Camshaft center hole polishing device

Abstract

The utility model discloses a camshaft center hole polishing device which comprises a polishing box, a motor and a polishing brush, a machining seat is arranged in the polishing box, an installation seat is arranged above the machining seat, a fixing seat is arranged above the installation seat, a hydraulic rod is arranged on one side above the fixing seat, and a hydraulic cylinder is arranged on the other side above the hydraulic rod. The output end of the hydraulic rod is connected with a clamping base, the clamping base is correspondingly arranged above the fixing base, motors are arranged on the two sides, close to the mounting base, of the polishing box, and the output ends of the motors are connected with polishing brushes. According to the cam shaft center hole polishing device, through mutual cooperation of a bevel gear set and a connecting rod, two motors can synchronously move inwards to drive a polishing brush to synchronously polish the two ends of a cam shaft center hole, so that the polishing speed of the cam shaft center hole polishing device is higher; and through mutual cooperation of a second motor and a threaded rod, the whole mounting base moves upwards, and the polished cam shaft can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of camshaft production and processing, in particular to a camshaft center hole polishing device. Background Art

[0002] The camshaft is one of the important components in the internal combustion engine. The camshaft transmits power through the connecting rod and the crankshaft, controls the opening and closing of the valves and the operation of the injection system. The camshaft is mainly installed on the cylinder block of the engine through the center hole. During the installation process, the center hole of the camshaft needs to be precisely aligned with the corresponding hole position on the cylinder block. Therefore, the corresponding polishing device is required in the production and processing of the camshaft. The center hole of the camshaft is polished and grinded by the polishing device to ensure that the center hole of the camshaft meets the design requirements of accuracy and surface quality.

[0003] When the existing camshaft center hole polishing device is in use, the polishing brush is generally directly driven by a motor to be inserted from one end of the camshaft to polish its center hole. The existing camshaft center hole polishing device extends from one end to polish the center hole of the camshaft, which makes the polishing speed of the camshaft center hole slow. Therefore, it is necessary to improve the existing camshaft center hole polishing device. Utility Model Content

[0004] The utility model aims to provide a camshaft center hole polishing device to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a camshaft center hole polishing device, comprising a polishing box, a motor and a polishing brush, a processing seat is arranged inside the polishing box, and a mounting seat is arranged above the processing seat, a fixed seat is arranged above the mounting seat, and a hydraulic rod is installed on one side above the fixed seat, the output end of the hydraulic rod is connected to a clamping seat, and the clamping seat corresponds to the top of the fixed seat, the polishing box is provided with motors on both sides close to the mounting seat, and the output end of the motor is connected to a polishing brush.

[0006] Preferably, a movable cavity is provided inside the processing seat, and a movable seat is connected to the inside of the movable cavity, the motor is installed above the movable seat, and a connecting rod passes through the bottom of the two movable seats.

[0007] Preferably, both ends of the connecting rod are connected to the inner wall of the movable cavity through a bearing seat, a bevel gear set is sleeved on the middle part of the connecting rod, and a first motor connected to the bevel gear set is installed on the surface of the processing seat.

[0008] Preferably, a first shielding plate penetrates the upper interior of the processing seat close to the connecting rod, and a first spring is commonly connected between the first shielding plate and the processing seat.

[0009] Preferably, a second shielding plate passes through the interior of the first shielding plate, and a second spring is commonly connected between the second shielding plate and the first shielding plate, and one end of the second shielding plate away from the first shielding plate is connected to the movable seat.

[0010] Preferably, a connecting seat is arranged on the outer side of the processing seat close to the mounting seat, and a guide groove is opened inside the connecting seat, and a guide block is inserted inside the guide groove.

[0011] Preferably, the outer end of the guide block is connected to the outer wall edge of the mounting seat, the inner wall of the polishing box is provided with a connecting block, and the back side of the mounting seat is provided with a connecting plate.

[0012] Preferably, a threaded rod passes through the top of the connecting plate, and the threaded rod is connected to the inner wall of the connecting block through a bearing seat, and a second motor that docks with the threaded rod is installed above the connecting block.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the camshaft center hole polishing device, through the mutual cooperation between the bevel gear set and the connecting rod, can make the two motors move inward synchronously to drive the polishing brushes to polish the two ends of the camshaft center hole synchronously, so that the polishing speed of the camshaft center hole polishing device is faster, and the mounting base is moved upward as a whole through the mutual cooperation between the second motor and the threaded rod, which facilitates the removal of the polished camshaft.

[0014] 1. The camshaft center hole polishing device starts the first motor to drive the bevel gear set and the connecting rod connected to the output end to rotate synchronously. Since the surface of the connecting rod is provided with a bidirectional thread, and the connecting rod and the movable seat are threadedly connected, the two outer movable seats can be synchronously moved inward along the movable cavity with the rotation of the connecting rod, and the movable movable seat drives the motor to move synchronously, and the movable movable seat drives the connected second shielding plate to move synchronously, and the second shielding plate moves toward the inside of the first shielding plate while squeezing the second spring. When the second shielding plate moves to the extreme position, the first shielding plate can be driven to move toward the inside of the processing seat, and the movable first shielding plate squeezes the first spring until the polishing brush connected to the output end of the motor is gradually extended into the inside of the camshaft. The rotation of the motor can drive the polishing brush to polish the center hole of the camshaft one by one. Through the mutual cooperation between the bevel gear set and the connecting rod, the two motors can be synchronously moved inward to drive the polishing brush to synchronously polish the two ends of the center hole of the camshaft, thereby making the polishing speed of the camshaft center hole polishing device faster;

[0015] 2. The camshaft center hole polishing device starts the second motor to drive the threaded rod connected to the output end to rotate synchronously. Since the threaded rod and the connecting plate are threadedly connected, the outer connecting plate can drive the mounting seat to move upward synchronously as the threaded rod rotates. The upwardly moved mounting seat moves upward toward the inside of the connecting seat along the guide groove through the guide blocks at both ends until the mounting seat is moved up to the limit position. At this time, the mounting seat drives the camshaft installed above to move upward, so that the camshaft is close to the opening position of the polishing box. Through the mutual cooperation of the second motor and the threaded rod, the mounting seat can be moved upward as a whole, so that the camshaft center hole polishing device can facilitate the removal of the polished camshaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cutaway structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cutaway structure of the utility model from the left side;

[0018] Figure 3 This is a schematic diagram of the main cutaway structure of the processing seat of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the mounting seat of the utility model.

[0020] In the figure: 1. polishing box; 2. processing seat; 3. mounting seat; 4. fixing seat; 5. hydraulic rod; 6. clamping seat; 7. motor; 8. polishing brush; 9. movable chamber; 10. movable seat; 11. connecting rod; 12. bevel gear set; 13. first motor; 14. first baffle plate; 15. first spring; 16. second baffle plate; 17. second spring; 18. connecting seat; 19. guide groove; 20. guide block; 21. connecting block; 22. connecting plate; 23. threaded rod; 24. second motor. 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 , Figure 2 and Figure 4The utility model provides a technical solution: a camshaft center hole polishing device, including a polishing box 1, a motor 7 and a polishing brush 8, a processing seat 2 is arranged inside the polishing box 1, and a mounting seat 3 is arranged above the processing seat 2, a fixed seat 4 is arranged above the mounting seat 3, and a hydraulic rod 5 is installed on one side above the fixed seat 4, the output end of the hydraulic rod 5 is connected to a clamping seat 6, and the clamping seat 6 corresponds to the top of the fixed seat 4, the polishing box 1 is provided with motors 7 on both sides close to the mounting seat 3, and the output end of the motor 7 is connected to the polishing brush 8.

[0023] An active cavity 9 is provided inside the processing seat 2, and a movable seat 10 is connected to the inside of the active cavity 9, the motor 7 is installed above the movable seat 10, and a connecting rod 11 runs through the bottom of the two movable seats 10; both ends of the connecting rod 11 are connected to the inner wall of the active cavity 9 through a bearing seat, a bevel gear set 12 is sleeved and installed in the middle of the connecting rod 11, and a first motor 13 connected to the bevel gear set 12 is installed on the surface of the processing seat 2; a first baffle plate 14 runs through the inside of the processing seat 2 near the upper part of the connecting rod 11, and the first baffle plate 14 and the processing seat 2 are connected. It is connected with a first spring 15; a second baffle plate 16 is passed through the interior of the first baffle plate 14, and a second spring 17 is commonly connected between the second baffle plate 16 and the first baffle plate 14, and the end of the second baffle plate 16 away from the first baffle plate 14 is connected to the movable seat 10, and the first baffle plate 14 forms a telescopic structure with the first spring 15 and the processing seat 2, and the second baffle plate 16 forms a telescopic structure with the second spring 17 and the first baffle plate 14, and the surface of the connecting rod 11 is provided with a bidirectional thread, and the connecting rod 11 and the movable seat 10 are threadedly connected.

[0024] In the specific implementation, the bevel gear set 12 and the connecting rod 11 connected to the output end are driven to rotate synchronously by starting the first motor 13. Since the surface of the connecting rod 11 is provided with a bidirectional thread, and the connecting rod 11 and the movable seat 10 are threadedly connected, the two outer movable seats 10 can be synchronously moved inward along the movable cavity 9 with the rotation of the connecting rod 11, and the movable seat 10 drives the motor 7 to move synchronously, and the movable seat 10 drives the connected second baffle plate 16 to move synchronously, and the second baffle plate 16 moves toward the inside of the first baffle plate 14 while squeezing the second spring 17. When the second baffle plate 16 moves to the extreme position, it can drive the first baffle plate 14 to move toward the inside of the processing seat 2, and the moving first baffle plate 14 squeezes the first spring 15 until the polishing brush 8 connected to the output end of the motor 7 is gradually extended into the inside of the camshaft. The rotation of the motor 7 can drive the polishing brush 8 to polish the center hole of the camshaft one by one. Through the mutual cooperation between the bevel gear set 12 and the connecting rod 11, the two motors 7 can move inward synchronously to drive the polishing brush 8 to polish the two ends of the center hole of the camshaft synchronously, thereby making the polishing speed of the camshaft center hole polishing device faster.

[0025] See also Figure 1 and Figure 3 A connecting seat 18 is provided on the outer side of the processing seat 2 near the mounting seat 3, and a guide groove 19 is opened inside the connecting seat 18, and a guide block 20 is inserted inside the guide groove 19; the outer end of the guide block 20 is connected to the outer wall edge of the mounting seat 3, a connecting block 21 is provided on the inner wall of the polishing box 1, and a connecting plate 22 is provided on the back of the mounting seat 3; a threaded rod 23 passes through the top of the connecting plate 22, and the threaded rod 23 is connected to the inner wall of the connecting block 21 through a bearing seat, and a second motor 24 docking with the threaded rod 23 is installed above the connecting block 21, and the threaded rod 23 and the connecting plate 22 are threadedly connected, the guide blocks 20 are symmetrically distributed about the center line of the mounting seat 3, and the guide blocks 20 and the guide groove 19 are slidingly connected.

[0026] During specific implementation, the second motor 24 is started to drive the threaded rod 23 connected to the output end to rotate synchronously. Since the threaded rod 23 and the connecting plate 22 are threadedly connected, the outer connecting plate 22 can drive the mounting seat 3 to move upward synchronously with the rotation of the threaded rod 23. The upwardly moved mounting seat 3 moves upward along the guide groove 19 toward the inside of the connecting seat 18 through the guide blocks 20 at both ends until the mounting seat 3 is moved up to the extreme position. At this time, the mounting seat 3 drives the camshaft installed above to move upward, so that the camshaft is close to the opening position of the polishing box 1. Through the mutual cooperation of the second motor 24 and the threaded rod 23, the mounting seat 3 can be moved upward as a whole, so that the camshaft center hole polishing device can facilitate the removal of the polished camshaft.

[0027] In summary, when using the camshaft center hole polishing device, first start the hydraulic rod 5 to drive the clamping seat 6 to move up to the extreme position, at which time the distance between the clamping seat 6 and the fixed seat 4 is the largest, and then place the camshaft to be polished above the fixed seat 4, and start the hydraulic rod 5 again to drive the clamping seat 6 to retract and move downward until the clamping seat 6 and the top of the camshaft are clamped and limited, and then the two movable seats 10 and the upper motor 7 are driven to move inward synchronously through the cooperation of the first motor 13 and the connecting rod 11, so that the polishing brush 8 connected to the output end of the motor 7 is inserted into the center hole of the camshaft, and the motor 7 is started to drive the polishing brush 8 to rotate to complete the polishing of the center hole of the camshaft, so that the inside of the center hole of the camshaft is smoother. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A camshaft center hole polishing device, comprising a polishing box (1), a motor (7) and a polishing brush (8), characterized in that: A processing seat (2) is arranged inside the polishing box (1), and a mounting seat (3) is arranged above the processing seat (2), a fixed seat (4) is arranged above the mounting seat (3), and a hydraulic rod (5) is installed on one side above the fixed seat (4), the output end of the hydraulic rod (5) is connected to a clamping seat (6), and the clamping seat (6) corresponds to the top of the fixed seat (4), and motors (7) are arranged on both sides of the polishing box (1) close to the mounting seat (3), and the output end of the motor (7) is connected to a polishing brush (8).

2. A camshaft center hole polishing device according to claim 1, characterized in that: The processing seat (2) has an internal movable cavity (9), and the internal movable cavity (9) is connected to a movable seat (10). The motor (7) is installed above the movable seat (10), and a connecting rod (11) runs through the bottom of the two movable seats (10).

3. A camshaft center hole polishing device according to claim 2, characterized in that: The two ends of the connecting rod (11) are connected to the inner wall of the movable cavity (9) through a bearing seat, a bevel gear set (12) is sleeved and installed in the middle of the connecting rod (11), and a first motor (13) connected to the bevel gear set (12) is installed on the surface of the processing seat (2).

4. A camshaft center hole polishing device according to claim 3, characterized in that: A first shielding plate (14) penetrates the interior of the processing seat (2) above and close to the connecting rod (11), and a first spring (15) is commonly connected between the first shielding plate (14) and the processing seat (2).

5. A camshaft center hole polishing device according to claim 4, characterized in that: A second shielding plate (16) passes through the interior of the first shielding plate (14), and a second spring (17) is commonly connected between the second shielding plate (16) and the first shielding plate (14), and one end of the second shielding plate (16) away from the first shielding plate (14) is connected to the movable seat (10).

6. A camshaft center hole polishing device according to claim 4, characterized in that: A connecting seat (18) is arranged on the outer side of the processing seat (2) close to the mounting seat (3), and a guide groove (19) is provided inside the connecting seat (18), and a guide block (20) is inserted inside the guide groove (19).

7. A camshaft center hole polishing device according to claim 6, characterized in that: The outer end of the guide block (20) is connected to the outer wall edge of the mounting seat (3), the inner wall of the polishing box (1) is provided with a connecting block (21), and the back side of the mounting seat (3) is provided with a connecting plate (22).

8. A camshaft center hole polishing device according to claim 7, characterized in that: A threaded rod (23) passes through the top of the connecting plate (22), and the threaded rod (23) is connected to the inner wall of the connecting block (21) through a bearing seat. A second motor (24) is installed above the connecting block (21) and is connected to the threaded rod (23).

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