CN215469580U

CN215469580U - Gear hole finish turning clamping tool

Info

Publication number: CN215469580U
Application number: CN202122344176.7U
Authority: CN
Inventors: 何伟; 孟岩; 李俊杰
Original assignee: TIANJIN TAIWEI GEAR CO Ltd
Current assignee: TIANJIN TAIWEI GEAR CO Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-01-11
Anticipated expiration: 2031-09-26

Abstract

The utility model provides a gear inner hole finish turning clamping tool which comprises a chuck jaw, a mounting plate and clamping blocks, wherein the mounting plate is fixedly arranged on the jaw of the chuck jaw, the mounting plate is provided with a plurality of clamping blocks, the clamping blocks are installed with the mounting plate in a matched mode, the plurality of clamping blocks clamp a gear to be machined, and every two adjacent clamping blocks are arranged at equal intervals. The utility model has the beneficial effects that: the contact surface between the clamping block and the gear to be machined is increased, so that the stress of the gear to be machined is more uniform in a clamping state, the deformation of the gear to be machined is reduced, the roundness of the inner hole of the gear is improved, the machining qualification rate is ensured, and the production cost is reduced.

Description

Gear hole finish turning clamping tool

Technical Field

The utility model belongs to the technical field of gear machining, and particularly relates to a gear inner hole finish turning clamping tool.

Background

The hole at present automobile engine crankshaft gear need carry out the finish turning operation, and traditional chuck jack catch only has three or four jack catchs, and the jack catch is less with the contact surface of waiting to process the gear, and when pressing from both sides tight gear, the gear that some wall thickness are thinner is pressed from both sides the deformation easily, carries out hole processing under the gear deformation condition, and the circularity of hole processing just can not obtain guaranteeing, and then the influence adds the qualification rate of the processing of gear, has improved manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model aims to provide a gear inner hole finish turning clamping tool to solve the problems of low gear machining yield and high production cost caused by directly clamping a gear to be machined by using a chuck jaw at present.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a tight frock of gear hole finish turning clamp, includes chuck jack catch, mounting panel, presss from both sides tight piece, all set firmly the mounting panel on the jack catch of chuck jack catch, be equipped with a plurality of tight pieces of clamp on the mounting panel, press from both sides tight piece and mounting panel cooperation installation, it is a plurality of press from both sides tight piece clamp and tightly treat the processing gear, the equidistant setting of every two adjacent tight pieces of clamp.

Furthermore, the working surface of the clamping block is an arc-shaped surface matched with the gear to be machined.

Furthermore, the types of the clamping blocks are various, and the arc-shaped surfaces of the clamping blocks in different types have different diameters, so that the clamping blocks are suitable for gears to be machined with different diameters; the clamping block is detachably connected with the mounting plate.

Furthermore, the mounting plate is provided with a mounting groove, the clamping block is provided with a mounting boss matched with the mounting groove, the mounting boss is mounted on the inner side of the mounting groove, and the clamping block is detachably connected with the mounting plate through the mounting boss; and the mounting plate is provided with a limiting assembly for limiting the clamping block.

Furthermore, the limiting assembly comprises a limiting pin and a compression spring, the mounting plate is provided with a spring groove, two ends of the spring groove are provided with mounting through holes matched with the limiting pin, the mounting boss is provided with a limiting hole corresponding to the limiting pin, the diameter of the compression spring is larger than that of the limiting pin, the limiting pin is further fixedly provided with a spring baffle, and the diameter of the spring baffle is larger than that of the compression spring; the limiting pin is installed on the inner side of the installation through hole, the compression spring is installed on the outer side of the limiting pin, the compression spring is located on the inner side of the spring groove, and the spring baffle is installed at one end, close to the installation groove, of the limiting pin.

Furthermore, the end of the limit pin is fixedly provided with a handle, and the surface of the handle is provided with anti-skid grains.

Furthermore, a gasket is arranged on the arc-shaped surface of the clamping block.

Furthermore, the gasket is a structural member made of polytetrafluoroethylene.

Compared with the prior art, the gear inner hole finish turning clamping tool has the following beneficial effects:

(1) according to the gear inner hole finish turning clamping tool, the contact surface between the clamping block and the gear to be machined is increased, so that the stress of the gear to be machined is more uniform in a clamping state, the deformation of the gear to be machined is reduced, the roundness of the gear inner hole is improved, the machining qualified rate is ensured, and the production cost is reduced.

(2) According to the gear inner hole finish turning clamping tool, the contact surface of the clamping block and a gear to be processed is provided with the polytetrafluoroethylene gasket, and the gasket not only plays a role in skid resistance, but also has certain elasticity and can prevent the teeth of the gear from being scratched.

(3) According to the gear inner hole finish turning clamping tool, the clamping blocks are detachably connected with the mounting plate, the arc-shaped surfaces of different clamping blocks correspond to gears with different diameters, and the application range of the tool is widened.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a tooling according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an explosive structure of the tool according to the embodiment of the utility model;

FIG. 3 is a schematic structural diagram of a tool according to an embodiment of the present invention in a front view;

FIG. 4 is a schematic view of a mounting plate according to an embodiment of the present invention;

FIG. 5 is a schematic view of a mounting structure of a limit pin according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a clamping block according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a stop pin according to an embodiment of the utility model.

Description of reference numerals:

1-chuck jaws; 2-mounting a plate; 3-a clamping block; 4-gear to be processed; 5-a limit pin; 6-compression spring; 7-spring baffle; 8-a handle; 9-a gasket; 201-mounting grooves; 202-spring groove; 203-mounting through holes; 301-mounting a boss; 302-limiting hole.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-3, a tight frock of gear hole finish turning clamp, including chuck jack catch 1, mounting panel 2, press from both sides tight piece 3, chuck jack catch 1 adopts current three-jaw chuck, all be equipped with mounting panel 2 on three-jaw chuck's the jack catch, mounting panel 2 passes through bolt and three-jaw chuck's jack catch fixed connection, be equipped with two on the preferred mounting panel 2 and press from both sides tight piece 3, press from both sides tight piece 3 and the cooperation installation of mounting panel 2, a plurality of tight piece 3 of clamp press from both sides tightly wait to process gear 4, every two adjacent tight piece 3 equidistant settings of clamp. The working surface of the clamping block 3 faces the gear 4 to be machined, and the working surface of the clamping block 3 is an arc-shaped surface matched with the gear 4 to be machined. Through setting up six tight pieces of clamp 3, increased the contact surface between tight piece of clamp 3 and the gear 4 of treating processing, make the gear 4 of treating processing atress under the clamping state more even, reduced the deflection of treating the gear 4 of processing, and then improved the circularity of gear hole processing, guaranteed the processing qualification rate, reduced manufacturing cost.

The arc-shaped surface of the clamping block 3 is provided with a gasket 9, and the gasket 9 is a structural member made of polytetrafluoroethylene. The gasket 9 processed by polytetrafluoroethylene has higher wear resistance, prolongs the service life of the tool, and has certain elasticity to prevent the external teeth of the gear from being damaged.

As shown in fig. 6, the working surface of the clamping block 3 is an arc-shaped surface matched with the gear 4 to be processed, the arc-shaped surface increases the contact area between the clamping block 3 and the gear 4 to be processed, so that the clamping effect is firmer, the deformation of the gear 4 to be processed can be reduced, and the processing roundness of the inner hole is further improved. The clamping blocks 3 are of various types, and the arc-shaped surfaces of the clamping blocks 3 of different types are different in diameter, so that the clamping blocks are suitable for gears 4 to be machined with different diameters; the clamping block 3 is detachably connected with the mounting plate 2. The clamping blocks 3 are detachably connected with the mounting plate 2, the arc-shaped surfaces of the different clamping blocks 3 correspond to gears with different diameters, and the tool widening device is applicable to a wide scene.

As shown in fig. 4, 5 and 7, the mounting plate 2 is provided with a mounting groove 201, the clamping block 3 is provided with a mounting boss 301 matched with the mounting groove 201, the mounting boss 301 is mounted inside the mounting groove 201, and the clamping block 3 is detachably connected with the mounting plate 2 through the mounting boss 301; the mounting plate 2 is provided with a limiting component for limiting the clamping block 3. The mounting boss 301 is matched with the mounting groove 201, so that the clamping block 3 can be prevented from rotating. The limiting assembly comprises a limiting pin 5 and a compression spring 6, the mounting plate 2 is provided with a spring groove 202, two ends of the spring groove 202 are provided with mounting through holes 203 matched with the limiting pin 5, the mounting boss 301 is provided with a limiting hole 302 corresponding to the limiting pin 5, the diameter of the compression spring 6 is larger than that of the limiting pin 5, the limiting pin 5 is also fixedly provided with a spring baffle 7, and the diameter of the spring baffle 7 is larger than that of the compression spring 6; the stop pin 5 is installed in the installation through hole 203 inboard, and compression spring 6 is installed in the stop pin 5 outside, and compression spring 6 is located the spring groove 202 inboard, and spring baffle 7 is installed in the one end that the stop pin 5 is close to the mounting groove 201. The end of the limiting pin 5 is fixedly provided with a handle 8, the handle 8 is convenient for moving the limiting pin 5 outwards, and the surface of the handle 8 is provided with anti-skid lines which play a role in skid resistance. During the in-service use, move the spacer pin 5 to the outside, compression spring 6 takes place the compression this moment, select corresponding tight piece 3 of clamp according to the specification of gear, then will press from both sides the installation base 301 of tight piece 3 and align mounting groove 201 and insert, then loosen spacer pin 5, under compression spring 6's effect, the spacer pin 5 is close to the one end of gear and inserts in the spacing hole 302 of installation base 301, spacer pin 5 has played limiting displacement to the tight piece 3 of clamp, it is simple convenient to change the mode that presss from both sides tight piece 3, and the work efficiency is improved. The clamping jaws of the three-jaw chuck are controlled, the three clamping jaws drive the mounting plate 2 and the clamping blocks 3 on the mounting plate 2 to move towards the axis direction of the gear 4 to be machined, and the gaskets 9 on the arc-shaped surfaces of the six clamping blocks 3 clamp the gear 4 to be machined.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a tight frock of gear hole finish turning clamp which characterized in that: including chuck jack catch (1), mounting panel (2), press from both sides tight piece (3), all set firmly mounting panel (2) on the jack catch of chuck jack catch (1), be equipped with a plurality of tight pieces of clamp (3) on mounting panel (2), press from both sides tight piece (3) and mounting panel (2) cooperation installation, it is a plurality of press from both sides tight piece (3) and press from both sides tightly to treat gear (4), the equidistant setting of every two adjacent tight pieces of clamp (3).

2. The gear inner hole finish turning clamping tool according to claim 1, characterized in that: the working surface of the clamping block (3) is an arc-shaped surface matched with the gear (4) to be machined.

3. The gear inner hole finish turning clamping tool according to claim 2, characterized in that: the clamping blocks (3) are of various types, and the arc-shaped surfaces of the clamping blocks (3) of different types are different in diameter, so that the clamping blocks are suitable for gears (4) to be machined with different diameters;

the clamping block (3) is detachably connected with the mounting plate (2).

4. The gear inner hole finish turning clamping tool according to claim 3, characterized in that: the mounting plate (2) is provided with a mounting groove (201), the clamping block (3) is provided with a mounting boss (301) matched with the mounting groove (201), the mounting boss (301) is mounted on the inner side of the mounting groove (201), and the clamping block (3) is detachably connected with the mounting plate (2) through the mounting boss (301);

and the mounting plate (2) is provided with a limiting assembly for limiting the clamping block (3).

5. The gear inner hole finish turning clamping tool according to claim 4, characterized in that: the limiting assembly comprises a limiting pin (5) and a compression spring (6), a spring groove (202) is formed in the mounting plate (2), mounting through holes (203) matched with the limiting pin (5) are formed in two ends of the spring groove (202), a limiting hole (302) corresponding to the limiting pin (5) is formed in the mounting boss (301), the diameter of the compression spring (6) is larger than that of the limiting pin (5), a spring baffle (7) is fixedly arranged on the limiting pin (5), and the diameter of the spring baffle (7) is larger than that of the compression spring (6);

the limiting pin (5) is installed on the inner side of the installation through hole (203), the compression spring (6) is installed on the outer side of the limiting pin (5), the compression spring (6) is located on the inner side of the spring groove (202), and the spring baffle (7) is installed at one end, close to the installation groove (201), of the limiting pin (5).

6. The gear inner hole finish turning clamping tool according to claim 5, characterized in that: the end part of the limiting pin (5) is fixedly provided with a handle (8), and the surface of the handle (8) is provided with anti-skid grains.

7. The gear inner hole finish turning clamping tool according to claim 2, characterized in that: and a gasket (9) is arranged on the arc-shaped surface of the clamping block (3).

8. The gear inner hole finish turning clamping tool according to claim 7, characterized in that: the gasket (9) is a structural member made of polytetrafluoroethylene.