A blanking device for bearing cage machining

Abstract

The utility model discloses a kind of blanking device for bearing retainer machining, including base, blanking mechanism is fixedly connected on the base upper surface, further includes: guide mechanism, the guide mechanism includes two support gantry, the two support gantry are fixedly installed on base upper surface, and are respectively located blanking mechanism two sides, rotatingly installed with lower support roller in the support gantry, limit sliding slot is opened in the support gantry inner wall, limit sliding bracket is slidably installed in the limit sliding slot, rotatingly installed with upper adjusting roller in the limit sliding bracket. By rotating screw adjusting rod, upper adjusting roller is moved, lower support roller rotatingly installed in support gantry interior height is invariable, the height of upper adjusting roller is adjusted to adapt to the steel coil of different thickness, since lower support roller height keeps invariable, the height of bottom portion when steel coil is conveyed to blanking mechanism interior does not change with, compared with prior art device, effectively avoid the height change of bottom portion when steel coil of different thickness is conveyed to blanking mechanism interior.

Description

Technical Field

[0001] This utility model relates to a punching device, and more particularly to a punching device for processing bearing cages. Background Technology

[0002] A bearing cage (also known as a bearing retainer) is a bearing component that partially encloses all or part of the rolling elements and moves with them. It is used to isolate the rolling elements and usually guides and holds them within the bearing. A blanking device is required during the manufacturing process.

[0003] For example, Chinese Patent Publication No. CN216729025U discloses a punching device for processing bearing cages. The assembly bracket has guide rails symmetrically arranged on its inner side at both the front and rear sides. A multi-station punching mechanism is located at the middle position above the guide rails, and coil guiding mechanisms are symmetrically arranged at both ends above the guide rails. This invention utilizes the multi-station punching mechanism to punch multiple sets of cages simultaneously, improving the efficiency of cage punching. During the punching process, the coil guiding mechanism ensures the steel sheet coil is transported horizontally to the multi-station punching mechanism, guaranteeing dimensional accuracy. Furthermore, the coil guiding mechanism has flexible adjustment capabilities, enabling horizontal guidance of steel sheet coils of varying thicknesses.

[0004] Some problems were found when using the existing blanking device for bearing cage processing. First, although the method of synchronously adjusting two guide rollers can clamp and guide coils of different thicknesses, the lower guide roller will move up and down during the adjustment process. The movement of the lower guide roller will cause the bottom height of the guided steel coil to change, while the height of the fixed punch below remains unchanged. This will cause the coil to be fed into the blanking mechanism at a different height than the fixed punch, resulting in errors during the blanking process and affecting the final blanking quality of the bearing cage. Utility Model Content

[0005] The purpose of this invention is to provide a punching device for processing bearing cages, so as to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a punching device for processing bearing cages, comprising a base, on which a punching mechanism is fixedly connected, and further comprising:

[0007] The guiding mechanism includes two supporting gantry frames, which are fixedly mounted on the base and located on both sides of the punching mechanism. A lower support roller is rotatably mounted inside the supporting gantry frame. A limiting groove is formed on the inner wall of the supporting gantry frame, and a limiting slide is slidably mounted inside the limiting groove. An upper adjusting roller is rotatably mounted inside the limiting slide. Side limiting frames are symmetrically slidably mounted inside the supporting gantry frame, and side guide rollers are rotatably mounted on the front of the side limiting frames via bearing seats.

[0008] Preferably, the punching mechanism includes a fixed punch and a movable punch. An upper bracket is fixedly connected to the base via a support column. A punching cylinder is fixedly connected to the upper bracket. The output end of the punching cylinder is fixedly connected to the movable punch.

[0009] Preferably, a first threaded sleeve is embedded on the support frame, a limiting slide rod is fixedly connected inside the support frame, and a bidirectional threaded screw is rotatably installed inside the support frame and in front of the limiting slide rod.

[0010] Preferably, a threaded adjusting rod is rotatably mounted on the limiting slide, the threaded adjusting rod is threadedly engaged with the first threaded sleeve block, and a knob is fixedly connected to the upper end of the threaded adjusting rod.

[0011] Preferably, the side limiting frame has a through hole, which is slidably engaged with the limiting slide rod.

[0012] Preferably, a second threaded sleeve is embedded in the side limiting frame, and the second threaded sleeve is threadedly engaged with a bidirectional threaded lead screw.

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

[0014] 1. The upper adjusting roller is moved by rotating the threaded adjusting rod, while the lower support roller is rotated and installed inside the support gantry at a constant height. The height of the upper adjusting roller is adjusted to accommodate steel coils of different thicknesses. Since the height of the lower support roller remains constant, the bottom height of the steel coil will not change when it is conveyed into the punching mechanism. Compared with the existing device, this effectively avoids the bottom height of steel coils of different thicknesses from changing when they are conveyed into the punching mechanism.

[0015] 2. The rotation of the bidirectional threaded screw can drive the side limit frame to move, thereby adjusting the distance between the two side limit frames. The side limit frames are used to lock the steel coil on both sides to prevent the steel coil from shifting left and right during the drawing process, effectively ensuring that the steel coil is stably fed into the punching mechanism for punching. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

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

[0018] Figure 3 This is a schematic diagram of the limiting slide structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the side limiting frame structure of this utility model.

[0020] In the diagram: 1. Base; 101. Fixed punch; 102. Upper support; 103. Punching cylinder; 104. Moving punch; 2. Support frame; 201. Limiting slide groove; 202. First threaded sleeve block; 203. Lower support roller; 204. Limiting slide rod; 205. Bidirectional threaded screw; 3. Limiting slide frame; 301. Upper adjusting roller; 302. Threaded adjusting rod; 303. Knob; 4. Side limiting frame; 401. Through hole; 402. Second threaded sleeve block; 403. Side guide roller. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a punching device for processing bearing cages, including a base 1, a punching mechanism fixedly connected to the base 1, and further including:

[0023] The guiding mechanism includes two support frames 2, which are fixedly installed on the base 1 and located on both sides of the punching mechanism. A lower support roller 203 is rotatably installed inside the support frame 2. A limiting groove 201 is opened on the inner wall of the support frame 2. A limiting slide 3 is slidably installed inside the limiting groove 201. An upper adjusting roller 301 is rotatably installed inside the limiting slide 3. Side limiting frames 4 are symmetrically slidably installed inside the support frame 2. A side guide roller 403 is rotatably installed on the front of the side limiting frame 4 through a bearing seat.

[0024] In this embodiment, the lower support roller 203 and the upper adjusting roller 301 work together to clamp the steel coil from both sides, thereby limiting the position of the steel coil as it is conveyed into the punching mechanism. The limiting slide 3 is slidably installed in the limiting slide groove 201, and thus the limiting slide 3 moves up and down. The movement of the limiting slide 3 can drive the upper adjusting roller 301 to move. With the lower support roller 203 stationary, the height of the upper adjusting roller 301 can be adjusted to accommodate steel coils of different thicknesses. Since the height of the lower support roller 203 remains constant, even though the thickness of different steel coils is different, the bottom height of the steel coil will not change when it is conveyed into the punching mechanism. Compared with the existing device, this effectively avoids the height of steel coils of different thicknesses from changing when they are conveyed into the punching mechanism. The side limiting frame 4 is slidably installed inside the support gantry 2. The two side limiting frames 4 are symmetrical from left to right. Adjusting the distance between the two side limiting frames 4 to be the same as the width of the steel coil can limit the left and right deviation of the steel coil during the drawing process, effectively ensuring that the steel coil is stably conveyed into the punching mechanism for punching.

[0025] In order to achieve the purpose of punching steel coils, the device adopts the following technical solution: the punching mechanism includes a fixed punch 101 and a movable punch 104. An upper support 102 is fixedly connected to the base 1 through a support column. A punching cylinder 103 is fixedly connected to the upper support 102. The output end of the punching cylinder 103 is fixedly connected to the movable punch 104.

[0026] By activating the punching cylinder 103, the moving punch 104 can be driven to move downward. The moving punch 104 and the fixed punch 101 cooperate with each other to punch the steel coil. This is a relatively mature technology. For details, please refer to: a punching device for processing bearing cages published by Chinese Patent Publication No. CN216729025U. It will not be described in detail here.

[0027] To guide steel coils of different specifications, the device employs the following technical solution: A first threaded sleeve 202 is embedded in the support gantry 2; a limiting slide rod 204 is fixedly connected inside the support gantry 2; a bidirectional threaded screw 205 is rotatably installed inside the support gantry 2 and in front of the limiting slide rod 204; a threaded adjusting rod 302 is rotatably installed on the limiting slide 3, and the threaded adjusting rod 302 is threadedly engaged with the first threaded sleeve 202; a knob 303 is fixedly connected to the upper end of the threaded adjusting rod 302; a through hole 401 is opened in the side limiting frame 4, and the through hole 401 is slidably engaged with the limiting slide rod 204; a second threaded sleeve 402 is embedded in the side limiting frame 4, and the second threaded sleeve 402 is threadedly engaged with the bidirectional threaded screw 205.

[0028] The screw 302 can be rotated by the knob 303. The screw 302 is threadedly engaged with the first screw sleeve 202. The rotation of the screw 302 can move the limiting slide 3. The movement of the limiting slide 3 can move the upper adjusting roller 301. This can be used to adjust the distance between the upper adjusting roller 301 and the lower support roller 203. The through hole 401 is slidably engaged with the limiting slide 204. The side limiting frame 4 can be slidably installed inside the support frame 2. At the same time, the bidirectional threaded screw 205 is threadedly engaged with the second screw sleeve 402. The rotation of the bidirectional threaded screw 205 can move the side limiting frame 4, thereby adjusting the distance between the two side limiting frames 4.

[0029] The working principle and usage process of this utility model are as follows: The steel coil to be punched is passed between the lower support roller 203 and the upper adjusting roller 301. The rotating threaded adjusting rod 302 drives the upper adjusting roller 301 to move, so that the upper adjusting roller 301 moves down to squeeze the steel coil and limit the vertical position of the steel coil. The rotating bidirectional threaded screw 205 can adjust the spacing of the side limiting frame 4. The side limiting frame 4 is used to limit the left and right deviation of the steel coil, thereby effectively guiding the steel coil into the punching mechanism. The punching cylinder 103 is started to drive the moving punch 104 to move down. The moving punch 104 and the fixed punch 101 cooperate with each other to punch the passing steel coil.

[0030] Although 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 embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching device for machining bearing cages, comprising a base (1), wherein a punching mechanism is fixedly connected to the base (1), characterized in that, Also includes: The guiding mechanism includes two support frames (2), which are fixedly installed on the base (1) and located on both sides of the punching mechanism. A lower support roller (203) is rotatably installed inside the support frame (2). A limiting groove (201) is opened on the inner wall of the support frame (2). A limiting slide (3) is slidably installed inside the limiting groove (201). An upper adjusting roller (301) is rotatably installed inside the limiting slide (3). A side limiting frame (4) is symmetrically slidably installed inside the support frame (2). A side guide roller (403) is rotatably installed on the front of the side limiting frame (4) through a bearing seat.

2. A punching device for machining bearing cages according to claim 1, characterized in that: The punching mechanism includes a fixed punch (101) and a movable punch (104). An upper bracket (102) is fixedly connected to the base (1) via a support column. A punching cylinder (103) is fixedly connected to the upper bracket (102). The output end of the punching cylinder (103) is fixedly connected to the movable punch (104).

3. A punching device for machining bearing cages according to claim 1, characterized in that: The support frame (2) is fitted with a first threaded sleeve (202), and a limiting slide rod (204) is fixedly connected inside the support frame (2). A bidirectional threaded screw (205) is rotatably installed inside the support frame (2) and in front of the limiting slide rod (204).

4. A punching device for machining bearing cages according to claim 1, characterized in that: A threaded adjusting rod (302) is rotatably mounted on the limiting slide (3). The threaded adjusting rod (302) is threadedly engaged with the first threaded sleeve (202). A knob (303) is fixedly connected to the upper end of the threaded adjusting rod (302).

5. A punching device for machining bearing cages according to claim 3, characterized in that: The side limiting frame (4) has a through hole (401) inside, and the through hole (401) is slidably engaged with the limiting slide rod (204).

6. A punching device for machining bearing cages according to claim 3, characterized in that: The side limiting bracket (4) is fitted with a second threaded sleeve (402), which is threadedly engaged with the bidirectional threaded screw (205).

Images