A punching machine for door frame production

Abstract

The present invention relates to the technical field of punching equipment, and specifically to a punching machine for door frame production, comprising a punching machine body, a punching structure, a positioning structure, an identification structure, an anti-stuck structure, a fixing structure and a collecting frame; the positioning structure is convenient for positioning and fixing the door frame, thereby avoiding the influence of the door frame offset during the punching process on the processing quality of the product; the punching structure is convenient for punching the door frame; the anti-stuck structure is convenient for making the door frame slide off the die, thereby avoiding the door frame tilting and getting stuck on the die after the die is lifted for a certain distance, thereby avoiding the influence of the die sticking phenomenon on the punching processing efficiency; the identification structure is convenient for observing the sliding distance of the adjustment seat, and there is no need to repeatedly take the measuring tool to measure the position of each adjustment seat during adjustment, thereby improving the adjustment efficiency; the fixing structure is convenient for fixing the adjustment seat after sliding, thereby improving the stability between the adjustment seat and the guide rail.

Description

Technical Field

[0001] The invention relates to the technical field of punching equipment, in particular to a punching machine used for door frame production. Background Art

[0002] The door frame is a frame fixed on the left and right sides and top of the door opening, which is used to fix the door leaf and support the normal opening and closing of the door leaf. It is usually composed of two vertical frames and an upper frame. It is a key structure connecting the door leaf, the beam and the wall. The main function of the door frame is to modify the door opening and form an integral part with the door and door frame to ensure the normal function and service life of the door. During the production process, the door frame will be punched by a punching machine to facilitate the subsequent installation of accessories such as hinges and locks.

[0003] However, when the punching machine is punching holes in a door frame, an operator usually takes the door frame and places it on multiple adjustment seats, and then uses a die to perform the punching process. The operator takes the door frame and punches it under the die, which is prone to deviation during the punching process, thereby affecting the punching quality of the door frame; and when the die moves upward after the punching is completed, due to the long length of the door frame, after the door frame is lifted for a certain distance, if the door frame tilts, it will cause the door frame to be stuck on the die, thereby causing die jamming. Die jamming will extend the processing time because it takes more time to deal with die failures, thereby reducing production efficiency; and when the position of the die needs to be adjusted according to door frames of different lengths, the operator is required to use a handheld measuring tool to measure to ensure the accuracy of the measurement. During the measurement process, since the position of the adjustment seat needs to be remeasured after each adjustment to confirm whether the position is accurate, this process increases the measurement time, thereby affecting the adjustment efficiency of the die. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a punching machine for door frame production.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a punching machine for door frame production, comprising a punching machine body, a punching structure installed on the punching machine body, a positioning structure installed in the punching machine body, an identification structure installed between the punching machine body and the punching structure, and an anti-stuck structure connected to the positioning structure;

[0006] The punching structure includes two guide rails fixedly connected to the punching machine body and three adjustment seats slidably connected to the guide rails, the adjusting seat is provided with a first hydraulic rod, and the telescopic end of the first hydraulic rod is provided with a punching die, the positioning structure includes two slides slidably connected to the punching machine body and a fixed frame fixedly connected to the slide, a first screw rod is rotatably connected in the punching machine body, the slide is threadedly connected to the first screw rod, and the thread directions of the two ends of the first screw rod are opposite; the anti-stuck structure includes a block slidably connected to the two fixed frames and a third screw rod rotatably connected to one of the fixed frames, one of the blocks is threadedly connected to the third screw rod, a fixed rod is fixedly connected to the block, a fixed sleeve is fixedly connected to one of the fixed rods, and a sliding rod is fixedly connected to the other fixed rod, and the sliding rod is slidably connected to the fixed sleeve.

[0007] Specifically, a first guide column is installed on the punch die, and the first guide column is slidably connected to the adjustment seat.

[0008] Specifically, a protective cover is fixedly connected to the punching machine body, the slide plate is slidably connected to the protective cover, a first motor is installed on the punching machine body, and the first screw rod is fixedly connected to the output shaft of the first motor.

[0009] Specifically, a second hydraulic rod is fixedly connected to the punching machine body, and a support plate is fixedly connected to the telescopic end of the second hydraulic rod.

[0010] Specifically, a second guide column is fixedly connected inside the other fixed frame, and the other stopper is slidably connected to the second guide column.

[0011] Specifically, the identification structure includes four connecting blocks fixedly connected to the punching machine body and a second screw rod rotatably connected between two of the connecting blocks, a connecting plate is threadedly connected in the second screw rod, a guide shaft is fixedly connected between the other two connecting blocks, a connecting plate is slidably connected on the guide shaft, a baffle is fixedly connected between the two connecting plates, a scale bar is provided on the baffle, an identification plate is slidably connected to the adjustment seat, and the identification plate is slidably connected to the baffle.

[0012] Specifically, a guide rod is fixedly connected inside the adjustment seat, the identification plate is slidably connected to the guide rod, and a tension spring is fixedly connected between the identification plate and the adjustment seat.

[0013] Specifically, a mounting plate is fixedly connected to the rear of the punching machine body, a second motor is installed at the rear of the mounting plate, and the second screw rod is fixedly connected to the output shaft of the second motor.

[0014] Specifically, the adjustment seat is fixed to the guide rail through a fixing structure, and the fixing structure includes a slider slidably connected to the adjustment seat and a fixing column fixedly connected to the slider. A plurality of fixing holes are provided in the front guide rail, and the fixing column is engaged with one of the fixing holes. A fourth screw rod is rotatably connected in the adjustment seat, and the slider is threadedly connected to the fourth screw rod.

[0015] Specifically, a protective block is slidably connected to the fourth screw rod, an anti-dropout block is fixedly connected to the protective block, the anti-dropout block is slidably connected to the fourth screw rod, a spring is fixedly connected between the protective block and the fourth screw rod, and a collection frame is installed in the punching machine body.

[0016] The beneficial effects of the present invention are:

[0017] (1) The punching machine for door frame production described in the present invention has a punching structure on its body, a positioning structure on its body, and a collection frame installed in its body. The positioning structure is convenient for positioning and fixing the door frame, thereby preventing the displacement of the door frame during the punching process from affecting the processing quality of the product. The punching structure is convenient for punching the door frame, and the collection frame is convenient for collecting waste materials during punching, thereby preventing waste materials from falling on the ground and being inconvenient to clean up.

[0018] (2) The punching machine for door frame production described in the present invention has an anti-stuck structure on the positioning structure. The anti-stuck structure facilitates the door frame to slide off the die, thereby preventing the door frame from tilting and getting stuck on the die after the die is lifted a certain distance, thereby preventing the die from getting stuck and affecting the punching processing efficiency.

[0019] (3) The punching machine for door frame production described in the present invention has an identification structure between the punching machine body and the punching structure, and the adjustment seat is fixed to the guide rail by a fixing structure. The setting of the identification structure facilitates the observation of the sliding distance of the adjustment seat, and there is no need to repeatedly take out the measuring tool to measure the position of each adjustment seat during adjustment, thereby improving the adjustment efficiency. The setting of the fixing structure facilitates the fixation of the adjustment seat after sliding, thereby improving the stability between the adjustment seat and the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a punching machine for door frame production provided by the present invention;

[0022] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of section A is shown;

[0023] Figure 3It is a schematic diagram of the connection structure between the first screw rod and the punching machine body of the present invention;

[0024] Figure 4 for Figure 3 An enlarged schematic diagram of the structure of part B is shown;

[0025] Figure 5 It is a schematic diagram of the connection structure between the slide plate and the protective cover of the present invention;

[0026] Figure 6 It is a schematic diagram of the connection structure between the first screw rod and the slide plate of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection structure between the guide rail and the adjustment seat of the present invention;

[0028] Figure 8 for Figure 7 An enlarged schematic diagram of the C-section structure is shown;

[0029] Fig. 9 It is a schematic diagram of the connection structure between the fixing column and the guide rail of the present invention;

[0030] Fig.10 for Fig. 9 An enlarged schematic diagram of the D structure is shown.

[0031] In the figure: 1. Punching machine body; 2. Punching structure; 201. Guide rail; 202. Adjusting seat; 203. First hydraulic rod; 204. Punching die; 205. First guide column; 3. Positioning structure; 301. Slide plate; 302. Fixed frame; 303. First screw rod; 304. Protective cover; 305. First motor; 306. Second hydraulic rod; 307. Butt plate; 4. Marking structure; 401. Connecting block; 402. Second screw rod; 403. Connecting plate; 404. Baffle plate; 405. Scale bar; 406, identification plate; 407, guide rod; 408, tension spring; 409, guide shaft; 410, mounting plate; 411, second motor; 5, anti-stuck structure; 501, block; 502, third screw rod; 503, fixed rod; 504, fixed sleeve; 505, slide rod; 506, second guide column; 6, fixed structure; 601, slider; 602, fixed column; 603, fixed hole; 604, fourth screw rod; 605, protective block; 606, anti-slip block; 607, spring; 7, collection frame. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig. 9 , Figure 8 and Fig. 9 As shown, a punching machine for door frame production described in the present invention includes a punching machine body 1, a punching structure 2 installed on the punching machine body 1, a positioning structure 3 installed in the punching machine body 1, an identification structure 4 installed between the punching machine body 1 and the punching structure 2, and an anti-stuck structure 5 connected to the positioning structure 3; the punching structure 2 includes two guide rails 201 fixedly connected to the punching machine body 1 and three adjustment seats 202 slidably connected to the guide rails 201, a first hydraulic rod 203 is installed on the adjustment seat 202, and a punching die 204 is installed at the telescopic end of the first hydraulic rod 203, and the positioning structure 3 includes two slide plates 301 slidably connected to the punching machine body 1 and a fixedly connected slide plate 302. A fixed frame 302 connected to the slide plate 301, a first screw rod 303 is rotatably connected in the punching machine body 1, the slide plate 301 is threadedly connected to the first screw rod 303, and the threads at both ends of the first screw rod 303 are in opposite directions; the anti-stuck structure 5 includes a stopper 501 slidably connected to the two fixed frames 302 and a third screw rod 502 rotatably connected to one of the fixed frames 302, one of the stoppers 501 is threadedly connected to the third screw rod 502, a fixed rod 503 is fixedly connected to the stopper 501, a fixed sleeve 504 is fixedly connected to one of the fixed rods 503, and a sliding rod 505 is fixedly connected to the other fixed rod 503, and the sliding rod 505 is slidably connected to the fixed sleeve 504.

[0034] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, a first guide column 205 is installed on the punching die 204, and the first guide column 205 is slidably connected to the adjustment seat 202. A protective cover 304 is fixedly connected in the punching machine body 1, and the slide plate 301 is slidably connected to the protective cover 304. A first motor 305 is installed on the punching machine body 1, and the first screw rod 303 is fixedly connected to the output shaft of the first motor 305. A second hydraulic rod 306 is fixedly connected to the punching machine body 1, and the telescopic end of the second hydraulic rod 306 is fixedly connected to a stop plate 307. When punching is required, the door frame is placed on a plurality of adjustment seats 202, and the rear side of the door frame is in contact with the baffle 404. Then, by starting the second hydraulic rod 306, the telescopic end of the second hydraulic rod 306 is extended to drive the stop plate 307 to move. At this time, the stop plate 307 cooperates with the baffle 404 to fix the door frame. At the same time, by starting the first motor 305, the first screw rod 303 is driven to rotate when the output shaft of the first motor 305 rotates. The threads at both ends of the first screw rod 303 are in opposite directions, so the two slide plates 301 can be driven to slide towards each other. When the slide plates 301 slide towards each other, they drive the fixed frame 302 to position and fix the door frame. The stop plate 307, the baffle plate 404 and the two fixed frames 302 are used together to facilitate the positioning and fixing of the door frame, thereby avoiding the displacement of the door frame during the punching process and affecting the processing quality of the product. After the fixation is completed, by starting the first hydraulic rod 203, the telescopic end of the first hydraulic rod 203 is extended and drives the die 204 to move downward. When the die 204 moves, it drives the first guide column 205 to slide on the adjustment seat 202. The setting of the first guide column 205 makes the movement of the die 204 more stable. At the same time, the die 204 punches the door frame. The waste materials during the punching will fall into the collection frame 7 for collection to avoid falling on the ground and being inconvenient to clean. At the same time, the setting of the protective cover 304 is convenient for protecting the first screw rod 303 to avoid the waste materials falling on the first screw rod 303 and causing an impact.

[0035] Specifically, Figure 5 and Figure 6As shown, another fixed frame 302 is fixedly connected with a second guide column 506, and another stopper 501 is slidably connected to the second guide column 506. After punching is completed, the first hydraulic rod 203 can be retracted, and the first hydraulic rod 203 drives the die 204 to move upward when it is retracted. At this time, the stopper 501 in the fixed frame 302 can resist the two ends of the door frame so that the door frame can slide off the die 204. The setting of the stopper 501 can make the door frame slide off the die 204, so that the door frame is prevented from tilting and getting stuck on the die after the die 204 is lifted for a distance, thereby preventing the die from getting stuck and affecting the processing efficiency of the punching. When the position of the stopper 501 needs to be adjusted according to the thickness of the door frame, the hexagonal wrench is used to adjust the position of the stopper 501. The hand is inserted into the hexagonal groove on the third screw rod 502, and the third screw rod 502 is rotated by the hexagonal wrench. When the third screw rod 502 rotates, it drives one of the blocks 501 to move upward, and the block 501 drives the fixed rod 503 to move upward. The fixed rod 503 drives the other fixed rod 503 to move through the fixed sleeve 504 and the sliding rod 505, so that the other fixed rod 503 drives the other block 501 to move. At this time, the adjustment of the position of the block 501 is completed, and the other block 501 will slide with the second guide column 506. The setting of the second guide column 506 makes the movement of the block 501 more stable. At the same time, through the sliding cooperation between the fixed sleeve 504 and the sliding rod 505, it will not cause any impact when the two slide plates 301 slide towards each other.

[0036] Specifically, Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the identification structure 4 includes four connecting blocks 401 fixedly connected to the punching machine body 1 and a second screw rod 402 rotatably connected between two of the connecting blocks 401, a connecting plate 403 is threadedly connected in the second screw rod 402, a guide shaft 409 is fixedly connected between the other two connecting blocks 401, a connecting plate 403 is slidably connected on the guide shaft 409, a baffle 404 is fixedly connected between the two connecting plates 403, a scale bar 405 is provided in the baffle 404, an identification plate 406 is slidably connected to the adjustment seat 202, the identification plate 406 is slidably connected to the baffle 404, a guide rod 407 is fixedly connected in the adjustment seat 202, and the identification plate 406 is slidably connected to the guide rod 407 Sliding connection, a tension spring 408 is fixedly connected between the identification plate 406 and the adjustment seat 202, a mounting plate 410 is fixedly connected to the rear of the punching machine body 1, a second motor 411 is installed behind the mounting plate 410, the second screw rod 402 is fixedly connected to the output shaft of the second motor 411, the adjustment seat 202 is fixed to the guide rail 201 through a fixing structure 6, the fixing structure 6 includes a slider 601 slidably connected to the adjustment seat 202 and a fixing column 602 fixedly connected to the slider 601, a plurality of fixing holes 603 are provided in the front guide rail 201, the fixing column 602 is engaged with one of the fixing holes 603, a fourth screw rod 604 is rotatably connected in the adjustment seat 202, the slider 601 is threadedly connected with the fourth screw rod 604, and a protective block 605 is slidably connected to the fourth screw rod 604, and an anti-slip block 606 is fixedly connected to the protective block 605, and the anti-slip block 606 is slidably connected to the fourth screw rod 604, and a spring 607 is fixedly connected between the protective block 605 and the fourth screw rod 604. A collection frame 7 is installed in the punching machine body 1. When the position of the adjustment seat 202 needs to be adjusted, the protective block 605 is pressed by the hexagonal wrench. When the protective block 605 slides into the fourth screw rod 604, the spring 607 contracts, and then the fourth screw rod 604 is rotated by the hexagonal wrench. When the fourth screw rod 604 rotates, the thread drives the slider 601 to move downward, and when the slider 601 moves downward, it drives the fixed column 60 2 is no longer engaged with the guide rail 201, and then the adjusting seat 202 slides on the guide rail 201. When the adjusting seat 202 moves, it will drive the identification plate 406 to cooperate with the scale bar 405 on the baffle 404. The identification plate 406 and the scale bar 405 are used in combination to facilitate the observation of the sliding distance of the adjusting seat 202, so as to adjust the position of the punching die 204 according to the punching positions of door frames of different lengths, and there is no need to repeatedly take out the measuring tool to measure the position of each adjusting seat 202 during adjustment, thereby improving the adjustment efficiency. When the adjustment is completed, the fourth screw rod 604 is rotated to drive the slider 601 to move upward, so that the slider 601 drives the fixing column 602 to move upward until it is engaged with the fixing hole 603 on the guide rail 201.The fixing column 602 is engaged with the fixing hole 603, so that the adjustment seat 202 after sliding is easily fixed, and the stability between the adjustment seat 202 and the guide rail 201 is improved. When the position of the baffle 404 needs to be adjusted according to the punching position of the door frame, the second motor 411 is started, and the output shaft of the second motor 411 drives the second screw rod 402 to rotate when it rotates. When the second screw rod 402 rotates, the thread drives the connecting plate 403 to move. When the connecting plate 403 moves, it drives another connecting plate 403 and the guide shaft 409 to slide through the baffle 404. The setting of the guide shaft 409 makes the movement of the connecting plate 403 more stable. At this time, the position of the baffle 404 is adjusted. When the baffle 404 is adjusted, due to the setting of the tension spring 408, the identification plate 406 can slide on the guide rod 407, so that the identification plate 406 is always in contact with the baffle 404.

[0037] When the present invention is in use, when punching is required, the door frame is placed on the plurality of adjustment seats 202, and the rear side of the door frame is in contact with the baffle plate 404, and then the second hydraulic rod 306 is started, and the telescopic end of the second hydraulic rod 306 is extended to drive the abutment plate 307 to move, and at this time, the abutment plate 307 cooperates with the baffle plate 404 to fix the door frame, and at the same time, the first motor 305 can be started, and the output shaft of the first motor 305 drives the first screw rod 303 to rotate when it rotates. Since the threads at both ends of the first screw rod 303 are in opposite directions, the two slide plates 301 can be driven to slide toward each other, and when the slide plates 301 slide toward each other, they drive the fixed frame 302 to position and fix the door frame, and the abutment plate 307, the baffle plate 404 and the two fixed frames 302 cooperate to fix the door frame. The first guide post 205 is driven by the first hydraulic rod 203 to slide on the adjusting seat 202 when the die 204 moves. The setting of the first guide post 205 makes the movement of the die 204 more stable. At the same time, the die 204 performs punching processing on the door frame. The waste materials during the punching process will fall into the collection frame 7 for collection, so as to avoid falling on the ground and being inconvenient to clean up. At the same time, the setting of the protective cover 304 is convenient for protecting the first screw rod 303, so as to avoid the waste materials falling on the first screw rod 303 and causing an impact.

[0038] After the punching is completed, the first hydraulic rod 203 can be retracted, and the first hydraulic rod 203 can drive the die 204 to move upward when it is retracted. At this time, the stopper 501 in the fixed frame 302 can resist the two ends of the door frame so that the door frame can slide off the die 204. The setting of the stopper 501 can make the door frame slide off the die 204, so as to avoid the door frame tilting and getting stuck on the die after the die 204 is lifted for a distance, thereby avoiding the die jamming phenomenon that affects the processing efficiency of the punching. When the position of the stopper 501 needs to be adjusted according to the thickness of the door frame, the hexagonal slot on the third screw rod 502 is inserted through the hexagonal wrench. The angle wrench rotates the third screw rod 502, and when the third screw rod 502 rotates, it drives one of the blocks 501 to move upward, and the block 501 drives the fixed rod 503 to move upward, and the fixed rod 503 drives the other fixed rod 503 to move through the fixed sleeve 504 and the slide rod 505, so that the other fixed rod 503 drives the other block 501 to move. At this time, the adjustment of the position of the block 501 is completed, and the other block 501 will slide with the second guide column 506. The setting of the second guide column 506 makes the movement of the block 501 more stable. At the same time, through the sliding cooperation between the fixed sleeve 504 and the slide rod 505, there will be no impact when the two slide plates 301 slide towards each other.

[0039] When the position of the adjustment seat 202 needs to be adjusted, the protective block 605 is pressed by the hexagonal wrench. When the protective block 605 slides into the fourth screw rod 604, the spring 607 contracts. Then, the fourth screw rod 604 is rotated by the hexagonal wrench. When the fourth screw rod 604 rotates, the thread drives the slider 601 to move downward. When the slider 601 moves downward, it drives the fixed column 602 to no longer engage with the guide rail 201. Then, the adjustment seat 202 slides on the guide rail 201. When the adjustment seat 202 moves, The marking plate 406 will be driven to cooperate with the scale bar 405 on the baffle plate 404. By using the marking plate 406 in cooperation with the scale bar 405, it is convenient to observe the sliding distance of the adjustment seat 202, so as to adjust the position of the punching die 204 according to the punching positions of the door frame of different lengths, and there is no need to repeatedly take the measuring tool to measure the position of each adjustment seat 202 during adjustment, thereby improving the adjustment efficiency. When the adjustment is completed, the fourth screw rod 604 is rotated to drive the slider 601 to move upward, so that the slider 601 drives the fixing column 602 to move upward until it is engaged with the fixing hole 603 on the guide rail 201. The fixing column 602 is engaged with the fixing hole 603, so that the adjustment seat 202 after sliding is fixed, thereby improving the stability between the adjustment seat 202 and the guide rail 201. When it is necessary to adjust the position of the baffle plate 404 according to the punching position of the door frame, the second motor 411 is started, and the output shaft of the second motor 411 drives the second screw rod 402 when it rotates. When the second screw rod 402 rotates, the thread drives the connecting plate 403 to move. When the connecting plate 403 moves, it drives the other connecting plate 403 and the guide shaft 409 to slide through the baffle 404. The setting of the guide shaft 409 makes the movement of the connecting plate 403 more stable. At this time, the position of the baffle 404 is adjusted. When the baffle 404 is adjusted, due to the setting of the tension spring 408, the identification plate 406 can slide on the guide rod 407, so that the identification plate 406 is always in contact with the baffle 404.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A punching machine for door frame production, characterized in that: The punching machine comprises a punching machine body (1), a punching structure (2) installed on the punching machine body (1), a positioning structure (3) installed in the punching machine body (1), an identification structure (4) installed between the punching machine body (1) and the punching structure (2), and an anti-stuck structure (5) connected to the positioning structure (3); The punching structure (2) comprises two guide rails (201) fixedly connected to the punching machine body (1) and three adjustment seats (202) slidably connected to the guide rails (201); a first hydraulic rod (203) is mounted on the adjustment seat (202); a punching die (204) is mounted on the telescopic end of the first hydraulic rod (203); the positioning structure (3) comprises two slide plates (301) slidably connected to the punching machine body (1) and a fixing frame (302) fixedly connected to the slide plates (301); a first screw rod (303) is rotatably connected to the punching machine body (1); the slide plate (301) is threadedly connected to the first screw rod (303); and the threads at both ends of the first screw rod (303) are in opposite directions; The anti-jamming structure (5) comprises a stopper (501) slidably connected to the two fixed frames (302) and a third screw rod (502) rotatably connected to one of the fixed frames (302), wherein one of the stoppers (501) is threadedly connected to the third screw rod (502), a fixed rod (503) is fixedly connected to the stopper (501), a fixed sleeve (504) is fixedly connected to one of the fixed rods (503), a sliding rod (505) is fixedly connected to the other fixed rod (503), and the sliding rod (505) is slidably connected to the fixed sleeve (504); A protective cover (304) is fixedly connected to the punching machine body (1), the slide plate (301) is slidably connected to the protective cover (304), a first motor (305) is installed on the punching machine body (1), and the first screw rod (303) is fixedly connected to the output shaft of the first motor (305); a second hydraulic rod (306) is fixedly connected to the punching machine body (1), and the telescopic end of the second hydraulic rod (306) is fixedly connected to a stop plate (307); a second guide column (506) is fixedly connected to the other fixed frame (302), and another stop block (501) is slidably connected to the second guide column (506); the identification structure (4) includes a fixed connection Four connecting blocks (401) on the punching machine body (1) are rotatably connected to a second screw rod (402) between two of the connecting blocks (401); a connecting plate (403) is threadedly connected in the second screw rod (402); a guide shaft (409) is fixedly connected between the other two connecting blocks (401); a connecting plate (403) is slidably connected to the guide shaft (409); a baffle (404) is fixedly connected between the two connecting plates (403); a scale bar (405) is provided in the baffle (404); an identification plate (406) is slidably connected to the adjustment seat (202); and the identification plate (406) is slidably connected to the baffle (404).

2. A punching machine for door frame production according to claim 1, characterized in that: A first guide column (205) is mounted on the punching die (204), and the first guide column (205) is slidably connected to the adjustment seat (202).

3. A punching machine for door frame production according to claim 1, characterized in that: A guide rod (407) is fixedly connected inside the adjustment seat (202), the identification plate (406) is slidably connected to the guide rod (407), and a tension spring (408) is fixedly connected between the identification plate (406) and the adjustment seat (202).

4. A punching machine for door frame production according to claim 3, characterized in that: A mounting plate (410) is fixedly connected to the rear of the punching machine body (1), a second motor (411) is installed to the rear of the mounting plate (410), and the second screw rod (402) is fixedly connected to the output shaft of the second motor (411).

5. The punching machine for door frame production according to claim 1, characterized in that: The adjustment seat (202) is fixed to the guide rail (201) via a fixing structure (6); the fixing structure (6) comprises a slider (601) slidably connected to the adjustment seat (202) and a fixing column (602) fixedly connected to the slider (601); a plurality of fixing holes (603) are provided in the front guide rail (201); the fixing column (602) is engaged with one of the fixing holes (603); a fourth screw rod (604) is rotatably connected to the adjustment seat (202); and the slider (601) is threadedly connected to the fourth screw rod (604).

6. A punching machine for door frame production according to claim 5, characterized in that: A protective block (605) is slidably connected to the fourth screw rod (604), an anti-dropping block (606) is fixedly connected to the protective block (605), the anti-dropping block (606) is slidably connected to the fourth screw rod (604), a spring (607) is fixedly connected between the protective block (605) and the fourth screw rod (604), and a collecting frame (7) is installed in the punching machine body (1).

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