Automobile seat steel pipe framework alignment installation device

Abstract

The utility model belongs to the technical field of automobile production auxiliary equipment, and relates to a seat steel pipe framework alignment installation device for vehicles, which comprises an air compressor, a PLC, a rack, a supporting plate, a limiting mechanism, a rotary pressing cylinder, a positioning seat and a pulling mechanism, wherein the rack, the supporting plate, the limiting mechanism, the rotary pressing cylinder, the positioning seat and the pulling mechanism are installed together. The utility model can be used in cooperation with an automatic pipe bending machine device. An automatic robot can grasp the bent H-shaped steel pipe to the front side end of the supporting plate and fix it, complete the process of sleeving one end of the pipe necking into the other end of the pipe, or a human can place the H-shaped steel pipe on the front side end of the supporting plate and fix it automatically, and complete the process of sleeving one end of the pipe necking into the other end of the pipe. In the whole process, the staff does not need to fix or loosen the pipe manually or sleeve the other end of the pipe into the outside of the necking end, which brings convenience to the staff, reduces the labor intensity and improves the work efficiency. Therefore, the utility model has a good application prospect.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment for vehicle production, and in particular to a steel tube frame alignment and installation device for vehicle seats. Background Technology

[0002] To ensure strength and quality, the frames of car seat backs and seats are generally made of steel tubing. Existing car seat back and seat frames are typically manufactured using automatic tube bending machines. The automatic tube bending machine structure includes a feeding and lifting mechanism, a tube bending mechanism, a necking and oiling machine, a unloading trolley mechanism, and an automatic robotic gripper. The specific workflow is as follows: (1) The staff will place the pre-cut materials and a certain length of straight steel pipes at the feeding and lifting mechanism. During the operation, under the control of PLC, the automatic robot gripper will grab one steel pipe at a time and place it at the shrinking and oiling machine. The shrinking and oiling machine will apply oil to one end of the steel pipe (mainly to reduce the friction between the pipe and the shrinking tool, reduce the temperature generated by shrinking, protect the shrinking mold, and improve the accuracy and surface quality of the pipe after shrinking). Then, the oiled end of the steel pipe will be shrunk so that the outer diameter of one end of the steel pipe is smaller than the outer diameter of the other end (then one end of the steel pipe will be inserted into the other end and welded); (2) The automatic robot gripper will place the oiled and shrunk steel pipe at the bending mechanism. The bending mechanism will complete the U-shape of the steel pipe. Then, the automatic robot gripper will place the bent steel pipe skeleton in the unloading trolley mechanism. The staff will then transfer the bent steel pipes to the next shaping and welding mechanism for further processing through the unloading trolley. Because the automatic pipe bending machine can automatically complete the processes of oiling, pipe shrinking, bending, and unloading, it greatly improves work efficiency and reduces production costs accordingly.

[0003] Although existing automatic pipe bending machines meet production needs to some extent, they still have the following technical shortcomings that urgently need improvement due to structural limitations. Specifically, after the bending mechanism bends the straight steel pipe into a U-shape, the constricted end of the pipe is misaligned with the other end (the other end of the pipe is located to the right of the constricted end). The constricted end is not inside the other end, meaning that another process is needed to insert the constricted end of the pipe into the other end. Currently, the method of inserting the constricted end of the pipe into the other end is usually that the worker manually places the U-shaped steel pipe into a special clamp, then operates the operating lever of the clamp to reduce the distance between the two clamping blocks, thus placing the other end of the pipe outside the constricted end. After the pipe is connected, the worker reverses the operation of the clamp to loosen the clamping blocks, removing the pipe from the clamp and completing the entire process. The above method requires staff to manually operate the fixture throughout the entire process, which not only causes inconvenience to the staff and increases their labor intensity, but also does not help to improve the production capacity per unit time. Utility Model Content

[0004] To overcome the drawbacks of existing automatic pipe bending machines, which require manual operation to connect the constricted end of the steel pipe to the other end, as described in the background art, this utility model provides a vehicle seat steel pipe frame alignment and installation device that can be used in conjunction with an automatic pipe bending machine or independently. After the automatic pipe bending machine bends the U-shaped steel pipe and places it at the work station, the relevant equipment can automatically fix the steel pipe and fit the other end of the steel pipe onto the outside of the constricted end. This brings convenience to the workers, reduces labor intensity, and improves work efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A vehicle seat steel tube frame alignment and installation device includes an air compressor, a PLC, a frame, a support plate, a limiting mechanism, a rotary clamping cylinder, a positioning seat, and a pulling mechanism. The rear end of the support plate is fixedly installed on the upper end of the frame. The limiting mechanism includes a cylinder and a stop plate. The upper end of the stop plate is fixedly installed on the lower end of the piston rod of the cylinder. The rear end of the cylinder body of the limiting mechanism is fixedly installed on the upper front end of the support plate. A fixing seat is horizontally fixedly installed on the lower end of the stop plate, and the lower part of the fixing seat has a limiting groove horizontally. There are multiple sets of rotary clamping cylinders, each set of which rotates and clamps... A retaining seat is fixedly installed on the front end of the cylinder's pressure plate. The retaining seat has a limiting groove A at its rear end. The cylinder bodies of multiple sets of rotary clamping cylinders are fixedly installed on the left, lower, and upper front ends of the support plate, respectively. There are multiple positioning seats, each with a limiting groove B at its front end. The rear ends of the multiple positioning seats are fixedly installed on the left and lower front ends of the support plate, respectively. The pulling mechanism includes a cylinder A and a pulling seat. One side of the pulling seat has a pulling groove, and the other side of the pulling seat is fixedly installed together with the piston rod of the cylinder A. The cylinder A is fixedly installed in the front middle of the support plate.

[0007] Furthermore, the upper end of the frame and the support plate are inclined structures.

[0008] Furthermore, a limiting seat is fixedly installed on the lower right side of the front side of the support plate.

[0009] Furthermore, the inner diameter of the limiting groove, limiting groove A, and limiting groove B is greater than the radius of the steel pipe, and the width of the pulling groove is greater than the outer diameter of the steel pipe.

[0010] Furthermore, the rear ends of the limiting grooves B of the multiple positioning seats are on the same plane.

[0011] Compared with existing technologies, the advantages of this invention are as follows: This invention can be used in conjunction with an automatic pipe bending machine. An automatic robot picks up the bent U-shaped steel pipe and fixes it to the front end of a support plate, completing the process of inserting the narrowed end of the pipe into the other end. Alternatively, the U-shaped steel pipe can be manually placed on the front end of the support plate and automatically fixed, completing the process of inserting the narrowed end into the other end. Since the entire process does not require manual fixing or loosening of the steel pipe or inserting the other end into the narrowed end, it provides convenience for workers, reduces labor intensity, and improves work efficiency. In summary, this invention has good application prospects. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a structural diagram of the present invention and the automatic pipe bending machine device. Detailed Implementation

[0015] Figure 1 , 2As shown, the vehicle seat steel tube frame alignment and installation device includes an air compressor (not shown in the figure), a PLC (not shown in the figure), a frame 1, a support plate 2, a limiting mechanism 3, a rotary clamping cylinder 4, a positioning seat 5, and a pulling mechanism; the rear end of the support plate 2 is fixedly installed on the upper end of the frame 1; there are two sets of limiting mechanisms 3, each set including a cylinder 31 and a stop plate 32, the upper end of the stop plate 32 is fixedly installed on the lower end of the piston rod of the cylinder 31, and the rear ends of the cylinders 31 of the two sets of limiting mechanisms are vertically distributed with a left-right interval. The front sides of the “˥”-shaped seat body are fixedly installed on both sides of the upper end of the support plate 2. A fixed seat 33 is horizontally fixedly installed on the front side of the abutment plate of the left set of limiting mechanisms. The lower middle part of the fixed seat 33 has a semi-circular limiting groove 331. The rear end of the limiting groove 331 of the left set of limiting mechanisms and the lower side of the top plate 32 of the right set of limiting mechanisms are horizontally aligned. There are four sets of rotary pressing cylinders 4. A card seat 41 is fixedly installed on the front side of the pressure plate of each set of rotary pressing cylinders 4. The lower front side of the card seat 41 has a semi-circular groove 331. The limiting groove A411 is provided, in which the cylinder bodies of two sets of rotary clamping cylinders 4 are horizontally fixedly installed at a vertical distance from each other on the left front end of the support plate 2. The cylinder bodies of the third set of rotary clamping cylinders 4 and the fourth set of rotary clamping cylinders 4 are vertically distributed and fixedly installed on the middle of the upper and lower sides of the front end of the support plate 2. The size of the retaining seat 42 of the third set of rotary clamping cylinders is larger than the size of the retaining seat 41 of the first set of rotary clamping cylinders 4, the second set of rotary clamping cylinders 4, and the fourth set of rotary clamping cylinders 4. There are five positioning seats 5, each positioning seat 5 having a front end... The side end has a limiting groove B51 in the middle. Three positioning seats 5 are fixedly installed on the left front side of the support plate 2 at a certain distance from each other on the rear side. The fourth and fifth positioning seats 5 are fixedly installed on the lower front side of the support plate 2 at a certain distance from each other on the rear side. The pulling mechanism includes a cylinder 61 and a pulling seat 62. A pulling groove 621 is vertically distributed on one side end of the pulling seat 62. The left side end of the pulling seat and the right side of the piston rod of the cylinder 61 are fixedly installed together. The cylinder body of the cylinder 61 is horizontally distributed and fixedly installed in the front middle of the support plate.

[0016] Figure 1 , 2As shown, the upper ends of the frame 1 and support plate 2 are inclined structures (upper end towards the rear, front end towards the front). A limit seat 7 is fixedly installed on the lower right side of the front side of the support plate. The cylinders of the pulling mechanism and limit mechanism 3, the two intake and exhaust solenoid valves of the four sets of rotary clamping cylinders 4, and the exhaust pipe of the compressed air tank are connected in parallel via pipelines. The power input terminals of the cylinders of the pulling mechanism and limit mechanism, the two intake and exhaust solenoid valves of the four sets of rotary clamping cylinders 4, and the multi-channel power output terminals of the PLC are connected by wires. The inner diameters of the limit grooves 331, A411, and B51 are slightly larger than the radius of the steel pipe 7, and the width of the pulling groove 621 is larger than the outer diameter of the steel pipe 14. The rear end of the pulling groove 621 of the pulling seat and the rear end of the limit grooves B51 of the five positioning seats are on the same plane.

[0017] Figure 1 , 2As shown, this new invention can be used in conjunction with an automatic pipe bending machine (13 being this invention). An automatic robot picks up the bent U-shaped steel pipe 14 and fixes it to the front end of the support plate, completing the process of inserting one end of the pipe's constricted end into the other end. Alternatively, the U-shaped steel pipe can be manually placed on the front end of the support plate and automatically fixed, completing the process of inserting one end of the pipe's constricted end into the other end. The following description of the working principle uses the automatic robot picking up the bent U-shaped steel pipe and fixing it to the front end of the support plate to complete the process of inserting one end of the pipe's constricted end into the other end as a representative example. Specifically, this invention 13 is installed between the loading and lifting mechanism 8 and the unloading trolley 12 of the automatic pipe bending machine. This invention uses PLC control of the automatic pipe bending machine. The specific process when used in conjunction with the automatic pipe bending machine is as follows. (1) The staff places multiple straight steel pipes of a certain length that have been pre-cut into material at the feeding and lifting mechanism 8. Under the control of PLC, the automatic robot gripper 11 picks up one steel pipe at a time and places it at the shrinking and oiling machine 9. The shrinking and oiling machine 9 applies oil to one end of the steel pipe (mainly to reduce friction between the pipe and the shrinking tool, reduce the temperature generated by shrinking, protect the shrinking mold, and improve the accuracy and surface quality of the pipe after shrinking). Then, the oiled end of the steel pipe is shrunk so that the outer diameter of one end of the steel pipe is smaller than the outer diameter of the other end (then one end of the steel pipe is inserted into the other end and welded); (2) Automatic robot The gripper 11 places the oiled and narrowed steel pipe at the bending mechanism 10. The bending mechanism 10 completes the steel pipe into a U-shape. Then, the automatic robot gripper 11 places the bent steel pipe skeleton at the front of the new type of support plate 2. At this time, the left and lower ends and the right end of the rear end of the U-shaped steel pipe 14 are respectively located in the limiting grooves B51 of the three positioning seats on the left end and the front end of the limiting grooves B51 of the two positioning seats on the lower end. The lower inner side of its right side is located on the right side of the limiting seat at the lower right end of the front side of the support plate. The distance between the upper narrowed end position 141 of the U-shaped steel pipe 14 and the other end of the steel pipe is (the upper right end of the steel pipe is located in the pulling groove 621 and the upper end is located at the lower end of the top plate).(3) The PLC controls the operation of four sets of rotary clamping cylinders. The pressure plate drives the clamping seat to rotate 180 degrees. The pressure plate and clamping seat 41 of the two sets of rotary clamping cylinders on the left end are horizontally located at the upper and lower parts of the front left end of the steel pipe. Then the pressure plate and clamping seat 41 move backward a distance to clamp the front left end of the steel pipe 14. The pressure plate and clamping seat 41 of the two sets of rotary clamping cylinders on the upper and lower ends are vertically located at the upper and lower parts of the front middle of the steel pipe. Then the pressure plate and clamping seat 41 move backward a distance to clamp the upper and lower parts of the front middle of the steel pipe 14. The PLC controls the operation of the cylinders of the two sets of limiting mechanisms. The piston rod drives the abutment plate 32 to move down a distance and presses against the upper end of the steel pipe. At this time, the constricted end of the U-shaped steel pipe 14 and the other end are horizontally in a straight line. The PLC controls the operation of the cylinder 61. The piston rod drives the right end of the U-shaped steel pipe 14 to move to the left a distance through the pulling groove 621 of the pulling seat 62. The distance is such that one end of the constricted end 141 at the top of the U-shaped steel pipe 14 will be inserted into the other end, completing the connection process of the steel pipe 14; the PLC controls the four sets of rotary clamping cylinders to work, and their pressure plates and clamping seats 41 move forward a certain distance, no longer clamping the front end of the steel pipe 14, and controls the two sets of rotary clamping cylinders at the left end to drive the clamping seats to rotate 180 degrees, and laterally position them on the left side of the support plate, and controls the two sets of rotary clamping cylinders at the top and bottom ends to drive the clamping seats to rotate 180 degrees, and laterally position them on the upper and lower sides of the support plate respectively; the PLC controls the cylinder 61 to work, and its piston rod drives the pulling seat 62 to move to the right a certain distance, so that the U-shaped steel pipe 14 is located in the middle of the pulling seat and does not contact the two sides inside the pulling seat; the PLC controls the cylinders of the two limiting mechanisms to work, and their piston rods drive the abutment plate 32 to move upward a certain distance, no longer pressing against the upper end of the steel pipe for limiting. (4) After the PLC-controlled rotary clamping cylinder's mounting base, the pulling mechanism's pulling seat, and the U-shaped steel pipe are separated, the PLC-controlled robot handle 11 places the processed U-shaped steel pipe 14 into the unloading trolley mechanism 12. The workers then use the unloading trolley 12 to transfer the bent steel pipes 14 to the next seat production process. This new design eliminates the need for workers to manually fix or loosen the steel pipe or insert the other end of the pipe into the outside of the constricted end, thus providing convenience, reducing labor intensity, and improving work efficiency. It should be noted that the rotary clamping cylinder and cylinder, PLC, air compressor, robot handpiece, etc. used in this application are all mature technologies. This application does not protect the structure and function of the above-mentioned devices, nor does it elaborate on their working principle. This application protects the rotary clamping cylinder and cylinder, PLC, air compressor, robot handpiece working together to automatically insert one end of the U-shaped steel pipe 14 into the other end without manual operation (even if manual operation is required, this application only requires placing the steel pipe in front of the support plate or removing it from the support plate. It does not require the staff to fix, loosen, or insert the steel pipe manually, so it can still bring convenience to the staff and reduce labor intensity).

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0019] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle seat steel tube frame alignment and installation device, comprising an air compressor, a PLC, a frame, a support plate, a limiting mechanism, a rotary clamping cylinder, a positioning seat, and a pulling mechanism; characterized in that, The rear end of the support plate is fixedly installed on the upper end of the frame; the limiting mechanism includes a cylinder and a stop plate, the upper end of the stop plate is fixedly installed on the lower end of the piston rod of the cylinder, the rear end of the cylinder body of the limiting mechanism is fixedly installed on the upper front end of the support plate, and a fixed seat is horizontally fixedly installed on the lower end of the stop plate, with a limiting groove at the lower part of the fixed seat; there are multiple sets of rotary pressing cylinders, and a card seat is fixedly installed on the front end of the pressure plate of each set of rotary pressing cylinders, with a limiting groove A at the rear end of the front side of the card seat, and the cylinder bodies of the multiple sets of rotary pressing cylinders are respectively fixedly installed on the left side, the lower side, and the upper front end of the support plate; there are multiple positioning seats, and each positioning seat has a limiting groove B on the front end, with the rear sides of the multiple positioning seats respectively fixedly installed on the left side and the lower front end of the support plate; the pulling mechanism includes a cylinder A and a pulling seat, one side of the pulling seat has a pulling groove, and the other side of the pulling seat is fixedly installed together with the piston rod of the cylinder A, and the cylinder A is fixedly installed in the middle front part of the support plate.

2. The vehicle seat steel tube frame alignment and installation device according to claim 1, characterized in that, The upper part of the frame and the support plate are inclined structures.

3. The vehicle seat steel tube frame alignment and installation device according to claim 1, characterized in that, A limit seat is fixedly installed on the lower right side of the support plate.

4. The vehicle seat steel tube frame alignment and installation device according to claim 1, characterized in that, The inner diameters of the limiting groove, limiting groove A, and limiting groove B are greater than the radius of the steel pipe, and the width of the pulling groove is greater than the outer diameter of the steel pipe.

5. The vehicle seat steel tube frame alignment and installation device according to claim 1, characterized in that, The rear ends of the limiting grooves B of multiple positioning seats are on the same plane.

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