Gear disc positioning tool

Abstract

The gear disc positioning tool comprises a base, clamping assemblies and a rotating motor, the two clamping assemblies are installed at the upper end of the base in a mirror symmetry mode, the rotating motor is installed at the lower end of the base, the output end of the rotating motor movably penetrates through the base through a bearing, and the output end of the rotating motor is located between the two clamping assemblies. The clamping assembly comprises a clamping air cylinder, guide rails, a mounting frame, a clamping jaw and a pressing air cylinder, the two guide rails are installed at the two ends of the base side by side, the mounting frame is movably installed on the guide rails, the clamping air cylinder is installed on the base, and the output end of the clamping air cylinder is connected with the mounting frame to drive the mounting frame to do reciprocating linear motion along the guide rails. The clamping jaws are installed on the side, away from the clamping air cylinder, of the installation frame, the clamping jaws of the two clamping assemblies are right opposite, the pressing air cylinder is vertically installed on the installation frame, and the output end of the pressing air cylinder faces downwards. The rotating motor is used for driving the workpiece to rotate, the clamping assembly can clamp the workpiece horizontally and vertically in two directions, and deviation and dislocation of the workpiece are prevented.

Description

Technical Field

[0001] This utility model relates to the field of machining tooling technology, and in particular to a gear disk positioning tooling. Background Technology

[0002] During the manufacturing process of gear disks, clamping fixtures are required to assist in clamping and fixing them, allowing for drilling or grinding of their surfaces. For gear disks with gear structures on their surfaces, there are various clamping methods. These include fitting the gear disk's circumference against a limiting component, or using two sets of clamps that simultaneously move towards the centrally located gear disk to clamp and fix it. For example, application number 202322089125 discloses a gear positioning clamping fixture, which provides a technical solution for centering and clamping a gear disk. This solution uses a single power output, which is energy-efficient, but it doesn't address how to rotate the gear disk when it has a gear structure on the clamping surface. Rotating the gear disk for drilling or surface polishing is a common process step. The above solution cannot rotate the workpiece for machining, and in single-power mode, the clamping force is relatively small, leading to unstable workpiece clamping. Therefore, further improvements are needed. Utility Model Content

[0003] Therefore, it is necessary to provide a gear disk positioning fixture to address the above problems.

[0004] A gear disk positioning fixture includes a base, clamping assemblies, and a rotary motor. Two sets of clamping assemblies are mirror-symmetrically mounted on the upper end of the base. The rotary motor is mounted on the lower end of the base, and its output end movably passes through the base via a bearing. The output end of the rotary motor is located in the middle of the two sets of clamping assemblies. Each clamping assembly includes a clamping cylinder, guide rails, a mounting bracket, grippers, and a pressing cylinder. Two guide rails are mounted side-by-side at both ends of the base. The mounting bracket is movably mounted on the guide rails. The clamping cylinder is mounted on the base, and its output end is connected to the mounting bracket, driving the mounting bracket to perform reciprocating linear motion along the guide rails. The grippers are mounted on the side of the mounting bracket away from the clamping cylinder. The grippers of the two sets of clamping assemblies are facing each other. The pressing cylinder is vertically mounted on the mounting bracket, and its output end faces downward.

[0005] Preferably, the base is hollow, and a number of floating balls are arranged in a ring on the upper surface of the base, the floating balls being disposed between the two sets of clamping components.

[0006] Preferably, a rubber pad is provided on the output end of the clamping cylinder.

[0007] Preferably, the grippers are arc-shaped, and several rollers are movably mounted on the inner arc surfaces of the two grippers.

[0008] Preferably, the output end of the clamping cylinder and the mounting bracket are provided with guide posts.

[0009] The advantages of this invention are: by using a rotary motor to drive the workpiece to rotate, the clamping assembly can clamp the workpiece in both horizontal and vertical directions, preventing the workpiece from shifting or misaligning during processing. Attached Figure Description

[0010] Figure 1 This is a three-dimensional schematic diagram of a gear disk positioning fixture according to one embodiment;

[0011] Figure 2 This is a top view schematic diagram of a gear disk positioning fixture. Detailed Implementation

[0012] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0013] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0015] like Figures 1-2As shown, a gear disk positioning fixture includes a base 1, clamping components 2, and a rotary motor 3. Two sets of clamping components 2 are mirror-symmetrically mounted on the upper end of the base 1. The rotary motor 3 is mounted on the lower end of the base 1, and its output end passes through the base 1 via a bearing. The output end of the rotary motor 3 is located in the middle of the two sets of clamping components 2. The clamping component 2 includes a clamping cylinder 21, a guide rail 22, a mounting frame 23, grippers 24, and a pressing cylinder 25. The two guide rails 22 are mounted side by side at both ends of the base 11. The mounting frame 23 is movably mounted on the guide rails 22. The clamping cylinder 21 is mounted on the base 1, and its output end is connected to the mounting frame 23, driving the mounting frame 23 to perform reciprocating linear motion along the guide rails 22. The grippers 24 are mounted on the side of the mounting frame 23 away from the clamping cylinder 21. The grippers 24 of the two sets of clamping components 2 are facing each other. The pressing cylinder 25 is vertically mounted on the mounting frame 23, and its output end faces downward. Specifically, in this embodiment, two sets of clamping components 2 are arranged opposite to each other to clamp the workpiece (not shown in the figure). The workpiece is disc-shaped. To enable subsequent polishing, spraying, and even drilling operations on the workpiece, a rotary motor 3 is used to drive the workpiece to rotate. The rotary motor 3 is installed under the base 1, and its output end passes through the base 1 through a bearing. The output end of the rotary motor 3 is inserted into the shaft hole of the workpiece, which drives the workpiece to rotate on the base 1. When the workpiece rotates to the designated position, the two sets of clamping components 2 move relative to each other, thus clamping the workpiece. The specific process is as follows: the output end of the clamping cylinder 21 extends, driving the mounting frame 23 to move, which in turn drives the jaws 24 to move towards each other. The jaws 24 can then clamp the circumference of the workpiece. At this time, the two jaws 24 apply a horizontal clamping force to the workpiece. To prevent axial movement of the workpiece during processing, a pressure cylinder 25 is installed on the mounting frame 23 with its output end facing downward. After the workpiece is clamped, the output end of the pressure cylinder 25 descends, cooperating with the base 1, to press the workpiece vertically and prevent it from moving.

[0016] like Figures 1-2 As shown, the base 1 is hollow, and several floating balls 11 are arranged in a ring on the upper surface of the base 1. The floating balls 11 are positioned between the two sets of clamping assemblies 2. Specifically, the base 1 is hollow and connected to a back-end air compressor through a pipe, which blows in high-pressure gas, causing the floating balls 11 to float. Part of the spherical part of the floating ball 11 protrudes and contacts the lower end surface of the workpiece. When the workpiece rotates, this reduces the resistance to rotation. When the workpiece is being processed, the clamping cylinder 25 applies a vertical pressure to the workpiece, causing the workpiece to press down. The floating balls 11 then retract into the base 1, allowing the workpiece to contact the surface of the base 1. This ensures that the base 1 can provide support and frictional resistance to prevent the workpiece from rotating during processing.

[0017] like Figure 1As shown, a rubber pad 251 is provided on the output end of the clamping cylinder 25. Specifically, when the output end of the clamping cylinder 25 is pressed down and acts on the surface of the workpiece, the rubber pad 251 makes flexible contact with the surface of the workpiece to avoid hard contact and scratching the surface of the workpiece, and increases the friction on the workpiece to prevent it from rotating during polishing or spraying operations.

[0018] like Figures 1-2 As shown, the grippers 24 are arc-shaped, and several rollers 241 are movably mounted on the inner arc surfaces of the two grippers 24. Specifically, the two grippers 24 hold the workpiece and contact the outer peripheral surface of the disc-shaped workpiece. At this time, the rollers 241 are in rolling friction contact with the outer peripheral surface of the workpiece. When the rotary motor 3 drives the workpiece to rotate, the two grippers 24 hold the workpiece through the rollers 241, preventing the workpiece from flying off during rotation and reducing the friction between the workpiece and the grippers 24. This makes the rotary motor 3 more labor-saving and reduces its energy consumption.

[0019] like Figures 1-2 As shown, the output end of the clamping cylinder 21 and the mounting bracket 23 are provided with guide posts 211, which are used to guide the output end of the clamping cylinder 21 during reciprocating motion and prevent deviation.

[0020] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gear disk positioning fixture, characterized in that: The device includes a base, clamping components, and a rotary motor. Two sets of clamping components are mirror-symmetrically mounted on the upper end of the base. The rotary motor is mounted on the lower end of the base, and its output end passes through the base via a bearing. The output end of the rotary motor is located in the middle of the two sets of clamping components. Each clamping component includes a clamping cylinder, guide rails, a mounting bracket, grippers, and a pressing cylinder. Two guide rails are mounted side-by-side at both ends of the base. The mounting bracket is movably mounted on the guide rails. The clamping cylinder is mounted on the base, and its output end is connected to the mounting bracket, driving the mounting bracket to perform reciprocating linear motion along the guide rails. The grippers are mounted on the side of the mounting bracket away from the clamping cylinder. The grippers of the two sets of clamping components are facing each other. The pressing cylinder is mounted vertically on the mounting bracket, and its output end faces downward.

2. The gear disk positioning fixture as described in claim 1, characterized in that: The base is hollow, and several floating balls are arranged in a ring on the upper surface of the base. The floating balls are disposed between the two sets of clamping components.

3. The gear disk positioning fixture as described in claim 1, characterized in that: A rubber pad is provided on the output end of the clamping cylinder.

4. The gear disk positioning fixture as described in claim 1, characterized in that: The grippers are arc-shaped, and several rollers are movably mounted on the inner arc surfaces of the two grippers.

5. The gear disk positioning fixture as described in claim 1, characterized in that: The output end of the clamping cylinder and the mounting bracket are provided with guide posts.

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