Cabinet type six-shaft automatic screw locking device

Abstract

The invention discloses a cabinet type six-axis automatic screw locking device which comprises an outer cover, a machine table and an electric control cabinet. A controller is arranged in the electric control cabinet, and a screw locking device is arranged on the machine table. The screw locking device comprises an X1 movement shaft, an X2 movement shaft, a Y1 movement shaft, a Y2 movement shaft, a Z1 movement shaft, a Z2 movement shaft, a first screw feeder, a second screw feeder, a portal frame, a front end control unit and a rear end control unit. The structural design of double Y shafts, double X shafts and double Z shafts is adopted, two electric screwdrivers are arranged for screw locking operation, locking of two kinds of screws on the same product can be completed, the labor intensity of workers can be effectively relieved, the production efficiency can be effectively improved, and the screw locking torque output uniformity can be effectively improved; the double-station double-head screw locking device can be grafted in the middle of a production line, the front-placing and rear-taking alternate cycle operation of workpieces is achieved, double-station double-head simultaneous or alternate screw locking work is achieved, and the production efficiency of the production line is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of screw assembly, and more specifically, to a cabinet-type six-axis automatic screw locking device. Background Art

[0002] In the product development of the 3C industry, mobile phones and tablet electronic products require a large number of tiny screws for assembly. Due to the small size of the screws, manual assembly is time-consuming and labor-intensive, and fatigue is easy to cause mistakes after long hours of work, which greatly increases the assembly cost of the product and the overall assembly efficiency is low. In addition, due to the large number of specifications of small-sized screws, the screws need to be arranged and placed in order, which is easy to make mistakes during manual operation and lead to the selection of the wrong screws. In addition, due to the difference in torque output, the manual locking effect of the screws is not ideal, and there may even be problems with the screws slipping or not being tightened.

[0003] There are also automatic screwing equipment on the market, but most of these equipment can only screw one specification of screws. When there are many types of screws, the screw bits need to be replaced frequently, which affects efficiency. In addition, most existing screw machines can only be used alone and cannot be used in conjunction with production lines, which has great limitations. Summary of the invention

[0004] The present invention discloses a cabinet-type six-axis automatic screw locking device, comprising an outer cover, a machine platform and an electric control cabinet which are sequentially arranged from top to bottom; a controller is arranged in the electric control cabinet, a screw locking device is arranged on the machine platform, touch screens are arranged on both sides of the outer cover, and the screw locking device and the touch screen are respectively connected to the controller;

[0005] The screw locking device includes an X1 motion axis, an X2 motion axis, a Y1 motion axis, a Y2 motion axis, a Z1 motion axis, a Z2 motion axis, a first screw feeder, a second screw feeder, a gantry, a front-end control unit and a rear-end control unit;

[0006] The gantry is arranged in the middle of the machine platform, and comprises a crossbeam and two side arms, and the X1 motion axis and the X2 motion axis crossbeams are respectively arranged on both sides of the crossbeam;

[0007] The Y1 motion axis and the Y2 motion axis are arranged on the machine platform in parallel with each other, and the first screw feeder and the second screw feeder are arranged between the Y1 motion axis and the Y2 motion axis; a first positioning fixture is arranged on the Y1 motion axis, and the Y1 motion axis can drive the first positioning fixture to move along the length direction of the Y1 motion axis; a second positioning fixture is arranged on the Y2 motion axis, and the Y2 motion axis can drive the second positioning fixture to move along the length direction of the Y2 motion axis;

[0008] The Z1 motion axis is arranged on the X1 motion axis, and the X1 motion axis can drive the Z1 motion axis to reciprocate along the length direction of the beam; a first electric screwdriver is arranged on the Z1 motion axis, and the Z1 motion axis can drive the first electric screwdriver to reciprocate in a vertical direction;

[0009] The Z2 motion axis is arranged on the X2 motion axis, and the X2 motion axis can drive the Z2 motion axis to reciprocate along the length direction of the beam; a second electric screwdriver is arranged on the Z2 motion axis, and the Z2 motion axis can drive the second electric screwdriver to reciprocate in the vertical direction;

[0010] The front-end control unit and the rear-end control unit are respectively arranged at the front and rear ends of the machine.

[0011] Preferably, the first electric screwdriver and the second electric screwdriver have the same structure, and the first electric screwdriver comprises a vacuum adsorption head and a screwdriver body; the opening of the vacuum adsorption head is arranged downward, and a vacuum connector is arranged on its side, and the vacuum connector is used to connect a vacuum extraction device; the screwdriver body is arranged above the vacuum adsorption head, and comprises a screwdriver bit, and the screwdriver bit is connected to the vacuum adsorption head.

[0012] Preferably, a pressure sensor is provided in the vacuum adsorption head, and the pressure sensor is connected to the controller.

[0013] Preferably, the first positioning jig has the same structure as the second positioning jig, and the first positioning jig includes a positioning seat, a horizontal pressing part and a lifting and pressing part; the positioning seat is connected to the Y1 motion axis; the horizontal pressing part is arranged at the center of the positioning seat, and includes a horizontal pressing cylinder, a horizontal connecting seat and a horizontal pressing frame; the horizontal pressing cylinder is connected to the positioning seat, and its piston rod is connected to the horizontal connecting seat, and the horizontal pressing frame is connected to the horizontal connecting seat; the lifting and pressing part includes a pressing frame and a pair of lifting cylinders, the lifting cylinders are arranged on the side of the positioning seat, and the two sides of the pressing frame are respectively connected to the piston rods of a pair of lifting cylinders; the lifting cylinder and the positioning seat are movably connected.

[0014] Preferably, safety gratings are respectively provided on both side surfaces of the outer cover, and the safety gratings are connected to the controller, and determine whether foreign objects have entered the machine by detecting the blocking of the light path by personnel or equipment.

[0015] Preferably, the first screw feeder has the same structure as the second screw feeder, and the first screw feeder includes a screw arranging machine and a screw storage box; the screw arranging machine provides screws for the first electric screwdriver, and the screw storage box is used to store screws returned by the first electric screwdriver.

[0016] Preferably, a weighing sensor is provided in the screw storage box, and the weighing sensor is connected to the controller.

[0017] Preferably, a first magnetizing device and a second magnetizing device are further provided on the machine platform, wherein the first magnetizing device is provided in cooperation with the first electric screwdriver, and the second magnetizing device is provided in cooperation with the second electric screwdriver.

[0018] Preferably, universal casters are respectively provided at the four corners of the bottom of the electric control cabinet.

[0019] Preferably, the X1 motion axis, the X2 motion axis, the Y1 motion axis, the Y2 motion axis, the Z1 motion axis and the Z2 motion axis have the same structure, and all include a driving motor, a driving pulley, a driven pulley, a synchronous belt, a guide rail and a slider seat; the driving motor is transmission-connected to the driving pulley; the driving pulley and the driven pulley are arranged opposite to each other and are connected by the synchronous belt; the slider seat is slidably arranged on the guide rail, and the synchronous belt is connected to the slider seat.

[0020] The cabinet-type six-axis automatic screw locking device provided by the present invention adopts a double Y-axis, double X-axis and double Z-axis structural design, and is provided with two electric screwdrivers for screw locking operations, which can complete the locking of two types of screws on the same product, can effectively reduce the labor intensity of manual labor, improve production efficiency, and the uniformity of the torque output of screw locking; by placing the product on the first positioning fixture or the second positioning fixture, the first screw feeder and the second screw feeder arrange the screws and sort them one by one, and the first electric screwdriver or the second electric screwdriver absorbs the sorted screws, and rotates the screws according to the set speed torque to lock the screws to the corresponding position of the product. In addition, the present invention is provided with a screw storage box to solve the problem of screw loss and crooked locking caused by the weakening of magnetism of the screw head, and can also avoid the problem of screws falling and scattering on the equipment due to insufficient suction data of the vacuum adsorption head. The front and rear ends of the machine of the present invention can be fed, and the entire device can be grafted in the middle of the production line to realize the alternating cycle operation of front placement and rear removal of the workpiece, and the double-station double-head simultaneously or alternately performs screw locking work, which effectively improves the production efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1This is a structural diagram of the cabinet-type six-axis automatic screw locking device of the present invention;

[0023] Figure 2 Another angle structural diagram of the cabinet-type six-axis automatic screw locking device of the present invention;

[0024] Figure 3 This is an internal structure diagram of the cabinet-type six-axis automatic screw locking device of the present invention;

[0025] Figure 4 yes Figure 3 Front view of;

[0026] Figure 5 yes Figure 3 Back view of ;

[0027] Figure 6 yes Figure 3 A side cross-sectional view of

[0028] Figure 7 It is a structural diagram of the first positioning fixture of the cabinet-type six-axis automatic screw locking device of the present invention;

[0029] Figure 8 yes Figure 7 Exploded view of;

[0030] The marks in the drawings are as follows:

[0031] 1--Outer cover, 2--Machine, 3--Electrical control cabinet, 4--Touch screen, 5--X1 motion axis, 6--X2 motion axis, 7--Y1 motion axis, 8--Y2 motion axis, 9--Z1 motion axis, 10--Z2 motion axis, 11--First screw feeder, 12--Second screw feeder, 13--Gantry, 1301--Beam, 1302--Side arm, 14--Front end control unit, 15--Rear end control unit, 16--First A positioning fixture, 1601--positioning seat, 1602--horizontal clamping cylinder, 1603--horizontal connecting seat, 1604--horizontal clamping frame, 1605--compression frame, 1606--lifting cylinder, 17--second positioning fixture, 18--first electric screwdriver, 1801--vacuum adsorption head, 1802--screwdriver body, 1803--batch head, 19--second electric screwdriver, 20--safety grating, 21--universal caster. DETAILED DESCRIPTION

[0032] The present invention discloses a cabinet-type six-axis automatic screw locking device. By adopting a double Y-axis, double X-axis and double Z-axis structural design and arranging two electric screwdrivers for screw locking operations, the locking of two kinds of screws on the same product can be completed, which can effectively reduce the intensity of manual labor, improve production efficiency, and the uniformity of the torque output of screw locking; the front and rear ends of the machine platform of the present invention can both be fed, and the entire device can be grafted in the middle of the production line to realize the alternating cycle operation of front placing and rear taking of workpieces, and the double-station double-head screw locking work is carried out simultaneously or alternately, which effectively improves the production efficiency of the production line.

[0033] The following is a clear and detailed description of the technical solutions in the embodiments of the present invention in conjunction 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. 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.

[0034] See also Figures 1 to 8 The present invention provides a cabinet-type six-axis automatic screw locking device, comprising an outer cover 1, a machine platform 2 and an electric control cabinet 3 arranged in sequence from top to bottom; a controller is arranged in the electric control cabinet 3, a screw locking device is arranged on the machine platform 2, and touch screens 4 are respectively arranged on both sides of the outer cover 1, and the screw locking device and the touch screen 4 are respectively connected to the controller;

[0035] The screw locking device includes an X1 motion axis 5, an X2 motion axis 6, a Y1 motion axis 7, a Y2 motion axis 8, a Z1 motion axis 9, a Z2 motion axis 10, a first screw feeder 11, a second screw feeder 12, a gantry 13, a front-end control unit 14 and a rear-end control unit 15;

[0036] The gantry 13 is disposed in the middle of the machine platform 2, and includes a crossbeam 1301 and two side arms 1302. The crossbeams 1301 of the X1 motion axis 5 and the X2 motion axis 6 are respectively disposed on both sides of the crossbeam 1301;

[0037] The Y1 motion axis 7 and the Y2 motion axis 8 are arranged on the machine table 2 in parallel with each other, and the first screw feeder 11 and the second screw feeder 12 are arranged between the Y1 motion axis 7 and the Y2 motion axis 8; a first positioning fixture 16 is arranged on the Y1 motion axis 7, and the Y1 motion axis 7 can drive the first positioning fixture 16 to move along the length direction of the Y1 motion axis 7; a second positioning fixture 17 is arranged on the Y2 motion axis 8, and the Y2 motion axis 8 can drive the second positioning fixture 17 to move along the length direction of the Y2 motion axis 8;

[0038] The Z1 motion axis 9 is arranged on the X1 motion axis 5, and the X1 motion axis 5 can drive the Z1 motion axis 9 to reciprocate along the length direction of the beam 1301; the Z1 motion axis 9 is provided with a first electric screwdriver 18, and the Z1 motion axis 9 can drive the first electric screwdriver 18 to reciprocate in the vertical direction;

[0039] The Z2 motion axis 10 is arranged on the X2 motion axis 6, and the X2 motion axis 6 can drive the Z2 motion axis 10 to reciprocate along the length direction of the beam 1301; a second electric screwdriver 19 is arranged on the Z2 motion axis 10, and the Z2 motion axis 10 can drive the second electric screwdriver 19 to reciprocate in the vertical direction;

[0040] The front control unit 14 and the rear control unit 15 are respectively disposed at the front and rear ends of the machine 2 .

[0041] In the embodiment of the present invention, the entire device is composed of an outer cover 1 at the top, a machine 2 in the middle, and an electric control cabinet 3 at the bottom, and the screw locking device is installed on the machine 2 and connected to a controller inside the electric control cabinet 3. In order to facilitate the operation of the device on both sides of the machine 2, the present invention is provided with touch screens 4 on both sides of the outer cover 1, and the touch screens 4 can be connected to the controller to set the locking parameters.

[0042] The present invention adopts a structural design of double Y axes, double X axes and double Z axes. Specifically, the Y1 motion axis 7 and the Y2 motion axis 8 are arranged in pairs and are arranged parallel to each other on the machine table 2, and can respectively drive the first positioning fixture 16 and the second positioning fixture 17 to move, so that the first positioning fixture 16 and the second positioning fixture 17 can be loaded at the front end or the rear end of the machine table 2 respectively, and it only needs to control the Y1 motion axis 7 or the Y2 motion axis 8. The X1 motion axis 5 and the X2 motion axis 6 are respectively arranged on both sides of the beam 1301, and are respectively equipped with the Z1 motion axis 9 and the Z2 motion axis 10, so that the first electric screwdriver 18 on the Z1 motion axis 9 and the second electric screwdriver 19 on the Z2 motion axis 10 are respectively located on both sides of the beam 1301, and in conjunction with the Y1 motion axis 7 and the Y2 motion axis 8 below, the first electric screwdriver 18 can perform screw locking operations on the workpiece on the first positioning fixture 16 or the second positioning fixture 17, and the second electric screwdriver 19 can also perform screw locking operations on the workpiece on the first positioning fixture 16 or the second positioning fixture 17. It is also possible to use the first electric screwdriver 18 and the second electric screwdriver 19 to alternately process the workpieces of a positioning fixture and a second positioning fixture 17, so as to realize the simultaneous processing of two products, or to have two screw locking functions on the same product.

[0043] The working process of the present invention is as follows:

[0044] Turn on the power manually, place the product in the first positioning fixture 16 of the Y1 motion axis 7 according to the direction, press the front control unit 14 or the rear control unit 15 to start, and release the product to the Y2 motion axis 8 manually. Press the front control unit 14 or the rear control unit 15, and the Y1 motion axis 7 drives the first positioning fixture 16 to move to the locking point of the Z1 motion axis 9 or the Z2 motion axis 10. At the same time, the Y2 motion axis 8 also drives the second positioning fixture 17 to move to the locking point of the Z1 motion axis 9 or the Z2 motion axis 10. The X1 motion axis 5 drives the Z1 motion axis 9 to move to the position above the first screw feeder 11 or the second screw feeder 12 to suck the screw. The Z1 motion axis 9 drives the first electric screwdriver 18 to descend and suck the screw. Then the Z1 motion axis 9 rises and the X1 motion axis 5 moves the sucked screw to the set locking point. The Z1 motion axis 9 descends and the first electric screwdriver 18 rotates and starts to lock the screw into the hole position. It automatically stops after reaching the set torque. The product in the first positioning fixture 16 on the Y1 motion axis 7 is screwed. The operator takes out the product from the lower station at the rear end, and the Y1 motion axis 7 automatically returns to the upper station, which puts the product into the Y1 motion axis 7 fixture. At the same time, the X2 motion axis 6 drives the Z2 motion axis 10 to move to the first screw feeder 11 or the second screw feeder 12 to suck the screw above the position, and the Z2 motion axis 10 drives the second electric screwdriver 19 to descend to suck the screw. The Z2 motion axis 10 rises and the X2 motion axis 6 moves with the sucked screw to the set locking point. The Z2 motion axis 10 descends and the second electric screwdriver 19 Rotate and start to lock the screw into the hole position, and automatically stop after reaching the set torque. After the product in the second positioning fixture 17 of the Y2 motion axis 8 is screwed, it moves to the lower station at the rear end for the operator to take out the product, and the Y2 motion axis 8 automatically returns to the upper station, and the upper station puts the product into the second positioning fixture 17 of the Y2 motion axis 8. The above operation is repeated in a cycle. The Z1 motion axis 9 / Z2 motion axis 10 can alternately lock the corresponding screws of the product on the Y1 motion axis 7 / Y2 motion axis 8, and can also complete the locking of two types of screws on the same product according to the setting.

[0045] The machine 2 of the present invention can be fed at both the front and rear ends, and the entire device can be grafted in the middle of the production line to achieve alternating cycle operations of placing workpieces in front and taking them out in the back, and double-station double-head screw locking work can be performed simultaneously or alternately, effectively improving the production efficiency of the production line.

[0046] Preferably, the first electric screwdriver 18 and the second electric screwdriver 19 have the same structure, and the first electric screwdriver 18 includes a vacuum adsorption head 1801 and a screwdriver body 1802; the opening of the vacuum adsorption head 1801 is set downward, and a vacuum connector is provided on its side, and the vacuum connector is used to connect a vacuum extraction device; the screwdriver body 1802 is arranged above the vacuum adsorption head 1801, and includes a screwdriver bit 1803, and the screwdriver bit 1803 is connected to the vacuum adsorption head 1801. In this embodiment, the screw is grasped by the vacuum adsorption head 1801. The vacuum adsorption head 1801 is connected to a vacuum pump to form a negative pressure at the opening below. When the Z1 motion axis 9 descends, the vacuum adsorption head 1801 sucks the top of the screw, and then the screw is transferred through the cooperation of the X1 motion axis 5 and the Z1 motion axis 9. When the screw reaches the locking point, the Z1 motion axis 9 continues to descend, so that the screwdriver body 1802 and the bit 1803 descend and contact the screw on the vacuum adsorption head 1801, and then the screwdriver body 1802 starts and drives the bit 1803 to screw the screw into the product, completing the product locking process.

[0047] Preferably, a pressure sensor is provided in the vacuum adsorption head 1801, and the pressure sensor is connected to the controller. By setting a pressure sensor to detect the air pressure change in the vacuum adsorption head 1801, the deviation between the pressure value after the adsorption of the screw and the set value can be detected. When the deviation is large, it indicates that the screw is not adsorbed stably. At this time, the screw is sent to the specified position through the cooperation of the X1 motion axis 5 and the Z1 motion axis 9, and then the screw is put down, and then the screw is returned to the first screw feeder 11 or the second screw feeder 12 to grab the screw, so as to ensure that the grabbed screws can be stably adsorbed, so as to improve the quality of subsequent screw locking, avoid the screws falling off, crooked locking, or the screws falling onto the machine 2 due to insufficient suction, which affects the normal operation of the equipment.

[0048] Preferably, the first positioning fixture 16 has the same structure as the second positioning fixture 17, and the first positioning fixture 16 includes a positioning seat 1601, a horizontal pressing portion and a lifting pressing portion; the positioning seat 1601 is connected to the Y1 motion axis 7; the horizontal pressing portion is arranged at the center of the positioning seat 1601, and includes a horizontal pressing cylinder 1602, a horizontal connecting seat 1603 and a horizontal pressing frame 1604; the horizontal pressing cylinder 1602 and the positioning seat 160 1, its piston rod is connected to the horizontal connection seat 1603, and the horizontal pressing frame 1604 is connected to the horizontal connection seat 1603; the lifting and pressing part includes a pressing frame 1605 and a pair of lifting cylinders 1606, the lifting cylinders 1606 are arranged on the side of the positioning seat 1601, and the two sides of the pressing frame 1605 are respectively connected to the piston rods of a pair of lifting cylinders 1606; the lifting cylinders 1606 and the positioning seat 1601 are movably connected. In this embodiment, the vertical direction and the horizontal direction are used to clamp and fix the product. Specifically, the lifting and clamping part drives the lifting or lowering of the clamping frame 1605 through the lifting cylinder 1606. When the clamping frame 1605 is lifted, the product can be placed in the horizontal clamping frame 1604, and then the horizontal cylinder drives the horizontal clamping frame 1604 to clamp the product through the horizontal connecting seat 1603. Then the lifting cylinder 1606 drives the clamping frame 1605 to descend and firmly clamp the product in the vertical direction to improve the accuracy of screw locking.

[0049] Preferably, safety gratings 20 are provided on both sides of the outer cover 1, respectively. The safety gratings 20 are connected to the controller and detect whether a foreign object has entered the machine 2 by blocking the light path by a person or an instrument. In this embodiment, by setting safety gratings 20 on both sides of the outer cover 1, the safety gratings 20 are arranged toward the incoming direction of the machine 2. The safety gratings 20 detect whether a foreign object has entered the machine 2 by blocking the light path by a person or an instrument. Once a foreign object is found to have entered, the working process of the equipment can be suspended by the controller, thereby protecting the operator or the machine 2. Furthermore, an alarm device can be provided, which is connected to the controller, and once a foreign object has entered, a reminder can be issued to the outside through the alarm device.

[0050] Preferably, the first screw feeder 11 has the same structure as the second screw feeder 12, and the first screw feeder 11 includes a screw arranging machine and a screw storage box; the screw arranging machine provides screws for the first electric screwdriver 18, and the screw storage box is used to store the screws returned by the first electric screwdriver 18. In this embodiment, the screw arranging machine arranges the screws and sorts them one by one, and the vacuum suction head 1801 sucks the sorted screws by vacuum suction to perform locking operations. Once the pressure sensor detects that the suction force of the screw is insufficient, the screw is sent to the screw storage box to facilitate the screw to be put back into use.

[0051] Preferably, a weighing sensor is provided in the screw storage box, and the weighing sensor is connected to the controller. The weighing sensor is provided to monitor the accumulation of screws in the screw storage box. Once the accumulation of screws exceeds a set value, a reminder can be issued through the controller so that the staff can clean the screw storage box in time.

[0052] Preferably, the machine 2 is further provided with a first magnetizing device and a second magnetizing device, wherein the first magnetizing device is provided in cooperation with the first electric screwdriver 18, and the second magnetizing device is provided in cooperation with the second electric screwdriver 19. With the above-mentioned structural arrangement, the first electric screwdriver 18 or the second electric screwdriver 19 can be automatically magnetized again after the magnetism of the screwdriver bit 1803 is weakened.

[0053] Preferably, universal casters 21 are respectively provided at the four corners of the bottom of the electric control cabinet 3. In this embodiment, the cabinet-type six-axis automatic screw locking device can be grafted in the middle of the production line to realize the alternating cycle operation of front placement and back removal. Therefore, universal casters 21 are provided at the bottom of the electric control cabinet 3 to facilitate the rapid movement of the device, so as to enhance the matching practicality of the production line operation.

[0054] Preferably, the X1 motion axis 5, the X2 motion axis 6, the Y1 motion axis 7, the Y2 motion axis 8, the Z1 motion axis 9 and the Z2 motion axis 10 have the same structure, and all include a driving motor, a driving pulley, a driven pulley, a synchronous belt, a guide rail and a slider seat; the driving motor is connected to the driving pulley in a transmission manner; the driving pulley and the driven pulley are arranged opposite to each other and are connected through the synchronous belt; the slider seat is slidably arranged on the guide rail, and the synchronous belt is connected to the slider seat. In this embodiment, each motion axis adopts the same driving structure, so that the driving motor drives the driving pulley, the driving pulley drives the synchronous belt to operate, and the synchronous belt drives the slider seat to move on the guide rail, thereby realizing that each motion axis or the corresponding functional mechanism installed on the slider seat moves in the length direction of the guide rail, so as to realize the rapid axial movement of each motion axis or the corresponding functional mechanism.

[0055] The cabinet-type six-axis automatic screw locking device provided by the present invention adopts a double Y-axis, double X-axis and double Z-axis structural design, and is provided with two electric screwdrivers for screw locking operations, which can complete the locking of two types of screws on the same product, can effectively reduce the labor intensity of manual labor, improve production efficiency, and the uniformity of the torque output of screw locking; by placing the product on the first positioning fixture or the second positioning fixture, the first screw feeder and the second screw feeder arrange the screws and sort them one by one, and the first electric screwdriver or the second electric screwdriver absorbs the sorted screws, and rotates the screws according to the set speed torque to lock the screws to the corresponding position of the product. In addition, the present invention is provided with a screw storage box to solve the problem of screw loss and crooked locking caused by the weakening of magnetism of the screw head, and can also avoid the problem of screws falling and scattering on the equipment due to insufficient suction data of the vacuum adsorption head. The front and rear ends of the machine of the present invention can be fed, and the entire device can be grafted in the middle of the production line to realize the alternating cycle operation of front placement and rear removal of the workpiece, and the double-station double-head simultaneously or alternately performs screw locking work, which effectively improves the production efficiency of the production line.

[0056] The above is a detailed introduction to the cabinet-type six-axis automatic screw locking device provided by the present invention. For general technicians in this field, according to the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A cabinet-type six-axis automatic screw locking device, It is characterized in that The invention comprises an outer cover (1), a machine platform (2) and an electric control cabinet (3) which are arranged in order from top to bottom; a controller is arranged in the electric control cabinet, a screw locking device is arranged on the machine platform, and touch screens (4) are respectively arranged on both sides of the outer cover, and the screw locking device and the touch screen are respectively connected to the controller; The screw locking device comprises an X1 motion axis (5), an X2 motion axis (6), a Y1 motion axis (7), a Y2 motion axis (8), a Z1 motion axis (9), a Z2 motion axis (10), a first screw feeder (11), a second screw feeder (12), a gantry (13), a front-end control unit (14) and a rear-end control unit (15); The gantry is arranged in the middle of the machine platform, and comprises a crossbeam (1301) and two side arms (1302), and the X1 motion axis and the X2 motion axis crossbeams are respectively arranged on both sides of the crossbeam; The Y1 motion axis and the Y2 motion axis are arranged on the machine platform in parallel with each other, and the first screw feeder and the second screw feeder are arranged between the Y1 motion axis and the Y2 motion axis; a first positioning fixture (16) is arranged on the Y1 motion axis, and the Y1 motion axis can drive the first positioning fixture to move along the length direction of the Y1 motion axis; a second positioning fixture (17) is arranged on the Y2 motion axis, and the Y2 motion axis can drive the second positioning fixture to move along the length direction of the Y2 motion axis; The Z1 motion axis is arranged on the X1 motion axis, and the X1 motion axis can drive the Z1 motion axis to move back and forth along the length direction of the beam; a first electric screwdriver (18) is arranged on the Z1 motion axis, and the Z1 motion axis can drive the first electric screwdriver to move back and forth in a vertical direction; The Z2 motion axis is arranged on the X2 motion axis, and the X2 motion axis can drive the Z2 motion axis to move back and forth along the length direction of the beam; a second electric screwdriver (19) is arranged on the Z2 motion axis, and the Z2 motion axis can drive the second electric screwdriver to move back and forth in a vertical direction; The front-end control unit and the rear-end control unit are respectively arranged at the front and rear ends of the machine.

2. According to claim 1, the cabinet-type six-axis automatic screw locking device, It is characterized in that The first electric screwdriver has the same structure as the second electric screwdriver, wherein the first electric screwdriver comprises a vacuum adsorption head (1801) and a screwdriver body (1802); the opening of the vacuum adsorption head is arranged downward, and a vacuum joint is arranged on its side, and the vacuum joint is used to connect a vacuum extraction device; the screwdriver body is arranged above the vacuum adsorption head, and comprises a screwdriver bit (1803), and the screwdriver bit is connected to the vacuum adsorption head.

3. The cabinet-type six-axis automatic screw locking device according to claim 2, It is characterized in that A pressure sensor is arranged in the vacuum adsorption head, and the pressure sensor is connected to the controller.

4. The cabinet-type six-axis automatic screw locking device according to claim 1, It is characterized in that The structure of the first positioning fixture is the same as that of the second positioning fixture. The first positioning fixture includes a positioning seat (1601), a horizontal clamping part and a lifting clamping part; the positioning seat is connected to the Y1 motion axis; the horizontal clamping part is arranged at the center of the positioning seat, and includes a horizontal clamping cylinder (1602), a horizontal connecting seat (1603) and a horizontal clamping frame (1604); the horizontal clamping cylinder is connected to the positioning seat, and its piston rod is connected to the horizontal connecting seat, and the horizontal clamping frame is connected to the horizontal connecting seat; the lifting clamping part includes a clamping frame (1605) and a pair of lifting cylinders (1606), the lifting cylinders are arranged on the side of the positioning seat, and the two sides of the clamping frame are respectively connected to the piston rods of a pair of lifting cylinders; the lifting cylinder and the positioning seat are movably connected.

5. The cabinet-type six-axis automatic screw locking device according to claim 1, It is characterized in that Safety gratings (20) are respectively arranged on both side surfaces of the outer cover. The safety gratings are connected to the controller and detect whether a foreign object has entered the machine by blocking the light path by a person or an instrument.

6. The cabinet-type six-axis automatic screw locking device according to claim 3, It is characterized in that The first screw feeder has the same structure as the second screw feeder. The first screw feeder includes a screw arranging machine and a screw storage box. The screw arranging machine provides screws for the first electric screwdriver, and the screw storage box is used to store screws returned by the first electric screwdriver.

7. The cabinet-type six-axis automatic screw locking device according to claim 6, It is characterized in that A weighing sensor is arranged in the screw storage box, and the weighing sensor is connected to the controller.

8. The cabinet-type six-axis automatic screw locking device according to claim 1, It is characterized in that The machine platform is also provided with a first magnetizing device and a second magnetizing device. The first magnetizing device is provided in cooperation with the first electric screwdriver, and the second magnetizing device is provided in cooperation with the second electric screwdriver.

9. The cabinet-type six-axis automatic screw locking device according to claim 1, It is characterized in that Universal casters (21) are respectively arranged at the four corners of the bottom of the electric control cabinet.

10. The cabinet-type six-axis automatic screw locking device according to any one of claims 1 to 9, It is characterized in that The X1 motion axis, the X2 motion axis, the Y1 motion axis, the Y2 motion axis, the Z1 motion axis and the Z2 motion axis have the same structure, and all include a driving motor, a driving pulley, a driven pulley, a synchronous belt, a guide rail and a slider seat; the driving motor is transmission-connected to the driving pulley; the driving pulley and the driven pulley are arranged opposite to each other and are connected by the synchronous belt; the slider seat is slidably arranged on the guide rail, and the synchronous belt is connected to the slider seat.

Images