Gear honing clamp

Abstract

The utility model relates to the technical field of clamps, and discloses a gear honing clamp which comprises a clamp body and a workpiece body, the workpiece body is arranged in the clamp body, an inclined end face is arranged at one end of the clamp body, an outer sleeve frame is arranged at the other end of the clamp body, and a connecting bolt is arranged between the clamp body and the outer sleeve frame for connection. A pull rod is fixedly connected into the outer sleeve frame, an inner sleeve frame is fixedly connected into the clamp body, a limiting spring is fixedly connected into the inner sleeve frame, the workpiece body is centered and radially positioned through cooperation of the floating tip and the limiting spring, and the workpiece body is connected with the pull rod of an external machine tool through the pull rod. According to the clamp, the connecting bolt can drive the limiting expansion sleeve to move up and down, the limiting expansion sleeve slides along with the inclined end face of the end of the clamp body, and therefore the workpiece body is clamped and loosened, and the machining precision and the machining quality of the workpiece body are guaranteed in this way.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, and in particular to a gear honing clamp. Background Art

[0002] Gear honing is a gear finishing technology, which is mainly used to remove the oxide scale and burrs on the surface of gear teeth after quenching, improve the tooth surface roughness, and improve the accuracy of gears. The principle of gear honing is similar to that of gear shaving. The honing wheel and the workpiece are similar to a pair of helical gears meshing without side clearance. The relative sliding at the meshing point and a certain pressure between the tooth surfaces are used for gear honing.

[0003] During the gear honing process, in order to make it more stable, the workpiece needs to be positioned, and a positioning tool is needed. During the gear honing process, two ejectors are generally used to limit the workpiece, and the two ejectors are generally located at the two end faces of the workpiece, so that the center of the workpiece and the center of the ejector are located on the same straight line. In the prior art, during the clamping of the workpiece, the end face of the workpiece is only squeezed and not fully controlled, resulting in the workpiece still being able to rotate during the processing, resulting in incomplete processing. Utility Model Content

[0004] The utility model aims to provide a gear honing fixture to solve the problem that during the clamping process of the workpiece, the end face of the workpiece is only squeezed but not completely controlled, resulting in the workpiece still being able to rotate during the processing, causing incomplete processing.

[0005] The utility model provides the following technical solution: a gear honing fixture, comprising a fixture body and a workpiece body, the workpiece body being arranged inside the fixture body, an end of the fixture body being provided with an inclined end face, the other end of the fixture body being provided with an outer frame, and the fixture body and the outer frame being connected by connecting bolts, the inner part of the outer frame being fixedly connected with a pull rod, the inner part of the fixture body being fixedly connected with an inner frame, the inner part of the inner frame being fixedly connected with a limit spring, the end of the limit spring being fixedly connected with a floating center, and the end of the fixture body being provided with an auxiliary structure for controlling the tightness of the workpiece body.

[0006] By adopting the above scheme, the limit spring and floating center design inside the inner sleeve can be adaptively adjusted according to the size and shape of the workpiece body to achieve a stable clamping effect. The elastic effect of the limit spring can offset the vibration and impact generated by the workpiece during the processing to a certain extent, and protect the workpiece from damage. The end of the clamp body is provided with an auxiliary structure for controlling the tightness of the workpiece body, so that the operator can easily adjust the clamping force of the clamp on the workpiece.

[0007] As a preferred embodiment of the above technical solution, the auxiliary structure includes a limit expansion sleeve bolted on the end of the clamp body, and the inner wall of the limit expansion sleeve is slidably connected to the inclined end surface.

[0008] By adopting the above scheme, the limit expansion sleeve in the auxiliary structure is connected to the end of the clamp body through bolts, and the inner wall is slidably connected to the inclined end surface. By adjusting the screw-in depth of the bolts, the sliding distance of the limit expansion sleeve on the inclined end surface can be controlled, thereby achieving precise adjustment of the tightness of the workpiece body.

[0009] As a preferred embodiment of the above technical solution, the end of the limiting expansion sleeve is sleeved on the outer wall of the workpiece body.

[0010] By adopting the above scheme, the connection between the workpiece body and the limiting expansion sleeve can realize the restraint of the workpiece body when the limiting expansion sleeve needs to be adjusted, thereby achieving the purpose of limiting.

[0011] As a preferred embodiment of the above technical solution, an annular support frame is provided at the end of the inner sleeve frame inside the clamp body, and a spring clip chuck is provided at the end of the annular support frame. A plurality of spring clips are fixedly connected to the internal annular array of the spring clip chuck.

[0012] By adopting the above scheme, the design of the annular support frame can evenly disperse the clamping force to prevent the workpiece from moving or rotating during the processing. The spring design of the annular array inside the spring chuck enables the chuck to provide a more uniform clamping force when clamping the workpiece, which helps to prevent the workpiece from being deformed or damaged due to uneven force during the processing.

[0013] As a preferred embodiment of the above technical solution, both ends of the workpiece body are provided with positioning end faces, and an end of one of the positioning end faces is provided with a tailstock top for positioning the workpiece body.

[0014] By adopting the above scheme, by setting positioning end faces at the two ends of the workpiece body, the precise positioning of the workpiece in the fixture can be ensured. The positioning end faces are tightly matched with the top part of the fixture, which can limit the movement and rotation of the workpiece during the processing, thereby improving the processing accuracy. The positioning end faces enable the workpiece to be quickly installed in the fixture, and the clamping force of the fixture can be adjusted to adapt to workpieces of different sizes.

[0015] As a preferred embodiment of the above technical solution, a sealing ring which is sealed with an external machine tool is fixedly connected to the outer wall of the outer frame.

[0016] By adopting the above solution, after being connected to an external machine tool, the setting of the sealing ring can seal the connection between the two, thereby avoiding leakage during use.

[0017] As a preferred embodiment of the above technical solution, the tailstock center and the floating center are located on the same straight line, and the center of the circle is also located on the same straight line, and the end of the floating center is set in a cone shape.

[0018] With the above solution, since the tailstock center and the floating center are located on the same straight line, and the center of the circle is also located on the same straight line, this design can ensure the precise positioning of the workpiece in the fixture. The conical end design of the floating center can better contact the surface of the workpiece, provide a more uniform clamping force, reduce the deformation or displacement of the workpiece due to uneven force during processing, and further improve the processing accuracy.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In the utility model, the workpiece body is centered and radially positioned through the cooperation of the floating center and the limit spring, and is connected to the pull rod of the external machine tool through the pull rod. By tightening and loosening the pull rod, the connecting bolt can drive the limit expansion sleeve to move up and down, and the limit expansion sleeve slides along the inclined end surface of the end of the fixture body, thereby achieving clamping and loosening of the workpiece body, thereby ensuring the processing accuracy and processing quality of the workpiece body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of a gear honing fixture;

[0022] Figure 2 The figure is a schematic diagram of the overall split structure of a gear honing fixture;

[0023] Figure 3 This is a schematic diagram of the overall disassembly structure of a gear honing fixture;

[0024] Figure 4 It is a schematic diagram of the main structure of a workpiece in a gear honing fixture;

[0025] Figure 5 The figure is a schematic diagram of the structure of an annular support frame in a gear honing fixture.

[0026] In the figure: 1. Clamp body; 11. Outer frame; 12. Pull rod; 13. Tail stock center; 14. Sealing ring; 15. Bevel end face; 16. Spring clip chuck; 161. Spring clip; 2. Workpiece body; 21. Positioning end face; 3. Limit expansion sleeve; 4. Inner frame; 41. Limit spring; 42. Annular support frame; 43. Floating center; 44. Connecting bolt. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a gear honing fixture, comprising a fixture body 1 and a workpiece body 2, the workpiece body 2 is arranged inside the fixture body 1, an end of the fixture body 1 is provided with an inclined end face 15, the other end of the fixture body 1 is provided with an outer frame 11, and a connecting bolt 44 is provided between the fixture body 1 and the outer frame 11 for connection, so that when the fixture body 1 moves, the outer frame 11 will also move, the outer frame 11 is fixedly connected with a pull rod 12 inside, and the fixture body 1 is fixedly connected with a pull rod 12 inside. An inner sleeve frame 4, the inner interior of the inner sleeve frame 4 is fixedly connected with a limit spring 41, and the end of the limit spring 41 is fixedly connected with a floating center point 43, so that when the floating center point 43 is pressurized, it can compress the limit spring 41, thereby better limiting the workpiece body 2, and the end of the clamp body 1 is provided with an auxiliary structure for controlling the tightness of the workpiece body 2, the auxiliary structure includes a limit expansion sleeve 3 bolted on the end of the clamp body 1, the inner wall of the limit expansion sleeve 3 is slidably connected to the inclined end face 15, and the end of the limit expansion sleeve 3 is sleeved on the outer wall of the workpiece body 2.

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, an annular support frame 42 is provided at the end of the inner sleeve frame 4 inside the fixture body 1, and a spring clip chuck 16 is provided at the end of the annular support frame 42. A plurality of spring clips 161 are fixedly connected to the internal annular array of the spring clip chuck 16. The spring clip 161 can cooperate with the spring clip chuck 16 to wrap the workpiece body 2 to further limit the position thereof. Positioning end faces 21 are provided at both ends of the workpiece body 2, and a tailstock center 13 for positioning the workpiece body 2 is provided at the end of one of the positioning end faces 21. A sealing ring 14 that is sealed with an external machine tool is fixedly connected to the outer wall of the outer sleeve frame 11. The tailstock center 13 and the floating center 43 are located on the same straight line, and the center of the circle is also located on the same straight line. The end of the floating center 43 is set in a cone shape.

[0030] Working principle: When in use, connect the pull rod 12 to the pull rod of the external machine tool, and then insert the workpiece into the inside of the fixture body 1. In this process, the tailstock center 13 presses against the end face of the workpiece body 2. When the workpiece body 2 is inserted into the inside of the fixture body 1, it will be squeezed to the inclined end face 15. At this time, the inclined end face 15 can wrap the workpiece body 2 and play a certain restraining role. Then the other end face of the workpiece body 2 will exert pressure on the floating center 43, and the floating center 43 moves backward after being pressed, further squeezing the limit spring 41, and the floating center 43 is in the limit With the help of the spring 41, the workpiece body 2 is restricted, and because the end face of the floating center 43 is conical, after the workpiece body 2 squeezes the floating center 43, centering and radial positioning can be achieved. The pull rod of the external machine tool is connected through the pull rod 12. By tightening and loosening the pull rod 12, the connecting bolt 44 can drive the limit expansion sleeve 3 to move up and down, and the limit expansion sleeve 3 will slide along the inclined end face 15 at the end of the fixture body 1, thereby achieving clamping and loosening of the workpiece body 2, and in this way ensuring the processing accuracy and processing quality of the workpiece body 2.

[0031] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A gear honing fixture, comprising a fixture body (1) and a workpiece body (2), characterized in that: The workpiece body (2) is arranged inside the fixture body (1), and an inclined end surface (15) is arranged at the end of the fixture body (1), and an outer frame (11) is arranged at the other end of the fixture body (1), and a connecting bolt (44) is arranged between the fixture body (1) and the outer frame (11) for connection, and a pull rod (12) is fixedly connected inside the outer frame (11), and an inner frame (4) is fixedly connected inside the fixture body (1), and a limit spring (41) is fixedly connected inside the inner frame (4), and a floating center (43) is fixedly connected at the end of the limit spring (41), and an auxiliary structure for controlling the tightness of the workpiece body (2) is arranged at the end of the fixture body (1).

2. A gear honing fixture according to claim 1, characterized in that: The auxiliary structure comprises a limit expansion sleeve (3) which is bolted onto the end of the clamp body (1), and the inner wall of the limit expansion sleeve (3) is slidably connected to the inclined end surface (15).

3. A gear honing fixture according to claim 2, characterized in that: The end of the limiting expansion sleeve (3) is sleeved on the outer wall of the workpiece body (2).

4. A gear honing fixture according to claim 1, characterized in that: An annular support frame (42) is provided at the end of the inner sleeve frame (4) inside the clamp body (1), and a spring clip chuck (16) is provided at the end of the annular support frame (42). A plurality of spring clips (161) are fixedly connected in an annular array inside the spring clip chuck (16).

5. The gear honing fixture according to claim 1, characterized in that: Both ends of the workpiece body (2) are provided with positioning end faces (21), and one end of the positioning end faces (21) is provided with a tailstock top (13) for positioning the workpiece body (2).

6. The gear honing fixture according to claim 1, characterized in that: The outer wall of the outer frame (11) is fixedly connected with a sealing ring (14) which is sealed with an external machine tool.

7. The gear honing fixture according to claim 5, characterized in that: The tailstock center (13) and the floating center (43) are located on the same straight line, and the center of the circle is also located on the same straight line. The end of the floating center (43) is arranged in a cone shape.

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