Internal expansion type clamping tool for gear machining

Abstract

The utility model relates to the technical field of gear machining, and discloses an internal expansion type clamping tool for gear machining, which comprises an operating table, the top of the operating table is rotatably connected with a rotating shaft, the rotating shaft is cylindrical, and the bottom of the operating table is fixedly connected with a rotating motor for driving the rotating shaft; the inflator pumps are symmetrically and movably connected to the top of the operation table; the clamping structure can reduce damage to the gear when the gear is clamped, the clamping structure comprises an alternating disc, an inflation column, an expanded edge and a top cover, the alternating disc is movably connected to the top of the operation table, the inflation cylinder is fixedly connected to the bottom of the alternating disc, the inflation column is fixedly arranged at the top of the alternating disc, the expanded edge is also fixedly arranged at the top of the alternating disc, and the top cover is fixedly connected to the top of the alternating disc. The top cover is fixedly connected to the tops of the expanded edges, and the four expanded edges are arranged on the top of the alternating disc in a circular array mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear processing, and specifically relates to an internally expanding clamping tool for gear processing. Background Art

[0002] A gear refers to a mechanical element with teeth on its rim that can continuously mesh to transmit motion and power.

[0003] The prior art (publication number: CN220388147U) discloses a gear inner ring clamping mechanism, including: a bottom plate, a support seat is fixedly installed at the upper end of the bottom plate, and a support frame is fixedly installed at the upper end of the support seat. A dial is fixedly connected to the inner end of the support frame, and a fixed cylinder is fixedly connected to the inside of the dial.

[0004] The prior art drives symmetric clamps through a shaft that can rotate at the bottom of its device to fix the gear on the device by expanding its inner wall. Although the prior art can fix the size, the clamps of the prior art will cause damage to the inner wall of the gear due to contact during expansion. As a high-precision workpiece, damage to the gear will lead to a reduction in its service life and deviation in size. Therefore, the prior art will cause damage to the inner wall of the gear when clamping the gear.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] To solve the technical problem that the prior art damages the gear when clamping the gear, the basic concept of the technical solution adopted by the present utility model is:

[0007] An internally expanding clamping tool for gear processing, including:

[0008] An operating table, a rotating shaft is rotatably connected to the top of the operating table. The rotating shaft is cylindrical, and a rotating motor for driving the rotating shaft is fixedly connected to the bottom of the operating table;

[0009] An air cylinder, the air cylinder is symmetrically and movably connected to the top of the operating table;

[0010] A clamping structure, which can reduce damage to the gear when clamping the gear. The clamping structure includes a rotation disk, an air column, an expanding edge, and a top cover. The rotation disk is movably connected to the top of the operating table. The air cylinder is fixedly connected to the bottom of the rotation disk. The air column is fixedly arranged on the top of the rotation disk. The expanding edge is also fixedly arranged on the top of the rotation disk. The top cover is fixedly connected to the top of the expanding edge. Four expanding edges are circularly arranged on the top of the rotation disk.

[0011] As a preferred embodiment of the present utility model, the cavity inside the inflatable column is hollow. The bottom of the inflatable column can communicate with the inflator. The inflatable column is located among multiple flanges. The bottom of the top cover can be fixedly connected to the tops of all the flanges, and the top cover is in a disc shape.

[0012] As a preferred embodiment of the present utility model, the clamping structure further includes a base column and anti-slip blocks. The base column is fixedly connected to the top of the rotation disc. The cavity inside the base column is hollow. The cavity inside the base column can communicate with the inflator, and the cavity inside the base column can also communicate with the cavity inside the inflatable column. The anti-slip blocks are fixedly connected to the outer wall surfaces of the flanges.

[0013] As a preferred embodiment of the present utility model, the anti-slip blocks are respectively arranged on the outer wall surfaces of each flange, and multiple anti-slip blocks are arranged in a linear array on the outer wall surfaces of each flange.

[0014] As a preferred embodiment of the present utility model, the clamping structure further includes a base plate, a chassis, a push rod, a top ring and a bearing block. The base plate is fixedly connected to the center of the top of the rotating shaft. The rotation disc is fixedly connected to the side wall surface of the base plate. The chassis is slidably connected to the outer wall surface of the base column. The push rod is fixedly connected to the top of the chassis. The top ring is fixedly connected to the top of the push rod. The bearing block is fixedly connected to the outer wall surface of the top ring. The rotation disc, the inflator, the base column, the inflatable column, the flange, the top cover, the anti-slip block, the chassis, the push rod, the top ring and the bearing block are symmetrically arranged on both side wall surfaces of the base plate.

[0015] As a preferred embodiment of the present utility model, the chassis is in a disc shape. A rectangular groove adapted to the outer wall surface of the base column is penetrated and opened on the top of the chassis, and the rectangular groove on the wall surface of the chassis is sleeved on the outer wall surface of the base column.

[0016] As a preferred embodiment of the present utility model, the push rod is in a cylindrical shape, and multiple push rods are evenly arranged on the top of the chassis. The top ring is in a circular ring shape. The inner cavity size of the top ring is consistent with the contour sizes of the flange and the inflatable column in the normal state. Multiple bearing blocks are arranged in a circular array on the outer arc surface of the top ring.

[0017] The present utility model has the following beneficial effects compared with the prior art:

[0018] 1. By arranging the clamping structure, the inner wall of the gear can be prevented from being damaged when clamping the gear. Because the clamping structure drives the flanges to adapt to the size of the inner wall of the gear by inflating and expanding the inflatable column made of elastic rubber material, so as to clamp the gear on the device. Compared with the prior art, this solution can not only clamp the gear, but also avoid damaging the gear when clamping the gear.

[0019] 2. By setting rotatable symmetric inflatable columns, the next gear to be processed can be fixed during gear processing, thus saving the time for placing the gear and improving work efficiency. And by setting slidable bearing blocks, it is convenient to remove the processed gear from the device, thereby further improving work efficiency.

[0020] The following further describes the specific implementation manners of the present utility model in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings:

[0022] Figure 1 is the perspective view of the present utility model;

[0023] Figure 2 is the single independent perspective view of the top structure of the operating platform of the present utility model;

[0024] Figure 3 is the exploded view of the edge expansion and base column of the present utility model;

[0025] Figure 4 is the perspective view of the expanded state of the inflatable column after inflation of the present utility model;

[0026] Figure 5 is the exploded view of the wall surface structure of the base column of the present utility model.

[0027] In the figure: 20, operating platform; 21, rotating shaft; 22, base plate; 23, rotating disk; 24, inflatable cylinder; 30, base column; 31, inflatable column; 32, edge expansion; 33, top cover; 34, anti-slip block; 40, chassis; 41, push rod; 42, top ring; 43, bearing block. SPECIFIC IMPLEMENTATION MANNERS

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the attached drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0029] As Figure 1 and Figure 2 shown, an internal expansion type clamping tool for gear processing includes:

[0030] An operating platform 20, on the top of which a rotating shaft 21 is rotatably connected. The rotating shaft 21 is cylindrical, and a rotating motor for driving the rotating shaft 21 is fixedly connected to the bottom of the operating platform 20. This rotating motor is electrically connected to the power supply;

[0031] An inflatable cylinder 24 is symmetrically and movably connected on the top of the operating platform 20. The inflatable cylinder 24 can be inflated by turning on the power supply, and the inflatable cylinder 24 is electrically connected to the power supply.

[0032] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the clamping structure can reduce damage to the gear when clamping the gear. The clamping structure includes a rotation disk 23, an inflation column 31, a flanging 32, and a top cover 33. The rotation disk 23 is movably connected to the top of the operation table 20. The air cylinder 24 is fixedly connected to the bottom of the rotation disk 23. The inflation column 31 is fixedly arranged on the top of the rotation disk 23. The flanging 32 is also fixedly arranged on the top of the rotation disk 23. The top cover 33 is fixedly connected to the top of the flanging 32. Four flangings 32 are circularly arranged in an array on the top of the rotation disk 23.

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the cavity of the inflation column 31 is hollow. The bottom of the inflation column 31 can communicate with the air cylinder 24. The inflation column 31 is located between multiple flangings 32. The bottom of the top cover 33 can be fixedly connected to the tops of all flangings 32. The top cover 33 is disk-shaped. The clamping structure further includes a base column 30 and anti-slip blocks 34. The base column 30 is fixedly connected to the top of the rotation disk 23. The cavity of the base column 30 is hollow. The cavity of the base column 30 can communicate with the air cylinder 24. The cavity of the base column 30 can also communicate with the cavity of the inflation column 31. The anti-slip blocks 34 are fixedly connected to the outer wall surfaces of the flangings 32. The anti-slip blocks 34 are respectively arranged on the outer wall surfaces of each flanging 32. Multiple anti-slip blocks 34 are linearly arranged in an array on the outer wall surface of each flanging 32;

[0034] In specific use, first, the inner arc surface of the gear to be clamped and fixed is sleeved from the top of the top cover 33, and the flanging 32 also enters the cavity of the gear, and the bottom of the gear contacts the top of the bearing block 43. At this time, the power supply of the air cylinder 24 can be turned on. When the power supply of the air cylinder 24 is turned on, it will inflate the cavity of the inflation column 31 through the cavity of the base column 30. The materials of the inflation column 31, the flanging 32, and the anti-slip blocks 34 are all elastic rubber. When the cavity of the inflation column 31 is inflated by the air cylinder 24, the wall surface of the inflation column 31 will expand towards the surroundings. At this time, the inflation column 31 will drive the flanging 32 and the anti-slip blocks 34 to fit the inner wall surface of the gear when expanding, so as to fix the gear on the top of the bearing block 43. The flanging 32 will be inflated by the inflation column 31 to fit the size of the cavity of the gear. At this time, the gear can be processed;

[0035] In summary, by setting the clamping structure, the inner wall of the gear can be prevented from being damaged when the gear is clamped. Since the clamping structure drives the expanded edge 32 to adapt to the size of the inner wall of the gear through the inflated air column 31 made of elastic rubber material, the gear is clamped on the device. Compared with the prior art, this solution can not only clamp the gear, but also avoid damaging the gear when clamping it.

[0036] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the clamping structure further includes a base plate 22, a chassis 40, a push rod 41, a top ring 42 and a bearing block 43. The base plate 22 is fixedly connected to the top center of the rotating shaft 21, and the rotating disk 23 is fixedly connected to the side wall surface of the base plate 22. The chassis 40 is slidably connected to the outer wall surface of the base column 30. The push rod 41 is fixedly connected to the top of the chassis 40. The top ring 42 is fixedly connected to the top of the push rod 41. The bearing block 43 is fixedly connected to the outer wall surface of the top ring 42. The rotating disks 23, the air cylinders 24, the base columns 30, the air columns 31, the expanded edges 32, the top covers 33, the anti-slip blocks 34, the chassis 40, the push rods 41, the top rings 42 and the bearing blocks 43 are symmetrically arranged on both side wall surfaces of the base plate 22. The chassis 40 is in the shape of a disk, and a rectangular groove adapted to the outer wall surface of the base column 30 is formed through the top of the chassis 40. The rectangular groove on the wall surface of the chassis 40 is sleeved on the outer wall surface of the base column 30. The push rod 41 is in the shape of a cylinder, and a plurality of push rods 41 are uniformly arranged on the top of the chassis 40. The top ring 42 is in the shape of a ring, and the inner cavity size of the top ring 42 is the same as the contour sizes of the expanded edge 32 and the air column 31 in the normal state. A plurality of bearing blocks 43 are circularly arranged on the outer arc surface of the top ring 42;

[0037] During specific use, when the gear is clamped by the flange 32 on one side wall surface of the substrate 22 and processed by the processing device, the next gear to be processed can be placed at this time. The inflation column 31 expands to drive the flange 32 to fix the gear on the wall surface of the other non-working flange 32. After the first gear is processed, the rotation motor at the bottom of the operating table 20 can drive the rotating shaft 21 to rotate 180 degrees. The rotating shaft 21 can drive the substrate 22 to rotate during rotation, and the substrate 22 can swap the positions of the two clamped gears through rotation. Thus, while the processed gear is removed from processing, the next gear can be processed continuously. At this time, the processed gear can be removed from the wall surface of the flange 32. Before removing the gear, the gas in the cavity of the inflation column 31 needs to be pumped out through the air pump 24 so that the inflation column 31 returns to its original state. At this time, the chassis 40 can be slid upward. The chassis 40 can drive the push rod 41 to push the top ring 42 upward simultaneously. The top ring 42 will drive the bearing block 43 to push the gear on its top upward along the outer wall surface of the flange 32, so that the gear is no longer sleeved on the wall surface of the flange 32. When the top of the bearing block 43 is flush with the top of the top cover 33, the gear can be directly taken and the next gear to be processed can be placed;

[0038] In summary, by setting the symmetric inflation columns 31 that can be rotated, the next gear to be processed can be fixed during gear processing, thus saving the time for placing the gear and improving work efficiency. And by setting the slidable bearing block 43, it is convenient to remove the processed gear from the device, thereby further improving work efficiency.

[0039] Working principle: First, the gear to be clamped and fixed is sleeved into the device with its inner arc surface from the top of the top cover 33, and the flange 32 also enters the cavity of the gear, and the bottom of the gear contacts the top of the bearing block 43. At this time, the power supply of the air pump 24 can be turned on. When the air pump 24 is turned on, it will inflate the cavity of the inflation column 31 through the cavity of the base column 30. The materials of the inflation column 31, the flange 32, and the anti-slip block 34 are all elastic rubber. When the cavity of the inflation column 31 is injected with air by the air pump 24, the wall surface of the inflation column 31 will expand around. At this time, the inflation column 31 will drive the flange 32 and the anti-slip block 34 to fit the inner wall surface of the gear during expansion, thus fixing the gear on the top of the bearing block 43. The flange 32 will be inflated by the inflation column 31 to fit the size of the gear cavity. At this time, the gear can be processed.

[0040] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. An internally expanding clamping tool for gear processing, characterized in that Including: An operating table (20), a rotating shaft (21) is rotatably connected to the top of the operating table (20). The rotating shaft (21) is cylindrical, and a rotating motor for driving the rotating shaft (21) is fixedly connected to the bottom of the operating table (20). An inflator (24), the inflator (24) is symmetrically and movably connected to the top of the operating table (20). A clamping structure, which can reduce damage to the gear when clamping the gear. The clamping structure includes a rotating disk (23), an inflatable column (31), a flanging (32) and a top cover (33). The rotating disk (23) is movably connected to the top of the operating table (20). The inflator (24) is fixedly connected to the bottom of the rotating disk (23). The inflatable column (31) is fixedly arranged on the top of the rotating disk (23). The flanging (32) is also fixedly arranged on the top of the rotating disk (23). The top cover (33) is fixedly connected to the top of the flanging (32). Four flangings (32) are circularly arranged in an array on the top of the rotating disk (23).

2. The internal expansion type clamping tool for gear processing according to claim 1, wherein The cavity of the inflatable column (31) is hollow, the bottom of the inflatable column (31) can communicate with the inflator (24), the inflatable column (31) is located between multiple flangings (32), and the bottom of the top cover (33) can be fixedly connected to the tops of all flangings (32). The top cover (33) is disk-shaped.

3. The internal expansion type clamping tool for gear processing according to claim 1, characterized in that, The clamping structure further includes a base column (30) and an anti-slip block (34). The base column (30) is fixedly connected to the top of the rotating disk (23). The cavity of the base column (30) is hollow, the cavity of the base column (30) can communicate with the inflator (24), and the cavity of the base column (30) can also communicate with the cavity of the inflatable column (31). The anti-slip block (34) is fixedly connected to the outer wall surface of the flanging (32).

4. The internal expansion type clamping tool for gear machining according to claim 3, characterized in that, The anti-slip blocks (34) are respectively arranged on the outer wall surfaces of each flanging (32), and multiple anti-slip blocks (34) are linearly arranged in an array on the outer wall surface of each flanging (32).

5. The internal expansion type clamping tool for gear processing according to claim 3, characterized in that, The clamping structure further includes a base plate (22), a chassis (40), a push rod (41), a top ring (42) and a bearing block (43). The base plate (22) is fixedly connected to the center of the top of the rotating shaft (21). The rotating disk (23) is fixedly connected to the side wall surface of the base plate (22). The chassis (40) is slidably connected to the outer wall surface of the base column (30). The push rod (41) is fixedly connected to the top of the chassis (40). The top ring (42) is fixedly connected to the top of the push rod (41). The bearing block (43) is fixedly connected to the outer wall surface of the top ring (42). The rotating disk (s) (23), inflator (s) (24), base column (s) (30), inflatable column (s) (31), flanging (s) (32), top cover (s) (33), anti-slip block (s) (34), chassis (40), push rod (41), top ring (42) and bearing block (43) are symmetrically arranged on both side wall surfaces of the base plate (22).

6. The internal expansion type clamping tool for gear processing according to claim 5, characterized in that, The chassis (40) is disk-shaped, a rectangular groove adapted to the outer wall surface of the base column (30) is opened through the top of the chassis (40), and the rectangular groove on the wall surface of the chassis (40) is sleeved on the outer wall surface of the base column (30).

7. The internal expansion type clamping tool for gear processing according to claim 5, characterized in that The push rod (41) is cylindrical, and a plurality of push rods (41) are evenly arranged on the top of the chassis (40). The top ring (42) is circular, and the inner cavity size of the top ring (42) is consistent with the contour sizes of the flanging (32) and the inflatable column (31) in the normal state. A plurality of bearing blocks (43) are circularly arrayed on the outer arc surface of the top ring (42).

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