CN216882844U

CN216882844U - Clamping device is used in six processing of crankcase right side lid single face

Info

Publication number: CN216882844U
Application number: CN202220510673.1U
Authority: CN
Inventors: 唐昆鹏; 黄兴; 兰楠; 陈浩; 唐旭
Original assignee: China Automotive Engineering Research Institute Co Ltd
Current assignee: China Automotive Engineering Research Institute Co Ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-07-05
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a clamping device for single-sided six-shaft processing of a right cover of a crankcase, which comprises a positioning mechanism, a clamping mechanism and a cooling distribution block, wherein the positioning mechanism, the clamping mechanism and the cooling distribution block are all arranged on a clamp main body, the positioning mechanism adopts a plurality of workpiece supporting screws and positioning pins penetrating through corresponding positioning holes of workpieces to be matched with each other for omnibearing positioning, the clamping mechanism comprises an air cylinder, a guide sleeve, a rotary guide rod and a connecting block, the rear end of the rotary guide rod is positioned in the guide sleeve and is arranged on the moving end of the air cylinder through a joint, the front end of the rotary guide rod is connected with the front end of a compression screw, the rotary guide rod is provided with a rotary spiral groove and is provided with a rotary pin penetrating through the guide sleeve and then being inserted into the rotary spiral groove, and the rotary pin is not abutted against the bottom of the groove after being inserted; when the moving end of the cylinder is pushed forwards, the rear end of the compression screw can be moved out of the workpiece; when the removal end of cylinder moved backward, can rotate the rear end that compresses tightly the screw rod to the work piece on and support tightly, had the security height, accurate location, the work piece installation characteristics firm, structural design is ingenious.

Description

Clamping device is used in six processing of crankcase right side lid single face

Technical Field

The utility model relates to the technical field of crankcase cover clamping, in particular to a clamping device for single-sided six-shaft machining of a right cover of a crankcase.

Background

For processing automobile and motorcycle parts, advanced numerical control special machine tools are developed at home and abroad, the automobile and motorcycle parts are processed at the same time in a multi-step and multi-step manner by one-time clamping, and the automobile and motorcycle parts are good in processing quality, high in interchangeability, low in energy consumption, high in processing efficiency, high in automation degree and low in labor intensity of workers, and are ideal equipment for enterprises in mass production. According to the relevant statistical data, the yield ratio of the special machine tool in developed countries is about 10%, the number of China is only about 1% -2%, and the development of advanced special numerical control equipment in the manufacturing industry of the gasoline-motor component is an important development direction of the industry. In a special numerical control machine tool, the workpiece clamping device is mainly embodied by the advanced degree of the machine tool, so that a novel electromechanical liquid/gas integrated high-efficiency and high-precision special clamping device is formed by applying the modern mechanical design technology, the pneumatic or hydraulic technology, the sensor technology, the numerical control technology and the like, the equipment level of manufacturing and processing of the steam friction parts is improved, and the steam friction machine tool has an important promoting effect on the development of the steam friction industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamping device for single-sided six-shaft machining of a right cover of a crankcase, which is convenient and stable to clamp and accurate to position and solves the problem that the clamping device special for single-sided six-shaft machining of the right cover of the crankcase on a numerical control machine tool is lacked in the market.

Therefore, the technical scheme adopted by the utility model is as follows: a clamping device for single-sided six-shaft processing of a right cover of a crankcase comprises a positioning mechanism, a clamping mechanism and a cooling distribution block which are all installed on a clamp main body, wherein the positioning mechanism adopts a plurality of workpiece supporting screws and positioning pins penetrating through corresponding positioning holes of workpieces to be matched with each other for omnibearing positioning, the clamping mechanism comprises a cylinder, a guide sleeve, a rotary guide rod, a connecting block and a pressing screw rod, the rear end of the rotary guide rod is located in the guide sleeve and is installed on the moving end of the cylinder through a connector, the front end of the rotary guide rod is connected with the front end of the pressing screw rod through the connecting block, the rotary guide rod is provided with a rotary spiral groove and is provided with a rotary pin penetrating through the guide sleeve and then being inserted into the rotary spiral groove, and the rotary pin does not abut against the bottom of the groove after being inserted; when the moving end of the cylinder is pushed forwards, the rotary guide rod can be driven to translate forwards and rotate under the action of a rotary pin inserted into the rotary spiral groove, so that the rear end of the compression screw is moved out of the workpiece; when the moving end of the cylinder moves backwards, the rotating guide rod can be driven to move backwards and rotate under the action of the rotating pin inserted into the rotating spiral groove, so that the rear end of the compression screw rod is rotated to the workpiece and is abutted tightly.

Preferably as above-mentioned scheme, work piece supporting screw adopts 9 and the equipartition is located the work piece and leans on limit department, the locating pin adopts 2 and is located work piece upper right, left lower side department of leaning on respectively, and the distribution is even, and accurate location makes the work piece obtain stable support, adopts 9 messenger's work piece border homoenergetic to be supported, and positioning accuracy is high, support stability is strong.

Preferably, the number of the clamping mechanisms is 3, the clamping mechanisms are respectively positioned above, on the left and on the right of the workpiece, the edge of the workpiece is effectively guaranteed to be completely abutted and fixed in multiple directions, and fine boring machining failure caused by the fact that the workpiece cannot be fixed in place is avoided.

Further preferably, the cooling distribution block is mounted on the top of the fixture body to avoid interference with the machining process.

Further preferably, the front and back side of anchor clamps main part is equipped with the rib plate, increases the structure steadiness of anchor clamps main part, and the left and right sides of anchor clamps main part is the oblique angle with the juncture at top, effectively avoids being collided with when the installation transport and leads to the condition emergence that personnel are injured or anchor clamps warp, and the bottom of anchor clamps main part is equipped with the mounting hole of installing on the digit control machine tool, and simple to operate is reasonable.

Preferably, the joint is connected with the rotary guide rod and the cylinder through a deep groove ball bearing, so that the rotary guide rod can axially move and can also automatically rotate.

Further preferably, the front end of the rotary guide rod and the front end of the compression screw are both provided with threads and can penetrate through the corresponding through holes of the connecting block to be screwed and fixed through matched nuts, and the rotary guide rod and the compression screw are convenient to install and strong in installation stability.

The utility model has the beneficial effects that:

(1) positioning mechanism, clamping mechanism and cooling distribution piece are all installed in the anchor clamps main part, carry out accurate location to the work piece through positioning mechanism, stabilize the processing through clamping mechanism to the work piece, effectively ensure the firm accurate installation of work piece, ensure the staff and carry out the personal safety that finish boring chamfer adds man-hour to six holes of crankcase right-hand cover, avoid leading to processing serious error because of six inaccurate fix a position of crankcase right-hand cover.

(2) The positioning mechanism adopts a plurality of workpiece supporting screws and positioning pins penetrating through corresponding positioning holes of the workpieces to be matched with each other for omnibearing positioning, is simple to install, ensures that the supporting and positioning simultaneously act on the workpieces, and ensures the accurate positioning of the workpieces.

(3) The rear end of the rotary guide rod is positioned in the guide sleeve and is arranged on the moving end of the air cylinder through a joint, the front end of the rotary guide rod is connected with the front end of the compression screw through a connecting block, the connection is stable, and the structural rings are buckled with each other; the rotary guide rod is provided with a rotary spiral groove and is provided with a rotary pin which penetrates through the guide sleeve and then is inserted into the rotary spiral groove, the design is ingenious, the rotary guide rod axially moves and simultaneously automatically rotates, the compression screw rod is driven to rotate around the rotary guide rod, when the compression screw rod rotates to a workpiece, the workpiece is tightly pressed, and the workpiece is stably installed; when the rotary guide rod rotates to the outside of a workpiece, the workpiece is convenient to mount and dismount, and the rotary pin is inserted and does not abut against the bottom of the groove, so that the resistance is small when the rotary guide rod rotates.

In conclusion, the workpiece positioning device has the characteristics of high safety, accurate positioning, stable workpiece installation and ingenious structural design.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side sectional view of fig. 1.

Detailed Description

The utility model will be further illustrated by the following examples in conjunction with the accompanying drawings:

referring to fig. 1-2, a clamping device for processing six shafts on one side of a right cover of a crankcase is composed of a positioning mechanism 1, a clamping mechanism 2 and a cooling distribution block 3 which are all mounted on a clamp body 4.

The positioning mechanism 1 adopts a plurality of workpiece supporting screws and positioning pins 11 which penetrate through corresponding positioning holes of the workpiece A to be matched with each other for omnibearing positioning.

The work piece supporting screw adopts 9 and the equipartition is located work piece A and leans on limit department, locating pin 11 adopts 2 and is located work piece A upper right side, left lower side respectively and leans on limit department.

The clamping mechanism 2 is composed of a cylinder 21, a guide sleeve 22, a rotary guide rod 23, a connecting block 24 and a compression screw 25.

The number of the clamping mechanisms 2 is 3, and the clamping mechanisms are respectively positioned above, on the left and on the right of the workpiece A.

The rear end of the rotary guide rod 23 is positioned in the guide sleeve 22 and is installed on the moving end of the cylinder 21 through a joint, and the joint is connected with the rotary guide rod 23 and the cylinder 21 through a deep groove ball bearing.

The front end of the rotary guide rod 23 is connected with the front end of the compression screw 25 through a connecting block 24.

The front ends of the rotary guide rod 23 and the compression screw 25 are provided with threads and can penetrate through the corresponding through hole of the connecting block 24 and then be screwed and fixed through a matched nut.

The rotary guide rod 23 is provided with a rotary spiral groove and a rotary pin which penetrates through the guide sleeve 22 and then is inserted into the rotary spiral groove, and the rotary pin is not abutted against the bottom of the groove after being inserted.

The cooling distribution block 3 is mounted on top of the jig main body 4.

The front side and the rear side of the clamp main body 4 are provided with reinforcing rib plates 41, the junctions of the left side and the right side of the clamp main body 4 and the top are oblique angles, and the bottom of the clamp main body 4 is provided with a mounting hole mounted on a numerical control machine.

When the moving end of the cylinder 21 is pushed forward, the rotary guide rod 23 can be driven to translate forward and rotate under the action of the rotary pin inserted into the rotary spiral groove, so that the rear end of the compression screw 25 is moved out of the workpiece A, and the right cover of the crankcase can be conveniently detached and replaced on one side.

When the moving end of the air cylinder 21 moves backwards, the rotary guide rod 23 can be driven to move backwards and rotate under the action of the rotary pin inserted into the rotary spiral groove, so that the rear end of the compression screw 25 is rotated to the workpiece A and is abutted tightly, the single surface of the right cover of the crankcase is conveniently fixed, then the six holes of the right cover of the crankcase are subjected to finish boring chamfering processing, after the processing is finished, the cutter is withdrawn, the workpiece A is loosened, manual blanking is carried out, a new workpiece A is loaded, and the process is repeated in a circulating manner.

Claims

1. The utility model provides a six processing of crankcase right side lid single-sided are with clamping device which characterized in that: comprises a positioning mechanism (1), a clamping mechanism (2) and a cooling distribution block (3) which are all arranged on a clamp body (4), the positioning mechanism (1) adopts a plurality of workpiece supporting screws and positioning pins (11) which penetrate through corresponding positioning holes of the workpiece (A) to be matched with each other for omnibearing positioning, the clamping mechanism (2) comprises an air cylinder (21), a guide sleeve (22), a rotary guide rod (23), a connecting block (24) and a pressing screw rod (25), the rear end of the rotary guide rod (23) is positioned in the guide sleeve (22) and is installed on the moving end of the air cylinder (21) through a joint, the front end of the rotary guide rod (23) is connected with the front end of the pressing screw rod (25) through the connecting block (24), the rotary guide rod (23) is provided with a rotary spiral groove and is provided with a rotary pin which penetrates through the guide sleeve (22) and then is inserted into the rotary spiral groove, and the rotary pin is not abutted against the bottom of the groove after being inserted; when the moving end of the cylinder (21) is pushed forwards, the rotary guide rod (23) can be driven to translate forwards and rotate under the action of a rotary pin inserted into the rotary spiral groove, so that the rear end of the compression screw (25) is moved out of the workpiece (A); when the moving end of the air cylinder (21) moves backwards, the rotary guide rod (23) can be driven to translate backwards and rotate under the action of the rotary pin inserted into the rotary spiral groove, so that the rear end of the compression screw rod (25) is rotated to the workpiece (A) and is abutted tightly.

2. The clamping device for processing the right cover single-face six shafts of the crankcase according to claim 1, wherein: the workpiece supporting screws are 9 and uniformly distributed at the positions close to the edges of the workpiece (A), and the positioning pins (11) are 2 and are respectively positioned at the positions close to the upper right edge and the lower left edge of the workpiece (A).

3. The clamping device for processing the right cover single-face six shafts of the crankcase according to claim 1, wherein: the number of the clamping mechanisms (2) is 3, and the clamping mechanisms are respectively positioned above, on the left and on the right of the workpiece (A).

4. The clamping device for processing the right cover single-face six shafts of the crankcase according to claim 1, wherein: the cooling distribution block (3) is arranged on the top of the clamp body (4).

5. The clamping device for processing the right cover single-face six shafts of the crankcase according to claim 1, wherein: the front side and the rear side of the clamp main body (4) are provided with reinforcing rib plates (41), the junction of the left side and the right side of the clamp main body (4) and the top is an oblique angle, and the bottom of the clamp main body (4) is provided with a mounting hole mounted on a numerical control machine.

6. The clamping device for processing the right cover single-face six shafts of the crankcase according to claim 1, wherein: the joint is connected with a rotary guide rod (23) and an air cylinder (21) by adopting a deep groove ball bearing.

7. The clamping device for processing the right cover single-face six shafts of the crankcase according to claim 1, wherein: the front end of the rotary guide rod (23) and the front end of the compression screw rod (25) are provided with threads and can penetrate through the corresponding through hole of the connecting block (24) to be screwed and fixed through a matched nut.