A plunger surface treatment apparatus

Abstract

This invention discloses a surface treatment device for pushbuttons, comprising a transfer unit, a polishing unit, a switching unit, and a loading / unloading unit. The transfer unit includes an outer frame with a square opening at one end facing the coating machine. An inner frame is located inside the outer frame, and a square plate is located at one end of the inner frame. Vertical holes are formed at each perpendicular intersection of the grid plates. A tube frame, communicating with the vertical holes and positioned on the upper surface of the grid plate, is located above the vertical holes. A top tube is mounted on the tube frame, and the lower end of the top tube has an annular opening matching the tube frame. The polishing unit includes a polishing component and a top-loading component. The polishing component polishes the end face of a single pushbutton, and the top-loading component lifts the single pushbutton upwards. The switching unit is located at one end of the transfer unit and is used to transfer the pushbuttons between the inner frame and the loading / unloading unit. The loading / unloading unit is located at one end of the switching unit and includes a clamping component for simultaneously clamping each pushbutton. This invention can improve the efficiency of pushbutton polishing and coating, and reduce manual operation.

Description

Technical Field

[0001] This invention relates to the technical field of tappet surface processing technology, and in particular to a tappet surface treatment device. Background Technology

[0002] The production of tappets involves multiple technological steps, among which surface treatment is a crucial process. This surface treatment includes polishing and coating. During use, the tappet's end face directly contacts the camshaft, bearing high-frequency sliding friction and impact loads. Polishing the end face significantly reduces the coefficient of friction, decreases wear and heat accumulation, thereby extending its service life. Coating the outer periphery of the tappet enhances fatigue and scratch resistance, improves surface oil retention, and strengthens boundary lubrication.

[0003] Figure 14 The diagram shows a simple structure of the pusher 6, which is cylindrical in shape with an opening at the bottom and an inner circumference with a ring plate 61. The ring plate 61 has a bottom opening 62. The existing polishing method involves placing a large number of pushers 6 randomly on a worktable, then manually holding each pusher 6 and placing it sequentially on the polishing side of a polishing wheel for processing. The polished pushers 6 are then placed on another worktable. This method is labor-intensive, and it is difficult to control the pressure of the pushers contacting the polishing wheel when polishing by hand, resulting in inconsistent polishing levels among the pushers 6.

[0004] Figure 1 The diagram shows a simple structure of the coating machine 5. An openable coating chamber 51 is mounted on a base plate 54, which also houses a control box 55. Inside the coating chamber 51, such as... Figure 15 As shown, a workpiece holder 52 is equipped with a dedicated support for the pushers 6, and multiple placement rods 53 are provided on its side for placing each pusher 6. The existing technology involves manually placing each pusher 6 onto the placement rod 53 one by one, and then removing each pusher 6 one by one after the coating is completed, and then collecting them. This method is also labor-intensive. Summary of the Invention

[0005] To address the aforementioned shortcomings, this invention provides a tappet surface treatment device that can improve the efficiency of tappet polishing and coating, and reduce manual operation.

[0006] In order to achieve the objectives of this invention, the following technologies are proposed:

[0007] A surface treatment device for tappets, located at one end of a coating machine, includes:

[0008] The transfer unit includes a first linear mechanism, a second linear mechanism at its sliding end, an outer frame at the output end of the second linear mechanism, a square opening at one end of the outer frame facing the coating machine, an inner frame inside the outer frame, a square plate at one end of the inner frame passing through the square opening, a grid plate on the inner side of the inner frame, vertical holes at each perpendicular intersection of the grid plate, a tube rack above the vertical holes that communicates with the grid plate and is located on the upper surface of the grid plate, a top tube is mounted on the tube rack, and when the push column is placed, the outer periphery of the top tube abuts against the inner periphery of the bottom opening of the push column, and an annular opening matching the tube rack is opened at the lower end of the top tube;

[0009] The polishing unit includes a polishing assembly located above the transfer unit and a top material assembly located below the transfer unit. The polishing assembly is used to polish the end face of a single push rod, and the top material assembly is used to lift the single push rod upward so that it contacts the polishing assembly.

[0010] The switching unit, located at one end of the transfer unit, is used to transfer each column between the inner frame and the loading / unloading unit;

[0011] The loading and unloading unit is located at one end of the switching unit and includes a fifth linear mechanism arranged parallel to the first linear mechanism. The sliding end of the fifth linear mechanism is vertically provided with a third rotary motor, and the upper end of the output shaft of the third rotary motor is provided with a clamping assembly for simultaneously clamping each push rod.

[0012] Furthermore, the polishing assembly includes a vertically arranged first rotary motor, with a polishing wheel at the lower end of its output end.

[0013] Furthermore, the switching unit includes a second rotary motor, one end of which is provided with a fourth linear mechanism, one end of which is provided with a receiving block, and one end of which is provided with a receiving groove that matches the square plate.

[0014] Furthermore, the clamping assembly includes an F-shaped frame, with a sixth linear mechanism with opposite output directions at one end of each of its two horizontal sides. The output shaft of the sixth linear mechanism is provided with a lifting plate, a rotating plate perpendicular to it at one end of the lifting plate, a vertical plate at one end of the rotating plate, multiple horizontal plates along the vertical direction on one side of the vertical plate, multiple extension plates on one side of the horizontal plates, and a clamping block at one end of the extension plate. The upper or lower end face of the clamping block is provided with an arc-shaped groove that matches the outer periphery of the pusher.

[0015] The beneficial effects of this technical solution are as follows:

[0016] 1. By combining the processes of polishing and coating the pushers, each pusher only needs to be placed at the beginning and removed after all are completed. This reduces the material feeding or finishing steps during polishing and the separate material feeding step during coating, which can reduce a lot of manual operation and improve production efficiency.

[0017] 2. During polishing, the push rods can be raised to the same distance in a stable sequence, improving product consistency. Attached Figure Description

[0018] Figure 1 A perspective view showing the overall equipment of this application and its positional relationship with the coating machine is shown.

[0019] Figure 2 A perspective view of the transfer unit according to an embodiment of this application is shown.

[0020] Figure 3 A partial explosion of the transfer unit in an embodiment of this application is shown. Figure 1 .

[0021] Figure 4 A partial explosion of the transfer unit in an embodiment of this application is shown. Figure 2 .

[0022] Figure 5 A partial explosion of the transfer unit in an embodiment of this application is shown. Figure 3 .

[0023] Figure 6 A partial cross-sectional view of the transfer unit according to an embodiment of this application is shown.

[0024] Figure 7 A partial cross-sectional perspective view of the transfer unit according to an embodiment of this application is shown.

[0025] Figure 8 A perspective view of the polishing unit according to an embodiment of this application is shown.

[0026] Figure 9 A perspective view of the switching unit according to an embodiment of this application is shown.

[0027] Figure 10 A perspective view of the switching unit and loading / unloading unit of this application embodiment during the handover of the pushers is shown.

[0028] Figure 11 A partial perspective view of the loading and unloading unit according to an embodiment of this application is shown.

[0029] Figure 12 A partial explosion of the loading and unloading unit in an embodiment of this application is shown. Figure 1 .

[0030] Figure 13 A partial explosion of the loading and unloading unit in an embodiment of this application is shown. Figure 2 .

[0031] Figure 14 The illustration shows perspective views of the tappet in the background art of this application, viewed from the upper and lower sides, respectively.

[0032] Figure 15A perspective view of the workpiece holder of the coating machine mentioned in the background art of this application is shown. Detailed Implementation

[0033] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0034] like Figures 1-13 The above-described surface treatment equipment for push rods is located at one end of a coating machine 5 and includes a transfer unit 1, a polishing unit 2, a switching unit 3, and a loading / unloading unit 4.

[0035] The transfer unit 1 includes a first linear mechanism 11, with a parallel slide groove 17 on one side. A through slot is formed on the side of the slide groove 17. A second linear mechanism 12, with its output direction pointing upwards towards the slide groove 17, is located at the sliding end of the first linear mechanism 11. An outer frame 13, positioned between the first linear mechanism 11 and the slide groove 17, is located at the output end of the second linear mechanism 12. A square opening 131 is formed at the end of the outer frame 13 facing the coating machine 5. A U-shaped plate 132 is located at the lower end of the outer frame 13. The four inner sides of the U-shaped plate 132 extend towards the center below the outer frame 13. A slider 133, passing through the through slot, is located on one side of the outer frame 13. An inner frame 14, mounted on the U-shaped plate 132, is located inside the outer frame 13. A square plate 141, passing through the square opening 131, is located at one end of the inner frame 14. A mesh plate 142 is located on the inner side of the inner frame 14. The grid plate 142 includes multiple X-axis plates and multiple Z-axis plates. The X-axis plates and Z-axis plates are arranged perpendicular to each other. Vertical holes 143 are provided at each intersection position of the X-axis plates and Z-axis plates. Specifically, when the inner frame 14 is rotated to a vertical state and raised or lowered to a predetermined height, each vertical hole 143 is coaxial with each placement rod 53. A tube frame 15 is provided above the vertical hole 143 and is provided on the upper end face of the grid plate 142. A top tube 16 is mounted on the tube frame 15. When the push rod 6 is placed, the outer periphery of the top tube 16 abuts against the inner periphery of the bottom opening 62 of the push rod 6. Specifically, the tube frame 15 is made of rubber, and the top tube 16 is made of metal. The lower end of the top tube 16 is provided with an annular opening that matches the tube frame 15. More specifically, the first linear mechanism 11 is provided on a pair of first supports 111, and the slide groove 17 is provided on a pair of second supports.

[0036] Polishing unit 2 includes a polishing assembly located above transfer unit 1 and a top-feeding assembly located below transfer unit 1. The polishing assembly is used to polish the end face of a single pusher 6, and the top-feeding assembly is used to lift the single pusher 6 upwards so that it contacts the polishing assembly. The polishing assembly includes a vertically arranged first rotary motor 21. A polishing wheel 22 is provided at the lower end of the output end of the first rotary motor 21. The upper and lower ends and the outer periphery of the polishing wheel 22 are provided with protective plates 221 covering 3 / 4 of its circumference. The top-feeding assembly is provided with a vacuum pump 23. The suction end of the vacuum pump 23 is provided with a connecting pipe 24, which includes a horizontal part and a 90° bend. The upper end of the 90° bend is connected to a telescopic hose 241, and the upper end of the telescopic hose 241 is provided with a vertical pipe 2. 42. The upper end of the vertical pipe 242 is provided with a connecting pipe 25 for passing through the vertical hole 143. Specifically, a tapered pipe is also connected between the vertical pipe 242 and the connecting pipe 25. When the connecting pipe 25 passes through the vertical hole 143, the outer circumference of the connecting pipe 25 abuts against the inner circumference of the vertical hole 143. The inner diameter of the connecting pipe 25 is the same as the inner diameter of the top pipe 16. The top material assembly also includes a vertically arranged third linear mechanism 26. The upper end of its output shaft is provided with a connecting plate 27. One end of the connecting plate 27 is fixed to the outer circumference of the vertical pipe 242. More specifically, the first rotary motor 21 is provided on the first inverted L-shaped bracket 211, the vacuum pump 23 is provided on the third bracket 231, and the third linear mechanism 26 is provided on the second inverted L-shaped bracket 261.

[0037] The switching unit 3 is located at one end of the transfer unit 1 and includes a second rotary motor 31, whose output shaft is parallel to the output shaft of the second linear mechanism 12. A fourth linear mechanism 33 is provided at one end of the output shaft of the second rotary motor 31, and a receiving block 34 is provided at one end of the output shaft of the fourth linear mechanism 33. A receiving groove 35 matching the square plate 141 is opened at one end of the receiving block 34. More specifically, the second rotary motor 31 is located on the fourth bracket 32.

[0038] The loading / unloading unit 4 is located at one end of the switching unit 3, and the switching unit 3 is located between the transfer unit 1 and the loading / unloading unit 4. The loading / unloading unit 4 includes a fifth linear mechanism 41 arranged parallel to the first linear mechanism 11, and a clamping assembly for simultaneously clamping each pusher 6. The sliding end of the fifth linear mechanism 41 is vertically provided with a third rotary motor 42. The clamping assembly includes an F-shaped frame 421 located at the upper end of the output shaft of the third rotary motor 42. Each of its two horizontal sides is provided with a sixth linear mechanism 43 with opposite output directions. One end of the output shaft of the sixth linear mechanism 43 is provided with a lifting plate 431. One end of the lifting plate 431 is provided with a rotating plate 432 arranged perpendicularly to it. One end of the rotating plate 432 is provided with a vertical plate 44. A plurality of horizontal plates 441 are provided on one side of the vertical plate 44 in the vertical direction. A plurality of extension plates 45 are provided on one side of the horizontal plates 441. A clamping block 46 is provided at one end of the extension plate 45. An arc groove 47 matching the outer periphery of the mast 6 is opened on the upper or lower end surface of the clamping block 46. Specifically, each clamping block 46 connected to each extension plate 45 on one side of a vertical plate 44 has an arc groove 47 on its upper end surface. Each clamping block 46 connected to each extension plate 45 on one side of another vertical plate 44 has an arc groove 47 on its lower end surface. The clamping blocks 46 with arc grooves 47 on their upper end surface and the clamping blocks 46 with arc grooves 47 on their lower end surface are arranged in pairs to clamp the mast 6. More specifically, the fifth linear mechanism 41 is provided on a pair of fifth supports.

[0039] In this embodiment, the first linear mechanism 11 and the fifth linear mechanism 41 are rodless linear cylinders or linear guides, while the second linear mechanism 12, the third linear mechanism 26, the fourth linear mechanism 33, and the sixth linear mechanism 43 are single-axis linear cylinders or linear hydraulic cylinders.

[0040] Work style:

[0041] In the initial state, such as Figure 1 As shown, the inner frame 14 is horizontal, and as... Figure 4 As shown, the jacking pipe 16 is on the pipe rack 15. Figure 5 This is used to separately display the top tube 16 and the tube frame 15. Pushers 6 are placed on the top tube 16. Initially, the area of ​​the polishing wheel 22 not covered by the guard plate 221 is located above one pusher 6. The pusher 6 is located within the inner frame 14, near a corner of the inner frame 14. Therefore, it can be seen that the sliding end of the first linear mechanism 11 is currently closer to the switching unit 3, and... Figure 1 or Figure 2 The slider 133 shown does not extend far beyond the through slot.

[0042] Next, the vacuum pump 23 is started. By pumping air, the movement of the tappet 6 is made more stable, thus solving the problem of inconsistent contact force between the tappet 6 and the polishing wheel 22 during polishing. The connecting pipe 25 is raised by the third linear mechanism 26 and enters the vertical hole 143. Furthermore, the top pipe 16 is pushed upward. Since the outer circumference of the top pipe 16 abuts against the inner circumference of the bottom opening 62, and air is being pumped out of the pipe, and the pipe frame 15 and the top pipe 16 are in a sliding fit, the tappet 6 is more stable when it rises. The tappet 6 contacts the polishing wheel 22 and is then polished. Then the tappet is lowered, and the top pipe 16 returns to the pipe frame 15. Then the pumping is stopped.

[0043] Similarly, the other pushers 6 are moved to the polishing position in sequence by the first linear mechanism 11 and the second linear mechanism 12 for polishing, until the end faces of all pushers 6 are polished.

[0044] Then, the outer frame 13 is moved by the second linear mechanism 12 so that the square plate 141 can correspond to the receiving groove 35. Then, the outer frame 13 is moved by the first linear mechanism 11 so that the square plate 141 is inserted into the receiving groove 35. Then, the inner frame 14 is raised a short distance by the fourth linear mechanism 33 and separated from the outer frame 13. Then, the inner frame 14 is rotated to a vertical position by the second rotary motor 31.

[0045] Then, the fifth linear mechanism 41 brings one end of the clamping assembly close to each pusher 6, and the two sixth linear mechanisms 43 clamp the pusher 6 with the paired clamping blocks 46. Then, the fifth linear mechanism 41 moves each pusher 6 out. Preferably, as mentioned above, the pipe rack 15 is made of rubber, the jacking pipe 16 is made of metal, and the pusher 6 is also metal. This makes it less likely that the jacking pipe 16 will be pulled out from the outer periphery of the pipe rack 15 at the same time when the pusher 6 is moved out.

[0046] Then, the clamping assembly is rotated 180° by the third rotary motor 42, the operator opens the door of the coating chamber 51, and then pushes each pusher 6 onto each placement rod 53 by the fifth linear mechanism 41 to prepare for coating. Then, the clamping assembly is removed, the door of the coating chamber 51 is closed, and coating is carried out.

[0047] After the coating is completed, open the door of the coating chamber 51 and follow the steps above to remove each pusher 6, and then remove the pusher 6.

[0048] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A surface treatment device for tappets, located at one end of a coating machine (5), characterized in that the device... include: The transfer unit (1) includes a first linear mechanism (11), a second linear mechanism (12) at its sliding end, an outer frame (13) at the output end of the second linear mechanism (12), a square opening (131) at one end of the outer frame (13) facing the coating machine (5), an inner frame (14) inside the outer frame (13), a square plate (141) passing through the square opening (131) at one end of the inner frame (14), and a grid plate (141) on the inner side of the inner frame (14). 142), vertical holes (143) are provided at each vertical intersection of the grid plate (142). A pipe rack (15) is provided above the vertical holes (143) and is connected to it and located on the upper end face of the grid plate (142). A jacking pipe (16) is installed on the pipe rack (15). When the pusher (6) is placed, the outer periphery of the jacking pipe (16) abuts against the inner periphery of the bottom opening (62) of the pusher (6). A ring opening matching the pipe rack (15) is provided at the lower end of the jacking pipe (16). The polishing unit (2) includes a polishing component located above the transfer unit (1) and a top material component located below the transfer unit (1). The polishing component is used to polish the end face of a single pusher (6). The top material component is used to lift the single pusher (6) upward so that it contacts the polishing component. The top material component is equipped with a vacuum pump (23). The suction end of the vacuum pump (23) is equipped with a connecting pipe (24), which includes a horizontal part and a 90° bend. The upper end of the 90° bend is connected to a telescopic hose (241). The upper end of the telescopic hose (241) is equipped with a vertical pipe (242). The upper end of the vertical pipe (242) is equipped with a connecting pipe (25) for passing through the vertical hole (143) upward. The top material component also includes a vertically arranged third linear mechanism (26). The upper end of its output shaft is equipped with a connecting plate (27). One end of the connecting plate (27) is fixed to the outer periphery of the vertical pipe (242). The switching unit (3) is located at one end of the transfer unit (1) and is used to transfer each pusher (6) between the inner frame (14) and the loading and unloading unit (4); The loading and unloading unit (4) is located at one end of the switching unit (3) and includes a fifth linear mechanism (41) arranged parallel to the first linear mechanism (11). The sliding end of the fifth linear mechanism (41) is vertically provided with a third rotary motor (42). The upper end of the output shaft of the third rotary motor (42) is provided with a clamping assembly for simultaneously clamping each pusher (6).

2. The tappet surface treatment equipment according to claim 1, characterized in that, The first linear mechanism (11) has a sliding groove (17) parallel to it on one side. The sliding groove (17) has a through groove on its side. The outer frame (13) is located between the first linear mechanism (11) and the sliding groove (17). The outer frame (13) has a slider (133) passing through the through groove on one side.

3. The tappet surface treatment equipment according to claim 1, characterized in that, The lower end of the outer frame (13) is provided with a spiral plate (132), and the inner frame (14) is mounted on the spiral plate (132).

4. The tappet surface treatment equipment according to claim 1, characterized in that, The pipe rack (15) is made of rubber, and the jacking pipe (16) is made of metal.

5. The tappet surface treatment equipment according to claim 1, characterized in that, The polishing assembly includes a vertically arranged first rotary motor (21), with a polishing wheel (22) at the lower end of its output end.

6. The tappet surface treatment equipment according to claim 1, characterized in that, The switching unit (3) includes a second rotary motor (31), one end of which is provided with a fourth linear mechanism (33), one end of which is provided with a receiving block (34), and one end of the receiving block (34) is provided with a receiving groove (35) that matches the square plate (141).

7. The tappet surface treatment equipment according to claim 1, characterized in that, The clamping assembly includes an F-shaped frame (421), with a sixth linear mechanism (43) with opposite output directions at one end of each of its two horizontal sides. A lifting plate (431) is provided at one end of the output shaft of the sixth linear mechanism (43). A rotating plate (432) is provided at one end of the lifting plate (431) and perpendicular to it. A vertical plate (44) is provided at one end of the rotating plate (432). Multiple horizontal plates (441) are provided on one side of the vertical plate (44) along the vertical direction. Multiple extension plates (45) are provided on one side of the horizontal plate (441). A clamping block (46) is provided at one end of the extension plate (45). An arc groove (47) matching the outer periphery of the pusher (6) is opened on the upper or lower end surface of the clamping block (46).

8. The tappet surface treatment equipment according to claim 7, characterized in that, Each clamping block (46) connected to each extension plate (45) on one side of a vertical plate (44) has an arc groove (47) on its upper end face, and each clamping block (46) connected to each extension plate (45) on one side of another vertical plate (44) has an arc groove (47) on its lower end face. The clamping blocks (46) with arc grooves (47) on their upper end face and the clamping blocks (46) with arc grooves (47) on their lower end face are arranged in pairs to clamp the pusher (6).

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