CN215317243U

CN215317243U - Machining, positioning and clamping device for automobile steering pump shell

Info

Publication number: CN215317243U
Application number: CN202121581404.6U
Authority: CN
Inventors: 董钢; 刘小四; 陆永强
Original assignee: Nanjing Jincheng Precision Machinery Co ltd
Current assignee: Nanjing Jincheng Precision Machinery Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-28
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a machining, positioning and clamping device for an automobile steering pump shell, which comprises a bottom plate, a clamping mechanism and a supporting and positioning assembly, wherein the bottom plate is provided with a positioning hole; the clamping mechanism comprises an air cylinder, two fixed seats, a pin shaft seat and two clamping plates; the cylinder and the fixing seats are both arranged on the bottom plate, the pin shaft seat is connected with a piston rod of the cylinder, and the two fixing seats are symmetrically arranged on two sides of the pin shaft seat; the middle part and one end part of each clamping plate are provided with pin holes, the pin holes at the end parts of the two clamping plates are respectively connected with two fixed seats, and the pin holes at the middle part are connected with pin shaft seats; when a piston rod of the cylinder drives the pin shaft seat to act, the two clamping plates rotate around the pin shaft seat to clamp or loosen the shell of the automobile steering pump; the supporting and positioning assembly comprises a positioning column and a supporting nail which are both arranged on the bottom plate and respectively correspond to the through hole of the automobile steering pump shell. The device can be to the accurate location of die-casting product, and firm clamp tightly ensures going on smoothly of machining for production efficiency improves greatly, and the product processing uniformity is good.

Description

Machining, positioning and clamping device for automobile steering pump shell

Technical Field

The utility model relates to machining equipment, in particular to a positioning and clamping device for machining of an automobile steering pump shell.

Background

Donghua D23 is an electric automobile steering pump, and is currently applied to electric automobiles with models including Wuling-Mitsubishi Ev-Mini and the like. As shown in fig. 1-2, the housing is made by a die-casting process, and the die-casting product requires uniform allowance of the product to ensure that the allowance is not uneven in the subsequent process, but the residual consistency cannot be ensured by manually removing the redundant parts such as a casting pouring system and the like at present, and meanwhile, the manual operation process has low efficiency and high rejection rate, and has high physical and technical requirements on operators.

If machining is adopted to remove redundant parts, the die-casting product needs to be accurately positioned, and the current machining equipment is not suitable for positioning and clamping the steering pump of the electric automobile.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a machining, positioning and clamping device for an automobile steering pump shell, which can accurately position and clamp an electric automobile steering pump in a machining process.

The technical scheme is as follows: the utility model relates to a machining, positioning and clamping device for an automobile steering pump shell, which comprises a bottom plate, a clamping mechanism and a supporting and positioning assembly, wherein the bottom plate is provided with a positioning hole; the clamping mechanism comprises an air cylinder, two fixed seats, a pin shaft seat and two clamping plates; the air cylinder and the fixing seats are both arranged on the bottom plate, the pin shaft seat is connected with a piston rod of the air cylinder, and the two fixing seats are symmetrically arranged on two sides of the pin shaft seat; the middle part and one end part of each clamping plate are respectively provided with a pin hole, the pin holes at the end parts of the two clamping plates are respectively connected with two fixed seats, and the pin hole at the middle part is connected with the pin shaft seat; when a piston rod of the air cylinder drives the pin shaft seat to act, the two clamping plates rotate around the pin shaft seat to clamp or loosen the shell of the automobile steering pump; the supporting and positioning assembly comprises a positioning column and a supporting nail which are arranged on the bottom plate and respectively correspond to the through hole of the automobile steering pump shell.

The working principle is as follows: when the die-casting device is used, a die-casting product is placed on the supporting nail and the positioning column of the device, and the product is accurately positioned by the positioning column. After the die-casting product is positioned, the piston of the air cylinder moves to drive the pin shaft seat to move up and down, and then the clamping plate is driven to rotate around the pin shaft seat, so that the product is clamped.

Specifically, the air cylinder is installed on the back surface of the bottom plate, and a piston rod of the air cylinder penetrates through the front surface of the bottom plate and is connected with the pin shaft seat.

The fixing seat, the clamping plate and the supporting and positioning assembly are all located on the front face of the bottom plate. The cylinder sets up can avoid forming the interference with other parts on the space at the back of bottom plate, makes structural configuration compacter.

In one embodiment, the pin hole in the middle of the clamping plate is an oblong hole. When the pin shaft seat moves up and down, the long round hole provides enough moving space for the pin shaft, and then the rotation of the clamping plate is realized.

In one embodiment, the pin hole of the end of the clamping plate is an oblong arc-shaped hole. When the pin shaft seat moves up and down, the long circular arc-shaped hole slides relative to the fixed seat, and then the rotation of the clamping plate is realized.

Specifically, the positioning column comprises a positioning sleeve, a movable positioning pin arranged in the positioning sleeve and a spring arranged in the positioning sleeve and connected with the positioning pin. The locating pin can float from top to bottom in the locating sleeve, and is favorable for installation and accurate positioning of die-casting products.

Further, the head of the positioning pin is provided with a taper. The taper design is adopted to realize the self-centering function, and the positioning speed and the positioning accuracy are enhanced.

Has the advantages that: compared with the prior art, the device can carry out accurate location to the auto steering pump shell body die-casting product, and is firm tight tightly to guarantee going on smoothly of machining, make machining production efficiency improve greatly, the product processing uniformity is good. Meanwhile, the labor intensity of workers is reduced, and the technical requirements on operators are lower. In addition, the device has simple structure, convenient operation and convenient maintenance.

Drawings

FIG. 1 is a schematic perspective view of a steering pump housing for an automobile;

FIG. 2 is a rear elevational view of the steering pump housing of the motor vehicle;

FIG. 3 is a schematic perspective view of the machining positioning and clamping device in an embodiment in use;

FIG. 4 is a front view of the machining positioning and clamping device in use in the embodiment;

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is a perspective view of the steering pump housing of the vehicle shown in FIG. 3 with one of the steering pump housings removed;

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a right side view of FIG. 8;

FIG. 10 is a top view of FIG. 8;

FIG. 11 is a schematic structural view of a splint according to an embodiment;

FIG. 12 is a schematic view showing a coupling structure of two clamp plates and a pin shaft seat in the embodiment;

FIG. 13 is a schematic structural view of a positioning pin in the examples.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the steering pump housing 100 of this type has four through holes around its large circular hole, and the device of the present invention utilizes this structure.

Specifically, as shown in fig. 3-6, the machining positioning and clamping device for the automobile steering pump casing mainly comprises three components, namely a bottom plate 1, a clamping mechanism and a supporting and positioning assembly, wherein the clamping mechanism is used for clamping the automobile steering pump casing, and the supporting and positioning assembly is used for positioning the automobile steering pump casing to a precise machining position.

Referring to fig. 7-10, the clamping mechanism includes a cylinder 2, two fixing bases 3, a pin shaft base 4, and two clamping plates 5. The cylinder 2 is arranged on the back surface of the bottom plate 1, and a piston rod of the cylinder penetrates through the front surface of the bottom plate 1 and is connected with a pin shaft seat 4 positioned on the front surface of the bottom plate 1. Between the cylinder 2 and the base plate 1, several spacers 8 are arranged for adjusting the direction of movement of the piston rod of the cylinder 2 perpendicular to the base plate 1. The fixing seats 3 are arranged on the front surface of the bottom plate 1, and as shown in the figure, the two fixing seats 3 are respectively arranged on two sides of a piston rod of the air cylinder 2 and are symmetrical about a central axis of the piston rod. The pin shaft seat 4 is arranged at the end part of the piston rod and is positioned in the middle of the two fixed seats 3.

Referring to fig. 11 and 12, the clamping plate 5 is substantially L-shaped, and has pin holes at one end and at the middle for hinging the clamping plate 5 to the fixing base 3, and pin holes at the middle for hinging the clamping plate 5 to the pin shaft base 4. As shown in the figure, in the present embodiment, the pin holes in the middle of the two clamp plates 5 are both long round holes (also called kidney-shaped holes), and the pin holes at the end are ordinary round holes, so that when the piston rod of the cylinder 2 extends and retracts, the pin shaft of the pin shaft seat 4 can slide in the long round holes, so that the clamp plates 5 rotate by a certain angle to clamp or release the automobile steering pump housing 100 from the inside.

In other embodiments, the clamping plate 5 may be configured in other shapes as required, and of course, the pin hole in the middle portion may be configured as a common circular hole, and the pin hole in the end portion may be configured as an elongated circular hole. Therefore, when the piston rod of the cylinder 2 stretches, the pin shaft seat 4 drives the clamping plate 5 to move, so that the pin shaft in the fixed seat 3 slides in the long circular arc-shaped hole, the clamping plate 5 can further rotate by a certain angle, and the automobile steering pump shell 100 is clamped or loosened from the inside.

The supporting and positioning assembly comprises two positioning columns 6 and two supporting nails 7 which are arranged on the front surface of the base plate 1 and respectively correspond to the positions of the through holes of the automobile steering pump shell 100. Referring to fig. 8 again, the two positioning columns 6 and the two supporting nails 7 are symmetrical about the central axis of the piston rod of the cylinder 2, and the two positioning columns 6 and the two supporting nails 7 are arranged diagonally.

As shown in fig. 13, the positioning column 6 includes a positioning sleeve 61, a positioning pin 62 and a spring 63, the positioning pin 62 is movably mounted in the positioning sleeve 61 by a locking pin, the spring 63 is disposed inside the positioning sleeve 61 and connected to the positioning pin 62, so that the positioning pin 62 can float up and down in the positioning sleeve 61. During installation of the steering pump housing 100 in the device, the alignment pin 62 is first depressed and, when installed in place, extends through the aperture. Preferably, the head of the positioning pin 62 is designed with a tapered shape so as to achieve a self-centering function.

Claims

1. A machining, positioning and clamping device for an automobile steering pump shell is characterized by comprising a bottom plate (1), a clamping mechanism and a supporting and positioning assembly;

the clamping mechanism comprises a cylinder (2), two fixed seats (3), a pin shaft seat (4) and two clamping plates (5); the air cylinder (2) and the fixing seats (3) are both arranged on the bottom plate (1), the pin shaft seat (4) is connected with a piston rod of the air cylinder (2), and the two fixing seats (3) are symmetrically arranged on two sides of the pin shaft seat (4); pin holes are formed in the middle and one end of each clamping plate (5), the pin holes in the end parts of the two clamping plates (5) are respectively connected with the two fixing seats (3), and the pin holes in the middle are connected with the pin shaft seats (4); when a piston rod of the air cylinder (2) drives the pin shaft seat (4) to act, the two clamping plates (5) rotate around the pin shaft seat (4) to clamp or loosen the automobile steering pump shell (100);

the supporting and positioning assembly comprises a positioning column (6) and a supporting nail (7), which are arranged on the bottom plate (1) and respectively correspond to the through hole position of the automobile steering pump shell (100).

2. The machining, positioning and clamping device for the pump shell of the automobile steering pump is characterized in that the air cylinder (2) is installed on the back surface of the bottom plate (1), and a piston rod of the air cylinder penetrates through the front surface of the bottom plate (1) and is connected with the pin shaft seat (4).

3. The automotive steering pump housing machining locating and clamping device according to claim 2, characterized in that the fixing seat (3), the clamping plate (5) and the supporting and locating assembly are all located on the front face of the bottom plate (1).

4. The automotive steering pump housing machining positioning clamping device according to claim 2, characterized in that a plurality of cushion columns (8) are arranged between the cylinder (2) and the bottom plate (1).

5. The automotive steering pump housing machining locating and clamping device according to claim 1, characterized in that the pin hole in the middle of the clamp plate (5) is an oblong hole.

6. The automotive steering pump housing machining locating and clamping device according to claim 1, characterized in that the pin hole of the end of the clamping plate (5) is an oblong arc-shaped hole.

7. The automotive steering pump housing machining positioning and clamping device according to claim 1, characterized in that the supporting and positioning assembly is provided with two positioning columns (6) and two supporting nails (7), and the two positioning columns (6) and the two supporting nails (7) are symmetrical about a central axis of a piston rod of the cylinder (2).

8. The machining positioning and clamping device for the pump casing of the automobile steering pump according to claim 7, characterized in that the two positioning columns (6) and the two support nails (7) are arranged diagonally.

9. The automotive steering pump housing machining positioning and clamping device according to claim 1, characterized in that the positioning column (6) comprises a positioning sleeve (61), a positioning pin (62) movably arranged in the positioning sleeve (61), and a spring (63) arranged inside the positioning sleeve (61) and connected with the positioning pin (62).

10. The automotive steering pump housing machining locating clip assembly of claim 9, wherein the head of the locating pin (62) is tapered.