Compressor end cover and cutting device thereof

Abstract

The invention discloses a compressor end cover and a cutting device thereof, and relates to the technical field of metal machining, the compressor end cover comprises an end cover body, the cutting device is used for machining the end cover body, the compressor end cover 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, a clamping rod and a clamping rod, wherein the clamping disc is fixed to the clamping column; the upper clamping piece is movably arranged on the clamping disc, and the lower clamping piece is movably arranged on the clamping disc; the lower clamping piece is fixedly arranged on the clamping disc; the upper clamping piece is fixedly arranged on the clamping disc; the lower clamping piece clamps the interior of the end cover body and cooperates with the upper clamping piece to clamp the exterior of the end cover body, the end cover body is flexibly clamped through the cutting tool, the clamping angle of the end cover body is flexibly adjusted, and external thread turning operation of an air inlet and an air outlet is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and particularly relates to a compressor end cover and a cutting device thereof. Background Art

[0002] An automotive air-conditioning compressor is a core component of an automotive air-conditioning system, and its function is to achieve a heat exchange cycle by compressing a refrigerant. As a key structural component of the automotive air-conditioning compressor, the upper end cover of the compressor usually needs to machine external threads on the outer shaft surfaces of the air inlet and the air outlet to meet the requirements of direct sealing connection with the pipeline system. Since the upper end cover is a rotary body part, in the existing processing technology, the external threads of the air inlet and the air outlet are usually machined by turning. And in small-scale production enterprises, limited by equipment costs (such as the low popularity rate of numerical control machining centers or five-axis lathes), it usually relies on ordinary lathes to complete.

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

[0004] 1. Low efficiency caused by multiple clamping: To complete the machining of two sets of threads, it is usually necessary to manually disassemble the workpiece on the three-jaw chuck of an ordinary lathe and re-adjust the clamping angle. The operation is cumbersome and time-consuming, resulting in an extended single-piece processing cycle and difficulty in improving production efficiency.

[0005] 2. Difficulty in ensuring positioning accuracy: During the repeated clamping process, the repeated positioning error of the workpiece easily leads to machining deviations of the two sets of threads, not meeting the dimensional requirements.

[0006] 3. Coexistence of labor costs and quality risks: The method of relying on the operator's experience to adjust the clamping angle not only has high requirements for manual skills, but also has the risk of quality fluctuations in mass production. Summary of the Invention

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

[0008] 1. The problem of low efficiency caused by multiple clamping for machining two sets of threads by an ordinary lathe.

[0009] 2. The problem that during the repeated clamping process, the repeated positioning error of the workpiece easily leads to machining deviations of the two sets of threads, not meeting the dimensional requirements;

[0010] 3. The problem that manual adjustment of the clamping angle has high requirements for manual skills and has the risk of quality fluctuations in mass production.

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

[0012] A cutting device for a compressor end cover, used for machining the end cover body, includes a lathe. A cutting tooling is arranged on the three-jaw chuck of the lathe, and the cutting tooling flexibly clamps the end cover body.

[0013] The cutting tooling includes a clamping column and a clamping component, and the clamping component is connected to the clamping column.

[0014] The clamping component includes:

[0015] A clamping disc, which is fixed on the clamping column;

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

[0017] And a lower clamping piece, which is 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 invention: A through moving groove and a plug-in groove are formed on the clamping disc, and the plug-in groove is vertically intersected with the moving groove;

[0020] Fixing plates are symmetrically arranged at both ends of the moving groove, and a lengthening screw rod is installed between the two fixing plates in a threaded manner. The lower clamping piece is fixed in the plug-in groove, and the upper clamping piece is movably installed on the lengthening screw rod.

[0021] As a further scheme of the present invention: The upper clamping piece includes an upper clamping block, which is threadedly connected to the lengthening screw rod. The upper clamping block is fixedly connected with an upper clamping seat, and an installation groove is formed on one side of the upper clamping seat. An upper clamping disc is rotatably installed in the installation groove.

[0022] As a further scheme of the present invention: The lower clamping piece includes a lower clamping seat, a rotating groove is formed on the lower clamping seat, a rotating seat is rotatably arranged in the rotating groove, and a rough positioning seat is installed on the rotating seat.

[0023] As a further scheme of the present invention: An installation cavity is formed inside the rough positioning seat, an inclined support base is arranged in the installation cavity, and the inclined support base is slidably installed on the rotating seat;

[0024] A plurality of outer side surfaces of the rough positioning seat are all provided with fitting grooves, inner clamping plates are movably arranged in the fitting grooves, guide rods are connected to the inner side surfaces of the inner clamping plates, the guide rods penetrate through the rough positioning seat and are connected with an inclined push block, and the inclined push block is attached to the inclined support base.

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

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

[0027] As a further solution of the present invention: an installation block is installed on one side of the rotating seat, and a positioning pin is provided on the installation block;

[0028] A T-shaped sliding groove is provided on the other side of the rotating seat, and a rotating rod is slidably installed in the sliding groove. Two groups of deflection positioning grooves are provided on the lower clamp seat, and the two groups of deflection positioning grooves are arranged around the central axis of the rotating groove. The rotating rod is adapted to the deflection positioning groove;

[0029] The rotating rod drives the rotating seat to deflect and is limited by the deflection positioning groove at the corresponding position.

[0030] As a further solution of the present invention: the lower clamping member further includes a plug rod, and the plug rod is used to limit the rotating rod along the axis direction of the rotating seat during turning processing.

[0031] As a further solution of the present invention: a compressor end cover is processed by using the cutting device of the above-mentioned compressor end cover. The compressor end cover includes an end cover body. An end cover top surface is provided on the top surface of the end cover body. Multiple groups of bolt positioning tables are provided on the end cover top surface. Two groups of strengthening platforms are provided on the axial side of the end cover body. An air inlet and an air outlet are respectively provided at the outer ends of the two groups of strengthening platforms. An air inlet cavity and an air outlet cavity are provided on the bottom surface of the end cover body;

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

[0033] As a further solution of the present invention: external threads are processed on the outer shaft surfaces of the air inlet and the air outlet.

[0034] The beneficial effects of the present invention:

[0035] 1. The present invention flexibly clamps the end cover body through a cutting tooling, realizes flexible adjustment of the clamping angle of the end cover body, facilitates the operation of turning external threads on the air inlet and the air outlet. Furthermore, on a common lathe, there is no need to manually disassemble the workpiece and readjust the clamping angle. The operation is simplified, the processing cycle of a single workpiece is shortened, the production efficiency is improved, and the end cover body does not need to be repeatedly clamped, reducing the positioning error and improving the processing accuracy. Further reducing the requirements for manual skills and reducing the risk of quality fluctuations in mass production.

[0036] 2. In the present invention, by providing an adjusting member to push against the inclined support base, the inclined support base squeezes the inclined push block, thereby driving a plurality of inner clamping plates to expand outwards, internally clamping the end cover body, and further cooperating with the upper chuck and the rotating base to clamp the outer side of the end cover body. The combination of internal and external clamping stably clamps the end cover body on the cutting tooling, ensuring sufficient stability of the end cover body during processing. Moreover, the combination of internal clamping and external clamping avoids the slight deviation of the end cover body from the rotation axis of the three-jaw chuck of the lathe when being subjected to the cutting force of the tool tip during turning processing. Further, the internal clamping is combined with the external clamping, and through the precise limitation of the rotating rod and the deflection positioning groove, the accuracy of the external thread processing of the air inlet or air outlet, as well as the precise transformation of the processing position of the air inlet or air outlet, are ensured, saving adjustment time and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 is a schematic diagram of the structure of the cutting tooling of the present invention;

[0040] Figure 3 is a schematic sectional view of the cutting tooling of the present invention;

[0041] Figure 4 is a schematic diagram of the structure of the upper clamping member of the present invention;

[0042] Figure 5 is a schematic diagram of the structure of the lower clamping member of the present invention;

[0043] Figure 6 is a schematic sectional view of the interior of the lower clamping member of the present invention;

[0044] Figure 7 is a schematic diagram of the cooperation structure of the rotating base and the inclined support base of the present invention;

[0045] Figure 8 is a schematic sectional view of the lower clamping member of the present invention;

[0046] Figure 9 is a schematic diagram of the cooperation structure of the rotating base and the lower chuck of the present invention;

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

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

[0049] In the figure: 1. Lathe; 11. Tool bit; 2. Cutting tooling; 21. Clamping column; 22. Clamping assembly; 221. Clamping disc; 222. Moving groove; 223. Fixed plate; 224. Extended screw; 225. Insertion slot; 23. Upper clamping piece; 231. Upper clamping block; 232. Upper clamping seat; 233. Upper clamping disc; 234. Matching arc surface; 24. Lower clamping piece; 241. Lower clamping seat; 2411. Deflection positioning slot; 2412. Relief slot; 242. Rotating groove; 243. Rotating seat; 2431. First guiding hole; 2432. Sliding groove; 2433. Mounting block; 2434. Limiting plate; 2435. Limiting slot; 244. Threaded hole; 245. Adjusting piece; 246. Diagonal support base; 2461. Second guiding hole; 247. Diagonal support surface; 248. Coarse positioning seat; 2481. Guiding column; 249. Diagonal 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 platform; 103. Reinforcing platform; 104. Air inlet; 105. Air outlet; 106. Air inlet cavity; 107. Air outlet cavity; 108. Positioning hole. Detailed implementation mode

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] Embodiment 1

[0052] As Figure 10 and Figure 11As shown in the figure, this embodiment provides a compressor end cover, which includes an end cover body 100. An outwardly convex arc-shaped end cover top surface 101 is provided on the top surface of the end cover body 100. Multiple groups of bolt positioning platforms 102 are arranged on the end cover top surface 101 for connecting with the compressor main body in cooperation with bolts. Two groups of strengthening platforms 103 are arranged on the axial side of the end cover body 100. The two groups of strengthening platforms 103 are rotationally distributed around the vertical axis of the end cover body 100, and the included angle between the two groups of strengthening platforms 103 is designed according to actual requirements. The other end of the strengthening platform 103 extends outward, and the extended end of the strengthening platform 103 is thread-processed to form an air inlet 104 and an air outlet 105. Air channels are provided inside both the air inlet 104 and the air outlet 105, and an air inlet cavity 106 and an air outlet cavity 107 are provided on the bottom surface of the end cover body 100. Among them, the air channel of the air inlet 104 is communicated with the air inlet cavity 106, and the air channel of the air outlet 105 is communicated with the air outlet cavity 107 to realize the air intake and exhaust functions of the compressor. And positioning holes 108 are arranged on both sides of the lower end surface of the end cover body 100 for positioning when connecting with the compressor main body, and the two groups of positioning holes 108 are offset in position for anti-fooling during installation.

[0053] In this embodiment, by directly arranging the air inlet 104 and the air outlet 105 with threaded structures on the axial side of the end cover body 100, the compressor can be directly connected to the external pipeline system without, like the traditional end cover, opening internal threads and setting up connectors to indirectly connect with the external pipeline system. The installation and connection in this embodiment are more convenient, and by setting the strengthening platform 103, the sizes of the air inlet 104 and the air outlet 105 are further enlarged, thereby increasing the air intake and exhaust flow rates inside the compressor and improving the overall performance of the automotive air conditioning system.

[0054] Embodiment Two

[0055] As Figures 1 - 9 shown in the figure, this embodiment provides a cutting device for a compressor end cover, which is used for processing the end cover product of Embodiment One. It includes a lathe 1. A cutting tooling 2 is arranged on the three-jaw chuck of the lathe 1. The end cover body 100 is flexibly clamped through the cutting tooling 2 to realize flexible adjustment of the clamping angle of the end cover body 100, which is convenient for the operation of threading the external threads of the air inlet 104 and the air outlet 105. Thus, on an ordinary lathe, there is no need to manually disassemble the workpiece and readjust the clamping angle. The operation is simplified, the processing cycle of a single workpiece is shortened, the production efficiency is improved, and the end cover body 100 does not need to be repeatedly clamped, reducing the positioning error and improving the processing accuracy. Further reducing the requirements for manual skills and reducing the risk of quality fluctuations in mass production.

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

[0057] Among them, the clamping column 21 is pre-clamped and positioned with the three-jaw chuck of the lathe 1, and there is no need to disassemble it again during the whole processing process. During the processing process, the end cover body 100 is clamped by adjusting the upper clamping member 23 in the clamping assembly 22. When it is necessary to change the clamping angle, the angle deflection is realized by adjusting the lower clamping member 24, which saves the time of installation, disassembly and alignment, and improves the processing efficiency.

[0058] Preferably, as Figure 2 and Figure 3 shown, the clamping assembly 22 in this embodiment further includes a clamping disc 221 fixed on the outer end face of the clamping column 21. A through moving groove 222 is opened in the middle of the clamping disc 221, and a plug-in groove 225 is opened on one side of the clamping disc 221. The plug-in groove 225 is vertically intersected with the moving groove 222, and the bottom of the groove is flush; at both ends of the moving groove 222 and on the clamping disc 221, fixing plates 223 are installed. The two fixing plates 223 are symmetrically distributed about the center line of the clamping disc 221. A lengthening screw 224 is installed in cooperation between the two fixing plates 223, and the lengthening screw 224 is threadedly connected to both fixing plates 223. The lower clamping member 24 is fixed in the plug-in groove 225, and the upper clamping member 23 is movably installed on the lengthening screw 224. By adjusting the lengthening screw 224, the upper clamping member 23 is driven to move, so as to clamp the end cover body 100.

[0059] Preferably, as Figure 3 and Figure 4 shown, the upper clamping member 23 in this embodiment includes an upper clamping block 231 threadedly connected to the lengthening screw 224. On both sides of the tail of the upper clamping block 231, clamping platforms are symmetrically arranged, and clamping positions are symmetrically opened on both sides of the moving groove 222. The two groups of clamping platforms at the tail of the upper clamping block 231 are slidably arranged in the clamping positions, and the upper clamping block 231 is driven to move by the rotation of the lengthening screw 224; an upper clamping seat 232 is fixedly connected to the outer end of the upper clamping block 231. The clamping end of the upper clamping seat 232 is circularly arranged to increase the clamping range. 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 through vent groove is opened in the middle of the bottom of the installation groove to communicate with the outside, which is convenient for exhausting air when the upper clamping disc 233 is installed, facilitating the 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 to expand the contact surface with the end cover top surface 101 and improve the clamping stability.

[0060] Preferably, as Figures 5 - 9 shown, the lower clamping member 24 of this embodiment includes a lower clamping seat 241 fixed in the insertion slot 225, wherein the lower clamping seat 241 is arranged parallel to the upper clamping seat 232 and has the same size. A rotation groove 242 is formed on the side of the lower clamping seat 241 close to the upper clamping member 23, and a rotating seat 243 is rotatably arranged in the rotation groove 242. A rough positioning seat 248 adapted to the air outlet cavity 107 is bolted to the top surface of the rotating seat 243. 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] Furthermore, specifically as Figure 8 shown, an installation cavity is formed inside the rough positioning seat 248, and a diagonal support base 246 is arranged in the installation cavity. The diagonal support base 246 is slidably installed on the rotating seat 243. The diagonal support base 246 includes a conical end and a guiding part, wherein the guiding part is connected to the bottom surface of the conical end. As Figure 9 shown, a guiding hole one 2431 is formed at the central position of the rotating seat 243, and the guiding hole one 2431 is adapted to the guiding part of the diagonal support base 246 to realize the guiding and limiting of the up and down movement of the diagonal support base 246. A guiding post 2481 is further arranged on the inner top surface of the installation cavity, and a guiding hole two 2461 is formed on the top surface of the conical end of the diagonal support base 246. The guiding post 2481 is adapted to the shape of the guiding hole two 2461 to further guide and limit the up and down movement of the diagonal support base 246 and improve the stability of the movement of the diagonal support base 246.

[0062] Furthermore, a mating groove is formed on each outer side surface of the rough positioning seat 248, and an inner clamping plate 250 is movably arranged in the mating groove. A guide rod is connected to the inner side surface of the inner clamping plate 250, and the guide rod penetrates through the rough positioning seat 248 and extends into the installation cavity inside the rough positioning seat 248. A diagonal push block 249 is arranged at one end of the guide rod close to the diagonal support base 246. The diagonal push block 249 is in contact with the diagonal support base 246. The up and down movement of the diagonal support base 246 is used to push the diagonal push block 249 to move horizontally, thereby realizing the expansion and contraction of multiple groups of inner clamping plates 250 to internally clamp and support the end cover body 100.

[0063] A spring is sleeved on the guide rod. One side of the spring is in contact with the side wall of the installation cavity, and the other side is abutted against the diagonal push block 249 to realize the reset of the inner clamping plate 250 in the non-clamping state. And a diagonal support surface 247 is arranged on the conical end of the diagonal support base 246 corresponding to each group of diagonal push blocks 249. The diagonal support surface 247 is inclined inward from bottom to top, and the inner side surface of the diagonal push block 249 is adapted to the diagonal support surface 247, thereby realizing the conversion of vertical movement to horizontal movement.

[0064] It should be noted that 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 cover body 100 in the clamped state and improves the service life of the inner clamping plate 250 at the same time.

[0065] Furthermore, as Figure 8 shown, a threaded hole 244 is provided at the bottom of the lower clamping seat 241, and an adjusting member 245 is threadedly connected in the threaded hole 244. The top surface of the adjusting member 245 abuts against the bottom surface of the guiding 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, and then a plurality of groups of inner clamping plates 250 are driven to expand or contract, so as to realize the clamping of the end cover body 100 from the inside to the outside. It should be noted that the adjusting member 245 in this embodiment can be manufactured by bolt cutting, thereby saving costs.

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

[0067] Preferably, an installation block 2433 is further installed on one side of the rotating seat 243 in this embodiment. A positioning pin 251 is provided on the installation block 2433, and the positioning pin 251 is adapted to the positioning hole 108. A clearance groove 2412 is provided at the position of the lower clamping seat 241 corresponding to the installation block 2433 to facilitate the deflection adjustment of the end cover body 100 after clamping; a T-shaped sliding groove 2432 is further provided on the other side of the rotating seat 243, and 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, and the rotating seat 243 can be driven to deflect in the axial direction of the rotating seat 243. Limiting plates 2434 are further 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 disengaging during the processing. Two groups of deflection positioning grooves 2411 are provided at the corresponding position of the lower clamping seat 241. The two groups of deflection positioning grooves 2411 are arranged around the central axis of the rotating groove 242, and the rotation angle is the same as the rotation angle between the two groups of reinforcing platforms 103 (the angle can be designed differently according to different products). During the processing, when one group of thread turning is completed, the rotating seat 243 is driven to deflect by the rotating rod 252 and is limited by the corresponding deflection positioning groove 2411 to realize the precise adjustment of the second group of thread processing positions.

[0068] Further, a through groove is provided between the two groups of deflection positioning grooves 2411 for communication, which is convenient for the transfer of the rotating rod 252.

[0069] It should be further explained in this embodiment that the lower clamping member 24 further includes a plug rod 253. When threading the air inlet 104 and the air outlet 105 by turning, the plug rod 253 is used to limit the rotation rod 252 in the axial direction of the rotating seat 243, so as to prevent the rotation rod 252 from shifting during the turning rotation, which may affect the clamping stability. The material of the plug rod 253 in this embodiment includes but is not limited to rubber, elastomer, etc., which can absorb the vibration during the low and medium speed rotation of the lathe 1, and further ensure the stability of the limit on the rotation rod 252.

[0070] When using the cutting device of this embodiment, first insert the cutting tooling 2 into the three-jaw chuck of the lathe 1 through the clamping column 21 for clamping. Then rotate the extension screw rod 224 to drive the upper clamping member 23 to move. When the distance between the upper clamping member 23 and the lower clamping member 24 is sufficient, sleuth the end cap body 100 onto the rough positioning seat 248 of the lower clamping member 24, and make the positioning pin 251 correspond to the positioning hole 108. Then rotate the adjusting member 245 to push the inclined support base 246. The inclined support base 246 squeezes the inclined push block 249, thereby driving a plurality of inner clamping plates 250 to expand outwards and tightly adhere to the inner wall of the air outlet cavity 107 of the end cap body 100, realizing the internal clamping of the end cap body 100. Then rotate the extension screw rod 224 again to drive the upper clamping member 23 to move, and cooperate with the lower clamping member 24 to externally clamp the end cap body 100 (initially, the rotation rod 252 is located in a deflection positioning groove 2411 and is limited by the plug rod 253). Start the lathe 1, and thread the air inlet 104 or the air outlet 105 by adjusting the tool bit 11. After threading the air inlet 104 or the air outlet 105, take out the plug rod 253, push the rotation rod 252 to move, and then push the rotating seat 243 to deflect to the next processing position through the rotation rod 252. Then insert the rotation rod 252 into the corresponding deflection positioning groove 2411 and limit it by the plug rod 253. Start the lathe 1 to process the external thread of the air outlet 105 or the air inlet 104.

[0071] In this embodiment, by setting the adjusting member 245 to push against the diagonal bracing base 246, the diagonal bracing base 246 squeezes the diagonal pushing block 249, thereby driving multiple groups of inner clamping plates 250 to expand outwards to perform internal clamping on the end cap body 100. Further, in cooperation with the upper chuck 233 and the rotating base 243, external clamping is performed on the outer side of the end cap body 100. The combination of internal and external clamping stably clamps the end cap body 100 on the cutting tooling 2, ensuring sufficient stability of the end cap body 100 during processing. Moreover, the combination of internal clamping and external clamping avoids a slight deviation of the end cap body 100 from the rotation axis of the three-jaw chuck of the lathe 1 when the cutting tool head 11 applies a cutting force during turning processing. Further, the internal clamping combines with the external clamping, and through the precise limitation of the rotating rod 252 and the deflection positioning groove 2411, it ensures the accuracy of the external thread processing of the air inlet 104 or the air outlet 105, as well as the precise transformation of the processing position of the air inlet 104 or the air outlet 105, saving adjustment time and improving processing efficiency.

[0072] Moreover, through the internal clamping method of expanding multiple groups of inner clamping plates 250 outwards, the end cap body 100 with different sizes of the air outlet cavity 107 can be clamped, and different individuals of the same size type of product can also be clamped flexibly and stably, with stronger adaptability and cost savings.

[0073] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0074] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0075] The above has described in detail an embodiment of the present invention, but the above content is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made in accordance with the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A cutting device for a compressor end cover, which is used to machine an end cover body (100), includes a lathe (1), and is characterized in that, A cutting tooling (2) is arranged on the three-jaw chuck of the lathe (1), and the cutting tooling (2) flexibly clamps the end cover body (100). The cutting tooling (2) includes 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) includes: A clamping disc (221) fixed to the clamping column (21). An upper clamping member (23) movably arranged on the clamping disc (221). And a lower clamping member (24) fixedly arranged on the clamping disc (221). The lower clamping member (24) internally clamps the end cover body (100) and cooperates with the upper clamping member (23) to externally clamp the end cover body (100).

2. The cutting device for the compressor end cover according to 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) intersects the moving groove (222) perpendicularly. Fixing plates (223) are symmetrically arranged at both ends of the moving groove (222), and a lengthening screw rod (224) is installed between the two fixing plates (223) in a threaded manner. The lower clamping member (24) is fixed in the plug-in groove (225), and the upper clamping member (23) is movably installed on the lengthening screw rod (224).

3. The cutting device for a compressor end cover according to claim 2, characterized in that, The upper clamping member (23) includes an upper clamping block (231) threadedly connected to the lengthening screw rod (224). The upper clamping block (231) is fixedly connected to an upper clamping seat (232), and an installation groove is formed on one side of the upper clamping seat (232). An upper clamping disc (233) is rotatably installed in the installation groove.

4. The cutting device for the compressor end cover according to claim 1, characterized in that, The lower clamping member (24) includes a lower clamping seat (241). A rotating groove (242) is formed in the lower clamping seat (241), and a rotating seat (243) is rotatably arranged in the rotating groove (242). A rough positioning seat (248) is installed on the rotating seat (243).

5. The cutting device for a compressor end cover according to claim 4, wherein, An installation cavity is formed inside the rough positioning seat (248), and an inclined support base (246) is arranged in the installation cavity. The inclined support base (246) is slidably installed on the rotating seat (243). Cooperating grooves are formed on multiple outer sides of the rough positioning seat (248), and inner clamping plates (250) are movably arranged in the cooperating grooves. A guide rod is connected to the inner side surface of the inner clamping plate (250), and the guide rod penetrates through the rough positioning seat (248) and is connected to an inclined push block (249). The inclined push block (249) is in contact with the inclined support base (246).

6. The cutting device for the compressor end cover according to claim 5, characterized in that, A threaded hole (244) is formed at the bottom of the lower clamping seat (241), and an adjusting member (245) is threadedly connected in the threaded hole (244). The top surface of the adjusting member (245) abuts against the inclined support base (246). By rotating the adjusting member (245), the inclined support base (246) is pushed to move.

7. The cutting device for the compressor end cover according to claim 5, characterized in that, An installation block (2433) is installed on one side of the rotating seat (243), and a positioning pin (251) is arranged on the installation block (2433). On the other side of the rotating seat (243), a T-shaped sliding groove (2432) is provided. A rotating rod (252) is slidably installed in the sliding groove (2432). Two groups of deflection positioning grooves (2411) are provided on the lower clamping seat (241). The two groups of deflection positioning grooves (2411) are arranged around the central axis of the rotating groove (242). The rotating rod (252) is adapted to the deflection positioning grooves (2411). The rotating rod (252) drives the rotating seat (243) to deflect and is limited by the deflection positioning grooves (2411) at corresponding positions.

8. The cutting device for the compressor end cover according to claim 7, wherein, The lower clamping member (24) further includes a plug rod (253). The plug rod (253) is used to limit the rotating rod (252) in the axial direction of the rotating seat (243) during turning processing.

9. A compressor end cover, characterized in that, When machining with the cutting device for a compressor end cover according to any one of claims 1-8, the compressor end cover includes an end cover body (100). A top surface of the end cover body (100) is provided with an end cover top surface (101). A plurality of bolt positioning platforms (102) are provided on the end cover top surface (101). Two reinforcing platforms (103) are provided on the axial side of the end cover body (100). An air inlet (104) and an air outlet (105) are respectively provided at the outer ends of the two reinforcing platforms (103). An air inlet cavity (106) and an air outlet cavity (107) are provided on the bottom surface of the end cover body (100). An air passage of the air inlet (104) is communicated with the air inlet cavity (106), and an air passage of the air outlet (105) is communicated with the air outlet cavity (107).

10. The compressor end cover according to claim 9, characterized in that, External threads are machined on the outer axial surfaces of the air inlet (104) and the air outlet (105).

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