Production line for stamping automobile door frame column plate

Abstract

The utility model discloses a production line for stamping an automobile door frame column plate, and relates to the technical field of automobile part stamping, the production line comprises a die frame, at least three punching machines, oil pressure edge covering machines and a spot welding machine, the punching machines are arranged side by side and are parallel to the die frame, and the two oil pressure edge covering machines are symmetrically arranged on the two sides of the end of the die frame; one spot welding machine is arranged at the end, far away from the die frame, of each oil pressure covering machine, workbenches of the oil pressure covering machines are oppositely arranged, workbenches of the spot welding machines are oppositely arranged, the punching machine comprises a punching jig, the punching jig is provided with four sets of punching stations, each oil pressure covering machine comprises an edge covering jig, the edge covering jig is provided with at least one set of edge covering stations, and the punching stations and the edge covering stations are oppositely arranged. And a plurality of trolleys for turnover are arranged in a gap between the die frame and the punching machine. According to the production line, the die design of the punching machine and the covering machine is optimized, the number of punching dies and tools is reduced, the equipment and personnel arrangement is balanced by reasonably planning the production line, the development and production cost is reduced, and lean production is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts stamping, and in particular to a production line for stamping automobile door frame column plates. Background Art

[0002] Competition in the automotive supporting industry is becoming increasingly fierce. In order to survive better, related companies are exploring ways to reduce costs and increase efficiency in many fields. The existing technology of the manual production line for automobile door frame column assembly adopts a one-out-one form, that is, only one left or right assembly can be produced at a time. The process flow is outer panel semi-finished material (rolled parts), outer panel stamping 1, outer panel stamping 2, outer panel stamping 3, inner and outer panel hemming, inner and outer panel spot welding, inspection and packaging. A total of 3 people are connected to the production line. The hydraulic hemming process is the bottleneck that affects the entire production rhythm. The equipment can produce up to 140 pieces per hour. In addition, the production of the left and right automobile door frame column assembly requires a total of 6 sets of dies, with a large number of tooling, and an increase in the number of mold frames and guide columns, springs, pull rods, pull sleeves and other parts on the mold frames, resulting in rising costs. In addition, the factory storage rack space is limited, and the large number of dies undoubtedly increases storage tension, requiring more storage locations; after the production of the left automobile door frame column assembly is completed, the mold needs to be changed before the production of the right automobile door frame column assembly, which adds 30 minutes to the mold change time; on the one hand, the punching machines and personnel are not used reasonably. The production rhythm of two people working together on three punching machines can reach 180 pcs / h, while the rhythm of the hydraulic hemming equipment is at most 140 pcs / h, resulting in the accumulation of semi-finished products on the transfer trolley, which increases the idle time of the punching machine and fails to meet the requirements of lean production; on the other hand, three people can only produce one side at a time, with an actual measured output of 120 pcs / h, and the production efficiency is not high. Utility Model Content

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application embodiment provides a production line for stamping automobile door frame column plates, optimizes the mold design of punching machines and hemming machines, reduces the number of dies and tooling, and reasonably plans the production line to balance the layout of equipment and personnel, reduce the idle time of equipment and personnel, produce both left and right at the same time, reduce development and production costs, and achieve lean production.

[0004] According to the embodiment of the present application, a production line for stamping automobile door frame column plates includes a mold frame, a punching machine, a hydraulic hemming machine and a spot welding machine. At least three of the punching machines are arranged side by side and parallel to the mold frame. Two of the hydraulic hemming machines are symmetrically arranged on both sides of the end of the mold frame. Each of the hydraulic hemming machines is arranged with a spot welding machine at the end away from the mold frame. The workbenches of the hydraulic hemming machines are arranged opposite to each other, and the workbenches of the spot welding machines are arranged opposite to each other. The punching machine includes a stamping jig, which is equipped with 4 groups of stamping stations. The hydraulic hemming machine includes an hemming jig, which is equipped with at least one group of hemming stations. The gap between the mold frame and the punching machine is equipped with several trolleys for turnover.

[0005] According to the production line for stamping automobile door frame pillar panels of an embodiment of the present application, the stamping jig includes a first mold and a second mold, the first mold can move toward the second mold, the four groups of stamping stations are arranged on the second mold, and the first mold is provided with a tool for stamping.

[0006] According to the production line for stamping automobile door frame column panels in an embodiment of the present application, the second module is provided with two first positioning grooves for positioning the right automobile door frame column panel and two second positioning grooves for positioning the left automobile door frame column panel, and the first positioning grooves and the second positioning grooves are symmetrically arranged to form the stamping station.

[0007] According to the production line for stamping automobile door frame column plates in an embodiment of the present application, half of the first positioning groove and the second positioning groove are used for punching, and the other half of the first positioning groove and the second positioning groove are used for embossing and punching. The first mold is provided with a first punching knife corresponding to the punching position of the first positioning groove and the second positioning groove, and the first mold is provided with a first pressing knife and a first punch respectively corresponding to the embossing position and the punching position of the first positioning groove and the second positioning groove.

[0008] According to the production line for stamping automobile door frame column plates in an embodiment of the present application, a clamping cylinder and a first positioning block are respectively provided on both sides of the first positioning groove and the second positioning groove used for pressing and punching, and the clamping cylinder is used to push the right automobile door frame column plate or the left automobile door frame column plate against the first positioning block for positioning and pre-tightening.

[0009] According to the production line for stamping automobile door frame pillar plates in an embodiment of the present application, a second positioning block is arranged at one end of the first positioning groove and the second positioning groove, and a third positioning block is arranged at the other end.

[0010] According to the production line for stamping automobile door frame pillar panels of an embodiment of the present application, the hemming jig includes a third module and a fourth module, the third module can move toward the fourth module, the hemming station is arranged on the fourth module, and the third module is provided with a die cutter for pressing.

[0011] According to the production line for stamping automobile door frame column panels in an embodiment of the present application, the third positioning groove provided on the fourth module forms the hemming station, and the third positioning groove is used to cooperate with the die cutter to complete the press-forming hemming of the automobile door frame column panels, wherein the fourth positioning block and the fifth positioning block are provided at both ends of the third positioning groove.

[0012] According to the production line for stamping automobile door frame pillar plates in an embodiment of the present application, the spot welding machine includes a frame, the frame is equipped with a positioning platform for positioning the automobile door frame pillar plates, and a movable welding electrode is arranged above the positioning platform.

[0013] According to the production line for stamping automobile door frame column plates in the embodiment of the present application, the positioning platform is provided with a positioning groove, and a telescopic cylinder for pre-tightening the automobile door frame column plate is provided on the side of the positioning groove.

[0014] Based on the above technical scheme, the embodiment of the present application has at least the following beneficial effects: In the above technical scheme, the mold frame is directly opposite to the punch press, and at the same time, the hydraulic hemming machine is placed at the end of the mold frame, which can facilitate the rapid replacement of the mold and the turnover of the semi-finished automobile door frame column plate, maximize the use of the site and equipment, improve the production line, at least double the efficiency, and realize lean production. At the same time, compared with the previous set of molds that can only punch one product, the present application optimizes the design of the punch press's stamping fixture, so that four automobile door frame column plates can be stamped in different processes at the same time, the repeated processes of the operators are optimized, and the time for multiple stamping is reduced. Without increasing manpower and punch presses, a punch press can perform four processes at a time, greatly improving production efficiency. The semi-finished automobile door frame column plate is transported to the hydraulic hemming machine by a trolley for hemming shaping. After the hemming shaping is completed, it is taken to the spot welding machine for welding to complete the production of the automobile door frame mainboard. The turnover of the whole set of processes is more convenient and the operation is more smooth, so that lean production can be completed without increasing manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present application is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 is a schematic diagram of the layout of the production line of an embodiment of the present application;

[0017] Figure 2 It is a structural schematic diagram of a punch press in an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the structure of the second module in the embodiment of the present application. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the structure of the second module in the embodiment of the present application. Figure 2 ;

[0020] Figure 5 is a structural schematic diagram of the first module in an embodiment of the present application;

[0021] Figure 6 It is a structural schematic diagram of an edge wrapping jig in an embodiment of the present application;

[0022] Figure 7 It is a structural schematic diagram of a spot welding machine in an embodiment of the present application;

[0023] Figure 8 This is a schematic diagram of the structure of the trolley in an embodiment of the present application;

[0024] Fig. 9 It is a schematic diagram of the structure of the finished product transport vehicle in an embodiment of the present application. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0029] Reference Figure 1 The embodiment of the present application provides a production line for stamping a door frame column plate of an automobile, which specifically includes a mold frame 500, a punching machine 100, a hydraulic hemming machine 200 and a spot welding machine 300. At least three punching machines 100 are arranged side by side and parallel to the mold frame 500. Two hydraulic hemming machines 200 are symmetrically arranged on both sides of the end of the mold frame 500. A spot welding machine 300 is arranged at the end of each hydraulic hemming machine 200 away from the mold frame 500. The workbenches of the hydraulic hemming machines 200 are arranged facing each other. The workbenches of the spot welding machine 300 are arranged facing each other, wherein the punching machine 100 includes a stamping jig, which is equipped with 4 groups of stamping stations, the hydraulic hemming machine 200 includes an hemming jig, which is equipped with at least one group of hemming stations, and the gap between the mold frame 500 and the punching machine 100 is equipped with several trolleys 410 for turnover. In addition, a finished product conveying trolley 420 is arranged at one end of the spot welding machine 300 away from the hydraulic hemming machine 200 for storing the stamped automobile door frame mainboard.

[0030] In the above scheme, the mold frame 500 is placed directly opposite to the punch press 100. At the same time, the hydraulic hemming machine 200 is placed at the end of the mold frame 500, which can facilitate the rapid replacement of the mold and the turnover of the semi-finished automobile door frame column plate, maximize the use of the site and equipment, improve the production line, at least double the efficiency, and realize lean production. At the same time, compared with the previous set of molds that can only punch one product, the present application optimizes the design of the punching fixture of the punch press 100, so that four automobile door frame column plates can be punched at the same time, and the operator can The repetitive processes of people are optimized, and the time of multiple stamping is reduced. Without increasing the number of manpower and punching machine 100, a punching machine 100 can perform four processes at a time, which greatly improves the production efficiency. The semi-finished automobile door frame column plate is transported to the hydraulic hemming machine 200 for hemming shaping by the trolley 410. After the hemming shaping is completed, it is taken to the spot welding machine 300 for welding to complete the production of the automobile door frame mainboard. The turnover of the whole process is more convenient and the operation is smoother, so that lean production can be completed without increasing manpower.

[0031] Among them, Figure 2The overall structural diagram of the punch press 100 is shown. The punch press 100 includes a bed 110. A punching jig is arranged on the bed 110. The punching jig includes a first module 120 and a second module 130. The first module 120 can move toward the second module 130. Four groups of punching stations are arranged on the second module 130. A tool for punching is arranged on the first module 120. The corresponding automobile door frame column plate is positioned by the punching station, and then the tool is matched. When the first module 120 can move toward the second module 130 to close the mold, the punching of four automobile door frame column plates can be completed.

[0032] In some embodiments, Figure 3 and Figure 4 The second module 130 shown in the figure is provided with two first positioning grooves for positioning the right automobile door frame column plate 610 and two second positioning grooves for positioning the left automobile door frame column plate 620. The first positioning groove and the second positioning groove are symmetrically arranged to form a stamping station. The symmetrical arrangement, on the one hand, utilizes the structure of the automobile door frame column plate and can be reasonably arranged without increasing the jig. In addition, such a design also facilitates the operator to place the workpiece. When placing the workpiece, the worker does not need to put his hand between the first module 120 and the second module 130, thereby ensuring the life safety of the operator to the greatest extent.

[0033] Further, half of the first positioning groove and the second positioning groove are used for punching, and the other half of the first positioning groove and the second positioning groove are used for pressing and punching. Figure 5 As shown, the first die 120 is provided with a first punch 121 at the punching position corresponding to the first positioning groove and the second positioning groove, and the first die 120 is provided with a first pressing knife 122 and a first punch 123 at the pressing position and the punching position corresponding to the first positioning groove and the second positioning groove, respectively. The first positioning groove or the second positioning groove cooperates with the first punch 121 to achieve end cutting of the left automobile door frame column plate 620 or the right automobile door frame column plate 610, and the first positioning groove or the second positioning groove and the first pressing knife 122 or the first punch 123 to achieve pressing and punching at corresponding positions of the left automobile door frame column plate 620 or the right automobile door frame column plate 610, so that one jig can perform stamping operations on four workpieces, thereby greatly improving production efficiency.

[0034] In other embodiments, a clamping cylinder 131 and a first positioning block 133 are respectively provided on both sides of the first positioning groove and the second positioning groove used for pressing and punching. The clamping cylinder 131 is used to push the right automobile door frame column plate 610 or the left automobile door frame column plate 620 against the first positioning block 133 for positioning and pre-tightening. The first positioning block 133 is used as a positioning reference, and combined with the pre-tightening of the clamping cylinder 131, the left automobile door frame column plate 620 or the right automobile door frame column plate 610 can be positioned to the correct position before the stamping operation.

[0035] Furthermore, a second positioning block 132 is arranged at one end of the first positioning groove and the second positioning groove, and a third positioning block 134 is arranged at the other end. When positioning the automobile door frame column plate, one end of the automobile door frame column plate is first pressed against the second positioning block 132, and then the other end is pressed against the third positioning block 134 to achieve positioning limitation at both ends. The operator does not need to perform additional positioning adjustments, and the entire stamping operation is convenient. The operator only needs to observe whether the machine has errors and whether to load and unload materials.

[0036] like Figure 6 As shown, the hemming jig includes a third module 210 and a fourth module 220. The third module 210 can move toward the fourth module 220. The hemming station is arranged on the fourth module 220. The third module 210 is provided with a die cutter for pressing. The third module 210 can drive the die cutter to move toward the hemming station during the movement toward the fourth module 220, so as to be able to perform hemming shaping on the workpiece located at the hemming station.

[0037] Specifically, the third positioning groove provided in the fourth module 220 forms an edging station, and the third positioning groove is used to cooperate with the mold knife to complete the press-formed edging of the automobile door frame column plate, wherein the fourth positioning block 221 and the fifth positioning block 222 are provided at both ends of the third positioning groove. When positioning the automobile door frame column plate, first press one end of the automobile door frame main board against the fourth positioning block 221, and then press the other end against the fifth positioning block 222, thereby completing the complete positioning of the automobile door frame column plate, and the operation is simple.

[0038] like Figure 7 As shown, the spot welding machine 300 of the present application includes a frame 330, on which a positioning platform for positioning a door frame column plate of an automobile is provided, and a movable welding electrode 310 is arranged above the positioning platform. Furthermore, the positioning platform is provided with a positioning groove, and a telescopic cylinder 320 for pre-tightening the door frame column plate of the automobile is arranged on the side of the positioning groove. When performing the spot welding operation, the door frame column plate of the automobile is placed in the positioning groove, and then the pre-tightening limitation is achieved by the telescopic cylinder 320, and then the welding electrode 310 is manually operated to perform the spot welding operation.

[0039] In some other embodiments, Figure 8 As shown, the trolley 410 of the present application includes a first storage layer 411 and a second storage layer 412 for placing automobile door frame pillars. Of course, in order to improve turnover efficiency, multiple storage layers can be provided, which is not limited here.

[0040] like Fig. 9 As shown, the embodiment of the present application also provides a finished product conveying vehicle 420, which has multiple storage layers, each layer is separated by multiple compartments for separately storing automobile door frame column panels, to ensure that the finished products will not collide or rub against each other during the conveying process.

[0041] Compared with the prior art, the punch press 100 of the present application realizes the vertical placement of the workpieces, and simultaneously performs the stamping process of the left automobile door frame column plate 620 and the right automobile door frame column plate 610, optimizing the operation that originally required three times to be performed into only one stamping. At the same time, the symmetrical arrangement of the right and left parts also facilitates the loading and unloading of materials by workers. Without increasing the site, the site and equipment are utilized to the maximum extent, the production line is improved, the efficiency is doubled, and lean production is realized. In addition, compared with the existing production line, the original 6-person operation has been reduced to 4 people.

[0042] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A production line for stamping automobile door frame pillars, characterized in that: The invention comprises a mold frame (500), a punching machine (100), a hydraulic hemming machine (200) and a spot welding machine (300), wherein at least three of the punching machines (100) are arranged side by side and parallel to the mold frame (500), two hydraulic hemming machines (200) are symmetrically arranged on both sides of the end of the mold frame (500), and one of the spot welding machines (300) is arranged at the end of each hydraulic hemming machine (200) away from the mold frame (500). The work tables of the hydraulic hemming machine (200) are arranged opposite to each other, and the work tables of the spot welding machine (300) are arranged opposite to each other, wherein the punching machine (100) includes a stamping jig, and the stamping jig is equipped with 4 groups of stamping stations. The hydraulic hemming machine (200) includes an hemming jig, and the hemming jig is equipped with at least one group of hemming stations. The gap between the mold frame (500) and the punching machine (100) is equipped with a plurality of trolleys (410) for turnover.

2. The production line for stamping automobile door frame pillars according to claim 1 is characterized in that: The stamping jig comprises a first mold (120) and a second mold (130), the first mold (120) is capable of moving toward the second mold (130), the four groups of stamping stations are arranged on the second mold (130), and a tool for stamping is arranged on the first mold (120).

3. The production line for stamping automobile door frame pillars according to claim 2 is characterized in that: The second mold (130) is provided with two first positioning grooves for positioning the right automobile door frame column plate (610) and two second positioning grooves for positioning the left automobile door frame column plate (620), and the first positioning grooves and the second positioning grooves are symmetrically arranged to form the stamping station.

4. The production line for stamping automobile door frame pillars according to claim 3 is characterized in that: Half of the first positioning groove and the second positioning groove are used for punching, and the other half of the first positioning groove and the second positioning groove are used for pressing and punching. The first mold (120) is provided with a first punching knife (121) at the punching position corresponding to the first positioning groove and the second positioning groove, and the first mold (120) is provided with a first pressing knife (122) and a first punch (123) at the pressing position and the punching position corresponding to the first positioning groove and the second positioning groove.

5. The production line for stamping automobile door frame pillars according to claim 3 is characterized in that: A clamping cylinder (131) and a first positioning block (133) are respectively provided on both sides of the first positioning groove and the second positioning groove used for pressing and punching, and the clamping cylinder (131) is used to push the right automobile door frame column plate (610) or the left automobile door frame column plate (620) against the first positioning block (133) for positioning and pre-tightening.

6. The production line for stamping automobile door frame pillars according to claim 3, characterized in that: A second positioning block (132) is arranged at one end of the first positioning groove and the second positioning groove, and a third positioning block (134) is arranged at the other end.

7. The production line for stamping automobile door frame pillars according to claim 1, characterized in that: The hemming jig comprises a third module (210) and a fourth module (220); the third module (210) is capable of moving toward the fourth module (220); the hemming station is arranged on the fourth module (220); and a die cutter for pressing is arranged on the third module (210).

8. The production line for stamping automobile door frame pillars according to claim 7, characterized in that: The third positioning groove provided in the fourth mold (220) forms the hemming station, and the third positioning groove is used to cooperate with the mold knife to complete the press-forming hemming of the automobile door frame column plate, wherein the fourth positioning block (221) and the fifth positioning block (222) are provided at both ends of the third positioning groove.

9. The production line for stamping automobile door frame pillars according to claim 1, characterized in that: The spot welding machine (300) comprises a frame (330), the frame (330) is equipped with a positioning platform for positioning a door frame column plate of an automobile, and a movable welding electrode (310) is arranged above the positioning platform.

10. The production line for stamping automobile door frame pillars according to claim 9, characterized in that: The positioning platform is provided with a positioning groove, and a telescopic cylinder (320) for pre-tightening a door frame column plate of an automobile is provided on the side of the positioning groove.

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