Screw tightening equipment

Abstract

The utility model discloses screw tightening equipment, which belongs to the field of machine tool assembly and comprises a base, a fixing frame and a vertical frame are fixedly connected onto the base, a clamping mechanism and a butt joint mechanism are arranged on the base, the clamping mechanism comprises a first guide rail, a first air cylinder is fixedly connected onto the first guide rail, and a sliding seat is fixedly connected to the output end of the first air cylinder. And the sliding seat is rotationally connected with a rotating seat. The automatic assembling device has the beneficial effects that the clamping mechanism, the butt joint mechanism and the moving mechanism are arranged, a workpiece body can be automatically and rotationally assembled through the clamping mechanism and the butt joint mechanism, and through the arrangement of the X-axis guide rail and the Y-axis guide rail, automatic taking and assembling work of a screw tightening piece and a screw through a taking head and an opening and closing head is achieved; the workpiece body and the screw tightening piece can achieve circumferential multi-workpiece assembling, the automation degree of screw tightening operation is greatly improved, and the assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine tool assembly field especially screw tightening equipment. BACKGROUND

[0002] For the present stage's assembly machine screw tightening technology is long time by manual positioning and manual tightening, this leads to the artificial cost rise also can bring the potential possibility of the artificial error such as screw positioning not in time and screw positioning not accurate, this means the inestimable major threat to property and personnel safety.

[0003] Through the retrieval China patent announcement No. CN215357151U discloses a double gun screw tightening device, the patent includes three axis drive arrangement, automatic nail feeding device, assembly base plate, three axis drive arrangement is fixed on the assembly base plate, the screw seat is fixed on the three axis drive arrangement, the first automatic screw tightening device is fixed on one side of the screw seat, the second automatic screw tightening device is slidably installed on the other side of the screw seat, the diagonal drive arrangement is installed on the screw seat and is connected with the second automatic screw tightening device, the workpiece positioning device is used for installing the workpiece, and the positioning fixing device is installed on the assembly base plate and is used for fixing the workpiece positioning device, the device adopts two electric screwdrivers to carry out diagonal assembly simultaneously, greatly shortens single station beat, improves work efficiency, and the PCB is evenly stressed during screw tightening, will not warp, assembly is stable, product assembly qualification rate is high, improves the utilization rate of three axis system, but the existing screw tightening device, for the assembly work that needs to carry out multiple angle hole positions on the workpiece, often needs manual positioning and installation, it is difficult to guarantee assembly accuracy, needs multiple clamping and manual assembly, affects production efficiency, reduces the progress of screw tightening operation, and the practicality needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model discloses a screw tightening equipment can be provided to solve the above -mentioned problem.

[0005] The utility model discloses a screw tightening equipment can be provided to solve the above -mentioned problem.

[0006] A screw tightening equipment, including base, fixedly connected with the fixed frame and the stand on the base, be provided with the clamping mechanism and the butt joint mechanism on the base, the clamping mechanism includes the first guide rail, fixedly connected with the first cylinder on the first guide rail, the output of first cylinder is fixedly connected with the sliding seat, the sliding seat is slidably connected on the first guide rail, rotatably connected with the rotating seat on the sliding seat, the rotating seat one end is fixedly connected with a plurality of abutment rods, when assembling, the abutment rod away from the one end of rotating seat abuts with workpiece body, and the rotating seat is used for rotating assembly workpiece body;

[0007] The docking mechanism is used for limiting the position of the workpiece body away from one end of the abutting rod, the top of the stand is provided with a moving mechanism, the moving mechanism comprises X-axis guide rails, Y-axis guide rails and vertical sliding rails which are arranged perpendicular to each other in pairs, a connecting seat is slidably connected to the vertical sliding rail, a material taking mechanism and a tightening mechanism are arranged on the connecting seat, a screw supply device is fixedly connected to the fixing frame, and a plurality of screw tightening pieces are placed on the fixing frame before assembly.

[0008] Preferably, the X-axis guide rail is fixedly connected to the top of the stand, an X-axis push cylinder is fixedly connected to the X-axis guide rail, a moving seat is fixedly connected to the output end of the X-axis push cylinder, and the moving seat is slidably connected to the X-axis guide rail; the Y-axis guide rail is fixedly connected to the top of the moving seat, a Y-axis push cylinder is fixedly connected to the Y-axis guide rail, the vertical sliding rail is fixedly connected to the output end of the Y-axis push cylinder, a vertical cylinder is fixedly connected to the vertical sliding rail, and the connecting seat is fixedly connected to the output end of the vertical cylinder.

[0009] Preferably, the material taking mechanism comprises a first lifting cylinder and a first lifting guide rail, the first lifting cylinder and the first lifting guide rail are fixedly connected to the connecting seat, a first lifting seat is fixedly connected to the output end of the first lifting cylinder, the first lifting seat is slidably connected to the first lifting guide rail, a clamping cylinder is fixedly connected to the first lifting seat, two oppositely arranged material taking heads are fixedly connected to the output end of the clamping cylinder, and the material taking heads are used for assembling the plurality of screw tightening pieces to the side surface of the workpiece body.

[0010] Preferably, the tightening mechanism comprises a mounting frame, the mounting frame is fixedly connected to the connecting seat, a second lifting cylinder and a second lifting guide rail are fixedly connected to the mounting frame, a second lifting seat is fixedly connected to the output end of the second lifting cylinder, the second lifting seat is slidably connected to the second lifting guide rail, a screw tightening device is fixedly connected to the second lifting seat, an opening and closing head is arranged at the output end of the screw tightening device, an opening and closing cylinder is fixedly connected to the connecting seat, and the opening and closing cylinder is used for opening and closing the opening and closing head to realize the action of transferring the screw.

[0011] Preferably, a servo motor is fixedly connected to one side of the sliding seat, and the output end of the servo motor is fixedly connected to the rotating seat.

[0012] Preferably, the docking mechanism comprises a second guide rail and a second cylinder, the second guide rail and the second cylinder are fixedly connected to the top of the base, a receiving seat is fixedly connected to the output end of the second cylinder, the receiving seat is slidably connected to the second guide rail, a docking cylinder is rotatably connected to the receiving seat, the docking cylinder cooperates with the abutting rod, and is used for clamping the two ends of the workpiece body.

[0013] Preferably, a limiting edge is arranged at one end of the docking cylinder close to the abutting rod, and the limiting edge is used for clamping the inner wall of one end of the workpiece body.

[0014] The beneficial effect lies in that the clamping mechanism, the docking mechanism and the moving mechanism are arranged, the workpiece body can be automatically rotated and assembled through the arrangement of the clamping mechanism and the docking mechanism, the automatic material taking and assembling operations of the screw tightening piece and the screw are realized through the arrangement of the X-axis guide rail and the Y-axis guide rail, the workpiece body and the screw tightening piece can realize circumferential multi-workpiece assembly, and the automation degree of the screw tightening operation is greatly improved, and the assembly efficiency is improved.

[0015] The additional technical features and advantages of the utility model will be more obvious in the following description, or can be understood through the specific practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the following specific embodiments to explain the utility model, but do not constitute the limitation to the utility model.In the drawings,

[0017] Figure 1 It is the schematic diagram of the screw tightening equipment of the utility model described in a kind of screw;

[0018] Figure 2 It is the front view of the screw tightening equipment of the utility model described in a kind of screw;

[0019] Figure 3 It is the schematic diagram of the clamping mechanism and docking mechanism cooperation of the screw tightening equipment of the utility model described in a kind of screw;

[0020] Figure 4 It is the schematic diagram of the clamping mechanism of the screw tightening equipment of the utility model described in a kind of screw;

[0021] Figure 5 It is the schematic diagram of the docking mechanism of the screw tightening equipment of the utility model described in a kind of screw;

[0022] Figure 6 It is the schematic diagram of the moving mechanism of the screw tightening equipment of the utility model described in a kind of screw;

[0023] Figure 7 It is another angle schematic diagram of the moving mechanism of the screw tightening equipment of the utility model described in a kind of screw;

[0024] Figure 8 It is the structure schematic diagram of the material taking mechanism and tightening mechanism of the screw tightening equipment of the utility model described in a kind of screw.

[0025] The reference signs are explained as follows: 101, base; 102, fixing frame; 103, stand; 201, first guide rail; 202, first air cylinder; 203, sliding seat; 204, rotating seat; 205, abutting rod; 206, servo motor; 301, second guide rail; 302, second air cylinder; 303, bearing seat; 304, butt joint cylinder; 3041, limiting edge; 305, workpiece body; 306, screw tightening piece; 401, X-axis guide rail; 402, X-axis pushing cylinder; 403, moving seat; 404, Y-axis guide rail; 405, Y-axis pushing cylinder; 406, vertical slide rail; 407, vertical air cylinder; 408, connecting seat; 501, first lifting air cylinder; 502, first lifting guide rail; 503, first lifting seat; 504, clamping air cylinder; 505, material taking head; 601, mounting frame; 602, second lifting air cylinder; 603, second lifting guide rail; 604, second lifting seat; 605, screw tightening device; 606, opening and closing head; 607, opening and closing air cylinder; 608, screw supply device. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] The present application will be further described below with reference to the drawings:

[0029] As Figure 1 — Figure 8As shown, a screw tightening device, including a base 101, a fixed frame 102 and a stand 103 are bolted on the base 101, the base 101 is provided with a clamping mechanism and a docking mechanism, the clamping mechanism includes a first guide rail 201, a first cylinder 202 is bolted on the first guide rail 201, the output end of the first cylinder 202 is bolted with a sliding seat 203, the sliding seat 203 is slidingly connected on the first guide rail 201, a rotating seat 204 is rotatably connected on the sliding seat 203, one end of the rotating seat 204 is bolted with a plurality of abutting rods 205, during assembly, the end of the abutting rod 205 away from the rotating seat 204 abuts with a workpiece body 305, the rotating seat 204 is used for rotating assembly of the workpiece body 305, when the workpiece body 305 is assembled, the screw tightening piece 306 needs to be screwed on four installation positions of the workpiece body 305 distributed uniformly in the circumferential direction, the rotating seat 204 and the abutting rod 205 are arranged so that the rotating seat 204 can rotate in the clamped state to realize circumferential multi-station assembly.

[0030] The docking mechanism is used for limiting the end of the workpiece body 305 away from the abutting rod 205, the top of the stand 103 is provided with a moving mechanism, the moving mechanism includes X-axis guide rails 401, Y-axis guide rails 404 and vertical sliding rails 406 arranged in pairs and perpendicular to each other, arranged in pairs and perpendicular to each other, improving the freedom degree of screw tightening piece 306 and screw transfer and assembly, and also improving the assembly accuracy, avoiding the problem of accidental problems caused by assembly out of position when the device is used, the connecting seat 408 is slidingly connected on the vertical sliding rail 406, the connecting seat 408 is provided with a material taking mechanism and a tightening mechanism, the fixed frame 102 is bolted with a screw supply device 608, before assembly, a plurality of screw tightening pieces 306 are placed on the fixed frame 102, the material taking head 505 transfers the screw tightening piece 306 from the fixed frame 102 and clamps it to the workpiece body 305.

[0031] In this embodiment, the X-axis guide rail 401 is bolted on the top of the stand 103, the X-axis guide rail 401 is bolted with an X-axis push cylinder 402, the output end of the X-axis push cylinder 402 is bolted with a moving seat 403, the moving seat 403 is slidingly connected on the X-axis guide rail 401, the Y-axis guide rail 404 is bolted on the top of the moving seat 403, the Y-axis guide rail 404 is bolted with a Y-axis push cylinder 405, the arrangement of the X-axis guide rail 401 and the Y-axis guide rail 404 enables the moving range of the material taking mechanism and the tightening mechanism to cover every position in the plane, improving the applicability of assembly work, the vertical sliding rail 406 is bolted on the output end of the Y-axis push cylinder 405, the vertical sliding rail 406 is bolted with a vertical cylinder 407, the connecting seat 408 is fixedly connected with the output end of the vertical cylinder 407.

[0032] In the embodiment, the taking mechanism comprises a first lifting cylinder 501 and a first lifting guide rail 502, the first lifting cylinder 501 and the first lifting guide rail 502 are connected on the connecting seat 408 through bolts, the output end of the first lifting cylinder 501 is connected with a first lifting seat 503 through bolts, the first lifting seat 503 is slidingly connected on the first lifting guide rail 502, a clamping cylinder 504 is connected on the first lifting seat 503 through bolts, the output end of the clamping cylinder 504 is connected with two oppositely arranged taking heads 505 through bolts, and the taking heads 505 are used for assembling the plurality of screw tightening pieces 306 to the side surface of the workpiece body 305.

[0033] In the embodiment, the tightening mechanism comprises a mounting frame 601, the mounting frame 601 is connected on the connecting seat 408 through bolts, a second lifting cylinder 602 and a second lifting guide rail 603 are connected on the mounting frame 601 through bolts, the output end of the second lifting cylinder 602 is connected with a second lifting seat 604 through bolts, the second lifting seat 604 is slidingly connected on the second lifting guide rail 603, a screw tightening device 605 is connected on the second lifting seat 604 through bolts, the output end of the screw tightening device 605 is provided with an opening and closing head 606, an opening and closing cylinder 607 is connected on the connecting seat 408 through bolts, the opening and closing cylinder 607 is used for opening and closing the opening and closing head 606 to realize the action of transferring the screw, the output end of the screw tightening device 605 is deeply arranged in the opening and closing head 606, and the screw tightening device 605 can move with the opening and closing head 606 in the horizontal plane, when the opening and closing head 606 takes a screw on the screw supply device 608, the output end of the screw tightening device 605 is butted with the head of the screw, so that the screw tightening device 605 can screw the screw into the screw tightening piece 306, and the screw tightening piece 306 is assembled on the workpiece body 305.

[0034] In the embodiment, one side of the sliding seat 203 is connected with a servo motor 206 through bolts, the output end of the servo motor 206 is connected with the rotating seat 204 through a shaft coupling, the servo motor 206 is arranged to rotate the assembly position of the workpiece body 305 to a vertical angle, so that the screw tightening piece 306 and the screw can be installed, and the circumferential multi-station installation requirement of the workpiece body 305 can be met.

[0035] In the embodiment, the docking mechanism comprises the second guide rail 301 and the second air cylinder 302, the second guide rail 301 and the second air cylinder 302 are connected on the top of the base 101 through bolts, the output end of the second air cylinder 302 is connected with the receiving seat 303 through bolts, the receiving seat 303 is slidingly connected on the second guide rail 301, the receiving seat 303 is rotatably connected with the docking barrel 304, the docking barrel 304 cooperates with the abutting rod 205, is used for clamping two ends of the workpiece body 305, one end of the docking barrel 304 close to the abutting rod 205 is provided with the limiting edge 3041, the limiting edge 3041 is used for clamping the inner wall of one end of the workpiece body 305, the docking barrel 304 and the abutting rod 205 clamp two ends of the workpiece body 305, the setting of the limiting edge 3041 effectively avoids the workpiece body 305 from shaking during assembly, and the assembly precision is improved.

[0036] Working principle: when the device is in use, the workpiece body 305 is moved to the base 101, the two ends of the workpiece body 305 are aligned with the abutting rod 205 and the butt cylinder 304, the abutting rod 205 is butt joint into the hole position corresponding to the workpiece body 305, the limiting edge 3041 is butt joint into the inner wall of the other end of the workpiece body 305, the first air cylinder 202 drives the sliding seat 203, so that the abutting rod 205 on the rotating seat 204 abuts against the abutting rod 205, at the same time, the second air cylinder 302 on the other end drives the bearing seat 303, the bearing seat 303 drives the butt cylinder 304 to abut against the workpiece body 305 from the other end, after the fixation of the workpiece body 305 is completed, the worker places the screw tightening piece 306 to be assembled on the top of the fixing frame 102, the screw supply device 608 can automatically output the screw when it is running, so that the head of the screw protrudes out of the hole position, which is convenient for the opening and closing head 606 to clamp, during assembly, the X-axis pushing cylinder 402 and the Y-axis pushing cylinder 405 are linked and matched, the vertical sliding rail 406 is moved to the position above the fixing frame 102, so that the material taking head 505 is located directly above the screw tightening piece 306, then the vertical air cylinder 407 drives the connecting seat 408 to move downward, the connecting seat 408 drives the first lifting air cylinder 501, the first lifting guide rail 502 and the first lifting seat 503 to descend, after the material taking head 505 on the first lifting seat 503 reaches the position on both sides of the placed screw tightening piece 306, the clamping air cylinder 504 tightens the material taking head 505, clamping the screw tightening piece 306, the output end of the first lifting air cylinder 501 and the output end of the vertical air cylinder 407 retract, the X-axis pushing cylinder 402 and the Y-axis pushing cylinder 405 align the screw tightening device 605 above the screw supply hole position of the screw supply device 608, then the vertical air cylinder 407 drives the connecting seat 408 to move downward, at this time the opening and closing air cylinder 607 controls the opening and closing head 606 to open, when the opening and closing head 606 moves to the screw position, the opening and closing air cylinder 607 makes the opening and closing head 606 clamp the screw, so that the output end of the screw tightening device 605 abuts against the screw, finally, the X-axis pushing cylinder 402 and the Y-axis pushing cylinder 405 move the material taking head 505 to the mounting hole position of the workpiece body 305, the vertical air cylinder 407 controls the connecting seat 408 to descend, after descending to the mounting position, the first lifting air cylinder 501 drives the first lifting seat 503, the screw tightening piece 306 clamped in the material taking head 505 on the first lifting seat 503 is butt jointed and clamped into the mounting position, then the clamping air cylinder 504 loosens the clamping action of the material taking head 505 on the screw tightening piece 306, then the X-axis pushing cylinder 402 and the Y-axis pushing cylinder 405 move the screw tightening device 605 to the corresponding screw mounting position of the screw tightening piece 306, the screw tightening device 605 rotates the screw into the corresponding screw hole of the screw tightening piece 306, and the cycle is repeated, after the assembly of a screw tightening piece 306 is completed, the servo motor 206 controls the rotating seat 204 to rotate, so that the mounting position of another screw tightening piece 306 not installed on the workpiece body 305 faces upward, and finally the assembly work of the screw tightening piece 306 and the screw tightening is completed.

[0037] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A screw tightening device, comprising a base (101), a fixed frame (102) and a stand (103) fixedly connected on the base (101), and a clamping mechanism and a docking mechanism arranged on the base (101), characterized in that: The clamping mechanism comprises a first guide rail (201), a first cylinder (202) is fixedly connected to the first guide rail (201), the output end of the first cylinder (202) is fixedly connected with a sliding seat (203), the sliding seat (203) is slidably connected to the first guide rail (201), a rotating seat (204) is rotatably connected to the sliding seat (203), one end of the rotating seat (204) is fixedly connected with a plurality of abutting rods (205), and the abutting rods (205) are abutted by a workpiece body (305) away from one end of the rotating seat (204) during assembly, and the rotating seat (204) is used for rotating assembly of the workpiece body (305); The butt joint mechanism is used for limiting the end of the workpiece body (305) away from the abutting rod (205), the top of the stand (103) is provided with a moving mechanism, the moving mechanism comprises X-axis guide rails (401), Y-axis guide rails (404) and vertical sliding rails (406) which are arranged perpendicular to each other in pairs, a connecting seat (408) is slidably connected to the vertical sliding rail (406), a material taking mechanism and a tightening mechanism are arranged on the connecting seat (408), and a screw supply device (608) is fixedly connected to the fixing frame (102); before assembly, a plurality of screw tightening pieces (306) are placed on the fixing frame (102).

2. A screw tightening apparatus according to claim 1, characterized in that: The X-axis guide rail (401) is fixedly connected to the top of the stand (103), an X-axis push cylinder (402) is fixedly connected to the X-axis guide rail (401), the output end of the X-axis push cylinder (402) is fixedly connected with a moving seat (403), the moving seat (403) is slidably connected to the X-axis guide rail (401), the Y-axis guide rail (404) is fixedly connected to the top of the moving seat (403), a Y-axis push cylinder (405) is fixedly connected to the Y-axis guide rail (404), the vertical sliding rail (406) is fixedly connected to the output end of the Y-axis push cylinder (405), a vertical cylinder (407) is fixedly connected to the vertical sliding rail (406), and the connecting seat (408) and the output end of the vertical cylinder (407) are fixedly connected.

3. A screw tightening apparatus according to claim 1, wherein: The material taking mechanism comprises a first lifting cylinder (501) and a first lifting guide rail (502), the first lifting cylinder (501) and the first lifting guide rail (502) are fixedly connected to the connecting seat (408), the output end of the first lifting cylinder (501) is fixedly connected with a first lifting seat (503), the first lifting seat (503) is slidably connected to the first lifting guide rail (502), a clamping cylinder (504) is fixedly connected to the first lifting seat (503), the output end of the clamping cylinder (504) is fixedly connected with two oppositely arranged material taking heads (505), and the material taking heads (505) are used for assembling a plurality of screw tightening pieces (306) to the side surface of the workpiece body (305).

4. A screw tightening apparatus according to claim 1, wherein: The tightening mechanism comprises a mounting frame (601) fixedly connected on the connecting seat (408), a second lifting cylinder (602) and a second lifting guide rail (603) fixedly connected on the mounting frame (601), a second lifting seat (604) fixedly connected on the output end of the second lifting cylinder (602), the second lifting seat (604) being slidingly connected on the second lifting guide rail (603), a screw tightening device (605) fixedly connected on the second lifting seat (604), and an opening and closing head (606) provided on the output end of the screw tightening device (605), wherein an opening and closing cylinder (607) is fixedly connected on the connecting seat (408) and used for opening and closing the opening and closing head (606) to realize the action of transferring the screw.

5. A screw tightening apparatus according to claim 1, wherein: One side of the sliding seat (203) is fixedly connected with a servo motor (206), and the output end of the servo motor (206) is fixedly connected with the rotating seat (204).

6. A screw tightening apparatus according to claim 1, wherein: The docking mechanism comprises a second guide rail (301) and a second cylinder (302), the second guide rail (301) and the second cylinder (302) are fixedly connected on the top of the base (101), the output end of the second cylinder (302) is fixedly connected with a receiving seat (303), the receiving seat (303) is slidingly connected on the second guide rail (301), a docking barrel (304) is rotatably connected on the receiving seat (303), the docking barrel (304) cooperates with the abutting rod (205) and is used for clamping two ends of the workpiece body (305).

7. A screw tightening apparatus according to claim 6, wherein: The docking barrel (304) is provided with a limiting edge (3041) near one end of the abutting rod (205), and the limiting edge (3041) is used for clamping the inner wall of one end of the workpiece body (305).

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