A polishing and grinding integrated device for machining metal pipes for machinery

Abstract

The application discloses a polishing and polishing integrated equipment for metal pipe machining of machinery, and relates to the technical field of machining. The polishing and polishing integrated equipment for metal pipe machining of machinery comprises an equipment bottom plate, a polishing equipment main body, a guide wheel equipment main body, a bearing frame, a guide frame, a polishing grinding head, a lifting unit and a positioning unit, the equipment bottom plate is used for providing support for the whole equipment, and a workpiece supporting plate is arranged on the equipment bottom plate. The polishing and polishing integrated equipment for metal pipe machining of machinery integrates polishing and polishing in the metal pipe machining process, reduces the labor input, and improves the machining efficiency; through the design of the lifting unit and the positioning unit, the polishing grinding head is conveniently installed and positioned, the height is conveniently adjusted, and thus the polishing and polishing of metal pipes of different types and categories can be conveniently achieved, the operation is convenient, the structure is simple, and the equipment is easy to maintain and overhaul.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a grinding and polishing integrated device for machining mechanical metal pipes. Background Art

[0002] The main purpose of grinding is to remove burrs, rust spots, stains and uneven parts on the surface of metal pipes to make them initially smooth. Polishing is to further improve the smoothness and glossiness of the metal pipe surface on the basis of grinding.

[0003] At present, the existing metal pipe processing equipment usually requires the use of two sets of dedicated grinding and polishing equipment during the grinding and polishing process. During the operation, after the grinding is completed, the semi-finished metal pipe is moved to the polishing equipment for the next step. This operation has the following shortcomings:

[0004] First, grinding and polishing are two steps, and the metal pipe needs to be transferred during the operation, which increases manpower input and reduces processing efficiency;

[0005] Second, due to the wide variety of metal pipe models, the polishing head in the existing technology is not easy to replace and the operation is not convenient enough. At the same time, the equipment is complex and not easy to perform regular inspection and maintenance. In response to the shortcomings of the existing technology, the present invention provides an integrated grinding and polishing equipment for mechanical metal pipe processing to solve the above problems. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides an integrated grinding and polishing equipment for mechanical metal pipe processing. First, the grinding equipment main body and the guide wheel equipment main body are used to realize the transfer and preliminary grinding of the metal pipe, and then cooperate with the supporting function of the supporting frame and the polishing function of the guide frame and the polishing grinding head to integrate the grinding and polishing of the metal pipe processing process, reduce manpower input and improve processing efficiency; second, through the design of the lifting unit and the positioning unit, the installation and positioning of the polishing grinding head are convenient, and the height adjustment is convenient, so that it can adapt to the polishing processing of metal pipes of different models and types, and is easy to operate. At the same time, the structure is simple and easy to inspect and maintain.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an integrated grinding and polishing device for mechanical metal pipe processing, comprising a device base plate, a grinding device body, a guide wheel device body, a carrier frame, a guide frame, a polishing grinding head, a lifting unit and a positioning unit;

[0008] The equipment base plate is used to provide support for the entire equipment, and a workpiece support plate is provided on the equipment base plate;

[0009] The grinding device body is arranged on the device bottom plate, and the grinding device body is provided with a high-speed grinding wheel;

[0010] A guide wheel device body is arranged on the device base plate, and a slow guide wheel is arranged on the guide wheel device body;

[0011] A bearing frame is arranged on the device base plate and used for supporting the metal pipe;

[0012] A guide frame is arranged on the device base plate;

[0013] A polishing grinding head is arranged on the guide frame and used for polishing the metal pipe;

[0014] A lifting unit is arranged on the guide frame and used for adjusting the height of the polishing grinding head;

[0015] A positioning unit is arranged on the lifting unit and used for positioning the polishing grinding head.

[0016] Preferably, the lifting unit comprises:

[0017] A third electric push rod is arranged on the guide frame;

[0018] A lifting platform is arranged on the output end of the third electric push rod and is slidingly connected to the guide frame, and the polishing grinding head is arranged below the lifting platform.

[0019] Preferably, the positioning unit comprises:

[0020] A clamping seat is arranged on the lifting platform;

[0021] A positioning platform is arranged on the polishing grinding head, and a clamping block is arranged on the positioning platform and movably clamped in the clamping seat;

[0022] A locking assembly is arranged on the clamping seat and used for locking the position of the positioning platform.

[0023] Preferably, a clamping groove is arranged on the clamping block, and the locking assembly comprises:

[0024] A rotating arm is rotatably connected to the clamping seat;

[0025] A locking head is arranged on the rotating arm and movably clamped in the clamping groove;

[0026] A first spring is arranged between the rotating arm and the clamping seat.

[0027] Preferably, a pressing unit is arranged between the clamping seat and the lifting platform, and the pressing unit comprises:

[0028] A sleeve seat is arranged on the lifting platform;

[0029] A second spring is arranged in the sleeve seat;

[0030] A sliding rod is connected to the inside of the sleeve base and connected with the second spring, and the clamping base is fixedly connected to the sliding rod.

[0031] Preferably, the device base is provided with a polishing device rack, the polishing device rack is provided with a first electric push rod, and the polishing device body is slidably connected to the polishing device rack and arranged at the output end of the first electric push rod.

[0032] Preferably, the device base is provided with a guide wheel device rack, the guide wheel device rack is provided with a second electric push rod, and the guide wheel device body is slidably connected to the guide wheel device rack and arranged at the output end of the second electric push rod.

[0033] Preferably, the bearing frame is provided with a plurality of groups of bottom supporting wheels.

[0034] Preferably, the lifting platform is provided with a lateral supporting pipe, and the lateral supporting pipe is sleeved on the guide frame.

[0035] Preferably, the high-speed grinding wheel and the polishing grinding head are provided with water cooling components.

[0036] The application discloses a polishing and grinding integrated device for machining metal pipes for machinery, which has the following beneficial effects:

[0037] 1. The polishing and grinding integrated device for machining metal pipes for machinery, first, the cooperation of the polishing device body and the guide wheel device body realizes the transfer and preliminary polishing of the metal pipe, and the bearing of the bearing frame and the polishing effect of the polishing grinding head make the polishing and grinding of the metal pipe machining process integrated, reduce the labor input, and improve the processing efficiency; second, the design of the lifting unit and the positioning unit makes the installation and positioning of the polishing grinding head convenient, the height is easy to adjust, so as to adapt to the polishing and machining of metal pipes of different types, convenient operation, simple structure, easy to maintain and repair.

[0038] 2. The polishing and grinding integrated device for machining metal pipes for machinery, the structure of the positioning unit is compact and convenient to use, the design of the positioning unit makes the installation and positioning of the polishing grinding head convenient, and the replacement of the polishing grinding head is convenient, so that the polishing grinding head of the appropriate type is replaced to adapt to metal pipes of various types, when the polishing grinding head is installed, the positioning table on the polishing grinding head of the corresponding type is clamped on the clamping base, that is, the clamping block is aligned with the inside of the clamping base, finally, the position is locked by using the locking assembly, and the operation is convenient.

[0039] 3、The polishing and grinding integrated equipment for machining metal pipes for machinery, through the design of the abutting unit, the lifting unit controls the height adjustment of the polishing grinding head, and in the extrusion polishing process of the polishing grinding head and the metal pipe, the pressure between the polishing grinding head and the metal pipe after the polishing grinding head extrudes the metal pipe is generated, ensuring good fitting state, thus improving the polishing effect and avoiding the phenomenon of poor polishing effect caused by gaps. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0041] Figure 1 It is a first perspective view of the overall structure of the present application.

[0042] Figure 2 It is a second perspective view of the overall structure of the present application.

[0043] Figure 3 It is a side view of the present application.

[0044] Figure 4 It is a structure schematic diagram of the lifting unit of the present application.

[0045] Figure 5 It is a structure schematic diagram of the abutting unit of the present application.

[0046] Figure 6 It is a disassembly schematic diagram of the polishing grinding head of the present application.

[0047] Figure 7 It is a structure schematic diagram of the locking assembly of the present application.

[0048] In the figure: 1, equipment bottom plate; 11, workpiece supporting plate; 2, polishing equipment main body; 21, high-speed grinding wheel; 22, polishing equipment rack; 23, first electric push rod; 3, guide wheel equipment main body; 31, slow guide wheel; 32, guide wheel equipment rack; 33, second electric push rod; 4, bearing frame; 41, bottom supporting wheel; 5, guide frame; 6, polishing grinding head; 7, lifting unit; 71, third electric push rod; 72, lifting table; 721, lateral support pipe; 8, positioning unit; 81, clamping seat; 82, positioning table; 821, clamping block; 822, clamping groove; 83, locking assembly; 831, rotating arm; 832, lock head; 833, first spring; 9, abutting unit; 91, sleeve seat; 92, second spring; 93, sliding rod. DETAILED DESCRIPTION

[0049] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0050] The polishing and grinding integrated equipment for machining metal pipes for machinery provided by the embodiments of the present application solves the problem that the existing metal pipe machining equipment usually operates in two steps of grinding and polishing, the metal pipes need to be transported during the operation process, the labor input is increased, the machining efficiency is reduced, the polishing heads in the prior art are not easy to replace, the operation is not convenient, the equipment is complex, and the equipment is not easy to maintain regularly.

[0051] In order to better understand the above technical solutions, the above technical solutions will be described in detail in combination with the drawings of the specification and specific embodiments.

[0052] Embodiment 1:

[0053] The embodiments of the present application disclose a polishing and grinding integrated equipment for machining metal pipes for machinery, according to the attached Figures 1-7 As shown in the figure, it comprises a device bottom plate 1, a grinding device main body 2, a guide wheel device main body 3, a bearing frame 4, a guide frame 5, a polishing grinding head 6, a lifting unit 7 and a positioning unit 8;

[0054] The device bottom plate 1 is used to provide support for the whole device, and a workpiece supporting plate 11 is arranged on the device bottom plate 1; the top of the workpiece supporting plate 11 is provided as an inclined surface to provide support and limit for the metal pipe;

[0055] The grinding device main body 2 is arranged on the device bottom plate 1, and a high-speed grinding wheel 21 is arranged on the grinding device main body 2; the grinding device main body 2 drives the high-speed grinding wheel 21 to rotate at high speed, thereby realizing the grinding operation on the metal pipe;

[0056] The guide wheel device main body 3 is arranged on the device bottom plate 1, and a slow-speed guide wheel 31 is arranged on the guide wheel device main body 3; the guide wheel device main body 3 is used to drive the slow-speed guide wheel 31 to rotate, and there is an included angle between the slow-speed guide wheel 31 and the metal pipe, so that the slow-speed guide wheel 31 is used to guide the metal pipe to rotate and move forward along the axial direction, thereby realizing the continuous grinding operation;

[0057] The bearing frame 4 is arranged on the device bottom plate 1 and is used to support the metal pipe; the bearing frame 4 is used to guide the axial movement of the metal pipe;

[0058] The guide frame 5 is arranged on the device bottom plate 1; the guide frame 5 is used to provide support for the polishing grinding head 6, the lifting unit 7 and the positioning unit 8;

[0059] The polishing grinding head 6 is arranged on the guide frame 5 and is used for polishing the metal pipe; the polishing grinding head 6 is arranged in multiple types, so as to realize polishing of multiple types of metal pipes, thereby realizing polishing and grinding integration of the metal pipe;

[0060] The lifting unit 7 is arranged on the guide frame 5 and is used for adjusting the height of the polishing grinding head 6;

[0061] The positioning unit 8 is arranged on the lifting unit 7 and is used for positioning the polishing grinding head 6.

[0062] The high-speed grinding wheel 21 and the polishing grinding head 6 are both provided with water spraying cooling components, which are used for reducing the temperature on the high-speed grinding wheel 21 and the polishing grinding head 6, and improving the service life of the high-speed grinding wheel 21 and the polishing grinding head 6.

[0063] The lifting unit 7 comprises:

[0064] The third electric push rod 71 is arranged on the guide frame 5;

[0065] The lifting platform 72 is arranged on the output end of the third electric push rod 71 and is slidingly connected to the guide frame 5, and the polishing grinding head 6 is arranged below the lifting platform 72.

[0066] The lifting unit 7 has a simple structure, when it is necessary to control the height of the polishing grinding head 6 through the lifting unit 7, the third electric push rod 71 is directly driven to work to drive the lifting platform 72 to move, so that the polishing grinding head 6 is driven by the lifting platform 72 to move, thereby realizing adjustment of the height of the polishing grinding head 6.

[0067] The lifting platform 72 is provided with a lateral support pipe 721, which is sleeved on the guide frame 5; through the design of the lateral support pipe 721, the lifting platform 72 is laterally supported and stably stressed when sliding along the guide frame 5 and adjusting the height.

[0068] The positioning unit 8 comprises:

[0069] The clamping seat 81 is arranged on the lifting platform 72;

[0070] The positioning platform 82 is arranged on the polishing grinding head 6, and the positioning platform 82 is provided with a clamping block 821 which is movably clamped in the clamping seat 81;

[0071] The locking assembly 83 is arranged on the clamping seat 81 and is used for locking the position of the positioning platform 82.

[0072] The positioning unit 8 has a compact structure and is convenient to use; through the design of the positioning unit 8, the polishing grinding head 6 is conveniently installed and positioned, thereby ensuring convenient replacement of the polishing grinding head 6, so that a polishing grinding head 6 of a suitable type is replaced to adapt to multiple types of metal pipes;

[0073] When the polishing grinding head 6 is installed, the positioning table 82 on the corresponding type of polishing grinding head 6 is directly clamped on the clamping seat 81, that is, the clamping block 821 is aligned and clamped in the inside of the clamping seat 81, and finally the position is locked by using the locking assembly 83;

[0074] The clamping block 821 is provided with a clamping groove 822, and the locking assembly 83 comprises:

[0075] The rotating arm 831 is rotationally connected to the clamping seat 81;

[0076] The lock head 832 is arranged on the rotating arm 831 and movably clamped in the clamping groove 822;

[0077] The first spring 833 is arranged between the rotating arm 831 and the clamping seat 81.

[0078] When the positioning table 82 is clamped on the clamping seat 81 and locked by using the locking assembly 83, first, the rotating arm 831 is pressed, so that the rotating arm 831 itself rotates to extrude the first spring 833 and drive the lock head 832 to be lifted, at this time, the clamping block 821 on the positioning table 82 is butted with the clamping seat 81, after the butt joint is completed, the rotating arm 831 is released, at this time, the first spring 833 is reset, the first spring 833 is stretched and pushes the rotating arm 831 to move, so that the rotating arm 831 drives the lock head 832 to move, finally the lock head 832 is clamped in the clamping groove 822, the position locking of the clamping block 821 and the clamping seat 81 is realized, and then the position clamping and locking between the clamping seat 81 and the positioning table 82 is realized, so that the quick installation of the polishing grinding head 6 is realized.

[0079] The clamping seat 81 and the lifting table 72 are provided with a abutting unit 9, and the abutting unit 9 comprises:

[0080] The sleeve seat 91 is arranged on the lifting table 72;

[0081] The second spring 92 is arranged in the inside of the sleeve seat 91;

[0082] The sliding rod 93 is slidingly connected in the inside of the sleeve seat 91 and connected with the second spring 92, and the clamping seat 81 is fixedly connected on the sliding rod 93.

[0083] Through the design of the abutting unit 9, the lifting unit 7 controls the height adjustment of the polishing grinding head 6, and in the extrusion polishing process of the polishing grinding head 6 and the metal pipe, the pressure between the polishing grinding head 6 and the metal pipe after the polishing grinding head 6 extrudes the metal pipe is generated, so that the good fitting state is ensured, thus the polishing effect is improved, and the phenomenon that the polishing effect is poor due to the gap is avoided;

[0084] When the polishing grinding head 6 is in contact with the metal pipe and is pressed by the lifting unit 7, the polishing grinding head 6 drives the sliding rod 93 to slide along the inside of the clamping seat 81 and press the second spring 92, and the elastic force of the second spring 92 acts on the sliding rod 93 after being compressed, so that the sliding rod 93, the clamping seat 81, the positioning table 82 and the polishing grinding head 6 are well fitted with the metal pipe and are not easy to loosen, thereby achieving good polishing effect.

[0085] Embodiment 2:

[0086] The embodiment of the application discloses a polishing and grinding integrated equipment for metal pipe processing for machinery, according to the attached Figures 1-7 As shown in the figure, it comprises an equipment base plate 1, a grinding equipment main body 2, a guide wheel equipment main body 3, a bearing frame 4, a guide frame 5, a polishing grinding head 6, a lifting unit 7 and a positioning unit 8.

[0087] The equipment base plate 1 is used for providing support for the whole equipment, and a workpiece supporting plate 11 is arranged on the equipment base plate 1; the top of the workpiece supporting plate 11 is provided as an inclined surface to provide support and limit for the metal pipe.

[0088] The grinding equipment main body 2 is arranged on the equipment base plate 1, and a high-speed grinding wheel 21 is arranged on the grinding equipment main body 2; the grinding equipment main body 2 drives the high-speed grinding wheel 21 to rotate at high speed, thereby realizing the grinding operation on the metal pipe.

[0089] The guide wheel equipment main body 3 is arranged on the equipment base plate 1, and a slow-speed guide wheel 31 is arranged on the guide wheel equipment main body 3; the guide wheel equipment main body 3 is used for driving the slow-speed guide wheel 31 to rotate, and there is an included angle between the slow-speed guide wheel 31 and the metal pipe, so that the slow-speed guide wheel 31 is used for guiding the metal pipe to rotate and move forward along the axial direction, thereby realizing the continuous grinding operation.

[0090] The bearing frame 4 is arranged on the equipment base plate 1 and is used for supporting the metal pipe; the bearing frame 4 is used for guiding the axial movement of the metal pipe.

[0091] The guide frame 5 is arranged on the equipment base plate 1; the guide frame 5 is used for providing support for the polishing grinding head 6, the lifting unit 7 and the positioning unit 8.

[0092] The polishing grinding head 6 is arranged on the guide frame 5 and is used for polishing the metal pipe; the polishing grinding head 6 is provided in multiple types, so as to realize the polishing of metal pipes of multiple types, thereby realizing the polishing and grinding integrated processing of the metal pipe.

[0093] The lifting unit 7 is arranged on the guide frame 5 and is used for adjusting the height of the polishing grinding head 6.

[0094] The positioning unit 8 is arranged on the lifting unit 7 and is used for positioning the polishing grinding head 6.

[0095] The device bottom plate 1 is provided with a polishing device rack 22, the first electric push rod 23 is arranged on the polishing device rack 22, the polishing device main body 2 is slidably connected to the polishing device rack 22 and arranged at the output end of the first electric push rod 23, the position of the polishing device main body 2 and the high-speed grinding wheel 21 is adjusted conveniently through the design of the polishing device rack 22 and the first electric push rod 23, and then the metal pipe processing of various diameters is conveniently adapted.

[0096] The device bottom plate 1 is provided with a polishing device rack 22, the first electric push rod 23 is arranged on the polishing device rack 22, the polishing device main body 2 is slidably connected to the polishing device rack 22 and arranged at the output end of the first electric push rod 23, the position of the polishing device main body 2 and the high-speed grinding wheel 21 is adjusted conveniently through the design of the polishing device rack 22 and the first electric push rod 23, and then the metal pipe processing of various diameters is conveniently adapted.

[0097] The bearing frame 4 is provided with a plurality of groups of bottom supporting wheels 41, and the plurality of groups of bottom supporting wheels 41 make the bearing frame 4 have good supporting property for the metal pipe.

[0098] It should be noted that, in this text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another same element in the process, method, article or equipment including the element.

[0099] The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An integrated grinding and polishing device for machining metal pipes for machinery, characterized in that: Include: The device bottom plate (1) is used to provide support for the whole device, and the workpiece supporting plate (11) is arranged on the device bottom plate (1); The polishing equipment main body (2) is arranged on the device bottom plate (1), and the high-speed grinding wheel (21) is arranged on the polishing equipment main body (2); The guide wheel equipment main body (3) is arranged on the device bottom plate (1), and the slow guide wheel (31) is arranged on the guide wheel equipment main body (3); The bearing frame (4) is arranged on the device bottom plate (1) and is used to support the metal pipe; The guide frame (5) is arranged on the device bottom plate (1); The polishing grinding head (6) is arranged on the guide frame (5) and is used to polish the metal pipe; The lifting unit (7) is arranged on the guide frame (5) and is used to adjust the height of the polishing grinding head (6); The positioning unit (8) is arranged on the lifting unit (7) and is used to position the polishing grinding head (6); The positioning unit (8) comprises: The clamping seat (81) is arranged on the lifting unit (7); The positioning table (82) is arranged on the polishing grinding head (6), the clamping block (821) is arranged on the positioning table (82), and the clamping block (821) is movably clamped in the clamping seat (81); The locking assembly (83) is arranged on the clamping seat (81) and is used to lock the position of the positioning table (82); The clamping block (821) is provided with a clamping groove (822), and the locking assembly (83) comprises: The rotating arm (831) is rotatably connected to the clamping seat (81); The lock head (832) is arranged on the rotating arm (831) and movably clamped in the clamping groove (822); The first spring (833) is arranged between the rotating arm (831) and the clamping seat (81); The clamping seat (81) and the lifting table (72) are provided with the abutting unit (9), and the abutting unit (9) comprises: The sleeve seat (91) is arranged on the lifting table (72); The second spring (92) is arranged in the sleeve seat (91); The sliding rod (93) is slidably connected in the sleeve seat (91) and connected with the second spring (92), and the clamping seat (81) is fixedly connected to the sliding rod (93).

2. The polishing and grinding integrated apparatus for processing a metal pipe for a machine according to claim 1, characterized in that, The lifting unit (7) comprises: The third electric push rod (71) is arranged on the guide frame (5); The lifting table (72) is arranged on the output end of the third electric push rod (71) and is slidably connected to the guide frame (5), and the polishing grinding head (6) is arranged below the lifting table (72).

3. The polishing and grinding integrated apparatus for processing a metal pipe for a machine according to claim 1, characterized in that, The device bottom plate (1) is provided with a polishing equipment rack (22), the polishing equipment rack (22) is provided with a first electric push rod (23), the polishing equipment main body (2) is slidably connected to the polishing equipment rack (22) and is arranged at the output end of the first electric push rod (23).

4. The polishing and grinding integrated apparatus for processing a metal pipe for a machine according to claim 3, characterized in that, The device bottom plate (1) is provided with a guide wheel equipment rack (32), the guide wheel equipment rack (32) is provided with a second electric push rod (33), and the guide wheel equipment main body (3) is slidably connected to the guide wheel equipment rack (32) and is arranged at the output end of the second electric push rod (33).

5. The polishing and grinding integrated apparatus for processing a metal pipe for a machine according to claim 1, characterized in that, The bearing frame (4) is provided with a plurality of groups of bottom supporting wheels (41).

6. The polishing and grinding integrated apparatus for processing a metal pipe for a machine according to claim 2, characterized in that, The lifting platform (72) is provided with a lateral supporting pipe (721) which is sleeved on the guide frame (5).

7. The polishing and grinding integrated apparatus for processing a metal pipe for a machine according to claim 1, characterized in that, The high-speed grinding wheel (21) and the polishing grinding head (6) are both provided with water spraying cooling assemblies.

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