An auxiliary positioning device for a compressor crankshaft

Abstract

The utility model provides a kind of auxiliary positioning device for compressor crankshaft, including connecting seat, double-station cylinder is equipped on the connecting seat, connecting block is connected on the cylinder stem of double-station cylinder, connecting block is connected with standard positioning block, and standard positioning block includes block body, and the top surface of block body is equipped with the arc concave position matched with compressor crankshaft outer wall.The utility model is set, and when double-station cylinder extends, standard positioning block is lifted, compressor crankshaft is placed on the arc concave position of standard positioning block at this time, and one end is resisted on the side of needle mechanism, the axis of compressor crankshaft is aligned with the needle mechanism of the other side at this time, processing equipment shield door is closed, equipment is started, and the needle mechanism of the other side can be moved and tightly in the other end of compressor crankshaft, so that clamping can be quickly completed, work efficiency is improved, and when compressor crankshaft is placed into equipment, each component in equipment does not act, and safety is higher.

Description

Technical Field

[0001] This utility model belongs to the field of compressor crankshaft processing, and specifically relates to an auxiliary positioning device for compressor crankshaft. Background Technology

[0002] The compressor crankshaft is a long shaft part. During machining, both ends need to be fixed with ejector pin mechanisms before processing. The specific operation is as follows: First, the operator places one end of the compressor crankshaft against an ejector pin mechanism. Then, the operator gradually moves another ejector pin mechanism closer until the other end of the compressor crankshaft is clamped, thus completing the clamping process. The shielding door of the machining equipment is then closed, and machining begins. The above machining method has the following main problems: During clamping, the operator needs to hold the compressor crankshaft and gradually move the other ejector pin mechanism closer, which is time-consuming, labor-intensive, and has low safety. Utility Model Content

[0003] To overcome the shortcomings and problems of the existing technology, this utility model provides an auxiliary positioning device for compressor crankshaft, which can assist in the positioning of compressor crankshaft during the clamping process, improve work efficiency, and ensure greater safety.

[0004] This utility model is achieved through the following technical solution:

[0005] An auxiliary positioning device for a compressor crankshaft includes a connecting seat, on which a dual-position cylinder is provided. A connecting block is connected to the cylinder rod of the dual-position cylinder, and a standard positioning block is connected to the connecting block. The standard positioning block includes a block body, and the top surface of the block body is provided with an arc-shaped recess that matches the outer wall of the compressor crankshaft.

[0006] The block has fixed-length posts at the four corners of its bottom surface, and the connecting block has positioning holes that match the fixed-length posts. The fixed-length posts are inserted into the positioning holes.

[0007] The bottom end of the fixed-length column is provided with a tapered part, and the bottom of the positioning hole is provided with a tapered hole that matches the tapered part.

[0008] The block has upper support ears on both sides, and the connecting block has lower support ears on both sides. The upper and lower support ears are arranged correspondingly and are fixed together by bolt and nut assembly.

[0009] The connecting seat is provided with a positioning step, and the bottom surface of the dual-position cylinder abuts against the positioning step.

[0010] The standard positioning block comes in various specifications, with different lengths of the fixed-length column and different curvatures of the arc-shaped recess.

[0011] When the dual-position cylinder of this invention extends, it lifts the standard positioning block. At this time, the compressor crankshaft is placed on the arc-shaped recess of the standard positioning block, with one end abutting against the ejector mechanism on one side. The axis of the compressor crankshaft is aligned with the ejector mechanism on the other side. The shielding door of the processing equipment is closed, and the equipment is started. The ejector mechanism on the other side can move and press against the other end of the compressor crankshaft, thereby quickly completing the clamping and improving work efficiency. When the compressor crankshaft is placed into the equipment, the components in the equipment do not move, which enhances safety. The fixed-length column matches the positioning hole, ensuring that the horizontal height of the block is at the set height, thereby ensuring the accurate positioning height of the compressor crankshaft and ensuring its concentricity with the ejector mechanism during clamping. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the connection structure between the dual-position cylinder and the connecting block in this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the standard positioning block in this utility model;

[0015] Figure 4 This is a schematic diagram of the working structure of this utility model.

[0016] In the diagram: 1-connecting seat, 11-positioning step, 2-dual-position cylinder, 3-connecting block, 31-positioning hole, 311-conical part, 32-lower support lug, 4-standard positioning block, 41-block body, 42-arc-shaped recess, 43-length column, 431-conical part, 44-upper support lug, 5-bolt and nut assembly, 6-ejector mechanism, 7-compressor crankshaft. Detailed Implementation

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, an auxiliary positioning device for a compressor crankshaft includes a connecting seat 1, on which a dual-position cylinder 2 is mounted. The connecting seat 1 is used to fix the dual-position cylinder 2, thereby fixing the dual-position cylinder 2 in the compressor crankshaft machining equipment. The connecting seat 1 is provided with a positioning step 11, and the bottom surface of the dual-position cylinder 2 abuts against the positioning step 11. This structure ensures the reliable height position of the dual-position cylinder 2 and avoids affecting subsequent positioning inaccuracies.

[0019] A connecting block 3 is connected to the cylinder rod of the dual-position cylinder 2. A standard positioning block 4 is connected to the connecting block 3. The extension and retraction of the dual-position cylinder 2 drives the connecting block 3 to rise and fall, thereby driving the standard positioning block 4 to rise and fall.

[0020] The standard positioning system comprises four blocks, including a block 41. The top surface of block 41 has an arc-shaped recess 42 that matches the outer wall of the compressor crankshaft, facilitating crankshaft positioning. Each of the four corners of the bottom surface of block 41 has a length-fixing post 43. The connecting block 3 has positioning holes 31 that match the length-fixing posts 43. The length-fixing posts 43 are inserted into the positioning holes 31. This structure facilitates the positioning of the height and horizontal position of block 41, ensuring the arc-shaped recess 42 is in the preset position, thus guaranteeing accurate positioning of the compressor crankshaft. The bottom end of the length-fixing post 43 has a tapered portion 431. The bottom of the positioning hole 31 has a tapered hole portion 311 that matches the tapered portion 431. The tapered portion 431 abuts against the tapered hole portion 311, ensuring the length-fixing post 43 is properly inserted into the positioning hole 31, preventing inaccurate positioning due to improper insertion.

[0021] The standard positioning block 4 comes in various specifications. The length of the fixed column 43 and the curvature of the arc-shaped recess 42 of the standard positioning block 4 are different for different specifications, so as to meet the needs of compressor crankshafts of different specifications. For compressor crankshafts of different specifications, it is only necessary to replace the standard positioning block 4 that matches it.

[0022] Both sides of the block 41 are provided with upper support ears 44, and both sides of the connecting block 3 are provided with lower support ears 32. The upper support ears 44 and the lower support ears 32 are arranged correspondingly, and the upper support ears 44 and the lower support ears 32 are fixed together by bolt and nut group 5. This structure facilitates the locking and fixing of the connecting block 3 and the standard positioning 4, ensures that the two are installed in place, and prevents loosening during use.

[0023] The working process of this utility model: combining Figure 4 As shown, when clamping the compressor crankshaft 7, the cylinder rod of the dual-position cylinder 2 extends, so that the standard positioning block 4 is in the preset position. At this time, the compressor crankshaft is placed in the arc-shaped recess 42, and one end of the compressor crankshaft is pressed against a pin mechanism 6. At this time, the axis of the compressor crankshaft 7 is aligned with the pin mechanism 6 on the other side. The processing equipment shielding door is closed and the equipment is started. The pin mechanism on the other side can move and press against the other end of the compressor crankshaft 7, so that the clamping can be completed quickly. After the clamping is completed, the cylinder rod of the dual-position cylinder 2 retracts, the standard positioning block 4 descends, and there is no interference with the processing of the compressor crankshaft 7.

[0024] The above embodiments are preferred implementations of this utility model and are not intended to limit this utility model. Any obvious substitutions are within the protection scope of this utility model without departing from its inventive concept.

Claims

1. An auxiliary positioning device for a compressor crankshaft, comprising a connecting seat (1), characterized in that: The connecting seat is provided with a dual-position cylinder (2), and a connecting block (3) is connected to the cylinder rod of the dual-position cylinder. The connecting block is connected to a standard positioning block (4). The standard positioning block includes a block body (41), and the top surface of the block body is provided with an arc-shaped recess (42) that matches the outer wall of the compressor crankshaft.

2. Auxiliary positioning device for compressor crankshafts according to claim 1, characterized in that: The block (41) has fixed-length columns (43) at the four corners of its bottom surface, and the connecting block (3) has positioning holes (31) that match the fixed-length columns. The fixed-length columns are inserted into the positioning holes.

3. Auxiliary positioning device for compressor crankshafts according to claim 2, characterized in that: The bottom end of the fixed-length column (43) is provided with a cone (431), and the bottom of the positioning hole (31) is provided with a cone hole (311) that matches the cone.

4. Auxiliary positioning device for compressor crankshafts according to claim 3, characterized in that: The block (41) has upper support ears (44) on both sides, and the connecting block (3) has lower support ears (32) on both sides. The upper and lower support ears are arranged correspondingly, and the upper and lower support ears are fixed together by a bolt and nut assembly (5).

5. The auxiliary positioning device for a compressor crankshaft of claim 1, wherein: The connecting seat (1) is provided with a positioning step (11), and the bottom surface of the dual-position cylinder (2) abuts against the positioning step.

6. Auxiliary positioning device for compressor crankshafts according to any of claims 2-4, characterized in that: The standard positioning block (4) has various specifications, and the length of the fixed column (43) and the curvature of the arc-shaped concave part (42) of the standard positioning block of different specifications are different.

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