Snap spring machining device

Abstract

The utility model provides a clamp spring processing device, which belongs to the technical field of clamp spring processing, and comprises a working table, two groups of first slide rails, two groups of second slide rails, two groups of arc-shaped slide plates, two groups of top blocks and a large top block, the two groups of first slide rails are arranged at the upper end of the working table in parallel, and the two groups of second slide rails are respectively connected with the two groups of first slide rails in a sliding manner; the two arc-shaped sliding plates are slidably connected to the two second sliding rails correspondingly. The two ejector blocks are vertically arranged, and the bottom ends of the ejector blocks are slidably connected to the two arc-shaped sliding plates correspondingly. The large ejector block is arranged at the upper end of the workbench, and the large ejector block and the two sets of ejector blocks are arranged in a triangular shape and combined to define a space suitable for oppositely clamping and fixing the clamp spring. And the clamping spring is fixed and the position of the clamping spring is adjusted through mutual matched sliding of the two sets of second sliding rails, the two sets of arc-shaped sliding plates and the two sets of jacking blocks. The clamp spring machining device has the advantages that the position of the clamp spring can be adjusted after the clamp spring is fixed, the grinding size of the clamp spring can meet the design requirement, and machining errors are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of snap ring processing technology, and more specifically, it relates to a snap ring processing device. Background Technology

[0002] Snap rings are metal rings used to fit into the piston grooves or clutch grooves of automobiles, and are widely used in various power machinery. In recent years, higher requirements have been placed on the performance and lifespan of snap rings. Due to the increasing mechanical and thermal stresses they bear, snap rings experience more severe wear. During the machining of snap rings, the inner surface is typically reciprocated through grinding to ensure surface roughness and improve initial break-in performance. The requirements for snap rings are now more precise. Because snap rings have a C-shaped structure, the C-shaped snap ring must be closed into a circle before machining the inner diameter. This is often done using two segmented jigs to clamp the snap rings one by one. This clamping method is often inaccurate, and once the snap ring is fixed, its position cannot be adjusted. This affects the dimensions of the ground snap ring during machining and may even cause the snap ring to jam. Grinding is also relatively inefficient and unsuitable for mass production. Utility Model Content

[0003] The purpose of this utility model is to provide a snap ring processing device, which aims to solve the technical problem in the prior art that the snap ring cannot be adjusted after the jig used to fix the snap ring when grinding the inner diameter, resulting in errors between the grinding dimensions of the snap ring and the design dimensions.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a snap ring processing device, comprising:

[0005] The worktable has a mounting base at the bottom for supporting it, and a boring and milling mechanism for grinding the inner surface of the snap ring is located above the worktable.

[0006] Two sets of first slide rails are arranged side by side on the upper part of the workbench and spaced apart.

[0007] Two sets of second slide rails are slidably connected to two sets of first slide rails respectively. The length directions of the two sets of second slide rails are parallel or coincident and perpendicular to the length direction of the first slide rails.

[0008] Two sets of arc-shaped sliding plates are slidably connected to two sets of second slide rails respectively, and the arc shape of the arc-shaped sliding plate is matched with the arc shape of the retaining spring;

[0009] Two sets of top blocks are vertically arranged and their bottom ends are slidably connected to the two sets of arc-shaped sliding plates, respectively;

[0010] A large top block is provided on the upper part of the workbench. The large top block and the two sets of top blocks are arranged in a triangle and combined to form a space suitable for clamping and fixing the snap ring.

[0011] The two sets of second slide rails, the two sets of arc-shaped slide plates, and the two sets of top blocks are used to fix the snap ring and adjust its position by sliding them together.

[0012] In one possible implementation, both sets of the top blocks and the large top block are connected to anti-slip pads on the inner sidewalls near the retaining ring, and the anti-slip pads abut against the outer sidewall of the retaining ring and are used for anti-slip.

[0013] In one possible implementation, the upper end of the worktable is connected to an arc-shaped slide rail, the position of which is adjustable on the worktable. The bottom end of the large top block is slidably connected to the arc-shaped slide rail, the arc shape of which matches the arc shape of the retaining spring. The large top block can adjust the clamping and fixing position of the retaining spring along the arc-shaped slide rail.

[0014] In one possible implementation, the upper end of the worktable is provided with a plurality of pads, which are spaced apart and all located at the lower end of the retaining spring, and the pads are used to support the retaining spring.

[0015] In one possible implementation, both the second slide rail side and the arc-shaped slide plate side are provided with through holes, and a set screw is inserted into the through hole. The set screw is used to abut and lock the arc-shaped slide plate or the top block.

[0016] In one possible implementation, a grinding assembly is detachably connected to the upper end of the worktable. The grinding assembly is used to grind the inner circular surface of the snap ring, and the grinding assembly operates alternately with the boring and milling mechanism.

[0017] In one possible implementation, the grinding assembly includes:

[0018] A support frame is attached to the upper part of the workbench at its bottom, and the height of the support frame is adjustable.

[0019] A robotic arm is connected to the support frame, the robotic arm having a movable gripping end that can move in multiple directions and can clamp.

[0020] A driver is connected to the movable gripping end, and the robotic arm is used to adjust the position of the driver;

[0021] A grinding tool is connected to the power output end of the driver. The driver is used to drive the grinding tool to rotate so that the grinding tool performs grinding operations along the inner circular surface of the retaining ring.

[0022] In one possible implementation, a controller is connected to the side of the support frame, and both the robotic arm and the actuator are electrically connected to the controller, which has a control module adapted to control the operation of the robotic arm and the actuator respectively.

[0023] In one possible implementation, a receiving cavity is provided at the center of the upper end of the card holder, and the upper end of the card holder is detachably connected to the bottom of the worktable near its edge. A groove is provided at the upper end of the worktable, and the bottom of the groove passes through the receiving cavity. Debris generated during the processing of the card spring falls into the groove, and the debris located in the groove falls into the receiving cavity by its own weight.

[0024] In one possible implementation, the groove is shaped like an inverted frustum and is positioned to avoid the first slide rail.

[0025] The beneficial effects of the snap ring processing device provided by this utility model are as follows: Compared with the prior art, the snap ring processing device of this utility model includes a worktable, two sets of first slide rails, two sets of second slide rails, two sets of arc-shaped sliding plates, two sets of top blocks and a large top block. A retaining seat is provided at the bottom of the worktable to support the worktable. A boring and milling mechanism for grinding the inner circular surface of the snap ring is located above the worktable. The two sets of first slide rails are arranged side by side at the upper part of the worktable and spaced apart. The two sets of second slide rails are slidably connected to the two sets of first slide rails respectively. The length directions of the two sets of second slide rails are parallel or coincident and perpendicular to the length direction of the first slide rails. The two sets of arc-shaped sliding plates are slidably connected to the two sets of second slide rails respectively. The arc shape and the arc shape of the retaining ring are matched and set together; two sets of top blocks are set vertically and their bottom ends are slidably connected to two sets of arc-shaped sliding plates; the large top block is set at the upper end of the worktable, and the large top block and the two sets of top blocks are arranged in a triangle and combined to form a space suitable for clamping and fixing the retaining ring; wherein, the retaining ring is fixed and its position is adjusted by the mutual sliding of the two sets of second slide rails, the two sets of arc-shaped sliding plates and the two sets of top blocks, which solves the technical problem that the retaining ring position cannot be adjusted after the jig used to grind the inner diameter of the retaining ring, resulting in errors between the dimensions of the retaining ring grinding process and the design dimensions. It has the technical effect of being able to adjust the position of the retaining ring after fixing it, so that the dimensions of the retaining ring grinding meet the design requirements and reduce the processing error. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1A schematic diagram of a snap ring processing device provided in an embodiment of this utility model;

[0028] Figure 2 A schematic diagram of the structure of a snap ring processing device provided in this embodiment of the present utility model, comprising two sets of first slide rails, two sets of second slide rails, two sets of arc-shaped sliding plates, two sets of top blocks, and a large top block;

[0029] Figure 3 A cross-sectional view of the worktable structure of a snap ring processing device provided in an embodiment of this utility model;

[0030] Figure 4 This is a schematic diagram of a snap ring structure in the prior art.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Worktable; 2. First slide rail; 3. Second slide rail; 4. Arc-shaped slide plate; 5. Top block; 6. Large top block; 7. Card holder; 71. Receiving cavity; 8. Snap ring; 9. Anti-slip pad; 10. Arc-shaped slide rail; 11. Pad block; 12. Set screw; 13. Grinding assembly; 131. Support frame; 132. Robotic arm; 133. Driver; 134. Grinding tool; 135. Controller; 14. Groove; 15. Traveling wheel. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] Please refer to the following: Figures 1 to 4The present invention provides a circlip processing device. The circlip processing device includes a worktable 1, two sets of first slide rails 2, two sets of second slide rails 3, two sets of arc-shaped sliding plates 4, two sets of top blocks 5, and a large top block 6. A retaining seat 7 is provided at the bottom of the worktable 1 to support it. A boring and milling mechanism (existing technology, not shown in the figure) for grinding the inner surface of the circlip 8 is located above the worktable 1. The two sets of first slide rails 2 are arranged side-by-side at the upper end of the worktable 1 and spaced apart. The two sets of second slide rails 3 are slidably connected to the two sets of first slide rails 2, and the length directions of the two sets of second slide rails 3 are parallel or overlapping. The two sets of curved slide plates 4 are slidably connected to the two sets of second slide plates 3 respectively, and the arc of the curved slide plate 4 matches the arc of the retaining spring 8. The two sets of top blocks 5 are vertically arranged and their bottom ends are slidably connected to the two sets of curved slide plates 4 respectively. The large top block 6 is located at the upper end of the worktable 1, and the large top block 6 and the two sets of top blocks 5 are arranged in a triangle and combined to form a space suitable for clamping and fixing the retaining spring 8. The two sets of second slide plates 3, the two sets of curved slide plates 4 and the two sets of top blocks 5 are slidably connected to the two sets of curved slide plates 4 respectively to fix the retaining spring 8 and adjust the position of the retaining spring 8.

[0035] This utility model provides a snap ring processing device. Compared with the prior art, by setting two sets of first slide rails 2, two sets of second slide rails 3, two sets of arc-shaped slide plates 4, two top blocks 5, and a large top block 6, the device can adjust the clamping and fixing position of the snap ring 8 in multiple directions through mutual cooperation. It can not only fix the snap ring, but also adjust the position of the snap ring 8 after fixing, which facilitates grinding and improves the processing accuracy and quality. It solves the technical problem that when grinding the inner diameter of the snap ring 8, the jig used to fix the snap ring 8 cannot adjust the position of the snap ring 8, resulting in errors between the grinding dimensions of the snap ring 8 and the design dimensions. It has the technical effect of being able to adjust the position of the snap ring 8 after fixing it, so that the grinding dimensions of the snap ring 8 meet the design requirements and reduce processing errors.

[0036] To achieve anti-slip properties for the retaining ring 8, in some embodiments, please refer to... Figures 1 to 4 Both sets of top blocks 5 and the large top block 6 have anti-slip pads 9 attached to their inner walls near the retaining spring 8. The anti-slip pads 9 abut against the outer wall of the retaining spring 8 and provide anti-slip protection. The anti-slip pads 9 can be adhesively attached to the inner walls of the top blocks 5 and the large top block 6, and their contact with the retaining spring 8 enhances the anti-slip effect. After a period of use, the anti-slip pads 9 can be removed and replaced with new ones.

[0037] Since the retaining ring 8 is generally arc-shaped, in order to use retaining rings 8 of different diameters and specifications for clamping and fixing, in some embodiments, please refer to... Figures 1 to 4The upper end of the worktable 1 is connected to an arc-shaped slide rail 10. The position of the arc-shaped slide rail 10 on the worktable 1 is adjustable. The bottom end of the large top block 6 is slidably connected to the arc-shaped slide rail 10. The arc shape of the arc-shaped slide rail 10 matches the arc shape of the retaining spring 8. The large top block 6 can adjust the clamping and fixing position of the retaining spring 8 along the arc-shaped slide rail 10. By placing the arc-shaped slide rail 10 on the lower outer side of the retaining spring 8, the position of the large top block 6 can be adjusted, thereby allowing it to fit tightly against the outer circumferential wall of the retaining spring 8 and enhancing the clamping and fixing effect. When the position of the arc-shaped slide rail 10 does not meet the usage requirements, it can be moved to a different position and then locked onto the worktable 1. Fasteners (existing technology, not shown in the figure) are inserted through the arc-shaped slide rail 10. The fasteners can abut or connect with the worktable 1, that is, the arc-shaped slide rail 10 can be fixed onto the worktable 1 by using the fasteners. When it is necessary to adjust the position of the arc-shaped slide rail 10, the fastener can be operated and moved away from the worktable 1 to release the limit on the arc-shaped slide rail 10.

[0038] To prevent the retaining ring 8 from moving vertically downwards during manufacturing, in some embodiments, please refer to [reference needed]. Figures 1 to 4 The workbench 1 has multiple pads 11 on its upper end. These pads 11 are spaced apart and located below the retaining spring 8, serving to support the retaining spring 8. In this embodiment, two pads 11 are used, placed on the left and right sides of the lower end of the retaining spring 8, which can support the retaining spring 8 and prevent it from moving. Of course, the number and height of the pads 11 can be reasonably selected according to the actual situation.

[0039] To limit the movement of the curved sliding plate 4 and the top block 5, in some embodiments, please refer to... Figures 1 to 4 Both the second slide rail 3 and the curved slide plate 4 have through holes on their sides, with a set screw 12 inserted through each hole. The set screw 12 is used to abut and lock the curved slide plate 4 or the top block 5. By screwing the set screw 12, its inner end can abut against the curved slide plate 4 or the top block 5, thereby achieving a limiting effect. The set screw 12 on the curved slide plate 4 can limit the top block 5, and the set screw 12 on the second slide rail 3 can limit the curved slide plate 4. Multiple through holes are provided, evenly spaced along the length of the second slide rail 3 and the arc of the curved slide plate 4. When the curved slide plate 4 or the top block 5 slides, the corresponding through hole and set screw 12 can be selected to achieve the limiting effect.

[0040] To improve the grinding quality of the inner surface of the retaining ring 8, in some embodiments, please refer to... Figures 1 to 4A grinding assembly 13 is detachably connected to the upper end of the worktable 1. The grinding assembly 13 is used to grind the inner circular surface of the snap ring 8. The grinding assembly 13 can operate alternately with the boring and milling mechanism. The boring and milling mechanism in this utility model is existing technology. It is used to perform boring, milling, and grinding processing on the inner circular surface of the snap ring 8. When its processing accuracy, processing quality, or processing position cannot meet the processing requirements, the grinding assembly 13 can be used for processing.

[0041] In some embodiments, please refer to Figures 1 to 4 The grinding assembly 13 includes a support frame 131, a robotic arm 132, a driver 133, and a grinding tool 134. The bottom of the support frame 131 is connected to the upper end of the worktable 1, and the height of the support frame 131 is adjustable. The robotic arm 132 is connected to the support frame 131 and has a movable clamping end that can move in multiple directions and hold objects. The driver 133 is connected to the movable clamping end, and the robotic arm 132 is used to adjust the position of the driver 133. The grinding tool 134 is connected to the power output end of the driver 133, and the driver 133 is used to drive the grinding tool 134 to rotate, so that the grinding tool 134 performs grinding operations along the inner circular surface of the retaining ring 8. The support frame 131 provides support. The robotic arm 132 is existing technology and can adjust the processing position of the grinding tool 134, thereby enabling grinding operations along the inner circular surface of the retaining ring 8. The driver 133 is an existing technology, such as a motor, which can drive the rotation of the grinding tool 134, thereby enabling the grinding of the retaining ring 8. The movable gripping end of the robotic arm 132 can move in multiple directions and can clamp the actuator 133. The robotic arm 132 is a six-degree-of-freedom manipulator that can move the grinding tool 134 in multiple directions. The grinding tool 134 can use existing products and can perform grinding on the snap ring 8.

[0042] In some embodiments, please refer to Figures 1 to 4 A controller 135 is connected to the side of the support frame 131. The robotic arm 132 and the driver 133 are both electrically connected to the controller 135. The controller 135 has control modules suitable for controlling the operation of the robotic arm 132 and the driver 133 respectively. The controller 135 includes a PLC controller, multiple control circuits, multiple control modules, etc., and can realize the control of the robotic arm 132 and the driver 133, thereby enabling the grinding assembly 13 to realize automatic grinding operations. The path of the grinding tool 134 can be preset on the controller 135. After being set, the grinding tool 134 can move along the path and move during grinding, thereby realizing the grinding of the retaining ring.

[0043] In order to collect the debris and other materials generated after grinding, in some embodiments, please refer to Figures 1 to 4A receiving cavity 71 is provided at the center of the upper end of the clasp 7. The upper end of the clasp 7 is detachably connected to the bottom of the worktable 1 near its edge. A groove 14 is provided at the upper end of the worktable 1, and the bottom of the groove 14 extends through the receiving cavity 71. The debris generated by the retaining spring 8 during processing falls into the groove 14 and falls into the receiving cavity 71 by its own weight. The groove 14 extends through the thickness direction of the worktable 1, with a larger opening at the upper end and a smaller opening at the lower end, which can collect the debris generated by the retaining spring 8 during grinding. The debris leaks out from the lower end of the groove 14 into the receiving cavity 71. After processing is completed, the clasp 7 can be removed from the worktable 1, and the debris in the receiving cavity 71 can be emptied. The groove 14 is shaped like an inverted frustum and is positioned to avoid the first slide rail 2. The workbench 1 has a rectangular plate structure and multiple casters 15 or omnidirectional wheels at the bottom. The height of the multiple casters 15 is greater than the height of the card seat 7. The casters 15 can support the movement of the workbench 1. The groove 14 is generally set in the center of the workbench 1, while the first slide rail 2 is located on the side of the groove 14. The two do not affect each other.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamp spring machining apparatus characterized by comprising: The utility model relates to a workbench for supporting the workbench, and a boring and milling mechanism for grinding the inner circular surface of the snap spring is arranged above the workbench. Two groups of first sliding rails are arranged in parallel on the upper end of the workbench and are spaced apart. Two groups of second sliding rails are respectively connected to the two groups of first sliding rails, and the length directions of the two groups of second sliding rails are parallel or coincident and are perpendicular to the length directions of the first sliding rails. Two groups of arc-shaped sliding plates are respectively connected to the two groups of second sliding rails, and the arc shape of the arc-shaped sliding plates matches the arc shape of the snap spring. Two groups of top blocks are arranged vertically and have their bottom ends respectively connected to the two groups of arc-shaped sliding plates. A large top block is arranged on the upper end of the workbench, and the large top block and the two groups of top blocks are arranged in a triangular shape and combine to form a space suitable for clamping and fixing the snap spring. The two groups of top blocks and the large top block close to the inner side wall of the snap spring are connected with anti-skid pads, which abut against the outer side wall of the snap spring and are used for anti-skid. The upper end of the workbench is connected with an arc-shaped arc-shaped sliding rail, the position of the arc-shaped sliding rail on the workbench can be adjusted, the bottom end of the large top block is connected with the arc-shaped sliding rail, the arc shape of the arc-shaped sliding rail matches the arc shape of the snap spring, and the large top block can adjust the clamping and fixing position of the snap spring along the arc-shaped sliding rail.

2. A device for machining a clasp spring as claimed in claim 1, characterized in that The upper end of the workbench is provided with a plurality of spacers, and the spacers are spaced apart and located below the lower end of the snap spring, and the spacers are used for supporting the snap spring.

3. The device of claim 1, wherein the device further comprises a spring retainer. The side portions of the second sliding rails and the side portions of the arc-shaped sliding plates are provided with through holes, a jackscrew is arranged in the through holes, and the jackscrew is used for abutting and locking the arc-shaped sliding plates or the top blocks.

4. The device of claim 1 wherein, A receiving cavity is arranged at the central position of the upper end of the holder, the upper end of the holder close to the end edge position is detachably connected with the bottom of the workbench, a groove is arranged at the upper end of the workbench, the bottom of the groove penetrates the receiving cavity, the debris generated during the processing of the snap spring falls into the groove, and the debris in the groove falls into the receiving cavity under its own weight.

5. The device of claim 1 wherein, The groove is in the shape of an inverted circular table and avoids the first sliding rails.

6. The device of claim 1 wherein: ​ 7. A device for machining a clasp spring as claimed in claim 6, characterized in that ​

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