A smoothness testing device for machining plunger assemblies

Abstract

This utility model discloses a smoothness detection device for plunger assembly processing, relating to the field of plunger assembly processing technology. The device includes a fixed frame, with a first movable plate on one side of the fixed frame. The first movable plate is connected to the side wall of the fixed frame via a first adjusting mechanism. A second movable plate is mounted on the first movable plate, connected to the first movable plate via a second adjusting mechanism. A third movable plate is mounted on the second movable plate, connected to the second movable plate via a third adjusting mechanism. The first adjusting mechanism can adjust the height of the smoothness detector, the second adjusting mechanism can adjust the smoothness detector forward and backward, and the third adjusting mechanism can adjust the smoothness detector laterally, improving the flexibility of the smoothness detector, enabling all-around detection, and improving the detection effect.

Description

Technical Field

[0001] This utility model relates to the field of plunger assembly processing technology, specifically a smoothness detection device for plunger assembly processing. Background Technology

[0002] The working principle of a plunger assembly mainly involves the plunger, driven by the camshaft, achieving the processes of oil intake, pumping, and return through the action of the plunger spring. The design of the plunger assembly involves the matching of precision components. For example, the fit clearance between the plunger and the plunger sleeve needs to be strictly controlled to ensure the efficiency and reliability of the fuel system. The delivery valve assembly, as a one-way valve, isolates the high-pressure fuel line from the upper cavity of the plunger when fuel supply is stopped, preventing fuel in the high-pressure fuel line from flowing back into the injection pump. Conventional plunger assemblies only include a plunger sleeve and a plunger core. The sealing performance of conventional plunger assemblies is tested using a pressure reduction pump calibration method.

[0003] When performing surface smoothness testing on existing plunger assemblies, the plunger assembly needs to be fixed in position before being tested by a smoothness detector. However, existing testing devices cannot be adapted to plunger assemblies of different sizes. Usually, it is necessary to change the testing device or use a handheld method for testing. Moreover, when testing the surface of high-precision plunger assemblies, it is often necessary to flip the parts, which is very inconvenient to use. Furthermore, the testing area is fixed, and it is not possible to perform all-round testing, which has significant limitations.

[0004] Based on this, a smoothness detection device for processing plunger assemblies is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a smoothness detection device for processing plunger components, so as to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A smoothness testing device for processing plunger assemblies includes a fixed frame, a worktable on the top of the fixed frame, symmetrical fixed plates on both sides of the worktable, an electric push rod on each fixed plate, a servo motor at the output end of the electric push rod, a clamping plate at the output end of the servo motor, a first movable plate on one side of the fixed frame connected to the side wall of the fixed frame via a first adjusting mechanism, a second movable plate on the first movable plate connected to the first movable plate via a second adjusting mechanism, and a third movable plate on the second movable plate connected to the second movable plate via a third adjusting mechanism.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative embodiment: the first adjusting mechanism includes a first fixing block, which is symmetrically arranged on the upper and lower sides of the side wall of the fixing frame. A first screw is rotatably connected between the first fixing blocks. One end of the first screw passes through the first fixing block and is provided with a first driven pulley. A first drive motor is provided inside the fixing frame. A first drive pulley is provided at the output end of the first drive motor. The first drive pulley and the first driven pulley transmit motion through a first transmission belt. A first connecting block is provided on one side of the first moving plate, and the first connecting block is rotatably connected to the first screw by a thread.

[0010] In one alternative: the sidewall of the fixing frame is provided with symmetrical first guide rails on both sides of the first fixing block, and the first sliding plate is provided with symmetrical first sliders on one side, and the first sliders are slidably connected on the first guide rails.

[0011] In one alternative embodiment: the second adjusting mechanism includes a second fixed block, which is symmetrically arranged on the front and rear sides of the first movable plate. A second screw is rotatably connected between the second fixed blocks. One end of the second screw passes through the second fixed block and is provided with a second driven pulley. A second drive motor is provided at the bottom of the first movable plate. A second drive pulley is provided at the output end of the second drive motor. The second drive pulley and the second driven pulley transmit motion through a second transmission belt. A second connecting block is provided at the bottom of the second movable plate, and the second connecting block is rotatably connected to the second screw by a thread.

[0012] In one alternative: the top of the first movable plate is provided with symmetrical second guide rails on both sides of the second fixed block, and the bottom of the second movable plate is provided with symmetrical second sliders, which are slidably connected on the second guide rails.

[0013] In one alternative embodiment: the third adjusting mechanism includes a third fixed block, which is symmetrically arranged on the left and right sides of the second movable plate. A third screw is rotatably connected between the third fixed blocks. One end of the third screw passes through the third fixed block and is provided with a third driven pulley. A third drive motor is provided at the bottom of the second movable plate. A third drive pulley is provided at the output end of the third drive motor. The third drive pulley and the third driven pulley transmit motion through a third transmission belt. A third connecting block is provided at the bottom of the third movable plate, and the third connecting block is rotatably connected to the third screw via a thread.

[0014] In one alternative: symmetrical third guide rails are provided on both sides of the third fixed block on the second movable plate, symmetrical third sliders are provided at the bottom of the third movable plate, and the third sliders are slidably connected on the third guide rails, and a smoothness detector is provided at the outer end of the third movable plate.

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

[0016] This invention uses an electric push rod to drive the clamping plate to move relative to each other, clamping and fixing the plunger assembly. A servo motor can drive the plunger assembly to rotate, improving the detection effect. The first adjustment mechanism can adjust the height of the smoothness detector, the second adjustment mechanism can adjust the smoothness detector forward and backward, and the third adjustment mechanism can adjust the smoothness detector laterally, improving the flexibility of the smoothness detector, enabling all-round detection and improving the detection effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of one side of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall structure of the other side of this utility model.

[0019] Figure 3 This is a schematic diagram of one side of the fixing frame of this utility model.

[0020] Figure 4 This is a partial structural schematic diagram of the present invention.

[0021] Figure reference numerals: 1. Fixed frame; 2. Worktable; 3. Fixed plate; 4. Electric push rod; 5. Servo motor; 6. Clamping plate; 7. First fixed block; 8. First screw; 9. First driven pulley; 10. First drive motor; 11. First driving pulley; 12. First transmission belt; 13. First guide rail; 14. First moving plate; 15. First connecting block; 16. First slider; 17. Second fixed block; 18. Second screw; 19. Second guide rail; 20. ... 21. Second drive motor; 22. Second driven pulley; 23. Second transmission belt; 24. Second moving plate; 25. Second connecting block; 26. Second slider; 27. Third fixed block; 28. Third screw; 29. ​​Third guide rail; 30. Third drive motor; 31. Third drive pulley; 32. Third driven pulley; 33. Third transmission belt; 34. Third moving plate; 35. Third connecting block; 36. Third slider; 37. Smoothness detector. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In one embodiment, such as Figures 1-4 As shown, a smoothness testing device for processing plunger components includes a fixed frame 1, a worktable 2 on the top of the fixed frame 1, symmetrical fixed plates 3 on both sides of the worktable 2, an electric push rod 4 on the fixed plate 3, a servo motor 5 at the output end of the electric push rod 4, a clamping plate 6 at the output end of the servo motor 5, a first movable plate 14 on one side of the fixed frame 1, the first movable plate 14 being connected to the side wall of the fixed frame 1 via a first adjusting mechanism, a second movable plate 24 on the first movable plate 14, the second movable plate 24 being connected to the first movable plate 14 via a second adjusting mechanism, and the second movable plate 24... A third movable plate 34 is provided on the second movable plate 24. The third movable plate 34 is connected to the second movable plate 24 through a third adjustment mechanism. The electric push rod 4 can drive the clamping plate 6 to move relative to each other and clamp and fix the plunger assembly. The servo motor 5 can drive the plunger assembly to rotate by an angle to improve the detection effect. The first adjustment mechanism can adjust the height of the smoothness detector 37, the second adjustment mechanism can adjust the smoothness detector 37 back and forth, and the third adjustment mechanism can adjust the smoothness detector 37 laterally to improve the flexibility of the smoothness detector 37, enabling all-round detection and improving the detection effect.

[0024] In one embodiment, such as Figure 2 and Figure 3 As shown, the first adjustment mechanism includes a first fixed block 7, which is symmetrically arranged on the upper and lower sides of the side wall of the fixed frame 1. A first screw 8 is rotatably connected between the first fixed blocks 7. One end of the first screw 8 passes through the first fixed block 7 and is provided with a first driven pulley 9. A first drive motor 10 is provided inside the fixed frame 1. A first drive pulley 11 is provided at the output end of the first drive motor 10. The first drive pulley 11 and the first driven pulley 9 transmit motion through a first transmission belt 12. A first connecting block 15 is provided on one side of the first moving plate 14, and the first connecting block 15 is threadedly rotatably connected to the first screw 8. Starting the first drive motor 10 can drive the first moving plate 14 to move up and down to adjust the height.

[0025] In one embodiment, such as Figure 3 As shown, the sidewall of the fixed frame 1 is provided with symmetrical first guide rails 13 on both sides of the first fixed block 7, and the first movable plate 14 is provided with symmetrical first sliders 16 on one side, and the first sliders 16 are slidably connected on the first guide rails 13, and the first movable plate 14 can move along the first guide rails 13.

[0026] In one embodiment, such as Figure 2 and Figure 4 As shown, the second adjustment mechanism includes a second fixed block 17, which is symmetrically arranged on the front and rear sides of the first moving plate 14. A second screw 18 is rotatably connected between the second fixed blocks 17. One end of the second screw 18 passes through the second fixed block 17 and is provided with a second driven pulley 22. A second drive motor 20 is provided at the bottom of the first moving plate 14. A second drive pulley 21 is provided at the output end of the second drive motor 20. The second drive pulley 21 and the second driven pulley 22 transmit motion through a second transmission belt 23. A second connecting block 25 is provided at the bottom of the second moving plate 24, and the second connecting block 25 is threadedly rotatably connected to the second screw 18. Starting the second drive motor 20 can drive the second moving plate 24 to move back and forth, expanding the detection range.

[0027] In one embodiment, such as Figure 4 As shown, the top of the first movable plate 14 is provided with symmetrical second guide rails 19 on both sides of the second fixed block 17, and the bottom of the second movable plate 24 is provided with symmetrical second sliders 26, and the second sliders 26 are slidably connected on the second guide rails 19, so that the second movable plate 24 can move on the second guide rails 19.

[0028] In one embodiment, such as Figure 4 As shown, the third adjustment mechanism includes a third fixed block 27, which is symmetrically arranged on the left and right sides of the second moving plate 24. A third screw 28 is rotatably connected between the third fixed blocks 27. One end of the third screw 28 passes through the third fixed block 27 and is provided with a third driven pulley 32. A third drive motor 30 is provided at the bottom of the second moving plate 24. A third drive pulley 31 is provided at the output end of the third drive motor 30. The third drive pulley 31 and the third driven pulley 32 transmit motion through a third transmission belt 33. A third connecting block 35 is provided at the bottom of the third moving plate 34, and the third connecting block 35 is threadedly rotatably connected to the third screw 28. Starting the third drive motor 30 can drive the third moving plate 34 to move laterally, thereby adjusting the distance between the smoothness detector 37 and the plunger assembly and improving the detection effect.

[0029] In one embodiment, such as Figure 4 As shown, the second movable plate 24 is provided with symmetrical third guide rails 29 on both sides of the third fixed block 27, the bottom of the third movable plate 34 is provided with symmetrical third sliders 36, and the third sliders 36 are slidably connected on the third guide rails 29. The outer end of the third movable plate 34 is provided with a smoothness detector 37, and the third movable plate 34 can move on the third guide rails 29.

[0030] Working principle: When in use, starting the electric push rod 4 can drive the clamping plate 6 to move relative to each other, clamping and fixing the plunger assembly. The servo motor 5 can drive the plunger assembly to rotate, improving the detection effect. Starting the first drive motor 10 can drive the first moving plate 14 to move up and down for height adjustment. Starting the second drive motor 20 can drive the second moving plate 24 to move back and forth, expanding the detection range. Starting the third drive motor 30 can drive the third moving plate 34 to move laterally, thereby adjusting the distance between the smoothness detector 37 and the plunger assembly. This not only improves the flexibility of the smoothness detector 37, but also enables all-round detection, improving the detection effect.

Claims

1. A smoothness detection device for processing a plunger pair, comprising a fixing frame (1), characterized in that, The top of the fixed frame (1) is provided with a workbench (2), and the workbench (2) is provided with symmetrical fixed plates (3) on both sides. The fixed plates (3) are provided with electric push rods (4), the output end of the electric push rods (4) is provided with a servo motor (5), the output end of the servo motor (5) is provided with a clamping plate (6), the fixed frame (1) is provided with a first moving plate (14) on one side, the first moving plate (14) is connected to the side wall of the fixed frame (1) through a first adjustment mechanism, the first moving plate (14) is provided with a second moving plate (24), the second moving plate (24) is connected to the first moving plate (14) through a second adjustment mechanism, the second moving plate (24) is provided with a third moving plate (34), the third moving plate (34) is connected to the second moving plate (24) through a third adjustment mechanism.

2. The apparatus for detecting the smoothness of a plunger pair for processing according to claim 1, wherein The first adjustment mechanism includes a first fixed block (7), which is symmetrically arranged on the upper and lower sides of the side wall of the fixed frame (1). A first screw (8) is rotatably connected between the first fixed blocks (7). A first driven pulley (9) is provided through the first fixed block (7) at one end of the first screw (8). A first drive motor (10) is provided inside the fixed frame (1). A first driving pulley (11) is provided at the output end of the first drive motor (10). The first driving pulley (11) and the first driven pulley (9) transmit motion through a first transmission belt (12). A first connecting block (15) is provided on one side of the first moving plate (14), and the first connecting block (15) is rotatably connected to the first screw (8) by a thread.

3. The smoothness detection device for processing plunger assemblies according to claim 2, characterized in that, The sidewall of the fixed frame (1) is provided with symmetrical first guide rails (13) on both sides of the first fixed block (7), and the first sliding plate (14) is provided with symmetrical first sliders (16) on one side, and the first sliders (16) are slidably connected on the first guide rails (13).

4. The smoothness detection device for processing plunger assemblies according to claim 1, characterized in that, The second adjustment mechanism includes a second fixed block (17), which is symmetrically arranged on the front and rear sides of the first moving plate (14). A second screw (18) is rotatably connected between the second fixed blocks (17). A second driven pulley (22) is provided through the second fixed block (17) at one end of the second screw (18). A second drive motor (20) is provided at the bottom of the first moving plate (14). A second driving pulley (21) is provided at the output end of the second drive motor (20). The second driving pulley (21) and the second driven pulley (22) transmit motion through a second transmission belt (23). A second connecting block (25) is provided at the bottom of the second moving plate (24), and the second connecting block (25) is rotatably connected to the second screw (18) by a thread.

5. The smoothness detection device for processing plunger assemblies according to claim 4, characterized in that, The top of the first movable plate (14) is provided with symmetrical second guide rails (19) on both sides of the second fixed block (17), and the bottom of the second movable plate (24) is provided with symmetrical second sliders (26), and the second sliders (26) are slidably connected on the second guide rails (19).

6. The smoothness detection device for processing plunger assemblies according to claim 1, characterized in that, The third adjustment mechanism includes a third fixed block (27), which is symmetrically arranged on the left and right sides of the second moving plate (24). A third screw (28) is rotatably connected between the third fixed blocks (27). A third driven pulley (32) is provided through the third fixed block (27) at one end of the third screw (28). A third drive motor (30) is provided at the bottom of the second moving plate (24). A third driving pulley (31) is provided at the output end of the third drive motor (30). The third driving pulley (31) and the third driven pulley (32) transmit motion through a third transmission belt (33). A third connecting block (35) is provided at the bottom of the third moving plate (34), and the third connecting block (35) is rotatably connected to the third screw (28) by a thread.

7. The smoothness detection device for processing plunger assemblies according to claim 6, characterized in that, The second movable plate (24) is provided with symmetrical third guide rails (29) on both sides of the third fixed block (27). The bottom of the third movable plate (34) is provided with symmetrical third sliders (36), and the third sliders (36) are slidably connected on the third guide rails (29). The outer end of the third movable plate (34) is provided with a smoothness detector (37).

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