CN114985890A

CN114985890A - Trihedral multi-vehicle-type common spot welding fixture

Info

Publication number: CN114985890A
Application number: CN202210774227.6A
Authority: CN
Inventors: 费宏亮; 周启华
Original assignee: Jiashan Youbo Automation Equipment Co ltd
Current assignee: Jiashan Youbo Automation Equipment Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-09-02

Abstract

The invention relates to the field of automobile fixtures, in particular to a trihedral multi-vehicle type common spot welding fixture which comprises a base, a controller, a height adjusting mechanism, a turnover mechanism and a fixing mechanism, wherein the height adjusting mechanism comprises a lifting plate, a pushing cylinder and two jacking components, the turnover mechanism comprises a triangular table, a driving component and two rotating shafts, the fixing mechanism comprises two first inner support components, two second inner support components and two third inner support components, the two first inner support components, the two second inner support components and the two third inner support components are respectively arranged on three outer walls of the triangular table, the pushing cylinder, the driving component, each first inner support component, each second inner support component and each third inner support component are electrically connected with the controller, the trihedral multi-vehicle type common spot welding fixture related by the invention can meet the welding clamping requirements of more than two vehicle types, the limitation of vehicle model production is reduced.

Description

Trihedral spot welding fixture shared by multiple vehicle types

Technical Field

The invention relates to the field of automobile clamps, in particular to a trihedral spot welding clamp shared by multiple vehicle types.

Background

With the pace that various large automobile manufacturers push new automobile models more and more quickly, the requirements of various automobile models are further promoted towards product serialization and part universalization; production equipment for products and parts also has to have the characteristics of multiple vehicle types and flexibility so as to shorten the development period of the products and reduce the investment of equipment cost.

Usually, an automobile manufacturer releases a vehicle type, a complete set of vehicle body welding fixture production line is needed, if the vehicle type is the same series or three different vehicle types of platforms, three sets of different welding fixture production lines need to be manufactured, namely, most welding positioning fixtures cannot be used universally and can be switched in the shortest time.

The other way is to share the welding clamps of two vehicle types of the same series or platform with one bottom plate, and realize the switching during the production of the two vehicle types through the switching of most of single positioning units.

The above method has the following disadvantages:

1. the limitation of producing vehicle types is large, at most two vehicle types can be produced, the fast clamping switching of various vehicle types cannot be realized, and the practicability and the flexibility are both low.

2. As the clamp positioning unit has more and larger parts, the whole size of the clamp is larger, the occupied space is large, and the space is too small during welding, so that the welding gun interferes with a workpiece and a welding clamp, and the product quality and the working efficiency are seriously influenced.

3. Because the device is bulky, the overall height of the clamp can not be quickly adjusted, and therefore the welding requirements of vehicle bodies with different heights can not be met.

Disclosure of Invention

The invention aims to provide a trihedral spot welding clamp shared by multiple vehicles.

In order to achieve the purpose, the invention adopts the following technical scheme:

provides a trihedral multi-vehicle type common spot welding fixture, which comprises a base,

also comprises a controller, a height adjusting mechanism, a turnover mechanism and a fixing mechanism,

the height adjusting mechanism is arranged at the top of the base and used for driving the turnover mechanism and the fixing mechanism to ascend, the height adjusting mechanism comprises a lifting plate, a pushing cylinder and two jacking components, the pushing cylinder is fixedly arranged at the top of the base, the two jacking components are symmetrically arranged at the top of the base, the output end of the pushing cylinder is fixedly connected with the two jacking components, the lifting plate is arranged at the top of the base in a sliding manner,

the turnover mechanism is arranged on the top of the lifting plate and comprises a triangular platform, a driving component and two rotating shafts, the top of the lifting plate is symmetrically provided with two supporting plates, each rotating shaft is inserted on the top of one supporting plate, the triangular platform is fixedly arranged between the two rotating shafts, the driving component is arranged on the outer wall of one supporting plate and is fixedly connected with one rotating shaft,

the fixing mechanism is arranged on the outer wall of the triangular platform and comprises two first inner support assemblies, two second inner support assemblies and two third inner support assemblies, the two first inner support assemblies, the two second inner support assemblies and the two third inner support assemblies are arranged on the three outer walls of the triangular platform respectively, and the pushing cylinder, the driving assembly, each first inner support assembly, each second inner support assembly and each third inner support assembly are electrically connected with the controller.

Furthermore, every first internal stay subassembly all includes servo motor, the carousel, two connecting rods and two first bracers, fixedly on the anterior outer wall of triangular platform being equipped with two base plates, servo motor inserts and establishes on the inner wall of base plate, and its output passes the base plate, and the carousel cover is established on its output, and every first bracer all slides and establishes on the base plate, and every connecting rod all articulates the setting between the one end outer wall of carousel and the one end outer wall of first bracer, and servo motor is connected with the controller electricity.

Further, every second internal stay subassembly all includes step motor, first gear, two first racks and two second bracers, the fixed two base stations that are equipped with in top of triangular platform, every second bracer all slides and establishes the top one end at the base station, step motor inserts and establishes on the inner wall of base station, base station top is passed to its output, first gear cover is established on its output, every first rack is all fixed to be established on the one end outer wall of a second bracer, first gear and two first racks all mesh and connect, and the fixed two slide rails that are equipped with in top of base station, every first rack all with a slide rail sliding connection, step motor is connected with the controller electricity.

Further, every third internal stay subassembly all includes micromotor, two-way lead screw and two arc bracers, it is the symmetry on the back outer wall of triangular table to be provided with two bases, one of them base that is close to driving motor and the outer wall fixed connection of triangular table, it is provided with two spouts all to be the symmetry on the outer wall of every base, every arc bracer all slides and establishes the inside at a spout, two-way lead screw rotates and sets up on the inner wall of base, every arc bracer all with the one end threaded connection of two-way lead screw, micromotor is fixed to be established on the outer wall of base, its output and the one end fixed connection of two-way lead screw, micromotor and controller electricity are connected.

Furthermore, another base is through the outer wall sliding connection of two travelers and triangular platform, fixedly on the outer wall of triangular platform being equipped with the unipolar cylinder, its output and the outer wall fixed connection of the base that is close to the traveler, unipolar cylinder is connected with the controller electricity.

Furthermore, the outer wall of each first supporting block and the outer wall of each second supporting block are fixedly provided with clamping plugs.

Furthermore, the driving assembly comprises a driving motor, a first chain wheel and a second chain wheel, the driving motor is fixedly arranged on the outer wall of one of the supporting plates, the first chain wheel is sleeved on the output end of the first chain wheel, the second chain wheel is sleeved on one of the rotating shafts close to the driving motor, a chain is sleeved between the first chain wheel and the second chain wheel, and the driving motor is electrically connected with the controller.

Furthermore, each jacking assembly comprises a second gear, a second rack, a swinging rod and an ejector rod, a hinged shaft is inserted into the top of the base, the second gear and the swinging rod are fixedly arranged on the outer wall of one end of the hinged shaft, the ejector rod is hinged between the bottom of the lifting plate and one end, far away from the hinged shaft, of the swinging rod, two guide rails are symmetrically arranged at the top of the base, the second rack is arranged at the top of one of the guide rails in a sliding mode, and the second gear is connected with the second rack in a meshed mode.

Furthermore, the output end of the pushing cylinder is fixedly provided with a push plate, the push plate and the two second racks are close to one end of the pushing cylinder and fixedly connected, and a groove for the push plate to slide is formed in each guide rail.

Furthermore, all fixed being equipped with the elastic rod on the outer wall of every backup pad, the one end that the backup pad was kept away from to every elastic rod is all fixed and is equipped with hemispherical buckle, and impartial interval is provided with three draw-in groove on every lateral wall of triangle platform, and every hemispherical buckle all with one of them draw-in groove joint.

The invention has the beneficial effects that:

1. compared with the prior art, the welding and clamping requirements of more than two vehicle types can be met, and the limitation of vehicle type production is reduced.

2. According to the invention, through designing the turnover mechanism, namely the triangular platform, the driving assembly and the two rotating shafts, the driving assembly is started through the controller, so that the triangular platform is driven to rotate through the two rotating shafts, the switching of the clamps of three vehicle types is carried out, the switching efficiency is further improved, and the welding efficiency is further improved.

3. According to the invention, through designing the elastic rod, the hemispherical buckles and the clamping grooves, six clamping grooves are designed on two sides of the triangular platform, and the two clamping grooves are clamped through the two hemispherical buckles, so that the elastic rod can provide elastic support, the triangular platform can rotate conveniently during switching, on one hand, the stability of the triangular platform during rotation can be ensured, the triangular platform cannot be inclined, on the other hand, the triangular platform can be ensured not to rotate or have angular deviation after rotating in place, further, the triangular platform can be ensured to rotate by one hundred twenty degrees every time, the switching among the two first inner support assemblies, the two second inner support assemblies and the two third inner support assemblies can be just met, further, the clamping requirements of different vehicle types can be met, and the flexibility and the switching accuracy of the clamp can be improved.

4. By designing the height adjusting mechanism, namely the lifting plate, the pushing cylinder and the two jacking components, when the height of the fixing mechanism is required to be adjusted, namely when the clamping height is required to be adjusted, the pushing cylinder is started through the controller, because the pushing plate is fixedly connected with the output end of the cylinder gasket and because the pushing plate is fixedly connected with one ends of the two second racks close to the pushing cylinder, the two second racks are driven to slide towards one end far away from the pushing cylinder in the two guide rails, when the second racks slide towards one end far away from the pushing cylinder in the guide rails, the second racks are meshed and connected with the second gear, the second gear is sleeved with the hinged shaft, the hinged shaft is driven to rotate clockwise, and because the swinging rod is fixedly connected with the hinged shaft, the bottom of the lifting plate and one end of the swinging rod far away from the hinged shaft are respectively hinged with two ends of the ejector rod, and the lifting plate is connected with the base in a sliding manner, and then the fixed establishment who drives lifter plate and top rises, until reaching required clamping height, satisfies the centre gripping requirement of the automobile body of different height dimensions, has promoted the practicality of this anchor clamps.

5. According to the invention, the triangular platform is designed, the fixtures of three different vehicle types are designed on the three outer walls of the triangular platform, when the fixture is used, a vehicle body is conveyed by the conveying equipment, then the front and rear vehicle windows on one side of the vehicle body are tightly supported and limited, and then point position welding is carried out, so that the overall size of the fixture can be effectively reduced, the occupied space of the positioning unit is reduced, the welding space is increased, meanwhile, the welding gun, the workpiece and the welding fixture are ensured not to interfere, and the product quality and the working efficiency are further improved.

6. According to the invention, the triangular platform is designed, so that the two first inner support assemblies, the two second inner support assemblies and the two third inner support assemblies can be ensured to keep inclination angles when rotating towards the automobile body, and can be quickly abutted against the automobile window on the side part of the automobile body with the arc-shaped surface, and the clamping efficiency is favorably improved.

Drawings

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

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a schematic perspective view of the present invention;

FIG. 5 is an enlarged view at C in FIG. 4;

FIG. 6 is an enlarged view of FIG. 4 at D;

FIG. 7 is a schematic perspective view of the triangular table and the fixing mechanism of the present invention;

FIG. 8 is an enlarged view at E in FIG. 7;

FIG. 9 is a top view of the present invention;

FIG. 10 is a plan sectional view taken along line F-F in FIG. 9;

FIG. 11 is an enlarged view at G of FIG. 10;

in the figure: the device comprises a base 1, a height adjusting mechanism 2, a turnover mechanism 3, a fixing mechanism 4, a lifting plate 5, a pushing cylinder 6, a jacking assembly 7, a triangular table 8, a driving assembly 9, a rotating shaft 10, a first inner support assembly 11, a second inner support assembly 12, a third inner support assembly 13, a servo motor 14, a turntable 15, a connecting rod 16, a first support block 17, a stepping motor 18, a first gear 19, a first rack 20, a second support block 21, a sliding rail 22, a micro motor 23, a bidirectional screw rod 24, an arc-shaped support block 25, a sliding column 26, a single-shaft cylinder 27, a clamping plug 28, a driving motor 29, a first chain wheel 30, a second chain wheel 31, a chain 32, a second gear 33, a second rack 34, a swinging rod 35, an ejector rod 36, a push plate 37, an elastic rod 38, a hemispherical buckle 39 and a clamping groove 40.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.

Example one

The invention provides a technical scheme, and as shown in figure 1, a trihedral multi-vehicle type common spot welding fixture comprises a base 1,

also comprises a controller, a height adjusting mechanism 2, a turnover mechanism 3 and a fixing mechanism 4,

the height adjusting mechanism 2 is arranged on the top of the base 1 to drive the turnover mechanism 3 and the fixing mechanism 4 to rise, the height adjusting mechanism 2 comprises a lifting plate 5, a pushing cylinder 6 and two jacking assemblies 7, the pushing cylinder 6 is fixedly arranged on the top of the base 1, the two jacking assemblies 7 are symmetrically arranged on the top of the base 1, the output end of the pushing cylinder 6 is fixedly connected with the two jacking assemblies 7, the lifting plate 5 is arranged on the top of the base 1 in a sliding manner,

the turnover mechanism 3 is arranged on the top of the lifting plate 5, the turnover mechanism 3 comprises a triangular table 8, a driving component 9 and two rotating shafts 10, the top of the lifting plate 5 is symmetrically provided with two supporting plates, each rotating shaft 10 is inserted on the top of one supporting plate, the triangular table 8 is fixedly arranged between the two rotating shafts 10, the driving component 9 is arranged on the outer wall of one supporting plate, the driving component 9 is fixedly connected with one rotating shaft 10,

the fixing mechanism 4 is arranged on the outer wall of the triangular table 8, the fixing mechanism 4 comprises two first inner support assemblies 11, two second inner support assemblies 12 and two third inner support assemblies 13, the two first inner support assemblies 11, the two second inner support assemblies 12 and the two third inner support assemblies 13 are respectively arranged on the three outer walls of the triangular table 8, and the pushing air cylinder 6, the driving assembly 9, each first inner support assembly 11, each second inner support assembly 12 and each third inner support assembly 13 are electrically connected with the controller.

Referring to fig. 5, each first inner supporting assembly 11 comprises a servo motor 14, a rotary table 15, two connecting rods 16 and two first supporting blocks 17, two base plates are fixedly arranged on the outer wall of the front portion of the triangular table 8, the servo motor 14 is inserted into the inner wall of the base plate, the output end of the servo motor passes through the base plate, the rotary table 15 is sleeved on the output end of the base plate, each first supporting block 17 is arranged on the base plate in a sliding mode, each connecting rod 16 is hinged between the outer wall of one end of the rotary table 15 and the outer wall of one end of the first supporting block 17, the servo motor 14 is electrically connected with a controller, because the distance between the two first inner supporting assemblies 11 is consistent with the distance between the front window and the rear window of the two-compartment vehicle type, when the two-compartment vehicle type vehicle needs to be clamped, the vehicle body of the two-compartment vehicle type is firstly moved to the first inner supporting assembly 11 by a conveying device, the conveying device is an existing device, and after the front window of the two-compartment vehicle type vehicle body extends into the two first supporting blocks 17, start servo motor 14 through the controller, thereby it is rotatory to drive carousel 15, because the outer wall of every first bracer 17 and the one end of carousel 15 are articulated with the both ends of every connecting rod 16 respectively, again because every first bracer 17 all with the one end sliding connection of base plate, and then drive two bracers and keep away from each other, prop tightly along with lower edge department on the anterior door window of the automobile body of hatchback motorcycle type, with another first interior supporting component 11 cooperation, prop tight centre gripping to the front and back door window of the automobile body of hatchback motorcycle type, in order to play the fixed action, then weld the automobile body through welding equipment.

Referring to fig. 2, each second inner supporting assembly 12 includes a stepping motor 18, a first gear 19, two first racks 20 and two second supporting blocks 21, two bases are fixedly disposed on the top of the triangular table 8, each second supporting block 21 is slidably disposed at one end of the top of the base, the stepping motor 18 is inserted into the inner wall of the base, the output end of the stepping motor passes through the top of the base, the first gear 19 is sleeved on the output end of the first gear, each first rack 20 is fixedly disposed on the outer wall of one end of one second supporting block 21, the first gear 19 and the two first racks 20 are engaged, the top of the base is fixedly disposed with two sliding rails 22, each first rack 20 is slidably connected with one sliding rail 22, the stepping motor 18 is electrically connected with the controller, because the distance between the two second inner supporting assemblies 12 is large and is the distance between the front and rear windows of the three-compartment type, when the triangular table 8 rotates to the top thereof and faces the conveying device, the vehicle body of the three-compartment vehicle type is moved to the second inner supporting assembly 12 through the conveying device, after a front vehicle window of the vehicle body of the three-compartment vehicle type extends into the two second supporting blocks 21, the stepping motor 18 is started through control, because the first gear 19 is sleeved with the output end of the first gear, the first gear 19 is driven to rotate, because each first rack 20 is connected with one sliding rail 22 in a sliding mode, each first rack 20 is fixedly connected with one second supporting block 21, because the first gear 19 is connected with the two first racks 20 in a meshing mode, the two second supporting blocks 21 are driven to be away from each other, the upper edge and the lower edge of the front vehicle window of the vehicle body of the three-compartment vehicle type are supported tightly, the front vehicle window and the rear vehicle window of the vehicle body of the three-compartment vehicle type are supported tightly and clamped, a fixing effect is achieved, and then the vehicle body is welded through the welding device.

Referring to fig. 8, each third inner supporting assembly 13 includes a micro-motor 23, a bidirectional screw rod 24 and two arc-shaped supporting blocks 25, two bases are symmetrically arranged on the outer wall of the back of the triangular platform 8, one of the bases close to the driving motor 29 is fixedly connected with the outer wall of the triangular platform 8, two sliding grooves are symmetrically arranged on the outer wall of each base, each arc-shaped supporting block 25 is slidably arranged inside one sliding groove, the bidirectional screw rod 24 is rotatably arranged on the inner wall of the base, each arc-shaped supporting block 25 is in threaded connection with one end of the bidirectional screw rod 24, the micro-motor 23 is fixedly arranged on the outer wall of the base, the output end of the micro-motor is fixedly connected with one end of the bidirectional screw rod 24, the micro-motor 23 is electrically connected with a controller, the upper edge and the lower edge of the window of the micro-motor are flat, the first supporting block 17 and the second supporting block 21 are flat plate structures, so as to conveniently realize tight clamping, the sports car is cool in shape, the car window of the sports car is usually of an arc-shaped structure, a straight structure does not adapt to the tight supporting and clamping requirements of the sports car, when the car body of the sports car is in welding work, firstly, the triangular platform 8 is rotated to the back of the car body to face the conveying equipment through the turnover mechanism 3, then, the car body of the sports car is moved to the third inner supporting assembly 13 through the conveying equipment, after the front car window of the car body of a three-compartment car type extends into the two arc-shaped supporting blocks 25, the micro motor 23 is started through control, due to the rotary design of the two-way screw rod 24, two ends of the two-way screw rod 24 are respectively provided with threads with different rotation directions, because each arc-shaped supporting block 25 is in threaded connection with one end of the two-way screw rod 24, each arc-shaped supporting block 25 is in sliding connection with the inner wall of the base, the output end of the micro motor 23 is fixedly connected with one end of the two-way screw rod 24, the two-way screw rods 24 are driven to be far away from each other, the upper edge and the lower edge of the front car body of the car body are tightly supported, with another third internal stay subassembly 13 cooperation, prop tight centre gripping to the front and back door window of the automobile body of sports car to play the fixed action, then weld the automobile body through welding equipment.

Referring to fig. 7 and 8, the other base is connected with the outer wall of the triangular table 8 in a sliding way through two sliding columns 26, a single-shaft cylinder 27 is fixedly arranged on the outer wall of the triangular table 8, the output end of the single-shaft air cylinder is fixedly connected with the outer wall of the base close to the sliding column 26, the single-shaft air cylinder 27 is electrically connected with the controller, because the length and the size of the sports car are different, the length of the car body of the sports car is different, when the car body of the sports car with larger length needs to be welded, the single-shaft cylinder 27 is started through the controller, because the output end of the base is fixedly connected with the outer wall of the base close to the sliding column 26, and because the base is connected with the triangular platform 8 in a sliding way through the two sliding columns 26, so that the slide carriage slides to the end far away from the driving motor 29, and the distance between the base and the other base is increased, so as to increase the clamping distance of the four arc-shaped supporting blocks 25 and meet the clamping requirements on the bodies of different sports cars.

Referring to fig. 2, the outer walls of each first supporting block 17 and each second supporting block 21 are fixedly provided with clamping plugs 28, two first inner supporting assemblies 11, two second inner supporting assemblies 12 and two third inner supporting assemblies 13 are mainly used for stretching into the car window on the car body of each car type, the upper edge and the lower edge of the car window are tightly supported, so that the fixing effect is achieved, the clamping plugs 28 are provided with slots, the upper edge and the lower edge of the car window are clamped and limited conveniently after stretching into the car window, the clamping stability is favorably improved, the end part of each slot is provided with an oblique angle structure, the clamping plugs 28 can slide into the upper edge and the lower edge of the car window conveniently, and the clamping speed is improved.

Referring to fig. 4, the driving assembly 9 includes a driving motor 29, a first chain wheel 30 and a second chain wheel 31, the driving motor 29 is fixedly disposed on an outer wall of one of the supporting plates, the first chain wheel 30 is sleeved on an output end of the first chain wheel 30, the second chain wheel 31 is sleeved on one of the rotating shafts 10 close to the driving motor 29, a chain 32 is sleeved between the first chain wheel 30 and the second chain wheel 31, the driving motor 29 is electrically connected with the controller, when a vehicle body of a three-compartment vehicle type needs to be clamped, the driving motor 29 is first started by the controller, because the first chain wheel 30 is sleeved on the output end of the first chain wheel 30, the second chain wheel 31 is sleeved on one of the rotating shafts 10 close to the driving motor 29, and because the triangular table 8 is rotatably connected with the two supporting plates through the two rotating shafts 10, the first chain wheel 30 and the second chain wheel 31 are sleeved through the chain 32, and the first chain wheel 30 is smaller than the second chain wheel 31, so as to drive the triangular table 8 to rotate slowly, until the top of the triangular table 8 is rotated towards the conveying device.

Referring to fig. 6, each of the jacking assemblies 7 includes a second gear 33, a second gear 34, a swing link 35 and a push rod 36, a hinge shaft is inserted into the top of the base 1, the second gear 33 and the swing link 35 are fixedly disposed on the outer wall of one end of the hinge shaft, the push rod 36 is hinged between the bottom of the lifting plate 5 and one end of the swing link 35 away from the hinge shaft, two guide rails are symmetrically disposed on the top of the base 1, the second gear 34 is slidably disposed on the top of one of the guide rails, the second gear 33 is engaged with the second gear 34, when the second gear 34 slides towards the end away from the pushing cylinder 6 in the guide rails, the second gear 34 is engaged with the second gear 33, the second gear 33 is sleeved with the hinge shaft, so as to drive the clockwise rotation, and because the swing link 35 is fixedly connected with the hinge shaft, the bottom of the lifting plate 5 and one end of the swing link 35 away from the hinge shaft are respectively hinged with two ends of the push rod 36, lifter plate 5 and base 1 sliding connection, and then drive the fixed establishment 4 at lifter plate 5 and top and rise, until reaching required clamping height, satisfy the centre gripping requirement of unidimensional automobile body, promoted the practicality of this anchor clamps.

Referring to fig. 3, a push plate 37 is fixedly arranged at the output end of the push cylinder 6, the push plate 37 and two second racks 34 are fixedly connected with one end close to the push cylinder 6, an avoiding groove for the push plate 37 to slide is formed in each guide rail, when the height of the fixing mechanism 4 is required to be adjusted, namely, when the clamping height is required to be adjusted, the push cylinder 6 is started through a controller, because the push plate 37 is fixedly connected with the output end of a cylinder gasket, and because the push plate 37 and two second racks 34 are fixedly connected with one end close to the push cylinder 6, the two second racks 34 are driven to slide towards one end far away from the push cylinder 6 in the two guide rails.

The working principle is as follows: because the distance between the two first inner supporting components 11 is consistent with the distance between the front window and the rear window of the hatchback vehicle, when the hatchback vehicle needs to be clamped, firstly, the hatchback vehicle is moved to the first inner supporting components 11 through the conveying equipment, the conveying equipment is the existing equipment, when the front window of the hatchback vehicle extends into the two first supporting blocks 17, the servo motor 14 is started through the controller, so as to drive the turntable 15 to rotate, because the outer wall of each first supporting block 17 and one end of the turntable 15 are respectively hinged with two ends of each connecting rod 16, and because each first supporting block 17 is in sliding connection with one end of the base plate, the two supporting blocks are driven to be away from each other, the upper edge and the lower edge of the front window of the hatchback vehicle are tightly braced, and matched with the other first inner supporting component 11, the front window and the rear window of the hatchback vehicle are tightly clamped, so as to play a fixing role, and then the vehicle body is welded through the welding equipment.

Because the distance between the two second inner supporting components 12 is larger and is the distance between the front window and the rear window of the three-compartment car type, when the triangular platform 8 rotates to the top part thereof towards the conveying device, the car body of the three-compartment car type moves towards the second inner supporting components 12 through the conveying device, when the front window of the car body of the three-compartment car type extends into the two second supporting blocks 21, the stepping motor 18 is started through control, because the first gear 19 is sleeved with the output end thereof, the first gear 19 is driven to rotate, because each first rack 20 is in sliding connection with one sliding rail 22, each first rack 20 is fixedly connected with one second supporting block 21, because the first gear 19 is in meshing connection with the two first racks 20, the two second supporting blocks 21 are driven to be away from each other, the upper edge and the lower edge of the front window of the car body of the three-compartment car type are tightly supported and matched with the other second inner supporting component 12, the car body is tightly supported and clamped by front and rear windows of the car body of the three-compartment car type to play a role in fixing, and then the car body is welded through welding equipment.

No matter a three-compartment car type or a two-compartment car type, the upper edge and the lower edge of the car window are flat, the first supporting block 17 and the second supporting block 21 are of flat plate structures, so that the tight clamping is convenient to realize, the car window of the sports car is usually of an arc-shaped structure due to the cool shape, and the flat and straight structure does not adapt to the tight clamping requirement, so when the car body of the sports car is welded, firstly, the triangular platform 8 is rotated to the back part of the car body to face the conveying equipment through the turnover mechanism 3, then, the car body of the sports car is moved to the third inner supporting assembly 13 through the conveying equipment, after the front car window of the car body of the three-compartment car type extends into the two arc-shaped supporting blocks 25, the micro motor 23 is started through control, because the two-way screw rod 24 is designed in a rotating way, the two ends of the two-way screw rod 24 are respectively provided with threads with different rotating directions, and because each arc-shaped supporting block 25 is connected with one end thread of the two-way screw rod 24, each arc-shaped supporting block 25 is connected with the inner wall of the base in a sliding way, the output of micromotor 23 and the one end fixed connection of two-way lead screw 24, and then drive two-way lead screw 24 and keep away from each other, prop tightly the department along going up and following down of the anterior door window of the automobile body of sports car, with the cooperation of propping subassembly 13 in another third, prop tight centre gripping to the front and back door window of the automobile body of sports car to play the fixed action, then weld the automobile body through welding equipment.

Because the length size of sports car has the difference, therefore the automobile body length of sports car has the difference, when meetting the great sports car automobile body of length and need welding, start unipolar cylinder 27 through the controller, because the outer wall fixed connection of its output and the base that is close to traveller 26, because this base passes through two traveller 26 sliding connection with triangular platform 8 again, and then make this slide to the one end of keeping away from driving motor 29 and slide, and then make the interval increase of this base and another base, with the centre gripping interval that increases four arc bracers 25, satisfy the centre gripping requirement to the automobile body of different sports cars.

Prop subassembly 11 in two first, prop subassembly 12 in two seconds and two third and prop subassembly 13 mainly through stretching into in the door window on the automobile body of every motorcycle type, prop tightly along with following with going up of door window, play the fixed action, and be provided with the slot on the card stopper 28, it is spacing to block along with following down going up of door window after conveniently stretching into, be favorable to promoting the centre gripping stability, the tip of every slot all is equipped with the oblique angle structure, make things convenient for card stopper 28 to slide in on the door window along with following, promote the clamping speed.

When a vehicle body of a three-compartment vehicle type needs to be clamped, the driving motor 29 is started through the controller, the first chain wheel 30 is sleeved with the output end of the first chain wheel, the second chain wheel 31 is connected with one of the rotating shafts 10 close to the driving motor 29, and the triangular table 8 is rotatably connected with the two supporting plates through the two rotating shafts 10, the first chain wheel 30 and the second chain wheel 31 are sleeved through the chain 32, the first chain wheel 30 is smaller than the second chain wheel 31, and then the triangular table 8 is driven to rotate slowly until the top of the triangular table 8 rotates to face the conveying device.

When the height of fixed establishment 4 is adjusted to needs, when the centre gripping height is adjusted to needs promptly, start propelling movement cylinder 6 through the controller, because push pedal 37 and cylinder gasket output end fixed connection, because push pedal 37 and two second racks 34 are close to the one end fixed connection of propelling movement cylinder 6 again to drive two second racks 34 and slide to the one end of keeping away from propelling movement cylinder 6 inside two guide rails.

When the second rack 34 slides to the one end of keeping away from push cylinder 6 inside the guide rail, because second rack 34 is connected with the meshing of second gear 33, second gear 33 cup joints with the articulated shaft, thereby drive the articulated shaft clockwise rotation, again because pendulum rod 35 and articulated shaft fixed connection, the bottom of lifter plate 5 and the one end that the articulated shaft was kept away from to pendulum rod 35 are articulated with the both ends of ejector pin 36 respectively, lifter plate 5 and base 1 sliding connection, and then drive the 4 rises of fixed establishment at lifter plate 5 and top, until reaching required clamping height, satisfy the centre gripping requirement of the automobile body of not unidimensional, the practicality of this anchor clamps has been promoted.

Example two

Referring to fig. 7 and 11, in order to ensure that the triangular table 8 does not rotate or have angular deviation after rotating in place, an elastic rod 38 is fixedly arranged on the outer wall of each support plate, a hemispherical buckle 39 is fixedly arranged at one end of each elastic rod 38 away from the support plate, three clamping grooves 40 are uniformly arranged on each side wall of the triangular table 8, each hemispherical buckle 39 is clamped with one clamping groove 40, the angular distance between every two clamping grooves 40 is one hundred twenty degrees, because the triangular table 8 is in a regular triangular structure and has three equal edges, when the triangular table 8 rotates initially, the hemispherical buckle 39 receives the interference force of the side wall of the triangular table 8 to contract the elastic rod 38, so that the hemispherical buckle 39 is separated from the initial clamping groove 40, the triangular table 8 can rotate continuously, and when the hemispherical buckle 39 rotates to the next clamping groove 40, the hemispherical buckle 39 is not interfered, therefore, the elastic rod 38 resets, the hemispherical buckle 39 is firmly abutted to the next clamping groove 40, the triangular platform 8 can be guaranteed to rotate by one hundred twenty degrees at each time, the switching of the two first inner support assemblies 11, the two second inner support assemblies 12 and the two third inner support assemblies 13 is just met, the clamping requirements of different vehicle types are met, and the flexibility and the switching accuracy of the clamp are improved.

Claims

1. The utility model provides a trihedron, multi-vehicle type sharing spot welding anchor clamps, includes base (1), its characterized in that:

also comprises a controller, a height adjusting mechanism (2), a turnover mechanism (3) and a fixing mechanism (4),

the height adjusting mechanism (2) is arranged at the top of the base (1) and used for driving the turnover mechanism (3) and the fixing mechanism (4) to ascend, the height adjusting mechanism (2) comprises a lifting plate (5), a pushing cylinder (6) and two jacking components (7), the pushing cylinder (6) is fixedly arranged at the top of the base (1), the two jacking components (7) are symmetrically arranged at the top of the base (1), the output end of the pushing cylinder (6) is fixedly connected with the two jacking components (7), the lifting plate (5) is arranged at the top of the base (1) in a sliding manner,

the turnover mechanism (3) is arranged at the top of the lifting plate (5), the turnover mechanism (3) comprises a triangular table (8), a driving component (9) and two rotating shafts (10), the top of the lifting plate (5) is symmetrically provided with two supporting plates, each rotating shaft (10) is inserted into the top of one supporting plate, the triangular table (8) is fixedly arranged between the two rotating shafts (10), the driving component (9) is arranged on the outer wall of one supporting plate, the driving component (9) is fixedly connected with one rotating shaft (10),

the outer wall of a triangular table (8) is provided with a fixing mechanism (4), the fixing mechanism (4) comprises two first inner supporting assemblies (11), two second inner supporting assemblies (12) and two third inner supporting assemblies (13), the two first inner supporting assemblies (11), the two second inner supporting assemblies (12) and the two third inner supporting assemblies (13) are respectively arranged on the three outer walls of the triangular table (8), and each of the pushing cylinder (6), the driving assembly (9), each of the first inner supporting assemblies (11), each of the second inner supporting assemblies (12) and each of the third inner supporting assemblies (13) is electrically connected with the controller.

2. The trihedral, multi-vehicle type common spot welding jig according to claim 1, characterized in that: every first internal stay subassembly (11) all includes servo motor (14), carousel (15), two connecting rods (16) and two first bracers (17), the fixed two base plates that are equipped with on the front portion outer wall of triangle platform (8), servo motor (14) are inserted and are established on the inner wall of base plate, the base plate is passed to its output, carousel (15) cover is established on its output, every first bracer (17) all slide and establish on the base plate, every connecting rod (16) all articulate the setting between the one end outer wall of carousel (15) and the one end outer wall of first bracer (17), servo motor (14) are connected with the controller electricity.

3. The trihedral, multi-vehicle type common spot welding jig according to claim 2, characterized in that: every second internal stay subassembly (12) all includes step motor (18), first gear (19), two first racks (20) and two second bracers (21), the fixed two base stations that are equipped with in top of triangular platform (8), every second bracer (21) all slides and establish the top one end at the base station, step motor (18) are inserted and are established on the inner wall of base station, the base station top is passed through to its output, first gear (19) cover is established on its output, every first rack (20) all is fixed to be established on the one end outer wall of a second bracer (21), first gear (19) and two first racks (20) all mesh and connect, and the fixed two slide rail (22) that are equipped with in top of base station, every first rack (20) all with a slide rail (22) sliding connection, step motor (18) are connected with the controller electricity.

4. The trihedral, multi-vehicle-type common spot welding jig according to claim 3, characterized in that: every third internal stay subassembly (13) all includes micromotor (23), two-way lead screw (24) and two arc bracers (25), it is the symmetry on the back outer wall of triangle platform (8) and is provided with two bases, one of them is close to the base of driving motor (29) and the outer wall fixed connection of triangle platform (8), it all is the symmetry on the outer wall of every base and is provided with two spouts, every arc bracer (25) all slide and establish the inside at a spout, two-way lead screw (24) rotate and set up on the inner wall of base, every arc bracer (25) all with the one end threaded connection of two-way lead screw (24), micromotor (23) are fixed to be established on the outer wall of base, its output and the one end fixed connection of two-way lead screw (24), micromotor (23) are connected with the controller electricity.

5. The trihedral, multi-vehicle type common spot welding jig according to claim 4, characterized in that: the other base is connected with the outer wall of the triangular table (8) in a sliding mode through two sliding columns (26), a single-shaft air cylinder (27) is fixedly arranged on the outer wall of the triangular table (8), the output end of the single-shaft air cylinder is fixedly connected with the outer wall of the base close to the sliding columns (26), and the single-shaft air cylinder (27) is electrically connected with the controller.

6. The trihedral, multi-vehicle type common spot welding jig according to claim 5, characterized in that: the outer walls of each first supporting block (17) and each second supporting block (21) are fixedly provided with a clamping plug (28).

7. The trihedral, multi-vehicle-type common spot welding jig according to claim 6, characterized in that: drive assembly (9) include driving motor (29), first sprocket (30) and second sprocket (31), and fixed the establishing on the outer wall of one of them backup pad of driving motor (29), and first sprocket (30) cover is established on its output, and second sprocket (31) cover is established on one of them rotation axis (10) that is close to driving motor (29), and the cover is equipped with chain (32) between first sprocket (30) and second sprocket (31), and driving motor (29) are connected with the controller electricity.

8. The trihedral, multi-vehicle-type common spot welding jig according to claim 7, characterized in that: every jacking subassembly (7) all includes second gear (33), second rack (34), pendulum rod (35) and ejector pin (36), the articulated shaft has been inserted at the top of base (1), second gear (33) and pendulum rod (35) are all fixed to be established on the one end outer wall of articulated shaft, ejector pin (36) are articulated to be set up in the bottom of lifter plate (5) and between the one end of articulated shaft was kept away from in pendulum rod (35), the top of base (1) is the symmetry and is provided with two guide rails, second rack (34) slide and set up the top at one of them guide rail, second gear (33) and second rack (34) meshing are connected.

9. The trihedral, multi-vehicle type common spot welding jig according to claim 8, characterized in that: the push plate (37) is fixedly arranged at the output end of the pushing cylinder (6), the push plate (37) and one end of each of the two second racks (34) close to the pushing cylinder (6) are fixedly connected, and a groove for sliding the push plate (37) to avoid is formed in each guide rail.

10. The trihedral, multi-vehicle type common spot welding jig according to claim 1, characterized in that: all fixed elastic rod (38) that is equipped with on the outer wall of every backup pad, the one end that the backup pad was kept away from in every elastic rod (38) all is fixed hemispherical buckle (39) of being equipped with, and impartial interval is provided with three draw-in groove (40) on every lateral wall of triangular platform (8), and every hemispherical buckle (39) all rather than one of them draw-in groove (40) joint.