Bending forming die for automobile skylight guide rail

Abstract

The invention relates to a bending forming die for an automobile skylight guide rail. The bending forming die comprises a dynamic pressing die and a positioning die which are matched with each other and arranged up and down. The positioning die comprises a bottom block, two backing plates vertically fixed to the top of the bottom block and symmetrically arranged front and back, a material supporting block arranged above the bottom block and located between the two backing plates, a reversing shaft transversely and concentrically inserted and fixed into the material supporting block, and a servo motor fixed to the top of the bottom block. A traction unit is further arranged between each side positioning block and the bottom block or between the bottom block and the backing plate on the same side, and each traction unit comprises two lifting air cylinders which are symmetrically arranged left and right; the movable pressing die comprises a lifting block and a plurality of movable pressing blocks which are detachably and rotatably connected to the bottom of the lifting block and are sequentially arranged from left to right; the blanking process is converted into an automatic mode, so that the operation steps are effectively simplified, and the processing efficiency is improved; in addition, the movable pressing die is converted into an assembled structure, so that disassembly and assembly are greatly facilitated, more time is saved, and the use cost is reduced.

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 also 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 after the forming is completed. Therefore, the feeding and discharging of the automobile sunroof guide rail are both manual, which makes the operation steps more complicated and the processing efficiency lower. 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: 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. The outer circumferential surface of the support block is formed with three first arc-shaped positioning surfaces uniformly arranged at equal angles in the circumferential direction, and a loading flap is formed between any two adjacent first arc-shaped positioning surfaces. The lower edges of the two backing plates are each provided with a discharge groove symmetrically distributed and cooperating with each loading flap; The positioning mold also includes two side positioning blocks movably connected to the inner walls of the two backing plates so as to have the function of vertical movement up and down. A second arc-shaped positioning surface that cooperates with the first arc-shaped positioning surface is formed at the lower opposite side corners of the two side positioning blocks; A traction unit is also provided between each side positioning block and the bottom block or a backrest 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 the backrest plate, and the telescopic ends of the lifting cylinders are arranged vertically upward and fixed on the side positioning block.

[0006] Preferably, the dynamic pressure mold includes a lifting block and a plurality of dynamic pressure blocks that are detachably and rotatably connected to the bottom of the lifting block and arranged in sequence from left to right. The lower outer wall of each dynamic pressure block is formed with an arc-shaped pressure-bearing surface, and each of the arc-shaped pressure-bearing surfaces is connected end to end to form an arc-shaped molding surface.

[0007] Preferably, a fixed support block is fixed to the end of each loading flap, and a positioning groove is provided on the end face of each fixed support block. The front and rear widths of the positioning groove match the front and rear thickness of each dynamic pressure block, and the left and right widths of the positioning groove match the sum of the left and right widths of each dynamic pressure block. The bottom of the positioning groove is formed with an arc-shaped positioning surface that matches the arc-shaped forming surface.

[0008] Preferably, a groove-shaped sinking cavity is opened at the bottom of the lifting block, and the root of each dynamic pressure block is movably inserted into the groove-shaped sinking cavity, and the front and rear outer walls of each dynamic pressure block are respectively slidably fitted on the front and rear inner walls of the groove-shaped sinking cavity.

[0009] Preferably, a knob screw is provided above each of the dynamic pressure blocks, each of the knob screws is inserted and threaded on the top of the lifting block, and the lower end of each of the knob screws extends into the groove-shaped sinking cavity and is rotatably and detachably connected to the root of a corresponding dynamic pressure block.

[0010] Preferably, two vertically distributed tightening screws are provided above each of the dynamic pressure blocks and are respectively located on the left and right sides of the knob screw. Each of the tightening screws is inserted and threaded on the top of the lifting block, and the threaded end of each of the tightening screws is pressed against the root outer wall of the corresponding dynamic pressure block.

[0011] Preferably, the curvature of the second arc-shaped positioning surface matches the curvature of the first arc-shaped positioning surface.

[0012] Preferably, the distance between each of the load carrying flap end and the center axis of the load block rotation is matched with the vertical depth of the discharge groove.

[0013] Preferably, the left and right width of the discharge groove is greater than the left and right length of the load block.

[0014] Compared with the prior art, the present application has the following advantages: 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 discharging 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 and assembly. Once the dynamic pressure block needs to be repaired or replaced, the whole dynamic pressure die does not need to be disassembled, and only the required dynamic pressure block needs to be disassembled, thereby saving time and reducing the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a left front side exploded view of the present application; Fig. 2 is a left front side view of the load block of the present application; Fig. 3 is a left front side exploded view of the dynamic pressure die of the present application; Fig. 4 is a structure view of the groove type sink cavity and arc forming surface of the present application. DETAILED DESCRIPTION

[0016] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning understood by a person with ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the present application do not represent any order, number, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships can also change accordingly. The term "and / or" is only a description of the association between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects.

[0017] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0018] like Figs. 1-4 As shown, a bending and forming die for a sunroof guide rail of an automobile comprises a dynamic pressure die 1 and a positioning die 2 which cooperate with each other and are respectively arranged up and down; The positioning die 2 includes a bottom block 21, two backing plates 22 vertically fixed to the top of the bottom block 21 and symmetrically arranged front and back, a supporting block 23 arranged above the bottom block 21 and located between the two backing plates 22, a reversing shaft 27 transversely and concentrically inserted and fixed in the supporting block 23, and a servo motor 28 fixed to 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. The rotating shaft of the servo motor 28 is transversely arranged and concentrically fixed to one end of the reversing shaft 27. The outer surface of the support block 23 is formed with three first arc-shaped positioning surfaces 231 uniformly arranged at equal angles along the circumferential direction. A loading flap 232 is formed between any two adjacent first arc-shaped positioning surfaces 231. The lower edges of the two backing plates 22 are each provided with a discharge groove 221 symmetrically distributed and cooperating with each loading flap 232. The positioning mold 2 also includes two side positioning blocks 25 movably connected to the inner walls of the two backing plates 22 and each having the function of vertical movement. A second arcuate positioning surface 251 is formed at the lower opposite corners of the two side positioning blocks 25 to cooperate with the first arcuate positioning surface 231. A traction unit is also provided between each side positioning block 25 and the bottom block 21 or a backrest plate 22 on the same side. The traction unit includes two lifting cylinders 26 arranged symmetrically on the left and right. The lifting cylinders 26 are fixed on the bottom block 21 or the backrest plate 22, and the telescopic ends of the lifting cylinders 26 are vertically arranged upward and fixed on the side positioning block 25.

[0019] The dynamic pressure mold 1 includes a lifting block 11 and a plurality of dynamic pressure blocks 12 that are detachably and rotatably connected to the bottom of the lifting block 11 and arranged in sequence from left to right. The lower outer wall of each dynamic pressure block 12 is formed with an arc-shaped pressure-bearing surface 121, and each arc-shaped pressure-bearing surface 121 is connected end to end to form an arc-shaped molding surface 15.

[0020] A fixed support block 24 is also fixed to the end of each loading petal 232, and a positioning groove 241 is provided on the end face of each fixed support block 24. The front and rear widths of the positioning groove 241 match the front and rear thickness of each dynamic pressure block 12, and the left and right widths of the positioning groove 241 match the sum of the left and right widths of each dynamic pressure block 12. The bottom of the positioning groove 241 is formed with an arc-shaped positioning surface 242 that matches the arc-shaped forming surface 15.

[0021] The bottom of the lifting block 11 is provided with a groove-shaped sunken cavity 111, and the root of each dynamic pressure block 12 is movably inserted into the groove-shaped sunken cavity 111, and the front and rear side walls of each dynamic pressure block 12 are respectively slidably attached to the front and rear inner walls of the groove-shaped sunken cavity 111.

[0022] The upper side of each dynamic pressure block 12 is further provided with a distributed knob screw 13, each of which is screwed into the top of the lifting block 11, and 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.

[0023] The upper side of each dynamic pressure block 12 is further provided with two top tightening screws 14 vertically distributed and respectively located on the left and right sides of the knob screw 13, each of which is screwed into the top of the lifting block 11, and the threaded end of each top tightening screw 14 is pressed against the outer wall of the root of the corresponding dynamic pressure block 12, which can prevent the reaction force acting on the dynamic pressure block 12 from being directly transmitted to the knob screw 13, and can also prevent the dynamic pressure block 12 from shaking left and right when subjected to the reaction force.

[0024] The curvature of the second arc-shaped positioning surface 251 cooperates with the curvature of the first arc-shaped positioning surface 231.

[0025] The distance between the end of each material-carrying petal 232 and the rotary center axis of the material-holding block 23 cooperates with the vertical depth of the discharging groove 221.

[0026] The left and right widths of the discharging groove 221 are greater than the left and right lengths of the material-holding block 23.

[0027] Each of the abutment plates 22 is provided with two vertically extending guide slot holes 222 respectively located on the left and right sides of the discharging groove 221, and each of the guide slot holes 222 is provided with a guide connecting block 29.

[0028] The two lifting cylinders 26 in each traction unit are arranged below the two guide connecting blocks 29 on the same side of one abutment plate 22, and the extension ends of the two lifting cylinders 26 are vertically upward and fixed on the two guide connecting blocks 29.

[0029] Working principle: The dynamic pressure die 1 and the positioning die 2 are respectively installed on the lifting mechanism and the base of the matched stamping equipment, and in the initial state, the dynamic pressure die 1 is located above the positioning die 2, the second arc-shaped positioning surface 251 on each side positioning block 25 is respectively attached to two adjacent first arc-shaped positioning surfaces 231, and thus one of the material-carrying petals 232 is located between the two side positioning blocks 25.

[0030] Then, the operator will need to process the car sunroof rail transversely into the positioning groove 241 on the positioning block 24 at the end of the above-mentioned load petals 232, and then operate the lifting mechanism in the stamping equipment to drive the dynamic pressure 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 dynamic pressure block 12 extends into the positioning groove 241, and then the arc forming surface 15 is pressed downward to compress the car sunroof rail, so that the car sunroof rail is bent and formed under the joint action of the arc-shaped positioning surface 242.

[0031] Then, the lifting mechanism in the stamping equipment is first operated to drive the dynamic pressure die 1 to move upward, until the lifting block 11 moves away from the two side positioning blocks 25, and then the extension ends of the two lifting cylinders 26 in each traction unit are driven to extend outward to drive the two side positioning blocks 25 to move upward, so that the second arc-shaped positioning surface 251 on the two side positioning blocks 25 respectively moves away from the two originally mutually abutting first arc-shaped positioning surfaces 231, until the lower part of each side positioning block 25 is located above the discharge groove 221 on the same side of the abutment plate 22.

[0032] Then, the servo motor 28 is started to rotate the rotating shaft by 120 degrees, and then the material supporting block 23 is synchronously and directionally rotated by the reversing shaft 27, so that the positioning block 24 loaded with the car sunroof rail enters or passes through the discharge groove 221 on one of the abutment plates 22 during the rotation of the material supporting block 23, and when the rotation angle of the positioning block 24 exceeds 90 degrees, the car sunroof rail that has been bent and formed in the positioning groove 241 on the positioning block 24 will automatically fall off due to gravity to leave the positioning block 24, so that automatic discharge is realized without manual removal of the car sunroof rail.

[0033] During the above process, the adjacent load petals 232 are just rotated between the two abutment plates 22, and then the operator will transversely place the next car sunroof rail to be processed into the positioning groove 241 on the positioning block 24 at the end of the above-mentioned load petals 232.

[0034] Finally, the extension ends of the two lifting cylinders 26 in each traction unit are first driven to retract inward to drive the two side positioning blocks 25 to move downward, so that the two side positioning blocks 25 are respectively moved to the front and rear sides of the load petals 232, until the second arc-shaped positioning surface 251 on the two side positioning blocks 25 respectively abuts against the corresponding two first arc-shaped positioning surfaces 231, so that the front and rear swinging of the load petals 232 is completely avoided to play a positioning and anti-loose role; then the lifting mechanism in the stamping equipment is operated to drive the dynamic pressure die 1 to move downward, and then the bending and forming step of the car sunroof rail is completed again according to the same principle, so as to form a cycle in this way.

[0035] If one of the dynamic pressure blocks 12 needs to be repaired or replaced, one knob screw 13 above it can be screwed to drive the dynamic pressure block 12 to move towards the opening of the groove-shaped sink cavity 111 until the dynamic pressure block 12 is completely removed from the groove-shaped sink cavity 111, then the dynamic pressure block 12 can be removed and repaired or replaced, so that the entire dynamic pressure die 1 does not need to be removed, and if it needs to be replaced, only the damaged dynamic pressure block 12 needs to be replaced, thereby saving the use cost; after the repair or replacement is completed, the dynamic pressure block 12 is first installed at the lower end of the original knob screw 13, and then the knob screw 13 is screwed in the opposite direction to gradually enter the dynamic pressure block 12 into the groove-shaped sink cavity 111 until the arc-shaped pressure surface 121 on the dynamic pressure block 12 is connected with the arc-shaped pressure surface 121 on the adjacent one or two dynamic pressure blocks 12, and finally the two jacking screws 14 are alternately screwed to press the threaded end of each jacking screw 14 on the root outer wall of the dynamic pressure block 12.

[0036] The automobile sunroof guide rail after bending and forming can be automatically sent out, without manual removal. Although the feeding is still manually operated, the unloading process is changed to automatic mode, thereby effectively simplifying the operation steps to improve the processing efficiency. At the same time, the dynamic pressure die 1 is changed to an assembled structure to greatly facilitate disassembly. Once it needs to be repaired or replaced, it does not need to be disassembled as a whole, but only the required dynamic pressure block 12 needs to be disassembled, thereby saving a lot of time and reducing the use cost.

[0037] 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 described in the foregoing examples, or make equivalent replacement for some 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 and forming die for a sunroof guide rail of an automobile, comprising a dynamic pressure die and a positioning die which cooperate with each other and are respectively arranged up and down, characterized in that: The positioning mold includes a bottom block, two backing plates vertically fixed to the top of the bottom block and symmetrically arranged front and back, a supporting block arranged above the bottom block and located between the two backing plates, a reversing shaft transversely and concentrically inserted and fixed in the supporting block, and a servo motor fixed to 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 to one end of the reversing shaft; The outer circumferential surface of the support block is formed with three first arc-shaped positioning surfaces uniformly arranged at equal angles in the circumferential direction, and a loading flap is formed between any two adjacent first arc-shaped positioning surfaces. The lower edges of the two backing plates are each provided with a discharge groove symmetrically distributed and cooperating with each loading flap; The positioning mold also includes two side positioning blocks movably connected to the inner walls of the two backing plates so as to have the function of vertical movement up and down. A second arc-shaped positioning surface that cooperates with the first arc-shaped positioning surface is formed at the lower opposite side corners of the two side positioning blocks; A traction unit is also provided between each side positioning block and the bottom block or a backrest 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 the backrest plate, and the telescopic ends of the lifting cylinders are arranged vertically upward and fixed on the side positioning block.

2. The bending forming die for the automobile sunroof guide rail according to claim 1, characterized in that: The dynamic pressure mold includes a lifting block and a plurality of dynamic pressure blocks that are detachably and rotatably connected to the bottom of the lifting block and arranged in sequence from left to right. The lower outer wall of each dynamic pressure block is formed with an arc-shaped pressure-bearing surface, and each of the arc-shaped pressure-bearing surfaces is connected end to end to form an arc-shaped molding surface.

3. The bending forming die for the automobile sunroof guide rail according to claim 2, characterized in that: A fixed support block is also fixed to the end of each loading petal, and a positioning groove is provided on the end face of each fixed support block. The front and rear widths of the positioning groove match the front and rear thickness of each dynamic pressure block, and the left and right widths of the positioning groove match the sum of the left and right widths of each dynamic pressure block. The bottom of the positioning groove is formed with an arc-shaped positioning surface that matches the arc-shaped forming surface.

4. The bending forming die for the automobile sunroof guide rail according to claim 2, characterized in that: A groove-shaped sinking cavity is provided at the bottom of the lifting block, and the root of each dynamic pressure block is movably inserted into the groove-shaped sinking cavity, and the front and rear outer walls of each dynamic pressure block are slidably fitted on the front and rear inner walls of the groove-shaped sinking cavity respectively.

5. The bending forming die for the automobile sunroof guide rail according to claim 2, characterized in that: A knob screw is also provided above each dynamic pressure block, and each knob screw is inserted and threaded on the top of the lifting block. The lower end of each knob screw extends into the groove-shaped sinking cavity and is rotatably and detachably connected to the root of a corresponding dynamic pressure block.

6. The bending forming die for the automobile sunroof guide rail according to claim 5, characterized in that: There are also two vertically distributed tightening screws above each of the dynamic pressure blocks, which are respectively located on the left and right sides of the knob screw. Each of the tightening screws is inserted and threaded on the top of the lifting block, and the threaded end of each tightening screw is pressed against the root outer wall of the corresponding dynamic pressure block.

7. The bending and forming die for the automobile 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 die for the automobile sunroof guide rail according to claim 1, characterized in that: The distance between the end of each material-carrying flap and the central axis of rotation of the material-supporting block matches the vertical depth of the discharge groove.

9. The bending forming die for the automobile sunroof guide rail according to claim 1, characterized in that: The left and right widths of the discharge groove are greater than the left and right lengths of the supporting block.

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