CN215280933U

CN215280933U - Adjustable center frame

Info

Publication number: CN215280933U
Application number: CN202120892675.7U
Authority: CN
Inventors: 郑永闯
Original assignee: Kunshan Schneider Precision Machinery Co ltd
Current assignee: Kunshan Schneider Precision Machinery Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-12-24
Anticipated expiration: 2031-04-26

Abstract

The utility model relates to the technical field of machining, in particular to an adjustable center frame, which solves the defect of insufficient clamping force in the prior art and comprises a mounting plate, wherein the top of the mounting plate is respectively fixed with a symmetrically arranged fixed plate and a symmetrically arranged supporting seat through bolts, the top of the fixed plate is fixedly provided with a cylinder through bolts, the inside of the cylinder is provided with a piston rod, the end part of the piston rod is fixedly provided with a connecting plate through screws, two supporting seats are respectively provided with a supporting seat, the top of one supporting seat is welded with a symmetrically arranged guide rod, and through the arrangement of structures such as a fixed block, a first pressing block, a second pressing block and the supporting seat, when in processing, on the basis of combining and supporting a workpiece and clamping the workpiece from two sides, the two pressing blocks are added to further press the workpiece from the upper part to provide enough clamping force, thereby effectively solving the problem of vibration and deviation in the process of processing the workpiece.

Description

Adjustable center frame

Technical Field

The utility model relates to the technical field of machining, especially, relate to an adjustable centre frame.

Background

The field of domestic machining is rapidly developing, and the whirling milling is a high-speed thread milling device matched with a common lathe, and a thread machining method for milling threads from a workpiece by using a hard alloy forming cutter arranged on a high-speed rotating cutter head.

In the prior art, the following two methods are generally adopted when long-axis workpieces are cut: firstly, utilize the support to support the work piece, secondly adopt two clamping blocks to press from both sides the work piece tight from both sides, no matter adopt which kind of method clamp force all not enough, the work piece still can squint when processing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the clamp force is not enough in the prior art, and the adjustable centre frame that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an adjustable center frame comprises a mounting plate, wherein symmetrically arranged fixing plates and symmetrically arranged supporting seats are fixed to the top of the mounting plate through bolts respectively, an air cylinder is fixedly mounted at the top of the fixing plate through bolts, a piston rod is arranged inside the air cylinder, a connecting plate is fixed to the end of the piston rod through screws, and one side of the connecting plate is connected with a fixing block through a countersunk bolt;

supporting seats are arranged inside the two supporting seats, guide rods which are symmetrically arranged are welded at the top of one of the supporting seats, first top plates are welded at the top ends of the two guide rods, a first pressing block is movably sleeved outside the guide rods, a second screw rod and a guide pillar are respectively arranged at the top of the other supporting seat, the other ends of the second screw rod and the guide pillar are connected with the second top plates, lifting blocks are sleeved outside the second screw rod and the guide pillar, a second pressing block is arranged on one side of each lifting block in a sliding mode, and a transverse plate is fixed between the first pressing block and the second pressing block;

one side welding of one of them connecting plate has L type connecting rod, and the tip of L type connecting rod is fixed with the rack, the fixed cover in outside of second screw rod is equipped with the gear, the gear is connected with the rack meshing.

Preferably, a sliding block is fixed on one side of the bottom of the connecting plate through a screw, a guide rail is fixed on the top of the mounting plate through a countersunk head screw, and the sliding block is in sliding connection with the guide rail.

Preferably, a rectangular groove is formed in the supporting seat, the supporting seat is connected with the rectangular groove in a sliding mode, a first screw rod is rotatably installed at the bottom of the supporting seat through a bearing, and the first screw rod is installed on the supporting seat in a threaded mode.

Preferably, the second screw is rotatably mounted between one of the supporting seats and the second top plate through a bearing, and the guide post is fixed between the supporting seat and the second top plate.

Preferably, the first press block and the lifting block are respectively provided with a first guide hole and a second guide hole inside, the guide rod and the guide pillar are respectively embedded into the first guide hole and the second guide hole, the lifting block is further provided with a threaded hole inside, and the second screw is in threaded connection with the threaded hole.

Preferably, one side of the lifting block is provided with symmetrically arranged sliding grooves, and the second pressing block is in sliding connection with the sliding grooves.

The utility model has the advantages that:

1. the utility model discloses in through the setting of fixed block, first briquetting, second briquetting and bearing isotructure, add man-hour, on combining the supporting workpiece, pressing from both sides the basis of tight work piece from both sides, add two briquettings and further compress tightly the work piece from the top, provide sufficient clamp force to the problem of vibration skew in the work piece course of working has been solved effectively.

2. The utility model discloses in through the setting of L type connecting rod, gear, rack isotructure, can act on two briquetting downstream automatically after the cylinder action, only adopted a driving source, degree of automation is high, low in manufacturing cost.

3. The utility model discloses in through the setting of first screw rod and elevator isotructure, to the work piece of not equidimension, can adjust the height of bearing and the initial position of briquetting, application scope is wider.

Drawings

Fig. 1 is a schematic structural view of an adjustable center frame according to the present invention;

fig. 2 is an enlarged view of a position a of the adjustable center frame provided by the present invention;

fig. 3 is a front sectional view of the supporting seat of the present invention.

In the figure: the device comprises a mounting plate 1, a fixing plate 2, a cylinder 3, a piston rod 4, a fixing block 5, a connecting plate 6, a sliding block 7, a supporting seat 8, a rectangular groove 81, a supporting seat 9, a first screw rod 10, a first pressing block 11, a transverse plate 12, a first top plate 13, a connecting rod 14L-shaped, a guide rod 15, a rack 16, a gear 17, a second top plate 18, a guide pillar 19, a sliding groove 20, a second pressing block 21 and a second screw rod 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an adjustable center frame comprises a mounting plate 1, wherein the top of the mounting plate 1 is respectively fixed with a fixing plate 2 and a supporting seat 8 which are symmetrically arranged through bolts, the top of the fixing plate 2 is fixedly provided with an air cylinder 3 through bolts, a piston rod 4 is arranged inside the air cylinder 3, the end part of the piston rod 4 is fixed with a connecting plate 6 through a screw, and one side of the connecting plate 6 is connected with a fixing block 5 through a sunk bolt; the supporting seats 9 are arranged inside the two supporting seats 8, the top of one supporting seat 8 is welded with guide rods 15 which are symmetrically arranged, the top ends of the two guide rods 15 are welded with first top plates 13, first pressing blocks 11 are movably sleeved outside the guide rods 15, the top of the other supporting seat 8 is respectively provided with second screw rods 22 and guide pillars 19, the other ends of the second screw rods 22 and the guide pillars 19 are connected with second top plates 18, lifting blocks are sleeved outside the second screw rods 22 and the guide pillars 19, one sides of the lifting blocks are provided with second pressing blocks 21 in a sliding mode, and transverse plates 12 are fixed between the first pressing blocks 11 and the second pressing blocks 21; one side of one of the connecting plates 6 is welded with an L-shaped connecting rod 14, a rack 16 is fixed at the end part of the L-shaped connecting rod 14, a gear 17 is fixedly sleeved outside the second screw 22, and the gear 17 is meshed with the rack 16.

The structure of the fixing block 5, the first pressing block 11, the second pressing block 21, the supporting seat 9 and the like is adopted, during machining, on the basis of combining and supporting a workpiece and clamping the workpiece from two sides, the two pressing blocks are additionally arranged to further press the workpiece from the upper side, and sufficient clamping force is provided, so that the problem of vibration deviation in the machining process of the workpiece is effectively solved, through the structure of the L-shaped connecting rod, the gear 17, the rack 16 and the like, the two pressing blocks can automatically act to move downwards after the cylinder 3 acts, only one driving source is adopted, the automation degree is high, the manufacturing cost is low, through the structure of the first screw rod 10, the lifting block and the like, the height of the supporting seat 9 and the initial position of the pressing blocks can be adjusted according to workpieces with different sizes, and the application range is wide.

A slide block 7 is fixed on one side of the bottom of the connecting plate 6 through a screw, a guide rail is fixed on the top of the mounting plate 1 through a sunk screw, the slide block 7 is connected with the guide rail in a sliding way, a rectangular groove 81 is arranged inside the supporting seat 8, the supporting seat 9 is connected with the rectangular groove 81 in a sliding way, a first screw 10 is rotatably arranged on the bottom of the supporting seat 9 through a bearing, the first screw 10 is arranged on the supporting seat 8 in a threaded way, a second screw 22 is rotatably arranged between one supporting seat 8 and the second top plate 18 through a bearing, a guide post 19 is fixed between the supporting seat 8 and the second top plate 18, a first guide hole and a second guide hole are respectively arranged inside the first press block 11 and the lifting block, a guide rod 15 and the guide post 19 are respectively embedded inside the first guide hole and the second guide hole, a threaded hole is also arranged inside the lifting block, the second screw 22 is in threaded connection with the threaded hole, and a sliding groove 20 which is symmetrically arranged on one side of the lifting block, the second pressing block 21 is slidably connected with the sliding groove 20.

In the embodiment, during cutting, firstly, according to the size of a long shaft part, a person can rotate the first screw rod 10, the first screw rod 10 can drive the supporting seat 9 to move up and down in the rectangular groove 81 to change the height, meanwhile, the starting positions of the first pressing block 11 and the second pressing block 21 can be adjusted, after the adjustment is finished, the screw on the second pressing block 21 is screwed, so that the second pressing block and the lifting block are fixed, and the first pressing block 11 automatically slides along the guide rod 15 in the adjusting process;

further, a workpiece is inserted from one side of the tool, the bottom of the workpiece is supported by the supporting seat 9, then the two cylinders 3 are started, the piston rods 4 of the cylinders 3 extend out, the connecting plates 6 are pushed to slide oppositely, on one hand, the sliding blocks 7 are driven to slide simultaneously, the stability is high, on the other hand, the two fixing blocks 5 and the L-shaped connecting rod 14 are driven to move, the workpiece is pressed tightly from two sides by the two fixing blocks 5, meanwhile, the L-shaped connecting rod 14 drives the rack 16 to move, the rack 16 acts on the gear 17 and the second screw 22 fixedly sleeved in the gear 17 to rotate, the lifting block is driven to slide downwards along the second screw 22 under the action of the second screw 22, the lifting block drives the first pressing block 11 on one side to move downwards, and the first pressing block 11 simultaneously drives the second pressing block 21 to move together, so that the workpiece is pressed tightly from the upper side;

it should be noted that the fixed block 5 and the pressing block are in contact with the workpiece after moving, and the mechanisms cannot be clamped.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An adjustable center frame comprises a mounting plate (1) and is characterized in that symmetrically-arranged fixing plates (2) and symmetrically-arranged supporting seats (8) are fixed to the top of the mounting plate (1) through bolts respectively, an air cylinder (3) is fixedly mounted to the top of the fixing plates (2) through bolts, a piston rod (4) is arranged inside the air cylinder (3), a connecting plate (6) is fixed to the end portion of the piston rod (4) through a screw, and one side of the connecting plate (6) is connected with a fixing block (5) through a sunk bolt;

supporting seats (9) are arranged inside the two supporting seats (8), guide rods (15) which are symmetrically arranged are welded on the top of one supporting seat (8), first top plates (13) are welded on the top ends of the two guide rods (15), first press blocks (11) are movably sleeved outside the guide rods (15), second screw rods (22) and guide pillars (19) are respectively arranged on the top of the other supporting seat (8), the other ends of the second screw rods (22) and the guide pillars (19) are connected with second top plates (18), lifting blocks are sleeved outside the second screw rods (22) and the guide pillars (19), second press blocks (21) are arranged on one sides of the lifting blocks in a sliding mode, and transverse plates (12) are fixed between the first press blocks (11) and the second press blocks (21);

one side welding of one of them connecting plate (6) has L type connecting rod (14), and the tip of L type connecting rod (14) is fixed with rack (16), the outside fixed cover of second screw rod (22) is equipped with gear (17), gear (17) and rack (16) meshing are connected.

2. The adjustable center frame according to claim 1, wherein a sliding block (7) is fixed on one side of the bottom of the connecting plate (6) through a screw, a guide rail is fixed on the top of the mounting plate (1) through a countersunk head screw, and the sliding block (7) is in sliding connection with the guide rail.

3. The adjustable center frame as claimed in claim 1, wherein a rectangular groove (81) is formed in the supporting seat (8), the supporting seat (9) is slidably connected with the rectangular groove (81), a first screw (10) is rotatably mounted at the bottom of the supporting seat (9) through a bearing, and the first screw (10) is threadedly mounted on the supporting seat (8).

4. The adjustable steady rest of claim 1, wherein the second threaded rod (22) is rotatably mounted between one of the support blocks (8) and the second top plate (18) by means of bearings, and the guide post (19) is fixed between the support block (8) and the second top plate (18).

5. The adjustable center frame as claimed in claim 1, wherein the first pressing block (11) and the lifting block have a first guide hole and a second guide hole respectively formed therein, the guide rod (15) and the guide post (19) are embedded in the first guide hole and the second guide hole respectively, the lifting block has a threaded hole formed therein, and the second screw (22) is in threaded connection with the threaded hole.

6. The adjustable center frame according to claim 1, wherein one side of the lifting block is provided with symmetrically arranged sliding grooves (20), and the second pressing block (21) is slidably connected with the sliding grooves (20).