CN210189057U

CN210189057U - Slicing fixture for cutting ultra-thin ductile iron piston ring

Info

Publication number: CN210189057U
Application number: CN201920683568.6U
Authority: CN
Inventors: Shuqiang Wang; 王曙强
Original assignee: Changsha Yuandan Power Technology Co Ltd
Current assignee: Changsha Yuandan Power Technology Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-03-27
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a section anchor clamps of cutting ultra-thin ductile iron piston ring, the one end of rotation axis sets up pneumatic chuck, connects the pneumatic jack catch more than three on the pneumatic chuck, and pneumatic jack catch uses the rotation axis to arrange as central annular array, and pneumatic jack catch sets up the detachable mount pad towards the one end at array center, sets up detachable clamping rod on the mount pad, and the circle cup joints on the clamping rod in the piston ring work piece. The utility model discloses a clamping stick fully guarantees the effective clamp of piston ring from the mode of piston ring inner circle side clamping, has overcome traditional rubber sleeve and has risen the not enough of tight clamping mode easy inefficacy that rises, and the clamping stick can also repetitious usage, when improving the processing production quality of piston ring, reduces the loss of consumptive material, and reduce cost has extensive popularization and application space.

Description

Slicing fixture for cutting ultra-thin ductile iron piston ring

Technical Field

The utility model belongs to the technical field of the internal-combustion engine piston ring is made, especially, relate to a section anchor clamps of cutting ultra-thin type ductile iron piston ring.

Background

The piston ring has important value and significance in the production and the manufacture of the internal combustion engine, and has strict processing and production requirements on the piston ring. With the development of a nodular cast iron piston ring from single two-piece casting to short cylinder multi-piece casting, the slicing of an ultrathin nodular cast iron piston ring becomes the biggest problem, in the technical field of traditional internal combustion engine piston ring manufacturing, a clamping mode of rubber sleeve tensioning becomes very easy to fail, because the rubber sleeve needs to be cut every time of cutting, a narrow rubber supporting belt after cutting cannot bear repeated clamping and fails, therefore, the processing cost in the technical field of traditional internal combustion engine piston ring manufacturing is higher, and because the strength of the nodular cast iron piston ring is higher and is not easy to break, the phenomena of clamping tightness and clamping failure are very easy to occur due to the adoption of the traditional mode of soft clamping of the rubber sleeve, the integral production rejection rate of the piston ring is higher, and more rubber sleeves are consumed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a slicing fixture for cutting an ultra-thin ductile iron piston ring.

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

the utility model provides a section anchor clamps of cutting ultra-thin type ductile iron piston ring, includes rotation axis, air chuck, pneumatic jack catch, mount pad, clamping stick, the one end of rotation axis sets up air chuck, connect the pneumatic jack catch more than three on the air chuck, the rotation axis with air chuck and air chuck with the transmission of pneumatic jack catch is connected, pneumatic jack catch with the rotation axis arranges for central annular array, the one end at pneumatic jack catch orientation array center sets up the detachable mount pad, set up detachable clamping stick on the mount pad, cup joint in the piston ring work piece on the clamping stick.

Preferably, the mounting seat is provided with a pin hole, the clamping rod is provided with a corresponding pin hole, and the mounting seat is in transmission connection with the clamping rod through a cylindrical pin with a stuffy plug.

Preferably, one side of the pneumatic clamping jaw, which is opposite to the rotating shaft, is provided with two locking screw holes arranged along the pneumatic direction of the pneumatic clamping jaw, the mounting seat is provided with corresponding locking screw holes, and the pneumatic clamping jaw and the mounting seat are connected in the locking screw holes of the mounting seat through locking screws to install the mounting seat on the pneumatic clamping jaw.

Preferably, the number of clamping bars is three.

Preferably, the clamping bar is cylindrical.

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

the utility model discloses a pneumatic chuck transmission pneumatic jack catch and the mount pad of installing on pneumatic jack catch, by the inner circle of clamping stick restriction piston ring work piece on the mount pad, and withstand the inner circle side of piston ring work piece through pneumatic chuck drive clamping stick, on the one hand, the contact surface of the inner circle of clamping stick and piston ring is tangent, the damage that causes the piston ring in the effectual reduction course of working, on the other hand, the position of effectual clamp piston ring, the quality of assurance processing production, thereby reduce the disability rate; this kind of section anchor clamps of cutting ultra-thin ductile iron piston ring, through the mode of clamping stick from piston ring inner circle side clamping, fully guarantee that the piston ring is effectively pressed from both sides tightly to when the rotation axis rotates, slice the piston ring work piece by milling cutter, fine overcome traditional rubber sleeve tight clamping mode of rising and became invalid easily not enough, in addition, the clamping stick can also repetitious usage, when improving the processing production quality of piston ring, reduce the loss of consumptive material, reduce cost has extensive popularization and application space.

Drawings

Fig. 1 is the structural schematic diagram of the slicing fixture for cutting the ultra-thin ductile iron piston ring provided by the utility model.

Fig. 2 is the left side view of the slicing fixture for cutting the ultra-thin ductile iron piston ring provided by the utility model.

In the drawings, 1: rotation axis, 2: air chuck, 3: pneumatic jack catch, 4: mount pad, 5: clamping rod, 6: piston ring workpiece, 7: stuffy plug pin, 8: and locking the screw.

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.

As shown in the attached drawings 1-2, the slicing fixture for cutting the ultra-thin ductile iron piston ring comprises a rotating shaft 1, a pneumatic chuck 2, pneumatic clamping jaws 3, a mounting seat 4 and a clamping rod 5, wherein the pneumatic chuck 2 is arranged at one end of the rotating shaft 1, the pneumatic chuck 2 is connected with the three pneumatic clamping jaws 3, the pneumatic clamping jaws 3 are L-shaped, three-quarter round holes with the same diameter as that of the clamping rod 5 are cut on one edge of the pneumatic clamping jaws 3L-shaped, and the non-clamping end of each round hole is plugged by a cylindrical pin for reducing the effective length of the clamping rod 5. The pneumatic clamping jaw type piston ring is characterized in that the rotating shaft 1 is in transmission connection with the pneumatic chuck 2 and the pneumatic chuck 2 is in transmission connection with the pneumatic clamping jaws 3, the pneumatic clamping jaws 3 are arranged by taking the rotating shaft 1 as a central annular array, the pneumatic clamping jaws 3 are arranged on the mounting seat 4 towards one end of the array center and are provided with detachable mounting seats 4, detachable clamping rods 5 are arranged on the mounting seats 4, and the inner circle of a piston ring workpiece 6 is sleeved on the clamping rods 5. The mounting seat 4 is provided with a pin hole, the clamping rod 5 is provided with a corresponding pin hole, and the mounting seat 4 is in transmission connection with the clamping rod 5 through a stuffy plug cylindrical pin 7.

The utility model discloses a pneumatic jack catch 3 of pneumatic chuck 2 transmission and install mount pad 4 on pneumatic jack catch 3, by the inner circle of 5 restriction piston ring work pieces of clamping stick on mount pad 4, and withstand piston ring work piece 6's inner circle side through 2 drive clamping sticks 5 of pneumatic chuck, on the one hand, the contact surface of clamping stick 5 and the inner circle of piston ring is tangent, the damage that leads to the fact the piston ring in the effectual reduction course of working, on the other hand, the effectual position that has pressed from both sides the tight piston ring, guarantee the quality of processing production, thereby reduce the disability rate.

Pneumatic jack catch 3 is equipped with two edges in one side of rotation axis 1 dorsad the 8 holes of locking screw that the pneumatic direction of pneumatic jack catch 3 set up, be equipped with corresponding 8 holes of locking screw on mount pad 4, connect through locking screw 8 pneumatic jack catch 3 with install mount pad 4 on pneumatic jack catch 3 in 8 holes of locking screw of mount pad 4, the quantity of clamping stick 5 is three, clamping stick 5 sets to cylindrically, and clamping stick 5 can realize fast switch over, and when a direction of clamping stick 5 damaged through repetitious usage, only need loosen locking screw 8, after the rotatory certain angle of clamping stick 5, it can reuse to tighten locking screw 8 again.

Compared with an alloy cast iron piston ring, the bending strength of the ductile iron piston ring is 2-3 times larger, and the piston ring is not easy to break and damage during cutting, so that a hard contact clamping mode is adopted to avoid the situation that the rubber sleeve is tightened and fails due to the fact that a piston ring workpiece 6 is too thin in a rubber sleeve clamping mode. The utility model takes a pneumatic chuck 2 as a platform, is arranged on a rotating shaft 1, three pneumatic clamping jaws 3 are arranged on the pneumatic chuck 2, a clamping rod 5 vertical to the pneumatic direction is respectively arranged on the three pneumatic clamping jaws 3 through a mounting seat 4, the inner circle of a workpiece is sleeved on the three clamping rods 5, the pneumatic chuck 2 drives the clamping rods 5 to clamp a piston ring workpiece 6, and the piston ring workpiece 6 is sliced by a milling cutter under the condition that the rotating shaft 1 drives the piston ring workpiece 6 to rotate; when the workpiece is cut, the milling cutter needs to mill the cylindrical rod, when the cylindrical rod is damaged by being processed for many times, the fixed part of the cylindrical rod can be loosened, the cylindrical rod is rotated by about 120 degrees and then fixed for reuse, and each cylindrical rod is replaced by a new cylindrical rod after being used for three times.

Aiming at the characteristics of high strength and difficult fracture of the nodular cast iron material, a soft clamping mode of a rubber sleeve is abandoned, and a hard clamping mode of a pneumatic three-jaw internal support is adopted, so that reliable clamping is ensured, and failure caused by too narrow contact zone is difficult to occur. This kind of section anchor clamps of cutting ultra-thin type ductile iron piston ring, through the mode of clamping stick 5 from piston ring inner circle side clamping, fully guarantee that the piston ring is effectively pressed from both sides tightly, thereby when rotation axis 1 rotates, slice piston ring work piece 6 by milling cutter, fine overcome traditional rubber sleeve tight clamping mode of rising and lose efficacy easily not enough, and in addition, clamping stick 5 can also repetitious usage, when improving the processing production quality of piston ring, reduce the loss of consumptive material, and the cost is reduced, wide popularization and application space has.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a section anchor clamps of cutting ultra-thin type ductile iron piston ring, includes rotation axis, air chuck, pneumatic jack catch, mount pad, clamping stick, the one end of rotation axis sets up air chuck, connect the pneumatic jack catch more than three on the air chuck, the rotation axis with air chuck and air chuck with the transmission of pneumatic jack catch is connected, pneumatic jack catch with the rotation axis arranges for central annular array, the one end at pneumatic jack catch orientation array center sets up the detachable mount pad, set up detachable clamping stick on the mount pad, cup joint in the piston ring work piece on the clamping stick.

2. The slicing fixture for cutting the ultra-thin ductile iron piston ring as claimed in claim 1, wherein the mounting seat is provided with a pin hole, the clamping rod is provided with a corresponding pin hole, and the mounting seat is in transmission connection with the clamping rod through a cylindrical pin of a plug.

3. The slicing fixture for cutting the ultra-thin ductile iron piston ring as claimed in claim 2, wherein two locking screw holes are formed in a side of the pneumatic clamping jaw facing away from the rotation shaft, the locking screw holes are formed in the mounting seat, the locking screw holes are correspondingly formed in the mounting seat, and the mounting seat is mounted on the pneumatic clamping jaw through the locking screw connection in the locking screw holes of the pneumatic clamping jaw and the mounting seat.

4. The slicing fixture for cutting the ultra-thin ductile iron piston ring according to any one of claims 1 to 3, wherein the number of said clamping bars is three.

5. The slicing fixture for cutting the ultra-thin ductile iron piston ring according to claim 4, wherein said clamping bar is configured in a cylindrical shape.