A compressor end cover and a cutting device thereof

Abstract

The application discloses a compressor end cover and a cutting device thereof, and relates to the technical field of metal processing. The compressor end cover comprises an end cover body, and the cutting device is used for machining the end cover body and comprises a lathe. A cutting tool is arranged on a three-jaw chuck of the lathe, and the cutting tool flexibly clamps the end cover body. The cutting tool comprises a clamping column and a clamping assembly, and the clamping assembly is connected to the clamping column. The clamping assembly comprises a clamping disc, an upper clamping piece and a lower clamping piece. The clamping disc is fixed to the clamping column. The upper clamping piece is movably arranged on the clamping disc. The lower clamping piece is fixedly arranged on the clamping disc. The lower clamping piece internally clamps the end cover body, and cooperates with the upper clamping piece to externally clamp the end cover body. The end cover body is flexibly clamped by the cutting tool, the clamping angle of the end cover body is flexibly adjusted, and the inlet and the outlet are facilitated to be operated with external threads.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal processing, in particular to a compressor end cover and a cutting device thereof. BACKGROUND

[0002] The automobile air conditioner compressor is the core component of the automobile air conditioner system, and its function is to realize heat exchange circulation through compression of refrigerant. The upper end cover of the compressor, as a key structural part of the automobile air conditioner compressor, usually needs to process external threads on the outer shaft surface of the air inlet and air outlet to meet the sealing connection requirements with the pipeline system. Since the upper end cover is a rotary body type part, in the existing processing technology, the external threads of the air inlet and air outlet are usually processed by turning, and in small-scale production enterprises, due to the limitation of equipment cost (such as low popularization rate of numerical control machining center or five-axis lathe), ordinary lathe is usually used to complete the processing.

[0003] However, due to the structural characteristics of the upper end cover (the air inlet and air outlet are asymmetrically distributed and there is an angle offset), the existing processing technology relying on ordinary lathe has the following problems:

[0004] 1. Low efficiency caused by multiple clamping: In order to complete the processing of two groups of threads, manual disassembly of the workpiece and re-adjustment of the clamping angle are usually carried out on the three-jaw chuck of the ordinary lathe, which is tedious and time-consuming, resulting in prolonged processing cycle of single piece and difficult improvement of production efficiency.

[0005] 2. Difficulty in ensuring positioning accuracy: During repeated clamping, the repeated positioning error of the workpiece easily leads to processing deviation of the two groups of threads, which does not meet the size requirements.

[0006] 3. Coexistence of labor cost and quality risk: The method of relying on the experience of operators to adjust the clamping angle not only requires high skill of workers, but also has the risk of quality fluctuation in batch production. SUMMARY

[0007] The purpose of the present application is to provide a compressor end cover and a cutting device thereof, which at least solve the following problems:

[0008] 1. The problem of low efficiency caused by multiple clamping of ordinary lathe to complete the processing of two groups of threads.

[0009] 2. The problem that the repeated positioning error of the workpiece easily leads to processing deviation of the two groups of threads during repeated clamping, which does not meet the size requirements;

[0010] 3. The problem that manual adjustment of the clamping angle requires high skill of workers, and there is a risk of quality fluctuation in batch production.

[0011] The purpose of the present application can be achieved by the following technical solutions:

[0012] A cutting device of a compressor end cover is used for machining an end cover body, comprising a lathe, a three-jaw chuck of the lathe is provided with a cutting tool, and the cutting tool flexibly clamps the end cover body;

[0013] The cutting tool comprises a clamping column and a clamping assembly connected to the clamping column.

[0014] The clamping assembly comprises:

[0015] A clamping disc fixed to the clamping column;

[0016] An upper clamping piece movably arranged on the clamping disc;

[0017] And a lower clamping piece fixedly arranged on the clamping disc.

[0018] The lower clamping piece internally clamps the end cover body, and cooperates with the upper clamping piece to externally clamp the end cover body.

[0019] As a further scheme of the present application, a through moving groove and a plug-in groove are formed in the clamping disc, and the plug-in groove is perpendicular to the moving groove.

[0020] Symmetrical fixed plates are arranged at both ends of the moving groove, a lengthened screw rod is cooperatively screwed between the two fixed plates, the lower clamping piece is fixed in the plug-in groove, and the upper clamping piece is movably arranged on the lengthened screw rod.

[0021] As a further scheme of the present application, the upper clamping piece comprises an upper clamping block, the upper clamping block is screw-connected to the lengthened screw rod, an upper clamping seat is fixedly connected to the upper clamping block, an installation groove is formed in one side of the upper clamping seat, and an upper clamping disc is rotatably arranged in the installation groove.

[0022] As a further scheme of the present application, the lower clamping piece comprises a lower clamping seat, a rotating groove is formed in the lower clamping seat, a rotating seat is rotatably arranged in the rotating groove, and a coarse positioning seat is arranged on the rotating seat.

[0023] As a further scheme of the present application, an installation cavity is formed in the coarse positioning seat, an inclined support base is arranged in the installation cavity, and the inclined support base is slidably arranged on the rotating seat.

[0024] Cooperating grooves are formed in the outer side surfaces of the coarse positioning seat, inner clamping plates are movably arranged in the cooperating grooves, guide rods are connected to the inner side surfaces of the inner clamping plates, inclined pushing blocks are connected to the guide rods penetrating through the coarse positioning seat, and the inclined pushing blocks are in contact with the inclined support base.

[0025] As a further scheme of the present application: the bottom of the lower clamp seat is provided with a threaded hole, and an adjusting piece is threadedly connected in the threaded hole, and the top surface of the adjusting piece abuts against the inclined support base;

[0026] By rotating the adjusting piece, the inclined support base is pushed to move.

[0027] As a further scheme of the present application: one side of the rotating seat is provided with a mounting block, and a positioning pin is arranged on the mounting block;

[0028] The other side of the rotating seat is provided with a T-shaped sliding groove, a rotating rod is slidingly arranged in the sliding groove, two groups of deflection positioning grooves are arranged on the lower clamp seat and are arranged around the central axis of the rotating groove, and the rotating rod is matched with the deflection positioning groove.

[0029] The rotating rod drives the deflection of the rotating seat, and the deflection is limited by the corresponding deflection positioning groove.

[0030] As a further scheme of the present application: the lower clamp further comprises a plug rod, which is used for limiting the rotating rod along the axis direction of the rotating seat during turning processing.

[0031] As a further scheme of the present application: a compressor end cover is processed by using the cutting device, and the compressor end cover comprises an end cover body, an end cover top surface is arranged on the top surface of the end cover body, a plurality of groups of bolt positioning tables are arranged on the end cover top surface, two groups of reinforcing tables are arranged on the shaft side of the end cover body, an air inlet and an air outlet are respectively arranged at the outer sides of the two groups of reinforcing tables, and an air inlet cavity and an air outlet cavity are arranged on the bottom surface of the end cover body.

[0032] The air passage of the air inlet is communicated with the air inlet cavity, and the air passage of the air outlet is communicated with the air outlet cavity.

[0033] As a further scheme of the present application: external threads are machined on the outer shaft surfaces of the air inlet and the air outlet.

[0034] The present application has the following advantages:

[0035] 1、The end cover body is clamped flexibly by the cutting tool, the clamping angle of the end cover body is flexibly adjusted, the air inlet and the air outlet are conveniently operated to machine external threads, the workpiece does not need to be manually disassembled and the clamping angle is re-adjusted on the ordinary lathe, the operation is simplified, the processing period of a single workpiece is shortened, the production efficiency is improved, the end cover body does not need to be repeatedly clamped, the positioning error is reduced, the machining precision is improved, the artificial skill requirement is further reduced, and the quality fluctuation risk is reduced in batch production.

[0036] 2、The present application is provided with adjusting member push top inclined support base, inclined support base extrusion inclined push block, further drive multiple sets of inner clamping plate outward expansion, inner clamping of end cover body, further cooperate with upper clamping disc and rotary seat and clamp the outside of end cover body, the cooperation of inner and outer clamping stably clamps end cover body on cutting tool, guarantee the sufficient stability of end cover body when processing. BRIEF DESCRIPTION OF DRAWINGS

[0037] The present application will be further described below in conjunction with the drawings.

[0038] Figure 1 It is the whole structure schematic diagram of the present application;

[0039] Figure 2 It is the cutting tool structure schematic diagram of the present application;

[0040] Figure 3 It is the cutting tool section structure schematic diagram of the present application;

[0041] Figure 4 It is the upper clamping piece structure schematic diagram of the present application;

[0042] Figure 5 It is the lower clamping piece structure schematic diagram of the present application;

[0043] Figure 6 It is the internal structure schematic diagram of the lower clamping piece of the present application;

[0044] Figure 7 It is the rotary seat and inclined support base cooperation structure schematic diagram of the present application;

[0045] Figure 8 It is the section structure schematic diagram of the lower clamping piece of the present application;

[0046] Figure 9 It is the rotary seat and lower clamping seat cooperation structure schematic diagram of the present application;

[0047] Figure 10 It is the end cover body structure schematic diagram of the present application Figure 1 ;

[0048] Figure 11 It is the end cover body structure schematic diagram of the present application Figure 2 .

[0049] In the figure: 1, lathe; 11, tool head; 2, cutting tool; 21, clamping column; 22, clamping assembly; 221, clamping disc; 222, moving groove; 223, fixed plate; 224, lengthened screw rod; 225, plug-in groove; 23, upper clamping piece; 231, upper clamping block; 232, upper clamping seat; 233, upper clamping disc; 234, matching circular arc surface; 24, lower clamping piece; 241, lower clamping seat; 2411, deflection positioning groove; 2412, clearance groove; 242, rotating groove; 243, rotating seat; 2431, guide hole one; 2432, sliding groove; 2433, mounting block; 2434, limiting plate; 2435, limiting groove; 244, threaded hole; 245, adjusting piece; 246, inclined strut base; 2461, guide hole two; 247, inclined strut surface; 248, coarse positioning seat; 2481, guide column; 249, inclined pushing block; 250, inner clamping plate; 251, positioning pin; 252, rotating rod; 253, plug rod; 100, end cover body; 101, end cover top surface; 102, bolt positioning table; 103, reinforcing table; 104, air inlet; 105, air outlet; 106, air inlet cavity; 107, air outlet cavity; 108, positioning hole. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0051] Embodiment one

[0052] As Figure 10 and Figure 11As shown, this embodiment provides a compressor end cover, including an end cover body 100. A convex arc-shaped end cover top surface 101 is provided on the top surface of the end cover body 100. Multiple sets of bolt positioning platforms 102 are provided on the end cover top surface 101 for connecting to the compressor body with bolts. Two sets of reinforcing platforms 103 are provided on the axial side of the end cover body 100. The two sets of reinforcing platforms 103 are rotatably distributed around the vertical axis of the end cover body 100, and the included angle between the two sets of reinforcing platforms 103 is determined according to actual conditions. The required design features a reinforcing platform 103 extending outwards at one end, with the extended end of the platform 103 threaded to form an air inlet 104 and an air outlet 105. Both the air inlet 104 and the air outlet 105 have internal air passages. An air inlet chamber 106 and an air outlet chamber 107 are located on the bottom surface of the end cover body 100. The air passage of the air inlet 104 communicates with the air inlet chamber 106, and the air passage of the air outlet 105 communicates with the air outlet chamber 107, thus realizing the compressor's air intake and exhaust functions. Furthermore, positioning holes 108 are provided on both sides of the lower end face of the end cover body 100 for positioning when connected to the compressor body. The two sets of positioning holes 108 are offset to prevent incorrect installation.

[0053] This embodiment directly provides an air inlet 104 and an air outlet 105 with threaded structures on the axial side of the end cover body 100, allowing the compressor to connect directly to the external piping system without the need for internal threads and connectors as in traditional end covers. This embodiment makes installation and connection more convenient, and the reinforcing platform 103 further enlarges the dimensions of the air inlet 104 and air outlet 105, thereby increasing the internal air intake and exhaust flow of the compressor and improving the overall performance of the automotive air conditioning system.

[0054] Example 2

[0055] like Figures 1-9 As shown, this embodiment provides a cutting device for a compressor end cap, used to process the end cap product of Embodiment 1. It includes a lathe 1, on which a cutting fixture 2 is provided on a three-jaw chuck. The cutting fixture 2 flexibly clamps the end cap body 100, allowing for flexible adjustment of the clamping angle. This facilitates the machining of external threads on the air inlet 104 and air outlet 105, eliminating the need for manual disassembly and readjustment of the clamping angle on a conventional lathe. This simplifies operation, shortens the processing cycle of a single workpiece, and improves production efficiency. Furthermore, the end cap body 100 does not require repeated clamping, reducing positioning errors and improving machining accuracy. This further reduces the skill requirements for manual operation and minimizes the risk of quality fluctuations in mass production.

[0056] like Figure 2As shown, the cutting tool 2 in the embodiment includes a clamping column 21 clamped by the three-jaw chuck of the lathe 1, and a clamping assembly 22 connected to the other end of the clamping column 21, which includes an upper clamping piece 23 and a lower clamping piece 24, and the end cover body 100 is clamped flexibly by the upper clamping piece 23 and the lower clamping piece 24, and the clamping angle can be adjusted flexibly when needed, which is convenient for processing of the two groups of threads.

[0057] Wherein the clamping column 21 is pre-assembled and positioned with the three-jaw chuck of the lathe 1, and does not need to be disassembled again during the whole processing, and the end cover body 100 is clamped by adjusting the upper clamping piece 23 in the clamping assembly 22 during processing, and the angle is deflected by adjusting the lower clamping piece 24 when the clamping angle needs to be converted, thereby saving the time for installation, disassembly and alignment, and improving the processing efficiency.

[0058] Preferably, as shown in Figure 2 and Figure 3 The clamping assembly 22 in the embodiment further includes a clamping disc 221 fixed on the outer side end face of the clamping column 21, a moving groove 222 is opened in the middle of the clamping disc 221, and an insertion groove 225 is opened on one side of the clamping disc 221, wherein the insertion groove 225 and the moving groove 222 are perpendicular and intersect, and the groove bottoms are flush; the fixed plates 223 are fixed and installed at both ends of the moving groove 222 and located on the clamping disc 221, and the two fixed plates 223 are symmetrically distributed about the center line of the clamping disc 221, and the lengthened screw rod 224 is cooperatively installed between the two fixed plates 223, and the lengthened screw rod 224 is threadedly connected with the two fixed plates 223. Wherein the lower clamping piece 24 is fixed in the insertion groove 225, and the upper clamping piece 23 is movably installed on the lengthened screw rod 224, and the upper clamping piece 23 is driven to move by adjusting the lengthened screw rod 224, thereby clamping the end cover body 100.

[0059] Preferably, as shown in Figure 3 and Figure 4 The upper clamping piece 23 in the embodiment includes an upper clamping block 231 threadedly connected on the lengthened screw rod 224, and the tail of the upper clamping block 231 is symmetrically provided with clamping grooves on both sides, and the moving groove 222 is symmetrically opened on both sides, and the tail of the upper clamping block 231 is slidably arranged in the clamping grooves, and the upper clamping block 231 is driven to move by rotating the lengthened screw rod 224; an upper clamping seat 232 is fixedly connected to the outer side end of the upper clamping block 231, the outer side clamping end of the upper clamping seat 232 is circularly arranged, the clamping range is increased, an installation groove is opened on the side of the upper clamping seat 232 corresponding to the end cover body 100, an upper clamping disc 233 is rotatably arranged in the installation groove, and a ventilation groove is opened in the middle of the groove bottom of the installation groove and penetrates the outside, which is convenient for exhausting during installation of the upper clamping disc 233, facilitates installation of the upper clamping disc 233, and a matching arc surface 234 is arranged on the contact surface between the upper clamping disc 233 and the end cover body 100, which expands the contact surface with the end cover top surface 101 and improves the stability of clamping.

[0060] Preferably, as Figures 5-9 shown, the lower clamp 24 of the embodiment comprises a lower clamp seat 241 fixed in the insertion slot 225, wherein the lower clamp seat 241 is arranged parallel to the upper clamp seat 232 disc and consistent in size. A rotating slot 242 is opened on the side of the lower clamp seat 241 close to the upper clamp 23, and a rotating seat 243 is rotatably arranged in the rotating slot 242. A rough positioning seat 248 matched with the air outlet cavity 107 is connected to the top surface of the rotating seat 243 by bolts. When clamping the end cover body 100, the air outlet cavity 107 is matched with the rough positioning seat 248 to achieve preliminary positioning.

[0061] Further, as Figure 8 shown, a mounting cavity is opened in the rough positioning seat 248, and an inclined support base 246 is arranged in the mounting cavity. The inclined support base 246 is slidingly installed on the rotating seat 243. The inclined support base 246 comprises a tapered end and a guide portion, wherein the guide portion is connected to the bottom surface of the tapered end. As Figure 9 a guide hole one 2431 is opened at the center position of the rotating seat 243, which is matched with the guide portion of the inclined support base 246 to guide and limit the up-and-down movement of the inclined support base 246. A guide column 2481 is further arranged on the inner top surface of the mounting cavity, and a guide hole two 2461 is opened on the top surface of the tapered end of the inclined support base 246. The guide column 2481 is matched with the guide hole two 2461 in shape to further guide and limit the up-and-down movement of the inclined support base 246, thereby improving the stability of the movement of the inclined support base 246.

[0062] Further, a matching slot is opened on each outer side surface of the rough positioning seat 248, and an inner clamping plate 250 is movably arranged in the matching slot. The inner side surface of the inner clamping plate 250 is connected with a guide rod, which extends into the mounting cavity inside the rough positioning seat 248 through the rough positioning seat 248. A slanted push block 249 is arranged on the end of the guide rod close to the inclined support base 246. The slanted push block 249 is in contact with the inclined support base 246. The slanted push block 249 is pushed to move horizontally by the up-and-down movement of the inclined support base 246, thereby expanding and contracting the multiple groups of inner clamping plates 250 to clamp and support the end cover body 100 from the inside.

[0063] A spring is sleeved on the guide rod, one side of the spring is in contact with the side wall of the mounting cavity, and the other side is in abutment with the slanted push block 249 to reset the inner clamping plate 250 in the non-clamping state. A slanted surface 247 is arranged on the tapered end of the inclined support base 246 corresponding to each group of slanted push blocks 249. The slanted surface 247 is inclined inward from bottom to top, and the inner side surface of the slanted push block 249 is matched with the slanted surface 247, thereby realizing the conversion from vertical movement to horizontal movement.

[0064] It should be noted that in this embodiment, a wear-resistant pad or a wear-resistant coating is also provided on the outer side of the inner clamping plate 250, which increases the static friction with the end cap body 100 in the clamping state and improves the service life of the inner clamping plate 250.

[0065] Furthermore, such as Figure 8 As shown, a threaded hole 244 is provided at the bottom of the lower clamping base 241. An adjusting member 245 is threadedly connected to the threaded hole 244. The top surface of the adjusting member 245 abuts against the bottom surface of the guide portion of the inclined support base 246. By rotating the adjusting member 245, the inclined support base 246 is pushed to move up and down, thereby driving multiple sets of inner clamping plates 250 to expand or contract, realizing the clamping of the end cap body 100 from the inside out. It should be noted that the adjusting member 245 in this embodiment can be manufactured by bolt cutting, thereby saving costs.

[0066] Furthermore, a limiting groove 2435 is provided at the bottom of the rotating seat 243 corresponding to the guide hole 2431 to limit the upward position of the adjusting part 245, so as to avoid excessive ejection and cause the coarse positioning seat 248 to shift or deform.

[0067] Preferably, in this embodiment, a mounting block 2433 is also installed on one side of the rotating seat 243. A positioning pin 251 is provided on the mounting block 2433. The positioning pin 251 is adapted to the positioning hole 108. An anti-gap groove 2412 is provided on the lower clamping seat 241 at the position corresponding to the mounting block 2433 to facilitate the deflection adjustment of the rear end cover body 100. A T-shaped sliding groove 2432 is also provided on the other side of the rotating seat 243. A rotating rod 252 is slidably installed in the sliding groove 2432. The rotating rod 252 can slide up and down in the sliding groove 2432 to change its position. It can drive the rotating seat 243 to deflect in the axial direction of the rotating seat 243. Limiting plates 2434 are also provided at the upper and lower ends of the sliding groove 2432 to limit the rotating rod 252 and prevent the rotating rod 252 from falling off during processing. Two sets of deflection positioning grooves 2411 are provided at the corresponding positions of the lower clamp 241. The two sets of deflection positioning grooves 2411 are rotatably arranged around the central axis of the rotating groove 242, and the rotation angle is consistent with the rotation angle between the two sets of reinforcing tables 103 (different angles can be designed according to different products). During the processing, after one set of thread turning is completed, the rotating rod 252 drives the rotating seat 243 to deflect, and the deflection positioning grooves 2411 at the corresponding positions limit the movement, so as to achieve precise adjustment of the position of the second set of thread processing.

[0068] Furthermore, a through groove is provided between the two sets of deflection positioning grooves 2411 to facilitate the transfer of the rotating rod 252.

[0069] It needs to be further explained that the lower clamping piece 24 also includes a plug rod 253, which is used to limit the rotation of the rotating rod 252 along the axis of the rotating seat 243 when threading the air inlet 104 and the air outlet 105, to avoid displacement of the rotating rod 252 during turning rotation, affecting the stability of clamping. The material of the plug rod 253 in this embodiment includes but is not limited to rubber, elastomer, etc., to realize vibration absorption during low-speed rotation of the lathe 1, and further ensure the stability of the limiting of the rotating rod 252.

[0070] When using the cutting device of the present embodiment, first, the cutting tool 2 is inserted into the three-jaw chuck of the lathe 1 through the clamping column 21 for clamping, then the lengthening screw 224 is rotated to move the upper clamping piece 23, and when the distance between the upper clamping piece 23 and the lower clamping piece 24 is sufficient, the end cover body 100 is sleeved on the rough positioning seat 248 of the lower clamping piece 24, and the positioning pin 251 corresponds to the positioning hole 108, then the adjusting piece 245 is rotated to push the inclined support base 246, the inclined support base 246 extrudes the inclined push block 249, and then drives multiple groups of inner clamping plates 250 to expand outward, and tightly contacts with the inner wall of the air outlet cavity 107 of the end cover body 100, realizing internal clamping of the end cover body 100, then the lengthening screw 224 is rotated again to move the upper clamping piece 23, and the lower clamping piece 24 is used to clamp the end cover body 100 externally (wherein the rotating rod 252 is located in one deflection positioning groove 2411, and is limited by the plug rod 253), the lathe 1 is started, the air inlet 104 or the air outlet 105 is threaded by adjusting the tool bit 11, after threading the air inlet 104 or the air outlet 105, the plug rod 253 is removed, the rotating rod 252 is pushed to move, then the rotating rod 252 pushes the rotating seat 243 to shift to the next machining position through the rotating rod 252, then the rotating rod 252 is inserted into the corresponding deflection positioning groove 2411, and is limited by the plug rod 253, the lathe 1 is started to machine the external threads of the air outlet 105 or the air inlet 104.

[0071] The embodiment is characterized in that the adjusting piece 245 is arranged to push the inclined support base 246, the inclined support base 246 is arranged to press the inclined pushing block 249, and the plurality of inner clamping plates 250 are driven to expand outward, the end cover body 100 is clamped from inside, the upper clamping disc 233 and the rotating seat 243 are further arranged to clamp the outside of the end cover body 100, the inside and outside clamping cooperation stably clamps the end cover body 100 on the cutting tool 2, and the sufficient stability of the end cover body 100 during machining is ensured. The inside and outside clamping combination avoids the end cover body 100 from being deviated from the rotating shaft of the three-jaw chuck of the lathe 1 when the cutting head 11 is cut and forced, and further ensures the accuracy of the machining of the outer thread of the air inlet 104 or the air outlet 105, and the accurate transformation of the machining position of the air inlet 104 or the air outlet 105, saves the adjustment time, and improves the machining efficiency.

[0072] The inside clamping mode of the plurality of inner clamping plates 250 expanding outward can clamp the end cover body 100 with different sizes of air outlet cavities 107, and can flexibly and stably clamp different individuals of the same size type product, has stronger adaptability, and saves cost.

[0073] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, and a particular orientation configuration and operation, therefore, it cannot be understood as a limitation on the present application. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0074] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0075] The above has been described in detail one embodiment of the present application, but the content is only the preferred embodiment of the present application, cannot be considered for limiting the scope of the present application. Any equivalent changes and improvements made in the scope of the present application, should still belong to the scope of the present application.

Claims

1. A cutting device of a compressor end cover for machining an end cover body (100) comprising a lathe (1), characterized in that, The three-jaw chuck of the lathe (1) is provided with a cutting tool (2), which flexibly clamps the end cover body (100); The cutting tool (2) comprises a clamping column (21) and a clamping assembly (22), and the clamping assembly (22) is connected to the clamping column (21); The clamping assembly (22) comprises: A clamping disc (221) fixed on the clamping column (21); An upper clamping piece (23) movably arranged on the clamping disc (221); And a lower clamping piece (24) fixedly arranged on the clamping disc (221); The lower clamping piece (24) internally clamps the end cover body (100), and cooperates with the upper clamping piece (23) to externally clamp the end cover body (100); The lower clamping piece (24) comprises a lower clamping seat (241), a rotating groove (242) is formed in the lower clamping seat (241), a rotating seat (243) is movably arranged in the rotating groove (242), and a rough positioning seat (248) is installed on the rotating seat (243); an installation cavity is formed in the rough positioning seat (248), a diagonal support base (246) is arranged in the installation cavity, the diagonal support base (246) is slidably installed on the rotating seat (243); a plurality of outer side surfaces of the rough positioning seat (248) are provided with cooperating grooves, an inner clamping plate (250) is movably arranged in the cooperating grooves, a guide rod is connected to the inner side surface of the inner clamping plate (250), the guide rod penetrates through the rough positioning seat (248) and is connected with a diagonal push block (249), and the diagonal push block (249) is in contact with the diagonal support base (246); a threaded hole (244) is formed in the bottom of the lower clamping seat (241), an adjusting piece (245) is threadedly connected in the threaded hole (244), and the top surface of the adjusting piece (245) is in abutment with the diagonal support base (246); the diagonal support base (246) is moved by rotating the adjusting piece (245); A T-shaped sliding groove (2432) is formed in the other side of the rotating seat (243), a rotating rod (252) is slidably installed in the sliding groove (2432), two groups of deflection positioning grooves (2411) are formed in the lower clamping seat (241), and the rotating rod (252) drives the rotating seat (243) to deflect and is limited by the deflection positioning grooves (2411) at the corresponding positions.

2. A cutting device for compressor end covers as defined in claim 1, wherein, A through moving groove (222) and a plug-in groove (225) are formed in the clamping disc (221), and the plug-in groove (225) and the moving groove (222) are perpendicular to each other; Two fixed plates (223) are symmetrically arranged at the two ends of the moving groove (222), an elongated screw rod (224) is threadedly installed between the two fixed plates (223), the lower clamping piece (24) is fixed in the plug-in groove (225), and the upper clamping piece (23) is movably installed on the elongated screw rod (224).

3. A cutting apparatus for compressor end covers as defined in claim 2 wherein, The upper clamping piece (23) comprises an upper clamping block (231) which is threadedly connected to the lengthened screw rod (224), and the upper clamping block (231) is fixedly connected with an upper clamping seat (232), one side of the upper clamping seat (232) is provided with a mounting groove, and the upper clamping disc (233) is rotatably mounted in the mounting groove.

4. The cutting apparatus for compressor end covers of claim 1, wherein, One side of the rotating seat (243) is provided with a mounting block (2433), and the mounting block (2433) is provided with a positioning pin (251); The two groups of deflection positioning grooves (2411) are rotationally arranged around the central axis of the rotating groove (242), and the rotating rod (252) is matched with the deflection positioning groove (2411).

5. A cutting device for compressor end covers as defined in claim 4 wherein, The lower clamping piece (24) further comprises a plug rod (253) which is used for limiting the rotating rod (252) along the axis direction of the rotating seat (243) during turning machining.

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