HUD support welding tool

Abstract

The invention relates to the technical field of welding tools, in particular to an HUD support welding tool which is used for conducting limiting installation on a support body, and the support body comprises a lower support, a right support, a left support, an upper support and an auxiliary support. The welding tool comprises a bottom plate, a first telescopic air cylinder is arranged below the bottom plate, and the output end of the first telescopic air cylinder faces upwards and is fixed to the lower support in a limiting mode. Compared with a traditional method, according to the technical scheme, a plurality of scattered supports can be accurately positioned and fixed, on the premise that welding operation is not affected, it is guaranteed that the supports are in close contact before welding, gaps between the supports are small through an extrusion structure, a clamping structure and other structures, and the welding quality can be improved; due to the fact that the interiors of the supports forming the support body are all hollowed out, when the supports are limited, the possibility that deformation exists when weak positions of the supports are limited is considered, and it is guaranteed that the support body does not deform after limiting and welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding tooling, and in particular to a HUD bracket welding tooling. Background Art

[0002] In-vehicle HUD has gradually become an essential device for vehicles. HUD uses the principle of optical reflection to project navigation, vehicle speed, oil pressure, tire pressure and other system information onto the front windshield. Generally, the HUD module is positioned on the instrument crossbeam sheet metal bracket through a bracket, and the HUD bracket needs to be welded during the production and processing process, and the welding accuracy requirements are high.

[0003] The patent document with patent announcement number: CN108213806A discloses a bracket welding clamping tool and a positioning clamping device thereof, the positioning clamping device comprises a supporting structure supporting the bracket to be welded extending in the front-back direction from the vertical direction and a limiting structure limiting the movement of the bracket in the left and right directions, the supporting structure and the limiting structure are installed on a support. The positioning clamping device is used to position and clamp the bracket, the supporting structure supporting the bracket in the vertical direction and the limiting structure limiting the movement of the bracket in the left and right directions accurately position the bracket, and ensure the welding accuracy requirements.

[0004] The bracket itself has a limited range of movement in the above scheme, so it is relatively simple to limit the position. However, for the HUD bracket, the complete HUD bracket includes left and right brackets and upper and lower connecting brackets. When limiting the position, it is necessary not only to accurately position the above four scattered brackets, but also to minimize the gaps between the brackets as much as possible to improve the welding quality, which is relatively difficult. Summary of the invention

[0005] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a HUD bracket welding tool, which solves the problem that the positioning accuracy and welding quality need to be improved in the current process of assembling and welding multiple brackets in a scattered state into a complete HUD bracket.

[0006] The object of the present invention can be achieved by the following technical solutions: a HUD bracket welding tool, used for limiting the installation of the bracket body, the bracket body includes a lower bracket, a right bracket, a left bracket, an upper bracket and an auxiliary bracket; the welding tool includes a bottom plate, a telescopic cylinder 1 is arranged below the bottom plate, the output end of the telescopic cylinder 1 faces upward and is fixed with the lower bracket; a telescopic cylinder 2 is arranged above the bottom plate at the position corresponding to the right bracket and the left bracket, the output end of the telescopic cylinder 2 is provided with a slide rail and a slide seat, the slide seat is on the telescopic cylinder Under the action of the second output end, it approaches or moves away from the right bracket or the left bracket; wherein, a fixed seat and a telescopic cylinder three are arranged on the sliding seat corresponding to the right bracket, and the fixed seat abuts against the outer wall of the right bracket, and the output end of the telescopic cylinder three is connected with a pressure arm one, and the pressure arm one abuts against the inner wall of the right bracket; a telescopic cylinder four and a tightening block are arranged on the sliding seat corresponding to the left bracket, and the tightening block abuts against the outer wall of the left bracket, and the output end of the telescopic cylinder four is connected with a pressure arm two, and the pressure arm two abuts against the inner wall of the left bracket.

[0007] Furthermore, the lower bracket, the right bracket, the left bracket and the upper bracket form a rectangular structure after being assembled, wherein the upper bracket is a circular structure, the interiors of the lower bracket, the right bracket and the left bracket are all hollowed out, and the outer walls of the three brackets are provided with at least one opening connected to the interior thereof; the lower ends of the right bracket and the left bracket extend into the interior of the lower bracket, and the upper ends of the right bracket and the left bracket are arc-cut at the positions where they contact the upper bracket.

[0008] Furthermore, a connecting seat is arranged between the telescopic cylinder 1 and the base plate, and the connecting seat includes a plurality of L-shaped supports, and the plurality of L-shaped supports are connected by screws, and the output end of the telescopic cylinder 1 is connected to a limit pin 1, and the limit pin 1 is detachably connected to the lower bracket.

[0009] Furthermore, the slide rail is installed on the top surface of the base plate, the slide seat is slidably connected to the slide rail, and the output end of the second telescopic cylinder is fixedly connected to the slide seat.

[0010] Furthermore, the fixed seat and the telescopic cylinder three move toward the right bracket under the drive of the telescopic cylinder two until the fixed seat and the outer wall clearance of the right bracket are matched; a fixed block one is also fixedly arranged on the outside of the telescopic cylinder three, and the pressure arm one is in a "T"-shaped structure, the wider end of the pressure arm one is rotatably connected to the output end of the telescopic cylinder two, and the other wider end of the pressure arm one is rotatably connected to the fixed block one, and a rubber pad is arranged at the position of the narrower end of the pressure arm one facing the inner wall of the right bracket.

[0011] Furthermore, the clamping block and the telescopic cylinder four move toward the left bracket under the drive of the telescopic cylinder two until the clamping block abuts against the outer wall of the left bracket; a fixed block two is also fixedly provided on the outside of the telescopic cylinder four, the middle part of the pressure arm two is rotatably connected to the fixed block two, the tail part of the pressure arm two is rotatably connected to the output end of the telescopic cylinder four, the head part of the pressure arm two is in a "U"-shaped structure and abuts against the inner wall of the left bracket after rotating a certain angle.

[0012] Furthermore, a manual limit assembly is also provided on the sliding seat corresponding to the left bracket, and the manual limit assembly includes a positioning sleeve, a sleeve rod, a pull rod and a rotating seat installed at the bottom of the positioning sleeve, the sleeve rod is slidably sleeved with the positioning sleeve, and one end of the sleeve rod facing the left bracket is connected to a limit pin 2, and the limit pin 2 is detachably connected to the left bracket; the lower end of the pull rod is rotatably connected to the rotating seat, and the middle part of the pull rod is rotatably connected to the end of the sleeve rod facing away from the left bracket.

[0013] Furthermore, there is an angle between the upper end and the middle part of the pull rod.

[0014] Furthermore, a clamping assembly is arranged above the bottom plate at a position corresponding to the upper bracket, and the clamping assembly includes a base and a vertical pole installed above the base; the top of the vertical pole is designed in an L-shape, and a rack and a rotating column are arranged on the top of the vertical pole, and a gear is arranged on the outer sleeve of the rotating column, and the gear is meshed and connected with the rack for transmission, and the rack can be displaced upward or downward in a vertical direction according to the different rotation directions of the gear, and the lower end of the rack is also detachably connected with a pressure block.

[0015] Furthermore, a slide groove is provided through the top of the vertical pole corresponding to the sliding position of the rack, a sealing plate is detachably connected to the opening of the slide groove, the rotating column horizontally passes through the top of the vertical pole, the gear rotates in the slide groove, and one end of the rotating column extending outside the vertical pole is connected to a turning handle.

[0016] Beneficial effects of the present invention: Compared with traditional methods, the present technical solution can accurately position and fix multiple scattered brackets. Under the premise of not affecting the welding operation, it ensures that each bracket maintains close contact before welding through extrusion, clamping and other structures, and the gap between each other is small, which is beneficial to improving the welding quality; at the same time, since the interiors of the multiple brackets that constitute the bracket body in the present solution are all hollowed out, the possibility of deformation of the weak positions of the bracket is also taken into account when limiting them. Therefore, when limiting, the bracket is fixed by applying pressure on both the front and back sides at the parts that are not easy to deform, ensuring that the bracket body is not deformed after limiting and welding, and does not affect subsequent processing and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a stereoscopic view of the present invention; Figure 2 It is the stereoscopic view of the support body in the present invention. Figure 1 ; Figure 3 It is the stereoscopic view of the support body in the present invention. Figure 2 ; Figure 4 It is a three-dimensional view of the telescopic cylinder 1 and the bottom plate in the present invention; Figure 5 The present invention is a three-dimensional view of the telescopic cylinder 2, the fixed seat, the telescopic cylinder 3 and the bottom plate. Figure 1 ; Figure 6 The present invention is a three-dimensional view of the telescopic cylinder 2, the fixed seat, the telescopic cylinder 3 and the bottom plate. Figure 2 ; Figure 7 is a three-dimensional view of the auxiliary bracket in the present invention; Figure 8 It is a three-dimensional view of the fixing seat and the right bracket in the present invention; Fig. 9 It is a three-dimensional view of the telescopic cylinder 2 and the positioning sleeve in the present invention; Fig.10 It is a three-dimensional view of the telescopic cylinder 2, the telescopic cylinder 4 and the bottom plate in the present invention; Fig.11 is a three-dimensional view of the pressing assembly of the present invention; Fig.12 It is a three-dimensional view of the neutral rod and the slideway of the present invention; Fig.13 It is a three-dimensional view of the rotating column in the present invention.

[0019] In the figure: 1, bracket body; 11, lower bracket; 12, right bracket; 13, left bracket; 14, upper bracket; 15, auxiliary bracket; 151, connecting block; 2, bottom plate; 3, telescopic cylinder 1; 31, limit pin 1; 32, connecting seat; 4, telescopic cylinder 2; 41, slide rail; 42, slide seat; 5, fixed seat; 51, locking ring; 52, locking column; 6, telescopic cylinder 3; 61, pressure arm 1; 62. Fixed block one; 7. Telescopic cylinder four; 71. Pressing arm two; 72. Fixed block two; 73. Clamping block; 8. Positioning sleeve; 81. Sleeve rod; 82. Limit pin two; 83. Rotating seat; 84. Pull rod; 9. Clamping assembly; 91. Base; 92. Vertical rod; 93. Rack; 931. Pressing block; 94. Rotating column; 941. Gear; 942. Turning handle; 95. Closing plate; 96. Slide groove. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, a HUD bracket welding tool is used to limit the installation of a bracket body 1, the bracket body 1 includes a lower bracket 11, a right bracket 12, a left bracket 13, an upper bracket 14 and an auxiliary bracket 15; the welding tool includes a bottom plate 2, a telescopic cylinder 3 is arranged below the bottom plate 2, the output end of the telescopic cylinder 3 faces upward and is fixed to the lower bracket 11; telescopic cylinders 4 are arranged above the bottom plate 2 at positions corresponding to the right bracket 12 and the left bracket 13, and the output end of the telescopic cylinder 4 is provided with a slide rail 41 and a slide seat 42, and the slide seat 42 approaches or moves away from the right bracket under the action of the output end of the telescopic cylinder 4. The left bracket 12 or the left bracket 13; wherein, a fixed seat 5 and a telescopic cylinder three 6 are arranged on the sliding seat 42 corresponding to the right bracket 12, and the fixed seat 5 and the telescopic cylinder three 6 are spaced apart with respect to the right bracket 12, and the fixed seat 5 abuts against the outer wall of the right bracket 12, and the output end of the telescopic cylinder three 6 is connected with a pressure arm one 61, and the pressure arm one 61 abuts against the inner wall of the right bracket 12; a telescopic cylinder four 7 and a tightening block 73 are arranged on the sliding seat 42 corresponding to the left bracket 13, and the tightening block 73 abuts against the outer wall of the left bracket 13, and the output end of the telescopic cylinder four 7 is connected with a pressure arm two 71, and the pressure arm two 71 abuts against the inner wall of the left bracket 13.

[0022] According to the above technical scheme, this technical scheme can accurately position and fix multiple scattered brackets. Under the premise of not affecting the welding operation, it ensures that each bracket maintains close contact before welding through extrusion, clamping and other structures, and the gap between them is small, which is conducive to improving the welding quality.

[0023] As an example, Figure 2 , Figure 3 As shown, the lower bracket 11, the right bracket 12, the left bracket 13 and the upper bracket 14 are assembled into a rectangular structure, wherein the upper bracket 14 is a circular structure, and the interiors of the lower bracket 11, the right bracket 12 and the left bracket 13 are all hollowed out, and the outer walls of the three are provided with at least one opening connected to the interior thereof.

[0024] The above scheme is further refined, the lower ends of the right bracket 12 and the left bracket 13 extend into the interior of the lower bracket 11 from the top opening of the lower bracket 11, and the two sides of the opening of the lower bracket 11 can limit the right bracket 12 and the left bracket 13 to prevent the right bracket 12 and the left bracket 13 from shaking significantly; and the upper ends of the right bracket 12 and the left bracket 13 are cut in an arc shape at the positions where they contact the upper bracket 14, so as to reduce the size of the weld during welding.

[0025] It should be noted that because the right bracket 12 and the left bracket 13 are both hollowed out and have openings, when they are fixed in position, if they are clamped directly from both sides of the opening, the clamping force will be large, which will cause the two sides of the opening to deform toward the middle, resulting in unstable fixation and product deformation defects. If the clamping force is small, the gap cannot be reduced as much as possible when the brackets are connected, and there is no way to reduce the weld. Therefore, the limiting methods of this scheme are also designed specifically for this structure.

[0026] As an example, Figure 1 , Figure 4 As shown, a connecting seat 32 is provided between the telescopic cylinder 3 and the base plate 2, and the connecting seat 32 includes a plurality of L-shaped supports, and the plurality of L-shaped supports are connected by screws. The output end of the telescopic cylinder 3 is connected to a limit pin 31. Before installing the lower bracket 11, the output end of the telescopic cylinder 3 is controlled to extend. At this time, the limit pin 31 rises to a fixed height, and the lower bracket 11 is pressed downward until the limit pin 31 is plugged into the through hole at the bottom of the lower bracket 11, thereby realizing reliable fixation of the lower bracket 11.

[0027] As an example, Figure 5 , Figure 6 As shown, the slide rail 41 is installed on the top surface of the base plate 2, the slide seat 42 is slidably connected to the slide rail 41, and the output end of the telescopic cylinder 24 is fixedly connected to the slide seat 42.

[0028] When limiting the right bracket 12, after the telescopic cylinder 2 4 at the corresponding right bracket 12 is extended, the slide seat 42 here moves toward the right bracket 12 under the push of the output end of the telescopic cylinder 2 4, and the fixed seat 5 and the telescopic cylinder 3 6 move toward the right bracket 12 synchronously until the fixed seat 5 and the right bracket 12 are on the same horizontal line, and the outer wall gap of the fixed seat 5 and the right bracket 12 is matched, at this time, the right bracket 12 can be fixed in the next step.

[0029] The above scheme is further refined. A fixed block 62 is fixedly arranged outside the telescopic cylinder 3 6. The pressure arm 61 is in a "T"-shaped structure. The wider end of the pressure arm 61 has two ends. Among them, the wider end of the pressure arm 61 is rotatably connected to the output end of the telescopic cylinder 2 4, and the other wider end of the pressure arm 61 is rotatably connected to the fixed block 62. A rubber pad is arranged at the position of the narrower end of the pressure arm 61 facing the inner wall of the right bracket 12. After the clearance between the fixing seat 5 and the outer wall of the right bracket 12 is matched, the output of the telescopic cylinder 3 6 is controlled. The end extends out, and at this time, the pressure arm 61 swings about the position where it is rotatably connected to the fixing block 62, until the position where the pressure arm 61 is installed with the rubber pad extends into the interior of the right bracket 12 from the opening thereof, so as to achieve the purpose of the rubber pad abutting against the inner wall of the right bracket 12. At this time, as the pressure arm 61 swings, the rubber pad and the fixing seat 5 tightly clamp the right bracket 12, and because the clamping direction is opposite to the opening, the clamping position is not easy to deform, so that the right bracket 12 can be accurately limited, which is convenient for welding the connection between the right bracket 12 and the lower bracket 11.

[0030] It should be noted that, since the lower bracket 11 itself also has an opening, when the right bracket 12 is limited and fixed, the two sides of the opening of the lower bracket 11 also play a limiting role to prevent the right bracket 12 from moving over a large range during the extrusion process.

[0031] like Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, as an example, an auxiliary bracket 15 is also provided at the opening of the right bracket 12. When installing and positioning the auxiliary bracket 15, a locking column 52 is provided in the middle of the fixing seat 5, and the locking column 52 is provided with an external thread on the outer wall of one end of the locking column 52 facing the right bracket 12. A locking ring 51 is provided at one end of the locking column 52 extending out of the fixing seat 5. When the fixing seat 5 and the outer wall clearance of the right bracket 12 are matched, the auxiliary bracket 15 is placed at the opening of the right bracket 12, and then the locking column 52 is controlled to move toward the auxiliary bracket 15. The surface of the auxiliary bracket 15 is provided with a connecting block 15 1, the connecting block 151 is provided with an internal threaded hole, and the locking ring 51 is rotated to make the locking column 52 threadedly connected to the connecting block 151, at this time, the auxiliary bracket 15 is initially fixed; then the output end of the telescopic cylinder 3 6 can be controlled to extend until the rubber pad on the pressure arm 1 61 abuts against the outer wall of the auxiliary bracket 15, and the pressure arm 1 61 and the fixing seat 5 clamp the right bracket 12 and the auxiliary bracket 15 between the two, which is convenient for welding between the auxiliary bracket 15 and the right bracket 12, and at the same time will not affect the welding and fixing between the right bracket 12 and the lower bracket 11 or the upper bracket 14.

[0032] like Fig. 9 , Fig.10As shown, when the left bracket 13 is limited, after the telescopic cylinder 24 at the corresponding left bracket 13 is extended, the slide seat 42 here moves toward the left bracket 13 under the push of the output end of the telescopic cylinder 24, and the clamping block 73 and the telescopic cylinder 47 move toward the left bracket 13 synchronously until the clamping block 73 abuts against the outer wall of the left bracket 13, and the left bracket 13 can be fixed in the next step.

[0033] The above scheme is further refined, a fixed block 272 is also fixedly provided on the outside of the telescopic cylinder 47, the middle part of the pressure arm 271 is rotatably connected to the fixed block 272, and the tail part of the pressure arm 271 is rotatably connected to the output end of the telescopic cylinder 47, and the head part of the pressure arm 271 is in a "U"-shaped structure. When the left bracket 13 is limited and clamped, the output end of the telescopic cylinder 47 is controlled to extend. At this time, the pressure arm 271 swings about the position where it is rotatably connected to the fixed block 272 until the pressure arm 271 extends into the interior of the left bracket 13 from the opening. At this time, as the pressure arm 271 swings, the head part of the pressure arm 271 and the clamping block 73 tightly clamp the left bracket 13 from two opposite directions, and because the clamping direction is opposite to the opening, the clamping position is not easy to deform, so that the left bracket 13 can be accurately limited, which is convenient for welding the connection between the left bracket 13 and the lower bracket 11.

[0034] It should be noted that, since the lower bracket 11 itself also has an opening, when the left bracket 13 is limited and fixed, the two sides of the opening of the lower bracket 11 also play a limiting role to prevent the left bracket 13 from moving over a large range during the extrusion process.

[0035] As an example, Fig. 9 , Fig.10 As shown, a manual limit assembly is also provided on the sliding seat 42 corresponding to the left bracket 13, and the manual limit assembly includes a positioning sleeve 8, a sleeve rod 81, a pull rod 84 and a rotating seat 83 installed at the bottom of the positioning sleeve 8, the sleeve rod 81 is slidably sleeved with the positioning sleeve 8, and the sleeve rod 81 is connected to the limit pin 2 82 at one end facing the left bracket 13, and the limit pin 2 82 is detachably connected to the left bracket 13, the lower end of the pull rod 84 is rotatably connected to the rotating seat 83, and the middle part of the pull rod 84 is rotatably connected to the end of the sleeve rod 81 facing away from the left bracket 13; when the left bracket 13 is limited and fixed by the pressure arm 2 71 and the tightening block 73, the pull rod 84 is manually pulled, so that the pull rod 84 swings upward about the rotating connection between it and the rotating seat 83, and then pushes the sleeve rod 81 to move toward the left bracket 13 until the limit pin 2 82 is plugged into the through hole on the outer wall of the left bracket 13, thereby realizing reliable fixation of the left bracket 13.

[0036] To further refine the above solution, there is an angle between the upper end and the middle of the pull rod 84, that is, this part of the pull rod 84 is in a bent state, thereby making it easier for the user to lift and use it.

[0037] As an example, Figure 1 , Fig.11 , Fig.12 , Fig.13 As shown, a clamping assembly 9 is provided above the bottom plate 2 at a position corresponding to the upper bracket 14, and the clamping assembly 9 includes a base 91 and a vertical rod 92 installed above the base 91; the top of the vertical rod 92 is designed in an L shape, and a rack 93 and a rotating column 94 are provided on the top of the vertical rod 92, and a slide groove 96 is provided above and below the top of the vertical rod 92 corresponding to the position where the rack 93 slides, and an opening is formed on the surface of the slide groove 96, and a sealing plate 95 is detachably connected to the opening of the slide groove 96, and the sealing plate 95 is used to protect the rack 93; the rotating column 9 4 horizontally penetrates the top of the vertical pole 92 and can rotate. A gear 941 is sleeved on the outside of the rotating column 94. The gear 941 rotates in the slide groove 96, and the rack 93 slides in the slide groove 96. The gear 941 is meshed with the rack 93 for transmission connection. According to the different rotation directions of the gear 941, the rack 93 is displaced upward or downward in the vertical direction. A pressing block 931 can be detachably connected to the lower end of the rack 93. To further refine the above scheme, one end of the rotating column 94 extending outside the vertical pole 92 is connected to a turning handle 942.

[0038] When in use, after the lower bracket 11, the left bracket 13 and the right bracket 12 are assembled, the upper bracket 14 is placed above the left bracket 13 and the right bracket 12, and then the handle 942 is turned to rotate the rotating column 94, thereby driving the gear 941 to rotate, and the rack 93 moves toward the upper bracket 14 below, so that the pressure block 931 is in close contact with the upper bracket 14, and the upper bracket 14 is reliably clamped, so that the upper bracket 14 can be accurately limited, which is convenient for welding the left bracket 13, the right bracket 12 and the upper bracket 14, reducing the weld and improving the welding quality.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A HUD bracket welding tool, used for limiting the installation of a bracket body (1), the bracket body (1) comprising a lower bracket (11), a right bracket (12), a left bracket (13), an upper bracket (14) and an auxiliary bracket (15), characterized in that: The welding tool comprises a base plate (2), a telescopic cylinder 1 (3) is arranged below the base plate (2), the output end of the telescopic cylinder 1 (3) faces upward and is fixed to the lower bracket (11); a telescopic cylinder 2 (4) is arranged above the base plate (2) at positions corresponding to the right bracket (12) and the left bracket (13), a slide rail (41) and a slide seat (42) are arranged at the output end of the telescopic cylinder 2 (4), and the slide seat (42) approaches or moves away from the right bracket (12) or the left bracket (13) under the action of the output end of the telescopic cylinder 2 (4); wherein a fixed seat (5) is arranged on the slide seat (42) at the position corresponding to the right bracket (12) and a telescopic cylinder three (6), the fixed seat (5) and the telescopic cylinder three (6) are spaced apart with respect to the right bracket (12), the fixed seat (5) abuts against the outer wall of the right bracket (12), the output end of the telescopic cylinder three (6) is connected to a pressure arm one (61), and the pressure arm one (61) abuts against the inner wall of the right bracket (12); a telescopic cylinder four (7) and a tightening block (73) are arranged on the sliding seat (42) corresponding to the left bracket (13), the tightening block (73) abuts against the outer wall of the left bracket (13), the output end of the telescopic cylinder four (7) is connected to a pressure arm two (71), and the pressure arm two (71) abuts against the inner wall of the left bracket (13).

2. A HUD bracket welding tool according to claim 1, characterized in that: The lower bracket (11), the right bracket (12), the left bracket (13) and the upper bracket (14) are assembled to form a rectangular structure, wherein the upper bracket (14) is a circular structure, the interiors of the lower bracket (11), the right bracket (12) and the left bracket (13) are all hollowed out, and the outer walls of the three brackets are provided with at least one opening communicating with the interiors thereof; the lower ends of the right bracket (12) and the left bracket (13) extend into the interior of the lower bracket (11), and the upper ends of the right bracket (12) and the left bracket (13) are cut into arc shapes at the positions where they contact the upper bracket (14).

3. The HUD bracket welding tool according to claim 2, characterized in that: A connecting seat (32) is provided between the telescopic cylinder 1 (3) and the bottom plate (2), the connecting seat (32) comprising a plurality of L-shaped supports, the plurality of L-shaped supports being connected to each other via screws, the output end of the telescopic cylinder 1 (3) being connected to a limiting pin 1 (31), the limiting pin 1 (31) being detachably connected to the lower bracket (11).

4. The HUD bracket welding tool according to claim 2, characterized in that: The slide rail (41) is mounted on the top surface of the base plate (2), the slide seat (42) is slidably connected to the slide rail (41), and the output end of the second telescopic cylinder (4) is fixedly connected to the slide seat (42).

5. The HUD bracket welding tool according to claim 4, characterized in that: The fixed seat (5) and the third telescopic cylinder (6) move towards the right bracket (12) under the drive of the second telescopic cylinder (4) until the fixed seat (5) is in clearance fit with the outer wall of the right bracket (12); a first fixing block (62) is also fixedly arranged outside the third telescopic cylinder (6). The first pressing arm (61) is in a "T" - shaped structure. The wider end of the first pressing arm (61) is rotatably connected to the output end of the second telescopic cylinder (4), the wider end of the first pressing arm (61) is rotatably connected to the first fixing block (62), and a rubber pad is arranged at the narrower end of the first pressing arm (61) towards the position of the inner wall of the right bracket (12).

6. The HUD bracket welding tool according to claim 4, characterized in that: The pressing block (73) and the fourth telescopic cylinder (7) move towards the left bracket (13) under the drive of the second telescopic cylinder (4) until the pressing block (73) abuts against the outer wall of the left bracket (13); a second fixing block (72) is also fixedly arranged outside the fourth telescopic cylinder (7). The middle part of the second pressing arm (71) is rotatably connected to the second fixing block (72), the tail part of the second pressing arm (71) is rotatably connected to the output end of the fourth telescopic cylinder (7), and the head part of the second pressing arm (71) is in a "U" - shaped structure and abuts against the inner wall of the left bracket (13) after rotating a certain angle.

7. The HUD bracket welding tool according to claim 4, characterized in that: A manual limit assembly is also arranged on the sliding seat (42) corresponding to the left bracket (13). The manual limit assembly includes a positioning sleeve (8), a sleeve rod (81), a pull rod (84), and a rotating seat (83) installed at the bottom of the positioning sleeve (8). The sleeve rod (81) is slidably sleeved with the positioning sleeve (8). A second limit pin (82) is connected to one end of the sleeve rod (81) facing the left bracket (13), and the second limit pin (82) is detachably connected to the left bracket (13). The lower end of the pull rod (84) is rotatably connected to the rotating seat (83), and the middle part of the pull rod (84) is rotatably connected to the end of the sleeve rod (81) facing away from the left bracket (13).

8. The HUD bracket welding tool according to claim 7, characterized in that: There is an included angle between the upper end and the middle part of the pull rod (84).

9. The HUD bracket welding tool according to claim 2, characterized in that: A pressing assembly (9) is arranged above the bottom plate (2) corresponding to the upper bracket (14). The pressing assembly (9) includes a base (91) and a vertical rod (92) installed above the base (91). The top of the vertical rod (92) is in an L - shaped design. A rack (93) and a rotating column (94) are arranged at the top of the vertical rod (92). A gear (941) is sleeved outside the rotating column (94), and the gear (941) is meshed and传动连接 with the rack (93). According to the different rotation directions of the gear (941), the rack (93) moves upward or downward in the vertical direction. A pressing block (931) is also detachably connected to the lower end of the rack (93). It should be noted that in the translation of the last line, the "传动连接" in Chinese is not accurately translated in the English version you provided. It should be "driven and connected" or "meshed and driven". The above translation is adjusted according to the context.

10. The HUD bracket welding tool according to claim 9, characterized in that: A slide groove (96) is provided through the top of the vertical rod (92) corresponding to the position where the rack (93) slides, and a sealing plate (95) is detachably connected to the opening of the slide groove (96). The rotating column (94) horizontally penetrates the top of the vertical rod (92), and the gear (941) rotates in the slide groove (96). One end of the rotating column (94) extending outside the vertical rod (92) is connected to a turning handle (942).

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