CN110142549A - A clamping device for automatic welding of bumper - Google Patents

Abstract

The invention discloses a kind of clamping devices for bumper automatic welding.Including chassis, energy-absorption box clamp system and girder hold-down mechanism are equipped on the upside of chassis, energy-absorption box clamp system includes two groups, and its upper two sides for being separately positioned on chassis, girder hold-down mechanism includes press mechanism and lateral pressing structure of shoe, press mechanism includes being arranged on rear side of the support frame on the upside of chassis and setting support frame to be equipped with jacking component, jacking component is connected with press beam, it is used to adjust press beam up and down motion, press beam is oppositely arranged on the two sides of jacking component, press beam is equipped with and holds down assembly for girder to be pressed in the girder on the upside of energy-absorption box, lateral pressing structure of shoe includes several side pressure cylinders being fixed on the upside of chassis, side pressure cylinder is connected with side pressing block, side pressing block is opposite to be equipped with girder limited block, girder is pressed between side pressing block and girder limited block by side pressure cylinder.The present invention can make automatic welding weld seam one-pass molding, improve the reliability of weld job, and improve labor productivity.

Description

A clamping device for automatic welding of bumper

technical field

The invention relates to the field of automatic welding of bumpers, in particular to a clamping device for automatic welding of bumpers.

Background technique

With the development of the automobile industry, the automobile bumper, as an important safety device, is also on the road of innovation. In addition to maintaining the original protection function, the front and rear bumpers of today's automobiles also pursue harmony and unity with the body shape, and pursue their own lightweight. Since the bumper of a car can absorb and relieve external impact and protect the body and passengers, the quality of the bumper is very important at this time, and the welding quality is the most critical. Traditional bumper welding is difficult to achieve quality stability and controllability due to the influence of manual welding speed, wire feeding speed, welding posture, etc.; in addition, the labor efficiency of workers is low, the labor intensity is high, and the operation requirements for workers are high. It is also a disadvantage of the prior art that it is beneficial to the cost control of the enterprise.

Contents of the invention

The object of the present invention is to provide a clamping device for automatic welding of bumpers in view of the deficiencies in the prior art.

In order to achieve the above object, the present invention provides a clamping device for automatic bumper welding, which includes an underframe, an energy-absorbing box clamping mechanism and a main beam pressing mechanism are arranged on the upper side of the underframe, and the absorbing The energy box clamping mechanism includes two groups, which are respectively arranged on the upper sides of the chassis. The main beam pressing mechanism includes a pressing mechanism and a side pressing mechanism. The pressing mechanism includes a The supporting frame and the rear side of the supporting frame are provided with a jacking assembly, and the jacking assembly is connected with a pressure beam, which is used to adjust the up and down movement of the pressure beam. On both sides of the assembly, the pressure beam is provided with a main beam pressing assembly for pressing the main beam on the upper side of the energy-absorbing box, and the side pressing mechanism includes several side pressing cylinders fixed on the upper side of the chassis. The side pressure cylinder is connected with a side pressure block, and the side pressure block is oppositely provided with a main beam limit block, and the main beam limit block is fixed on the upper side of the chassis, and the side pressure cylinder presses the main beam against the side pressure block between the limit block of the main beam.

Further, the underframe includes a bottom beam and side beams fixed on the front sides of both ends of the bottom beam, the bottom beam and the side beams form a C-shaped structure, and a number of load-bearing beams are arranged in the middle of the bottom beam. The beam and the side beam are arranged on the same side, the front end of the load beam is connected to one side of the connecting beam, the bottom beam and the upper side of the load beam are fixed with a base plate, and the energy-absorbing box clamping mechanism is installed at both ends of the connecting beam.

Further, the clamping mechanism of the energy-absorbing box includes a seat plate fixed at both ends of the connecting beam and two jaws, the two jaws are relatively hinged on the upper side of the seat plate, and each jaw is controlled by the connecting arm and the jaws The air cylinder is hinged, and the jaws control the air cylinder to control the flipping of the jaws to loosen and clamp the crash box.

Further, the jacking assembly includes a pressure beam cylinder and a support, the support includes an L-shaped horizontal plate and a vertical plate, the horizontal plate is fixed on the upper side of the chassis, and the pressure beam cylinder passes through The floating head is connected with a slide plate, and the slide plate and the vertical plate are slidably connected by a slider and a slide rail mechanism. A vertical opening is provided in the middle of the vertical plate, and a front plate is connected to the front side of the slide plate through several connecting blocks. The block is arranged in the vertical opening, and the two pressure beams are respectively arranged on both sides of the front plate.

Further, the main beam pressing assembly includes a pressing wheel arranged on the lower side of the pressing beam and a pneumatic pressing block assembly, the pneumatic pressing block assembly is arranged outside the pressing wheel, and the pneumatic pressing block assembly includes a pressing cylinder and a The lower pressure block connected with the lower pressure cylinder, a buffer spring is arranged between the pressure wheel and the pressure beam.

Further, the upper side of the underframe is also provided with an auxiliary support block and a main beam positioning assembly, the main beam positioning assembly includes a pedestal, the upper side of the pedestal is bolted to a first adjustment block, and the first adjustment block is a The side bolt is connected with a positioning block, and the side bolt of the positioning block is connected with a second adjustment block, and the second adjustment block is provided with a main beam positioning pin, between the first adjustment block and the positioning block and between the positioning block and the second adjustment block. A plurality of adjusting shims with different thicknesses are respectively arranged between the adjusting blocks.

Further, the energy-absorbing box positioning support assembly includes an L-shaped reference block and an adjustment block bolted to the base, the L-shaped reference block is bolted to the adjustment block, and the upper side of the adjustment block is provided with a support block and an energy-absorbing block. Box positioning pin, the upper end of the energy-absorbing box positioning pin is higher than the upper surface of the adjustment block, and a plurality of Adjusting shims of different thicknesses.

Further, the jaw control cylinder is arranged on the lower side of the seat plate, and the seat plate is provided with a perforation for the connecting arm to pass through; the adjustment block and the seat plate are provided with a number of through holes, and the seat plate There is an energy-absorbing box jacking cylinder on the side, and the energy-absorbing box jacking cylinder is connected with a connecting block, and a number of ejector rods are arranged on the upper side of the connecting block, and the ejector rods are interspersed in the through holes. When the box jacking cylinder is in the contracted state, the upper end of the ejector rod is lower than the support block, and when the energy absorbing box jacking cylinder is in the extended state, the upper end of the ejector rod is higher than the upper end of the energy absorbing box positioning pin.

Further, a positioner adapter plate is connected to the outside of the side beam to install the underframe on the positioner; a calibration plate is provided on the upper side of the side beam, and the calibration plate is provided with a three-coordinate reference hole and a TCP components.

Further, it includes a marking machine, the marking machine is fixed on the front side of the front plate through a marking machine adapter plate, and the marking machine is arranged between two pressure beams.

Beneficial effects: 1. The underframe of the present invention is welded in the form of a C-shaped steel structure reinforced plate. The overall structure is compact and the appearance is beautiful. While ensuring the strength and rigidity, there is enough space on the inner side, and the weld can be welded by welding robots. Form together.

2. The clamping mechanism of the energy-absorbing box adopts a link mechanism, which effectively solves the problem of narrow space. The overall layout is placed directly under the energy-absorbing box, and the position of the jaws is as low as possible when clamping. Compared with other devices, the surrounding of the weld Keep the position as far away as possible to ensure the accessibility of the welding torch, the posture and the welding seam to be formed at one time.

3. The single-sided double-cylinder output mechanism is adopted to ensure that the energy-absorbing box is evenly stressed when loading parts on each side, and it is convenient to pick up parts manually, which can greatly improve the efficiency of workers loading and unloading parts.

4. Add mechanical positioning support and anti-misplacement measures to put the energy-absorbing box, which can effectively avoid the risk of workers misplaced and continue to work, and increase the sensor detection device to improve the reliability of welding operations and improve labor production efficiency.

5. The clamping of the main beam adopts the form of one pressure beam cylinder plus two down pressure cylinders. After the overall pressure beam cylinder is clamped in place, the two down pressure cylinders clamp both sides, and the main beam positioning component is combined to ensure accurate positioning and clamping of the main beam. , so as to ensure the stability and reliability of subsequent welding operations. 6. The lifting component of the main beam adopts the form of a cylinder plus a guide rail. On the premise of ensuring the rhythm, the speed of the cylinder is adjusted as slow as possible to ensure the rigidity of the whole device; the buffer device is added to reduce the impact; the connection uses a floating head to make the lifting operation stable, safe and reliable; the cylinder The built-in locking mechanism enables the device to maintain its position when the power is cut off, thus ensuring the safety of workers' operation.

7. The integrated marking station improves production efficiency. The installation position is in the center of the device. The overall structure is symmetrical and beautiful under the premise of ensuring the marking function.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a clamping device for automatic bumper welding;

Fig. 2 is the front view of the clamping device for bumper automatic welding;

Fig. 3 is the schematic structural view of the underframe of the clamping device used for bumper automatic welding;

Fig. 4 is a structural schematic diagram of the pressing mechanism of the main girder pressing mechanism;

Fig. 5 is a partial schematic diagram of the area of the clamping mechanism of the crash box;

Fig. 6 is a schematic diagram of the connection between the gripper and the gripper control cylinder;

Fig. 7 is a partial schematic diagram of the side pressing mechanism of the main beam pressing mechanism;

Fig. 8 is a structural schematic diagram of the main beam limiting block of the main beam pressing mechanism;

Fig. 9 is a structural schematic diagram of the main beam positioning assembly;

Fig. 10 is a schematic structural view of the support of the main girder pressing mechanism;

Fig. 11 is a schematic structural view of the auxiliary support block of the main girder pressing mechanism;

Fig. 12 is a structural schematic diagram of the jacking cylinder, connecting hole and ejector rod of the crash box.

Detailed ways

The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in Figures 1 to 12, the embodiment of the present invention provides a clamping device for automatic bumper welding, the device includes a chassis 1, the upper side of the chassis 1 is provided with a crash box clamping mechanism 4 and a main Beam compression mechanism. Wherein, the crash box clamping mechanism 4 includes two groups, which are respectively used to fix a crash box. Two groups of energy-absorbing box clamping mechanisms 4 are respectively arranged on the upper sides of the chassis 1 , and the main beam pressing mechanism includes a downward pressing mechanism and a side pressing mechanism 3 . Wherein, the pressing mechanism includes a support frame 21, a jacking assembly, a pressing beam 22 and a main beam pressing assembly. The support frame 21 is fixedly arranged on the upper side of the underframe 1, the jacking assembly is arranged on the back side of the support frame 21, the jacking assembly is fixedly connected with the pressure beam 22, and the jacking assembly is used to drive the pressure beam 22 to move up and down, and the pressure beam 22 Two pressure beams 22 are included, and two pressure beams 22 are oppositely arranged on both sides of the jacking assembly, and a main beam pressing assembly for pressing the main beam on the upper side of the crash box is arranged on the pressure beams 22 .

As shown in FIGS. 1 , 2 , 7 and 8 , the side pressing mechanism 3 of the embodiment of the present invention includes a side pressing cylinder 31 , a side pressing block 32 and a main beam limiting block 33 . The pressure cylinder 31 preferably adopts two, and the side pressure cylinder 31 is fixed on the upper side of the underframe 1 by the L-shaped cylinder block 34, and the side pressure block 32 is connected on the driving rod of the side pressure cylinder 31, and the side pressure block 32 is limited to the main beam. The position blocks 33 are arranged oppositely, the main beam limit block 33 is fixed on the upper side of the chassis 1, the main beam is placed between the side pressure block 32 and the main beam limit block 33, and the side pressure cylinder 31 can drive the side pressure block 32 to The main beam limiting block 33 moves, and then the main beam is pressed between the side pressing block 32 and the main beam limiting block 33 . The main beam limiting block 33 comprises a first main beam limiting block 331 and a second main beam limiting block 332 fixed on the side upper part of the first main beam limiting block 331 by countersunk bolts, and the second main beam limiting block 332 is connected with Side pressing block 32 preferably adopts 304 steel block, in case scratch main beam. In order to prevent the impact of the side pressure cylinder 31 on the main beam from being too large, a side pressure cylinder limit block 35 is fixed on the underframe 1 between the side pressure block 32 and the main beam limit block 33 .

As shown in FIGS. 1 to 3 , the underframe 1 of the embodiment of the present invention includes a bottom beam 11 , a side beam 12 , a base plate 13 , a load beam 14 and a connecting beam 15 . Wherein, there are two side beams 12, which are respectively fixed on the front sides of both ends of the bottom beam 1, and furthermore, the bottom beam 11 and the side beams 12 form a C-shaped structure. The load beam 14 is also preferably two, and the two load beams 14 are arranged at intervals in the middle of the bottom beam 11, and the load beam 14 is arranged on the same side as the side beam 12, and the front end of the load beam 14 is connected to one side of the connecting beam 15 , the base plate 13 fixes the upper side of the bottom beam 11 and the load beam 14 , and the crash box clamping mechanism 4 is installed at both ends of the connecting beam 15 . In order to facilitate transport by forklift, two fork plates 18 are relatively fixed on the bottom beam 11 and the connecting beam 15 respectively, and fork openings 19 are provided on the fork plates.

As shown in Figures 3, 4 and 10, the jacking assembly of the embodiment of the present invention includes a pressure beam cylinder 23 and a support 24, wherein the support 24 includes a horizontal plate 241 and a vertical plate 242 arranged in an L shape, in order to improve stability In addition, between 241 and the riser 242, a triangular plate 244 is also provided at both ends. The pressure beam cylinder 23 has its own locking mechanism, which can make the device maintain its position when the power is cut off, thereby ensuring the safety of the worker's operation. The horizontal plate 241 is fixed on the upper side of the chassis 1, and the pressure beam cylinder 23 is connected with a slide plate 25. In order to reduce vibration, a floating head 231 is also connected between the pressure beam cylinder 23 and the slide plate 25. The slide plate 25 is slidingly connected with the vertical plate 242, and then the pressure beam cylinder 23 can push the slide plate 25 to move up and down. In order to rationally utilize the space under the bottom beam 1, the pressure beam cylinder 23 is fixed on the underside of the horizontal plate 241, and an avoidance hole 131 is opened on the base plate 13, and then the pressure beam cylinder 23 extends into the underside of the base plate 13. In order to prevent the underframe 1 from being too heavy, the base plate 13 is also provided with a weight-reducing opening 132 .

As shown in Figures 1, 5 and 6, the energy-absorbing box clamping mechanism 4 of the embodiment of the present invention includes a seat plate 41, a jaw 42 and a jaw control cylinder 43, and the seat plate 41 is fixed on both ends of the connecting beam 15, specifically The seat plate 41 is fixed on the outside of the first connecting plate 45, and the two ends of the connecting beam 15 are fixed with a second connecting plate 46, and the first connecting plate 45 is connected with the second connecting plate 46 by bolts. A supporting plate 47 is also fixed between the lower side of the plate 41 and the first connecting plate 45 . Each group of crash box clamping mechanisms 4 includes two jaws 42, and two sets of hinge plates 48 are arranged on the upper side of the seat plate 41, and each set of hinge plates includes two hinge plates 48 oppositely arranged, and the two jaws 42 are respectively Hinged between two sets of hinge plates 48, each jaw 42 is hinged with the jaw control cylinder 43 through the connecting arm 44, and the jaw control cylinder 43 controls the flipping of the jaws 42 when the jaw control cylinder 43 stretches, thereby realizing the loosening and clamping of the energy-absorbing box .

As shown in Figure 5, in order to facilitate the accurate placement of the energy absorbing box on the device, an energy absorbing box positioning support assembly 7 is also provided on the seat plate 41 inside the jaw 42. The energy absorbing box positioning in the embodiment of the present invention The support assembly includes a bolt-connected L-shaped reference block 71 and an adjustment block 72 on the base. The L-shaped reference block 71 is bolted to the adjustment block 72. A support block 73 and an energy-absorbing box positioning pin 74 are arranged on the upper side of the adjustment block 72. The upper end of the crash box positioning pin 74 is higher than the upper surface of the adjustment block 72, and the upper end of the crash box positioning pin 74 is preferably set in a conical shape for easy insertion. Between the two sides of the L-shaped reference block 71 and the adjustment block 72, a plurality of adjusting pads with different thicknesses are arranged, so that the front, rear and left and right sides of the crash box positioning pin 74 can be adjusted by subtracting the adjusting pads of corresponding thickness. The position in one direction corresponds to the positioning hole on the crash box. Between the adjustment block 72 and the support block 73 there are also a plurality of adjustment shims of different thicknesses, so that the height of the support block 73 can be adjusted by subtracting the adjustment shims of corresponding thickness. In order to prevent the energy-absorbing box from being misplaced manually, an anti-mistake pin 78 is also provided on the upper side of the seat plate 41. The anti-mistake pin 78 corresponds to the position of the anti-mistake hole on the bottom of the energy-absorbing box, and cannot be put down when the direction of the energy-absorbing box is misplaced.

As shown in Figure 5, in order to reasonably utilize the space on the lower side of the seat plate 41, the gripper control cylinder 43 of the embodiment of the present invention is arranged on the lower side of the seat plate 41, and the seat plate 41 is provided with a perforation 411 for the connecting arm 44 to pass through , the connecting arm 44 is inserted through the through hole 411 .

As shown in Figures 5 and 12, after the welding is completed, in order to facilitate the removal of the bumper, a number of through holes 412 are provided on the adjustment block 72 and the seat plate 41, and an energy-absorbing box is provided on the lower side of the seat plate 41 to lift the bumper. The cylinder 75 and the jacking cylinder 75 of the energy-absorbing box are connected with a connection block 76 , and the upper side of the connection block 76 is provided with a plurality of ejector rods 77 , and the ejector rods 77 are interspersed and arranged in the through holes 412 . When the jacking cylinder 75 of the energy-absorbing box is in a contracted state, the upper end of the ejector rod 77 is lower than the upper surface of the support block 73; The upper end of pin 74 and error-proof pin 78. After the welding is completed, the clamping mechanism 4 of the energy-absorbing box and the pressing mechanism of the main beam are released, and the jacking cylinder 75 of the energy-absorbing box lifts the bumper upwards through the push rod 77, from the positioning pin 74 of the energy-absorbing box, the error prevention pin 78 and Break away from main beam locating pin 65, and then be convenient to take off bumper. In order to improve the stability of jacking up, there are preferably two push rods 77 , and the two push rods 77 are arranged on both sides of the positioning pin 74 of the crash box respectively.

As shown in FIG. 1 , in order to facilitate the installation of the device on the positioner, a positioner adapter plate 16 is connected to the outside of the side beam 12 , and the chassis 1 is further installed on the positioner through the adapter plate 16 . In order to facilitate detection, a calibration plate 9 is provided on the upper side of the side beam 12, and a three-coordinate reference hole 91 is provided on the calibration plate 9, and the three-coordinate reference hole 91 is used as a reference point for detecting the three coordinates of each component. In order to provide a working reference object for the welding robot, a TCP component 92 is also provided on the calibration plate 9 .

As shown in Figure 3, in order to improve the structural strength of the underframe 1, between the bottom beam 11 and the side beam 12 and the load beam 14, between the connecting beam 15 and the load beam 14 and the second connecting plate 46, and between the side beam 12 and the load beam 14 Reinforcing ribs are arranged between the positioner adapter plates 16 . After being installed on the positioner, the stress between the bottom beam 11 and the side beam 12 is relatively large, so two ribs 17 are used between the bottom beam 11 and the side beam 12, and the ribs 17 are L-shaped shape. Between the bottom beam 11 and the load beam 14 , between the connecting beam 15 and the load beam 14 and the second connecting plate 46 , and between the side beam 12 and the adapter plate 16 of the positioner, it is preferable to adopt a triangular shape rib plate.

As a preferred embodiment, the front side of the slide plate 25 is fixedly provided with a slide block 26, and the back side of the riser 242 is provided with a slide rail 27 that cooperates with the slide block 26, and the slide plate 25 can also be sideways by using the slide block slide rail mechanism. To the limit, thereby ensuring the stable up and down movement of the slide plate 25. A vertical opening 243 is provided at the middle part of the vertical plate 242, and the front side of the slide plate 25 is connected with a front plate 29 by several connection blocks 28, and the connection blocks 28 are arranged in the vertical opening 243, and then the connection blocks 28 do not affect the slide plate 25 up and down. slide. The front plate 29 is preferably spaced apart from the vertical plate 242, and the two pressure beams 22 are respectively fixed on both sides of the front plate 29. When the pressure beam cylinder 23 stretches, the slide plate 25, the connecting block 28, and the front plate 29 drive the pressure beam 22 to move up and down. , so as to release the main beam and press the main beam on the upper side of the crash box.

As shown in Figures 2 and 4, the main girder pressing assembly of the embodiment of the present invention includes a pressing wheel 51 and a pneumatic pressing block assembly 52 arranged on the lower side of the pressing beam 22, and the pneumatic pressing block assembly 52 is arranged on the outside of the pressing wheel 51, The pneumatic pressing block assembly of the embodiment of the present invention includes a pressing cylinder 53 and a pressing block 54 connected to the pressing cylinder 53 , and a buffer spring 55 is provided between the pressing wheel 51 and the pressing beam 22 . After the main beam is placed on the device, the main beam is pressed laterally by the side pressure mechanism first, and then the pressure beam 22 is driven down by the jacking assembly, and the main beam is pressed on the energy-absorbing box by the pressure roller 51 first, and then the main beam is lowered. Compression cylinder 53 pushes down pressing block 54 downwards, further main girder is compressed. The buffer spring 55 and the side pressure cylinder limit block 34 can reduce the impact of the clamping action of the main beam.

As shown in Figures 1, 2 and 9, in order to prevent position deviation when the main beam is placed on the device, a main beam positioning assembly 6 is also provided on the upper side of the underframe 1, and the main beam positioning assembly 6 includes a pedestal 61, the pedestal 61 is I-shaped, and the bottom of the pedestal 61 is fixed on the underframe 1. The upper side of the pedestal 61 is bolt-connected with a first adjustment block 62, and one side of the first adjustment block 62 is bolt-connected with a positioning block 63. The positioning block The side bolts of 63 are connected with the second adjustment block 64, and the main beam positioning pin 65 is arranged on the second adjustment block 64, between the first adjustment block 62 and the positioning block 63 and between the positioning block 63 and the second adjustment block 64 A plurality of adjusting shims with different thicknesses are respectively provided. By adding or subtracting the adjusting spacers, the position of the positioning pin 65 of the main beam can be adjusted in the front, rear and left and right directions, so as to correspond to the position of the positioning hole on the main beam. Taking the adjustment gap between the first adjustment block 62 and the positioning block 63 and between the positioning block 63 and the second adjustment block 64 as an example of 3mm, the number of adjusting shims used can be five, and the preferred thickness is two respectively. 1mm adjusting shim, one 0.5mm adjusting shim, one 0.3mm adjusting shim and one 0.2mm adjusting shim, according to different errors, subtract the adjusting shims of corresponding size to adjust the main beam positioning pin 65 positions.

As shown in FIG. 11 , in order to prevent the main beam from being deformed during the welding process, an auxiliary support block 8 is provided on the upper side of the chassis 1 , and the auxiliary support block 8 is arranged between the two side pressing mechanisms 3 . The auxiliary support block 8 of the embodiment of the present invention includes a first auxiliary support block 81 fixed on the upper side of the first chassis 1 and a second auxiliary support block 82 connected to the upper end of the first auxiliary support block 81 by countersunk bolts. The support block 81 is L-shaped, and the second auxiliary support block 82 is preferably made of 304 steel blocks to prevent the main beam from being scratched.

As shown in Figures 1, 5 and 9, the embodiment of the present invention also integrates a marking machine 100, the marking machine 100 is fixed on the front side of the front plate 29 through a marking machine adapter plate 101, and the marking machine 100 is arranged on two sides. Between the pressure beams 22. A proximity switch 103 is also provided on one side of the crash box clamping mechanism 4, and the proximity switch 103 is used to detect whether a crash box is put in. The proximity switch 103 is preferably installed on the upper side of the second connecting plate 46 through a bracket. The upper side of the pedestal 61 also passes through a bracket proximity switch 104, and the proximity switch 104 is used to detect whether a main beam is put into.

The above descriptions are only preferred implementations of the present invention, and it should be pointed out that for those of ordinary skill in the art, other parts not specifically described belong to the prior art or common knowledge. On the premise of not departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of clamping device for bumper automatic welding, which is characterized in that including chassis, be equipped with and inhale on the upside of the chassis Energy box clamp system and girder hold-down mechanism, the energy-absorption box clamp system includes two groups, and it is separately positioned on the upper of chassis Two sides, the girder hold-down mechanism include press mechanism and lateral pressing structure of shoe, and the press mechanism includes being arranged on the upside of chassis It is equipped with jacking component on rear side of support frame and setting support frame, the jacking component is connected with press beam, is used to adjust the press beam It moves up and down, the press beam includes two, and its two sides for being oppositely arranged on jacking component, the press beam are equipped with for that will lead Beam is pressed in the girder on the upside of energy-absorption box and holds down assembly, and the lateral pressing structure of shoe includes several side pressure cylinders being fixed on the upside of chassis, The side pressure cylinder is connected with side pressing block, and the side pressing block is opposite to be equipped with girder limited block, and the girder limited block is fixed on bottom On the upside of frame, girder is pressed between side pressing block and girder limited block by the side pressure cylinder.

2. the clamping device according to claim 1 for bumper automatic welding, which is characterized in that the chassis includes Bottom beam and the curb girder being fixed on front side of bottom beam both ends, the bottom beam and curb girder constitute c-type shape structure, if being equipped in the middle part of the bottom beam Dry load bearing beam, the load bearing beam and the ipsilateral setting of curb girder, the load bearing beam front end are connected to the side of attachment beam, the bottom beam with It is fixed with substrate on the upside of load bearing beam, the energy-absorption box clamp system is mounted on the both ends of attachment beam.

3. the clamping device according to claim 2 for bumper automatic welding, which is characterized in that the energy-absorption box folder Tight mechanism includes the seat board and two clamping jaws for being fixed on attachment beam both ends, and described two clamping jaws are opposite to be hinged on the upside of seat board, often One clamping jaw is hinged by linking arm and clamping jaw control cylinder, the clamping jaw control cylinder control clamping jaw overturning, to unclamp and clamp Energy-absorption box.

4. the clamping device according to claim 1 for bumper automatic welding, which is characterized in that the jacking component Including press beam cylinder and support, the support includes the transverse slat and riser of L-shape setting, and the transverse slat is fixed on the upper of chassis Side, the press beam cylinder are connected with slide plate by air supported head, and the slide plate is slidably connected with riser by sliding block and sliding track mechanism, Vertical openings are equipped in the middle part of the riser, the slide plate front side is connected with foreboard, the link block setting by several link blocks In vertical openings, described two press beams are separately positioned on the two sides of foreboard.

5. the clamping device according to claim 1 for bumper automatic welding, which is characterized in that the girder compresses Component includes the pinch roller and Pneumatic pressure block assembly being arranged on the downside of press beam, and the outside of pinch roller is arranged in the pneumatic briquetting component, The pneumatic briquetting component includes lower air cylinder and the lower lock block that connect with lower air cylinder, is equipped between the pinch roller and press beam slow Rush spring.

6. the clamping device according to claim 1 for bumper automatic welding, which is characterized in that on the upside of the chassis It is additionally provided with auxiliary support block and girder positioning component, the girder positioning component includes pedestal, is bolted on the upside of the pedestal There is the first adjustment block, the first adjustment block side has been bolted locating piece, and the locating piece side has been bolted second Adjustment block, the second adjustment block is equipped with girder positioning pin, between the first adjustment block and locating piece and locating piece and second The adjustment gasket of multiple and different thickness is respectively equipped between adjustment block.

7. the clamping device according to claim 3 for bumper automatic welding, which is characterized in that the energy-absorption box is fixed Position support component includes being bolted to L-type reference block and adjustment block on pedestal, and the L-type reference block and adjustment block bolt connect It connects, supporting block and energy-absorption box positioning pin is equipped on the upside of the adjustment block, the upper end of the energy-absorption box positioning pin is higher than adjustment block Be equipped between two edge of upper surface, the L-type reference block and adjustment block and between adjustment block and supporting block it is multiple not The adjustment gasket of stack pile.

8. the clamping device according to claim 7 for bumper automatic welding, which is characterized in that the clamping jaw control The downside of seat board is arranged in cylinder, and the seat board is equipped with the perforation passed through for linking arm；It is equipped on the adjustment block and seat board Several through-holes, the seat board downside are equipped with energy-absorption box jacking cylinder, and the energy-absorption box jacking cylinder is connected with link block, the company Connect and be equipped with several mandrils on the upside of block, the mandril is interspersed to be arranged in through-hole, the energy-absorption box jacking cylinder in a contracted state, The upper end of the mandril is lower than supporting block, and in the extended state, the upper end of the mandril is higher than inhales the energy-absorption box jacking cylinder The upper end of energy box positioning pin.

9. the clamping device according to claim 2 for bumper automatic welding, which is characterized in that the side rail outer It is connected with positioner pinboard, chassis is mounted on positioner；Calibration plate is equipped on the upside of the curb girder, on the calibration plate Equipped with three coordinate basis holes and TCP component.

10. the clamping device according to claim 2 for bumper automatic welding, which is characterized in that described includes beating Mark machine, the marking machine are fixed on the front side of foreboard by marking machine pinboard, and the marking machine is arranged between two press beams.