Frame type multi-wire cutting assembly and multi-wire cutting machine

Abstract

The utility model relates to the field of cutting equipment, in particular to a frame type multi-wire cutting assembly and a multi-wire cutting machine. Comprising a main frame, a roller and a rotary driving assembly, the main frame comprises a rear back plate, a front plate and a connecting plate which is located between the rear back plate and the front plate and fixedly connects the rear back plate and the front plate together, the front plate is in an inverted U shape, and the roller is rotationally arranged between the rear back plate and the front plate; the four rollers are arranged at the four corners of the front plate respectively, the rollers are exposed out of the connecting plate, and the four rotary driving assemblies are connected with the four rollers respectively and drive the rollers to rotate. According to the invention, winding of the cutting wire is facilitated, so that the winding efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of cutting equipment, in particular to a frame-type multi-wire cutting assembly and a multi-wire cutting machine. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and do not constitute prior art. Figure 1 In the related art, a multi-wire cutting machine includes four rotating rollers 2, and a cutting wire 9 is spirally wound on the four rollers to form a cutting mesh surface, which is used to cut the material. In the related art, the frame used to install the rollers is usually closed, that is, the rollers are wrapped in the frame. Since the cutting wire needs to be repeatedly wound on the rollers, the closed frame structure will hinder the winding of the wire, thereby reducing the winding efficiency. Summary of the invention

[0003] In view of this, the present application provides a frame-type multi-wire cutting assembly and a multi-wire cutting machine, which facilitate the winding of the cutting wires, thereby improving the winding efficiency.

[0004] In order to achieve the above-mentioned purpose, the present application is implemented through the following technical scheme: a frame-type multi-wire cutting assembly, characterized in that it includes a main frame, rollers and a rotation drive assembly, the main frame includes a back plate, a front plate, and a connecting plate located between the back plate and the front plate and fixedly connecting the back plate and the front plate together, the front plate is an inverted U-shape, the rollers are rotatably arranged between the back plate and the front plate, the number of rollers is four and they are arranged at the four corners of the front plate, and the rollers expose the connecting plate, and the rotation drive assemblies are four, which are respectively connected to four rollers and drive each roller to rotate.

[0005] The above-mentioned application is a frame-type multi-wire cutting assembly, in which rollers are installed at the four corners of the front plate, and the rollers are exposed from the connecting plate to form an open frame structure, which makes it more convenient to wind the cutting wire without obstruction and can increase the winding efficiency.

[0006] In some embodiments, the rotary drive assembly includes a front-end bearing assembly, a rear-end bearing assembly, a rear-end countershaft, a screw shaft, a front-end tapered sleeve, a front-end tapered rod, and a driving motor, wherein the rear-end bearing assembly is fixedly mounted on the rear back plate, the rear-end countershaft is rotatably mounted in the rear-end bearing assembly, the front-end bearing assembly is fixedly mounted on the front plate, the front-end tapered sleeve is rotatably mounted in the front-end bearing assembly, the axial ends of the roller are respectively coaxially fixed with a first tapered sleeve and a second tapered sleeve, and the first tapered sleeve and the second tapered sleeve are respectively provided with coaxial tapered holes in the axial end ports that are opposite to each other, and the hole walls of the two tapered holes extend from away from their respective corresponding ports to close to their respective corresponding ports. The diameters gradually increase; a first tapered portion is fixedly arranged at one end of the tail end secondary shaft, and the outer wall of the first tapered portion is taperedly matched with the inner wall of the tapered hole of the first tapered sleeve; the front end tapered rod is coaxially fixedly installed on the outer peripheral wall of one axial end of the screw shaft, and the screw shaft is movably inserted into the internal through holes of the second tapered sleeve and the first tapered sleeve, and the other axial end of the screw shaft is detachably fixedly connected with the first tapered portion, and the outer peripheral walls of the axial ends of the front end tapered rod have a second tapered portion and a third tapered portion which are coaxial and have the same taper direction, the second tapered portion is taperedly matched with the inner wall of the tapered hole of the second tapered sleeve, and the third tapered portion is taperedly matched with the inner wall of the tapered hole provided in the front end tapered sleeve body, and the driving motor is connected to the tail end secondary shaft and drives it to rotate.

[0007] The roller is a component that needs to be replaced. The above-mentioned rotary drive assembly can realize the rapid disassembly and assembly of the roller while ensuring coaxial alignment.

[0008] In some embodiments, the detachable fixed connection between the screw shaft and the first tapered portion is a threaded connection, the front end tapered rod and the screw shaft are also fixed by a threaded connection, and the rotary drive assembly also includes a locking nut threadedly connected to the axial outer end of the screw shaft and locked on the outer end of the front end tapered sleeve.

[0009] The present application also provides a multi-wire cutting machine, having the above-mentioned frame-type multi-wire cutting component, characterized in that it also includes two columns arranged at intervals on the left and right, and the frame-type multi-wire cutting component is connected to the two columns in a lifting and movable manner, and each column is provided with a lifting drive component for driving the frame-type multi-wire cutting component to lift and lower.

[0010] In some embodiments, each lifting drive component includes a lifting slide plate that is movably arranged relative to the column and is used to install the main frame, the lifting slide plate is provided with two slide grooves that are arranged up and down and extend respectively in the left and right directions, and the two slide grooves are respectively slidably connected with a first positioning member and a second positioning member, the first positioning member is fixedly provided with a positioning shaft extending in a vertical direction of the slide groove and a lifting direction of the lifting slide plate, the second positioning member is fixedly provided with a positioning block, the back plate is fastened to the positioning block by a threaded member, the back plate is also provided with a positioning recess that matches the positioning shaft, the positioning recess matches the positioning shaft in a concave-convex manner, the first positioning member and the second positioning member are both provided with elongated holes, and the first positioning member and the second positioning member are fixedly connected to the lifting slide plate by a threaded member passing through the elongated holes.

[0011] A first slidable positioning member and a second slidable positioning member are arranged on the lifting slide plate, which can facilitate the installation and debugging of the main frame.

[0012] In some embodiments, the multi-wire cutting machine further comprises a workbench assembly located below the main frame and used for loading the cut materials, and a moving driving component used for driving the workbench assembly to move in a front-rear direction, wherein the workbench assembly comprises a workbench surface, a slide plate under the workbench, and a slide plate on the workbench;

[0013] The work table is movably arranged along the front-rear direction, the slide plate under the work table is movably arranged above the work table and is connected to the work table with a deflection connection through a horizontally extending intermediate shaft, and a plurality of support members are also installed on the work table, the height of the support members is adjustable and supported on the bottom of the slide plate under the work table, so as to level the slide plate under the work table; the slide plate on the work table is connected above the slide plate under the work table in a manner of rotating around a vertical axis, and a locking member for locking the rotational position of the slide plate on the work table relative to the slide plate under the work table is also provided between the slide plate on the work table and the slide plate on the work table.

[0014] The slide plate under the workbench is supported on the supporting parts, and the horizontal plane can be adjusted. Moreover, the slide plate on the workbench is rotatably arranged to adjust the angle of cutting, so that the flexibility and adaptability are better.

[0015] In some embodiments, the slide plate under the workbench is deflectively connected relative to the work surface as follows: two first bearing components are fixedly installed on the work surface, the horizontally extending intermediate shaft is rotatably connected between the two first bearing components, and two second bearing components are coaxially provided at both axial ends of the intermediate shaft, and the second bearing components are fixedly arranged on the bottom of the slide plate under the workbench.

[0016] In some embodiments, the support member includes a positioning screw that is vertically arranged and threadedly connected to the work surface, and a limiting nut that is threadedly connected to the positioning screw and pressed above the work surface, and the top of the positioning screw has a rotatable ball.

[0017] In some embodiments, the locking component includes a first screw rod vertically mounted on a sliding plate on the workbench, an arc-shaped hole is provided on the sliding plate on the workbench, the arc-shaped hole is coaxially arranged with the vertical axis of the sliding plate on the workbench, the upper part of the first screw rod passes through the arc-shaped hole and can slide therein, the upper part of the first screw rod is also threadedly connected to a first nut, and the first nut is pressed above the sliding plate on the workbench.

[0018] It can be seen from the above technical solution that the present application has at least the following advantages and positive effects:

[0019] 1. In the present application, rollers are installed at the four corners of the front plate, and the rollers expose the connecting plate to form an open frame structure, which makes it more convenient to wind the cutting wire without any obstruction, thus increasing the winding efficiency.

[0020] 2. The rotary drive assembly in the present application can realize the rapid disassembly and assembly of the roller while ensuring coaxial alignment.

[0021] 3. The present application provides a slidable first positioning member and a second positioning member on the lifting slide to facilitate installation and debugging of the main frame.

[0022] 4. In the present application, the slide plate under the workbench is supported on the supporting member, and the horizontal plane can be adjusted. Moreover, the slide plate on the workbench is rotatably arranged to adjust the angle of cutting, so that the flexibility and adaptability are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a multi-wire cutting machine in the related art;

[0024] Figure 2 This is a schematic diagram of the structure of an embodiment of the present application;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the mid-frame multi-wire cutting assembly;

[0026] Figure 4 A cross-sectional view of a rotary drive assembly in an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of disassembling the rotary drive assembly in an embodiment of the present application;

[0028] Figure 6 This is a schematic diagram of the structure of the column part in the embodiment of the present application;

[0029] Figure 7 for Figure 6 The enlarged schematic diagram of point A in the middle;

[0030] Figure 8 This is a schematic diagram of the structure of the main frame from the back perspective in an embodiment of the present application;

[0031] Fig. 9 This is a schematic diagram of the structure of the workbench assembly in the embodiment of the present application;

[0032] Fig.10 for Fig. 9 Explosion diagram of

[0033] Fig.11 for Fig.10 A magnified schematic diagram of point B in the middle.

[0034] Explanation of reference numerals: 1. Main frame; 11. Back plate; 111. Positioning recess; 12. Front plate; 13. Connecting plate; 2. Roller; 21. First taper sleeve; 22. Second taper sleeve; 3. Rotary drive assembly; 31. Front bearing assembly; 32. Tail bearing assembly; 33. Tail secondary shaft; 331. First taper; 34. Screw shaft; 35. Front taper sleeve; 36. Front taper rod; 361. Second taper; 362. Third taper; 37. Drive motor; 38. Locking nut; 4. Column; 5. Lifting drive Parts; 51, lifting slide; 511, slide groove; 52, first positioning member; 521, positioning shaft; 522, long hole; 53, second positioning member; 531, positioning block; 6, workbench assembly; 61, work table; 62, slide plate under the workbench; 63, slide plate on the workbench; 631, arc hole; 64, positioning screw; 641, limit nut; 642, ball; 66, first bearing component; 67, intermediate shaft; 68, second bearing component; 69, vertical shaft; 7, moving drive component; 8, retractable wire system. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The terms used in the implementation method of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0036] See also Figures 2 to 11 The embodiment of the present application provides a multi-wire cutting machine, including two columns 4 arranged at intervals on the left and right, and a frame-type multi-wire cutting component connected to the two columns 4 in a lifting and movable manner, and each column 4 is provided with a lifting drive component 5 for driving the lifting and lowering movement of the frame-type multi-wire cutting component.

[0037] The frame-type multi-wire cutting assembly includes a main frame 1, rollers 2 and a rotary drive assembly 3. The main frame 1 includes a back plate 11, a front plate 12, and a connecting plate 13 located between the back plate 11 and the front plate 12 and fixedly connecting the back plate 11 and the front plate 12 together. The front plate 12 is in an inverted U shape. The rollers 2 are rotatably arranged between the back plate 11 and the front plate 12. There are four rollers 2 and they are arranged at the four corners of the front plate 12. The rollers 2 expose the connecting plate 13. The rotary drive assembly 3 consists of four rollers 2 respectively connected to the four rollers 2 and drive each roller 2 to rotate. Two retractable wire systems 8 are also arranged on the back plate 11. One of the retractable wire systems 8 is used to release the cutting wire. The released cutting wire is repeatedly spirally wound on the four rollers 2 and connected to the other retractable wire system 8. The retractable wire system 8 is used to collect damaged cutting wires.

[0038] Since the rollers 2 are installed at the four corners of the front plate 12 and the connecting plates 13 are exposed by the rollers 2, an open frame structure is formed, which makes it more convenient to wind the cutting wire without any obstruction, thereby increasing the winding efficiency.

[0039] In some embodiments, see Figure 3-Figure 5 The rotary drive assembly 3 includes a front end bearing assembly 31, a rear end bearing assembly 32, a rear end countershaft 33, a screw shaft 34, a front end taper sleeve 35, a front end taper rod 36, and a drive motor 37. The rear end bearing assembly 32 is fixedly mounted on the back plate 11, the rear end countershaft 33 is rotatably mounted in the rear end bearing assembly 32, the front end bearing assembly 31 is fixedly mounted on the front plate 12, the front end taper sleeve 35 is rotatably mounted in the front end bearing assembly 31, and the two ends of the roller 2 are respectively fixedly provided with a first taper sleeve 21 and a second taper sleeve 22 with opposite taper directions. A first tapered portion is fixedly provided at one end of the secondary shaft 33, and the outer wall of the first tapered portion is taperedly matched with the inner wall of the first tapered sleeve 21; the front end tapered rod 36 is fixedly installed on the screw shaft 34, and one end of the screw shaft 34 can be movably passed through the interior of the second tapered sleeve 22 and the first tapered sleeve 21 and is detachably fixedly connected with the first tapered portion, and the front end tapered rod 36 has a second tapered portion and a third tapered portion with the same taper direction, the second tapered portion is taperedly matched with the second tapered sleeve 22, and the third tapered portion is taperedly matched with the front end tapered sleeve 35, and the driving motor 37 is connected to the rear end secondary shaft 33 and drives it to rotate.

[0040] The screw shaft 34 and the first tapered portion are detachably fixedly connected in a manner that the first tapered portion has an internal threaded hole, the screw shaft 34 is threadedly connected to the internal threaded hole, the front end tapered rod 36 is also fixed to the screw shaft 34 in a threaded manner, and the rotary drive assembly 3 further includes a locking nut 38 threadedly connected to the other end of the screw shaft 34 and locked on the front end tapered sleeve 35. The addition of the locking nut 38 can prevent the screw shaft 34 from rotating relative to the first tapered portion.

[0041] The roller 2 is a component to be replaced. The above-mentioned rotary drive assembly 3 can realize the rapid disassembly and assembly of the roller 2 while ensuring coaxial alignment.

[0042] See also Figure 5 When it is necessary to replace the roller 2, first rotate the locking nut 38 to unlock it, and rotate the screw shaft 34. To facilitate the rotation of the screw, its end can be set to a square head. During the rotation of the screw shaft 34, the screw shaft 34 is screwed out of the internal threaded hole of the tail end auxiliary shaft 33, and the screw shaft 34 and the front end tapered rod 36 are pulled out together, so that the roller 2 can be freely pulled out and disassembled.

[0043] When installing the roller 2, the screw shaft 34 and the front end taper rod 36 are inserted into the second taper sleeve 22 and the first taper sleeve 21 of the roller 2, and are screwed together with the internal threaded hole of the tail end secondary shaft 33. During the tightening process, the first taper sleeve 21 of the auxiliary roller 2 and the first taper portion 331 of the tail end secondary shaft 33 are self-tapered, and the second taper portion 361 and the third taper portion 362 of the front end taper rod 36 are taper-matched with the second taper sleeve 22 and the front end taper sleeve 35 respectively for automatic centering, and finally the locking nut 38 is locked.

[0044] The driving motor 37 drives the tail end secondary shaft 33 to rotate during the rotation process, and the first cone 331 of the tail end secondary shaft 33 drives the first cone sleeve 21 and the roller 2 to rotate through friction, and the above-mentioned cone matching positions are all friction transmission. The above-mentioned screw shaft 34 is inserted into the middle part of the roller 2, which can reduce the possibility of bending and deformation of the roller 2.

[0045] In some embodiments, each lifting drive component 5 includes a lifting slide 51 which is movably arranged relative to the column 4 and is used to install the main frame 1. The lifting slide 51 is provided with two slide grooves 511 extending in the left and right directions. The first positioning member 52 and the second positioning member 53 are slidably connected in the two slide grooves 511 respectively. The first positioning member 52 is fixed with a positioning shaft 521, and the second positioning member 53 is fixed with a positioning block 531. The back plate 11 is fastened to the positioning block 531 by a screw. The back plate 11 is also provided with a positioning recess 111 which matches the positioning shaft 521. The positioning recess 111 and the positioning shaft 521 are matched in a concave and convex manner. The first positioning member 52 and the second positioning member 53 are both provided with long holes 532, 522. The first positioning member 52 and the second positioning member 53 are fixedly connected to the lifting slide 51 by screws passing through the long holes.

[0046] A slidable first positioning member 52 and a second positioning member 53 are provided on the lifting slide plate 51 to facilitate installation and debugging of the main frame 1 .

[0047] In some embodiments, the multi-wire cutting machine further includes a workbench assembly 6 located below the main frame 1 and used for loading cut materials, and a moving driving component 7 for driving the workbench assembly 6 to move in a front-rear direction, wherein the workbench assembly 6 includes a workbench surface 61, a slide plate 62 under the workbench, and a slide plate 63 on the workbench;

[0048] The work table 61 is movably arranged along the front-to-back direction, and the slide plate 62 under the work table is connected to the work table 61 in a deflected manner. A plurality of support members are also installed on the work table 61. The height of the support members is adjustable and supported on the bottom of the slide plate 62 under the work table, so as to level the slide plate 62 under the work table; the slide plate 63 on the work table is connected to the slide plate 62 under the work table in a manner of rotating around a vertical axis 69, and a locking member for locking the rotational position of the slide plate 63 on the work table is also provided between the slide plate 63 on the work table and the slide plate 62 under the work table.

[0049] The slide plate 62 under the workbench is supported on the supporting member, and the horizontal plane can be adjusted. In addition, the slide plate 63 on the workbench is rotatably arranged to adjust the angle of cutting, so that the flexibility and adaptability are better.

[0050] In some embodiments, the slide plate 62 under the workbench is deflected relative to the work surface 61 as follows: two first bearing components 66 are provided on the work surface 61, and a horizontally arranged intermediate shaft 67 is rotatably connected between the two first bearing components 66. The intermediate shaft 67 is also provided with two second bearing components 68, and the second bearing components 68 are fixed to the bottom of the slide plate 62 under the workbench.

[0051] In some embodiments, the support member includes a positioning screw 64 vertically arranged and threadedly connected to the work surface 61, and a limiting nut 641 threadedly connected to the positioning thread and pressed on the work surface 61, and a rotatable ball 642 is provided on the top of the positioning screw 64.

[0052] In some embodiments, the locking component includes a first screw rod vertically mounted on a slide plate 62 under the workbench, an arc-shaped hole 631 is provided on the slide plate 63 on the workbench, the arc-shaped hole 631 is coaxially arranged with a vertical axis 69 of the slide plate 63 on the workbench, the upper portion of the first screw rod passes through the arc-shaped hole 631 and can slide therein, the upper portion of the first screw rod is also threadedly connected to a first nut, and the first nut is pressed on the slide plate 63 on the workbench.

[0053] When the angle of the slide plate 63 on the workbench needs to be adjusted, the first nut is first unscrewed, and the slide plate 63 on the workbench is pushed to rotate, and the first nut is tightened after reaching a suitable position.

[0054] In the description of the embodiments of the present application, 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, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0055] The terms "first," "second," "third," "fourth," etc., if any, are used to distinguish between similar objects and not necessarily to describe a particular sequence or order.

[0056] In the description of the embodiments of the present application, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A frame-type multi-wire cutting assembly, characterized in that: It includes a main frame, rollers and a rotation drive assembly. The main frame includes a back plate, a front plate, and a connecting plate located between the back plate and the front plate and fixedly connecting the back plate and the front plate together. The front plate is in an inverted U shape. The rollers are rotatably arranged between the back plate and the front plate. There are four rollers and they are arranged at the four corners of the front plate, and the rollers are exposed from the connecting plate. There are four rotation drive assemblies, which are respectively connected to four rollers and drive each roller to rotate.

2. A frame-type multi-wire cutting assembly according to claim 1, characterized in that: The rotary drive assembly includes a front end bearing assembly, a rear end bearing assembly, a rear end countershaft, a screw shaft, a front end tapered sleeve, a front end tapered rod, and a driving motor. The rear end bearing assembly is fixedly mounted on the back plate, the rear end countershaft is rotatably mounted in the rear end bearing assembly, the front end bearing assembly is fixedly mounted on the front plate, and the front end tapered sleeve is rotatably mounted in the front end bearing assembly. The axial ends of the roller are respectively coaxially fixed with a first tapered sleeve and a second tapered sleeve. The first tapered sleeve and the second tapered sleeve are respectively provided with coaxial tapered holes in the axial end ports that are opposite to each other, and the apertures of the two tapered holes gradually increase in diameter as the walls of the two tapered holes extend from away from their respective corresponding ports to close to their respective corresponding ports. Large; one end of the tail end secondary shaft is fixedly provided with a first tapered portion, and the outer wall of the first tapered portion is taperedly matched with the inner wall of the tapered hole of the first tapered sleeve; the front end tapered rod is coaxially fixedly installed on the outer peripheral wall of one axial end of the screw shaft, and the screw shaft is movably inserted into the internal through holes of the second tapered sleeve and the first tapered sleeve, and the other axial end of the screw shaft is detachably fixedly connected with the first tapered portion, and the outer peripheral walls of the axial ends of the front end tapered rod have a second tapered portion and a third tapered portion which are coaxial and have the same taper direction, the second tapered portion is taperedly matched with the inner wall of the tapered hole of the second tapered sleeve, and the third tapered portion is taperedly matched with the inner wall of the tapered hole provided in the front end tapered sleeve body, and the driving motor is connected to the tail end secondary shaft and drives it to rotate.

3. A frame-type multi-wire cutting assembly according to claim 2, characterized in that: The detachable fixed connection between the screw shaft and the first tapered part is a threaded connection, the fixing method between the front end tapered rod and the screw shaft is also a threaded connection, and the rotary drive assembly also includes a locking nut threadedly connected to the axial outer end of the screw shaft and locked on the outer end of the front end tapered sleeve.

4. A multi-wire cutting machine, characterized in that: The multi-wire cutting machine has a frame-type multi-wire cutting component as described in any one of claims 1 to 3 above, and the multi-wire cutting machine also includes two columns spaced apart on the left and right, the frame-type multi-wire cutting component is connected to the two columns in a lifting and movable manner, and each column is provided with a lifting drive component for driving the frame-type multi-wire cutting component to lift and lower.

5. A multi-wire cutting machine according to claim 4, characterized in that: Each lifting drive component includes a lifting slide plate which is movably arranged relative to the column and is used to install the main frame, the lifting slide plate is provided with two slide grooves which are arranged up and down and extend in the left and right directions respectively, the two slide grooves are respectively slidably connected with a first positioning member and a second positioning member, the first positioning member is fixedly provided with a positioning shaft which extends in a vertical direction of the slide groove extension and in the lifting direction of the lifting slide plate, the second positioning member is fixedly provided with a positioning block, the back plate is fastened to the positioning block by a screw member, the back plate is also provided with a positioning recess which matches the positioning shaft, the positioning recess matches the positioning shaft in a concave-convex manner, the first positioning member and the second positioning member are both provided with elongated holes, and the first positioning member and the second positioning member are both fixedly connected to the lifting slide plate by a screw member which passes through the elongated holes.

6. A multi-wire cutting machine according to claim 4, characterized in that: The multi-wire cutting machine also includes a workbench assembly located below the main frame and used for loading cut materials, and a moving driving component used for driving the workbench assembly to move in a front-rear direction, wherein the workbench assembly includes a workbench surface, a slide plate under the workbench, and a slide plate on the workbench; The work table is movably arranged along the front-rear direction, the slide plate under the work table is movably arranged above the work table and is connected to the work table with a deflection connection through a horizontally extending intermediate shaft, and a plurality of support members are also installed on the work table, the height of the support members is adjustable and supported on the bottom of the slide plate under the work table, so as to level the slide plate under the work table; the slide plate on the work table is connected above the slide plate under the work table in a manner of rotating around a vertical axis, and a locking member for locking the rotational position of the slide plate on the work table relative to the slide plate under the work table is also provided between the slide plate on the work table and the slide plate on the work table.

7. A multi-wire cutting machine according to claim 6, characterized in that: The way in which the slide plate under the workbench is deflected and connected relative to the work table surface is as follows: two first bearing components are fixedly installed on the work table surface, the horizontally extending intermediate shaft is rotatably connected between the two first bearing components, and two second bearing components are coaxially arranged at both axial ends of the intermediate shaft, and the second bearing components are fixedly arranged on the bottom of the slide plate under the workbench.

8. The multi-wire cutting machine according to claim 6, characterized in that: The support member comprises a positioning screw rod which is vertically arranged and threadedly connected to the working table, and a limiting nut which is threadedly connected to the positioning screw rod and pressed above the working table surface. The top of the positioning screw rod is provided with a rotatable ball.

9. The multi-wire cutting machine according to claim 6, characterized in that: The locking component includes a first screw rod vertically mounted on a sliding plate on the workbench. An arc-shaped hole is provided on the slide plate on the workbench. The arc-shaped hole is coaxially arranged with the vertical axis of the slide plate on the workbench. The upper part of the first screw rod passes through the arc-shaped hole and can slide therein. The upper part of the first screw rod is also threadedly connected with a first nut, and the first nut is pressed above the slide plate on the workbench.

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