Grinding device for processing shift heads

Abstract

This utility model discloses a grinding device for processing gear shift heads, relating to the field of automotive parts technology. It includes: a base; a worktable mounted at the top of the outer surface of the base; a turntable mounted at the top of the outer surface of the worktable; several sets of motors radially mounted inside the turntable; a third rotating rod mounted through the output end of each motor on the outer surface of the turntable; a mounting cylinder inserted into the shaft surface of the third rotating rod; and positioning rods mounted on both sides of the bottom end of the mounting cylinder. Through the turntable and the motor-driven third rotating rod, and the linkage between the rotating protrusion and the clamping plate, multi-angle adaptive positioning of the gear shift head is achieved. The positioning error is reduced from ±0.3mm in traditional devices to ±0.08mm, avoiding grinding deviations caused by clamping tilt. The multi-station design of the turntable allows for simultaneous clamping of multiple parts. Combined with a rotating mechanism driven by a fourth motor, rapid rotational processing of multiple parts is achieved, significantly improving efficiency compared to traditional single-machine processing.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a grinding device for processing gear shift heads. Background Technology

[0002] As a key component of automotive transmissions, the gear shifter's machining quality directly affects the smoothness and reliability of gear shifting. This component has a complex structure, including not only multi-step and boss structures on the lever, but also spherical hinge surfaces and fork-shaped connecting surfaces at both ends, which must meet high dimensional accuracy and surface quality requirements. For example, the surface roughness of the hinge surface must reach below Ra0.8μm, and the dimensional error of the mating parts must be controlled within ±0.05mm.

[0003] Currently, the grinding and processing of shift heads in the industry mainly has the following problems: In terms of positioning and clamping, most companies still use clamps such as flat-jaw vises and universal chucks, which are difficult to adapt to the complex shape and contour of shift heads, and the parts are prone to tilting or displacement during clamping. Utility Model Content

[0004] To solve the above-mentioned technical problems, a grinding device for processing shift heads is provided. This technical solution solves the problem of displacement during processing caused by the inability to adapt to the shape of the workpiece mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A grinding device for processing shift levers includes: a base; a worktable mounted at the top of the outer surface of the base; a turntable mounted at the top of the outer surface of the worktable; several sets of motors radially mounted inside the turntable; a third rotating rod mounted through the output end of each motor on the outer surface of the turntable; a mounting cylinder inserted into the shaft surface of the third rotating rod; the mounting cylinder having a receiving space for accommodating the shift lever; positioning rods mounted on both sides of the bottom end of the mounting cylinder for limiting the shift lever on both sides; and a limit rod mounted on one side of the shaft surface of the third rotating rod. Between the two sets of positioning rods, the limiting rod is used to limit the shift head in a specific direction. A rotating protrusion is inserted into the top of the outer surface of the third rotating rod, and bosses are provided at both ends of the outer surface of the rotating protrusion. A fourth rotating rod is inserted into the shaft surface of the mounting cylinder. The fourth rotating rod serves as the rotation fulcrum of the clamping plate. A clamping plate is inserted into the shaft surface of the fourth rotating rod, and the clamping plate can rotate around the fourth rotating rod. The boss of the rotating protrusion is located below the clamping plate. When the motor drives the rotating protrusion to rotate through the third rotating rod, the boss pushes the clamping plate to rotate around the fourth rotating rod and presses the shift head located in the mounting cylinder.

[0006] Preferably, a second rotating rod is installed at the middle of the bottom end of the shaft surface of the turntable, a second bevel gear is installed at the bottom end of the shaft surface of the second rotating rod through the outer surface of the turntable and the worktable, and a mounting plate is installed at the middle end of the shaft surface of the second rotating rod.

[0007] Preferably, the bottom end of the outer surface of the second bevel gear is meshed with the first bevel gear, the middle section of the outer surface of the first bevel gear is inserted with the first rotating rod, and the bottom end of the shaft surface of the first rotating rod is fixedly installed with the fourth motor.

[0008] Preferably, a mounting bracket is installed at the top of the outer surface of the base, a mounting column is installed at the bottom of the outer surface of the base, a mounting box is installed on the left side of the inner side of the outer surface of the mounting bracket, a sliding bracket is installed on one side of the inner side of the mounting box, and a slot is opened on the outer surface of the sliding bracket.

[0009] Preferably, a first motor is installed in the middle of the interior of the mounting box, a first threaded shaft is fixedly installed at the output end of the first motor, a movable block is threadedly installed on the shaft surface of the first threaded shaft, and a second motor is installed on one side of the bottom of the outer surface of the movable block.

[0010] Preferably, a second threaded shaft is fixedly installed at the output end of the second motor, a connecting block is threadedly installed on the shaft surface of the second threaded shaft, a telescopic rod is installed at the top end of one side of the shaft surface of the movable block, and a connecting block is installed at the bottom end of the shaft surface of the telescopic rod.

[0011] Preferably, a third motor is provided in the middle of the connecting block, a rotating shaft is installed at the output end of the third motor, and a grinding disc is inserted into the bottom end of the shaft surface of the rotating shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In the grinding device for processing shift heads proposed in this solution, a turntable, in conjunction with a motor-driven third rotating rod, and the linkage between the rotating cam and the clamping plate, achieves multi-angle adaptive positioning of the shift head. The mounting cylinder, positioning rod, and limiting rod provide containment, lateral limiting, and specific directional limiting for the shift head. The clamping plate rotates around the fourth rotating rod under the push of the rotating cam's boss, pressing the workpiece firmly, thus avoiding grinding deviations caused by clamping tilt. The multi-station design of the turntable allows for the simultaneous clamping of multiple parts. Combined with the rotation mechanism driven by the fourth motor, it enables rapid rotational processing of multiple parts, improving efficiency compared to traditional single-machine processing. The three-dimensional adjustable grinding mechanism, through the control of the horizontal and vertical displacement of the grinding disc by the first and second motors and the speed adjustment of the third motor, can handle complex areas such as spherical grooves and forked curved surfaces, further reducing processing tolerances. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the second structure of the present invention; Figure 3 This is a schematic diagram of the structure of the mobile component in this utility model; Figure 4 This is a schematic diagram of the rotating assembly in this utility model; Figure 5 This is a schematic diagram of the limiting component in this utility model.

[0014] The following are the labels in the diagram: 1. Base; 2. Mounting bracket; 3. Mounting column; 4. Workbench; 5. Turntable; 6. Mounting box; 7. Sliding frame; 8. First motor; 9. First threaded shaft; 10. Moving block; 11. Connecting block; 12. Second motor; 13. Second threaded shaft; 14. Third motor; 15. Rotating shaft; 16. Grinding disc; 17. Telescopic rod; 18. Fourth motor; 19. First rotating rod; 20. First bevel gear; 21. Second bevel gear; 22. Second rotating rod; 23. Mounting plate; 24. Clamping plate; 25. Motor; 26. Mounting cylinder; 27. Third rotating rod; 28. Positioning rod; 29. ​​Limiting rod; 30. Rotating protrusion; 31. Fourth rotating rod. Detailed Implementation

[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0016] Reference Figure 1-5As shown, a grinding device for processing a shift lever includes: a base 1, a worktable 4 mounted at the top of the outer surface of the base 1, a turntable 5 mounted at the top of the outer surface of the worktable 4, several sets of motors 25 radially mounted inside the turntable 5, a third rotating rod 27 mounted through the output end of each motor 25 on the outer surface of the turntable 5, and a mounting cylinder 26 inserted into the shaft surface of the third rotating rod 27, the mounting cylinder 26 having a receiving space for accommodating the shift lever. Positioning rods 28 are mounted on both sides of the bottom end of the mounting cylinder 26, the positioning rods 28 abutting against the outer contours of both sides of the shift lever, thereby limiting the shift lever's movement on both sides; a limiting rod 29 is mounted on one side of the shaft surface of the third rotating rod 27, and the limiting rod 29 is positioned between the two sets of positioning rods 28, the limiting rod 29 abutting against corresponding parts of the outer contour of the shift lever, thereby limiting the displacement of the shift lever in a specific direction. A rotating protrusion 30 is inserted into the top of the outer surface of the third rotating rod 27, and bosses are provided at both ends of the outer surface of the rotating protrusion 30; a fourth rotating rod 31 is inserted into the shaft surface of the mounting cylinder 26, and the fourth rotating rod 31 serves as the rotation fulcrum of the clamping plate 24. The clamping plate 24 is inserted into the shaft surface of the fourth rotating rod 31, and the clamping plate 24 can rotate around the fourth rotating rod 31; the boss of the rotating protrusion 30 is located below the clamping plate 24. When the rotating protrusion 30 rotates with the third rotating rod 27, it can push the clamping plate 24 through the boss, so that the clamping plate 24 rotates around the fourth rotating rod 31 and presses the shifter located in the mounting cylinder 26.

[0017] Through the above scheme, the workbench 4 and the turntable 5 constitute the basic platform for part positioning and rotation. During operation, the shift head is placed in the receiving space of the mounting cylinder 26. The mounting cylinder 26 receives and supports the shift head. Two sets of positioning rods 28 limit the part from both sides to prevent it from moving in the horizontal direction. The limiting rod 29 is located between the two sets of positioning rods 28 and is used to block the displacement of the part in a specific direction, thus forming bottom and lateral limiting together with the two sets of positioning rods 28. Then the motor 25 starts and drives the third rotating rod 27 to rotate. The third rotating rod 27 drives the rotating protrusion 30 to rotate. When the protrusion of the rotating protrusion 30 abuts against the bottom of the clamping plate 24, the clamping plate 24 rotates with the fourth rotating rod 31 as the rotation fulcrum and applies a clamping force to the shift head in the mounting cylinder 26. Thus, the shift paddle is fixed in multiple directions by the cooperation of the mounting cylinder 26, the positioning rod 28, the limiting rod 29 and the clamping plate 24, which can prevent tilting, horizontal movement or damage due to excessive clamping in one direction during grinding.

[0018] Reference Figure 1-4As shown, a second rotating rod 22 is installed at the middle of the bottom end of the shaft surface of the turntable 5. A second bevel gear 21 is installed at the bottom end of the shaft surface of the second rotating rod 22, penetrating the outer surface of the turntable 5 and the worktable 4. A mounting plate 23 is installed at the middle end of the shaft surface of the second rotating rod 22. A first bevel gear 20 is meshed at the bottom end of the outer surface of the second bevel gear 21. A first rotating rod 19 is inserted into the middle section of the outer surface of the first bevel gear 20. A fourth motor 18 is fixedly installed at the bottom end of the shaft surface of the first rotating rod 19.

[0019] With the above scheme, after the fourth motor 18 starts, it drives the first rotating rod 19 to rotate, which in turn drives the first bevel gear 20 to rotate. Since the first bevel gear 20 meshes with the second bevel gear 21, the second bevel gear 21 rotates accordingly, thereby driving the second rotating rod 22 to rotate, and finally causing the turntable 5 to rotate. The rotation of the turntable 5 can drive multiple mounting cylinders 26 and the internal shifting heads to rotate, realizing the rapid processing of multiple parts.

[0020] Reference Figure 1-3 As shown, a mounting bracket 2 is installed at the top of the outer surface of the base 1, a mounting post 3 is installed at the bottom of the outer surface of the base 1, a mounting box 6 is installed on the left side of the inner side of the outer surface of the mounting bracket 2, a sliding bracket 7 is installed on one side of the inner side of the mounting box 6, and a slot is opened on the outer surface of the sliding bracket 7. A first motor 8 is installed in the middle of the inner side of the mounting box 6, a first threaded shaft 9 is fixedly installed at the output end of the first motor 8, and a moving block 10 is threadedly installed on the shaft surface of the first threaded shaft 9.

[0021] With the above scheme, after the first motor 8 starts, it drives the first threaded shaft 9 to rotate. Since the moving block 10 and the first threaded shaft 9 are connected by threads, according to the principle of thread transmission, the moving block 10 will move in the slot of the sliding frame 7 along the axial direction of the first threaded shaft 9. By controlling the forward and reverse rotation and the number of rotations of the first motor 8, the horizontal position of the moving block 10 can be controlled, thereby driving the subsequent connected grinding components to move in the horizontal direction, realizing the grinding coverage of different positions of the shift head. Compared with the limitation of traditional fixed grinding wheels that can only grind the outer circle of the rod, this structure allows the grinding mechanism to flexibly adjust its position and improves the equipment's ability to process complex shaped parts.

[0022] Reference Figure 1-3As shown, further, a second motor 12 is installed on one side of the bottom of the outer surface of the movable block 10, a second threaded shaft 13 is fixedly installed on the output end of the second motor 12, a connecting block 11 is threaded on the shaft surface of the second threaded shaft 13, a telescopic rod 17 is installed on the top of one side of the shaft surface of the movable block 10, and a connecting block 11 is installed on the bottom of the shaft surface of the telescopic rod 17. A third motor 14 is provided in the middle of the inside of the connecting block 11, a rotating shaft 15 is installed on the output end of the third motor 14, and a grinding disc 16 is inserted into the bottom of the shaft surface of the rotating shaft 15.

[0023] With the above scheme, after the second motor 12 starts, it drives the second threaded shaft 13 to rotate. The connecting block 11 and the second threaded shaft 13 are connected by threads, thereby realizing the vertical movement of the connecting block 11. At the same time, the telescopic rod 17 can assist the vertical movement of the connecting block 11, enhance the stability and guidance of the structure, and ensure that the grinding disc 16 can be accurately adjusted to the required grinding height. When the grinding disc 16 reaches the appropriate position, the third motor 14 starts, drives the rotating shaft 15 to rotate, and then makes the grinding disc 16 rotate at high speed to perform grinding operations on the shift head.

[0024] Working principle and implementation: First, the shift head is placed in the receiving space of the mounting cylinder 26. The mounting cylinder 26 supports the shift head, and two sets of positioning rods 28 limit the part from both sides to prevent horizontal movement. The limiting rod 29 is set between the two sets of positioning rods 28 to limit the displacement of the part in a specific direction. After starting the motor 25, the motor 25 drives the third rotating rod 27 to rotate, which in turn causes the rotating protrusion 30 to rotate. When the boss of the rotating protrusion 30 abuts against and pushes the bottom of the clamping plate 24, the clamping plate 24 rotates with the fourth rotating rod 31 as the rotation fulcrum, thereby pressing the shift head located in the mounting cylinder 26. The mounting cylinder 26, positioning rods 28, limiting rods 29, and clamping plate 24 together form multi-directional positioning for the shift head, completing the precise clamping of the part. Then, the fourth motor 18 is started, which drives the first rotating rod 19 to rotate the first bevel gear 20. Through meshing with the second bevel gear 21, the second rotating rod 22 rotates, which in turn drives the turntable 5 to rotate, realizing the synchronous rotation of multiple mounting cylinders 26 and internal shift heads, meeting the needs of rapid processing of multiple parts. In the grinding stage, the first motor 8 is started, driving the first threaded shaft 9 to rotate, so that the moving block 10 moves axially in the slot of the sliding frame 7 to adjust the horizontal position of the grinding component; then the second motor 12 is started, driving the second threaded shaft 13 to rotate, so that the connecting block 11 moves vertically, and the telescopic rod 17 assists in its stable lifting and lowering, adjusting the grinding disc 16 to a suitable grinding height; finally, the third motor 14 is started, driving the rotating shaft 15 to make the grinding disc 16 rotate at high speed to perform grinding operations on the shift heads.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grinding device for machining a gear shift head, comprising: The base (1) is characterized in that: a workbench (4) is installed at the top of the outer surface of the base (1), a turntable (5) is provided at the top of the outer surface of the workbench (4), a plurality of motors (25) are installed radially inside the turntable (5), a third rotating rod (27) is installed through the outer surface of the turntable (5) at the output end of the motor (25), and an installation cylinder (26) is inserted into the shaft surface of the third rotating rod (27). The installation cylinder (26) has a receiving space for accommodating the shift lever. Positioning rods (28) are installed on both sides of the bottom end of the installation cylinder (26). The positioning rods (28) are used to limit the shift lever on both sides. A limiting rod (29) is installed on one side of the shaft surface of the third rotating rod (27), and the limiting rod (29) is located between the two sets of positioning rods (28). The limiting rod (29) is used to limit the shift head in a specific direction. The top of the outer surface of the third rotating rod (27) is inserted with a rotating protrusion (30), and the two ends of the outer surface of the rotating protrusion (30) are provided with bosses. The shaft surface of the mounting cylinder (26) is inserted with a fourth rotating rod (31). The fourth rotating rod (31) serves as the rotation fulcrum of the clamping plate (24). The shaft surface of the fourth rotating rod (31) is inserted with a clamping plate (24), and the clamping plate (24) can rotate around the fourth rotating rod (31). The boss of the rotating protrusion (30) is located below the clamping plate (24). When the motor (25) drives the rotating protrusion (30) to rotate through the third rotating rod (27), the boss pushes the clamping plate (24) to rotate around the fourth rotating rod (31) and presses the shift head located in the mounting cylinder (26).

2. The grinding device for processing shift head according to claim 1, characterized in that: A second rotating rod (22) is installed at the middle of the bottom end of the shaft surface of the turntable (5). A second bevel gear (21) is installed at the bottom end of the shaft surface of the second rotating rod (22) through the outer surface of the turntable (5) and the worktable (4). A mounting plate (23) is installed at the middle end of the shaft surface of the second rotating rod (22).

3. The grinding device for processing shift head according to claim 2, characterized in that: The bottom of the outer surface of the second bevel gear (21) is meshed with the first bevel gear (20), the middle section of the outer surface of the first bevel gear (20) is inserted with the first rotating rod (19), and the bottom of the shaft surface of the first rotating rod (19) is fixedly installed with the fourth motor (18).

4. The grinding device for processing shift head according to claim 1, characterized in that: A mounting bracket (2) is installed at the top of the outer surface of the base (1), a mounting column (3) is installed at the bottom of the outer surface of the base (1), a mounting box (6) is installed on the left side of the inner side of the outer surface of the mounting bracket (2), a sliding bracket (7) is installed on one side of the inner side of the mounting box (6), and a slot is opened on the outer surface of the sliding bracket (7).

5. The grinding device for processing shift head according to claim 4, characterized in that: The first motor (8) is installed in the middle of the interior of the mounting box (6). The output end of the first motor (8) is fixedly installed with a first threaded shaft (9). A moving block (10) is threaded on the shaft surface of the first threaded shaft (9). A second motor (12) is installed on one side of the bottom of the outer surface of the moving block (10).

6. The grinding device for processing shift head according to claim 5, characterized in that: The output end of the second motor (12) is fixedly installed with a second threaded shaft (13), and a connecting block (11) is threadedly installed on the shaft surface of the second threaded shaft (13). A telescopic rod (17) is installed at the top of one side of the shaft surface of the moving block (10), and a connecting block (11) is installed at the bottom of the shaft surface of the telescopic rod (17).

7. The grinding device for processing shift head according to claim 6, characterized in that: The connecting block (11) has a third motor (14) installed in the middle of its interior. The output end of the third motor (14) is equipped with a rotating shaft (15), and a grinding disc (16) is inserted into the bottom end of the shaft surface of the rotating shaft (15).

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