CN111730107A - A cage pocket machining device - Google Patents

Abstract

The invention relates to the technical field of bearing processing, in particular to a cage pocket processing device, comprising a mechanical support body, a rotating device, a main shaft, a cage and an auxiliary fixing device, wherein: one end of the main shaft is connected with the rotating device, and the other end is connected with the auxiliary fixing device. The fixing device is connected, the cage is fixedly sleeved on the main shaft, the rotating device and the auxiliary fixing device are fixedly installed on the upper end of the mechanical support main body, the rotating device includes a rotating indexer and a three-jaw chuck, and the end connected with the auxiliary fixing device on the main shaft is a support The supporting end is provided with a plurality of platform surfaces consistent with the number and angle of the pockets of the cage. The cage pocket machining device of the present invention realizes the fixation of the cage and the indexing of the number of pockets through the rotary indexer, the three-jaw chuck, the platform surface and the auxiliary fixing device, the structure is simple, and the control of the number of pockets can be accurately realized .

Description

A cage pocket machining device

technical field

The invention relates to the technical field of bearing processing, in particular to a cage pocket processing device.

Background technique

The cage is one of the main components in the rolling bearing, which is used to isolate the rolling elements and promote the rolling elements to carry the load in turn. , its manufacturing accuracy directly affects the bearing performance, so it is particularly important to be able to process the pockets to ensure the relative position of the pockets in the circumferential direction and the internal dimensions of the pockets. At present, most of the cage pockets are processed on five-axis machine tools, mainly including broaching and wire cutting; during broaching, the cage cannot overcome the cutting force generated by broaching, and it is easy to deform and cause pockets. The accuracy cannot be guaranteed; wire cutting can meet the machining accuracy, but its manufacturing cost is too high, the production cycle is long, and the production efficiency is affected; and when processing small batches of pockets, it is not suitable to use complex machine tools.

In view of the complexity of the existing pocket hole machining, domestic inventors have developed a cage pocket hole machining device, which makes the pocket hole machining relatively simple. The support sleeve is sleeved on the outer periphery to radially support the cage blank. This solution increases the processing cost to a certain extent, and the above-mentioned patent does not reflect how to control the accuracy of the circumferential spacing of the pockets. Since the existing cage pocket machining method is too complicated, a pocket machining tool that can meet the machining accuracy and save machining cost is required.

SUMMARY OF THE INVENTION

In order to solve the technical problems in the above background, the present invention provides a cage pocket machining device, which can complete the machining of pocket holes on a complex machine tool with a drilling machine. The device has the advantages of simple structure, automatic centering of circumferential pockets, Easy-to-replace feature to realize the machining of small batch cage pockets.

The present invention adopts the following technical solutions: a cage pocket machining device, comprising a mechanical support body, a rotating device, a main shaft, a cage and an auxiliary fixing device, wherein:

One end of the main shaft is connected with the rotating device, and the other end of the main shaft is connected with the auxiliary fixing device. The cage is fixedly sleeved on the main shaft and is located between the rotating device and the auxiliary fixing device. Both the rotating device and the auxiliary fixing device are fixedly installed on the main body of the mechanical support. upper end.

Further, the rotating device includes a rotating indexer and a three-jaw chuck, the rotating indexer is used to control the rotation angle of the main shaft, and the three-jaw chuck is used to fix the main shaft.

Further, the main shaft has a shaft shoulder, one end of the cage is abutted against the shaft shoulder, and the other end is abutted against a locking nut, and the locking nut is installed on the main shaft.

Further, an annular groove is provided at the position where the cage is installed on the main shaft, and the width of the annular groove is larger than the diameter of the cage pocket and smaller than the width of the cage.

Further, the end connected with the auxiliary fixing device on the main shaft is the supporting end, and the supporting end is provided with a plurality of platform surfaces consistent with the number and angle of the pockets of the cage, and a plurality of indicator grooves are arranged in the upper direction of the main shaft. They are arranged in a one-to-one correspondence, and the corresponding indicator grooves are coincident with the centerline of the platform surface.

Further, the auxiliary fixing device includes a support seat and a locking bolt, the support seat is provided with a positioning hole and a support hole, the axis of the support hole is perpendicular to the axis of the positioning hole, and the support end is inserted into the support hole and connected to the support seat, The locking bolt is abutted and fixed with the platform surface through the positioning hole.

Further, the auxiliary fixing device further includes a locking washer, and the locking washer is located between the locking bolt and the platform surface.

Further, a circular arc surface is provided between two adjacent platform surfaces, and the radius of the circular arc surface is the same as that of the support hole.

Further, a drill press connection base is also included, and the drill press connection base is fixedly connected to the lower end of the mechanical support body.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The cage pocket machining device of the present invention has a simple structure, the pocket hole machining can be realized by fixing the mechanical support body on the drilling machine, and the operation is convenient and the cost is saved.

(2) The support end of the cage pocket machining device of the present invention is provided with a plurality of platform surface structures consistent with the number and angle of the cage pockets. On the basis of ensuring the support and fixation of the main shaft and other components, the auxiliary fixing device The self-centering function can be realized by the locking bolts, which can effectively ensure the accuracy of the drilling position.

(3) The cage pocket machining device of the present invention realizes the fixing of the cage and the indexing of the number of pockets by rotating the indexer, the three-jaw chuck, the platform surface and the locking bolts on the auxiliary fixing device. The structure is simple and can be Accurately realize the control of the number of pockets.

Description of drawings

In order to describe the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the drawings that are required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the overall structure diagram of the cage pocket machining device of the present invention;

2 is a front view of the cage pocket machining device of the present invention;

Fig. 3 is the main shaft structure diagram of the cage pocket machining device of the present invention;

4 is a structural diagram of a rotating device of the cage pocket machining device of the present invention;

5 is a structural diagram of a support frame of the cage pocket machining device of the present invention;

Fig. 6 is an enlarged view of part a in Fig. 5;

Fig. 7 is an enlarged view of part b in Fig. 5;

Among them, 1-mechanical support body, 11-base plate, 111-first step surface, 112-second step surface, 12-fixed stopper, 13-fastening bolt, 2-rotation device, 21-rotation indexer, 22- Three-jaw chuck, 3-spindle, 31-shoulder, 32-circular groove, 33-platform surface, 34-indicating groove, 35-circular surface, 4-retainer, 5-auxiliary fixing device, 51-support Seat, 511-positioning hole, 512-support hole, 52-locking bolt, 53-locking washer, 6-locking nut, 7-drilling machine connection base.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1-7, the present invention provides a cage pocket machining device, including a mechanical support body 1, a rotating device 2, a main shaft 3, a cage 4 and an auxiliary fixing device 5, wherein: one end of the main shaft 3 is connected to the rotating The device 2 is connected, the other end of the main shaft 3 is connected with the auxiliary fixing device 5, the holder 4 is fixedly sleeved on the main shaft 3, and the holder 4 is located between the rotating device 2 and the auxiliary fixing device 5, and the rotating device 2 and the auxiliary fixing device 5 are both. It is fixedly installed on the upper end of the mechanical support body 1 . The mechanical support body 1 of the present invention is mainly used for the bearing and installation of other functional components, and the mechanical support body 1 can be any form of support; The machining angle, on the other hand, is used to lock the main shaft 3 so that the main shaft 3 does not move during the pocket machining process. The device has a simple structure, the pocket hole can be processed by fixing the mechanical support body 1 on the drilling machine, the operation is convenient, the assembly is easy, and the practicability is strong.

Specifically, the rotating device 2 of this embodiment includes a rotating indexer 21 and a three-jaw chuck 22 , the rotating indexer 21 is used to control the rotation angle of the main shaft 3 , and the three-jaw chuck 22 is used to fix the main shaft 3 , wherein the rotating indexer 21 is provided with There is a handle, and the rotating device 2 indirectly exerts a circumferential force on the main shaft 3 by rotating the handle on the indexer 21, thereby driving the cage 4 to rotate, and at the same time utilizes the rotatable scale ring and the indexing vernier ring on the rotating indexer 21 to achieve indexing. The rotating device 2 in this embodiment not only has a rotating function, but also has a locking function. The purpose of locking the main shaft 3 is achieved by the three-jaw chuck 22 . Specifically, one end of the main shaft 3 is placed into the three-jaw chuck 22 for positioning. In the hole, when the indexer 21 is rotated to rotate the main shaft 3 to the angle to be processed in the cage pocket, the three jaws are moved toward the center by rotating the wrench of the three-jaw chuck 22 to clamp the main shaft 3, thereby avoiding the need for machining. During the pocketing period, the main shaft 3 moves, which affects the machining accuracy of the pocketing. It can be known that the specific structures and usage methods of the rotary indexer 21 and the three-jaw chuck 22 belong to the prior art, and those skilled in the art can refer to the prior art to carry out design and operation.

Specifically, the main shaft 3 in this embodiment has a shaft shoulder 31 , one end of the cage 4 abuts against the shaft shoulder 31 , and the other end of the cage 4 abuts against a locking nut 6 , which is installed on the main shaft 3 , The shaft shoulder 31 and the locking nut 6 work together to fix the cage 4 on the main shaft 3, so as to prevent the cage 4 from moving left and right during the pocket machining process, which affects the machining accuracy of the pocket. In addition, in order to facilitate processing, a ring groove 32 is provided on the main shaft 3 where the cage 4 is installed, the diameter of the ring groove 32 is smaller than that of the main shaft 3, and the inner diameter of the cage 4 is the same as the diameter of the main shaft 3; The setting of 32 can prevent the tool from contacting the spindle 3 during the pocket machining process, so as to prevent the tool from damaging the spindle 3. In this embodiment, the width of the annular groove 32 needs to be larger than the diameter of the cage pocket and smaller than the width of the cage 4. When drilling holes on the cage 4, when the drill bit penetrates the cage 4, the cutting edge falls in the annular groove 32 without directly contacting the main shaft 3 made of metal material, which avoids the phenomenon of chipping, has high safety, and is applied. Greater flexibility in drilling position.

Specifically, the end of the main shaft 3 in this embodiment connected to the auxiliary fixing device 5 is the support end, and the support end is provided with a plurality of platform surfaces 33 with the same number and angle as the cage pockets, and the plurality of platform surfaces 33 are circumferentially arranged A plurality of indicator grooves 34 are arranged on the support end, and a plurality of indicator grooves 34 are circumferentially arranged on the main shaft 3 away from the support end. The setting of the indicator groove 34 can intuitively obtain the rotation angle of the cage 4 during the machining process. Every time the spindle 3 rotates a platform surface 33, the operator can intuitively see the corresponding rotation angle of the cage 4 according to the indication of the indicator groove 34. Thereby, the machining position of the cage pocket is obtained.

The cage pocket machining device of the present invention is provided with a plurality of platform surface structures on the support end of the main shaft, and on the basis of ensuring the support and fixation of the main shaft and other components, the automatic centering function can be realized with the auxiliary fixing device, and the function of automatic centering can be effectively guaranteed. The accuracy of the drilling position is improved.

Specifically, the auxiliary fixing device 5 in this embodiment includes a support seat 51 , a locking bolt 52 and a locking washer 53 . The support seat 51 is provided with a positioning hole 511 and a support hole 512 , and the axis of the support hole 512 and the positioning hole 511 The axis of the main shaft 3 is set vertically, the support end of the main shaft 3 is inserted into the support hole 512 and connected to the support base 51, the locking bolt 52 passes through the positioning hole 511 and is fixed in abutment with the platform surface 33, and the locking bolt 52 and the platform surface 33 are fixed. There is a locking washer 53, the tightened locking washer 53 and the platform surface 33 of the main shaft 3 are tightened, and the radial pressure between the two is greatly increased, thereby increasing the rotational friction. The force realizes the circumferential anti-rotation positioning of the main shaft 3 . The provision of the locking washer 53 can make the main shaft 3 more stably fit and fix with the locking bolt 52 , thereby enabling the cage 4 to maintain a stable working position during the pocket machining process.

It can be understood that when the main shaft 3 is not centered, the locking washer 53 is compacted by tightening the locking bolt 52. Under the action of the pressure, the locking washer 53 is in contact with the platform surface 33 of the supporting end of the main shaft 3. Make the main shaft 3 automatically correct the position, as the lower surface of the head of the locking bolt 52 is completely fitted with the circular table surface on the upper part of the support seat 51, the lower surface of the locking bolt screw is also completely fitted with the platform surface 33, and the locking is completed. At this time, the cage 4 is automatically centered during the locking process of the main shaft 3 .

Specifically, the support base 51 in this embodiment has a support function, the main shaft 3 is inserted into the support hole 512 to support and fix the main shaft 3 , and a circular arc surface is provided between the two adjacent platform surfaces 33 on the support end of the main shaft 3 35, and the radius of the arc surface 35 is the same as the radius of the support hole 512, which ensures that the support end of the main shaft 3 cooperates with the support hole 512 to play a supporting role.

Specifically, this embodiment further includes a drill press connection base 7 , and the drill press connection base 7 is fixedly connected to the lower end of the mechanical support body 1 . The mechanical support body 1 of this embodiment includes a bottom plate 11 , a fixing block 12 and a fastening bolt 13 , wherein the upper end of the bottom plate 11 is a plane structure for carrying and installing functional components for pocket machining, and the lower end of the bottom plate 11 is a step type structure, including a first stepped surface 111 and a second stepped surface 112, the first stepped surface 111 is clamped at one end of the drilling machine connection base 7, and the second stepped surface 112 is flush with the other end of the drilling machine connection base 7, and is fixed by fixing The baffle plate 12 is fixed, and the bottom plate 11 is provided with a through hole, and the bottom plate 11 , the fixed block 12 and the drilling machine connection base 7 are locked and fixed by tightening bolts 52 .

The cage pocket machining device of the present invention realizes the fixing of the cage 4 and the indexing of the number of pockets by rotating the indexer 21, the three-jaw chuck 22, the platform surface 33 and the locking bolts 52 on the auxiliary fixing device, and has a simple structure. And can accurately realize the control of the machining quantity and machining accuracy of pocket holes.

The working process of the present invention is as follows:

Set the cage 4 to be processed on the processing position on the main shaft 3, then fix the cage 4 on the main shaft 3 through the lock nut 6, and then place one end of the main shaft 3 in the rotating device 2, and the other end is placed in the support In the support hole 512 on the seat, the rotating device 2 is driven according to the position of the indication groove 34 on the main shaft 3 to determine the initial processing position of the pocket, and then the main shaft 3 is fixed and locked by the three-jaw chuck 22 and the locking bolt 52, and the pocket is carried out. Processing: After the initial pocket is processed, the three-jaw chuck 22 and the locking bolt 52 are released, and the processing position of the next pocket is determined by the rotating device 2, and the cycle is repeated until all the pockets are processed.

The present invention has been further described above with the help of specific embodiments, but it should be understood that the specific description herein should not be construed as a limitation on the spirit and scope of the present invention. Various modifications made in the embodiments all belong to the protection scope of the present invention.

Claims (9)

1. The utility model provides a cage pocket processingequipment which characterized in that, includes mechanical support main part, rotating device, main shaft, cage and supplementary fixing device, wherein:

one end of the main shaft is connected with the rotating device, and the other end of the main shaft is connected with the auxiliary fixing device; the retainer is fixedly sleeved on the main shaft and is positioned between the rotating device and the auxiliary fixing device, and the rotating device and the auxiliary fixing device are fixedly installed at the upper end of the mechanical support main body.

2. The cage pocket machining device as claimed in claim 1, wherein the rotating means includes a rotating indexer for controlling a rotation angle of the main spindle and a three-jaw chuck for fixing the main spindle.

3. The cage pocket machining device of claim 2, wherein the main shaft has a shoulder, one end of the cage abuts against the shoulder, and the other end abuts against a lock nut, the lock nut being mounted on the main shaft.

4. The cage pocket machining device of claim 3, wherein a circular groove is formed in a position on the main shaft where the cage is mounted, and a width of the circular groove is larger than a diameter of the cage pocket and smaller than a width of the cage.

5. The cage pocket machining device according to claim 4, wherein one end of the main shaft connected to the auxiliary fixing device is a support end, the support end is provided with a plurality of platform surfaces which are consistent with the cage pockets in number and angle, the main shaft is circumferentially provided with a plurality of indicating grooves, the indicating grooves and the platform surfaces are arranged in one-to-one correspondence, and the center lines of the corresponding indicating grooves and the platform surfaces coincide.

6. The cage pocket machining device according to claim 5, wherein the auxiliary fixing means includes a support base having a positioning hole and a support hole, the support hole having an axis perpendicular to an axis of the positioning hole, and a locking bolt inserted into the support hole to be connected to the support base, the locking bolt passing through the positioning hole to be fixed in abutment with the table surface.

7. The cage pocket machining device of claim 6, wherein the auxiliary fixture further comprises a lock washer, the lock washer being positioned between the lock bolt and the platform surface.

8. The cage pocket machining device according to claim 6, wherein an arc surface is provided between adjacent two of the platform surfaces, and a radius of the arc surface is the same as a radius of the support hole.

9. The cage pocket machining device of claim 1, further comprising a drill press connection base fixedly attached to a lower end of the machine support body.

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