Cutting device for rack machining and manufacturing

Abstract

The invention provides a cutting device for rack machining and manufacturing, and relates to the technical field of rack machining. Two first guide columns are welded to the top end face of the equipment body, a mounting arm is slidably arranged on the two first guide columns, a mounting arm is slidably arranged on the mounting arm, and a cutting machine is fixed to the bottom end face of the mounting arm; a first hydraulic cylinder is fixed to the top end face of the equipment body, and the extending end of the first hydraulic cylinder is fixed to the mounting arm. And a connecting base block slides on the two first guide columns. Through cooperative arrangement of the protection part and the cleaning part, on one hand, the protection part can achieve protection of sparks and cutting blades, and collection of residues on the equipment body can be achieved through the cleaning part; and on the other hand, due to the fact that the rear end face of the cleaning block makes contact with the rear end face of the protection plate after the two first electric cylinders contract, in the using process, when the flying-out cutting blade collides with the protection plate, under the supporting effect of the cleaning block on the protection plate, the protection capacity of the protection plate can be improved, and safety is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of rack processing, and particularly relates to a cutting device for rack processing and manufacturing. Background Art

[0002] As a special gear with teeth distributed on a strip-shaped body, a rack plays a key role in the field of mechanical transmission. It closely cooperates with a gear and can convert rotation and movement into each other. It is an important component for many mechanical devices to achieve specific motion forms. There are various types of racks, and a cylindrical rack is one of them. When processing a cylindrical rack, it is necessary to cut a cylindrical tubular blank through a cutting device.

[0003] Currently, the cutting devices used for cylindrical rack processing still have the following deficiencies during use: Although the existing devices can be provided with baffle plates for protection, they cannot cooperate with other structures on the cutting device to improve the protection effect; the existing devices need to drive the cutting machine to move for cutting through a hydraulic cylinder, and when the hydraulic cylinder is damaged, emergency cutting cannot be carried out.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structures and deficiencies, and a cutting device for rack processing and manufacturing is provided, in order to achieve a more practical purpose. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a cutting device for rack processing and manufacturing, so as to solve the problems that although the existing devices can be provided with baffle plates for protection, they cannot cooperate with other structures on the cutting device to improve the protection effect; the existing devices need to drive the cutting machine to move for cutting through a hydraulic cylinder, and when the hydraulic cylinder is damaged, emergency cutting cannot be carried out.

[0006] The present invention provides a cutting device for rack processing and manufacturing, which specifically includes: a device main body; two first guide columns are welded on the top end surface of the device main body, and an installation arm slides on the two first guide columns. A cutting machine is fixed to the bottom end surface of the installation arm; a first hydraulic cylinder is fixed to the top end surface of the device main body, and the extending end of the first hydraulic cylinder is fixed to the installation arm; a connection base block slides on the two first guide columns. The connection base block is of an H-shaped structure. A second hydraulic cylinder is fixed to the top end surface of the device main body, and the extending end of the second hydraulic cylinder is fixed to the bottom end surface of the connection base block; two clamping seats are fixed to the front end surface of the connection base block. Both clamping seats are of a concave structure. Two third hydraulic cylinders are fixed to the top end surface of the inner wall of each clamping seat. The extending ends of the two second hydraulic cylinders on the left are fixed to a clamping block, and the extending ends of the two second hydraulic cylinders on the right are fixed to another clamping block. A pipe fitting is clamped between the two clamping blocks and the two clamping seats.

[0007] Furthermore, the connecting base block, the clamping seat, the second hydraulic cylinder, the third hydraulic cylinder and the clamping block together form a clamping part; clamping grooves with a V-shaped structure are provided on both the clamping seat and the clamping block.

[0008] Furthermore, two spring rods are fixed to the bottom end surface of the mounting arm, and a discharging block is fixed to the protruding end of each spring rod. Both discharging blocks are located below the pipe fitting. The front sides of the two discharging blocks are of an inclined structure. When the two discharging blocks move upward, the inclined surfaces of the discharging blocks contact the bottom end surface of the outer wall of the pipe fitting.

[0009] Furthermore, the first guiding column, the mounting arm, the cutting machine, the first hydraulic cylinder, the spring rod and the discharging block together form a cutting part.

[0010] Furthermore, a protective part is installed on the equipment main body. The protective part is composed of a sliding arm and a protective plate. A sliding arm is fixed to each of the left end surface and the right end surface of the equipment main body. A protective plate slides on the two sliding arms, and the protective plate is located directly in front of the cutting machine.

[0011] Furthermore, the protective plate is in the shape of a T-shaped plate. The transverse part of the protective plate is aligned with the mounting arm. When the mounting arm moves upward, it contacts the transverse part of the protective plate.

[0012] Furthermore, a limiting part is installed on the equipment main body. The limiting part is composed of a second electric cylinder and a limiting block. A second electric cylinder is fixed to the top end surface of the equipment main body. A limiting block is fixed to the protruding end of the second electric cylinder, and the left end surface of the limiting block contacts the right end of the pipe fitting.

[0013] Furthermore, a cleaning part is installed on the equipment main body. The cleaning part is composed of a first electric cylinder and a cleaning block. Two first electric cylinders are fixed to the top end surface of the equipment main body. The protruding ends of the two first electric cylinders are both fixed to the cleaning block. The cleaning block is in the shape of a rectangular block, and the bottom end surface of the cleaning block contacts the top end surface of the equipment main body.

[0014] Furthermore, a cleaning hole is provided at the rear side position of the top end surface of the equipment main body. The cleaning hole is in the shape of a rectangular hole, and the cleaning hole is aligned with the cleaning block. The width of the cleaning hole is equal to the width of the cleaning block; a collection box is fixed to the bottom end surface of the equipment main body, and the collection box is located directly below the cleaning hole.

[0015] Furthermore, when the two first electric cylinders are fully retracted, the rear end surface of the cleaning block contacts the rear end surface of the protective plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Through the coordinated setting of the cutting part and the clamping part, first, the height adjustment of the cutting machine can be achieved by driving the first hydraulic cylinder, and then the cutting action can be completed; second, when the first hydraulic cylinder is damaged, the upward movement of the pipe fitting can be achieved by the extension of the second hydraulic cylinder. When the pipe fitting moves upward and contacts the cutting machine during the upward movement, the cutting action can also be completed. Compared with the existing device, the emergency effect of this device is good, and even if the first hydraulic cylinder is damaged, it does not affect normal cutting.

[0017] Through the coordinated setting of the cutting part and the protection part, after the cutting is completed, it is necessary to drive the cutting machine to move upward. When the cutting machine moves upward, the protection plate can be driven to open through the mounting arm, without the need to drive the opening of the protection plate through a separate electric component, saving costs and improving the structural coordination of the equipment.

[0018] Through the coordinated setting of the clamping part and the cleaning part, on the one hand, the cutting action of the pipe fitting can be completed when the second hydraulic cylinder drives the clamping seat to move upward; on the other hand, after the second hydraulic cylinder drives the clamping seat to move upward, it is also convenient for the cleaning block to move to the rear of the clamping seat, facilitating the cleaning of the top surface of the equipment main body, reflecting better structural rationality.

[0019] Through the coordinated setting of the protection part and the cleaning part, on the one hand, the protection part can achieve the protection of sparks and cutting discs, and the residue on the equipment main body can be collected through the cleaning part; on the other hand, since the rear end surface of the cleaning block contacts the rear end surface of the protection plate after the two first electric cylinders contract, during use, when the flying cutting disc hits the protection plate, the protection ability of the protection plate can be improved under the support of the cleaning block for the protection plate, and the safety is higher.

[0020] Through the setting of the cleaning hole and the collection box, it can cooperate with the cleaning part to quickly clean the residue on the equipment main body, and the cleaning is fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0022] In the drawings: Figure 1 The perspective structural schematic diagram of the cutting device for rack processing and manufacturing according to the present invention is shown; Figure 2 The front view structural schematic diagram of the cutting device for rack processing and manufacturing according to the present invention is shown; Figure 3 The top view structural schematic diagram of the cutting device for rack processing and manufacturing according to the present invention is shown; Figure 4 The left view structural schematic diagram of the cutting device for rack processing and manufacturing according to the present invention is shown; Figure 5 shows the enlarged schematic structure diagram at position A according to the present invention Figure 4 ; Figure 6 shows the axonometric structure diagram after partial sectioning of the cutting device for rack processing and manufacturing according to the present invention Figure 7 shows the axonometric structure diagram of the clamping part according to the present invention Figure 8 shows the axonometric structure diagram of the cutting part according to the present invention

[0023] List of reference numerals 1. Equipment main body; 101. Cleaning hole; 102. Collection box 2. Cutting part; 201. First guiding column; 202. Mounting arm; 203. Cutting machine; 204. First hydraulic cylinder; 205. Spring rod; 206. Discharging block 3. Clamping part; 301. Connecting base block; 302. Clamping seat; 303. Second hydraulic cylinder; 304. Third hydraulic cylinder; 305. Clamping block 4. Pipe fitting 5. Protection part; 501. Sliding arm; 502. Protection plate 6. Cleaning part; 601. First electric cylinder; 602. Cleaning block 7. Limiting part; 701. Second electric cylinder; 702. Limiting block Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. It should also be understood that terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless clearly defined in the embodiments of the present invention

[0026] In the embodiments of the present invention, the use of "first", "second" and similar terms does not denote any order, quantity or importance, but is only used to distinguish different components. Similar terms such as "a", "an" or "the" do not denote a quantity limitation, but rather indicate the presence of at least one. Similarly, terms such as "comprising" or "including" mean that the element or item appearing before this word encompasses the element or item listed after this word and its equivalents, without excluding other elements or items. In the following description, spatial and orientation terms such as "upper", "lower", "front", "rear", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present invention, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the drawings and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connected", "coupled", "fixed" and "attached" may refer to a direct connection between two elements or structures without other elements or structures, or may refer to an indirect connection between two elements or structures through intermediate elements or structures, unless otherwise explicitly stated herein.

[0027] Embodiment 1: As shown in the Figure 1 to Figure 8 accompanying The present invention provides a cutting device for rack processing and manufacturing, including: a device main body 1; two first guiding columns 201 are welded on the top surface of the device main body 1, an installation arm 202 slides on the two first guiding columns 201, an installation arm 202 slides on the installation arm 202, a cutting machine 203 is fixed on the bottom end surface of the installation arm 202; a first hydraulic cylinder 204 is fixed on the top surface of the device main body 1, and the extending end of the first hydraulic cylinder 204 is fixed on the installation arm 202; a connecting base block 301 slides on the two first guiding columns 201, the connecting base block 301 is of an H-shaped structure, a second hydraulic cylinder 303 is fixed on the top surface of the device main body 1, and the extending end of the second hydraulic cylinder 303 is fixed on the bottom end surface of the connecting base block 301; two clamping seats 302 are fixed on the front end surface of the connecting base block 301, both clamping seats 302 are of a concave structure, two third hydraulic cylinders 304 are fixed on the top end surface of the inner wall of each clamping seat 302, the extending ends of the two second hydraulic cylinders 303 on the left are fixed on a clamping block 305, the extending ends of the two second hydraulic cylinders 303 on the right are fixed on another clamping block 305, a pipe fitting 4 is clamped between the two clamping blocks 305 and the two clamping seats 302. When cutting the pipe fitting 4, start the cutting machine 203 and drive the first hydraulic cylinder 204 to contract. At this time, the cutting machine 203 moves downward to complete the cutting of the pipe fitting 4; when the first hydraulic cylinder 204 is damaged and cannot extend or retract, drive the second hydraulic cylinder 303 to extend. The second hydraulic cylinder 303 drives the connecting base block 301 and the clamping seats 302 to move upward. At this time, the upward movement of the pipe fitting 4 is realized, and the emergency cutting is completed through the extension of the second hydraulic cylinder 303.

[0028] Among them, the connecting base block 301, the clamping seats 302, the second hydraulic cylinder 303, the third hydraulic cylinder 304 and the clamping blocks 305 together form a clamping part 3; clamping grooves of a V-shaped structure are provided on both the clamping seats 302 and the clamping blocks 305. During use, the stability of clamping can be improved through the clamping grooves of the V-shaped structure.

[0029] Among them, two spring rods 205 are fixed on the bottom end surface of the installation arm 202, a discharging block 206 is fixed on the extending end of each spring rod 205, both discharging blocks 206 are located below the pipe fitting 4, and the front sides of both discharging blocks 206 are of an inclined structure. After the two discharging blocks 206 move upward, the inclined surface of the discharging block 206 contacts the bottom end surface of the outer wall of the pipe fitting 4. After the first hydraulic cylinder 204 drives the installation arm 202 to move upward, the cut pipe fitting 4 can be lifted through the two discharging blocks 206. At this time, under the guidance of the inclined surface on the discharging block 206, the pipe fitting 4 slides forward, realizing the discharging of the cut pipe fitting 4. Compared with the existing device, this device does not require separate driving for discharging, and the structure is more reasonable.

[0030] Among them, the first guide post 201, the mounting arm 202, the cutting machine 203, the first hydraulic cylinder 204, the spring rod 205 and the unloading block 206 together form the cutting part 2.

[0031] Among them, a protection part 5 is installed on the equipment main body 1. The protection part 5 is composed of a sliding arm 501 and a protection plate 502. A sliding arm 501 is fixed to both the left end face and the right end face of the equipment main body 1. A protection plate 502 slides on the two sliding arms 501. The protection plate 502 is located directly in front of the cutting machine 203. During use, the sparks generated by cutting are blocked by the protection plate 502 and will not harm the staff in the front. Moreover, when the cutting disc breaks and flies forward, it can also be blocked by the protection plate 502, improving the safety of the equipment.

[0032] Among them, the protection plate 502 is of a T-shaped plate structure. The horizontal part of the protection plate 502 is aligned with the mounting arm 202. When the mounting arm 202 moves upward and contacts the horizontal part of the protection plate 502, during use, when the mounting arm 202 continues to move upward, the opening of the protection plate 502 can be realized. Compared with the existing device, this device does not need to drive the protection plate 502 to open separately, and the saved cost improves the structural integrity.

[0033] Among them, a limiting part 7 is installed on the equipment main body 1. The limiting part 7 is composed of a second electric cylinder 701 and a limiting block 702. A second electric cylinder 701 is fixed to the top end face of the equipment main body 1. A limiting block 702 is fixed to the extending end of the second electric cylinder 701. The left end face of the limiting block 702 contacts the right end of the pipe fitting 4. During use, the pipe fitting 4 is limited by the limiting block 702, and the cutting length of the pipe fitting 4 can be better controlled. Moreover, after the second electric cylinder 701 expands and contracts, the adjustment of the cutting length limit of the pipe fitting 4 can be realized, and the adjustability is high.

[0034] Among them, a cleaning part 6 is installed on the equipment main body 1. The cleaning part 6 is composed of a first electric cylinder 601 and a cleaning block 602. Two first electric cylinders 601 are fixed on the top end surface of the equipment main body 1, and the extending ends of the two first electric cylinders 601 are both fixed on the cleaning block 602. The cleaning block 602 is a rectangular block structure, and the bottom end surface of the cleaning block 602 contacts the top end surface of the equipment main body 1. When it is necessary to collect the residues on the top end surface of the equipment main body 1, first drive the first hydraulic cylinder 204 to extend. At this time, the mounting arm 202 drives the cutting machine 203, two discharging blocks 206 and the protective plate 502 to move upward until the bottom end surfaces of the discharging blocks 206 and the protective plate 502 are higher than the cleaning block 602. Then drive the second hydraulic cylinder 303 to extend. The second hydraulic cylinder 303 drives the connecting base block 301 and two clamping seats 302 to move upward until the height of the two clamping seats 302 is higher than the height of the cleaning block 602. Drive the two first electric cylinders 601 to extend, and the two first electric cylinders 601 drive the cleaning block 602 to move backward to complete the collection of the residues.

[0035] Among them, a cleaning hole 101 is opened at the rear position of the top end surface of the equipment main body 1. The cleaning hole 101 is a rectangular hole structure, and the cleaning hole 101 is aligned with the cleaning block 602. The width of the cleaning hole 101 is equal to the width of the cleaning block 602. A collection box 102 is fixed on the bottom end surface of the equipment main body 1. The collection box 102 is located directly below the cleaning hole 101. When the cleaning block 602 moves backward, it can collect the residues on the top end surface of the equipment main body 1 into the cleaning hole 101, and then fall into the collection box 102 through the cleaning hole 101 for collection.

[0036] Embodiment 2: On the basis of Embodiment 1, it further includes: when the two first electric cylinders 601 are fully contracted, the rear end surface of the cleaning block 602 contacts the rear end surface of the protective plate 502. During use, it can improve the protection strength of the protective plate 502 and improve the protection ability against the flying cutting disc.

[0037] The specific usage mode and function of this embodiment: Place the pipe fitting 4 in the clamping grooves on the two clamping seats 302, and push the pipe fitting 4 to the right until the right end face of the pipe fitting 4 contacts the left end face of the limit block 702. Drive the four third hydraulic cylinders 304 to extend. At this time, the two clamping blocks 305 and the clamping seats 302 complete the clamping of the pipe fitting 4. Start the cutting machine 203 and drive the first hydraulic cylinder 204 to contract. At this time, the cutting machine 203 moves downward to complete the cutting of the pipe fitting 4. When the first hydraulic cylinder 204 is damaged and cannot be telescoped, drive the second hydraulic cylinder 303 to extend. The second hydraulic cylinder 303 drives the connection base block 301 and the clamping seat 302 to move upward. At this time, the upward movement of the pipe fitting 4 is realized, and the emergency cutting is completed through the extension of the second hydraulic cylinder 303. After cutting, it is necessary to unload the cut pipe fitting 4. When unloading, first loosen the clamping block 305, and then drive the first hydraulic cylinder 204 to extend. After the first hydraulic cylinder 204 drives the mounting arm 202 to move upward, the cut pipe fitting 4 can be lifted by the two unloading blocks 206. At this time, under the guidance of the inclined surface on the unloading block 206, the pipe fitting 4 slides forward to realize the unloading of the cut pipe fitting 4. When it is necessary to collect the residues on the top end face of the equipment main body 1, first drive the first hydraulic cylinder 204 to extend. At this time, the mounting arm 202 drives the cutting machine 203, the two unloading blocks 206 and the protection plate 502 to move upward until the bottom end faces of the unloading blocks 206 and the protection plate 502 are higher than the cleaning block 602. Then drive the second hydraulic cylinder 303 to extend. The second hydraulic cylinder 303 drives the connection base block 301 and the two clamping seats 302 to move upward until the height of the two clamping seats 302 is higher than the height of the cleaning block 602. Drive the two first electric cylinders 601 to extend. The two first electric cylinders 601 drive the cleaning block 602 to move backward to complete the collection of the residues. When the cleaning block 602 moves backward, the residues on the top end face of the equipment main body 1 can be collected into the cleaning hole 101, and then fall into the collection box 102 through the cleaning hole 101 for collection.

[0038] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A cutting device for rack processing and manufacturing, characterized in that: include: The device body (1) comprises two first guide columns (201) welded on the top surface of the device body (1), a mounting arm (202) slidingly mounted on the two first guide columns (201), a mounting arm (202) slidingly mounted on the mounting arm (202), and a cutting machine (203) fixed on the bottom surface of the mounting arm (202); a first hydraulic cylinder (204) fixedly mounted on the top surface of the device body (1), the extended end of the first hydraulic cylinder (204) fixedly mounted on the mounting arm (202); a connecting base block (301) slidingly mounted on the two first guide columns (201), the connecting base block (301) being an H-shaped structure, and a first hydraulic cylinder (204) fixedly mounted on the top surface of the device body (1) Two hydraulic cylinders (303), the extended end of the second hydraulic cylinder (303) is fixed to the bottom end surface of the connecting base block (301); two clamping seats (302) are fixed to the front end surface of the connecting base block (301), the two clamping seats (302) are both concave structures, two third hydraulic cylinders (304) are fixed to the top end surface of the inner wall of each clamping seat (302), the extended ends of the two second hydraulic cylinders (303) on the left side are fixed to a clamping block (305), and the extended ends of the two second hydraulic cylinders (303) on the right side are fixed to another clamping block (305), and a pipe fitting (4) is clamped between the two clamping blocks (305) and the two clamping seats (302).

2. A cutting device for rack manufacturing as claimed in claim 1, characterized in that: The connecting base block (301), the clamping seat (302), the second hydraulic cylinder (303), the third hydraulic cylinder (304) and the clamping block (305) together form a clamping portion (3); the clamping seat (302) and the clamping block (305) are both provided with a clamping groove of a V-shaped structure.

3. A cutting device for rack manufacturing as claimed in claim 2, characterized in that: Two spring rods (205) are fixed to the bottom end surface of the mounting arm (202), and a discharge block (206) is fixed to the protruding end of each spring rod (205). The two discharge blocks (206) are both located below the pipe fitting (4), and the front sides of the two discharge blocks (206) are both inclined structures. When the two discharge blocks (206) move upward, the inclined surfaces of the discharge blocks (206) contact the bottom end surface of the outer wall of the pipe fitting (4).

4. A cutting device for rack manufacturing as claimed in claim 3, characterized in that: The first guide column (201), the mounting arm (202), the cutting machine (203), the first hydraulic cylinder (204), the spring rod (205) and the discharge block (206) together constitute the cutting section (2).

5. A cutting device for rack manufacturing as claimed in claim 4, characterized in that: A protective part (5) is installed on the device body (1), and the protective part (5) is composed of a sliding arm (501) and a protective plate (502). A sliding arm (501) is fixed to the left end face and the right end face of the device body (1), and a protective plate (502) slides on the two sliding arms (501). The protective plate (502) is located directly in front of the cutting machine (203).

6. A cutting device for rack manufacturing as claimed in claim 5, characterized in that: The protective plate (502) is a T-shaped plate structure, and a transverse portion of the protective plate (502) is aligned with the mounting arm (202). When the mounting arm (202) moves upward, it contacts the transverse portion of the protective plate (502).

7. A cutting device for rack manufacturing as claimed in claim 6, characterized in that: A limiting portion (7) is installed on the equipment body (1), and the limiting portion (7) is composed of a second electric cylinder (701) and a limiting block (702). A second electric cylinder (701) is fixed to the top surface of the equipment body (1), and a limiting block (702) is fixed to the protruding end of the second electric cylinder (701), and a left end surface of the limiting block (702) contacts the right end of the pipe (4).

8. A cutting device for rack manufacturing as claimed in claim 7, characterized in that: A cleaning part (6) is installed on the device body (1), and the cleaning part (6) is composed of a first electric cylinder (601) and a cleaning block (602). Two first electric cylinders (601) are fixed to the top surface of the device body (1), and the protruding ends of the two first electric cylinders (601) are fixed to the cleaning block (602). The cleaning block (602) is a rectangular block structure, and the bottom end surface of the cleaning block (602) is in contact with the top surface of the device body (1).

9. A cutting device for rack manufacturing as claimed in claim 8, characterized in that: A cleaning hole (101) is provided at the rear side of the top end surface of the device body (1); the cleaning hole (101) is a rectangular hole-shaped structure; the cleaning hole (101) is aligned with the cleaning block (602); the width of the cleaning hole (101) is equal to the width of the cleaning block (602); and a collecting box (102) is fixed to the bottom end surface of the device body (1); the collecting box (102) is located directly below the cleaning hole (101).

10. A cutting device for rack manufacturing as claimed in claim 9, characterized in that: When the two first electric cylinders (601) have completed their contraction, the rear end surface of the cleaning block (602) contacts the rear end surface of the protective plate (502).

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