A tool for pulling teeth of a headrest fixing bracket

Abstract

The present invention discloses a tool for pulling teeth of a headrest fixing bracket, which belongs to the technical field of automobile headrest production, and comprises a tool body, a workbench and a connecting plate. A cavity is provided inside the tool body, and the cavity is provided with three groups. Two groups of retaining edges are integrally formed on the inner wall of the cavity, and the two groups of retaining edges are symmetrically distributed on the inner wall of the cavity. The bottom surfaces of the two groups of retaining edges are provided with a first groove, and the first groove is provided with an arc surface structure. The device drives the synchronous movement of the pulling gear by the horizontal movement of the tool body, and the headrest fixing bracket is fixed between the fixing seat and the workbench, and a slot is provided on the surface of the headrest fixing bracket by the horizontal movement of the pulling gear. Since the force of the pulling gear does not act directly in the vertical direction, the deformation of the headrest fixing bracket can be prevented compared with the transmission method, and the yield rate is improved, thereby improving the production efficiency of automobile headrests.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile headrest production, and in particular relates to a tool for pulling teeth of a headrest fixing bracket. Background Art

[0002] The car headrest is a driving comfort configuration and safety protection product. When a traffic accident occurs, the huge impact force generated by the collision is all squeezed on the fragile neck, which is likely to injure the spine of the driver and passengers. In severe cases, it may even cause problems with the nervous system, leading to paralysis, or even life-threatening. With the existence of a car headrest, it can effectively buffer the huge instantaneous impact force when an accident occurs, thereby protecting the fragile cervical spine and reducing the chance of neck injury. Car headrests are mainly divided into two categories, one is non-adjustable and the other is adjustable. Adjustable car headrests are further divided into manually adjustable and automatically adjustable. The manually adjustable type can only be adjusted in one direction of height, while the automatically adjustable type can be automatically adjusted in two-dimensional directions.

[0003] The height adjustment of the adjustable headrest is mainly completed by the slots opened on the headrest bracket. In order to reduce costs, the fixing brackets of the current automobile headrests are mostly hollow structures. When the slots are opened on the surface of the headrest fixing bracket, the traditional method will cause the hollow headrest fixing bracket to deform, greatly reducing the yield rate, thereby reducing the production efficiency of the automobile headrest.

[0004] To this end, we propose a headrest fixing bracket tooth pulling tool to solve the problems existing in the prior art, so that the yield rate of the headrest fixing bracket is improved, thereby improving the production efficiency of automobile headrests. Summary of the invention

[0005] The object of the present invention is to provide a tool for pulling teeth of a headrest fixing bracket, so as to solve the problem in the prior art that the headrest fixing bracket is easily deformed during slotting, thereby resulting in a low yield rate of the headrest fixing bracket.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a tool for pulling teeth of a headrest fixing bracket, comprising a tool body, a workbench and a connecting plate, a cavity is opened inside the tool body, the cavity is provided with three groups, the inner wall of the cavity is integrally formed with two groups of ribs, the two groups of ribs are symmetrically distributed on the inner wall of the cavity, the bottom surfaces of the two groups of ribs are opened with first grooves, the first grooves are set as an arc surface structure, a fixed shaft is welded on the inner wall of the cavity, the fixed shaft is engaged with the inside of the two groups of first grooves, a pulling gear is fixedly installed on the outer wall of the fixed shaft, the pulling gear is provided with three groups, the three groups of pulling gears are equidistantly distributed on the surface of the fixed shaft, the pulling gear between the two groups of pulling gears is set between the two groups of ribs, and the remaining two groups of pulling gears are respectively set between the ribs and the inner wall of the cavity;

[0007] A receiving groove is provided on the surface of the workbench, a second arc groove and a second groove are provided at the bottom of the receiving groove, a fixing seat is fixedly installed at the bottom of the connecting plate, a first arc groove matching the second arc groove is provided at the bottom of the fixing seat, and a processing groove is provided at the bottom of the second arc groove.

[0008] Preferably, the accommodating groove, the fixing seat and the second arc-shaped groove are of inclined design, and the angle between the accommodating groove, the fixing seat and the second arc-shaped groove and the side edge where the second groove is located is 75°.

[0009] Preferably, the width of the fixing seat is the same as the width of the receiving groove, and the fixing seat can be engaged with the inside of the receiving groove.

[0010] Preferably, the second groove is configured as a square groove, and the second arc groove and the second groove are connected to each other.

[0011] Preferably, the pulling gear is arranged as a truncated cone structure, and the three groups of pulling gears are arranged in the same direction.

[0012] Preferably, the distance between the side of the pulling gear and the top of the tool body is 4 mm to 5 mm.

[0013] Preferably, a movable channel is opened on the surface of the workbench, and the tool body is movably connected to the inside of the movable channel.

[0014] Preferably, four groups of threaded holes are opened on the surface of the connecting plate, and the four groups of threaded holes are symmetrically distributed at the four corners of the connecting plate.

[0015] Technical effects and advantages of the present invention: Compared with the prior art, the present invention provides a headrest fixing bracket tooth pulling tool, which has the following advantages:

[0016] This device drives the synchronous movement of the pulling gear through the horizontal movement of the tool body, fixes the headrest fixing bracket between the fixing seat and the workbench, and opens a slot on the surface of the headrest fixing bracket through the horizontal movement of the pulling gear. Since the force of the pulling gear does not act directly in the vertical direction, compared with the transmission method, it can prevent the headrest fixing bracket from being deformed, improve the yield rate, and thus improve the production efficiency of automobile headrests. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional structural diagram of the tool body of the present invention;

[0018] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 3 For the present invention Figure 2Schematic diagram of the enlarged structure of area A in the middle;

[0020] Figure 4 It is a schematic diagram of the top view structure of the present invention;

[0021] Figure 5 It is a front structural schematic diagram of the pulling gear of the present invention.

[0022] In the figure: 1. tool body; 2. pulling gear; 3. retaining edge; 4. cavity; 5. first groove; 6. workbench; 7. receiving groove; 8. connecting plate; 9. fixed seat; 10. first arc groove; 11. second arc groove; 12. moving channel; 13. fixed shaft; 14. second groove; 15. processing groove. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying 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, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] The present invention provides Figure 1-5 A headrest fixing bracket tooth pulling tool shown in the figure, a headrest fixing bracket tooth pulling tool, comprises a tool body 1, a workbench 6 and a connecting plate 8;

[0025] A cavity 4 is provided inside the tool body 1, and the cavity 4 is provided with three groups. Two groups of flanges 3 are integrally formed on the inner wall of the cavity 4, and the two groups of flanges 3 are symmetrically distributed on the inner wall of the cavity 4. A first groove 5 is provided on the bottom surface of the two groups of flanges 3, and the first groove 5 is provided with an arc surface structure. A fixed shaft 13 is welded on the inner wall of the cavity 4, and the fixed shaft 13 is engaged with the inside of the two groups of first grooves 5. A pulling gear 2 is fixedly installed on the outer wall of the fixed shaft 13, and three groups of pulling gears 2 are provided. The three groups of pulling gears 2 are equidistantly distributed on the surface of the fixed shaft 13. The pulling gear 2 between the two groups of pulling gears 2 is provided between the two groups of flanges 3, and the remaining two groups of pulling gears 2 are respectively provided between the flanges 3 and the inner wall of the cavity 4, ensuring that six groups of pulling gears 2 are provided inside each group of cavities 4, and each group of cavities 4 is divided into three areas of equal area by two groups of flanges 3, and each group of areas contains two groups of pulling gears 2;

[0026] The surface of the workbench 6 is provided with a receiving groove 7, the bottom of the receiving groove 7 is provided with a second arc groove 11 and a second groove 14, a fixing seat 9 is fixedly installed at the bottom of the connecting plate 8, a first arc groove 10 matching the second arc groove 11 is provided at the bottom of the fixing seat 9, a processing groove 15 is provided at the bottom of the second arc groove 11, a headrest fixing bracket is placed inside the second arc groove 11, the connecting plate 8 is driven downward by the cylinder, and the fixing seat 9 is driven to move synchronously when the connecting plate 8 moves downward, when the fixing seat 9 is engaged with the inside of the receiving groove 7, the headrest fixing bracket is fixed by the second arc groove 11 and the first arc groove 10 at the bottom of the fixing seat 9, and when the tool body 1 moves inside the moving channel 12, the pulling gear 2 can groove the headrest fixing bracket by rolling through the processing groove 15;

[0027] The receiving groove 7, the fixing seat 9 and the second arc groove 11 are of inclined design. The angle between the receiving groove 7, the fixing seat 9 and the second arc groove 11 and the side edge where the second groove 14 is located is 75°. After the headrest fixing bracket is placed inside the second arc groove 11, the angle between the headrest fixing bracket and the side edge where the second groove 14 is located is also 75°. At this time, the slot after the headrest fixing bracket is slotted is also of inclined design, so as to meet the needs of specific types of automobile headrests.

[0028] The width of the fixing seat 9 is the same as that of the receiving groove 7. The fixing seat 9 can be engaged with the inside of the receiving groove 7. After the fixing seat 9 is engaged with the inside of the receiving groove 7, the first arc groove 10 and the second arc groove 11 can be closed, so as to fix the headrest fixing bracket, and prevent the headrest fixing bracket from relatively rotating when the slot is opened on the surface of the headrest fixing bracket, thereby making it impossible to open the slot;

[0029] The second groove 14 is configured as a square groove, the second arc groove 11 and the second groove 14 are connected to each other, and the second groove 14 facilitates the removal of the headrest fixing bracket;

[0030] The pull gear 2 is set to a truncated cone structure, and three groups of pull gears 2 are set in the same direction. The distance between the side of the pull gear 2 and the top of the tool body 1 is 4mm to 5mm. The tool body 1 moves inside the moving channel 12, so that the pull gear 2 can move accordingly, and a groove is opened on the surface of the headrest fixing bracket through the side of the pull gear 2. The depth of the groove is the same as the distance from the side of the pull gear 2 to the top of the tool body 1, and the distance between the slots opened in two adjacent groups is the same;

[0031] A moving channel 12 is provided on the surface of the workbench 6, and the tool body 1 is movably connected to the inside of the moving channel 12. The tool body 1 can freely enter and exit the inside of the workbench 6 through the moving channel 12, thereby realizing the opening of a card slot on the surface of the headrest fixing bracket;

[0032] Four groups of threaded holes are provided on the surface of the connecting plate 8, and the four groups of threaded holes are symmetrically distributed at the four corners of the connecting plate 8. The threaded holes facilitate the connection between the connecting plate 8 and the cylinder. The threaded connection has high strength, simple structure, and is easy to load and unload.

[0033] Working principle: When in use, place the headrest fixing bracket on the surface of the second arc groove 11, fix the connecting plate 8 on the output end of the cylinder, and control the connecting plate 8 to move downward by the cylinder. When the connecting plate 8 moves downward, it drives the fixing seat 9 to move synchronously. When the fixing seat 9 is engaged with the inside of the accommodating groove 7, the headrest fixing bracket is fixed by the second arc groove 11 and the first arc groove 10 at the bottom of the fixing seat 9, and then the tool body 1 is driven to move inside the moving channel 12 by another group of cylinders. As the tool body 1 moves, the pulling gear 2 inside the tool body 1 moves synchronously therewith, and the processing groove 15 at the bottom of the second arc groove 11 exposes the bottom of the headrest fixing bracket to the inside of the moving channel 12. As the tool body 1 moves back and forth, the pulling gear 2 will roll out a slot at the bottom of the headrest fixing bracket, thereby completing the opening of the slot.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for pulling teeth of a headrest fixing bracket, comprising a tool body (1), a workbench (6) and a connecting plate (8), characterized in that: A cavity (4) is provided inside the tool body (1), and the cavity (4) is provided with three groups. Two groups of flanges (3) are integrally formed on the inner wall of the cavity (4), and the two groups of flanges (3) are symmetrically distributed on the inner wall of the cavity (4). A first groove (5) is provided on the bottom surface of the two groups of flanges (3), and the first groove (5) is provided with an arc surface structure. A fixed shaft (13) is welded to the inner wall of the cavity (4), and the fixed shaft (13) is engaged with the inside of the two groups of first grooves (5). A pulling gear (2) is fixedly installed on the outer wall of the fixed shaft (13), and the pulling gear (2) is provided with three groups. The three groups of pulling gears (2) are equidistantly distributed on the surface of the fixed shaft (13). The pulling gear (2) between the two groups of pulling gears (2) is provided between the two groups of flanges (3), and the remaining two groups of pulling gears (2) are respectively provided between the flanges (3) and the inner wall of the cavity (4); The surface of the workbench (6) is provided with a receiving groove (7), the bottom of the receiving groove (7) is provided with a second arc-shaped groove (11) and a second groove (14), the bottom of the connecting plate (8) is fixedly mounted with a fixing seat (9), the bottom of the fixing seat (9) is provided with a first arc-shaped groove (10) matching the second arc-shaped groove (11), and the bottom of the second arc-shaped groove (11) is provided with a processing groove (15).

2. The headrest fixing bracket tooth pulling tool according to claim 1, characterized in that: The receiving groove (7), the fixing seat (9) and the second arc-shaped groove (11) are of inclined design, and the angle between the receiving groove (7), the fixing seat (9) and the second arc-shaped groove (11) and the side edge where the second groove (14) is located is 75°.

3. The headrest fixing bracket tooth pulling tool according to claim 2, characterized in that: The width of the fixing seat (9) is the same as the width of the accommodating groove (7), and the fixing seat (9) can be engaged inside the accommodating groove (7).

4. The tool for pulling teeth of a headrest fixing bracket according to claim 1, characterized in that: The second groove (14) is configured as a square groove, and the second arc groove (11) and the second groove (14) are connected to each other.

5. The tool for pulling teeth of a headrest fixing bracket according to claim 1, characterized in that: The pulling gear (2) is arranged as a truncated cone structure, and three groups of the pulling gears (2) are arranged in the same direction.

6. The headrest fixing bracket tooth pulling tool according to claim 5, characterized in that: The distance between the side of the pulling gear (2) and the top of the tool body (1) is 4 mm to 5 mm.

7. The tool for pulling teeth of a headrest fixing bracket according to claim 1, characterized in that: A moving channel (12) is provided on the surface of the workbench (6), and the tool body (1) is movably connected to the inside of the moving channel (12).

8. The tool for pulling teeth of a headrest fixing bracket according to claim 1, characterized in that: Four groups of threaded holes are provided on the surface of the connecting plate (8), and the four groups of threaded holes are symmetrically distributed at the four corners of the connecting plate (8).

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