CN220637526U - Parallel type clamp body capable of quickly replacing dies - Google Patents

Abstract

The utility model relates to the technical field of hardware tools, and discloses a parallel clamp body capable of quickly replacing dies, which comprises a clamp body, a first die, a second die and a quick-dismantling structure for connecting the dies with the clamp body; the pliers body comprises a first handle and a second handle which incline oppositely, wherein the first handle comprises a first hand holding part and a first bending and inclining part; the first bending inclined parts and the second bending inclined parts are arranged in a staggered way, and the staggered parts are rotationally connected through a third connecting shaft; the first handle is connected with the first transmission handle through a first limiting shaft, the first bending and tilting part is connected with the second transmission handle through a second connecting shaft, the second bending and tilting part is connected with the first handle through the first connecting shaft, and the second handle is connected with one end of the second transmission handle through the second limiting shaft; the quick-release structure is a threaded structure or an O-shaped ring structure or a push type structure or a jackscrew type structure. According to the utility model, the quick-dismantling structure is arranged, so that the die is easier to dismantle, and the die replacement is more convenient and quick.

Description

Parallel type clamp body capable of quickly replacing dies

Technical Field

The utility model relates to the technical field of hardware tools, in particular to a parallel clamp body capable of quickly replacing dies.

Background

The existing pressing and buckling pliers mainly pay attention to the design of the pliers body, but in the actual use process, multiple specifications of dies are often needed, the existing pressing and buckling pliers cannot be replaced with dies or are complicated in replacement mode, the original effect of the pressing and buckling holes cannot be achieved after the dies are replaced by the existing pressing and buckling pliers, the universality is poor, the various specifications of pressing and buckling pliers are reserved, inconvenience is brought to users, and the cost is increased; for example, in chinese patent application No. CN210999087U, the name is a punching device for IC card carrier tape, and the punching device has a small die opening distance, an oversized handle opening distance, a complex structure, a single die changing mode, and inconvenient die changing, although the punching positions are also parallel.

Disclosure of Invention

The purpose of the utility model is that: overcomes the defects existing in the prior art, and provides a parallel clamp body capable of quickly replacing dies.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a parallel clamp body capable of quickly replacing dies comprises a clamp body, a first die, a second die and two quick-release structures, wherein the first die and the second die are arranged at intervals, and the two quick-release structures are respectively used for connecting the first die with the clamp body and connecting the second die with the clamp body; the pliers body comprises a first handle and a second handle which incline oppositely, the first handle is identical with the second handle, the first handle comprises a first holding part and a first bending inclined part, and the second handle comprises a second holding part and a second bending inclined part which is integrally connected with the end part of the second holding part; the first bending inclined parts and the second bending inclined parts are arranged in a staggered way, and the staggered parts are rotationally connected through a third connecting shaft; the first handle is connected with the first transmission handle through a first limiting shaft, the first bending inclined part is connected with the second transmission handle through a second connecting shaft, the second bending inclined part is connected with the first transmission handle through the first connecting shaft, and the second handle is connected with one end of the second transmission handle through the second limiting shaft; the quick-release structure is a threaded structure or an O-shaped ring structure or a push type structure or a jackscrew type structure.

Further, the joint of the first hand holding part and the first bending and tilting part is connected with a first limiting shaft, a first limiting groove is formed in the first transmission handle corresponding to the first limiting shaft, a limiting piece is arranged at the rear end part of the first limiting shaft, and the first limiting groove is arranged along the movement direction of the first limiting shaft when the first handle and the second handle are held or loosened; the third connecting shaft is sleeved with an elastic piece, two ends of the elastic piece extend out of the elastic piece towards the opposite sides of the first handle and the second handle respectively, and the tail ends of the two elastic pieces are respectively abutted to the first holding part and the second holding part.

Further, a second die is arranged at one end of the first transmission handle, which is far away from the first handle, and the second die is connected with a corresponding fixed seat through a quick-dismantling structure or connected with the first transmission handle through a quick-dismantling structure; when the fixed seat is connected, the corresponding fixed seat is connected with the corresponding part of the first transmission handle through a detachable structure; the connection between the first die and the second transmission handle is the same as that between the first die and the second die; the first die and the second die comprise connecting bodies which are arranged close to one sides of the corresponding clamp bodies.

Further, the detachable structure corresponding to the first die comprises a fixing hole formed in the fixing seat corresponding to the second transmission handle, a second fixing hole is formed in the position, corresponding to the fixing hole, of the second transmission handle, and the fixing hole and the second fixing hole are in threaded connection with the fixing screw.

Further, the thread structure comprises an external thread arranged on the connecting body, a connecting hole matched with the connecting body is formed in the fixing seat, and an internal thread matched with the external thread is arranged in the connecting hole.

Further, the O-shaped ring structure comprises annular limiting grooves formed in the outer side of the connecting body, at least one limiting groove is formed in the limiting grooves, the connecting body is provided with O-shaped rings corresponding to the limiting groove sleeves, connecting holes matched with the connecting body are formed in the fixing base, second limiting grooves are formed in the connecting holes corresponding to the limiting grooves, and when the connecting body is inserted into the connecting holes, the O-shaped rings fall into the second limiting grooves.

Further, the pressing structure comprises an opening groove formed in one side, close to the fixing seat, of the connecting body inwards, and a body penetrating through the fixing seat; the body comprises a positioning part fixedly connected with the fixed seat and a connecting part spliced with the opening groove; the positioning part is provided with a positioning groove, the fixing seat is fixed with the positioning part through a fixing screw, and the bottom of the fixing screw is clamped into the positioning groove; a pressing hole is formed in one end of the positioning part inwards and is in sliding connection with the pressing shaft, a spherical groove is formed in the connecting part, pressing balls are arranged in the spherical groove, and two sides of each pressing ball protrude out of the spherical groove; the side wall of the opening groove is provided with a second arc groove, and the pressing shaft is correspondingly provided with an arc groove; one end of the pressing shaft protrudes out of the positioning part, the other end of the pressing shaft is connected with a pressing spring, and the pressing spring is connected with the bottom of the pressing hole; the bottom of the pressing hole is provided with a sliding hole, the diameter of the sliding hole is smaller than that of the pressing hole, the pressing shaft is fixedly connected with a pushing shaft, and the pushing shaft is in sliding connection with the sliding hole.

Further, the jackscrew type structure comprises a circumferential positioning structure, a groove type positioning structure or a combined positioning structure, a connecting hole is correspondingly formed in the fixing seat, and a positioning jackscrew is radially inserted into the connecting hole; the fixing seat is provided with a positioning hole communicated with the fixing seat along the radial direction of the connecting hole, and the positioning jackscrew is in threaded connection with the positioning hole.

Further, the circumferential positioning structure comprises an annular groove which is circumferentially arranged around the connecting body, the bottom of the positioning jackscrew is propped against the annular groove, the shape of the annular groove is matched with the shape of the bottom of the positioning jackscrew, and at least one positioning jackscrew is arranged; the groove type positioning structure comprises a waist line groove and a positioning groove which are circumferentially arranged around the connecting body, wherein at least one waist line groove is arranged, and at least one positioning groove is arranged; a sinking groove is formed in one end, close to the fixed seat, of the positioning jackscrew in the groove type positioning structure inwards, a jackscrew spring is arranged in the sinking groove, and jackscrew balls in rolling connection with the sinking groove are arranged at the opening of the sinking groove; one end of the waist line groove penetrates out of the end part of the connecting body, the other end of the waist line groove corresponds to the positioning groove in the axial direction, and the positioning groove abuts against the jackscrew ball; the combined positioning structure comprises an annular groove formed around the circumference of the connecting body, and a waist line groove and a positioning groove formed around the circumference of the connecting body; the positioning groove is positioned on the annular groove.

Further, when the fixing base is connected with the first transmission handle or the second transmission handle, the first connection mode is as follows: the fixed seat is clamped in the corresponding part of the first transmission handle or the second transmission handle; the second connection mode is as follows: the corresponding part of the first transmission handle or the second transmission handle is clamped into the fixing seat.

The beneficial effects of the utility model are as follows: the first handle, the second handle, the first transmission handle and the second transmission handle are arranged, the combination of the first hand-holding part and the first transmission handle is parallel to the combination of the second hand-holding part and the second transmission handle, the parallel structure prevents the occurrence of the conditions of buttonhole fracturing, crushing, deformation and the like, and improves the working efficiency and the buttonhole utilization rate; the difficult problem of angle adjustment is not considered when the die is assembled, so that the assembly efficiency of the tool is improved; through set up multiple quick detach structure between clamp body tip and mould, especially push type structure and jackscrew formula structure, only need press or rotate, can accomplish the dismantlement, the mould commonality is good, practices thrift user use cost, and quick detach structure makes the mould easier to dismantle, and the retooling is more convenient and fast, and the retooling mode is various.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial structure of the present utility model;

FIG. 3 is a schematic diagram of a die and a clamp body of the utility model connected by a thread structure;

FIG. 4 is a schematic diagram of the connection of a die and a clamp body by adopting an O-shaped ring structure;

FIG. 5 is a schematic diagram showing the connection of a die and a clamp body by adopting a push type structure;

FIG. 6 is a schematic cross-sectional view of a push-type structure of the present utility model;

FIG. 7 is a schematic diagram of the connection of a die and a clamp body by adopting an annular positioning structure;

FIG. 8 is a schematic diagram of a first type of groove-type positioning structure used to connect a die to a clamp body in accordance with the present utility model;

FIG. 9 is a schematic diagram of a second type of groove-type positioning structure used to connect a die to a clamp body in accordance with the present utility model;

FIG. 10 is a schematic view of a mold and clamp body of the present utility model connected by a first type of combined positioning structure;

FIG. 11 is a schematic view of a mold and clamp body of the present utility model connected by a second type of combined positioning structure;

FIG. 12 is a schematic cross-sectional view of a positioning jack in accordance with the present utility model;

FIG. 13 is a schematic view showing the internal structure of the connector in the push-type structure of the present utility model;

FIG. 14 is a schematic view of the positioning portion of the push-type structure of the present utility model directly connected to the connecting handle and the bending portion;

fig. 15 is a schematic view of a structure in which the fixing base is clamped by the end of the clamp body.

1, a first handle; 2. a second handle; 3. a first drive handle; 4. a second drive handle; 5. a first limit groove; 6. the second limit groove; 7. a first limiting shaft; 701. a first connecting shaft; 8. the second limiting shaft; 801. a second connecting shaft; 9. a third connecting shaft; 901. an elastic member; 10. a fixing seat; 11. a fixing hole; 12. a set screw; 13. a first mold; 14. a second mold; 15. a connection hole; 16. a connecting body; 17. an external thread; 18. a limit groove; 19. an O-ring; 20. a quick-release structure; 21. a body; 2101. a positioning groove; 2102. pressing the hole; 2103. pressing the shaft; 2104. pressing the spring; 2105. pushing the shaft; 2106. a spherical groove; 2107. pressing the ball; 2108. an arc-shaped groove; 2109. positioning holes; 2110. positioning a jackscrew; 2201. an annular groove; 2202. a positioning groove; 2203. lumbar slot.

Detailed Description

The utility model is further illustrated by the following description in conjunction with the accompanying drawings and specific embodiments.

Embodiment one:

as shown in fig. 1-3, a parallel clamp body capable of quickly replacing dies comprises a clamp body, a first die 13 and a second die 14 which are arranged at intervals, and two quick-dismantling structures 20 respectively used for connecting the first die 13 with the clamp body and connecting the second die 14 with the clamp body; the pliers body comprises a first handle 1 and a second handle 2 which incline oppositely, the structures and the sizes of the first handle 1 and the second handle 2 are the same, the first handle 1 comprises a first holding part and a first bending inclined part, the first holding part and the first bending inclined part are integrally arranged, the second handle 2 comprises a second holding part and a second bending inclined part which is integrally connected with the end part of the second holding part, and the second holding part and the second bending inclined part are integrally arranged; the first bending inclined parts and the second bending inclined parts are arranged in a staggered way, and the staggered parts are connected in a relative rotation way through a third connecting shaft 9; the first hand holding part and the second hand holding part are slightly inclined towards each other, and the inclination angle is smaller than that of the first bending inclination part and the second bending inclination part; the first handle 1 is connected with one end of a first transmission handle 3 which is vertically arranged through a first limiting shaft 7, one end of a first bending inclined part far away from a first hand holding part is connected with a second transmission handle 4 through a second connecting shaft 801, one end of a second bending inclined part far away from a second hand holding part is connected with the first transmission handle 3 through a first connecting shaft 701, the second handle 2 is connected with one end of a second transmission handle 4 which is vertically arranged through a second limiting shaft 8, and a third connecting shaft 9 is positioned between the first limiting shaft 7 and the first connecting shaft 701 in the vertical direction; the quick release structure 20 is a threaded structure.

The joint of the first hand holding part and the first bending and tilting part is rotationally connected with a first limiting shaft 7, a first limiting groove 5 is formed in the first transmission handle 3 corresponding to the first limiting shaft 7, a limiting piece is arranged at the rear end part of the first limiting shaft 7 penetrating through the first limiting groove 5, and the limiting piece can be a bolt; the second transmission handle 4 is provided with a third limit groove 6 at the joint corresponding to the second holding part and the second bending and tilting part; namely, the first handle 1, the first limiting shaft 7, the first connecting shaft 701, the first transmission handle 3 and the first limiting groove 5 are symmetrical to the second limiting shaft 8 of the second handle 2, the second limiting shaft 801, the second transmission handle 4 and the third limiting groove 6 in the vertical direction relative to the third connecting shaft 9, the first limiting groove 5 is arranged along the movement direction of the first limiting shaft 7 when the first handle 1 and the second handle 2 are gripped or released, and the third limiting groove 6 is also arranged according to the movement direction.

An elastic piece 901 is sleeved on the third connecting shaft 9, two ends of the elastic piece 901 extend out of an elastic strip towards the opposite sides of the first handle 1 and the second handle 2 respectively, and the tail ends of the two elastic strips are respectively abutted with the first holding part and the second holding part; the first holding part of the first handle 1 comprises two side plates which are arranged at intervals from front to back, one side of the first holding part is connected with a retaining plate of the two side plates, the second handle 2 has the same structure, the elastic piece 901 comprises a body, two ends of the body are respectively connected with an elastic strip which extends downwards, the body is a spring and is sleeved on the third connecting shaft 9 and fixed with the third connecting shaft, and the elastic strip has elasticity and extends to the retaining plate and is contracted inwards and outwards sprung out along with the holding and releasing of the two handles; the end parts of the two transmission handles, which are close to the two handles, are positioned between the two side plates.

The end, far away from the first handle 1, of the first transmission handle 3 is provided with a second die 14, the second die 14 is connected with the corresponding fixed seat 10 through a quick-dismantling structure 20 or the second die 14 is connected with the first transmission handle 3 through the quick-dismantling structure 20; when the fixed seat 10 is connected, the corresponding fixed seat 10 is connected with the corresponding part of the first transmission handle 3 through a detachable structure; the connection of the first mould 13 and the second transmission shank 4 is identical to the second mould 14; the first die 13 and the second die 14 each include a connecting body 16 provided near one side of the corresponding pincer body.

When the fixing seat 10 is connected with the first transmission handle 3 or the second transmission handle 4, the fixing seat can be clamped or fixed by a screw, and the fixing seat is provided with two connection modes, namely, the first connection mode: the fixing seat 10 is clamped in the corresponding part of the first transmission handle 3 or the second transmission handle 4, the first transmission handle 3 or the second transmission handle 4 in the situation is composed of two long handles arranged at intervals, and the fixing seat 10 is clamped in the interval; the second connection mode is as follows: the corresponding part of the first transmission handle 3 or the second transmission handle 4 is clamped into the fixed seat 10, in this case, one end of the first transmission handle 3 or the second transmission handle 4 clamped into the fixed seat 10 can be fixed with the end surface of the fixed seat 10, and the corresponding part of the first transmission handle 3 or the second transmission handle 4 rotates ninety degrees when the end surface is fixed, namely is parallel to the end surface of the fixed seat 10; the connection modes of the fixing seat 10 corresponding to the first die 13 and the second die 14 and the first transmission handle 3 or the second transmission handle 4 can be the same or different.

The fixing seat 10 is clamped into the end part of the clamp body or is fixed with the clamp body through bolts after clamping the end part of the clamp body, and the fixing seat 10 of a fixed type can be arranged for different quick-release structures 20, as shown in fig. 2 and 3, a cylinder shape or a cuboid shape can be adopted, the cross section is rectangular or circular, the clamp body is clamped when the middle part of the fixing seat 10 is slotted, and the clamp body is clamped when the clamp body is slotted.

As shown in fig. 15, the fixing base 10 is clamped into the end of the clamp body, and the corresponding part of the clamp body is generally two long handles arranged at intervals, and the fixing base 10 is positioned therein.

The detachable structure corresponding to the first die 13 comprises a fixing hole 11 formed in the end, away from the second handle 2, of the fixing seat 10 corresponding to the second transmission handle 4, a second fixing hole is formed in the position, corresponding to the fixing hole 11, of the second transmission handle 4, and the fixing hole 11 and the second fixing hole are in threaded connection with a fixing screw 12.

The screw thread structure includes the external screw thread 17 that sets up on connector 16, and fixing base 10 has seted up the connecting hole 15 with connector 16 adaptation, and the position size is all corresponding, is provided with the internal screw thread with external screw thread 17 complex in the connecting hole 15, and fixing base 10 is fixed with first mould 13 or second mould 14 through the cooperation of external screw thread 17 and internal screw thread.

When the quick-release structure 20 is directly connected with the first transmission handle 3 or the second transmission handle 4, one end of the quick-release structure 20 is directly clamped into the first transmission handle 3 or the second transmission handle 4; in this embodiment, the connecting hole 15 is directly formed on the first transmission handle 3 or the second transmission handle 4; in this way, the corresponding part of the first transmission handle 3 or the second transmission handle 4 is thickened.

The working process comprises the following steps: the connecting body 16 is screwed to be separated from the connecting hole 15, and die changing is completed.

Embodiment two:

as shown in fig. 4, unlike the first embodiment, the quick release structure 20 is an O-ring structure.

The O-shaped ring structure comprises annular limiting grooves 18 formed in the outer side of a connecting body 16, at least one limiting groove 18 is formed, a plurality of limiting grooves 18 are formed in sequence along the axial direction of the connecting body 16, the connecting body 16 is sleeved with O-shaped rings 19 corresponding to the limiting grooves 18, a connecting hole 15 matched with the connecting body 16 is formed in the fixing base 10, a second limiting groove is formed in the connecting hole 15 corresponding to the limiting grooves 18, when the connecting body 16 is inserted into the connecting hole 15, the O-shaped rings 19 fall into the second limiting grooves, the cross sections of the limiting grooves 18 and the second limiting grooves are semicircular, and the diameter is different from the inner diameter of the O-shaped rings 19.

When the quick release structure 20 is directly connected with the first transmission handle 3 or the second transmission handle 4, in this embodiment, a connection hole 15 is formed on the first transmission handle 3 or the second transmission handle 4; in this way, the corresponding part of the first transmission handle 3 or the second transmission handle 4 is thickened.

The working process comprises the following steps: the die change is completed by directly pulling out the connecting body 16 with one or two O-rings from the connecting hole 15.

Embodiment III:

as shown in fig. 5, 6 and 13, unlike the first embodiment, the quick release structure 20 is a push-type structure.

The pressing structure comprises an opening groove formed inwards at one side of the connecting body 16, which is close to the fixed seat 10, and a body 21 which penetrates through the fixed seat 10; the body 21 comprises a positioning part fixedly connected with the fixing seat 10 and a connecting part spliced with an opening groove, wherein the positioning part is cylindrical, and the cross sections of the opening groove and the connecting part are rectangular, so that the splicing is convenient and the pressing ball 2107 is arranged; the positioning part is fixedly connected with the fixing base 10 through a positioning jackscrew 2110, the positioning part is provided with a positioning groove 2101, the fixing base 10 is fixed with the positioning part through a fixing screw 12, and the bottom of the fixing screw 12 is clamped into the positioning groove 2101; one end of the positioning part far away from the die is internally provided with a pressing hole 2102 facing the die, the pressing hole 2102 is in sliding connection with a pressing shaft 2103, the connecting part is provided with a spherical groove 2106, the outside of the connecting part is communicated with the inside of the pressing hole 2102, the spherical groove 2106 is internally provided with a pressing ball 2107, and two sides of the pressing ball 2107 are provided with protruding spherical grooves 2106; the open slot lateral wall is provided with the second arc wall, presses and is provided with arc wall 2108 on the axle 2103 corresponds, and spherical groove 2106, second arc wall and arc wall 2108 are located the coplanar in body 21 length direction.

One end of the pressing shaft 2103 is provided with a protruding positioning part, the other end of the pressing shaft is connected with a pressing spring 2104, and the pressing spring 2104 is connected with the bottom of the pressing hole 2102; the sliding hole is formed in the bottom of the pressing hole 2102, the diameter of the sliding hole is smaller than that of the pressing hole 2102, the pressing shaft 2103 is fixedly connected with a pushing shaft 2105, the pushing shaft 2105 is in sliding connection with the sliding hole, and the pushing shaft 2105 is located inside the pressing spring 2104.

The positioning part faces the direction of the die and is the length direction of the body 21; when the connection portion is inserted into the open slot and the pressing spring 2104 is in a relaxed state, that is, the pressing shaft 2103 is not pushed, a gap is formed between one end of the pushing shaft 2105, which is far away from the pressing shaft 2103, and the bottom of the open slot, and the gap size is smaller than the distance between the pressing ball 2107 and the arc slot 2108 along the length direction of the body 21 in the state, or the bottom of the pushing shaft 2105 can be abutted against the bottom of the open slot in the state without the gap, and the pushing shaft 2105 is arranged so as to compress the pressing spring 2104, so that the arc slot 2108 moves to enable one side of the pressing ball 2107 to fall into the opening slot, and when the body 21 is pulled out, the pushing shaft 2105 can prop the bottom of the open slot to assist detachment.

The diameter of the spherical groove 2106 is larger than that of the pressing ball 2107, and the diameter of the cross section of the spherical groove 2106 on the surface of the connecting part is smaller than that of the pressing ball 2107, so that the pressing ball 2107 can move to the arc-shaped groove 2108 and the second arc-shaped groove respectively in the spherical groove 2106 without being separated from the spherical groove 2106; when adopting the push type structure, because the push type structure is protruding at the tip, the whole fixing base 10 that passes of push type structure is in order to make push type structure 2103 at its other end protrusion, is convenient for press down, reduces the pincers body opening distance, and this kind of fixing base 10 can adopt two shapes the same and the clamping lever of lock each other, and the clamping lever includes the rectangular form position of being connected with the pincers body and with be used for from the arc pole of locating part side centre gripping.

In addition, in order to make the quick release structure 20 more compatible with the connector 16, the diameters of the connectors 16 corresponding to the screw-type structure, the O-ring-type structure and the jackscrew-type structure are smaller, generally smaller than the corresponding mold diameter, and the diameters of the connectors 16 corresponding to the push-type structure are larger.

As shown in fig. 14, when the quick release structure 20 is directly connected to the first transmission handle 3 or the second transmission handle 4, in this embodiment, the positioning portion of the body 21 is directly clamped in from one end of the first transmission handle 3 and one end of the second transmission handle 4, the section of the positioning portion is rectangular, and meanwhile, the pressing shaft 2103 passes through the other end of the first transmission handle 3 and the second transmission handle 4 and is slidably connected with the pressing shaft 2103 or the connecting hole 15 is formed on the first transmission handle 3 and the second transmission handle 4, and the positioning portion is clamped in the connecting hole 15 and is fixed by the positioning jackscrew 2110; in this way, the corresponding part of the first transmission handle 3 or the second transmission handle 4 is thickened or the corresponding part of the clamp body shown in fig. 14 is composed of two long handles with interval distances, and the two long handles are provided with intervals for the positioning part to be clamped in.

The working process comprises the following steps: when the mold needs to be replaced, the first mold 13 and the second mold 14 are replaced in sequence, the pressing shaft 2103 is pressed from the position, away from the mold, of the fixing seat 10, the pressing shaft 2103 slides in the pressing hole 2102, the pressing ball 2107 is positioned between the arc-shaped groove 2108 and the pressing spring 2104 in the connected state, the pressing spring 2104 is compressed, the arc-shaped groove 2108 moves to the position of the pressing ball 2107, the part, protruding into the pressing hole 2102, of the pressing ball 2107 falls into the arc-shaped groove 2108, meanwhile, the pushing shaft 2106 is mutually abutted against the bottom of the opening groove, the mold is pulled, the pressing ball 2107 can fall into the arc-shaped groove 2108, and therefore can be separated from the second arc-shaped groove, and then the mold is separated from the connecting part; then take new mould, with the connecting portion of the open slot corresponding body 21 of new mould, insert to pressing ball 2107 directly and fall into corresponding second arc groove or press down pressing shaft 2103 and make arc groove 2108 and spherical groove 2106 correspond, and then make pressing ball 2107 fall into arc groove 2108 earlier, then fall into the second arc groove when pressing ball 2107 corresponds, loosen pressing shaft 2103 and make pressing ball 2107 one side fall into the second arc groove, the opposite side offsets with pressing shaft 2103 smooth part's side, fix new mould, the retooling is accomplished.

Embodiment four:

as shown in fig. 7 to 12, unlike the first embodiment, the quick release structure 20 is a jack screw type structure.

The jackscrew type structure comprises a circumferential positioning structure, a groove type positioning structure or a combined type positioning structure, a connecting hole 15 correspondingly formed in the fixing seat 10, and a positioning jackscrew 2110 radially inserted into the connecting hole 15; the fixing base 10 is radially provided with a positioning hole 2109 communicated with the connecting hole 15, and a positioning jackscrew 2110 is in threaded connection with the positioning hole 2109; the connector 16 is inserted into the connection hole 15 and is fixed by the positioning jack 2110.

As shown in fig. 7, the circumferential positioning structure comprises an annular groove 2201 circumferentially arranged around the connecting body 16, the bottom of the positioning jackscrew 2110 is propped against the annular groove 2201, the shape of the annular groove 2201 is matched with the shape of the bottom of the positioning jackscrew 2110, and at least one positioning jackscrew 2110 is arranged; the groove type positioning structure comprises a waist line groove 2203 and a positioning groove 2202 which are circumferentially arranged around the connecting body 16, wherein at least one waist line groove 2203 is arranged, and at least one positioning groove 2202 is arranged.

As shown in fig. 8 and 9, a sinking groove is formed inwards at one end, close to the fixed seat 10, of the positioning jackscrew 2110 in the groove type positioning structure, a jackscrew spring is arranged in the sinking groove, jackscrew balls in rolling connection with the sinking groove are arranged at the opening of the sinking groove, and the standard piece of the positioning jackscrew 2110 used in the groove type positioning structure can be directly purchased in the market; when the plurality of waist line grooves 2203 and the positioning grooves 2202 are arranged, the waist line grooves 2203 and the positioning grooves 2202 are staggered, the quantity is equal, and when the waist line grooves 2203 and the positioning grooves 2202 are respectively arranged in two; one end of the waist line groove 2203 penetrates out of the end part of the connecting body 16, the other end corresponds to the positioning groove 2202 in the axial direction, and the positioning groove 2202 abuts against the jackscrew ball.

As shown in fig. 8, there is only one detent 2202, which is a first type of groove-type detent structure; as shown in fig. 9, there are two symmetrical detent recesses 2202, which are of the second type.

As shown in fig. 10 and 11, the combined positioning structure includes an annular groove 2201 formed circumferentially around the connecting body 16, and a belt line groove 2203 and a positioning groove 2202 formed circumferentially around the connecting body 16; the positioning groove 2202 is positioned on the annular groove 2201, at least one waist line groove 2203 of the positioning structure is arranged, and at least one positioning groove 2202 is arranged; the waist line groove 2203 and the positioning groove 2202 are arranged in a staggered way, one end of the waist line groove 2203 penetrates out of the end part of the connecting body 16, the other end of the waist line groove corresponds to the positioning groove 2202 in the axial direction, and the positioning groove 2202 abuts against and is matched with the ball jackscrew; the cross section of the groove surface of the annular groove 2201 along the radial direction of the connecting body 16 is an arc line or a V-shaped line; only the first mold 13 and the second mold 14 need to be rotated, the connecting body 16 rotates to separate the jackscrew balls from the positioning groove 2202, and the jackscrew balls are pulled out of the molds after being transferred into the waist line groove 2203 along the annular groove 2201; the symmetrical positioning grooves 2202 enable the die to be more stable, the die head can not swing and rotate, and the effect is the same as that of an integral die.

As shown in fig. 10, there is only one detent 2202, which is a first type of combined detent structure; as shown in fig. 11, there are two symmetrical detent recesses 2202, which are of the second type of combined detent structure.

When the two quick release structures 20 are directly connected with the first transmission handle 3 and the second transmission handle 4, the connecting hole 15 and the positioning hole 2109 in the embodiment are both formed on the first transmission handle 3 and the second transmission handle 4; in this way, the corresponding part of the first transmission handle 3 or the second transmission handle 4 is thickened.

The working process comprises the following steps: for a circumferential positioning structure: the first mold 13 and the second mold 14 can be removed by screwing the positioning jack 2110 into the annular groove 2201 until the bottom of the positioning jack 2110 is spaced from the surface of the connector 16.

For a groove type positioning structure: the die is rotated, namely the connector 16 is rotated, the jackscrew balls compress the jackscrew spring, the jackscrew balls come out of the positioning groove 2202, the jackscrew balls are positioned on the surface of the connector 16, the connector 16 is directly pulled out, or the jackscrew balls fall into the waist line groove 2203 and then pulled out, and the jackscrew spring is in a compressed state during the period; during installation, the jackscrew ball corresponds to the waist line groove 2203, then the connecting body 16 is inserted into the connecting hole 15, the jackscrew ball enters one end of the waist line groove 2203 close to the die and corresponds to the positioning groove 2202 in the circumferential direction, the connecting body 16 is rotated, the jackscrew spring is compressed until the jackscrew ball falls into the positioning groove 2202, the jackscrew ball stretches in the falling process, and the jackscrew spring is kept in a compressed state at all times, so that the jackscrew ball is tightly abutted against the positioning groove 2202.

For a combined positioning structure: the rotating die, namely the rotating connecting body 16, is used for compressing the jackscrew spring by the jackscrew ball, so that the jackscrew ball comes out of the positioning groove 2202, enters the annular groove 2201 and moves along the annular groove, and the connecting body 16 is directly pulled out or rotated until the jackscrew ball falls into the waistline groove 2203 and then is pulled out; when the jack screw ball is installed, the jack screw ball corresponds to the waist line groove 2203, then the connecting body 16 is inserted into the connecting hole 15, the jack screw ball enters one end of the waist line groove 2203 close to the die and corresponds to the positioning groove 2202 in the circumferential direction, the connecting body 16 is rotated, the jack screw ball enters the annular groove 2201, meanwhile, the jack screw spring is compressed, the jack screw spring continues to rotate until the jack screw ball falls into the positioning groove 2202, the jack screw spring stretches in the falling process, and the jack screw spring is kept in a compressed state at all times, so that the jack screw ball is tightly abutted against the positioning groove 2202; the positioning jack 2110 can be screwed on, loosened or tightened if necessary.

The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.

Claims (10)

1. A parallel clamp body capable of quickly replacing dies is characterized in that: the quick-release clamp comprises a clamp body, a first die (13) and a second die (14) which are arranged at intervals, and two quick-release structures (20) which are respectively used for connecting the first die (13) with the clamp body and connecting the second die (14) with the clamp body; the pliers body comprises a first handle (1) and a second handle (2) which incline oppositely, the first handle (1) is the same as the second handle (2), the first handle (1) comprises a first holding part and a second bending inclined part which is integrally connected with the end part of the second holding part, and the second handle (2) comprises a second holding part and a second bending inclined part which is integrally connected with the end part of the first holding part; the first bending inclined parts and the second bending inclined parts are arranged in a staggered way, and the staggered parts are rotationally connected through a third connecting shaft (9); the first handle (1) is connected with the first transmission handle (3) through a first limiting shaft (7), the first bending inclined part is connected with the second transmission handle (4) through a second connecting shaft (801), the second bending inclined part is connected with the first transmission handle (3) through a first connecting shaft (701), and the second handle (2) is connected with one end of the second transmission handle (4) through a second limiting shaft (8); the quick release structure (20) is a threaded structure or an O-shaped ring structure or a push type structure or a jackscrew type structure.

2. The quick die change parallel clamp body according to claim 1, wherein: the joint of the first holding part and the first bending and tilting part is connected with a first limiting shaft (7), a first limiting groove (5) is formed in the first transmission handle (3) corresponding to the first limiting shaft (7), a limiting piece is arranged at the rear end part of the first limiting shaft (7) penetrating through the first limiting groove (5), and the first limiting groove (5) is arranged along the movement direction of the first limiting shaft (7) when the first handle (1) and the second handle (2) are held or loosened; an elastic piece (901) is sleeved on the third connecting shaft (9), two ends of the elastic piece (901) extend out of an elastic strip towards opposite sides of the first handle (1) and the second handle (2) respectively, and tail ends of the two elastic strips are abutted to the first holding part and the second holding part respectively.

3. The quick die change parallel clamp body according to claim 1, wherein: one end of the first transmission handle (3) far away from the first handle (1) is provided with a second die (14), the second die (14) is connected with a corresponding fixed seat (10) through a quick-dismantling structure (20), or the second die (14) is connected with the first transmission handle (3) through the quick-dismantling structure (20); when the fixed seat (10) is connected, the corresponding position of the corresponding fixed seat (10) and the first transmission handle (3) is connected through a detachable structure; the connection between the first mould (13) and the second transmission handle (4) is the same as that of the second mould (14); the first die (13) and the second die (14) comprise connecting bodies (16) which are arranged close to one sides of the corresponding clamp bodies.

4. A quick-change parallel clamp according to claim 3, wherein: the detachable structure corresponding to the first die (13) comprises a fixing hole (11) formed in the fixing seat (10) corresponding to the second transmission handle (4), a second fixing hole is formed in the position, corresponding to the fixing hole (11), of the second transmission handle (4), and the fixing hole (11) and the second fixing hole are in threaded connection with a fixing screw (12) at the same time.

5. A quick-change parallel clamp according to claim 3, wherein: the screw thread structure comprises an external thread (17) arranged on a connecting body (16), a connecting hole (15) matched with the connecting body (16) is formed in the fixing seat (10), and an internal thread matched with the external thread (17) is arranged in the connecting hole (15).

6. A quick-change parallel clamp according to claim 3, wherein: the O-shaped ring type structure comprises annular limiting grooves (18) formed in the outer side of a connecting body (16), at least one limiting groove (18) is formed in the limiting grooves (18), O-shaped rings (19) are sleeved on the connecting body (16) corresponding to the limiting grooves (18), connecting holes (15) matched with the connecting body (16) are formed in the fixing base (10), second limiting grooves are formed in the connecting holes (15) corresponding to the limiting grooves (18), and when the connecting body (16) is inserted into the connecting holes (15), the O-shaped rings (19) fall into the second limiting grooves.

7. A quick-change parallel clamp according to claim 3, wherein: the pressing structure comprises an opening groove formed in one side, close to the fixed seat (10), of the connecting body (16) inwards and a body (21) penetrating through the fixed seat (10); the body (21) comprises a positioning part fixedly connected with the fixed seat (10) and a connecting part spliced with the opening groove; the positioning part is provided with a positioning groove (2101), the fixing seat (10) is fixed with the positioning part through a fixing screw (12), and the bottom of the fixing screw (12) is clamped into the positioning groove (2101); a pressing hole (2102) is formed in one end of the positioning part inwards, the pressing hole (2102) is connected with the pressing shaft (2103) in a sliding mode, a spherical groove (2106) is formed in the connecting part, pressing balls (2107) are arranged in the spherical groove (2106), and two sides of the pressing balls (2107) protrude out of the spherical groove (2106); the side wall of the open slot is provided with a second arc slot, and the pressing shaft (2103) is correspondingly provided with an arc slot (2108); one end of the pressing shaft (2103) protrudes out of the positioning part, the other end of the pressing shaft is connected with a pressing spring (2104), and the pressing spring (2104) is connected with the bottom of the pressing hole (2102); the bottom of the pressing hole (2102) is provided with a sliding hole, the diameter of the sliding hole is smaller than that of the pressing hole (2102), the pressing shaft (2103) is fixedly connected with a pushing shaft (2105), and the pushing shaft (2105) is in sliding connection with the sliding hole.

8. A quick-change parallel clamp according to claim 3, wherein: the jackscrew structure comprises a circumferential positioning structure, a groove type positioning structure or a combined positioning structure, a connecting hole (15) correspondingly formed in the fixing seat (10), and a positioning jackscrew (2110) radially inserted into the connecting hole (15); the fixing seat (10) is radially provided with a positioning hole (2109) communicated with the connecting hole (15), and the positioning jackscrew (2110) is in threaded connection with the positioning hole (2109).

9. The quick die change parallel clamp body according to claim 8, wherein: the circumferential positioning structure comprises an annular groove (2201) formed around the circumference of the connecting body (16), the bottom of the positioning jackscrew (2110) is propped against the annular groove (2201), the shape of the annular groove (2201) is matched with the shape of the bottom of the positioning jackscrew (2110), and at least one positioning jackscrew (2110) is arranged; the groove type positioning structure comprises a waist line groove (2203) and a positioning groove (2202) which are circumferentially arranged around the connecting body (16), wherein at least one waist line groove (2203) is arranged, and at least one positioning groove (2202) is arranged; a sinking groove is formed inwards at one end, close to the fixed seat (10), of a positioning jackscrew (2110) in the groove type positioning structure, a jackscrew spring is arranged in the sinking groove, and jackscrew balls in rolling connection with the sinking groove are arranged at the opening of the sinking groove; one end of the waist line groove (2203) penetrates out of the end part of the connecting body (16), the other end of the waist line groove corresponds to the positioning groove (2202) in the axial direction, and the positioning groove (2202) abuts against the jackscrew ball; the combined positioning structure comprises an annular groove (2201) circumferentially arranged around the connecting body (16), a waist line groove (2203) and a positioning groove (2202) circumferentially arranged around the connecting body (16); the positioning groove (2202) is positioned on the annular groove (2201).

10. A quick-change parallel clamp according to claim 3 or 4, characterized in that: when the fixing seat (10) is connected with the first transmission handle (3) or the second transmission handle (4), the first connection mode is as follows: the fixing seat (10) is clamped in the corresponding part of the first transmission handle (3) or the second transmission handle (4); the second connection mode is as follows: the corresponding part of the first transmission handle (3) or the second transmission handle (4) is clamped into the fixing seat (10).