A high-speed locking mechanism for screws with directional requirements

Abstract

The present invention provides a high-speed screw locking mechanism with directional requirements, which belongs to the technical field of screw locking equipment. The mechanism comprises a frame, a vibration transmission track is arranged on the frame along the X-axis direction, a screw vibration disk and a material dividing mechanism are respectively arranged at the head and end of the vibration transmission track, and a locking mechanism and a product moving mechanism are respectively arranged at the upper and lower sides of the material dividing mechanism; in the present invention, the directionality of the tile screws can be guaranteed by loading through the screw vibration disk, and at the same time, the screw vibration disk with double discharge tracks can improve the loading efficiency, and then the material is transported to the material dividing mechanism for dividing in conjunction with the double transmission tracks, wherein the material dividing mechanism has a compact structure, is easy to assemble, and divides the material stably and reliably, and then two screw guns are used to lock the screws at the same time, which improves the locking efficiency and saves space; in addition, the product is moved by the product moving mechanism instead of the screw gun, so the transportation distance can be reduced and the locking cycle can be shortened.

Description

Technical Field

[0001] The invention relates to the technical field of screw locking equipment, and in particular to a high-speed screw locking mechanism with directional requirements. Background Art

[0002] Traditional manual tightening is commonly used to tighten screws on products, wasting significant manpower and resources and resulting in low efficiency. However, with the rapid advancement of science and technology, screw tightening tools such as electric and pneumatic screw drivers have emerged, replacing manual tightening methods. This has improved efficiency and reduced the workload for workers.

[0003] During the production of relays, the inventor discovered that since the screws used in relays are different from conventional ones, they have tiles and the tiles themselves are rectangular. The screws with tiles have directional requirements during the assembly process. Moreover, the current conventional screw feeders use air-blowing pipeline loading or adsorption pipeline loading, and then lock them through screw guns. However, this method cannot handle the automatic loading and locking of screws with directional requirements such as tiles. Others use a robot to grab the screws one by one on the screw feeding platform, and then transport them to the assembly workpiece through a transport mechanism to complete the locking. This method can complete the locking of screws with directional requirements, but it is inefficient and occupies a large space. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide a high-speed screw locking mechanism with directional requirements, which can ensure the directionality of the tile screws, has high locking efficiency and occupies little space.

[0005] The technical solution adopted by the present invention is as follows: a high-speed screw locking mechanism with directional requirements, comprising a frame, a vibration transmission track provided on the frame along the X-axis direction, a screw vibration plate and a material distribution mechanism provided at the front and rear ends of the vibration transmission track, and a locking mechanism and a product moving mechanism provided at the upper and lower sides of the material distribution mechanism;

[0006] The screw vibrating plate includes two discharge tracks, which are used to simultaneously deliver two screws to the vibrating conveying track in the correct direction;

[0007] The vibrating conveying track includes a vibrator, a mounting plate arranged above the vibrator, and conveying tracks arranged on the mounting plate and corresponding to the discharge tracks respectively;

[0008] The material distributing mechanism includes a base arranged at the end of the conveying track, the base is provided with a slide groove along the X-axis direction, a push plate is provided in the slide groove, the push plate is connected to the first driving member, a channel is provided between the base and the mounting plate along the Y-axis direction, a sliding block is provided in the channel corresponding to the conveying track respectively, one end of the sliding block close to the channel opening is provided with a accommodating groove adapted to the conveying track, and the other end is rotatably provided with a linkage wheel, and a linkage through groove is provided on the pushing plate corresponding to the linkage wheel. When the first driving member drives the pushing plate to move along the X-axis direction, the linkage wheel moves according to the trajectory of the linkage through groove to make the sliding block move in the channel, and makes the accommodating groove have a first position connected to the conveying track and a second position extending out of the channel;

[0009] The locking mechanism includes a first bracket movable along the Z-axis direction and two screw guns symmetrically arranged on the first bracket, the screw guns including a vacuum adsorption head and a screwdriver head rotatably arranged in the vacuum adsorption head, the screwdriver head being located in the Z-axis direction of the second position;

[0010] The product moving mechanism includes a translation module that can move along the X-axis direction and the Y-axis direction. The translation module is provided with a base, and the base is provided with two storage plates.

[0011] It also includes a dislocation mechanism arranged between the discharging track and the conveying track, the dislocation mechanism includes a second bracket, a sliding groove arranged on the second bracket along the Y-axis direction, and a first pushing rod arranged in the sliding groove, two screw grooves are provided on the first pushing rod, the side wall of the sliding groove is provided with an opening corresponding to the discharging track, the sliding groove is provided with a pushing channel corresponding to the conveying track, a second pushing rod is provided in the pushing channel, the first pushing rod is connected to the second driving member, the second pushing rod is connected to the third driving member, and when the second driving member drives the first pushing rod to move in the sliding groove, the screw groove has a third position aligned one-to-one with the opening and a fourth position aligned one-to-one with the pushing channel.

[0012] A control system is also included. First detectors connected to the control system are provided on both sides of the base corresponding to the transmission channels. The first detectors are used to detect whether the screws in the receiving grooves are in place.

[0013] The placing plate is provided with a second detector connected to the control system, and the second detector is used to detect whether there are products to be processed placed on the placing plate.

[0014] The first bracket includes a movable module that can move along the Z-axis direction, the movable module includes a movable platform, a first fixed plate is provided on the movable platform, two second fixed plates are symmetrically provided on the first fixed plate, a guide rail is provided on the second fixed plate along the Z-axis direction, a first slider and a second slider are provided on the guide rail, a third bracket is provided on the first slider, a rotary driving member is provided on the third bracket, the third bracket is connected to a fourth driving member, a fourth bracket is provided on the second slider, the screw gun is provided on the fourth bracket, and the upper end of the screwdriver head is connected to the rotary driving member.

[0015] The third bracket includes a first transverse plate portion and a second transverse plate portion from top to bottom, the rotary driving member is arranged on the first transverse plate portion, the first transverse plate portion is provided with a sleeve that rotates synchronously with the driving shaft of the rotary driving member, the lower end of the sleeve is rotatably arranged on the second transverse plate portion, a fixed shaft is provided in the sleeve, a first spring is provided between the fixed shaft and the driving shaft of the rotary driving member, a through hole is provided at the upper end of the fixed shaft, and the lower end thereof is fixed to the screwdriver head, a long through hole is provided on the sleeve that passes through the sleeve, and fixing screws are provided in the through hole and the long through hole.

[0016] A linkage shaft is provided on one side of the fourth bracket facing the third bracket, a linkage block is provided on one side of the third bracket, the linkage block is provided with a linkage hole for the linkage shaft to pass through, a second spring is sleeved on the linkage shaft, and both ends of the second spring are respectively abutted against the linkage block and the fourth bracket.

[0017] A proximity switch connected to the control system is provided between the lower portion of the second fixing plate and the fourth bracket.

[0018] The beneficial effects of the present invention are as follows: In the present invention, the directionality of the tile screws can be guaranteed by loading through the screw vibration plate, and the screw vibration plate with double discharge tracks can improve the loading efficiency, and then cooperate with the double transmission tracks to transport the materials to the dividing mechanism for dividing. The dividing mechanism has a compact structure, is easy to assemble, and divides the materials stably and reliably. Afterwards, two screw guns are used to lock the materials at the same time, which improves the locking efficiency and saves space. In addition, the product is moved by the product moving mechanism instead of the screw gun, which can reduce the transportation distance and shorten the locking cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, other drawings obtained based on these drawings still fall within the scope of the present invention.

[0020] Figure 1is a schematic diagram of the present invention;

[0021] Figure 2 Schematic diagram of the screw vibrating plate, dislocation mechanism, vibration transmission track and material distribution mechanism in the present invention;

[0022] Figure 3 It is a partial exploded view of the material distribution mechanism in the present invention;

[0023] Figure 4 Schematic diagram of the locking mechanism of the present invention;

[0024] Figure 5 Schematic diagram of the product moving mechanism in the present invention;

[0025] Figure 6 Schematic diagram of the dislocation mechanism of the present invention;

[0026] Figure 7 Schematic diagram of the locking mechanism in the present invention Figure 1 ;

[0027] Figure 8 Schematic diagram of the locking mechanism in the present invention Figure 2 ;

[0028] Figure 9 It is a cross-sectional view of the locking mechanism of the present invention. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. Subsequent embodiments will not explain this one by one.

[0031] The terms "upper," "lower," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side" used herein are merely references to the directions or positions in the accompanying drawings. These terms are intended to illustrate and facilitate understanding of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] like Figures 1 to 9 As shown, an embodiment of the present invention is provided:

[0033] A high-speed locking mechanism for screws with directional requirements includes a frame 1, the screw is a screw with a tile, generally used for the terminal posts of molded case circuit breakers and relays, a vibration transmission track 2 is arranged on the frame 1 along the X-axis direction, and a screw vibration plate 3 and a dividing mechanism 4 are respectively provided at the head and end of the vibration transmission track 2, and a locking mechanism 5 and a product moving mechanism 6 are respectively provided on the upper and lower sides of the dividing mechanism 4, and the screw vibration plate 3 includes two discharge tracks 31, which are used to simultaneously convey two screws to the vibration transmission track 2 in the correct direction; the screw vibration plate 3 is a loading device commonly used in the field of automation technology, among which a vibration plate with a double discharge track 31 is also common, such as a double-track vibration plate disclosed in the patent with announcement number CN206798480U.

[0034] The vibrating conveying track 2 includes a vibrator 21, a mounting plate 22 arranged above the vibrator 21, and a conveying track 23 arranged on the mounting plate 22 and corresponding to the discharge track 31 respectively; the vibrating conveying track 2 is a conveying device commonly used in the field of automation technology and will not be described in detail here; wherein, the conveying track 2 is adapted to the screws being conveyed, and a track cover is provided on the conveying track 23 to allow the screws to be conveyed stably in the conveying track 23.

[0035] The material distributing mechanism 4 includes a base 41 arranged at the end of the conveying track 23, the base 41 is provided with a slide groove 42 along the X-axis direction, a push plate 43 is provided in the slide groove 42, the push plate 43 is connected to a first driving member 44, the first driving member 44 is a cylinder, a hydraulic cylinder, etc., which can drive the push plate 43 to move in the slide groove 42, a channel 45 is provided between the base 41 and the mounting plate 22 along the Y-axis direction, and a sliding block 46 corresponding to the conveying track 23 is provided in the channel 45, and one end of the sliding block 46 close to the channel opening is provided with a accommodating groove 461 adapted to the conveying track 23, and the other end is provided with a accommodating groove 461 adapted to the conveying track 23. The end of the accommodating groove 461 is provided with a linkage wheel 462 for rotation. The end surface of the accommodating groove 461 close to the conveying track 23 is open, and the end surface away from the conveying track 23 is closed. The screws in the conveying track 23 can be conveyed into the accommodating groove 461. The pushing plate 43 is provided with a linkage groove 431 corresponding to the linkage wheel 462. When the first driving member 44 drives the pushing plate 43 to move along the X-axis direction, the linkage wheel 462 moves along the trajectory of the linkage groove 431, so that the sliding block 46 moves in the channel 45, and the accommodating groove 461 has a first position connected to the conveying track 23 and a second position extending out of the channel 45. Specifically, Figure 3 As shown, when the push plate 43 moves forward, one end of the two sliding blocks 46 provided with the accommodating grooves 461 extends out of the channel 45 , and when the push plate 43 moves backward, the accommodating grooves 461 on the two sliding blocks 46 are aligned with the conveying track 23 .

[0036] The locking mechanism 5 includes a first bracket 51 that can move along the Z-axis direction and two screw guns 52 symmetrically arranged on the first bracket 51, the screw gun 52 includes a vacuum adsorption head 53 and a screwdriver head 54 rotatably arranged in the vacuum adsorption head 53, and the screwdriver head 54 is located in the Z-axis direction of the second position; the screw gun 52 adopts the vacuum adsorption function in the existing technology, and the product moving mechanism 6 includes a translation module 61 that can move along the X-axis direction and the Y-axis direction, and the translation module 61 is provided with a base 62, and the base 62 is provided with two storage plates 63. Among them, the translation module 61 is a mobile mechanism commonly used in the field of automation technology; this device loads materials through the screw vibration disk 2, which can ensure the directionality of the tile screws. At the same time, the screw vibration disk 3 with double discharge tracks 31 can improve the loading efficiency, and then cooperate with the double transmission track 23 to transport it to the distribution mechanism 4 for distribution. The distribution mechanism 4 has a compact structure, is easy to assemble, and the distribution is stable and reliable. After that, two screw guns 52 are used to lock it at the same time, which improves the locking efficiency and saves space. In addition, the product is moved by the product moving mechanism, and the screw gun is not moved, which can reduce the transportation distance and shorten the locking cycle. Specifically, the inventor found through practice that in the traditional tile screw locking, one vibration disk loads one screw at a time, and the cycle is generally more than 1.5s, but the fastest cycle using this mechanism can reach 0.9s / piece.

[0037] It also includes a staggered mechanism 7 arranged between the discharge track 31 and the conveying track 23, the staggered mechanism 7 includes a second bracket 71, a sliding groove 72 arranged on the second bracket 71 along the Y-axis direction, and a first pushing rod 73 arranged in the sliding groove 72, the first pushing rod 73 is provided with two screw grooves 74, the side wall of the sliding groove 72 is provided with an opening 75 corresponding to the discharge track 31, the sliding groove 72 is provided with a pushing channel 721 corresponding to the conveying track 23, the second pushing rod 76 is provided in the pushing channel 721, the first pushing rod 73 is connected to the second driving member 77, the second pushing rod 76 is connected to the third driving member 78, and when the second driving member 77 drives the first pushing rod 73 to move in the sliding groove 72, the screw groove 74 has a third position aligned one-to-one with the opening 75 and a fourth position aligned one-to-one with the pushing channel 721. Furthermore, a third detector 11 is provided at the opening 75, a recycling frame is provided at the end of the sliding slot 72, and two third pushing rods are provided on one side of the recycling frame. When the third detector 11 detects that the screw is in the wrong direction or has a defect, the first pushing rod 73 can push the screw slot 74 on the first pushing rod 73 to the top of the recycling frame, and then the screw in the screw slot 74 is pushed into the recycling frame by the third pushing rod, thereby realizing the sorting function.

[0038] It also includes a control system. The first detectors 8 connected to the control system are provided on both sides of the base 41 corresponding to the transmission channels 45. The first detectors 8 are used to detect whether the screws in the receiving grooves 461 are in place; the storage plate 63 is provided with a second detector 9 connected to the control system. The second detector 9 is used to detect whether the storage plate 63 is placed with products to be processed, thereby improving the intelligence level of the mechanism and realizing full automation. In this embodiment, each detector can be a CCD visual detector, an infrared detector, etc., as long as it can realize the corresponding function.

[0039] The first bracket 51 includes a movable module 55 movable along the Z-axis. The movable module 55 includes a movable platform 56. A first fixed plate 57 is mounted on the movable platform 56. Two second fixed plates 58 are symmetrically mounted on the first fixed plate 57. A guide rail 581 is mounted on the second fixed plate 58 along the Z-axis. A first slider 582 and a second slider 583 are mounted on the guide rail 581. The first slider 582 is mounted on a third bracket 584. A rotary drive member 585 is mounted on the third bracket 584. The rotary drive member 585 may be a motor, a rotary cylinder, or the like. The third bracket 584 is connected to a fourth drive member 5843. A fourth bracket 586 is mounted on the second slider 583. The screw gun 52 is mounted on the fourth bracket 586, and the upper end of the screwdriver bit 54 is connected to the rotary drive member 585. In this embodiment, each drive member adopts a conventional drive source commonly used in the prior art, such as a pneumatic cylinder, a hydraulic cylinder, a servo motor, or a rotary cylinder.

[0040] The third bracket 584 includes a first transverse plate portion 5841 and a second transverse plate portion 5842 from top to bottom, the rotary drive member 585 is arranged on the first transverse plate portion 5841, and the first transverse plate portion 5841 is provided with a sleeve 502 that rotates synchronously with the drive shaft 501 of the rotary drive member 585. The lower end of the sleeve 502 is rotatably arranged on the second transverse plate portion 5842, and a fixed shaft 503 is provided in the sleeve 502. A first spring 504 is provided between the fixed shaft 503 and the drive shaft 501 of the rotary drive member 585. The upper end of the fixed shaft 503 is provided with a through hole 505, and the lower end thereof is fixed to the screwdriver head 54. The sleeve 502 is provided with a long through hole 506 that penetrates the sleeve 502. A fixing screw 507 is provided in the hole 505 and the long through hole 506; a linkage shaft 508 is provided on one side of the fourth bracket 586 facing the third bracket 584, and a linkage block 509 is provided on one side of the third bracket 584. The linkage block 509 is provided with a linkage hole 510 for the linkage shaft 508 to pass through, and a second spring 511 is sleeved on the linkage shaft 508, and the two ends of the second spring 511 are respectively abutted against the linkage block 509 and the fourth bracket 586, thereby improving the quality of screw locking; a proximity switch 10 connected to the control system is provided between the lower part of the second fixing plate 58 and the fourth bracket 586, which can control the movement range of the screwdriver head 54 to ensure that the position of the screwdriver head 54 is consistent each time it moves, which is conducive to the assembly of the screws.

[0041] The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A high-speed screw locking mechanism with directional requirements, comprising a frame (1), characterized in that: A vibration transmission track (2) is provided on the frame (1) along the X-axis direction, a screw vibration plate (3) and a material distribution mechanism (4) are provided at the head and the end of the vibration transmission track (2), and a locking mechanism (5) and a product moving mechanism (6) are provided at the upper and lower sides of the material distribution mechanism (4). The screw vibration plate (3) includes two discharge tracks (31) for simultaneously conveying two screws to the vibration conveying track (2) in the correct direction; The vibrating conveying track (2) includes a vibrator (21), a mounting plate (22) disposed above the vibrator (21), and conveying tracks (23) disposed on the mounting plate (22) and corresponding to the discharge tracks (31) one by one. The material distribution mechanism (4) includes a base (41) arranged at the end of the conveying track (23), the base (41) is provided with a slide groove (42) along the X-axis direction, a push plate (43) is provided in the slide groove (42), and the push plate (43) is connected to a first driving member (44), a channel (45) is provided between the base (41) and the mounting plate (22) along the Y-axis direction, and a sliding block (46) corresponding to the conveying track (23) is provided in the channel (45), and an end of the sliding block (46) close to the channel opening is provided with a sliding block corresponding to the conveying track (23). The track (23) is adapted to the receiving groove (461), and the other end is rotatably provided with a linkage wheel (462), and the pushing plate (43) is provided with a linkage groove (431) corresponding to the linkage wheel (462). When the first driving member (44) drives the pushing plate (43) to move along the X-axis direction, the linkage wheel (462) moves according to the trajectory of the linkage groove (431) so that the sliding block (46) moves in the channel (45), and the receiving groove (461) has a first position connected to the transmission track (23) and a second position extending out of the channel (45); The locking mechanism (5) includes a first bracket (51) movable along the Z-axis direction and two screw guns (52) symmetrically arranged on the first bracket (51), the screw guns (52) including a vacuum adsorption head (53) and a screwdriver head (54) rotatably arranged in the vacuum adsorption head (53), and the screwdriver head (54) is located in the Z-axis direction of the second position; The product moving mechanism (6) includes a translation module (61) that can be moved along the X-axis direction and the Y-axis direction. A base (62) is provided on the translation module (61), and two storage plates (63) are provided on the base (62).

2. A high-speed screw locking mechanism with directional requirements according to claim 1, characterized in that: The present invention also includes a dislocation mechanism (7) arranged between the discharge track (31) and the transmission track (23), wherein the dislocation mechanism (7) includes a second bracket (71), a sliding groove (72) arranged on the second bracket (71) along the Y-axis direction, and a first push rod (73) arranged in the sliding groove (72), wherein the first push rod (73) is provided with two screw grooves (74), and the side wall of the sliding groove (72) is provided with an opening (75) corresponding to the discharge track (31), and the sliding groove (72) is provided with a screw groove (74) corresponding to the transmission track (23). The feeding track (23) is provided with a pushing channel (721), and a second pushing rod (76) is provided in the pushing channel (721). The first pushing rod (73) is connected to a second driving member (77), and the second pushing rod (76) is connected to a third driving member (78). When the second driving member (77) drives the first pushing rod (73) to move in the sliding groove (72), the screw groove (74) has a third position aligned one-to-one with the opening (75) and a fourth position aligned one-to-one with the pushing channel (721).

3. The high-speed screw locking mechanism with directional requirements according to claim 1, characterized in that: A control system is also included. First detectors (8) connected to the control system are provided on both sides of the base (41) corresponding to the transmission channels (45). The first detectors (8) are used to detect whether the screws in the receiving groove (461) are in place. The placement plate (63) is provided with a second detector (9) connected to the control system, and the second detector (9) is used to detect whether a product to be processed is placed on the placement plate (63).

4. The high-speed screw locking mechanism with directional requirements according to claim 1, characterized in that: The first bracket (51) includes a movable module (55) movable along the Z-axis direction, the movable module (55) includes a movable platform (56), a first fixed plate (57) is provided on the movable platform (56), two second fixed plates (58) are symmetrically provided on the first fixed plate (57), a guide rail (581) is provided on the second fixed plate (58) along the Z-axis direction, a first slider (582) and a second slider (583) are provided on the guide rail (581), a third bracket (584) is provided on the first slider (582), a rotary drive member (585) is provided on the third bracket (584), the third bracket (584) is connected to a fourth drive member (5843), a fourth bracket (586) is provided on the second slider (583), the screw gun (52) is provided on the fourth bracket (586), and the upper end of the screwdriver head (54) is connected to the rotary drive member (585).

5. The high-speed screw locking mechanism with directional requirements according to claim 4, characterized in that: The third bracket (584) includes a first transverse plate portion (5841) and a second transverse plate portion (5842) from top to bottom. The rotary drive member (585) is provided on the first transverse plate portion (5841). The first transverse plate portion (5841) is provided with a sleeve (502) that rotates synchronously with the drive shaft (501) of the rotary drive member (585). The lower end of the sleeve (502) is rotatably provided on the second transverse plate portion (5842). The sleeve (502) A fixed shaft (503) is provided inside, a first spring (504) is provided between the fixed shaft (503) and the driving shaft (501) of the rotating driving member (585), a through hole (505) is provided at the upper end of the fixed shaft (503), and the lower end thereof is fixed to the screwdriver head (54), a long through hole (506) penetrating the sleeve (502) is provided on the sleeve (502), and a fixing screw (507) is provided in the through hole (505) and the long through hole (506).

6. The high-speed screw locking mechanism with directional requirements according to claim 5, characterized in that: A linkage shaft (508) is provided on one side of the fourth bracket (586) facing the third bracket (584), a linkage block (509) is provided on one side of the third bracket (584), the linkage block (509) is provided with a linkage hole (510) for the linkage shaft (508) to pass through, a second spring (511) is sleeved on the linkage shaft (508), and two ends of the second spring (511) are respectively abutted against the linkage block (509) and the fourth bracket (586).

7. A high-speed screw locking mechanism with directional requirements according to claim 6, characterized in that: A proximity switch (10) connected to a control system is provided between the lower portion of the second fixing plate (58) and the fourth bracket (586).

Images