A pneumatic multi-specification piston ring rapid positioning clamping device

Abstract

The utility model discloses a pneumatic formula multi-specification piston ring quick positioning clamping device, including pneumatic three jaw chuck, the pneumatic three jaw chuck is installed with the jaw, the inside screw thread of jaw is installed with spiral cover, and spiral cover is matched with knob. The jaw includes claw body, and the inside of claw body is equipped with bolt, and one end of bolt is fixedly connected with claw body. Spiral cover includes spiral cover body, and spiral cover body screw thread is installed on the bolt, and spiral cover body is inserted in claw body, and the inside of spiral cover body is provided with six prism grooves. The head of spiral cover body is provided with antiskid line outward. The knob includes six prism insert ring, and when the target piston ring is encountered with the diameter oversize specification, the knob is clamped in spiral cover, and the spiral cover is twisted outward by manual operation knob, makes spiral cover partial outward stretch, and the target piston ring is placed between the spiral cover that stretches, and then drives pneumatic three jaw chuck to clamp and fix, improves the specification amount of outer clamping matching.

Description

Technical Field

[0001] This utility model belongs to the technical field of piston ring processing equipment, and in particular relates to a pneumatic multi-specification piston ring quick positioning and clamping device. Background Technology

[0002] A pneumatic three-jaw centering chuck is an automated device that uses compressed air to power three jaws evenly distributed at 120° angles, which move synchronously radially to achieve rapid centering and clamping of a workpiece. It utilizes a cylinder-driven rack-and-pinion or conical linkage mechanism to move the jaws synchronously closer to or further from the center, achieving high-precision centering with the workpiece's inner or outer circle as a reference. The centering accuracy can reach 0.005-0.02mm, and the single-cycle (release-clamp) time is typically ≤1 second.

[0003] When conventional pneumatic three-jaw centering chucks clamp outwards, they can match more specifications of annular piston rings through the protruding stepped structure. However, when machining the inside of the ring, clamping from the outside inwards, they can only rely on the inner end of the jaws for clamping. This results in the conventional pneumatic three-jaw centering chucks having a relatively small range of compatible specifications when clamping from the outside inwards.

[0004] To address this issue, we propose a pneumatic multi-specification piston ring quick positioning and clamping device. Utility Model Content

[0005] The purpose of this invention is to solve the problem that conventional pneumatic three-jaw centering clamps have a limited range of matching specifications when clamping from the outside in, and to propose a pneumatic multi-specification piston ring quick positioning and clamping device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pneumatic multi-specification piston ring quick positioning and clamping device includes a pneumatic three-jaw chuck, on which jaws are mounted. A spiral sleeve is threaded onto the internal threads of each jaw, and a knob is fitted onto the spiral sleeve. When clamping a target piston ring with an excessively large diameter, the knob is engaged within the spiral sleeve, and the knob is manually operated to turn the spiral sleeve outward, causing a portion of the spiral sleeve to extend outward. The target piston ring is placed between the extended spiral sleeves, and then the pneumatic three-jaw chuck is driven to clamp and fix it, improving the range of sizes that can be matched with the external clamping.

[0007] Preferably, the gripper includes a gripper body, and a bolt is provided inside the gripper body, with one end of the bolt fixedly connected to the gripper body. The bolt facilitates the threaded installation of the spiral sleeve.

[0008] Preferably, the spiral sleeve includes a spiral sleeve body, which is threaded onto the bolt and movably inserted into the claw body. The spiral sleeve body has a hexagonal groove inside. Inserting a knob into the hexagonal groove and turning the knob causes the hexagonal groove to act on the spiral sleeve body, allowing the spiral sleeve to extend or retract along the bolt spirally, facilitating its insertion or removal as needed.

[0009] Preferably, the outer periphery of the head of the spiral sleeve is provided with anti-slip texture. The anti-slip texture increases the friction between the spiral sleeve and the target piston ring.

[0010] Preferably, the knob includes a hexagonal insert ring that is fitted into a hexagonal slot, and a rotating ring is fixedly connected to one end of the hexagonal insert ring. The hexagonal insert ring is inserted into the hexagonal slot, and the rotating ring increases the length of the lever for turning. Manual operation of the rotating ring drives the hexagonal insert ring to rotate, which in turn drives the spiral sleeve to rotate through the hexagonal slot, facilitating manual adjustment of the spiral sleeve's extension or retraction.

[0011] Preferably, one end of the hexagonal insert is fixedly connected to a guide ring. The guide ring guides the hexagonal insert into the hexagonal groove, and simultaneously guides the hexagonal insert onto the bolt.

[0012] In summary, the technical effects and advantages of this utility model are as follows: 1. When clamping the target piston ring inward, if the diameter is too large, lock the knob inside the spiral sleeve, manually operate the knob to turn the spiral sleeve outward, so that the spiral sleeve extends outward in part, place the target piston ring between the extended spiral sleeve, and then drive the pneumatic three-jaw chuck to clamp and fix it, thereby improving the external clamping matching specification.

[0013] 2. Insert the knob into the hexagonal slot and turn the knob. The knob acts on the hexagonal slot, which in turn acts on the hexagonal sleeve, causing the hexagonal sleeve to extend or retract along the bolt helix. This allows you to easily screw the hexagonal sleeve in or out as needed.

[0014] 3. Insert the hexagonal insert ring into the hexagonal groove. Use the rotating ring to increase the length of the screwing lever. Manually operate the rotating ring to drive the hexagonal insert ring to rotate. The hexagonal insert ring acts on the hexagonal groove to drive the spiral sleeve to rotate, making it convenient to manually adjust the extension or retraction of the spiral sleeve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the gripper structure of this utility model; Figure 3 This is a schematic diagram of the spiral sleeve structure of this utility model; Figure 4 This is a schematic diagram of the knob structure of this utility model.

[0016] In the diagram: 1. Pneumatic three-jaw chuck; 2. Jaw; 3. Spiral sleeve; 4. Knob; 21. Jaw body; 22. Bolt; 31. Spiral sleeve body; 32. Hexagonal groove; 41. Hexagonal insert ring; 42. Guide ring; 43. Rotary ring. Detailed Implementation

[0017] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0018] like Figure 1 As shown, a pneumatic multi-specification piston ring quick positioning and clamping device includes a pneumatic three-jaw chuck 1, a jaw 2 mounted on the pneumatic three-jaw chuck 1, a spiral sleeve 3 mounted on the internal thread of the jaw 2, and a knob 4 matched with the spiral sleeve 3.

[0019] like Figure 1 and 2 As shown, the gripper 2 includes a gripper body 21, and a bolt 22 is provided inside the gripper body 21. One end of the bolt 22 is fixedly connected to the gripper body 21. The bolt 22 is used for threaded installation of the screw sleeve 3.

[0020] like Figure 1 and 3 As shown, the spiral sleeve 3 includes a spiral sleeve body 31, which is threaded onto the bolt 22. The spiral sleeve body 31 is movably inserted into the claw body 21, and a hexagonal groove 32 is formed inside the spiral sleeve body 31. When the knob 4 is inserted into the hexagonal groove 32 and the knob 4 is turned, the knob 4 acts on the hexagonal groove 32, which in turn acts on the spiral sleeve body 31, causing the spiral sleeve body 31 to spirally extend or retract along the bolt 22.

[0021] like Figure 3 As shown, the outer periphery of the head of the spiral sleeve 31 is provided with anti-slip texture. The anti-slip texture increases the friction between the spiral sleeve 3 and the target piston ring.

[0022] like Figure 1 and 4 As shown, the knob 4 includes a hexagonal insert ring 41, which is matched with a hexagonal slot 32. One end of the hexagonal insert ring 41 is fixedly connected to a rotating ring 43. The hexagonal insert ring 41 is inserted into the hexagonal slot 32, and the rotating ring 43 increases the length of the turning lever. The rotating ring 43 is manually operated to drive the hexagonal insert ring 41 to rotate, and the hexagonal insert ring 41 acts on the hexagonal slot 32 to drive the spiral sleeve 31 to rotate.

[0023] like Figure 4As shown, a guide ring 42 is fixedly connected to one end of the hexagonal insert ring 41. The guide ring 42 guides the hexagonal insert ring 41 to be inserted into the hexagonal groove 32, and at the same time guides the hexagonal insert ring 41 to be fitted onto the bolt 22.

[0024] Working principle: When the target piston ring is clamped inward and the diameter is too large, the knob 4 is locked in the spiral sleeve 3. The knob 4 is manually operated to turn the spiral sleeve 3 outward, so that the spiral sleeve 3 extends outward in part. The target piston ring is placed between the extended spiral sleeves 3, and then the pneumatic three-jaw chuck 1 is driven to clamp and fix it.

[0025] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0026] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A pneumatic multi-specification piston ring quick positioning and clamping device, comprising a pneumatic three-jaw chuck (1), wherein jaws (2) are mounted on the pneumatic three-jaw chuck (1), characterized in that: The internal thread of the gripper (2) is fitted with a spiral sleeve (3), and the spiral sleeve (3) is matched with a knob (4).

2. The pneumatic multi-specification piston ring quick positioning and clamping device according to claim 1, characterized in that: The gripper (2) includes a gripper body (21), and a bolt (22) is provided inside the gripper body (21). One end of the bolt (22) is fixedly connected to the gripper body (21).

3. The pneumatic multi-specification piston ring quick positioning and clamping device according to claim 2, characterized in that: The spiral sleeve (3) includes a spiral sleeve body (31), which is threaded onto a bolt (22). The spiral sleeve body (31) is movably inserted into a claw body (21), and a hexagonal groove (32) is provided inside the spiral sleeve body (31).

4. The pneumatic multi-specification piston ring quick positioning and clamping device according to claim 3, characterized in that: The outer periphery of the head of the spiral sleeve (31) is provided with anti-slip texture.

5. The pneumatic multi-specification piston ring quick positioning and clamping device according to claim 3, characterized in that: The knob (4) includes a hexagonal insert ring (41), which is matched with a hexagonal slot (32). One end of the hexagonal insert ring (41) is fixedly connected to a rotating ring (43).

6. The pneumatic multi-specification piston ring quick positioning and clamping device according to claim 5, characterized in that: One end of the hexagonal insert (41) is fixedly connected to a guide ring (42).

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