CN220006874U

CN220006874U - Processing clamp and processing device for interlocking block

Info

Publication number: CN220006874U
Application number: CN202321353740.4U
Authority: CN
Inventors: 夏敏; 石小荣; 陈绍亮; 张艳伟; 钱夏晨
Original assignee: Jiangsu Zhizao New Material Co ltd
Current assignee: Jiangsu Zhizao New Material Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-11-14
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to the field of machining, in particular to a machining fixture and a machining device for an interlocking block, wherein the machining fixture comprises a radial positioning component, a circumferential positioning component and an axial positioning component, the outer shaft wall of a radial positioning shaft is expanded outwards to position the interlocking block with the circumferential positioning in the radial direction, the circumferential positioning component comprises a positioning pin and a telescopic propping piece which are fixedly arranged, the positioning pin is propped by a first circumferential end part of a protrusion on the interlocking block, the propping piece extends to a second circumferential end part of the protrusion on the interlocking block, the interlocking block is pushed to rotate, the first circumferential end part of the protrusion on the interlocking block is pressed on the positioning pin to complete the circumferential positioning, and the axial positioning component comprises an end face fixture clamped on the axial end face of the interlocking block to position the interlocking block in the axial direction. The technical problems of inaccurate finished product precision, low automation degree and high cost caused by the fact that two processes are needed for machining the interlocking block and two blank pieces are installed and positioned are solved.

Description

Processing clamp and processing device for interlocking block

Technical Field

The utility model relates to the field of machining, in particular to a machining clamp and a machining device for an interlocking block.

Background

The interlocking block is an important part in the gearbox, the interlocking block comprises a main body, the main body is a thin-wall cylinder with a through hole, an open slot is axially formed in the main body, two symmetrical protrusions are formed in the peripheral wall of the main body, the two protrusions are symmetrically arranged along the open slot, a U-shaped positioning transverse slot is formed in one protrusion, a process boss is required to be arranged in the peripheral wall of the main body in the forming process, one end of the process boss extends to the end of the main body, and the other end of the process boss extends to the protrusion.

In the concrete processing, the blank is a thin-wall cylindrical main body with a through hole, and the two protrusions are processed, namely, an open slot, a process boss and an open slot are required to be processed on the blank. However, on the one hand, there are poor machining precision, such as inaccurate positioning of the base of the blank, such as poor fit of the positioning shaft for penetrating the through hole of the blank; on the other hand, when the open slot is machined, the thin-wall cylinder of the blank piece is broken, the radial and circumferential bearing forces are weakened to deform, for example, when the open slot is machined, the inner hole of the blank piece and the machined open slot deform, in order to avoid the deformation of the size of the open slot, the existing machining adopts two working procedures, namely, the first working procedure is used for machining a process boss and a U-shaped positioning transverse slot, the second working procedure is used for machining the open slot, two equipment or two clamps are needed, namely, the two working procedures are completed, namely, the blank piece must be taken down and reinstalled for positioning by manual assistance, the degree of automation is low, time and labor are wasted, the cost of a production party is increased, and meanwhile, the dimensional accuracy of a finished product is difficult to control because of two positioning.

Disclosure of Invention

In order to solve the technical problems of inaccurate finished product precision, low automation degree and high cost caused by the fact that two working procedures are needed for machining the interlocking block through twice blank installation and positioning in the prior art, the utility model provides a machining clamp and a machining device for the interlocking block, and the technical problems are solved.

The technical scheme adopted for solving the technical problems is as follows:

in one aspect, the present utility model provides a machining fixture for an interlocking block, including: a radial positioning assembly including a fixedly configured radial positioning shaft whose outer shaft wall expands outwardly to position the interlocking pieces that have completed circumferential positioning in a radial direction; the circumferential positioning assembly comprises a positioning pin and a telescopic propping piece, wherein the positioning pin is fixedly configured, the positioning pin is propped against the first circumferential end part of the protrusion on the interlocking block, the propping piece extends to the second circumferential end part of the protrusion on the interlocking block, and the interlocking block is pushed to rotate and the first circumferential end part of the protrusion on the interlocking block is pressed on the positioning pin to complete circumferential positioning; an axial positioning assembly including an end clamp clamped at an axial end of the interlock block to position the interlock block in an axial direction.

The utility model discloses a processing clamp for interlocking blocks, which is characterized in that an interlocking block is sleeved on a radial positioning shaft which is not externally expanded on the outer shaft wall, the interlocking block can rotate on the radial positioning shaft, at the moment, a first circumferential end part of a bulge on the interlocking block is abutted against a positioning pin, then a jacking piece stretches out to the first circumferential end part of the bulge on the interlocking block, the interlocking block is pushed to rotate, the first circumferential end part of the bulge on the interlocking block is pressed on the positioning pin to complete circumferential positioning, after the circumferential positioning is completed, the outer shaft wall of the radial positioning shaft is externally expanded to complete radial positioning, finally, an end face clamp is clamped on the axial end face of the interlocking block to complete the axial positioning of the interlocking block, after the radial, axial and axial three are all positioned, a process boss and a U-shaped positioning transverse groove are processed, and after the process boss and the U-shaped positioning transverse groove are processed, in order to prevent the main body of the interlocking block from deforming in the subsequent processing process of an opening groove, the jacking piece is retracted firstly and then does not act on a second circumferential end part of the bulge, and the outer shaft wall of the radial positioning shaft is simultaneously controlled to clamp the outer shaft to be externally expanded to complete the axial positioning, and the axial positioning of the interlocking block is not axially expanded, and the axial positioning clamp is not completed because the axial positioning of the interlocking block is completely clamped. In summary, on the one hand, because the circumferential positioning is finished firstly, and the outer shaft wall of the radial positioning shaft with the outer shaft wall capable of being expanded is attached to the inner wall of the through hole of the interlocking block, the problem that transition fit and interference fit are needed to be paid attention to when the positioning shaft is matched with the interlocking block in the prior art is solved, and the technical problem that the machining precision of the interlocking block in the prior art is poor when the interlocking block is machined is solved; on the other hand, when processing the open slot, the main part of interlocking piece is only axial tip atress, the radial and the circumference of main part are not atress to avoided the main part deformation's of interlocking piece possible, solved the interlocking piece among the prior art can appear the technical problem that the main part warp when processing, and whole course of working is accomplished on a processing anchor clamps, avoided the manual work to assist to accomplish the step of taking off the blank and reinstalling the location, promoted the degree of automation of processing, reduced process time, reduced manufacturing cost, the finished product precision inaccuracy that the machining of interlocking piece among the prior art brought through twice blank installation location of need be solved, degree of automation is low, technical problem with high costs.

Further, a yielding groove is formed in the outer shaft wall of the radial positioning shaft, and the yielding groove corresponds to the opening groove of the interlocking block in position.

Further, the radial positioning assembly is an expandable mandrel.

Further, the locating pin is a cylinder locating pin which is transversely arranged.

Further, the jacking piece is driven by an air cylinder or an oil cylinder.

Further, the clamping blocks of the end face clamp rotate first and then are clamped on the end faces of the interlocking blocks.

The utility model further provides a processing device, which comprises a plurality of processing clamps of the interlocking blocks.

Based on the technical scheme, the utility model has the following technical effects:

Drawings

FIG. 1 is a schematic view of the overall structure of interlocking blocks;

FIG. 2 is a schematic view of another view of the interlock block;

FIG. 3 is a schematic view of a radial positioning shaft of the present utility model;

FIG. 4 is a schematic view of the overall structure of the processing apparatus of the present utility model;

FIG. 5 is an enlarged view of a portion A of FIG. 4;

FIG. 6 is a schematic view of the overall structure of the processing clamp of the interlocking block of the present utility model;

fig. 7 is a partial enlarged view of a portion B in fig. 6.

Wherein: the device comprises an a-interlocking block, an a 1-main body, an a 2-open slot, an a 3-bulge, an a 4-U-shaped positioning transverse slot and an a 5-process boss; 1-radial positioning shaft, 11-outer shaft wall and 12-abdication groove; 2-locating pins; 3-a puller; 4-end face clamp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth words do not indicate or imply that the processing device or element referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 1-2, the interlocking block a is an important part in a gearbox, the interlocking block a comprises a main body a1, the main body a1 is in a thin-walled cylinder with a through hole, an open slot a2 is axially arranged on the main body a1, two symmetrical protrusions a3 are arranged on the peripheral wall of the main body a1, the two protrusions a3 are symmetrically arranged along the open slot a2, a U-shaped positioning transverse slot a4 is arranged on one protrusion a3, a process boss a5 is required to be arranged on the peripheral wall of the main body a1 in the forming process, one end of the process boss a5 extends to the end of the main body a1, and the other end of the process boss a5 extends to the protrusion a3.

As shown in fig. 2 to 7, the machining fixture for interlocking blocks provided by the utility model comprises a radial positioning assembly, a circumferential positioning assembly and an axial positioning assembly, wherein the radial positioning assembly comprises a radial positioning shaft 1 which is fixedly arranged, an outer shaft wall 11 of the radial positioning shaft 1 is expanded outwards to position the interlocking block a which is completely positioned circumferentially in the radial direction, the circumferential positioning assembly comprises a positioning pin 2 which is fixedly arranged and a telescopic propping piece 3, the circumferential first end part of a protrusion a3 on the interlocking block a is propped against the positioning pin 2 before the interlocking block a is sleeved on the radial positioning shaft 1 and the outer shaft wall 11 of the radial positioning shaft 1 is expanded outwards, the propping piece 3 extends to the circumferential second end part of the protrusion a3 on the interlocking block a, the interlocking block a is pushed to rotate, the circumferential first end part of the protrusion a3 on the interlocking block a is pressed on the positioning pin 2 to complete circumferential positioning, and the axial positioning assembly comprises an end fixture 4 which is clamped on the axial end surface of the interlocking block a to position the interlocking block a in the axial direction.

According to the processing clamp for the interlocking block, the interlocking block a is sleeved on the radial positioning shaft 1 which is not expanded outwards at the outer shaft wall 11, the interlocking block a can rotate on the radial positioning shaft 1, at the moment, the first circumferential end part of the protrusion a3 on the interlocking block a is abutted against the positioning pin 2, then the jacking piece 3 extends to the first circumferential end part of the protrusion a3 on the interlocking block a, the interlocking block a is pushed to rotate and enable the first circumferential end part of the protrusion a3 on the interlocking block a to be pressed on the positioning pin 2 so as to complete circumferential positioning, after the circumferential positioning is completed, the outer shaft wall 11 of the radial positioning shaft 1 expands outwards to complete radial positioning, finally the end face clamp 4 is clamped on the axial end face of the interlocking block a so as to complete axial positioning of the interlocking block a, after the radial, axial and axial three are all positioned, the processing boss a5 and the U-shaped positioning transverse groove a4 are processed firstly, in order to prevent the main body a1 of the interlocking block a from generating axial positioning in the subsequent opening groove a2, the first axial end part 3 is not contracted in the axial direction of the jacking piece a3, and the axial positioning end face of the interlocking block a is not deformed at the moment, and the axial positioning of the end face of the interlocking block a is not deformed at the end face is not controlled, and the axial positioning of the interlocking block a is not expanded at the end part is not deformed, and the axial positioning of the axial positioning end part is not completed, and the axial positioning of the interlocking block a is not deformed, and the axial end part is deformed at the end 3 is not deformed, and the end part is pressed in the axial positioning 3, and the axial end part is not is deformed, and the end is pressed. In summary, on the one hand, because the circumferential positioning is completed first, and the outer shaft wall 11 of the radially positioning shaft 1 with the outer shaft wall 11 capable of being expanded is attached to the inner wall of the through hole of the interlocking block a, the problems that in the prior art, transition fit and interference fit are needed to be paid attention to when the positioning shaft is matched with the interlocking block a are solved, and therefore, the technical problem that in the prior art, the interlocking block a is poor in machining precision during machining is solved; on the other hand, when the open slot a2 is machined, the main body a1 of the interlocking block a is stressed only at the axial end, and the radial direction and the circumferential direction of the main body a1 are not stressed, so that the possibility of deformation of the main body a1 of the interlocking block a is avoided, the technical problem that the main body a1 is deformed when the interlocking block a in the prior art is machined is solved, the whole machining process is finished on a machining fixture, the step of manually assisting in taking down and reinstalling and positioning a blank is avoided, the automation degree of machining is improved, the machining time is reduced, the production cost is reduced, and the technical problems of inaccurate finished product, low automation degree and high cost caused by twice blank installation and positioning during machining of the interlocking block a in the prior art are solved.

In the preferred embodiment of the present utility model, the outer shaft wall 11 of the radial positioning shaft 1 is provided with the relief groove 12, the relief groove 12 corresponds to the position of the opening groove a2 of the interlocking block a, and the relief groove 12 is arranged to facilitate the feeding and retracting during processing.

In a preferred embodiment of the utility model, the radial positioning assembly is an expandable mandrel, in particular, alternatively, a hydraulic expandable mandrel.

In the preferential implementation of the utility model, the positioning pin 2 is a horizontal cylinder positioning pin 2, and the interlocking block a is abutted against the outer wall of the cylinder positioning pin 2, so that the operation is convenient.

In one embodiment of the utility model, the jacking members 3 are driven by a cylinder or ram, preferably a cylinder in this embodiment, to damage the interlocking blocks a with too much pressure.

In the preferred embodiment of the utility model, the clamping blocks of the end face clamp 4 are rotated and then clamped to the end faces of the interlocking blocks a.

As shown in fig. 4-7, the present utility model further provides a machining device, including a plurality of machining jigs for interlocking blocks described above.

In the preferred embodiment of the utility model, the machining device is an X-axis, Y-axis, Z-axis and B-axis four-axis machining device, and the machining fixtures of the interlocking blocks are arranged in a straight line.

It should be understood that the above-described specific embodiments are only for explaining the present utility model and are not intended to limit the present utility model. Obvious variations or modifications which extend from the spirit of the present utility model are within the scope of the present utility model.

Claims

1. A machining fixture for interlocking blocks, comprising:

a radial positioning assembly comprising a fixedly configured radial positioning shaft (1), an outer shaft wall (11) of the radial positioning shaft (1) being flared to position interlocking blocks (a) in a radial direction for which circumferential positioning has been completed;

the circumferential positioning assembly comprises a positioning pin (2) and a telescopic propping piece (3) which are fixedly arranged, wherein the positioning pin (2) is propped against the circumferential first end part of the protrusion (a 3) on the interlocking block (a), the propping piece (3) extends to the circumferential second end part of the protrusion (a 3) on the interlocking block (a), and the interlocking block (a) is pushed to rotate and the circumferential first end part of the protrusion (a 3) on the interlocking block (a) is pressed on the positioning pin (2) to complete circumferential positioning;

an axial positioning assembly comprising an end face clamp (4) clamped at an axial end face of the interlock block (a) to position the interlock block (a) in an axial direction.

2. The processing clamp of the interlocking block according to claim 1, wherein a yielding groove (12) is formed in an outer shaft wall (11) of the radial positioning shaft (1), and the yielding groove (12) corresponds to an opening groove (a 2) of the interlocking block (a) in position.

3. The interlocking block machining fixture of claim 1, wherein the radial positioning assembly is an expandable mandrel.

4. The machining fixture of the interlocking block according to claim 1, characterized in that the positioning pin (2) is a horizontally arranged cylinder positioning pin (2).

5. The machining fixture of the interlocking block according to claim 1, characterized in that the tightening member (3) is driven by a cylinder or an oil cylinder.

6. The machining fixture for the interlocking block according to claim 1, wherein the clamping block of the end face fixture (4) is rotated and then clamped on the end face of the interlocking block (a).

7. A machining device comprising a plurality of machining jigs of the interlocking block according to any one of claims 1 to 6.