A loader frame assembly welding tool

Abstract

The application discloses a loader frame assembly welding tool, and relates to the processing technology field of the loader.The tool comprises a tool table, a tail pressing unit, an internal supporting unit and a side plate clamping unit.The tail pressing unit comprises a group of sliding seats, two groups of internal supporting seats and a group of external supporting seats.The two external supporting seats are fixed on the two side edges of the rear side of the top surface of the tool table, and the two groups of internal supporting seats are arranged on the inner sides of the two external supporting seats.The L-shaped corner seat or the internal positioning seat can be used for the rough guiding of the front end of the workpiece, the side plate clamping unit can clamp the side plate of the workpiece, the tail pressing unit can press and clamp the tail of the workpiece, and the tail pressing unit has the characteristics of sliding adjustment, is suitable for the use of the frames of multiple specifications and models, has a wide application range, can reduce the use of the tool tables and welding robots of different specifications, has high efficiency, and saves equipment cost.

Description

Technical Field

[0001] This invention belongs to the field of loader processing technology, and in particular relates to a tooling for welding loader frame assemblies. Background Technology

[0002] Welding of the loader frame assembly is challenging due to its relatively large size and weight, requiring numerous fixtures for positioning and clamping. The large number of fixtures used is inconvenient for operators and affects equipment costs. In particular, for different frame models, each model requires a tooling table (corresponding to a tooling area, welding robot, and positioner), resulting in a large footprint and high cost.

[0003] If adjustable fixtures are designed on the tooling table for use with different models of vehicle frames (such as sliding fixtures), the relatively large size and weight of the vehicle frames make them difficult to control, especially for clamping the side panels. The reverse force generated after clamping will be transmitted to the fixture, and then to the sliding connection, affecting the service life and stability of the fixture. If the fixture has a positional deviation, there will be problems with insufficient positioning and clamping accuracy, which will affect the welding accuracy of the subsequent welding robot (the welding robot and positioner achieve automated welding through programming), thus affecting the quality of the workpiece. Therefore, the current tooling table cannot be used for multiple models of vehicle frames. Summary of the Invention

[0004] The purpose of this invention is to provide a tooling for welding loader frame assemblies. The L-shaped corner seat or inner positioning seat can be used for coarse guidance of the front end of the workpiece. The side plate clamping unit can clamp the side plate of the workpiece. The tail clamping unit can clamp the tail of the workpiece. It also has the feature of sliding adjustment. It is suitable for use with frames of various specifications and models, has a wide range of applications, can reduce the use of different specifications of tooling tables and welding robots, has high efficiency, and saves equipment costs.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a tooling for welding a loader frame assembly, comprising a tooling table, a rear clamping unit, an internal support unit, and a side plate clamping unit;

[0007] The tail clamping unit includes a set of slides, two sets of inner support seats, and a set of outer support seats;

[0008] The two outer support seats are respectively fixed on the two sides of the rear side of the top surface of the tooling table, and the two sets of inner support seats are respectively set inside the two outer support seats. The top of the inner support seats and the outer support seats are fixed with positioning pins.

[0009] The slide is connected with the top of the tooling table through the slide rail and is located between the two inner support seats on the same side of the tooling table, a third oil cylinder is arranged between the slide and the tooling table, a group of vertical rotary oil cylinders are fixed outside the slide, two straight arm-shaped support arms are fixed at the output end of the rotary oil cylinder, and different length pressing rods are respectively fixed at the bottom of the two support arms;

[0010] The internal support unit comprises front clamping mechanisms and rear clamping mechanisms with consistent structures, the front clamping mechanisms and the rear clamping mechanisms are fixed on the top surface of the tooling table through the brackets distributed in front and back, and the height of the bracket of the rear clamping mechanism is greater than that of the front clamping mechanism.

[0011] The front clamping mechanism comprises a group of connecting seats, the two connecting seats are respectively fixed on both sides of the top of the bracket, two second oil cylinders are movably connected between the two connecting seats, upper pushing heads sliding along the upper part of the connecting seat are connected to the two ends of one second oil cylinder, and lower pushing heads sliding along the lower part of the connecting seat are connected to the two ends of the other second oil cylinder.

[0012] The side plate clamping unit comprises two head clamping modules and two tail clamping modules fixed on the top of the tooling table, the two head clamping modules are symmetrically arranged on the two side edges of the front side of the tooling table, and the two tail clamping modules are symmetrically arranged on the two sides of the rear clamping mechanism.

[0013] The tail clamping module comprises a mountain-shaped clamp table, the head clamping module comprises an inner clamp table and an outer clamp table, and the clamping grooves on the inner clamp table and the outer clamp table are respectively opposite to the two clamping grooves on the mountain-shaped clamp table.

[0014] First oil cylinders are fixed on the two sides of the mountain-shaped clamp table, one side of the inner clamp table and one side of the outer clamp table, the output end of the first oil cylinder extends into the clamping groove and is fixed with a pin head.

[0015] Two outer positioning wheels with different heights are fixed on the two side edges of the top of the tooling table, a first inner positioning wheel is fixed on the two side edges of the top of the tooling table, a second inner positioning wheel opposite to the first inner positioning wheel is fixed on the inner side of the outer positioning wheel on the left side of the tooling table, and a third inner positioning wheel opposite to the first inner positioning wheel is fixed on the right side of the bracket of the rear clamping mechanism.

[0016] Further, L-shaped corner seats are fixed on the two side edges of the front side of the tooling table, an outer positioning groove is formed between the L-shaped corner seat and the front side of the tooling table, an inner positioning seat is fixed outside the first oil cylinder outside the outer clamp table, and an inner positioning groove is formed between the inner positioning seat and the inner clamp table.

[0017] Further, the shell end of the third oil cylinder is fixed with the tooling table through the stand column and the connecting piece, the output ends of the two third oil cylinders are respectively connected with the front side and the rear side of the two slides, and the two third oil cylinders are parallelly distributed.

[0018] Further, the upper pushing head is internally provided with a pushing plate, both ends of the pushing plate are fixedly provided with guide rods, the guide rods penetrate through the upper portions of both sides of the connecting seat and are in sliding connection with the connecting seat, and the guide rods are fixedly provided with limit heads at the ends away from the pushing plate.

[0019] Further, the lower pushing head is internally provided with a pushing rod connected with the second oil cylinder, the pushing rod penetrates through the connecting seat and is in sliding connection along the lower portion of the connecting seat.

[0020] Further, the tooling table comprises a rectangular frame body, a plurality of cross beams are fixedly arranged in the rectangular frame body, a displacement machine mounting seat is fixedly arranged at the bottom between the cross beams, and an upper panel is fixedly arranged at the top of the rectangular frame body.

[0021] Further, the front clamping mechanism and the rear clamping mechanism, and the front clamping mechanism and the head clamping module are all provided with cover plates, the cover plates are fixedly arranged on the top of the upper panel through the elevation blocks, and a plurality of accommodation openings are arranged on the cover plates.

[0022] Further, wear-resistant plates are fixedly arranged on the inner walls of the clamping grooves on the X-shaped clamp table, the inner clamp table and the outer clamp table and away from the pin heads, and the wear-resistant plates are detachably fixed with the clamping grooves through fasteners.

[0023] Further, first protective covers are fixedly arranged between the two connecting seats on the front clamping mechanism and the rear clamping mechanism, and a second protective cover is fixedly arranged between the connecting pieces at the ends of the third oil cylinder casings.

[0024] Further, hydraulic hand plate valves are arranged on the oil circuits of the first oil cylinder, the second oil cylinder, the third oil cylinder and the rotary oil cylinder, and a plurality of the hydraulic hand plate valves are fixedly arranged on the outside of the rectangular frame body and form a control area.

[0025] The present application has the following beneficial effects:

[0026] 1、The L-shaped corner seat or the inner positioning seat can be used for rough guiding of the front end of the workpiece, the side plate clamping unit can clamp the side plate of the workpiece, the design of the outer positioning wheel and the inner positioning wheel can adapt to the notch on the side plate of the workpiece, rough positioning of the support and the side plate can be performed, the design of the tail pressing unit can press and clamp the tail of the workpiece, and the tail pressing unit has the characteristics of sliding adjustment, is suitable for use of multiple specifications and models of the vehicle frame, a single displacement machine and the tooling table are suitable for use of multiple specifications and types of the vehicle frame, the application range is wide, and the position interference does not occur when different models of the vehicle frame are used, the use of the vehicle frame is met, the use of different specifications of tooling tables and welding robots is reduced, the efficiency is high, and the equipment cost is saved.

[0027] 2、The present application is aimed at the clamping of the side plate, the pin head in the clamping groove can be positioned and limited, through the design of the positioning pin on the inner support seat and the outer support seat, the positioning and limiting of the workpiece bottom plate, and through the outer positioning wheel and the inner positioning wheel, the positioning and support of the upper side plate gap of the workpiece, which is beneficial to feeding and can accurately determine the position of the workpiece, providing high-precision clamping for subsequent automatic welding, ensuring the accuracy of the workpiece position.

[0028] 3、The present application improves the service life of the anvil by setting wear-resistant plates in the clamping groove of the anvil, and positioning and clamping through the cooperation of the pin head extending into the clamping groove and the pin hole on the side plate, which is more stable than the clamping force generated by friction and pressure alone, thereby improving the stability of the side plate position.

[0029] 4、The present application forms two linear clamping grooves for the frame side plate through the cooperation of the inner anvil, the outer anvil and the mountain-shaped anvil, which is more stable than the adjustable clamp with sliding design, because the frame is heavy and relatively large in size, affecting the stability of the sliding clamp, so the fixed anvil clamp used in the present application is more stable and suitable for use with the frame.

[0030] 5、The internal support unit can support inside the workpiece to prevent deformation of the workpiece and welding deformation, improve the stability of the tooling, and also has two supporting modes of upper and lower push heads, the lower push head is shorter than the upper push head in extension length, and is suitable for use with the frame with smaller width, improving the scope of application.

[0031] Of course, implementing any product of the present application does not necessarily require achieving all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0033] Figure 1 It is a structure schematic view of a loader frame assembly welding tool of the present application;

[0034] Figure 2 It is a structure schematic view of a tail compression unit;

[0035] Figure 3 It is a structure schematic view of a front clamping mechanism;

[0036] Figure 4 It is a structure schematic view of a head clamping module and a tail clamping module;

[0037] Figure 5 is a structural schematic diagram of the tooling table;

[0038] Figure 6 is a structural schematic diagram of the tooling table after installing the first shield and the second shield;

[0039] Figure 7 is a structural schematic diagram of the tooling table for S530 model frame;

[0040] Figure 8 is a structural schematic diagram of the tooling table for S510 model frame;

[0041] Figure 9 is a structural schematic diagram of the tooling table for S450 model frame;

[0042] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0043] 1 - tooling table, 2 - tail pressing unit, 3 - front clamping mechanism, 4 - side plate clamping unit, 5 - rear clamping mechanism, 6 - support, 7 - head clamping module, 8 - tail clamping module, 9 - L-shaped corner seat, 10 - outer positioning wheel, 11 - first inner positioning wheel, 12 - second inner positioning wheel, 13 - third inner positioning wheel, 14 - first shield, 15 - second shield, 101 - rectangular frame body, 102 - cross beam, 103 - positioner mounting seat, 104 - upper panel, 105 - cover plate, 106 - heightening block, 107 - accommodation opening, 108 - control area, 201 - inner support seat, 202 - outer support seat, 203 - sliding seat, 204 - positioning pin, 205 - sliding rail, 206 - third oil cylinder, 207 - rotary oil cylinder, 208 - support arm, 209 - pressing rod, 210 - stand column, 211 - connecting piece, 301 - connecting seat, 302 - second oil cylinder, 303 - upper pushing head, 304 - lower pushing head, 305 - pushing plate, 306 - guide rod, 307 - limiting head, 308 - pushing rod, 701 - inner clamp table, 702 - outer clamp table, 703 - inner positioning seat, 801 - mountain-shaped clamp table, 802 - first oil cylinder, 803 - pin head, 804 - wear-resistant plate. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] Please refer to Figures 1-6As shown, the present application is a kind of welding tool for loading frame assembly, including tooling table 1, tail compression unit 2, internal support unit and side plate clamping unit 4;

[0046] Tail compression unit 2 includes a group of slide 203, two groups of inner support seat 201 and a group of outer support seat 202;

[0047] Two outer support seat 202 are respectively fixed on the two sides of the top surface of tooling table 1, two groups of inner support seat 201 are respectively arranged on the inner side of two outer support seat 202, and the top of inner support seat 201 and outer support seat 202 is fixed with positioning pin 204;

[0048] Slide 203 is connected with the top of tooling table 1 through slide rail 205 and is located between the two inner support seats 201 on the same side of tooling table 1, third oil cylinder 206 is arranged between slide 203 and tooling table 1, a group of vertical rotary oil cylinder 207 is fixed on the outer side of slide 203, two right angle shaped support arms 208 are fixed on the output end of rotary oil cylinder 207, and the bottom of two support arms 208 is respectively fixed with different length compression rod 209;

[0049] Internal support unit includes front clamping mechanism 3 and rear clamping mechanism 5 with consistent structure, front clamping mechanism 3 and rear clamping mechanism 5 are fixed on the top surface of tooling table 1 through the front and rear distribution of support 6, and the height of support 6 of rear clamping mechanism 5 is greater than the height of support 6 of front clamping mechanism 3;

[0050] Front clamping mechanism 3 includes a group of connecting seat 301, two connecting seat 301 are respectively fixed on the top of support 6, two second oil cylinder 302 are movably connected between two connecting seat 301, the two ends of one second oil cylinder 302 are connected with upper push head 303 sliding along the upper part of connecting seat 301, and the two ends of another second oil cylinder 302 are connected with lower push head 304 sliding along the lower part of connecting seat 301;

[0051] Side plate clamping unit 4 includes two head clamping modules 7 and two tail clamping modules 8 fixed on the top of tooling table 1, two head clamping modules 7 are symmetrically arranged on the two sides of the front side of tooling table 1, and two tail clamping modules 8 are symmetrically arranged on the two sides of rear clamping mechanism 5;

[0052] Tail clamping module 8 includes mountain type clamp table 801, head clamping module 7 includes inner clamp table 701 and outer clamp table 702, and the clamping grooves on inner clamp table 701 and outer clamp table 702 are respectively opposite to the two clamping grooves on mountain type clamp table 801;

[0053] First oil cylinder 802 is fixed on the two sides of mountain type clamp table 801, one side of inner clamp table 701 and one side of outer clamp table 702, and the output end of first oil cylinder 802 extends into the clamping groove and is fixed with pin head 803;

[0054] Two outer positioning wheels 10 with different heights are fixed on both sides of the top of the tool table 1, and a first inner positioning wheel 11 is fixed on both sides of the top of the tool table 1, and a second inner positioning wheel 12 opposite to the first inner positioning wheel 11 is fixed on the inner side of the outer positioning wheel 10 on the left side of the tool table 1, and a third inner positioning wheel 13 opposite to the first inner positioning wheel 11 is fixed on the right side of the support 6 of the rear clamping mechanism 5.

[0055] As shown in Figure 1 , Figures 6-7 and Figure 9 , an L-shaped corner seat 9 is fixed on both sides of the front side of the tool table 1, and an outer positioning groove is formed between the L-shaped corner seat 9 and the front side of the tool table 1, and an inner positioning seat 703 is fixed on the outer side of the first oil cylinder 802 on the outer side of the outer pliers table 702, and an inner positioning groove is formed between the inner positioning seat 703 and the inner pliers table 701.

[0056] As shown in Figures 1-2 , the shell end of the third oil cylinder 206 is fixed with the tool table 1 through the column 210 and the connecting piece 211, the output ends of the two third oil cylinders 206 are connected with the front side and the rear side of the two sliding seats 203 respectively, and the two third oil cylinders 206 are distributed in parallel.

[0057] As shown in Figure 3 , the inner side of the push head 303 is provided with a push plate 305, the inner sides of both ends of the push plate 305 are fixed with guide rods 306, the guide rods 306 penetrate through the upper parts of both sides of the connecting seat 301 and are slidingly connected with the connecting seat 301, and the ends of the guide rods 306 away from the push plate 305 are fixed with limit heads 307.

[0058] As shown in Figure 3 , the inner side of the push head 304 is provided with a push rod 308 connected with the second oil cylinder 302, and the push rod 308 penetrates through the connecting seat 301 and is slidingly connected along the lower part of the connecting seat 301.

[0059] As shown in Figure 5 , the tool table 1 comprises a rectangular frame body 101, a group of cross beams 102 are fixed in the rectangular frame body 101, a displacement machine mounting seat 103 is fixed at the bottom between the group of cross beams 102, and an upper panel 104 is fixed at the top of the rectangular frame body 101.

[0060] As shown in Figure 1 and Figures 5-6 , the cover plate 105 is fixed on the top of the upper panel 104 through the pad block 106, and a plurality of accommodation openings 107 are arranged on the cover plate 105.

[0061] As shown in Figure 4 and Figure 6As shown in the figure, the inner wall of the clamping groove on the mountain-shaped anvil 801, the inner anvil 701 and the outer anvil 702 and away from the pin head is fixed with a wear plate 804, and the wear plate 804 is detachably fixed with the clamping groove through fasteners.

[0062] As shown in the figure, Figure 6 As shown in the figure, the first shield 14 is fixed between the two connecting seats 301 of the front clamping mechanism 3 and the rear clamping mechanism 5, and the second shield 15 is fixed between the connecting pieces 211 of the two third oil cylinders 206.

[0063] As shown in the figure, Figure 1 And Figures 5-6 As shown in the figure, the oil circuit of the first oil cylinder 802, the second oil cylinder 302, the third oil cylinder 206 and the rotary oil cylinder 207 is provided with a hydraulic hand plate valve, and the plurality of hydraulic hand plate valves are fixed on the outer side of the rectangular frame body 101 and form a control area 108.

[0064] The working principle of the application is:

[0065] For the use of S530 model frame, as shown in the figure, Figure 7 The front end of the workpiece is coarsely guided and positioned by the L-shaped corner seat 9, the side plate of the workpiece is clamped by the clamping groove outside the outer anvil 702 and the mountain-shaped anvil 801, the pin head 803 in the clamping groove passes through the pin hole on the side plate, and the outer positioning wheel 10 on both sides coarsely positions and supports the notch of the side plate, the second oil cylinder 302 on the upper part of the front clamping mechanism 3 and the rear clamping mechanism 4 operates, controls the upper pushing head 303 at both ends to push out, supports inside the frame workpiece, prevents the workpiece from being deformed and the deformation of welding, the bottom plate of the workpiece tail is attached to the upper surface of the outer support seat 202, and the positioning pin 204 on the outer support seat 202 passes through the pin hole on the workpiece bottom plate, and the third oil cylinder 206 can control the two sliding seats 203 to move outward, and the pressure rod 209 can press the upper part of the workpiece bottom plate to be pressed.

[0066] For S510 model frame, as shown in the figure, Figure 8 Compared with the use of the above-mentioned S530 model frame, the difference lies in the different tail clamping, the workpiece bottom plate is still attached to the outer support seat 202, the position of the positioning pin 204 on the outer support seat 202 is adjusted to adapt to the use of this model frame, and the pressure rod 209 still presses the workpiece bottom plate.

[0067] For S450 model frame, as shown in the figure, Figure 9As shown, the front end of the workpiece is coarsely guided and positioned by the inner positioning seat 703, the side plate of the workpiece is clamped by the clamping groove on the inner side of the inner vice table 701 and the mountain-shaped vice table 801, the pin head 803 in the clamping groove passes through the pin hole on the side plate, and the first inner positioning wheel 11, the second inner positioning wheel 12 and the third inner positioning wheel 13 coarsely position and support the notch of the side plate, the second oil cylinder 302 on the lower part of the front clamping mechanism 3 and the rear clamping mechanism 4 operates, controls the lower pushing head 304 at both ends to push out, supports the inside of the frame workpiece, prevents the workpiece from being deformed and the deformation caused by welding, the bottom plate at the tail of the workpiece is attached to the upper surface of the inner support seat 201 and the positioning pin 204 on the inner support seat 201 passes through the pin hole on the bottom plate of the workpiece, the third oil cylinder 206 can control the two sliding seats 203 to move outward, and the upper part of the workpiece bottom plate can be pressed and clamped by the pressing rod 209.

[0068] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0069] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their entire scope and equivalents.

Claims

1. A tooling for welding a loader frame assembly, characterized in that: It includes a tooling table (1), a tail clamping unit (2), an internal support unit, and a side plate clamping unit (4); The tail clamping unit (2) includes a set of slides (203), two sets of inner support seats (201) and a set of outer support seats (202); The two outer support seats (202) are respectively fixed on the two sides of the rear side of the top surface of the tooling table (1), and the two sets of inner support seats (201) are respectively set on the inner side of the two outer support seats (202). The top of the inner support seats (201) and the outer support seats (202) are fixed with positioning pins (204). The slide (203) is slidably connected to the top of the tooling table (1) via the slide rail (205) and located between two inner support seats (201) on the same side of the tooling table (1). A third oil cylinder (206) is provided between the slide (203) and the tooling table (1). A set of vertically arranged rotary oil cylinders (207) is fixed on the outside of the slide (203). Two right-angled support arms (208) are fixed at the output end of the rotary oil cylinder (207). Pressure rods (209) of different lengths are fixed at the bottom of the two support arms (208). The internal support unit includes a front clamping mechanism (3) and a rear clamping mechanism (5) with the same structural features. The front clamping mechanism (3) and the rear clamping mechanism (5) are fixed to the top surface of the tooling table (1) by means of brackets (6) distributed in front and behind. The height of the bracket (6) of the rear clamping mechanism (5) is greater than the height of the bracket (6) of the front clamping mechanism (3). The front clamping mechanism (3) includes a set of connecting seats (301). The two connecting seats (301) are respectively fixed on the top two sides of the bracket (6). Two second oil cylinders (302) are movably connected between the two connecting seats (301). One second oil cylinder (302) has an upper push head (303) that slides along the upper part of the connecting seat (301) at both ends. The other second oil cylinder (302) has a lower push head (304) that slides along the lower part of the connecting seat (301) at both ends. The side plate clamping unit (4) includes two head clamping modules (7) and two tail clamping modules (8) fixed on the top of the tooling table (1). The two head clamping modules (7) are symmetrically arranged on the two sides of the front side of the tooling table (1), and the two tail clamping modules (8) are symmetrically arranged on both sides of the rear clamping mechanism (5). The tail clamping module (8) includes a mountain-shaped clamp (801), and the head clamping module (7) includes an inner clamp (701) and an outer clamp (702). The clamping grooves on the inner clamp (701) and the outer clamp (702) are respectively opposite to the two clamping grooves on the mountain-shaped clamp (801). The first hydraulic cylinder (802) is fixed on both sides of the mountain-shaped clamp (801), one side of the inner clamp (701) and one side of the outer clamp (702). The output end of the first hydraulic cylinder (802) extends into the clamping groove and is fixed with a pin (803). Two outer positioning wheels (10) of different heights are fixed on both sides of the top of the tooling table (1). A first inner positioning wheel (11) is fixed on both sides of the top of the tooling table (1). A second inner positioning wheel (12) opposite to the first inner positioning wheel (11) is fixed on the inner side of the outer positioning wheel (10) on the left side of the tooling table (1). A third inner positioning wheel (13) opposite to the first inner positioning wheel (11) is fixed on the right side of the bracket (6) of the rear clamping mechanism (5).

2. The tooling for welding a loader frame assembly according to claim 1, characterized in that, Both sides of the front side of the tooling table (1) are fixed with L-shaped corner seats (9), and an outer positioning groove is formed between the L-shaped corner seats (9) and the front side of the tooling table (1). An inner positioning seat (703) is fixed on the outside of the first oil cylinder (802) on the outside of the outer clamp (702), and an inner positioning groove is formed between the inner positioning seat (703) and the inner clamp (701).

3. The tooling for welding a loader frame assembly according to claim 1, characterized in that, The housing end of the third oil cylinder (206) is fixed to the tooling table (1) through the column (210) and the connector (211). The output ends of the two third oil cylinders (206) are respectively connected to the front and rear sides of the two slides (203). The two third oil cylinders (206) are distributed in parallel.

4. The tooling for welding a loader frame assembly according to claim 1, characterized in that, The upper push head (303) is provided with a push plate (305) on the inner side. Guide rods (306) are fixed on the inner sides of both ends of the push plate (305). The guide rods (306) pass through the upper parts of both sides of the connecting seat (301) and are slidably connected to the connecting seat (301). A limit head (307) is fixed at the end of the guide rod (306) away from the push plate (305).

5. The tooling for welding a loader frame assembly according to claim 4, characterized in that, The inner side of the lower push head (304) is provided with a push rod (308) connected to the second oil cylinder (302). The push rod (308) passes through the connecting seat (301) and slides along the lower part of the connecting seat (301).

6. The tooling for welding a loader frame assembly according to claim 1, characterized in that, The tooling table (1) includes a rectangular frame (101), a set of crossbeams (102) are fixed inside the rectangular frame (101), a positioner mounting base (103) is fixed at the bottom between the set of crossbeams (102), and a top panel (104) is fixed at the top of the rectangular frame (101).

7. The tooling for welding a loader frame assembly according to claim 6, characterized in that, Cover plates (105) are provided between the front clamping mechanism (3) and the rear clamping mechanism (5), and between the front clamping mechanism (3) and the head clamping module (7). The cover plates (105) are fixed to the top of the top plate (104) by the shims (106). The cover plates (105) are provided with several clearance openings (107).

8. The tooling for welding a loader frame assembly according to claim 1, characterized in that, Wear-resistant plates (804) are fixed to the inner walls of the clamping grooves on the mountain-shaped clamping table (801), inner clamping table (701) and outer clamping table (702) away from the pin head. The wear-resistant plates (804) are detachably fixed to the clamping grooves by fasteners.

9. The tooling for welding a loader frame assembly according to claim 3, characterized in that, A first protective cover (14) is fixed between the two connecting seats (301) on the front clamping mechanism (3) and the rear clamping mechanism (5), and a second protective cover (15) is fixed between the connecting parts (211) at the housing ends of the two third oil cylinders (206).

10. A tooling for welding a loader frame assembly according to claim 6, characterized in that, Hydraulic hand valves are provided on the oil lines of the first oil cylinder (802), the second oil cylinder (302), the third oil cylinder (206) and the rotary oil cylinder (207), and several of the hydraulic hand valves are fixed on the outside of the rectangular frame (101) and form a control area (108).

Images