A multi-point stamping device for special vehicle body production

Abstract

The present invention discloses a multi-point stamping device for producing special vehicle bodies, which relates to the field of stamping technology. 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, and the working end of the hydraulic cylinder is connected to the movable seat. Compared with the current multi-point stamping device, the present invention is provided with a detection mechanism, a first mold and a second mold. Several groups of first forming parts and several groups of second forming parts are detachably installed on the first mold and the second mold, respectively. When the detection mechanism detects that a group of first forming parts and second forming parts are worn, the staff can quickly disassemble the worn first forming parts and second forming parts and replace them with new first forming parts and second forming parts. On the one hand, it improves work efficiency, and on the other hand, it avoids the high cost of replacing the mold as a whole.

Description

Technical Field

[0001] The present invention relates to the field of stamping technology, in particular to a multi-point stamping device for producing a special vehicle body. Background Art

[0002] In the fields of logistics, transportation and special vehicles, vehicle bodies are usually designed to be wavy to enhance the strength and load-bearing capacity of the body while reducing the overall weight. Currently, the production of these special vehicle bodies often requires high-precision stamping processes to ensure that the size and shape of each peak and trough are consistent, which places high demands on the performance and stability of the stamping equipment.

[0003] Although traditional multi-point stamping devices can achieve stamping and forming of car body panels, they still have many shortcomings in actual applications. First, traditional devices lack efficient detection mechanisms and cannot monitor the wear of the mold in real time, resulting in the mold not being replaced in time after wear, affecting the stamping quality; secondly, the mold replacement and maintenance process is cumbersome, and usually the entire mold needs to be replaced, which is not only time-consuming and labor-intensive, but also increases production costs; in addition, traditional stamping devices are difficult to quickly remove the car body panels from the mold when encountering power outages or equipment failures, which can easily cause damage to the car body panels 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 punching device for producing a special vehicle body, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-point stamping device for the production of special vehicle bodies, the multi-point stamping device comprising a base, a movable seat and a mounting seat, the movable seat being arranged between the base and the mounting seat, a hydraulic cylinder being arranged on the mounting seat, the working end of the hydraulic cylinder being connected to the movable seat, and the lifting and lowering of the movable seat being controlled by the hydraulic cylinder, a first mold being arranged at one end of the base close to the movable seat, a plurality of groups of first formed parts being arranged on the first mold, a second mold being arranged at one end of the movable seat close to the base, a plurality of groups of second formed parts being arranged on the second mold, when stamping the vehicle body panel, the staff can first place the panel above the plurality of groups of first formed parts, and then start the hydraulic cylinder , the movable seat and the second mold are driven downward by the hydraulic cylinder, and the car box panel is punched into a wavy shape through the cooperation of several groups of second molded parts and several groups of first molded parts, which facilitates the subsequent assembly of a special car box body. Compared with the current multi-point stamping device, the present invention is provided with a linear motor at the side end of the base, and a detection mechanism is provided 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 several groups of first molded parts and several groups of second molded parts through the detection mechanism, so as to facilitate the staff to promptly discover whether there is wear on the surface of several groups of first molded parts and several groups of second molded parts, so as to avoid affecting the stamping quality of subsequent car box panels.

[0006] Furthermore, the linear motors are provided in two groups, and the two groups of linear motors are relatively arranged at the two ends of the base. The detection mechanism includes a defect detection element and a support column. The support columns are provided in two groups, 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 provided between the two groups of support columns, and the defect detection element is arranged on the rotating bracket.

[0007] Furthermore, a group of rotating motors are provided on the outer side of the lower end of each group of support columns, and a group of sprocket transmission elements are provided inside each group of support columns. The rotating motors are connected to the active ends of the sprocket transmission elements, and the rotating brackets are connected to the driven ends of the sprocket transmission elements through rotating shafts.

[0008] When the detection mechanism in the present invention is not working, the detection mechanism is located at the side end of the base, so as to avoid the detection mechanism hindering the lifting and lowering movement of the movable seat during the stamping process. When the stamping is completed, the movable seat and the second mold are driven to reset by the hydraulic cylinder, and then the staff can start the linear motor, and the linear motor is used to move the detection mechanism between the first mold and the second mold, and the surface of several groups of first molded parts is detected by the defect detection element (the function realized by the defect detection element belongs to the conventional technical means in this field, and the specific structure is not described). After the several groups of first molded parts are completed, the staff can start the rotating motor, and the rotating motor drives the rotating bracket to rotate one hundred and eighty degrees with the defect detection element until the working end of the defect detection element is aligned with the second mold, and finally the linear motor is used to move the detection mechanism between the first mold and the second mold again, and the defect detection element is used to detect the surface of several groups of second molded parts. Through the above technical solution, the staff can quickly find out whether there is wear on the surfaces of several groups of first molded parts and several groups of second molded parts, so as to avoid affecting the stamping quality of subsequent car body panels.

[0009] Furthermore, the first mold is provided with several groups of first mounting grooves, and a group of first positioning components is provided below each group of first mounting grooves, and each group of first molded parts is detachably mounted in the first mounting grooves through a group of first positioning components. The second mold is provided with several groups of second mounting grooves, and a group of second positioning components is provided above each group of second mounting grooves, and each group of second molded parts is detachably mounted in the second mounting grooves through a group of second positioning components.

[0010] Furthermore, the first positioning assembly includes a first stop block and a first electromagnet, the first electromagnet is arranged at the middle position of the first mounting groove, the first stop block is arranged at the side end of the first electromagnet, and a first positioning block is arranged at the lower middle position of the first molded part, and the first positioning block is made of ferromagnetic material.

[0011] Furthermore, two groups of first positioning holes are provided under the first molded part, and the two groups of first positioning holes are respectively located on both sides of the first positioning block. The first positioning assembly also includes a first transmission groove, a first movable block, a first receiving groove and a first spring rod. The first transmission groove is provided under the first electromagnet and is filled with hydraulic oil. The first movable block is provided inside the first transmission groove. The first movable block is magnetic. There are two groups of first receiving grooves, and the two groups of first receiving grooves are respectively provided on both sides of the first transmission groove. A group of first spring rods is provided in each group of first receiving grooves. The first transmission groove is connected to the two groups of first receiving grooves, and each group of first spring rods cooperates with a group of first positioning holes.

[0012] Furthermore, the second positioning assembly includes a second stop block and a second electromagnet, the second electromagnet is arranged at the middle position of the second mounting groove, the second stop block is arranged at the side end of the second electromagnet, and a second positioning block is arranged at the lower middle position of the second molded part, and the second positioning block is made of ferromagnetic material.

[0013] Furthermore, two groups of second positioning holes are provided above the second molded part, and the two groups of second positioning holes are respectively located on both sides of the second positioning block. The second positioning assembly also includes a second transmission groove, a second movable block, a second receiving groove and a second spring rod. The second transmission groove is provided above the second electromagnet and is filled with hydraulic oil. The second movable block is provided inside the second transmission groove. The second movable block is magnetic. There are two groups of second receiving grooves, and the two groups of second receiving grooves are respectively provided on both sides of the second transmission groove. A group of second spring rods is provided in each group of second receiving grooves. The second transmission groove is connected to the two groups of second receiving grooves, and each group of second spring rods cooperates with a group of second positioning holes.

[0014] During normal operation of the present invention, several groups of first electromagnets and several groups of second electromagnets are all in the on state. When wear is detected in a certain group of first molded parts, the staff can turn off the first electromagnet under the group of first molded parts. At this time, the first spring rod will automatically retract into the first receiving groove. Then, after the staff removes the group of worn first molded parts from the first installation groove, the staff can put a new first molded part into the first installation groove again. The first stopper and the first positioning block are used for positioning, ensuring 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 under the new first molded part, and the first electromagnet generates a group of magnetic fields that attract the first positioning block but repel the first movable block. The first electromagnet magnetically attracts the first positioning block and at the same time causes the first movable block to move 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 molded part is fixed for a second time by the first spring rod and the first positioning hole to ensure the stability of the subsequent stamping process.

[0015] Similarly, when wear is detected in a group of second molded parts, the staff can turn off the second electromagnet above the group of second molded parts. At this time, the second spring rod will automatically retract into the second receiving groove. Then, after the staff removes the group of worn second molded parts from the second installation groove, they can put a new second molded part into the second installation groove again. The second stopper and the second positioning block are used for positioning, ensuring 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 molded part, and the second electromagnet generates a set of magnetic fields that attract the second positioning block but repel the second movable block. The second electromagnet magnetically attracts the second positioning block and simultaneously moves the second movable block 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 will extend into the second positioning hole. The new second molded part is fixed for the second time by the second spring rod and the second positioning hole. Compared with the current multi-point stamping device, the present invention can, on the one hand, quickly and precisely replace the worn first and second molded parts as needed, and on the other hand, it can reduce the cost of replacing the stamping parts as a whole.

[0016] Furthermore, 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, the end of the liquid storage tank away from the nut is connected to the hydraulic tank through a first liquid guide channel, a sealing disk is provided in the liquid storage tank, the hydraulic tank is filled with hydraulic oil, an adjusting rod is provided at the end of the sealing disk close to the nut, and the adjusting rod and the nut are connected by a thread.

[0017] Furthermore, a group of telescopic grooves are respectively provided at both ends of the interior of the movable seat, a group of push rods are provided in each group of telescopic grooves, and a group of compression springs are wound around the outside of each group of push rods. The end of the liquid storage tank close to the nut is filled with hydraulic oil and is connected to the top ends of the two groups of telescopic grooves through the second liquid guide channel. The hydraulic oil in the liquid storage tank is in a non-full state.

[0018] During normal operation of the present invention, the hydraulic tank is filled with hydraulic oil, and the sealing disk blocks the first liquid guide channel. Since the liquid is incompressible, the hydraulic cylinder can directly drive the movable seat to perform lifting movements. If during stamping, the first mold and the second mold come into contact and encounter a power outage or equipment failure, the staff can rotate the adjusting rod to move the sealing disk 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 into the two sets of telescopic grooves by the sealing disk. Under the action of hydraulic pressure, the two sets of push rods will extend from the two sets of telescopic grooves, and the movable seat will be lifted up by the two sets of push rods to separate the first mold and the second mold. Through the above technical solution, the staff can remove the car box plate from between the first mold and the second mold before repairing the stamping device. On the one hand, it is convenient for subsequent maintenance, and on the other hand, it can effectively prevent the car box plate from being damaged.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Compared with the current multi-point stamping device, the present invention is provided with a detection mechanism, a first mold, and a second mold. The first mold and the second mold are respectively equipped with several groups of first molded parts and several groups of second molded parts. The multiple groups of first molded parts and the multiple groups of second molded parts can perform multi-point stamping on the vehicle box panel, which significantly improves the stamping efficiency. In addition, the first molded parts and the second molded parts are detachably mounted on the first mold and the second mold by first positioning assemblies and second positioning assemblies, respectively. When the detection mechanism detects that a group of the first molded parts and the second molded parts are worn, the staff can quickly remove the worn first molded parts and the second molded parts and replace them with new ones. On the one hand, this improves work efficiency, and on the other hand, it avoids the high cost of replacing the entire mold.

[0021] 2. In addition, the first positioning assembly and the second positioning assembly of the present invention both have automatic positioning and automatic locking functions. When the staff place the new first and second molded parts on the first and second molds, the first and second positioning assemblies can ensure that the new first and second molded parts are quickly moved to the correct position. On the other hand, the first and second positioning assemblies can form a secondary fixation for the new first and second molded parts. This double locking mechanism ensures the stability of the molded parts during the stamping process, avoids loosening due to 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 in the movable seat. During the stamping process, when the first mold and the second mold come into contact and encounter a power outage or equipment failure, the staff can rotate the adjustment rod to lift the movable seat, thereby removing the car box plate or the formed car box body from between the molds. This design not only facilitates subsequent maintenance, but also effectively prevents the car box plate from being damaged in an emergency, thereby improving the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0026] Figure 4 This is a schematic structural diagram of the first positioning assembly of the present invention;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the middle part A;

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

[0029] Figure 7 This is a schematic structural diagram of the second positioning assembly of the present invention;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of the middle part B;

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

[0032] Figure 10 This is a schematic diagram of the internal structure of the movable seat of the present invention from a second viewing angle.

[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 mounting groove; 211. first stopper; 212. first electromagnet; 213. first movable block; 214. first receiving groove; 215. first spring rod; 22. first molded part; 221. first positioning block; 3. movable seat; 31 , liquid storage tank; 32, sealing plate; 33, first liquid guiding channel; 34, push rod; 35, hydraulic tank; 36, second liquid guiding channel; 37, adjusting rod; 38, nut; 4, mounting seat; 5, hydraulic cylinder; 6, second mold; 61, second mounting groove; 611, second stop block; 612, second electromagnet; 613, second movable block; 614, second receiving groove; 615, second spring rod; 62, second molded part; 621, second positioning block. DETAILED DESCRIPTION

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0035] Example: Figures 1-10 As shown, the present invention provides a technical solution, a multi-point stamping device for special vehicle box production, 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 provided on the mounting seat 4, the working end of the hydraulic cylinder 5 is connected to the movable seat 3, and the lifting of the movable seat 3 is controlled by the hydraulic cylinder 5, the base 1 is provided with a first mold 2 at one end close to the movable seat 3, and several groups of first forming parts 22 are provided on the first mold 2, the movable seat 3 is provided with a second mold 6 at one end close to the base 1, and several groups of second forming parts 62 are provided on the second mold 6, when stamping the vehicle box panel, the staff can first place the vehicle box panel above the several groups of first forming parts 22, and then turn on the hydraulic cylinder 5, and drive the movable seat 3 and the second mold through the hydraulic cylinder 5 6 moves downward, and the vehicle box panel is punched into a wavy shape through the cooperation of several groups of second forming parts 62 and several groups of first forming parts 22, which is convenient for the subsequent assembly of a special vehicle box body. 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 provided 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 the several groups of first forming parts 22 and the several groups of second forming parts 62 through the detection mechanism 12, so as to facilitate the staff to promptly discover whether the surfaces of the several groups of first forming parts 22 and the several groups of second forming parts 62 are worn, so as to avoid affecting the stamping quality of the subsequent vehicle box panel.

[0036] like Figure 2-Figure 3 As shown, two groups of linear motors 11 are provided, and the two groups of linear motors 11 are relatively arranged at the two ends of the base 1. The detection mechanism 12 includes a defect detection element 121 and a support column 124. Two groups of support columns 124 are provided, 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 provided between the two groups of support columns 124, and the defect detection element 121 is provided on the rotating bracket 122.

[0037] like Figure 2-Figure 3 As shown, a group of rotating motors 123 are provided on the outer side of the lower end of each group of support columns 124, and a group of sprocket transmission elements are provided inside each group of support columns 124. The rotating motors 123 are connected to the active end of the sprocket transmission element, and 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 of the present invention is not in operation, the detection mechanism 12 is located at the side end of the base 1 (such as Figure 2 As shown), in order to avoid the detection mechanism 12 hindering the lifting movement of the movable seat 3 during the stamping process, when the stamping is completed, the movable seat 3 and the second mold 6 are driven to reset by the hydraulic cylinder 5, and then the staff can turn on the linear motor 11, and the linear motor 11 is used to move the detection mechanism 12 between the first mold 2 and the second mold 6, and the surface of several groups of first molded parts 22 is inspected by the defect detection element 121 (the function realized by the defect detection element 121 belongs to the conventional technical means in this field, and the specific structure is not described). After the completion of the several groups of first molded parts 22, the staff can turn on the rotary motor 123, the rotating motor 123 drives the rotating bracket 122 to rotate one hundred and eighty degrees with the defect detection element 121 until the working end of the defect detection element 121 is aligned with the second mold 6, and finally the linear motor 11 is used to make the detection mechanism 12 move again between the first mold 2 and the second mold 6, and the surface of several groups of second molded parts 62 is inspected by the defect detection element 121. Through the above technical solution, the staff can quickly find out whether there is wear on the surfaces of several groups of first molded parts 22 and several groups of second molded parts 62, so as to avoid affecting the stamping quality of subsequent car body panels.

[0039] like Figures 1-8 As shown, the first mold 2 is provided with several groups of first mounting grooves 21, and a group of first positioning components is provided below each group of first mounting grooves 21. Each group of first molded parts 22 is detachably mounted in the first mounting grooves 21 through a group of first positioning components. The second mold 6 is provided with several groups of second mounting grooves 61, and a group of second positioning components is provided above each group of second mounting grooves 61. Each group of second molded parts 62 is detachably mounted in the second mounting grooves 61 through a group of second positioning components.

[0040] like Figure 4-Figure 5 As shown, the first positioning assembly includes a first stop block 211 and a first electromagnet 212. The first electromagnet 212 is arranged in the middle position of the first mounting groove 21. The first stop block 211 is arranged at the side end of the first electromagnet 212. A first positioning block 221 is arranged in the middle position below the first molded part 22. The first positioning block 221 is made of ferromagnetic material.

[0041] like Figure 6-Figure 8 As shown, two groups of first positioning holes are further provided under 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, a first movable block 213, a first receiving groove 214 and a first spring rod 215. The first transmission groove is arranged below the first electromagnet 212 and is filled with hydraulic oil. The first movable block 213 is arranged inside the first transmission groove. The first movable block 213 is magnetic. There are two groups of first receiving grooves 214. 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 are provided in each group of first receiving grooves 214. The first transmission groove is connected to the two groups of first receiving grooves 214, and each group of first spring rods 215 cooperates with a group of first positioning holes.

[0042] like Figure 6-Figure 8 As shown, the second positioning assembly includes a second stop block 611 and a second electromagnet 612. The second electromagnet 612 is arranged in the middle position of the second mounting groove 61. The second stop block 611 is arranged at the side end of the second electromagnet 612. A second positioning block 621 is arranged in the middle position below the second molded part 62. The second positioning block 621 is made of ferromagnetic material.

[0043] like Figure 6-Figure 8 As shown, two groups of second positioning holes are also provided 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, a second movable block 613, a second receiving groove 614 and a second spring rod 615. The second transmission groove is arranged above the second electromagnet 612 and is filled with hydraulic oil. The second movable block 613 is arranged inside the second transmission groove. The second movable block 613 is magnetic. There are two groups of second receiving grooves 614. 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 are provided in each group of second receiving grooves 614. The second transmission groove is connected to the two groups of second receiving grooves 614, and each group of second spring rods 615 cooperates with a group of second positioning holes.

[0044] During 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 group of first molded parts 22 is worn, the staff can turn off the first electromagnet 212 under the group of first molded parts 22. At this time, the first spring rod 215 will automatically retract into the first receiving groove 214. Then, after the staff removes the group of worn first molded parts 22 from the first installation groove 21, they can put the new first molded parts 22 into the first installation groove 21 again. The first stopper 211 and the first positioning block 221 are used for positioning, ensuring that the first positioning block 221 is aligned with the first electromagnet 212. The first spring rod 215 is automatically retracted into the first receiving groove 214. The rod 215 is aligned with the first positioning hole. Finally, the staff can turn on the first electromagnet 212 under the new first molded part 22. The first electromagnet 212 generates a set of magnetic fields that attract the first positioning block 221 but repel 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. The hydraulic oil filled in the first transmission groove is squeezed into the first receiving groove 214 through the first movable block 213. Under the action of hydraulic pressure, the first spring rod 215 will extend into the first positioning hole. The new first molded part 22 is fixed for a second time through 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 molded parts 62 is worn, the staff can turn off the second electromagnet 612 above the group of second molded parts 62. At this time, the second spring rod 615 will automatically retract into the second receiving groove 614. Then, after the staff removes the worn second molded part 62 from the second installation groove 61, they can put the new second molded part 62 into the second installation groove 61 again, and use the second stopper 611 and the second positioning block 621 to achieve the purpose of positioning, ensuring 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 molded part 62, and through the second electromagnet Iron 612 generates a set of magnetic fields that attract the second positioning block 621 but repel the second movable block 613. The second positioning block 621 is magnetically attracted by the second electromagnet 612, and the second movable block 613 is moved downward at the same time. The hydraulic oil filled in the second transmission groove is squeezed into the second receiving groove 614 through the second movable block 613. Under the action of hydraulic pressure, the second spring rod 615 will extend into the second positioning hole, and the new second molded part 62 is fixed for the second time through the second spring rod 615 and the second positioning hole. Compared with the current multi-point stamping device, the present invention can, on the one hand, quickly and precisely replace the worn first molded part 22 and the second molded part 62 as needed, and on the other hand, it can reduce the cost of replacing the stamping parts as a whole.

[0046] like Figure 9-10As shown, a liquid reservoir 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 center line of the nut 38 is aligned with the center line of the liquid reservoir 31, and the end of the liquid reservoir 31 away from the nut 38 is connected to the hydraulic tank 35 through the first liquid guide channel 33, a sealing disk 32 is provided in the liquid reservoir 31, and the hydraulic tank 35 is filled with hydraulic oil, and an adjusting rod 37 is provided at the 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.

[0047] like Figure 9-10 As shown, a group of telescopic grooves are respectively provided at both ends of the interior of the movable seat 3, a group of push rods 34 are provided in each group of telescopic grooves, and a group of compression springs are wound around the outside 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 of the two groups of telescopic grooves through the second liquid guide channel 36. The hydraulic oil in the liquid storage tank 31 is in a non-full state.

[0048] During normal operation of the present invention, the hydraulic tank 35 is filled with hydraulic oil, and the sealing disk 32 blocks the first liquid guide channel 33. Since the liquid is incompressible, the hydraulic cylinder 5 can directly drive the movable seat 3 to perform lifting movements. If, during stamping, the first mold 2 and the second mold 6 come into contact and encounter a power outage or equipment failure, the staff can rotate the adjusting rod 37 to make the sealing disk 32 move 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 into the two sets of telescopic grooves by the sealing disk 32. Under the action of hydraulic pressure, the two sets of push rods 34 will extend from the two sets of telescopic grooves, and the movable seat 3 will be lifted up by the two sets of push rods 34 to separate the first mold 2 and the second mold 6. Through the above technical solution, the staff can remove the car box plate from between the first mold 2 and the second mold 6 before repairing the stamping device. On the one hand, it is convenient for subsequent maintenance, and on the other hand, it can effectively prevent the car box plate from being damaged.

[0049] The working principle of the present invention is as follows: when punching the car box panel, the staff can first place the car box panel above several groups of first forming parts 22, and then start the hydraulic cylinder 5, and drive the movable seat 3 and the second mold 6 to move downward through the hydraulic cylinder 5, and punch the car box panel into a wave shape through the cooperation of several groups of second forming parts 62 and several groups of first forming parts 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 parts 22 and several groups of second forming parts 62. When it is detected that a certain group of first forming parts 22 or second forming parts 62 is worn, the staff The operator can quickly replace the worn first molded part 22 or the second molded part 62 as needed. If, during stamping, the first mold 2 and the second mold 6 come into contact and encounter a power outage or equipment failure, the operator can rotate the adjusting rod 37 to allow the hydraulic oil filled in the hydraulic tank 35 to flow into the liquid storage tank 31, and the hydraulic oil filled in the liquid storage tank 31 is squeezed into the two sets of telescopic grooves. Under the action of the hydraulic pressure, the two sets of push rods 34 will extend from the two sets of telescopic grooves, and the movable seat 3 will be lifted by the two sets of push rods 34 to separate the first mold 2 and the second mold 6, thereby making it convenient for the operator to remove the car box plate 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 descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-point stamping device for producing special vehicle bodies, characterized by: The multi-point punching device comprises a base (1), a movable seat (3) and a mounting seat (4), wherein 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 a working end of the hydraulic cylinder (5) is connected to the movable seat (3), a first mold (2) is arranged at one end of the base (1) close to the movable seat (3), and 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), and a plurality of groups of second molded parts (62) are arranged on the second mold (6), a linear motor (11) is further arranged at a side end of the base (1), and a detection mechanism (12) is arranged on the linear motor (11), and the detection mechanism (12) is used to detect the plurality of groups of first molded parts (22) and the plurality of groups of second molded parts (62); 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. The first positioning assembly comprises a first stopper (211) and a first electromagnet (212), the first electromagnet (212) being arranged at a middle position of the first mounting groove (21), the first stopper (211) being arranged at a side end of the first electromagnet (212), and a first positioning block (221) being arranged at a lower middle position of the first molding (22); Two groups of first positioning holes are further provided 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 further includes a first transmission groove and a first receiving groove (214). The first transmission groove is provided below the first electromagnet (212) and is filled with hydraulic oil. A first movable block (213) is provided in the first transmission groove. Two groups of the first receiving grooves (214) are provided, and the two groups of first receiving grooves (214) are respectively provided on both sides of the first transmission groove. A group of first spring rods (215) is provided 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).

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

3. A multi-point punching device for producing a special vehicle body according to claim 2, characterized in that: A group of rotating motors (123) are provided on the outer side of the lower end of each group of support columns (124), and a group of sprocket transmission elements are provided inside each group of support 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 a rotating shaft.

4. The multi-point punching device for producing a special vehicle body according to claim 1, characterized in that: The second positioning assembly comprises a second stopper (611) and a second electromagnet (612), wherein 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 lower middle position of the second molded part (62).

5. The multi-point punching device for producing a special vehicle body according to claim 4, characterized in that: Two groups of second positioning holes are further provided 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 further includes a second transmission groove and a second receiving groove (614). The second transmission groove is provided above the second electromagnet (612) and is filled with hydraulic oil. A second movable block (613) is provided in the second transmission groove. Two groups of second receiving grooves (614) are provided, and the two groups of second receiving grooves (614) are respectively provided on both sides of the second transmission groove. A group of second spring rods (615) is provided in each group of second receiving grooves (614). The second transmission groove is connected to the two groups of second receiving grooves (614).

6. The multi-point punching device for producing a special vehicle body according to claim 1, 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 the 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.

7. A multi-point punching device for producing a special vehicle body according to claim 6, characterized in that: A group of telescopic grooves are respectively provided at both ends of the interior of the movable seat (3), a group of push rods (34) are provided in each group of telescopic grooves, and a compression spring is wound around the outside 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 the second liquid guide channel (36). The hydraulic oil in the liquid storage tank (31) is in a non-filled state.

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