A fixture and clamping method for end gear disc processing

Abstract

The present invention discloses a fixture and a clamping method for processing an end toothed disc, which belongs to the field of processing equipment. More specifically, it relates to a fixture and a clamping method for processing an end toothed disc, comprising: an inner toothed disc and an outer toothed disc which are fitted together, the inner toothed disc abutting against a receiving cavity of the outer toothed disc; a main body with a receiving space for fixing the inner toothed disc; a movable plate which is arranged in the receiving space; a fixed disc which is sleeved on the main body for fixing the outer toothed disc; a first fixing member whose end can abut against the movable plate; a second fixing member which has one end connected to the movable plate and the other end connected to the fixed disc. The invention comprises a clamping state and a processing state. In the clamping state, the end toothed disc is convenient to be disassembled; in the processing state, a locking force is provided. For a specific end toothed disc, the fixture does not need to adopt a split clamping strategy for it, and the end toothed discs can be processed at the same time.

Description

Technical Field

[0001] The invention belongs to the field of processing equipment, and more specifically, relates to a clamp and a clamping method for end gear disc processing. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. Fixtures are widely used in the mechanical field, especially in various processing processes, such as on grinders, lathes and other equipment.

[0003] The fixtures of existing equipment cannot process the end gear discs of specific structures because the end gear discs are usually composed of multiple gears and have a complex structure. When the existing fixtures clamp the end gear discs, they usually need to be split into separate units for processing to avoid the inconvenience of clamping the complex end gear discs on the fixtures; on the other hand, although there are some fixtures on the market that can clamp the end gear discs, the end gear discs have complex structures and often have the problem of interference with the processing area at the clamping position, resulting in unqualified processing or the need for multiple clamping and multiple processing. Summary of the invention

[0004] The main purpose of the present invention is to provide a clamp for end gear disc processing.

[0005] The technical solution adopted by the present invention is:

[0006] .A fixture for end gear disc processing, comprising:

[0007] The inner and outer gear discs are combined with each other.

[0008] A main body, comprising a boss at the upper end for carrying the inner gear disc, and a receiving space at the lower end;

[0009] A movable plate is arranged in the accommodating space, and a connecting hole is arranged on the movable plate;

[0010] A fixed plate, sleeved on the periphery of the boss, for fixedly connecting the outer gear plate;

[0011] A first fixing member, which is screwed to the inner gear disc and the main body in sequence, and a distal end of the first fixing member is in contact with the connecting hole;

[0012] A second fixing member passes through the main body, one end of which is connected to the movable plate, and the other end of which is connected to the fixed plate;

[0013] When the first fixing member is away from the movable plate, the inner gear disc and the outer gear disc are in a first state where the inner gear disc and the outer gear disc can be detached;

[0014] When the first fixing member is in contact with the movable plate, the second fixing member drives the fixing plate downward, thereby achieving a second state of fixing the inner toothed plate and the outer toothed plate.

[0015] In the present technical solution, the clamp is mainly used for the inner gear disc and the outer gear disc which are combined with each other, and the end gear disc comprises an inner gear disc and an outer gear disc, wherein the inner gear disc can be sleeved inside the outer gear disc.

[0016] In order to facilitate the clamping of this type of end gear disc, the clamp also includes a main body, the upper end of the main body is used to fix the inner gear disc, and the outer gear disc is movably mounted in the upper middle part of the main body to facilitate the downward movement of the outer gear disc and thus apply pressure to the inner gear disc.

[0017] After the first fixing member is screwed with the inner gear disc and the main body, the end thereof can abut against the movable plate. The first fixing member can not only play the role of longitudinally fixing the inner gear disc and the main body, but also ensure that the first fixing member can abut against the movable plate, and exert a downward force on the movable plate. Under the action of this force, the movable plate drives the second fixing member to move downward, thereby firmly pressing the outer gear disc on the inner gear disc. There is no need to clamp the surface to be processed of the outer gear disc, thus avoiding interference of the fixture on the surface to be processed.

[0018] That is to say, when the first fixing member fixes the inner gear disc, it can also exert a downward force on the outer gear disc at the same time. Especially when the first fixing member is a screw, it can not only ensure the fixation of the inner gear disc, but also provide a downward force for the outer gear disc. Moreover, due to the characteristics of the screw's own structure, the screw will not interfere with the processing surface.

[0019] Furthermore, a locking piece is also provided in the accommodating space. The locking piece passes through the movable plate and is fixed to the upper wall of the accommodating space. The movable plate can slide on the locking piece.

[0020] In the present technical solution, the purpose of setting a locking member in the accommodating space is to prevent the movable plate from falling off the accommodating space. The preferred installation position of the locking member is closer to the rotating axis of the main body than the second fixing member. The locking member is T-shaped. When the movable plate moves to the bottom end of the locking member, it can better prevent the movable plate from bending under the action of the first fixing member, causing the clamp to lose its function.

[0021] Furthermore, there are three locking pieces, and the angle between every two locking pieces is 120°.

[0022] In this technical solution, the three locking members with an angle of 120° can not only ensure that the movable plate slides smoothly along the locking members, but also ensure that the three locking members can evenly distribute the force of the first fixing member on the movable plate to prevent the movable plate from getting stuck during the downward movement.

[0023] Furthermore, the inner gear disc is provided with a first hole which passes through the inner gear disc longitudinally, the main body is provided with a second hole which passes through the main body longitudinally, the first hole and the second hole are collinear, and the first fixing member is screwed to the first hole and the second hole.

[0024] Furthermore, the first hole is located at the center of the inner gear disc, and the second hole is located at the center of the main body.

[0025] In the present technical solution, preferably, the second hole is located on the rotation axis of the main body, so that when the first fixing member applies a force downward, the force can be evenly distributed on the movable plate.

[0026] Furthermore, the inner gear disc is also provided with first fixing elements for fixing the inner gear disc to the main body, and the first fixing elements are arranged in a ring array around the first fixing member.

[0027] In addition, by fixing the first fixing element with the corresponding first fixing hole, the inner gear disc cannot rotate with the main body, thereby avoiding the rotation of the inner gear disc during the processing, resulting in unqualified processing.

[0028] Furthermore, the fixed disk is provided with a second fixing element for fixing the outer toothed disk to the fixed disk, the second fixing elements are arranged in a ring array around the first fixing element, and the arrangement diameter of the second fixing elements is larger than the arrangement diameter of the first fixing elements.

[0029] Furthermore, the inner toothed disc includes a first upper end face and a first middle end face, the outer toothed disc includes a receiving cavity that can accommodate the inner toothed disc, and the outer toothed disc also includes a second upper end face and a second middle end face, the first middle end face abuts against the second middle end face, and the first upper end face and the second upper end face are surfaces to be processed.

[0030] In the present technical solution, an inner toothed disc and an outer toothed disc which are fitted together are further defined, wherein the inner toothed disc has a first middle end face and the outer toothed disc has a second middle end face, and when the inner toothed disc is fitted inside the outer toothed disc, the second middle end face applies downward pressure to the first middle end face.

[0031] The present invention also discloses a clamping method for end gear disc processing, which uses the clamp for end gear disc processing and comprises the following steps:

[0032] The fixture for end gear disc processing is fixed on the machine tool by locking the outer profile of the main body;

[0033] Install the inner gear disc on the top of the main body;

[0034] Screw the first fixing member to the inner gear disc and the main body;

[0035] Buckle the outer toothed disc onto the inner toothed disc, and fix the outer toothed disc to the fixed disc;

[0036] Screw the second fixing piece passing through the movable plate and the main body to the fixing plate;

[0037] The first fixing member is screwed until it contacts the movable plate, and the movable plate is pushed downward to tighten the second fixing member connected to the main body.

[0038] One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

[0039] In the present invention, for a specific end toothed disc, the clamp does not need to adopt a disassembly and clamping strategy, and the inner toothed disc and the outer toothed disc can be processed at the same time, which is convenient and quick. Moreover, the first fixing member can not only fix the inner toothed disc, but also indirectly act on the outer toothed disc, thereby causing the outer toothed disc to further fix the inner toothed disc, thereby completing the self-locking of the end toothed disc.

[0040] In addition, since the fixture does not interfere with the surface to be processed during the clamping process, there is no need to disassemble and re-clamp the end gear disc during the processing. The processing can be completed with one clamping, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0042] Figure 1 It is a cross-sectional view of the inner gear disc;

[0043] Figure 2 It is a cross-sectional view of the outer gear disc;

[0044] Figure 3 It is a cross-sectional view of the present invention. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0050] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0051] Reference Figures 1 to 3 As shown, a fixture for end toothed disc processing is provided, including an inner toothed disc 1 and an outer toothed disc 2 which are fitted together, wherein the inner toothed disc 1 is convex, and includes a first upper end face 11 and a first middle end face 12, wherein the inner toothed disc 1 is provided with a first hole, and the first hole longitudinally penetrates the inner toothed disc 1, and preferably the first hole coincides with the rotation axis of the inner toothed disc 1. The aforementioned outer toothed disc 2 includes a second upper end face 22 and a second middle end face 23, and a receiving chamber 21 is provided in the middle and lower part of the outer toothed disc 2, and the function of the receiving chamber 21 is to receive the inner toothed disc 1, and when the inner toothed disc 1 is in the receiving chamber 21, the first middle end face 12 and the second middle end face 23 can abut against each other. The first upper end face 11 and the second upper end face 22 are surfaces to be processed.

[0052] A clamp for end gear plate processing also includes a main body 3, the main body 3 includes a boss, and the boss is located at the upper end of the main body 3. The main body 3 is provided with a second hole, the second hole runs through the main body 3 and the boss, and the second hole preferably coincides with the rotation axis of the main body 3. The middle and lower part of the main body 3 is provided with an accommodating space 31, a movable plate 32 is provided in the accommodating space 31, and a fixed disk 33 is provided in the middle and upper part of the main body 3. The fixed disk 33 is sleeved on the outer periphery of the main body 3, and the fixed disk 33 can slide along the longitudinal direction of the main body 3.

[0053] The inner toothed disc 1 is arranged on the boss, and the outer toothed disc 2 is mounted on the fixed disc 33. In detail, the inner toothed disc 1 and the main body 3 are fixed by a first fixing member 34, which is screwed to the first hole and the second hole, and the end of the first fixing member 34 can freely abut against the movable plate 32. The movable plate 32 and the fixed disc 33 are connected by a second fixing member 35. In detail, the second fixing member 35 passes through the movable plate 32 and the main body 3 from bottom to top and is connected to the fixed disc 33. The connection mode of the second fixing member 35 and the fixed disc 33 can be selected as a detachable connection or a fixed connection.

[0054] The fixture for processing the end toothed disc includes a first state and a second state. When the first fixing member 34 is away from the movable plate 32, the first state is provided in which the inner toothed disc 1 and the outer toothed disc 2 can be disassembled. Specifically, in the first state, the inner toothed disc 1 is fixed to the boss, the first fixing member 34 passes through the inner toothed disc 1 and the main body 3, but does not abut against the movable plate 32, and the outer toothed disc 2 is fixed on the fixed plate 33. In the first state, the inner toothed disc 1 and the outer toothed disc 2 are relatively easy to be disassembled and assembled separately, and can also be disassembled and assembled on the main body 3 together. When the fixture for processing the end toothed disc is in the second state, the first fixing member 34 is screwed so that the first fixing member 34 passes through the main body 3 and abuts against the movable plate 32. When the movable plate 32 moves downward, the second fixing member 35 is driven to move downward, thereby causing the outer toothed disc 2 installed on the fixed plate 33 to move downward. Since the inner toothed disc 1 is arranged in the accommodating cavity 21, when the outer toothed disc 2 moves downward, it will press the inner toothed disc 1 downward, further fixing the inner toothed disc 1.

[0055] In the present invention, the first fixing member 34 applies a downward force to the inner gear disc 1, and at the same time, the first fixing member 34 drives the second fixing member 35 to move downward, causing the outer gear disc 2 to also move downward. The outer gear disc 2 applies a force to the inner gear disc 1 at the same time. By adjusting whether the first fixing member 34 abuts against the movable plate 32 and the strength of the abutment between the first fixing member and the movable plate 32, two forces from different sources can act on the inner gear disc 1 at the same time, which is convenient for fixing the inner gear disc 1 and the outer gear disc 2.

[0056] Furthermore, when the inner toothed disc 1 is installed at the upper end of the main body 3, although the longitudinal freedom is limited under the action of the first fixing member 34, during the processing, the sharpening tool will be processed at different angles, and the inner toothed disc 1 is still likely to rotate horizontally on the main body 3, affecting the processing effect. Therefore, a first fixing hole 13 is also provided in the inner toothed disc 1, and a first fixing element is provided in the first fixing hole 13. The first fixing element passes through the first fixing hole 13 and is connected to the main body 3.

[0057] Similarly, when the outer toothed disc 2 is mounted on the fixed disc 33, the degree of freedom also needs to be limited in the horizontal direction. The outer toothed disc 2 is provided with a second fixing hole 24, and a second fixing element (not shown in the figure) is provided in the second fixing hole 24. The second fixing element passes through the outer toothed disc 2 and is connected to the fixed disc 33. The first fixing element and the second fixing element can be a pin or a bolt.

[0058] In the process of the movable plate 32 moving up and down, the movable plate often falls off in the accommodating space 31, so a locking member 36 is also provided in the accommodating space 31. The locking member 36 passes through the movable plate 32 and is fixed to the upper end of the accommodating space 31. The movable plate 32 can slide freely along the locking member 36. Preferably, the locking member 36 is T-shaped. In this embodiment, there are three locking members 36, wherein the angle between two adjacent locking members 36 is 120°. The locking member 36 not only plays the role of preventing falling off in the present invention, but also plays the role of sharing the force exerted by the first fixing member 34 on the movable plate 32, thereby preventing the movable plate from bending due to the force exerted by the first fixing member 34.

[0059] The present invention also provides a clamping method for an end gear disc, using a clamp for machining an end gear disc, comprising the following steps:

[0060] The fixture for end gear disc machining is fixed on the machine tool by locking the outer profile of the main body 3;

[0061] Install the inner gear disc 1 on the top of the main body 3;

[0062] The first fixing member 34 is screwed to the inner gear disc 1 and the main body 3;

[0063] Buckle the outer gear disc 2 onto the inner gear disc 1, and fix the outer gear disc 2 to the fixed disc 33;

[0064] Screw the second fixing member 35 passing through the movable plate 32 and the main body 3 to the fixing plate 33;

[0065] The first fixing member 34 is screwed until it contacts the movable plate 32 , and the movable plate 32 is pushed downward to tighten the second fixing member 35 connected to the main body 3 .

[0066] It should be added that when installing the inner gear disc 1, it is also necessary to insert the first fixing element into the first fixing hole 13 and screw the first fixing element into the main body 3. When installing the outer gear disc 2, it is necessary to insert the second fixing element into the second fixing hole 24 and screw the second fixing element into the fixing disc 33.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fixture for machining an end toothed disc, comprising an inner toothed disc (1) and an outer toothed disc (2) which are assembled and mounted on each other, characterized in that: A main body (3) comprising a boss at the upper end for supporting the inner gear disc (1), and a receiving space (31) at the lower end; A movable plate (32) is arranged in the accommodating space (31), and a connecting hole is arranged on the movable plate (32); A fixed disk (33) is sleeved on the periphery of the boss and is used for fixedly connecting the outer gear disk (2); A first fixing member (34) is screwed to the inner gear disc (1) and the main body (3) in sequence, and the end of the first fixing member (34) is in contact with the connecting hole; A second fixing member (35) passes through the main body (3), one end of which is connected to the movable plate (32) and the other end of which is connected to the fixing plate (33); When the first fixing member (34) is away from the movable plate (32), the first state is achieved in which the inner toothed disc (1) and the outer toothed disc (2) can be disassembled; When the first fixing member (34) abuts against the movable plate (32), the second fixing member (35) drives the fixing plate (33) downward, thereby achieving a second state in which the inner toothed plate (1) and the outer toothed plate (2) are fixed.

2. The fixture for end gear disc machining according to claim 1 is characterized in that: A locking piece (36) is also provided in the accommodating space (31). The locking piece (36) passes through the movable plate (32) and is fixed to the upper wall of the accommodating space (31). The movable plate (32) can slide on the locking piece (36).

3. The fixture for end gear disc machining according to claim 2 is characterized in that: There are three locking pieces (36), and the angle between every two locking pieces (36) is 120°.

4. The fixture for end gear disc machining according to claim 1, characterized in that: The inner gear disc (1) is provided with a first hole which passes through the inner gear disc (1) longitudinally, and the main body (3) is provided with a second hole which passes through the main body (3) longitudinally, the first hole and the second hole are colinear, and the first fixing member (34) is screwed to the first hole and the second hole.

5. The fixture for end gear disc machining according to claim 4 is characterized in that: The first hole is located at the center of the inner gear disc (1), and the second hole is located at the center of the main body (3).

6. The fixture for end gear disc machining according to claim 4 or 5, characterized in that: The inner toothed disc (1) is also provided with a first fixing element for fixing the inner toothed disc (1) to the main body (3), and the first fixing elements are arranged in a ring array around the first fixing member (34).

7. The fixture for end gear disc machining according to claim 6, characterized in that: The fixed disk (33) is provided with a second fixing element for fixing the outer toothed disk (2) to the fixed disk (33), the second fixing elements being arranged in a ring array around the first fixing member (34), and the arrangement diameter of the second fixing elements being larger than the arrangement diameter of the first fixing elements.

8. The fixture for end gear disc machining according to claim 1, characterized in that: The inner toothed disc (1) comprises a first upper end surface (11) and a first middle end surface (12); the outer toothed disc (2) comprises a receiving cavity (21) capable of accommodating the inner toothed disc (1); the outer toothed disc (2) further comprises a second upper end surface (22) and a second middle end surface (23); the first middle end surface (12) abuts against the second middle end surface (23); and the first upper end surface (11) and the second upper end surface (22) are surfaces to be processed.

9. A clamping method for end gear disc processing, characterized in that: The fixture for end gear disc machining according to any one of claims 1 to 8 comprises the following steps: The clamp for end gear disc machining is fixed on a machine tool by locking the outer profile of the main body (3); Installing the inner gear disc (1) on the top of the main body (3); The first fixing member (34) is screwed to the inner gear disc (1) and the main body (3); The outer toothed disc (2) is buckled onto the inner toothed disc (1), and the outer toothed disc (2) is fixedly connected to the fixed disc (33); The second fixing member (35) passing through the movable plate (32) and the main body (3) is screwed to the fixing plate (33); The first fixing member (34) is screwed until it contacts the movable plate (32), and the movable plate (32) is pushed downward to tighten the second fixing member (35) connected to the main body (3).

Images