Piston insert ring clamping jaw

Abstract

The utility model discloses a piston insert ring clamping jaw which comprises an insert ring clamping jaw body, a pneumatic jaw disc and a clamping base and further comprises a plurality of L-shaped insert ring positioning rods, the insert ring clamping jaw body is fixedly installed on the pneumatic jaw disc through a nut, and the pneumatic jaw disc is embedded into the lower end of the clamping base through a mortise and tenon joint. And the L-shaped insert ring positioning rod is welded and mounted on the clamping base in an embedded manner. The clamping function and the leveling function are separated, the damage degree of an aluminizing layer on the surface of the insert ring is reduced, the probability of ring edge slag hole defects is reduced, and the grabbing reliability of the insert ring is improved.

Description

Technical Field

[0001] This utility model relates to the field of instrument processing technology, specifically a piston ring clamp. Background Technology

[0002] With the increasing power, boost load, and high-speed reciprocating motion of engines, the requirements for the strength, high-temperature resistance, impact resistance, and wear resistance of pistons, a core component of the engine, are becoming increasingly stringent. Currently, aluminum-silicon pistons mainly employ wear-resistant inserts and internal cooling oil passage structures. The purpose of using an insert structure is to improve the wear resistance of the first ring groove of the aluminum piston and extend its service life. However, to avoid poor heat transfer between the wear-resistant insert and the aluminum body, the bonding requirements between the wear-resistant insert and the piston body are extremely high, and the presence of porosity defects is not allowed. To meet the bonding quality requirements between the wear-resistant insert and the aluminum body, an aluminizing operation is required during the production process. Furthermore, during the transfer of the insert after aluminizing, it is crucial to prevent the aluminized layer from cooling or being damaged, which could lead to poor bonding defects.

[0003] In actual operation, such as Figure 3 As shown, after aluminizing, the insert is transferred by the clamps and installed in the mold. A small area of ​​the aluminized layer on the surface of the insert will be damaged. After the piston blank cast with this insert is processed, a hole defect will appear at the edge of the insert. Utility Model Content

[0004] To solve the above problems, this utility model provides a piston ring insert gripper, including a ring insert gripper, a pneumatic gripper disc, a gripping base, and multiple L-shaped ring insert positioning rods. The ring insert gripper is fixedly installed on the pneumatic gripper disc by nuts, the pneumatic gripper disc is embedded into the lower end of the gripping base by tenons and mortises, and the L-shaped ring insert positioning rods are embedded and welded to the gripping base.

[0005] Furthermore, the ring-shaped gripper is specifically a ring-shaped three-jaw gripper, wherein any one of the grippers specifically includes: an L-shaped support base and an L-shaped clamping member; one end of the L-shaped support base is fixedly installed on the pneumatic gripper disc by a nut, and the other end is fixedly connected to the L-shaped clamping member by a nut.

[0006] Furthermore, the bottom end of the gripper is lower than the bottom end of the L-shaped inlaid positioning rod.

[0007] Furthermore, there are two L-shaped ring positioning rods, which are respectively installed on both sides of any one of the clamping claws of the ring clamping claw.

[0008] Furthermore, the ring-shaped gripper, pneumatic gripper disc, L-shaped ring-shaped positioning rod, and clamping base are all made of stainless steel.

[0009] This utility model provides a piston ring clamp, which has the following advantages:

[0010] This invention separates the clamping and flattening functions, reducing the degree of damage to the aluminized layer on the surface of the ring, lowering the probability of ring edge slag hole defects, and improving the reliability of ring gripping. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the device structure provided by this utility model;

[0013] Figure 2 A schematic diagram of the device provided by this utility model when performing ring-grabbing;

[0014] Figure 3 A schematic diagram of the device used in the prior art provided by this utility model.

[0015] In the diagram, 1. Inlaid ring gripper; 2. Pneumatic gripper disc; 3. L-shaped inlaid ring positioning rod; 4. Clamping base. Detailed Implementation

[0016] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] The following detailed description of the implementation method of this utility model is provided in conjunction with the accompanying drawings. The description only covers some embodiments and not all embodiments. For clarity, representations and descriptions unrelated to this utility model are omitted from the drawings and description.

[0018] To provide a clearer understanding of the technical features, objectives, and beneficial effects of this utility model, the following detailed description of the technical solution is provided. Obviously, the described embodiments are only a portion of the embodiments of this utility model, not all of them, and should not be construed as limiting the scope of implementation of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In this invention, the flattening and gripping functions of the ring insert gripper are separated, the upper plane positioning reference of the ring insert gripper is eliminated, and two fixed L-shaped ring insert positioning rods 3 are used as the upper plane positioning reference of the ring insert. This ensures that there is no relative movement between the ring insert gripper and the ring insert during the gripping process, thus preventing damage to the aluminum diffusion layer on the surface of the ring insert and avoiding the generation of air holes on the ring edge.

[0020] like Figure 1 , Figure 2 As shown, this utility model provides a piston ring insert clamp, including a ring insert clamp 1, a pneumatic claw disk 2, a clamping base 4, and a plurality of L-shaped ring insert positioning rods 3. The ring insert clamp 1 is fixedly installed on the pneumatic claw disk 2 by nuts. The pneumatic claw disk 2 is embedded into the lower end of the clamping base 4 by tenons and mortises. The L-shaped ring insert positioning rods 3 are embedded and welded to the clamping base 4.

[0021] The ring-set gripper 1 is specifically a ring-set three-jaw gripper, wherein any one of the grippers specifically includes: an L-shaped support base and an L-shaped clamping member; one end of the L-shaped support base is fixedly installed on the pneumatic gripper disk 2 by a nut, and the other end is fixedly connected to the L-shaped clamping member by a nut.

[0022] The bottom of the gripper is lower than the bottom of the L-shaped ring positioning rod 3; there are two L-shaped ring positioning rods 3, which are respectively installed on both sides of any gripper of the ring gripper 1.

[0023] The ring-inlaid gripper 1, pneumatic gripper disc 2, L-shaped ring-inlaid positioning rod 3, and clamping base 4 are all made of stainless steel.

[0024] After the improved insert clamps are installed with insert rings, the aluminum layer on the insert ring surface is observed to have only slight marks at the contact points with the flat structure, and there is no sign of scratches or damage to the aluminum layer. After the cast piston blank is machined, there is no sign of air holes on the ring edge, and the ultrasonic bonding pass rate is ≥99%.

[0025] The original jaw's end face flattening structure was removed, and two protruding support rods were installed on the clamping base 4 connected to the jaw. One end of the support rod was tightly fitted and fixed to the pneumatic gripper disc, and the other end was designed with an "L"-shaped structure, which served to flatten the insert ring during the ring gripping process. In this way, since the flattening structure is separate from the ring gripping structure, there is no relative movement between the insert ring and the flattening structure during the ring gripping process, thus avoiding damage to the surface of the aluminized layer of the insert ring.

[0026] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A piston ring clamp, comprising a ring clamp (1), a pneumatic jaw disc (2), and a clamping base (4), characterized in that, It also includes multiple L-shaped inlaid ring positioning rods (3), the inlaid ring grippers (1) are fixedly installed on the pneumatic gripper disc (2) by nuts, the pneumatic gripper disc (2) is embedded into the lower end of the clamping base (4) by tenons and mortises, and the L-shaped inlaid ring positioning rods (3) are embedded and welded to the clamping base (4).

2. The piston ring clamp according to claim 1, characterized in that, The ring-shaped gripper (1) is specifically a ring-shaped three-jaw gripper, wherein any one of the grippers specifically includes: an L-shaped support base and an L-shaped clamping member; one end of the L-shaped support base is fixedly installed on the pneumatic gripper disc (2) by a nut, and the other end is fixedly connected to the L-shaped clamping member by a nut.

3. The piston ring clamp according to claim 2, characterized in that, The bottom of the gripper is lower than the bottom of the L-shaped inlaid positioning rod (3).

4. The piston ring clamp according to claim 2, characterized in that, The L-shaped inlaid ring positioning rod (3) consists of two rods, which are respectively installed on both sides of any one of the jaws of the inlaid ring clamp (1).

5. The piston ring clamp according to claim 1, characterized in that, The ring-shaped gripper (1), pneumatic gripper disc (2), L-shaped ring-shaped positioning rod (3), and clamping base (4) are all made of stainless steel.

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