CN115519303A

CN115519303A - Welding limiting support for manufacturing special parts of automobile

Info

Publication number: CN115519303A
Application number: CN202211334675.0A
Authority: CN
Inventors: 周欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2022-12-27

Abstract

The invention provides a welding limiting support for manufacturing automobile special parts, which relates to the technical field of welding supports for automobile special parts and comprises a base, wherein the main body of the base is of a rectangular structure, the base is provided with two positions, fans are fixedly connected to the top end surfaces of the two positions of the base, each fan is of a frame structure, an air groove is formed in the top end surface of each fan, the air grooves are used for exhausting air through the fans arranged at the front ends of the fans, the base and the fans form a bearing structure for a motor A, the problem that the conventional self-adaptive clamping operation cannot be automatically carried out on special-shaped accessories during welding operation, and further limitation exists is solved, after a movable seat moves to a proper position, an electric push rod B arranged at the top end of the movable seat is started to drive a pressing plate downwards, and after the automatic limiting clamping operation is carried out on the special parts placed on the base through the pressing plate, normal welding operation can be started.

Description

Welding limiting support for manufacturing special parts of automobile

Technical Field

The invention relates to the technical field of special automobile part welding supports, in particular to a welding limiting support for manufacturing special automobile parts.

Background

The automobile parts manufacturing is units forming the whole automobile parts processing and a product serving for the automobile parts processing, and many of the parts need to be supported by corresponding brackets during connection so as to carry out welding operation.

However, in the current welding device, when the special parts are welded and limited, the outer shapes of the special parts are mostly irregular structures due to the particularity of the parts, the irregular special parts need to be limited by using a special fixture when the special parts are limited, but batch special parts need to be frequently replaced by supports when the special parts are welded, which causes inconvenience, and automatic self-adaptive clamping operation of special parts cannot be performed when welding operation is performed, so that limitation exists.

Disclosure of Invention

The invention provides a welding limiting bracket for manufacturing special parts of an automobile, which specifically comprises the following components: the base, the main part of base is the rectangle structure, and the base is equipped with two altogether, and fixedly connected with fan on the top face of two bases, the fan is the frame structure, and seted up the wind groove on the face of the top of fan, the wind groove passes through the fan air-out that the front end was installed, the bearing structure to motor A has been constituteed jointly to the base with the fan, motor A installs the front side at the base, and motor A's rear side installs the screw rod, motor A is used for the driving screw to rotate, the inboard fixedly connected with pedestal of fan, longitudinal groove has been seted up on the bottom face of pedestal, and the sliding connection of the longitudinal inslot portion that the pedestal bottom was seted up has the slider.

Optionally, an adsorption block is installed inside the guide frame, the adsorption block has magnetism, and the adsorption block is used for adsorbing automobile components, a longitudinal groove is formed in a linear array on the top end face of the base body, the longitudinal groove formed in the top end of the base body is used for slidably moving the base, two movable bases are slidably connected in opposite directions inside each longitudinal groove formed in the base body, the movable bases are connected with the base body through springs, the movable bases have magnetism, and the movable bases are matched with the electromagnetic frame.

Optionally, the inside of the moving seat is provided with a notch, a guide shaft is mounted inside the notch formed in the moving seat, a telescopic rod is sleeved outside the guide shaft, a guide ball is mounted on one side, away from the guide shaft, of the telescopic rod, the telescopic rod and the guide ball jointly form a guide structure, a rotating shaft is mounted inside the moving seat, and the rotating shaft protrudes upwards to move the moving seat and is connected with the electric push rod B.

Optionally, every two transversely adjacent sliders are in one group, the inner side of each slider group is fixedly connected with an electromagnetic frame, screw holes matched with the screws are formed in the electromagnetic frame, the motor A, the screws and the electromagnetic frame jointly form a clamping driving structure, the rear side of the fan is fixedly connected with a support, and the top end of a transverse component in the support is provided with a motor B.

Optionally, a pressing plate is mounted on the top end face of the electric push rod B and used for pressing and attaching automobile parts, a connecting pipe is mounted on the rear side of the buffering air bag, an attaching air bag is mounted on the bottom end face of the pressing plate and connected with the buffering air bag through the connecting pipe, and the pressing plate and the attaching air bag form a limiting structure together.

Optionally, the gear is installed to the outside of guide shaft, and the gear is equipped with two altogether, and two gears are in the engaged state, removes one side of seat and installs the distancer, and the distancer is laser range finder, and removes the internally mounted of seat and have the gag lever post, and the gag lever post is equipped with two altogether, and two gag lever posts produce magnetism through the circular telegram and expand the state to the gag lever post is used for spacing telescopic link to remove.

Optionally, the range finder is electrically connected with the limiting rod, the top end of the moving seat is provided with the buffering air bag, the buffering air bag is filled with buffering gas, the center of the buffering air bag is provided with the electric push rod B, the front end of the buffering air bag is provided with the pressure sensor, and the pressure sensor is electrically connected with the electric push rod B.

Optionally, electric putter a is installed to motor B's bottom, and the mounting bracket is installed to electric putter a's bottom, and the recess has been seted up to the inside of mounting bracket, and the internally mounted of recess has the connecting rod in the mounting bracket, and the connecting rod is equipped with two altogether, and two connecting rods are the opposite direction installation to the leading frame is all installed to the bottom of two connecting rods, and the internally mounted of leading frame has the guide pulley.

Advantageous effects

According to the limiting bracket of the embodiment of the invention, compared with the traditional limiting bracket, when the pressure sensor arranged on the front side of the buffering air bag moves towards one side of the workpiece along with the moving seat, only when the pressure sensor arranged in the buffering air bag detects that the moving seat is close to the workpiece to a proper degree, the electric push rod B arranged on the top end of the moving seat can be started to pull the pressing plate downwards until the pressing plate is attached and clamped with the workpiece, when the workpiece needs to be subjected to steering processing operation, the moving seat is indirectly driven to be separated from the workpiece through the driving of the screw rod by the motor A, then the mounting frame and the connecting rod are pushed downwards through the starting of the electric push rod A arranged on the bottom side of the motor B, when the connecting rod moves downwards, the roller arranged in the guide frame arranged on the bottom side of the connecting rod can guide the adsorption block in contact with the workpiece, and after the workpiece is adsorbed by the adsorption block, the workpiece is lifted by the electric push rod A, the motor B is used for steering adjustment of the workpiece.

In addition, when the telescopic rod moves towards one side of a workpiece along with the moving seat, the guide ball arranged on one side of the telescopic rod contacts with the workpiece placed on the seat body firstly, the telescopic rod can drive the guide shaft arranged in the moving seat to rotate through the guide of the guide ball, and the gear arranged on the outer side of the guide shaft is meshed with the gear arranged on the outer side of the rotating shaft on the bottom side of the electric push rod B to synchronously drive the pressing plate arranged on the top end of the electric push rod B to automatically turn over, so that the purpose of automatically and adaptively clamping according to the difference of the current bevel edge position of the workpiece is achieved.

In addition, in the invention, when the two electromagnetic frames move inwards along the longitudinal groove formed at the bottom end of the seat body through the sliding blocks fixedly connected with the outer sides of the two electromagnetic frames, the moving seat can be synchronously driven to automatically and adaptively clamp the special parts placed on the seat body, after the moving seat moves to a proper position, the electric push rod B arranged at the top end of the moving seat is started to drive the pressing plate downwards, and after the pressing plate carries out automatic limiting and clamping work on the special parts placed on the seat body, normal welding work can be started.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to only some embodiments of the invention and are not intended to limit the invention.

In the drawings:

FIG. 1 is a schematic diagram of a front side view of a spacing bracket according to an embodiment of the invention in a partially disassembled state;

FIG. 2 is a schematic diagram of a top side view of a partially disassembled position of a spacing bracket according to an embodiment of the invention;

FIG. 3 is a schematic view showing an assembling structure of a spacing bracket according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a holder-to-suction block display configuration of a spacing holder according to an embodiment of the invention;

FIG. 5 shows a schematic view of a base-to-slide display structure of a spacing bracket according to an embodiment of the invention;

FIG. 6 is a schematic view of a base-to-seat display structure of a spacing bracket according to an embodiment of the invention;

FIG. 7 illustrates a schematic view of a moving bed of a spacing bracket to a spacing rod display structure according to an embodiment of the invention;

FIG. 8 is a schematic view of a bump down balloon to press-on balloon display structure of a spacing bracket according to an embodiment of the invention;

FIG. 9 shows a schematic view of an enlarged configuration at A in FIG. 2 of a spacing bracket according to an embodiment of the invention;

FIG. 10 shows a schematic view of an enlarged configuration at B in FIG. 2 of a spacing bracket according to an embodiment of the invention;

list of reference numerals

1. A base; 2. a fan; 3. an air duct; 4. a motor A; 5. a screw; 6. an electromagnetic frame; 7. a slider; 8. a support; 9. a motor B; 10. an electric push rod A; 11. a mounting frame; 12. a connecting rod; 13. a guide frame; 14. an adsorption block; 15. a base body; 16. a movable seat; 17. a guide shaft; 18. a telescopic rod; 19. conducting beads; 20. a gear; 21. a range finder; 22. a limiting rod; 23. a buffer air bag; 24. an electric push rod B; 25. a pressure sensor; 26. taking over the pipe; 27. pressing a plate; 28. the air bag is pressed.

Detailed Description

In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference numerals in the drawings denote like elements.

A first embodiment;

please refer to fig. 1 to 10:

the invention provides a welding limiting bracket for manufacturing special parts of an automobile, which comprises: the base 1, the main part of base 1 is the rectangle structure, and base 1 is equipped with two altogether, and fixedly connected with fan 2 on the top face of two bases 1, fan 2 is the frame structure, and seted up wind groove 3 on the top face of fan 2, wind groove 3 passes through the fan 2 air-out that the front end was installed, base 1 has constituteed the bearing structure to motor A4 with fan 2 jointly, motor A4 installs the front side at base 1, and motor A4's rear side installs screw rod 5, motor A4 is used for driving screw rod 5 to rotate, the inboard fixedly connected with pedestal 15 of fan 2, longitudinal groove has been seted up on the bottom face of pedestal 15, and the longitudinal groove inside sliding connection who sets up in the pedestal 15 bottom has slider 7, install clamp plate 27 on the top face of electric putter B24, clamp plate 27 is used for pressing the car part, cushion gasbag 23's rear side installs 26, install on clamp plate 27's the bottom face and press and attach gasbag 28, and press and attach gasbag 23 with pressing 26 and be connected, clamp plate 27 has constituteed limit structure jointly.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to fig. 3, every two laterally adjacent sliders 7 are in a group, and an electromagnetic frame 6 is fixedly connected to an inner side of each group of sliders 7, a screw hole matched with the screw rod 5 is formed in the electromagnetic frame 6, and the motor A4, the screw rod 5 and the electromagnetic frame 6 together form a clamping driving structure, the rear side of the fan 2 is fixedly connected with a bracket 8, a motor B9 is installed at a top end of a lateral member in the bracket 8, an electric push rod a10 is installed at a bottom end of the motor B9, an installation frame 11 is installed at a bottom end of the electric push rod a10, a groove is formed in the installation frame 11, a connecting rod 12 is installed in the groove in the installation frame 11, the connecting rod 12 is provided with two positions in total, and the two connecting rods 12 are installed in opposite directions, and a guide frame 13 is installed at bottom ends of the two connecting rods 12, a guide wheel is installed in the guide frame 13, when the moving toward one side of the workpiece along with the moving seat 16, the moving seat, the moving ball 19 is installed at an outer side of the moving seat, the guide wheel is installed at an outer side of the moving seat, the guide ball 19, and the guide wheel is automatically operated by rotating along with the rotating shaft 17 of the moving shaft 17, and the rotating shaft 17, so as to rotate, and the rotating shaft 17, the rotating shaft 17, and the moving seat, so as the moving shaft 17, the moving shaft is automatically operates to perform a workpiece.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to 7, when the suction block 14 is installed inside the guide frame 13, the suction block 14 has magnetism, and the suction block 14 is used for sucking automobile components, the top end surface of the seat body 15 is provided with longitudinal grooves in a linear array, and the longitudinal groove formed at the top end of the seat body 15 is used for sliding the movable seat 16, two movable seats 16 are connected in a sliding manner in each longitudinal groove formed on the seat body 15 in an opposite direction, the movable seat 16 is connected with the seat body 15 through a spring, and the movable seat 16 has magnetism, and the movable seat 16 is matched with the electromagnetic frame 6, the movable seat 16 is provided with a notch in the interior thereof, and the guide shaft 17 is installed in the notch formed in the movable seat 16, the outer side of the guide shaft 17 is sleeved with the telescopic rod 18, the guide bead 19 is installed on the telescopic rod 18 on the side far from the guide shaft 17, the telescopic rod 18 and the guide bead 19 jointly form a guide structure, the movable seat 16 is installed in the interior thereof, the rotary shaft protrudes upward from the movable seat 16 and is connected with the electric push rod B24, and when the two electromagnetic frames 6 are installed on the lower end of the movable seat 15 and the lower end of the movable seat 15, the movable seat 16 is driven by the special groove, and the special movable seat 16, the movable seat 16 is driven by the special clamp plate 27, and the special movable seat 16, and the movable seat is moved to the movable seat.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to 10, a gear 20 is installed on an outer side of a guide shaft 17, the gear 20 has two positions in total, the two gears 20 are in a meshed state, a distance meter 21 is installed on one side of a moving seat 16, the distance meter 21 is a laser distance meter, a limit rod 22 is installed inside the moving seat 16, the limit rod 22 has two positions in total, the two limit rods 22 are in a magnetic unfolding state by being energized, the limit rod 22 is used for limiting the movement of a telescopic rod 18, the distance meter 21 is electrically connected with the limit rod 22, a cushion air bag 23 is installed on a top end of the moving seat 16, the cushion air bag 23 is filled with a cushion gas, an electric push rod B24 is installed at a center position of the cushion air bag 23, a pressure sensor 25 is installed at a front end of the cushion air bag 23, the pressure sensor 25 is electrically connected with the electric push rod B24, when the pressure sensor 25 installed at the front end of the cushion air bag 23 moves toward one side of a workpiece along with the moving seat 16, only when the pressure sensor 25 installed in the buffer air bag 23 detects that the moving seat 16 is close to the workpiece to a proper degree, the pressure plate 27 can be pulled downwards by starting the electric push rod B24 installed at the top end of the moving seat 16 until the pressure plate is attached to and clamped with the workpiece, when the workpiece needs to be turned, the moving seat 16 can be indirectly driven to be separated from the workpiece by driving the screw 5 by the motor A4, then the mounting frame 11 and the connecting rod 12 are pushed downwards by starting the electric push rod a10 installed at the bottom side of the motor B9, when the connecting rod 12 moves downwards, the adsorption block 14 can be guided by contact of the rollers installed inside the guide frame 13 installed at the bottom side of the connecting rod 12 and the workpiece can be lifted by the electric push rod a10 after the workpiece is adsorbed by the adsorption block 14, and then the workpiece is rotated by the motor B9 The direction can be adjusted.

The specific use mode and function of the embodiment are as follows: in the invention, when the special parts of the automobile need to be welded, the special parts of the automobile can be placed on the seat body 15 fixedly connected in the base 1 in advance, and then the fan 2 arranged at the top end of the base 1 is started to blow air upwards through the air duct 3 arranged at the top end of the fan 2;

when the fan 2 arranged at the top end of the base 1 blows air upwards through the air groove 3 formed at the top end of the fan, an air curtain is formed in the welding environment of the special part arranged on the base body 15 for shielding, so that the special part arranged on the base body 15 can effectively isolate external dust during welding operation and spark generated during internal welding operation from splashing to affect surrounding personnel, and the purpose of accurate welding is achieved;

when the special component is placed on the seat body 15, if the special component needs to be clamped and limited, the screw rod 5 can be driven to rotate by starting the motor A4 arranged at the front end of the base 1, and the moving seat 16 which is connected in a sliding manner in the longitudinal groove formed at the top end of the seat body 15 can be synchronously adsorbed by the screw rod 5 and the transmission connection of the electromagnetic frame 6 fixedly connected to the inner side of the sliding block 7;

when the two electromagnetic frames 6 move inwards along the longitudinal groove formed at the bottom end of the seat body 15 through the sliding blocks 7 fixedly connected with the outer sides of the two electromagnetic frames, the two electromagnetic frames can synchronously drive the moving seat 16 to perform automatic self-adaptive clamping operation towards the special part placed on the seat body 15, and after the moving seat 16 moves to a proper position, the electric push rod B24 arranged at the top end of the moving seat 16 is started to drive the pressing plate 27 downwards, and after the automatic limiting clamping operation is performed on the special part placed on the seat body 15 through the pressing plate 27, normal welding operation can be started.

Second embodiment

Based on the welding limit bracket for manufacturing the special parts of the automobile provided by the first embodiment, the self-adaptive clamping operation of the special parts can be realized by means of the fan 2, the air duct 3, the motor A4, the screw 5, the electromagnetic frame 6, the sliding block 7, the bracket 8 and the motor B9, but the purpose of self-adaptive clamping of the special-shaped side of the special-shaped workpiece cannot be solved in the practical application process, and in order to solve the problems, the device is further provided with an electric push rod A10, an installation frame 11, a connecting rod 12, a guide frame 13, an adsorption block 14, a seat body 15, a movable seat 16, a guide shaft 17, an expansion rod 18 and a guide bead 19;

in addition, according to the embodiment of the present invention, as shown in fig. 1 to 7, an absorption block 14 is installed inside the guide frame 13, the absorption block 14 has magnetism, the absorption block 14 is used for absorbing automobile components, a longitudinal groove is formed in a linear array on the top end surface of the seat body 15, the longitudinal groove formed on the top end of the seat body 15 is used for sliding the movable seat 16, two movable seats 16 are connected in a sliding manner in each longitudinal groove formed on the seat body 15 in an opposite direction, the movable seat 16 is connected with the seat body 15 through a spring, the movable seat 16 has magnetism, the movable seat 16 is matched with the electromagnetic frame 6, a groove is formed inside the movable seat 16, a guide shaft 17 is installed inside the groove formed in the movable seat 16, a telescopic rod 18 is sleeved outside the guide shaft 17, a guide bead 19 is installed on one side of the telescopic rod 18 far from the guide shaft 17, the telescopic rod 18 and the guide bead 19 jointly form a guide structure, a rotating shaft is installed inside the movable seat 16, and the rotating shaft protrudes upwards out of the movable seat 16 and is connected with the electric push rod B24.

When the clamping and limiting device is used, when special parts placed on the seat body 15 need to be subjected to welding operation, the clamping and limiting device can rotate and drive the screw rod 5 by starting the motor A4 arranged at the front end of the base 1, and synchronously drive the moving seat 16 connected to the top end of the seat body 15 in a sliding manner through the driving connection of the screw rod 5 and the electromagnetic frame 6 and simultaneously draw close the moving seat to the inner side through the electromagnetic frame 6 so as to clamp a workpiece placed on the seat body 15;

when the moving seat 16 approaches to a workpiece placed at the top end of the seat body 15, firstly, whether the current workpiece has a bevel edge or not is detected through the distance measuring device 21 installed in the moving seat 16, if the data measured by the two distance measuring devices 21 are consistent, it is indicated that one side of the workpiece located at the inner side of the moving seat 16 is in a planar state, and when the data measured in the two distance measuring devices 21 are different, the corresponding limiting rod 22 installed at the bottom side of the moving seat 16 is started to be electrified and then popped up to limit the steering of the telescopic rod 18 installed at the outer side of the guide shaft 17;

when the movable base 16 moves towards one side of the workpiece, the guide ball 19 arranged on one side of the telescopic rod 18 contacts with the workpiece arranged on the base body 15 at first, the telescopic rod 18 can drive the guide shaft 17 arranged in the movable base 16 to rotate through the guide of the guide ball 19, and the gear 20 arranged on the outer side of the guide shaft 17 is meshed with the gear 20 arranged on the outer side of the rotating shaft on the bottom side of the electric push rod B24 to synchronously drive the pressure plate 27 arranged on the top end of the electric push rod B24 to perform automatic overturning operation, so that the purpose of performing automatic self-adaptive clamping operation according to different current bevel edge positions of the workpiece is achieved.

Third embodiment

Based on the welding limit bracket for manufacturing the special parts of the automobile provided by the second embodiment, the purpose of self-adaptive clamping of the special-shaped side of the special-shaped workpiece can be realized by means of the electric push rod A10, the mounting frame 11, the connecting rod 12, the guide frame 13, the adsorption block 14, the base body 15, the moving seat 16, the guide shaft 17, the expansion link 18 and the guide bead 19, but the device still cannot perform rapid steering adjustment welding operation aiming at the special-shaped workpiece in the practical application process, and in order to solve the problems, the device is further provided with a gear 20, a distance measurer 21, a limiting rod 22, a buffer air bag 23, an electric push rod B24, a pressure sensor 25, a connecting pipe 26, a pressure plate 27 and a pressure-attaching air bag 28;

in addition, according to the embodiment of the present invention, as shown in fig. 1 to 7, an adsorption block 14 is installed inside the guide frame 13, the adsorption block 14 has magnetism, the adsorption block 14 is used for adsorbing automobile components, a longitudinal groove is formed in a linear array on a top end surface of the seat body 15, the longitudinal groove formed on the top end of the seat body 15 is used for sliding the movable seat 16, two movable seats 16 are connected in a sliding manner in each longitudinal groove formed on the seat body 15, the movable seat 16 is connected with the seat body 15 through a spring, the movable seat 16 has magnetism, the movable seat 16 is matched with the electromagnetic frame 6, a slot is formed inside the movable seat 16, a guide shaft 17 is installed inside the slot formed in the movable seat 16, a telescopic rod 18 is sleeved outside the guide shaft 17, a guide bead 19 is installed on one side of the telescopic rod 18 far from the guide shaft 17, the telescopic rod 18 and the guide bead 19 jointly form a guide structure, a rotating shaft is installed inside the movable seat 16, and protrudes upwards out of the movable seat 16 and is connected with the electric push rod B24.

When the movable seat 16 approaches a workpiece placed on the seat body 15, the buffer air bag 23 arranged at the top end of the movable seat 16 is contacted with the workpiece, when the buffer air bag 23 moves and contracts towards the workpiece along with the movable seat 16, the buffer air in the buffer air bag 23 is supplied to the inside of the pressure attaching air bag 28 arranged at the bottom side of the pressure plate 27 through the connecting pipe 26, and the pressure plate 27 is contacted with the workpiece more softly through the expansion of the pressure attaching air bag 28, so as to achieve the purpose of reducing the damage to the workpiece as much as possible;

and when the pressure sensor 25 installed on the front side of the buffer air bag 23 moves towards one side of the workpiece along with the moving seat 16, the pressure plate 27 can be pulled downwards until the pressure is attached and clamped with the workpiece by starting the electric push rod B24 installed on the top end of the moving seat 16 only when the pressure sensor 25 installed in the buffer air bag 23 detects that the moving seat 16 is close to the workpiece to a proper degree;

when the workpiece needs to be steered, the motor A4 drives the screw 5 to indirectly drive the moving seat 16 to be separated from the workpiece, then the electric push rod a10 installed at the bottom side of the motor B9 is started to push the installation frame 11 and the connecting rod 12 downwards, and when the connecting rod 12 moves downwards, the adsorption block 14 can be guided by the contact between the rollers installed inside the guide frame 13 installed at the bottom side of the connecting rod 12 and the workpiece, and after the workpiece is adsorbed by the adsorption block 14, the electric push rod a10 lifts the workpiece and then the steering adjustment of the workpiece can be performed by the motor B9.

Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. The utility model provides a spacing support of welding for automobile special parts manufacturing which characterized in that includes: base (1), the main part of base (1) is the rectangle structure, and base (1) is equipped with two altogether, and fixedly connected with fan (2) on the top face of two base (1), fan (2) are frame structure, and air duct (3) have been seted up on the top face of fan (2), fan (2) air-out that air duct (3) were installed through the front end, base (1) and fan (2) have constituteed the bearing structure to motor A (4) jointly, the front side at base (1) is installed in motor A (4), and screw rod (5) are installed to the rear side of motor A (4), motor A (4) are used for driving screw rod (5) to rotate, the inboard fixedly connected with pedestal (15) of fan (2), vertical groove has been seted up on the bottom face of pedestal (15), and the vertical inslot portion sliding connection that pedestal (15) bottom was seted up has slider (7).

2. A welding position-limiting bracket for manufacturing a special part of an automobile as set forth in claim 1, wherein: every two places are transversely adjacent slider (7) are a set of, and inboard fixedly connected with electromagnetism frame (6) of every slider of group (7), and screw rod (5) assorted screw has been seted up to the inside of electromagnetism frame (6), and motor A (4) and screw rod (5) and electromagnetism frame (6) have constituteed jointly and have pressed from both sides tight drive structure, rear side fixedly connected with support (8) of fan (2), and motor B (9) are installed on the top of horizontal component in support (8).

3. A welding limit bracket for manufacturing a special part of an automobile according to claim 2, wherein: electric putter A (10) are installed to the bottom of motor B (9), and mounting bracket (11) are installed to the bottom of electric putter A (10), and the inside of mounting bracket (11) is seted up flutedly, and the internally mounted of recess has connecting rod (12) in mounting bracket (11), and connecting rod (12) are equipped with two altogether, and two connecting rod (12) are the subtend installation, and guide frame (13) are all installed to the bottom of two connecting rod (12), and the internally mounted of guide frame (13) has the guide pulley.

4. A welding position-limiting bracket for manufacturing a special part of an automobile as set forth in claim 3, wherein: the inside mounting of guide frame (13) has adsorption block (14), adsorption block (14) have magnetism, and adsorption block (14) are used for adsorbing automobile parts, it has seted up vertical groove to be linear array on the top face of pedestal (15), and the vertical groove that pedestal (15) top was seted up is used for sliding movement seat (16), every department vertical inslot portion of seting up on pedestal (15) is opposite direction sliding connection and has two places to remove seat (16), remove through spring coupling between seat (16) and pedestal (15), and remove seat (16) and have magnetism, and remove seat (16) and electromagnetism frame (6) phase-match.

5. A welding limit bracket for manufacturing special parts of an automobile according to claim 4, characterized in that: the inside of removing seat (16) has been seted up and has been lacked the groove, and the lacked inslot internally mounted who sets up in removing seat (16) has guide shaft (17), telescopic link (18) have been cup jointed in the outside of guide shaft (17), one side of keeping away from guide shaft (17) in telescopic link (18) is installed and is led pearl (19), telescopic link (18) and lead pearl (19) have constituteed guide structure jointly, the internally mounted who removes seat (16) has the pivot, the pivot is upwards the protrusion and is removed seat (16) and be connected with electric putter B (24).

6. A welding limit bracket for manufacturing special parts of an automobile according to claim 5, characterized in that: gear (20) are installed in the outside of guide shaft (17), gear (20) are equipped with two places altogether, and two gear (20) are in the engaged state, distancer (21) are installed to one side of removing seat (16), distancer (21) are laser range finder, and the internally mounted who removes seat (16) has gag lever post (22), gag lever post (22) are equipped with two places altogether, and two gag lever posts (22) produce the magnetism state of expandeing through the circular telegram, and gag lever post (22) are used for spacing telescopic link (18) to remove.

7. The welding limit bracket for manufacturing the special part of the automobile as set forth in claim 6, wherein: the range finder (21) is connected with the gag lever post (22) electrical property, removes the top of seat (16) and installs buffering gasbag (23), and the inside packing of buffering gasbag (23) has buffer gas, and the central point of buffering gasbag (23) puts and installs electric putter B (24), and pressure sensor (25) are installed to the front end of buffering gasbag (23), and pressure sensor (25) are connected with electric putter B (24) electrical property.

8. A welding position limiting bracket for manufacturing a special part of an automobile as set forth in claim 7, wherein: the automobile safety protection device is characterized in that a pressing plate (27) is installed on the top end face of the electric push rod B (24), the pressing plate (27) is used for pressing and attaching automobile parts, a connecting pipe (26) is installed on the rear side of the buffering air bag (23), an attaching air bag (28) is installed on the bottom end face of the pressing plate (27), the attaching air bag (28) is connected with the buffering air bag (23) through the connecting pipe (26), and the pressing plate (27) and the attaching air bag (28) jointly form a limiting structure.