CN110039466B

CN110039466B - Clamp for gear box

Info

Publication number: CN110039466B
Application number: CN201910433239.0A
Authority: CN
Inventors: 盖立武; 王明亮; 王旭
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2021-07-06
Anticipated expiration: 2039-05-23
Also published as: CN110039466A

Abstract

The invention discloses a fixture of a gear box, which comprises a first clamping mechanism and a second clamping mechanism; the first clamping mechanism comprises a positioning plate fixed on the base, a screw rod and a rotary threaded sleeve in threaded connection with the outer side of the screw rod; one end of the screw rod close to the second clamping mechanism is provided with a wedge-shaped positioning block; the positioning plate is provided with a positioning hole; the rotary threaded sleeve can be rotatably inserted into the positioning hole, and a positioning ring is fixed at one end close to the second clamping mechanism; the second clamping mechanism comprises two rotating shaft upright columns and a V-shaped positioning block which is rotatably sleeved on the rotating shaft upright columns. Aiming at the design of a gear box with supporting upright posts and hollow grooves respectively arranged at the two opposite ends of the side wall, the gear box is clamped through a wedge-shaped positioning block screwed in by threads and a V-shaped positioning block arranged oppositely; for clamping of gear boxes of the same type, alignment is only needed during first-time clamping, alignment and positioning are not needed during replacement of parts later, and the clamping is convenient and rapid, time-saving and labor-saving, and is suitable for mass production and use.

Description

Clamp for gear box

Technical Field

The invention relates to the field of tool fixtures, in particular to a fixture for a gear box.

Background

The traditional gear box fixing method adopts the pressing plate clamping as shown in fig. 9, a plurality of pressing plates need to be respectively disassembled and assembled when the gear box fixing method is used, and the gear box fixing method does not have the horizontal alignment function, so that the gear box fixing method needs to be aligned and positioned again every time of clamping, and is inconvenient to use and low in working efficiency.

Disclosure of Invention

In order to solve the problems, the invention provides the fixture for the gear box, for clamping the gear boxes of the same type, only the alignment is needed during the first clamping, and the alignment and the positioning are not needed during the subsequent part replacement, and the fixture is convenient and rapid to clamp, time-saving and labor-saving, and is suitable for mass production and use.

The technical scheme is as follows: a fixture for a gear box is characterized in that two opposite ends of the side wall of the gear box are respectively provided with a supporting upright post and a hollow groove; the clamp comprises a base, a first clamping mechanism and a second clamping mechanism, wherein the first clamping mechanism and the second clamping mechanism are oppositely arranged on the base;

the first clamping mechanism comprises a positioning plate fixed on the base, a screw rod facing the second clamping mechanism and a rotary threaded sleeve in threaded connection with the outer side of the screw rod; when the rotary threaded sleeve rotates, the screw rod is driven to linearly move along the screw rod through the threads; one end of the screw rod, which is close to the second clamping mechanism, is provided with a wedge-shaped positioning block; when the gear box is clamped, the wedge-shaped positioning block is wedged into the hollow groove; the positioning plate is provided with a positioning hole; the rotary threaded sleeve can be rotatably inserted into the positioning hole, and a positioning ring is fixed on the outer circumference of one end, close to the second clamping mechanism, of the rotary threaded sleeve; the outer diameter of the positioning ring is larger than the diameter of the positioning hole;

the second clamping mechanism comprises two rotating shaft upright columns vertically fixed on the base and a V-shaped positioning block rotatably sleeved on the rotating shaft upright columns; the rotating shaft upright columns are symmetrically arranged on two sides of the straight line where the screw rods are located.

Further, the rotary screw sleeve is arranged obliquely downward toward a side close to the second clamping mechanism.

Further, the wedge-shaped positioning block is in a regular trapezoid shape.

Has the advantages that: aiming at the design of a gear box with supporting upright posts and hollow grooves respectively arranged at the two opposite ends of the side wall, the gear box is clamped through a wedge-shaped positioning block screwed in by threads and a V-shaped positioning block arranged oppositely; for clamping of gear boxes of the same type, alignment is only needed during first-time clamping, alignment and positioning are not needed during replacement of parts later, and the clamping is convenient and rapid, time-saving and labor-saving, and is suitable for mass production and use.

Drawings

FIG. 1 is a schematic view of the present invention in a configuration for clamping a gearbox;

FIG. 2 is a schematic view of the present invention in a disengaged gearbox configuration;

FIG. 3 is a side view of the present invention;

FIG. 4 is an assembled perspective view of the rotating threaded bushing and retaining plate of the present invention;

FIG. 5 is a schematic view of the construction of the gearbox of the present invention;

FIG. 6 is a schematic view of a rotary threaded sleeve of the present invention;

FIG. 7 is a schematic structural diagram of a V-shaped positioning block of the present invention;

FIG. 8 is a schematic view of the screw of the present invention;

FIG. 9 is a schematic diagram of a prior art gearbox clamp configuration.

Detailed Description

The clamp of the gear box is particularly suitable for the gear box shown in figure 5, and three support columns are symmetrically arranged on the side wall of the gear box along the center, so that each support column is opposite to a hollow groove between the other two support columns.

As shown in fig. 1 to 3, the clamp includes a base 1 and a first clamping mechanism and a second clamping mechanism oppositely disposed on the base 1.

The first clamping mechanism comprises a positioning plate 2 fixed on the base 1, a screw rod 3 facing the second clamping mechanism and a rotary threaded sleeve 4 which is connected to the outer side of the screw rod 3 in a threaded manner and is shown in figure 6; when the rotary threaded sleeve 4 rotates, the screw rod 3 is driven to linearly move along the screw rod 3 through threads. The rotary threaded sleeve 4 is arranged obliquely downward toward the side close to the second clamping mechanism.

As shown in fig. 8, a wedge-shaped positioning block 5 is disposed at one end of the screw rod 3 close to the second clamping mechanism, wherein the wedge-shaped positioning block 5 is preferably in a regular trapezoid shape. When the gear box is clamped, the wedge-shaped positioning block 5 is wedged into the hollow groove.

As shown in fig. 4, the positioning plate 2 is provided with a positioning hole; the rotary threaded sleeve 4 can be rotatably inserted into the positioning hole, and a positioning ring 6 is fixed on the outer circumference of one end, close to the second clamping mechanism, of the rotary threaded sleeve 4; the outer diameter of the positioning ring 6 is larger than the diameter of the positioning hole.

The second clamping mechanism comprises two rotating shaft upright posts 7 vertically fixed on the base 1 and a V-shaped positioning block 8 which is rotatably sleeved on the rotating shaft upright posts 7 and is shown in figure 7; the rotating shaft upright posts 7 are symmetrically arranged on two sides of the straight line where the screw rods 3 are located.

During clamping, the gear box is placed on the base 1, and a supporting upright post pushes the gear box to move towards the second clamping mechanism by hand; and rotating the two V-shaped positioning blocks 8 to ensure that the V-shaped openings of the two V-shaped positioning blocks 8 are respectively butted against the two sides of the supporting upright post of the gear box, so as to finish primary positioning.

Then the rotary threaded sleeve 4 is rotated to enable the screw rod 3 to move towards the direction of the gear box until the wedge-shaped positioning block 5 is wedged into the hollow groove and is positioned and clamped. The screw 3 is now subjected to a reaction force towards the first clamping mechanism. Because the rotary threaded sleeve 4 can be rotatably inserted into the positioning hole of the positioning plate 2, the screw rod 3 is subjected to a reaction force towards the first clamping mechanism, so that the positioning ring 6 is tightly attached and fixed to the end surface of the inner side of the positioning plate 2, and the screw rod 3 is firmly fixed.

Because the rotary threaded sleeve 4 is obliquely and downwards arranged towards one side close to the second clamping mechanism, when the gear box is clamped, the wedge-shaped positioning block 5 has a downward clamping force on the gear box, and the gear box is prevented from tilting. Therefore, the verticality of the gear box after clamping can be conveniently ensured.

Claims

1. A clamp for a gear box, the opposite ends of the side wall of the gear box are respectively provided with support columns and hollow grooves, characterized in that: the clamp comprises a base (1) and is relatively arranged on the base (1) The first clamping mechanism and the second clamping mechanism;

The first clamping mechanism includes a positioning plate (2) fixed on the base (1), a screw (3) facing the second clamping mechanism, and a rotating screw sleeve (4) threadedly connected to the outside of the screw (3); The rotating threaded sleeve (4) is arranged inclined downward toward the side close to the second clamping mechanism; when the rotating threaded sleeve (4) rotates, the screw (3) is driven by the thread to move along the straight line where the screw (3) is located; A wedge-shaped positioning block (5) is provided at one end of the screw rod (3) close to the second clamping mechanism; when the gear box is clamped, the wedge-shaped positioning block (5) is wedged into the hollow groove; A positioning hole is provided; the rotating threaded sleeve (4) can be rotatably inserted in the positioning hole, and a positioning ring (6) is fixed on the outer circumference of one end of the rotating threaded sleeve (4) close to the second clamping mechanism; The outer diameter of the positioning ring (6) is larger than the diameter of the positioning hole;

The second clamping mechanism includes two rotating shaft columns (7) vertically fixed on the base (1) and a V-shaped positioning block (8) rotatably sleeved on the rotating shaft column (7); the rotating shaft column ( 7) Symmetrically arranged on both sides of the straight line where the screw (3) is located.

2 . The gear box fixture according to claim 1 , wherein the wedge-shaped positioning block ( 5 ) is in the shape of a regular trapezoid. 3 .