Test piece polishing, assembling and positioning tool and working method

Abstract

The invention relates to the technical field of steel structure construction, and particularly discloses a test piece polishing, assembling and positioning tool and a working method. The tool is used for processing a test piece, and the test piece is a test plate or a pipe; the tool comprises a base, a V-shaped piece, two plate-shaped pieces, two first clamping pieces and two second clamping pieces, wherein the V-shaped piece, the two plate-shaped pieces, the two first clamping pieces and the two second clamping pieces are arranged on the base. A positioning through groove is defined by the base and the two plate-shaped pieces, and the two plate-shaped pieces are positioned in the test plate in the positioning through groove in the thickness direction of the test plate; a V-shaped positioning groove is formed by the V-shaped piece, and the side wall of the V-shaped positioning groove is matched and attached to the outer pipe wall of the pipe arranged in the V-shaped positioning groove; the first clamping piece can clamp the test plate in the thickness direction of the test plate; the second clamping piece can clamp the pipe in the axis direction of the pipe. According to the tool, all the components are integrated, so that the tool can be used as a tool piece integrating the functions of test piece polishing, pre-assembling and positioning tack welding, the use requirement is met, the size is proper, the construction cost is reduced, and moving and using are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure construction, and in particular to a test piece grinding, assembling and positioning tool and a working method. Background Art

[0002] During the welder training and examination process, different tools and equipment are required for the grinding, pre-assembly and positioning spot welding of test pieces (including test plates and pipes). Specifically, the test pieces are ground on a bench vise operating table, the pipes are assembled and the positioning spot welding is performed on channel steel, and the assembly spot welding of test plates is performed on a flat iron plate.

[0003] In summary, the welding station needs to be equipped with a lot of equipment and tooling, which is not conducive to cost saving and is not convenient for movement and use. Summary of the invention

[0004] The purpose of the present invention is to provide a test piece grinding, assembly and positioning tool and a working method. As a tool that integrates the functions of test piece grinding, pre-assembly and positioning point welding, it meets the use requirements and has a suitable size, reduces the construction cost, and is convenient to move and use.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A test piece grinding, assembling and positioning tool is used to process a test piece, wherein the test piece is a test plate or a tube, and the test piece grinding, assembling and positioning tool comprises a V-shaped piece, two plate-like pieces, two first clamping pieces, two second clamping pieces and a base; the V-shaped piece forms a V-shaped positioning groove, and the side wall of the V-shaped positioning groove matches and fits with the outer tube wall of the tube placed in the V-shaped positioning groove; the first clamping piece can clamp the test plate along the thickness direction of the test plate; the second clamping piece can clamp the tube along the axial direction of the tube; the plate-like piece, the V-shaped piece, the first clamping piece and the second clamping piece are arranged on the base, and the base and the two plate-like pieces form a positioning groove, and the two plate-like pieces position the test plate arranged in the positioning groove along the thickness direction of the test plate.

[0007] As an optional technical solution for the specimen grinding, assembly and positioning tooling, the first clamping member includes a first clamping body and two first clamping jaws connected to the first clamping body, and the first clamping body is used to drive the two first clamping jaws to move closer to or away from each other.

[0008] As an optional technical solution for the specimen grinding, assembly and positioning tooling, the first clamping body is provided with two output ends and is fixed to the base, the first clamping jaw is fixed to the output end of the first clamping body, and the two first clamping jaws have clamping planes arranged opposite to each other, and the clamping planes are used to fit the side walls of the test plate.

[0009] As an optional technical solution for the specimen grinding, assembly and positioning tooling, the second clamping member includes a second clamping body and two second clamping jaws connected to the second clamping body, and the second clamping body is used to drive the two second clamping jaws to move closer to or away from each other.

[0010] As an optional technical solution for the specimen grinding, assembly and positioning tooling, the second clamping body is provided with two output ends and is fixed to the base, the second clamping jaws are fixedly connected to the output ends of the second clamping body, and the two second clamping jaws have working surfaces arranged opposite to each other, the working surfaces are provided with clamping grooves, and the groove walls of the clamping grooves are used to fit the outer tube wall of the tube.

[0011] As an optional technical solution for the specimen grinding, assembly and positioning tooling, the plate-like member is welded to the base; and / or the V-shaped member is welded to the base.

[0012] As an optional technical solution for the specimen grinding, assembly and positioning tooling, the plate-like member is a flat iron.

[0013] As an optional technical solution for the specimen grinding, assembly and positioning tooling, the V-shaped piece is an angle steel.

[0014] As an optional technical solution for the specimen grinding, assembling and positioning tooling, the base is provided with an avoidance groove, the avoidance groove is arranged between the two first clamping members, and the avoidance groove is arranged between the two second clamping members.

[0015] The working method of the test piece grinding, assembling and positioning tool is applied to the above-mentioned test piece grinding, assembling and positioning tool, and is used to process two test pieces. The working method of the test piece grinding, assembling and positioning tool comprises the following steps:

[0016] S1: Determine whether the test piece is a test plate, if yes, proceed to S2, if no, proceed to S6;

[0017] S2: inserting the two test plates into the positioning slots one after another, grinding a groove surface at one end of the test plate away from the positioning slot, and taking out the test plate after grinding is completed;

[0018] S3: inserting the two test plates into the positioning grooves at the same time, and making the two groove surfaces contact each other;

[0019] S4: Determine whether the two groove surfaces are accurately fitted, if so, proceed to S5, if not, insert the test plate into the positioning groove, continue to grind the groove surface, then take out the test plate and return to S3;

[0020] S5: using the two first clamping members to respectively clamp the two test plates whose groove surfaces are in contact with each other, and welding the two groove surfaces to obtain a processed product;

[0021] S6: placing the two pipes in the V-shaped positioning grooves one after another, grinding a groove at the end of the pipe, and taking out the pipe after the grinding is completed;

[0022] S7: placing the two pipes in the V-shaped positioning groove at the same time, and making the two grooves contact each other;

[0023] S8: Determine whether the two grooves are accurately fitted, if so, proceed to S9, if not, place the pipe in the V-shaped positioning groove, continue to grind the groove, then take out the pipe and return to S7;

[0024] S9: using the two second clamping members to respectively clamp the two pipes whose grooves are fitted together, and welding the two grooves to connect them to obtain a processed product.

[0025] Beneficial effects of the present invention:

[0026] The specimen grinding, assembly and positioning tooling utilizes two plate-like parts to meet the positioning requirements of the test plate during the grinding and pre-assembly process, and utilizes two first clamping parts to meet the positioning requirements of the test plate during the positioning point welding process; utilizes a V-shaped part to meet the positioning requirements of the pipe during the grinding and pre-assembly process, and utilizes two second clamping parts to meet the positioning requirements of the pipe during the positioning point welding process. The design of the plate-like part and the V-shaped part enables the specimen grinding, assembly and positioning tooling to adapt to the test plate and the pipe at the same time, thereby improving the versatility of the specimen grinding, assembly and positioning tooling. Through the integrated optimization design of each component, the specimen grinding, assembly and positioning tooling can be used as a tooling part that integrates the functions of specimen grinding, pre-assembly and positioning point welding. The use of the specimen grinding, assembly and positioning tooling can ensure the accurate positioning of the specimen during the processing process, reduce the error caused by human operation, help improve the quality of subsequent welding, reduce the difficulty of operation, improve work safety, and improve the accuracy and consistency of specimen processing. The specimen grinding, assembly and positioning tooling meets the use requirements and is of appropriate size, making the specimen grinding and pre-assembly process more convenient, reducing the time for repeated positioning and adjustment, thereby improving work efficiency, reducing construction costs, facilitating the movement and application of specimens, and having wide applicability.

[0027] The working method of the specimen grinding, assembling and positioning tooling can complete the grinding, pre-assembly and positioning point welding operations of the specimen. By judging the specimen type, positioning, grinding, pre-assembly and welding steps, the specimen can be efficiently and accurately processed. The above process significantly improves the specimen processing accuracy and work efficiency, reduces the difficulty of operation and construction safety hazards, ensures the accuracy and consistency of specimen processing, improves the quality of finished products and work efficiency, and has important application value for specimen processing and processing procedures. At the same time, through multiple grinding and pre-assembly judgments, the accurate fit of the contact parts can be ensured, which helps to improve the quality of subsequent welding operations. At the same time, the working method of the above-mentioned specimen grinding, assembling and positioning tooling can standardize the operating process, reduce unnecessary operating links, improve the degree of automation of specimen processing, and reduce production costs. Moreover, the working method of the specimen grinding, assembling and positioning tooling has greater flexibility and can be applied to the processing operations of specimens of different specifications and types. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a test piece grinding, assembling and positioning tool provided in an embodiment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a test piece grinding, assembling and positioning tool and a test piece at a grinding station provided by an embodiment of the present invention;

[0030] Figure 3 It is a structural schematic diagram of a test piece grinding, assembling and positioning tool and a test piece at a pre-assembly station provided by an embodiment of the present invention;

[0031] Figure 4 It is a flow chart of the working method of the test piece grinding, assembling and positioning tooling provided in an embodiment of the present invention.

[0032] In the figure:

[0033] 1. Base; 11. Avoidance groove; 2. Plate-shaped member; 21. Positioning through groove; 3. V-shaped member; 31. V-shaped positioning groove; 4. First clamping member; 41. First clamping body; 42. First clamping claw; 5. Second clamping member; 51. Second clamping body; 52. Second clamping claw;

[0034] 8. Test plate; 9. Pipe. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying 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, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] like Figures 1 to 3 As shown, this embodiment provides a specimen grinding, assembling and positioning tool for processing a specimen, wherein the specimen is a test plate 8 or a tube 9, and the specimen grinding, assembling and positioning tool comprises a V-shaped member 3, two plate-like members 2, two first clamping members 4, two second clamping members 5 and a base 1; the V-shaped member 3 forms a V-shaped positioning groove 31, and the side wall of the V-shaped positioning groove 31 matches and fits with the outer tube wall of the tube 9 placed in the V-shaped positioning groove 31; the first clamping member 4 can clamp the test plate 8 along the thickness direction of the test plate 8; the second clamping member 5 can clamp the tube 9 along the axial direction of the tube 9; the plate-like member 2, the V-shaped member 3, the first clamping member 4 and the second clamping member 5 are arranged on the base 1, and the base 1 and the two plate-like members 2 form a positioning groove 21, and the two plate-like members 2 position the test plate 8 arranged in the positioning groove 21 along the thickness direction of the test plate 8.

[0040] The test piece grinding, assembling and positioning tooling utilizes two plate-like parts 2 to meet the positioning requirements of the test plate 8 during the grinding and pre-assembly process, and utilizes two first clamping parts 4 to meet the positioning requirements of the test plate 8 during the positioning point welding process; utilizes a V-shaped part 3 to meet the positioning requirements of the tube 9 during the grinding and pre-assembly process, and utilizes two second clamping parts 5 to meet the positioning requirements of the tube 9 during the positioning point welding process. The design of the plate-like parts 2 and the V-shaped parts 3 enables the test piece grinding, assembling and positioning tooling to adapt to the test plate 8 and the tube 9 at the same time, thereby improving the versatility of the test piece grinding, assembling and positioning tooling. Through the integrated optimization design of each component, the test piece grinding, assembling and positioning tooling can be used as a tooling part that integrates the functions of test piece grinding, pre-assembly and positioning point welding. The use of the test piece grinding, assembling and positioning tooling can ensure the accurate positioning of the test piece during the processing process, reduce the error caused by human operation, help improve the quality of subsequent welding, reduce the difficulty of operation, improve work safety, and improve the accuracy and consistency of test piece processing. The specimen grinding, assembly and positioning tooling meets the use requirements and is of appropriate size, making the specimen grinding and pre-assembly process more convenient, reducing the time for repeated positioning and adjustment, thereby improving work efficiency, reducing construction costs, facilitating the movement and application of specimens, and having wide applicability.

[0041] In welding skills training and examinations, the application of the above-mentioned test piece grinding, assembly and positioning tooling can complete the grinding, pre-assembly and positioning point welding operations of the test piece without the aid of a bench vise and positioning equipment. The above improvements simplify the operating steps, help to formulate welding process procedures and operating technical requirements, and improve the efficiency of welding training and examinations.

[0042] In this embodiment, the first clamping member 4 includes a first clamping body 41 and two first clamping jaws 42 connected to the first clamping body 41, and the first clamping body 41 is used to drive the two first clamping jaws 42 to move closer to or away from each other; the second clamping member 5 includes a second clamping body 51 and two second clamping jaws 52 connected to the second clamping body 51, and the second clamping body 51 is used to drive the two second clamping jaws 52 to move closer to or away from each other.

[0043] By setting the first clamping body 41 and the second clamping body 51, the two first clamping jaws 42 and the two second clamping jaws 52 can be moved closer or farther from each other, which is convenient for adjusting the clamping force and adapting to test pieces of different sizes. With the design of the first clamping member 4 and the second clamping member 5, selective clamping can be performed along the thickness direction of the test plate 8 and the axial direction of the pipe 9, respectively, thereby ensuring the stability and accuracy of the test piece during the grinding and pre-assembly process, and avoiding the situation where the test piece is accidentally displaced or damaged.

[0044] Furthermore, the first clamping body 41 is provided with two output ends and is fixedly arranged on the base 1, the first clamping jaw 42 is fixedly connected to the output end of the first clamping body 41, and the two first clamping jaws 42 have clamping planes arranged opposite to each other, and the clamping planes are used to fit the side walls of the test plate 8; the second clamping body 51 is provided with two output ends and is fixedly arranged on the base 1, the second clamping jaw 52 is fixedly connected to the output end of the second clamping body 51, and the two second clamping jaws 52 have working surfaces arranged opposite to each other, and the working surfaces are provided with clamping through grooves, and the groove walls of the clamping through grooves are used to fit the outer tube wall of the tube 9.

[0045] The design of using the output end on the clamping body to drive the clamping claw to move can realize the synchronous driving of the two clamping parts. The above structure is simple to operate and helps to improve work efficiency. Moreover, the clamping plane and the working surface arranged opposite to each other can fit the outer wall of the corresponding test piece to ensure the firmness and stability of the clamping.

[0046] In one implementation of this embodiment, the plate-shaped member 2 is welded to the base 1 ; and the V-shaped member 3 is welded to the base 1 .

[0047] The plate-like member 2 and the V-shaped member 3 are fixed to the base 1 by welding, which helps to enhance the structural stability and load-bearing capacity of the test piece grinding, assembling and positioning tooling, and improves the practicability of the test piece grinding, assembling and positioning tooling.

[0048] In another implementation of this embodiment, only the plate-shaped member 2 is welded to the base 1. In another implementation of this embodiment, only the V-shaped member 3 is welded to the base 1. The specific connection method between each component and the base 1 is determined by the staff in this field according to the actual engineering practice, and the determination method is common knowledge in this field and will not be elaborated here.

[0049] In this embodiment, the plate-shaped member 2 is a flat iron, and the V-shaped member 3 is an angle steel.

[0050] The plate-like member 2 is made of flat iron, which has excellent strength and rigidity and can withstand the pressure of the test plate 8 during the grinding and pre-assembly process. The V-shaped member 3 is made of angle steel, which can adapt to the shape of the tube 9 and provide stable support. Both have high strength and wear resistance and can meet the needs of various specimen grinding and pre-assembly.

[0051] In this embodiment, the base 1 is provided with an escape groove 11 . The escape groove 11 is provided between the two first clamping members 4 , and the escape groove 11 is provided between the two second clamping members 5 .

[0052] The avoidance groove 11 opened on the base 1 can provide sufficient space for the positioning point fixing welding operation of the test plate 8 and the pipe 9, which facilitates the efficient and accurate completion of the welding operation and avoids the generation of welding dead angles, thereby ensuring the flexibility of the welding operation and helping to improve the efficiency of the welding operation.

[0053] like Figures 1 to 4 As shown, this embodiment also provides a working method of the specimen grinding, assembling and positioning tool, which is applied to the above-mentioned specimen grinding, assembling and positioning tool, and is used to process two specimens. The working method of the specimen grinding, assembling and positioning tool includes the following steps:

[0054] Step 1: Determine whether the test piece is the test plate 8, if so, proceed to step 2, if not, proceed to step 6.

[0055] Step 2: insert two test plates 8 into the positioning groove 21 one after another, grind a groove surface at one end of the test plate 8 away from the positioning groove 21, and take out the test plate 8 after grinding is completed.

[0056] Step 3: Insert the two test plates 8 into the positioning grooves 21 at the same time, and make the two groove surfaces contact each other.

[0057] Step 4: Determine whether the two groove surfaces fit accurately. If so, proceed to step 5. If not, insert the test plate 8 into the positioning groove 21, continue to grind the groove surface, then take out the test plate 8 and return to step 3.

[0058] Step 5: Use two first clamping members 4 to respectively clamp the two test plates 8 with groove surfaces in contact with each other, and weld the two groove surfaces to obtain a processed product.

[0059] Step 6: Place two pipes 9 in the V-shaped positioning groove 31 one after another, grind a groove at the end of the pipe 9, and take out the pipe 9 after grinding is completed.

[0060] Step 7: Place two pipes 9 in the V-shaped positioning groove 31 at the same time, and make the two grooves contact each other.

[0061] Step 8: Determine whether the two grooves fit accurately. If so, proceed to step 9. If not, place the pipe 9 in the V-shaped positioning groove 31, continue to grind the groove, then take out the pipe 9 and return to step 7.

[0062] Step nine: Use two second clamping members 5 to respectively clamp the two pipes 9 with grooves fitting together, and weld the two grooves together to obtain a finished product.

[0063] In step two, the test plate 8 is at the grinding station, and in step three, the test plate 8 is at the pre-assembly station; in step six, the pipe 9 is at the grinding station, and in step seven, the pipe 9 is at the pre-assembly station.

[0064] The working method of the specimen grinding, assembling and positioning tooling can complete the grinding, pre-assembly and positioning point welding operations of the specimen. By judging the specimen type, positioning, grinding, pre-assembly and welding steps, the specimen can be efficiently and accurately processed. The above process significantly improves the specimen processing accuracy and work efficiency, reduces the difficulty of operation and construction safety hazards, ensures the accuracy and consistency of specimen processing, improves the quality of finished products and work efficiency, and has important application value for specimen processing and processing procedures. At the same time, through multiple grinding and pre-assembly judgments, the accurate fit of the contact parts can be ensured, which helps to improve the quality of subsequent welding operations. At the same time, the working method of the above-mentioned specimen grinding, assembling and positioning tooling can standardize the operating process, reduce unnecessary operating links, improve the degree of automation of specimen processing, and reduce production costs. Moreover, the working method of the specimen grinding, assembling and positioning tooling has greater flexibility and can be applied to the processing operations of specimens of different specifications and types.

[0065] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A test piece grinding, assembling and positioning tool, used for processing a test piece, wherein the test piece is a test plate (8) or a pipe (9), and is characterized in that: The test piece grinding, assembling and positioning tooling comprises: two plate-like members (2); A V-shaped member (3), the V-shaped member (3) forming a V-shaped positioning groove (31), the side wall of the V-shaped positioning groove (31) matching and fitting with the outer wall of the tube (9) placed in the V-shaped positioning groove (31); two first clamping members (4), wherein the first clamping members (4) are capable of clamping the test plate (8) along the thickness direction of the test plate (8); two second clamping members (5), the second clamping members (5) being capable of clamping the tube (9) along the axial direction of the tube (9); A base (1), the plate-like member (2), the V-shaped member (3), the first clamping member (4) and the second clamping member (5) are arranged on the base (1), the base (1) and the two plate-like members (2) enclose a positioning groove (21), and the two plate-like members (2) position the test plate (8) in the positioning groove (21) along the thickness direction of the test plate (8).

2. The test piece grinding, assembling and positioning tool according to claim 1, characterized in that: The first clamping member (4) comprises a first clamping body (41) and two first clamping jaws (42) connected to the first clamping body (41), and the first clamping body (41) is used to drive the two first clamping jaws (42) to move closer to or farther from each other.

3. The test piece grinding, assembling and positioning tool according to claim 2, characterized in that: The first clamping body (41) is provided with two output ends and is fixedly mounted on the base (1); the first clamping jaws (42) are fixedly connected to the output ends of the first clamping body (41); the two first clamping jaws (42) have clamping planes arranged opposite to each other, and the clamping planes are used to fit the side walls of the test plate (8).

4. The test piece grinding, assembling and positioning tool according to claim 1, characterized in that: The second clamping member (5) comprises a second clamping body (51) and two second clamping jaws (52) connected to the second clamping body (51), and the second clamping body (51) is used to drive the two second clamping jaws (52) to move closer to or farther from each other.

5. The test piece grinding, assembling and positioning tool according to claim 4, characterized in that: The second clamping body (51) is provided with two output ends and is fixedly mounted on the base (1); the second clamping jaws (52) are fixedly connected to the output ends of the second clamping body (51); the two second clamping jaws (52) have working surfaces arranged opposite to each other; the working surfaces are provided with clamping through grooves; the groove walls of the clamping through grooves are used to fit the outer wall of the tube (9).

6. The test piece grinding, assembling and positioning tool according to claim 1, characterized in that: The plate-like member (2) is welded to the base (1); and / or, The V-shaped member (3) is welded to the base (1).

7. The test piece grinding, assembling and positioning tool according to claim 1, characterized in that: The plate-shaped member (2) is a flat iron.

8. The test piece grinding, assembling and positioning tool according to claim 1, characterized in that: The V-shaped member (3) is an angle steel.

9. The test piece grinding, assembling and positioning tool according to any one of claims 1 to 8, characterized in that: The base (1) is provided with an avoidance groove (11), wherein the avoidance groove (11) is provided between the two first clamping members (4), and the avoidance groove (11) is provided between the two second clamping members (5).

10. A working method of a test piece grinding, assembling and positioning tool, applied to the test piece grinding, assembling and positioning tool as claimed in any one of claims 1 to 9, characterized in that: The working method of the test piece grinding and assembling positioning tool for processing the two test pieces comprises the following steps: S1: Determine whether the test piece is a test plate (8), if yes, proceed to S2, if no, proceed to S6; S2: inserting the two test plates (8) into the positioning grooves (21) one after another, grinding a groove surface at one end of the test plate (8) away from the positioning groove (21), and taking out the test plate (8) after grinding is completed; S3: inserting the two test plates (8) into the positioning grooves (21) at the same time, and making the two groove surfaces contact each other; S4: Determine whether the two groove surfaces are accurately fitted, if so, proceed to S5, if not, insert the test plate (8) into the positioning groove (21), continue to grind the groove surface, then take out the test plate (8) and return to S3; S5: using the two first clamping members (4) to respectively clamp the two test plates (8) whose groove surfaces are in contact with each other, and welding the two groove surfaces to obtain a processed product; S6: placing the two pipes (9) in the V-shaped positioning groove (31) one after another, grinding a groove at the end of the pipe (9), and after the grinding is completed, taking out the pipe (9); S7: placing the two pipes (9) in the V-shaped positioning groove (31) at the same time, and making the two grooves contact each other; S8: Determine whether the two grooves are accurately fitted, if so, proceed to S9, if not, place the pipe (9) in the V-shaped positioning groove (31), continue to grind the groove, then take out the pipe (9) and return to S7; S9: using the two second clamping members (5) to respectively clamp the two pipes (9) whose grooves are in contact with each other, and welding the two grooves together to obtain a processed product.

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