CN212705631U

CN212705631U - Fixing tool for machining shaft hole of differential box

Info

Publication number: CN212705631U
Application number: CN202021638748.1U
Authority: CN
Inventors: 徐波; 韩磊; 张圣坤; 李泉才; 尹道行
Original assignee: Jiangsu Jujie Electromechanical Co ltd
Current assignee: Jiangsu Jujie Electromechanical Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-16
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a fixing tool for processing shaft holes of differential box bodies, which comprises a base, wherein the upper surface of the base is provided with a rotating shaft matched with a positioning hole and a plurality of pressing plates which are arranged around the rotating shaft and used for pressing the differential box bodies, and one side of the upper surface of the base is provided with a tightly-resisting fixing shaft which is vertically arranged; a plurality of evenly distributed abutting devices are slidably mounted in the rotating shaft along the radial direction of the rotating shaft, and one end, extending out of the rotating shaft, of each abutting device abuts against the side wall of the positioning hole. The utility model discloses conveniently fix a position the second shaft hole, avoid processing at every turn and all carry out tool setting work, save time, improve work efficiency; the utility model discloses can fix a position the primary shaft hole, need not the tool setting.

Description

Fixing tool for machining shaft hole of differential box

Technical Field

The utility model belongs to the technical field of fixed frock, concretely relates to shaft hole processing of differential box is with fixed frock.

Background

Milling machines refer to machines that use milling cutters to machine various surfaces on a workpiece, usually the rotation of the milling cutter is the main motion, the movement of the table or milling cutter is the feed motion, because the machining efficiency is higher than that of planing machines, they are widely used in the machine manufacturing and repairing departments.

The differential case is an irregular product in the milling process, as shown in fig. 1 and fig. 2, a first shaft hole 101, a second shaft hole 102, a screw hole positioning block 103 and a positioning hole 104 are arranged on the differential case, when the first shaft hole and the second shaft hole are processed, the processing precision of the first shaft hole and the second shaft hole is high, the positioning of the differential case is required to be accurate, the differential case is positioned and subjected to tool setting, the tool setting process can occupy more installation time, the working efficiency is low, and therefore a fixing tool for processing the shaft hole of the differential case is urgently needed.

SUMMERY OF THE UTILITY MODEL

Problem to above-mentioned prior art exists, the utility model provides a fixed frock is used in shaft hole processing of differential box can realize the location accuracy, need not artifical tool setting, improves work efficiency's fixed frock is used in shaft hole processing of differential box greatly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a fixing tool for machining a shaft hole of a differential box body comprises a base, wherein a rotating shaft matched with a positioning hole and a plurality of pressing plates which are arranged around the rotating shaft and used for pressing the differential box body are arranged on the upper surface of the base;

a plurality of uniformly distributed abutting devices are slidably mounted in the rotating shaft along the radial direction of the rotating shaft, and one end, extending out of the rotating shaft, of each abutting device abuts against the side wall of the corresponding positioning hole.

Preferably, the hole has been seted up to the inside of pivot, support tight device and include the slide, the slide passes through spring slidable mounting in the inside of slide, the outside one end that the slide extends the pivot is rotated and is installed outer swivel, the slide is kept away from the one end that corresponds outer swivel and is extended to in the hole and rotate and install interior swivel.

Preferably, the inside of pivot rotates and installs the cam, evenly distributed has the cambered surface arch with a plurality of tight device one-to-one that support all around of cam, the cambered surface arch supports tightly and corresponds the inner side of interior swivel, the internally mounted of base has the motor, the output shaft installation of motor passes the pivot and installs on the cam.

Preferably, a plurality of fixing seats are circumferentially distributed on the outer portion of the base.

Preferably, the internally mounted of base has the hydro-cylinder, the output of hydro-cylinder articulates there is the connecting rod, the one end that the hydro-cylinder was kept away from to the connecting rod is rotated and is installed on supporting the loose axle tightly.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a set up a plurality of slides that can stretch out to the outside simultaneously in the inside of pivot, when the slide supports tightly in the locating hole, conveniently fix a position the second shaft hole, avoid processing at every turn and all carry out tool setting work, save time, improve work efficiency;

(2) the utility model discloses support tight loose axle and support tight fixed axle and can fix a position the angle of differential box, and then can fix a position the primary shaft hole, need not the tool setting.

Drawings

FIG. 1 is a structural view of a differential case of the present invention;

FIG. 2 is a structural diagram II of the differential case of the present invention;

FIG. 3 is a view showing the installation state of the present invention;

fig. 4 is a schematic structural view of the base of the present invention;

FIG. 5 is an internal cross-sectional view of the rotating shaft of the present invention;

fig. 6 is a cross-sectional view taken along line a-a of fig. 5 in accordance with the present invention;

fig. 7 is a top view of the base of the present invention;

fig. 8 is a partial sectional view of the oil cylinder, the connecting rod and the abutting movable shaft of the present invention.

Description of reference numerals:

1. the differential case comprises a differential case body, 101, a first shaft hole, 102, a second shaft hole, 103, a screw hole positioning block, 104, a positioning hole, 2, a base, 3, a pressing plate, 4, a pressing movable shaft, 5, a pressing fixed shaft, 6, a rotating shaft, 7, a sliding rail, 8, a sliding plate, 9, an outer rotating ring, 10, a spring, 11, a cam, 12, an inner rotating ring, 13, a motor, 14, a fixed seat, 15, an oil cylinder, 16 and a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1 to 8, a fixing tool for processing a shaft hole of a differential box comprises a base 2, a plurality of fixing seats 14 are circumferentially distributed on the outer portion of the base 2, the device can be fixed on a machine tool through the fixing seats 14, a rotating shaft 6 matched with a positioning hole 104 and a plurality of pressing plates 3 arranged around the rotating shaft 6 and used for pressing the differential box 1 are arranged on the upper surface of the base 2, the pressing plates 3 can be used for pressing the differential box 1, the pressing plates 3 are parts commonly used in the mechanical industry and can be pressed through bolts or air cylinders, and the fixing tool is a prior art, so that the fixing tool is not specifically described, a vertically arranged abutting fixing shaft 5 is arranged on one side of the upper surface of the base 2, an arc-shaped sliding rail 7 is arranged on one side of the abutting fixing shaft 5 on the upper surface of the base 2, and an abutting movable shaft 4 moving along the arc-shaped sliding rail 7 is arranged inside the sliding rail 7, an oil cylinder 15 is installed inside the base 2, an output end of the oil cylinder 15 is hinged with a connecting rod 16, one end, far away from the oil cylinder 15, of the connecting rod 16 is rotatably installed on the abutting movable shaft 4, after the output end of the oil cylinder 15 extends, the abutting movable shaft 4 can be pushed through the connecting rod 16, a workpiece is tightly pressed on the abutting fixed shaft 5 through the abutting movable shaft 4, an arc center of an arc surface on the arc-shaped slide rail 7 is overlapped with an axis of the rotating shaft 6, a cam 11 is rotatably installed inside the rotating shaft 6, arc surface bulges which are in one-to-one correspondence with the abutting devices are uniformly distributed on the periphery of the cam 11, the arc surface bulges abut against the inner sides of the corresponding inner rotating rings 12, a motor 13 is installed inside the base 2, an output shaft of the motor 13 penetrates through the rotating shaft 6 to be installed on the cam 11, bulges arranged outside the cam 11 can push the corresponding abutting devices to, further confirming the central axis of the positioning hole 104;

a plurality of tightening devices which are uniformly distributed are slidably mounted in the rotating shaft 6 along the radial direction of the rotating shaft 6, one end, extending out of the rotating shaft 6, of each tightening device is tightly tightened on the side wall of the positioning hole 104, an inner hole is formed in the rotating shaft 6, each tightening device comprises a sliding plate 8, each sliding plate 8 is slidably mounted in each sliding plate 8 through a spring 10, an outer rotating ring 9 is rotatably mounted at one end, extending out of the rotating shaft 6, of each sliding plate 8, one end, far away from the corresponding outer rotating ring 9, of each sliding plate 8 extends into the corresponding inner hole and is rotatably mounted with an inner rotating ring 12, each inner rotating ring 12 can be tightly tightened on a cam 11, each outer rotating ring 9 is tightly tightened on the inner ring surface of the positioning hole 104, and the second shaft hole 102.

When in use, the base 2 is fixedly arranged on a milling machine, the plurality of pressing plates 3 are all directed to the outside, the differential box body 1 is reversely buckled on the surface of the base 2, the positioning hole 104 is sleeved on the rotating shaft 6, the motor 13 drives the cam 11 to rotate, the cam 11 drives the plurality of sliding plates 8 to slide outwards in the rotating process, the outer rotating ring 9 is abutted against the inner side of the positioning hole 104, the center of the positioning hole 104 is basically consistent with the center of the rotating shaft 6, the center of a second shaft hole 102 to be processed can be further determined, the differential box body 1 is rotated to be abutted against the abutting fixed shaft 5, the output end of the oil cylinder 15 drives the abutting movable shaft 4 to abut against the differential box body 1 through the connecting rod 16, and then the differential box body 1 is pressed through the pressing plates 3, the rotating shaft 6 of the device can position the second shaft hole 102, the differential box body 1 is abutted against the abutting fixed shaft 5 to position the first shaft hole, manual tool setting is not needed, and the working efficiency is greatly improved.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A fixing tool for machining a shaft hole of a differential box body comprises a base (2), wherein a rotating shaft (6) matched with a positioning hole (104) and a plurality of pressing plates (3) which are arranged on the periphery of the rotating shaft (6) and used for pressing the differential box body (1) tightly are arranged on the upper surface of the base (2), a vertically-arranged abutting fixing shaft (5) is arranged on one side of the upper surface of the base (2), an arc-shaped sliding rail (7) is arranged on one side of the abutting fixing shaft (5) and located on the upper surface of the base (2), a abutting movable shaft (4) moving along the arc-shaped sliding rail (7) is arranged inside the sliding rail (7), and the arc center of the arc surface of the arc-shaped sliding rail (7) is coincided with the axis of the rotating;

a plurality of uniformly distributed abutting devices are slidably mounted in the rotating shaft (6) along the radial direction of the rotating shaft (6), and one end, extending out of the rotating shaft (6), of each abutting device abuts against the side wall of the positioning hole (104).

2. The fixing tool for machining the shaft hole of the differential case body is characterized in that an inner hole is formed in the rotating shaft (6), the tightening device comprises a sliding plate (8), the sliding plate (8) is slidably mounted inside the sliding plate (8) through a spring (10), an outer rotating ring (9) is rotatably mounted at one end, extending out of the rotating shaft (6), of the sliding plate (8), and an inner rotating ring (12) is rotatably mounted at one end, far away from the corresponding outer rotating ring (9), of the sliding plate (8) and extends into the inner hole.

3. The fixing tool for machining the shaft hole of the differential case body according to claim 2, wherein a cam (11) is rotatably installed inside the rotating shaft (6), arc-shaped protrusions corresponding to the plurality of abutting devices in a one-to-one mode are evenly distributed on the periphery of the cam (11), the arc-shaped protrusions abut against the inner sides of the corresponding inner rotating rings (12), a motor (13) is installed inside the base (2), and an output shaft of the motor (13) penetrates through the rotating shaft (6) and is installed on the cam (11).

4. The fixing tool for machining the shaft hole of the differential case body according to claim 3, wherein a plurality of fixing seats (14) are circumferentially distributed on the outer portion of the base (2).

5. The fixing tool for machining the shaft hole of the differential case body according to claim 4, wherein an oil cylinder (15) is installed inside the base (2), an output end of the oil cylinder (15) is hinged to a connecting rod (16), and one end, far away from the oil cylinder (15), of the connecting rod (16) is rotatably installed on the abutting movable shaft (4).