Welding positioning device for fireproof window machining

Abstract

The invention relates to the field of welding positioning devices, in particular to a welding positioning device for fireproof window machining, which comprises a worktable, sliding grooves are formed in the periphery of the upper end of the worktable, clamping plates are slidably mounted in the sliding grooves, and a positioning assembly is rotatably mounted in the center of the upper end of the worktable and comprises an upper turntable and a lower turntable; the bottom of the upper rotary disc is rotationally matched with the lower rotary disc through a rotating part, the rotating part is rotationally matched with the workbench, the two ends of the upper rotary disc and the two ends of the lower rotary disc extend to be provided with positioning strips, the two sets of positioning strips are symmetrically arranged in a crossed mode, and the bottom of each set of positioning strips is fixedly provided with a frame plate used for bearing a window frame. Synchronous connecting rods are rotationally installed at the two ends of the bottom of the erecting plate. The corner joint of two adjacent window frames can be strictly limited, the adjacent window frames are accurately aligned through the limiting blocks, the welding accuracy of the window frame joint is effectively improved, and meanwhile the welding device can adapt to the welding process of the window frames of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of welding positioning devices, and in particular to a welding positioning device for processing fireproof windows. Background Art

[0002] Fireproof windows are windows made of steel window frames, steel window sashes, and fireproof glass that can isolate and prevent the spread of fire. They are generally set up as openings or skylights on the exterior walls of buildings where the fire separation distance is insufficient, on fire walls or fireproof partitions within the building where observation is required, and on the exterior wall openings where fire needs to be prevented from spreading vertically.

[0003] During the production and processing of fireproof windows, the window frames of fireproof windows need to be welded. At present, the positioning device for window frame welding often adopts a simple fixed bracket structure, which only clamps the window frame, and it is difficult to ensure the precise alignment of the corner joints of two adjacent window frames, which seriously affects the quality of window frame welding. Summary of the invention

[0004] The purpose of the present invention is to provide a welding positioning device for fireproof window processing, aiming to solve the above technical problems.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A welding positioning device for processing fireproof windows comprises a workbench, wherein the upper end of the workbench is provided with slide grooves around, wherein clamping plates are slidably installed in the slide grooves, and a positioning assembly is rotatably installed in the center of the upper end of the workbench, wherein the positioning assembly comprises an upper turntable and a lower turntable, wherein the bottom of the upper turntable is rotatably matched with the lower turntable through a rotating part, wherein the rotating part is rotatably matched with the workbench, and positioning strips are extended from both ends of the upper turntable and the lower turntable, and the two groups of the positioning strips are cross-symmetrically arranged, and a mounting plate for carrying a window frame is fixedly arranged at the bottom of each group of the positioning strips, wherein the upper turntable and the lower turntable are rotatably matched ... Synchronous connecting rods are rotatably installed at both ends of the bottom of the mounting plate, and adjacent synchronous connecting rods form a group. The two groups of synchronous connecting rods are symmetrically arranged to drive the two groups of positioning bars to rotate synchronously to adjust the angle, and limit blocks are slidably installed at both ends of the two groups of positioning bars. A top frame is fixedly arranged at the upper end of the workbench, and a driving motor is fixedly arranged on the top frame. The output end of the driving motor is connected to a central axis, and a sliding sleeve is axially slidably installed on the central axis. The sliding sleeve is connected to the limit block by a positioning connecting rod, and the positioning connecting rod drives the limit block to slide synchronously along the positioning bar.

[0007] As a further solution of the present invention: a slider is fixedly connected to the bottom of the splint, and the slider is adapted to be slidably installed in the slide groove. A pull rod is fixedly connected to the back side of the splint, and the pull rod slides through the side of the workbench and is connected to the pull plate. A reset spring is arranged between the pull plate and the side of the workbench.

[0008] As a further solution of the present invention: a clearance opening is provided through the center of the workbench, a mounting plate is fixedly provided in the center of the clearance opening, the upper turntable and the lower turntable are rotatably mounted on the mounting plate through a rotating part, a group of toothed plates are symmetrically arranged below the center of the mounting plate, and the ends of each group of synchronous connecting rods are rotatably connected to one end of the toothed plate through a rotating shaft.

[0009] As a further solution of the present invention: slide rails are fixedly arranged on both sides of the bottom of the mounting plate, and slide bars are fixedly arranged on the outer side of the toothed plate, and the slide bars are adapted to be slidably installed in the corresponding slide rails.

[0010] As a further solution of the present invention: a base frame is fixedly provided at the bottom of the yield opening, an adjusting motor is fixedly provided on the base frame, an output shaft of the adjusting motor coaxially rotates and passes through the upper turntable and the lower turntable, an adjusting gear is fixedly sleeved on the output shaft of the adjusting motor, and the adjusting gear is meshed with two toothed plates at the same time.

[0011] As a further solution of the present invention: a limiting right-angle portion is arranged at one end of the limiting block close to the window frame, pressure sensors are arranged on both inner walls of the limiting right-angle portion, a signal processor is fixedly arranged on the back side of the limiting block, and the pressure sensor is communicatively connected with the signal processor.

[0012] As a further solution of the present invention: a back plate is extended at both ends of the positioning bar, a sliding rod is fixedly provided on the back side of the limit block, the sliding rod slides through the back plate and is fixedly connected to a baffle, a return spring is provided between the limit block and the back plate, and a connecting seat is fixedly provided on the top of the limit block.

[0013] As a further solution of the present invention: a ring rail is circumferentially arranged on the outer wall of the sliding sleeve, a rotating seat is slidably mounted on the ring rail, one end of the positioning connecting rod is rotationally matched with the rotating seat, and the other end of the positioning connecting rod is rotationally matched with the connecting seat.

[0014] As a further solution of the present invention: an extrusion spring is arranged between the top of the sliding sleeve and the top frame, extension plates are fixedly arranged on both sides of the top of the sliding sleeve, a lifting cylinder is fixedly arranged on the top frame, the output end of the lifting cylinder is connected to one end of the extension plate, and a guide rod is fixedly arranged on the other end of the extension plate, and the guide rod slides through the top frame.

[0015] As a further solution of the present invention: a telescopic mechanical arm is fixedly connected to the bottom end of the central shaft, and a welding head is rotatably installed at the end of the telescopic mechanical arm.

[0016] Beneficial effects of the present invention:

[0017] (1) By setting the positioning assembly and the limit block, before welding the window frames, firstly, the two groups of window frames are placed on the mounting plate respectively, and the window frames are pushed and clamped by using the two groups of clamping plates respectively, so that the two ends of each window frame can be tightly against the corresponding positioning strips, thereby realizing the positioning and clamping of the window frames. At the same time, by using the up and down sliding process of the sliding sleeve, the limit block is driven to slide synchronously along the positioning strip through the positioning connecting rod until each limit block is against the corner of the two adjacent window frames, thereby strictly limiting the corner connection of the two adjacent window frames, and using the limit block to make the adjacent window frames accurately aligned, effectively improving the welding accuracy of the window frame joints.

[0018] (2) The corner joints of two adjacent window frames are aligned and limited by positioning strips. When the upper turntable and the lower turntable are driven to rotate synchronously by the synchronous connecting rod, the angle between the two sets of positioning strips will also change accordingly. In conjunction with the clamping process of the clamping plate and the limit block, the size of the window frame to which the positioning strips are applicable will also be adjusted accordingly, thereby being able to utilize the change in the angle of the positioning strips to adapt to the welding process of window frames of different sizes.

[0019] (3) By setting the sliding sleeve, the lifting cylinder will push the sliding sleeve to slide up and down along the central axis. At the same time, the sliding sleeve will drive the limit block to slide radially along the positioning strip through the positioning link until the limit block is pressed against the corner of the adjacent window frame. When adjusting the angle of the positioning strip, the limit block will also drive the rotating seat to slide adaptively along the ring rail through the positioning link, so that the sliding sleeve can always realize transmission between the positioning link and the limit block, and the transmission process is reliable and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the splint in the present invention.

[0023] Figure 3 It is a structural schematic diagram of the positioning component in the present invention.

[0024] Figure 4 It is a schematic diagram of the bottom structure of the workbench in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the regulating motor in the present invention.

[0026] Figure 6 It is a structural schematic diagram of the synchronous connecting rod in the present invention.

[0027] Figure 7 It is a structural schematic diagram of the limit block in the present invention.

[0028] Figure 8 It is a structural schematic diagram of the top frame in the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the sliding sleeve in the present invention.

[0030] In the figure: 1. workbench; 101. slide; 102. opening; 103. chassis; 104. mounting plate; 105. slide rail; 2. clamping plate; 201. slider; 202. pull rod; 203. return spring; 3. positioning assembly; 301. upper turntable; 302. lower turntable; 303. rotating part; 304. positioning bar; 305. mounting plate; 306. synchronous connecting rod; 307. tooth plate; 308. slide bar; 309. support plate; 4. limit block; 401. Limit right angle part; 402, pressure sensor; 403, signal processor; 404, slide rod; 405, baffle; 406, return spring; 407, connecting seat; 5, top frame; 6, adjusting motor; 601, adjusting gear; 7, driving motor; 701, central axis; 8, sliding sleeve; 801, rotating seat; 802, positioning connecting rod; 803, ring rail; 804, extrusion spring; 805, extension plate; 9, telescopic robotic arm; 10, welding head; 11, lifting cylinder. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in 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.

[0032] See also Figure 1-Figure 3 , Figure 6 and Figure 8As shown, the present invention is a welding positioning device for processing fireproof windows, comprising a workbench 1, wherein slide grooves 101 are arranged around the upper end of the workbench 1, wherein clamping plates 2 are slidably installed in the slide grooves 101, wherein a positioning assembly 3 is rotatably installed at the center of the upper end of the workbench 1, wherein the positioning assembly 3 comprises an upper turntable 301 and a lower turntable 302, wherein the bottom of the upper turntable 301 is rotatably matched with the lower turntable 302 through a rotating portion 303, wherein the rotating portion 303 is rotatably matched with the workbench 1, wherein positioning strips 304 are extended from both ends of the upper turntable 301 and the lower turntable 302, and the two groups of positioning strips 304 are cross-symmetrically arranged, and a mounting for carrying a window frame is fixedly arranged at the bottom of each group of positioning strips 304 Plate 305, both ends of the bottom of the mounting plate 305 are rotatably installed with synchronous connecting rods 306, adjacent synchronous connecting rods 306 form a group, two groups of synchronous connecting rods 306 are symmetrically arranged to drive the two groups of positioning bars 304 to rotate synchronously to adjust the angle, and both ends of the two groups of positioning bars 304 are slidably installed with limit blocks 4, a top frame 5 is fixedly arranged on the upper end of the workbench 1, and a driving motor 7 is fixedly arranged on the top frame 5, and the output end of the driving motor 7 is connected to the central axis 701, and a sliding sleeve 8 is axially slidably installed on the central axis 701, and the sliding sleeve 8 is connected to the limit block 4 through a positioning connecting rod 802, and the positioning connecting rod 802 drives the limit block 4 to slide synchronously along the positioning bar 304.

[0033] Specifically, by setting the positioning assembly 3 and the limit block 4, before welding the window frames, firstly, the two groups of window frames are placed on the mounting plate 305 respectively, and the window frames are pushed and clamped by using the two groups of clamping plates 2 respectively, so that the two ends of each window frame can be tightly against the corresponding positioning strip 304, thereby realizing the positioning and clamping of the window frame, and at the same time, by utilizing the up and down sliding process of the sliding sleeve 8, the limit block 4 is driven by the positioning link 802 to slide synchronously along the positioning strip 304 until each limit block 4 is against the corner of the two adjacent window frames, thereby strictly limiting the corner connection of the two adjacent window frames, and using the limit block 4 to make the adjacent window frames accurately aligned, effectively improving the welding accuracy of the window frame joints.

[0034] More specifically, the corner joints of two adjacent window frames are limited and aligned by the positioning strips 304. When the upper turntable 301 and the lower turntable 302 are driven to rotate synchronously by the synchronization connecting rod 306, the angle between the two sets of positioning strips 304 will also change accordingly. In conjunction with the limiting and clamping process of the splint 2 and the limit block 4, the window frame size applicable to the positioning strips 304 will also be adjusted accordingly, so that the angle change of the positioning strips 304 can be used to adapt to the welding process of window frames of different sizes.

[0035] like Figure 2As shown, a slider 201 is fixedly connected to the bottom of the splint 2, and the slider 201 is adapted to be slidably installed in the slide groove 101. A pull rod 202 is fixedly connected to the back side of the splint 2. The pull rod 202 slides through the side of the workbench 1 and is connected to the pull plate. A return spring 203 is arranged between the pull plate and the side of the workbench 1.

[0036] Specifically, the clamps 2 in the present application are arranged in pairs, and the horizontal clamps 2 are used to press against the left and right window frames, and the vertical clamps 2 are used to press against the upper and lower window frames. When the window frame is ready to be placed, the clamps 2 are pulled outward by the pull rod 202 to provide space for the installation of the window frame. At this time, the reset spring 203 is stretched and deformed. After the window frame is placed, the pull rod 202 is released. Under the elastic force of the reset spring 203, the clamps 2 will slide in the opposite direction until they are tightly pressed against the window frame, and at the same time, both ends of the window frame will also press against the corresponding positioning strips 304.

[0037] like Figure 3-Figure 6 As shown, a clearance opening 102 is provided through the center of the workbench 1, and a mounting plate 104 is fixedly provided in the center of the clearance opening 102. The upper turntable 301 and the lower turntable 302 are rotatably mounted on the mounting plate 104 through a rotating portion 303. A group of toothed plates 307 are symmetrically provided below the center of the mounting plate 104, and the ends of each group of synchronous connecting rods 306 are rotatably connected to one end of the toothed plate 307 through a rotating shaft.

[0038] Specifically, the two sets of synchronous connecting rods 306 are symmetrically arranged, and each set of synchronous connecting rods 306 is driven by a corresponding toothed plate 307. When the two toothed plates 307 move synchronously, the two sets of synchronous connecting rods 306 will be driven to swing simultaneously, so that the two positioning bars 304 can deflect simultaneously, and the two positioning bars 304 always maintain cross symmetry during the process of adjusting the angle. Among them, the clearance opening 102 can provide sufficient activity space for the swinging process of the synchronous connecting rod 306.

[0039] Furthermore, slide rails 105 are fixedly provided on both sides of the bottom of the mounting plate 104 , and slide bars 308 are fixedly provided on the outer side of the toothed plate 307 . The slide bars 308 are adapted to be slidably installed in the corresponding slide rails 105 .

[0040] Furthermore, a base frame 103 is fixedly provided at the bottom of the yield opening 102, and an adjusting motor 6 is fixedly provided on the base frame 103. The output shaft of the adjusting motor 6 coaxially rotates and passes through the upper turntable 301 and the lower turntable 302. An adjusting gear 601 is fixedly sleeved on the output shaft of the adjusting motor 6, and the adjusting gear 601 is meshed with the two toothed plates 307 at the same time.

[0041] Specifically, when the adjusting motor 6 is started, it will drive the adjusting gear 601 to rotate, and the adjusting gear 601 will drive the two toothed plates 307 to perform synchronous linear displacements toward each other, thereby driving the two sets of synchronous connecting rods 306 to swing to achieve angle adjustment. By using the sliding cooperation between the slide bar 308 and the slide rail 105, the linear sliding process of the toothed plate 307 can be limited and guided to ensure reliable and stable transmission process.

[0042] like Figure 7 As shown, a limiting right-angle portion 401 is provided at one end of the limiting block 4 close to the window frame, pressure sensors 402 are provided on both inner walls of the limiting right-angle portion 401, a signal processor 403 is fixedly provided on the back side of the limiting block 4, and the pressure sensor 402 is communicatively connected with the signal processor 403.

[0043] Specifically, by setting the limiting right-angle portion 401, when the limiting block 4 slides toward the window frame along the positioning strip 304, the limiting right-angle portion 401 will be clamped at the corner of the window frame. When two adjacent window frames are aligned at the corner, the limiting right-angle portion 401 will be pressed against the two window frame sides at the same time, and the pressure sensors 402 on the two inner walls of the limiting right-angle portion 401 will collect pressure signals; when two adjacent window frames are not aligned at the corner, the limiting right-angle portion 401 will be pressed against one of the window frame sides, and only the pressure sensor 402 on one inner wall will receive the pressure signal. Therefore, it is possible to intuitively judge whether the two adjacent window frames are aligned at the corner based on the presence or absence of pressure signals on the inner walls on both sides of the limiting right-angle portion 401.

[0044] like Figure 7-Figure 9 As shown, a support plate 309 is extended at both ends of the positioning bar 304, a sliding rod 404 is fixedly provided on the back side of the limit block 4, the sliding rod 404 slides through the support plate 309 and is fixedly connected to a baffle 405, a return spring 406 is provided between the limit block 4 and the support plate 309, and a connecting seat 407 is fixedly provided at the top of the limit block 4.

[0045] Furthermore, a circular rail 803 is circumferentially arranged on the outer wall of the sliding sleeve 8, and a rotating seat 801 is slidably mounted on the circular rail 803. One end of the positioning link 802 is rotationally matched with the rotating seat 801, and the other end of the positioning link 802 is rotationally matched with the connecting seat 407.

[0046] Furthermore, an extrusion spring 804 is arranged between the top of the sliding sleeve 8 and the top frame 5, extension plates 805 are fixedly arranged on both sides of the top of the sliding sleeve 8, a lifting cylinder 11 is fixedly arranged on the top frame 5, the output end of the lifting cylinder 11 is connected to one end of the extension plate 805, and a guide rod is fixedly arranged on the other end of the extension plate 805, and the guide rod slides through the top frame 5.

[0047] Specifically, by setting the sliding sleeve 8, the lifting cylinder 11 will push the sliding sleeve 8 to slide up and down along the central axis 701. At the same time, the sliding sleeve 8 will drive the limit block 4 to slide radially along the positioning bar 304 through the positioning link 802 until the limit block 4 is pressed against the corner of the adjacent window frame. When adjusting the angle of the positioning bar 304, the limit block 4 will also drive the rotating seat 801 to slide adaptively along the ring rail 803 through the positioning link 802, so that the sliding sleeve 8 can always realize transmission between the positioning link 802 and the limit block 4, and the transmission process is reliable and stable.

[0048] like Figure 8 As shown, a telescopic mechanical arm 9 is fixedly connected to the bottom end of the central shaft 701, and a welding head 10 is rotatably mounted on the end of the telescopic mechanical arm 9.

[0049] Specifically, the driving motor 7 is started, and the telescopic robot arm 9 is driven to rotate through the central axis 701. In combination with the telescopic adjustment of the telescopic robot arm 9 and the swing adjustment of the welding head 10, the welding posture and welding angle of the welding head 10 can be freely adjusted.

[0050] The working principle of the present invention is as follows: Figure 1-Figure 9 As shown, before welding the window frames, firstly, two groups of window frames are placed on the mounting plate 305 respectively, and two groups of clamping plates 2 are used to push and clamp the window frames respectively, so that both ends of each window frame can be tightly against the corresponding positioning strip 304, thereby realizing the positioning and clamping of the window frames. At the same time, the lifting cylinder 11 pushes the sliding sleeve 8 to slide upward along the central axis 701, and the sliding sleeve 8 drives the limit block 4 to realize radial sliding along the positioning strip 304 through the positioning connecting rod 802, until the limit block 4 is tightly against the corner of the adjacent window frame, thereby strictly limiting the corner joint of the two adjacent window frames, and using the limit block 4 to accurately align the adjacent window frames. The driving motor 7 is started, and the telescopic mechanical arm 9 is driven to rotate through the central axis 701. In combination with the telescopic adjustment of the telescopic mechanical arm 9 and the swing adjustment of the welding head 10, the welding posture and welding angle of the welding head 10 can be freely adjusted, so that the welding head 10 can be used to accurately weld the window frame seam.

[0051] When it is necessary to adjust the angle between the two positioning strips 304, the adjusting motor 6 is started, which will drive the adjusting gear 601 to rotate. The adjusting gear 601 will drive the two toothed plates 307 to perform synchronous linear displacements toward each other, thereby driving the two sets of synchronous connecting rods 306 to swing. The angle between the two sets of positioning strips 304 will also change accordingly. In conjunction with the limiting clamping process of the clamping plate 2 and the limiting block 4, the window frame size applicable to the positioning strip 304 will also be adjusted accordingly, so that the angle change of the positioning strip 304 can be used to adapt to the welding process of window frames of different sizes.

[0052] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A welding positioning device for processing fireproof windows, comprising a workbench (1), wherein the upper end of the workbench (1) is provided with slide grooves (101) around the periphery, and clamping plates (2) are slidably installed in the slide grooves (101), characterized in that: A positioning assembly (3) is rotatably mounted at the center of the upper end of the workbench (1), and the positioning assembly (3) comprises an upper turntable (301) and a lower turntable (302). The bottom of the upper turntable (301) is rotatably matched with the lower turntable (302) via a rotating portion (303), and the rotating portion (303) is rotatably matched with the workbench (1). Positioning bars (304) are extended from both ends of the upper turntable (301) and the lower turntable (302), and the two groups of positioning bars (304) are arranged in a cross-symmetrical manner. A mounting plate (305) for supporting a window frame is fixedly mounted at the bottom of each group of positioning bars (304), and synchronous connecting rods (306) are rotatably mounted at both ends of the bottom of the mounting plates (305). The synchronous connecting rods (306) form a group, and the two groups of synchronous connecting rods (306) are symmetrically arranged to drive the two groups of positioning bars (304) to rotate synchronously to adjust the angle. The two ends of the two groups of positioning bars (304) are slidably installed with limit blocks (4). A top frame (5) is fixedly arranged on the upper end of the workbench (1), and a driving motor (7) is fixedly arranged on the top frame (5). The output end of the driving motor (7) is connected to a central shaft (701), and a sliding sleeve (8) is axially slidably installed on the central shaft (701). The sliding sleeve (8) is connected to the limit block (4) via a positioning connecting rod (802), and the positioning connecting rod (802) drives the limit block (4) to slide synchronously along the positioning bar (304).

2. A welding positioning device for fireproof window processing according to claim 1, characterized in that: A slider (201) is fixedly connected to the bottom of the clamping plate (2), and the slider (201) is adapted to be slidably installed in the sliding groove (101). A pull rod (202) is fixedly connected to the back side of the clamping plate (2), and the pull rod (202) slides through the side of the workbench (1) and is connected to the pull plate. A return spring (203) is provided between the pull plate and the side of the workbench (1).

3. A welding positioning device for fireproof window processing according to claim 1, characterized in that: A clearance opening (102) is provided through the center of the workbench (1), a mounting plate (104) is fixedly provided in the center of the clearance opening (102), the upper turntable (301) and the lower turntable (302) are rotatably mounted on the mounting plate (104) via a rotating portion (303), a group of toothed plates (307) are centrally symmetrically provided below the mounting plate (104), and the end of each group of synchronous connecting rods (306) is rotatably connected to one end of the toothed plate (307) via a rotating shaft.

4. A welding positioning device for fireproof window processing according to claim 3, characterized in that: Slide rails (105) are fixedly arranged on both sides of the bottom of the mounting plate (104), and slide bars (308) are fixedly arranged on the outer side of the toothed plate (307), and the slide bars (308) are adapted to be slidably installed in the corresponding slide rails (105).

5. A welding positioning device for fireproof window processing according to claim 4, characterized in that: A base frame (103) is fixedly arranged at the bottom of the clearance opening (102), an adjusting motor (6) is fixedly arranged on the base frame (103), an output shaft of the adjusting motor (6) coaxially rotates and passes through the upper rotating disk (301) and the lower rotating disk (302), an adjusting gear (601) is fixedly sleeved on the output shaft of the adjusting motor (6), and the adjusting gear (601) is meshed with the two toothed plates (307) at the same time.

6. A welding positioning device for fireproof window processing according to claim 1, characterized in that: A limiting right-angle portion (401) is provided at one end of the limiting block (4) close to the window frame, pressure sensors (402) are provided on both inner walls of the limiting right-angle portion (401), a signal processor (403) is fixedly provided on the back side of the limiting block (4), and the pressure sensor (402) is communicatively connected to the signal processor (403).

7. A welding positioning device for fireproof window processing according to claim 1, characterized in that: A back plate (309) is extended from both ends of the positioning strip (304), a sliding rod (404) is fixedly arranged on the back side of the limit block (4), the sliding rod (404) slides through the back plate (309) and is fixedly connected to a baffle (405), a return spring (406) is arranged between the limit block (4) and the back plate (309), and a connecting seat (407) is fixedly arranged on the top of the limit block (4).

8. A welding positioning device for fireproof window processing according to claim 7, characterized in that: A circular rail (803) is circumferentially arranged on the outer wall of the sliding sleeve (8), a rotating seat (801) is slidably mounted on the circular rail (803), one end of the positioning connecting rod (802) is rotationally engaged with the rotating seat (801), and the other end of the positioning connecting rod (802) is rotationally engaged with the connecting seat (407).

9. A welding positioning device for fireproof window processing according to claim 8, characterized in that: A compression spring (804) is provided between the top end of the sliding sleeve (8) and the top frame (5); extension plates (805) are fixedly provided on both sides of the top end of the sliding sleeve (8); a lifting cylinder (11) is fixedly provided on the top frame (5); an output end of the lifting cylinder (11) is connected to one end of the extension plate (805); a guide rod is fixedly provided at the other end of the extension plate (805); and the guide rod slides through the top frame (5).

10. A welding positioning device for fireproof window processing according to any one of claims 1 to 9, characterized in that: The bottom end of the central shaft (701) is fixedly connected to a telescopic mechanical arm (9), and a welding head (10) is rotatably mounted on the end of the telescopic mechanical arm (9).

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