Balance shaft gear hole machining device

Abstract

This utility model relates to the field of gear hole machining technology, specifically to a device for machining balance shaft gear holes. It includes a connecting plate with several limiting grooves on one side. A gripper slides within these grooves. A worm gear ring rotates inside the connecting plate, with spiral teeth fixed to one side. Several arc-shaped tooth grooves meshing with the spiral teeth are formed on one side of the gripper. A worm rotates inside the connecting plate, meshing with the worm gear ring. A slot is formed at one end of the gripper, with a pair of positioning blocks rotating within it. A gear body is clamped between the grippers. This utility model solves the problem that in existing gear machining, machine tool clamps often grip only the outer edge of the gear, making single-tooth clamping prone to displacement. Furthermore, the self-locking mechanism between the grippers and the spiral teeth inevitably leads to loosening over time.

Description

Technical Field

[0001] This utility model relates to the field of gear hole processing technology, specifically to a device for processing balance shaft gear holes. Background Technology

[0002] The machining of balance shaft gear holes usually involves drilling to form the basic hole, followed by reaming to improve the dimensional accuracy and surface quality of the hole.

[0003] When machining gear holes, the gear is usually fixed on the machine tool first using a chuck, and then the gear hole on the side of the gear is machined using a cutting tool. The sides of the jaws in the chuck are usually flat or have anti-slip grooves. However, when clamping gears, the jaws in existing machine tool fixtures can generally only clamp the outermost edge of the gear. When clamping a single tooth, displacement can easily occur during the machining process. Furthermore, three-jaw chucks generally move the jaws by meshing the large and small bevel gears and spiral teeth inside the chuck. However, relying solely on the self-locking between the jaws and spiral teeth will inevitably lead to loosening over time, affecting the clamping effect. Utility Model Content

[0004] The technical problem this invention aims to solve is that in existing gear processing, the machine tool clamps often grip the outer edge of the gear, and clamping a single tooth can easily lead to displacement. Furthermore, the self-locking mechanism between the clamps and the spiral teeth inevitably results in loosening over time.

[0005] To solve the above problems, the technical solution adopted by this utility model is a balance shaft gear hole processing device, including a connecting plate. Several limiting grooves are opened on one side of the connecting plate, and a gripper is slidably arranged in the limiting groove. A worm gear ring is rotatably arranged inside the connecting plate. A spiral tooth is fixed on one side of the worm gear ring. Several arc-shaped tooth grooves that mesh with the spiral tooth are opened on one side of the gripper. A worm is rotatably arranged inside the connecting plate that meshes with the worm gear ring. A slot is opened at one end of the gripper, and a pair of positioning blocks are rotatably arranged in the slot. A gear body is clamped between the grippers.

[0006] As a further embodiment of this utility model: an internal hexagonal adjustment head is fixed to one end of the worm gear, which facilitates the rotation of the worm gear by using a hexagonal screwdriver.

[0007] As a further embodiment of this utility model: one end of a pair of positioning blocks is abutted against the bottom end of the adjacent tooth groove on the side of the gear body, which can tightly clamp the gear body.

[0008] As a further embodiment of this utility model: a machine tool is provided on one side of the connecting plate, and the connecting plate is fixed to the output end of the machine tool to facilitate its rotation.

[0009] As a further embodiment of this utility model, the central axis of the gear body is aligned with the central axis of the connecting disc, which facilitates precise machining of the gear hole in the gear body.

[0010] Compared with the prior art, the advantages of this utility model are as follows: This application adds a positioning block structure, which can be locked in the tooth groove of the gear body to secure the gear tightly. Through the worm gear structure, the gripper is driven to move. The self-locking between the worm gears further improves the gripper's anti-loosening ability and extends its service life. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a partial structural cross-sectional view of the balance shaft gear hole machining device of this utility model.

[0013] Figure 2 This is a schematic diagram showing the position of the positioning block in the balance shaft gear hole machining device of this utility model.

[0014] Figure 3 This is a three-dimensional view of the overall structure of the balance shaft gear hole machining device of this utility model.

[0015] Figure 4 This is a perspective view of the worm gear ring in the balance shaft gear hole machining device of this utility model.

[0016] Figure 5 This is an enlarged view of part A of the balance shaft gear hole machining device of this utility model.

[0017] In the attached image:

[0018] 1. Connecting disc; 2. Clamping jaws; 3. Worm gear ring; 4. Spiral teeth; 5. Worm; 6. Positioning block; 7. Gear body; 8. Internal hexagonal adjustment head; 9. Machine tool; 1.1. Limiting groove; 2.1. Arc-shaped tooth groove; 2.2. Groove opening. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0021] Combined with appendix Figure 1-5 It can be seen that the connection includes a connecting plate 1, a machine tool 9 is provided on one side of the connecting plate 1, and the connecting plate 1 is fixed to the output end of the machine tool 9 to facilitate its rotation. Several limiting grooves 1.1 are opened on one side of the connecting plate 1, and a gripper 2 is slidably provided in the limiting grooves 1.1. A worm gear ring 3 is rotatably provided inside the connecting plate 1. A spiral tooth 4 is fixed on one side of the worm gear ring 3. Several arc-shaped tooth grooves 2.1 that mesh with the spiral tooth 4 are opened on one side of the gripper 2. The rotation of the worm gear ring 3 drives the spiral tooth 4 to rotate, thereby driving the spiral tooth 4 to rotate, so as to synchronously drive several grippers 2 to move. A worm 5 that meshes with the worm gear ring 3 is rotatably provided inside the connecting plate 1, which can drive the worm gear ring 3 to rotate. An internal hexagon adjustment head 8 is fixed at one end of the worm 5, which facilitates the rotation of the worm 5 by using a hexagon screwdriver.

[0022] Combined with appendix Figure 2 The gripper 2 has a slot 2.2 at one end, and a pair of positioning blocks 6 are rotatably arranged in the slot 2.2. The gear body 7 is clamped between the grippers 2. One end of the pair of positioning blocks 6 abuts against the bottom end of the adjacent tooth groove on the side of the gear body 7, which can tightly clamp the gear body 7. The central axis of the gear body 7 is aligned with the central axis of the connecting plate 1, which facilitates the precise machining of the gear hole of the gear body 7.

[0023] The working principle of this application is as follows: When machining the gear hole of the gear body 7, the gear body 7 is first placed next to the connecting plate 1. Then, the worm 5 is rotated to drive the worm wheel ring 3 to rotate, so as to drive the spiral teeth 4 to rotate, thereby driving the three sets of grippers 2 to move synchronously, so that the positioning block 6 approaches the gear groove of the gear body 7. Then, one end of a pair of positioning blocks 6 is placed against the bottom end of the adjacent tooth groove on the side of the gear body 7, so that the gear body 7 can be tightly fixed. Furthermore, through the self-locking of the worm wheel ring 3 and the worm 5, and the self-locking of the grippers 2 and the spiral teeth 4, the grippers 2 can be prevented from loosening, improving service life and facilitating the machining of the gear hole.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for machining a crankshaft gear hole, comprising a connecting plate (1), characterized in that: The connecting disk (1) has several limiting grooves (1.1) on one side, and a gripper (2) is slidably provided in the limiting groove (1.1). A worm gear ring (3) is rotatably provided inside the connecting disk (1). A spiral tooth (4) is fixed on one side of the worm gear ring (3). Several arc-shaped tooth grooves (2.1) that mesh with the spiral tooth (4) are provided on one side of the gripper (2). A worm (5) that meshes with the worm gear ring (3) is rotatably provided inside the connecting disk (1). A slot (2.2) is provided at one end of the gripper (2). A pair of positioning blocks (6) are rotatably provided in the slot (2.2). A gear body (7) is clamped between the grippers (2).

2. The balanced axle gear hole machining apparatus according to claim 1, characterized by: One end of the worm gear (5) is fixed with an internal hexagonal adjustment head (8).

3. The balanced axle gear hole machining apparatus of claim 1, wherein: One end of each of the positioning blocks (6) abuts against the bottom end of the adjacent tooth groove on the side of the gear body (7).

4. The balance shaft gear hole machining device according to claim 1, characterized in that: A machine tool (9) is provided on one side of the connecting plate (1), and the connecting plate (1) is fixed to the output end of the machine tool (9).

5. The balance shaft gear hole machining device according to claim 1, characterized in that: The central axis of the gear body (7) is aligned with the central axis of the connecting disc (1).

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