Machining tool for eccentric wheel of scroll compressor

Abstract

The machining tool of the eccentric wheel of the scroll compressor comprises a base table, a fan-shaped groove and a square groove are formed in the base table, the narrow opening end of the fan-shaped groove is communicated with the square groove, an eccentric wheel blank is placed in the fan-shaped groove, and an extrusion piece is installed in the square groove. The eccentric wheel blank is placed in the fan-shaped groove, so that the fan-shaped part is attached to the interior of the fan-shaped groove, the connecting shaft part is attached to the interior of the square groove, then the extrusion piece is screwed to linearly extrude the eccentric wheel blank, preliminary positioning is conducted, and at the moment, the clamping piece is started to synchronously clamp the eccentric wheel blank in the left-right direction from the two sides; at the moment, the eccentric wheel blank is clamped by applying force in four horizontal directions, and clamping force can be stably and uniformly applied to a connecting shaft part and a fan-shaped part of the eccentric wheel blank, so that the device has the advantages that the clamping force is applied to the periphery of the eccentric wheel, the clamping stability is better, the operation is convenient and efficient, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of eccentric wheels, and more specifically, to a processing tool for an eccentric wheel of a scroll compressor. Background Art

[0002] The eccentric wheel is an important part inside the scroll compressor. The eccentric wheel is fan-shaped and the hole is eccentric. The eccentric wheel adds eccentric weight inside the compressor and adjusts the dynamic balance of the scroll compressor in the rotational motion. Therefore, the processing of the eccentric wheel is very important. The guarantee of dimensional tolerance and position tolerance depends not only on the accuracy of the processing machine tool, but also on precise processing tooling.

[0003] For example, the patent with the publication number CN210549584U discloses a processing tooling for the eccentric wheel of a scroll compressor, including a bottom plate, a circular groove matching the bottom of the eccentric wheel blank is provided in the middle of the bottom plate, a left baffle is fixed on the left side of the upper surface of the bottom plate, a right baffle that can only move left and right is provided on the right side of the upper surface of the bottom plate, a left groove is provided on the right side of the left baffle, a right groove is provided on the left side of the right baffle, the left groove and the right groove match the left and right sides of the eccentric wheel blank respectively, a guard plate is fixed on the right side of the bottom plate, and a telescopic device that can control the left and right movement of the right baffle is provided between the right baffle and the guard plate. The utility model ensures the processing accuracy by adjusting the fixing method of the eccentric wheel blank of the eccentric wheel processing tooling, reasonably clamping the blank, simplifying the tooling, thereby shortening the time of clamping the blank, and avoiding the phenomenon of one side of the eccentric wheel blank tilting.

[0004] However, the existing technical solution only fixes the eccentric wheel by clamping on both sides. Since the eccentric wheel is fan-shaped, this method cannot apply force evenly to the eccentric wheel. When processing the fan-shaped part far away from the clamping point, since this part is not fixed with force, it is easy to cause deviation during processing, resulting in poor tooling positioning effect, and even causing the workpiece to loosen and damage the blank and processing equipment, resulting in poor use effect. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a processing tool for an eccentric wheel of a scroll compressor to solve the background technical problems.

[0006] To achieve the above purpose, the utility model adopts the following technical solution.

[0007] A processing tool for an eccentric wheel of a scroll compressor comprises a base, wherein a fan-shaped groove and a square groove are formed on the base, wherein the narrow end of the fan-shaped groove is connected to the square groove, an eccentric wheel embryo is placed inside the fan-shaped groove, an extrusion piece is installed inside the square groove, and a clamping piece is installed on the base, wherein the clamping piece clamps the eccentric wheel embryo from both sides.

[0008] As a further description of the above technical solution: the extrusion member includes a threaded rod and a sliding block, one end of the threaded rod passes through the outside of the base and is threadedly connected thereto, the other end of the threaded rod extends to the inside of the square groove and is rotatably connected to the sliding block, and the bottom of the sliding block is slidably connected to the inside of the square groove.

[0009] As a further description of the above technical solution: the sliding block is provided with an arc surface on the side facing the eccentric wheel embryo, and the arc surface is clamped with the side surface of the shaft portion connected to the eccentric wheel embryo.

[0010] As a further description of the above technical solution: the clamping member includes two symmetrically distributed movable plates, two mating grooves and a driving member, one end of the movable plate is rotatably connected to the base, and the bottom end of the movable plate away from the hinge rotation point is slidably connected to the base, and the two mating grooves are respectively arranged on the opposite sides of the two movable plates, and the two mating grooves are symmetrically clamped to the outer side of the eccentric wheel blank connecting shaft.

[0011] As a further description of the above technical solution: the driving member includes a cylinder, a moving block and two articulated rods. The cylinder is fixedly installed on one side of the base, the output end of the cylinder is fixedly connected to the moving block, the two sides of the moving block are respectively hinged to the two articulated rods, and the other ends of the two articulated rods are respectively hinged to the two moving plates.

[0012] As a further description of the above technical solution: an expansion slot is provided inside the square slot, and the width of the expansion slot is greater than the width of the sliding block.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This solution uses an extrusion piece in conjunction with a clamping piece, which can achieve horizontal four-way force clamping of the eccentric wheel blank while maintaining good stability, and effectively avoid the problem of unstable clamping that may occur when processing points far from the clamping point due to uneven force application. At the same time, the clamping operation is convenient and flexible, easy to operate, efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0018] Figure 4 It is a side cross-sectional structural schematic diagram of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Base; 2. Fan-shaped groove; 3. Square groove; 31. Extension groove; 4. Eccentric wheel blank; 5. Extrusion piece; 51. Threaded rod; 52. Sliding block; 521. Arc surface; 6. Clamping piece; 61. Moving plate; 62. Fitting groove; 63. Driving piece; 631. Cylinder; 632. Moving block; 633. Articulated rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figures 1 to 4 In the utility model, a processing tool for an eccentric wheel of a scroll compressor includes a base 1, a fan-shaped groove 2 and a square groove 3 are opened on the base 1, the narrow end of the fan-shaped groove 2 is connected to the square groove 3, an eccentric wheel embryo 4 is placed inside the fan-shaped groove 2, an extrusion piece 5 is installed inside the square groove 3, a clamping piece 6 is installed on the base 1, and the clamping piece 6 clamps the eccentric wheel embryo 4 from both sides.

[0023] In the utility model, the base 1 is used as a device support. When in use, the eccentric wheel embryo 4 is first placed inside the fan-shaped groove 2, so that the fan-shaped part fits inside the fan-shaped groove 2, and the connecting shaft fits inside the square groove 3, and then the extrusion piece 5 is twisted to linearly extrude the eccentric wheel embryo 4 for preliminary positioning. At this time, the clamping piece 6 is started to clamp the eccentric wheel embryo 4 in the left and right directions synchronously from both sides. At this time, the eccentric wheel embryo 4 is clamped by applying force in four horizontal directions, and the clamping force can be stably and evenly applied to the connecting shaft and the fan-shaped part of the eccentric wheel embryo 4 to achieve stable clamping, and the clamping operation is very convenient. The invention is simple and convenient, and has higher operating efficiency, so that the device can apply clamping force on all sides of the eccentric wheel, and the clamping stability is better. At the same time, the operation is convenient and efficient, and it is easy to use. It solves the problem of fixing by clamping on both sides in the prior art. Since the eccentric wheel is fan-shaped, this method cannot apply force evenly to the eccentric wheel. When processing the fan-shaped part far away from the clamping point, since this part is not fixed with force, it is easy to cause deviation during processing, resulting in poor tooling positioning effect, and even causing the workpiece to loosen and damage the blank and processing equipment, resulting in poor use effect.

[0024] See also Figure 1 and Figure 3 , wherein: the extrusion member 5 includes a threaded rod 51 and a sliding block 52, one end of the threaded rod 51 passes through the outside of the base 1 and is threadedly connected thereto, the other end of the threaded rod 51 extends to the inside of the square groove 3 and is rotatably connected to the sliding block 52, and the bottom of the sliding block 52 is slidably connected to the inside of the square groove 3.

[0025] In the utility model, the threaded rod 51 is rotated to drive the sliding block 52 to slide along the inner straight line of the square groove 3, contact and squeeze the eccentric wheel embryo 4 and cooperate with the fan-shaped groove 2 to achieve longitudinal force adherence, thereby achieving preliminary fixation of the embryo wheel, and the operation is convenient.

[0026] See also Figure 1 and Figure 3 , wherein: a side of the sliding block 52 facing the eccentric wheel embryo 4 is provided with an arc surface 521 , and the arc surface 521 is clamped with the side surface of the connecting shaft of the eccentric wheel embryo 4 .

[0027] In the utility model, the contact stability of the sliding block 52 with the eccentric wheel blank 4 is improved by the arc surface 521 .

[0028] See also Figure 1 and Figure 4 , wherein: the clamping member 6 includes two symmetrically distributed moving plates 61, two fitting grooves 62 and a driving member 63, one end of the moving plate 61 is rotatably connected to the base 1, and the bottom end of the moving plate 61 away from the hinge rotation point is slidably connected to the base 1, and the two fitting grooves 62 are respectively arranged on the opposite sides of the two moving plates 61, and the two fitting grooves 62 are symmetrically clamped to the outer side of the connecting shaft of the eccentric wheel blank 4.

[0029] In the utility model, the two movable plates 61 are driven to close and operate by starting the driving member 63 to clamp and fix the eccentric wheel blank 4 in the left and right directions to achieve stable clamping, and the two fitting grooves 62 are used to ensure that the movable plate 61 and the outer side of the eccentric wheel blank 4 fit more stably, so that the clamping force is more uniform and stable, thereby improving the clamping stability.

[0030] See also Figure 1 and Figure 4 , wherein: the driving member 63 includes a cylinder 631, a moving block 632 and two hinged rods 633, the cylinder 631 is fixedly installed on one side of the base 1, the output end of the cylinder 631 is fixedly connected to the moving block 632, the two sides of the moving block 632 are respectively hinged to the two hinged rods 633, and the other ends of the two hinged rods 633 are respectively hinged to the two moving plates 61.

[0031] In the utility model, the cylinder 631 is started to drive the moving block 632 to move linearly, so that the two moving plates 61 are pulled together and operated through the two hinged rods 633 to achieve an efficient and stable clamping effect.

[0032] See also Figure 3 , wherein: an expansion slot 31 is opened inside the square slot 3 , and the width of the expansion slot 31 is greater than the width of the sliding block 52 .

[0033] In the utility model, the sliding block 52 has enough moving space by expanding the slot 31, so that the eccentric wheel blank 4 can be easily disassembled after processing and is easy to use.

[0034] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A processing tool for an eccentric wheel of a scroll compressor, comprising a base (1), characterized in that: The base (1) is provided with a fan-shaped groove (2) and a square groove (3), the narrow end of the fan-shaped groove (2) is connected to the square groove (3), an eccentric wheel blank (4) is placed inside the fan-shaped groove (2), an extrusion piece (5) is installed inside the square groove (3), and a clamping piece (6) is installed on the base (1), and the clamping piece (6) clamps the eccentric wheel blank (4) from both sides.

2. The processing tool for the eccentric wheel of a scroll compressor according to claim 1, characterized in that: The extrusion member (5) comprises a threaded rod (51) and a sliding block (52), one end of the threaded rod (51) passes through the outside of the base (1) and is threadedly connected thereto, the other end of the threaded rod (51) extends into the interior of the square groove (3) and is rotatably connected to the sliding block (52), and the bottom of the sliding block (52) is slidably connected to the interior of the square groove (3).

3. The processing tool for the eccentric wheel of a scroll compressor according to claim 2, characterized in that: The sliding block (52) is provided with an arcuate surface (521) on the side facing the eccentric wheel embryo (4), and the arcuate surface (521) is clamped with the side surface of the connecting shaft of the eccentric wheel embryo (4).

4. The processing tool for the eccentric wheel of a scroll compressor according to claim 1, characterized in that: The clamping member (6) comprises two symmetrically distributed movable plates (61), two engaging grooves (62) and a driving member (63); one end of the movable plate (61) is rotatably connected to the base (1); the bottom end of the movable plate (61) away from the hinge rotation point is slidably connected to the base (1); the two engaging grooves (62) are respectively arranged on opposite sides of the two movable plates (61); and the two engaging grooves (62) are symmetrically clamped to the outer side of the connecting shaft of the eccentric wheel blank (4).

5. The processing tool for the eccentric wheel of a scroll compressor according to claim 4, characterized in that: The driving member (63) comprises a cylinder (631), a moving block (632) and two hinged rods (633); the cylinder (631) is fixedly mounted on one side of the base (1); the output end of the cylinder (631) is fixedly connected to the moving block (632); the two sides of the moving block (632) are respectively hinged to the two hinged rods (633); and the other ends of the two hinged rods (633) are respectively hinged to the two moving plates (61).

6. The processing tool for the eccentric wheel of a scroll compressor according to claim 2, characterized in that: An expansion slot (31) is provided inside the square slot (3), and the width of the expansion slot (31) is greater than the width of the sliding block (52).

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