A welding positioning device for processing of an automobile headrest frame is provided

Abstract

The application relates to the technical field of automobile headrest welding, in particular to a welding positioning device convenient to adjust and used for automobile headrest frame machining, which comprises a positioning block, the lower end of the positioning block is fixedly connected with a supporting seat, the upper end of the positioning block is provided with two installation grooves in the middle, a headrest fixing foot is inserted into the middle of the installation groove, the side end of the headrest fixing foot is provided with a plurality of clamping grooves, the side end of the installation groove is provided with a sliding groove, an extrusion plate is slidably connected in the sliding groove, the side end of the extrusion plate is slidably connected with a positioning blocking mechanism, the positioning blocking mechanism is composed of a blocking block, a guide inclined surface, a blocking inclined surface, a fixing groove, a deformation piece, a positioning protrusion and an adjusting groove, the side end of the positioning block is fixedly connected with a connecting plate, the connecting plate is in T-shaped structure, the headrest fixing foot can be measured when the headrest fixing foot is positioned, the vertical and horizontal directions of the headrest fixing foot are positioned and fixed, and the welding precision of the headrest fixing foot and a headrest framework is ensured.

Description

Technical Field

[0001] This invention relates to the field of automotive headrest welding technology, specifically to a welding positioning device for easily adjustable automotive headrest frame processing. Background Technology

[0002] Cars are a vital means of transportation in our daily lives. With my country's industrial upgrading, the automotive industry has become a pillar industry, leading to lower car costs and making cars increasingly common in households. To enhance passenger comfort and accommodate different groups, many car headrests are designed to attach to the seats. The lower end of the headrest has two metal mounting feet with slots on their sides, allowing it to engage with the car seat and thus control the headrest's height.

[0003] Current automotive headrests require welding metal fixing feet to the headrest frame during manufacturing to ensure the connection strength and support the occupant's head in the event of a crash. However, the existing metal fixing feet require pre-positioning before welding; otherwise, misalignment can occur. Positioning the metal fixing feet primarily involves engaging the slots on the side of the feet. However, manufacturing errors can lead to inconsistent distances between adjacent slots, causing positioning errors. Furthermore, inherent dimensional errors in the metal fixing feet themselves prevent proper installation on the car seat. Summary of the Invention

[0004] The purpose of this invention is to provide a welding positioning device for processing automotive headrest frames that is easy to adjust, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding positioning device for easily adjustable automotive headrest frame processing, comprising a positioning block, a support base fixedly connected to the lower end of the positioning block, two mounting grooves in the middle of the upper end of the positioning block, a headrest fixing foot inserted into the middle of the mounting groove, multiple snap-fit ​​grooves on the side end of the headrest fixing foot, a sliding groove on the side end of the mounting groove, a pressing plate slidably connected within the sliding groove, a positioning blocking mechanism slidably connected to the side end of the pressing plate, the positioning blocking mechanism comprising a blocking block, a guide inclined surface, a blocking inclined surface, a fixing groove, a deformable piece, a positioning protrusion, and an adjusting groove, and a connecting plate fixedly connected to the side end of the positioning block. The connecting plate has a T-shaped structure and a connecting cavity inside. A locking plate is slidably connected inside the connecting cavity. A positioning reminder device is provided at the top of the locking plate. The positioning reminder device consists of a positioning plate, a positioning groove, a pressure sensing module, a connecting spring, and a traction rod. The tail end of the locking plate is inserted into the middle of the positioning block. Two locking and fixing mechanisms are provided in the middle of the positioning block. The two locking and fixing mechanisms are located on both sides of the locking plate. The locking and fixing mechanism consists of a rotating plate, a locking head, a blocking plate, and a spring shaft. A sliding plate is provided on the side end of the locking and fixing mechanism. A reminder light is fixedly connected to the side end of the connecting plate. The reminder light is electrically connected to the pressure sensing module.

[0006] Preferably, the upper end of the mounting groove is an inclined structure, the bottom of the mounting groove is an arc-shaped structure, the blocking block is located in the middle part of the mounting groove, and when the headrest fixing foot is inserted into the mounting groove, the lower end of the blocking block abuts against the headrest fixing foot.

[0007] Preferably, the extrusion plate has an L-shaped structure, a guide groove is provided on the side end of the extrusion plate, the blocking block is slidably connected to the guide groove, a second reset spring is fixedly connected between the extrusion plate and the inner wall of the sliding groove, and the top end of the sliding plate is located in the sliding groove.

[0008] Preferably, the upper end of the blocking block is a guide slope, the lower end of the blocking block is a blocking arc surface, the fixing groove is located at the blocking arc surface, the deformable piece is fixedly connected in the fixing groove, the deformable piece is an elastic iron sheet, the deformable piece has a zigzag structure, and the positioning protrusion is fixedly connected to the lower end of the deformable piece.

[0009] Preferably, the side end of the positioning protrusion has an arc-shaped structure, and when the headrest fixing foot is inserted into the mounting groove, the snap-fit ​​groove is directly opposite the blocking block, and the positioning protrusion is snapped into the snap-fit ​​groove.

[0010] Preferably, the adjusting groove is located at the side end of the blocking block, the bottom of the adjusting groove is threaded, the side end of the extrusion plate is provided with an adjusting screw, one end of the adjusting screw is rotatably connected to the extrusion plate, the other end of the adjusting screw is provided with a slot, the side end of the extrusion plate is provided with a groove, the main body of the adjusting screw is located in the groove, and the side end of the adjusting screw is threadedly connected to the adjusting groove.

[0011] Preferably, both ends of the connecting plate are provided with positioning plates, both ends of the connecting spring are fixedly connected to the two positioning plates respectively, the positioning plates are slidably connected in the connecting cavity, the positioning groove is located at the side end of the positioning plate, the positioning groove has a V-shaped structure, and the pressure sensing module is located at the bottom of the positioning groove.

[0012] Preferably, side plates are fixedly connected to both sides of the locking plate, and the locking plate and the two side plates form a cross-shaped structure. The side plates are slidably connected to the inner wall of the connecting cavity. Two traction rods are hinged to the top of the locking plate, and the two traction rods are respectively hinged to two positioning plates. Before the headrest fixing feet and positioning blocks are installed, the positioning plates are retracted inside the connecting plate.

[0013] Preferably, a spring shaft is fixedly connected to the middle of the positioning block, a rotating plate is provided in the middle of the spring shaft, the locking head and the blocking plate are fixedly connected to the two ends of the rotating plate respectively, and locking grooves are provided on both sides of the locking plate. Before the headrest fixing foot is installed with the positioning block, the locking head and the locking groove are engaged.

[0014] Preferably, the top end of the sliding plate is inclined, a first return spring is fixedly connected between the tail end of the sliding plate and the positioning block, and a pressing protrusion is fixedly connected to the side end of the sliding plate, the pressing protrusion abutting against the side end of the rotating plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Insert the headrest fixing feet into the mounting groove. By moving the headrest fixing feet, the positioning protrusions are locked into the locking grooves to position and fix the headrest fixing feet. The blocking blocks can block the headrest fixing feet to prevent movement when the headrest fixing feet are welded to the headrest frame, ensuring that the welding is precise and avoiding misalignment.

[0017] Second, the mounting slot can measure the dimensions of the headrest fixing feet, thereby ensuring that the width of the middle of the headrest fixing feet meets the requirements and that the headrest fixing feet are installed together with the car seat;

[0018] 3. After the headrest fixing feet are inserted into the mounting slot, the headrest fixing feet are moved to abut against the positioning plate. The positioning slot limits the distance between the side end of the headrest fixing feet and the positioning block. At this time, the position of the blocking block is finely adjusted, thereby changing the position of the positioning protrusion and making the positioning protrusion snap into the snap-fit ​​groove. Even if the snap-fit ​​groove is not machined accurately, it can still position and fix the headrest fixing feet, thereby ensuring the welding of the headrest fixing feet to the headrest frame and ensuring the welding quality. Attached Figure Description

[0019] Figure 1 A schematic diagram showing the connection between the headrest fixing feet and the positioning block.

[0020] Figure 2 This is a connection diagram for the location reminder device.

[0021] Figure 3 This is an enlarged view of point A.

[0022] Figure 4 This is a schematic diagram showing the connection between the positioning block and the headrest fixing feet.

[0023] Figure 5 This is a schematic diagram showing the connection between the positioning blocking mechanism and the extrusion plate.

[0024] In the diagram: 1. Positioning block, 2. Support base, 3. Connecting plate, 4. Headrest fixing foot, 5. Reminder light, 6. Locking plate, 7. Connecting cavity, 8. Side plate, 9. Positioning reminder device, 91. Positioning plate, 92. Positioning groove, 93. Pressure sensing module, 94. Connecting spring, 95. Traction rod, 10. Snap-fit ​​groove, 11. Locking groove, 12. Sliding plate, 13. First return spring, 14. Extrusion protrusion, 15. Locking and fixing mechanism, 151. Rotating plate, 152. Locking head, 153. Blocking plate, 154. Spring shaft, 16. Mounting groove, 17. Extrusion plate, 18. Second return spring, 19. Sliding groove, 20. Guide groove, 21. Adjusting screw, 22. Positioning blocking mechanism, 221. Blocking block, 222. Guide slope, 223. Blocking arc surface, 224. Fixing groove, 225. Deformation piece, 226. Positioning protrusion, 227. Adjusting groove. Detailed Implementation

[0025] To enhance understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-5This invention provides a technical solution: a welding positioning device for easily adjustable automotive headrest frame processing, comprising a positioning block 1, a support base 2 fixedly connected to the lower end of the positioning block 1, two mounting grooves 16 provided in the middle of the upper end of the positioning block 1, a headrest fixing foot 4 inserted into the middle of the mounting groove 16, multiple snap-fit ​​grooves 10 provided on the side end of the headrest fixing foot 4, a sliding groove 19 provided on the side end of the mounting groove 16, a pressing plate 17 slidably connected in the sliding groove 19, a positioning blocking mechanism 22 slidably connected on the side end of the pressing plate 17, the positioning blocking mechanism 22 consisting of a blocking block 221, a guide inclined surface 222, a blocking inclined surface, a fixing groove 224, a deformable piece 225, a positioning protrusion 226, and an adjusting groove 227, and a connecting plate 3 fixedly connected to the side end of the positioning block 1. Plate 3 has a T-shaped structure. The interior of the connecting plate 3 has a connecting cavity 7. A locking plate 6 is slidably connected in the connecting cavity 7. The top of the locking plate 6 is equipped with a positioning reminder device 9. The positioning reminder device 9 consists of a positioning plate 91, a positioning groove 92, a pressure sensing module 93, a connecting spring 94, and a traction rod 95. The tail end of the locking plate 6 is inserted into the middle of the positioning block 1. The middle of the positioning block 1 is equipped with two locking and fixing mechanisms 15. The two locking and fixing mechanisms 15 are located on both sides of the locking plate 6. The locking and fixing mechanism 15 consists of a rotating plate 151, a locking head 152, a blocking plate 153, and a spring shaft 154. The side end of the locking and fixing mechanism 15 is equipped with a sliding plate 12. The side end of the connecting plate 3 is fixedly connected with a reminder light 5. The reminder light 5 is electrically connected to the pressure sensing module 93.

[0027] The upper end of the mounting groove 16 is inclined to facilitate the insertion of the headrest fixing foot 4 into the mounting groove 16. The bottom of the mounting groove 16 is arc-shaped. The blocking block 221 is located in the middle of the mounting groove 16. When the headrest fixing foot 4 is inserted into the mounting groove 16, the lower end of the blocking block 221 abuts against the headrest fixing foot 4. After the headrest fixing foot 4 is installed into the mounting groove 16, the blocking block 221 blocks the headrest fixing foot 4 and restricts the vertical direction of the headrest fixing foot 4.

[0028] The extrusion plate 17 has an L-shaped structure. A guide groove 20 is provided on the side end of the extrusion plate 17. The blocking block 221 is slidably connected to the guide groove 20. A second return spring 18 is fixedly connected between the extrusion plate 17 and the inner wall of the sliding groove 19. The top end of the sliding plate 12 is located inside the sliding groove 19. The upper end of the blocking block 221 is a guide slope 222, and the lower end of the blocking block 221 is a blocking arc surface 223. A fixing groove 224 is located at the blocking arc surface 223. A deformable piece 225 is fixedly connected inside the fixing groove 224. The deformable piece 225 is an elastic iron sheet. The deformable piece 225 has a zigzag structure. The positioning protrusion 226 is fixedly connected to the lower end of the deformable piece 225. When the headrest fixing foot 4 and the positioning block 1 are installed, the headrest fixing foot 4 presses against the guide slope, thereby pushing the blocking block 221 and the pressing plate 17 to move together. When the pressing plate 17 moves, it presses against the sliding plate 12. At the same time, the pressing plate 17 compresses and stores force on the connecting spring 94. When the headrest fixing foot 4 moves to the lower end of the blocking block 221, the blocking block 221 is reset under the action of the connecting spring 94.

[0029] The positioning protrusion 226 has an arc-shaped side end. When the headrest fixing foot 4 is inserted into the mounting groove 16, the snap-fit ​​groove 10 is directly opposite the blocking block 221, and the positioning protrusion 226 is snapped into the snap-fit ​​groove 10. The adjusting groove 227 is located at the side end of the blocking block 221. The bottom of the adjusting groove 227 is threaded. The side end of the extrusion plate 17 is provided with an adjusting screw 21. One end of the adjusting screw 21 is rotatably connected to the extrusion plate 17, and the other end of the adjusting screw 21 is provided with a slot. The side end of the extrusion plate 17 is provided with a groove, and the main body of the adjusting screw 21 is located in the groove. The side end of the adjusting screw 21 is threadedly connected to the adjusting groove 227. The headrest fixing foot 4 When the blocking block is at its lower end, pull the headrest fixing foot 4 to make the side end of the headrest fixing foot 4 abut against the positioning plate 91. If the positioning protrusion 226 is not engaged with the locking groove 10 at this time, rotate the adjusting screw 21. The adjusting screw 21 drives the blocking block 221 to move, thereby fine-tuning the position of the blocking block 221, so that the positioning protrusion 226 moves to the locking groove 10. The positioning protrusion 226 is engaged in the locking groove 10 by the deformation piece 225, thereby positioning and fixing the headrest fixing foot 4 in the horizontal direction, preventing the headrest fixing foot 4 from moving when welding to the headrest frame, and ensuring the quality of welding.

[0030] Both ends of the connecting plate 3 are provided with positioning plates 91. The two ends of the connecting spring 94 are fixedly connected to the two positioning plates 91 respectively. The positioning plates 91 are slidably connected in the connecting cavity 7. The positioning groove 92 is located at the side end of the positioning plate 91. The positioning groove 92 has a V-shaped structure. The pressure sensing module 93 is located at the bottom of the positioning groove 92. Both sides of the locking plate 6 are fixedly connected with side plates 8. The locking plate 6 and the two side plates 8 form a cross-shaped structure. The side plates 8 are slidably connected to the inner wall of the connecting cavity 7. The top of the locking plate 6 is hinged with two traction rods 95. 95 is hinged to two positioning plates 91 respectively. Before the headrest fixing foot 4 and the positioning block 1 are installed, the positioning plate 91 is retracted inside the connecting plate 3 to avoid interfering with the installation of the headrest fixing foot 4. After the headrest fixing foot 4 is installed, the pressing plate 17 presses the sliding plate 12 to make the positioning plate 91 pop out of the connecting plate 3. When the headrest fixing foot 4 is pulled, the headrest fixing foot 4 is engaged in the positioning groove 92, thereby positioning the distance between the side end of the headrest fixing foot 4 and the positioning block 1, so that the positioning protrusion 226 can be finely adjusted and engaged in the engagement groove 10.

[0031] A spring shaft 154 is fixedly connected to the middle of the positioning block 1. A rotating plate 151 is provided in the middle of the spring shaft 154. A locking head 152 and a blocking plate 153 are fixedly connected to the two ends of the rotating plate 151 respectively. Locking grooves 11 are provided on both sides of the locking plate 6. Before the headrest fixing foot 4 is installed with the positioning block 1, the locking head 152 and the locking groove 11 are engaged. The top of the sliding plate 12 is inclined. A first return spring 13 is fixedly connected between the tail end of the sliding plate 12 and the positioning block 1. A pressing protrusion 14 is fixedly connected to the side end of the sliding plate 12. The pressing protrusion 14 abuts against the side end of the rotating plate 151. When the sliding plate 12 is pressed, the sliding plate 12 drives the pressing protrusion 14 to move together. The pressing protrusion 14 presses the rotating plate 151, thereby moving the locking head 152 out of the locking groove 11. Under the action of the connecting spring 94, the two positioning plates 91 pop out of the connecting plate 3.

[0032] First, the headrest fixing foot 4 is engaged in the mounting groove 16. During the installation process, the headrest fixing foot 4 presses against the guide slope 222 at the upper end of the blocking block 221, thereby pushing the blocking block 221 and the pressing plate 17 to move together and compressing the connecting spring 94. When the headrest fixing foot 4 moves below the blocking block 221, the blocking block 221 resets, positioning the headrest fixing foot 4 vertically. When the pressing plate 17 moves, it presses against the sliding plate 12, causing the positioning plate 91 to pop out of the connecting plate 3. At this time, the headrest fixing foot 4 is pulled, and the headrest fixing foot 4 is engaged in the positioning groove 92, and the positioning protrusion 226 is engaged in the snap-fit ​​groove 10. If the positioning protrusion 226 is not engaged in the snap-fit ​​groove 10, the adjusting screw 21 is rotated, which drives the blocking block 221 to move, and the position of the blocking block 221 and the positioning protrusion 226 is finely adjusted to ensure that the headrest fixing foot 4 is positioned and fixed horizontally.

[0033] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding positioning device for easily adjustable automotive headrest frame processing, comprising a positioning block (1), characterized in that: The lower end of the positioning block (1) is fixedly connected to a support base (2). The upper end of the positioning block (1) has two mounting slots (16) in the middle. A headrest fixing foot (4) is inserted into the middle of each mounting slot (16). The side end of the headrest fixing foot (4) has multiple snap-fit ​​slots (10). The side end of the mounting slot (16) has a sliding groove (19). A pressing plate (17) is slidably connected within the sliding groove (19). A positioning blocking mechanism (22) is slidably connected to the side end of the pressing plate (17). The positioning blocking mechanism (22) consists of a blocking block (221), a guide slope (222), a blocking slope, a fixing groove (224), a deformable piece (225), a positioning protrusion (226), and an adjusting groove (227). The upper end of the blocking block (221) is a guide slope (222), and the lower end of the blocking block (221) is a blocking arc surface (223). The fixing groove (224) is located at the blocking arc surface (223). The deformable piece (225) is fixedly connected in the fixing groove (224). The deformable piece (225) is an elastic iron sheet with a zigzag structure. The positioning protrusion (226) is fixedly connected to the lower end of the deformable piece (225). The adjusting groove (227) is located at the side end of the blocking block (221). The bottom of the adjusting groove (227) is threaded. The side end of the extrusion plate (17) is provided with an adjusting screw (21). One end of the adjusting screw (21) is rotatably connected to the extrusion plate (17). The other end of the adjusting screw (21) is provided with a slot, and the side end of the pressing plate (17) is provided with a groove. The main body of the adjusting screw (21) is located in the groove. The side end of the adjusting screw (21) and the adjusting groove (227) are threadedly connected. The side end of the positioning block (1) is fixedly connected to a connecting plate (3). The connecting plate (3) has a T-shaped structure. The interior of the connecting plate (3) is provided with a connecting cavity (7). A locking plate (6) is slidably connected in the connecting cavity (7). The top of the locking plate (6) is provided with a positioning reminder device (9). The positioning reminder device (9) consists of a positioning plate (91), a positioning groove (92), a pressure sensing module (93), a connecting spring (94), and a traction rod (95). The connecting plate (3) Both ends are provided with positioning plates (91). The two ends of the connecting spring (94) are fixedly connected to the two positioning plates (91) respectively. The positioning plates (91) are slidably connected in the connecting cavity (7). The positioning groove (92) is located at the side end of the positioning plate (91). The positioning groove (92) has a V-shaped structure. The pressure sensing module (93) is located at the bottom of the positioning groove (92). The top of the locking plate (6) is hinged with two traction rods (95). The two traction rods (95) are hinged to the two positioning plates (91) respectively. Before the headrest fixing foot (4) and the positioning block (1) are installed, the positioning plate (91) is retracted into the connecting plate (3). The tail end of the locking plate (6) is inserted into the middle of the positioning block (1).The positioning block (1) has two locking mechanisms (15) in the middle. The two locking mechanisms (15) are located on both sides of the locking plate (6). The locking mechanism (15) consists of a rotating plate (151), a locking head (152), a blocking plate (153), and a spring shaft (154). The positioning block (1) has a spring shaft (154) fixedly connected in the middle. The spring shaft (154) has a rotating plate (151) in the middle. The locking head (152) and the blocking plate (153) are fixedly connected to both ends of the rotating plate (151). The locking plate (6) has locking grooves (11) on both sides. The headrest fixing foot (4) is connected to the positioning block (151). 1) Before installation, the locking head (152) and the locking groove (11) are engaged. The side end of the locking fixing mechanism (15) is provided with a sliding plate (12). The top end of the sliding plate (12) is located in the sliding groove (19). The top end of the sliding plate (12) is an inclined structure. A first reset spring (13) is fixedly connected between the tail end of the sliding plate (12) and the positioning block (1). A pressing protrusion (14) is fixedly connected to the side end of the sliding plate (12). The pressing protrusion (14) abuts against the side end of the rotating plate (151). An indicator light (5) is fixedly connected to the side end of the connecting plate (3). The indicator light (5) is electrically connected to the pressure sensing module (93).

2. The welding positioning device for easily adjustable automotive headrest frame processing according to claim 1, characterized in that: The upper end of the mounting groove (16) is inclined, the bottom of the mounting groove (16) is arc-shaped, the blocking block (221) is located in the middle part of the mounting groove (16), and when the headrest fixing foot (4) is inserted into the mounting groove (16), the lower end of the blocking block (221) abuts against the headrest fixing foot (4).

3. The welding positioning device for easily adjustable automotive headrest frame processing according to claim 1, characterized in that: The extrusion plate (17) has an L-shaped structure. The side end of the extrusion plate (17) is provided with a guide groove (20). The blocking block (221) and the guide groove (20) are slidably connected. A second reset spring (18) is fixedly connected between the inner wall of the extrusion plate (17) and the sliding groove (19).

4. The welding positioning device for easily adjustable automotive headrest frame processing according to claim 1, characterized in that: The side end of the positioning protrusion (226) is an arc-shaped structure. When the headrest fixing foot (4) is inserted into the mounting groove (16), the snap-fit ​​groove (10) is directly opposite the blocking block (221), and the positioning protrusion (226) is snapped into the snap-fit ​​groove (10).

5. The welding positioning device for easily adjustable automotive headrest frame processing according to claim 1, characterized in that: Both sides of the locking plate (6) are fixedly connected to side plates (8). The locking plate (6) and the two side plates (8) form a cross-shaped structure. The side plates (8) are slidably connected to the inner wall of the connecting cavity (7).

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