CN213411215U - Vortex disk finish machining positioning jig - Google Patents

Abstract

The utility model relates to a vortex dish finish machining positioning jig. The device comprises a base shell, an air cylinder, a sliding rod, elastic clamping claw seats, positioning clamping claws and pull rods, wherein the elastic clamping claw seats, the positioning clamping claws and the pull rods are the same in number; the elastic claw seats are fixed on the upper end face of the base shell and are uniformly distributed along the circumferential direction, and each elastic claw seat is correspondingly provided with a positioning claw; the pull rod penetrates through the upper end face of the base shell, the upper end of the pull rod is hinged with the elastic clamping jaw seat through the connecting shaft, the lower end of the pull rod is fixed on the sliding rod and can move up and down along with the sliding rod, and the elastic clamping jaw seat is driven to generate elastic deformation, so that the positioning clamping jaw is tightly held and presses a workpiece. The utility model discloses simple structure, low in manufacturing cost, work piece damage are little, the clamp force is adjustable, the location is reliable, the repeated positioning accuracy is high, the suitability is strong.

Description

Vortex disk finish machining positioning jig

Technical Field

The utility model belongs to the technical field of machining process equipment, in particular to vortex dish finish machining positioning jig.

Background

The scroll plate is a core component of the vehicle-mounted air-conditioning compressor and has micron-scale shape and position precision and size precision, and the contour precision and the rotation position precision of the scroll plate are main factors influencing the working efficiency of the compressor, so that the working efficiency of the vehicle-mounted air-conditioning compressor is improved, on one hand, the processing precision of the scroll contour of the scroll plate is improved, and on the other hand, the concentricity of the scroll center of the scroll plate and a scroll plate bearing hole is ensured.

At present, the clamping mode of vortex dish when adding man-hour has the excircle formula clamping of holding tightly, fluting formula clamping and rises three kinds of formula clamping of tight, and wherein hold the excircle formula clamping and adopt pneumatic or hydraulic jig to hold vortex dish lower part maximum diameter department tightly, and this kind of mode often only radial action of holding tightly and the action of axial non-pressure tightly, holds the power and has had little axial positioning unreliable, and holds the too big work piece processing deformation super poor that can lead to of power of holding tightly, can't guarantee higher machining precision. The slotting type clamping is to open a process groove at the proper peripheral side position of the scroll plate and then compress the scroll plate in the vertical direction, and the mode can reduce the overall strength of the scroll plate, and has high manufacturing cost and poor repeated positioning precision. The tensioning type clamping is to clamp the bearing hole in a hydraulic or mechanical tensioning mode, the clamping action is unreliable or deforms too much due to the fact that axial non-pressure action exists in the mode, the clamping bearing hole can damage the wall of the bearing hole, and in order to keep clamping force, the installation clearance of the bearing hole is small, quick replacement and assembly are not facilitated, and full-automatic feeding and discharging are difficult to achieve.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provide a vortex plate finish machining positioning jig with simple structure, low manufacturing cost, small workpiece damage, adjustable clamping force, reliable positioning, high repeated positioning precision, and can effectively meet the high precision machining requirement of the vortex plate profile,

in order to solve the technical problem, the utility model discloses a realize through following technical scheme: a vortex plate finish machining positioning jig comprises a base shell, an air cylinder, a sliding rod, elastic clamping claw seats, positioning clamping claws and pull rods, wherein the elastic clamping claw seats, the positioning clamping claws and the pull rods are the same in number; the elastic claw seats are fixed on the upper end face of the base shell and are uniformly distributed along the circumferential direction, and each elastic claw seat is correspondingly provided with a positioning claw; the pull rod penetrates through the upper end face of the base shell, the upper end of the pull rod is hinged with the elastic clamping jaw seat through the connecting shaft, the lower end of the pull rod is fixed on the sliding rod and can move up and down along with the sliding rod, and the elastic clamping jaw seat is driven to generate elastic deformation, so that the positioning clamping jaw is tightly held and presses a workpiece.

According to the vortex plate finish machining positioning jig, the base shell consists of an upper base and a lower base, and the upper base is fixedly connected with the lower base to form a shell with a cavity inside; the upper end surface of the upper base is provided with a workpiece positioning surface.

According to the positioning jig for finish machining of the scroll plate, the sliding guide hole is formed in the center of the upper base and can be a through hole or a blind hole; when the sliding guide hole is a through hole, a sealing cover is arranged on the upper part of the upper base corresponding to the sliding guide hole.

Above-mentioned vortex dish finish machining positioning jig, elasticity jack catch seat is made by elastic material.

According to the vortex plate finish machining positioning jig, the elastic clamping claw seat comprises a fixed end, a deformation end and a stress end, and the fixed end is fixed on the base shell; the stress end is connected with the pull rod, and the deformation end is pulled to generate elastic deformation under the driving of the pull rod, and small-amplitude pitching motion is performed around the deformation end.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model adopts the mode that the cylinder drives the elastic clamping jaw seat to generate elastic deformation, so that the positioning clamping jaw has radial holding action and axial pressing action, the radial and axial stress of the workpiece is uniform, the clamping and positioning are reliable, and the repeated positioning precision is high; the magnitude of the holding force can be controlled by adjusting the air pressure of the air cylinder, so that the workpiece is effectively prevented from being deformed too much or being clamped. Additionally, the utility model discloses elasticity jack catch seat deformation range is big, and work piece easy dismounting is favorable to realizing the full automatization and goes up unloading. The positioning clamping jaws can be replaced independently, the machining requirements of workpieces with different sizes can be met, the cost is low, and the application range is wide.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

Fig. 2 is a schematic diagram of the external structure of the present invention.

Fig. 3 is a schematic view of the elastic claw seat of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

With reference to fig. 1 and 2, the utility model discloses a vortex disk finish machining positioning jig comprises upper base 1, lower base 2, cylinder 3, slide bar 4, pull rod 5, elastic claw seat 6, location jack catch 7.

The upper base 1 and the lower base 2 are fixedly connected to form a base shell with a cavity inside. The cylinder 3 is fixed in the inner cavity of the base shell, the center of the upper base 1 is provided with a sliding guide hole, and the sliding rod 4 is installed on a piston rod of the cylinder 3 and can move up and down along the sliding guide hole under the action of the cylinder 3. In order to ensure the sealing of the inner cavity, a sealing cover 9 is provided at the upper portion of the upper base 1 corresponding to the sliding guide hole.

The elastic claw seats 6 are fixed on the upper end face of the upper base 1 and are evenly distributed along the circumferential direction of the upper base 1, and each elastic claw seat 6 is correspondingly provided with a positioning claw 7. The pull rod 5 penetrates through the upper base 1, the upper end of the pull rod 1 is hinged with the elastic clamping jaw seat 6 through the connecting shaft 8, the lower end of the pull rod 1 is fixed on the sliding rod 4 and can move up and down along with the sliding rod 4, and the elastic clamping jaw seat 6 is driven to generate elastic deformation, so that the positioning clamping jaw 7 is held tightly and presses a workpiece.

As shown in fig. 3, the elastic claw seat 6 is made of an elastic material, and includes a fixed end 61, a deformable end 62 and a stressed end 63, the fixed end 61 is used for being fixedly mounted with the upper base 1, the deformable end 62 is disposed between the fixed end 61 and the stressed end 63, the stressed end 63 is used for being coupled with the pull rod 5, and under the driving of the pull rod 5, on one hand, the deformable end 73 is pulled to generate elastic deformation, and on the other hand, the elastic claw seat makes a small-amplitude pitching motion around the deformable end 62.

The workpiece positioning surface is positioned at the central part of the upper end surface of the upper base 1, and when the vortex plate 10 is used, the vortex plate is placed on the workpiece positioning surface. In the initial state, the cylinder 3 is in a completely extending state, the elastic claw seat 6 is in a natural state, and a certain gap is formed between the excircle of the scroll plate 10 and the end face of the positioning claw 7. The cylinder 3 is ventilated, the sliding rod 4 and the pull rod 5 are sequentially driven to move downwards, the elastic clamping jaw seat 6 is pulled through the connecting shaft 8, the elastic clamping jaw seat 6 generates elastic deformation, the positioning clamping jaw 7 swings inwards and downwards around the deformation end 62 along with the stress end 63, and therefore the vortex disc 10 is tightly held and pressed downwards, and the vortex disc 10 is tightly attached to the workpiece positioning surface of the upper base 1.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can make various modifications according to the principle of the present invention. Therefore, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.

Claims (5)

1. A vortex plate finish machining positioning jig is characterized by comprising a base shell, an air cylinder, a sliding rod, elastic clamping claw seats, positioning clamping claws and pull rods, wherein the elastic clamping claw seats, the positioning clamping claws and the pull rods are the same in number; the elastic claw seats are fixed on the upper end face of the base shell and are uniformly distributed along the circumferential direction, and each elastic claw seat is correspondingly provided with a positioning claw; the pull rod penetrates through the upper end face of the base shell, the upper end of the pull rod is hinged with the elastic clamping jaw seat through the connecting shaft, the lower end of the pull rod is fixed on the sliding rod and can move up and down along with the sliding rod, and the elastic clamping jaw seat is driven to generate elastic deformation, so that the positioning clamping jaw is tightly held and presses a workpiece.

2. The positioning jig for finish machining of the scroll plate according to claim 1, wherein the base housing is composed of an upper base and a lower base, the upper base and the lower base are fixedly connected to form a housing with a cavity inside; the upper end surface of the upper base is provided with a workpiece positioning surface.

3. The scroll finish machining positioning jig according to claim 2, wherein the sliding guide hole is a through hole or a blind hole and is arranged at the center of the upper base; when the sliding guide hole is a through hole, a sealing cover is arranged on the upper part of the upper base corresponding to the sliding guide hole.

4. The scroll finishing positioning jig of claim 1, 2 or 3, wherein the elastic claw seat is made of an elastic material.

5. The scroll finish machining positioning jig of claim 4, wherein the elastic claw seat comprises a fixed end, a deformation end and a stress end, and the fixed end is fixed on the base shell; the stress end is connected with the pull rod, and the deformation end is pulled to generate elastic deformation under the driving of the pull rod, and small-amplitude pitching motion is performed around the deformation end.

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