CN220128369U

CN220128369U - Rotary compressor piston chamfering device

Info

Publication number: CN220128369U
Application number: CN202321727164.5U
Authority: CN
Inventors: 李文兵; 何山海; 马金河
Original assignee: ZHEJIANG BAIDA PRECISION MANUFACTURING CORP
Current assignee: ZHEJIANG BAIDA PRECISION MANUFACTURING CORP
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2023-12-05
Anticipated expiration: 2033-07-04

Abstract

The utility model provides a rotary compressor piston chamfering device, and belongs to the technical field of machine tools. The rotary compressor piston chamfering machine solves the problems that an existing rotary compressor piston chamfering machine is low in efficiency and high in production cost. The rotary compressor piston chamfering device comprises a frame, a workpiece clamp, a swing arm and a movable sliding table, wherein the swing arm is connected with the frame through a rotating shaft and an elastic piece, one end part of the swing arm is fixedly connected with a grinding piece, and the movable sliding table is connected with the frame through a linear guide assembly and a sliding driving assembly; the movable sliding table is provided with a main shaft and a first motor, the workpiece clamp is arranged on the main shaft, and the first motor is in transmission connection with the main shaft; when the sliding driving assembly drives the movable sliding table to move, the edge angle of the outer circular surface of the workpiece can be contacted with the grinding piece, and the swing arm can be forced to swing and the acting force of the elastic piece on the swing arm can be increased; the chamfering is mainly the functions of blunting and deburring, and has the advantages of high processing efficiency and low processing cost.

Description

Rotary compressor piston chamfering device

Technical Field

The utility model belongs to the technical field of machine tools, and relates to a chamfering device, in particular to a rotary compressor piston chamfering device.

Background

The motor of the rotary compressor directly drives the rotary piston to make rotary motion so as to complete the compression of the refrigerant vapor. The rotary air compressor has the advantages of high compression efficiency, less parts, small volume, light weight, good balance performance, low noise, complete protective measures, low power consumption and the like because the piston performs rotary motion, the compression work is smooth and balanced, and the rotary air compressor has no clearance volume and no interference of re-expanding gas. There are many related documents concerning rotary compressors, such as rotary air conditioning compressors (CN 113883055 a) disclosed in chinese patent literature. With the development of society, the production and sales quantity base of the rotary compressor is extremely large; therefore, the method has great economic value for improving the processing efficiency of the parts and reducing the cost.

Chinese patent literature discloses a mill chamfering line (grant publication No. CN 212495595U) for a piston of a refrigerator compressor, in which a mill chamfering tool is carried by a mill chamfering manipulator to mill chamfer a piston workpiece on a corresponding positioning device. Because the production line adopts milling, the chamfering amount of the production line is larger, new burrs can be generated, and the chamfering of the piston of the rotary air conditioner compressor by utilizing the production line has the problems of low processing efficiency and high processing cost.

Disclosure of Invention

The utility model provides a rotary compressor piston chamfering device, which aims to solve the technical problems of improving the processing efficiency and reducing the processing cost of chamfering the outer circular surface of a rotary compressor piston.

The technical problems to be solved by the utility model can be realized by the following technical proposal: the rotary compressor piston chamfering device comprises a frame, a workpiece clamp, a swing arm and a movable sliding table, wherein the swing arm is connected with the frame through a rotating shaft, the swing arm is connected with the frame through an elastic piece, one end part of the swing arm is fixedly connected with a grinding piece, the movable sliding table is connected with the frame through a linear guide assembly, and a sliding driving assembly connected with the movable sliding table is installed on the frame; a main shaft and a first motor are arranged on the movable sliding table, a workpiece clamp is arranged on the main shaft, and a motor shaft of the first motor is in transmission connection with the main shaft; when the rotary compressor piston is arranged on the workpiece clamp and the sliding driving assembly drives the movable sliding table to move along the guiding direction of the linear guiding assembly, the edge angle of the outer circular surface of the rotary compressor piston can be contacted with the grinding piece, and the swing arm can be forced to swing and the acting force of the elastic piece on the swing arm can be increased.

The rotary compressor piston chamfering device adopts a grinding mode to process the chamfer of the outer circular surface of the rotary compressor piston; specifically, the motor drives the rotary compressor piston to continuously rotate, and the rotary compressor piston is hereinafter referred to as a workpiece; when the outer circumferential edge of the workpiece contacts the grinding member, the outer circumferential edge of the workpiece is ground. The elastic piece not only enables the workpiece to flexibly contact with the grinding piece, but also avoids local transitional grinding; the force of the workpiece and the grinding piece can be adjusted by adjusting the elastic force of the elastic piece, in other words, the elastic force of the elastic piece can be adjusted according to the material characteristics of the grinding piece. Therefore, the grinding amount of the external circular surface edge angle of the workpiece can be reduced, the grinding amount is usually less than 0.2mm, the grinding amount is mainly the functions of blunting and deburring, and the external circular surface edge angle of the workpiece and a grinding piece are in contact state and rotate for 1 to 3 circles, so that the machining can be completed.

Compared with the prior art, the rotary compressor piston chamfering device is used for machining the outer circular surface chamfer of the rotary compressor piston, so that the rotary compressor piston chamfering device has the advantages of high machining efficiency and low machining cost, burrs formed by machining end surfaces can be removed, new burrs are avoided, and simultaneously, the chamfer surface has the advantage of smoothness and flatness.

Preferably, the rack comprises a plate-shaped mounting substrate, the mounting substrate is horizontally arranged, and the workpiece clamp, the swing arm and the movable sliding table are arranged above the mounting substrate; the axis of the rotating shaft is vertically arranged relative to the plate surface of the mounting substrate or the axis of the rotating shaft is parallel to the plate surface of the mounting substrate.

Preferably, the plate surface of the mounting substrate is fixedly connected with a swinging seat, the rotating shaft is connected with the swinging seat through a bearing, and the swinging arm is fixedly connected with the rotating shaft.

Preferably, the grinding element is an oilstone or a sand stone.

Preferably, the middle section of the swing arm is connected with the rotating shaft, the grinding part is fixed on one end part of the swing arm, the elastic part is a tension spring or a rubber band, and the elastic part is connected with the other end part of the swing arm.

Preferably, an adjusting frame is fixed on the frame, a limiting rod is arranged on the adjusting frame in a penetrating manner, the end face of the limiting rod is an abutting surface for the swing arm to abut against, the limiting rod is connected with the adjusting frame through an adjusting structure, and the adjusting structure is used for adjusting the distance between the abutting surface of the limiting rod and the adjusting frame.

Preferably, the sliding driving assembly comprises a second motor arranged on the frame, and a motor shaft of the second motor is connected with the movable slipway through a screw nut pair; or the sliding driving assembly comprises an air cylinder arranged on the frame, and a piston rod of the air cylinder is connected with the movable sliding table.

Preferably, the main shaft is connected with the movable slipway through a bearing; the workpiece clamp is arranged at one end part of the main shaft, the first motor is positioned at one side of the main shaft, and a motor shaft of the first motor is connected with the other end part of the main shaft through a gear pair.

Drawings

Fig. 1 and 2 are schematic perspective views of a rotary compressor piston chamfering device from different perspectives.

Fig. 3 is a schematic top view of a rotary compressor piston chamfering device.

In the figure, 1, a rack; 2. a workpiece holder; 3. swing arms; 4. moving the sliding table; 5. a rotating shaft; 6. a swinging seat; 7. grinding the workpiece; 8. an elastic member; 9. an adjusting frame; 10. a limit rod; 11. a first nut; 12. a second nut; 13. a slide drive assembly; 14. a main shaft; 15. a first motor; 16. a gear pair; 17. a linear guide assembly; 18. a workpiece.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Embodiment one: a rotary compressor piston chamfering device comprises a frame 1, a workpiece clamp 2, a swing arm 3 and a movable sliding table 4.

The frame 1 comprises a plate-shaped mounting substrate, the mounting substrate is horizontally arranged, and the workpiece clamp 2, the swing arm 3 and the movable sliding table 4 are arranged above the mounting substrate.

The swing arm 3 is connected with the frame 1 through a rotating shaft 5, and the axial lead of the rotating shaft 5 is vertically arranged relative to the plate surface of the mounting substrate, so that the swing arm 3 swings horizontally and is limited to swing left and right for convenience in description. The swing seat 6 is fixedly connected to the surface of the mounting substrate, the rotating shaft 5 is connected with the swing seat 6 through a bearing, and the middle section of the swing arm 3 is fixedly connected with the rotating shaft 5, so that the swing flexibility, stability and bearing capacity of the swing arm 3 are effectively improved.

One end of the swing arm 3 is fixedly connected with a grinding piece 7, and the grinding piece 7 is oilstone or sand stone. The other end of the swing arm 3 is also connected with the frame 1 through an elastic piece 8, specifically, the elastic piece 8 is a tension spring or a rubber band, one side of the rotating shaft 5 is provided with an adjusting frame 9, the adjusting frame 9 is fixedly connected with the swing seat 6, one end of the tension spring is connected with the swing arm 3, and the other end of the tension spring is connected with the adjusting frame 9. The adjusting frame 9 is penetrated with a limiting rod 10, the end face of the limiting rod 10 is an abutting surface for the swing arm 3 to abut against, the initial position of the swing arm 3 is further limited, the limiting rod 10 is connected with the adjusting frame 9 through an adjusting structure, and the adjusting structure is used for adjusting the distance between the abutting surface of the limiting rod 10 and the adjusting frame 9. In other words, the initial position of the swing arm 3 is adjusted by adjusting the distance between the abutting surface of the limiting rod 10 and the adjusting frame 9, and the longer the distance between the abutting surface of the limiting rod 10 and the adjusting frame 9 is, the longer the stretched length of the tension spring is, and the larger the initial acting force of the tension spring on the swing arm 3 is; conversely, the shorter the stretched length of the tension spring is, the smaller the initial acting force of the tension spring on the swing arm 3 is. The specification and drawings show that the adjusting structure comprises a first nut 11 and a second nut 12 which are in threaded connection with a limiting rod 10, and the first nut 11 and the second nut 12 are respectively positioned on two sides of the adjusting frame 9.

The workpiece clamp 2 and the movable sliding table 4 are positioned at the rear side of the rotating shaft 5, the movable sliding table 4 is connected with the frame 1 through a linear guide assembly 17, and the direction of the linear guide assembly 17 is horizontal front-rear direction in the specification drawing. The frame 1 is provided with a sliding driving component 13 connected with the movable slipway 4; the specification and drawings show that the sliding driving assembly 13 comprises a second motor arranged on the mounting substrate, and a motor shaft of the second motor is connected with the movable slipway 4 through a screw nut pair.

The movable sliding table 4 is provided with a main shaft 14 and a first motor 15, and the main shaft 14 is connected with the movable sliding table 4 through a bearing; the work holder 2 is mounted on one end of the spindle 14. The specification and drawings show that the workpiece clamp 2 comprises a three-jaw cylinder and a jaw, and the cylinder body of the three-jaw cylinder is fixedly connected with the main shaft 14. The first motor 15 is located at one side of the main shaft 14, and a motor shaft of the first motor 15 is connected to the other end of the main shaft 14 through a gear pair 16, so that the structural compactness can be improved.

The operation and advantages of the various components are further described by describing the process of machining the outer circumferential surface of the rotary compressor piston by means of the rotary compressor piston chamfering device, and in a first step, the rotary compressor piston is sleeved on the jaws of the workpiece holder 2, and the three-jaw cylinder is controlled to operate so that the three jaws clamp the workpiece 18. Step two, controlling the operation of the first motor 15 to drive the workpiece 18 to rotate; and controlling the second motor to operate so as to drive the workpiece 18 to move forward and further approach the grinding piece 7; when the edge angle of the outer circular surface of the piston of the rotary compressor is contacted with the grinding piece 7, the workpiece 18 is still kept to move forwards, so that the workpiece 18 pushes the grinding piece 7 to force the swing arm 3 to swing against the elastic force of the elastic piece 8, the acting force of the elastic piece 8 on the swing arm 3 is increased, and the acting force between the grinding piece 7 and the workpiece 18 is also increased. It follows that by adjusting the initial position of the swing arm 3, the contact position of the workpiece 18 with the grinding member 7 can also be changed, thereby avoiding partial excessive wear of the grinding member 7. Fourthly, after the workpiece 18 and the grinding piece 7 are in a contact state and rotate for a plurality of circles, controlling the motor shaft of the second motor to rotate reversely, so as to drive the workpiece 18 to move backwards and further away from the grinding piece 7; in the process, under the elastic force of the elastic piece 8, the swing arm 3 resets and swings until contacting with the abutting surface of the limiting rod 10; thereby completing chamfering of one corner. The chamfering of the two corners can be accomplished more efficiently by utilizing the rotary compressor piston chamfering device to form two stations and by cooperating with the manipulator transfer work piece 18.

Embodiment two: the structure and principle of the embodiment are basically the same as those of the first embodiment, and the basic same points are not described in detail, only different places are described, and the different places are as follows: the axis of the rotating shaft 5 is arranged in parallel relative to the plate surface of the mounting substrate, so that the swing arm 3 swings up and down.

Claims

1. The utility model provides a rotary compressor piston chamfer device, including frame (1), work piece holder (2), swing arm (3) and removal slip table (4), be connected through pivot (5) between swing arm (3) and the frame (1), its characterized in that still is connected through elastic component (8) between swing arm (3) and the frame (1), one end fixedly connected with grinding piece (7) of swing arm (3), be connected through sharp direction subassembly (17) between removal slip table (4) and the frame (1), install slip drive assembly (13) that are connected with removal slip table (4) on the frame (1); a main shaft (14) and a first motor (15) are arranged on the movable sliding table (4), the workpiece clamp (2) is arranged on the main shaft (14), and a motor shaft of the first motor (15) is in transmission connection with the main shaft (14); when the rotary compressor piston is arranged on the workpiece clamp (2) and the sliding driving assembly (13) drives the movable sliding table (4) to move along the guiding direction of the linear guiding assembly (17), the edge angle of the outer circular surface of the rotary compressor piston can be contacted with the grinding piece (7), and the swing arm (3) can be forced to swing and the acting force of the elastic piece (8) on the swing arm (3) can be increased.

2. The rotary compressor piston chamfering device according to claim 1, characterized in that the frame (1) comprises a plate-like mounting substrate, which is horizontally arranged, and the work holder (2), the swing arm (3) and the moving slide table (4) are arranged above the mounting substrate; the axis of the rotating shaft (5) is arranged vertically relative to the plate surface of the mounting substrate or the axis of the rotating shaft (5) is arranged in parallel relative to the plate surface of the mounting substrate.

3. The rotary compressor piston chamfering device according to claim 2, characterized in that a swinging seat (6) is fixedly connected to the plate surface of the mounting substrate, the rotating shaft (5) is connected with the swinging seat (6) through a bearing, and the swinging arm (3) is fixedly connected with the rotating shaft (5).

4. Rotary compressor piston chamfering apparatus according to claim 1, characterized in that the grinding member (7) is an oilstone or a sand stone.

5. The rotary compressor piston chamfering device according to claim 1, characterized in that the middle section of the swing arm (3) is connected with the rotating shaft (5), the grinding member (7) is fixed on one end of the swing arm (3), the elastic member (8) is a tension spring or a rubber band, and the elastic member (8) is connected with the other end of the swing arm (3).

6. The rotary compressor piston chamfering device according to any one of claims 1 to 5, characterized in that an adjusting frame (9) is fixed on the frame (1), a limiting rod (10) is arranged on the adjusting frame (9) in a penetrating mode, the end face of the limiting rod (10) is an abutting face for the swing arm (3) to abut against, the limiting rod (10) is connected with the adjusting frame (9) through an adjusting structure, and the adjusting structure is used for adjusting the distance between the abutting face of the limiting rod (10) and the adjusting frame (9).

7. Rotary compressor piston chamfering device according to any of claims 1 to 5, characterized in that the sliding drive assembly (13) comprises a second motor mounted on the frame (1), the motor shaft of which is connected to the moving slide table (4) by means of a screw nut pair; or the sliding driving component (13) comprises an air cylinder arranged on the frame (1), and a piston rod of the air cylinder is connected with the movable sliding table (4).

8. Rotary compressor piston chamfering device according to any of claims 1 to 5, characterized in that the spindle (14) is connected to the moving slide (4) by means of bearings; the workpiece clamp (2) is arranged on one end part of the main shaft (14), the first motor (15) is positioned on one side of the main shaft (14), and a motor shaft of the first motor (15) is connected with the other end part of the main shaft (14) through a gear pair (16).