Centerless grinding machine for cylindrical pin machining

Abstract

The utility model relates to the technical field of centerless grinding machines, in particular to a centerless grinding machine for cylindrical pin machining, which comprises a base, a feeding table, a supporting cover, a supporting block, a feeding roller, a relative moving mechanism and a rotating mechanism, the base is fixedly provided with a grinding machine body, and the feeding table is fixedly arranged on the side wall of the grinding machine body. The supporting cover is fixedly arranged on the feeding table, a feeding port is formed in the supporting cover in a penetrating mode, two supporting blocks are arranged in the supporting cover in a sliding mode, a plurality of feeding grooves are formed in the side walls of the sides, close to the feeding port, of the supporting blocks, feeding rollers are rotationally arranged in the feeding grooves, and the relative moving mechanism is arranged in the supporting cover and used for driving the two supporting blocks to move relatively. And the rotating mechanism is arranged on one supporting block and used for driving the multiple feeding rollers on the supporting block to rotate synchronously, and through the technical scheme, the problem that in the related technology, the workpiece feeding efficiency is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of centerless grinding technology, specifically to a centerless grinding machine for machining cylindrical pins. Background Technology

[0002] Centerless grinders are a type of grinding machine that performs grinding without requiring a workpiece axis for positioning. They mainly consist of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece support. The grinding wheel performs the actual grinding work, while the adjusting wheel controls the workpiece rotation and feed rate. Currently, in centerless grinders, the workpiece is manually or mechanically fixed onto the feeding fixture during the feeding process. However, the feeding device requires releasing the pre-processed workpiece before fixing the unprocessed workpiece, which is inconvenient in practical use and fails to effectively improve the working efficiency of the centerless grinder.

[0003] To facilitate workpiece positioning, a search revealed a utility model patent with publication number CN219359128U, which discloses an automatic feeding fixture for a centerless grinder. The feeding component A and the feeding component B are mounted on the centerless grinder body, and a grinding wheel and a guide wheel are mounted on the centerless grinder body. A workpiece support is mounted between the guide wheel and the grinding wheel, and the feeding component A and the feeding component B are mounted at the front and rear ends of the workpiece support.

[0004] The aforementioned prior art, when in use, sets up feeding components A and B with suitable structures on both sides of the grinding wheel and guide wheel of the centerless grinder body, so that the feeding mechanism on the feeding fixture can uniformly input the tubular workpiece into the centerless grinder, so that the workpiece can be ground on the centerless grinder, thereby improving the processing efficiency of the workpiece.

[0005] However, during the workpiece feeding process, the baffle is pressed against the workpiece surface by the spring, and the friction between the workpiece and the baffle is large, which affects the stability of the workpiece movement and thus affects the workpiece feeding efficiency. Utility Model Content

[0006] This invention proposes a centerless grinding machine for machining cylindrical pins, which solves the problem of low workpiece feeding efficiency in related technologies.

[0007] The technical solution of this utility model is as follows: A centerless grinding machine for machining cylindrical pins includes a base, on which the grinding machine body is fixedly mounted, and also includes a feeding table, a support cover, a support block, a feeding roller, a relative moving mechanism, and a rotating mechanism;

[0008] The feeding platform is fixedly mounted on the side wall of the grinding machine body, and the support cover is fixedly mounted on the feeding platform. A feeding port is opened through the support cover. Two support blocks are slidably mounted inside the support cover. Multiple feeding grooves are opened on the side wall of the support blocks near the feeding port. The feeding rollers are rotatably mounted in the feeding grooves. The relative movement mechanism is mounted inside the support cover and is used to drive the two support blocks to move relative to each other. The rotation mechanism is mounted on one of the support blocks and is used to drive the multiple feeding rollers on the support block to rotate synchronously.

[0009] Preferably, the relative movement mechanism includes:

[0010] A bidirectional screw is rotatably mounted inside the support cover and passes through the support block via a threaded connection.

[0011] The first motor is fixedly mounted on the support cover, and its output end is fixedly connected to the bidirectional screw.

[0012] Furthermore, the rotating mechanism includes:

[0013] A first cavity is formed within one of the support blocks. Multiple worm gears are rotatably arranged within the first cavity, and a connecting rod is fixedly arranged between each worm gear and the adjacent feed roller.

[0014] A worm gear, which is rotatably disposed within the first cavity, and meshes with the worm wheel;

[0015] A drive mechanism is mounted on the support block and is used to drive the worm gear to rotate.

[0016] Furthermore, the drive mechanism includes:

[0017] The second cavity is formed inside the support block. A first bevel gear is rotatably mounted on the side wall of the second cavity near the worm gear. The first bevel gear is fixedly connected to the worm gear.

[0018] The second bevel gear is rotatably mounted on the side wall of the second cavity, and the second bevel gear meshes with the first bevel gear;

[0019] An adjustment mechanism is provided on the support block and is used to drive the second bevel gear to rotate.

[0020] Furthermore, the adjustment mechanism includes:

[0021] A first drive port is formed on the support block and penetrates the side wall of the support cover.

[0022] A driving prism is fixedly mounted on the second bevel gear, and the end of the driving prism away from the second bevel gear extends through the first driving port and out of the support cover;

[0023] A power input mechanism is provided on the support cover and is used to control the rotation of the drive prism.

[0024] Based on the above solution, the power input mechanism includes:

[0025] The first gear is rotatably mounted on the side wall of the support cover;

[0026] The driving prism passes through the first gear and is slidably connected to the first gear;

[0027] The second gear is rotatably mounted on the side wall of the support cover, and the second gear meshes with the first gear;

[0028] The second motor is fixedly mounted on the side wall of the support cover, and the output end of the second motor is fixedly connected to the second gear.

[0029] Based on the above scheme, the first gear sidewall is provided with a second drive port, and the drive prism passes through the second drive port and is slidably connected to the sidewall of the second drive port.

[0030] Based on the above scheme, a rubber pad is fixedly provided on the side wall of the feed roller.

[0031] Based on the above scheme, the first motor is a forward and reverse reversible motor.

[0032] Based on the above scheme, a support leg is fixedly provided between the feeding platform and the base.

[0033] The working principle and beneficial effects of this utility model are as follows:

[0034] 1. In this utility model, by setting up a relative movement mechanism, the operation of the first motor can drive the bidirectional screw to rotate, and at the same time, the threaded engagement between the bidirectional screw and the support block drives the two support blocks to move relative to each other. In this way, the cylindrical pin can be limited by multiple feeding rollers on the support block, thereby preventing the cylindrical pin from tilting during the feeding process.

[0035] 2. In this utility model, the rotation mechanism facilitates the rotation of the worm gear through the operation of the drive mechanism, and then drives the worm wheel and the feed roller to rotate through the meshing of the worm gear and the worm wheel, thereby facilitating the feeding of the cylindrical pin into the grinding machine body through the friction between the feed roller and the cylindrical pin.

[0036] 3. In this utility model, through the setting of the drive mechanism, the operation of the second motor can drive the second gear to rotate, and at the same time, through the meshing of the second gear and the first gear, the first gear can be driven to rotate. Meanwhile, through the sliding fit between the drive prism and the second drive port, the drive prism and the second bevel gear can be driven to rotate, so that the meshing of the second bevel gear and the first bevel gear can drive the first bevel gear and the worm to rotate.

[0037] 4. In this utility model, by setting up a feeding platform, a support cover, a support block, a feeding roller, a relative moving mechanism, and a rotating mechanism, after the cylindrical pin is inserted into the feeding port, the cylindrical pin can be driven to feed by the friction between the feeding roller and the cylindrical pin. At the same time, the feeding roller can limit the cylindrical pin, thereby solving the problem of low workpiece feeding efficiency in related technologies. Attached Figure Description

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] Figure 1 This is a schematic diagram of the structure of this utility model;

[0040] Figure 2 This is a schematic diagram of the structure of the feeding platform of this utility model;

[0041] Figure 3 This is a cross-sectional view of the relative movement mechanism of this utility model;

[0042] Figure 4 This is a cross-sectional view of the rotating mechanism of this utility model.

[0043] In the diagram: 1. Base; 2. Grinding machine body; 3. Feed table; 4. Support cover; 5. Feed inlet; 6. Support block; 7. Feed roller; 8. Bidirectional screw; 9. First motor; 10. First cavity; 11. Worm gear; 12. Worm; 13. First bevel gear; 14. Second bevel gear; 15. Drive prism; 16. First gear; 17. Second gear; 18. Second motor; 19. Support leg. Detailed Implementation

[0044] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0045] like Figures 1-4 As shown, this embodiment proposes a centerless grinder for machining cylindrical pins, including a base 1, a grinder body 2 fixedly mounted on the base 1, a feed table 3, a support cover 4, support blocks 6, feed rollers 7, a relative movement mechanism, and a rotation mechanism. The feed table 3 is fixedly mounted on the side wall of the grinder body 2, and the support cover 4 is fixedly mounted on the feed table 3. A feed inlet 5 is provided through the support cover 4. Two support blocks 6 are slidably mounted inside the support cover 4. Multiple feed grooves are provided on the side wall of the support blocks 6 near the feed inlet 5. Feed rollers 7 are rotatably mounted in the feed grooves. The relative movement mechanism is located inside the support cover 4 and is used to drive the two support blocks 6 to move relative to each other. The rotation mechanism is located on one of the support blocks 6 and is used to drive the multiple feed rollers 7 on the support block 6 to rotate synchronously. A support leg 19 is fixedly mounted between the feed table 3 and the base 1. The grinder body 2 is an M1040 type centerless grinder, which can automatically complete the unloading of the workpiece.

[0046] Reference Figure 2 and Figure 3 The relative movement mechanism includes a bidirectional screw 8 and a first motor 9. The bidirectional screw 8 is rotatably mounted inside the support cover 4 and passes through the support block 6 via a threaded connection. The first motor 9 is fixedly mounted on the support cover 4, and its output end is fixedly connected to the bidirectional screw 8. The first motor 9 is a forward and reverse reversible motor. The operation of the first motor 9 can drive the bidirectional screw 8 to rotate. At the same time, the threaded connection between the bidirectional screw 8 and the support block 6 drives the two support blocks 6 to move relative to each other. In turn, the multiple feed rollers 7 on the support block 6 can limit the cylindrical pin, thereby preventing the cylindrical pin from tilting during the feeding process.

[0047] Reference Figure 3 and Figure 4The rotating mechanism includes a first cavity 10, a worm gear 12, and a drive mechanism. The first cavity 10 is located within one of the support blocks 6. Multiple worm wheels 11 are rotatably arranged within the first cavity 10. A connecting rod is fixed between each worm wheel 11 and a nearby feed roller 7. The worm gear 12 is rotatably arranged within the first cavity 10 and meshes with the worm wheels 11. The drive mechanism is mounted on the support block 6 and is used to drive the worm gear 12 to rotate. The operation of the drive mechanism drives the worm gear 12 to rotate, which in turn drives the worm wheels 11 and the feed roller 7 to rotate through the meshing of the worm gear 12 with the worm wheels 11. Thus, the friction between the feed roller 7 and the cylindrical pin drives the cylindrical pin to feed material into the grinding machine body 2.

[0048] Reference Figure 3 and Figure 4 The drive mechanism includes a second cavity, a second bevel gear 14, and an adjustment mechanism. The second cavity is located within the support block 6. A first bevel gear 13 is rotatably mounted on the side wall of the second cavity near the worm gear 12, and is fixedly connected to the worm gear 12. A second bevel gear 14 is rotatably mounted on the side wall of the second cavity and meshes with the first bevel gear 13. The adjustment mechanism is mounted on the support block 6 and is used to drive the second bevel gear 14 to rotate. The adjustment mechanism includes a first drive port, a drive prism 15, and a power input mechanism. The first drive port is located on the support block 6 and penetrates the side wall of the support cover 4. The drive prism 15 is fixedly mounted on the second bevel gear 14, with one end of the drive prism 15 extending out of the support cover 4 through the first drive port. The power input mechanism is mounted on the support cover 4 and is used to control the rotation of the drive prism 15. The power input mechanism includes a first gear 16, a second gear 17, and a second motor 18. The first gear 16 rotates... The drive prism 15 is mounted on the side wall of the support cover 4. The drive prism 15 passes through the first gear 16 and is slidably connected to the first gear 16. The second gear 17 is rotatably mounted on the side wall of the support cover 4 and meshes with the first gear 16. The second motor 18 is fixedly mounted on the side wall of the support cover 4, and the output end of the second motor 18 is fixedly connected to the second gear 17. The side wall of the first gear 16 has a second drive port. The drive prism 15 passes through the second drive port and is slidably connected to the side wall of the second drive port. A rubber pad is fixedly mounted on the side wall of the feed roller 7. The operation of the second motor 18 can drive the second gear 17 to rotate. At the same time, the meshing of the second gear 17 with the first gear 16 drives the first gear 16 to rotate. Simultaneously, the sliding fit between the drive prism 15 and the second drive port can drive the drive prism 15 and the second bevel gear 14 to rotate. Thus, the meshing of the second bevel gear 14 with the first bevel gear 13 drives the first bevel gear 13 and the worm gear 12 to rotate.

[0049] In this embodiment, during use, the operator inserts the cylindrical pin through the feed inlet 5 into the support cover 4. The operator then controls the first motor 9, which drives the bidirectional screw 8 to rotate. Simultaneously, the threaded engagement between the bidirectional screw 8 and the support block 6 causes relative movement between the two support blocks 6. This allows the multiple feed rollers 7 on the support blocks 6 to limit the cylindrical pin's movement, preventing skew during feeding. The operator then controls the second motor 18, which drives the second gear 17 to rotate. The meshing of the second gear 17 with the first gear 16 drives the first gear 16 to rotate. At the same time, the sliding fit between the driving prism 15 and the second driving port drives the driving prism 15 and the second bevel gear 14 to rotate. Thus, the meshing of the second bevel gear 14 with the first bevel gear 13 drives the first bevel gear 13 and the worm 12 to rotate. In turn, the meshing of the worm 12 with the worm wheel 11 drives the worm wheel 11 and the feed roller 7 to rotate. Thus, the friction between the feed roller 7 and the cylindrical pin drives the cylindrical pin to feed into the grinding machine body 2.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A centerless grinder for machining cylindrical pins, comprising a base (1), wherein a grinder body (2) is fixedly disposed on the base (1), characterized in that, Also includes: Feeding table (3), the feeding table (3) is fixedly installed on the side wall of the grinding machine body (2); Support cover (4), the support cover (4) is fixedly installed on the feeding table (3), and the feeding port (5) is opened through the support cover (4); Support block (6), two support blocks (6) are slidably arranged inside the support cover (4), and multiple feeding grooves are opened on the side wall of the support block (6) near the feed port (5); Feed roller (7), the feed roller (7) is rotatably arranged in the feed trough; A relative movement mechanism is provided inside the support cover (4) for driving the two support blocks (6) to move relative to each other; A rotating mechanism is provided on one of the support blocks (6) for driving the plurality of feed rollers (7) on the support block (6) to rotate synchronously.

2. The centerless grinding machine for machining cylindrical pins according to claim 1, characterized in that, The relative movement mechanism includes: A bidirectional screw (8) is rotatably disposed inside the support cover (4), and the bidirectional screw (8) passes through the support block (6) through a threaded connection. The first motor (9) is fixedly mounted on the support cover (4), and the output end of the first motor (9) is fixedly connected to the bidirectional screw (8).

3. The centerless grinding machine for machining cylindrical pins according to claim 2, characterized in that, The rotating mechanism includes: The first cavity (10) is opened in one of the support blocks (6), and a plurality of worm gears (11) are rotatably arranged in the first cavity (10). A connecting rod is fixedly arranged between the worm gears (11) and the adjacent feed roller (7). A worm (12) is rotatably disposed in the first cavity (10), and the worm (12) meshes with the worm wheel (11); A drive mechanism is provided on the support block (6) and is used to drive the worm (12) to rotate.

4. A centerless grinding machine for machining cylindrical pins according to claim 3, characterized in that, The drive mechanism includes: The second cavity is opened inside the support block (6). A first bevel gear (13) is rotatably provided on the side wall of the second cavity near the worm (12). The first bevel gear (13) is fixedly connected to the worm (12). The second bevel gear (14) is rotatably mounted on the side wall of the second cavity, and the second bevel gear (14) meshes with the first bevel gear (13); An adjustment mechanism is provided on the support block (6) for driving the second bevel gear (14) to rotate.

5. A centerless grinding machine for machining cylindrical pins according to claim 4, characterized in that, The adjustment mechanism includes: The first drive port is located on the support block (6) and penetrates the side wall of the support cover (4); A driving prism (15) is fixedly mounted on the second bevel gear (14), and one end of the driving prism (15) away from the second bevel gear (14) extends through the first driving port and out of the support cover (4). A power input mechanism is provided on the support cover (4) and is used to control the rotation of the drive prism (15).

6. A centerless grinding machine for machining cylindrical pins according to claim 5, characterized in that, The power input mechanism includes: The first gear (16) is rotatably mounted on the side wall of the support cover (4); The driving prism (15) passes through the first gear (16) and is slidably connected to the first gear (16); The second gear (17) is rotatably mounted on the side wall of the support cover (4), and the second gear (17) meshes with the first gear (16); The second motor (18) is fixedly mounted on the side wall of the support cover (4), and the output end of the second motor (18) is fixedly connected to the second gear (17).

7. A centerless grinding machine for machining cylindrical pins according to claim 6, characterized in that, The first gear (16) has a second drive port on its side wall, and the drive prism (15) passes through the second drive port and is slidably connected to the side wall of the second drive port.

8. A centerless grinder for machining cylindrical pins according to claim 7, characterized in that, A rubber pad is fixedly provided on the side wall of the feed roller (7).

9. A centerless grinder for machining cylindrical pins according to claim 8, characterized in that, The first motor (9) is a forward and reverse reversible motor.

10. A centerless grinding machine for machining cylindrical pins according to claim 9, characterized in that, A support leg (19) is fixedly provided between the feeding platform (3) and the base (1).

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