Clamping device for finishing treatment of shaft sleeve of wear-resistant front reduction piston

Abstract

The utility model provides a clamping device for finishing a shaft sleeve of a wear-resistant front reduction piston, which relates to the technical field of powder metallurgy and comprises a processing base, a first servo motor is fixedly mounted on the surface of one side of the processing base, and an output shaft of the first servo motor is fixedly connected with a two-way screw rod through a coupler. When the device is used, after finishing treatment on the surface of one side of the shaft sleeve is completed, a series of complex operations such as loosening a clamping device, overturning the shaft sleeve, clamping and fixing again and the like are not needed, the shaft sleeve can be directly overturned, so that finishing treatment is carried out on the surface of the other side of the shaft sleeve, and the efficiency is greatly improved. Compared with the prior art, machining efficiency is improved, machining cost is reduced, in addition, due to the arrangement of the multiple V-shaped clamping blocks, clamping force borne by the shaft sleeve can be more uniform, and the problem that the surface of the shaft sleeve is damaged due to the fact that clamping force of a traditional clamping device is not uniform or too large is solved.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy technology, and in particular to a clamping device for finishing the bushing of a wear-resistant front reducer piston. Background Technology

[0002] Powder metallurgy is a process technology that produces metal powders or uses metal powders (or mixtures of metal powders and non-metal powders) as raw materials, and manufactures metal materials, composite materials and various types of products through forming and sintering. In terms of application fields, powder metallurgy has an extremely wide range of applications. In the automotive industry, the wear-resistant front shock absorber piston is a key component in the shock absorber. It is mainly used to absorb and buffer the vibration and impact force transmitted to the vehicle by the road surface through its own movement during vehicle operation. The bushing in the wear-resistant front shock absorber piston is a key component. The bushing is located between the piston and related moving parts (such as the piston rod). One of its main functions is to reduce friction. The bushing can also provide precise guidance for the movement of the piston.

[0003] When processing existing bushings after sintering, the clamping device used cannot flexibly flip the bushing. This means that after finishing one side of the bushing, the clamping device needs to be loosened, the bushing flipped over, and then re-clamped and fixed. Only after this series of complicated operations can the other side be finished. This is very troublesome to use, has low processing efficiency, and increases processing costs.

[0004] Therefore, we propose a clamping device for finishing the bushing of a wear-resistant front piston. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies. When processing existing bushings after sintering, the clamping device used cannot flexibly flip the bushing. This means that after finishing one side of the bushing, the clamping device needs to be loosened, the bushing flipped, and then re-clamped and fixed. Only after this series of complex operations can the other side be finished. This is very troublesome to use, has low processing efficiency, and increases processing costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A clamping device for finishing the bushing of a wear-resistant front reducer piston includes a processing base. A first servo motor is fixedly mounted on one side surface of the processing base. The output shaft of the first servo motor is fixedly connected to a bidirectional lead screw via a coupling. One end of the bidirectional lead screw passes through and extends into the interior of the processing base. The other end of the bidirectional lead screw is mounted to the inner wall of one side of the processing base via a bearing. The outer surface of the bidirectional lead screw is threaded with symmetrically distributed movable columns.

[0008] The upper surface of the processing base is provided with symmetrically distributed movable grooves, one end of which penetrates and extends to the inner top wall of the processing base.

[0009] Preferably, the two side surfaces of the two movable columns are in contact with the inner walls of the two movable slots respectively, and a first mounting hole is provided on one side surface of the movable column.

[0010] Preferably, one end of the first mounting hole extends through and to the other side surface of the movable column, and a rotating shaft is mounted on the inner wall of the first mounting hole via a bearing.

[0011] Preferably, one end of the rotating shaft is fixedly connected to an arc-shaped block, and the inner wall of the arc-shaped block is provided with a second mounting hole arranged in a ring array, and a guide rod is slidably sleeved on the inner wall of the second mounting hole.

[0012] Preferably, one end of the guide rod is fixedly connected to a V-shaped clamping block, one side surface of the V-shaped clamping block is fixedly connected to a spring, and one end of each of the springs is fixedly connected to the inner wall of the arc-shaped block.

[0013] Preferably, the other end of the guide rod is fixedly connected to a limiting disc, one side surface of the plurality of limiting discs is in contact with the outer surface of the arc-shaped block, a turbine is fixedly sleeved on the outer surface of the other end of one of the rotating shafts, and a mounting plate is fixedly connected to one side surface of one of the moving columns.

[0014] Preferably, a second servo motor is fixedly mounted on the upper surface of the mounting plate, and the output shaft of the second servo motor is fixedly connected to a worm gear through a coupling. The tooth surface of the worm gear meshes with the tooth surface of the turbine. Support legs arranged in a rectangular array are fixedly connected to the lower surface of the processing base, and a lifting platform is fixedly mounted on the upper surface of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When using this device, after finishing one side of the bushing, there is no need to loosen the clamping device, flip the bushing, and then re-clamp and fix it, etc., which are complicated operations. The bushing can be directly flipped over to finish the other side of the bushing, which improves processing efficiency and reduces processing costs. In addition, the multiple V-shaped clamps of this device can make the clamping force on the bushing more uniform, avoiding the problem of damage to the bushing surface caused by uneven or excessive clamping force in traditional clamping devices. Attached Figure Description

[0017] Figure 1 A schematic diagram of the main structure of a clamping device for finishing the bushing of a wear-resistant front reducer piston provided by this utility model;

[0018] Figure 2 A cross-sectional view of the processing base structure of a clamping device for finishing the bushing of a wear-resistant front reducer piston provided by this utility model;

[0019] Figure 3 A perspective view of the rotating shaft structure of a clamping device for finishing the bushing of a wear-resistant front reducer piston provided by this utility model;

[0020] Figure 4 This utility model provides a clamping device for finishing the bushing of a wear-resistant front reducer piston. Figure 3 Enlarged view of the structure at point A in the middle.

[0021] Legend: 1. Processing base; 2. First servo motor; 3. Two-way lead screw; 4. Moving column; 5. Moving groove; 6. First mounting hole; 7. Rotating shaft; 8. Arc block; 9. Second mounting hole; 10. Guide rod; 11. V-shaped clamp; 12. Spring; 13. Limiting disc; 14. Turbine; 15. Mounting plate; 16. Second servo motor; 17. Worm gear; 18. Support leg; 19. Lifting platform. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Example 1

[0027] like Figure 1-4 As shown, this utility model provides a technical solution: including a processing base 1, a first servo motor 2 is fixedly installed on one side surface of the processing base 1, the output shaft of the first servo motor 2 is fixedly connected to a bidirectional lead screw 3 through a coupling, one end of the bidirectional lead screw 3 passes through and extends into the interior of the processing base 1, the other end of the bidirectional lead screw 3 is installed on the inner wall of one side of the processing base 1 through a bearing, and the outer surface of the bidirectional lead screw 3 is threaded with symmetrically distributed moving columns 4, and the first servo motor 2 drives two moving blocks to move relative to each other through the bidirectional lead screw 3;

[0028] The upper surface of the processing base 1 is provided with symmetrically distributed moving grooves 5, one end of which penetrates and extends to the inner top wall of the processing base 1.

[0029] Example 2

[0030] like Figure 1-4 As shown, this utility model provides a technical solution: the two side surfaces of the two movable columns 4 are in contact with the inner walls of the two side surfaces of the two movable grooves 5 respectively, and a first mounting hole 6 is provided on one side surface of the movable column 4.

[0031] One end of the first mounting hole 6 penetrates and extends to the other side surface of the movable column 4, and a rotating shaft 7 is mounted on the inner wall of the first mounting hole 6 via a bearing.

[0032] One end of the rotating shaft 7 is fixedly connected to an arc-shaped block 8. The inner wall of the arc-shaped block 8 is provided with a second mounting hole 9 arranged in a ring array. A guide rod 10 is slidably sleeved on the inner wall of the second mounting hole 9.

[0033] A V-shaped clamp 11 is fixedly connected to one end of the guide rod 10. A spring 12 is fixedly connected to one side surface of the V-shaped clamp 11. For general automotive bushings, the stiffness of the spring 12 can be selected between 10-50 N / mm. The specific value is optimized according to the actual working conditions. One end of each spring 12 is fixedly connected to the inner wall of the arc-shaped block 8.

[0034] The other end of the guide rod 10 is fixedly connected to the limiting disc 13. One side surface of the multiple limiting discs 13 is in contact with the outer surface of the arc block 8. The outer surface of the other end of one of the rotating shafts 7 is fixedly sleeved with a turbine 14. One side surface of one of the moving columns 4 is fixedly connected to the mounting plate 15.

[0035] A second servo motor 16 is fixedly mounted on the upper surface of the mounting plate 15. The output shaft of the second servo motor 16 is fixedly connected to the worm gear 17 through a coupling. The tooth surface of the worm gear 17 meshes with the tooth surface of the turbine gear 14. The arrangement of the worm gear 17 and the turbine gear 14 can form a limiting effect after the flipping is completed. Support legs 18 arranged in a rectangular array are fixedly connected to the lower surface of the processing base 1. A lifting platform 19 is fixedly mounted on the upper surface of the base.

[0036] When using this device, after finishing one side of the bushing, there is no need to loosen the clamping device, flip the bushing, and then re-clamp and fix it, etc., which are complicated operations. The bushing can be directly flipped over to finish the other side of the bushing, which improves processing efficiency and reduces processing costs. In addition, the multiple V-shaped clamps of this device can make the clamping force on the bushing more uniform, avoiding the problem of damage to the bushing surface caused by uneven or excessive clamping force in traditional clamping devices.

[0037] The working process of this utility model:

[0038] Step 1: After the bushing is sintered and formed, it is placed on the lifting platform 19. The lifting platform 19 is activated to raise the bushing to the appropriate height so that the V-shaped clamps 11 can hold the outer surface of the bushing. The first servo motor 2 is activated, which drives two moving blocks to move relative to each other through the bidirectional lead screw 3. This, in turn, drives multiple V-shaped clamps 11 to move relative to each other through the arc block 8, until all the V-shaped clamps 11 hold the outer surface of the bushing. When the V-shaped clamps 11 contact the bushing, the bushing will apply an outward force to the V-shaped clamps 11. Since one end of the spring 12 is fixedly connected to the V-shaped clamps 11, this outward force will compress the spring 12. Spring 12 generates an inward elastic restoring force, which is transmitted to the bushing through the spring 12 mounting base and the V-shaped clamp 11. The elastic restoring forces generated by multiple evenly distributed springs 12 work together to form a clamping force on the bushing. As long as the elastic restoring force of the spring 12 is large enough, it can overcome the weight of the bushing, external forces during processing, and other factors, so that the clamps can tightly clamp the bushing. For general automotive bushings, the stiffness of the spring 12 can be selected between 10-50 N / mm. The specific value is optimized according to the actual working conditions. After clamping and fixing, the lifting platform 19 is reset, and the upper side surface of the bushing can be finished.

[0039] Step 2: After finishing one side of the bushing, start the second servo motor 16 to drive the worm gear 17 to rotate. With the cooperation of the bearing, the worm gear 14 drives the rotating shaft 7 to rotate. The rotation of the rotating shaft 7 drives multiple V-shaped clamps 11 to rotate through the arc block 8, thereby turning the bushing over so that the side surface that was originally on the bottom can be flipped to the top, and the side surface can then be finished.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for finishing the bushing of a wear-resistant front reducer piston, comprising a processing base (1), characterized in that: A first servo motor (2) is fixedly installed on one side surface of the processing base (1). The output shaft of the first servo motor (2) is fixedly connected to a bidirectional lead screw (3) through a coupling. One end of the bidirectional lead screw (3) passes through and extends into the interior of the processing base (1). One end of the bidirectional lead screw (3) is installed on the inner wall of one side of the processing base (1) through a bearing. The outer surface of the bidirectional lead screw (3) is threaded with symmetrically distributed movable columns (4). The upper surface of the processing base (1) is provided with symmetrically distributed moving grooves (5), one end of which penetrates and extends to the inner top wall of the processing base (1).

2. The clamping device for finishing the bushing of a wear-resistant front reducer piston according to claim 1, characterized in that: The two side surfaces of the two movable columns (4) respectively contact the inner walls of the two movable slots (5), and a first mounting hole (6) is provided on one side surface of the movable column (4).

3. The clamping device for finishing the bushing of a wear-resistant front reducer piston according to claim 2, characterized in that: One end of the first mounting hole (6) extends through and to the other side surface of the movable column (4), and a rotating shaft (7) is mounted on the inner wall of the first mounting hole (6) via a bearing.

4. The clamping device for finishing the bushing of a wear-resistant front reducer piston according to claim 3, characterized in that: One end of the rotating shaft (7) is fixedly connected to an arc-shaped block (8), and the inner wall of the arc-shaped block (8) is provided with a second mounting hole (9) arranged in a ring array. A guide rod (10) is slidably sleeved on the inner wall of the second mounting hole (9).

5. The clamping device for finishing the bushing of a wear-resistant front reducer piston according to claim 4, characterized in that: One end of the guide rod (10) is fixedly connected to a V-shaped clamp (11), and a spring (12) is fixedly connected to one side surface of the V-shaped clamp (11). One end of each of the springs (12) is fixedly connected to the inner wall of the arc-shaped block (8).

6. The clamping device for finishing the bushing of a wear-resistant front reducer piston according to claim 5, characterized in that: The other end of the guide rod (10) is fixedly connected to a limiting disc (13). One side surface of the multiple limiting discs (13) is in contact with the outer surface of the arc block (8). A turbine (14) is fixedly sleeved on the outer surface of the other end of one of the rotating shafts (7). A mounting plate (15) is fixedly connected to one side surface of one of the moving columns (4).

7. The clamping device for finishing the bushing of a wear-resistant front reducer piston according to claim 6, characterized in that: The upper surface of the mounting plate (15) is fixedly mounted with a second servo motor (16), the output shaft of the second servo motor (16) is fixedly connected to a worm gear (17) through a coupling, the tooth surface of the worm gear (17) meshes with the tooth surface of the turbine (14), the lower surface of the processing base (1) is fixedly connected with support legs (18) arranged in a rectangular array, and the upper surface of the base is fixedly mounted with a lifting platform (19).

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