CN216681835U

CN216681835U - Axial positioning device for overhauling gear box

Info

Publication number: CN216681835U
Application number: CN202123009903.0U
Authority: CN
Inventors: 王泳; 李光耀
Original assignee: Loteem Beijing Rail Transit Technology Co Ltd
Current assignee: Loteem Beijing Rail Transit Technology Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-06-07
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses an axial positioning device for gear box overhaul, which comprises a bowtie support (2), a clamping rod (3), a locking nut (4) and a positioning sleeve (5), wherein the bowtie support (2) is fixedly arranged on the side surface of a support arm (1) of a turnover machine, an arc-shaped hole (21) is formed in the bowtie support, one end of the positioning sleeve (5) points to the end surface of a workpiece, the other end of the positioning sleeve penetrates through the arc-shaped hole (21) and extends out of the bowtie support (2), the locking nut (4) is screwed on the extending end and used for locking the positioning sleeve (5), a through hole is formed in the center of the positioning sleeve (5), the clamping rod (3) is embedded into the through hole for connection, and the problems that the gear box workpiece is easy to axially shift in the screwing operation and the positioning workpiece needs to be manually marked are solved.

Description

Axial positioning device for overhauling of gear box

Technical Field

The utility model relates to the technical field of maintenance of motor train unit gear boxes, in particular to an axial positioning device for maintenance of a gear box.

Background

At present, in a repair workshop of a split type gear box of a motor train unit in a motor train unit section and a host machine factory, when the box assembling operation of the gear box is carried out, a turnover machine is needed, a robot is used for screwing bolts of a bearing seat of the turnover machine, an electric wrench is added, manual feeding is adopted, due to the fact that an axial positioning tool for manual feeding is lacked on a support arm of the turnover machine, workers are often needed to realize axial positioning of the gear box and an axle through line drawing on the inner side surface of the support arm and manual alignment, alignment accuracy cannot be guaranteed, manual operation is complicated, when a gear box shaft workpiece is placed on an arc surface of the support arm of the turnover machine, a clamping mechanism is lacked, when the bolt is screwed down by the robot, axial force along the axial direction of the axle is generated by the bolt by the robot, the axle slides along the axial line on the support arm of the turnover machine along the axle due to the force, and coordinate point data which are already made by the robot is lost, the workpiece is shifted by 2-3 cm, the position change of the workpiece exceeds the correction range of the vision recognition camera, the robot cannot normally work, and the data coordinate point needs to be readjusted.

The prior art has the following disadvantages: (1) the special tool mechanism is used for positioning, so that the occupied space is large, and the positioning efficiency is low; (2) the robot is difficult to guarantee not to move in the bolt tightening process, the coordinate data of the robot is unstable, and the operation precision of the robot for tightening the bolt is reduced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects or the improvement requirements of the prior art, the utility model provides an axial positioning device for overhauling a gear box, which comprises a support arm of a turnover machine, and further comprises a bowknot support, a clamping rod, a locking nut and a positioning sleeve, wherein the bowknot support is fixedly arranged on the side surface of the support arm of the turnover machine, an arc-shaped hole is formed in the bowknot support, one end of the positioning sleeve points to the end surface of a workpiece, the other end of the positioning sleeve penetrates through the arc-shaped hole and extends out of the outer side of the bowknot support, the locking nut is screwed on the extending end and is used for locking the positioning sleeve, a through hole is formed in the center of the positioning sleeve, and the clamping rod is embedded into the through hole for connection, so that the problems that the workpiece of the gear box is easy to axially shift in the screwing operation and the workpiece needs to be manually marked and positioned are solved.

In order to achieve the above object, the present invention provides an axial positioning device for gear box maintenance, comprising:

bowknot support, clamping rod, lock nut and position sleeve, bowknot support fixed mounting in upset machine support arm side is equipped with the arc hole on it, the directional work piece terminal surface of position sleeve one end, the other end pass the arc hole to stretch out in the bowknot support outside, lock nut spiro union is served in this stretching out, is used for the locking the position sleeve, the position sleeve center is equipped with the through-hole, this through-hole of clamping rod embedding is connected.

The workpiece positioning device comprises a positioning sleeve, a workpiece, a protection pad and a protection pad threaded hole, wherein the protection pad is fixedly arranged at the end part of the positioning sleeve, the protection pad is connected with the protection pad threaded hole through a screw, and the protection pad is fixedly arranged at the end part of the positioning sleeve.

Furthermore, the protection pad includes central through hole and screw counter bore, central through hole with the through-hole at position sleeve center corresponds, supplies the clamping bar passes, the screw counter bore is located the protection pad is close to one side of work piece for install with the set screw of protection pad screw hole connection.

Furthermore, the bowknot support comprises a fixing hole, and the fixing hole is used for fixing the bowknot support on the support arm of the turnover machine in a threaded manner.

Furthermore, the locating sleeve comprises a wrench locking spigot, the wrench locking spigot is perpendicular to the axis of the locating sleeve, and a wrench is inserted for applying force when the locating sleeve is screwed down.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

1. the utility model provides an axial positioning device for overhauling a gear box, which comprises a bowknot bracket, a clamping rod, a locking nut, a positioning sleeve and a protection pad, wherein the bowknot bracket is fixedly arranged on the side surface of a support arm of a tilter, one end of the positioning sleeve points to the end surface of a workpiece of the gear box, the other end of the positioning sleeve penetrates through the bowknot bracket, and is connected with the screw thread, the clamping rod passes through the through hole embedded and fixed in the center of the positioning sleeve, a bolt is fixed with a protective pad made of non-metal material at one end of the positioning sleeve close to the workpiece, the protective pad is in direct contact with the workpiece and is used for compressing the workpiece axially, a locking nut is screwed at one end of the positioning sleeve exposed from the outer side of the bowknot bracket, the positioning device is used for fixing the positioning sleeve and the bowknot support, and solves the problems that a gear box workpiece is easy to axially shift in screwing operation and needs to be manually marked to position the workpiece by arranging the positioning device on the support arms of the tilter on two sides of the workpiece.

2. The utility model provides an axial positioning device for overhauling a gear box, which comprises a bowknot support, a locking nut, a clamping rod and a positioning sleeve, wherein an arc-shaped hole is formed in the bowknot support, the hole is arc-shaped, in order to adapt to the positions of a plurality of threaded holes in the end part of a workpiece, when positioning and fixing are carried out, the clamping rod is adjusted to be corresponding to the threaded holes in the end part of the workpiece through sliding the positioning sleeve at the positions of the arc-shaped holes, then the clamping rod can be fixed by screwing the locking nut on the positioning sleeve, and the condition that the positions of the threaded holes in the end part are not fixed after the workpiece falls on a support arm of a turnover machine is adapted.

Drawings

FIG. 1 is a schematic structural view of an axial positioning device and a workpiece for gearbox maintenance according to an embodiment of the present invention;

FIG. 2 is a front view of a gearbox service axial positioning device and workpiece according to an embodiment of the utility model;

FIG. 3 is a cross-sectional view A-A of a gearbox service axial positioning device and workpiece according to an embodiment of the present invention;

FIG. 4 is a partial enlarged view B of an axial positioning device for gearbox maintenance according to an embodiment of the present invention.

In all the figures, the same reference numerals denote the same features, in particular: 1-a support arm of a turnover machine, 2-a bowknot bracket, 3-a clamping rod, 4-a locking nut, 5-a positioning sleeve, 6-a protection pad, 11-an arc supporting part, 21-an arc hole, 22-a fixing hole and 51-a wrench locking spigot.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-4, the embodiment provides an axial positioning device for gear box maintenance, which includes a support arm 1 of a turnover machine, a bow tie support 2, a clamping rod 3, a lock nut 4, a positioning sleeve 5 and a protection pad 6, wherein the support arm 1 is located at two sides of a gear box, the end part of the support arm is provided with an arc support part 11, the part is in direct contact with workpieces at two sides of the gear box to support, the workpieces at two sides of a gear box of a motor train unit are cylindrical, the end part of the support arm is provided with a plurality of threaded holes, the bow tie support 2 is fixed at the outer side of the arc support part 11 and is opposite to the end surface of the workpieces, the support is in a sheet structure, the occupied space is small, the protection pad 6 is arranged at one end of the positioning sleeve 5 close to the workpieces, the protection pad 6 is in direct contact with the end surface of the workpieces to clamp the workpieces axially, the other end of the positioning sleeve 5 passes through the bow tie support 2 and is in threaded connection with the lock nut 4, the clamping rod 3 penetrates through and is embedded into the positioning sleeve 5, preferably, the clamping rod 3 is made of a threaded rod, one end of the clamping rod points to the end face of a workpiece, the other end of the clamping rod is exposed outside the locking nut 4, the clamping rod 3 can be rotated to be screwed in or out of the bow-tie support 2 together with the positioning sleeve 5, when the protection pad 6 on the inner side contacts the workpiece, the positioning sleeve 5 is continuously screwed so that the protection pad 6 compresses the end of the workpiece, then the locking nut 4 is screwed, the positioning sleeve 5 and the pressing rod 3 are locked, the positioning device and the workpiece are prevented from being loosened when the gearbox is overhauled, and the problems that the gearbox workpiece is easy to axially shift in the screwing operation and the workpiece needs to be manually marked and positioned are solved.

Further, as shown in fig. 1-4, the bow tie support 2 includes an arc hole 21 and a fixing hole 22, wherein the fixing hole 22 is disposed at the contact surface of the bow tie support 2 and the tilter support arm 1, the tilter support arm 1 is provided with a corresponding fixing threaded hole, the bow tie support 2 is fixed on the tilter support arm 1 by inserting a screw into the fixing hole 22 and screwing the screw into the threaded hole, further, the arc hole 21 is a uniform arc strip hole, since the end of the workpiece is generally provided with 4 threaded holes, after the workpiece falls on the tilter support arm 1, the position of the threaded hole at the end is uncertain, the positions of the positioning sleeve 5 and the clamping rod 3 can be adjusted by disposing the arc hole 21 to position and clamp the workpiece according to specific conditions, preferably, the arc range angle of the arc hole 21 is greater than 90 °, thus ensuring that no matter where the threaded hole is located, the positions of the clamping rod 3 and the positioning sleeve 5 in the arc-shaped hole 21 can be adjusted to correspond to the threaded hole, so that the operation is convenient.

Further, as shown in fig. 2-3, the positioning sleeve 5 is formed by turning 45 steel, and is hollow along the axis for the clamping rod 3 to pass through, and one end of the positioning sleeve, which is close to the workpiece, is further provided with more than two protection pad threaded holes for fixing the protection pad 6, preferably, the protection pad 6 is processed by non-metallic materials such as nylon, PP, or PE, so as to prevent the end face of the workpiece from being damaged, and enhance the stabilizing effect, and a through hole is formed in the middle of the protection pad 6 and corresponds to the center of the positioning sleeve 5, and a screw countersunk hole equal to the reference circle of the protection pad threaded hole on the positioning sleeve 5 is further formed in the middle of the protection pad 6, and is used for fixedly mounting the protection pad 6 at the end of the positioning sleeve 5, and simultaneously, a screw nut is embedded in the countersunk hole, and the end of the protection pad 6 is kept flat.

Further, as shown in fig. 2-4, the positioning sleeve 5 is located on the section between the workpiece and the bow tie support 2, and a plurality of wrench locking spigots 51 are arranged along the direction perpendicular to the axial direction, and are used for using the force application position inserted by a wrench when the positioning sleeve 5 is screwed, so that the narrow space between the workpiece and the support arm 1 of the tilter is reasonably utilized.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a gear box overhauls axial positioning device which characterized in that, includes upset machine support arm (1), still includes:

bowknot support (2), press from both sides tight pole (3), lock nut (4) and position sleeve (5), bowknot support (2) fixed mounting in upset machine support arm (1) side is equipped with arc hole (21) on it, the directional work piece terminal surface of position sleeve (5) one end, the other end pass arc hole (21) to bow knot support (2) outside is stretched out, lock nut (4) spiro union is served in this stretching out, is used for the locking position sleeve (5), position sleeve (5) center is equipped with the through-hole, press from both sides tight pole (3) and imbed this through-hole and connect.

2. The axial positioning device for gear box maintenance according to claim 1, characterized by comprising a protection pad (6) and a protection pad threaded hole, wherein the protection pad threaded hole is formed in the end face, pointing to the workpiece, of the positioning sleeve (5), and the protection pad (6) is connected with the protection pad threaded hole through a screw and fixedly mounted at the end of the positioning sleeve (5).

3. The gearbox maintenance axial positioning device of claim 2, wherein the protection pad (6) comprises a central through hole and a screw countersunk hole, the central through hole corresponds to the through hole in the center of the positioning sleeve (5) for the clamping rod (3) to pass through, and the screw countersunk hole is formed in one side, close to the workpiece, of the protection pad (6) and used for installing a fixing screw connected with the threaded hole of the protection pad.

4. Gearbox servicing axial positioning device according to claim 1, characterized in that the bow tie support (2) comprises fixing holes (22), said fixing holes (22) being used for screwing the bow tie support (2) to the tilter arm (1).

5. Gearbox overhaul axial positioning device according to claim 1 or 2, characterized in that the positioning sleeve (5) comprises a wrench locking spigot (51), the wrench locking spigot (51) being arranged perpendicular to the axis of the positioning sleeve (5) for a wrench to insert and apply force when screwing the positioning sleeve (5).