Punching equipment for aluminum plate machining

Abstract

The utility model discloses stamping equipment for aluminum plate processing, which comprises a rack, the upper end face of the rack is fixedly connected with a support, the lower part of the inner side of the support is slidably connected with a protective cover, the inner walls of the two ends of the protective cover are fixedly connected with sliding seats, the two sides of the protective cover are both provided with visual windows, and the visual windows are fixedly connected with the sliding seats. Buffering mechanisms are vertically arranged at the four corners of the bottom end of the protective cover correspondingly, a workbench is arranged on the upper end face of the rack and located on the inner side of the support, inserting grooves matched with the buffering mechanisms are formed in the four corners of the top end of the workbench correspondingly, and each buffering mechanism comprises a supporting rod fixedly connected with the bottom end of the protective cover. Operation safety and convenience are guaranteed through the protective cover capable of being folded in a sliding mode, a buffer mechanism at the bottom end absorbs and disperses impact force through a supporting rod, a sliding column, a spring and the like so as to prolong the service life of equipment and guarantee precision stability, and the adjustable design of a sliding sleeve and the like can be flexibly adjusted according to different punching working conditions so that the equipment can run more stably and reliably. A foundation is laid for safe and efficient production.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum plate processing technical field, especially a kind of stamping equipment of aluminum plate processing. BACKGROUND

[0002] In the field of aluminum plate processing, stamping process is a commonly used and efficient forming method, with the continuous development of industrial production, the requirement of aluminum plate stamping equipment is also increasing.

[0003] On the one hand, there will be a large vibration and impact force in the stamping process, which not only may cause damage to the structure of the equipment, affect the service life of the equipment, such as long-term impact may cause rack deformation, workbench wear and tear and other problems; On the other hand, stamping operation has certain risk, if lack of effective protective measures, easy to cause harm to the operator, the traditional aluminum plate stamping equipment often has deficiencies in protection and buffer shock, the protective cover structure of part of the equipment is simple, it is difficult to provide good protection while adapting to different stamping conditions, and lack of flexibility and efficiency in buffer impact design, unable to fully guarantee the stable operation of the equipment and the safety of the operator.

[0004] Therefore, we propose a kind of stamping equipment of aluminum plate processing. CONTENT OF UTILITY MODEL

[0005] The main purpose of the utility model is to provide a kind of stamping equipment of aluminum plate processing, in order to prevent the damage to the structure of the equipment (such as rack deformation, workbench wear and tear, etc.) caused by vibration and impact force in the stamping process and the harm to the operator caused by insufficient protection and buffer shock, thereby improving the safety, stability and adaptability of aluminum plate stamping equipment, guaranteeing the reliable operation of the equipment and the personal safety of the operator, improving the overall quality and efficiency of aluminum plate stamping processing, which can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A kind of stamping equipment of aluminum plate processing, including rack, the upper end surface of the rack is fixedly connected with support, the inner side lower part of the support is slidably connected with protective cover, the both ends inner wall of the protective cover is fixedly connected with slide base, the both sides of the protective cover are provided with visual window;

[0008] The bottom end of the protective cover is vertically provided with a buffer mechanism at four corners, the upper end surface of the rack is provided with a workbench on the inner side of the support, the top end of the workbench is provided with a slot matched with the buffer mechanism at four corners, the buffer mechanism comprises a supporting rod fixedly connected with the bottom end of the protective cover, a sliding column is slidably sleeved with the outer lower part of the supporting rod, a spring is connected between the top end of the sliding column and the bottom end of the protective cover, and the spring is sleeved on the outer upper part of the supporting rod, a sliding sleeve is slidably connected with the outer part of the sliding column, a plurality of groups of equidistant screw holes are vertically formed in the outer side of the sliding column, a threaded hole matched with a bolt is formed in the outer upper part of the sliding sleeve, one end of the bolt penetrates through the threaded hole and is threadedly connected with the screw hole, and a rubber pad is arranged at the bottom end of the sliding sleeve.

[0009] By adopting the above technical scheme, the protective cover is slidably connected with the inner side of the support, can be placed down during the operation of the equipment, plays a protective role, the observation window facilitates the observation of the stamping condition in the equipment by the operator from the outside, the protective cover can be slid upward to be collected when the equipment is not in operation, and the workbench and the stamping die and other components are conveniently operated and maintained.

[0010] In the initial state of the equipment, the protective cover is supported above the workbench through the buffer mechanism, the supporting rod is in a certain position in the sliding column, the spring has a certain pre-tightening force, the protective cover is kept stable, and the rubber pad has a certain distance from the workbench at this time. When the stamping equipment is operated for stamping, vibration and impact force are generated, the protective cover moves up and down under the influence of vibration, the supporting rod slides in the sliding column, and the spring is compressed or stretched. When the protective cover is impacted downward, the supporting rod presses the spring downward, the spring absorbs part of the impact force, plays a buffering role, reduces the impact of the protective cover on the workbench, the effective length of the buffer mechanism can be adjusted through the sliding sleeve, the screw hole and the bolt, the bolt is loosened, the sliding sleeve can slide up and down, the position of the sliding column in the sliding sleeve is changed, and thus the initial distance between the rubber pad and the workbench is adjusted. When the appropriate position is adjusted, the bolt is tightened, one end of the bolt is threadedly connected with the screw hole, the position of the sliding sleeve is fixed, different stamping working conditions and support requirements of the protective cover are adapted to. If the impact force is too large, the rubber pad can contact the slot on the workbench, the rubber pad itself can also play a certain buffering role, the impact of the protective cover on the workbench is further reduced, and meanwhile, the cooperation between the rubber pad and the slot can make the position of the protective cover on the workbench more stable.

[0011] Further, a motor is fixedly installed at the top end of the support, a threaded rod is fixedly connected with the output end of the motor, the bottom end of the threaded rod penetrates through the support and is threadedly connected with a screw sleeve, and the bottom end of the screw sleeve penetrates through the protective cover and is fixedly connected with the top end of the sliding seat.

[0012] By adopting the above technical scheme, the motor is used as a power source, when the motor starts, the output end drives the threaded rod to rotate, since the threaded rod and the sleeve are threadedly connected, according to the principle of threaded transmission, when the threaded rod rotates, the sleeve will move up and down along the axial direction of the threaded rod, when the motor rotates forward, the threaded rod also rotates forward, the sleeve will move downward under the action of the thread, since the bottom end of the sleeve penetrates through the protective cover and is fixedly connected with the top middle part of the sliding seat, the sleeve will drive the protective cover to move downward together, on the contrary, when the motor rotates reversely, the sleeve will move upward, thereby driving the protective cover to move upward, so that the lifting operation of the protective cover can be realized by controlling the rotating direction of the motor, when the equipment needs to be punched, the protective cover is lowered to play a protective role, when the equipment needs to be replaced, debugged or maintained, the protective cover is raised to facilitate the operator to operate the workbench and the mold and other components.

[0013] Further, the two ends of the threaded rod are vertically provided with symmetrical limiting rods, the limiting rods are slidably connected with the support, and the bottom ends of the limiting rods penetrate through the protective cover and are fixedly connected with the top end of the sliding seat.

[0014] By adopting the above technical scheme, when the motor drives the threaded rod to rotate, the limiting rods play a guiding and stabilizing role, since the limiting rods are slidably connected with the support and the bottom ends thereof penetrate through the protective cover and are fixedly connected with the top end of the sliding seat, during the upward and downward movement of the protective cover, the limiting rods will move upward and downward along the sliding channel of the support synchronously, assuming that there is no limiting rod and the upward and downward movement of the protective cover is realized only by the threaded connection of the threaded rod and the sleeve, the protective cover may rotate due to the rotating force in the threaded transmission process, resulting in position deviation or shaking, and the existence of the limiting rods can limit the protective cover to move upward and downward linearly, preventing the protective cover from rotating or other unstable conditions, during the downward movement of the protective cover, even if the sleeve is subjected to some lateral force or has a rotating tendency due to the slight unevenness of the threaded connection, the limiting rods can prevent the protective cover from rotating, ensuring that the protective cover stably and vertically descends and accurately covers above the workbench, providing reliable protection for the punching operation, similarly, during the upward movement of the protective cover, the limiting rods can also ensure that the protective cover stably returns to the initial position.

[0015] Further, the top middle part of the sliding seat is fixedly provided with a first hydraulic rod, and the output end of the first hydraulic rod penetrates through the sliding seat and is fixedly provided with an upper die.

[0016] By adopting the technical scheme, when aluminum plate stamping is needed, the first hydraulic rod starts to work as a power driving component, the hydraulic system provides corresponding hydraulic power to the first hydraulic rod, the output end of the first hydraulic rod is caused to stretch and retract, the first hydraulic rod output end passes through the sliding seat and is fixedly installed with the upper die, when the output end of the first hydraulic rod stretches downward, the upper die is caused to move downward synchronously, the upper die gradually approaches the aluminum plate placed on the workbench and the lower die corresponding thereto, the upper die and the lower die apply pressure to the aluminum plate, the aluminum plate is plastically deformed under the action of the upper die and the lower die, and is thus stamped into a required shape; after one stamping operation is completed, the output end of the first hydraulic rod is caused to retract upward by the hydraulic system, at this time, the first hydraulic rod causes the upper die to move upward, so that the upper die returns to an initial lifting position and is away from the workbench and the aluminum plate part that has been stamped, and preparation is made for next stamping operation or subsequent blanking, die adjustment and other operations.

[0017] Further, the upper end face of the workbench is provided with two symmetrical support plates, and the opposite sides of the two support plates are fixedly installed with second hydraulic rods.

[0018] By adopting the technical scheme, the second hydraulic rod can be used as power for clamping the aluminum plate.

[0019] Further, the output end of the second hydraulic rod passes through the support plate and is fixedly connected with clamping plates, and the lower die is arranged between the two clamping plates.

[0020] By adopting the technical scheme, when stamping preparation of the aluminum plate is needed, the hydraulic system drives the second hydraulic rod to work, the output end of the second hydraulic rod passes through the support plate and is fixedly connected with the clamping plates, when the output end of the second hydraulic rod stretches, the clamping plates are caused to move synchronously to the middle, the two clamping plates gradually approach the aluminum plate placed in the middle and above the lower die, the clamping plates tightly clamp the aluminum plate and firmly fix the aluminum plate at a specific position as the second hydraulic rod continuously pushes the clamping plates, so that the aluminum plate does not shift in the subsequent stamping process, the upper die can be accurately matched with the aluminum plate and the lower die during stamping, and thus the size precision and shape precision of the stamped aluminum plate part meet the requirements.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] (1) The utility model relates to a stamping equipment for aluminum plate processing, which is provided with a protective cover slidably connected to the inner lower part of the support, and the visual window on the two sides of the protective cover is convenient for the operator to observe the internal stamping condition in real time when the equipment is running, which can ensure safety without affecting the monitoring of the processing process. When the equipment stops working, the protective cover can be slid upward to be folded, which greatly facilitates the operator to perform operations such as die replacement, equipment debugging, cleaning and maintenance on the workbench and key components such as the stamping die, improves the overall work efficiency, reduces the downtime caused by inconvenient equipment maintenance, optimizes the production process of aluminum plate stamping processing, and the sliding connection mode of the protective cover and the support and the structure design thereof enable the protective cover to be stably positioned at the working position during the operation of the equipment, effectively prevent the interference of external factors on the stamping operation, and avoid safety accidents caused by the accidental touch of the stamping area by the operator, which provides reliable protection for safe production and meets the requirements of modern industrial production for equipment safety and humanized operation.

[0023] (2) The utility model relates to a stamping equipment for aluminum plate processing, which is provided with a protective cover slidably connected to the inner lower part of the support, and the visual window on the two sides of the protective cover is convenient for the operator to observe the internal stamping condition in real time when the equipment is running, which can ensure safety without affecting the monitoring of the processing process. When the equipment stops working, the protective cover can be slid upward to be folded, which greatly facilitates the operator to perform operations such as die replacement, equipment debugging, cleaning and maintenance on the workbench and key components such as the stamping die, improves the overall work efficiency, reduces the downtime caused by inconvenient equipment maintenance, optimizes the production process of aluminum plate stamping processing, and the sliding connection mode of the protective cover and the support and the structure design thereof enable the protective cover to be stably positioned at the working position during the operation of the equipment, effectively prevent the interference of external factors on the stamping operation, and avoid safety accidents caused by the accidental touch of the stamping area by the operator, which provides reliable protection for safe production and meets the requirements of modern industrial production for equipment safety and humanized operation.

[0024] (3) The utility model relates to a stamping equipment for aluminum plate processing, which is provided with a protective cover slidably connected to the inner lower part of the support, and the visual window on the two sides of the protective cover is convenient for the operator to observe the internal stamping condition in real time when the equipment is running, which can ensure safety without affecting the monitoring of the processing process. When the equipment stops working, the protective cover can be slid upward to be folded, which greatly facilitates the operator to perform operations such as die replacement, equipment debugging, cleaning and maintenance on the workbench and key components such as the stamping die, improves the overall work efficiency, reduces the downtime caused by inconvenient equipment maintenance, optimizes the production process of aluminum plate stamping processing, and the sliding connection mode of the protective cover and the support and the structure design thereof enable the protective cover to be stably positioned at the working position during the operation of the equipment, effectively prevent the interference of external factors on the stamping operation, and avoid safety accidents caused by the accidental touch of the stamping area by the operator, which provides reliable protection for safe production and meets the requirements of modern industrial production for equipment safety and humanized operation. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structure schematic view of the utility model discloses a stamping equipment for aluminum plate processing.

[0026] Figure 2 It is an internal structure schematic view of the stamping equipment for aluminum plate processing.

[0027] Figure 3 It is an internal structure schematic view of the stamping equipment for aluminum plate processing. Figure 2 It is an internal structure schematic view of the stamping equipment for aluminum plate processing.

[0028] In the figure: 1, rack; 2, support; 3, protective cover; 4, visual window; 5, sliding seat; 6, support rod; 7, sliding column; 8, sliding sleeve; 9, screw hole; 10, bolt; 11, rubber pad; 12, workbench; 13, slot; 14, motor; 15, threaded rod; 16, screw sleeve; 17, limiting rod; 18, lower die; 19, spring; 20, first hydraulic rod; 21, upper die; 22, support plate; 23, second hydraulic rod; 24, clamping plate. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0030] In order to prevent the damage to the equipment structure (such as rack deformation, workbench wear, etc.) caused by vibration and impact force in the stamping process and the harm to the operators caused by insufficient protection and buffer damping, thereby improving the safety, stability and adaptability of the aluminum plate stamping equipment, protecting the reliable operation of the equipment and the personal safety of the operators, and improving the overall quality and efficiency of the aluminum plate stamping process, as shown in Figure 1 , Figure 2 , Figure 3 A stamping equipment for aluminum plate processing, comprising a rack 1, the upper end surface of the rack 1 is fixedly connected with a support 2, the inner side lower part of the support 2 is slidably connected with a protective cover 3, the both end inner walls of the protective cover 3 are fixedly connected with sliding seats 5, and the both sides of the protective cover 3 are provided with visual windows 4.

[0031] The bottom end of the protective cover 3 is vertically provided with a buffer mechanism at four corners, the upper end surface of the rack 1 is provided with a workbench 12 at the inner side of the support 2, the top end of the workbench 12 is provided with a slot 13 matched with the buffer mechanism at four corners, the buffer mechanism comprises a supporting rod 6 fixedly connected with the bottom end of the protective cover 3, a sliding column 7 is slidably sleeved with the outer lower part of the supporting rod 6, a spring 19 is connected between the top end of the sliding column 7 and the bottom end of the protective cover 3, and the spring 19 is sleeved on the outer upper part of the supporting rod 6, a sliding sleeve 8 is slidably connected with the outer part of the sliding column 7, a plurality of groups of equidistant screw holes 9 are vertically formed on the outer side of the sliding column 7, a threaded through hole matched with a screw 10 is formed on the outer upper part of the sliding sleeve 8, one end of the screw 10 penetrates through the threaded through hole and is threadedly connected with the screw hole 9, and a rubber pad 11 is arranged at the bottom end of the sliding sleeve 8.

[0032] In use, the protective cover 3 is slidably connected with the inner lower part of the support 2, can be placed down when the equipment works, plays a protective role, and the observation window 4 facilitates the operator to observe the stamping condition inside the equipment from outside; when the equipment does not work, the protective cover 3 can be slid upward to be collected, thereby facilitating the operation and maintenance of the workbench 12 and the stamping die and the like.

[0033] In the initial state of the equipment, the protective cover 3 is supported above the workbench 12 by the buffer mechanism, the supporting rod 6 is in a certain position in the sliding column 7, the spring 19 has a certain pre-tightening force, and the protective cover 3 is kept stable; at this time, the rubber pad 11 has a certain distance from the workbench 12; when the stamping equipment is operated, vibration and impact force are generated, the protective cover 3 moves up and down under the influence of vibration, the supporting rod 6 slides in the sliding column 7, and the spring 19 is compressed or stretched; when the protective cover 3 is impacted downward, the supporting rod 6 presses the spring 19 downward, the spring 19 absorbs part of the impact force, plays a buffering role, reduces the impact of the protective cover 3 on the workbench 12, the effective length of the buffer mechanism can be adjusted through the sliding sleeve 8, the screw hole 9 and the screw 10, the screw 10 is loosened, the sliding sleeve 8 can be slid upward and downward, the position of the sliding column 7 in the sliding sleeve 8 is changed, and thus the initial distance between the rubber pad 11 and the workbench 12 is adjusted; after being adjusted to a suitable position, the screw 10 is tightened, one end thereof is threadedly connected with the screw hole 9, the position of the sliding sleeve 8 is fixed, so as to adapt to different stamping working conditions and the supporting requirements of the protective cover 3; if the impact force is too large, the rubber pad 11 can contact the slot 13 on the workbench 12, the rubber pad 11 itself can also play a certain buffering role, further reducing the impact of the protective cover 3 on the workbench 12, and the cooperation of the rubber pad 11 and the slot 13 can make the position of the protective cover 3 on the workbench more stable.

[0034] For example, Figure 1 , Figure 2As shown, the present invention also includes a motor 14 fixedly installed at the top center of the bracket 2, a threaded rod 15 fixedly connected to the output end of the motor 14, the bottom end of the threaded rod 15 passing through the bracket 2 and threadedly connected to a screw sleeve 16, and the bottom end of the screw sleeve 16 passing through the protective cover 3 and fixedly connected to the top center of the slide block 5.

[0035] In use, motor 14 serves as the power source. When motor 14 starts, its output end drives the threaded rod 15 to rotate. Since the threaded rod 15 and the threaded sleeve 16 are threadedly connected, according to the principle of thread transmission, when the threaded rod 15 rotates, the threaded sleeve 16 will move up and down linearly along the axial direction of the threaded rod 15. When motor 14 rotates in the forward direction, the threaded rod 15 also rotates in the forward direction, and the threaded sleeve 16 will move downward under the action of the thread. Since the bottom end of the threaded sleeve 16 passes through the protective cover 3 and is fixedly connected to the top center of the slide block 5, the threaded sleeve 16 will drive the protective cover 3 to move downward together. Conversely, when motor 14 rotates in the reverse direction, the threaded sleeve 16 will move upward, thereby driving the protective cover 3 to move upward. In this way, the lifting and lowering operation of the protective cover 3 can be achieved by controlling the rotation direction of motor 14. When the equipment needs to perform stamping operations, the protective cover 3 is lowered to provide protection; when the equipment needs to perform mold replacement, debugging, or other maintenance operations, the protective cover 3 is raised to facilitate the operation of the worktable 12 and molds and other components by the operator.

[0036] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes symmetrical limiting rods 17 vertically arranged at both ends of the threaded rod 15. The limiting rods 17 are slidably connected to the bracket 2, and the bottom end of the limiting rods 17 passes through the protective cover 3 and is fixedly connected to the top end of the slide block 5.

[0037] In use, when the motor 14 drives the threaded rod 15 to rotate, the sleeve 16 drives the protective cover 3 to move up and down, the limiting rod 17 plays a guiding and stabilizing role, because the limiting rod 17 is slidably connected with the support 2, and the bottom end of the limiting rod 17 penetrates through the protective cover 3 and is fixedly connected with the top end of the sliding seat 5, in the process of moving the protective cover 3 up and down, the limiting rod 17 will move up and down along the sliding channel of the support 2 synchronously, assuming that there is no limiting rod 17, and only the threaded connection of the threaded rod 15 and the sleeve 16 is used to realize the up and down movement of the protective cover 3, the protective cover 3 may rotate due to the rotating force in the threaded transmission process, resulting in position deviation or shaking, and the existence of the limiting rod 17 can limit the protective cover 3 to only move up and down in a straight line, preventing the protective cover 3 from rotating or other unstable conditions, and even if the sleeve 16 is subjected to some lateral force or has a rotating tendency due to slight unevenness of the threaded connection during the lowering process of the protective cover 3, the limiting rod 17 can prevent the protective cover 3 from rotating, ensuring that the protective cover 3 stably and vertically lowers and accurately covers above the workbench 12, providing reliable protection for the stamping operation, and similarly, the limiting rod 17 can also ensure that the protective cover 3 stably returns to the initial position during the lifting process of the protective cover 3.

[0038] As shown in Figure 2 The utility model still includes, the top end middle part of sliding seat 5 is fixedly installed with first hydraulic rod 20, and the output end of first hydraulic rod 20 penetrates through sliding seat 5 and is fixedly installed with upper die 21.

[0039] In use, when aluminum plate stamping is needed, the first hydraulic rod 20 starts to work as a power driving component, and the hydraulic system provides corresponding hydraulic power to the first hydraulic rod 20, so that the output end of the first hydraulic rod 20 produces telescopic action, and since the output end of the first hydraulic rod 20 penetrates through the sliding seat 5 and is fixedly installed with the upper die 21, when the output end of the first hydraulic rod 20 extends downward, the upper die 21 is driven to move downward synchronously, and the upper die 21 gradually approaches the aluminum plate placed on the workbench 12 and the lower die 18 corresponding thereto, and as the upper die 21 continuously presses downward, the upper die 21 and the lower die 18 apply pressure to the aluminum plate, and the aluminum plate is plastically deformed under the action of the upper and lower dies, so as to be stamped into a required shape; after completing a stamping operation, the output end of the first hydraulic rod 20 is controlled to retract upward by the hydraulic system, at this time, the first hydraulic rod 20 drives the upper die 21 to move upward, so that the upper die 21 returns to the initial lifted position and is away from the workbench 12 and the aluminum plate part that has been stamped, thereby preparing for the next stamping operation or subsequent operations such as blanking and die adjustment.

[0040] As shown in Figure 2 The utility model still includes, the upper end surface of workbench 12 is provided with two symmetrical support plates 22, and the opposite sides of the two support plates 22 are fixedly installed with second hydraulic rods 23.

[0041] In use, the second hydraulic rod 23 can be used for the power of the clamping operation of the aluminum plate.

[0042] As shown in the example, Figure 2 As shown in the example,

[0043] In use, when the aluminum plate needs to be prepared for stamping processing, the hydraulic system drives the second hydraulic rod 23 to work. Since the output end of the second hydraulic rod 23 penetrates the support plate 22 and is fixedly connected with the clamping plate 24, when the output end of the second hydraulic rod 23 is extended, it will drive the clamping plate 24 to move synchronously to the middle. The two clamping plates 24 will gradually approach the aluminum plate placed between them and above the lower die 18. As the second hydraulic rod 23 continues to push the clamping plate 24, the clamping plate 24 will tightly clamp the aluminum plate, firmly fixing the aluminum plate at a specific position, so that it will not be displaced in the subsequent stamping process. This can ensure that the upper die 21 accurately matches the aluminum plate and the lower die 18 during stamping, thereby ensuring that the size and shape accuracy of the stamped aluminum plate meet the requirements.

[0044] It should be noted that the utility model is a stamping equipment for aluminum plate processing. Initially, the protective cover 3 is usually in a raised state to facilitate the operator to check, maintain or replace the workbench 12 and the die. The aluminum plate to be stamped is placed on the workbench 12, located between the two support plates 22 and above the lower die 18. The hydraulic system is started to make the second hydraulic rod 23 work, and its output end is extended to drive the clamping plate 24 to move to the middle, tightly clamping the aluminum plate and fixing the position of the aluminum plate to prevent it from being displaced during the stamping process.

[0045] The motor 14 is started to rotate forward, driving the threaded rod 15 to rotate forward, and the screw sleeve 16 moves downward, so that the protective cover 3 stably and vertically descends along the limiting rod 17 until it covers the workbench 12 at an appropriate position above, providing protection for the stamping operation. The operator can observe the internal situation of the equipment through the visual window 4.

[0046] The hydraulic system provides hydraulic power to the first hydraulic rod 20, and the output end of the first hydraulic rod 20 is extended downward, driving the upper die 21 to move downward synchronously and gradually approaching the aluminum plate and the lower die 18. The upper die 21 and the lower die 18 exert pressure on the aluminum plate, which is plastically deformed under the action of the die and is stamped into the required shape. In this process, the vibration and impact force generated by stamping will make the protective cover 3 move up and down, and the buffer mechanism plays a role. The support rod 6 slides in the slide column 7, and the spring 19 is compressed or stretched to absorb part of the impact force. If the impact force is too large, the rubber pad 11 contacts the slot 13 on the workbench 12 to further buffer and stabilize the protective cover 3.

[0047] The hydraulic system controls the output end of the first hydraulic rod 20 to retract upward, drives the upper die 21 to move upward to the initial lifting position, away from the workbench 12 and the punched aluminum plate parts, controls the second hydraulic rod 23 to release the clamping of the aluminum plate parts by the clamping plate 24, and the punched aluminum plate parts are taken off from the workbench 12 by manual or other unloading devices.

[0048] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A punching apparatus for the processing of aluminium sheets, comprising a frame (1), characterised in that, The upper end surface of the rack (1) is fixedly connected with a support (2), the inner lower part of the support (2) is slidably connected with a protective cover (3), the inner walls of the two ends of the protective cover (3) are fixedly connected with sliding seats (5), and visual windows (4) are arranged on the two sides of the protective cover (3). The bottom end of the protective cover (3) is vertically provided with a buffer mechanism at the four corners, the upper end surface of the rack (1) is provided with a workbench (12) on the inner side of the support (2), the top of the workbench (12) is provided with a slot (13) matched with the buffer mechanism at the four corners, the buffer mechanism comprises a supporting rod (6) fixedly connected with the bottom end of the protective cover (3), a sliding column (7) slidably sleeved on the outer lower part of the supporting rod (6), a spring (19) connected between the top of the sliding column (7) and the bottom end of the protective cover (3), and the spring (19) is sleeved on the outer upper part of the supporting rod (6), a sliding sleeve (8) slidably connected with the sliding column (7), a plurality of groups of equidistant screw holes (9) vertically formed on the outer side of the sliding column (7), a threaded through hole (10) formed in the outer upper part of the sliding sleeve (8) and matched with a screw bolt (10), one end of the screw bolt (10) penetrating through the threaded through hole (10) and being threadedly connected with the screw hole (9), and a rubber pad (11) arranged at the bottom end of the sliding sleeve (8).

2. The apparatus according to claim 1, wherein: The top of the support (2) is fixedly provided with a motor (14) at the middle, the output end of the motor (14) is fixedly connected with a threaded rod (15), the bottom end of the threaded rod (15) penetrates through the support (2) and is threadedly connected with a screw sleeve (16), and the bottom end of the screw sleeve (16) penetrates through the protective cover (3) and is fixedly connected with the top of the sliding seat (5).

3. The apparatus according to claim 2, wherein: The threaded rod (15) is vertically provided with a pair of symmetrical limiting rods (17) at the two ends, the limiting rods (17) are slidably connected with the support (2), and the bottom ends of the limiting rods (17) penetrate through the protective cover (3) and are fixedly connected with the top of the sliding seat (5).

4. The apparatus according to claim 1, wherein: The top of the sliding seat (5) is fixedly provided with a first hydraulic rod (20) at the middle, and the output end of the first hydraulic rod (20) penetrates through the sliding seat (5) and is fixedly provided with an upper die (21).

5. The apparatus according to claim 1, wherein: The upper end surface of the workbench (12) is provided with two symmetrical supporting plates (22), and the opposite sides of the two supporting plates (22) are fixedly provided with second hydraulic rods (23).

6. The apparatus according to claim 5, wherein: The output end of the second hydraulic rod (23) penetrates through the supporting plate (22) and is fixedly connected with a clamping plate (24), and a lower die (18) is arranged between the two clamping plates (24).

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