CN216097224U

CN216097224U - Front auxiliary frame front cross beam welding positioning assembly

Info

Publication number: CN216097224U
Application number: CN202122347298.1U
Authority: CN
Inventors: 邓燕; 胡文淘
Original assignee: Chongqing Xinlongjun Industry And Trade Co ltd
Current assignee: Chongqing Xinlongjun Industry And Trade Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-22
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a welding and positioning assembly for a front cross beam of a front auxiliary frame.A front cross beam main body is arranged in a fixing mechanism before a lower sheet metal part of the front cross beam of the front auxiliary frame is welded, and the front cross beam main body is clamped and fixed through a first clamping component and a material bearing component of the fixing mechanism; the lower sheet metal part to be welded is placed in a pre-positioning mechanism, the lower sheet metal part is clamped and fixed through a first press-fitting assembly, and the placing position is determined through a positioning inspection assembly, so that accurate positioning is guaranteed; when needing to weld, lower sheet metal component to fixed establishment after the locating is grabbed and pressed from both sides through robotic arm to press from both sides the dress subassembly through the second and fix last sheet metal component and lower sheet metal component, make things convenient for follow-up weldment work, avoided because of the welding error that the sheet metal component can't accurately place down and cause.

Description

Front auxiliary frame front cross beam welding positioning assembly

Technical Field

The utility model relates to the technical field of automobile production tooling equipment, in particular to a front auxiliary frame front beam welding and positioning assembly.

Background

The front cross beam of the front auxiliary frame of the automobile comprises a cavity body formed by welding an upper sheet metal part and a lower sheet metal part, mounting holes used for connecting other structures on the automobile are formed in the upper sheet metal part and the lower sheet metal part, and the requirement on the positioning accuracy during welding is high. In actual welding, the lower sheet metal part is firstly located at a feeding station, the lower sheet metal part is grabbed and placed on a machine table through a manipulator, then the front beam main body and the upper sheet metal part are grabbed and placed in sequence through a worker or a mechanical arm, and finally the three parts are welded together. During actual production, often because there is the deviation in the locating place of the lower sheet metal component of material loading station, lead to the manipulator can't place sheet metal component accuracy down on the board, lead to having the error in the follow-up welding process, influence preceding sub vehicle frame front beam's overall quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a front subframe front cross beam welding and positioning assembly, which can solve the problem of welding errors caused by the fact that lower sheet metal parts cannot be accurately placed in the traditional welding production process.

The utility model provides a welding and positioning assembly for a front cross beam of a front auxiliary frame, wherein the front cross beam of the front auxiliary frame comprises a front cross beam main body, a lower sheet metal part and an upper sheet metal part, the front cross beam main body is positioned between the lower sheet metal part and the upper sheet metal part, the side edge of the lower sheet metal part and the side edge of the upper sheet metal part are both provided with flanges, and the welding and positioning assembly for the front cross beam of the front auxiliary frame comprises: a frame; the pre-positioning mechanism is arranged on the rack and comprises a first press-fitting component and a positioning inspection component which are matched with the lower sheet metal part; and the fixing mechanism is arranged on the rack, is positioned on one side of the pre-positioning mechanism, and comprises a first clamping assembly for fixing the front cross beam main body and a second clamping assembly for holding the lower sheet metal part and the upper sheet metal part.

According to the welding and positioning assembly for the front cross beam of the front subframe, the first press-fitting component comprises a first pressing frame, a first pressing cylinder, a first lower pressing block, a first upper pressing block, a second pressing frame, a second pressing cylinder, a second lower pressing block and a second upper pressing block; the frame is arranged in to first compressing tightly the frame, first briquetting all sets up on first compressing tightly the frame with first cylinder that compresses tightly, the first output that compresses tightly the cylinder of connecting of briquetting, and the briquetting is located the top of first briquetting on the first, the frame is arranged in to second compressing tightly the frame, and second compresses tightly the frame and set up with first compressing tightly frame interval, the briquetting all sets up on the second compresses tightly the frame with the second cylinder under the second, the briquetting is connected the second and is compressed tightly the output of cylinder on the second, and the briquetting is located the top of briquetting under the second on the second, the top of briquetting all is provided with first locating pin post under first briquetting and the second.

According to the front subframe front beam welding and positioning assembly, the positioning detection assembly comprises a detection frame, an infrared receiving and transmitting piece, a light source reflection plate, a pull rod frame and a reflection plate cylinder, the detection frame is arranged on a rack, the infrared receiving and transmitting piece and the reflection plate cylinder are arranged on the detection frame, the light source reflection plate is arranged above the infrared receiving and transmitting piece, the middle of the pull rod frame is hinged with the detection frame, one end of the pull rod frame is connected with the light source reflection plate, and the other end of the pull rod frame is hinged with the output end of the reflection plate cylinder.

According to the welding and positioning assembly for the front cross beam of the front subframe, the first clamping assembly comprises a first support, a first air cylinder, a first lower clamping block and a first upper clamping block, the first support is arranged on the frame, the first lower clamping block and the first air cylinder are both arranged on the first support, the first upper clamping block is connected with the output end of the first air cylinder, and the first upper clamping block is positioned above the first lower clamping block.

According to the welding and positioning assembly for the front cross beam of the front auxiliary frame, the material bearing component comprises a first bearing cylinder, a bearing bracket, a second bearing cylinder, a pull rod bracket and a bearing sheet, the first bearing cylinder is arranged on the rack, the bearing bracket is arranged at the output end of the first bearing cylinder, the second bearing cylinder is arranged on the bearing bracket, the middle part of the pull rod bracket is hinged with the bearing bracket, one end of the pull rod bracket is connected with the bearing sheet, and the other end of the pull rod bracket is hinged with the output end of the second bearing cylinder.

According to the welding and positioning assembly for the front cross beam of the front subframe, the second clamping component comprises: the first clamping structure comprises a second support, a second air cylinder, a third air cylinder, a second lower clamping block, a third lower clamping block and a second upper clamping block, the second support is arranged on the rack, the second air cylinder and the third air cylinder are arranged on the second support, the second lower clamping block is arranged on the second support, the third lower clamping block is connected with the output end of the second air cylinder, the second upper clamping block is connected with the output end of the third air cylinder, and second positioning pins are arranged on the third lower clamping block and the second upper clamping block; the second clamping mechanism comprises a third support, a fourth air cylinder, an upper clamping frame and a lower clamping frame, the third support is arranged on the machine frame, the fourth air cylinder and the lower clamping frame are both arranged on the third support, the upper clamping frame is connected with the output end of the fourth air cylinder, two third upper clamping blocks are arranged on the lower side of the upper clamping frame, two fourth lower clamping blocks are arranged on the upper side of the lower clamping frame, and the third upper clamping blocks and the fourth lower clamping blocks are arranged in a one-to-one correspondence manner; the third clamping structure comprises a fourth support, a fifth air cylinder, a sixth air cylinder, a fifth lower clamping block, a sixth lower clamping block and a fourth upper clamping block, the fourth support is arranged on the rack, the fifth air cylinder and the sixth air cylinder are arranged on the fourth support, the fifth lower clamping block is arranged on the fourth support, the sixth lower clamping block is connected with the output end of the fifth air cylinder, the fourth upper clamping block is connected with the output end of the sixth air cylinder, and third positioning pins are arranged on the sixth lower clamping block and the fourth upper clamping block.

According to the welding and positioning assembly for the front cross beam of the front auxiliary frame, the two groups of pre-positioning mechanisms are arranged, and the two groups of pre-positioning mechanisms are symmetrically distributed on two sides of the fixing mechanism.

Has the advantages that: before welding a lower sheet metal part of a front cross beam of the front subframe, placing a front cross beam main body in a fixing mechanism, and clamping and fixing the front cross beam main body through a first clamping assembly and a material bearing assembly of the fixing mechanism; the lower sheet metal part to be welded is placed in a pre-positioning mechanism, the lower sheet metal part is clamped and fixed through a first press-fitting assembly, and the placing position is determined through a positioning inspection assembly, so that accurate positioning is guaranteed; when needing to weld, lower sheet metal component to fixed establishment after the locating is grabbed and pressed from both sides through robotic arm to press from both sides the dress subassembly through the second and fix last sheet metal component and lower sheet metal component, make things convenient for follow-up weldment work, avoided because of the welding error that the sheet metal component can't accurately place down and cause.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic structural view of a front cross member of a front subframe according to the present invention;

FIG. 2 is a top view of the front subframe front cross member weld locating assembly of the present invention;

FIG. 3 is a schematic diagram showing a positional relationship between a pre-positioning mechanism and a lower sheet metal part in the front subframe front beam welding and positioning assembly of the utility model;

FIG. 4 is a schematic structural view of a pre-positioning mechanism in the front subframe front cross beam welding and positioning assembly of the present invention;

FIG. 5 is a schematic structural view of a first clamping component of a fixing mechanism in the front cross beam welding and positioning assembly of the front subframe of the utility model;

FIG. 6 is a schematic structural view of a material bearing component of a fixing mechanism in the front cross beam welding and positioning assembly of the front subframe of the utility model;

FIG. 7 is a schematic structural view of a first clamping structure in a second clamping component of a fixing mechanism in the front subframe front cross beam welding and positioning assembly according to the present invention;

FIG. 8 is a schematic structural view of a second clamping structure in a second clamping assembly of the fixing mechanism in the front subframe front cross beam welding and positioning assembly according to the present invention;

fig. 9 is a schematic structural view of a third clamping structure in the second clamping component of the fixing mechanism in the front subframe front cross beam welding and positioning assembly according to the utility model.

In the figure: 1. front subframe front beam, 11 front beam body, 12 lower sheet metal part, 13 upper sheet metal part, 2 frame, 3 prepositioning mechanism, 31 first press mounting assembly, 3101 first press frame, 3102 first press cylinder, 3103 first lower pressing block, 3104 first upper pressing block, 3105 second press mounting frame, 3106 second press pressing cylinder, 3107 second lower pressing block, 3108 second upper pressing block, 3109 first positioning pin, 32 positioning checking assembly, 3201 detection frame, 3202 infrared transceiver, 3203 light source reflection plate, 3204 pull rod frame, 3205 reflection plate cylinder, 4 fixing mechanism, 41 first clamping assembly, 4101 first support, 4102 first cylinder, 4103 first clamping block, 4104 first upper clamping block, 42 material supporting assembly, 4201 first supporting cylinder, 4202 first supporting bracket, 4203 second supporting bracket, 4204 supporting bracket, 4205. the clamping mechanism comprises a bearing sheet, 43, a second clamping assembly, 431, a first clamping structure, 4311, a second support, 4312, a second air cylinder, 4313, a third air cylinder, 4314, a second lower clamping block, 4315, a third lower clamping block, 4316, a second upper clamping block, 4317, a second positioning pin, 432, a second clamping structure, 4321, a third support, 4322, a fourth air cylinder, 4323, an upper clamping frame, 4324, a lower clamping frame, 4325, a third upper clamping block, 4326, a fourth lower clamping block, 433, a third clamping structure, 4331, a fourth support, 4332, a fifth air cylinder, 4333, a sixth air cylinder, 4334, a fifth lower clamping block, 4335, a sixth lower clamping block, 4336, a fourth upper clamping block, 4337 and a third positioning pin.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the orientation description, such as the upper, lower, front, rear, left, right, etc., is the orientation or positional relationship based on the drawings, and is only for convenience of description and simplification of description, and does 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, greater than, less than, exceeding, etc. are understood as excluding the present numbers, and the above, below, inside, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, a structural schematic diagram of a front subframe front beam is provided, the front subframe front beam 1 comprises a front beam main body 11, a lower sheet metal part 12 and an upper sheet metal part 13, the front beam main body 11 is located between the lower sheet metal part 12 and the upper sheet metal part 13, and the lateral edge of the lower sheet metal part 12 and the lateral edge of the upper sheet metal part 13 are both provided with flanges.

Referring to fig. 2-9, a front subframe front cross beam welding position assembly is provided, comprising: a frame 2; the pre-positioning mechanism 3 is arranged on the rack 2, and the pre-positioning mechanism 3 comprises a first press fitting component 31 and a positioning inspection component 32 which are matched with the lower sheet metal part 12; the fixing mechanism 4 is disposed on the frame 2 and located at one side of the pre-positioning mechanism 3, and includes a first clamping assembly 41 and a material bearing assembly 42 for fixing the front beam body 11, and a second clamping assembly 43 for clamping the lower sheet metal part 12 and the upper sheet metal part 13.

Before welding the lower sheet metal part 12 of the front cross beam of the front subframe, the front cross beam main body 11 is placed in the fixing mechanism 4, and the front cross beam main body 11 is clamped and fixed through a first clamping assembly 41 and a material bearing assembly 42 of the fixing mechanism 4; the lower sheet metal part 12 to be welded is placed in the pre-positioning mechanism 3, the lower sheet metal part 12 is clamped and fixed through the first press-fitting assembly 31, and the placing position is determined through the positioning inspection assembly 32, so that accurate positioning is guaranteed; when needing to weld, lower sheet metal component 12 to fixed establishment 4 after the location is grabbed and pressed from both sides through robotic arm to press from both sides dress subassembly 43 through the second and fix last sheet metal component 13 and lower sheet metal component 12, make things convenient for follow-up weldment work, avoided because of the welding error that sheet metal component 12 can't accurately place down and cause.

Preferably, the first press-fitting assembly 31 in the pre-positioning mechanism 3 includes a first press frame 3101, a first press cylinder 3102, a first lower press block 3103, a first upper press block 3104, a second press frame 3105, a second press cylinder 3106, a second lower press block 3107, and a second upper press block 3108; the first pressing frame 3101 is arranged on the frame 2, the first lower pressing block 3103 and the first pressing cylinder 3102 are both arranged on the first pressing frame 3101, the first upper pressing block 3104 is connected with the output end of the first pressing cylinder 3102, the first upper pressing block 3104 is arranged above the first lower pressing block 3103, the second pressing frame 3105 is arranged on the frame 2, the second pressing frame 3105 and the first pressing frame 3101 are arranged at intervals, the second lower pressing block 3107 and the second pressing cylinder 3106 are both arranged on the second pressing frame 3105, the second upper pressing block 3108 is connected with the output end of the second pressing cylinder 3106, the second upper pressing block 3108 is arranged above the second lower pressing block 3107, and the first positioning pin 3109 is arranged on the top of the first lower pressing block 3103 and the second lower pressing block 3107. When the lower sheet metal piece is pre-positioned, the lower sheet metal piece 12 is arranged on the first lower pressing block 3103 and the second lower pressing block 3107, and the first positioning pin 3109 arranged on the first lower pressing block 3103 and the second lower pressing block 3107 is matched with the hole on the lower sheet metal piece 12, so that the lower sheet metal piece 12 is fixed and positioned. The first pressing cylinder 3102 drives the first upper pressing block 3104 to rotate, and the first upper pressing block 3104 and the first lower pressing block 3103 are matched to press and fix the lower sheet metal part 12; the second pressing cylinder 3106 drives the second upper pressing block 3108 to rotate, and the second upper pressing block 3108 and the second lower pressing block 3107 are matched to press and fix the lower sheet metal part 12.

The positioning detection assembly 32 comprises a detection frame 3201, an infrared transceiver 3202, a light source reflection plate 3203, a pull rod frame 3204 and a reflection plate cylinder 3205, the detection frame 3201 is arranged on the frame 2, the detection frame 3201, the first pressing frame 3101 and the second pressing frame 3105 are arranged at intervals, the infrared transceiver 3202 and the reflection plate cylinder 3205 are arranged on the detection frame 3201, the light source reflection plate 3203 is arranged above the infrared transceiver 3202, and a hole matched with the infrared transceiver 3202 is arranged between the infrared transceiver 3202 and the light source reflection plate 3203. The middle of the tie bar frame 3204 is hinged to the detection frame 3201, so that the tie bar frame 3204, the reflective plate cylinder 3205 and the detection frame 3201 form a four-bar linkage. One end of the pull rod frame 3204 is connected to the light source reflection plate 3203, and the other end is hinged to the output end of the reflection plate cylinder 3205. When the lower sheet metal part 12 is fixed to the first press-fitting assembly 31, whether the positioning is accurate or not is detected by the positioning monitoring assembly 32. The infrared transceiving component 3202 emits infrared rays, the infrared transceiving component 3202 irradiates the light source reflecting plate 3203 through the through holes in the lower sheet metal part 12 and then reflects the infrared transceiving component 3202, and whether the fixing and positioning of the lower sheet metal part 12 are accurate or not is detected in the above mode.

The first press-fitting assembly 31 is matched with the positioning monitoring assembly 32, so that the lower sheet metal part 12 on the pre-positioning mechanism 3 is accurately positioned and fixed.

In the fixing mechanism 4 of the front subframe front beam welding positioning assembly, the first clamping component 41 comprises a first support 4101, a first cylinder 4102, a first lower clamping block 4103 and a first upper clamping block 4104, the first support 4101 is arranged on the frame 2, the first lower clamping block 4103 and the first cylinder 4102 are both arranged on the first support 4101, the first upper clamping block 4104 is connected with the output end of the first cylinder 4102, and the first upper clamping block 4104 is positioned above the first lower clamping block 4103. The first clamping assemblies 41 are arranged in two groups and arranged on the frame 2 at intervals, and provide fixing for the front cross beam main body 11.

The support assembly 42 includes a first support cylinder 4201, a support bracket 4202, a second support cylinder 4203, a tie bar bracket 4204, and a support tab 4205. Preferably, in the present embodiment, the material holding assembly 42 and the first clamping assembly 41 are respectively disposed on two sides of the front cross beam body 11. The first support cylinder 4201 is disposed on the frame 2, the support bracket 4202 is disposed on an output end of the first support cylinder 4201, the second support cylinder 4203 is disposed on the support bracket 4202, and the middle portion of the tie bar bracket 4204 is hinged to the support bracket 4202, such that the support bracket 4202, the second support cylinder 4203 and the tie bar bracket 4204 form a four-bar linkage structure, one end of the tie bar bracket 4204 is connected to the support plate 4205, and the other end is hinged to an output end of the second support cylinder 4203. In use, the front beam body 11 is placed on the support tabs 4205 and the support member 42 provides support to the front beam body 11 from below. The material bearing component 42 is matched with the first clamping component 41 to provide clamping and fixing for the front cross beam main body 11.

The second clamping assembly 43 is used for positioning and fixing the lower sheet metal part 12 and the upper sheet metal part 13. The second clamping assembly 43 includes a first clamping structure 431, a second clamping mechanism 432 and a third clamping structure 433, and the first clamping structure 431, the second clamping mechanism 432 and the third clamping structure 433 are sequentially arranged on the frame 2 at intervals.

The first clamping structure 431 includes a second support 4311, a second cylinder 4312, a third cylinder 4313, a second lower clamping block 4314, a third lower clamping block 4315 and a second upper clamping block 4316, the second support 4311 is disposed on the frame 2, the second cylinder 4312 and the third cylinder 4313 are disposed on the second support 4311, the second lower clamping block 4314 is disposed on the second support 4311, the third lower clamping block 4315 is connected to an output end of the second cylinder 4312, the second upper clamping block 4316 is connected to an output end of the third cylinder 4313, and the third lower clamping block 4315 and the second upper clamping block 4316 are both provided with second positioning pins 4317. When the sheet metal part clamping device is used, the second air cylinder 4312 controls the second positioning pin 4317 on the third lower clamping block 4315 to ascend, the second positioning pin 4317 is matched with a hole in a sheet metal part to provide positioning, and the lower sheet metal part 12 and the upper sheet metal part 13 are clamped between the second lower clamping block 4314 and the second upper clamping block 4316.

The second clamping mechanism 432 comprises a third support 4321, a fourth cylinder 4322, an upper clamping frame 4323 and a lower clamping frame 4324, the third support 4321 is arranged on the frame 2, the fourth cylinder 4322 and the lower clamping frame 4324 are both arranged on the third support 4321, the upper clamping frame 4323 is connected with the output end of the fourth cylinder 4322, two third upper clamping blocks 4325 are arranged on the lower side of the upper clamping frame 4323, two fourth lower clamping blocks 4326 are arranged on the upper side of the lower clamping frame 4324, and the third upper clamping blocks 4325 and the fourth lower clamping blocks 4326 are arranged up and down in a one-to-one correspondence manner; the end parts of the third upper clamping block 4325 and the fourth lower clamping block 4326 are matched to clamp the side edge of the lower sheet metal part 12 and the flanging arranged on the side edge of the upper sheet metal part 13.

The third clamping structure 433 includes a fourth support 4331, a fifth cylinder 4332, a sixth cylinder 4333, a fifth lower clamping block 4334, a sixth lower clamping block 4335, and a fourth upper clamping block 4336, the fourth support 4331 is disposed on the frame 2, the fifth cylinder 4332 and the sixth cylinder 4333 are disposed on the fourth support 4331, the fifth lower clamping block 4334 is disposed on the fourth support 4331, the sixth lower clamping block 4335 is connected to an output end of the fifth cylinder 4332, the fourth upper clamping block 4336 is connected to an output end of the sixth cylinder 4333, and the sixth lower clamping block 4335 and the fourth upper clamping block 4336 are both provided with third positioning pins 4337. When the sheet metal part clamping device is used, the fifth air cylinder 4332 controls the third positioning pin 4337 on the sixth lower clamping block 4335 to ascend, the third positioning pin 4337 is matched with the hole in the sheet metal part to provide positioning, and the lower sheet metal part 12 and the upper sheet metal part 13 are clamped between the bottom four upper clamping blocks and the fifth lower clamping block 4334.

In the present embodiment, preferably, the pre-positioning mechanisms 3 are provided in two sets, and the two sets of pre-positioning mechanisms 3 are symmetrically distributed on two sides of the fixing mechanism 4. The pre-positioning mechanisms 3 on the two sides of the fixing mechanism 4 are used for respectively positioning and fixing the upper sheet metal part 13 and the lower sheet metal part 12 on the two sides of the front beam main body 11, and the efficiency is improved.

The utility model provides a welding and positioning assembly for a front cross beam of a front subframe, wherein before welding a lower sheet metal part 12 of the front cross beam of the front subframe, a front cross beam main body 11 is arranged on a fixing mechanism 4, and the front cross beam main body 11 is clamped and fixed through a first clamping component 41 and a material bearing component 42 of the fixing mechanism 4; the lower sheet metal part 12 to be welded is placed in the pre-positioning mechanism 3, the lower sheet metal part 12 is clamped and fixed through the first press-fitting assembly 31, and the placing position is determined through the positioning inspection assembly 32, so that accurate positioning is guaranteed; when needing to weld, lower sheet metal component 12 to fixed establishment 4 after the location is grabbed and pressed from both sides through robotic arm to press from both sides dress subassembly 43 through the second and fix last sheet metal component 13 and lower sheet metal component 12, make things convenient for follow-up weldment work, avoided because of the welding error that sheet metal component 12 can't accurately place down and cause.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a preceding sub vehicle frame front beam welding position assembly, preceding sub vehicle frame front beam (1) includes front beam main part (11), sheet metal component (12) and last sheet metal component (13) down, front beam main part (11) are located down between sheet metal component (12) and last sheet metal component (13), the lateral margin of sheet metal component (12) and the lateral margin of last sheet metal component (13) all are provided with the turn-ups down, its characterized in that, preceding sub vehicle frame front beam welding position assembly includes:

a frame (2);

the pre-positioning mechanism (3) is arranged on the rack (2), and the pre-positioning mechanism (3) comprises a first press-fitting component (31) and a positioning inspection component (32) which are matched with the lower sheet metal part (12);

the fixing mechanism (4) is arranged on the rack (2), is positioned on one side of the pre-positioning mechanism (3), and comprises a first clamping assembly (41) and a material bearing assembly (42) which are used for fixing the front cross beam main body (11), and a second clamping assembly (43) which is used for clamping the lower sheet metal part (12) and the upper sheet metal part (13).

2. The welding and positioning assembly for the front cross beam of the front subframe according to claim 1, wherein the first press-fitting assembly (31) comprises a first pressing frame (3101), a first pressing cylinder (3102), a first lower pressing block (3103), a first upper pressing block (3104), a second pressing frame (3105), a second pressing cylinder (3106), a second lower pressing block (3107) and a second upper pressing block (3108); the first pressing frame (3101) is arranged on the frame (2), the first lower pressing block (3103) and the first pressing cylinder (3102) are both arranged on the first pressing frame (3101), the first upper pressing block (3104) is connected with the output end of the first pressing cylinder (3102), the first upper pressing block (3104) is positioned above the first lower pressing block (3103), the second pressing frame (3105) is arranged on the frame (2), the second pressing frame (3105) and the first pressing frame (3101) are arranged at intervals, the second lower pressing block (3107) and the second pressing cylinder (3106) are both arranged on the second pressing frame (3105), the second upper pressing block (3108) is connected with the output end of the second pressing cylinder (3106), and the second upper pressing block (3108) is positioned above the second lower pressing block (3107), and the tops of the first lower pressing block (3103) and the second lower pressing block (3107) are both provided with a first positioning pin (3109).

3. The front subframe front cross beam welding and positioning assembly of claim 1, wherein the positioning inspection assembly (32) comprises a detection frame (3201), an infrared transceiver (3202), a light source reflection plate (3203), a pull rod frame (3204) and a reflection plate cylinder (3205), the detection frame (3201) is arranged on the frame (2), the infrared transceiver (3202) and the reflection plate cylinder (3205) are arranged on the detection frame (3201), the light source reflection plate (3203) is arranged above the infrared transceiver (3202), the middle of the pull rod frame (3204) is hinged to the detection frame (3201), one end of the pull rod frame (3204) is connected with the light source reflection plate (3203), and the other end of the pull rod frame (3204) is hinged to the output end of the reflection plate cylinder (3205).

4. The welding and positioning assembly of the front cross beam of the front subframe according to claim 1, wherein the first clamping assembly (41) comprises a first bracket (4101), a first cylinder (4102), a first lower clamping block (4103) and a first upper clamping block (4104), the first bracket (4101) is arranged on the frame (2), the first lower clamping block (4103) and the first cylinder (4102) are both arranged on the first bracket (4101), the first upper clamping block (4104) is connected with the output end of the first cylinder (4102), and the first upper clamping block (4104) is positioned above the first lower clamping block (4103).

5. The welding and positioning assembly for the front cross beam of the front subframe according to claim 1, wherein the material supporting component (42) comprises a first supporting cylinder (4201), a supporting bracket (4202), a second supporting cylinder (4203), a tie rod bracket (4204) and a supporting sheet (4205), the first supporting cylinder (4201) is arranged on the frame (2), the supporting bracket (4202) is arranged at the output end of the first supporting cylinder (4201), the second supporting cylinder (4203) is arranged on the supporting bracket (4202), the middle of the tie rod bracket (4204) is hinged to the supporting bracket (4202), one end of the tie rod bracket (4204) is connected with the supporting sheet (4205), and the other end of the tie rod bracket (4204) is hinged to the output end of the second supporting cylinder (4203).

6. The front subframe front cross member welding and positioning assembly as set forth in claim 1, wherein said second clamping assembly (43) comprises:

the clamping device comprises a first clamping structure (431), wherein the first clamping structure (431) comprises a second support (4311), a second air cylinder (4312), a third air cylinder (4313), a second lower clamping block (4314), a third lower clamping block (4315) and a second upper clamping block (4316), the second support (4311) is arranged on a rack (2), the second air cylinder (4312) and the third air cylinder (4313) are arranged on the second support (4311), the second lower clamping block (4314) is arranged on the second support (4311), the third lower clamping block (4315) is connected with the output end of the second air cylinder (4312), the second upper clamping block (4316) is connected with the output end of the third air cylinder (4313), and second positioning pin columns (4317) are arranged on the third lower clamping block (4315) and the second upper clamping block (4316);

the second clamping mechanism (432), the second clamping mechanism (432) comprises a third support (4321), a fourth cylinder (4322), an upper clamping frame (4323) and a lower clamping frame (4324), the third support (4321) is arranged on the rack (2), the fourth cylinder (4322) and the lower clamping frame (4324) are both arranged on the third support (4321), the upper clamping frame (4323) is connected with the output end of the fourth cylinder (4322), two third upper clamping blocks (4325) are arranged on the lower side of the upper clamping frame (4323), two fourth lower clamping blocks (4326) are arranged on the upper side of the lower clamping frame (4324), and the third upper clamping blocks (4325) and the fourth lower clamping blocks (4326) are arranged up and down in a one-to-one correspondence;

the third clamping structure (433), the third clamping structure (433) includes a fourth support (4331), a fifth cylinder (4332), a sixth cylinder (4333), a fifth lower clamping block (4334), a sixth lower clamping block (4335) and a fourth upper clamping block (4336), the fourth support (4331) is disposed on the frame (2), the fifth cylinder (4332) and the sixth cylinder (4333) are disposed on the fourth support (4331), the fifth lower clamping block (4334) is disposed on the fourth support (4331), the sixth lower clamping block (4335) is connected to an output end of the fifth cylinder (4332), the fourth upper clamping block (4336) is connected to an output end of the sixth cylinder (4333), and third positioning pins (4337) are disposed on the sixth lower clamping block (4335) and the fourth upper clamping block (4336).

7. The front subframe front cross beam welding and positioning assembly of claim 1, wherein the pre-positioning mechanisms (3) are arranged in two groups, and the two groups of pre-positioning mechanisms (3) are symmetrically distributed on two sides of the fixing mechanism (4).