CN212705459U

CN212705459U - Auxiliary tool for processing brake drum

Info

Publication number: CN212705459U
Application number: CN202020767379.XU
Authority: CN
Inventors: 孙志鹏; 殷巧玲; 曲静
Original assignee: Shandong Longji Machinery Co ltd
Current assignee: Shandong Longji Machinery Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-03-16
Anticipated expiration: 2030-05-11

Abstract

The utility model relates to a brake drum adds clamping apparatus field, concretely relates to processing brake drum's auxiliary fixtures. Including fixing base, adjusting screw, clamping screw, spring, the fixing base includes adjustment end, exposed core and extends to the mounting hole of exposed core from the adjustment end, adjusting screw sets up in the mounting hole that is close to adjustment end one side, clamping screw sets up in the mounting hole that is close to exposed core one side and can the horizontal slip, the spring sets up between adjusting screw and clamping screw. The utility model discloses an auxiliary fixtures's design makes the suitable clamping power of having added man-hour of the suitable mouth of brake drum, and the mouth atress has reached relative even about making. After the clamping jaws are loosened, the upper and lower stresses of the brake drum are released consistently, the size is consistent, and the cylindricity is ensured.

Description

Auxiliary tool for processing brake drum

Technical Field

The utility model relates to a brake drum adds clamping apparatus field, concretely relates to processing brake drum's auxiliary fixtures.

Background

When the inner hole of the brake drum is finely turned, the outer surface of the brake drum is a blank surface, and the blank surface has a drawing slope, so that the brake drum is not suitable for using a large-area clamping jaw. Therefore, the clamping jaws can only clamp the middle lower part of the workpiece, and the conventional clamping jaws clamp at multiple points (usually 12 points or 18 points) on the same circumference to effectively ensure the central stability of the blank. And the jack catch is mostly general frock for the brake drum clamping that is applicable to multiple model, and clamping position is fixed, and the adjustment range is little, and the atress is only concentrated on a circumference. After processing, because of the influence of casting stress release and clamping force, the inner hole is easily caused to be in a horn mouth shape, namely the cylindricity is unqualified.

Therefore, the utility model discloses an auxiliary fixtures of processing brake drum has solved the unqualified problem of cylindricity that prior art caused to reduce rework and customer complain.

Disclosure of Invention

For solving the not enough of prior art existence, the utility model provides an auxiliary fixtures of processing brake drum.

The technical scheme of the utility model is that:

the utility model provides an auxiliary fixtures of processing brake drum, its characterized in that: including fixing base, adjusting screw, clamping screw, spring, the fixing base includes adjustment end, exposed core and extends to the mounting hole of exposed core from the adjustment end, adjusting screw sets up in the mounting hole that is close to adjustment end one side, clamping screw sets up in the mounting hole that is close to exposed core one side and can the horizontal slip, the spring sets up between adjusting screw and clamping screw.

Further, the adjusting screw rod is arranged in the mounting hole through threads.

Furthermore, the clamping screw is arranged in the mounting hole through a sliding block, and the sliding block can slide left and right in the mounting hole.

Furthermore, one side of the sliding block facing the clamping end is provided with a screw hole.

Furthermore, a limiting plate is arranged on one side, close to the spring, of the sliding block.

Further, the spring is a nitrogen spring.

Furthermore, the inner diameter of one side of the mounting hole close to the adjusting end is larger than that of one side close to the clamping end.

The utility model discloses the beneficial effect who reaches does:

the utility model discloses an auxiliary fixtures's design makes the suitable clamping power of having added man-hour of the suitable mouth of brake drum, and the mouth atress has reached relative even about making. After the clamping jaws are loosened, the upper and lower stresses of the brake drum are released consistently, the size is consistent, and the cylindricity is ensured.

The utility model discloses reduced product and reprocessed rate and rejection rate, the one-time installation need not follow-up adjustment and can reach the purpose to effectual, improve the whole production efficiency of processing line.

Furthermore, the utility model discloses still have advantages such as simple structure is reliable, low price, facilitate promotion.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the usage state of the present invention.

In the figure, 1, adjusting screw; 2. a fixed seat; 2-1, an adjusting end; 2-2, a clamping end; 3. a spring; 4. a slider; 4-1, limiting plates; 5. and clamping the screw rod.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1-2, the utility model provides an auxiliary fixtures of processing brake drum, its characterized in that: the clamping device comprises a fixed seat 2, an adjusting screw rod 1, a sliding block 4, a clamping screw rod 5 and a spring 3, wherein the fixed seat 2 comprises an adjusting end 2-1, a clamping end 2-2 and a mounting hole extending from the adjusting end 2-1 to the clamping end 2-2, and the adjusting screw rod 1 is arranged in the mounting hole close to one side of the adjusting end 2-1 through threads. The sliding block 4 is arranged in the mounting hole close to one side of the clamping end 2-2, and the sliding block 4 can slide left and right in the mounting hole. A screw hole is formed in one side, facing the clamping end 2-2, of the sliding block 4, and the clamping screw rod 5 is arranged in the screw hole. The other side of the sliding block 4 is provided with a limiting plate 4-1, the spring 3 is arranged between the adjusting screw rod 1 and the clamping screw rod 5, one side of the spring 3 is connected with the limiting plate 4-1, and the other side of the spring is connected with the adjusting screw rod 1. For better results, the spring 3 may be a nitrogen spring 3.

Further, in order to prevent the clamping screw 5 from being ejected by the spring 3, the inner diameter of the mounting hole on the side close to the adjustment end 2-1 is larger than the inner diameter of the mounting hole on the side close to the holding end 2-2. In addition, the diameter of the limiting plate 4-1 is the same as the inner diameter of the mounting hole on the side close to the adjusting end 2-1.

Specifically, the utility model discloses a bolt or welded mode are fixed on the jack catch. When a workpiece is clamped, the clamping screw 5 is in contact with the workpiece and stressed, and the clamping screw 5 retracts. In order to ensure that the auxiliary tool and the clamping jaw are stressed simultaneously, a user can rotate the adjusting screw rod 1 clockwise to enable the spring 3 to be compressed slowly, and at the moment, the clamping screw rod 5 can extend out of the clamping workpiece gradually under the action of the spring 3. Along with the clockwise rotation of the adjusting screw rod 1, the clamping force is increased, otherwise, the clamping force is decreased until the upper part and the lower part of the workpiece are adjusted to be under the same stress.

The utility model discloses an increase an extra power on the upper portion of work piece, guaranteed that the work piece is suitable for reading the atress relatively even, loosen behind the jack catch in, stress release is unanimous about the brake drum, and the size is unanimous, and the cylindricity has obtained the assurance.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides an auxiliary fixtures of processing brake drum which characterized in that: including fixing base, adjusting screw, clamping screw, spring, the fixing base includes adjustment end, exposed core and extends to the mounting hole of exposed core from the adjustment end, adjusting screw sets up in the mounting hole that is close to adjustment end one side, clamping screw sets up in the mounting hole that is close to exposed core one side and can the horizontal slip, the spring sets up between adjusting screw and clamping screw.

2. The auxiliary tool for machining the brake drum according to claim 1, wherein the auxiliary tool comprises: the adjusting screw is arranged in the mounting hole through threads.

3. The auxiliary tool for machining the brake drum according to claim 1, wherein the auxiliary tool comprises: the clamping screw is arranged in the mounting hole through a sliding block, and the sliding block can slide left and right in the mounting hole.

4. The auxiliary tool for machining the brake drum as claimed in claim 3, wherein the auxiliary tool comprises: and a screw hole is formed in one side of the sliding block, which faces the clamping end.

5. The auxiliary tool for machining the brake drum as claimed in claim 4, wherein the auxiliary tool comprises: and a limiting plate is arranged on one side of the sliding block close to the spring.

6. The auxiliary tool for machining the brake drum according to claim 1, wherein the auxiliary tool comprises: the spring is a nitrogen spring.

7. The auxiliary tool for machining the brake drum according to any one of claims 1 to 6, characterized in that: the inner diameter of one side of the mounting hole, which is close to the adjusting end, is larger than the inner diameter of one side of the mounting hole, which is close to the clamping end.