Clamp for bearing production

Abstract

The utility model relates to a bearing production clamp which comprises a chuck, four sliding grooves are evenly formed in the periphery of the top face of the chuck, sliding blocks are installed in the four sliding grooves in a sliding mode respectively, arc-shaped supporting plates are fixedly installed on the sliding blocks, a rotating plate is rotationally connected with the chuck, and a clamping plate is fixedly installed on the rotating plate. The four right-angle connecting rods are rotationally connected between the rotating plate and the sliding blocks respectively, nuts are installed below the two opposite sliding blocks respectively, the two sides of the two-way lead screw are in threaded connection with the nuts respectively, and the two ends of the two-way lead screw penetrate through the side wall of the chuck respectively and are rotationally connected with the side wall of the chuck. The sliding block is used for driving the arc-shaped supporting plate to fix a bearing to be machined, fixing is stable, the clamp can conveniently rotate integrally to grind the bearing, the four-jaw chuck structure can achieve automatic centering of the bearing, and when the bearing is placed on the inner side or the outer side of the arc-shaped supporting plate to be clamped, the bearing can be fixed stably. And the inner wall and the outer wall of the bearing ring can be machined and ground conveniently.

Description

Technical Field

[0001] This utility model relates to the field of bearing manufacturing technology, and in particular to a fixture for bearing manufacturing. Background Technology

[0002] Bearings are core components in mechanical devices, primarily used to support rotating shafts and reduce friction, ensuring efficient and stable equipment operation. Their core functions include: bearing loads, reducing friction, and ensuring motion accuracy. The bearing manufacturing process requires separate grinding of the inner and outer rings; therefore, a device is needed to clamp the bearing during the inner and outer grinding processes. Utility Model Content

[0003] This utility model aims to address the shortcomings of existing technologies by providing a fixture for bearing production.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a bearing production fixture, comprising: a chuck, four sliders, a rotating plate, an arc-shaped support plate, four right-angle connecting rods, a bidirectional lead screw, a lead screw nut, and a servo motor. The chuck is a hollow box, and four grooves are evenly distributed around the top surface of the chuck. Sliders are slidably installed in the four grooves, and an arc-shaped support plate is fixedly installed on each slider. The rotating plate is located directly below the center of the top plate of the chuck and is rotatably connected to the chuck. One end of each of the four right-angle connecting rods is rotatably connected to the four corners of the rotating plate, and the other end is rotatably connected to the bottom of each of the four sliders. A lead screw nut is installed below each of two opposing sliders. The two sides of the bidirectional lead screw are screwed to the lead screw nut, and both ends of the bidirectional lead screw pass through the side wall of the chuck and are rotatably connected to the side wall of the chuck. The servo motor is fixedly installed on the side wall of one of the chucks, and the output end of the servo motor is fixedly connected to one end of the bidirectional lead screw.

[0005] Furthermore, four support legs are fixedly installed inside the chuck.

[0006] Furthermore, an inner rubber pad is fixedly provided on the inner side of each arc-shaped support plate, and an outer rubber pad is fixedly provided on the outer side of each arc-shaped support plate.

[0007] Furthermore, pressure sensors are provided between the inner rubber pad, the outer rubber pad, and the arc-shaped support plate.

[0008] Furthermore, it also includes a control system, which is electrically connected to the servo motor and the pressure sensor respectively.

[0009] The beneficial effects of this utility model are as follows: This utility model uses a bidirectional screw, a rotating plate, a right-angle connecting rod and other structures to drive the slider to move. The slider drives the arc-shaped support plate to fix the bearing to be processed. The fixation is stable and it is convenient for the fixture to rotate as a whole to grind the bearing. The four-jaw chuck structure can realize the automatic centering of the bearing. When the bearing is clamped on the inner or outer side of the arc-shaped support plate, it is convenient to process and grind the inner and outer walls of the bearing ring respectively. Attached Figure Description

[0010] Figure 1 This is a top view of the structure of this utility model;

[0011] Figure 2 This is a side sectional view of the present invention;

[0012] Figure 3 A bottom view of the inside of the chuck;

[0013] In the diagram: 1-Chuck; 2-Slider; 3-Rotating plate; 4-Arc-shaped support plate; 5-Right-angle connecting rod; 6-Double-direction lead screw; 7-Lead screw nut; 8-Servo motor; 9-Slide groove; 10-Support leg; 11-Inner rubber pad; 12-Outer rubber pad;

[0014] The accompanying drawings in this utility model are all schematic diagrams and their sizes do not represent actual dimensions.

[0015] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] like Figures 1-3As shown, a bearing manufacturing fixture includes: a chuck 1, four sliders 2, a rotating plate 3, an arc-shaped support plate 4, four right-angle connecting rods 5, a bidirectional lead screw 6, a lead screw nut 7, and a servo motor 8. The chuck 1 is a hollow box. Four grooves 9 are evenly distributed around the top surface of the chuck 1, and sliders 2 are slidably mounted in each of the four grooves 9. Arc-shaped support plates 4 are fixedly mounted on the sliders 2. The rotating plate 3 is located directly below the center of the top plate of the chuck 1 and is rotatably connected to the chuck 1. The four right-angle connecting rods... One end of the 5 is rotatably connected to the four corners of the rotating plate 3, and the other end is rotatably connected to the bottom of the four sliders 2. A lead screw 7 is installed below each of the two opposing sliders 2. Both sides of the bidirectional lead screw 6 are screwed to the lead screw 7. Both ends of the bidirectional lead screw 6 pass through the sidewall of the chuck 1 and are rotatably connected to the sidewall of the chuck 1. The servo motor 8 is fixedly installed on the sidewall of one of the chucks 1, and its output end is fixedly connected to one end of the bidirectional lead screw 6. According to the processing requirements, the bearing is placed inside or outside the arc-shaped support plate 4. The servo motor 8 is turned on, driving the bidirectional lead screw 6 to rotate. The two lead screw nuts 7 move relative to each other along the bidirectional lead screw 6, and the connected sliders 2 move along the slide groove 9, driving the connected right-angle connecting rod 5, indirectly driving the rotating plate 3 to rotate. This then drives the other two right-angle connecting rods 5 to rotate, driving the other two sliders 2 to move, so that the arc-shaped support plate 4 contacts the bearing and securely fixes the bearing.

[0018] Four support legs 10 are fixedly installed inside the chuck 1 to enhance its stability.

[0019] Inner rubber pads 11 are fixedly installed on the inner side of each arc-shaped support plate 4, and outer rubber pads 12 are fixedly installed on the outer side of each arc-shaped support plate 4. The rubber pads enhance the friction between the bearing and the arc-shaped support plate 4, increasing the stability of the clamping mechanism.

[0020] Pressure sensors are installed between the inner rubber pad 11, the outer rubber pad 12, and the arc-shaped support plate 4. The stability of the clamping is detected by the pressure sensors.

[0021] It also includes a control system, which is electrically connected to the servo motor 8 and the pressure sensor. The controller system is a microcontroller, specifically an STM32F104 microcontroller. The output terminal of the pressure sensor is connected to the input terminal of the microcontroller. The control system performs logical judgments on the data transmitted by the pressure sensor, and when the value exceeds a set value, the control system shuts off the power to the servo motor 8.

[0022] The method of using this utility model is as follows: according to the processing requirements, the bearing is placed on the inner or outer side of the arc-shaped support plate 4, the servo motor 8 is turned on, driving the bidirectional lead screw 6 to rotate, the two lead screw nuts 7 move relative to each other along the bidirectional lead screw 6, the connected slider 2 moves along the slide groove 9, driving the connected right-angle connecting rod 5, indirectly driving the rotating plate 3 to rotate, and then driving the other two right-angle connecting rods 5 to rotate, driving the other two sliders 2 to move, so that the arc-shaped support plate 4 contacts the bearing. When the value detected by the pressure sensor reaches the set value, the control system turns off the servo motor 8. At this time, the arc-shaped support plate 4 can fix the bearing firmly.

[0023] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fixture for bearing production, characterized in that, Include: Chuck (1), four sliders (2), rotating plate (3), arc support plate (4), four right angle connecting rods (5), bidirectional screw (6), nut (7), servo motor (8), the chuck (1) is hollow box, the chuck (1) top surface four around evenly provided with four slide grooves (9), four the slide groove (9) is slidably installed with slider (2) respectively, the slider (2) is fixedly installed with arc support plate (4), the rotating plate (3) is set in the chuck (1) top plate center position directly below, with the chuck (1) rotation is connected, four the right angle connecting rod (5) one end is rotationally connected in the rotating plate (3) four corners, the other end is rotationally connected in four the slider (2) below, wherein the slider (2) below opposite two are installed with nut (7) respectively, the two sides of bidirectional screw (6) are respectively with the nut (7) screw joint, the two ends of bidirectional screw (6) are respectively through the side wall of chuck (1) and with the side wall of chuck (1) rotation is connected, the servo motor (8) is fixedly installed in one of the chuck (1) side wall, the output end of servo motor (8) is fixedly connected with the one end of bidirectional screw (6).

2. The jig for bearing production according to claim 1, wherein The chuck (1) is fixedly installed with four supporting legs (10) inside.

3. The jig for producing a bearing according to claim 1, wherein The inner side of the arc support plate (4) is fixedly provided with an inner rubber pad (11), and the outer side of the arc support plate (4) is fixedly provided with an outer rubber pad (12).

4. The jig for producing a bearing according to claim 3, wherein The inner rubber pad (11), the outer rubber pad (12) and the arc support plate (4) are provided with pressure sensors.

5. The jig for producing a bearing according to claim 4, wherein It also includes a control system, the control system is respectively with servo motor (8), pressure sensor electric connection.

Images