A bending forming die for an automobile sunroof guide rail

Abstract

The present application relates to a kind of automobile sunroof guide rail's bending forming die, including cooperation and respectively upper and lower setting dynamic pressure mould and positioning mould;Positioning mould includes bottom block, two vertical fixed in bottom block top and front and back symmetric setting backrest plate, be located between the two backrest plate and be set in the material block above bottom block, transverse and concentrically and fixed in the material block of reversing shaft, and fixed in the servo motor of bottom block top;Each side positioning block is also provided with a traction unit between bottom block or same side one backrest plate, and traction unit includes two left and right symmetric setting lifting cylinder;Dynamic pressure mould includes lifting block and multiple detachable and rotatable connecting in lifting block bottom and sequentially setting from left to right dynamic pressure block;The present application changes blanking process into automatic mode, and then effectively simplifies the operation step to improve the processing efficiency;Dynamic pressure mould is also changed into assembled structure to greatly facilitate disassembly, and then both save more time and reduce use cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical processing, in particular to a bending forming die for automobile sunroof guide rail. BACKGROUND

[0002] The automobile sunroof guide rail is the core component of the automobile sunroof system, and its main function is to provide precise track support for the movement of the sunroof glass panel to ensure the stability and reliability during the opening and closing process. Currently, the automobile sunroof guide rails on the market are mostly made of lightweight materials such as aluminum alloy and carbon fiber, which take into account both strength and weight control to improve fuel economy and driving quietness.

[0003] The automobile sunroof guide rail made of aluminum alloy needs to go through multiple processing procedures such as cutting, milling, punching, and bending forming. The existing bending forming procedure is completed with the help of a matching bending forming die in a corresponding stamping equipment. Although the bending forming process of the automobile sunroof guide rail is automatic, the operator must manually place the automobile sunroof guide rail into the matching forming die before processing and take it out manually after the forming is completed. Therefore, the feeding and discharging of the automobile sunroof guide rail are both manual, which makes the operation steps cumbersome and the processing efficiency low. At the same time, the dynamic pressure module of the existing bending forming die adopts a monolithic structure, which is inconvenient to disassemble and assemble. Once it needs to be repaired or replaced, it must be disassembled and assembled as a whole, which is time-consuming and costly. Therefore, there is an urgent need to solve this problem. SUMMARY

[0004] In view of the above-mentioned status of the prior art, the technical problem to be solved by the present application is to provide a bending forming die for automobile sunroof guide rail, which changes the discharging process into an automatic mode, effectively simplifies the operation steps to improve the processing efficiency, and greatly facilitates the disassembly and assembly, thereby saving a lot of time and reducing the use cost.

[0005] The technical solution adopted by the present application to solve the above-mentioned technical problem is as follows: a bending forming die for automobile sunroof guide rail, comprising a dynamic pressure die and a positioning die which are matched with each other and arranged above and below respectively, characterized in that:

[0006] The positioning die comprises a bottom block, two backstop plates vertically fixed on the top of the bottom block and arranged symmetrically front and back, a material supporting block arranged above the bottom block and located between the two backstop plates, a reversing shaft transversely and concentrically fixed in the material supporting block, and a servo motor fixed on the top of the bottom block, both ends of the reversing shaft are rotatably connected to the top of the bottom block, and the rotating shaft of the servo motor is transversely arranged and concentrically fixed at one end of the reversing shaft.

[0007] The outer peripheral surface of the material supporting block is formed with three first arc-shaped positioning surfaces which are uniformly and equiangularly arranged along the circumferential direction, and each of the first arc-shaped positioning surfaces is formed between any two adjacent first arc-shaped positioning surfaces.

[0008] The positioning die further comprises two side positioning blocks which are movably connected to the inner walls of the two abutment plates respectively so as to have up-and-down vertical movement function, and each of the two side positioning blocks is formed with a second arc-shaped positioning surface at the lower opposite side corner thereof, which is matched with the first arc-shaped positioning surface.

[0009] Each of the side positioning blocks is further provided with a traction unit between the bottom block or the same side abutment plate, and the traction unit comprises two lifting cylinders which are symmetrically arranged left and right, and the lifting cylinders are fixed on the bottom block or the abutment plate, and the telescopic ends of the lifting cylinders are vertically upward arranged and fixed on the side positioning block.

[0010] Preferably, the dynamic pressure die comprises a lifting block and a plurality of dynamic pressure blocks which are detachably and rotatably connected to the bottom of the lifting block and sequentially arranged from left to right, and the lower outer wall of each of the dynamic pressure blocks is formed with an arc-shaped pressure bearing surface, and each of the arc-shaped pressure bearing surfaces is sequentially connected at the head and tail to form an arc-shaped forming surface.

[0011] Preferably, the end of each of the material supporting petals is further fixed with a positioning support block, the end surface of each of the positioning support blocks is formed with a positioning groove, the front and back width of the positioning groove is matched with the front and back thickness of each of the dynamic pressure blocks, the left and right width of the positioning groove is matched with the sum of the left and right width of each of the dynamic pressure blocks, and the bottom of the positioning groove is formed with an arc-shaped positioning surface which is matched with the arc-shaped forming surface.

[0012] Preferably, the bottom of the lifting block is formed with a groove-shaped sunken cavity, and the root of each of the dynamic pressure blocks is movably inserted into the groove-shaped sunken cavity, and the front and back outer walls of each of the dynamic pressure blocks are respectively slidably attached to the front and back inner walls of the groove-shaped sunken cavity.

[0013] Preferably, the upper side of each of the dynamic pressure blocks is further provided with a knob screw which is arranged and distributed, each of the knob screws is screw-connected to the top of the lifting block, and the lower end of each of the knob screws is inserted into the groove-shaped sunken cavity and is rotatably and detachably connected to the root of the corresponding dynamic pressure block.

[0014] Preferably, the upper side of each of the dynamic pressure blocks is further provided with two jacking screws which are vertically distributed and respectively located at the left and right sides of the knob screw, each of the jacking screws is screw-connected to the top of the lifting block, and the threaded end of each of the jacking screws is pressed against the outer wall of the root of the corresponding dynamic pressure block.

[0015] Preferably, the curvature of the second arc-shaped positioning surface matches the curvature of the first arc-shaped positioning surface.

[0016] Preferably, the distance between each of the load segment end and the center axis of the load block matches the vertical depth of the discharge groove.

[0017] Preferably, the left and right width of the discharge groove is greater than the left and right length of the load block.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] The present application can automatically send out the automobile sunroof guide rail after bending and forming, without manual taking out. Although the feeding still adopts manual operation, the unloading process is changed to automatic mode, thereby effectively simplifying the operation steps and improving the processing efficiency. Meanwhile, the dynamic pressure die is changed to an assembled structure, thereby greatly facilitating the disassembly. Once the dynamic pressure die needs to be repaired or replaced, it does not need to be disassembled as a whole, but only needs to be disassembled individually, thereby saving time and reducing the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a left front side exploded view of the present application;

[0021] Fig. 2 is a left front side view of the load block of the present application;

[0022] Fig. 3 is a left front side exploded view of the dynamic pressure die of the present application;

[0023] Fig. 4 is a structure view of the groove type sink cavity and arc-shaped surface. DETAILED DESCRIPTION

[0024] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meanings as understood by one of ordinary skill in the art to which this application pertains. The terms "first", "second", and similar terms do not imply any order, quantity, or importance, but are used to distinguish different components. The terms "include", "comprise", and similar terms are intended to mean that the elements or objects listed after the terms encompass the elements or objects recited after the terms, and equivalents thereof, without excluding other elements or objects. The terms "connected" or "linked" or similar terms do not limit to physical or mechanical connections or links, but can include electrical connections or links, whether direct or indirect. The terms "upper", "lower", "left", "right", and similar terms are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly. The term "and / or" is merely a description of the associated relationship of the associated objects, and represents three possible relationships, for example, A and / or B, which means that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects.

[0025] In order to keep the following description of the embodiments of the present application clear and brief, the detailed description of known functions and known components is omitted.

[0026] As shown in Figs. 1-4 A bending forming die for an automobile sunroof guide rail comprises a movable pressure die 1 and a positioning die 2 which are matched with each other and arranged above and below, respectively.

[0027] The positioning die 2 comprises a bottom block 21, two backstop plates 22 which are vertically fixed on the top of the bottom block 21 and arranged symmetrically in front and back, a material supporting block 23 which is arranged above the bottom block 21 and located between the two backstop plates 22, a reversing shaft 27 which is transversely and concentrically fixed in the material supporting block 23, and a servo motor 28 which is fixed on the top of the bottom block 21, both ends of the reversing shaft 27 are rotatably connected to the top of the bottom block 21, and the rotating shaft of the servo motor 28 is transversely arranged and concentrically fixed at one end of the reversing shaft 27.

[0028] The outer circumferential surface of the material supporting block 23 is formed with three first arc-shaped positioning surfaces 231 which are uniformly arranged at equal angles in the circumferential direction, and each of the first arc-shaped positioning surfaces 231 is formed with a material supporting lobe 232 between any two adjacent first arc-shaped positioning surfaces 231, and the lower edges of the two backstop plates 22 are each provided with a material discharging groove 221 which is symmetrically distributed and matched with each material supporting lobe 232.

[0029] The positioning die 2 further comprises two side positioning blocks 25 which are each movably connected to the inner walls of the two backstop plates 22 to have an up-and-down vertical movement function, and the lower parts of the two side positioning blocks 25 are each formed with a second arc-shaped positioning surface 251 which is matched with the first arc-shaped positioning surface 231.

[0030] Each side positioning block 25 is also provided with a traction unit between the bottom block 21 or the same side one backstop plate 22, the traction unit includes two left and right symmetrical lifting cylinders 26, the lifting cylinders 26 are fixed on the bottom block 21 or the backstop plate 22, the telescopic end of the lifting cylinder 26 is vertically upward and fixed on the side positioning block 25.

[0031] The dynamic pressure mold 1 comprises a lifting block 11 and a plurality of detachable and rotatable dynamic pressure blocks 12 connected to the bottom of the lifting block 11 and arranged in sequence from left to right, the lower side of each dynamic pressure block 12 is formed with an arc-shaped pressure bearing surface 121, and the arc-shaped pressure bearing surfaces 121 are connected end to end to form an arc-shaped forming surface 15.

[0032] The end of each load petal 232 is also fixed with a positioning block 24, the end face of each positioning block 24 is provided with a positioning groove 241, the front and back width of the positioning groove 241 is matched with the front and back thickness of each dynamic pressure block 12, the left and right width of the positioning groove 241 is matched with the sum of the left and right width of each dynamic pressure block 12, and the bottom of the positioning groove 241 is formed with an arc-shaped positioning surface 242 matched with the arc-shaped forming surface 15.

[0033] The bottom of the lifting block 11 is provided with a groove-shaped sunken cavity 111, the root of each dynamic pressure block 12 is movably inserted into the groove-shaped sunken cavity 111, and the front and back two side walls of each dynamic pressure block 12 are respectively slidably attached to the front and back two side walls of the groove-shaped sunken cavity 111.

[0034] The upper side of each dynamic pressure block 12 is also provided with a knob screw 13, each knob screw 13 is inserted and screwed into the top of the lifting block 11, the lower end of each knob screw 13 extends into the groove-shaped sunken cavity 111 and is rotatably and detachably connected to the root of the corresponding dynamic pressure block 12.

[0035] The upper side of each dynamic pressure block 12 is also provided with two vertical distribution top screws 14 located on the left and right sides of the knob screw 13, each top screw 14 is inserted and screwed into the top of the lifting block 11, and the threaded end of each top screw 14 is pressed against the outer wall of the root of the corresponding dynamic pressure block 12, which can prevent the reaction force of the dynamic pressure block 12 from being directly transmitted to the knob screw 13, and can also avoid the left and right shaking of the dynamic pressure block 12 when subjected to the reaction force.

[0036] The curvature of the second arc-shaped positioning surface 251 is matched with the curvature of the first arc-shaped positioning surface 231.

[0037] The distance between the end of each load petal 232 and the rotation center axis of the load block 23 is matched with the vertical depth of the discharge groove 221.

[0038] The left and right widths of the discharging groove 221 are greater than the left and right lengths of the material supporting block 23.

[0039] Two guide slot holes 222 are formed in each of the buttress plates 22 and are vertically oriented and located on the left and right sides of the discharging groove 221. One guide connecting block 29 is inserted into each of the guide slot holes 222.

[0040] The two lifting cylinders 26 in each of the traction units are arranged below the two guide connecting blocks 29 on the same side of one of the buttress plates 22. The extension and retraction ends of the two lifting cylinders 26 are vertically upwardly arranged and fixed to the two guide connecting blocks 29, respectively.

[0041] Working principle:

[0042] The movable pressing die 1 and the positioning die 2 are installed on the lifting mechanism and the base of the matched stamping equipment, respectively. In the initial state, the movable pressing die 1 is located above the positioning die 2. The second arc-shaped positioning faces 251 on the two side positioning blocks 25 are respectively attached to the two adjacent first arc-shaped positioning faces 231, so that one of the load petals 232 is located between the two side positioning blocks 25.

[0043] Then, the operator horizontally places the automobile sunroof rail to be processed into the positioning groove 241 on the positioning block 24 at the end of the load petal 232. Then, the operator controls the lifting mechanism in the stamping equipment to drive the movable pressing die 1 to move downward, so that the lifting block 11 is inserted between the two side positioning blocks 25 until the bottom outer wall of the lifting block 11 abuts against the top outer wall of the positioning block 24. At this time, the lower side of each movable pressing block 12 extends into the positioning groove 241, and the automobile sunroof rail is pressed downward by the arc-shaped forming surface 15, so that the automobile sunroof rail is bent and formed under the combined action of the arc-shaped positioning faces 242.

[0044] Then, the operator controls the lifting mechanism in the stamping equipment to drive the movable pressing die 1 to move upward until the lifting block 11 moves away from the two side positioning blocks 25. The operator drives the extension and retraction ends of the two lifting cylinders 26 in each of the traction units to extend outward to drive the two side positioning blocks 25 to move upward, so that the second arc-shaped positioning faces 251 on the two side positioning blocks 25 are separated from the two originally attached first arc-shaped positioning faces 231, respectively, until the lower part of each of the side positioning blocks 25 is located above the discharging groove 221 on the same side of one of the buttress plates 22.

[0045] Then, the servo motor 28 is started to rotate the rotating shaft 120 degrees, and the supporting block 23 is driven to rotate synchronously and in the same direction by the reversing shaft 27, so that a fixed supporting block 24 loaded with the automobile sunroof guide rail enters or passes through the discharging groove 221 on one of the two abutment plates 22 during the rotation of the supporting block 23. When the rotation angle of the fixed supporting block 24 exceeds 90 degrees, the automobile sunroof guide rail that has been formed by bending in the positioning groove 241 on the fixed supporting block 24 will automatically fall off due to gravity, thereby achieving automatic discharging without manual removal of the automobile sunroof guide rail.

[0046] During the above process, the adjacent supporting block 232 is rotated between the two abutment plates 22, and then the next automobile sunroof guide rail to be processed is placed horizontally in the positioning groove 241 on the fixed supporting block 24 at the end of the supporting block 232.

[0047] Finally, the extension ends of the two lifting cylinders 26 in each traction unit are driven to retract inward to drive the two side positioning blocks 25 to move downward, and then the two side positioning blocks 25 are moved to the front and rear sides of the supporting block 232, respectively, until the second arc-shaped positioning surfaces 251 on the two side positioning blocks 25 are attached to the corresponding first arc-shaped positioning surfaces 231, thereby completely preventing the supporting block 232 from swinging forward and backward, achieving positioning and anti-loosening effects. Then, the lifting mechanism in the stamping equipment is controlled to drive the movable die 1 to move downward, and then the bending and forming steps of the automobile sunroof guide rail are completed again, and the process is repeated to form a cycle.

[0048] If one of the movable blocks 12 needs to be repaired or replaced, the knob screw 13 above it can be rotated to drive the movable block 12 to move towards the opening of the groove-shaped sink cavity 111 until the movable block 12 completely leaves the groove-shaped sink cavity 111, and then the movable block 12 can be removed for repair or replacement, and the entire movable die 1 does not need to be removed, and if replacement is needed, only the damaged movable block 12 needs to be replaced, thereby saving the use cost. After repair or replacement is completed, the movable block 12 is installed at the lower end of the original knob screw 13, and then the knob screw 13 is rotated in the opposite direction to gradually move the movable block 12 into the groove-shaped sink cavity 111 until the arc-shaped pressure surface 121 on the movable block 12 is connected to the arc-shaped pressure surface 121 on one or two adjacent movable blocks 12, and finally the two jacking screws 14 are alternately rotated to press the threaded ends of each jacking screw 14 against the root outer wall of the movable block 12.

[0049] The present application can automatically send out the automobile sunroof guide rail after bending and forming, without manual taking out. Although the feeding still adopts manual operation, the unloading process is changed to automatic mode, thereby effectively simplifying the operation steps to improve the processing efficiency. Meanwhile, the dynamic pressure die 1 is changed to an assembled structure to greatly facilitate disassembly. Once it needs to be overhauled or replaced, it does not need to be disassembled as a whole. Only the required dynamic pressure block 12 needs to be disassembled, thereby saving more time and reducing the use cost.

[0050] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A bending forming mold for an automotive sunroof guide rail, comprising a dynamic pressure mold and a positioning mold that cooperate with each other and are respectively arranged vertically, characterized in that: The positioning module includes a base block, two vertically fixed backing plates symmetrically arranged on the top of the base block, a material support block located above the base block and between the two backing plates, a reversing shaft horizontally and concentrically fixed in the material support block, and a servo motor fixed on the top of the base block. Both ends of the reversing shaft are rotatably connected to the top of the base block, and the rotation shaft of the servo motor is horizontally arranged and concentrically fixed to one end of the reversing shaft. Three first arc-shaped positioning surfaces are formed on the outer circumferential surface of the material support block at equal angles along the circumferential direction. A material loading petal is formed between any two adjacent first arc-shaped positioning surfaces. A discharge groove is provided on the lower edge of each of the two backing plates, which is symmetrically distributed and cooperates with each material loading petal. The positioning module also includes two side positioning blocks that are movably connected to the inner walls of the two backing plates, each having the function of vertical movement up and down. At the lower opposite side corners of the two side positioning blocks, a second arc-shaped positioning surface is formed that cooperates with the first arc-shaped positioning surface. Each of the side positioning blocks is also provided with a traction unit between the bottom block or a backing plate on the same side. The traction unit includes two lifting cylinders arranged symmetrically on the left and right. The lifting cylinders are fixed on the bottom block or backing plate, and the telescopic ends of the lifting cylinders are set vertically upward and fixed on the side positioning block.

2. The bending forming mold for an automotive sunroof guide rail according to claim 1, characterized in that, The dynamic pressure mold includes a lifting block and multiple detachable and rotatable dynamic pressure blocks connected to the bottom of the lifting block and arranged sequentially from left to right. Each dynamic pressure block has an arc-shaped pressure-bearing surface on its lower outer wall, and each arc-shaped pressure-bearing surface is joined end to end to form an arc-shaped profile.

3. The bending forming mold for an automotive sunroof guide rail according to claim 2, characterized in that, Each of the material-carrying segments is also fixed at its end with a fixed support block. Each fixed support block has a positioning groove on its end face. The front-to-back width of the positioning groove matches the front-to-back thickness of each moving pressure block. The left-to-right width of the positioning groove matches the sum of the left and right widths of each moving pressure block. The bottom of the positioning groove forms an arc-shaped positioning surface that matches the arc-shaped surface.

4. The bending forming mold for an automotive sunroof guide rail according to claim 2, characterized in that, The bottom of the lifting block is provided with a groove-shaped cavity, and the root of each of the dynamic pressure blocks is movably inserted into the groove-shaped cavity. The front and rear outer walls of each of the dynamic pressure blocks are slidably attached to the front and rear inner walls of the groove-shaped cavity.

5. The bending forming mold for an automotive sunroof guide rail according to claim 2, characterized in that, Each of the dynamic pressure blocks is also provided with a distributed knob screw on its top. Each knob screw is inserted and screwed into the top of the lifting block. The lower end of each knob screw extends into the groove-shaped cavity and is rotatably and detachably connected to the root of the corresponding dynamic pressure block.

6. The bending forming mold for an automotive sunroof guide rail according to claim 5, characterized in that, Above each of the moving pressure blocks are two vertically distributed tightening screws located on the left and right sides of the knob screw, respectively. Each tightening screw is threaded through and screwed onto the top of the lifting block, and the threaded end of each tightening screw is pressed against the outer wall of the root of the corresponding moving pressure block.

7. The bending forming mold for an automotive sunroof guide rail according to claim 1, characterized in that, The curvature of the second arc-shaped positioning surface matches the curvature of the first arc-shaped positioning surface.

8. The bending forming mold for an automotive sunroof guide rail according to claim 1, characterized in that, The distance between the end of each material-carrying petal and the rotation center axis of the material support block is matched with the vertical depth of the discharge groove.

9. The bending forming mold for an automotive sunroof guide rail according to claim 1, characterized in that, The left and right width of the discharge groove is greater than the left and right length of the material support block.

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