CN216096813U

CN216096813U - Gear machining clamp

Info

Publication number: CN216096813U
Application number: CN202022448007.3U
Authority: CN
Inventors: 王万寿
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2022-03-22
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a gear machining clamp, which comprises a shoulder nut, a bowl-shaped gland, an outer taper sleeve, a spring, a clamp body, a sliding block, a circular ring, a base and the like, and is characterized in that: six rectangular grooves are uniformly machined in an excircle ring of a clamp body of the gear machining clamp, the six rectangular grooves and the ring are installed to form rectangular holes, sliding blocks are arranged in the rectangular holes, and are in clearance-free fit with a machined gear through outward movement of the sliding blocks, so that the precision of machining the gear is improved, and the clamp body is matched with a shoulder nut, an outer taper sleeve, a ring, a spring and a sliding block. The utility model has the beneficial effects that: the precision of the processed gear is improved, the speed and the efficiency can be improved when the processed gear is assembled and disassembled, and the phenomena of clamping and the like are avoided. Can adapt to the larger fluctuation of the size of the inner hole of the gear to be processed.

Description

Gear machining clamp

Technical Field

The utility model relates to a structure improvement of a gear machining clamp, and belongs to the field of machining.

Background

For the common gear machining anchor clamps of machining mill, this anchor clamps structure is comparatively simple, but the hole of gear and the specific excircle of anchor clamps are clearance fit, and the machining precision of gear can be guaranteed more to the clearance is littleer in reality. However, the smaller the gap, the higher the machining accuracy requirement for the inner hole of the gear and the outer circle of the fixture, and the higher the machining cost, and the higher the precision of the machine tool, the measuring tool, and the checking tool are required. The smaller the clearance, the slower the assembly and disassembly, the need of elaborate clamping, sometimes when assembling and disassembling the gear, easy to be clamped, the phenomenon that the gear can not be assembled and disassembled for a long time, the labor and the time are wasted. The size of the excircle of the clamp (the matching part of the excircle and the inner hole of the machined gear) is fixed, and the clamp is not suitable for large fluctuation of the size of the inner hole of the machined gear.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gear machining anchor clamps, anchor clamps are including taking shoulder nut one, take two, bowl-shaped gland, outer taper sleeve, ring, anchor clamps body and spring of shoulder nut, still include slider and anchor clamps base, evenly process out six rectangular channels on the excircle ring of the anchor clamps body of gear machining anchor clamps, rectangular channel and ring installation form the rectangular hole, and the rectangular hole communicates with each other with by processing the gear hole, and the rectangular hole communicates with each other with outer taper sleeve, is equipped with the slider in the rectangular hole, and the slider reciprocates through outer taper sleeve and makes the one end of slider can with by processing the contact of gear hole and separately, the conical surface contact of the outer taper sleeve other end and outer taper sleeve.

The lower part of the outer taper sleeve is contacted with the spring.

The outer taper sleeve drives the sliding block to slide inwards and outwards through the up-and-down movement of the shoulder nut II, and the outer taper sleeve and the machined gear form clearance fit.

The clamp comprises a clamp body, a first nut with a shoulder, a second nut with a shoulder, a bowl-shaped gland, an outer taper sleeve, a circular ring, a spring and a sliding block.

The utility model has the beneficial effects that: the precision of the processed gear is improved, the speed and the efficiency can be improved when the processed gear is assembled and disassembled, and the phenomena of clamping and the like are avoided. Can adapt to the larger fluctuation of the size of the inner hole of the gear to be processed.

Drawings

The utility model is further described with reference to the following figures and detailed description.

FIG. 1 is a schematic sectional view of an original gear machining fixture;

FIG. 2 is a schematic cross-sectional view of a modified gear machining fixture;

FIG. 3 is a part cross-sectional view of the clamp body;

FIG. 4 is a schematic view of the structure of section C;

FIG. 5 is a schematic view of a clamp assembly;

fig. 6 is a schematic structural view of the cross-sectional view a.

The clamp comprises a shoulder nut I1, a shoulder nut II 2, a bowl-shaped gland 3, an outer taper sleeve 5, a circular ring 6, a clamp body 7, a spring 8, a sliding block 9 and a clamp base 10.

Detailed Description

Six rectangular grooves are uniformly processed on a milling machine or a machining center machine tool in the circumferential direction of the excircle ring of the fixture body 7, and six internal thread holes (for mounting with the excircle ring 6) are processed in the circumferential direction and staggered by 30 degrees from the central line of the rectangular grooves.

Six holes are uniformly drilled on the circular ring 6, a certain grinding amount is left on the excircle part, and two end faces are ground. After the clamp body 7 is machined, the ring 6 is fixed on the clamp body 7 through bolts, then the excircle A (including the excircle part of the ring 6) and the excircle B of the clamp body 7 shown in figure 3 are ground on a universal tool grinding machine, the coaxiality of the excircle A is guaranteed to be within 0.01mm, and the gap between the excircle A (including the excircle part of the ring 6) and the inner hole of the machined gear is guaranteed to be 3-5 times of the minimum gap. The minimum clearance is related to the size of the gear being machined. The outer circumferential part of the ring 6 is chamfered or guided to facilitate centering of the gear.

The inner hole of the outer taper sleeve and the excircle B of the clamp body are matched and ground, and the minimum clearance is ensured. The minimum clearance is related to the size of an excircle, and an outer conical surface is ground on a grinding machine with the taper of 1: 1.

The outer taper sleeve 5 drives the sliding block 9 to slide inwards and outwards through the up-and-down movement of the shoulder nut II 2, and the outer taper sleeve 5 and the gear to be machined form clearance fit.

The slider is formed by the even cutting of hole for the ring of taper hole, and the excircle of this ring is upwards made chamfer or direction so that the installation gear before the cutting. The inner conical surface of the ring and the outer conical surface of the outer taper sleeve are matched and ground to ensure that the contact area is more than 80%, after the matching and grinding are completed, the ring is arranged on the outer taper sleeve, and after the outer taper sleeve is arranged and aligned on a grinding machine, the excircle of the ring is ground on the grinding machine. The diameter of the excircle of the circular ring is the same as the size of the inner hole of the gear to be processed, so as to ensure surface contact. And finally, uniformly cutting the circular ring on a linear cutting machine or a milling machine, and grinding the width dimension and the height dimension of the six sliding blocks on a plane grinding machine respectively and simultaneously after removing burrs and fins, so as to ensure that the fit clearance with the rectangular hole of the clamp body is 0.03 mm.

Claims

1. The utility model provides a gear machining anchor clamps, anchor clamps include shoulder nut one (1), two (2) of shoulder nut, bowl-shaped gland (3), outer taper sleeve (5), ring (6), anchor clamps body (7) and spring (8), its characterized in that: still include slider (9) and anchor clamps base (10), the downside of taking shoulder nut (1) is provided with calathiform gland (3), evenly process out six rectangular channels on the excircle ring of the anchor clamps body (7) of gear machining anchor clamps, rectangular channel and ring (6) installation form the rectangular hole, and the rectangular hole communicates with each other with the gear hole of being processed, and the rectangular hole communicates with each other with outer taper sleeve (5), is equipped with slider (9) in the rectangular hole, and slider (9) reciprocate through outer taper sleeve (5) and make the one end of slider (9) can with be processed the contact of gear hole and separately, the conical surface contact of outer taper sleeve (5) other end and outer taper sleeve.

2. The gear machining jig according to claim 1, characterized in that: the lower part of the outer taper sleeve (5) is contacted with the spring (8).

3. The gear machining jig according to claim 1, characterized in that: the outer taper sleeve (5) drives the sliding block (9) to slide inwards and outwards through the up-and-down movement of the second nut (2) with the shoulder, and the outer taper sleeve (5) and the gear to be processed form clearance fit.

4. The gear machining jig according to claim 1, characterized in that: the clamp comprises a clamp body (7), and is characterized in that a first shoulder nut (1), a second shoulder nut (2), a bowl-shaped gland (3), an outer taper sleeve (5), a circular ring (6), a spring (8) and a sliding block (9) are matched with the clamp body (7).