Work fixture for machining vortex piece

Abstract

The utility model discloses a work fixture for machining a vortex piece, and belongs to the technical field of rough machining of large vortex pieces. The tool clamp is composed of elastic clamping jaws, a pull-down oil cylinder and a backer, the pull-down oil cylinder is arranged in the backer, the three elastic clamping jaws are arranged on the outer edge of the backer in a herringbone shape, and large piece vortexes are placed on the upper end face of the backer and located on the inner sides of the three elastic clamping jaws. The tool solves the problem that an existing tool is not universal, the large-piece vortex is placed on the upper end face of the backer, the pull-down oil cylinder is used for providing driving force, the upper end face layer of the backer and the large-piece vortex are pulled to move downwards, then the elastic clamping jaws on the outer side are made to get close to the inner side and be tightened, the large-piece vortex is held tightly, and therefore the large-piece vortex is clamped tightly. Then carrying out subsequent processing; therefore, the tool clamp does not need a chuck, the problem that the stroke of a machine tool spindle is not enough due to the fact that a product is placed too high is effectively solved, and the problem that machining equipment is not universal is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to big piece scroll rough machining technical field especially relates to a scroll piece processing's frock clamp. BACKGROUND

[0002] Scroll parts in automobile parts mainly refer to the key components of scroll compressor, including: dynamic scroll and static scroll; these components play a vital role in the whole process of gas compression of scroll compressor, and the design and manufacturing quality of scroll directly affect the performance and efficiency of the compressor; the scroll compressor is characterized by high efficiency and energy saving, and compared with the traditional piston compressor, the volumetric efficiency is increased by more than 30%, and the scroll compressor is stable, low noise and vibration, and reduces the influence on the environment; the material of scroll is usually aluminum alloy, because it has the advantages of low density, high strength, good conductivity, heat conduction and corrosion resistance.

[0003] In the prior art, the ordinary scroll is usually processed by first mounting a chuck on the machine tool workbench, then mounting a backrest and a clamping jaw on the chuck, then placing the product on the backrest and clamping it through the clamping jaw, and then processing; however, the scroll part is relatively high, and the height of the backrest and the chuck itself often causes the travel of the machine tool spindle to be insufficient. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a scroll piece processing's frock clamp, with the advantages of low frock cost and wide general range, effectively solves the problem of non-universal processing equipment and high frock cost through optimizing the clamping mode and processing mode, controls the investment cost and processing cost, and solves the problem in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A scroll piece processing frock clamp, comprising: a frock clamp composed of elastic clamping jaws, a downward oil cylinder and a backrest, a downward oil cylinder is arranged at the center of the backrest, the elastic clamping jaws are arranged in a herringbone shape at the outer edge of the backrest, and a large scroll is placed on the upper end surface of the backrest and inside the three elastic clamping jaws, wherein the downward oil cylinder is used to pull the large scroll downward, and the elastic clamping jaws are used to clamp and fix the outer edge of the large scroll.

[0007] Preferably, the inside of the backrest is hollow, the upper end surface of the backrest is movably connected with the port of the upper end surface, and the outer diameter of the upper end surface of the backrest is matched with the inner diameter of the port of the upper end surface.

[0008] Preferably, the upper end surface of the backrest is provided with a scroll ring matched with the large scroll, and the bottom of the upper end surface of the backrest is connected with the top end of the downward oil cylinder.

[0009] Preferably, a base is provided below the support, and the upper surface of the base is connected to the bottom of the three elastic claws respectively.

[0010] Preferably, both the support and the base below are circular in shape, the diameter of the base is larger than the diameter of the support, and the upper surface of the base is provided with screw holes.

[0011] Preferably, a passage groove is provided on the outer side of the backing, between every two elastic claws.

[0012] Preferably, the upper surface of the elastic claw is higher than the upper surface of the backing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model discloses a tooling fixture for machining scroll parts. By placing a large scroll part on the upper surface of a support, a downward-pulling hydraulic cylinder provides driving force, thereby pulling the upper surface of the support and the large scroll part downward. This causes the outer elastic jaws to move inward and tighten, thus holding the large scroll part tightly for subsequent machining. This tooling fixture eliminates the need for a chuck, effectively solving the problem of insufficient spindle travel caused by placing the product too high. At the same time, it effectively optimizes the clamping and machining methods, solving the drawbacks of non-universal machining equipment and high tooling costs, while controlling investment and machining costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a bottom view of the overall structure of this utility model;

[0017] Figure 3 This is a top view of the overall structure of this utility model;

[0018] Figure 4 This is a side view of the overall structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the cross-section of the tooling fixture of this utility model.

[0020] In the diagram: 1. Elastic chuck; 2. Pull-down hydraulic cylinder; 3. Backing; 4. Large vortex. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the issue in existing technologies where machining ordinary scroll components typically involves first mounting a chuck on the machine tool table, then installing a retainer 3 and jaws on the chuck, placing the product on the retainer 3 and clamping it with the jaws before machining; however, large scroll components, due to their inherent height, combined with the height of the retainer 3 and the chuck itself, often result in insufficient spindle travel. Please refer to [link to relevant documentation]. Figures 1-5 This embodiment provides the following technical solution:

[0023] A tooling fixture for machining a scroll component includes: an integral fixture structure consisting of three elastic jaws 1, a pull-down cylinder 2, and a support 3. The support 3 is hollow to accommodate the pull-down cylinder 2. The upper end face of the support 3 is movably connected to its port, allowing the pull-down cylinder 2 to pull the upper end face downwards, moving the large scroll component 4 placed above it. Furthermore, the outer diameter of the upper end face of the support 3 matches the inner diameter of its port, ensuring a tight fit between the upper end face of the support 3 and the inner side of the port, preventing edge contact. The gaps at the edges are too large, making it easy for parts to fall off and affecting the normal use of the tooling fixture; a pull-down cylinder 2 is set in the center of the interior of the support 3, and the bottom of the upper surface of the support 3 is connected to the top of the pull-down cylinder 2. The pull-down cylinder 2 is mainly used to provide driving force for the tooling fixture, so as to pull the large vortex 4 down; there are three elastic claws 1, which are arranged in a V-shape on the outer edge of the support 3, and the upper surface of the elastic claws 1 is higher than the upper surface of the support 3; a base is set at the bottom of the support 3, and the upper surface of the base is connected to the bottom of the three elastic claws 1 respectively. Connection; the elastic jaw 1 combines a vertical and a horizontal plane. The bottom of the vertical plane is fixed to the base below the support 3, and the top of the vertical plane is connected to the horizontal plane through an elastic component, including but not limited to: a high-elasticity spring; a passage groove is provided on the outer side of the support 3, between every two elastic jaws 1. The passage groove not only reduces the weight of the overall structure of the tooling fixture and reduces the manufacturing cost of the support 3, but also releases the gas inside the support 3, ensuring air circulation inside the support 3; the shape of the support 3 and the base below are both... The base is circular, with a diameter larger than that of the support 3. The upper surface of the base is surrounded by screw holes, which are mainly used to fix the tooling fixture to the required processing position by screws of matching size. A large vortex 4 is placed on the upper surface of the support 3, inside the three elastic jaws 1. The pull-down cylinder 2 is used to pull the large vortex 4 down, and the elastic jaws 1 are used to clamp and fix the outer edge of the large vortex 4. The upper surface of the support 3 is provided with a vortex ring that matches the large vortex 4 to ensure the stability of the large vortex 4.

[0024] Specifically, by placing the large scroll 4 on the upper surface of the support 3 and matching the protrusions on the surface of the large scroll 4 with the scroll rings on the surface of the support 3, the pull-down cylinder 2 is activated to provide driving force. The air rod of the pull-down cylinder 2 pulls the upper surface of the support 3 and the large scroll 4 downward, thereby causing the outer elastic jaw 1 to move inward and tighten, thus holding the large scroll 4 tightly and locking it onto the support 3 for subsequent processing. Based on this, it can be seen that the tooling fixture does not require a chuck, effectively solving the problem of insufficient spindle travel of the machine tool due to the product being placed too high, and thus solving the drawback of non-universal processing equipment.

[0025] The beneficial effects achieved by the above are as follows: Through the above operations, the tooling fixture does not require a chuck, effectively solving the problem of insufficient spindle travel of the machine tool due to the product being placed too high; it effectively optimizes the clamping and processing methods, solves the drawbacks of non-universal processing equipment and high tooling costs, and controls investment and processing costs at the same time.

[0026] Working principle: By placing the large vortex 4 on the upper surface of the backing 3, the driving force provided by the pull-down cylinder 2 is used to pull the upper surface of the backing 3 and the large vortex 4 downward, thereby causing the outer elastic claw 1 to move inward and tighten, thus holding the large vortex 4 tightly, and then proceeding with subsequent processing. This solves the drawbacks of non-universal processing equipment and high tooling costs.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling fixture for machining a scroll member, comprising: The tool fixture is composed of elastic clamping jaws (1), a lower pulling oil cylinder (2) and a backrest (3), characterized in that the lower pulling oil cylinder (2) is arranged at the center of the backrest (3), the elastic clamping jaws (1) are three in number and arranged in a herringbone shape at the outer edge of the backrest (3), a large scroll (4) is arranged on the upper end surface of the backrest (3) and located at the inner side of the three elastic clamping jaws (1), wherein the lower pulling oil cylinder (2) is used for pulling the large scroll (4) to move downward, and the elastic clamping jaws (1) are used for clamping and fixing the outer edge of the large scroll (4).

2. The tooling fixture for machining scroll members according to claim 1, wherein: The inside of the backrest (3) is hollow, the upper end surface of the backrest (3) is movably connected with the port of the upper end surface, and the outer diameter of the upper end surface of the backrest (3) is matched with the inner diameter of the port of the upper end surface.

3. The tooling fixture of claim 1, wherein: The upper end surface of the backrest (3) is provided with a scroll ring matched with the large scroll (4), and the bottom of the upper end surface of the backrest (3) is connected with the top end of the lower pulling oil cylinder (2).

4. The tooling fixture of claim 1, wherein: The backrest (3) is provided with a base below, and the upper end surface of the base is connected with the bottom of the three elastic clamping jaws (1) respectively.

5. The tooling fixture of claim 1, wherein: The shape of the backrest (3) and the base below is circular, the diameter of the base is larger than that of the backrest (3), and the upper end surface of the base is provided with a screw hole.

6. The tooling fixture for machining scroll members of claim 1 wherein: The outer side of the backrest (3) and between every two elastic clamping jaws (1) is provided with a passing groove.

7. The tooling fixture of claim 1, wherein: The upper end surface of the elastic clamping jaw (1) is higher than the upper end surface of the backrest (3).

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