CN222569488U

CN222569488U - Gear honing fixture

Info

Publication number: CN222569488U
Application number: CN202421343933.6U
Authority: CN
Inventors: 李万俊; 潘子军
Original assignee: Ningbo Mingjie Technology Service Co ltd
Current assignee: Ningbo Mingjie Technology Service Co ltd
Priority date: 2024-06-13
Filing date: 2024-06-13
Publication date: 2025-03-07
Anticipated expiration: 2034-06-13

Abstract

The utility model relates to the technical field of clamps and discloses a gear honing clamp which comprises a clamp main body and a workpiece main body, wherein the workpiece main body is arranged in the clamp main body, an inclined end face is arranged at the end part of the clamp main body, an outer sleeve frame is arranged at the other end part of the clamp main body, a connecting bolt is arranged between the clamp main body and the outer sleeve frame for connection, a pull rod is fixedly connected to the inner part of the outer sleeve frame, an inner sleeve frame is fixedly connected to the inner sleeve frame, a limiting spring is fixedly connected to the inner sleeve frame, the workpiece main body realizes centering and radial positioning through the cooperation of a floating center and the limiting spring, and is connected with a pull rod of an external machine tool through the pull rod, the connecting bolt can drive a limiting expansion sleeve to move up and down along with the inclined end face of the end part of the clamp main body through pulling the tensioning and releasing of the pull rod, so that the workpiece main body is clamped and released, and the machining precision and the machining quality of the workpiece main body are ensured in this way.

Description

Gear honing fixture

Technical Field

The utility model relates to the technical field of clamps, in particular to a gear honing clamp.

Background

The gear honing technology is mainly used for removing oxide skin and burrs on the gear tooth surface of a quenched gear, improving the roughness of tooth surfaces and improving the accuracy of the gear, and is similar to gear shaving in principle, wherein the gear honing principle is similar to that of gear shaving, the gear honing and a workpiece are meshed without side gaps similar to a pair of spiral gears, and the gear honing is performed by utilizing relative sliding of the meshed parts and applying certain pressure between the tooth surfaces.

During honing, in order to enable the honing machine to be more stable, a workpiece needs to be positioned, a positioning tool is needed, in the honing machining process, the workpiece is limited in a mode of two ejector pins, the two ejector pins are generally located at two end faces of the workpiece, and therefore the circle center of the workpiece and the circle center of the ejector pins are located on the same straight line.

Disclosure of utility model

The utility model aims to provide a gear honing fixture which solves the problem that in the process of machining, a workpiece is likely to rotate due to old time because the end face of the workpiece is only extruded and is not completely controlled in the process of clamping the workpiece, so that the condition of incomplete machining is caused.

The gear honing fixture comprises a fixture main body and a workpiece main body, wherein the workpiece main body is arranged in the fixture main body, an inclined end face is arranged at the end part of the fixture main body, an outer sleeve frame is arranged at the other end part of the fixture main body, a connecting bolt is arranged between the fixture main body and the outer sleeve frame for connection, a pull rod is fixedly connected to the inner part of the outer sleeve frame, an inner sleeve frame is fixedly connected to the inner part of the fixture main body, a limiting spring is fixedly connected to the inner part of the inner sleeve frame, a floating center is fixedly connected to the end part of the limiting spring, and an auxiliary structure for controlling the tightness of the workpiece main body is arranged at the end part of the fixture main body.

By adopting the scheme, the limit spring and the floating center inside the inner sleeve frame can be adaptively adjusted according to the size and the shape of the workpiece main body, so that a stable clamping effect is realized, the vibration and the impact generated in the processing process of the workpiece can be counteracted to a certain extent by the elastic action of the limit spring, the workpiece is protected from being damaged, and the end part of the clamp main body is provided with an auxiliary structure for controlling the tightness of the workpiece main body, so that an operator can conveniently adjust the clamping force of the clamp on the workpiece.

As the optimization of the technical scheme, the auxiliary structure comprises a limit expansion sleeve sleeved at the end part of the clamp main body through bolts, and the inner wall of the limit expansion sleeve is slidably connected to the inclined end face.

By adopting the scheme, the limiting expansion sleeve in the auxiliary structure is sleeved at the end part of the clamp main body through the bolt, the inner wall is slidably connected onto the inclined end surface, and the sliding distance of the limiting expansion sleeve on the inclined end surface is controlled by adjusting the screwing depth of the bolt, so that the tightness of the workpiece main body is accurately adjusted.

As the optimization of the technical scheme, the end part of the limit expansion sleeve is sleeved on the outer wall of the workpiece main body.

By adopting the scheme, the workpiece main body and the limiting expansion sleeve are connected, and when the limiting expansion sleeve needs to be adjusted, the workpiece main body can be restrained, so that the limiting purpose is achieved.

As the optimization of the technical scheme, the end part of the clamp main body, which is positioned at the inner sleeve frame, is provided with an annular supporting bracket, the end part of the annular supporting bracket is provided with an elastic sheet chuck, and a plurality of elastic sheets are fixedly connected with an annular array in the elastic sheet chuck.

By adopting the scheme, the design of the annular support bracket can uniformly disperse the clamping force, so that the workpiece is prevented from moving or rotating in the processing process, the elastic pieces of the annular array inside the elastic piece chuck are designed, the chuck can provide more uniform clamping force when clamping the workpiece, and the workpiece is prevented from being deformed or damaged due to uneven stress in the processing process.

As a preferable mode of the above technical scheme, two ends of the workpiece main body are provided with positioning end faces, and one end of one positioning end face is provided with a tailstock center for positioning the workpiece main body.

By adopting the scheme, the two ends of the workpiece main body are provided with the positioning end faces, so that the workpiece can be accurately positioned in the clamp, the positioning end faces are tightly matched with the center part of the clamp, and the movement and rotation of the workpiece in the machining process can be limited, so that the machining precision is improved, the workpiece can be quickly mounted in the clamp, and the clamping force of the clamp can be adjusted to adapt to workpieces with different sizes.

As the optimization of the technical scheme, the outer wall of the outer sleeve frame is fixedly connected with a sealing ring which is sealed with an external machine tool.

By adopting the scheme, after the sealing ring is connected with an external machine tool, the sealing ring can seal the joint between the sealing ring and the external machine tool, so that the situation that leakage occurs in the using process is avoided.

As the optimization of the technical scheme, the tailstock center and the floating center are positioned on the same straight line, the circle centers are also positioned on the same straight line, and the end parts of the floating center are arranged in a conical shape.

By adopting the scheme, because the tailstock center and the floating center are positioned on the same straight line, and the circle centers are also positioned on the same straight line, the design can ensure the accurate positioning of the workpiece in the clamp, the conical end part of the floating center is designed, the floating center can better contact with the surface of the workpiece, more uniform clamping force is provided, the deformation or displacement of the workpiece caused by uneven stress in the processing process is reduced, and the processing precision is further improved.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, centering and radial positioning of the workpiece main body are realized through the cooperation of the floating center and the limiting spring, the pull rod is connected with the pull rod of an external machine tool, the connecting bolt can drive the limiting expansion sleeve to move up and down through pulling the pull rod to tighten and loosen, and the limiting expansion sleeve slides along with the inclined end face of the end part of the clamp main body, so that the workpiece main body is clamped and loosened, and the machining precision and the machining quality of the workpiece main body are ensured through the mode.

Drawings

FIG. 1 is a schematic view of a gear honing fixture;

FIG. 2 is a schematic view of an overall split structure of a gear honing fixture;

FIG. 3 is a schematic view of an overall assembly and disassembly structure of a gear honing fixture;

FIG. 4 is a schematic view of the main structure of a workpiece in a gear honing fixture;

Fig. 5 is a schematic view of the structure of the annular support bracket in the gear honing fixture.

The clamp comprises a clamp body 1, an outer sleeve frame 11, a pull rod 12, a tail seat center 13, a 14, a sealing ring 15, an inclined end face 16, an elastic sheet chuck 161, an elastic sheet 2, a workpiece body 21, a positioning end face 3, a limiting expansion sleeve 4, an inner sleeve frame 41, a limiting spring 42, an annular support bracket 43, a floating center 44 and a connecting bolt.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1 and 2, the utility model provides a technical scheme that the honing fixture comprises a fixture main body 1 and a workpiece main body 2, wherein the workpiece main body 2 is arranged in the fixture main body 1, an inclined end face 15 is arranged at the end part of the fixture main body 1, an outer sleeve frame 11 is arranged at the other end part of the fixture main body 1, a connecting bolt 44 is arranged between the fixture main body 1 and the outer sleeve frame 11 for connection, so that when the fixture main body 1 moves, the outer sleeve frame 11 also moves, a pull rod 12 is fixedly connected to the inner part of the outer sleeve frame 11, an inner sleeve frame 4 is fixedly connected to the inner part of the fixture main body 1, a limiting spring 41 is fixedly connected to the inner part of the inner sleeve frame 4, and a floating center 43 is fixedly connected to the end part of the limiting spring 41, so that after the floating center 43 is pressed, the limiting spring 41 can be compressed, thereby better limiting the workpiece main body 2 is arranged at the end part of the fixture main body 1, the auxiliary structure for controlling the tightness of the workpiece main body 2 comprises a limiting sleeve 3 sleeved on the end part of the fixture main body 1, the inner wall of the limiting sleeve 3 is slidably connected to the inclined end face 15, and the end part of the limiting sleeve 3 is sleeved on the outer wall of the workpiece 2.

As shown in fig. 2, 3 and 4, an annular supporting bracket 42 is arranged at the end part of the inner sleeve frame 4 inside the clamp main body 1, an elastic sheet chuck 16 is arranged at the end part of the annular supporting bracket 42, a plurality of elastic sheets 161 are fixedly connected to an annular array inside the elastic sheet chuck 16, the elastic sheets 161 can be matched with the elastic sheet chuck 16, so that the workpiece main body 2 is wrapped, the workpiece main body 2 is further limited, positioning end faces 21 are arranged at two end parts of the workpiece main body 2, a tailstock center 13 for positioning the workpiece main body 2 is arranged at the end part of one positioning end face 21, a sealing ring 14 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 positioned on the same straight line, the circle centers are also positioned on the same straight line, and the end parts of the floating center 43 are arranged in a conical shape.

The working principle is that when the clamp is used, the pull rod 12 is connected with a pull rod of an external machine tool, a workpiece is inserted into the clamp body 1, the tail seat center 13 is propped against the end face of the workpiece body 2 in the process, the tail seat center 13 is extruded to the inclined end face 15 when the workpiece body 2 is inserted into the clamp body 1, the inclined end face 15 can wrap the workpiece body 2 and has a certain binding property, then the other end face of the workpiece body 2 can apply pressure to the floating center 43, the floating center 43 moves backwards after being pressed, the limiting spring 41 is further extruded, the floating center 43 is in a conical shape with the aid of the limiting spring 41, centering and radial positioning can be achieved after the workpiece body 2 extrudes the floating center 43, the connecting bolt 44 can drive the limiting expansion sleeve 3 to move up and down by pulling the pull rod 12, the limiting expansion sleeve 3 slides along with the inclined end face 15 at the end of the clamp body 1, and the workpiece body 2 is clamped and loosened, and the machining precision of the workpiece body 2 is guaranteed.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting.

Claims

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

2. The gear honing fixture according to claim 1, wherein the auxiliary structure comprises a limit expansion sleeve (3) sleeved at the end part of the fixture main body (1) through bolts, and the inner wall of the limit expansion sleeve (3) is connected to the inclined end face (15) in a sliding manner.

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

4. A gear honing fixture as claimed in claim 1, wherein an annular supporting bracket (42) is arranged at the end part of the fixture main body (1) positioned at the inner sleeve frame (4), an elastic sheet chuck (16) is arranged at the end part of the annular supporting bracket (42), and a plurality of elastic sheets (161) are fixedly connected to an annular array inside the elastic sheet chuck (16).

5. A gear honing fixture as claimed in claim 1, characterized in that both end portions of the workpiece main body (2) are provided with positioning end faces (21), and an end portion of one of the positioning end faces (21) is provided with a tailstock center (13) for positioning the workpiece main body (2).

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

7. A gear honing fixture as claimed in claim 5, characterized in that the tailstock center (13) and the floating center (43) are positioned on the same straight line, and the circle centers are also positioned on the same straight line, and the end parts of the floating center (43) are arranged in a conical shape.