A machining device for the inner bore of a metallurgical bearing

Abstract

This utility model relates to the field of metallurgical bearing processing technology and discloses a processing device for the inner hole of a metallurgical bearing. The device includes a worktable, a positioning mechanism, a pressing mechanism, and a conveying mechanism on the top of the worktable. A sliding groove is formed on the surface of the worktable, and a controller is fixed to the top of the worktable. The positioning mechanism includes a first electric cylinder fixed to the bottom of the worktable surface. A placement plate is fixed to one end of the first electric cylinder, and the placement plate is slidably connected to the surface of the sliding groove. Three adjusting grooves are formed on the surface of the placement plate, and limit plates are slidably connected to the surfaces of the adjusting grooves. A mounting frame is fixed to the bottom of the placement plate, and a motor is fixed to the surface of the mounting frame. The output shaft of the motor passes through the mounting frame and is fixed with a lead screw. This processing device for the inner hole of a metallurgical bearing significantly improves its adaptability to bearings of different sizes through a combination of three-point synchronous radial clamping and electric cylinder drive.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical bearing processing technology, specifically to a processing device for the inner hole of a metallurgical bearing. Background Technology

[0002] Metallurgical bearings typically require shaping of their inner bores, primarily because dimensional deviations or uneven and rough surfaces may occur during processing or use. Shaping can improve surface quality, enhance bearing performance, and extend bearing life. Currently, mechanical extrusion is commonly used for shaping the inner bores. This involves applying pressure to the bearing's inner bore using extrusion equipment, causing plastic deformation to achieve the shaping purpose.

[0003] In the existing equipment, the bearing needs to be positioned first during the shaping process, and then transported to the stamping equipment for stamping and shaping. However, since most of the positioning devices for metallurgical bearings are of fixed size, they cannot meet the processing requirements of metallurgical bearings of different sizes. Therefore, we propose a processing device for the inner hole of metallurgical bearings. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a processing device for the inner hole of metallurgical bearings to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a processing device for the inner hole of a metallurgical bearing, including a worktable, a positioning mechanism, a pressing mechanism and a conveying mechanism are provided on the top of the worktable, a sliding groove is provided on the surface of the worktable, and a controller is fixed on the top of the worktable;

[0006] The positioning mechanism includes a first electric cylinder, which is fixed to the bottom of the worktable surface. A placement plate is fixed to one end of the first electric cylinder. The placement plate is slidably connected to the surface of the slide groove. Three adjustment grooves are opened on the surface of the placement plate. A limit plate is slidably connected to the surface of the adjustment grooves. A mounting frame is fixed to the bottom of the placement plate. A motor is fixed to the surface of the mounting frame. The output shaft of the motor passes through the mounting frame and is fixed with a lead screw. The top end of the lead screw is rotatably connected to the bottom of the placement plate. A threaded sleeve is threaded to the surface of the lead screw. Three connecting rods are hinged to the surface of the threaded sleeve. The surface of the connecting rods is hinged to the bottom of the limit plate.

[0007] Preferably, the pressing mechanism includes an L-shaped plate, which is fixed to the top of the workbench. A first cylinder is fixed to the top of the L-shaped plate. One end of the first cylinder passes through the L-shaped plate and is fixed to a mounting plate. A mounting head is fixed to the bottom of the mounting plate. A connecting shell is threaded onto the surface of the mounting head. A pressing head is fixed to the bottom of the connecting shell.

[0008] Preferably, the conveying mechanism includes a conveyor and a mounting slot. The mounting slot is formed on the surface of the workbench. The conveyor is fixedly connected to the surface of the mounting slot. A second cylinder is fixed on the top of the workbench. A push plate is fixed to one end of the second cylinder. The second cylinder is located behind the conveyor. The conveyor is located behind the placement plate.

[0009] Preferably, a guide rod is fixed to the inner wall of the adjusting groove, and the limiting plate is slidably connected to the surface of the guide rod.

[0010] Preferably, guide plates are fixed on both the front and rear sides of the inner wall of the chute, and movable grooves are opened on both the front and rear sides of the surface of the placement plate, and the movable grooves are slidably connected to the surface of the guide plates.

[0011] Preferably, a second electric cylinder is provided on the left side of the conveyor. The second electric cylinder is fixedly connected to the top of the workbench. A pressure sensor is fixed to one end of the second electric cylinder, and a baffle is fixed to the surface of the pressure sensor.

[0012] Preferably, the top of the L-shaped plate has two guide rods that slide through it, and the bottom of the guide rods is fixedly connected to the top of the mounting plate.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] First, this utility model significantly improves the adaptability to bearings of different sizes through a combination of three-point synchronous radial clamping and electric cylinder drive. The linkage mechanism of the limit plate achieves multi-directional synchronous adjustment under the drive of a single power source, reducing the complexity of the equipment and ensuring the stability of the bearing during shaping.

[0015] Secondly, in this utility model, the piston rod of the first cylinder drives the mounting plate to move vertically, and the mounting head and the connecting shell are connected by threads to realize the quick replacement of the extrusion head, so as to meet the shaping needs of bearing inner holes of different diameters. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning mechanism in this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the positioning mechanism in this utility model;

[0019] Figure 4 This is a schematic diagram of the lower pressing mechanism in this utility model;

[0020] Figure 5 This is a schematic diagram of the conveying mechanism in this utility model.

[0021] The components include: 1. Workbench; 2. Positioning mechanism; 201. First electric cylinder; 202. Placement plate; 203. Adjustment groove; 204. Limiting plate; 205. Mounting bracket; 206. Motor; 207. Lead screw; 208. Screw sleeve; 209. Connecting rod; 210. Guide rod; 211. Moving groove; 3. Pressing mechanism; 301. L-shaped plate; 302. First cylinder; 303. Mounting plate; 304. Mounting head; 305. Connecting shell; 306. Extrusion head; 307. Guide rod; 4. Conveying mechanism; 401. Conveyor; 402. Mounting groove; 403. Second cylinder; 404. Push plate; 405. Second electric cylinder; 406. Pressure sensor; 407. Baffle; 5. Slide groove; 6. Controller; 7. Guide plate. Detailed Implementation

[0022] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0023] Please see Figure 1-5 A processing device for the inner hole of a metallurgical bearing includes a worktable 1, a positioning mechanism 2, a pressing mechanism 3 and a conveying mechanism 4 on the top of the worktable 1, a sliding groove 5 on the surface of the worktable 1, and a controller 6 fixed on the top of the worktable 1.

[0024] The positioning mechanism 2 includes a first electric cylinder 201, which is fixed to the bottom of the worktable 1. One end of the first electric cylinder 201 is fixed to a placement plate 202, which is slidably connected to the surface of the slide groove 5. Three adjustment grooves 203 are provided on the surface of the placement plate 202, and a limit plate 204 is slidably connected to the surface of the adjustment grooves 203. A mounting frame 205 is fixed to the bottom of the placement plate 202, and a motor 206 is fixed to the surface of the mounting frame 205. The output shaft of the motor 206 passes through the mounting frame 205 and is fixed to a lead screw 207. The top end of the lead screw 207 is rotatably connected to the bottom of the placement plate 202. A threaded sleeve 208 is threaded to the surface of the lead screw 207, and three connecting rods 209 are hinged to the surface of the threaded sleeve 208. The surface of the connecting rods 209 is hinged to the bottom of the limit plate 204.

[0025] With the above technical solution, when the motor 206 drives the lead screw 207 to rotate, the screw sleeve 208 moves along the axial direction of the lead screw 207. Through the hinged connecting rod 209, it drives the three limiting plates 204 to move radially in sync, forming a triangular clamping structure. By converting the input of a single motor 206 into synchronous displacement in three directions, it achieves precise clamping of bearings of different diameters, breaking through the limitations of traditional fixed-size positioning. Moreover, the setting of the three limiting plates 204 allows the empty rear notch to be properly inserted into the bearing. After the bearing is inserted, the first electric cylinder 201 can push the placement plate 202 under the pressing mechanism 3, so that the pressing mechanism 3 can perform shaping operation on the positioned bearing.

[0026] The pressing mechanism 3 includes an L-shaped plate 301, which is fixed to the top of the workbench 1. A first cylinder 302 is fixed to the top of the L-shaped plate 301. One end of the first cylinder 302 passes through the L-shaped plate 301 and is fixed to a mounting plate 303. A mounting head 304 is fixed to the bottom of the mounting plate 303. A connecting shell 305 is threaded onto the surface of the mounting head 304. A pressing head 306 is fixed to the bottom of the connecting shell 305.

[0027] Through the above technical solution, the piston rod of the first cylinder 302 drives the mounting plate 303 to move vertically, and the mounting head 304 and the connecting shell 305 are connected by threads to realize the quick replacement of the extrusion head 306, so as to meet the shaping requirements of bearing inner holes of different diameters.

[0028] The conveying mechanism 4 includes a conveyor 401 and a mounting groove 402. The mounting groove 402 is formed on the surface of the workbench 1. The conveyor 401 is fixedly connected to the surface of the mounting groove 402. A second cylinder 403 is fixed on the top of the workbench 1. A push plate 404 is fixed to one end of the second cylinder 403. The second cylinder 403 is located behind the conveyor 401. The conveyor 401 is located behind the placement plate 202.

[0029] Through the above technical solution, the conveyor 401 transports the bearing to the rear side of the placement plate 202, and the second cylinder 403 drives the pusher plate 404 to push the bearing into the placement plate 202 to position the workpiece, thereby realizing automatic feeding of the bearing and improving processing efficiency.

[0030] A guide rod 210 is fixed to the inner wall of the adjusting groove 203, and the limiting plate 204 is slidably connected to the surface of the guide rod 210.

[0031] Through the above technical solution, the guide rod 210 restricts the degree of freedom through the sliding pair, ensuring that the limiting plate 204 moves only in the predetermined direction and preventing the limiting plate 204 from disengaging from the adjustment groove 203.

[0032] Guide plates 7 are fixed on both the front and rear sides of the inner wall of the slide 5, and movable grooves 211 are opened on both the front and rear sides of the surface of the placement plate 202. The movable grooves 211 are slidably connected to the surface of the guide plates 7.

[0033] Through the above technical solution, the placement plate 202 can slide on the surface of the slide groove 5, ensuring that the placement plate 202 can move in a straight line.

[0034] A second electric cylinder 405 is provided on the left side of the conveyor 401. The second electric cylinder 405 is fixedly connected to the top of the workbench 1. A pressure sensor 406 is fixed to one end of the second electric cylinder 405. A baffle 407 is fixed to the surface of the pressure sensor 406.

[0035] Through the above technical solution, the second electric cylinder 405 drives the baffle 407 to move laterally, and the pressure sensor 406 detects the bearing contact pressure and transmits the signal to the controller 6. This design can build an adaptive interception system, which dynamically adjusts the position of the baffle 407 according to the bearing size to ensure that the position of the baffle 407 matches the position of the leftmost limit plate 204, thereby ensuring that the bearing can be accurately delivered between multiple limit plates 204.

[0036] Two guide rods 307 slide through the top of the L-shaped plate 301, and the bottom of the guide rods 307 are fixedly connected to the top of the mounting plate 303.

[0037] Through the above technical solution, the guide rod 307 constrains the motion freedom of the mounting plate 303 through the sliding pair, ensuring that the mounting plate 303 moves only along a straight line, thereby improving the stamping accuracy.

[0038] Working principle: First, adjust according to the bearing diameter, disassemble the connecting shell 305 and the mounting head 304, then select a matching extrusion head 306, and install the extrusion head 306 onto the surface of the mounting head 304 through the connecting shell 305. Next, adjust the motor 206 to make multiple limit plates 204 move synchronously to meet the bearing placement requirements. Then, adjust the second electric cylinder 405 to match the position of the baffle 407 with the position of the leftmost limit plate 204, and processing can begin. During processing, the conveyor 401 transports the bearing to the surface of the baffle 407. The pressure sensor 406 detects bearing contact and feeds back to the controller 6, which then operates the second cylinder 403. The drive pusher plate 404 pushes the bearing into the positioning area of ​​the placement plate 202. The positioning mechanism 2 is activated, and the motor 206 drives the lead screw 207 to rotate, which drives the screw sleeve 208 to move axially. Through the connecting rod 209, the three limit plates 204 move radially synchronously along the guide rod 210 to form a three-point positioning and clamping of the bearing. Then, the first electric cylinder 201 is activated, which moves the placement plate 202 along with the bearing to below the extrusion head 306. The first air cylinder 302 pushes the mounting plate 303 downward. The guide rod 307 ensures that the extrusion head 306 enters the bearing inner hole vertically, completing the stamping and shaping of the bearing inner hole. After that, the bearing is removed, and the first air cylinder 302, the first electric cylinder 201 and the limit plate 204 are reset, so that the next round of processing can be carried out.

[0039] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining apparatus for the inner hole of a metallurgical bearing, comprising a worktable (1), characterized in that: The workbench (1) is provided with a positioning mechanism (2), a pressing mechanism (3) and a conveying mechanism (4) on its top. The workbench (1) has a sliding groove (5) on its surface. The workbench (1) is fixed with a controller (6) on its top. The positioning mechanism (2) includes a first electric cylinder (201), which is fixed to the bottom of the workbench (1). A placement plate (202) is fixed to one end of the first electric cylinder (201). The placement plate (202) is slidably connected to the surface of the slide groove (5). Three adjustment grooves (203) are provided on the surface of the placement plate (202). Limiting plates (204) are slidably connected to the surface of the adjustment grooves (203). An installation device is fixed to the bottom of the placement plate (202). The mounting bracket (205) has a motor (206) fixed on its surface. The output shaft of the motor (206) passes through the mounting bracket (205) and is fixed with a lead screw (207). The top end of the lead screw (207) is rotatably connected to the bottom of the placement plate (202). The surface of the lead screw (207) is threaded with a threaded sleeve (208). The surface of the threaded sleeve (208) is hinged with three connecting rods (209). The surface of the connecting rods (209) is hinged to the bottom of the limiting plate (204).

2. The processing device for the inner hole of a metallurgical bearing according to claim 1, characterized in that: The pressing mechanism (3) includes an L-shaped plate (301), which is fixed to the top of the workbench (1). A first cylinder (302) is fixed to the top of the L-shaped plate (301). One end of the first cylinder (302) passes through the L-shaped plate (301) and is fixed to a mounting plate (303). A mounting head (304) is fixed to the bottom of the mounting plate (303). A connecting shell (305) is threaded onto the surface of the mounting head (304). A pressing head (306) is fixed to the bottom of the connecting shell (305).

3. The processing apparatus for the inner hole of a metallurgical bearing according to claim 1, characterized in that: The conveying mechanism (4) includes a conveyor (401) and a mounting groove (402). The mounting groove (402) is opened on the surface of the workbench (1). The conveyor (401) is fixedly connected to the surface of the mounting groove (402). A second cylinder (403) is fixed on the top of the workbench (1). A push plate (404) is fixed at one end of the second cylinder (403). The second cylinder (403) is located behind the conveyor (401). The conveyor (401) is located behind the placement plate (202).

4. The processing apparatus for the inner hole of a metallurgical bearing according to claim 1, characterized in that: The inner wall of the adjustment groove (203) is fixed with a guide rod (210), and the limiting plate (204) is slidably connected to the surface of the guide rod (210).

5. The machining apparatus for the inner hole of a metallurgical bearing according to claim 1, characterized in that: Guide plates (7) are fixed on both the front and rear sides of the inner wall of the chute (5), and moving grooves (211) are opened on both the front and rear sides of the surface of the placement plate (202). The moving grooves (211) are slidably connected to the surface of the guide plates (7).

6. The processing apparatus for the inner hole of a metallurgical bearing according to claim 3, characterized in that: A second electric cylinder (405) is provided on the left side of the conveyor (401). The second electric cylinder (405) is fixedly connected to the top of the workbench (1). A pressure sensor (406) is fixed at one end of the second electric cylinder (405). A baffle (407) is fixed on the surface of the pressure sensor (406).

7. The processing apparatus for the inner hole of a metallurgical bearing according to claim 2, characterized in that: The top of the L-shaped plate (301) has two guide rods (307) that slide through it, and the bottom of the guide rods (307) is fixedly connected to the top of the mounting plate (303).

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