Flexible fixture for tailor welding of thermoformed door ring of automobile

Abstract

The utility model discloses an automobile thermal forming door ring tailor-welding flexible clamp which comprises a base plate, a suction positioning mechanism, a side positioning pin module and an auxiliary supporting piece, and the suction positioning mechanism, the side positioning pin module and the auxiliary supporting piece are detachably installed on the base plate where array hole sites are distributed. The specific number and positions of the suction positioning mechanisms, the side positioning pin modules and the auxiliary supporting pieces can be adjusted according to needs, telescopic front positioning pin assemblies and electromagnet sets are adopted in the suction positioning mechanisms, and the side positioning pin modules are positioning pin mechanisms capable of being adjusted in three directions. The automobile thermal forming door ring tailor-welding flexible clamp has the advantages that the assembly position can be adjusted, adjustment is convenient, consumed time is short, the application range of the flexible clamp can be effectively widened, lap joint edges during tailor-welding can be conveniently eliminated, and the utilization rate of materials is improved to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the field of welding, in particular to a flexible clamp for welding automobile thermoformed door rings. Background Art

[0002] The door knocker is a crucial component in the vehicle body, crucially important for its performance and impact on the vehicle's crashworthiness. Its manufacturing process is also a key focus during vehicle body production. Currently, there are two common methods used in automotive door knockers.

[0003] The first method involves using a large sheet of material slightly larger than the unfolded door ring. This sheet is then stamped or laser-cut into the shape of the door ring, and then the entire piece is stamped and formed. This method is simple and reliable, but it wastes significant material and doesn't allow the door ring's strength to be adjusted to the design requirements, such as requiring a 2000MPA strength at the upper A-pillar and 1200MPA at the lower side sill.

[0004] The second common method involves cutting each component of the door knocker separately, then forming them separately using a hot stamping process, and finally lap welding them together to form the door knocker. This process still results in a certain amount of material waste due to the overlap, and it also increases the weight of the vehicle body.

[0005] Based on the shortcomings of the above-mentioned existing door ring production process, a flexible fixture for welding automobile thermoformed door rings is designed. Utility Model Content

[0006] The purpose of the utility model is to provide a flexible fixture for tailor-welding a thermoformed door ring of an automobile, so as to solve one or more of the above-mentioned problems in the prior art.

[0007] The utility model provides a flexible fixture for tailor-welding thermoformed door rings for automobiles. The flexible fixture is used for positioning tailor-welded blanks. The flexible fixture comprises a base plate, a suction and positioning mechanism, a side positioning pin module, and an auxiliary support member. The base plate is provided with a plurality of holes. The suction and positioning mechanism, the side positioning pin module, and the auxiliary support member are all detachably connected to the base plate through the holes.

[0008] The suction and positioning mechanism includes a bracket, a front positioning pin assembly and a suction member group. The suction member group is provided on the top of the bracket. The front positioning pin assembly includes a front positioning pin and a telescopic mechanism. The bracket is connected to the front positioning pin through the telescopic mechanism.

[0009] The side positioning pin module is a positioning pin mechanism that can be adjusted in three directions;

[0010] The upper surfaces of the suction and positioning mechanism, the side positioning pin module and the auxiliary support member are all arranged correspondingly.

[0011] In some embodiments,

[0012] Several of the holes are arranged in an array;

[0013] The tightening component group is an electromagnet group;

[0014] The auxiliary support member includes a brush stand and / or a support column.

[0015] In some embodiments, the telescopic end of the telescopic mechanism is connected to the front positioning pin through a connecting seat, a slide rail can be added to the back of the connecting seat through a slide rail mounting seat, and a slide groove compatible with the slide rail can be added at the corresponding position on the bracket.

[0016] In some embodiments,

[0017] The suction and positioning mechanism also includes a positioning pin protection mechanism and a dust suction port. A dust suction port is installed on the side of the suction component group, and the dust suction port is connected to the smoke extraction and dust removal equipment through a pipe. The positioning pin protection mechanism is arranged corresponding to the front positioning pin assembly. The positioning pin protection mechanism includes an auxiliary telescopic mechanism and a protective cover. The protective cover is connected to the bracket through the auxiliary telescopic mechanism.

[0018] In some embodiments, the suction and positioning mechanism further includes a positioning scale, and the positioning scale is installed on the outer side wall of the bracket below the suction component group.

[0019] In some embodiments, the side positioning pin module includes a base, a three-way adjustment mechanism, and a side positioning pin column, and the side positioning pin column is set on the base through the three-way adjustment mechanism.

[0020] In some embodiments, a plurality of reinforcement members are added to the bracket.

[0021] In some embodiments, a plurality of supporting legs may be provided on the bottom of the substrate.

[0022] The advantages of the flexible fixture for welding automobile thermoformed door rings described in the utility model are:

[0023] The positions of the components on the substrate can be adjusted as needed to meet the positioning requirements of various products. The adjustment process is simple and time-saving.

[0024] The number and position of each component on the substrate can be adjusted as needed to meet the safety requirements of different strengths at different locations;

[0025] The application of the above-mentioned flexible fixture for tailor welding of automotive thermoformed door rings can effectively reduce the number of stamping dies used, optimize the process flow, eliminate overlap edges, and effectively improve material utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A top view of a flexible fixture for tailor-welding a thermoformed door ring for an automobile in some embodiments of the present invention;

[0027] Figure 2 This is a structural diagram of the application of the flexible fixture for tailor-welding automobile thermoformed door rings in some embodiments of the present invention;

[0028] Figure 3 This is a structural diagram of an adjustable side positioning pin module in some embodiments of the present invention;

[0029] Figure 4 This is a schematic structural diagram of the main perspective of the suction and positioning mechanism in some embodiments of the present invention;

[0030] Figure 5 This is a schematic structural diagram of a side view of a suction and positioning mechanism in some embodiments of the present invention;

[0031] Figure 6 This is a schematic structural diagram of the suction and positioning mechanism in some embodiments of the present invention. DETAILED DESCRIPTION

[0032] Combine Figures 1 to 6 As shown in the content, this embodiment proposes a flexible clamp for welding automotive thermoformed door rings, including a substrate 1, and a plurality of suction and positioning mechanisms, side positioning pin modules and auxiliary support members arranged on the substrate 1. The suction and positioning mechanisms, side positioning pin modules and auxiliary support members can be detachably connected to the substrate 1 through one or more connecting members such as bolts, and the upper surfaces of the suction and positioning mechanisms, side positioning pin modules and auxiliary support members are correspondingly arranged.

[0033] There are several holes 101 on the substrate 1. These holes can be set as needed or directly Figure 1 and Figure 2 The contents shown are arranged in an array, and the suction positioning mechanism, the side positioning pin module and the auxiliary support member can be connected to the substrate 1 through the hole 101.

[0034] In some specific implementations, a number of supporting feet 102 can be set at the bottom of the substrate 1. The height of the substrate 1 can be raised by the supporting feet 102 to facilitate the disassembly and installation of the suction and positioning mechanism, the side positioning pin module and the auxiliary support parts. At the same time, it can effectively avoid the influence of the suction and positioning mechanism, the side positioning pin module and the connecting parts between the auxiliary support parts and the substrate 1 on the stability of the substrate 1 when it is placed.

[0035] The suction positioning mechanism, side positioning pin module and auxiliary support are set according to the tailor-welded blank. The positioning of each tailor-welded blank requires at least three contact points, or one contact point and one contact line to ensure the accuracy of the positioning of each tailor-welded blank. The number and setting position of the suction positioning mechanism, side positioning pin module and auxiliary support on the base plate 1 can be adjusted and fixed as needed.

[0036] The suction positioning mechanism and the side positioning pin module are set on the side of the tailor-welded plate to be welded;

[0037] Auxiliary support members are distributed at the bottom of each tailor-welded blank to hold the blank, provide effective support for the blank, and ensure the stability of the blank during welding.

[0038] The auxiliary support may be a brush stand and / or a support column 5 .

[0039] The side positioning pin module can be a positioning pin mechanism that can be adjusted in three directions, such as: Figure 3 The structure shown includes a base 411, a reinforcing block 412, a three-way adjustment mechanism 413, and side positioning pins 414. The base 411 is connected to the base plate 1, and the side positioning pins 414 are connected to the base 411 via the three-way adjustment mechanism 413. The bottom of the reinforcing block 412 is connected to the base plate 1. One side end of the reinforcing block 412 is positioned above the base 411, and the bottom surface of this side end of the reinforcing block 412 contacts the base 411. The side positioning pin module can be manually adjusted within the space, which is simple and practical.

[0040] Combine Figures 4 to 6 As shown in the figure, the structure of the suction and positioning mechanism may include: a bracket 211, a front positioning pin assembly and a suction member group, a suction member group 213 is provided on the top of the bracket 211, the front positioning pin assembly includes a front positioning pin 214 and a telescopic mechanism 215, and the bracket 211 is connected to the front positioning pin 214 via the telescopic mechanism 215. The suction member group 213 may be an electromagnet group. In addition, the suction and positioning mechanism may also be equipped with one or more of a positioning pin protection mechanism, a dust suction port 216 and a positioning scale 219, wherein

[0041] The positioning pin protection mechanism is provided corresponding to the front positioning pin assembly. The positioning pin protection mechanism includes an auxiliary telescopic mechanism 220 and a protective cover 217. The protective cover 219 is connected to the bracket 211 through the auxiliary telescopic mechanism 220.

[0042] The dust suction port 216 is sucked tightly onto the side of the suction member assembly 213 and is connected to a smoke extraction and dust removal device through a pipe so as to effectively purify welding fumes during welding.

[0043] The positioning scale 219 is mounted on the outer wall of the bracket 211 below the suction member assembly 213 .

[0044] In some specific implementations, the telescopic end on the telescopic mechanism 215 is connected to the front positioning pin 214 through a connecting seat. A slide rail can be added to the back of the connecting seat through a slide rail mounting seat 218, and a slide groove compatible with the slide rail can be added at the corresponding position on the bracket 211. The setting of the slide rail and the slide groove enhances the stability of the front positioning pin 214 during movement.

[0045] In some specific implementations, a number of reinforcement members 212 are added to the bracket 211 . The reinforcement members 212 may be triangular in shape. The arrangement of the reinforcement members 212 enhances the structural stability of the bracket 211 .

[0046] The telescopic mechanism 215 and the auxiliary telescopic mechanism 220 can both be cylinders connected to a bidirectional air pump.

[0047] Combine Figure 1 and Figure 2 The specific configuration structure of the suction and positioning mechanism, the side positioning pin module and the auxiliary support member on the substrate 1 can be as follows:

[0048] On substrate 1, Figure 1 and Figure 2 The installation positions shown are set in order

[0049] Seven suction and positioning mechanisms, namely a first suction and positioning mechanism 201, a second suction and positioning mechanism 202, a third suction and positioning mechanism 203, a fourth suction and positioning mechanism 204, a fifth suction and positioning mechanism 205, a sixth suction and positioning mechanism 206, and a seventh suction and positioning mechanism 207;

[0050] Four side positioning pin modules, namely a first side positioning pin module 401, a second side positioning pin module 402, a third side positioning pin module 403, and a fourth side positioning pin module 404;

[0051] Nine brush stations, namely a first brush station 301, a second brush station 302, a third brush station 303, a fourth brush station 304, a fifth brush station 305, a sixth brush station 306, a seventh brush station 307, an eighth brush station 308, and a ninth brush station 309;

[0052] The eight support columns are a first support column 501 , a second support column 502 , a third support column 503 , a fourth support column 504 , a fifth support column 505 , a sixth support column 506 , a seventh support column 507 , and an eighth support column 508 .

[0053] The above-mentioned flexible fixture for tailor-welding automobile thermoformed door rings is used to perform tailor-welding of automobile thermoformed door rings. The number and position of the suction and positioning mechanism, side positioning pin module, and auxiliary support components on the base plate in the flexible fixture are adjusted according to the product drawing of the tailor-welded door ring, and then fixed. The specific welding process of the tailor-welding includes the following steps:

[0054] S1. Cut the blanks to form tailor-welded blanks. Laser cutting can be used in this process.

[0055] S2, loading and positioning, loading the tailor-welded plates in sequence as needed, wherein the loading process of the first plate is described in detail, the corresponding front positioning pin is acted upon by the telescopic mechanism, and the up and down movement is realized by the slide rail slider, first the corresponding front positioning pin rises, and the first plate is placed, and the positioning is realized through the two sets of front positioning pin assemblies, and then the first plate is contacted by the electromagnet and magnetically sucked tightly. The front positioning pin descends, and the protective cover corresponding to the front positioning pin moves horizontally and covers the front positioning pin to prevent damage from splashing on the back during subsequent welding, and realizes the function of receiving welding slag. Then the second plate is placed, and the second plate is positioned by the welding edge of the first plate and the corresponding side positioning pin module, and then the electromagnet it contacts is magnetically sucked tightly, and the loading and positioning process of the second plate is cycled in sequence, and finally the loading and positioning of all plates is realized;

[0056] S3, welding to form an integrated door knocker;

[0057] S4, hot stamping;

[0058] S5, cutting, in which three-dimensional laser cutting is adopted to form the corresponding door knocker.

[0059] The above-mentioned automotive thermoformed door ring welding flexible fixture can be used to position and load multiple welded plates corresponding to the door ring, and can also be used in other welding processes. It is only necessary to adjust the number and position of the suction positioning mechanism, side positioning pin module and auxiliary support parts on the base plate 1 according to the requirements of the flat welding plate.

[0060] The above undisclosed matters can all be implemented using existing technologies and are therefore not described in detail here.

[0061] For ordinary technicians, several similar variations and improvements can be made without departing from the creative concept of the utility model, and these should also be regarded as within the scope of protection of the utility model.

Claims

1. A flexible fixture for welding automobile thermoformed door rings, characterized in that: The flexible fixture for tailor-welding of thermoformed door rings for automobiles is used for positioning tailor-welded blanks. The flexible fixture for tailor-welding of thermoformed door rings for automobiles includes a base plate, a suction and positioning mechanism, a side positioning pin module, and an auxiliary support. The base plate is provided with a plurality of holes. The suction and positioning mechanism, the side positioning pin module, and the auxiliary support are all detachably connected to the base plate through the holes. The suction and positioning mechanism includes a bracket, a front positioning pin assembly and a suction member group. The suction member group is provided on the top of the bracket. The front positioning pin assembly includes a front positioning pin and a telescopic mechanism. The bracket is connected to the front positioning pin through the telescopic mechanism. The side positioning pin module is a positioning pin mechanism that can be adjusted in three directions; The upper surfaces of the suction and positioning mechanism, the side positioning pin module and the auxiliary support member are all arranged correspondingly.

2. The flexible fixture for tailor welding of automotive thermoformed door rings according to claim 1, wherein: Several of the holes are arranged in an array; The tightening component group is an electromagnet group; The auxiliary support member includes a brush stand and / or a support column.

3. The flexible fixture for tailor welding of automotive thermoformed door rings according to claim 1, wherein: The telescopic end of the telescopic mechanism is connected to the front positioning pin through a connecting seat. The back of the connecting seat can be equipped with a slide rail through a slide rail mounting seat, and a slide groove compatible with the slide rail can be added at the corresponding position on the bracket.

4. The flexible fixture for tailor welding of automotive thermoformed door rings according to claim 1, wherein: The suction and positioning mechanism also includes a positioning pin protection mechanism and a dust suction port. A dust suction port is installed on the side of the suction component group, and the dust suction port is connected to the smoke extraction and dust removal equipment through a pipe. The positioning pin protection mechanism is arranged corresponding to the front positioning pin assembly. The positioning pin protection mechanism includes an auxiliary telescopic mechanism and a protective cover. The protective cover is connected to the bracket through the auxiliary telescopic mechanism.

5. The flexible fixture for tailor welding of automobile thermoformed door rings according to claim 4, wherein: The suction and positioning mechanism also includes a positioning scale, and the positioning scale is installed on the outer side wall of the bracket below the suction component group.

6. The flexible fixture for tailor welding of automotive thermoformed door rings according to claim 1, wherein: The side positioning pin module includes a base, a three-way adjustment mechanism and a side positioning pin column, and the side positioning pin column is arranged on the base through the three-way adjustment mechanism.

7. The flexible fixture for tailor welding of automotive thermoformed door rings according to claim 1, wherein: A plurality of reinforcement members are added to the bracket.

8. The flexible fixture for tailor welding of automotive thermoformed door rings according to claim 1, wherein: A plurality of supporting legs may be provided at the bottom of the base plate.

Images