Printer screw tightening device

Abstract

The invention discloses a screw tightening device for a printer, and the invention relates to the technical field of screw tightening, comprising a picking frame, wherein the inner wall of the picking frame is fixedly connected with a working cylinder, the outer wall of the working cylinder is provided with a limiting groove, the inner wall of the working cylinder is slidably connected with a telescopic column, and by arranging the working cylinder and the clamping plate, the movement of the tightening head drives the telescopic column to overcome the elastic force of the working spring and slide along the limiting groove of the outer wall of the working cylinder, the sliding of the telescopic column drives three groups of connecting rods on the outer wall of the lifting block to move synchronously, and then the movement of the connecting rod drives the clamping plate to slide along the outer wall of the picking frame and fit with the side wall of the working screw, and at the same time, the sliding of the telescopic column drives the rotating pillar and the positioning support groove to abut against each other, so as to realize the positioning operation after the clamping plate and the working screw are fitted, so as to avoid the working screw from being offset during the picking process, and the working screw is not accurately positioned, resulting in damage to the installation part of the printer body.

Description

Technical Field

[0001] The invention relates to the technical field of screw tightening, in particular to a screw tightening device for a printer. Background Art

[0002] A printer is one of the output devices of a computer and is used to print the computer processing results on relevant media. When assembling the printer, the screws need to be tightened.

[0003] For example, the patent with publication number CN113172404A discloses a printer screw tightening device, including a frame and a positioning trolley module; the frame is connected with a screw feeding module, an automatic adsorption screw tightening module and a positioning rotary material receiving module; the positioning trolley module is used to position and clamp the printer; the positioning rotary material receiving module is used to position and fix the positioning trolley module, and drive the rotating end of the positioning trolley module to rotate; the automatic adsorption screw tightening module is used to adsorb and screw the screws fed by the screw feeding module to the printer; the printer screw tightening device described in the present invention adopts the screw feeding module for feeding, and then automatically tightens the products on the positioning trolley module through the automatic adsorption screw tightening module, and cooperates with the positioning rotary material receiving module to drive the products to rotate, so that the four sides of the printer are screwed at one time, thereby improving efficiency and quality.

[0004] When the existing printer screw tightening device is in use, the screws need to be transported to the working area. The working screws are offset during the picking process, and the working screws are not accurately positioned, resulting in damage to the installation part of the printer body. This does not meet people's usage needs. For this reason, we propose a printer screw tightening device. Summary of the invention

[0005] The purpose of the present invention is to provide a printer screw tightening device to solve the problem in the background art that the working screw is offset during the picking process, the working screw is not accurately positioned, and the installation part of the printer body is damaged.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a printer screw tightening device comprises a picking frame, the inner wall of the picking frame is fixedly connected with a working cylinder, the outer wall of the working cylinder is provided with a limiting groove, the inner wall of the working cylinder is slidably connected with a telescopic column, the circumferential outer wall of the telescopic column has a circumferential array with the same number and one-to-one corresponding connecting columns as the limiting groove, the bottom end of the telescopic column is fixedly connected with a tightening head, the top end of the telescopic column is screwed with a working block, the outer wall of the working block is fixedly connected with a rotating pillar, the connecting part of the working cylinder and the rotating pillar is provided with a positioning support groove, the top end of the working block is screwed with a lifting block, the connecting part of the picking frame and the lifting block is fixedly connected with a working spring, the outer wall of the lifting block is screwed with a connecting rod, one end of the connecting rod is screwed with a splint slidably connected to the outer wall of the picking frame, and the outer wall of the splint is fitted with a working screw matching the outer wall of the tightening head.

[0007] Based on the above structure, the movement of the tightening head drives the telescopic column to overcome the elastic force of the working spring and slide along the limit groove of the outer wall of the working cylinder. The sliding of the telescopic column drives the connecting rod on the outer wall of the lifting block to move synchronously, and then the movement of the connecting rod drives the splint to slide along the outer wall of the picking frame and fit with the side wall of the working screw. At the same time, the sliding of the telescopic column drives the rotating support and the positioning support groove to abut against each other, thereby realizing the positioning operation after the splint and the working screw are fitted, avoiding the working screw from being offset during the picking process and the inaccurate positioning of the working screw, which leads to damage to the installation part of the printer body.

[0008] Preferably, a base is provided below the picking frame, the top of the base is fixedly connected with a Y-axis positioning assembly, the top of the Y-axis positioning assembly is fixedly connected with a positioning frame, the top of the Y-axis positioning assembly is located above the top of the base and is fixedly connected with a crossbeam, the outer wall of the crossbeam is provided with an X-axis positioning assembly, the outer wall of the X-axis positioning assembly is provided with a Z-axis positioning assembly, the outer wall of the Z-axis positioning assembly is provided with a working motor, the picking frame is installed at the output end of the working motor, one side of the positioning frame is located at the top of the base and is fixedly connected with a feeding frame, the top of the base away from the feeding frame is fixedly connected with a control box, when working, by arranging the X-axis positioning assembly, the Y-axis positioning assembly and the Z-axis positioning assembly, it is convenient to drive the tightening head to perform spatial positioning operations.

[0009] Preferably, the connection part between the rotating pillar and the positioning support groove is inclined, and the limiting groove and the rotating pillar are each provided with three groups. When working, the telescopic column slides to drive the rotating pillar and the positioning support groove to abut against each other, thereby realizing the positioning operation after the splint and the working screw are fitted together, avoiding the working screw from being offset during the picking process and inaccurate positioning of the working screw.

[0010] Preferably, the cross-section of the splint is arc-shaped, and three groups of splints are provided. When working, the sliding of the telescopic column drives the three groups of connecting rods on the outer wall of the lifting block to move synchronously, and then the movement of the connecting rod drives the splint to slide along the outer wall of the picking frame and fit with the side wall of the working screw, thereby realizing the fixing operation when picking up the working screw.

[0011] Preferably, a worm is provided on the inner wall of the positioning frame, one end of the worm is fixedly connected to a handwheel, the meshing surface of the worm is meshed with a worm wheel screwed to the inner wall of the positioning frame, the outer wall of the worm wheel is fixedly connected to a connecting frame, one end of the connecting frame is screwed to a connecting support plate, one end of the connecting support plate is screwed to a positioning plate slidably connected to the top of the positioning frame, a positioning guide groove is provided at the connecting portion between the positioning frame and the positioning plate, the outer wall of the positioning plate is fitted with the printer body, the rotation of the handwheel drives the connecting frame to rotate through the meshing of the worm and the worm wheel, the rotation of the connecting frame drives the connecting support plate to rotate, and then the rotation of the connecting support plate drives the positioning plate to slide along the outer wall of the positioning guide groove, the positioning plate slides and fits with the printer body, thereby realizing the rapid positioning operation of the printer body and avoiding the displacement of the printer body when the screws are tightened.

[0012] Preferably, the connecting frame is cross-shaped in appearance, and four groups of connecting support plates are provided. The four groups of connecting support plates are distributed in circles at equal angles about the center of the connecting frame. During operation, the hand wheel rotates to drive the cross-shaped connecting frame to rotate through the engagement of the worm and the worm gear. The rotation of the connecting frame drives the four groups of connecting support plates to rotate synchronously, thereby realizing the synchronous rotation operation of the four groups of connecting support plates.

[0013] Preferably, the cross-section of the positioning plate is "L"-shaped, and the positioning plate forms a positioning structure with the printer body through the connecting support plate. During operation, the connecting support plate rotates to drive the positioning plate to slide along the outer wall of the positioning guide groove, and the positioning plate slides and fits the printer body to achieve rapid positioning operation of the printer body and avoid displacement of the printer body when the screws are tightened.

[0014] Preferably, the outer wall of the feeding frame is fixedly connected to a feeding motor, the output end of the feeding motor is fixedly connected to a rotating disk, the outer wall of the rotating disk is fixedly connected to a flap, one side of the rotating disk is provided with a feeding trough plate fixedly connected to the inner wall of the feeding frame, the bottom end of the feeding trough plate is provided with a vibrator, one end of the feeding trough plate is fixedly connected to a picking frame fixedly connected to the outer wall of the feeding frame, the inner wall of the picking frame is fixedly connected to a pneumatic push rod, the output end of the pneumatic push rod is fixedly connected to a lifting plate, the outer wall of the lifting plate is fixedly connected to a rotating guide column, the outer wall of the rotating guide column is movably connected to a rotating cylinder that rotates with the inner wall of the picking frame, and a rotating guide groove is provided at the connecting portion between the rotating cylinder and the rotating guide column. The top of the rotating cylinder is fixedly connected to a feeding tray, and the outer wall of the feeding tray is provided with a feeding trough. When working, the feeding motor drives the flap on the outer wall of the rotating disk to rotate, and the rotation of the flap drives the working screw to fall correctly into the feeding trough plate. Then, the vibrator works to slide the working screw along the feeding trough plate to the feeding trough on the outer wall of the feeding tray, so as to realize the rapid feeding operation of the working screw. Then, the pneumatic push rod works to drive the rotating guide column on the outer wall of the lifting tray to perform the lifting operation. The movement of the rotating guide column drives the rotating cylinder to reciprocate through the rotating guide groove. The reciprocating rotation of the rotating cylinder drives the feeding trough on the outer wall of the feeding tray to rotate synchronously, and the working screw on the outer wall of the feeding trough is transferred to the predetermined position, so as to realize the precise positioning operation of the working screw and avoid the difficulty of picking up the working screw.

[0015] Preferably, the cross-section of the flap is "L"-shaped, and the flaps are distributed in equal-angle circles along the edge of the outer wall of the rotating disk. The center of the loading chute plate coincides with the center of the rotating disk, and the cross-section of the loading chute plate is "U"-shaped. During operation, the loading motor drives the flap on the outer wall of the rotating disk to rotate, and the working screw is driven to fall correctly into the loading chute plate through the rotation of the flap with an "L"-shaped cross-section.

[0016] Preferably, two groups of rotating guide grooves are provided, and the rotating guide grooves are spiral in shape. The material picking tray forms a reciprocating rotating structure with the material picking frame through the rotating guide column and the rotating guide groove. During operation, the rotating guide column moves through the spiral rotating guide groove to drive the rotating cylinder to rotate reciprocally, and the reciprocating rotation of the rotating cylinder drives the material picking groove on the outer wall of the material picking tray to rotate synchronously, thereby transferring the working screws on the outer wall of the material picking groove to a predetermined position, thereby realizing precise positioning operation of the working screws.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting the positioning plate, the hand wheel rotates to drive the cross-shaped connecting frame to rotate through the meshing of the worm and the worm gear. The rotation of the connecting frame drives the four sets of connecting support plates to rotate synchronously. Then the rotation of the connecting support plate drives the positioning plate to slide along the outer wall of the positioning guide groove. The positioning plate slides and fits with the printer body, realizing the rapid positioning operation of the printer body and avoiding the displacement of the printer body when the screws are tightened.

[0019] 2. By setting the flap rotation, the feeding motor drives the flap on the outer wall of the rotating disk to rotate, and the rotation of the flap with an "L"-shaped cross-section drives the working screw to fall correctly into the feeding chute plate. Then, the vibrator works to slide the working screw along the feeding chute plate to the feeding chute on the outer wall of the feeding disk, thereby realizing the rapid feeding operation of the working screw.

[0020] 3. By setting up a rotating cylinder, the pneumatic push rod drives the rotating guide column on the outer wall of the lifting plate to perform lifting operations. The movement of the rotating guide column drives the rotating cylinder to reciprocate through the spiral rotating guide groove. The reciprocating rotation of the rotating cylinder drives the material trough on the outer wall of the material taking plate to rotate synchronously, and the working screws on the outer wall of the material taking trough are transferred to the predetermined position, thereby realizing the precise positioning operation of the working screws and avoiding the difficulty of picking up the working screws.

[0021] 4. By setting the working cylinder and the splint, the movement of the tightening head drives the telescopic column to overcome the elastic force of the working spring and slide along the limit groove of the outer wall of the working cylinder. The sliding of the telescopic column drives the three sets of connecting rods on the outer wall of the lifting block to move synchronously, and then the movement of the connecting rod drives the splint to slide along the outer wall of the picking frame and fit with the side wall of the working screw. At the same time, the sliding of the telescopic column drives the rotating support and the positioning support groove to abut against each other, so as to realize the positioning operation after the splint and the working screw are fitted, so as to avoid the working screw from being offset during the picking process and the working screw from being positioned inaccurately, which will cause damage to the installation part of the printer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the picking frame structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the pickup frame of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional unfolding structure of the working cylinder and the telescopic column of the present invention;

[0026] Figure 5 It is a schematic diagram of the working structure of the working cylinder and the telescopic column of the present invention;

[0027] Figure 6 It is a schematic diagram of the positioning frame structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the internal structure of the positioning frame of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection structure between the loading frame and the retrieving frame of the present invention;

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the feeding frame of the present invention;

[0031] Fig.10 It is a schematic diagram of the cross-sectional structure of the material taking frame of the present invention.

[0032] In the figure: 1. Pick-up frame; 101. Working cylinder; 102. Limiting groove; 103. Telescopic column; 104. Working block; 105. Rotating pillar; 106. Positioning support groove; 107. Lifting block; 108. Working spring; 109. Connecting rod; 110. Clamp; 2. Tightening head; 3. Working screw; 4. Base; 5. Y-axis positioning assembly; 6. Positioning frame; 601. Worm; 602. Hand wheel; 603. Worm wheel; 604. Connecting frame; 605. Connecting support plate; 606. Positioning plate; 607. Positioning Guide groove; 7. Crossbeam; 8. X-axis positioning assembly; 9. Z-axis positioning assembly; 10. Working motor; 11. Loading frame; 1101. Loading motor; 1102. Rotating plate; 1103. Flip plate; 1104. Loading trough plate; 1105. Vibrator; 12. Control box; 13. Printer body; 14. Material picking frame; 1401. Pneumatic push rod; 1402. Lifting plate; 1403. Rotating guide column; 1404. Rotating cylinder; 1405. Rotating guide groove; 1406. Material picking tray; 1407. Material picking trough. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, 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 5In an embodiment of the present invention, a printer screw tightening device includes a pick-up frame 1, the inner wall of the pick-up frame 1 is fixedly connected with a working cylinder 101, the outer wall of the working cylinder 101 is provided with a limiting groove 102, the inner wall of the working cylinder 101 is slidably connected with a telescopic column 103, the circumferential array on the circumferential outer wall of the telescopic column 103 has the same number of connecting columns as the limiting groove 102 and one-to-one corresponding, the bottom end of the telescopic column 103 is fixedly connected with a tightening head 2, the top end of the telescopic column 103 is screwed with a working block 104, and the working block 104 A rotating pillar 105 is fixedly connected to the outer wall, a positioning groove 106 is provided at the connection position between the working cylinder 101 and the rotating pillar 105, a lifting block 107 is screwed on the top of the working block 104, a working spring 108 is fixedly connected to the connection position between the picking frame 1 and the lifting block 107, a connecting rod 109 is screwed on the outer wall of the lifting block 107, one end of the connecting rod 109 is screwed on a clamping plate 110 which is slidably connected to the outer wall of the picking frame 1, and the outer wall of the clamping plate 110 is fitted with a working screw 3 which matches the outer wall of the tightening head 2.

[0035] Based on the above structure, the movement of the tightening head 2 drives the telescopic column 103 to overcome the elastic force of the working spring 108 and slide along the limit groove 102 on the outer wall of the working cylinder 101. The sliding of the telescopic column 103 drives the connecting rod 109 on the outer wall of the lifting block 107 to move synchronously, and then the movement of the connecting rod 109 drives the clamping plate 110 to slide along the outer wall of the picking frame 1 and fit with the side wall of the working screw 3. At the same time, the sliding of the telescopic column 103 drives the rotating support 105 and the positioning support groove 106 to abut against each other, thereby realizing the positioning operation of the clamping plate 110 and the working screw 3 after fitting, thereby avoiding the working screw 3 from being offset during the picking process, and the working screw 3 from being positioned inaccurately, resulting in damage to the installation part of the printer body 13.

[0036] For further information, see Figure 1 A base 4 is provided at the bottom of the picking frame 1, a Y-axis positioning component 5 is fixedly connected to the top of the base 4, a positioning frame 6 is fixedly connected to the top of the Y-axis positioning component 5, a crossbeam 7 is fixedly connected to the top of the base 4 above the Y-axis positioning component 5, an X-axis positioning component 8 is provided on the outer wall of the crossbeam 7, a Z-axis positioning component 9 is provided on the outer wall of the X-axis positioning component 8, a working motor 10 is provided on the outer wall of the Z-axis positioning component 9, the picking frame 1 is installed at the output end of the working motor 10, one side of the positioning frame 6 is located at the top of the base 4 and is fixedly connected to a feeding frame 11, and a control box 12 is fixedly connected to the side of the top of the base 4 away from the feeding frame 11. When working, by setting the X-axis positioning component 8, the Y-axis positioning component 5 and the Z-axis positioning component 9, it is convenient to drive the tightening head 2 to perform spatial positioning operation.

[0037] For further information, see Figures 3 to 5The connection part between the rotating pillar 105 and the positioning support groove 106 is inclined, and three groups of limit grooves 102 and the rotating pillar 105 are provided. When working, by setting the connection part between the rotating pillar 105 and the positioning support groove 106 to be inclined, it is beneficial for the telescopic column 103 to slide and drive the working block 104 to rotate, so that the rotating pillar 105 and the positioning support groove 106 can abut against each other, thereby realizing the positioning operation of the clamping plate 110 and the working screw 3 after being fitted, avoiding the working screw 3 from being offset during the picking process and the inaccurate positioning of the working screw 3.

[0038] For further information, see Figures 3 to 5 The cross section of the clamping plate 110 is arc-shaped, and three groups of clamping plates 110 are arranged. When working, the telescopic column 103 slides to drive the three groups of connecting rods 109 on the outer wall of the lifting block 107 to move synchronously, and then the movement of the connecting rod 109 drives the clamping plate 110 to slide along the outer wall of the picking frame 1 and fit with the side wall of the working screw 3, thereby realizing the fixing operation of the working screw 3 when picking up.

[0039] For further information, see Figure 6 and Figure 7 The inner wall of the positioning frame 6 is provided with a worm 601, one end of the worm 601 is fixedly connected to a hand wheel 602, the meshing surface of the worm 601 is meshed with a worm wheel 603 which is screwed to the inner wall of the positioning frame 6, the outer wall of the worm wheel 603 is fixedly connected to a connecting frame 604, one end of the connecting frame 604 is screwed to a connecting support plate 605, one end of the connecting support plate 605 is screwed to a positioning plate 606 which is slidably connected to the top of the positioning frame 6, and a positioning guide groove 607 is provided at the connection portion between the positioning frame 6 and the positioning plate 606. The outer wall of the positioning plate 606 is in contact with the printer body 13. When working, the hand wheel 602 rotates and the connecting frame 604 is driven to rotate through the meshing of the worm 601 and the worm wheel 603. The rotation of the connecting frame 604 drives the connecting support plate 605 to rotate, and then the rotation of the connecting support plate 605 drives the positioning plate 606 to slide along the outer wall of the positioning guide groove 607. The positioning plate 606 slides and fits with the printer body 13, thereby realizing the rapid positioning operation of the printer body 13 and avoiding the displacement of the printer body 13 when the screws are tightened.

[0040] For further information, see Figure 7 The shape of the connecting frame 604 is cross-shaped, and four groups of connecting support plates 605 are arranged. The four groups of connecting support plates 605 are distributed in equal angles around the center of the connecting frame 604. When working, the hand wheel 602 rotates through the worm 601 and the worm wheel 603 to drive the cross-shaped connecting frame 604 to rotate. The rotation of the connecting frame 604 drives the four groups of connecting support plates 605 to rotate synchronously, thereby realizing the synchronous rotation operation of the four groups of connecting support plates 605.

[0041] For further information, see Figure 6 and Figure 7The cross section of the positioning plate 606 is in an "L" shape. The positioning plate 606 forms a positioning structure through the connecting support plate 605 and the printer body 13. When working, the connecting support plate 605 rotates to drive the positioning plate 606 to slide along the outer wall of the positioning guide groove 607. The positioning plate 606 slides and fits with the printer body 13, realizing a quick positioning operation of the printer body 13 and avoiding the printer body 13 from being offset when the screws are tightened.

[0042] For further information, see Figures 8 to 10 The outer wall of the feeding frame 11 is fixedly connected to a feeding motor 1101, the output end of the feeding motor 1101 is fixedly connected to a rotating disk 1102, the outer wall of the rotating disk 1102 is fixedly connected to a flap 1103, one side of the rotating disk 1102 is provided with a feeding trough plate 1104 fixedly connected to the inner wall of the feeding frame 11, the bottom end of the feeding trough plate 1104 is provided with a vibrator 1105, one end of the feeding trough plate 1104 is fixedly connected to a taking-up device fixedly connected to the outer wall of the feeding frame 11 The inner wall of the material taking frame 14 is fixedly connected with a pneumatic push rod 1401, the output end of the pneumatic push rod 1401 is fixedly connected with a lifting plate 1402, the outer wall of the lifting plate 1402 is fixedly connected with a rotating guide column 1403, the outer wall of the rotating guide column 1403 is movably connected with a rotating cylinder 1404 that rotates with the inner wall of the material taking frame 14, the connecting part of the rotating cylinder 1404 and the rotating guide column 1403 is provided with a rotating guide groove 1405, the top of the rotating cylinder 1404 is fixedly connected to It is connected to a material taking tray 1406, and a material taking trough 1407 is provided on the outer wall of the material taking tray 1406. When working, the feeding motor 1101 drives the flap 1103 on the outer wall of the rotating disk 1102 to rotate, and the rotation of the flap 1103 drives the working screw 3 to fall correctly into the feeding trough plate 1104. Then, the vibrator 1105 works to slide the working screw 3 along the feeding trough plate 1104 to the feeding trough 1407 on the outer wall of the material taking tray 1406, so as to realize the rapid feeding operation of the working screw 3. Next, the pneumatic push rod 1401 drives the rotating guide column 1403 on the outer wall of the lifting plate 1402 to perform lifting operations. The movement of the rotating guide column 1403 drives the rotating cylinder 1404 to rotate back and forth through the rotating guide groove 1405. The reciprocating rotation of the rotating cylinder 1404 drives the material collection groove 1407 on the outer wall of the material collection plate 1406 to rotate synchronously, and transfers the working screw 3 on the outer wall of the material collection groove 1407 to the predetermined position, thereby realizing the precise positioning operation of the working screw 3 and avoiding difficulties in picking up the working screw 3.

[0043] For further information, see Fig. 9The cross section of the flap 1103 is "L"-shaped, and the flaps 1103 are distributed in equal-angle circles along the outer wall edge of the rotating disk 1102. The center of the loading chute plate 1104 coincides with the center of the rotating disk 1102, and the cross section of the loading chute plate 1104 is "U"-shaped. When working, the loading motor 1101 drives the flap 1103 on the outer wall of the rotating disk 1102 to rotate, and the working screw 3 is driven to fall correctly into the loading chute plate 1104 through the rotation of the flap 1103 with an "L"-shaped cross section.

[0044] For further information, see Fig.10 There are two groups of rotating guide grooves 1405, and the rotating guide grooves 1405 are spiral in shape. The material picking tray 1406 forms a reciprocating rotating structure with the material picking frame 14 through the rotating guide column 1403 and the rotating guide grooves 1405. When working, the rotating guide column 1403 moves through the spiral rotating guide grooves 1405 to drive the rotating cylinder 1404 to rotate reciprocatingly. The reciprocating rotation of the rotating cylinder 1404 drives the material picking groove 1407 on the outer wall of the material picking tray 1406 to rotate synchronously, and the working screw 3 on the outer wall of the material picking groove 1407 is transferred to the predetermined position, thereby realizing the precise positioning operation of the working screw 3.

[0045] The working principle of the present invention is: when using the printer screw tightening device, first, the staff places the printer body 13 on the positioning frame 6, and then quickly positions the printer body 13. The staff rotates the hand wheel 602, and the hand wheel 602 rotates through the worm 601 and the worm wheel 603 to drive the cross-shaped connecting frame 604 to rotate. The connection frame 604 rotates to drive the four groups of connecting support plates 605 to rotate synchronously, and then the connecting support plate 605 rotates to drive the positioning plate 606 to slide along the outer wall of the positioning guide groove 607. The positioning plate 606 slides and fits with the printer body 13, thereby realizing the quick positioning operation of the printer body 13 and avoiding the printer body 13 from being offset when the screws are tightened.

[0046] Next, the staff pours the working screw 3 into the feeding frame 11, and then the feeding motor 1101 works to drive the flap 1103 on the outer wall of the rotating disk 1102 to rotate, and the working screw 3 is driven to fall correctly into the feeding trough plate 1104 through the rotation of the flap 1103 with an "L"-shaped cross-section. Then, the vibrator 1105 works to slide the working screw 3 along the feeding trough plate 1104 to the feeding trough 1407 on the outer wall of the feeding tray 1406, thereby realizing the rapid feeding operation of the working screw 3.

[0047] Next, the pneumatic push rod 1401 drives the rotating guide column 1403 on the outer wall of the lifting plate 1402 to perform lifting operations. The movement of the rotating guide column 1403 drives the rotating cylinder 1404 to reciprocate through the spiral rotating guide groove 1405. The reciprocating rotation of the rotating cylinder 1404 drives the material collection groove 1407 on the outer wall of the material collection plate 1406 to rotate synchronously, and transfers the working screw 3 on the outer wall of the material collection groove 1407 to the predetermined position, thereby realizing the precise positioning operation of the working screw 3 and avoiding the difficulty in picking up the working screw 3.

[0048] Next, the X-axis positioning component 8 works to drive the tightening head 2 to move above the material picking slot 1407. Next, the Z-axis positioning component 9 works to drive the tightening head 2 to cooperate with the top of the working screw 3, so that the movement of the tightening head 2 drives the telescopic column 103 to overcome the elastic force of the working spring 108 and slide along the limit groove 102 on the outer wall of the working cylinder 101. The sliding of the telescopic column 103 drives the three groups of connecting rods 109 on the outer wall of the lifting block 107 to move synchronously, and then the movement of the connecting rod 109 drives the splint 110 to slide along the outer wall of the picking frame 1 and fit with the side wall of the working screw 3. At the same time, the sliding of the telescopic column 103 drives the rotating pillar 105 and the positioning support groove 106 to abut against each other, thereby realizing the positioning operation of the splint 110 and the working screw 3 after they are fitted, thereby avoiding the working screw 3 from being offset during the picking process and the working screw 3 from being positioned inaccurately, resulting in damage to the installation part of the printer body 13.

[0049] Next, the tightening head 2 is driven to move to the installation position of the printer body 13 through the X-axis positioning component 8, the Y-axis positioning component 5 and the Z-axis positioning component 9. Then, when the working screw 3 is in contact with the printer body 13, the working screw 3 moves through the movement of the tightening head 2 to drive the rotating support 105 and the positioning support groove 106 to move away from each other, and then the rotating support 105 is engaged with the limit groove 102. At the same time, the elastic force of the working spring 108 drives the splint 110 and the working screw 3 away from each other through its own elastic force, so that the splint 110 and the working screw 3 are automatically disengaged, which is convenient for tightening the working screw 3.

[0050] Finally, the working motor 10 drives the tightening head 2 to rotate through the picking frame 1, and the tightening head 2 rotates through the Z-axis positioning component 9 to drive the working screw 3 on the outer wall of the printer body 13 to perform a tightening operation.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printer screw tightening device, characterized in that: The invention comprises a picking frame (1), wherein the inner wall of the picking frame (1) is fixedly connected to a working cylinder (101), the outer wall of the working cylinder (101) is provided with a limiting groove (102), the inner wall of the working cylinder (101) is slidably connected to a telescopic column (103), the circumferential outer wall of the telescopic column (103) has a circumferential array of connecting columns of the same number as the limiting groove (102) and corresponding one to one, the bottom end of the telescopic column (103) is fixedly connected to a tightening head (2), the top end of the telescopic column (103) is screwed to a working block (104), and the outer wall of the working block (104) is fixedly connected to a rotating support (1 05), a positioning support groove (106) is provided at the connection portion between the working cylinder (101) and the rotating support (105), a lifting block (107) is screwed to the top of the working block (104), a working spring (108) is fixedly connected to the connection portion between the picking frame (1) and the lifting block (107), a connecting rod (109) is screwed to the outer wall of the lifting block (107), one end of the connecting rod (109) is screwed to a clamping plate (110) which is slidably connected to the outer wall of the picking frame (1), and the outer wall of the clamping plate (110) is fitted with a working screw (3) which matches the outer wall of the tightening head (2); A base (4) is provided below the picking frame (1), a Y-axis positioning assembly (5) is fixedly connected to the top of the base (4), a positioning frame (6) is fixedly connected to the top of the Y-axis positioning assembly (5), a crossbeam (7) is fixedly connected to the top of the base (4) above the Y-axis positioning assembly (5), an X-axis positioning assembly (8) is provided on the outer wall of the crossbeam (7), a Z-axis positioning assembly (9) is provided on the outer wall of the X-axis positioning assembly (8), a working motor (10) is provided on the outer wall of the Z-axis positioning assembly (9), the picking frame (1) is mounted on the output end of the working motor (10), a feeding frame (11) is fixedly connected to the top of the base (4) and is located on one side of the positioning frame (6); a control box (12) is fixedly connected to the top of the base (4) away from the feeding frame (11); The connection portion between the rotating support pillar (105) and the positioning support groove (106) is inclined, and three groups of the limiting groove (102) and the rotating support pillar (105) are provided; The cross section of the clamping plate (110) is in the shape of an arc, and the clamping plate (110) is provided in three groups; The inner wall of the positioning frame (6) is provided with a worm (601), one end of the worm (601) is fixedly connected to a hand wheel (602), the meshing surface of the worm (601) is meshed with a worm wheel (603) screwed to the inner wall of the positioning frame (6), the outer wall of the worm wheel (603) is fixedly connected to a connecting frame (604), one end of the connecting frame (604) is screwed to a connecting support plate (605), one end of the connecting support plate (605) is screwed to a positioning plate (606) slidably connected to the top of the positioning frame (6), a positioning guide groove (607) is provided at the connection portion between the positioning frame (6) and the positioning plate (606), and the outer wall of the positioning plate (606) is attached to the printer body (13); The connecting frame (604) has a cross-shaped appearance, and four groups of connecting support plates (605) are provided, and the four groups of connecting support plates (605) are distributed in a circle at equal angles about the center of the connecting frame (604); The cross section of the positioning plate (606) is in an "L" shape, and the positioning plate (606) forms a positioning structure by connecting the support plate (605) and the printer body (13); The outer wall of the feeding frame (11) is fixedly connected to a feeding motor (1101), the output end of the feeding motor (1101) is fixedly connected to a rotating disk (1102), the outer wall of the rotating disk (1102) is fixedly connected to a flap (1103), one side of the rotating disk (1102) is provided with a feeding chute plate (1104) fixedly connected to the inner wall of the feeding frame (11), the bottom end of the feeding chute plate (1104) is provided with a vibrator (1105), one end of the feeding chute plate (1104) is fixedly connected to a retrieving frame (14) fixedly connected to the outer wall of the feeding frame (11), and the inner wall of the retrieving frame (14) is fixedly connected to the outer wall of the feeding frame (11). A pneumatic push rod (1401) is fixedly connected, the output end of the pneumatic push rod (1401) is fixedly connected to a lifting plate (1402), the outer wall of the lifting plate (1402) is fixedly connected to a rotating guide column (1403), the outer wall of the rotating guide column (1403) is movably connected to a rotating cylinder (1404) that rotates with the inner wall of the material taking frame (14), a rotating guide groove (1405) is provided at the connection portion between the rotating cylinder (1404) and the rotating guide column (1403), the top end of the rotating cylinder (1404) is fixedly connected to a material taking plate (1406), and the outer wall of the material taking plate (1406) is provided with a material taking groove (1407); The cross section of the flap (1103) is in an "L" shape; the flaps (1103) are distributed in a circle at equal angles along the outer wall edge of the rotating disk (1102); the center of the loading chute plate (1104) coincides with the center of the rotating disk (1102); and the cross section of the loading chute plate (1104) is in a "U" shape; The rotating guide grooves (1405) are provided in two groups, and the rotating guide grooves (1405) are spiral in shape. The material taking plate (1406) forms a reciprocating rotating structure with the material taking frame (14) through the rotating guide pillars (1403) and the rotating guide grooves (1405); When in use, first, the staff places the printer body (13) on the positioning frame (6), then performs a rapid positioning operation on the printer body (13), and the staff rotates the hand wheel (602), and the hand wheel (602) rotates through the meshing of the worm (601) and the worm wheel (603) to drive the cross-shaped connecting frame (604) to rotate, and the connecting frame (604) rotates to drive the four groups of connecting support plates (605) to rotate synchronously, and then the connecting support plates (605) rotate to drive the positioning plate (606) to slide along the outer wall of the positioning guide groove (607), and the positioning plate (606) slides and fits with the printer body (13), thereby realizing a rapid positioning operation on the printer body (13) and preventing the printer body (13) from being offset when the screws are tightened; Next, the staff pours the working screw (3) into the feeding frame (11), and then the feeding motor (1101) operates to drive the flap (1103) on the outer wall of the rotating disk (1102) to rotate, and the working screw (3) is driven to fall correctly into the feeding trough plate (1104) through the rotation of the flap (1103) with an "L"-shaped cross section. Then, the vibrator (1105) operates to slide the working screw (3) along the feeding trough plate (1104) into the feeding trough (1407) on the outer wall of the feeding disk (1406), thereby realizing a quick feeding operation of the working screw (3); Next, the pneumatic push rod (1401) drives the rotating guide column (1403) on the outer wall of the lifting plate (1402) to perform a lifting operation. The rotating guide column (1403) moves through the spiral rotating guide groove (1405) to drive the rotating cylinder (1404) to rotate back and forth. The reciprocating rotation of the rotating cylinder (1404) drives the material collection groove (1407) on the outer wall of the material collection plate (1406) to rotate synchronously, and the working screw (3) on the outer wall of the material collection groove (1407) is transferred to a predetermined position, thereby realizing a precise positioning operation of the working screw (3) and avoiding difficulty in picking up the working screw (3). Next, the X-axis positioning assembly (8) works to drive the tightening head (2) to move to the top of the material taking trough (1407). Next, the Z-axis positioning assembly (9) works to drive the tightening head (2) to cooperate with the top of the working screw (3), so that the movement of the tightening head (2) drives the telescopic column (103) to overcome the elastic force of the working spring (108) and slide along the limit groove (102) on the outer wall of the working cylinder (101). The sliding of the telescopic column (103) drives the three groups of connecting rods (109) on the outer wall of the lifting block (107) to move synchronously, and the lifting block (107) is lifted. The movement of the connecting rod (109) drives the clamping plate (110) to slide along the outer wall of the picking frame (1) and fit with the side wall of the working screw (3). At the same time, the telescopic column (103) slides and drives the rotating support (105) and the positioning support groove (106) to abut against each other, thereby realizing the positioning operation after the clamping plate (110) and the working screw (3) are fitted together, thereby preventing the working screw (3) from being offset during the picking process, and preventing the working screw (3) from being positioned inaccurately, resulting in damage to the installation part of the printer body (13); Next, the tightening head (2) is driven to move to the installation position of the printer body (13) through the X-axis positioning component (8), the Y-axis positioning component (5) and the Z-axis positioning component (9), and then the working screw (3) moves when the working screw (3) is in contact with the printer body (13), and the rotating support (105) and the positioning support groove (106) are driven to move away from each other through the movement of the tightening head (2), and then the rotating support (105) and the limit groove (102) are engaged. At the same time, the elastic force of the working spring (108) drives the clamping plate (110) and the working screw (3) to move away from each other through its own elastic force, so that the clamping plate (110) and the working screw (3) are automatically separated, which facilitates the tightening operation of the working screw (3); Finally, the working motor (10) works to drive the tightening head (2) to rotate through the picking frame (1), and the rotation of the tightening head (2) drives the working screw (3) on the outer wall of the printer body (13) to perform a tightening operation through the Z-axis positioning component (9).

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