CN108044279A - Six points of seat support rack assembly welding clamps - Google Patents

Abstract

The invention discloses a welding fixture for a six-point seat support frame assembly, which comprises a bottom plate for placing various components of the seat support frame, two rear foot plate positioning blocks installed on the bottom plate corresponding to the various components of the seat support frame, and two Block front foot plate positioning block, support block, backrest mounting seat positioning mechanism, horizontal tube positioning block, hole positioning mechanism, connecting frame positioning block, first compression mechanism, second compression mechanism and the third compression mechanism. The present invention is a welding jig for a six-point seat support frame assembly, which synchronously aligns and fixes each component in an all-round way, and then positions each component on the same jig before welding, which greatly reduces the welding process and can also reduce the Reduce the error rate and improve the accuracy of hole positioning.

Description

Six-point seat support frame assembly welding fixture

technical field

The invention belongs to the technical field of seat frame welding, and in particular relates to a welding jig for a six-point seat support frame assembly.

Background technique

The six-point seat support frame is used to fix and install the seat, as shown in Figure 2: it includes two symmetrical square tube support bases, the front and rear foot plates at the front and rear ends of the square tube support base, and the two square tube support bases connected The front cross tube, the backrest mounting seat at the rear end of the square tube support seat, the rear cross tube connecting the two backrest mounting seats, the seat belt middle mounting part connecting the front cross tube and the rear cross tube, the front end of the square tube support seat Connecting frame, the connection between each part needs to be welded. Due to the large number of parts, the welding of the seat support frame in the prior art is usually the welding of local parts one by one, but this will increase the welding process and require multiple welding fixtures , and the operation process of multiple welding is complicated. Once the welding part of the intermediate link is accurate, it is very easy to cause the failure of the subsequent process, resulting in the dislocation of the positioning holes, which affects the positioning and installation of the assembly structure. Therefore, in order to solve this problem, there is a need for a welding fixture that can reduce welding procedures and hole positioning errors.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide a welding jig for a six-point seat support frame assembly. Each component is positioned on the same jig and then welded, which greatly reduces the welding process, reduces the error rate, and improves Accuracy of hole positioning.

The purpose of the present invention is achieved in the following way: a welding fixture for a six-point seat support frame assembly, the key of which is to include a base plate for placing the components of the seat support frame, and the base plate is provided with two rear foot plates corresponding to the rear side Two rear foot plate positioning blocks and two front foot plate positioning blocks provided with the two front foot plates on the front side, the two front foot plate positioning blocks are arranged symmetrically, and the front foot plate positioning blocks are fixedly arranged and provided with a slope corresponding to the slope of the front foot plate. A hole positioning pin is provided on the slope, and the hole positioning pin is connected to the telescopic shaft of the cylinder. Between the front foot plate positioning block and the rear foot plate positioning block on the same side, there are support blocks for positioning the square tube support seat, which are positioned close to the rear foot plate The outside of the block is equipped with a backrest mounting seat positioning mechanism, and a horizontal tube positioning block for pressing the front horizontal tube and the rear horizontal tube is arranged between the backrest mounting seat positioning mechanisms. For positioning and fixing the hole positioning mechanism of the middle mounting part of the safety belt, a connecting frame positioning block is provided near the front foot plate positioning block and is located on the inner side of the square tube support seat, corresponding to the front foot plate positioning block, rear foot plate positioning block and horizontal The tube positioning blocks are all provided with a first pressing mechanism, and the outer sides of the two square tube support bases correspond to the corresponding connecting frame positioning blocks are equipped with a second pressing mechanism for pressing the fixed part of the connecting frame. Two third pressing mechanisms for pressing the outgoing end of the connecting frame are arranged between the positioning blocks of the connecting frame.

With the above structure, both the front foot plate and the rear foot plate are positioned through the holes, and are respectively positioned on the front foot plate positioning block and the rear foot plate positioning block, and then the square tube support seat is positioned on the support block, so that the square tube support seat and the rear foot plate positioning block are positioned on the support block. Butt the front and rear foot plates, then place the backrest mounting seat on the rear end of the square tube support seat, and position the hole through the backrest mounting seat positioning mechanism, and at the same time support the rear horizontal tube and square tube connected between the two backrest mounting seats The front cross tube between the seats is positioned on the cross tube positioning block, and at the same time, the middle mounting part of the safety belt is positioned and fixed through the hole positioning mechanism, and the connecting frame is positioned on the connecting frame positioning block. The mechanism presses the fixing part of the connecting frame and the square tube support seat, and the third pressing mechanism positions and fixes the output end of the connecting frame, thereby aligning and fixing the various parts of the entire supporting frame, and then the various connection parts can be carried out below The welding of the welding points realizes the unified positioning of each component before welding, improves the success rate of welding, reduces the process and improves the efficiency.

Further, the positioning mechanism of the backrest mounting seat includes a transverse pushing device, a fixing seat installed on the end of the pushing shaft of the transverse pushing device, a hole positioning column and an abutment block installed on the fixing seat.

With the above-mentioned structure, the hole positioning column is positioned corresponding to the hole of the backrest mounting seat, and the abutting block abuts against the outer surface of the backrest mounting seat. The outer surface of the abutting block is flat, which can ensure the alignment installation of the backrest mounting seat. The pushing device can push out and pull back the hole positioning post and the abutting block, so as to facilitate the positioning and dismounting of the parts.

Further, a limit stop is provided corresponding to the transverse pushing device, and the transverse pushing device is a three-axis cylinder installed transversely.

With the above-mentioned structure, the limit block can limit the stroke of the lateral pushing device, preventing the excessive push-out stroke and damage to components.

Further, the above-mentioned first compression mechanism, second compression mechanism and third compression mechanism all include a vertically arranged push cylinder, a lever-type horizontal compression arm, and a support frame, and one end of the horizontal compression arm is a compression end , the other end is hinged with the outer end of the telescopic shaft that pushes the cylinder, and the middle part of the transverse pressing arm is hinged with a fixed support frame as a supporting point. With the above-mentioned structure, the cylinder is pushed to longitudinally push the horizontal pressing arm, and the pressing end of the horizontal pressing arm can be pressed down to complete the positioning and fixing.

Further, the two third pressing mechanisms are installed on the same raising frame, and the raising frame is fixedly installed on the bottom plate.

Further, the above-mentioned hole positioning mechanism includes a hole positioning seat and a hole positioning cylinder, and the hole positioning cylinder laterally abuts against the middle mounting part of the seat belt.

By adopting the above structure, the positioning through the hole facilitates the correct positioning of the middle mounting part of the safety belt. Further, a hole positioning clip on the rear end face of the square tube support seat is provided near the rear foot plate positioning block, and the hole positioning clip includes a rotating arm and a positioning pin corresponding to the position of the rear end face of the square tube support seat, and the positioning pin It is fixedly inserted on the rotating arm.

With the above-mentioned structure, the hole positioning is carried out on the rear end surface of the supporting seat of the square tube through the positioning pin. Further, the tops of the above-mentioned support block and the horizontal tube positioning block are both upward "U"-shaped limiting openings. With the above structure, it can be placed directly, which is convenient for picking and placing parts, and the operation is more convenient.

Further, upper cylinders are distributed directly below the positions of the rear transverse tube and the square tube support seat. With the above-mentioned structure, the upper cylinder lifts up synchronously to lift up the welded seat support frame assembly, which is convenient for manipulator or manual unloading.

Beneficial effect:

The invention is a welding jig for a six-point seat support frame assembly, which synchronously aligns and fixes all parts in an all-round way, and then positions each part on the same jig before welding, which greatly reduces the welding process and can also reduce the Reduce the error rate and improve the accuracy of hole positioning.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of six-point seat support frame assembly;

Fig. 3 is a perspective view of Fig. 1;

Fig. 4 is a structural representation of the fixing seat, the hole positioning column and the abutment block in Fig. 1;

Fig. 5 is a mechanism diagram of the first compression mechanism, the second compression mechanism and the third compression mechanism in Fig. 1;

Fig. 6 is a structural schematic diagram of the horizontal tube positioning block and the support block in Fig. 1;

Fig. 7 is the assembly diagram of the positioning structure at the rear end of the square tube support seat in Fig. 1;

Fig. 8 is an assembly diagram of the front foot plate positioning block and the first pressing mechanism in Fig. 1;

Among them, 1 is the bottom plate, 2 is the positioning block of the rear foot plate, 3 is the positioning block of the front foot plate, 4 is the support block, 5 is the positioning mechanism of the backrest mounting seat, 5a is the horizontal pushing device, 5b is the fixing seat, 5c is the hole positioning column, 5d is the abutment block, 6 is the horizontal tube positioning block, 7 is the hole positioning mechanism, 7a is the hole positioning seat, 7b is the hole positioning cylinder, 8 is the connecting frame positioning block, 9 is the first pressing mechanism, 9a is the pushing cylinder, 9b is a horizontal pressing arm, 9c is a support frame, 10 is a second pressing mechanism, 11 is a third pressing mechanism, 11a is an elevated frame, 12 is a limit block, 13 is a hole positioning cylinder, 13a is a rotating arm, 13b is a positioning pin, 14 is an upper top cylinder, 15 is a square tube support seat, 16 is a front foot board, 17 is a rear foot board, 18 is a backrest mounting seat, 19 is a front cross pipe, 20 is a rear cross pipe, and 21 is a safety belt Intermediate mounting part, 22 is connecting frame.

Detailed ways

The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

Example:

As shown in Figures 1 and 3: a welding fixture for a six-point seat support frame assembly, consisting of a bottom plate 1 for placing the components of the seat support frame, a rear foot plate positioning block 2, a front foot plate positioning block 3, and a support block backrest Mounting seat positioning mechanism 5, horizontal tube positioning block 6, hole positioning mechanism 7, connecting frame positioning block 8, first compression mechanism 9, second compression mechanism 10, and the third compression mechanism 11 form.

As shown in Figures 1 and 3 and 7 and 8: the base plate 1 is provided with two rear foot plates on the corresponding rear side and two front foot plates on the front side to set two rear foot plate positioning blocks 2 and two front foot plate positioning blocks 3. The two front foot plate positioning blocks 3 are symmetrically arranged, and the support block 4 of the positioning square tube support seat is provided between the front foot plate positioning block 3 and the rear foot plate positioning block 2 on the same side, as shown in Figure 6 Shown: the tops of the support block 4 and the horizontal tube positioning block 6 are both upward "U" shaped limit openings. Near the outside of the rear foot plate positioning block 2, the backrest mounting seat positioning mechanism 5 is provided, as shown in Figure 4: the backrest mounting seat positioning mechanism 5 is driven by a horizontal pusher 5a, which is installed on the horizontal pusher 5a. The fixed seat 5b at the end, the hole positioning column 5c installed on the fixed seat 5b and the abutting block 5d are composed. A limit block 12 is provided corresponding to the transverse pushing device 5a, and the transverse pushing device 5a is a three-axis cylinder installed transversely. A horizontal tube positioning block for pressing the front horizontal tube and the rear horizontal tube is provided between the positioning mechanism 5 of the backrest mounting seat, and a hole for positioning and fixing the middle mounting part of the safety belt is provided between the front horizontal tube and the rear horizontal tube The positioning mechanism 7, the hole positioning mechanism 7 is composed of a hole positioning seat 7a and a hole positioning cylinder 7b, and the hole positioning cylinder 7b laterally presses against the middle mounting part of the safety belt.

As shown in Figures 1 and 3: near the front foot plate positioning block 3, there are connecting frame positioning blocks 8 and located on the inner side of the square tube support seat, corresponding to the front foot plate positioning block 3, rear foot plate positioning block 2 and horizontal tube The positioning blocks 6 are all provided with a first pressing mechanism 9, and the outer sides of the two square tube support seats correspond to the corresponding connecting frame positioning blocks 8 are provided with a second pressing mechanism 10 for pressing the fixed part of the connecting frame. Two third pressing mechanisms 11 for pressing the output end of the connecting frame are arranged between the two connecting frame positioning blocks 8 . As shown in Figure 5: the first compression mechanism 9, the second compression mechanism 10 and the third compression mechanism 11 are all composed of a vertically arranged push cylinder 9a, a lever-type horizontal compression arm 9b and a support frame 9c, One end of the transverse pressing arm 9b is a pressing end, the other end is hinged with the outer end of the telescopic shaft of the push cylinder 9a, and the middle part of the transverse pressing arm 9b is hinged with a fixed support frame 9c as a supporting point. The two third pressing mechanisms 11 are installed on the same raising frame 11 a, and the raising frame 11 a is fixedly installed on the bottom plate 1 .

As shown in Figure 7: the hole positioning clip 13 of the rear end face of the square tube support seat is provided near the rear foot plate positioning block 2. A positioning pin 13b, the positioning pin 13b is fixedly inserted on the rotating arm 13a.

As shown in FIGS. 1 and 3 , upper cylinders 14 are distributed directly below the positions of the rear transverse tube and the square tube support seat.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those of ordinary skill in the art can make a variety of similar implementations under the inspiration of the present invention without violating the purpose and claims of the present invention. It means that such transformations all fall within the protection scope of the present invention.

Claims (9)

1. A six-point seat support frame assembly welding fixture is characterized in that: it includes a base plate (1) for placing each part of the seat support frame, and the base plate (1) is provided with two rear foot plates corresponding to the rear side Two rear foot plate positioning blocks (2) and two front foot plate positioning blocks (3) provided with the two front foot plates on the front side, the two front foot plate positioning blocks (3) are symmetrically arranged, and the front foot plate positioning blocks on the same side (3) and the rear foot plate positioning block (2) are all provided with a support block (4) for positioning the square tube support seat, and are provided with a backrest mounting seat positioning mechanism (5) near the outside of the rear foot plate positioning block (2). ), the positioning mechanism (5) of the backrest mounting seat is provided with a horizontal tube positioning block (6) that compresses the front horizontal tube and the rear horizontal tube, and the front horizontal tube and the rear horizontal tube are provided with a The hole positioning mechanism (7) with intermediate mounting parts is provided with a connecting frame positioning block (8) near the front foot plate positioning block (3) and is located on the inner side of the square tube support seat, corresponding to the front foot plate positioning block (3 ), the rear foot plate positioning block (2) and the horizontal tube positioning block (6) are all provided with the first pressing mechanism (9), and the outer sides of the two described square tube support seats correspond to the corresponding connecting frame positioning blocks (8 ) are provided with a second compression mechanism (10) that compresses the fixed portion of the connection frame, and two third compression mechanisms (11) that compress the output end of the connection frame are provided between the two described connection frame positioning blocks (8). ). 2. The welding jig for the six-point seat support frame assembly according to claim 1, characterized in that: the positioning mechanism (5) of the backrest mounting seat includes a lateral push device (5a), which is installed on the lateral push device (5a) Push the fixed seat (5b) at the end of the shaft, the hole positioning post (5c) and the abutment block (5d) installed on the fixed seat (5b). 3. The welding fixture for the six-point seat support frame assembly according to claim 2, characterized in that: a limit block (12) is provided corresponding to the lateral pushing device (5a), and the lateral pushing device (5a) It is a three-axis cylinder installed horizontally. 4. The six-point seat support frame assembly welding fixture according to claim 1, characterized in that: the first pressing mechanism (9), the second pressing mechanism (10) and the third pressing mechanism ( 11) Both comprise a vertically arranged push cylinder (9a), a lever-type horizontal pressing arm (9b), a support frame (9c), one end of the horizontal pressing arm (9b) is a pressing end, and the other end is connected to the pushing cylinder ( The outer end of the telescopic shaft of 9a) is hinged, and the middle part of the transverse pressing arm (9b) is hinged with a fixed support frame (9c) as a supporting point. 5. The welding fixture for the six-point seat support frame assembly according to claim 4, characterized in that: the two third pressing mechanisms (11) are all installed on the same padding frame (11a), and the padding frame (11a) is fixedly installed on the bottom plate (1). 6. The welding fixture for the six-point seat support frame assembly according to claim 1, characterized in that: the hole positioning mechanism (7) includes a hole positioning seat (7a) and a hole positioning cylinder (7b), and the hole positioning The positioning cylinder (7b) laterally butts against the seat belt middle mounting part. 7. The welding fixture for the six-point seat support frame assembly according to claim 1, characterized in that: the hole positioning clips (13) on the rear end surface of the square tube support seat are all provided near the rear foot plate positioning block (2) , the hole positioning clip (13) includes a rotating arm (13a) and a positioning pin (13b) set corresponding to the position of the rear end face of the square tube support seat, and the positioning pin (13b) is fixedly inserted into the rotating arm (13a) superior. 8. The welding jig for the six-point seat support frame assembly according to claim 1, characterized in that: the tops of the support block (4) and the horizontal tube positioning block (6) are in the shape of an upward "U" Bit mouth. 9. The welding jig for the six-point seat support frame assembly according to claim 8, characterized in that: upper cylinders (14) are distributed directly below the positions of the rear transverse tube and square tube support seats.