Multi-point stamping device for special vehicle box body production

Abstract

The invention discloses a multi-point stamping device for special vehicle box production, and relates to the technical field of stamping, the multi-point stamping device comprises a base, a movable seat and a mounting seat, the movable seat is arranged between the base and the mounting seat, a hydraulic cylinder is arranged on the mounting seat, the working end of the hydraulic cylinder is connected with the mounting seat, and the working end of the hydraulic cylinder is connected with the mounting seat. Compared with an existing multi-point punching device, the multi-point punching device is provided with the detection mechanism, the first mold and the second mold, the first mold and the second mold are detachably provided with the multiple sets of first forming parts and the multiple sets of second forming parts correspondingly, and when the detection mechanism detects that a certain set of first forming parts and second forming parts are abraded, the first forming parts and the second forming parts are not abraded; and a worker can quickly dismount the worn first forming part and the worn second forming part and replace the worn first forming part and the worn second forming part with new first forming parts and new second forming parts, so that on one hand, the working efficiency is improved, and on the other hand, the high cost of integrally replacing the mold is avoided.

Description

Technical Field

[0001] The present invention relates to the field of stamping technology, and specifically to a multi-point stamping device for the production of special vehicle boxes. Background Art

[0002] In the fields of logistics transportation and special vehicles, the vehicle box is usually designed in a wavy shape to enhance the strength and load-bearing capacity of the box while reducing the overall weight. Currently, the production of these special vehicle boxes often requires high-precision stamping processes to ensure that the sizes and shapes of each wave crest and wave trough are consistent, which poses relatively high requirements for the performance and stability of stamping equipment.

[0003] Although traditional multi-point stamping devices can achieve the stamping and forming of vehicle box plates, there are still many deficiencies in practical applications. Firstly, traditional devices lack an efficient detection mechanism and cannot monitor the wear condition of the die in real time, resulting in the failure to replace the die in time after wear, which affects the stamping quality. Secondly, the process of replacing and maintaining the die is cumbersome. Usually, the entire die needs to be replaced, which not only consumes time and effort but also increases the production cost. In addition, when a power outage or equipment failure occurs, traditional stamping devices are difficult to quickly remove the vehicle box plate from the die, easily causing damage to the vehicle box plate or further damage to the equipment, affecting production efficiency and safety. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-point stamping device for the production of special vehicle boxes to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: A multi-point stamping device for the production of a special vehicle box body. The multi-point stamping device includes a base, a movable seat and a mounting seat. The movable seat is arranged between the base and the mounting seat. A hydraulic cylinder is arranged on the mounting seat. The working end of the hydraulic cylinder is connected to the mounting seat. The lifting of the mounting seat is controlled by the hydraulic cylinder. One end of the base close to the movable seat is provided with a first mold, and a number of groups of first forming members are arranged on the first mold. One end of the movable seat close to the base is provided with a second mold, and a number of groups of second forming members are arranged on the second mold. When stamping the vehicle box board, the staff can first place the board above a number of groups of first forming members, and then start the hydraulic cylinder. The hydraulic cylinder drives the movable seat and the second mold to move downwards. The vehicle box board is stamped into a wavy shape through the cooperation of a number of groups of second forming members and a number of groups of first forming members, which facilitates the subsequent assembly of the special vehicle box body. Compared with the current multi-point stamping device, a linear motor is arranged on the side end of the base of the present invention, and a detection mechanism is arranged on the linear motor. After the stamping work is completed, the staff can control the detection mechanism to move between the first mold and the second mold through the linear motor, and detect a number of groups of first forming members and a number of groups of second forming members through the detection mechanism, so as to facilitate the staff to timely discover whether the surfaces of a number of groups of first forming members and a number of groups of second forming members are worn, and avoid affecting the stamping quality of the subsequent vehicle box board.

[0006] Further, there are two groups of linear motors, and the two groups of linear motors are oppositely arranged at both ends of the base. The detection mechanism includes a defect detection element and a support column. There are two groups of support columns, and the two groups of support columns are respectively arranged at the working ends of the two groups of linear motors. A rotating bracket is arranged between the two groups of support columns, and the defect detection element is arranged on the rotating bracket.

[0007] Further, a rotating motor is arranged on the outer side of the lower end of each group of support columns, and a sprocket transmission element is arranged inside each group of support columns. The rotating motor is connected to the active end of the sprocket transmission element, and the rotating bracket is connected to the driven end of the sprocket transmission element through a rotating shaft.

[0008] When the detection mechanism in the present invention is not in operation, it is located at the side end of the base, so as to avoid the detection mechanism hindering the lifting movement of the movable seat during the stamping process. After the stamping is completed, the movable seat and the second mold are reset by the hydraulic cylinder. Then, the staff can start the linear motor, and through the linear motor, the detection mechanism moves between the first mold and the second mold. The surface of several groups of first formed parts is detected by the defect detection element (the function realized by the defect detection element belongs to the conventional technical means in the field, and the specific structure will not be described). After detecting several groups of first formed parts, the staff can start the rotary motor, and through the rotary motor, the rotary bracket drives the defect detection element to rotate 180 degrees until the working end of the defect detection element is aligned with the second mold. Finally, through the linear motor, the detection mechanism moves between the first mold and the second mold again, and the surface of several groups of second formed parts is detected by the defect detection element. Through the above technical solution, the staff can quickly find out whether the surfaces of several groups of first formed parts and several groups of second formed parts are worn, so as to avoid affecting the stamping quality of the subsequent carriage plates.

[0009] Further, several groups of first installation grooves are provided on the first mold, and a group of first positioning components are provided below each group of first installation grooves. Each group of first formed parts is detachably installed in the first installation groove through a group of first positioning components. Several groups of second installation grooves are provided on the second mold, and a group of second positioning components are provided above each group of second installation grooves. Each group of second formed parts is detachably installed in the second installation groove through a group of second positioning components.

[0010] Further, the first positioning component includes a first stopper and a first electromagnet. The first electromagnet is arranged at the middle position of the first installation groove, and the first stopper is arranged at the side end of the first electromagnet. A first positioning block is arranged at the middle position below the first formed part, and the first positioning block is made of ferromagnetic material.

[0011] Further, two groups of first positioning holes are also provided below the first formed part, and the two groups of first positioning holes are respectively located on both sides of the first positioning block. The first positioning component further includes a first transmission groove, a first movable block, a first receiving groove and a first spring rod. The first transmission groove is arranged below the first electromagnet and filled with hydraulic oil inside. The first movable block is arranged inside the first transmission groove, and the first movable block has magnetism. Two groups of first receiving grooves are provided, and the two groups of first receiving grooves are respectively arranged on both sides of the first transmission groove. A group of first spring rods are arranged in each group of first receiving grooves. The first transmission groove is communicated with the two groups of first receiving grooves, and each group of first spring rods is matched with a group of first positioning holes.

[0012] Further, the second positioning component includes a second stopper and a second electromagnet. The second electromagnet is disposed at the middle position of the second installation groove. The second stopper is disposed at the side end of the second electromagnet. A second positioning block is disposed at the middle position below the second forming member. The second positioning block is made of ferromagnetic material.

[0013] Further, two groups of second positioning holes are further disposed above the second forming member. The two groups of second positioning holes are respectively located on both sides of the second positioning block. The second positioning component further includes a second transmission groove, a second movable block, a second receiving groove, and a second spring rod. The second transmission groove is disposed above the second electromagnet and filled with hydraulic oil inside. The second movable block is disposed inside the second transmission groove. The second movable block has magnetism. There are two groups of second receiving grooves. The two groups of second receiving grooves are respectively disposed on both sides of the second transmission groove. One group of second spring rods is disposed in each group of second receiving grooves. The second transmission groove is communicated with the two groups of second receiving grooves. Each group of second spring rods is matched with one group of second positioning holes.

[0014] During the normal working process of the present invention, several groups of first electromagnets and several groups of second electromagnets are all in the on state. When it is detected that a certain group of first forming members is worn, the staff can turn off the first electromagnet below the group of first forming members. At this time, the first spring rod will automatically contract into the first receiving groove. Then, after the staff removes the worn first forming member of this group from the first installation groove, a new first forming member can be placed into the first installation groove again. The first stopper and the first positioning block are used for positioning purposes to ensure that the first positioning block is aligned with the first electromagnet and the first spring rod is aligned with the first positioning hole. Finally, the staff can turn on the first electromagnet below the new first forming member. A magnetic field that attracts the first positioning block but repels the first movable block is generated by the first electromagnet. The first positioning block is magnetically attracted by the first electromagnet, and at the same time, the first movable block moves downward. The hydraulic oil filled in the first transmission groove is squeezed into the first receiving groove by the first movable block. Under the action of the hydraulic pressure, the first spring rod will extend into the first positioning hole. The new first forming member is secondarily fixed by the first spring rod and the first positioning hole to ensure the stability of the subsequent stamping process.

[0015] Similarly, when it is detected that a certain group of second forming parts is worn, the staff can turn off the second electromagnet above the group of second forming parts. At this time, the second spring rod will automatically retract into the second receiving groove. Then, after the staff removes the worn second forming parts of this group from the second installation groove, they can re-insert new second forming parts into the second installation groove. The second stop block and the second positioning block are used for positioning purposes to ensure that the second positioning block is aligned with the second electromagnet and the second spring rod is aligned with the second positioning hole. Finally, the staff turns on the second electromagnet under the new second forming part. A magnetic field is generated by the second electromagnet that attracts the second positioning block but repels the second movable block. The second positioning block is magnetically attracted by the second electromagnet, and at the same time, the second movable block moves downward. The hydraulic oil filled in the second transmission groove is squeezed into the second receiving groove by the second movable block. Under the action of the hydraulic pressure, the second spring rod extends into the second positioning hole, and the new second forming part is secondarily fixed by the second spring rod and the second positioning hole. Compared with the current multi-point stamping device, on the one hand, the present invention can quickly and fixedly replace the worn first forming parts and second forming parts as needed, and on the other hand, it can reduce the cost of overall replacement of stamping parts.

[0016] Further, a liquid storage tank and a hydraulic tank are provided inside the movable seat. The working end of the hydraulic cylinder is located in the hydraulic tank. A nut is provided at the side end of the movable seat. The center line of the nut is aligned with the center line of the liquid storage tank. One end of the liquid storage tank away from the nut is connected to the hydraulic tank through a first liquid guiding channel. A sealing disk is provided in the liquid storage tank. Hydraulic oil is filled in the hydraulic tank. An adjusting rod is provided at one end of the sealing disk close to the nut. The adjusting rod is threadedly connected to the nut.

[0017] Further, a set of telescopic grooves are respectively provided at both ends inside the movable seat. A set of ejector rods are provided in each set of telescopic grooves. A set of compression springs are wound around the outside of each set of ejector rods. One end of the liquid storage tank close to the nut is filled with hydraulic oil and is connected to the tops of the two sets of telescopic grooves through a second liquid guiding channel. The hydraulic oil in the liquid storage tank is not fully filled.

[0018] During the normal operation of the present invention, the hydraulic tank is filled with hydraulic oil, and at the same time, the sealing disc blocks the first liquid guide channel. Since the liquid is incompressible, the hydraulic cylinder can directly drive the movable seat to move up and down. If, during stamping, after the first die and the second die come into contact, power failure or equipment failure occurs, the staff can rotate the adjusting rod to make the sealing disc away from the first liquid guide channel. At this time, part of the hydraulic oil filled in the hydraulic tank will flow into the liquid storage tank to facilitate the subsequent movement of the movable seat, and the hydraulic oil filled in the liquid storage tank will be squeezed by the sealing disc into the two telescopic grooves. Under the action of the hydraulic pressure, the two ejector rods will extend from the two telescopic grooves, and the movable seat will be lifted by the two ejector rods to separate the first die and the second die. Through the above technical solution, the staff can take out the carriage plate from between the first die and the second die before the stamping device is repaired. On the one hand, it is convenient for subsequent maintenance, and on the other hand, it can effectively avoid damage to the carriage plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Compared with the current multi-point stamping device, the present invention is provided with a detection mechanism, a first die and a second die. A number of first forming members and a number of second forming members are respectively equipped on the first die and the second die. Through the number of first forming members and the number of second forming members, multi-point stamping of the carriage plate can be carried out, significantly improving the stamping efficiency. In addition, the first forming member and the second forming member are respectively detachably installed on the first die and the second die through the first positioning component and the second positioning component. When the detection mechanism detects that a certain group of the first forming member and the second forming member are worn, the staff can quickly disassemble and replace the worn first forming member and the second forming member with new ones. On the one hand, the work efficiency is improved, and on the other hand, the high cost of replacing the whole die is avoided;

[0021] 2. In addition, both the first positioning component and the second positioning component in the present invention have automatic positioning and automatic locking functions. When the staff puts the new first forming member and the second forming member on the first die and the second die, on the one hand, the first positioning component and the second positioning component can ensure that the new first forming member and the second forming member quickly move to the correct position, and on the other hand, the first positioning component and the second positioning component can form secondary fixation on the new first forming member and the second forming member. This double locking mechanism ensures the stability of the forming member during the stamping process, avoids loosening caused by vibration or pressure, and improves the stamping quality and the reliability of the equipment operation;

[0022] 3. Finally, the present invention also provides a liquid storage tank and a hydraulic tank inside the movable seat. During the stamping process, when the first mold and the second mold come into contact and there is a power failure or equipment failure, etc., the staff can lift the movable seat by rotating the adjusting rod, so as to take out the carriage board or the formed carriage body from between the molds. This design not only facilitates subsequent maintenance, but also effectively avoids damage to the carriage board in case of emergency, improving the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 is a schematic diagram of the position of the detection mechanism of the present invention;

[0025] Figure 3 is a schematic diagram of the structure of the detection mechanism of the present invention;

[0026] Figure 4 is a schematic diagram of the structure of the first positioning component of the present invention;

[0027] Figure 5 of the present invention Figure 4 schematic diagram of the structure of part A;

[0028] Figure 6 is a schematic diagram of the position of the second mold of the present invention;

[0029] Figure 7 is a schematic diagram of the structure of the second positioning component of the present invention;

[0030] Figure 8 of the present invention Figure 7 schematic diagram of the structure of part B;

[0031] Figure 9 is a schematic diagram of the structure of the inside of the movable seat of the present invention from the first perspective;

[0032] Figure 10 is a schematic diagram of the structure of the inside of the movable seat of the present invention from the second perspective.

[0033] In the figure: 1. Base; 11. Linear motor; 12. Detection mechanism; 121. Defect detection element; 122. Rotating bracket; 123. Rotating motor; 124. Support column; 2. First mold; 21. First installation groove; 211. First stop block; 212. First electromagnet; 213. First movable block; 214. First storage groove; 215. First spring rod; 22. First forming part; 221. First positioning block; 3. Movable seat; 31. Liquid storage tank; 32. Sealing disc; 33. First liquid guide channel; 34. Thrust rod; 35. Hydraulic tank; 36. Second liquid guide channel; 37. Adjusting rod; 38. Nut; 4. Mounting seat; 5. Hydraulic cylinder; 6. Second mold; 61. Second installation groove; 611. Second stop block; 612. Second electromagnet; 613. Second movable block; 614. Second storage groove; 615. Second spring rod; 62. Second forming part; 621. Second positioning block. Specific implementation manner

[0034] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment: As Figures 1-10 shown, the present invention provides a technical solution, a multi-point stamping device for the production of special vehicle boxes. The multi-point stamping device includes a base 1, a movable seat 3 and a mounting seat 4. The movable seat 3 is arranged between the base 1 and the mounting seat 4. A hydraulic cylinder 5 is arranged on the mounting seat 4, and the working end of the hydraulic cylinder 5 is connected to the mounting seat 4. The lifting of the mounting seat 4 is controlled by the hydraulic cylinder 5. One end of the base 1 close to the movable seat 3 is provided with a first mold 2, and a number of groups of first forming parts 22 are arranged on the first mold 2. One end of the movable seat 3 close to the base 1 is provided with a second mold 6, and a number of groups of second forming parts 62 are arranged on the second mold 6. When stamping the vehicle box board, the staff can first place the vehicle box board above a number of groups of first forming parts 22, and then start the hydraulic cylinder 5. The hydraulic cylinder 5 drives the movable seat 3 and the second mold 6 to move downward, and the vehicle box board is stamped into a wavy shape through the cooperation of a number of groups of second forming parts 62 and a number of groups of first forming parts 22, thereby facilitating the subsequent assembly of the special vehicle box. Compared with the current multi-point stamping device, the present invention is provided with a linear motor 11 at the side end of the base 1, and a detection mechanism 12 is arranged on the linear motor 11. After the stamping work is completed (that is, the first mold 2 and the second mold 6 are reset), the staff can control the detection mechanism 12 to move between the first mold 2 and the second mold 6 through the linear motor 11, and detect a number of groups of first forming parts 22 and a number of groups of second forming parts 62 through the detection mechanism 12, so as to facilitate the staff to timely discover whether there is wear on the surfaces of a number of groups of first forming parts 22 and a number of groups of second forming parts 62, and avoid affecting the stamping quality of the subsequent vehicle box board.

[0036] As Figures 2-3 shown, there are two sets of linear motors 11. The two sets of linear motors 11 are arranged oppositely at both ends of the base 1. The detection mechanism 12 includes a defect detection element 121 and a support column 124. There are two sets of support columns 124. The two sets of support columns 124 are respectively arranged at the working ends of the two sets of linear motors 11. A rotating bracket 122 is arranged between the two sets of support columns 124. The defect detection element 121 is arranged on the rotating bracket 122.

[0037] As Figures 2-3 shown, a set of rotating motors 123 are arranged on the outer sides of the lower ends of each set of support columns 124. A set of sprocket transmission elements are arranged inside each set of support columns 124. The rotating motor 123 is connected to the active end of the sprocket transmission element. The rotating bracket 122 is connected to the driven end of the sprocket transmission element through a rotating shaft.

[0038] When the detection mechanism 12 in the present invention is not working, the detection mechanism 12 is located at the side end of the base 1 (as Figure 2 shown), so as to avoid the detection mechanism 12 hindering the lifting movement of the movable seat 3 during the stamping process. After the stamping is completed, the hydraulic cylinder 5 is used to drive the movable seat 3 and the second mold 6 to reset. Then, the staff can turn on the linear motor 11. Through the linear motor 11, the detection mechanism 12 is moved between the first mold 2 and the second mold 6. The surface of several groups of first formed parts 22 is detected by the defect detection element 121 (the function realized by the defect detection element 121 belongs to the conventional technical means in the art, and the specific structure is not described). After detecting several groups of first formed parts 22, the staff can turn on the rotating motor 123. Through the rotating motor 123, the rotating bracket 122 is driven to drive the defect detection element 121 to rotate 180 degrees until the working end of the defect detection element 121 is aligned with the second mold 6. Finally, through the linear motor 11, the detection mechanism 12 is moved between the first mold 2 and the second mold 6 again. The surface of several groups of second formed parts 62 is detected by the defect detection element 121. Through the above technical solution, the staff can quickly find out whether the surfaces of several groups of first formed parts 22 and several groups of second formed parts 62 are worn, so as to avoid affecting the stamping quality of the subsequent carriage plates.

[0039] As Figures 1-8 shown, several groups of first installation grooves 21 are arranged on the first mold 2. A set of first positioning components are arranged below each group of first installation grooves 21. Each group of first formed parts 22 is detachably installed in the first installation groove 21 through a set of first positioning components. Several groups of second installation grooves 61 are arranged on the second mold 6. A set of second positioning components are arranged above each group of second installation grooves 61. Each group of second formed parts 62 is detachably installed in the second installation groove 61 through a set of second positioning components.

[0040] As Figures 4-5 shown, the first positioning component includes a first stopper 211 and a first electromagnet 212. The first electromagnet 212 is disposed at the middle position of the first mounting groove 21. The first stopper 211 is disposed at the side end of the first electromagnet 212. A first positioning block 221 is disposed at the middle position below the first forming member 22. The first positioning block 221 is made of ferromagnetic material.

[0041] As Figures 6-8 shown, two sets of first positioning holes are further disposed below the first forming member 22. The two sets of first positioning holes are respectively located on both sides of the first positioning block 221. The first positioning component further includes a first transmission groove, a first movable block 213, a first receiving groove 214, and a first spring rod 215. The first transmission groove is disposed below the first electromagnet 212 and filled with hydraulic oil inside. The first movable block 213 is disposed inside the first transmission groove. The first movable block 213 has magnetism. Two sets of first receiving grooves 214 are provided. The two sets of first receiving grooves 214 are respectively disposed on both sides of the first transmission groove. One set of first spring rods 215 is disposed in each set of first receiving grooves 214. The first transmission groove communicates with the two sets of first receiving grooves 214. Each set of first spring rods 215 cooperates with one set of first positioning holes.

[0042] As Figures 6-8 shown, the second positioning component includes a second stopper 611 and a second electromagnet 612. The second electromagnet 612 is disposed at the middle position of the second mounting groove 61. The second stopper 611 is disposed at the side end of the second electromagnet 612. A second positioning block 621 is disposed at the middle position below the second forming member 62. The second positioning block 621 is made of ferromagnetic material.

[0043] As Figures 6-8 shown, two sets of second positioning holes are further disposed above the second forming member 62. The two sets of second positioning holes are respectively located on both sides of the second positioning block 621. The second positioning component further includes a second transmission groove, a second movable block 613, a second receiving groove 614, and a second spring rod 615. The second transmission groove is disposed above the second electromagnet 612 and filled with hydraulic oil inside. The second movable block 613 is disposed inside the second transmission groove. The second movable block 613 has magnetism. Two sets of second receiving grooves 614 are provided. The two sets of second receiving grooves 614 are respectively disposed on both sides of the second transmission groove. One set of second spring rods 615 is disposed in each set of second receiving grooves 614. The second transmission groove communicates with the two sets of second receiving grooves 614. Each set of second spring rods 615 cooperates with one set of second positioning holes.

[0044] During the normal operation of the present invention, several groups of first electromagnets 212 and several groups of second electromagnets 612 are all in the on state. When it is detected that a certain group of first forming parts 22 is worn, the staff can turn off the first electromagnet 212 below the corresponding group of first forming parts 22. At this time, the first spring rod 215 will automatically contract into the first receiving groove 214. Then, after the staff removes the worn first forming part 22 of this group from the first installation groove 21, a new first forming part 22 can be reinstalled into the first installation groove 21. The first stopper 211 and the first positioning block 221 are used for positioning purposes to ensure that the first positioning block 221 is aligned with the first electromagnet 212, and the first spring rod 215 is aligned with the first positioning hole. Finally, the staff can turn on the first electromagnet 212 below the new first forming part 22. The first electromagnet 212 generates a magnetic field that attracts the first positioning block 221 but repels the first movable block 213. The first electromagnet 212 magnetically attracts the first positioning block 221, and at the same time, the first movable block 213 moves downward, squeezing the hydraulic oil filled in the first transmission groove into the first receiving groove 214. Under the action of the hydraulic pressure, the first spring rod 215 will extend into the first positioning hole, and the new first forming part 22 is secondarily fixed by the first spring rod 215 and the first positioning hole to ensure the stability of the subsequent stamping process;

[0045] Similarly, when it is detected that a certain group of second forming parts 62 is worn, the staff can turn off the second electromagnet 612 above the corresponding group of second forming parts 62. At this time, the second spring rod 615 will automatically contract into the second receiving groove 614. Then, after the staff removes the worn second forming part 62 of this group from the second installation groove 61, a new second forming part 62 can be reinstalled into the second installation groove 61. The second stopper 611 and the second positioning block 621 are used for positioning purposes to ensure that the second positioning block 621 is aligned with the second electromagnet 612, and the second spring rod 615 is aligned with the second positioning hole. Finally, the staff turns on the second electromagnet 612 below the new second forming part 62. The second electromagnet 612 generates a magnetic field that attracts the second positioning block 621 but repels the second movable block 613. The second electromagnet 612 magnetically attracts the second positioning block 621, and at the same time, the second movable block 613 moves downward, squeezing the hydraulic oil filled in the second transmission groove into the second receiving groove 614. Under the action of the hydraulic pressure, the second spring rod 615 will extend into the second positioning hole, and the new second forming part 62 is secondarily fixed by the second spring rod 615 and the second positioning hole. Compared with the current multi-point stamping device, on the one hand, the present invention can quickly and fixed-point replace the worn first forming parts 22 and second forming parts 62 as needed, and on the other hand, it can reduce the overall cost of replacing stamping components.

[0046] Such as Figures 9-10As shown in the figure, a liquid storage tank 31 and a hydraulic tank 35 are arranged inside the movable seat 3. The working end of the hydraulic cylinder 5 is located inside the hydraulic tank 35. A nut 38 is arranged at the side end of the movable seat 3. The center line of the nut 38 is aligned with the center line of the liquid storage tank 31. One end of the liquid storage tank 31 away from the nut 38 is connected to the hydraulic tank 35 through a first liquid guide channel 33. A sealing disc 32 is arranged inside the liquid storage tank 31. The hydraulic tank 35 is filled with hydraulic oil. An adjusting rod 37 is arranged at one end of the sealing disc 32 close to the nut 38. The adjusting rod 37 is threadedly connected to the nut 38.

[0047] As Figures 9-10 shown in the figure, a set of telescopic grooves are respectively arranged at both ends inside the movable seat 3. A set of ejector rods 34 are arranged inside each set of telescopic grooves. A set of compression springs are wound around the outside of each set of ejector rods 34. One end of the liquid storage tank 31 close to the nut 38 is filled with hydraulic oil and is connected to the tops of the two sets of telescopic grooves through a second liquid guide channel 36. The hydraulic oil inside the liquid storage tank 31 is in a non-full state.

[0048] During the normal working process of the present invention, the hydraulic tank 35 is filled with hydraulic oil. At the same time, the sealing disc 32 blocks the first liquid guide channel 33. Due to the incompressibility of the liquid, the hydraulic cylinder 5 can directly drive the movable seat 3 to move up and down. If during stamping, after the first die 2 and the second die 6 come into contact, power failure or equipment failure occurs, etc., the staff can rotate the adjusting rod 37 to make the sealing disc 32 away from the first liquid guide channel 33. At this time, part of the hydraulic oil filled in the hydraulic tank 35 will flow into the liquid storage tank 31 to facilitate the subsequent movement of the movable seat 3. And the hydraulic oil filled in the liquid storage tank 31 will be squeezed by the sealing disc 32 into the two sets of telescopic grooves. Under the action of the hydraulic pressure, the two sets of ejector rods 34 will extend out of the two sets of telescopic grooves, and the movable seat 3 will be jacked up by the two sets of ejector rods 34 to separate the first die 2 and the second die 6. Through the above technical solution, the staff can take out the carriage plate from between the first die 2 and the second die 6 before repairing the stamping device. On the one hand, it is convenient for subsequent maintenance, and on the other hand, it can effectively avoid damage to the carriage plate.

[0049] Working principle of the present invention: When stamping the carriage board, the staff can first place the carriage board above several groups of first forming members 22, and then start the hydraulic cylinder 5. The hydraulic cylinder 5 drives the movable seat 3 and the second mold 6 to move downward. The carriage board is stamped into a wavy shape through the cooperation of several groups of second forming members 62 and several groups of first forming members 22. After the stamping work is completed, the linear motor 11 controls the detection mechanism 12 to move between the first mold 2 and the second mold 6, and the detection mechanism 12 detects several groups of first forming members 22 and several groups of second forming members 62. When it is detected that a certain group of first forming members 22 or second forming members 62 is worn, the staff can quickly replace the worn first forming member 22 or second forming member 62 as needed. If during stamping, when the first mold 2 and the second mold 6 come into contact and there are phenomena such as power failure or equipment failure, the staff can rotate the adjusting rod 37 to make the hydraulic oil filled in the hydraulic groove 35 flow into the liquid storage tank 31. The hydraulic oil filled in the liquid storage tank 31 is squeezed into the two telescopic grooves. Under the action of the hydraulic pressure, the two ejector rods 34 will extend from the two telescopic grooves, and the movable seat 3 is lifted by the two ejector rods 34 to separate the first mold 2 and the second mold 6, so as to facilitate the staff to take out the carriage board from between the first mold 2 and the second mold 6 before repairing the stamping device.

[0050] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-point punching device for special vehicle body production, characterized in that: The multi-point punching device comprises a base (1), a movable seat (3) and a mounting seat (4); the movable seat (3) is arranged between the base (1) and the mounting seat (4); a hydraulic cylinder (5) is arranged on the mounting seat (4); a working end of the hydraulic cylinder (5) is connected to the mounting seat (4); a first mold (2) is arranged at one end of the base (1) close to the movable seat (3); a plurality of groups of first molded parts (22) are arranged on the first mold (2); a second mold (6) is arranged at one end of the movable seat (3) close to the base (1); a plurality of groups of second molded parts (62) are arranged on the second mold (6); a linear motor (11) is also arranged at the side end of the base (1); a detection mechanism (12) is arranged on the linear motor (11); and the plurality of groups of first molded parts (22) and the plurality of groups of second molded parts (62) are detected by the detection mechanism (12).

2. A multi-point punching device for producing a special vehicle body according to claim 1, characterized in that: The first mold (2) is provided with a plurality of groups of first mounting grooves (21), a group of first positioning components is provided below each group of first mounting grooves (21), and each group of first molded parts (22) is detachably mounted in the first mounting grooves (21) via a group of first positioning components. The second mold (6) is provided with a plurality of groups of second mounting grooves (61), a group of second positioning components is provided above each group of second mounting grooves (61), and each group of second molded parts (62) is detachably mounted in the second mounting grooves (61) via a group of second positioning components.

3. The multi-point punching device for producing a special vehicle body according to claim 1 is characterized in that: The linear motor (11) is provided in two groups, and the two groups of linear motors (11) are arranged at two ends of the base (1) in a relative manner. The detection mechanism (12) comprises a defect detection element (121) and a support column (124). The support column (124) is provided in two groups, and the two groups of support columns (124) are respectively arranged at the working ends of the two groups of linear motors (11). A rotating bracket (122) is arranged between the two groups of support columns (124), and the defect detection element (121) is arranged on the rotating bracket (122).

4. A multi-point punching device for producing a special vehicle body according to claim 3, characterized in that: A group of rotating motors (123) are arranged on the outer side of the lower end of each group of supporting columns (124), and a group of sprocket transmission elements are arranged inside each group of supporting columns (124). The rotating motors (123) are connected to the active ends of the sprocket transmission elements, and the rotating brackets (122) are connected to the driven ends of the sprocket transmission elements via rotating shafts.

5. The multi-point punching device for producing a special vehicle body according to claim 2 is characterized in that: The first positioning assembly comprises a first stopper (211) and a first electromagnet (212); the first electromagnet (212) is arranged at a middle position of the first mounting groove (21); the first stopper (211) is arranged at a side end of the first electromagnet (212); and a first positioning block (221) is arranged at a middle position below the first molded part (22).

6. A multi-point punching device for producing a special vehicle body according to claim 5, characterized in that: Two groups of first positioning holes are also arranged below the first molded part (22), and the two groups of first positioning holes are respectively located on both sides of the first positioning block (221). The first positioning assembly also includes a first transmission groove and a first receiving groove (214). The first transmission groove is arranged below the first electromagnet (212) and is filled with hydraulic oil. A first movable block (213) is arranged in the first transmission groove. Two groups of the first receiving grooves (214) are arranged. The two groups of first receiving grooves (214) are respectively arranged on both sides of the first transmission groove. A group of first spring rods (215) is arranged in each group of the first receiving grooves (214). The first transmission groove is connected to the two groups of the first receiving grooves (214).

7. The multi-point punching device for producing a special vehicle body according to claim 2 is characterized in that: The second positioning assembly comprises a second stopper (611) and a second electromagnet (612); the second electromagnet (612) is arranged at a middle position of the second mounting groove (61); the second stopper (611) is arranged at a side end of the second electromagnet (612); and a second positioning block (621) is arranged at a middle position below the second molded part (62).

8. The multi-point punching device for producing a special vehicle body according to claim 7 is characterized in that: Two groups of second positioning holes are also arranged above the second molded part (62), and the two groups of second positioning holes are respectively located on both sides of the second positioning block (621). The second positioning assembly also includes a second transmission groove and a second receiving groove (614). The second transmission groove is arranged above the second electromagnet (612) and is filled with hydraulic oil. A second movable block (613) is arranged in the second transmission groove. Two groups of second receiving grooves (614) are arranged, and the two groups of second receiving grooves (614) are respectively arranged on both sides of the second transmission groove. A group of second spring rods (615) is arranged in each group of second receiving grooves (614). The second transmission groove is connected to the two groups of second receiving grooves (614).

9. The multi-point punching device for producing a special vehicle body according to claim 1 is characterized in that: A liquid storage tank (31) and a hydraulic tank (35) are provided inside the movable seat (3), the working end of the hydraulic cylinder (5) is located in the hydraulic tank (35), a nut (38) is provided at the side end of the movable seat (3), the end of the liquid storage tank (31) away from the nut (38) is connected to the hydraulic tank (35) through a first liquid guide channel (33), a sealing disk (32) is provided in the liquid storage tank (31), the hydraulic tank (35) is filled with hydraulic oil, an adjusting rod (37) is provided at one end of the sealing disk (32) close to the nut (38), and the adjusting rod (37) and the nut (38) are connected by a thread.

10. A multi-point punching device for producing a special vehicle body according to claim 9, characterized in that: A group of telescopic grooves are respectively arranged at both ends of the interior of the movable seat (3), a group of push rods (34) are arranged in each group of telescopic grooves, and a compression spring is wound around the outer side of each group of push rods (34). The end of the liquid storage tank (31) close to the nut (38) is filled with hydraulic oil and is connected to the top ends of the two groups of telescopic grooves through a second liquid guide channel (36). The hydraulic oil in the liquid storage tank (31) is in a non-full state.

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