CN108080859B - Six points of seat back-rest framework solution lock box mounting bracket welding fixtures - Google Patents

Abstract

The invention discloses a six-point seat back frame unlocking box mounting bracket welding fixture, comprising a base, a first positioning piece, a second positioning piece and a third positioning piece. The first positioning piece is evenly distributed along the square frame and is connected with the base Fixed connection, the third positioning member includes a first guide rail, a first pneumatic slider and a positioning clamp block, the first pneumatic slider is slidably arranged against the unlocking box mounting bracket, and the first pneumatic slider is facing the side of the unlocking box mounting bracket upwards There is a vertical mounting block, the mounting block is fixed with a positioning block, the positioning end face of the positioning block is provided with positioning protrusions and two hole positioning pins, the positioning clamp block is located on the inner side of the unlocking box mounting bracket, and the positioning block will unlock the box. The mounting bracket is pushed toward the positioning clamp block and abutted and fixed. The invention is a six-point seat back frame unlocking box mounting bracket welding fixture, which effectively solves the problem of positioning and fixing the unlocking box mounting bracket, and at the same time ensures the accuracy and stability of positioning.

Description

Six-point seat back frame unlocking box mounting bracket welding jig

technical field

The invention belongs to the technical field of seat back welding, and in particular relates to a six-point seat back frame unlocking box mounting bracket welding fixture.

Background technique

The six-point seat back frame is shown in Figures 1 and 3: including the square frame, the right bracket plate, the unlocking box mounting bracket, and the armrest mounting plate, but in the six-point seat back frame, the positioning and fixed position of the unlocking box mounting bracket The design of the fixture increases the difficulty. The unlocking box mounting bracket is bent at 90 degrees. One section needs to be welded and fixed, and the other section is not connected. In order to make way for the welding station during welding, the section that needs to be welded cannot have any fixed support. The remaining section is positioned and fixed, and the unlocking box mounting bracket is relatively close to the right bracket plate on the right side of the square frame, so the design space of the fixture is more demanding. The sleeve can effectively clamp the unlocking box mounting bracket, while positioning the clamp accurately and firmly.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the purpose of the present invention is to provide a six-point seat back frame unlocking box mounting bracket welding fixture, which effectively solves the problem of positioning and fixing the unlocking box mounting bracket, while ensuring the accuracy and stability of positioning.

The purpose of the present invention is to achieve this: a six-point seat back frame unlocking box mounting bracket welding fixture, the key of which is: including a base, a first positioning member for supporting and positioning the square frame, and a headrest tube on the square frame. The second positioning member for positioning and the third positioning member for positioning and supporting the unlocking box mounting bracket, the first positioning member is evenly distributed along the square frame and is fixedly connected to the base, and the second positioning member corresponds to the distribution of the headrest tube On the upper part of the base, the third positioning member is disposed facing the unlocking box mounting bracket on the upper end of the right bracket plate, and the third positioning member includes a first guide rail, a first guide rail slidably mounted on the first guide rail. Pneumatic sliding block and positioning clamp block, the first pneumatic sliding block is slidably arranged facing the unlocking box mounting bracket, the first pneumatic sliding block is provided with a vertical mounting block upward toward the side of the unlocking box mounting bracket, the A positioning block is fixed on the mounting block, and the positioning end face of the positioning block is provided with a positioning protrusion and two hole positioning pins, the hole positioning pins are located below the positioning protrusions and unlock the mounting holes of the box mounting bracket. For positioning, the positioning protrusion positions the middle opening of the unlocking box mounting bracket, the positioning clip block is located on the inner side of the unlocking box mounting bracket, and the positioning block pushes the unlocking box mounting bracket to the positioning clip block and abuts and fixes it. .

With the above structure, the square frame is preliminarily positioned and fixed by the first positioning member, and the headrest tube is synchronously inserted and positioned through the second positioning member. At the same time, the first pneumatic slider is pushed and slid down by the cylinder to the unlocking box mounting bracket, and the positioning protrusion is Position the opening in its middle, locate the mounting hole with the hole positioning pin, and then abut and fix the unlocking box mounting bracket through the positioning clamp block, and the welding section of the unlocking box mounting bracket is in close contact with the right bracket plate, so as to realize the unlocking box mounting bracket fixed position.

Preferably, a hole positioning seat is fixed on the left part of the base corresponding to the armrest mounting plate, and a positioning column is arranged on the top of the hole positioning seat, and the positioning column is used for positioning the mounting hole of the armrest mounting plate.

Preferably, the ends of the first pneumatic slider and the positioning plug are provided with corresponding limit blocks for limiting the stroke of the slider.

Preferably, a cylinder is fixedly installed on the right side of the first pneumatic slider, and the installation block extends to the right and is fixedly connected with the cylinder telescopic shaft. The cylinder makes room for welding.

Preferably, the first positioning member includes a support block and a pneumatic pressure block, the support blocks are evenly distributed directly below the square frame and fixed with the base, and the pneumatic pressure block presses the square frame from top to bottom . With the above structure, the support block can evenly push up the square frame, and the pneumatic pressure block can be pressed downward synchronously under the push of the cylinder.

Preferably, the above-mentioned second positioning member includes a second guide rail, a second pneumatic slider and a positioning pin horizontally disposed opposite to the headrest tube, the second pneumatic slider is slidably installed on the second guide rail, and the front end of the positioning pin is It points to the headrest tube, and the rear end is fixedly connected with the second pneumatic slider.

Preferably, a top cylinder is provided on the base corresponding to the square frame. With the above structure, the welded frame is pushed out by the upper lift cylinder, so that the frame can be easily taken out.

Beneficial effects:

The invention is a six-point seat back frame unlocking box mounting bracket welding fixture, which effectively solves the problem of positioning and fixing the unlocking box mounting bracket, and at the same time ensures the accuracy and stability of positioning.

Description of drawings

Fig. 1 is the assembly schematic diagram of the present invention and skeleton assembly;

Figure 2 is a perspective view of the present invention assembled with the skeleton assembly;

Figure 3 is a perspective view of the skeleton assembly in Figure 1;

4 is a perspective view of the present invention;

5 is a perspective view of the second positioning member in FIG. 1;

Fig. 6 is the perspective view of the third positioning member in Fig. 1;

1 is the base, 2a is the support block, 2b is the pneumatic pressure block, 3 is the second positioning piece, 3a is the second guide rail, 3b is the second pneumatic slider, 3c is the positioning pin, 4 is the third positioning piece, 4a is the first guide rail, 4b is the first pneumatic slider, 4c is the positioning clamp, 41 is the mounting block, 42 is the positioning block, 43 is the positioning protrusion, 44 is the hole positioning pin, 5 is the hole positioning seat, and 6 is the upper Top cylinder, 7 is a square frame, 8 is a right bracket plate, 9 is a headrest tube, 10 is an unlocking box mounting bracket, 11 is an armrest mounting plate, and 12 is a limit stop.

Detailed ways

The present invention will be further described below with reference to the embodiments and accompanying drawings.

Example:

As shown in Figures 1, 2 and 4: a six-point seat back frame unlocking box mounting bracket welding fixture, which consists of a base 1, a first positioning member for supporting and positioning the square frame, and positioning the headrest tube on the square frame. The second positioning member 3, and the third positioning member 4 for positioning and supporting the unlocking box mounting bracket, the first positioning member is evenly distributed along the square frame and is fixedly connected with the base 1, and the second positioning member 3 corresponds to The headrest tubes are distributed on the upper part of the base 1 , and the third positioning member 4 is disposed facing the unlocking box mounting bracket at the upper end of the right bracket plate.

As shown in Figures 1 and 2 and 4: the first positioning member is composed of a support block 2a and a pneumatic pressure block 2b, the support blocks 2a are evenly distributed under the square frame and fixed with the base 1, The pneumatic pressing block 2b presses the square frame from top to bottom.

As shown in Figures 1 and 5: the second positioning member 3 is composed of a second guide rail 3a, a second pneumatic slider 3b and a positioning pin 3c horizontally disposed opposite the headrest tube. The second pneumatic slider 3b is slidably installed on the On the second guide rail 3a, the front end of the positioning pin 3c points to the headrest tube, and the rear end is fixedly connected with the second pneumatic slider 3b.

As shown in Figures 1 and 6: the third positioning member 4 is composed of a first guide rail 4a, a first pneumatic slider 4b and a positioning clamp block 4c slidably mounted on the first guide rail 4a. The slider 4b is slidably arranged facing the unlocking box mounting bracket, the first pneumatic slider 4b is provided with a vertical mounting block 41 on the side facing the unlocking box mounting bracket, and a positioning block 42 is fixed on the mounting block 41 , the positioning end surface of the positioning block 42 is provided with a positioning protrusion 43 and two hole positioning pins 44, the hole positioning pins 44 are located below the positioning protrusion 43 and locate the mounting holes of the unlocking box mounting bracket, The positioning protrusion 43 positions the middle opening of the unlocking box mounting bracket, the positioning clip 4c is located inside the unlocking box mounting bracket, and the positioning block 42 pushes the unlocking box mounting bracket to the positioning clip 4c and abuts against it fixed.

As shown in FIG. 1 , a hole positioning seat 5 is fixed on the left part of the base 1 corresponding to the armrest mounting plate. The top of the hole positioning seat 5 is provided with a positioning column, and the positioning column locates the mounting hole of the armrest mounting plate. The inner ends of the first pneumatic slider 4b and the second pneumatic slider 3b are respectively provided with limit blocks 12 that limit the stroke of the sliders. A cylinder is fixedly installed on the right side of the first pneumatic slider 4b, and the installation block 41 extends to the right and is fixedly connected with the cylinder telescopic shaft. A top cylinder 6 is provided on the base 1 corresponding to the square frame.

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 It is indicated that such transformations fall within the protection scope of the present invention.

Claims (7)

1. A six-point seat back frame unlocking box mounting bracket welding fixture, characterized in that it comprises a base (1), a first positioning member for supporting and positioning the square frame, and a first positioning member for positioning the headrest tube on the square frame. Two positioning members (3), a third positioning member (4) for positioning and supporting the unlocking box mounting bracket, the first positioning members are evenly distributed along the square frame and are fixedly connected to the base (1), the second positioning member The parts (3) are distributed on the upper part of the base (1) corresponding to the headrest tube; ) comprising a first guide rail (4a), a first pneumatic slider (4b) and a positioning clamp block (4c) slidably mounted on the first guide rail (4a), the first pneumatic slider (4b) facing each other The unlocking box mounting bracket is slidably arranged, a vertical mounting block (41) is provided on the side of the first pneumatic slider (4b) facing the unlocking box mounting bracket, and a positioning block is fixed on the mounting block (41). (42), a positioning protrusion (43) and two hole positioning pins (44) are provided on the positioning end surface of the positioning block (42), and the hole positioning pins (44) are located at the edge of the positioning protrusion (43). Below, the mounting holes of the unlocking box mounting bracket are positioned, the positioning protrusion (43) positions the middle opening of the unlocking box mounting bracket, the positioning clamp block (4c) is located on the inner side of the unlocking box mounting bracket, the The positioning block (42) pushes the unlocking box mounting bracket to the positioning clamp block (4c) and abuts and fixes it. 2. The six-point seat back frame unlocking box mounting bracket welding fixture according to claim 1, characterized in that: a hole positioning seat (5) is fixed on the left part of the base (1) corresponding to the armrest mounting plate, and the hole The top of the positioning seat (5) is provided with a positioning column, and the positioning column locates the mounting hole of the handrail mounting plate. 3. The six-point seat back frame unlocking box mounting bracket welding fixture according to claim 1, characterized in that: the right side of the first pneumatic slider (4b) is fixedly mounted with a cylinder, and the mounting block (41) It extends to the right and is fixedly connected with the cylinder telescopic shaft. 4. The six-point seat back frame unlocking box mounting bracket welding fixture according to claim 1, wherein the first positioning member comprises a support block (2a) and a pneumatic pressure block (2b), and the support block (2a) are evenly distributed directly below the square frame and fixed with the base (1), and the pneumatic pressing block (2b) presses the square frame from top to bottom. 5. The six-point seat back frame unlocking box mounting bracket welding fixture according to claim 1, wherein the second positioning member (3) comprises a second guide rail (3a), a second pneumatic slider (3b) ) and a horizontal positioning pin (3c) facing the headrest tube, the second pneumatic slider (3b) is slidably mounted on the second guide rail (3a), and the front end of the positioning pin (3c) points to the headrest tube, The rear end is fixedly connected with the second pneumatic slider (3b). 6. The six-point seat back frame unlocking box mounting bracket welding fixture according to claim 5, characterized in that: the ends of the first pneumatic slider (4b) and the positioning pin (3c) are correspondingly provided with restrictions Limit stop (12) for slider travel. 7 . The six-point seat back frame unlocking box mounting bracket welding fixture according to claim 1 , wherein the base ( 1 ) is provided with an upper cylinder ( 6 ) corresponding to the square frame. 8 .