Head fixed bracket gear broaching machine

Abstract

The present invention discloses a tooth-drawing machine for a head fixing bracket, including a mounting bracket, a lapped platform is welded on the surface of the mounting bracket, a second positioning mechanism is installed on the surface of the mounting bracket, a first positioning mechanism is overlapped on the top of the second positioning mechanism, a first hydraulic cylinder is installed on the top surface of the mounting bracket, an output end of the first hydraulic cylinder is connected to a mounting seat through a first piston rod and bolts, the mounting seat is connected to the second positioning mechanism, a second hydraulic cylinder is assembled on one side surface of the lapped platform, an output end of the second hydraulic cylinder is fixed to a connecting piece through a second piston rod and bolts, and a tooth-drawing mechanism is provided on one side of the connecting piece through bolts. The present invention optimizes the tooth-drawing mechanism, cooperates with the positioning mechanism to perform lateral extrusion and slotting, which can effectively distinguish it from the traditional placement and direct pressing for slotting, and avoids the situation that the headrest fixing bracket is easily deformed during the slotting work.

Description

Technical Field

[0001] The invention belongs to the field of automobile parts processing, and in particular relates to a head fixing bracket gear broaching machine. Background Art

[0002] The car headrest is a driving comfort configuration product and a safety protection product. When a vehicle rear-ends, the human body will fall backwards due to inertia. At this time, the pressure of the vehicle's acceleration or deceleration is concentrated on the human body's fragile neck and head, and the headrest acts as a buffer to protect the human head.

[0003] In the production process of adjustable car headrests, solid or hollow metal rods are usually used for tooth mark processing to complete the work of grooving the surface of the headrest's fixed bracket. Grooving is performed sequentially only by relying on the positioning device and the hydraulic mechanism. During the continuous working process of a large amount of raw materials, the fixed bracket is easily deformed, thereby affecting the yield rate of the finished product. Summary of the invention

[0004] The purpose of the present invention is to provide a head fixing bracket tooth drawing machine, optimize the tooth drawing mechanism, and cooperate with the positioning mechanism to perform lateral extrusion grooving work, which can effectively distinguish it from the traditional direct pressing for grooving, avoid the headrest fixing bracket from being easily deformed during the grooving work, and solve the problems in the prior art raised in the above background technology.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A head fixed bracket gear broaching machine comprises a mounting frame, a lap platform is welded on the surface of the mounting frame, a second positioning mechanism is mounted on the surface of the mounting frame, a first positioning mechanism is overlapped on the top of the second positioning mechanism, a first hydraulic cylinder is mounted on the top surface of the mounting frame, an output end of the first hydraulic cylinder is connected to a mounting seat through a first piston rod and a bolt, and the mounting seat is connected to the first positioning mechanism;

[0007] A second hydraulic cylinder is mounted on one side surface of the overlapping platform, and an output end of the second hydraulic cylinder is fixed with a connecting piece through a second piston rod in combination with bolts, and a tooth pulling mechanism is provided on one side of the connecting piece through bolts.

[0008] Preferably, the first positioning mechanism includes an upper mold, a mounting hole, a limit block and two first arc grooves, the top surface of the upper mold is evenly and sequentially provided with mounting holes, the upper mold is fixedly connected to the lower surface of the mounting seat through the mounting holes, the bottom surface of the upper mold is provided with a limit block, and the surface of the upper mold at the limit block is provided with two first arc grooves.

[0009] Preferably, the limit block is an integrated molding structure on the bottom surface of the upper mold.

[0010] Preferably, the second positioning mechanism includes a lower mold, an inner slide, a limiting groove, two second arc grooves and a first opening groove, the inner slide is provided inside the lower mold, the limiting groove is provided on the surface of the lower mold, and two second arc grooves are provided on the surface of the lower mold at the limiting groove, the inner wall surfaces of the two second arc grooves are provided with a first opening groove, and the two first opening grooves are connected to the inner slide.

[0011] Preferably, the lower mold is plugged into a limiting block arranged on the surface of the upper mold through a limiting groove, and two second arc grooves formed on the surface of the limiting groove correspond to two first arc grooves formed on the limiting block respectively.

[0012] Preferably, the tooth pulling mechanism includes a tool holder, a second opening groove, a pulling gear and a connecting shaft. The tool holder is movably connected to an inner slideway provided in the lower mold. An inner groove is provided in the tool holder. Second opening grooves are uniformly provided on the surface of the tool holder in sequence. Connecting shafts are uniformly installed on the inner wall of the inner groove of the tool holder in sequence, and pulling gears are uniformly inserted on the connecting shafts in sequence.

[0013] Preferably, the surface of the pulling gear protrudes from the second opening groove.

[0014] Technical effects and advantages of the present invention: The head fixed bracket gear broaching machine proposed by the present invention has the following advantages compared with the prior art:

[0015] 1. The present invention optimizes the positioning mechanism of the headrest fixing bracket, uses the upper and lower molds to cooperate with each other to form an integral fixing structure, and cooperates with the hydraulic cylinder to perform compression, and can use the first arc groove and the second arc groove in the upper and lower molds to cooperate to fix the fixing bracket, and use the limit block and the limit groove to cooperate to form a good alignment splicing structure, which can prevent the first arc groove and the second arc groove from being offset due to external collision, thereby ensuring the stability of the processing work;

[0016] 2. Optimize the tooth-pulling mechanism, add a connecting shaft and a pulling gear in the tool holder, and cooperate with the hydraulic cylinder and the piston rod to slide and squeeze the tool holder part into the inner slideway of the lower mold, so that the pulling gear can be squeezed and contacted with the bottom of the headrest fixing bracket placed on the lower mold. In this way, each pulling gear can squeeze and rub the local surface of the fixed bracket in turn to complete the tooth-pulling grooving processing effect, which can effectively distinguish it from the traditional direct pressing for grooving, and avoid the deformation of the headrest fixing bracket during the grooving work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2It is a schematic structural diagram of the first positioning mechanism of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the second positioning mechanism of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the tooth-pulling mechanism of the present invention;

[0021] Figure 5 It is a schematic diagram of the connection structure between the connecting shaft and the pulling gear of the present invention;

[0022] Figure 6 It is a schematic diagram of the connection structure between the upper mold, the lower mold and the knife holder of the present invention.

[0023] In the figure: 1. mounting frame; 2. overlapping platform; 3. first positioning mechanism; 31. upper mold; 32. mounting hole; 33. limiting block; 34. first arc groove; 4. second positioning mechanism; 41. lower mold; 42. inner slide; 43. limiting groove; 44. second arc groove; 45. first opening groove; 5. tooth pulling mechanism; 51. tool holder; 52. second opening groove; 53. pulling gear; 54. connecting shaft; 6. mounting seat; 7. first hydraulic cylinder; 8. first piston rod; 9. connecting piece; 10. second hydraulic cylinder; 11. second piston rod. DETAILED DESCRIPTION

[0024] 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.

[0025] The present invention provides Figure 1-6 The head fixed bracket gear drawing machine shown includes a mounting frame 1, a lap platform 2 is welded on the surface of the mounting frame 1, a second positioning mechanism 4 is installed on the surface of the mounting frame 1, a first positioning mechanism 3 is overlapped on the top of the second positioning mechanism 4, a first hydraulic cylinder 7 is installed on the top surface of the mounting frame 1, and the output end of the first hydraulic cylinder 7 is connected to a mounting seat 6 through a first piston rod 8 and bolts, and the mounting seat 6 is connected to the first positioning mechanism 3.

[0026] The first positioning mechanism 3 includes an upper mold 31, a mounting hole 32, a stopper 33 and two first arc-shaped grooves 34. The top surface of the upper mold 31 is uniformly provided with mounting holes 32. The upper mold 31 is fixedly connected to the lower surface of the mounting seat 6 through the mounting holes 32. The bottom surface of the upper mold 31 is provided with a stopper 33. The surface of the upper mold 31 at the stopper 33 is provided with two first arc-shaped grooves 34. The stopper 33 is an integrated molding structure of the bottom surface of the upper mold 31. The mounting hole 32 is used to cooperate with other connecting frames or bolt structures to cooperate and fix with the mounting seat 6, so as to cooperate with the first hydraulic cylinder 7 and the first piston rod 8 for driving. The radius specification of the first arc-shaped groove 34 is the same as the radius of the headrest fixing bracket to be processed, which can effectively fix the position and facilitate the completion of the clamping.

[0027] The second positioning mechanism 4 includes a lower mold 41, an inner slide 42, a limiting groove 43, two second arc grooves 44 and a first opening groove 45. The lower mold 41 is provided with an inner slide 42, and the surface of the lower mold 41 is provided with a limiting groove 43. The surface of the lower mold 41 at the limiting groove 43 is provided with two second arc grooves 44, and the inner wall surfaces of the two second arc grooves 44 are provided with a first opening groove 45. The two first opening grooves 45 are both connected to the inner slide 42, and the first opening groove 45 is provided between the two second arc grooves 44 and the inner slide 42, so that when the headrest fixing bracket is placed, the lower surface of the fixing bracket can be exposed at the first opening groove 45, so that the local surface of the fixing bracket can be in the inner slide 42, so as to cooperate with the subsequent grooving work, and it is easy to adjust manually, and the placement position of the fixing bracket can be changed at any time according to specific conditions and needs, so as to achieve the purpose of adjusting the part to be processed.

[0028] During use, the lower mold 41 is plugged into the limit block 33 set on the surface of the upper mold 31 through the limit groove 43, and the two second arc grooves 44 opened on the surface of the limit groove 43 correspond to the two first arc grooves 34 opened on the limit block 33 respectively, which can more effectively enhance the fixing effect. The limit block 33 and the limit groove 43 cooperate to form a good alignment splicing structure, which can avoid the first arc groove 34 and the second arc groove 44 from being offset by external collisions, thereby ensuring the stability of the processing work.

[0029] A second hydraulic cylinder 10 is assembled on one side surface of the overlapping platform 2, and a connecting piece 9 is fixed to the output end of the second hydraulic cylinder 10 by a second piston rod 11 in cooperation with bolts, and a tooth-pulling mechanism 5 is provided on one side of the connecting piece 9 by bolts; the tooth-pulling mechanism 5 includes a tool holder 51, a second opening groove 52, a pulling gear 53 and a connecting shaft 54, the tool holder 51 is movably connected to an inner slideway 42 provided in the lower mold 41, an inner groove is provided in the tool holder 51, and second opening grooves 52 are uniformly provided on the surface of the tool holder 51 in sequence, and connecting shafts 54 are uniformly installed on the inner wall of the inner groove of the tool holder 51 in sequence, and pulling gears 53 are uniformly inserted on the connecting shaft 54 ​​in sequence, and the surface of the pulling gear 53 protrudes from the second opening groove 52.

[0030] Working principle: When in use, the staff manually places the two headrest fixing brackets to be processed in the two second arc grooves 44 on the lower mold 41, and the lower partial surfaces of the two headrest fixing brackets can be exposed at the first opening groove 45 on the second arc groove 44, so that the surface here is in the inner slide 42 of the lower mold 41, and manually adjust the position of the headrest fixing bracket to determine the position required for processing.

[0031] The first piston rod 8 is driven by the first hydraulic cylinder 7 to push the upper mold 31 downward, so that the limit block 33 at the bottom of the upper mold 31 is plugged into the limit groove 43 on the lower mold 41, and the two first arc grooves 34 at the limit block 33 correspond to the two second arc grooves 44 at the limit groove 43, so that the arc grooves on both sides cooperate to fully limit the position of the two headrest fixing brackets. At this time, the second piston rod 11 is driven by the second hydraulic cylinder 10 to slide and push the knife seat 51 into the inner slide 42 of the lower mold 41. As the knife seat 51 continues to advance, the pull gears 53 at the second opening groove 52 on the surface of the knife seat 51 are squeezed and grooved with the exposed part of the headrest fixing bracket in turn. This structure cooperates with the positioning mechanism to perform lateral extrusion and grooving, which can effectively distinguish it from the traditional placement and direct pressing for grooving, and avoid the deformation of the headrest fixing bracket during the grooving work.

[0032] 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 head fixed bracket gear broaching machine, comprising a mounting bracket (1), characterized in that: A lap platform (2) is welded on the surface of the mounting frame (1), a second positioning mechanism (4) is mounted on the surface of the mounting frame (1), the top of the second positioning mechanism (4) is overlapped with the first positioning mechanism (3), a first hydraulic cylinder (7) is mounted on the top surface of the mounting frame (1), an output end of the first hydraulic cylinder (7) is connected to a mounting seat (6) via a first piston rod (8) and bolts, and the mounting seat (6) is connected to the first positioning mechanism (3); A second hydraulic cylinder (10) is mounted on one side surface of the overlapped platform (2); a connecting piece (9) is fixed to the output end of the second hydraulic cylinder (10) via a second piston rod (11) in cooperation with bolts; a tooth pulling mechanism (5) is provided on one side of the connecting piece (9) in cooperation with bolts; the first positioning mechanism (3) comprises an upper mold (31), a mounting hole (32), a limit block (33) and two first arc-shaped grooves (34); the mounting holes (32) are uniformly opened on the top surface of the upper mold (31); the upper mold (31) is provided with a plurality of first arc-shaped grooves (34); the mounting holes (32) are uniformly opened on the top surface of the upper mold (31); the upper mold (31) is provided with a plurality of first arc-shaped grooves (34); the first arc-shaped grooves (34) are ... The upper mold (31) is fixedly connected with the lower surface of the mounting seat (6), the bottom surface of the upper mold (31) is provided with a limit block (33), and the surface of the upper mold (31) at the limit block (33) is provided with two first arc grooves (34); the second positioning mechanism (4) comprises a lower mold (41), an inner slideway (42), a limit groove (43), two second arc grooves (44) and a first opening groove (45), the interior of the lower mold (41) is provided with an inner slideway (42), the surface of the lower mold (41) is provided with a limit groove (43), and the lower mold (41) is provided with a first opening groove (45). ) has two second arc grooves (44) on the surface at the limit groove (43), and the inner wall surfaces of the two second arc grooves (44) are each provided with a first opening groove (45), and the two first opening grooves (45) are both connected to the inner slideway (42); the lower mold (41) is plugged into the limit block (33) provided on the surface of the upper mold (31) through the limit groove (43), and the two second arc grooves (44) provided on the surface at the limit groove (43) respectively correspond to the two first arc grooves (34) provided on the limit block (33); the tooth pulling mechanism (5 ) comprises a knife seat (51), a second opening groove (52), a pulling gear (53) and a connecting shaft (54); the knife seat (51) is movably connected to an inner slideway (42) provided in a lower mold (41); an inner groove is provided in the knife seat (51); the second opening groove (52) is uniformly provided on the surface of the knife seat (51); connecting shafts (54) are uniformly installed on the inner wall of the inner groove of the knife seat (51); pulling gears (53) are uniformly inserted on the connecting shaft (54); the surface of the pulling gear (53) protrudes from the second opening groove (52).

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