An automatic installation machine for processing screws of automobile headrests

Abstract

The present invention relates to the technical field of screw installation, and specifically to an automatic screw installation machine for processing automobile headrests, comprising a processing table, a positioning block is fixedly connected to the upper end of the processing table, a limiting plate is provided at the side end of the positioning block, a limiting groove is provided at the upper end of the limiting plate, a guide rail is fixedly connected to the side end of the processing table, a support frame is provided at the side end of the guide rail, a screw positioning head is fixedly connected to the lower end of the support frame, a connecting hole is provided in the middle of the screw positioning head, a threaded sleeve is threadedly connected to the lower end of the connecting hole, a positioning sheet is provided in the middle of the threaded sleeve, a connecting sleeve is slidably connected to the middle of the connecting hole, a clamping groove is provided in the middle of the connecting sleeve, an angle detection ball is provided in the clamping groove, a fixing column is fixedly connected to the middle of the angle detection ball, a power rod is provided at the upper end of the screw positioning head, and the lower end of the power rod is clamped with the fixing column. The present invention can perform detection when installing the screws, so as to determine whether the screw installation angle is qualified, thereby ensuring the yield rate of the headrest.

Description

Technical Field

[0001] The invention relates to the technical field of screw installation, in particular to an automatic screw installation machine for processing automobile headrests. Background Art

[0002] The automobile industry has become a pillar industry in my country, and automobiles are gradually becoming popular in my country. In order to make passengers more comfortable, headrests are set above the seats, and the position of the headrests is adjusted to adapt to the sitting posture and driving habits of different people. When processing the headrest, a screw installation machine is used to fix the screws, so that the headrest is connected and fixed to various parts. However, threaded holes are set on the parts before installing the screws. In order to ensure safety, most of the parts are plastic structures. When setting the threaded holes, the taps will rub against the plastic quickly, which will generate a lot of heat. Plastics have poor thermal conductivity due to their own material properties. When the tap is detached, the threaded hole will deform to a certain extent, causing the axis of the threaded hole to shift. The existing screw installation machine lacks a threaded hole detection mechanism. When installing the screws, the screws are only inserted into the threaded holes, and then the screws are driven to rotate and install through the power rod. When the threaded holes are deformed, the screws will be dislocated during installation, and in serious cases, they will even drill through the parts. Summary of the invention

[0003] The object of the present invention is to provide an automatic screw installation machine for processing automobile headrests to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic installation machine for processing screws of automobile headrests, comprising a processing table, a positioning block is fixedly connected to the upper end of the processing table, a limiting plate is provided at the side end of the positioning block, a limiting groove is provided at the upper end of the limiting plate, a guide rail is fixedly connected to the side end of the processing table, a support frame is provided at the side end of the guide rail, a screw positioning head is fixedly connected to the lower end of the support frame, a connecting hole is provided in the middle of the screw positioning head, a threaded sleeve is threadedly connected to the lower end of the connecting hole, a positioning piece is provided in the middle of the threaded sleeve, a connecting sleeve is slidably connected to the middle of the connecting hole, a clamping groove is provided in the middle of the connecting sleeve, an angle detection ball is provided in the clamping groove, and the angle A fixed column is fixedly connected in the middle of the detection ball, a power rod is provided at the upper end of the screw positioning head, and the lower end of the power rod is clamped with the fixed column. An angle detection plate is fixedly connected to the inner wall of the connecting sleeve, and an angle detection mechanism is slidably connected to the top of the angle detection plate. The angle detection mechanism is composed of a detection head, a deformation sheet, a detection column and an extrusion spring. A plurality of offset detection mechanisms are provided in the middle of the angle detection plate, and the offset detection mechanism is composed of a conductive tube, a conductive column, a reset spring and a conductive head. A screw delivery tube is plugged into the left side of the screw positioning head, and the screw delivery tube is tilted. The screw delivery tube is connected to the connecting hole, and a plug-in hole is provided in the middle of the angle detection plate.

[0005] Preferably, the positioning piece is a fan-shaped structure, two positioning pieces are provided, the upper end of the positioning piece is fixedly connected to the inner wall of the threaded sleeve, the two positioning pieces form a funnel structure, the inner wall of the positioning piece is coated with a wear-resistant layer, and the positioning piece is an elastic iron sheet.

[0006] Preferably, the side wall of the threaded sleeve is an L-shaped structure, a support plate is fixedly connected to the inner wall of the threaded sleeve, the support plate is an arc-shaped structure, the side end of the support plate abuts against the outer wall of the positioning plate, and the support plate is an elastic iron sheet.

[0007] Preferably, eight detection heads are provided, and the detection heads are arranged in a ring with a fixed column as the center, the top of the detection head abuts against the side end of the fixed column, the lower end of the deformation sheet is fixedly connected to the detection head, the upper end of the deformation sheet is fixedly connected to the inner wall of the connecting sleeve, the deformation sheet is an elastic iron sheet, and the middle of the deformation sheet is an arc structure.

[0008] Preferably, one end of the detection column is fixedly connected to the detection head, the other end of the detection column is plugged into the plug hole, and the extrusion spring is located between the side end of the detection head and the angle detection plate.

[0009] Preferably, a plurality of sliding grooves are provided in the middle of the angle detection plate, the lower end of the conductive head is located in the plug hole, the upper end of the conductive head is slidably connected in the sliding groove, and the two ends of the reset spring are respectively fixedly connected to the conductive head and the inner wall of the sliding groove.

[0010] Preferably, the conductive tube is fixedly connected in the angle detection plate, the conductive tube is connected to a power supply, an indicator light is provided at the connection between the conductive tube and the power supply, the upper end of the conductive column is inserted into the conductive tube, and the lower end of the conductive column is fixedly connected to a conductive head.

[0011] Preferably, a detection groove is provided at the upper end of the detection column, a conductive sheet is embedded in the detection groove, the conductive sheet is connected to a power supply, the bottom of the detection groove is an arc-shaped structure, and the lower end of the detection head is an arc-shaped structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The axis deviation of the threaded hole can be detected when the screw is installed. When the screw is offset, the screw will drive the fixed column and the angle detection ball to rotate. When the fixed column rotates, it will squeeze the detection head, thereby pushing the detection head to move, so as to determine whether the threaded hole and the installed screw are offset;

[0014] 2. When the detection column moves in the plug hole, the detection slot is moved to the conductive heads at different positions. When the conductive heads at different positions are connected to the detection slot, the circuit is connected. The position of the detection head is used to determine whether the threaded hole is qualified and whether it is within the error range, thereby determining whether the quality of the headrest is qualified and ensuring the yield rate of the headrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Machine for installing screws for car headrests.

[0016] Figure 2 This is a schematic diagram of the internal structure connection of the screw positioning head.

[0017] Figure 3 This is a schematic diagram of the internal connections of the connecting sleeve.

[0018] Figure 4 This is an enlarged schematic diagram of point A.

[0019] In the figure: 1 processing table, 2 positioning block, 3 limit plate, 4 guide rail, 5 screw positioning head, 6 support frame, 7 screw delivery pipe, 8 connecting sleeve, 9 power rod, 10 threaded sleeve, 11 positioning plate, 12 support plate, 13 clamping groove, 14 angle detection ball, 15 fixing column, 16 angle detection plate, 17 plug-in hole, 18 angle detection mechanism, 181 detection head, 182 deformation sheet, 183 detection column, 184 extrusion spring, 19 offset detection mechanism, 191 conductive tube, 192 conductive column, 193 reset spring, 194 conductive head, 20 detection groove, 21 conductive sheet. DETAILED DESCRIPTION

[0020] In order to deepen the understanding and recognition of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described and introduced in combination with the drawings 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, and are not intended to limit the embodiments in any form. 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.

[0021] See also Figure 1-4 The present invention provides a technical solution: an automatic installation machine for processing screws of an automobile headrest, comprising a processing table 1, a positioning block 2 is fixedly connected to the upper end of the processing table 1, a limiting plate 3 is provided at the side end of the positioning block 2, a limiting groove is provided at the upper end of the limiting plate 3, and the two support rods of the headrest are positioned, so as to position and place the headrest, thereby ensuring the installation of subsequent screws, a guide rail 4 is fixedly connected to the side end of the processing table 1, a support frame 6 is provided at the side end of the guide rail 4, a screw positioning head 5 is fixedly connected to the lower end of the support frame 6, a connecting hole is provided in the middle of the screw positioning head 5, a threaded sleeve 10 is threadedly connected to the lower end of the connecting hole, a positioning piece 11 is provided in the middle of the threaded sleeve 10, a connecting sleeve 8 is slidably connected in the middle of the connecting hole, a clamping groove 13 is provided in the middle of the connecting sleeve 8, an angle detection ball 14 is provided in the clamping groove 13, a fixing column 15 is fixedly connected in the middle of the angle detection ball 14, a power rod 9 is provided at the upper end of the screw positioning head 5, and the lower end of the power rod 9 and the fixing column 15 The angle detection plate 16 is fixedly connected to the inner wall of the connecting sleeve 8, and the top of the angle detection plate 16 is slidably connected to the angle detection mechanism 18, which is composed of a detection head 181, a deformation sheet 182, a detection column 183 and an extrusion spring 184. A plurality of offset detection mechanisms 19 are arranged in the middle of the angle detection plate 16, and the offset detection mechanism 19 is composed of a conductive tube 191, a conductive column 192, a reset spring 193 and a conductive head 194. A screw delivery tube 7 is inserted on the left side of the screw positioning head 5, and the screw delivery tube 7 is tilted. The screw delivery tube 7 is connected to the connecting hole, and a plug-in hole 17 is arranged in the middle of the angle detection plate 16. When the headrest is placed, the support frame 6 moves along the guide rail 4, aligns the screw positioning head 5 with the screw hole of the headrest, and the screw reaches the screw positioning head 5 through the screw delivery tube 7, and then moves to the positioning sheet 11, so that the screw is aligned with the threaded hole, and the screw is driven to rotate by the power rod for installation.

[0022] The positioning piece 11 is a fan-shaped structure, and there are two positioning pieces 11. The upper end of the positioning piece 11 is fixedly connected to the inner wall of the threaded sleeve 10, and the two positioning pieces 11 form a funnel structure. The inner wall of the positioning piece 11 is coated with a wear-resistant layer. The positioning piece 11 is an elastic iron sheet, and the side wall of the threaded sleeve 10 is an L-shaped structure. A supporting piece 12 is fixedly connected to the inner wall of the threaded sleeve 10. The supporting piece 12 is an arc structure, and the side end of the supporting piece 12 abuts against the outer wall of the positioning piece 11. The supporting piece 12 is an elastic iron sheet. The two positioning pieces 11 are used in conjunction with each other to guide and position the arriving screw. When the screw is installed, the screw squeezes the positioning piece 11 to deform the positioning piece 11 so that the screw can be separated from the screw positioning head 5. The supporting piece 12 supports the positioning piece 11 and at the same time increases the structural strength of the positioning piece 11 to avoid deformation of the positioning piece 11 after repeated use, making it impossible to position the screw.

[0023] There are eight detection heads 181, which are arranged in a ring with the fixed column 15 as the center. The top of the detection head 181 is against the side end of the fixed column 15, the lower end of the deformation sheet 182 is fixedly connected to the detection head 181, and the upper end of the deformation sheet 182 is fixedly connected to the inner wall of the connecting sleeve 8. The deformation sheet 182 is an elastic iron sheet, and the middle of the deformation sheet 182 is an arc structure. One end of the detection column 183 is fixedly connected to the detection head 181, and the other end of the detection column 183 is inserted into the plug hole 17. The extrusion spring 184 is located between the side end of the detection head 181 and the angle detection plate 16. When the axis of the threaded hole is offset, the fixed column 15 and the angle detection ball 14 will rotate when the screw is installed, and the fixed column 15 will squeeze the detection head 181. When the detection head 181 moves, it will cause the deformation sheet 182 and the extrusion spring 184 to deform and accumulate force. At the same time, the top of the detection column 183 moves in the plug hole 17.

[0024] A plurality of sliding grooves are provided in the middle of the angle detection plate 16, the lower end of the conductive head 194 is located in the plug hole 17, the upper end of the conductive head 194 is slidably connected in the sliding groove, the two ends of the reset spring 193 are respectively fixedly connected to the conductive head 194 and the inner wall of the sliding groove, the conductive cylinder 191 is fixedly connected in the angle detection plate 16, the conductive cylinder 191 is connected to the power supply, and an indicator light is provided at the connection between the conductive cylinder 191 and the power supply, the upper end of the conductive column 192 is plugged into the conductive cylinder 191, and the lower end of the conductive column 192 is fixedly connected to the conductive head 194, the upper end of the detection column 183 is provided with a detection groove 20, and a conductive sheet 21 is embedded in the detection groove 20, The conductive sheet 21 is connected to the power supply, the bottom of the detection slot 20 is an arc-shaped structure, the lower end of the detection head 181 is an arc-shaped structure, and when the detection column 181 moves, the detection column 181 will lift the conductive head 194, and the detection slot 20 will move to the conductive head 194 at different positions. When the conductive head 194 is snapped into the detection slot 20, the conductive head 194 will contact the conductive sheet 21, thereby connecting the circuit, and determining the axis offset angle of the threaded hole through the position of the conductive head 194, thereby determining whether the threaded hole is qualified and whether it will affect the quality of the headrest, thereby selecting unqualified headrests and ensuring the quality of the headrests.

[0025] Although the embodiments of the present invention have been shown and described, it should be emphasized that the above description is only an introduction and description of the use of the embodiments of the present invention, and does not limit the present invention in any form. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic screw installation machine for automobile headrest processing, comprising a processing table (1), characterized in that: The upper end of the processing table (1) is fixedly connected with a positioning block (2), the side end of the positioning block (2) is provided with a limiting plate (3), the upper end of the limiting plate (3) is provided with a limiting groove, the side end of the processing table (1) is fixedly connected with a guide rail (4), the side end of the guide rail (4) is provided with a support frame (6), the lower end of the support frame (6) is fixedly connected with a screw positioning head (5), a connecting hole is provided in the middle of the screw positioning head (5), a threaded sleeve (10) is threadedly connected at the lower end of the connecting hole, a positioning sheet (11) is provided in the middle of the threaded sleeve (10), a connecting sleeve (8) is slidably connected in the middle of the connecting hole, a clamping groove (13) is provided in the middle of the connecting sleeve (8), an angle detection ball (14) is provided in the clamping groove (13), a fixing column (15) is fixedly connected in the middle of the angle detection ball (14), and a power rod (9) is provided at the upper end of the screw positioning head (5). The lower end of the power rod (9) is clamped with the fixed column (15), the inner wall of the connecting sleeve (8) is fixedly connected with an angle detection plate (16), the top of the angle detection plate (16) is slidably connected with an angle detection mechanism (18), the angle detection mechanism (18) is composed of a detection head (181), a deformation sheet (182), a detection column (183) and a compression spring (184), a plurality of offset detection mechanisms (19) are arranged in the middle of the angle detection plate (16), the offset detection mechanism (19) is composed of a conductive tube (191), a conductive column (192), a reset spring (193) and a conductive head (194), a screw delivery tube (7) is plugged into the left side of the screw positioning head (5), the screw delivery tube (7) is tilted, the screw delivery tube (7) is connected to the connection hole, and a plug-in hole (17) is arranged in the middle of the angle detection plate (16).

2. The automatic screw installation machine for automobile headrest according to claim 1 is characterized in that: The positioning piece (11) is a fan-shaped structure. Two positioning pieces (11) are provided. The upper end of the positioning piece (11) is fixedly connected to the inner wall of the threaded sleeve (10). The two positioning pieces (11) form a funnel structure. The inner wall of the positioning piece (11) is coated with a wear-resistant layer. The positioning piece (11) is an elastic iron sheet.

3. The automatic screw installation machine for automobile headrest according to claim 1 is characterized in that: The side wall of the threaded sleeve (10) is an L-shaped structure. A support sheet (12) is fixedly connected to the inner wall of the threaded sleeve (10). The support sheet (12) is an arc-shaped structure. The side end of the support sheet (12) abuts against the outer wall of the positioning sheet (11). The support sheet (12) is an elastic iron sheet.

4. The automatic screw installation machine for automobile headrest according to claim 1 is characterized in that: The detection heads (181) are provided with eight, and the detection heads (181) are arranged in a ring with the fixed column (15) as the center, the top end of the detection head (181) abuts against the side end of the fixed column (15), the lower end of the deformation sheet (182) is fixedly connected to the detection head (181), the upper end of the deformation sheet (182) is fixedly connected to the inner wall of the connecting sleeve (8), the deformation sheet (182) is an elastic iron sheet, and the middle of the deformation sheet (182) is an arc structure.

5. The automatic screw installation machine for automobile headrest according to claim 1 is characterized in that: One end of the detection column (183) is fixedly connected to the detection head (181), the other end of the detection column (183) is plugged into the plug hole (17), and the compression spring (184) is located between the side end of the detection head (181) and the angle detection plate (16).

6. The automatic screw installation machine for automobile headrest according to claim 1, characterized in that: A plurality of sliding grooves are provided in the middle of the angle detection plate (16); the lower end of the conductive head (194) is located in the plug hole (17); the upper end of the conductive head (194) is slidably connected in the sliding groove; and the two ends of the reset spring (193) are respectively fixedly connected to the conductive head (194) and the inner wall of the sliding groove.

7. The automatic screw installation machine for automobile headrest according to claim 1, characterized in that: The conductive tube (191) is fixedly connected in the angle detection plate (16), the conductive tube (191) is connected to a power source, an indicator light is provided at the connection between the conductive tube (191) and the power source, the upper end of the conductive column (192) is inserted into the conductive tube (191), and the lower end of the conductive column (192) is fixedly connected to a conductive head (194).

8. The automatic screw installation machine for automobile headrest according to claim 1, characterized in that: The upper end of the detection column (183) is provided with a detection groove (20), a conductive sheet (21) is embedded in the detection groove (20), the conductive sheet (21) is connected to a power source, the bottom of the detection groove (20) is an arc-shaped structure, and the lower end of the detection head (181) is an arc-shaped structure.

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