Tool for processing molded line of scroll plate

Abstract

The utility model discloses a tool for processing a molded line of a scroll plate, and belongs to the technical field of scroll compressor processing. A tool for machining a molded line of a scroll plate comprises a base and a clamping workpiece fixedly mounted on the base, and further comprises a placement seat arranged on the base, the placement seat is provided with a first positioning pin and a second positioning pin, and when the scroll plate body is placed on the placement seat, the first positioning pin and the second positioning pin both extend into the scroll plate body; at least three groups of clamping workpieces are distributed on the periphery of the base at equal intervals in the circumferential direction, pressing plates are rotationally connected to the clamping workpieces, and the clamping workpieces are clamped by adopting an accurate positioning mode of one surface with two pins and one shaft and combining a central positioning shaft at the center of the placing seat, a first positioning pin and a second positioning pin. The high accuracy of the scroll plate body in the machining process is ensured, the installation precision of the scroll plate body is remarkably improved through the multi-point positioning method, and machining errors are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to scroll compressor processing technical field especially relates to a frock for scroll disc processing profile. BACKGROUND

[0002] Scroll compressor has been widely used in refrigeration, air conditioning and other gas compression fields due to its high efficiency, low noise and compact structure, scroll disc as one of the core components of scroll compressor, its geometric precision and surface quality have a vital influence on the overall performance of the compressor, scroll disc is usually composed of two or more discs with spiral grooves, one of which is fixed while the other rotates around the center but does not rotate, thereby realizing the suction, compression and discharge of gas.

[0003] In the manufacturing process of scroll disc, especially when profile processing is carried out, it is crucial to ensure the stability and positioning accuracy of the workpiece, traditionally, the clamping of scroll disc mainly depends on mechanical clamps, such as three jaw chucks, four jaw single action chucks and other general clamps.

[0004] However, when these traditional clamps are used, due to the complex curved surface shape of scroll disc, it is difficult to accurately match the shape of scroll disc using general clamps, resulting in large positioning error. SUMMARY

[0005] The utility model aims at solving the problem that in the prior art, due to the complex curved surface shape of scroll disc, it is difficult to accurately match the shape of scroll disc using general clamps, resulting in large positioning error, and proposes a frock for scroll disc processing profile.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A frock for scroll disc processing profile, comprising a base and a clamping workpiece fixedly installed on the base, further comprising: a placing seat provided on the base, the placing seat having a first positioning pin and a second positioning pin, when the scroll disc body is placed on the placing seat, the first positioning pin and the second positioning pin both extend into the scroll disc body; at least three groups of clamping workpieces are distributed equidistantly around the periphery of the base, wherein a pressing plate is rotatably connected to the clamping workpiece, when the output end of the clamping workpiece protrudes, the pressing plate is pressed against the scroll disc body.

[0008] In order to improve the accuracy of clamping, a guide plate is further included, which is fixedly installed on the clamping workpiece and rotatably connected to the pressing plate, for guiding the movement direction of the pressing plate.

[0009] For the preliminary positioning of the scroll disc body, further, the placing seat center has a center positioning shaft for preliminary positioning with the machining plane of the bottom of the scroll disc body.

[0010] In order to adapt to scroll disc bodies of different thicknesses, the versatility of the tooling is increased, further, a raised seat is arranged between the base and the placing seat, the raised seat is fixed with the placing seat by bolts, and the raised seat, the placing seat and the scroll disc body are coaxial after being fixed.

[0011] In order to ensure the positional accuracy of the scroll disc body during machining, the raised seat, the placing seat and the scroll disc body are coaxial after being fixed.

[0012] In order to provide additional support points and enhance the stability of the scroll disc body during machining, preferably, the scroll disc body has positioning blocks uniformly distributed along the circumferential edge.

[0013] Compared with the prior art, the tooling for scroll disc machining profile provided by the present application has the following beneficial effects:

[0014] 1. The tooling for scroll disc machining profile adopts a precise positioning method of "one face, two pins and one shaft", combines the center positioning shaft at the center of the placing seat, and the first and second positioning pins, to ensure the high accuracy of the scroll disc body during machining. This multi-point positioning method significantly improves the installation accuracy of the scroll disc body and reduces machining errors.

[0015] 2. The tooling for scroll disc machining profile realizes synchronous action of multiple cylinders through a control system, so that the clamping force is uniformly distributed on the circumference of the entire scroll disc body, preventing deformation caused by excessive local stress and ensuring stability during machining. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure schematic diagram of the tooling for scroll disc machining profile is provided for the present application;

[0017] Figure 2 The internal structure schematic diagram of the tooling for scroll disc machining profile is provided for the present application;

[0018] Figure 3 The scroll disc body structure schematic diagram of the tooling for scroll disc machining profile is provided for the present application;

[0019] Figure 4 The placing seat structure schematic diagram of the tooling for scroll disc machining profile is provided for the present application.

[0020] In the figure: 1, scroll disc body; 101, positioning block; 2, base; 3, placing seat; 301, first positioning pin; 302, second positioning pin; 303, center positioning shaft; 4, clamping workpiece; 5, pressing plate; 6, guide plate; 7, lifting seat. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] In the description of the utility model, it needs to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] The scroll disc is a core component of an air conditioner compressor, which is composed of a dynamic scroll disc and a static scroll disc, and they realize high-efficiency compression through mutual engagement, and the manufacturing precision requirement is extremely high, and the scheme utilizes the scroll disc bearing hole, the process hole and the reverse surface processed plane for ultra-precision positioning, and effectively offsets the positioning deviation problem caused by cutting stress.

[0024] Embodiment:

[0025] Reference Figures 1-4 A tool for scroll disc machining profile, including base 2 and fixedly installed on base 2 clamping workpiece 4, base 2 provides a stable foundation for the whole tool, the upper surface is flat, still include: setting on base 2 placing seat 3, placing seat 3 has first positioning pin 301 and second positioning pin 302, when scroll disc body 1 is placed on placing seat 3, first positioning pin 301 and second positioning pin 302 all extend into scroll disc body 1, realize "one face two pin plus one shaft" accurate positioning mode, ensure the accurate position of scroll disc body 1 in the processing process, at least three groups of clamping workpiece 4 are distributed equidistantly around the periphery of base 2, each clamping workpiece 4 is fixedly installed on base 2, wherein, the clamping workpiece 4 is rotatably connected with pressing plate 5, when the output end of clamping workpiece 4 is stretched out, pressing plate 5 is pressed on scroll disc body 1, so that the clamping force is evenly distributed on the circumference of the whole scroll disc body 1, prevent deformation caused by excessive local stress, ensure the stability in the processing process.

[0026] It should be noted that the clamping workpiece 4 can adopt pneumatic clamping, hydraulic clamping, mechanical manual clamping, electric clamping, etc., and the embodiment preferably adopts a pneumatic cylinder, and the clamping action only needs 10 seconds, which is fast and efficient, and has the advantages of low cost, fast clamping action, stability after clamping, etc. compared with hydraulic clamps on the market.

[0027] When the tool is used for machining the scroll disc body 1, first, the scroll disc body 1 is placed on the placing seat 3, the machining holes on the scroll disc body 1 are tightly matched with the first positioning pin 301 and the second positioning pin 302 respectively, then the existing control system is started, all clamping workpieces 4 are synchronized, and uniform pressure is applied to tightly press the scroll disc body 1 on the placing seat 3, at this time, the scroll disc body 1 has realized accurate positioning and stable clamping, and subsequent machining operation can be started.

[0028] In addition, the base 2, the placing seat 3, the first positioning pin 301, the second positioning pin 302 and the clamping workpiece 4 are all made of corrosion-resistant materials, which prolongs the service life and reduces the maintenance cost.

[0029] Further, the base 2, the placing seat 3, the first positioning pin 301, the second positioning pin 302 and the clamping workpiece 4 are all made of corrosion-resistant materials, which prolongs the service life and reduces the maintenance cost.

[0030] The placing seat 3 is provided with a center positioning shaft 303 at the center, which is used for preliminary positioning with the machining plane at the bottom of the scroll disc body 1.

[0031] When the tool is used for machining the scroll disc body 1, first, the scroll disc body 1 is placed on the placing seat 3, the machining plane at the bottom of the scroll disc body 1 is preliminarily aligned with the center positioning shaft 303 at the center of the placing seat 3, then the position is further adjusted, so that the machining holes on the scroll disc body 1 are tightly matched with the first positioning pin 301 and the second positioning pin 302 respectively, at this time, the combined positioning of “one side, two pins and one shaft” ensures the accurate position of the scroll disc body 1.

[0032] The base 2 and the placing seat 3 are provided with a lifting seat 7, the lifting seat 7 is fixed with the placing seat 3 through bolts, and further, the lifting seat 7, the placing seat 3 and the scroll disc body 1 are coaxial after being fixed.

[0033] The function of the lifting seat 7 is to adjust the height of the scroll disc body 1, so as to ensure that the scroll disc body 1, the lifting seat 7 and the placing seat 3 are coaxial after being fixed, thereby improving the machining precision, and the design of the lifting seat 7 can also adapt to scroll disc bodies 1 of different thicknesses, thereby increasing the versatility of the tool.

[0034] The circumferential edge of the scroll disc body 1 has positioning blocks 101, which are uniformly distributed.

[0035] These positioning blocks 101 not only provide additional support points, but also enhance the stability of the scroll disc body 1 during machining, and the positions of the three positioning blocks 101 cannot affect the use of the normal working surface of the orbiting scroll disc body 1.

[0036] When machining the scroll disc body 1 using the tooling, first place the scroll disc body 1 on the placement seat 3, so that the machining plane at the bottom of the scroll disc body 1 is initially aligned with the center positioning shaft 303 at the center of the placement seat 3, then further adjust the position so that the machining holes on the scroll disc body 1 are tightly fitted with the first positioning pin 301 and the second positioning pin 302, at this time, the combined positioning of "one side, two pins and one shaft" ensures the accurate position of the scroll disc body 1, then start the existing control system, all clamping workpieces 4 move synchronously, and uniform pressure is applied to firmly press the scroll disc body 1 on the placement seat 3, due to the action of the lifting seat 7, the scroll disc body 1, the lifting seat 7 and the placement seat 3 remain coaxially aligned, improving the machining accuracy, and subsequent machining operations can be performed.

[0037] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A tooling for machining profiles on a scroll plate, comprising a base (2) and a clamping workpiece (4) fixedly mounted on the base (2), characterized in that, Also includes: The placement seat (3) is provided on the base (2). The placement seat (3) has a first positioning pin (301) and a second positioning pin (302). When the scroll plate body (1) is placed on the placement seat (3), the first positioning pin (301) and the second positioning pin (302) both extend into the scroll plate body (1). At least three sets of clamping workpieces (4) are equidistantly distributed around the base (2) in a circular pattern. The clamping workpiece (4) is rotatably connected to a pressure plate (5). When the output end of the clamping workpiece (4) extends, the pressure plate (5) presses against the scroll plate body (1).

2. The tooling for machining profiles of a scroll plate according to claim 1, characterized in that, It also includes a guide plate (6), which is fixedly installed on the clamped workpiece (4) and rotatably connected to the pressure plate (5) to guide the movement direction of the pressure plate (5).

3. A tooling for machining profiles of a scroll plate according to claim 1 or 2, characterized in that, The placement seat (3) has a central positioning shaft (303) at its center, which is used for initial positioning with the machining plane at the bottom of the scroll plate body (1).

4. The tooling for machining profiles of a scroll plate according to claim 3, characterized in that, A lifting seat (7) is provided between the base (2) and the placement seat (3), and the lifting seat (7) and the placement seat (3) are fixed by bolts.

5. The tooling for machining profiles of a scroll plate according to claim 4, characterized in that, The lifting seat (7), the placement seat (3), and the vortex disk body (1) are coaxial after being fixed.

6. The tooling for machining profiles of a scroll plate according to claim 1, characterized in that, The vortex disk body (1) has positioning blocks (101) along its circumferential edge, and the positioning blocks (101) are evenly distributed.

Images