A steel plate punching and cutting machine tool

Abstract

The present invention relates to the technical field of machining, and discloses a steel plate punching and cutting machine tool, which includes a C-shaped frame fixed on the cutting machine tool. One side of the upper end of the C-shaped frame is fixedly installed with an installation part, and one side of the lower end of the C-shaped frame is fixedly installed with a workbench. The lower end surface of the installation part is provided with an auxiliary component for pre-positioning the steel plate, the workbench is provided with an adjustment component for increasing the support range of the steel plate, and the upper end surface of the installation part is provided with a component for rotation. For the punching and cutting machine tool for steel plates, by setting the auxiliary component, the steel plate before punching can be pre-positioned, which is convenient for the staff to finely adjust the punching position of the steel plate, facilitating the accurate punching of the steel plate. And by setting the adjustment component, the expansion plate is combined with the support table, and then the expansion plate and the support table are fixed by screws in sequence, thus increasing the support range of the steel plate.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and particularly to a steel plate punching and cutting machine tool. Background Art

[0002] At present, numerical control machine tools are widely used in the cutting and processing of various types of steel plates. For square steel plates with through holes, a hydraulic cutting machine is required to cut large steel plates into small steel plates of corresponding specifications, and then a punching machine is used for punching. Generally, the existing punching and cutting devices are set separately. First, the steel plate is cut into the required size, and then it is sent to the punching machine for punching.

[0003] When the existing steel plate punching machine punches a thin-walled steel plate, it is generally cut by a small steel plate punching machine installed on the cutting machine tool. This punching machine has a small volume, is convenient for installation, disassembly and maintenance, and is relatively convenient. When punching, first, the steel plate is fixed by a clamping device in the steel plate punching machine, and then the steel plate is punched. However, when punching in this way, it is easy to have inaccurate positioning, and the expected punching effect cannot be achieved. In addition, the support range of the existing small steel plate punching machine is small, which is not convenient for use. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a steel plate punching and cutting machine tool, which has the advantages of fine-tuning the steel plate before punching and increasing the support area of the steel plate, and solves the problems of inaccurate positioning during punching of the existing steel plate and the small support range of the steel plate.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solutions: A steel plate punching and cutting machine tool includes a C-shaped frame fixed on the cutting machine tool. One side of the upper end of the C-shaped frame is fixedly installed with an installation part, and one side of the lower end of the C-shaped frame is fixedly installed with a workbench. The lower end surface of the installation part is provided with an auxiliary component for pre-positioning the steel plate. The workbench is internally provided with an adjustment component for increasing the support range of the steel plate. The upper end surface of the installation part is provided with a punching device for punching.

[0008] Preferably, the auxiliary assembly includes two groups of first telescopic rods fixedly installed on both sides of the lower end face of the installation part. The extending ends of the two groups of first telescopic rods on both sides are fixedly installed with mounting plates. A connecting plate is fixedly installed corresponding to the extending ends of the two groups of first telescopic rods on both sides. A support plate is fixedly installed between the two groups of first telescopic rods on one side. An auxiliary block is fixedly installed on one side of the support plate. A support block is fixedly installed on one side of the installation part. A first threaded rod is threadedly connected in the support block. One end of the first threaded rod passing through the support block is connected to the auxiliary block through a bearing. A first turning handle is fixedly installed at one end of the first threaded rod.

[0009] Preferably, two groups of second telescopic rods are fixedly installed on the lower end faces of the two mounting plates respectively. The extending ends of the two groups of second telescopic rods on both sides are fixedly installed with mounting seats. Thrust springs are sleeved on the outer walls of the second telescopic rods. The lower ends of the thrust springs are fixedly installed on the upper end faces of the mounting seats. A positioning block is fixedly installed at one end of each mounting seat. Fixed blocks are fixedly installed on both sides of the two mounting plates respectively.

[0010] Preferably, the adjusting assembly includes a cavity provided in the workbench. An opening is provided on one side of the cavity. The opening communicates with the C-shaped frame. A top plate is fixedly installed at a fixed position of the C-shaped frame close to the opening. A second threaded rod is rotatably connected in the top plate. A second threaded sleeve is threadedly connected to the outer wall of the second threaded rod. A second limiting groove is provided on the side wall of the opening. A second limiting block is fixedly installed on one side of the outer wall of the second threaded sleeve. The second limiting block is slidably connected in the second limiting groove. One end of the second threaded sleeve passing through the opening is fixedly installed with a plug pin. Grooves are provided at both ends of the workbench. Support platforms are provided in the grooves. Plug rods penetrate through both ends of the inner cavity of the cavity. Fixed pins are fixedly installed at the corresponding ends of the two plug rods. Compression springs are sleeved on the outer walls of the two plug rods respectively. The corresponding ends of the two compression springs are fixedly installed on the inner walls at both ends of the cavity. The corresponding ends of the two plug rods penetrate through the corresponding positions at both ends of the cavity and are fixedly installed on the outer walls of the support platforms. A second turning handle is fixedly installed at one end of the second threaded rod passing through the C-shaped frame.

[0011] Preferably, a main bevel gear is key-connected to the outer wall of the second threaded rod located in the C-shaped frame. Auxiliary plates are fixedly installed at both ends of the top plate. A third threaded rod is rotatably connected in the two auxiliary plates respectively. A sub-bevel gear is key-connected to the corresponding end of the third threaded rod passing through the auxiliary plate at both ends. The main bevel gear meshes with the two sub-bevel gears at both ends. A third threaded sleeve is threadedly connected to the outer wall of the third threaded rod at both ends. A third limiting block is fixedly installed on one side of the outer wall of the third threaded sleeve at both ends. The two third limiting blocks are slidably connected to one side of the inner cavity of the C-shaped frame.

[0012] Preferably, two groups of sliding grooves are provided on one side of the inner cavity of the C-shaped frame, and sliding blocks are slidably connected in the two groups of sliding grooves, and one end of the two groups of sliding blocks is fixedly installed with a connecting seat, and the corresponding end of the two groups of third screw sleeves is fixedly connected to the two groups of connecting seats, and the corresponding end of the two groups of connecting seats is fixedly connected with an adjusting plate through a rotating shaft, and an expansion plate is rotatably connected to one side of the adjusting plate, and a fourth limit block is fixedly installed on one side of the expansion plate, and two groups of slide rails are fixedly installed on one side of the inner cavity of the C-shaped frame, and the fourth limit block is correspondingly slidably connected to the slide rails, and when the expansion plate is engaged with the support plate, the support plate is correspondingly fixedly connected to the expansion plate through screws.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides a steel plate punching and cutting machine tool, which has the following beneficial effects:

[0015] 1. By setting up auxiliary components and turning the first handle, the mounting plate moves downward. When the mounting plate falls, the positioning block on the second telescopic rod is driven to pre-position the steel plate. At this time, the staff can fine-tune the drilling position according to the actual situation. After the adjustment is completed, turn the first handle and the mounting plate continues to move downward, so that the push spring on the positioning block sends deformation to absorb the pressure. Then the fixing blocks on both sides of the mounting plate fix the steel plate to ensure stability during drilling.

[0016] 2. By setting an adjustment component, by turning the second handle, when the pin contacts the two groups of fixed pins, the plug rods at both ends are driven to move backwards, thereby pushing the two groups of support seats out of the corresponding slots, and while the second threaded rod is rotated, the gear meshing drives the third threaded rods on both sides to rotate, so that the third screw sleeve pushes the connecting seat out, and when the connecting seat is pushed out, it drives the fourth limit block to disengage from the slide rail, so that the restriction of the expansion plate by the fourth limit block is released, and then the adjustment plate is rotated by the rotating shaft, and the expansion plate on the adjustment plate is rotated to make the expansion plate fit the support platform, and then the two groups of expansion plates are fixed to the support platform by screws in turn, thereby increasing the use range of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the external structure of a steel plate punching and cutting machine tool proposed by the present invention;

[0018] Figure 2 This is a schematic diagram of the external side view structure of a steel plate punching and cutting machine tool proposed by the present invention;

[0019] Figure 3 A cross-sectional view of the structure of an adjustment component in a steel plate punching and cutting machine tool proposed by the present invention;

[0020] Figure 4Schematic diagram of an auxiliary structure in a steel plate punching and cutting machine tool proposed by the present invention;

[0021] Figure 5 Enlarged schematic diagram at position a in a steel plate punching and cutting machine tool proposed by the present invention;

[0022] Figure 6 Enlarged schematic diagram at position b in a steel plate punching and cutting machine tool proposed by the present invention.

[0023] In the figure: 1, C-shaped frame; 2, mounting part; 3, workbench; 4, first telescopic rod; 5, mounting plate; 6, connecting plate; 7, support plate; 8, auxiliary block; 9, support block; 10, first threaded rod; 11, first turning handle; 12, second telescopic rod; 13, mounting seat; 14, pushing spring; 15, positioning block; 16, fixing block; 17, cavity; 18, opening; 19, top plate; 20, second threaded rod; 21, second threaded sleeve; 22, second limiting groove; 23, second limiting block; 24, bolt; 25, slotted groove; 26, support table; 27, inserting rod; 28, fixing pin; 29, compression spring; 30, second turning handle; 31, main bevel gear; 32, auxiliary plate; 33, third threaded rod; 34, auxiliary bevel gear; 35, third threaded sleeve; 36, third limiting block; 37, sliding groove; 38, sliding block; 39, connecting seat; 40, adjusting plate; 41, enlarging plate; 42, fourth limiting block; 43, slide rail; 100, auxiliary component; 101, adjusting component; 102, stamping device. Detailed implementation method

[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 shall fall within the protection scope of the present invention.

[0025] Embodiment 1:

[0026] Refer to the attached Figures 1-4, A steel plate punching and cutting machine tool, including a C-shaped frame 1 fixed on the cutting machine tool. On the left side of the upper end of the C-shaped frame 1, there is a fixed installation part 2. On the left side of the lower end of the C-shaped frame 1, there is a fixed installation workbench 3. On the lower end face of the installation part 2, there is an auxiliary component 100 for pre-positioning the steel plate. On the upper end face of the installation part 2, there is a stamping device 102 for punching. The stamping device 102 is a prior art. In this specification, the auxiliary component 100 includes two groups of first telescopic rods 4 fixedly installed on both sides of the lower end face of the installation part 2. On the extending ends of the two groups of first telescopic rods 4 on both sides, there is a fixed installation plate 5. Corresponding to each other between the extending ends of the two groups of first telescopic rods 4 on both sides, there is a fixed installation connecting plate 6. Between the two groups of first telescopic rods 4 on the left side, there is a fixed installation support plate 7. On the left side of the support plate 7, there is a fixed installation auxiliary block 8. On the left side of the installation part 2, there is a fixed installation support block 9. The support block 9 is internally threaded with a first threaded rod 10. One end of the first threaded rod 10 passing through the support block 9 is connected to the auxiliary block 8 through a bearing. On the upper end of the first threaded rod 10, there is a fixed installation first turning handle 11.

[0027] By setting the above device, by rotating the first turning handle 11, the first turning handle 11 drives the first threaded rod 10 to rotate in the auxiliary block 8. The first threaded rod 10 is in threaded connection with the support block 9, thereby driving the support plate 7 on the right side of the auxiliary block 8 to move downward. While the auxiliary block 8 moves downward, it drives the four groups of first telescopic rods 4 to extend through the support plate 7 and the connecting plate 6, so as to facilitate the next pre-positioning work.

[0028] On the lower end faces of the two installation plates 5, there are respectively fixed two groups of second telescopic rods 12. On the extending ends of the two groups of second telescopic rods 12 on both sides, there is a fixed installation seat 13. On the outer walls of the second telescopic rods 12, there are sleeved push springs 14. The push springs 14 are carbon springs with high strength, which are convenient for daily work use. The lower ends of the push springs 14 are fixedly installed on the upper end faces of the installation seats 13. At one end of each installation seat 13, there is a fixed installation positioning block 15. On both sides of the two installation plates 5, there are respectively fixed fixed blocks 16.

[0029] By setting the above device, when the installation plate 5 drops, it drives the positioning block 15 on the second telescopic rod 12 to pre-position the steel plate. At this time, the staff can finely adjust the drilling position. After the adjustment is completed, the installation plate 5 can continue to move downward until the fixed block 16 completely fixes the steel plate.

[0030] When the present invention is in use, first place the thin steel plate at the middle position on the upper end surface of the workbench 3, and then rotate the first turning handle 11. The first turning handle 11 drives the first threaded rod 10 to rotate within the auxiliary block 8. The first threaded rod 10 is threadedly connected to the support block 9, thereby driving the support plate 7 on the right side of the auxiliary block 8 to move downward. While the auxiliary block 8 moves downward, it drives the four groups of first telescopic rods 4 to extend, causing the mounting plate 5 to move downward. When the mounting plate 5 drops, it drives the positioning block 15 on the second telescopic rod 12 to pre-position the steel plate. Subsequently, stop rotating the first turning handle 11. At this time, the staff can fine-tune the drilling position according to the actual situation. After the adjustment is completed, rotate the first turning handle 11, and the mounting plate 5 continues to move downward, causing the top push spring 14 on the positioning block 15 to deform and absorb the pressure. Then, the fixing blocks 16 on both sides of the mounting plate 5 fix the steel plate, ensuring the stability during drilling of the stamping device 102.

[0031] Embodiment 2: The difference from Embodiment 1 is as follows;

[0032] Refer to the appendix Figures 2-6 , including an adjustment component 101 for increasing the support range of the steel plate. The adjustment component 101 includes a cavity 17 provided in the workbench 3. An opening 18 is provided on the right side of the cavity 17. The opening 18 communicates with the C-shaped frame 1. A top plate 19 is fixedly installed at a position close to the opening 18 of the C-shaped frame 1. A second threaded rod 20 is rotatably connected within the top plate 19. A bearing is provided within the top plate 19. The second threaded rod 20 passes through the inner ring of the bearing. Through the bearing's rotation function, the second threaded rod 20 rotates more stably. A second nut 21 is threadedly connected to the outer wall of the second threaded rod 20. A second limiting groove 22 is provided on the side wall of the opening 18. A second limiting block 23 is fixedly installed on one side of the outer wall of the second nut 21. The second limiting block 23 is slidably connected within the second limiting groove 22. One end of the second nut 21 passing through the opening 18 is fixedly installed with a plug pin 24. Support platforms 26 are provided in the slots 25 at both ends of the workbench 3. The two ends of the cavity 17 are respectively penetrated by inserting rods 27. Fixed pins 28 are fixedly installed at the corresponding ends of the two inserting rods 27. Compression springs 29 are respectively sleeved on the outer walls of the two inserting rods 27. The compression springs 29 are carbon springs with high strength, facilitating daily work use. The corresponding ends of the two compression springs 29 are fixedly installed on the inner walls at both ends of the cavity 17. The corresponding ends of the two inserting rods 27 penetrate through the corresponding positions at both ends of the cavity 17 and are fixedly installed on the outer walls of the support platforms 26. One end of the second threaded rod 20 passing through the C-shaped frame 1 is fixedly installed with a second turning handle 30. A bearing sleeve is provided at the position where the second threaded rod 20 passes through the C-shaped frame 1. Through the bearing's rotation function, the second threaded rod 20 rotates more smoothly.

[0033] By setting the above device, when the second turning handle 30 is rotated to drive the second threaded rod 20 to rotate, the second screw sleeve 21 is limited by the second limiting block 23, so that the second screw sleeve 21 drives the bolt 24 to move to the left. When the bolt 24 contacts the two fixing pins 28, the two inserting rods 27 at both ends move away from each other, so that the two supporting platforms 26 are pushed out, thus facilitating the support of the expansion plate 41.

[0034] A main bevel gear 31 is key-connected to the outer wall of the C-shaped frame 1 where the second threaded rod 20 is located. Auxiliary plates 32 are fixedly installed at both ends of the top plate 19. A third threaded rod 33 is rotatably connected inside the two auxiliary plates 32 at both ends. A sub-bevel gear 34 is key-connected to one end of the two third threaded rods 33 corresponding to passing through the auxiliary plates 32. The main bevel gear 31 meshes with the two sub-bevel gears 34 at both ends. A third screw sleeve 35 is threadedly connected to the outer walls of the two third threaded rods 33. A third limiting block 36 is fixedly installed on one side of the outer walls of the two third screw sleeves 35. The two third limiting blocks 36 are slidably connected to one side of the inner cavity of the C-shaped frame 1.

[0035] By setting the above device, when the second threaded rod 20 rotates, the main bevel gear 31 rotates. The two third threaded rods 33 on both sides are driven to rotate through gear meshing, and the third screw sleeve 35 is limited by the third limiting block 36, so that the third screw sleeve 35 pushes out the connecting seat 39, thus facilitating the adjustment of the following device.

[0036] Two sliding grooves 37 are provided on the left side of the inner cavity of the C-shaped frame 1. Sliding blocks 38 are slidably connected in the two sliding grooves 37. One ends of the two third screw sleeves 35 corresponding to each other are fixedly connected to the two connecting seats 39. One ends of the two sliding blocks 38 corresponding to each other are fixedly installed with connecting seats 39. A limiting member is provided at the front end of the sliding groove 37 to limit the sliding block 38, so that the connecting seat 39 will not slide out of the sliding groove 37. One ends of the two connecting seats 39 corresponding to each other are fixedly connected with an adjusting plate 40 through a rotating shaft. Expansion plates 41 are rotatably connected to the left sides of the adjusting plates 40. Fourth limiting blocks 42 are fixedly installed on the left sides of the expansion plates 41. Two slide rails 43 are fixedly installed on the right side of the inner cavity of the C-shaped frame 1. The fourth limiting blocks 42 corresponding to each other are slidably connected in the slide rails 43. When the expansion plates 41 are engaged with the supporting platforms 26, the corresponding supporting platforms 26 are fixedly connected to the expansion plates 41 through screws.

[0037] By setting the above device, when the connecting seat 39 is pushed out, the restriction of the fourth limiting block 42 on the expansion plate 41 is released. Then, the adjusting plate 40 is rotated through the rotating shaft, and the expansion plate 41 on the adjusting plate 40 is rotated, so that the expansion plate 41 is engaged with the supporting platform 26. Then, the two expansion plates 41 and the supporting platforms 26 are fixed through screws in sequence, thus increasing the usage range of the steel plate.

[0038] When the present invention is in use, the support range of the steel plate is increased by setting the adjusting component 101. First, rotate the second handle 30 to drive the second threaded rod 20 to rotate. The second sleeve 21 is limited by the second limit block 23, so that the second sleeve 21 drives the bolt 24 to move to the left. When the bolt 24 contacts the two fixed pins 28, it drives the two end inserting rods 27 to move away from each other, thereby pushing the two support platforms 26 out of the corresponding slots 25. At this time, the compression spring 29 deforms. While the second threaded rod 20 is rotating, the main bevel gear 31 rotates. The main bevel gear 31 meshes with the two end sub-bevel gears 34, driving the two side third threaded rods 33 to rotate. The third limit block 36 limits the third sleeve 35, so that the third sleeve 35 pushes out the connecting seat 39. When the connecting seat 39 is pushed out, it drives the fourth limit block 42 to disengage from the slide rail 43, so that the restriction of the fourth limit block 42 on the expansion plate 41 is released. Then, rotate the adjusting plate 40 through the rotating shaft and rotate the expansion plate 41 on the adjusting plate 40, so that the expansion plate 41 is combined with the support platform 26. Then, fix the two expansion plates 41 and the support platform 26 with screws in sequence, thus increasing the use range of the steel plate.

[0039] Similarly, when the adjusting component 101 is not needed, first remove the screws to separate the two expansion plates 41 and the support platform 26. Then, align the fourth limit blocks 42 on the two expansion plates 41 with the slide rail 43. Then, rotate the second handle 30 to drive the second threaded rod 20 to rotate. By retracting the bolt 24, the bolt 24 is no longer in contact with the two fixed pins 28. Then, under the action of the compression spring 29, the two support platforms 26 are retracted into the slots 25. At the same time, the two connecting seats 39 are retracted by gear meshing, so that the expansion plate 41 is retracted into the C-shaped frame 1.

[0040] It should be noted that the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel plate punching and cutting machine tool, including a C-shaped frame (1) fixed on the cutting machine tool. One side of the upper end of the C-shaped frame (1) is fixedly installed with an installation part (2), and one side of the lower end of the C-shaped frame (1) is fixedly installed with a workbench (3). It is characterized in that: An auxiliary component (100) for pre-positioning the steel plate is provided on the lower end surface of the installation part (2), and an adjusting component (101) for increasing the support range of the steel plate is provided in the workbench (3). The adjusting component (101) includes a cavity (17) provided in the workbench (3). An opening (18) is provided on one side of the cavity (17), and the opening (18) communicates with the C-shaped frame (1). A top plate (19) is fixedly installed at a position of the C-shaped frame (1) close to the opening (18). A second threaded rod (20) is rotatably connected in the top plate (19). A second screw sleeve (21) is threadedly connected to the outer wall of the second threaded rod (20). A second limiting groove (22) is provided on the side wall of the opening (18). A second limiting block (23) is fixedly installed on one side of the outer wall of the second screw sleeve (21), and the second limiting block (23) is slidably connected in the second limiting groove (22). One end of the second screw sleeve (21) passing through the opening (18) is fixedly installed with a plug pin (24). Grooves (25) are provided at both ends of the workbench (3), and support platforms (26) are provided in the grooves (25). Plug rods (27) penetrate through both ends of the inner cavity of the cavity (17). Fixed pins (28) are fixedly installed at the corresponding ends of the two plug rods (27). Compression springs (29) are respectively sleeved on the outer walls of the two plug rods (27). One end of each of the two compression springs (29) is fixedly installed on the inner walls at both ends of the cavity (17). The corresponding ends of the two plug rods (27) penetrate through the corresponding ends of the cavity (17) and are fixedly installed on the outer walls of the support platforms (26). One end of the second threaded rod (20) penetrating through the C-shaped frame (1) is fixedly installed with a second turning handle (30). A main bevel gear (31) is key-connected to the outer wall of the second threaded rod (20) located on the C-shaped frame (1). Auxiliary plates (32) are fixedly installed at both ends of the top plate (19). A third threaded rod (33) is rotatably connected in each of the two auxiliary plates (32). Sub bevel gears (34) are key-connected to the corresponding ends of the two third threaded rods (33) passing through the auxiliary plates (32). The main bevel gear (31) meshes with the two sub bevel gears (34). Third screw sleeves (35) are threadedly connected to the outer walls of the two third threaded rods (33). Third limiting blocks (36) are fixedly installed on one side of the outer walls of the two third screw sleeves (35), and the two third limiting blocks (36) are slidably connected to one side of the inner cavity of the C-shaped frame (1). On one side of the inner cavity of the C-shaped frame (1), there are two groups of sliding grooves (37). Two sliding blocks (38) are slidably connected in the two groups of sliding grooves (37). One end of the two sliding blocks (38) is fixedly installed with a connecting seat (39). One end of the two third screw sleeves (35) corresponding to each other is fixedly connected to the two connecting seats (39). One end of the two connecting seats (39) corresponding to each other is fixedly connected with an adjusting plate (40) through a rotating shaft. An expanding plate (41) is rotatably connected to one side of the adjusting plate (40). A fourth limiting block (42) is fixedly installed on one side of the expanding plate (41). Two slide rails (43) are fixedly installed on one side of the inner cavity of the C-shaped frame (1). The fourth limiting block (42) corresponding to each other is slidably connected in the slide rail (43). When the expanding plate (41) is engaged with the support table (26), the support table (26) corresponding to each other is fixedly connected to the expanding plate (41) through screws. A stamping device (102) for punching holes is provided on the upper end surface of the installation part (2).

2. A steel plate punching and cutting machine tool according to claim 1, characterized in that: The auxiliary assembly (100) includes two groups of first telescopic rods (4) fixedly installed on both sides of the lower end surface of the installation part (2). The extending ends of the two groups of first telescopic rods (4) on both sides are fixedly installed with a mounting plate (5). A connecting plate (6) is fixedly installed corresponding to each other between the extending ends of the two groups of first telescopic rods (4) on both sides. A support plate (7) is fixedly installed between the two groups of first telescopic rods (4) on one side. An auxiliary block (8) is fixedly installed on one side of the support plate (7). A support block (9) is fixedly installed on one side of the installation part (2). A first threaded rod (10) is threadedly connected in the support block (9). One end of the first threaded rod (10) passing through the support block (9) is connected to the auxiliary block (8) through a bearing. A first turning handle (11) is fixedly installed at one end of the first threaded rod (10).

3. A steel plate punching and cutting machine tool according to claim 2, characterized in that: Two groups of second telescopic rods (12) are respectively fixedly installed on the lower end surfaces of the two mounting plates (5). The extending ends of the two groups of second telescopic rods (12) on both sides are fixedly installed with a mounting seat (13). A pushing spring (14) is sleeved on the outer wall of each of the second telescopic rods (12). The lower ends of the pushing springs (14) are fixedly installed on the upper end surfaces of the mounting seats (13). A positioning block (15) is fixedly installed at one end of each of the mounting seats (13). Fixed blocks (16) are respectively fixedly installed on both sides of the two mounting plates (5).

Images