阅读说明：本技术 一种新型全铝车身焊接定位工装 (Novel all-aluminum automobile body welding positioning tool ) 是由 孙振峰 于 2021-09-03 设计创作，主要内容包括：本发明公开了车身焊接定位技术领域的一种新型全铝车身焊接定位工装,包括两个输送轨,两个所述输送轨内侧均开设有第一滑槽,所述第一滑槽内共同滑动连接有滑动杆,所述滑动杆左侧通过气弹簧与第一滑槽内壁弹性连接,所述第一滑槽内右侧设有对滑动杆进行限位的限位机构；本发明在车身向工位进行移动的过程中对车身各个方向进行夹持,整个过程不再需要人工通过夹具将车身从各个位置进行夹持,一方面有利于简化工人的操作,节省时间,提高生产效率,另一方面人工操作简便,降低工作时的风险,并且在焊接结束后,通过利用顶动杆,使夹持件解除对车身的夹持,并且能恢复原位,从而实现循环工作,不需要人工进行复位,进行一步简化人工的操作。(The invention discloses a novel all-aluminum vehicle body welding positioning tool in the technical field of vehicle body welding positioning, which comprises two conveying rails, wherein the inner sides of the two conveying rails are respectively provided with a first sliding chute, a sliding rod is connected in the first sliding chutes in a sliding manner, the left side of the sliding rod is elastically connected with the inner wall of the first sliding chute through an air spring, and the right side in the first sliding chute is provided with a limiting mechanism for limiting the sliding rod; the clamping device clamps the vehicle body in all directions in the process of moving the vehicle body to the station, does not need manual clamping of the vehicle body from all positions through a clamp in the whole process, is beneficial to simplifying operation of workers, saves time and improves production efficiency, is simple and convenient to operate manually, reduces risks in working, releases clamping of the clamping piece on the vehicle body through the ejector rod after welding is finished, and can restore the original position, so that circular working is realized, manual resetting is not needed, and manual operation is simplified in one step.)

1. The utility model provides a novel full aluminium automobile body welding position frock, includes two delivery rails (1), its characterized in that: the inner sides of the two conveying rails (1) are respectively provided with a first sliding chute (2), the inside of the first sliding chute (2) is jointly connected with a sliding rod (3) in a sliding manner, the left side of the sliding rod (3) is elastically connected with the inner wall of the first sliding chute (2) through an air spring (4), the inner right side of the first sliding chute (2) is provided with a limiting mechanism for limiting the sliding rod (3), the bottom of the sliding rod (3) is fixedly connected with two first pulling rods (5), the two first pulling rods (5) are respectively positioned at the inner side positions of the two conveying rails (1), the right ends of the two first pulling rods (5) are respectively and fixedly connected with a sliding block (6), the surface of the sliding block (6) is provided with a through groove (7), the inside of the through groove (7) is elastically and slidably connected with a pushing plate (9) through a first spring (8), the upper end of the pushing plate (9) extends to the upper position of the conveying rails (1), two conveying rails (1) are respectively provided with second sliding grooves (10) at the front end and the rear end of a pushing plate (9), the right ends of the two second sliding grooves (10) are bent towards the lower side, the middle positions of the two first pulling rods (5) are respectively provided with a part of first teeth (11), the bottoms of the two conveying rails (1) are respectively and rotatably connected with a rotating shaft (12), one ends of the two rotating shafts (12) close to the first teeth (11) are respectively and fixedly connected with first gears (13), the first gears (13) can be meshed with the first teeth (11), one ends of the rotating shafts (12) far away from the first teeth (11) extend to the outer side of the conveying rails (1) and are respectively and fixedly connected with sliding sleeves (15) at the positions corresponding to the second gears (14), and door-shaped driving plates (16) are respectively and slidably connected in the two sliding sleeves (15), the inner side of the driving plate (16) is provided with second teeth (17), the second teeth (17) are meshed with a second gear (14), the driving plate (16) is fixedly connected with a clamping plate (18), the right side of the first pulling rod (5) is bent towards the upper side, third sliding grooves (19) are formed in the inner sides of the two conveying rails (1), moving blocks (21) elastically slide in the two third sliding grooves (19) through second springs (20), a rotating rod (22) is connected between the two moving blocks (21) in a rotating mode, the surface of the rotating rod (22) is fixedly connected with two third gears (23) and two supporting rods (24), the third gears (23) are located on the surface of the two moving blocks (21), the two supporting rods (24) are located on the inner sides of the two third gears (23) and are bent at the upper ends, and a squeezing plate (25) is fixedly connected between the two supporting rods (24), two moving blocks (21) are connected with racks (26) in a sliding mode on one sides close to the third gears (23), two ends of each rack (26) are not provided with teeth, two ends of each rack are bent downwards, the two racks (26) are respectively meshed with the two third gears (23), and supporting mechanisms for supporting the car body are arranged on the outer sides of the two conveying rails (1).

2. The novel all-aluminum vehicle body welding positioning tool of claim 1, characterized in that: stop gear includes spacing draw-in groove (27), spacing draw-in groove (27) have two and set up respectively at the front and back both ends of slide bar (3), two first recess (28) have all been seted up on first spout (2) inner wall right side, two there are stopper (30) through third spring (29) elastic sliding connection in first recess (28), stopper (30) tip is the inclined plane, chute (31) have been seted up on stopper (30) surface, chute (31) one side is the inclined plane, through-hole (32) have been seted up to first recess (28) bottom correspondence chute (31) position, sliding connection has ejector rod (33) in through-hole (32), ejector rod (33) through fourth spring (34) with carry rail (1) bottom elastic connection.

3. The novel all-aluminum vehicle body welding positioning tool of claim 2, characterized in that: the supporting mechanism comprises two auxiliary plates (35), the two auxiliary plates (35) are respectively and fixedly connected to the front side and the rear side of the two conveying rails (1), annular circulating grooves (36) are formed in the surfaces of the two auxiliary plates (35), the middle positions of the circulating grooves (36) deviate towards the position close to the pushing plate (9), sliding blocks (37) are connected in the circulating grooves (36) in a sliding mode, supporting blocks (38) are fixedly connected to the upper ends of the sliding blocks (37), the left sides of the supporting blocks (38) are arc-shaped, arc-shaped plates (39) are elastically connected to the surfaces of the supporting blocks (38), the left sides of the supporting blocks (38) are elastically connected with the left sides of the auxiliary plates (35) through fifth springs (40), pushing rods (41) are fixedly connected to the right sides of the supporting blocks (38), and pulling hooks (42) are elastically and slidably connected to the front sides of the right ends of the pushing rods (41), the utility model discloses a conveying rail, including promotion board (9), pulling bar (43), joint groove (44), conveying rail (1) surface has been seted up and has been stepped down groove (45), the pulling is colluded (42) front end and is the inclined plane, promotion board (9) tip corresponds the pulling and colludes (42) position fixedly connected with second pulling bar (43), second pulling bar (43) tip is close to the pulling and has colluded (42) one side and has seted up joint groove (44), joint groove (44) one side is the inclined plane, second pulling bar (43) left side is the inclined plane, the groove of stepping down (45) have been seted up on conveying rail (1) surface, step down groove (45) are located second spout (10) right side position.

4. The novel all-aluminum vehicle body welding positioning tool of claim 3, characterized in that: the right side of the extrusion plate (25) is elastically connected with a rubber protection plate (46).

5. The novel all-aluminum vehicle body welding positioning tool of claim 4, characterized in that: carry rail (1) surface to correspond fourth spout (47) have been seted up to the left side position of groove of stepping down (45), fourth spout (47) and groove of stepping down (45) intercommunication, sliding connection has in fourth spout (47) blocks pole (48), it has two sections connecting rods (49) to block that pole (48) left side is articulated, two sections connecting rod (49) left side is articulated with fourth spout (47) inner wall, fourth spout (47) correspond two sections connecting rods (49) intermediate position fixedly connected with sixth spring (50).

6. The novel all-aluminum vehicle body welding positioning tool of claim 5, characterized in that: the right side of the inner wall of the annular groove is fixedly connected with a blocking block (51), one side of the blocking block (51) is an inclined plane, and one side, close to the blocking block (51), of the sliding block (37) is an inclined plane.

Technical Field

The invention relates to the technical field of welding and positioning of vehicle bodies, in particular to a novel all-aluminum vehicle body welding and positioning tool.

Background

In recent years, automobile manufacturing technology is continuously developed, automobile manufacturers pay more and more attention to the research and development of automobile manufacturing technology while vigorously developing new automobile types, and positioning clamps of automobile body frameworks play an important role in the automobile manufacturing process; aluminum materials, which are called "light metals", are the preferred materials for automobile bodies due to their light weight, wear resistance, corrosion resistance, excellent impact resistance, good formability, high recyclability, and the like. The aluminum automobile body also has the advantages of energy conservation, low consumption, safety, comfort, strong relative load capacity and the like.

Prior art is before welding the automobile body, generally with the automobile body transfer to operating position, the manual work utilizes anchor clamps to fix the centre gripping with the automobile body from each position afterwards, then welds, needs the manual work again to demolish the anchor clamps after the welding, and whole process is loaded down with trivial details and waste time and energy to the manual work carries out the centre gripping to the automobile body and takes place danger easily.

Based on the technical scheme, the invention designs a novel all-aluminum vehicle body welding positioning tool to solve the problems.

Disclosure of Invention

The invention aims to provide a novel all-aluminum vehicle body welding positioning tool, and aims to solve the problems that in the prior art, before a vehicle body is welded, the vehicle body is generally transferred to a working position, then the vehicle body is fixedly clamped from each position by using a clamp manually, then the vehicle body is welded, after the welding is finished, the clamp needs to be disassembled manually, the whole process is complicated, time and labor are wasted, and the vehicle body is easy to be clamped by the clamp manually and dangerous.

In order to achieve the purpose, the invention provides the following technical scheme: a novel all-aluminum vehicle body welding and positioning tool comprises two conveying rails, wherein first sliding grooves are formed in the inner sides of the two conveying rails, a sliding rod is connected into the first sliding grooves in a sliding mode, the left side of the sliding rod is elastically connected with the inner wall of the first sliding groove through an air spring, a limiting mechanism for limiting the sliding rod is arranged on the right side in the first sliding groove, two first pulling rods are fixedly connected to the bottom of the sliding rod and are located at the inner sides of the two conveying rails, sliding blocks are fixedly connected to the right ends of the two first pulling rods, through grooves are formed in the surfaces of the sliding blocks, pushing plates are connected into the through grooves in a sliding mode through the first spring in an elastic mode, the upper ends of the pushing plates extend to the positions above the conveying rails, second sliding grooves are formed in the positions of the front ends and the rear ends of the two conveying rails corresponding to the pushing plates, and the right ends of the two second sliding grooves are bent towards the lower side, the middle positions of the two first pulling rods are respectively provided with a part of first teeth, the bottoms of the two conveying rails are respectively and rotatably connected with a rotating shaft, one ends of the two rotating shafts, which are close to the first teeth, are respectively and fixedly connected with a first gear, the first gear can be meshed with the first teeth, one end of the rotating shaft, which is far away from the first teeth, extends to the outer side of the conveying rails and is fixedly connected with a second gear, the outer sides of the two conveying rails are respectively and fixedly connected with a sliding sleeve corresponding to the position of the second gear, a door-shaped driving plate is respectively and slidably connected in the two sliding sleeves, the inner side of the driving plate is provided with a second tooth, the second tooth is meshed with the second gear, the driving plate is fixedly connected with a clamping plate, the right side of the first pulling rod is bent upwards, the inner sides of the two conveying rails are respectively provided with a third sliding groove, and a moving block is respectively and elastically slid in the two third sliding grooves through a second spring, a rotating rod is connected between the two moving blocks in a rotating mode, the surface of the rotating rod is fixedly connected with two third gears and two supporting rods, the third gears are located on the surfaces of the two moving blocks, the two supporting rods are located on the inner sides of the two third gears, the upper ends of the two supporting rods are bent, an extrusion plate is connected between the two supporting rods in a fixed mode, one sides of the two moving blocks, close to the third gears, are connected with racks in a sliding mode, the two ends of the racks are not provided with teeth, the two ends of the racks are bent downwards, the two racks are respectively meshed with the two third gears, and a supporting mechanism for supporting the automobile body is arranged on the outer sides of the two conveying rails;

the limiting mechanism comprises two limiting clamping grooves, the two limiting clamping grooves are respectively formed in the front end and the rear end of the sliding rod, first grooves are formed in the right sides of the inner walls of the two first sliding grooves, limiting blocks are elastically and slidably connected into the two first grooves through third springs, the end parts of the limiting blocks are inclined planes, inclined grooves are formed in the surfaces of the limiting blocks, one sides of the inclined grooves are inclined planes, through holes are formed in the positions, corresponding to the inclined grooves, of the bottoms of the first grooves, jacking rods are slidably connected into the through holes, and the jacking rods are elastically connected with the bottoms of the conveying rails through fourth springs;

during working, before a vehicle body is welded in the prior art, the vehicle body is generally moved to a working position, then the vehicle body is fixedly clamped from each position by using a clamp manually, then welding is carried out, after welding is finished, the clamp needs to be removed manually, the whole process is complicated, time and labor are wasted, and danger is easily caused when the vehicle body is clamped by manual work. The second gear drives the driving plate to move downwards through the second teeth, the clamping plate can clamp the automobile body from the middle position, the bent part at the tail end of the first pulling rod can pull the rack to move towards the right side while the clamping plate clamps the middle position of the automobile body, the third gear, the rotating rod and the supporting rod can rotate under the action of the rack so as to clamp the rear side of the automobile body, after the rack moves to the rightmost side in the continuous movement process of the automobile body, the moving block can move towards the right side under the action of the rack and the first pulling rod, the second spring is compressed, when the sliding rod moves to the position of the limiting block, the limiting clamping groove can be clamped with the limiting block, the sliding rod is limited, so that the whole automobile body is clamped and positioned, welding work is carried out subsequently, the automobile body is clamped in all directions in the process of moving to the station, and the whole process does not need manual clamping of the automobile body from all positions through a clamp any more, on the one hand is favorable to simplifying workman's operation, save time, improve production efficiency, on the other hand manual operation is simple and convenient, reduce the risk of during operation, after the welding, upwards promote the ejector rod, the inclined plane of ejector rod upper end can act on the inclined plane of chute, thereby make the stopper remove to the inboard, the spacing of slide bar is relieved, the automobile body removes to the right side, the slurcam can slide downwards in the second spout, the slurcam can break away from with the automobile body front side, the automobile body can be transferred to next station, the slide bar can resume the normal position under the effect of air spring, thereby realize cycle work, do not need the manual work to reset, carry out the manual operation of further simplification.

Because the aluminum material has low hardness, the stress point is single in the process that the automobile body drives the pushing plate to move, the automobile body is easy to deform, and in order to solve the problems, as a further scheme of the invention, the supporting mechanism comprises two auxiliary plates, the two auxiliary plates are respectively and fixedly connected to the front side and the rear side of the two conveying rails, annular circulating grooves are formed in the surfaces of the two auxiliary plates, the middle positions of the circulating grooves deviate towards the position close to the pushing plate, sliding blocks are connected in the circulating grooves in a sliding mode, supporting blocks are fixedly connected to the upper ends of the sliding blocks, the left sides of the supporting blocks are arc-shaped, arc-shaped plates are elastically connected to the surfaces of the supporting blocks, the left sides of the supporting blocks are elastically connected with the left sides of the auxiliary plates through fifth springs, pushing rods are fixedly connected to the right sides of the supporting blocks, and pulling hooks are elastically and slidably connected to the front sides of the right ends of the pushing rods, the front end of the pulling hook is an inclined plane, the end part of the pushing plate is fixedly connected with a second pulling rod corresponding to the position of the pulling hook, one side, close to the pulling hook, of the end part of the second pulling rod is provided with a clamping groove, one side of the clamping groove is an inclined plane, the left side of the second pulling rod is an inclined plane, the surface of the conveying rail is provided with a abdicating groove, and the abdicating groove is positioned at the right side position of the second sliding groove; when the automobile body is in work, the second pulling rod can move together with the pushing plate in the process that the automobile body drives the pushing plate to move, when the second pulling rod moves to the pulling hook position, the second pulling rod can drive the pulling hook, the pushing rod and the supporting block to move together, the supporting block can drive the sliding block to move in the circulating groove, the supporting block can move inwards under the action of the sliding block and the circulating groove, the supporting block and the arc-shaped plate can move to the hub position of the automobile body, the second pulling rod and the pulling hook can move inwards together, the inclined plane at the front end of the pulling hook can act on the inclined plane of the clamping groove, the second pulling rod and the supporting block can move backwards, the supporting block can provide certain supporting force for the automobile body in the process of moving the automobile body, the automobile body is prevented from deforming, the stress point is increased in the process of moving the automobile body, the stress is dispersed, the pushing plate can move downwards, and the second pulling rod is separated from the pulling hook, the supporting shoe can resume the normal position under the effect of fifth spring, and the second pulling rod can move the inslot of stepping down, avoids interfering with the automobile body, and when promoting the expanded metal can move the pulling and collude the position, the left inclined plane of second pulling rod can be used for the pulling to collude and make its rebound, is favorable to making the second pulling rod can stagger, avoids interfering.

In order to solve the problems, as a further scheme of the invention, the right side of the extrusion plate is elastically connected with a rubber protection plate; during operation, when the extrusion plate overturns to clamp the rear side of the automobile body, the protection plate can avoid the extrusion plate to directly contact the automobile body, and the rubber material can reduce the damage to the automobile body.

When the second pulling rod is positioned in the abdicating groove and the wheel hub position of the vehicle body moves to the abdicating groove, the second pulling rod moves upwards and collides with the vehicle body, so that the second pulling rod is damaged, in order to solve the above problems, as a further proposal of the invention, a fourth chute is arranged on the surface of the conveying rail corresponding to the left side position of the abdicating groove, the fourth chute is communicated with the abdicating groove, a blocking rod is connected in the fourth chute in a sliding manner, two sections of connecting rods are hinged on the left side of the blocking rod, the left sides of the two sections of connecting rods are hinged with the inner wall of the fourth chute, and a sixth spring is fixedly connected at the middle position of the fourth chute corresponding to the two sections of connecting rods; during operation, when the connecting rod position is moved to the automobile body right side, the connecting rod can rotate downwards under the effect of automobile body, the sixth spring is compressed, it blocks the groove and blocks to block the pole, later when the second pulling pole moves downwards, the connecting rod can be in automobile body wheel hub position, the connecting rod can be propped up under the effect of sixth spring, it no longer blocks to the groove of stepping down to block the pole, make the second pulling pole can enter into the groove of stepping down, when the wheel hub position of automobile body moves to the groove of stepping down position, the connecting rod can be pushed down under the effect of automobile body, it blocks the second pulling pole to block the pole, avoid the second pulling pole can the rebound bump, be favorable to the in-process second pulling pole that removes at the automobile body can be in the groove of stepping down.

When the sliding block and the supporting block can be reset, the sliding block and the supporting block can move from the groove rail close to one side of the vehicle body, so that the pulling hook collides with the vehicle body, the pulling hook is damaged, and the production process is influenced; during operation, the slider with the supporting shoe moves when the circulation groove right side, the inclined plane of slider can with the inclined plane laminating of block and slide, when slider and supporting shoe can recover, block the piece and can block the slider, avoid the slider from being close to automobile body one side and remove, be favorable to making the slider can keep away from automobile body one side normal position in the circulation inslot to increase the life that the pulling colluded, guarantee the process of production.

Compared with the prior art, the invention has the beneficial effects that:

1. the clamping device clamps the vehicle body in all directions in the process of moving the vehicle body to the station, does not need manual clamping of the vehicle body from all positions through a clamp in the whole process, is beneficial to simplifying operation of workers, saves time and improves production efficiency, is simple and convenient to operate manually, reduces risks in working, releases clamping of the clamping piece on the vehicle body through the ejector rod after welding is finished, and can restore the original position, so that circular working is realized, manual resetting is not needed, and manual operation is simplified in one step.

2. In the process that the vehicle body drives the push plate to move, the second pull rod is driven to move together, and the support block and the slide block are moved in the circulating groove by pulling the hook and the push rod, so that the support block can provide a certain supporting force for the vehicle body in the process of moving the vehicle body, the vehicle body is prevented from deforming, stress points are increased in the process of moving the vehicle body, and stress is dispersed.

3. According to the invention, the protection plate is arranged, when the extrusion plate is overturned to clamp the rear side of the vehicle body, the protection plate can prevent the extrusion plate from directly contacting the vehicle body, and the rubber material can reduce the damage of the vehicle body.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural view of the present invention after hiding the vehicle body;

FIG. 4 is a schematic sectional view of the overall structure of the present invention;

FIG. 5 is a schematic view of the position of the limiting groove according to the present invention;

FIG. 6 is a schematic structural view of the connection relationship between the limiting groove, the through hole, the limiting block and the ejector rod in the present invention;

FIG. 7 is a schematic structural view of the stopper and the ejector rod after explosion;

FIG. 8 is a schematic view of the structure of the support block and the auxiliary plate after explosion (the slider and the support block are cut away) in the present invention;

FIG. 9 is a schematic structural view of the second pulling rod and the pulling hook after explosion;

FIG. 10 is a schematic view of the connection between the first gear and the second gear according to the present invention;

fig. 11 is a schematic view showing the position of the blocking lever according to the present invention (the connecting lever is supported by the sixth spring).

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a conveying rail 1, a first chute 2, a sliding rod 3, an air spring 4, a first pulling rod 5, a sliding block 6, a through groove 7, a first spring 8, a pushing plate 9, a second chute 10, a first tooth 11, a rotating shaft 12, a first gear 13, a second gear 14, a sliding sleeve 15, a driving plate 16, a second tooth 17, a clamping plate 18, a third chute 19, a second spring 20, a moving block 21, a rotating rod 22, a third gear 23, a supporting rod 24, a squeezing plate 25, a rack 26, a limiting clamping groove 27, a first groove 28, a third spring 29, a limiting block 30, a chute 31, a through hole 32, a pushing rod 33, a fourth spring 34, an auxiliary plate 35, a circulating groove 36, a sliding block 37, a supporting block 38, an arc-shaped plate 39, a fifth spring 40, a pushing rod 41, a pulling hook 42, a second pulling rod 43, a clamping groove 44, a abdicating groove 45, a protecting plate 46, a fourth chute 47, a blocking rod 48, a connecting rod 49, Sixth spring 50, stop 51.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: a novel all-aluminum vehicle body welding and positioning tool comprises two conveying rails 1, wherein first sliding grooves 2 are formed in the inner sides of the two conveying rails 1, a sliding rod 3 is connected into the first sliding groove 2 in a sliding mode, the left side of the sliding rod 3 is elastically connected with the inner wall of the first sliding groove 2 through an air spring 4, a limiting mechanism for limiting the sliding rod 3 is arranged on the right side in the first sliding groove 2, two first pulling rods 5 are fixedly connected to the bottom of the sliding rod 3, the two first pulling rods 5 are located at the inner sides of the two conveying rails 1, sliding blocks 6 are fixedly connected to the right ends of the two first pulling rods 5, through grooves 7 are formed in the surfaces of the sliding blocks 6, pushing plates 9 are elastically and slidably connected into the through grooves 7 through first springs 8, the upper ends of the pushing plates 9 extend to the positions above the conveying rails 1, second sliding grooves 10 are formed in the positions, corresponding to the front ends and the rear ends of the pushing plates 9, the right ends of the two second sliding grooves 10 are bent obliquely downwards, the middle positions of the two first pulling rods 5 are respectively provided with a part of first teeth 11, the bottoms of the two conveying rails 1 are respectively and rotatably connected with a rotating shaft 12, one end of each of the two rotating shafts 12, which is close to the first teeth 11, is respectively and fixedly connected with a first gear 13, the first gear 13 can be meshed with the first teeth 11, one end of each of the rotating shafts 12, which is far away from the first teeth 11, extends to the outer side of the conveying rail 1 and is fixedly connected with a second gear 14, the outer sides of the two conveying rails 1 are respectively and fixedly connected with a sliding sleeve 15 corresponding to the position of the second gear 14, a door-shaped driving plate 16 is respectively and slidably connected in the two sliding sleeves 15, the inner side of the driving plate 16 is provided with a second tooth 17, the second tooth 17 is meshed with the second gear 14, the driving plate 16 is fixedly connected with a clamping plate 18, the right side of the first pulling rod 5 is bent upwards, the inner sides of the two conveying rails 1 are respectively provided with third sliding grooves 19, and moving blocks 21 are respectively and elastically slide in the two third sliding grooves 19 through a second spring 20, a rotating rod 22 is connected between the two moving blocks 21 in a rotating mode, two third gears 23 and two supporting rods 24 are fixedly connected to the surface of the rotating rod 22, the third gears 23 are located on the surface of the two moving blocks 21, the two supporting rods 24 are located on the inner sides of the two third gears 23, the upper ends of the two supporting rods are bent, an extrusion plate 25 is fixedly connected between the two supporting rods 24, racks 26 are connected to one sides, close to the third gears 23, of the two moving blocks 21 in a sliding mode, two ends of each rack 26 are not provided with teeth, two ends of each rack are bent downwards, the two racks 26 are respectively meshed with the two third gears 23, and a supporting mechanism for supporting the vehicle body is arranged on the outer sides of the two conveying rails 1;

the limiting mechanism comprises two limiting clamping grooves 27, the two limiting clamping grooves 27 are respectively formed in the front end and the rear end of the sliding rod 3, first grooves 28 are formed in the right sides of the inner walls of the two first sliding grooves 2, limiting blocks 30 are elastically and slidably connected into the two first grooves 28 through third springs 29, the end portions of the limiting blocks 30 are inclined planes, inclined grooves 31 are formed in the surfaces of the limiting blocks 30, one sides of the inclined grooves 31 are inclined planes, through holes 32 are formed in the bottoms of the first grooves 28 corresponding to the positions of the inclined grooves 31, pushing rods 33 are slidably connected into the through holes 32, and the pushing rods 33 are elastically connected with the bottoms of the conveying rails 1 through fourth springs 34;

during working, in the prior art, before a vehicle body is welded, the vehicle body is generally moved to a working position, then the vehicle body is fixed and clamped from each position by using a clamp manually, then welding is carried out, after welding is finished, the clamp needs to be removed manually, the whole process is tedious, time-consuming and labor-consuming, and danger is easily caused when the vehicle body is clamped manually The rotating shaft 12 and the second gear 14 rotate, the second gear 14 enables the driving plate 16 to move downwards through the second tooth 17, the clamping plate 18 can clamp the vehicle body from the middle position, the bent part at the tail end of the first pulling rod 5 can pull the rack 26 to move towards the right side while the clamping plate 18 clamps the middle position of the vehicle body, the third gear 23, the rotating rod 22 and the supporting rod 24 can rotate under the action of the rack 26 so as to clamp the rear side of the vehicle body, when the vehicle body continuously moves, after the rack 26 moves to the rightmost side, the moving block 21 can move towards the right side under the action of the rack 26 and the first pulling rod 5, the second spring 20 is compressed, when the sliding rod 3 moves to the position of the limiting block 30, the limiting clamping groove 27 can be clamped with the limiting block 30, the sliding rod 3 is limited so as to clamp and position the whole vehicle body, then welding work is carried out, and when the vehicle body moves to the station, the vehicle body is clamped in all directions, whole process no longer need the manual work to carry out the centre gripping with the automobile body from each position through anchor clamps, be favorable to simplifying workman's operation on the one hand, save time, improve production efficiency, on the other hand manual operation is simple and convenient, reduce the risk of during operation, after the welding finishes, upwards promote ejector rod 33, the inclined plane of ejector rod 33 upper end can act on the inclined plane of chute 31, thereby make stopper 30 move to the inboard, the spacing of slide bar 3 is relieved, the automobile body moves to the right side, slurcam 9 can be in second chute 10 lapse, slurcam 9 can break away from with the automobile body front side, the automobile body can be transferred to next station, slide bar 3 can resume the normal position under the effect of air spring 4, thereby realize the cycle work, do not need the manual work to reset, carry out the manual operation of further simplification.

Because the aluminum material has low hardness, in the process that the pushing plate 9 is driven by the vehicle body to move, the stress point is single, and the vehicle body is easy to deform, in order to solve the above problems, as a further scheme of the invention, the supporting mechanism comprises two auxiliary plates 35, the two auxiliary plates 35 are respectively and fixedly connected to the front and rear sides of the two conveying rails 1, the surfaces of the two auxiliary plates 35 are provided with annular circulating grooves 36, the middle position of the circulating groove 36 deviates to the position close to the pushing plate 9, the circulating groove 36 is connected with a sliding block 37 in a sliding manner, the upper end of the sliding block 37 is fixedly connected with a supporting block 38, the left side of the supporting block 38 is arc-shaped, the surface of the supporting block 38 is elastically connected with an arc-shaped plate 39, the left side of the supporting block 38 is elastically connected with the left side of the auxiliary plate 35 through a fifth spring 40, the right side of the supporting block 38 is fixedly connected with a pushing rod 41, the front side of the right end of the pushing rod 41 is elastically connected with a pulling hook 42 in a sliding manner, and the front end of the pulling hook 42 is an inclined surface, a second pulling rod 43 is fixedly connected to the end of the pushing plate 9 corresponding to the pulling hook 42, a clamping groove 44 is formed in one side, close to the pulling hook 42, of the end of the second pulling rod 43, an inclined surface is formed in one side of the clamping groove 44, the left side of the second pulling rod 43 is an inclined surface, a yielding groove 45 is formed in the surface of the conveying rail 1, and the yielding groove 45 is located at the right side of the second sliding groove 10; when the vehicle body moves, in the process that the vehicle body drives the push plate 9 to move, the second pull rod 43 moves together with the push plate 9, when the second pull rod 43 moves to the position of the pull hook 42, the second pull rod 43 drives the pull hook 42, the push rod 41 and the supporting block 38 to move together, the supporting block 38 drives the slider 37 to move in the circulating slot 36, the supporting block 38 moves inwards under the action of the slider 37 and the circulating slot 36, the supporting block 38 and the arc-shaped plate 39 move to the position of the hub of the vehicle body, the second pull rod 43 and the pull hook 42 move inwards together, the inclined plane at the front end of the pull hook 42 acts on the inclined plane of the clamping slot 44, the second pull rod 43 and the supporting block 38 move backwards, in the process that the supporting block 38 can provide a certain supporting force for the vehicle body, so as to avoid the deformation of the vehicle body, and is beneficial to increasing the stress point in the moving process of the vehicle body, the stress is dispersed, then the pushing plate 9 can move downwards, the second pulling rod 43 is separated from the pulling hook 42, the supporting block 38 can restore to the original position under the action of the fifth spring 40, the second pulling rod 43 can move into the yielding groove 45 to avoid interference with the vehicle body, when the pushing plate 9 net can move to the position of the pulling hook 42, the inclined plane on the left side of the second pulling rod 43 can act on the pulling hook 42 to enable the second pulling rod 43 to move upwards, staggering of the second pulling rod 43 is facilitated, and interference is avoided.

When the extrusion plate 25 is turned over to clamp the rear side of the vehicle body, the extrusion plate 25 can damage the vehicle body, and in order to solve the problems, as a further scheme of the invention, the right side of the extrusion plate 25 is elastically connected with a rubber protection plate 46; when the automobile body rear side clamp device works, when the extrusion plate 25 overturns to clamp the rear side of the automobile body, the protection plate 46 can prevent the extrusion plate 25 from directly contacting the automobile body, and the rubber material can reduce damage to the automobile body.

When the second pulling rod 43 is positioned in the abdicating groove 45, when the hub position of the vehicle body moves to the abdicating groove 45, the second pulling rod 43 moves upwards, so that the second pulling rod 43 collides with the vehicle body, and the second pulling rod 43 is damaged, in order to solve the above problems, as a further scheme of the invention, a fourth sliding groove 47 is formed on the surface of the conveying rail 1 at a position corresponding to the left side of the abdicating groove 45, the fourth sliding groove 47 is communicated with the abdicating groove 45, a blocking rod 48 is slidably connected in the fourth sliding groove 47, two connecting rods 49 are hinged at the left side of the blocking rod 48, the left sides of the two connecting rods 49 are hinged with the inner wall of the fourth sliding groove 47, and a sixth spring 50 is fixedly connected at the middle position of the fourth sliding groove 47 corresponding to the two connecting rods 49; during operation, when the right side of the vehicle body moves to the position of the connecting rod 49, the connecting rod 49 can rotate downwards under the action of the vehicle body, the sixth spring 50 is compressed, the blocking rod 48 blocks the yielding groove 45, and then when the second pulling rod 43 moves downwards, the connecting rod 49 can be located at the position of the hub of the vehicle body, the connecting rod 49 can be supported under the action of the sixth spring 50, the blocking rod 48 no longer blocks the yielding groove 45, so that the second pulling rod 43 can enter the yielding groove 45, when the position of the hub of the vehicle body moves to the position of the yielding groove 45, the connecting rod 49 can be pressed down under the action of the vehicle body, the blocking rod 48 blocks the second pulling rod 43, the second pulling rod 43 is prevented from moving upwards to collide, and the second pulling rod 43 can be located in the yielding groove 45 in the moving process of the vehicle body.

When the sliding block 37 and the supporting block 38 are restored, the sliding block may move from the groove rail close to one side of the vehicle body, so that the pulling hook 42 collides with the vehicle body, the pulling hook 42 is damaged, and the production process is affected, in order to solve the above problems, as a further scheme of the invention, the right side of the inner wall of the annular groove is fixedly connected with a blocking block 51, one side of the blocking block 51 is an inclined plane, and one side of the sliding block 37 close to the blocking block 51 is an inclined plane; during operation, when slider 37 and supporting shoe 38 moved to circulation groove 36 right side, slider 37's inclined plane can laminate and slide with the inclined plane of block 51, and when slider 37 and supporting shoe 38 can recover, block 51 can block slider 37, avoids slider 37 to remove from being close to automobile body one side, is favorable to making slider 37 can keep away from automobile body one side and resume the normal position in circulation groove 36 to increase the life who draws collude 42, guarantee the process of production.

The working principle is as follows:

during working, in the prior art, before a vehicle body is welded, the vehicle body is generally moved to a working position, then the vehicle body is fixed and clamped from each position by using a clamp manually, then welding is carried out, after welding is finished, the clamp needs to be removed manually, the whole process is tedious, time-consuming and labor-consuming, and danger is easily caused when the vehicle body is clamped manually The rotating shaft 12 and the second gear 14 rotate, the second gear 14 enables the driving plate 16 to move downwards through the second tooth 17, the clamping plate 18 can clamp the vehicle body from the middle position, the bent part at the tail end of the first pulling rod 5 can pull the rack 26 to move towards the right side while the clamping plate 18 clamps the middle position of the vehicle body, the third gear 23, the rotating rod 22 and the supporting rod 24 can rotate under the action of the rack 26 so as to clamp the rear side of the vehicle body, when the vehicle body continuously moves, after the rack 26 moves to the rightmost side, the moving block 21 can move towards the right side under the action of the rack 26 and the first pulling rod 5, the second spring 20 is compressed, when the sliding rod 3 moves to the position of the limiting block 30, the limiting clamping groove 27 can be clamped with the limiting block 30, the sliding rod 3 is limited so as to clamp and position the whole vehicle body, then welding work is carried out, and when the vehicle body moves to the station, the vehicle body is clamped in all directions, whole process no longer need the manual work to carry out the centre gripping with the automobile body from each position through anchor clamps, be favorable to simplifying workman's operation on the one hand, save time, improve production efficiency, on the other hand manual operation is simple and convenient, reduce the risk of during operation, after the welding finishes, upwards promote ejector rod 33, the inclined plane of ejector rod 33 upper end can act on the inclined plane of chute 31, thereby make stopper 30 move to the inboard, the spacing of slide bar 3 is relieved, the automobile body moves to the right side, slurcam 9 can be in second chute 10 lapse, slurcam 9 can break away from with the automobile body front side, the automobile body can be transferred to next station, slide bar 3 can resume the normal position under the effect of air spring 4, thereby realize the cycle work, do not need the manual work to reset, carry out the manual operation of further simplification.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.