Positioning tool for automobile seat backrest

Abstract

The utility model belongs to the field of automobile seat tools, and particularly relates to an automobile seat backrest positioning tool which comprises a bottom plate layer, a rotary positioning layer and a foaming quick-changing layer, the rotary positioning layer comprises a rotating mechanism and a positioning mechanism, the rotating mechanism is located on the bottom plate layer, the positioning mechanism is located on one side of the rotating mechanism, and the foaming quick-changing layer is located on the positioning mechanism. The foaming quick-change layer is located on the other side of the upper surface of the rotating mechanism, the positioning mechanism comprises a lifting mechanism, a positioning block and a positioning pin, a second flat plate is arranged on the top surface of the positioning mechanism, and a hollow part matched with the positioning block and the positioning pin is arranged on the second flat plate; the lifting mechanism is lifted to enable the positioning block and the positioning pin to move up and down on the surface of the second flat plate to achieve hiding and protruding, and the bottom of the positioning mechanism is rotated to achieve rotation. Through the arrangement of the foaming quick-change layer and the rotary positioning layer, foaming positioning of the rear-row seat and secondary positioning of the foaming piece are achieved, so that face cover assembly is completed, and the automatic process of the foaming face cover is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of automobile seat tooling, and in particular relates to a tooling for positioning an automobile seat backrest. Background Art

[0002] In the existing automobile seat manufacturing industry, there is an increasing pursuit of intelligent production lines. The rear seat backs of automobiles often need to be foamed first and then moved to another workstation to complete the surface assembly. At present, there is no set of positioning tooling to realize the foaming and surface assembly of the seat backs. The production process time of the rear seat backs is lengthened, which greatly reduces the production efficiency of the rear seat backs. Utility Model Content

[0003] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a tool for positioning the car seat back. By setting a foam quick-change layer and a rotation positioning layer, the foam positioning of the rear seat and the secondary positioning of the foam parts are realized, so as to complete the assembly of the cover and realize the automation process of the foam cover.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool for positioning a car seat back, comprising a bottom plate layer, a rotation positioning layer and a foam quick-change layer, the rotation positioning layer comprising a rotation mechanism and a positioning mechanism, the rotation mechanism is located on the bottom plate layer, the positioning mechanism is located on one side above the rotation mechanism, and the foam quick-change layer is located on the other side above the rotation mechanism, the positioning mechanism comprises a lifting mechanism, a positioning block and a positioning pin, a second flat plate is provided on the top surface of the positioning mechanism, a hollow portion is provided on the second flat plate that is adapted to the positioning block and the positioning pin, the lifting mechanism is lifted so that the positioning block and the positioning pin move up and down on the surface of the second flat plate to achieve hiding and protrusion, and the bottom of the rotating positioning mechanism is rotated to achieve rotation.

[0005] Furthermore, the bottom plate layer is provided with a bottom plate, and the rotating mechanism includes a bearing synchronization plate, a bearing, a hook spring, a movable rod, a movable bearing, a support block, a fixed pin, a connecting head, a splint and a rotating plate. The bottom of the bearing is fixed on the bottom plate and the top is rotatably connected to the bottom surface of the rotating plate. The bearing synchronization plate is connected to the outer periphery of the bearing. Four notches are evenly opened on the bearing synchronization plate. One end of the hook spring is connected to the connecting head and the other end is connected to one end of the movable rod. The other end of the movable rod is fixed to the bottom plate by a fixed pin, and the connecting head is fixed to the bottom plate. The middle of the movable rod is fixed by one end of the two splints. The other ends of the two splints are located in the notch and are connected to the movable bearing in the middle. The end of the movable rod close to the hook spring is in contact with the support block below.

[0006] Furthermore, the lifting mechanism includes a connecting rod, a sliding rail, a support arm, a sliding bearing, a linear guide rail, a slider, an ascending rod and a descending rod. The sliding rail is fixedly connected to one end and the middle of the other side between the two connecting rods. The side of one end of the two connecting rods is fixedly connected to the descending rod, and the other end is connected to the ascending rod. A linear guide rail is provided at the bottom of the two sliding rails, and the linear guide rail is fixed on one side of the rotating plate. A slider is fixed at the bottom of the two sliding rails and the slider slides on the linear guide rail. Four support arms and sliding bearings are provided. The sliding bearings are connected to the bottom of the support arm, and the support arm moves along the sliding rail through the sliding bearings.

[0007] Furthermore, one side of the sliding track is an H-shaped inclined surface, and grooves are provided in the middle of both sides of the top surface.

[0008] Furthermore, linear lifting shafts are provided on the four corners of the lifting mechanism. The bottoms of the four linear lifting shafts are fixed on the rotating plate and the upper part is connected to a first flat plate. The first flat plate moves up and down within a limited distance above the four linear lifting shafts. Several positioning blocks and positioning pins are provided on the first flat plate.

[0009] Furthermore, a support member is provided on one side and the middle of the rotating plate, and a second flat plate is fixed on the support member, and the second flat plate is located above the first flat plate.

[0010] Furthermore, the foam quick-change layer is located on the other side of the rotating plate. The foam quick-change layer includes a foam quick-change plate, two quick-change handles, a number of pins and a number of waist-round positioning pins. Spring screws are provided on both sides of the quick-change handles, and a handle positioning pin is provided in the middle. The pin passes through the foam quick-change plate and the rotating plate. A waist hole is provided on the foam quick-change plate to match the waist-round positioning pin, and the top of the waist-round positioning pin is waist-round.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention carries out the foaming process of the car backrest and the process of assembling the face cover after secondary positioning on one tool, which saves the transportation time between processes and reduces the risk of damaging the workpiece during transportation; the rotating structure of the present invention is simple and convenient to operate, which provides convenience for robot or manual assembly; the present invention adopts a foam quick-change layer so that different foam quick-change layers are suitable for different car backrests, and it is convenient to disassemble and install; the present invention uses a lifting mechanism to hide and protrude the positioning block and the positioning pin, so as to make the plane required for secondary positioning and face cover assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0014] Figure 3This is a structural diagram of the utility model wherein the rotating mechanism is located on the bottom plate;

[0015] Figure 4 This is a schematic diagram of the structure of the rotating mechanism of the utility model;

[0016] Figure 5 This is a schematic diagram of the lifting mechanism structure of the utility model;

[0017] Figure 6 This is a schematic diagram of the rotation positioning layer structure of the utility model Figure 1 ;

[0018] Figure 7 This is a schematic diagram of the rotation positioning layer structure of the utility model Figure 2 ;

[0019] Figure 8 This is a schematic diagram of the rotation positioning layer structure of the utility model Figure 3 ;

[0020] Figure 9 This is a schematic diagram of the structure of the foam quick-change layer of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-29. The present invention provides the following technical solutions: a tool for positioning a car seat backrest, comprising a bottom plate layer 1, a rotation positioning layer 2 and a foam quick-change layer 3, wherein the rotation positioning layer 2 comprises a rotation mechanism and a positioning mechanism, the rotation mechanism is located on the bottom plate layer 1, the positioning mechanism is located on one side of the rotation mechanism, and the foam quick-change layer 3 is located on the other side of the rotation mechanism, the positioning mechanism comprises a lifting mechanism, a positioning block 221 and a positioning pin 222, the top surface of the positioning mechanism is provided with a second flat plate 223, the second flat plate 223 is provided with a hollow portion adapted to the positioning block 221 and the positioning pin 222, and the lifting mechanism is lifted. The positioning block 221 and the positioning pin 222 are moved up and down on the surface of the second flat plate 223 to achieve hiding and protrusion, and the bottom of the rotating positioning mechanism is rotated to achieve rotation. The foam quick-change layer 3 is used for the foaming area after the car backrest is fixed. The foam quick-change plate 301 on the foam quick-change layer 3 can achieve quick disassembly and quick assembly, and different foam quick-change layers 3 are suitable for different models of rear seats. The rotating positioning layer 2 is used for secondary positioning of the car backrest and assembly of the face cover. When assembling the face cover, the positioning block 221 and the positioning pin 222 can be hidden. At the same time, this layer can realize rotation to adjust the assembly angle, thereby facilitating the operation of the robot's automated assembly.

[0023] For details, please refer to Figure 3-4The bottom plate layer 1 is provided with a bottom plate 101. The size of the bottom plate 101 is matched with the assembly line to ensure that the tooling will not move randomly when running on the assembly line. The rotating mechanism includes a bearing synchronization plate 201, a bearing 202, a hook spring 203, a movable rod 204, a movable bearing 205, a support block 206, a fixed pin 207, a connector 208, a clamping plate 209 and a rotating plate 210. The bottom of the bearing 202 is fixed on the bottom plate 101 and the top is rotatably connected to the rotating plate 210. On the bottom surface, when the bearing 202 rotates, the bottom plate 101 is fixed, and the rotating plate 210 rotates with the bearing 202. The bearing synchronization plate 201 is connected to the outer periphery of the bearing 202. The bearing 202 and the bearing synchronization plate 201 rotate synchronously. Four notches 2011 are evenly opened on the bearing synchronization plate 201. One end of the hook spring 203 is connected to the connector 208 and the other end is connected to one end of the movable rod 204. The other end of the movable rod 204 is fixed to the bottom plate 1 by the fixing pin 207. 01, the connector 208 is fixed on the bottom plate 101, the middle of the movable rod 204 is fixed by one end of the two clamping plates 209, the other ends of the two clamping plates 209 are located in the recess 2011 and the middle is connected to the movable bearing 205, the hook spring 203 and the movable rod 204 are angled, the movable bearing 205 can slide along the outer edge of the bearing synchronization plate 201, as the movable bearing 205 slides out of the recess 2011, the bearing synchronization plate 201 pushes the clamping plate 209 outward, and the clamping plate 209 The movable rod 204 is driven to move outward, and the outward movement of the movable rod 204 stretches the hook spring 203. When the movable bearing 205 is inserted into the next notch 2011, the hook spring 203 rebounds and pulls the movable rod 204 inward. The end of the movable rod 204 close to the hook spring 203 contacts the support block 206. The movable rod 204 and the support block 206 are not fixed, and provide support during the outward and inward movement of the movable rod 204, so that the movable rod 204 moves stably.

[0024] The movement principle of the rotating mechanism is: manually push the rotating plate 210, the bearing 202 rotates, so that the bearing synchronization plate 201 rotates synchronously with the bearing 202. At this time, the movable bearing 205 rotates out of the recess 2011 along the outer periphery of the bearing synchronization plate 201. Since the diameter outside the recess 2011 on the outer periphery of the bearing synchronization plate 201 is larger than the diameter at the recess 2011, the bearing synchronization plate 201 pushes the clamping plate 209 and the movable bearing 205 outward together, so the movable rod 204 is pushed outward, and the hook spring 203 is stretched to generate a restoring force. Manually push the rotating plate 210 until it rotates 90°. Under the action of the hook spring 203, the movable rod 204 and the movable bearing 205 are pushed inward together, and the movable bearing 205 automatically slides into the next recess 2011, thereby locking it. When the rotation angle needs to be rotated, repeat the above steps.

[0025] For details, please refer to Figure 5-8The lifting mechanism includes a connecting rod 211, a sliding rail 212, a support arm 213, a sliding bearing 214, a linear guide 215, a slider 216, an ascending rod 217 and a descending rod 218. One end and the middle of the other side between the two connecting rods 211 are fixedly connected to the sliding rail 212. One end of the two connecting rods 211 is fixedly connected to the descending rod 218 on the side, and the other end is connected to the ascending rod 217 in the middle. A linear guide 215 is provided at the bottom of the two sliding rails 212. The linear guide 215 is fixed on one side of the rotating plate 210. A slider 216 is fixed at the bottom of the two sliding rails 212 and the slider 216 slides on the linear guide 215. Four support arms 213 and sliding bearings 214 are provided. The sliding bearing 214 is connected to the bottom of the support arm 213, and the support arm 213 moves along the sliding rail 212 through the sliding bearing 214.

[0026] Specifically, one side of the sliding track 212 is an H-shaped inclined surface 2122, and grooves 2121 are set in the middle of both sides of the top surface. The inclined surfaces 2122 of the two sliding tracks 212 are both facing the direction of the rising rod 217. The sliding track 212 close to the rising rod 217 is located in the middle of the two connecting rods 211. Lift the rising rod 217, and the two support arms 213 and the sliding bearings 214 thereunder slide along the two sides of the H-shaped inclined surface 2122 of a sliding track 212 into the two grooves 2121 on the top surface of the sliding bearing 214. Slightly lift the lowering rod 218, and the two support arms 213 and the sliding bearings 214 thereunder slide out of the grooves 2121 and slide down along the H-shaped inclined surface 2122.

[0027] Specifically, linear lifting shafts 220 are provided on the four corners of the lifting mechanism. The bottoms of the four linear lifting shafts 220 are fixed on the rotating plate 210 and the upper part is connected to the first flat plate 219. The first flat plate 219 moves up and down within a limited distance above the four linear lifting shafts 220. A number of positioning blocks 221 and positioning pins 222 are provided on the first flat plate 219. When the support arm 213 is located under the H-shaped inclined surface 2122 of the sliding rail 212, the lower part of the first flat plate 219 will resist the support arm 213 to prevent the support arm 213 and the sliding bearing 214 from sliding out. When the support arm 213 is located in the groove 2121 of the sliding rail 212, the support arm 213 pushes the first flat plate 219 upward as a whole. At this time, the number of positioning blocks 221 and positioning pins 222 on the first flat plate 219 also move upward.

[0028] Specifically, support members 224 are provided on one side and the middle of the rotating plate 210, and a second flat plate 223 is fixed on the support member 224. The second flat plate 223 is located above the first flat plate 219. When the first flat plate 219 is lifted up, several positioning blocks 221 and positioning pins 222 on the first flat plate 219 protrude from the corresponding hollow portions on the second flat plate 223. When the first flat plate 219 is not lifted up, several positioning blocks 221 and positioning pins 222 will not protrude from the corresponding hollow portions on the second flat plate 223.

[0029] The movement principle of the lifting and positioning mechanism is as follows: when the car backrest needs secondary positioning to install the face cover, it is necessary to lift several positioning blocks 221 and positioning pins 222 to protrude from the surface of the first flat plate 219. It is only necessary to lift the lifting pull rod 217. At this time, the support arm 213 on the H-shaped inclined surface 2122 of the sliding track 212 slides along the H-shaped inclined surface 2122 into the groove 2121 through the sliding bearing 214. The four support arms 213 push the first flat plate 219 up so that the several positioning blocks 221 and positioning pins 222 on the first flat plate 219 protrude from the corresponding hollow parts on the second flat plate 223, which is convenient for secondary positioning of the car backrest; then easily lift the lowering pull rod 218, the support arm 213 disengages from the groove 2121, slides down along the H-shaped inclined surface 2122 and is blocked by the lower part of the first flat plate 219. At this time, the first flat plate 219 moves downward, driving several positioning blocks 221 and positioning pins 222 to hide under the second flat plate 223, so as to operate the robot automated assembly and personnel installation.

[0030] For details, please refer to Figure 9 The foam quick-change layer 3 is located on the other side of the rotating plate 210. The foam quick-change layer 3 includes a foam quick-change plate 301, two quick-change handles 302, a plurality of latches 305 and a plurality of waist-round positioning pins 306. Spring screws 303 are provided on both sides of the quick-change handle 302, and a handle positioning pin 304 is provided in the middle. The quick-change handle 302 is fixed to the foam quick-change plate 301 by the spring screw 303. The handle positioning pin 304 passes through the foam quick-change plate 301 and the rotating plate 210 and is fixed to the rotating plate 210 in a piston-like manner at the bottom. On the top, the pin 305 passes through the foam quick-change plate 301 and the rotating plate 210. The foam quick-change plate 301 is provided with a waist hole 307 that is compatible with the waist-round positioning pin 306. The top of the waist-round positioning pin 306 is waist-round. The waist-round positioning pin 306 first passes through the waist hole 307 and then pushes the foam quick-change plate 301 so that the waist-round positioning pin 306 slides into the corresponding hole of the rotating plate 210. The top of the waist-round positioning pin 306 is buckled on the foam quick-change plate 301 at the waist hole 307, thereby fixing the waist-round positioning pin 306.

[0031] The principle of quick disassembly and assembly of the foam quick-change plate 301 is as follows: during assembly, first pass the waist-round locating pin 306 through the waist hole 307 and then push the foam quick-change plate 301 so that the waist-round locating pin 306 slides into the corresponding hole of the rotating plate 210, and the top of the waist-round locating pin 306 is buckled on the foam quick-change plate 301 at the waist hole 307 to achieve the first level of fixation; since the quick-change handle 302 is fixed on both sides by spring screws 303, the quick-change handle 302 can be pressed down and lifted up, and pressing down the quick-change handle 302 will pass the handle locating pin 304 through the foam quick-change plate 301 and the rotating plate 210 and the bottom is piston-fixed on the rotating plate 210 to achieve the second level of fixation; finally, pass the pin 305 through the foam quick-change plate 301 and the rotating plate 210 to achieve the third level of fixation, which is not only convenient to assemble, but also firmly and safely fixed. When removing the plates, first pull out the latch 305 , then pull out the waist-shaped positioning pin 306 , and finally lift up the quick-change handle 302 to pull out the handle positioning pin 304 from the foaming quick-change plate 301 and the rotating plate 210 .

[0032] The utility model combines the foaming process of the automobile backrest and the process of assembling the face cover after secondary positioning on one tool, which saves the transportation time between processes and reduces the risk of damaging the workpiece during transportation; the rotating structure of the utility model is simple and convenient to operate, which provides convenience for robot or manual assembly; the utility model adopts a foam quick-change layer so that different foam quick-change layers are suitable for different automobile backrests, and both disassembly and installation are convenient; the utility model uses a lifting mechanism to hide and protrude the positioning block and the positioning pin, so as to perform secondary positioning and the plane required for face cover assembly.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tool for positioning a car seat back, characterized in that: The invention comprises a bottom plate layer (1), a rotation positioning layer (2) and a foam quick-change layer (3), wherein the rotation positioning layer (2) comprises a rotation mechanism and a positioning mechanism, wherein the rotation mechanism is located on the bottom plate layer (1), the positioning mechanism is located on one side of the rotation mechanism, and the foam quick-change layer (3) is located on the other side of the rotation mechanism, and the positioning mechanism comprises a lifting mechanism, a positioning block (221) and a positioning pin (222), and a second flat plate (223) is provided on the top surface of the positioning mechanism, and a hollow portion adapted to the positioning block (221) and the positioning pin (222) is provided on the second flat plate (223). When the lifting mechanism is lifted, the positioning block (221) and the positioning pin (222) move up and down on the surface of the second flat plate (223) to achieve concealment and protrusion, and the bottom of the positioning mechanism is rotated to achieve rotation.

2. The tool for positioning the car seat back according to claim 1, characterized in that: The bottom plate layer (1) is provided with a bottom plate (101), and the rotating mechanism includes a bearing synchronization plate (201), a bearing (202), a hook spring (203), a movable rod (204), a movable bearing (205), a support block (206), a fixing pin (207), a connector (208), a clamping plate (209) and a rotating plate (210). The bottom of the bearing (202) is fixed on the bottom plate (101) and the top is rotatably connected to the bottom surface of the rotating plate (210). The bearing synchronization plate (201) is connected to the outer periphery of the bearing (202). Four notches are evenly opened on the bearing synchronization plate (201). (2011), one end of the hook spring (203) is connected to the connecting head (208), and the other end is connected to one end of the movable rod (204), the other end of the movable rod (204) is fixed to the base plate (101) by a fixing pin (207), the connecting head (208) is fixed on the base plate (101), the middle of the movable rod (204) is fixed by one end of two clamping plates (209), the other ends of the two clamping plates (209) are located in the recess (2011) and are connected to the movable bearing (205) in the middle, and the lower side of the movable rod (204) close to the end of the hook spring (203) contacts the support block (206).

3. The tool for positioning the car seat back according to claim 2, characterized in that: The lifting mechanism comprises a connecting rod (211), a sliding rail (212), a support arm (213), a sliding bearing (214), a linear guide rail (215), a slider (216), an ascending rod (217) and a descending rod (218), one end and the middle of the other side of the two connecting rods (211) are fixedly connected to the sliding rail (212), one end of the two connecting rods (211) is fixedly connected to the descending rod (218) and the other end is connected to the ascending rod (217), and the two sliding rails (212) are fixedly connected to the descending rod (218) and the other end is connected to the ascending rod (217). ) is provided with a linear guide rail (215) at the bottom, the linear guide rail (215) is fixed on one side of the rotating plate (210), a slider (216) is fixed at the bottom of the two sliding rails (212), and the slider (216) slides on the linear guide rail (215), four support arms (213) and four sliding bearings (214) are provided, the sliding bearings (214) are connected to the bottom of the support arms (213), and the support arms (213) move along the sliding rails (212) through the sliding bearings (214).

4. The tool for positioning the car seat back according to claim 3, characterized in that: One side of the sliding track (212) is an H-shaped inclined surface (2122), and grooves (2121) are provided in the middle of both sides of the top surface.

5. The tool for positioning the car seat back according to claim 4, characterized in that: Linear lifting shafts (220) are provided at four corners of the lifting mechanism. The bottoms of the four linear lifting shafts (220) are fixed on the rotating plate (210) and the upper parts are connected to a first flat plate (219). The first flat plate (219) moves up and down within a limited distance above the four linear lifting shafts (220). A plurality of positioning blocks (221) and positioning pins (222) are provided on the first flat plate (219).

6. The tool for positioning the car seat back according to claim 5, characterized in that: Support members (224) are provided on one side and the middle of the rotating plate (210), and a second flat plate (223) is fixed on the support member (224), and the second flat plate (223) is located above the first flat plate (219).

7. The tool for positioning the car seat back according to claim 6, characterized in that: The foam quick-change layer (3) is located on the other side of the rotating plate (210), and the foam quick-change layer (3) comprises a foam quick-change plate (301), two quick-change handles (302), a plurality of latches (305) and a plurality of waist-round positioning pins (306). Spring screws (303) are provided on both sides of the quick-change handle (302), and a handle positioning pin (304) is provided in the middle. The latches (305) pass through the foam quick-change plate (301) and the rotating plate (210). A waist hole (307) adapted to the waist-round positioning pin (306) is provided on the foam quick-change plate (301), and the top end of the waist-round positioning pin (306) is waist-round.

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