Positioning tool for automobile seat backrest

Abstract

The invention 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 rotating positioning layer and a foaming quick-changing layer, the rotating positioning layer comprises a rotating mechanism and a positioning mechanism, the rotating mechanism is located on the bottom plate layer, and the positioning mechanism is located on one side of the rotating 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. By arranging 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 assembly of the face cover is completed, and the automatic process of the foaming face cover is achieved.

Description

Technical Field

[0001] The invention belongs to the field of automobile seat tooling, and in particular relates to a positioning tooling for 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 tooling station to complete the surface assembly. At present, there is no set of positioning tooling to achieve seat back foaming and surface assembly. The production process time of the rear seat backs is lengthened, which greatly reduces the production efficiency of the rear seat backs. Summary of the invention

[0003] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a tooling for positioning a car seat backrest. 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, thereby realizing the automation process of the foam cover.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a kind of tooling 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 of the rotation mechanism, and the foam quick-change layer is located on the other side of 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 matched with the positioning block and the positioning pin is provided on the second flat plate, 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 protruding, 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 fixing pin, a connecting head, a clamp 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, and 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 fixing pin, and the connecting head is fixed to the bottom plate. The middle of the movable rod is fixed by one end of two clamps, and the other ends of the two clamps 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 contacts 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 other side of 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 arranged 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 arranged. The sliding bearings are connected to the bottom of the support arms, and the support arms move along the sliding rails through the sliding bearings.

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

[0008] Furthermore, linear lifting shafts are arranged 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. A number of positioning blocks and positioning pins are arranged on the first flat plate.

[0009] Furthermore, a support member is provided on one side and the middle of the rotating plate, 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 latches and a number of waist-round positioning pins. Spring screws are arranged on both sides of the quick-change handles, and a handle positioning pin is arranged in the middle. The latch passes through the foam quick-change plate and the rotating plate. A waist hole matching the waist-round positioning pin is provided on the foam quick-change plate, 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 automobile backrest and the process of assembling the face cover after secondary positioning on one tooling, 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, providing convenience for robot or manual assembly; the present invention adopts a foaming quick-change layer so that different foaming quick-change layers are suitable for different automobile backrests, and both disassembly and installation are convenient; 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 The structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a structural schematic diagram of the rotating mechanism of the present invention being located on the bottom plate; Figure 4It is a schematic diagram of the structure of the rotating mechanism of the present invention; Figure 5 It is a schematic diagram of the lifting mechanism structure of the present invention; Figure 6 The structure of the rotation positioning layer of the present invention is shown in FIG. Figure 1 ; Figure 7 The structure of the rotation positioning layer of the present invention is shown in FIG. Figure 2 ; Figure 8 The structure of the rotation positioning layer of the present invention is shown in FIG. Figure 3 ; Fig. 9 It is a schematic diagram of the foam quick-change layer structure of the present invention. DETAILED DESCRIPTION

[0013] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0014] See also Figure 1-2 9. 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, and 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 to make The positioning block 221 and the positioning pin 222 move 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 can be 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 installation, 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.

[0015] 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 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 rotating plate 210. The bottom surface, when the bearing 202 rotates, the bottom plate 101 is fixed, 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, and 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 notch 2011 and the middle is connected with the movable bearing 205, the hook spring 203 and the movable rod 204 form an angle, 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 notch 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 lower side of 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 a supporting effect is provided during the outward and inward movement of the movable rod 204, so that the movable rod 204 moves stably.

[0016] 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, and 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. The rotating plate 210 is pushed manually 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 further rotated, the above steps can be repeated.

[0017] 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. The sliding rail 212 is fixedly connected at one end and the middle of the other side between the two connecting rods 211. The descending rod 218 is fixedly connected to the side of one end of the two connecting rods 211, and the ascending rod 217 is connected in the middle of the other end. A linear guide 215 is arranged 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 arranged. The sliding bearing 214 is connected to the bottom of the support arm 213. The support arm 213 moves along the sliding rail 212 through the sliding bearing 214.

[0018] 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. The rising rod 217 is lifted, 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. The lowering rod 218 is slightly lifted, 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.

[0019] Specifically, linear lifting shafts 220 are arranged 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 parts are 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 plurality of positioning blocks 221 and positioning pins 222 are arranged on the first flat plate 219. When the support arm 213 is located below the H-shaped inclined surface 2122 of the sliding track 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 track 212, the support arm 213 lifts the first flat plate 219 upward as a whole. At this time, the plurality of positioning blocks 221 and positioning pins 222 on the first flat plate 219 also move upward.

[0020] 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, a plurality of 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, a plurality of positioning blocks 221 and positioning pins 222 will not protrude from the corresponding hollow portions on the second flat plate 223.

[0021] 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 a plurality of 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 rod 217. At this time, the support arm 213 on the H-shaped inclined surface 2122 of the sliding track 212 slides into the groove 2121 along the H-shaped inclined surface 2122 through the sliding bearing 214. The four support arms 213 push up the first flat plate 219 so that the plurality of 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 the descending rod 218 is easily lifted, and the support arm 213 is disengaged from the groove 2121 and slides down along the H-shaped inclined surface 2122 to the bottom and is blocked by the lower part of the first flat plate 219. At this time, the first flat plate 219 moves downward to drive the plurality of positioning blocks 221 and positioning pins 222 to be hidden under the second flat plate 223, so as to facilitate the operation of the robot's automated assembly and the installation of personnel.

[0022] For details, please refer to Fig. 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-shaped positioning pins 306. Spring screws 303 are arranged on both sides of the quick-change handle 302, and a handle positioning pin 304 is arranged in the middle. The quick-change handle 302 is fixed on 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-shaped positioning pin 306. The top of the waist-shaped positioning pin 306 is waist-shaped. The waist-shaped positioning pin 306 first passes through the waist hole 307 and then pushes the foam quick-change plate 301 so that the waist-shaped positioning pin 306 slides into the corresponding hole of the rotating plate 210. The top of the waist-shaped positioning pin 306 is buckled on the foam quick-change plate 301 at the waist hole 307, thereby fixing the waist-shaped positioning pin 306.

[0023] 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 by spring screws 303 on both sides, 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 .

[0024] The present invention carries out 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 present invention is simple and convenient to operate, which provides convenience for robot or manual assembly; the present invention adopts a foaming quick-change layer so that different foaming quick-change layers are suitable for different automobile backrests, and both disassembly and installation are convenient; 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.

[0025] Finally, it should be noted that the above are only 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 can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope 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 rotational positioning layer (2) and a foam quick-change layer (3), wherein the rotational 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, wherein the positioning mechanism comprises a lifting mechanism, a positioning block (221) and a positioning pin (222), wherein a second flat plate (223) is provided on the top surface of the positioning mechanism, wherein a hollow portion matching the positioning block (221) and the positioning pin (222) is provided on the second flat plate (223), wherein the lifting mechanism is lifted so that 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 tooling for positioning the backrest of an automobile seat according to claim 1, characterized in that: The bottom plate layer (1) is provided with a bottom plate (101), and the rotating mechanism comprises 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), wherein 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), and four notches are evenly formed 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 bottom plate (101) by a fixing pin (207), the connecting head (208) is fixed on the bottom 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 one end of the movable rod (204) close to the hook spring (203) contacts the support block (206).

3. The tooling for positioning the backrest of an automobile seat according to claim 2, characterized in that: The lifting mechanism comprises a connecting rod (211), a sliding track (212), a support arm (213), a sliding bearing (214), a linear guide rail (215), a slider (216), an ascending pull rod (217) and a descending pull rod (218); one end and the middle of the other side between the two connecting rods (211) are fixedly connected to the sliding track (212); one end of the two connecting rods (211) is fixedly connected to the descending pull rod (218) on the side, and the other end is connected to the ascending pull rod (217); the two sliding tracks (212) ) 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 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).

4. The tooling for positioning the backrest of an automobile seat according to claim 3, characterized in that: The sliding track (212) has an H-shaped inclined surface (2122) on one side and grooves (2121) are arranged in the middle of both sides of the top surface.

5. The tooling for positioning the backrest of an automobile seat according to claim 4, characterized in that: Linear lifting shafts (220) are arranged 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 arranged on the first flat plate (219).

6. The tooling for positioning the backrest of an automobile seat according to claim 5, characterized in that: A support member (224) is provided on one side and in the middle of the rotating plate (210), 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 tooling for positioning the backrest of an automobile seat 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-shaped positioning pins (306). Spring screws (303) are arranged on both sides of the quick-change handle (302), and a handle positioning pin (304) is arranged in the middle. The latches (305) pass through the foam quick-change plate (301) and the rotating plate (210). A waist hole (307) matching the waist-shaped positioning pin (306) is opened on the foam quick-change plate (301), and the top end of the waist-shaped positioning pin (306) is waist-shaped.

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