Aluminum alloy pedal double-end punching machine

Abstract

The utility model discloses an aluminum alloy pedal double-end punching machine which comprises a machine table frame body, two hydraulic punching units distributed in a bilateral symmetry mode are arranged above the machine table frame body, linear guide rails are arranged on the two sides of the top of the machine table frame body, sliding sleeves are arranged at the bottoms of the hydraulic punching units on the two sides, and the linear guide rails are arranged on the sliding sleeves. The sliding sleeve on the left side is fixedly connected with the linear guide rail, the sliding sleeve on the right side is slidably connected with the linear guide rail, and a position adjusting mechanism is arranged between the machine rack body and the sliding sleeve on the right side. The hydraulic punching unit comprises a support, an oil hydraulic cylinder, an upper die, a punching needle, a lower die, an ejector rod, a cushion protruding plate, an upper die insert, a lower die base, a lower die sliding block and a lower die fixing plate, the lower die base is arranged above the machine rack body, and the bottom of the lower die base is connected with the sliding sleeve on the same side. Tool setting, punching, stripping and size adjusting are all automatically completed, the machining efficiency is high, the punched hole position is free of deviation caused by human factors, and the quality is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of building aluminum alloy footrest products, in particular to a double-head punching machine for aluminum alloy pedals. Background Technique

[0002] Building aluminum alloy footrests play an important role. With the development of the construction industry, the demand for footrests has increased. Aluminum alloy materials are favored due to their high strength, light weight, strong corrosion resistance, etc. They can be used in various construction projects, such as stairs, platforms, etc., providing a safe and stable stepping surface for construction workers, ensuring construction safety, and being an indispensable component in the construction field.

[0003] The existing production process mainly uses two sets of punching presses and two sets of punching dies to stamp and process aluminum alloy footrests. Two workers are required for the two punching presses to perform assembly line operations. It is necessary to manually insert the materials into the die cavity and manually control the positioning. After one end is punched, another worker turns the aluminum pedal around and inserts the other end of the pedal into the die cavity on the other punching press to complete the punching operation of the other end. In this way, the production efficiency is extremely low, and due to the different feeding methods of the workers, it is impossible to ensure the accurate positioning of each piece of material, resulting in deviation of the punched hole positions, which brings difficulties to subsequent assembly.

[0004] Therefore, a double-head punching machine for aluminum alloy pedals is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to propose a double-head punching machine for aluminum alloy pedals to solve the above problems.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] An aluminum alloy pedal double - head punching machine, including a machine platform frame body. Above the machine platform frame body, there are two hydraulically - punching units symmetrically distributed left and right. On both sides of the top of the machine platform frame body, there are linear guide rails. On the bottom of both hydraulically - punching units, there are sliding sleeves. The left sliding sleeve is fixedly connected to the linear guide rail, and the right sliding sleeve is slidably connected to the linear guide rail. A position - adjusting mechanism is arranged between the machine platform frame body and the right sliding sleeve. The hydraulically - punching unit includes a bracket, an oil - pressure cylinder, an upper die, a punch needle, a lower die, a top - material rod, a pad convex plate, an upper - die insert, a lower - die base, a lower - die slider, and a lower - die fixing plate. Above the machine platform frame body, there is a lower - die base whose bottom is connected to the sliding sleeve on the same side. The top of the lower - die base is slidably connected with a lower - die fixing plate. On the top of the lower - die fixing plate, there is a bracket. Inside the bracket, there is an upper die. On the top of the bracket, there is an oil - pressure cylinder between the telescopic shaft and the upper die. At the bottom of the upper die, there is a punch needle. On the top of the lower - die fixing plate, there are a lower die and a pad convex plate. An elastic mechanism is arranged between the lower - die base and the lower - die fixing plate. On the elastic mechanism, there is a top - material rod penetrating to one side of the lower die. On the elastic mechanism, there is a lower - die slider. At the bottom of the upper die, there is an upper - die insert corresponding to the lower - die slider. One end of the upper - die insert away from the elastic mechanism and one end of the upper - die insert are both provided with inclined surfaces.

[0008] Preferably, the bottom of the lower - die fixing plate is provided with a sliding seat. The inner side wall of the sliding seat is provided with a ball bearing abutted against the surface of the lower - die base. On both sides of the sliding seat, there are a first sliding - seat limiting plate and a second sliding - seat limiting plate whose bottoms are connected to the lower - die base respectively. On the top of the first sliding - seat limiting plate, there is a third sliding - seat limiting plate whose one end extends directly above the sliding seat.

[0009] Preferably, the lower die further includes a die - cavity insert. Die - cavity inserts are arranged on the front and rear sides of the lower die. On the top of the die - cavity insert, there is a stripping plate. On the top of the stripping plate, there are inner - hexagon screws sequentially penetrating the stripping plate and the die - cavity insert and threadedly connected to the lower - die fixing plate. On the top of the lower - die fixing plate, there are two die - cavity inserts located on both sides of the lower die. On both sides of the stripping plate and the die - cavity insert, there are small semi - circular grooves and large semi - circular grooves respectively. On one side of the die - cavity insert and both sides of the lower die, there are large semi - circular protrusions and small semi - circular protrusions respectively. The large semi - circular protrusions and the small semi - circular protrusions respectively extend into the large semi - circular grooves and the small semi - circular grooves one by one.

[0010] Preferably, a guide - pillar hole is opened on the top of the lower die. At the bottom of the upper die, there is a guide pillar extending into the guide - pillar hole.

[0011] Preferably, the top of the lower - die fixing plate is provided with a concave block. One end of the lower - die slider away from the elastic mechanism extends into the concave block.

[0012] Preferably, the position adjusting mechanism includes a servo motor, a transmission lead screw, an internally threaded block and a bearing block. A servo motor is provided at the top of the machine table frame body. A transmission lead screw is provided on the output shaft of the servo motor. A bearing block is rotatably connected between the other end of the transmission lead screw and the bottom of the left lower die holder. An internally threaded block with one end connected to the bottom of the right lower die holder is drivingly connected to the transmission lead screw.

[0013] Preferably, the elastic mechanism includes a bolt, a fixing plate and a pushing spring. A fixing plate is provided on one side of the top of the lower die holder. A bolt penetrating through the fixing plate is provided outside the lower die fixing plate. A pushing spring with one end connected to its head and the other end connected to the outside of the fixing plate is sleeved on the bolt.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] First, the equipment only requires one person to operate, saving one labor compared with the traditional solution, and the efficiency is doubled compared with the traditional process. Moreover, the operation is simple and there is no technical requirement for on-site operators.

[0016] Second, the equipment adopts semi-automatic operation. Workers only perform feeding and taking, and operations such as tool setting, punching, material stripping, and size adjustment are automatically completed by the equipment. And the punched positions will not deviate due to human factors, ensuring stable quality. Description of the Drawings

[0017] The drawings further illustrate the present utility model, but the content in the drawings does not constitute any limitation to the present utility model.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a bottom view of the present utility model;

[0020] Figure 3 is a front view of the present utility model;

[0021] Figure 4 is a three-dimensional structural schematic diagram of the hydraulic punching unit of the present utility model;

[0022] Figure 5 is a front sectional view of the hydraulic punching unit of the present utility model;

[0023] Figure 6 is a top sectional view of the present utility model in the A-A direction;

[0024] Figure 7 is a right view of the partial structure of the present utility model.

[0025] In the attached drawings: 1. Hydraulic punching unit; 10. Bracket; 11. Oil cylinder; 12. Upper die; 13. Guide pillar; 14. Punching needle; 15. Lower die; 16. Stripping rod; 18. Stripping plate; 19. Die insert; 110. Pad convex plate; 112. Slide seat; 113. First slide seat limit plate; 114. Second slide seat limit plate; 115. Third slide seat limit plate; 116. Upper die insert; 117. Concave block; 118. Bolt; 119. Fixed plate; 120. Pushing spring; 121. Slide sleeve; 122. Lower die base; 123. Ball bearing; 124. Lower die slider; 125. Lower die fixed plate; 126. Die insert block; 3. Electric control box; 31. Servo motor; 32. Transmission lead screw; 310. Internal thread block; 311. Bearing seat; 5. Machine frame; 51. Linear guide rail. Detailed implementation manners

[0026] The following is a detailed description of the implementation manners of the present utility model. The examples of the implementation manners are shown in the attached drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the attached drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached drawings. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality of" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection capable of mutual communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0029] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0030] In this embodiment, by Figure 1-4Provided is a double-head punching machine for aluminum alloy pedals. The utility model includes a machine platform frame body 5. Above the machine platform frame body 5, there are two hydraulically punching units 1 symmetrically distributed left and right. On both sides of the top of the machine platform frame body 5, there are linear guide rails 51. At the bottom of both hydraulically punching units 1, there are sliding sleeves 121. The left sliding sleeve 121 is fixedly connected to the linear guide rail 51, and the right sliding sleeve 121 is slidably connected to the linear guide rail 51. A position adjustment mechanism is provided between the machine platform frame body 5 and the right sliding sleeve 121. The hydraulically punching unit 1 includes a bracket 10, an oil cylinder 11, an upper die 12, a punch pin 14, a lower die 15, a blanking rod 16, a pad convex plate 110, an upper die insert 116, a lower die base 122, a lower die slider 124, and a lower die fixing plate 125. Above the machine platform frame body 5, there is a lower die base 122 whose bottom is connected to the sliding sleeve 121 on the same side. The top of the lower die base 122 is slidably connected with a lower die fixing plate 125. At the top of the lower die fixing plate 125, there is a bracket 10. Inside the bracket 10, there is an upper die 12. At the top of the bracket 10, there is an oil cylinder 11 between the telescopic shaft and the upper die 12. At the bottom of the upper die 12, there is a punch pin 14. At the top of the lower die fixing plate 125, there are a lower die 15 and a pad convex plate 110. An elastic mechanism is provided between the lower die base 122 and the lower die fixing plate 125. On the elastic mechanism, there is a blanking rod 16 penetrating to one side of the lower die 15. On the elastic mechanism, there is a lower die slider 124. At the bottom of the upper die 12, there is an upper die insert 116 corresponding to the lower die slider 124. At one end of the upper die insert 116 away from the elastic mechanism and at one end of the upper die insert 116, there are inclined surfaces.

[0031] In this embodiment, the two hydraulic punching units 1 have the same structural form and working principle, but their working directions are opposite. One of the hydraulic punching units 1 is a fixed unit and generally does not move. The other hydraulic punching unit 1 is a movable unit. The distance between the two hydraulic punching units 1 can be adjusted by the positioning mechanism according to the size of the pedal workpiece, and the two ends of the aluminum alloy pedal can be processed simultaneously. Therefore, the processing efficiency is improved. After the aluminum alloy pedal is placed at the designated station between the hydraulic punching units 1, during the process of the oil cylinder 11 pushing the upper die 12 downward, the upper die insert 116 fixed on the upper die 12 cooperates with the lower die slider 124 fixed on the lower die base 122 during the downward movement, that is, the inclined surfaces of the upper die insert 116 and the lower die slider 124 interact with each other, thereby pushing the upper die 12 and the lower die 15 to feed simultaneously towards the pedal material direction to complete the tool alignment action, and the ejector rod 16 retracts into the lower die 15. After the stacking action is completed, the punch 14 continues to move downward to complete the punching, so as to ensure that the punched hole positions will not deviate, improving the accuracy. Moreover, during the tool alignment feeding, the elastic mechanism is compressed and energy is stored. After the punching is completed, the upper die 12 and the upper die insert 116 move upward, and the elastic force of the elastic mechanism drives the lower die 15 and the lower die fixing plate 125 to return to their original positions, and the ejector rod 16 protrudes and ejects the aluminum alloy pedal material, further improving the working efficiency. The operator only needs to perform loading and unloading, and the tool alignment, punching, material ejection, and die size adjustment are all automatically completed by the equipment, and the punched hole positions will not deviate due to human factors, and the quality is stable.

[0032] Preferably, as another embodiment of the present invention, a sliding seat 112 is provided at the bottom of the lower die fixing plate 125. A ball bearing 123 that abuts against the surface of the lower die base 122 is provided on the inner side wall of the sliding seat 112. On both sides of the sliding seat 112, a first sliding seat limiting plate 113 and a second sliding seat limiting plate 114 whose bottoms are connected to the lower die base 122 are respectively provided. At the top of the first sliding seat limiting plate 113, a third sliding seat limiting plate 115 whose one end extends directly above the sliding seat 112 is provided.

[0033] In this embodiment, the sliding seat 112 connected to the lower die fixing plate 125 is limited on the lower die base 122 by the first sliding seat limiting plate 113, the second sliding seat limiting plate 114, and the third sliding seat limiting plate 115. Therefore, it can only slide along the horizontal direction. Among them, the ball bearing 123 can minimize the friction coefficient to complete a smooth sliding action. At the same time, the first sliding seat limiting plate 113, the second sliding seat limiting plate 114, and the third sliding seat limiting plate 115 on both sides of the sliding seat 112 are responsible for guiding and fixing the sliding seat 112.

[0034] Preferably, as another embodiment of the present invention, the lower die 15 further includes a die insert 19. Die inserts 19 are provided on both the front and rear sides of the lower die 15. A stripper plate 18 is provided on the top of the die insert 19. An internal hexagonal screw is provided on the top of the stripper plate 18, which sequentially penetrates through the stripper plate 18 and the die insert 19 and is threadedly connected to the lower die fixing plate 125. Two die inserts 126 are provided on both sides of the lower die 15 on the top of the lower die fixing plate 125. Small semi-circular grooves and large semi-circular grooves are respectively provided on both sides of the stripper plate 18 and the die insert 19. Large semi-circular protrusions and small semi-circular protrusions are respectively provided on one side of the die insert 126 and both sides of the lower die 15. The large semi-circular protrusions and the small semi-circular protrusions respectively extend into the large semi-circular grooves and the small semi-circular grooves one by one.

[0035] In this embodiment, the large semi-circular protrusions and the small semi-circular protrusions cooperate with the large semi-circular grooves and the small semi-circular grooves respectively to form a limiting effect. Therefore, the large and small semi-circular chucks prevent the stripper plate 18 and the die insert 19 from moving back and forth, and can prevent the worker from installing the template in the wrong direction. The internal hexagonal screw penetrating through the stripper plate 18 and the die insert 19 fixes the stripper plate 18 and the die insert 19 on the lower die fixing plate 125. Therefore, during subsequent use, if the edge of the die insert 19 is worn, only the internal hexagonal screw on the stripper plate 18 needs to be loosened to remove the stripper plate 18, and then the die insert 19 can be removed without disassembling the entire lower die 15.

[0036] Preferably, as another embodiment of the present invention, a guide post hole is provided on the top of the lower die 15, and a guide post 13 extending into the guide post hole is provided on the bottom of the upper die 12.

[0037] In this embodiment, the upper die 12 and the lower die 15 are connected by the guide post 13 to provide a guiding function. When the guide post 13 on the upper die 12 moves downward, it can slide in the guide post hole in the lower die 15, ensuring that the punch 14 will not produce a die scraping phenomenon with the die insert 19 and the pad convex plate 110, that is, ensuring that the upper and lower dies will not be displaced during the relative movement process, and at the same time ensuring that the gap between the punch 14 and the die insert 19 is always uniform and will not scrape the die.

[0038] Preferably, as another embodiment of the present invention, a concave block 117 is provided on the top of the lower die fixing plate 125, and one end of the lower die slider 124 away from the elastic mechanism extends into the concave block 117.

[0039] In this embodiment, when the upper die insert 116 is inserted downward, it will be inserted into the concave block 117. Therefore, the lower die fixing plate 125 and the structures thereon will be pushed to slide through the concave block 117. At the same time, the upper die insert 116 and the concave block 117 are in contact with each other, providing a force application point, with better force and more reasonable structure.

[0040] Preferably, as another embodiment of the present utility model, the position adjusting mechanism includes a servo motor 31, a transmission lead screw 32, an internally threaded block 310 and a bearing block 311. A servo motor 31 is provided at the top of the machine table frame body 5. A transmission lead screw 32 is provided on the output shaft of the servo motor 31. A bearing block 311 is rotatably connected between the other end of the transmission lead screw 32 and the bottom of the left lower die base 122. An internally threaded block 310 whose one end is connected to the bottom of the right lower die base 122 is drivingly connected to the transmission lead screw 32.

[0041] In this embodiment, the servo motor 31 can drive the transmission lead screw 32 to rotate, and the transmission lead screw 32 will transmit power to the internally threaded block 310. During this process, the internally threaded block 310 can drive the right hydraulic punching unit 1 and the sliding sleeve 121 to slide on the linear guide rail 51, so as to adjust the distance between the two hydraulic punching units 1 to adapt to pedal workpieces of different sizes.

[0042] Preferably, as another embodiment of the present utility model, the elastic mechanism includes a bolt 118, a fixing plate 119 and a pushing spring 120. A fixing plate 119 is provided on one side of the top of the lower die base 122. A bolt 118 passing through the fixing plate 119 is provided on the outside of the lower die fixing plate 125. A pushing spring 120 whose one end is connected to its head and the other end is connected to the outside of the fixing plate 119 is sleeved on the bolt 118.

[0043] In this embodiment, when the lower die fixing plate 125 is pushed, it will drive the bolt 118 to slide on the fixing plate 119. During this process, the head of the bolt 118 will squeeze the pushing spring 120, so that the pushing spring 120 is compressed. When the lower die fixing plate 125 is not stressed, the pushing spring 120 recovers its deformation, converts the elastic potential energy into kinetic energy, and pushes the ejector rod 16 to eject the aluminum alloy pedal workpiece, completing the pushing in the horizontal direction.

[0044] Working principle: the servo motor 31 drives the transmission screw 32 to rotate, and the transmission screw 32 will transmit with the internal thread block 310, so that the internal thread block 310 drives the right hydraulic punching unit 1 and the sliding sleeve 121 to slide on the linear guide rail 51, thereby adjusting the distance between the two hydraulic punching units 1 to adapt to pedal workpieces of different sizes. After the aluminum alloy pedal is placed in the designated position between the hydraulic punching units 1, the oil hydraulic cylinder 11 in the hydraulic punching unit 1 pushes the upper die 12 and the upper die insert 116 downward, and the upper die insert 116 cooperates with the lower die slide 124 fixed on the lower die seat 122, that is, the upper die insert 116 and the inclined surface of the lower die slide 124 interact with each other, thereby pushing the upper die 12 and the lower die 15 to feed in the direction of the pedal material at the same time, completing the tool setting action, and the ejector rod 16 retracts into the lower die 1 5, and after the stacking action is completed, the punching needle 14 continues to move downward to complete the punching to ensure that the punched hole position will not deviate, thereby improving the accuracy, and driving the bolt 118 to slide on the fixed plate 119. During this process, the head of the bolt 118 will squeeze the push spring 120, so that the push spring 120 is compressed. After the punching is completed, the upper die 12 and the upper die insert 116 move upward, the lower die fixed plate 125 and the lower die slide block 124 are not subjected to force, and the push spring 120 recovers its deformation, converting the elastic potential energy into kinetic energy to push the ejector rod 16 to eject the aluminum alloy pedal workpiece, completing the horizontal direction of pushing, and further improving the work efficiency. Manual work only involves placing and taking materials, while tool setting, punching, stripping, and adjusting the mold size are all automatically completed by the equipment, and the punched hole position will not deviate due to human factors, and the quality is stable.

[0045] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "certain embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0046] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An aluminum alloy pedal double-head punching machine, characterized in that: It includes a machine platform frame (5). Above the machine platform frame (5), there are two hydraulically punching units (1) symmetrically distributed left and right. On both sides of the top of the machine platform frame (5), there are linear guide rails (51). At the bottom of both hydraulically punching units (1), there are sliding sleeves (121). The left sliding sleeve (121) is fixedly connected to the linear guide rail (51), and the right sliding sleeve (121) is slidably connected to the linear guide rail (51). A position adjustment mechanism is provided between the machine platform frame (5) and the right sliding sleeve (121). The hydraulically punching unit (1) includes a bracket (10), an oil cylinder (11), an upper die (12), a punching needle (14), a lower die (15), a knockout rod (16), a pad convex plate (110), an upper die insert (116), a lower die base (122), a lower die slider (124), and a lower die fixing plate (125). Above the machine platform frame (5), there is a lower die base (122) whose bottom is connected to the sliding sleeve (121) on the same side. The top of the lower die base (122) is slidably connected to a lower die fixing plate (125). On the top of the lower die fixing plate (125), there is a bracket (10). Inside the bracket (10), there is an upper die (12). Between the top of the bracket (10) and the upper die (12), there is an oil cylinder (11) with a telescopic shaft. At the bottom of the upper die (12), there is a punching needle (14). On the top of the lower die fixing plate (125), there are a lower die (15) and a pad convex plate (110). An elastic mechanism is provided between the lower die base (122) and the lower die fixing plate (125). On the elastic mechanism, there is a knockout rod (16) that penetrates to one side of the lower die (15). On the elastic mechanism, there is a lower die slider (124). At the bottom of the upper die (12), there is an upper die insert (116) corresponding to the lower die slider (124). One end of the upper die insert (116) away from the elastic mechanism and one end of the upper die insert (116) are provided with inclined surfaces.

2. The double-headed punching machine for aluminum alloy pedals according to claim 1, characterized in that At the bottom of the lower die fixing plate (125), there is a sliding seat (112). Inside the inner side wall of the sliding seat (112), there is a ball bearing (123) that abuts against the surface of the lower die base (122). On both sides of the sliding seat (112), there are a sliding seat limiting plate one (113) and a sliding seat limiting plate two (114) whose bottoms are connected to the lower die base (122) respectively. On the top of the sliding seat limiting plate one (113), there is a sliding seat limiting plate three (115) whose one end extends above the sliding seat (112).

3. The double-head punching machine for aluminum alloy pedals according to claim 1, characterized in that, The lower die (15) further includes a female die insert (19). The female die inserts (19) are provided on both the front and rear sides of the lower die (15). A stripper plate (18) is provided on the top of the female die insert (19). An internal hexagonal screw is provided on the top of the stripper plate (18), which sequentially penetrates through the stripper plate (18) and the female die insert (19) and is threadedly connected to the lower die fixing plate (125). Two female die blocks (126) are provided on the top of the lower die fixing plate (125) on both sides of the lower die (15). Small semi-circular grooves and large semi-circular grooves are respectively provided on both sides of the stripper plate (18) and the female die insert (19). A large semi-circular protrusion and a small semi-circular protrusion are respectively provided on one side of the female die block (126) and both sides of the lower die (15). The large semi-circular protrusion and the small semi-circular protrusion respectively extend into the large semi-circular groove and the small semi-circular groove one by one.

4. A double-head punching machine for aluminum alloy pedals according to claim 1, characterized in that A guide post hole is provided on the top of the lower die (15), and a guide post (13) extending into the guide post hole is provided on the bottom of the upper die (12).

5. A double-head punching machine for aluminum alloy pedals according to claim 1, characterized in that, A concave block (117) is provided on the top of the lower die fixing plate (125), and one end of the lower die slider (124) away from the elastic mechanism extends into the concave block (117).

6. The double-head punching machine for aluminum alloy pedals according to claim 1, wherein, The position adjustment mechanism includes a servo motor (31), a transmission lead screw (32), an internal thread block (310), and a bearing block (311). The servo motor (31) is provided on the top of the machine table frame body (5). The output shaft of the servo motor (31) is provided with a transmission lead screw (32). A bearing block (311) is rotatably connected between the other end of the transmission lead screw (32) and the bottom of the left lower die base (122). The internal thread block (310) whose one end is connected to the bottom of the right lower die base (122) is drivingly connected to the transmission lead screw (32).

7. An aluminum alloy pedal double-headed punching machine according to claim 1, characterized in that, The elastic mechanism includes a bolt (118), a fixing plate (119), and a pushing spring (120). A fixing plate (119) is provided on one side of the top of the lower die base (122). A bolt (118) penetrating through the fixing plate (119) is provided on the outside of the lower die fixing plate (125). A pushing spring (120) whose one end is connected to its head and the other end is connected to the outside of the fixing plate (119) is sleeved on the bolt (118).

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