Polishing device for piston pin machining

Abstract

The polishing device for piston pin machining comprises an installation bottom box, a feeding and discharging plate and a containing strip plate, a driving lead screw is installed in the installation bottom box, one end of the driving lead screw is connected with the output end of a first servo motor, and guide sliding grooves are symmetrically formed in the inner wall of the installation bottom box; guide sliding blocks are symmetrically welded to the two sides of the feeding and discharging plate, the guide sliding blocks are clamped and embedded in the guide sliding grooves, a connecting block is fixedly installed on the bottom face of the feeding and discharging plate, a lead screw sleeve is fixedly installed in the connecting block, a driving lead screw is sleeved with the lead screw sleeve in a threaded mode, and placing battens are symmetrically and fixedly installed on the top face of the feeding and discharging plate. And a plurality of placing cavities are uniformly formed in the placing battens. The automatic feeding and discharging device has the beneficial effects that the mounting bottom box, the feeding and discharging plate, the placing strip plate and the arc-shaped plate are arranged, piston pin workpieces can be automatically fixed during feeding and can be automatically released from fixing and limiting during discharging, the automation degree is higher, the operation steps of workers are reduced, and the working efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of piston pin processing, in particular to a polishing device for piston pin processing. Background Art

[0002] The piston pin is a cylindrical pin installed on the piston skirt. Its middle part passes through the small end hole of the connecting rod and is used to connect the piston and the connecting rod. Its function is to transmit the gas force borne by the piston to the connecting rod, or to make the small end of the connecting rod drive the piston to move together. In order to reduce weight, the piston pin is generally made of high-quality alloy steel and made hollow. The surface of the piston pin workpiece needs to be ground and polished during the processing. For this purpose, a polishing device for piston pin processing is required.

[0003] The prior art discloses a polishing device for piston pin processing with the publication number CN210849616U, which includes an upper shell, a lower shell, a bracket, a conveyor belt, a conveyor roller, a placement strip, a placement cavity, a conveyor motor, a transmission motor, a transmission shaft, a placement hole, an arc plate, a limit rod, a connecting rod, a rod sleeve, an installation cavity, a polishing belt, a transmission roller, a bearing, a rotating rod, an outer sleeve, a threaded rod, a limit plate and an engagement block. The utility model has a reasonable structural design, and can simultaneously fix batches of piston pins through a feeding mechanism and a limit mechanism, and can simultaneously polish multiple piston pins with a polishing belt of a belt structure, which greatly improves the polishing efficiency; the utility model has a compact structural design, and can feed materials alternately through two symmetrically arranged placement strips, which can reasonably utilize time and greatly improve the polishing efficiency.

[0004] When in use, the utility model utilizes two placement strips to load multiple piston pin workpieces in sequence, so as to fully utilize the time for loading and unloading the workpieces and improve the polishing efficiency of the workpieces. However, when fixing the piston pin workpiece in the placement cavity, a worker is required to manually drive the threaded rod to rotate through a rotating rod to drive the arc plate to fix and limit the piston pin workpiece. This manual operation is inconvenient, the degree of automation is not high, and the worker's operating steps are increased, so the practicality is average. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a polishing device for piston pin processing, which can automatically fix the piston pin workpiece when it is loaded and automatically release the fixed limit when it is unloaded. It has the advantages of a higher degree of automation, reduces the number of operating steps for workers, and has higher work efficiency, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned advantages of being able to automatically fix the piston pin workpiece when loading it and automatically release the fixed limit when unloading it, the degree of automation is higher, the operating steps of workers are reduced, and the work efficiency is higher, the specific technical scheme adopted by the utility model is as follows: a polishing device for piston pin processing, comprising an installation bottom box, an upper and lower material plate and a placement strip plate, a driving screw is installed in the installation bottom box, and one end of the driving screw is connected to the output end of the first servo motor, the inner wall of the installation bottom box is symmetrically provided with guide grooves, guide sliders are symmetrically welded on both sides of the upper and lower material plates, and the guide sliders are embedded in the guide grooves, a connecting block is fixedly installed on the bottom surface of the upper and lower material plate, and a screw sleeve is fixedly installed in the connecting block, and the driving screw is threadedly sleeved on the screw sleeve, the top surface of the upper and lower material plate is symmetrically fixedly installed with a placement strip plate, and the placement strip plate A plurality of placement cavities are evenly provided on the plate, one side of the placement cavity is provided with a mounting groove provided on the placement strip, and a return spring is fixedly installed on one side of the mounting groove, and a mounting slide plate is connected and installed at a movable end of the return spring, each of the placement cavities is provided with a movable groove provided on the placement strip, and a movable plate is provided in the movable groove, and one end of the movable plate is fixedly connected to the side wall of the mounting slide plate, one side of the movable plate is fixedly connected with a connecting rod, one side of the placement cavity is fixedly provided with a mounting sleeve, and the connecting rod passes through one end of the mounting sleeve and is fixedly installed with an arc plate, a second electric telescopic rod is fixedly installed at the center of the side wall of one side of the mounting bottom box, and a positioning push plate is connected and installed at the output end of the second electric telescopic rod, and a pressing pin is symmetrically welded on one side of the positioning push plate, and a through hole penetrating the side wall of the placement strip is provided on one side of the mounting groove.

[0009] Furthermore, a mounting frame is welded to the center of the top surface of the mounting bottom box, and a first electric telescopic rod is installed in the center of the top surface of the mounting frame, and a lifting plate is connected to the output end of the first electric telescopic rod, and a plurality of rotating shafts are evenly installed on the bottom surface of the lifting plate, and a transmission gear is fixedly installed on the rotating shaft, and a second servo motor output end is connected to the top end of the rotating shaft, a connecting thread is provided on the rotating shaft, a polishing sleeve is connected to the bottom end of the rotating shaft, and a connecting screw hole is provided in the center of the top surface of the polishing sleeve, and the connecting screw hole and the connecting thread are meshed with each other.

[0010] Furthermore, a guide slide bar is symmetrically welded on the top surface of the lifting plate, a guide slide sleeve is symmetrically welded on the top surface of the mounting frame, and the guide slide bar is sleeved in the guide slide sleeve.

[0011] Furthermore, a control panel is fixedly mounted on the side wall of the mounting frame, and the control panel is electrically connected to the first servo motor, the second servo motor, the first electric telescopic rod, and the second electric telescopic rod.

[0012] Furthermore, the inner diameter of the through hole is larger than the diameter of the pressing pin.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a polishing device for piston pin processing, which has the following beneficial effects:

[0015] (1) The utility model is provided with an installation bottom box, an upper and lower material plate, a placement strip plate and an arc plate. When in use, a worker can insert a plurality of piston pins into the placement cavities provided on the placement strip plate through a loading device, and then start a first servo motor installed on one side of the installation bottom box through a control panel to drive the driving screw to rotate. Because the upper and lower material plates are installed in the installation bottom box, and the placement strip plate is symmetrically fixedly installed on the top surface of the upper and lower material plates, and the driving screw is connected to the inner thread sleeve of the screw sleeve fixedly installed in the connecting block fixedly installed on the bottom surface of the upper and lower material plates, in addition, the upper and lower material plates The guide sliding blocks welded symmetrically on both sides are embedded in the guide sliding grooves, so as the driving screw rotates, the loading and unloading plates can be driven to move along the direction of the guide sliding grooves. When the placing strip plate equipped with the piston pin workpiece moves to just below the mounting bracket, the control panel can start the second electric telescopic rod to push the positioning push plate to move. One side of the several placing cavities is provided with a mounting sliding groove, and a return spring is installed at one end of the mounting sliding groove, and a mounting slide plate is connected and installed at one end of the return spring. When the pressing pin symmetrically welded on one side of the positioning push plate is inserted into the through hole, the pressing pin can press one end of the mounting slide plate. The cam is pressed against the pressure plate, thereby causing the mounting slide plate to move along the mounting slide groove and causing the return spring to be compressed. On the other hand, a movable groove is provided on one side of the placement cavity, and a movable plate fixedly connected to the side wall of the mounting slide groove is provided in the movable groove, and a connecting rod fixedly installed on one side of the movable plate passes through the mounting sleeve and is connected to the arc plate. Therefore, when a plurality of arc plates move with the mounting slide groove, the piston pin workpiece in the placement cavity can be clamped and fixed while performing subsequent polishing operations. During the polishing process, a worker can load another batch of piston pin workpieces onto another placement strip. After the polishing process is completed, the second electric telescopic rod drives the positioning push plate to reset, and the plurality of arc plates are reset under the elastic force of the return spring, so that the polished piston pin workpiece is no longer fixed, so as to facilitate subsequent unloading operations. Then the first servo motor drives the loading and unloading plates to reset, and the worker can unload the processed piston pin workpiece, thereby enabling a polishing device for piston pin processing to automatically fix the piston pin workpiece when loading it, and automatically release the fixed limit when unloading it, with a higher degree of automation, reduced operating steps for workers, and higher work efficiency.

[0016] (2) The utility model is provided with a polishing sleeve and a rotating shaft. When polishing the piston pin workpiece, the worker can start the first electric telescopic rod installed on the mounting frame through the control panel to drive the lifting plate to descend along the direction of the guide slide bar. A plurality of rotating shafts are evenly installed on the bottom surface of the lifting plate, and connecting threads are provided on the rotating shafts. The connecting threads are screwed together with the connecting screw holes provided on the top surface of the polishing sleeves. Therefore, as the lifting plate descends, a plurality of polishing sleeves can be correspondingly sleeved on the piston pin workpiece. In addition, transmission gears are symmetrically installed on the rotating shafts, and adjacent transmission gears are meshed with each other. Therefore, when the second servo motor drives a rotating shaft to rotate, it can drive a plurality of polishing sleeves to rotate. The surface of the piston pin workpiece can be fully polished and polished by using the rotating polishing sleeves. The polishing effect is better, the practicability is stronger, and the polishing sleeves can be easily replaced, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a polishing device for piston pin processing according to an embodiment of the utility model;

[0019] Figure 2 It is a top view of the installation bottom box of a polishing device for processing a piston pin according to an embodiment of the utility model;

[0020] Figure 3 According to the embodiment of the utility model Figure 1 A magnified image of point A;

[0021] Figure 4 According to the embodiment of the utility model Figure 2 A magnified view of point B;

[0022] Figure 5 According to the embodiment of the utility model Figure 2 Enlarged view of point C;

[0023] Figure 6 It is a stereoscopic view of a pressing pin of a polishing device for piston pin processing according to an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Install the bottom box; 2. Connecting block; 3. Screw sleeve; 4. Loading and unloading plates; 5. Guide slider; 6. Placement strip; 7. Polishing sleeve; 8. Control panel; 9. Lifting plate; 10. Guide slide rod; 11. First electric telescopic rod; 12. Guide sleeve; 13. Mounting frame; 14. Positioning push plate; 15. Second electric telescopic rod; 16. Guide slide groove; 17. First servo motor; 18. Driving screw; 19. Placement cavity; 20. Second servo motor; 21. Rotating shaft; 22. Transmission gear; 23. Connecting thread; 24. Connecting screw hole; 25. Pressing pin; 26. Through hole; 27. Installing slide groove; 28. Reset spring; 29. ​​Installing slide plate; 30. Movable groove; 31. Movable plate; 32. Connecting rod; 33. Installing sleeve; 34. Arc plate. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a polishing device for machining a piston pin is provided.

[0028] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-6As shown, a polishing device for piston pin processing according to an embodiment of the utility model comprises an installation base box 1, an upper and lower material plates 4 and a placement strip plate 6, a driving screw 18 is installed in the installation base box 1, and one end of the driving screw 18 is connected to the output end of the first servo motor 17, a guide slide groove 16 is symmetrically provided on the inner wall of the installation base box 1, guide sliders 5 are symmetrically welded on both sides of the upper and lower material plates 4, and the guide sliders 5 are embedded in the guide slide groove 16, a connecting block 2 is fixedly installed on the bottom surface of the upper and lower material plates 4, a screw sleeve 3 is fixedly installed in the connecting block 2, and the driving screw 18 is sleeved on the inner thread of the screw sleeve 3, a placement strip plate 6 is symmetrically fixedly installed on the top surface of the upper and lower material plates 4, and a plurality of placement cavities 19 are evenly provided on the placement strip plate 6, a mounting slide groove 27 opened on the placement strip plate 6 is provided on one side of the placement cavity 19, and a return spring 28 is fixedly installed on one side of the mounting slide groove 27, and the movable end of the return spring 28 is connected to the mounting slide plate 29. A movable groove 30 is provided on one side of each placement cavity 19 and is provided with a movable plate 31 in the movable groove 30. One end of the movable plate 31 is fixedly connected to the side wall of the mounting slide plate 29. A connecting rod 32 is fixedly connected to one side of the movable plate 31. A mounting sleeve 33 is fixedly installed on one side of the placement cavity 19. The connecting rod 32 passes through one end of the mounting sleeve 33 and is fixedly installed with an arc plate 34. A second electric telescopic rod 15 is fixedly installed at the center of the side wall of one side of the mounting bottom box 1. A positioning push plate 14 is connected to the output end of the second electric telescopic rod 15, and a pressing pin 25 is symmetrically welded on one side of the positioning push plate 14. A through hole 26 is provided on one side of the mounting slide groove 27 and passes through the side wall of the placement strip 6. This enables a polishing device for piston pin processing to automatically fix the piston pin workpiece when loading it and automatically release the fixed limit when unloading it. The degree of automation is higher, the operation steps of the workers are reduced, and the work efficiency is higher.

[0029] In one embodiment, a mounting frame 13 is welded to the center of the top surface of the mounting bottom box 1, and a first electric telescopic rod 11 is installed in the center of the top surface of the mounting frame 13, and a lifting plate 9 is connected to the output end of the first electric telescopic rod 11, and a plurality of rotating shafts 21 are evenly installed on the bottom surface of the lifting plate 9, and a transmission gear 22 is fixedly installed on the rotating shaft 21, and the top of one rotating shaft 21 is connected to the output end of the second servo motor 20, a connecting thread 23 is provided on the rotating shaft 21, and a polishing sleeve 7 is connected to the bottom end of the rotating shaft 21, and a connecting screw hole 24 is provided in the center of the top surface of the polishing sleeve 7, and the connecting screw hole 24 and the connecting thread 23 are meshed with each other, so that the surface of the piston pin workpiece can be fully polished by using the rotating polishing sleeve 7, the polishing effect is better, the practicability is stronger, and the polishing sleeve 7 is easy to replace, which is more convenient to use.

[0030] In one embodiment, a guide slide bar 10 is symmetrically welded on the top surface of the lifting plate 9, and a guide sleeve 12 is symmetrically welded on the top surface of the mounting frame 13. The guide slide bar 10 is sleeved in the guide sleeve 12, which provides guidance for the smooth lifting and lowering of the lifting plate 9.

[0031] In one embodiment, a control panel 8 is fixedly mounted on the side wall of the mounting frame 13, and the control panel 8 is electrically connected to the first servo motor 17, the second servo motor 20, the first electric telescopic rod 11 and the second electric telescopic rod 15, so as to control the normal operation of the device.

[0032] In one embodiment, the inner diameter of the through hole 26 is larger than the diameter of the pressing pin 25 .

[0033] Working principle: The utility model is provided with an installation base box 1, an upper and lower material plate 4, a placement strip plate 6 and an arc plate 34. When in use, a worker can use a loading device to insert a number of piston pins into the placement cavity 19 opened on the placement strip plate 6, and then start the first servo motor 17 installed on one side of the installation base box 1 through the control panel 8 to drive the driving screw 18 to rotate. Because the upper and lower material plates 4 are installed in the installation base box 1, and the placement strip plate 6 is symmetrically fixedly installed on the top surface of the upper and lower material plates 4, and the driving screw 18 is connected to the internal thread sleeve of the screw sleeve 3 fixedly installed in the connecting block 2 fixedly installed on the bottom surface of the upper and lower material plates 4. In addition, the guide sliders 5 symmetrically welded on both sides of the upper and lower material plates 4 are embedded in the guide slide groove 16, so the upper and lower can be driven with the rotation of the driving screw 18. The material plate 4 moves along the direction of the guide slide groove 16. When the placement strip plate 6 equipped with the piston pin workpiece moves to the bottom of the mounting frame 13, the control panel 8 can start the second electric telescopic rod 15 to push the positioning push plate 14 to move. A mounting slide groove 27 is provided on one side of the set several placement cavities 19, and a return spring 28 is installed at one end of the mounting slide groove 27, and a mounting slide plate 29 is connected and installed at one end of the return spring 28. When the pressing pin 25 symmetrically welded on one side of the positioning push plate 14 is inserted into the through hole 26, the pressing pin 25 can press one end of the mounting slide plate 29, so that the mounting slide plate 29 moves along the mounting slide groove 27 and the return spring 28 is compressed. On the other hand, a movable groove 30 is provided on one side of the set placement cavity 19, and a movable groove 30 is provided in the movable groove 30. The movable plate 31 is fixedly connected to the side wall of the mounting slide 29, and the connecting rod 32 fixedly installed on one side of the movable plate 31 passes through the mounting sleeve 33 and is connected to the arc plate 34. Therefore, when the plurality of arc plates 34 move with the mounting slide 29, the piston pin workpiece in the placement cavity 19 can be clamped and fixed while the subsequent polishing operation is carried out. During the polishing process, the worker can load another batch of piston pin workpieces onto another placement strip plate 6. After the polishing process is completed, the second electric telescopic rod 15 drives the positioning push plate 14 to reset. Then, under the elastic force of the reset spring 28, the plurality of arc plates 34 are reset, so that the polished piston pin workpiece is no longer fixed, so as to facilitate the subsequent unloading operation. Then the first servo motor 17 drives the loading and unloading plates 4 to perform the resetting process. The worker can unload the processed piston pin workpiece, so that a polishing device for piston pin processing can automatically fix the piston pin workpiece when loading it, and automatically release the fixed limit when unloading it, which has a higher degree of automation, reduces the operation steps of the workers, and has higher work efficiency. In addition, the utility model is provided with a polishing sleeve 7 and a rotating shaft 21. When polishing the piston pin workpiece, the worker can start the first electric telescopic rod 11 installed on the mounting frame 13 through the control panel 8 to drive the lifting plate 9 to descend along the direction of the guide slide bar 10. A plurality of rotating shafts 21 are evenly installed on the bottom surface of the lifting plate 9, and a connecting thread 23 is provided on the rotating shaft 21, and the connecting thread 23 is screwed with the connecting screw hole 24 provided on the top surface of the polishing sleeve 7.Therefore, as the lifting plate 9 descends, several polishing sleeves 7 can be correspondingly sleeved on the piston pin workpiece. In addition, the rotating shaft 21 is symmetrically installed with transmission gears 22, and the adjacent transmission gears 22 are meshed with each other. Therefore, when the second servo motor 20 drives a rotating shaft 21 to rotate, it can drive several polishing sleeves 7 to rotate. The rotating polishing sleeves 7 can be used to fully grind and polish the surface of the piston pin workpiece, with better grinding and polishing effect, stronger practicality, and easy replacement of the polishing sleeves 7, which is more convenient to use.

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polishing device for piston pin processing, comprising a mounting bottom box (1), a loading and unloading plate (4) and a placing strip plate (6), characterized in that: A driving screw (18) is installed in the installation base box (1), and one end of the driving screw (18) is connected to the output end of the first servo motor (17). The inner wall of the installation base box (1) is symmetrically provided with a guide slot (16). Guide sliders (5) are symmetrically welded on both sides of the upper and lower material plates (4), and the guide sliders (5) are embedded in the guide slots (16). A connecting block (2) is fixedly installed on the bottom surface of the upper and lower material plates (4), and a screw sleeve (3) is fixedly installed in the connecting block (2), and the driving screw (18) is connected to the inner thread of the screw sleeve (3). A placement strip (6) is symmetrically fixedly installed on the top surface of the upper and lower material plates (4), and a plurality of placement cavities (19) are evenly provided on the placement strip (6). One side of the placement cavity (19) is provided with a mounting slot (27) opened on the placement strip (6), and a return spring (28) is fixedly installed on one side of the mounting slot (27), and the return spring (28) 28) A mounting slide plate (29) is connected and installed at the movable end, and each of the placement cavities (19) is provided with a movable groove (30) opened on the placement strip (6), and a movable plate (31) is provided in the movable groove (30), and one end of the movable plate (31) is fixedly connected to the side wall of the mounting slide plate (29), and one side of the movable plate (31) is fixedly connected to a connecting rod (32), and one side of the placement cavity (19) is fixedly installed with a mounting sleeve (33), and one end of the connecting rod (32) passes through the mounting sleeve (33) and is fixedly installed with an arc plate (34), and a second electric telescopic rod (15) is fixedly installed at the center of the side wall of one side of the installation bottom box (1), and the output end of the second electric telescopic rod (15) is connected and installed with a positioning push plate (14), and a pressing pin (25) is symmetrically welded on one side of the positioning push plate (14), and one side of the mounting slide groove (27) is provided with a through hole (26) passing through the side wall of the placement strip (6).

2. A polishing device for piston pin machining according to claim 1, characterized in that: A mounting frame (13) is welded at the center of the top surface of the mounting bottom box (1), and a first electric telescopic rod (11) is mounted at the center of the top surface of the mounting frame (13), and a lifting plate (9) is connected and mounted at the output end of the first electric telescopic rod (11), a plurality of rotating shafts (21) are evenly mounted on the bottom surface of the lifting plate (9), and a transmission gear (22) is fixedly mounted on the rotating shaft (21), the top end of one of the rotating shafts (21) is connected to the output end of a second servo motor (20), a connecting thread (23) is provided on the rotating shaft (21), a polishing sleeve (7) is connected and mounted at the bottom end of the rotating shaft (21), and a connecting screw hole (24) is provided at the center of the top surface of the polishing sleeve (7), and the connecting screw hole (24) and the connecting thread (23) are meshed with each other.

3. A polishing device for piston pin machining according to claim 2, characterized in that: A guide slide bar (10) is symmetrically welded to the top surface of the lifting plate (9), a guide slide sleeve (12) is symmetrically welded to the top surface of the mounting frame (13), and the guide slide bar (10) is sleeved in the guide slide sleeve (12).

4. A polishing device for piston pin machining according to claim 2, characterized in that: A control panel (8) is fixedly mounted on the side wall of the mounting frame (13), and the control panel (8) is electrically connected to the first servo motor (17), the second servo motor (20), the first electric telescopic rod (11) and the second electric telescopic rod (15).

5. A polishing device for piston pin machining according to claim 1, characterized in that: The inner diameter of the through hole (26) is greater than the diameter of the pressing pin (25).

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