Cylindrical grinding machine for brake camshaft production
By designing an outer cylindrical grinder including servo motor, gear, passive turntable, suction cup and spring, the problems of unstable fixation of the camshaft and the impact of the grinding progress in the prior art are solved, and stable fixation and efficient grinding of the camshaft are achieved.
Patent Information
- Application Number
- CN202420133401.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-19
AI Technical Summary
When the existing cylindrical grinder grinder grinds, the fixing is unstable when grinding the camshaft, resulting in the camshaft being easily displaced, affecting the grinding accuracy. When it is necessary to grind the outer side of the cam, the device needs to constantly change its position, affecting the grinding progress.
A cylindrical grinder including shell, grinding equipment components, rotation limit support plate, hollow shaft ring, turntable, hand-rotating handle, double-solid bearing, limit movable groove, limit moment strip, torque plate, slide cylinder, suction cup, suction integrated fan and spring are designed. Through the coordination of the servo motor, gear and passive turntable, the fixing mechanism of suction cup and spring is used to achieve stable fixation and buffer protection of the camshaft, and the angle adjustment and uniform polishing of the camshaft are achieved through the rotation of the turntable.
It realizes stable fixation and buffer protection of the camshaft, prevents displacement, improves grinding accuracy and efficiency, and facilitates uniform grinding around the outer side of the camshaft.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of camshafts, in particular to an external cylindrical grinding machine for producing brake camshafts. Background Art
[0002] The brake cam is a primary component in a car engine. Its primary function is to control the opening and closing of the valve, and then ensure that the engine regularly inhales fresh combustible mixture into the cylinder when working, and discharges the exhaust gas from the cylinder in time. It is an indispensable core component of the engine. During the production process of the brake cam, its outer side needs to be polished, and the polishing process is often carried out on a cylindrical grinder.
[0003] If the camshaft cannot be stably fixed during the grinding process of the camshaft by the external cylindrical grinder, the camshaft is prone to displacement after the grinding device of the grinder contacts the camshaft, thereby affecting the grinding accuracy of the camshaft. However, the existing device clamps and fixes it with two limit blocks. Although it has a good fixing effect, it is necessary to grind the outer side of the cam during normal grinding, and the device needs to be constantly changed position, affecting the grinding progress. Therefore, in view of the above problem, an external cylindrical grinder for the production of brake camshafts is proposed. Utility Model Content
[0004] The purpose of the utility model is to provide an external cylindrical grinder for the production of brake camshafts, so as to solve the problem that the existing device clamps and fixes the camshaft by two limit blocks. Although it has a good fixing effect, it is necessary to grind the outer side of the cam during normal grinding, and the device needs to be constantly changed, which affects the grinding progress.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A cylindrical grinder for producing a brake camshaft comprises a shell and a grinding equipment assembly, wherein a grinding equipment assembly is arranged on one side of the shell, a limited rotation support plate is fixedly connected to one side of the shell, a hollow shaft ring is rotatably connected to the inner side of the limited rotation support plate, a turntable is fixedly connected to the inner side of the hollow shaft ring, a hand handle is rotatably connected to one side of the turntable, a double fixed bearing is fixedly connected to one side of the turntable, a limited position movable groove is arranged on the inner side of the limited position movable groove, a limited position rectangular strip is slidably connected to the inner side of the limited position rectangular strip, a rectangular plate is fixedly connected to one side of the limited rectangular strip, an air passage is arranged on the inner side of the rectangular plate, and a fixed plate is arranged on one side of the rectangular plate. A ventilation hose is fixedly connected, a spring is fixedly connected to the inner side of the rectangular plate, a sliding column cylinder is fixedly connected to one side of the spring, a sealing ring is fixedly connected to the outer side of one end of the sliding column cylinder, a suction cup is fixedly connected to one side of the sliding column cylinder, one end of the rectangular plate is rotatably connected to a double-rotation connecting rod through a bearing, one end of the double-rotation connecting rod is rotatably connected to a passive turntable through a bearing, a gear ring is fixedly connected to the outer side of the passive turntable, the outer side of the gear ring is meshed with the outer side of the gear, the inner side of the gear is fixedly connected to the outer side of the servo motor main shaft, a suction fan is fixedly connected to one side of the turntable, and one side of the suction cup is in contact with one side of the camshaft body.
[0007] Preferably, a limited rotation groove is opened on the inner side of one end of the limited rotation support plate, the hollow shaft ring is in the shape of a hollow cylinder, there are two limited rotation support plates, the turntable is in the shape of a hollow cylinder, and the turntable protrudes from one side of the limited rotation support plate.
[0008] Preferably, the number of the turntable and the hollow shaft ring are both two, the hollow shaft ring and the turntable are arranged on one side of the front end and the rear end of the shell, one side of the double fixed bearing is fixedly connected to one side of the passive turntable, the double fixed bearing is in the shape of a hollow cylinder, the number of the limiting movable grooves is several, the limiting movable groove is in the shape of a hollow cylinder, a limiting slide groove is opened inside the limiting movable groove, the limiting rectangular strip is in the shape of a rectangular body, and the rectangular body plate is slidably connected to the inner side of the limiting movable groove through the limiting rectangular strip.
[0009] Preferably, the inner side of the integrated suction fan is connected with the inner side of the ventilation hose through a turntable, a plurality of ventilation grooves are provided on the inner side of the turntable, the inner side of the ventilation hose is connected with the inner side of the air duct, the inner side of the air duct is connected with the inner side of the suction cup through a sliding column tube, and the sliding column tube is in the shape of a hollow cylinder.
[0010] Preferably, the outer side of the sliding column cylinder is slidably connected to the inner side of the air passage, the outer side of the sealing ring is fitted with the inner side of the air passage, the number of the rectangular plates is the same as the number of the limiting movable grooves, a cylindrical groove is opened on the inner side of one end of the limiting movable groove, the outer side of the sliding column cylinder slides in the cylindrical groove inside one end of the limiting movable groove, the suction cup protrudes from the inner side of the turntable, and the outer sides of both ends of the camshaft body move on the inner side of the turntable.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, through the set turntable, servo motor, gear, passive turntable, matrix plate, sliding column cylinder, suction cup, integrated suction fan and spring, when the device fixes the camshaft body, the servo motor is started to drive the passive turntable to rotate through the device, and the rotation of the passive turntable drives the sliding column cylinder and the suction cup to move through the device, and after the suction cup is fitted with the outer sides of the two ends of the camshaft body, the spring contracts, and the spring has a buffering effect on the fixation of the camshaft body, and the inside of the suction cup is evacuated by the integrated suction fan. At this time, the fixation is completed, and the turning handle can drive the camshaft body to rotate through the device, and the device can fix the camshaft body according to the diameter of the camshaft body, and can play a certain buffering effect in the fixing process to prevent damage to the camshaft body and the fixing device. At the same time, after the fixing is completed, it is convenient to rotate the angle of the camshaft body, so that the outer side of the camshaft body can be evenly polished around, thereby improving the efficiency of polishing the camshaft body. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the structure of the rotation-limiting support plate of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the hollow shaft ring of the utility model;
[0016] Figure 4 This is a schematic diagram of the turntable structure of the utility model;
[0017] Figure 5 This is a schematic diagram of the structure of the limit movable groove of the utility model;
[0018] Figure 6 This is a schematic diagram of the rectangular plate structure of the utility model;
[0019] Figure 7 This is a schematic diagram of the double-rotating connecting rod structure of the utility model.
[0020] In the figure: 1. Shell; 2. Grinding equipment assembly; 3. Rotation limiting support plate; 4. Hollow shaft ring; 5. Turntable; 6. Hand turning handle; 7. Double fixed bearing; 8. Limit movable groove; 9. Limit rectangular bar; 10. Matrix plate; 11. Air duct; 12. Air hose; 13. Spring; 14. Sliding column cylinder; 15. Sealing ring; 16. Suction cup; 17. Double rotation connecting rod; 18. Passive turntable; 19. Gear ring; 20. Gear; 21. Servo motor; 22. Suction integrated fan; 23. Camshaft body. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-7 , the utility model provides a technical solution:
[0023] A cylindrical grinder for producing a brake camshaft comprises a shell 1 and a grinding device assembly 2, wherein the grinding device assembly 2 is arranged on one side of the shell 1, a limited rotation support plate 3 is fixedly connected to one side of the shell 1, a hollow shaft ring 4 is rotatably connected to the inner side of the limited rotation support plate 3, a turntable 5 is fixedly connected to the inner side of the hollow shaft ring 4, a hand handle 6 is rotatably connected to one side of the turntable 5, a double fixed bearing 7 is fixedly connected to one side of the turntable 5, a limited position movable groove 8 is arranged on the inner side of the limited position movable groove 8, a limited position rectangular strip 9 is slidably connected to the inner side of the limited position rectangular strip 9, a rectangular plate 10 is fixedly connected to one side of the rectangular plate 10, a ventilation passage 11 is arranged on the inner side of the rectangular plate 10, and a ventilation hose 1 is fixedly connected to one side of the rectangular plate 10 2. A spring 13 is fixedly connected to the inner side of the rectangular plate 10, a sliding column cylinder 14 is fixedly connected to one side of the spring 13, a sealing ring 15 is fixedly connected to the outer side of one end of the sliding column cylinder 14, a suction cup 16 is fixedly connected to one side of the sliding column cylinder 14, one end of the rectangular plate 10 is rotatably connected to a double-rotation connecting rod 17 through a bearing, one end of the double-rotation connecting rod 17 is rotatably connected to a passive rotating disk 18 through a bearing, a gear ring 19 is fixedly connected to the outer side of the passive rotating disk 18, the outer side of the gear ring 19 is meshed with the outer side of the gear 20, the inner side of the gear 20 is fixedly connected to the outer side of the main shaft of the servo motor 21, a suction integrated fan 22 is fixedly connected to one side of the rotating disk 5, and one side of the suction cup 16 is in contact with one side of the camshaft body 23.
[0024] A limited rotation groove is provided on the inner side of one end of the rotation limiting support plate 3, the hollow shaft ring 4 is in the shape of a hollow cylinder, the number of the rotation limiting support plates 3 is two, the turntable 5 is in the shape of a hollow cylinder, the turntable 5 protrudes from one side of the rotation limiting support plate 3, and has the effect of limiting the position of the hollow shaft ring 4 when rotating. By moving the grinding equipment component 2, the camshaft body 23 is ground. The number of the turntable 5 and the hollow shaft ring 4 are both two, the hollow shaft ring 4 and the turntable 5 are arranged on one side of the front end and the rear end of the housing 1, one side of the double fixed bearing 7 is fixedly connected to one side of the passive turntable 18, and the double fixed The bearing 7 is in the shape of a hollow cylinder, the number of the limiting movable grooves 8 is several, the limiting movable grooves 8 are in the shape of a hollow cylinder, the limiting movable grooves 8 are provided with a limiting slide groove, the limiting rectangular bar 9 is in the shape of a rectangular body, the rectangular plate 10 is slidably connected to the inner side of the limiting movable groove 8 through the limiting rectangular bar 9, when the double-rotating connecting rod 17 rotates and moves, the rectangular plate 10 is pushed to move, and the rectangular plate 10 slides on the inner side of the limiting movable groove 8 through the limiting rectangular bar 9, so that the suction cup 16 can fit with the outer side of the camshaft body 23, and the suction integrated fan The inner side of 22 is connected with the inner side of the ventilation hose 12 through the turntable 5. A plurality of ventilation grooves are provided on the inner side of the turntable 5. The inner side of the ventilation hose 12 is connected with the inner side of the ventilation passage 11. The inner side of the ventilation passage 11 is connected with the inner side of the suction cup 16 through the sliding column cylinder 14. The sliding column cylinder 14 is a hollow cylinder, which facilitates the movement of the rectangular plate 10 to drive the sliding column cylinder 14 and the suction cup 16, thereby fixing the camshaft body 23 and achieving a certain buffering effect. The outer side of the sliding column cylinder 14 is slidably connected to the inner side of the ventilation passage 11, and the outer side of the sealing ring 15 is connected to the inner side of the ventilation passage 11. The number of rectangular plates 10 is the same as the number of limiting movable grooves 8. A cylindrical groove is provided on the inner side of one end of the limiting movable groove 8. The outer side of the sliding column 14 slides in the cylindrical groove on the inner side of one end of the limiting movable groove 8. The suction cup 16 protrudes from the inner side of the turntable 5. The outer sides of both ends of the camshaft body 23 move on the inner side of the turntable 5. Under the suction force of the suction integrated fan 22 on the suction cup 16, the camshaft body 23 is limited, which makes it convenient for the hand handle 6 to rotate to drive the camshaft body 23 to rotate, thereby improving the grinding efficiency of the camshaft body 23.
[0025] Working process: When the device is in use, the external power supply is powered on. When the camshaft body 23 needs to be fixed, the outer sides of the two ends of the camshaft body 23 are placed on the inner side of the turntable 5, and the servo motor 21 is started. The main shaft of the servo motor 21 rotates to drive the gear 20 fixedly connected to the end of the main shaft to rotate. At the same time, the hand handle 6 is fixed with one hand to improve the stability of the passive turntable 18 when it rotates. The rotation of the gear 20 drives the outer meshing ring gear 19 to rotate. The rotation of the ring gear 19 drives the passive turntable 18 fixedly connected on the inner side to rotate. The rotation of the passive turntable 18 drives the double-rotating connecting rod 17 rotatably connected at one end to rotate and move. One side of the passive turntable 18 is connected to the double-rotating connecting rod 17. One side of the fixed bearing 7 is fixedly connected, and at the same time, one side of the double fixed bearing 7 is fixedly connected to one side of the turntable 5. A steel column is arranged inside the double fixed bearing 7. When the passive turntable 18 is not hindered from rotating, the passive turntable 18 can be limited. The movement of the double rotating connecting rod 17 drives the rectangular plate 10 connected at one end to move. The rectangular plate 10 is slidably connected to the inner side of the limit movable groove 8 through the limit rectangular strip 9 fixedly connected on the outside. At the same time, the sliding column cylinder 14 slides in the cylindrical groove inside one end of the limit movable groove 8. When one side of the suction cup 16 is fitted with the outer sides of the two ends of the camshaft body 23, the suction cup 16 squeezes the sliding column cylinder 14, and the outer side of the sliding column cylinder 14 The sliding column 14 slides sideways on the inner side of the air passage 11, and the sealing ring 15 fixedly connected to the outer side of one end of the sliding column cylinder 14 fits with the inner side of the air passage 11. The sealing ring 15 seals the sliding column cylinder 14 and the inner side of the air passage 11. The sliding column cylinder 14 moves to squeeze the spring 13, and the spring 13 is deformed. When the camshaft body 23 is fixed, it has a certain buffering effect, protecting the fixing device and the outer side of the camshaft body 23 from damage. The suction integrated fan 22 is started, and the inner side of the ventilation hose 12 in the suction integrated fan 22 is exhausted. At this time, the inside of the suction cup 16 is exhausted, and the gas inside the suction cup 16 is discharged from the inside of the sliding column cylinder 14. Enter the interior of the air duct 11, enter the interior of the integrated suction fan 22 from the air duct 11 through the ventilation hose 12, and enter the atmosphere from the interior of the integrated suction fan 22. At this time, the camshaft body 23 can be fixed. When the angle of the camshaft body 23 needs to be rotated, the hand handle 6 is rotated about the axis of the turntable 5. The rotation of the hand handle 6 drives the turntable 5 connected at one end to rotate. The turntable 5 is rotatably connected to the inner groove of the limiting support plate 3 through the hollow shaft ring 4. The limiting support plate 3 has the effect of limiting the position of the hollow shaft ring 4 when it rotates. By moving the grinding equipment component 2, the camshaft body 23 is polished.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cylindrical grinding machine for producing a brake camshaft, comprising a housing (1) and a grinding device assembly (2), characterized in that: A grinding device assembly (2) is provided on one side of the shell (1); a limited rotation support plate (3) is fixedly connected to one side of the shell (1); a hollow shaft ring (4) is rotatably connected to the inner side of the limited rotation support plate (3); a turntable (5) is fixedly connected to the inner side of the hollow shaft ring (4); a hand handle (6) is rotatably connected to one side of the turntable (5); a double fixed bearing (7) is fixedly connected to one side of the turntable (5); a limited position movable groove (8) is provided on the inner side of the limited position movable groove (8); a limited position rectangular strip (9) is slidably connected to the inner side of the limited position rectangular strip (9); a rectangular plate (10) is fixedly connected to one side of the limited position rectangular strip (9); a ventilation channel (11) is provided on the inner side of the rectangular plate (10); a ventilation hose (12) is fixedly connected to one side of the rectangular plate (10); and a plurality of fixed bearings (13) are fixedly connected to the inner side of the rectangular plate (10). A spring (13) is fixedly connected to one side of the spring (13), a sliding column cylinder (14) is fixedly connected to one side of the sliding column cylinder (14), a sealing ring (15) is fixedly connected to one side of the sliding column cylinder (14), a suction cup (16) is fixedly connected to one side of the sliding column cylinder (14), one end of the matrix plate (10) is rotatably connected to a double-rotating connecting rod (17) through a bearing, one end of the double-rotating connecting rod (17) is rotatably connected to a passive rotating disk (18) through a bearing, a gear ring (19) is fixedly connected to the outer side of the passive rotating disk (18), the outer side of the gear ring (19) is meshed with the outer side of a gear (20), the inner side of the gear (20) is fixedly connected to the outer side of the main shaft of a servo motor (21), one side of the rotating disk (5) is fixedly connected to a suction integrated fan (22), and one side of the suction cup (16) is in contact with one side of a camshaft body (23).
2. The cylindrical grinding machine for producing a brake camshaft according to claim 1, characterized in that: A limited rotation groove is provided on the inner side of one end of the rotation limiting support plate (3); the hollow shaft ring (4) is in the shape of a hollow cylinder; there are two rotation limiting support plates (3); the rotating disk (5) is in the shape of a hollow cylinder; and the rotating disk (5) protrudes from one side of the rotation limiting support plate (3).
3. The cylindrical grinding machine for producing brake camshafts according to claim 1, characterized in that: The number of the rotating disk (5) and the hollow shaft ring (4) are both two. The hollow shaft ring (4) and the rotating disk (5) are arranged on one side of the front end and the rear end of the housing (1). One side of the double fixed bearing (7) is fixedly connected to one side of the passive rotating disk (18). The double fixed bearing (7) is in the shape of a hollow cylinder. The number of the limiting movable grooves (8) is a plurality. The limiting movable grooves (8) are in the shape of a hollow cylinder. A limiting sliding groove is provided inside the limiting movable groove (8). The limiting rectangular strip (9) is in the shape of a rectangular body. The rectangular body plate (10) is slidably connected to the inner side of the limiting movable groove (8) through the limiting rectangular strip (9).
4. The cylindrical grinding machine for producing brake camshafts according to claim 1, characterized in that: The inner side of the integrated suction fan (22) is connected to the inner side of the ventilation hose (12) via a turntable (5), a plurality of ventilation grooves are provided on the inner side of the turntable (5), the inner side of the ventilation hose (12) is connected to the inner side of the ventilation duct (11), the inner side of the ventilation duct (11) is connected to the inner side of the suction cup (16) via a sliding column tube (14), and the sliding column tube (14) is in the shape of a hollow cylinder.
5. The cylindrical grinding machine for producing brake camshafts according to claim 1, characterized in that: The outer side of the sliding column cylinder (14) is slidably connected to the inner side of the air passage (11), the outer side of the sealing ring (15) is fitted with the inner side of the air passage (11), the number of the rectangular plates (10) is the same as the number of the limiting movable grooves (8), a cylindrical groove is provided on the inner side of one end of the limiting movable groove (8), the outer side of the sliding column cylinder (14) slides on the cylindrical groove on the inner side of one end of the limiting movable groove (8), the suction cup (16) protrudes from the inner side of the turntable (5), and the outer sides of both ends of the camshaft body (23) move on the inner side of the turntable (5).