Shaft sleeve turning tool

Abstract

The utility model discloses a shaft sleeve turning tool. The shaft sleeve turning tool comprises a fixing mechanism and a turning mechanism. The fixing mechanism comprises a three-jaw chuck; the turning mechanism comprises an electric push rod, a frame is arranged on one side of the electric push rod, a fixing frame is installed in the frame, the electric push rod is connected with the fixing frame, a first screw is rotatably installed on the fixing frame, two supporting rods are installed on the first screw in a threaded mode, and turning tools are installed on the supporting rods. And a spring is mounted between the two supporting rods. According to the shaft sleeve turning tool, the fixing mechanism and the turning mechanism are arranged, the turning mechanism comprising the electric push rod, the frame, the fixing frame, the first threaded rod, the turning tool and the two supporting rods is arranged, the two supporting rods are tensioned through the spring installed between the two supporting rods, and the situation that the supporting rods shake when moving due to thread gaps is avoided; and the possibility that the turning tool is broken is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to turning technology field especially, relates to a shaft sleeve turning frock. BACKGROUND

[0002] The shaft sleeve is the cylindrical mechanical part that is sleeved on the rotating shaft and is a component part of the sliding bearing, and in general, the shaft sleeve adopts interference fit with the bearing seat and clearance fit with the shaft. When the shaft sleeve is turned, the internal hole is punched first, and then the turning tool is inserted into the hole edge for turning.

[0003] The file with the existing announcement number CN216029700U discloses a shaft sleeve turning frock, which comprises a fixing mechanism and a turning mechanism. The fixing mechanism comprises a rack, a motor and a three-claw chuck. The motor is fixed on the surface of the rack, and the three-claw chuck is fixed on the output end of the motor. The turning mechanism comprises a positioning plate, a fixed frame, a threaded rod, a moving seat, a turning tool and an electric push rod. Two moving seats are respectively threaded on the first outer thread and the second outer thread. The moving seat is slidably attached to the inner wall of the groove of the fixed frame. One end of the turning tool is fixed on the moving seat, and the other end of the turning tool faces the center position of the three-claw chuck. The electric push rod is fixed on the side of the rack close to the fixed frame. The output end of the electric push rod is fixed on the surface of the fixed frame. This shaft sleeve turning frock can adjust the distance of the tool head to turn different hole diameters, and is convenient to use.

[0004] When the frock is used, the turning tool is fixed on the moving seat, and the moving seat is threaded with the threaded rod. Since the threaded connection has a large gap, the turning tool is easily shaken before it contacts the shaft sleeve, which may cause the tool tip to break due to shaking when it first contacts the shaft sleeve.

[0005] Therefore, it is necessary to provide a shaft sleeve turning frock to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a shaft sleeve turning frock which can avoid the disadvantages of threaded gap and reduce the possibility of turning tool breakage.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The bush turning tool includes a fixing mechanism and a turning mechanism, the fixing mechanism includes a three-jaw chuck driven by a motor, the turning mechanism includes an electric push rod, one side of the electric push rod is provided with a frame, a fixed frame is installed in the frame, an output shaft of the electric push rod is connected with the fixed frame, a first screw rod is rotatably installed on the fixed frame, two supporting rods are threadedly installed on the first screw rod, one end of each supporting rod is in contact with the fixed frame, a turning tool is installed on each supporting rod, and springs are installed between the two supporting rods.

[0009] Preferably, the number of springs is two, and the two springs are symmetrically arranged.

[0010] Preferably, a guide groove is formed in the fixed frame, and a guide plate is arranged on one side of each supporting rod and inserted into the guide groove.

[0011] Preferably, a sliding block is installed at the bottom of the fixed frame, and a sliding groove is arranged on the frame and into which the sliding block is inserted.

[0012] Preferably, a stabilizing tube is installed on the frame and axially aligned with the three-jaw chuck.

[0013] Preferably, supporting frames are installed on both sides of the frame, a second screw rod is installed on each supporting frame, clamping blocks are installed at the ends of the second screw rods, and the two clamping blocks clamp and fix the stabilizing tube.

[0014] Compared with the prior art, the bush turning tool has the following beneficial effects:

[0015] (1) The fixing mechanism and the turning mechanism are arranged, the turning mechanism including an electric push rod, a frame, a fixed frame, a first screw rod, a turning tool and two supporting rods, the two supporting rods are pulled tight by the springs installed therebetween, the turning tool is prevented from shaking when moving due to thread gaps, and the possibility of the turning tool breaking down is reduced;

[0016] (2) The two symmetric springs are arranged, which is beneficial to prolonging the service life of the first screw rod and the supporting rods;

[0017] (3) The guide groove and the guide plate are arranged, the supporting rods are slidably connected with the fixed frame, the supporting rods are limited in position, and the turning tool is more stable;

[0018] (4) The sliding block and the sliding groove are arranged, the fixed frame is slidably connected with the frame, and the movement of the fixed frame is more stable;

[0019] (5) The stabilizing tube is installed on the frame, and the quality of processing thin-walled pipe fittings and pipe fittings with a large length-diameter ratio is improved;

[0020] (6) The supporting frames, the clamping blocks and the second screw rods are arranged, and the stabilizing tube can be conveniently installed and dismounted. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of the bushing turning fixture provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows the structural design of the frame in the bushing turning fixture.

[0023] Figure 3 for Figure 1 The diagram shows the installation structure of the support rod in the bushing turning fixture.

[0024] Figure 4 for Figure 1 The diagram shows the structure of the support rod in the bushing turning fixture.

[0025] The corresponding names of the attached figures are: 1-three-jaw chuck, 2-electric push rod, 3-frame, 4-fixed frame, 5-first screw, 6-cutting tool, 7-support rod, 8-spring, 9-guide groove, 10-guide plate, 11-slider, 12-slide groove, 13-stabilizing tube, 14-support frame, 15-clamping block, 16-second screw. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0027] Example 1:

[0028] like Figures 1-4The utility model provides a shaft sleeve turning frock, include: fixed establishment and turning mechanism, wherein fixed establishment includes by motor drive's three jaw chuck 1, turning mechanism includes electric push rod 2, one side of electric push rod 2 is equipped with U shape's frame 3, the sliding installation of frame 3 has fixed frame 4, and the output shaft of electric push rod 2 is connected with fixed frame 4, and first screw rod 5 is rotatably installed on fixed frame 4, two support rods 7 are screw threadedly installed on first screw rod 5, and one end of support rod 7 contacts with fixed frame 4, and two support rods 7 can move along the axial direction of first screw rod 5 because the thread rotation direction is opposite, and turning tool 6 is installed on support rod 7, and two turning tools 6 can select positive installation and also can select reverse installation, and the spring 8 of being stretched is installed between two support rods 7, and under the action of spring 8, two support rods 7 are naturally close to each other, further under the action of the spring 8 of being stretched, support rod 7 is not easy to sway because of thread gap, it is worth mentioning that fixed establishment and turning mechanism are arranged on the same operation table, when using, the shaft sleeve is clamped on three jaw chuck 1, and the motor drives three jaw chuck 1 to rotate, further the shaft sleeve rotates, rotates first screw rod 5, makes support rod 7 transverse outward displacement, further makes spring 8 further stretch, until the tip of turning tool 6 moves to the processing size position, then electric push rod 2 pushes fixed frame 4 to move to the side close to the shaft sleeve, further makes turning tool move to the shaft sleeve, in the moving process, because of the tensioning effect of spring 8, two support rods 7 are tensioned close, avoid the possibility of support rod 7 to sway in the moving because of thread gap, further make turning tool 6 not appear sway in the process of gradually contacting the shaft sleeve, further reduce the possibility of turning tool 6 collapse, turning tool 6 further moves to the shaft sleeve, completes the reaming turning work of the shaft sleeve.

[0029] By setting fixed establishment and turning mechanism, setting turning mechanism including electric push rod 2, frame 3, fixed frame 4, first screw rod 5, turning tool 6 and two support rods 7, utilize the spring 8 of being installed between two support rods 7 and tension two support rods 7, avoid the possibility of support rod 7 to sway when moving because of thread gap, reduce the possibility of turning tool 6 collapse.

[0030] Embodiment 2:

[0031] The number of spring 8 is two, and is located above and below support rod 7 respectively, two spring 8 are symmetrically arranged, so that the stress above and below support rod 7 is consistent, further make the wear of thread uniform, improve the service life of first screw rod 5 and support rod 7.

[0032] By setting two symmetric spring 8, it is favorable to improve the service life of first screw rod 5 and support rod 7.

[0033] Embodiment 3:

[0034] As Figures 3-4As shown, a guide groove 9 is provided on the fixed frame 4, and a guide plate 10 is provided at the tail of the support rod 7. The guide plate 10 is inserted into the guide groove 9 and can slide along the guide groove 9. When in use, when the support rod 7 moves, the guide plate 10 at its tail slides along the guide groove 9 at the same time. Through the guide plate 10, the support rod 7 will not swing up and down, thus making the cutting tool 6 more stable.

[0035] By setting the guide groove 9 and the guide plate 10, the support rod 7 is slidably connected to the fixed frame 4, and the support rod 7 is limited, which makes the cutting tool 6 more stable.

[0036] Example 4:

[0037] like Figures 2-3 As shown, a slider 11 is installed at the bottom of the fixed frame 4, and a groove 12 is provided on the frame 3. The slider 11 is inserted into the groove 12 and slides along the groove 12. In use, the fixed frame 4 is slidably connected to the frame 3 through the slider 11 at the bottom. When the electric push rod 2 pushes the fixed frame 4 to move, the fixed frame 4 slides along the direction of the groove 12.

[0038] By setting slider 11 and slide groove 12, the fixed frame 4 is slidably connected to the frame 3, making the movement of the fixed frame 4 more stable.

[0039] Example 5:

[0040] like Figures 1-2 As shown, a stabilizing tube 13 is installed on the frame 3. The stabilizing tube 13 is axially aligned with the three-jaw chuck 1. The inner diameter of the stabilizing tube 13 is slightly larger than the outer diameter of the workpiece. In use, one end of the tube is fixed to the three-jaw chuck 1, and the other end is inserted into the stabilizing tube 13. When the cutting tool 6 is turning the inner hole of the tube, the outer side of the tube is limited by the stabilizing tube 13, which makes the coaxiality of the two ends of the tube better. Moreover, during processing, it is not easy to deform due to the thin wall or excessive length of the tube, that is, the concentricity of the processed part is better.

[0041] By installing a stabilizing tube 13 on the frame 3, the quality of processing thin-walled pipes and pipes with a large length-to-diameter ratio can be improved.

[0042] Example 6:

[0043] like Figure 2 As shown, support frames 14 are installed on both sides of frame 3. Second screws 16 are installed on the support frames 14, and clamping blocks 15 are installed at the ends of the second screws 16. The clamping blocks 15 are square with V-shaped grooves on their inner sides. The clamping blocks 15 pass through the square holes on frame 3. The two clamping blocks 15 clamp and fix the stabilizing tube 3. When the stabilizing tube 3 is not needed, the second screws 16 are rotated to move the clamping blocks 15 outwards, retracting them into the support frames 4, and then the stabilizing tube 13 can be removed. Similarly, the stabilizing tube 13 can be clamped and fixed by reversing the operation.

[0044] By setting the support frame 14, the clamping block 15 and the second screw 16, the installation and disassembly of the pipe 13 can be facilitated and stabilized.

[0045] Working principle: when in use, the shaft sleeve is clamped on the three-jaw chuck 1, the motor drives the three-jaw chuck 1 to rotate, and then the shaft sleeve rotates, the first screw 5 rotates, the support rod 7 moves outward horizontally, and then the spring 8 is further stretched until the tip of the turning tool 6 moves to the processing size position, then the electric push rod 2 pushes the fixed frame 4 to move to the side close to the shaft sleeve, and then the turning tool moves to the shaft sleeve, in the moving process, due to the tensioning effect of the spring 8, the two support rods 7 are pulled close to avoid the possibility of shaking of the support rod 7 in the moving process due to the thread gap, and then the turning tool 6 will not shake in the process of gradually contacting the shaft sleeve, thereby reducing the possibility of the turning tool 6 breaking down. The turning tool 6 further moves into the shaft sleeve, and the shaft sleeve expansion turning operation is completed. The shaft sleeve inner hole can be turned by reducing the cutting amount and turning multiple times.

Claims

1. A bush turning fixture, characterized by, Include: Fixed mechanism and turning mechanism; The fixed mechanism comprises a three-jaw chuck (1); The turning mechanism comprises an electric push rod (2), one side of the electric push rod (2) is provided with a frame (3), a fixed frame (4) is installed in the frame (3), the electric push rod (2) is connected with the fixed frame (4), a first screw rod (5) is rotatably installed on the fixed frame (4), two supporting rods (7) are threadedly installed on the first screw rod (5), a turning tool (6) is installed on the supporting rod (7), and a spring (8) is installed between the two supporting rods (7).

2. The bushing turning fixture of claim 1, wherein, The number of the spring (8) is two.

3. The bushing turning fixture of claim 1, wherein, A guide groove (9) is formed in the fixed frame (4), and a guide plate (10) is arranged on one side of the supporting rod (7), the guide plate (10) is inserted into the guide groove (9).

4. The bushing turning fixture of claim 1, wherein, A sliding block (11) is installed at the bottom of the fixed frame (4), a sliding groove (12) is arranged on the frame (3), and the sliding block (11) is inserted into the sliding groove (12).

5. The bushing turning fixture of claim 1, wherein, A stabilizing pipe (13) is installed on the frame (3).

6. The bushing turning fixture of claim 1, wherein, Support frames (14) are installed on both sides of the frame (3), a second screw rod (16) is installed on the support frame (14), and a clamping block (15) is installed at the end of the second screw rod (16).

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