Machine tool for polishing main journal of crankshaft

Abstract

The utility model relates to the technical field of crankshaft machining devices, and provides a machine tool for polishing a main journal of a crankshaft, which comprises a machine room, and sliding chutes are transversely formed in the inner walls of the front end and the rear end of the machine room; according to the crankshaft polishing device, through the arrangement of a sliding groove, a first threaded rod, a mounting disc, a first mounting groove, a first two-way lead screw, a sliding block, an arc clamping plate, a second mounting groove, a second two-way lead screw and the like, the crankshaft polishing device can clamp crankshafts with different lengths and different diameter sizes, so that the stability is higher when the crankshafts are polished; in addition, in the device, through the arrangement of a collecting bin, a collecting box, a dust collecting cover, a dust washing fan and a dust collecting box, dust of products in the polishing process can be effectively collected, overflowing dust is reduced, and the environment is protected. Therefore, potential safety hazards caused by overflowing dust to operators are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of crankshaft processing equipment, specifically to a machine tool for polishing the main journal of a crankshaft. Background Technology

[0002] Because crankshaft products have high requirements for the roughness of the main journal, the horizontality of the shaft diameter, and the contact surface, after the main journals are precision machined with cutting tools, they need to be polished to make the product quality better meet the requirements.

[0003] However, many polishing processes for crankshaft journals are performed manually. Manual polishing is not only time-consuming and labor-intensive, but also cannot guarantee the quality of the finished crankshaft after polishing.

[0004] To address these issues, this invention proposes a machine tool for polishing the main journal of a crankshaft. Utility Model Content

[0005] This utility model proposes a machine tool for polishing the main journal of a crankshaft. By setting up a sliding groove, a first threaded rod, a mounting plate, a first mounting groove, a first bidirectional lead screw, a slider, an arc-shaped clamping plate, a second mounting groove, and a second bidirectional lead screw, this device can clamp crankshafts of different sizes, making the polishing process of the crankshaft more stable and ensuring the quality of the finished product after the crankshaft polishing process to a certain extent, thereby solving the above-mentioned problems.

[0006] The technical solution of this utility model is as follows: A machine tool for polishing the main journal of a crankshaft includes a machine housing. Slide grooves are transversely formed on the inner walls at both ends of the machine housing. A first threaded rod is rotatably installed inside each slide groove. A fixed plate is provided inside the machine housing. Connecting plates are fixedly installed at both ends of the fixed plate. The other end of each connecting plate is slidably connected to the slide groove at a corresponding position and threadedly connected to the first threaded rod at the corresponding position. Mounting discs are rotatably installed on the inner wall of the right side of the machine housing and the outer wall of the left side of the fixed plate. A first mounting groove is longitudinally formed on the side of each set of mounting discs that is close to each other. A first bidirectional lead screw is rotatably installed inside each of the first mounting slots. A second mounting slot is vertically opened on the side of each of the two sets of first mounting slots that are far apart from each other. A second bidirectional lead screw is rotatably installed inside each of the two sets of second mounting slots. A groove is opened at the front end and the top end of each of the two sets of mounting plates. The front end of each of the two sets of first bidirectional lead screws and the top end of each of the two sets of second bidirectional lead screws extend into the groove at the corresponding position and are fixedly installed with an internal hexagonal rotating head. A first motor is fixedly installed on the outer wall of the right side of the fixing plate. A drive shaft is fixedly installed at the output end of the first motor. The other end of the drive shaft is fixedly connected to the mounting plate at the corresponding position.

[0007] Preferably, sliders are symmetrically slidably installed inside the two sets of first mounting slots and the two sets of second mounting slots. A circular arc clamp is fixedly installed on each set of sliders. The two sets of first bidirectional lead screws and the two sets of second bidirectional lead screws are threadedly connected to the sliders at corresponding positions. Anti-slip textures are provided on each set of circular arc clamps.

[0008] Preferably, the right sides of both sets of the first threaded rods extend to the outside of the machine compartment, and each set is fixedly equipped with a toothed pulley. A toothed synchronous belt is installed between the two sets of toothed pulleys and is connected by the toothed synchronous belt. A second motor is fixedly installed on the left outer wall of the machine compartment, and the output end of the second motor is fixedly connected to one of the sets of the first threaded rods.

[0009] Preferably, the top of the machine compartment has a through groove, a mounting plate is slidably installed inside the through groove, a second threaded rod is rotatably installed inside the through groove, the mounting plate is threadedly connected to the second threaded rod, a guide rod is also fixedly installed inside the through groove, the mounting plate is slidably connected to the guide rod, a third motor is fixedly installed on the outer wall of the right side of the machine compartment, the output end of the third motor is fixedly connected to the second threaded rod, a cylinder is fixedly installed on the top of the mounting plate, a telescopic rod is fixedly installed on the output end of the cylinder, and the other end of the telescopic rod is fixedly installed on the polishing machine body.

[0010] Preferably, a collection compartment is fixedly installed at the bottom of the machine compartment and is connected to the machine compartment. A collection box is slidably installed inside the collection compartment, and a first handle is fixedly installed on the outer wall of the front end of the collection box.

[0011] Preferably, a door is rotatably installed at the left edge of the front end of the cabin, a second handle is fixedly installed on the outer wall of the front end of the door, and an observation window is fixedly installed on the door.

[0012] Preferably, a dust collection hood is fixedly installed on the inner wall of the rear end of the machine compartment, a support plate is fixedly installed on the outer wall of the rear end of the machine compartment, a dust collection fan is fixedly installed on the left side of the top of the support plate, a dust collection box is fixedly installed on the right side of the top of the support plate, a first connecting pipe is sealed to the input end of the dust collection fan, the other end of the first connecting pipe is sealed to the dust collection hood, a second connecting pipe is sealed to the output end of the dust collection fan, and the other end of the second connecting pipe extends into the interior of the dust collection box.

[0013] Preferably, rubber pads are fixedly installed at the four corners of the bottom of the hull.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] In this device, the arrangement of a sliding groove, a first threaded rod, a mounting plate, a first mounting groove, a first bidirectional lead screw, a slider, an arc-shaped clamping plate, a second mounting groove, and a second bidirectional lead screw enables the device to clamp crankshafts of different lengths and diameters, resulting in greater stability during crankshaft polishing and ensuring the quality of the finished product to a certain extent. Furthermore, the inclusion of a collection chamber, collection box, dust hood, dust-collecting fan, and dust collection bin effectively collects dust generated during the polishing process, reducing dust spillage and thus mitigating safety hazards to operators. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the present invention.

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the rear view structure of this utility model.

[0022] In the diagram: 1. Machine compartment; 2. Slide groove; 3. First threaded rod; 4. Fixing plate; 5. Connecting plate; 6. Mounting plate; 7. First mounting groove; 8. First double-acting screw; 9. Slider; 10. Arc clamping plate; 11. Second mounting groove; 12. Second double-acting screw; 13. Groove; 14. Hexagonal swivel head; 15. First motor; 16. Toothed pulley; 17. Toothed synchronous belt; 18. Second motor; 19. Through groove; 20. Mounting plate; 21. Second threaded rod; 22. Guide rod; 23. Third motor; 24. Cylinder; 25. Telescopic rod; 26. Polishing machine body; 27. Collection chamber; 28. Collection box; 29. ​​First handle; 30. Dust collection hood; 31. Support plate; 32. Dust suction fan; 33. Dust collection box; 34. Chamber door; 35. Second handle; 36. Observation window; 37. Rubber pad. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] like Figures 1-5 As shown, this embodiment proposes a machine tool for polishing the main journal of a crankshaft, including a machine compartment 1. Slide grooves 2 are transversely formed on the inner walls of both the front and rear ends of the machine compartment 1. A first threaded rod 3 is rotatably installed inside each slide groove 2. A fixing plate 4 is disposed inside the machine compartment 1. Connecting plates 5 are fixedly installed on both the front and rear ends of the fixing plate 4. The other end of each connecting plate 5 is slidably connected to the slide groove 2 at the corresponding position and threadedly connected to the first threaded rod 3 at the corresponding position. Mounting discs 6 are rotatably installed on the inner right wall of the machine compartment 1 and the outer left wall of the fixing plate 4. A first mounting groove 7 is longitudinally formed on the side of the two sets of mounting discs 6 that are close to each other. The two sets of first mounting grooves 7 contain... Each of the two sets of mounting plates 6 is rotatably mounted with a first bidirectional lead screw 8. Each of the two sets of first mounting slots 7 has a second mounting slot 11 vertically opened on the side away from each other. Each of the two sets of second mounting slots 11 is rotatably mounted with a second bidirectional lead screw 12. Each of the two sets of mounting plates 6 has a groove 13 opened at the front end and the top end of each of the two sets of first bidirectional lead screws 8 and the top end of each of the two sets of second bidirectional lead screws 12. Both of them are fixedly mounted with an internal hexagonal rotating head 14. A first motor 15 is fixedly mounted on the outer wall of the right side of the fixing plate 4. A drive shaft is fixedly mounted on the output end of the first motor 15. The other end of the drive shaft is fixedly connected to the mounting plate 6 at the corresponding position.

[0026] Two sets of first mounting slots 7 and two sets of second mounting slots 11 are symmetrically fitted with sliders 9. Each set of sliders 9 is fixedly fitted with an arc-shaped clamping plate 10. Two sets of first bidirectional lead screws 8 and two sets of second bidirectional lead screws 12 are threaded to the sliders 9 at the corresponding positions. Each set of arc-shaped clamping plates 10 is provided with anti-slip texture.

[0027] Both sets of first threaded rods 3 extend to the outside of the machine compartment 1 on the right side and are fixedly installed with toothed pulleys 16. A toothed synchronous belt 17 is installed between the two sets of toothed pulleys 16 and is connected by transmission through the toothed synchronous belt 17. A second motor 18 is fixedly installed on the outer wall of the left side of the machine compartment 1, and the output end of the second motor 18 is fixedly connected to one of the sets of first threaded rods 3.

[0028] The top of the machine compartment 1 has a through groove 19, and an installation plate 20 is slidably installed inside the through groove 19. A second threaded rod 21 is rotatably installed inside the through groove 19. The installation plate 20 is threadedly connected to the second threaded rod 21. A guide rod 22 is also fixedly installed inside the through groove 19. The installation plate 20 is slidably connected to the guide rod 22. A third motor 23 is fixedly installed on the outer wall of the right side of the machine compartment 1. The output end of the third motor 23 is fixedly connected to the second threaded rod 21. A cylinder 24 is fixedly installed at the top of the installation plate 20. A telescopic rod 25 is fixedly installed at the output end of the cylinder 24. The other end of the telescopic rod 25 is fixedly installed with the polishing machine body 26.

[0029] A collection compartment 27 is fixedly installed at the bottom of the machine compartment 1 and is connected to the machine compartment 1. A collection box 28 is slidably installed inside the collection compartment 27. A first handle 29 is fixedly installed on the outer wall of the front end of the collection box 28.

[0030] A door 34 is rotatably installed at the left edge of the front end of the cabin 1. A second handle 35 is fixedly installed on the outer wall of the front end of the door 34, and an observation window 36 is fixedly installed on the door 34.

[0031] In this embodiment, when using this device, the operator first starts the second motor 18 to rotate the first threaded rod 3. Since the toothed pulleys 16 fixedly installed on both sets of first threaded rods 3 are connected by a toothed synchronous belt 17, the fixed plate 4 can be moved horizontally, thus satisfying the clamping of crankshafts of different lengths. Then, the operator can rotate the internal hexagonal rotating head 14 to rotate the first double-acting lead screw 8 and the second double-acting lead screw 12, thereby driving the arc-shaped clamping plate 10 to clamp and fix the crankshaft from four directions. This satisfies the clamping of crankshafts of different diameters and ensures the stability of the clamping. It also ensures the quality of the finished product after the crankshaft is polished to a certain extent. After the crankshaft is clamped and fixed, the operator can start the third motor 23, cylinder 24 and polishing machine body 26 to polish different positions of the crankshaft, thus making the device more practical.

[0032] Example 2

[0033] like Figures 1-5 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that a dust collection hood 30 is fixedly installed on the inner wall of the rear end of the machine compartment 1, a support plate 31 is fixedly installed on the outer wall of the rear end of the machine compartment 1, a dust suction fan 32 is fixedly installed on the left side of the top of the support plate 31, a dust collection box 33 is fixedly installed on the right side of the top of the support plate 31, a first connecting pipe is sealed to the input end of the dust suction fan 32, the other end of the first connecting pipe is sealed to the dust collection hood 30, a second connecting pipe is sealed to the output end of the dust suction fan 32, and the other end of the second connecting pipe extends into the interior of the dust collection box 33.

[0034] Rubber pads 37 are fixedly installed at the four corners of the bottom of the nacelle 1.

[0035] In this embodiment, when the crankshaft main journal is polished by this device, the operator can start the dust extraction fan 32 to effectively collect the dust produced during the polishing process, reducing the amount of dust that spills out and thus reducing the safety hazards caused by the spilled dust to the operator. At the same time, the collection chamber 27 and the collection box 28 can collect large dust particles that are not sucked up by the dust extraction fan 32, thereby further improving the practicality of this device.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A machine tool for polishing the main journal of a crankshaft, characterized in that, The machine includes a nacelle (1), on which the inner walls at both ends of the nacelle (1) are horizontally provided with sliding grooves (2), and each set of sliding grooves (2) is rotatably installed with a first threaded rod (3). A fixing plate (4) is provided inside the nacelle (1), and connecting plates (5) are fixedly installed at both ends of the fixing plate (4). The other end of each set of connecting plates (5) is slidably connected to the sliding groove (2) at the corresponding position, and is threadedly connected to the first threaded rod (3) at the corresponding position. Mounting discs (6) are rotatably installed on the inner wall of the right side of the nacelle (1) and the outer wall of the left side of the fixing plate (4). The two sets of mounting discs (6) are longitudinally provided with a first mounting groove (7) on the side of each other. Each set of first mounting grooves (7) is rotatably installed with a first threaded rod (3). A double-acting screw (8) is provided. Two sets of first mounting slots (7) are vertically provided on the side away from each other. Two sets of second mounting slots (11) are rotatably installed with second double-acting screws (12). The front end and top end of the two sets of mounting discs (6) are provided with grooves (13). The front end of the two sets of first double-acting screws (8) and the top end of the two sets of second double-acting screws (12) extend into the grooves (13) at the corresponding positions and are fixedly installed with internal hexagonal rotating heads (14). A first motor (15) is fixedly installed on the outer wall of the right side of the fixing plate (4). The output end of the first motor (15) is fixedly installed with a drive shaft. The other end of the drive shaft is fixedly connected to the mounting disc (6) at the corresponding position.

2. The machine tool for polishing the main journal of a crankshaft according to claim 1, characterized in that, Two sets of first mounting slots (7) and two sets of second mounting slots (11) are symmetrically mounted with sliders (9). Each set of sliders (9) is fixedly mounted with an arc-shaped clamp (10). Two sets of first bidirectional screws (8) and two sets of second bidirectional screws (12) are threaded to the sliders (9) at the corresponding positions. Each set of arc-shaped clamps (10) is provided with anti-slip texture.

3. The machine tool for polishing the main journal of a crankshaft according to claim 1, characterized in that, Both sets of the first threaded rods (3) extend to the outside of the machine compartment (1) on the right side and are fixedly installed with toothed pulleys (16). A toothed synchronous belt (17) is installed between the two sets of toothed pulleys (16) and is connected by transmission through the toothed synchronous belt (17). A second motor (18) is fixedly installed on the outer wall of the left side of the machine compartment (1). The output end of the second motor (18) is fixedly connected to one of the sets of the first threaded rods (3).

4. The machine tool for polishing the main journal of a crankshaft according to claim 1, characterized in that, The top of the machine compartment (1) is provided with a through groove (19), and an installation plate (20) is slidably installed inside the through groove (19). A second threaded rod (21) is rotatably installed inside the through groove (19). The installation plate (20) is threadedly connected to the second threaded rod (21). A guide rod (22) is also fixedly installed inside the through groove (19). The installation plate (20) is slidably connected to the guide rod (22). A third motor (23) is fixedly installed on the outer wall of the right side of the machine compartment (1). The output end of the third motor (23) is fixedly connected to the second threaded rod (21). A cylinder (24) is fixedly installed at the top of the installation plate (20). A telescopic rod (25) is fixedly installed at the output end of the cylinder (24). The other end of the telescopic rod (25) is fixedly installed with the polishing machine body (26).

5. A machine tool for polishing the main journal of a crankshaft according to claim 1, characterized in that, A collection bin (27) is fixedly installed at the bottom of the machine compartment (1) and is connected to the machine compartment (1). A collection box (28) is slidably installed inside the collection bin (27), and a first handle (29) is fixedly installed on the outer wall of the front end of the collection box (28).

6. The machine tool for polishing the main journal of a crankshaft according to claim 1, characterized in that, A door (34) is rotatably installed at the left edge of the front end of the cabin (1). A second handle (35) is fixedly installed on the outer wall of the front end of the door (34). An observation window (36) is fixedly installed on the door (34).

7. A machine tool for polishing the main journal of a crankshaft according to claim 1, characterized in that, A dust collection hood (30) is fixedly installed on the inner wall of the rear end of the machine compartment (1), and a support plate (31) is fixedly installed on the outer wall of the rear end of the machine compartment (1). A dust collection fan (32) is fixedly installed on the left side of the top end of the support plate (31), and a dust collection box (33) is fixedly installed on the right side of the top end of the support plate (31). The input end of the dust collection fan (32) is sealed with a first connecting pipe, and the other end of the first connecting pipe is sealed with the dust collection hood (30). The output end of the dust collection fan (32) is sealed with a second connecting pipe, and the other end of the second connecting pipe extends into the interior of the dust collection box (33).

8. A machine tool for polishing the main journal of a crankshaft according to claim 1, characterized in that, Rubber pads (37) are fixedly installed at the four corners of the bottom of the cabin (1).

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