Machining clamp for hard alloy spherical teeth

Abstract

The utility model belongs to the technical field of hard alloy spherical tooth machining, and particularly relates to a hard alloy spherical tooth machining clamp which comprises a base, a fixing plate arranged on one side of the top of the base, a bearing seat arranged on one side of the fixing plate, a rotating rod arranged on one side of the bearing seat, and a rotating block arranged on one side of the outer surface of the rotating rod. The base, the fixing plate, the bearing seat, the rotating rod, the rotating block, the stud, the threaded cylinder, the first clamping plate assembly, the sliding rod and the second clamping plate assembly are matched with one another, so that clamping and fixing operation of the spherical teeth is simple; through mutual cooperation of the first clamping plate assembly, the clamping plate main body, the positioning groove, the groove, the spring, the limiting block, a supporting rod, an anti-sliding block, a rubber layer, a telescopic groove, a sliding rod and a second clamping plate assembly, the limiting and fixing effect on the spherical teeth is improved, the situation that the spherical teeth are prone to sliding during machining, errors occur when workers machine the spherical teeth, and the machining efficiency is improved is avoided. And the ball teeth are damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of hard alloy ball gear processing, in particular to a hard alloy ball gear processing fixture. Background Art

[0002] Cemented carbide has high hardness and good wear resistance. Cemented carbide ball teeth are widely used in oil drilling, snow plow equipment for snow removal, cutting tools, mining machinery, road maintenance and coal drilling tools. Cemented carbide ball teeth have excellent wear resistance and impact toughness. Compared with similar products, they have higher drilling speed and longer service life, which is conducive to saving auxiliary man-hours, reducing workers' physical labor and speeding up engineering. Cemented carbide ball teeth include cylindrical ball heads. In the process of ball tooth production, processing fixtures are needed to clamp the cylindrical ball heads so that they can be ground on the grinder.

[0003] The existing patent number CN217097246U relates to the technical field of cemented carbide processing, specifically a cemented carbide ball gear processing fixture, including a base, on which at least one set of clamping components is provided, the clamping components including a fixed clamp block and a movable clamp block, the fixed clamp block is provided with a spherical groove for accommodating the ball gear on one side close to the movable clamp block, and the movable clamp block is provided with a top block for adjusting the distance between the movable clamp block and the fixed clamp block to clamp the ball gear on the side away from the fixed clamp block. The utility model can clamp the ball gear to be processed, ensure the accuracy of the ball gear processing size, and can also process the ball gear in batches.

[0004] The prior art has the following problems:

[0005] 1. The existing cemented carbide ball gear processing fixture has a relatively cumbersome clamping and fixing operation for the ball gear, which also leads to the need to spend more time and energy in the installation and removal of the ball gear during batch processing, which indirectly increases the workload of the staff and reduces the work efficiency;

[0006] 2. In the process of clamping and fixing, the existing cemented carbide ball gear processing fixture has a slippery surface of the cylindrical ball head on the ball gear and a small contact area with the fixture, which causes the ball gear to slip easily during processing, causing workers to make mistakes when processing the ball gear, resulting in damage to the ball gear, indirectly increasing the production cost and having poor practicality. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a processing fixture for carbide ball teeth, which solves the problem that the current clamping and fixing operations of the ball teeth are rather cumbersome, which also results in the need to spend more time and energy on the installation and removal operations of the ball teeth during batch processing, and in the clamping and fixing process, the cylindrical ball head on the ball teeth has a slippery surface and a small contact area with the fixture, which causes the ball teeth to slip easily during processing, causing workers to make mistakes when processing the ball teeth and resulting in damage to the ball teeth.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a processing fixture for cemented carbide ball teeth, comprising a base, a fixing plate is arranged on one side of the top of the base, a bearing seat is arranged on one side of the fixing plate, a rotating rod is arranged on one side of the bearing seat, a rotating block is arranged on one side of the outer surface of the rotating rod, a stud is arranged at one end of the rotating rod, a threaded barrel is arranged on the outer surface of the stud, a first clamping plate assembly is arranged on one side of the threaded barrel, a sliding rod is arranged at the bottom end of the first clamping plate assembly, and a second clamping plate assembly is arranged in the middle of the top of the base;

[0009] The first clamping plate assembly includes a clamping plate body, a positioning groove is provided on one side of the clamping plate body, a groove is provided on the clamping plate body on one side of the positioning groove, a spring is arranged inside the groove, a limiting block is arranged on one side of the spring, a support rod is arranged on one side of the limiting block, an anti-sliding plate is arranged at one end of the support rod, a rubber layer is arranged inside the positioning groove, and a telescopic groove is provided on one side of the rubber layer.

[0010] As a preferred technical solution of the utility model, one end of the rotating rod is fixedly connected to the stud, the other end of the rotating rod is installed on the bearing seat through a rotating connection, and the outer surface of the rotating rod is fixedly connected to the rotating block.

[0011] As a preferred technical solution of the utility model, the interior of the threaded barrel is threadedly connected to the stud, the inner cavity of the threaded barrel is arranged in a convex shape, and one end of the threaded barrel is fixedly connected and mounted on the side wall of the first clamping plate assembly.

[0012] As a preferred technical solution of the utility model, the size of the first clamping plate assembly is adapted to the size of the second clamping plate assembly, there are four groups of the first clamping plate assemblies, and the four groups of the first clamping plate assemblies are arranged in a rectangular shape on the top of the base.

[0013] As a preferred technical solution of the utility model, one end of the support rod is connected to the anti-sliding block, and the other end of the support rod passes through the telescopic slot and the groove and is connected to the limit block, and the size of the limit block is adapted to the size of the groove.

[0014] As a preferred technical solution of the utility model, the size of the anti-sliding block is adapted to the size of the telescopic slot, the number of the anti-sliding blocks is several groups, and the anti-sliding blocks are arranged in a ring array.

[0015] As a preferred technical solution of the utility model, the rubber layer and the front side of the positioning groove are both arranged in an arc shape, and the rubber layer is installed in the positioning groove by bonding.

[0016] Compared with the prior art, the utility model provides a machining fixture for cemented carbide ball teeth, which has the following beneficial effects:

[0017] 1. A processing fixture for cemented carbide ball teeth, by setting a base, a fixed plate, a bearing seat, a rotating rod, a rotating block, a stud, a threaded cylinder, a first clamping plate assembly, a sliding rod and a second clamping plate assembly. When clamping and fixing the ball teeth, several groups of ball teeth to be processed can be placed between the first clamping plate assembly and the second clamping plate assembly, and then the stud can be driven to rotate by rotating the rotating block, so that the first clamping plate assembly is horizontally displaced along the sliding rod toward the second clamping plate assembly until they are against each other, thereby clamping and fixing the ball teeth to be processed. When removing the ball teeth after the processing is completed, the rotating block can be rotated in the opposite direction so that the first clamping plate assembly is displaced backward along the sliding rod and away from the second clamping plate assembly, and the ball teeth can be removed. This design makes the clamping and fixing operation of the ball teeth relatively simple, avoids the problem that the ball teeth need to spend more time and energy on the installation and removal operations of the ball teeth during batch processing, indirectly reduces the workload of the staff, and improves the work efficiency at the same time.

[0018] 2. The processing fixture of the cemented carbide ball gear is provided with a first clamping plate assembly, a clamping plate body, a positioning groove, a groove, a spring, a limit block, a support rod, an anti-sliding block, a rubber layer, a telescopic groove, a sliding rod and a second clamping plate assembly. During the clamping and fixing process, the elastic force of the spring is first used to push the support rod out from the inside of the telescopic groove, so that the anti-sliding block contacts and abuts against the ball gear, thereby limiting the ball gear and preventing it from sliding in the positioning groove, thereby improving the stability and firmness of the ball gear. Furthermore, the rubber layer is provided to prevent the clamping force from being too large and causing wear when the clamping plate body contacts the ball gear, while making the positioning groove closer to the ball gear, thereby further improving the limiting and fixing effect of the ball gear. This design avoids the problem that the ball gear is easy to slide during processing, which causes workers to make mistakes when processing the ball gear and causes damage to the ball gear, thereby indirectly increasing the production cost and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3It is an enlarged view of the structure at A of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating block of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the first clamping plate assembly of the utility model.

[0024] In the figure: 1, base; 2, fixing plate; 3, bearing seat; 4, rotating rod; 5, rotating block; 6, stud; 7, threaded tube; 8, first clamping plate assembly; 801, clamping plate body; 802, positioning groove; 803, groove; 804, spring; 805, limit block; 806, support rod; 807, anti-sliding block; 808, rubber layer; 809, telescopic slot; 9, sliding rod; 10, second clamping plate assembly. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 In this embodiment: a processing fixture for cemented carbide ball teeth includes a base 1, a fixing plate 2 is arranged on one side of the top of the base 1, a bearing seat 3 is arranged on one side of the fixing plate 2, a rotating rod 4 is arranged on one side of the bearing seat 3, a rotating block 5 is arranged on one side of the outer surface of the rotating rod 4, a stud 6 is arranged on one end of the rotating rod 4, a threaded tube 7 is arranged on the outer surface of the stud 6, a first clamping plate assembly 8 is arranged on one side of the threaded tube 7, a sliding rod 9 is arranged at the bottom end of the first clamping plate assembly 8, and a second clamping plate assembly 10 is arranged in the middle of the top of the base 1; the first clamping plate assembly 8 includes a clamping plate body 801 A positioning groove 802 is provided on one side of the splint body 801, and a groove 803 is provided on one side of the positioning groove 802 of the splint body 801. A spring 804 is provided inside the groove 803, and a limiting block 805 is provided on one side of the spring 804, so that the support rod 806 can be pushed out from the telescopic groove 809 through the elastic force of the spring 804. A support rod 806 is provided on one side of the limiting block 805, and an anti-sliding block 807 is provided at one end of the support rod 806. A rubber layer 808 is provided inside the positioning groove 802, and a telescopic groove 809 is provided on one side of the rubber layer 808.

[0027] In this embodiment, one end of the rotating rod 4 is fixedly connected to the stud 6, and the other end of the rotating rod 4 is installed on the bearing seat 3 through a rotating connection. The outer surface of the rotating rod 4 is fixedly connected to the rotating block 5, which is convenient for driving the stud 6 to rotate synchronously by rotating the rotating block 5; the interior of the threaded tube 7 is threadedly connected to the stud 6, and the inner cavity of the threaded tube 7 is set in a convex shape. One end of the threaded tube 7 is fixedly connected to the side wall of the first clamping plate assembly 8, which is convenient for rotating inside the threaded tube 7 through the stud 6, driving the first clamping plate assembly 8 to move horizontally; the size of the first clamping plate assembly 8 is compatible with the size of the second clamping plate assembly 10, and the number of the first clamping plate assembly 8 is four groups, and the four groups of first clamping plate assemblies 8 are arranged in a rectangular shape on the top of the base 1, which is convenient for clamping and fixing the ball teeth through the mutual cooperation of the first clamping plate assembly 8 and the second clamping plate assembly 10; one end of the support rod 806 is connected to the anti-sliding block 807, and the other end of the support rod 806 passes through the telescopic slot 809 and the groove 803 is connected to the limit block 805, and the size of the limit block 805 is adapted to the size of the groove 803, so that the support rod 806 inside the groove 803 can be limited by the limit block 805 to prevent the support rod 806 from escaping from the groove 803; the size of the anti-sliding block 807 is adapted to the size of the telescopic groove 809, and the number of the anti-sliding blocks 807 is several groups, and the anti-sliding blocks 807 are arranged in a ring array, so that the anti-sliding blocks 807 can contact and abut against the ball teeth to limit the ball teeth and prevent the ball teeth from sliding inside the positioning groove 802, thereby improving the stability and firmness of the ball teeth; the rubber layer 808 and the front side of the positioning groove 802 are both arranged in an arc shape, and the rubber layer 808 is installed in the positioning groove 802 by bonding, so that when the splint body 801 contacts the ball teeth, the clamping force is too large to cause wear, and the positioning groove 802 is closer to the ball teeth, thereby further improving the limiting and fixing effect of the ball teeth.

[0028] The working principle and use process of the utility model are as follows: when clamping and fixing the ball teeth, several groups of ball teeth to be processed can be placed between the first clamping plate assembly 8 and the second clamping plate assembly 10, and then the stud 6 in the threaded tube 7 can be driven to rotate by rotating the rotating block 5, so that the first clamping plate assembly 8 can be horizontally displaced toward the second clamping plate assembly 10 along the sliding rod 9 on the base 1 until they are against each other, so as to clamp and fix the ball teeth to be processed. When removing the ball teeth after the processing is completed, the rotating block 5 can be rotated in the opposite direction so that the first clamping plate assembly 8 can be displaced backward along the sliding rod 9 and away from the second clamping plate assembly 10, so as to remove the ball teeth. This design makes the clamping and fixing operation of the ball teeth relatively simple, and avoids the need to spend more time and energy on the installation and removal operations of the ball teeth during batch processing. In order to solve the problem of work during operation, during the clamping and fixing process, the elastic force of the spring 804 in the groove 803 is first used to push the support rod 806 on the limit block 805 out from the inside of the telescopic groove 809, so that the anti-sliding block 807 contacts and abuts against the ball tooth, thereby limiting the ball tooth and preventing the ball tooth from sliding in the positioning groove 802, thereby improving the stability and firmness of the ball tooth. The rubber layer 808 is then set to prevent the clamping force from being too large when the splint body 801 contacts the ball tooth and causes wear, while making the positioning groove 802 closer to the ball tooth, thereby further improving the limiting and fixing effect of the ball tooth. This design avoids the ball tooth from sliding easily during processing, which causes workers to make mistakes when processing the ball tooth and causes damage to the ball tooth, thereby indirectly increasing the production cost and having strong practicality.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fixture for machining carbide ball gears, comprising a base (1), characterized in that: A fixing plate (2) is arranged on one side of the top of the base (1), a bearing seat (3) is arranged on one side of the fixing plate (2), a rotating rod (4) is arranged on one side of the bearing seat (3), a rotating block (5) is arranged on one side of the outer surface of the rotating rod (4), a stud (6) is arranged on one end of the rotating rod (4), a threaded barrel (7) is arranged on the outer surface of the stud (6), a first clamping plate assembly (8) is arranged on one side of the threaded barrel (7), a sliding rod (9) is arranged at the bottom end of the first clamping plate assembly (8), and a second clamping plate assembly (10) is arranged in the middle of the top of the base (1); The first clamping plate assembly (8) comprises a clamping plate body (801), a positioning groove (802) is provided on one side of the clamping plate body (801), a groove (803) is provided on the clamping plate body (801) on the side of the positioning groove (802), a spring (804) is arranged inside the groove (803), a limit block (805) is arranged on one side of the spring (804), a support rod (806) is arranged on one side of the limit block (805), an anti-sliding block (807) is arranged at one end of the support rod (806), a rubber layer (808) is arranged inside the positioning groove (802), and a telescopic groove (809) is provided on one side of the rubber layer (808).

2. A cemented carbide button gear machining fixture according to claim 1, characterized in that: One end of the rotating rod (4) is fixedly connected to a stud (6), the other end of the rotating rod (4) is mounted on a bearing seat (3) through a rotating connection, and the outer surface of the rotating rod (4) is fixedly connected to a rotating block (5).

3. The processing fixture of cemented carbide button gear according to claim 1, characterized in that: The interior of the threaded barrel (7) is threadedly connected to the stud (6); the inner cavity of the threaded barrel (7) is arranged in a convex shape; one end of the threaded barrel (7) is fixedly connected and mounted on the side wall of the first clamping plate assembly (8).

4. The processing fixture of cemented carbide button gear according to claim 1, characterized in that: The size of the first clamping plate assembly (8) matches the size of the second clamping plate assembly (10), and there are four groups of the first clamping plate assemblies (8). The four groups of the first clamping plate assemblies (8) are arranged in a rectangular shape on the top of the base (1).

5. The machining fixture for cemented carbide button gear according to claim 1, characterized in that: One end of the support rod (806) is connected to the anti-sliding block (807), and the other end of the support rod (806) passes through the telescopic slot (809) and the groove (803) to be connected to the limit block (805), and the size of the limit block (805) is adapted to the size of the groove (803).

6. The machining fixture for cemented carbide button gear according to claim 1, characterized in that: The size of the anti-sliding block (807) is compatible with the size of the telescopic slot (809), the number of the anti-sliding blocks (807) is several groups, and the anti-sliding blocks (807) are arranged in a ring array.

7. The machining fixture for cemented carbide button gear according to claim 1, characterized in that: The front sides of the rubber layer (808) and the positioning groove (802) are both arranged in an arc shape, and the rubber layer (808) is installed in the positioning groove (802) by bonding.

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