Scroll plate milling tool

Abstract

The utility model discloses a scroll plate milling tool which comprises a clamp used for clamping and fixing the bottom of a scroll plate; the positioner is positioned on one side of the clamp and is used for positioning the molded line tail part of the scroll plate; and the controller is used for controlling the clamp to clamp or loosen the scroll plate. Before the scroll plate is clamped by the clamp, the tail part of the molded line of the scroll plate is positioned by the positioner, and the action of clamping or loosening the bottom of the scroll plate by the clamp is controlled by the controller, so that the precise installation of the scroll plate is ensured, and the precision of subsequent milling operation is ensured.

Description

Technical Field

[0001] The utility model relates to a scroll compressor production technology, in particular to a scroll disk milling tool. Background Art

[0002] The scroll compressor is a compressor with compressible volume, which is composed of a fixed involute scroll and an eccentrically rotating and translating involute scroll. The most important component is the scroll. The compressor has high requirements for the precision of its scroll. The processing error must be kept within a reasonable range to produce qualified scrolls.

[0003] After the scroll disk is cast, the blank is obtained. The blank needs to be milled to form the scroll structure surface. Most scroll disks have positioning holes at the bottom to match the positioning pins on the positioning tooling. However, there are also cases where positioning holes cannot be set or are not needed. For example, in order to ensure the mechanical properties and stability of the scroll disk under harsh conditions such as high temperature and high pressure, positioning holes that affect the overall performance will be avoided at the bottom. In the case where there is no positioning hole at the bottom of the scroll disk, the position of the scroll disk cannot be accurately controlled during milling, and thus the milling operation of the precise scroll structure surface cannot be completed. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to solve the problem of rapid installation of the scroll disk milling operation under the special condition that there is no positioning hole at the bottom of the scroll disk, so as to ensure the accurate milling operation of the scroll disk.

[0005] The utility model adopts the following technical solutions:

[0006] A scroll disc milling tool, comprising:

[0007] A clamp, which is used to clamp the bottom of the fixed scroll plate;

[0008] A positioner, which is located on one side of the fixture and is used to position the tail of the scroll profile;

[0009] The controller is used to control the fixture to clamp or loosen the scroll plate.

[0010] Before the fixture clamps the scroll disk, the tail of the scroll disk's profile is positioned using a positioner, and the controller controls the fixture's clamping or loosening of the scroll disk's bottom to ensure accurate installation of the scroll disk and subsequent milling operations.

[0011] In a preferred solution, the fixtures and positioners are provided in multiple numbers and both are arranged correspondingly, multiple fixtures are arranged in series or in parallel, multiple positioners are arranged in series or in parallel, and positioners and fixtures corresponding in position are arranged in series. Multiple positioners and multiple fixtures are preferably arranged in parallel, and by arranging in parallel, even if one group fails, it will not affect the normal operation of the remaining groups.

[0012] Preferably, the positioner is provided with two positioning ends, which are arranged up and down, and the positioning ends can be selectively extended and retracted, the extension of the positioning ends and the loosening action of the clamp are performed synchronously, and the retraction of the positioning ends and the clamping action of the clamp are performed synchronously.

[0013] In a preferred embodiment, the positioner is a pneumatic cylinder, an oil cylinder or an electric push rod, preferably a pneumatic cylinder.

[0014] Preferably, the controller is provided with an operating end, which can selectively control the clamp to perform a clamping action or a loosening action.

[0015] In a preferred embodiment, the controller is a solenoid valve or a switching valve with an operating handle, preferably a manual valve.

[0016] The preferred solution further includes a bottom plate, on which a guide groove 1 is provided, and the clamp is installed in the guide groove 1 via T-bolts and is connected and fixed to the bottom plate.

[0017] In a preferred solution, the fixture and positioner are provided in multiple numbers and both are arranged correspondingly, multiple fixtures are arranged in series or in parallel, preferably in parallel, and connected by air pipelines, multiple positioners are arranged in series or in parallel, preferably in parallel, and connected by air pipelines, and positioners and fixtures corresponding in position are arranged in series. To increase the amount of clamping at one time, only one tool setting operation is required, and the tool is controlled by the CNC system to process multiple scroll discs in sequence, without the need to clamp them one by one and to perform tool setting operations for each clamping.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] A positioner is designed to locate the tail of the scroll profile, and the circumferential angle of the position is adjusted before the fixture clamps the scroll, thereby ensuring the accuracy of the angle and position of the tail of the profile. The controller controls the fixture to clamp or loosen the bottom of the scroll, thereby ensuring the accuracy of subsequent milling operations. This solution is suitable for situations where there is no positioning hole at the bottom of the scroll. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the overall structure of the utility model;

[0021] Figure 2It is a top view of the initial positioning structure and the position of the clamp of the utility model;

[0022] Figure 3 It is a cross-sectional view of the initial positioning structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the control gas circuit of the fixture, positioner and controller of the utility model;

[0024] Figure 5 It is the position distribution diagram of the locator of the utility model;

[0025] Figure 6 This is a structural diagram of the initial positioning structure of the utility model;

[0026] Figure 7 It is an enlarged view of the end structure of the positioning end of the utility model.

[0027] In the figure: 1. fixture; 11. positioning plate; 111. lower plate; 112. upper plate; 113. guide groove 2; 2. scroll plate; 3. positioner; 31. positioning end; 4. controller; 41. operating end; 5. bottom plate; 51. guide groove 1. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Embodiment 1, a scroll disc milling tool, comprising:

[0031] A clamp 1, which is preferably a pneumatic chuck, and is used to clamp the bottom of the fixed scroll plate 2;

[0032] Positioner 3, wherein positioner 3 is preferably a cylinder, and may also be a hydraulic cylinder or an electric push rod. Positioner 3 is located on one side of the fixture 1 and is used to position the tail of the profile of the scroll 2;

[0033] like Figure 5As shown, the positioner 3 can be provided with two positioning ends 31, and the two positioning ends 31 are arranged up and down. The positioning ends 31 can be selectively extended and retracted, and the extension of the positioning ends 31 and the loosening action of the clamp 1 are performed synchronously, and the retraction of the positioning ends 31 and the clamping action of the clamp 1 are performed synchronously.

[0034] Controller 4, controller 4 is used to control the clamp 1 to clamp or loosen the scroll disk 2, controller 4 is a solenoid valve or a switching valve with an operating handle, preferably a switching valve with an operating handle, controller 4 is provided with an operating end 41, the operating handle is the operating end 41 and has three operating points, respectively controlling the three points of air intake, exhaust and cutting off the air path of the clamp 1, the operating end 41 can selectively control the clamp 1 to clamp or loosen.

[0035] In this embodiment, the clamp 1 and the positioner 3 are selected as one, and the clamping claws of the clamp 1 are controlled by the operating end 41 to clamp or loosen the outer circle of the bottom of the scroll.

[0036] When in use, the positioning end 31 is in an extended state, and the scroll disk is placed in the middle of the fixture 1. By rotating the scroll disk, the tail of the scroll disk's profile line is fitted onto the positioning end 31. The clamping claws of the fixture 1 are adjusted through the operating end 41 to clamp the outer circle of the bottom of the scroll disk. At the same time, the positioning end 31 is recovered into the positioner 3 during the clamping action to prevent the tool from being blocked when milling the profile surface or the base circle surface. When the processing is completed, the operating end 41 is adjusted in the reverse direction, the positioning end 31 is extended outward, and the clamping claws of the fixture 1 move in the reverse direction to loosen the scroll disk. Figure 7 As shown, the end of the positioning end 31 in this embodiment is provided with an arc structure of an adaptable profile line.

[0037] In the above implementation, the fixture 1 and the positioner 3 are both provided with multiple and both are arranged correspondingly, multiple fixtures 1 are arranged in series or in parallel, preferably in parallel, and connected by air pipelines, multiple positioners 3 are arranged in series or in parallel, preferably in parallel, and connected by air pipelines, and the positioners 3 and fixtures 1 with corresponding positions are arranged in series. To increase the amount of clamping at one time, only one tool setting operation is required, and the tool is controlled by the CNC system to process multiple scroll discs in sequence, without the need to clamp one by one and to perform tool setting operations for each clamping.

[0038] The base plate 5 is also included. The base plate 5 is fixed to the milling platform by bolts. A guide groove 51 is provided on the base plate 5. The clamp 1 is installed in the guide groove 51 by T-bolts and is connected and fixed to the base plate 5.

[0039] In the above-mentioned implementation situation, an initial positioning structure is provided in the middle part of the clamp 1, and the initial positioning structure includes a plurality of positioning plates 11 distributed circumferentially with the middle part of the clamp 1 as the center, and each positioning plate includes a lower plate 111 and an upper plate 112. The lower plate 111 is fixed to the middle area of ​​the clamp 1, and a ramp structure is provided on the top of the lower plate 111 and a guide groove 2 113 is provided at the ramp structure. The ramp structure is arranged obliquely downward outward along the middle part of the clamp 1, and a spring is installed in the guide groove 2 113 and is suitable for flexibly installing the upper plate 112. An ear plate is provided at the bottom of the upper plate 112, and the ear plate is slidably arranged in the guide groove 2 113. The ear plate is a cross-shaped structure, and the upper plate 112 is used to position the bottom groove of the vortex disk.

[0040] When the angle of the tail of the profile is limited, the upper plate 112 of the positioning plate 11 first contacts the blind hole at the bottom of the scroll plate, and then moves down along the second guide groove 113 through the upper plate 112, so that the upper plate 112 simultaneously expands and fixes the outer circle of the bottom of the scroll plate, and the scroll plate is rotated to ensure that the tail of the profile fits on the two positioning ends 31. Finally, the initial positioning of the scroll plate is completed, and the positioning end 31 will be recovered into the positioner 3 during the clamping process.

[0041] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A scroll milling tool, characterized in that: include: A clamp (1), the clamp (1) is used to clamp the bottom of the fixed scroll (2); A positioner (3), the positioner (3) is located on one side of the fixture (1) and is used to position the tail of the profile of the scroll (2); A controller (4) is used to control the clamp (1) to clamp or loosen the scroll plate (2).

2. A scroll milling tool according to claim 1, characterized in that: The clamps (1) and positioners (3) are both provided in plurality and are arranged correspondingly, the plurality of clamps (1) are arranged in series or in parallel, the plurality of positioners (3) are arranged in series or in parallel, and the positioners (3) and clamps (1) with corresponding positions are arranged in series.

3. A scroll milling tool according to claim 1, characterized in that: The positioner (3) is provided with two positioning ends (31), which are arranged up and down. The positioning ends (31) can be selectively extended and retracted. The extension of the positioning ends (31) and the loosening action of the clamp (1) are performed synchronously, and the retraction of the positioning ends (31) and the clamping action of the clamp (1) are performed synchronously.

4. A scroll milling tool according to claim 3, characterized in that: The positioner (3) is a pneumatic cylinder, an oil cylinder or an electric push rod.

5. A scroll disc milling tool according to claim 1 or 3, characterized in that: The controller (4) is provided with an operating end (41), and the operating end (41) can selectively control the clamp (1) to perform a clamping action or a loosening action.

6. A scroll milling tool according to claim 5, characterized in that: The controller (4) is a solenoid valve or a switching valve with an operating handle.

7. The scroll milling tool according to claim 1, characterized in that: It also includes a bottom plate (5), on which a guide groove (51) is provided, and the clamp (1) is installed in the guide groove (51) via T-bolts and is connected and fixed to the bottom plate (5).

8. The scroll milling tool according to claim 1, characterized in that: The middle part of the clamp (1) is provided with an initial positioning structure, the initial positioning structure comprising a plurality of positioning plates (11) distributed circumferentially with the middle part of the clamp (1) as the center, each positioning plate comprising a lower plate (111) and an upper plate (112), the lower plate (111) being fixed to the middle area of ​​the clamp (1), the top of the lower plate (111) being provided with a slope structure and a second guide groove (113) being provided at the slope structure, the slope structure being arranged obliquely outward and downward in the middle part of the clamp (1), a spring being installed in the second guide groove (113) and being suitable for flexibly installing the upper plate (112), the upper plate (112) being used for positioning the bottom groove of the scroll disk.

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