Multi-shaft screw locking device with automatic positioning function

Abstract

The utility model discloses an automatic positioning multi-shaft screw locking device which comprises a working table, an automatic positioning device, a screw locking device, a screw locking device, a screw locking device, a screw locking device and a screw locking device, and a portal frame is arranged on the working table in a spanning mode and provided with X-axis driving equipment and Z-axis driving equipment; the positioning jig is arranged on the Y-axis driving equipment in a sliding manner; the screw locking mechanism is provided with a screwdriver driven in a rotating mode and a position sensing device. The grabbing mechanism is elastically arranged on the screw locking mechanism in a sliding mode and comprises a hanging plate and an adsorption pipe, a screwdriver penetrates through a variable-pressure cavity of the hanging plate and a variable-pressure cavity of the adsorption pipe, the top of the variable-pressure cavity is in sealed butt joint with the screwdriver, and a counterbore is formed in the bottom of the variable-pressure cavity. The screw locking device can solve the problems that an existing screw locking device cannot automatically adjust and position the relative positions of a display screen support and a screw on a three-dimensional layer, the application range is limited, the screw is loosened and the screw locking quality is poor due to the fact that the screw is rubbed and dragged when a screwdriver is used for locking the screw.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen support manufacturing device technical field, specifically a kind of multi-axis screw locking device of automatic positioning. BACKGROUND

[0002] The existing screw locking device is relatively simple, and can only assemble screws on the regular and simple points of the display screen support. It cannot automatically adjust and position the relative positions of the display screen support and the screws in the three-dimensional level, which limits the scope of application. When the screwdriver used for locking screws is pulled out, it will also produce friction on the screws, causing the screws to loosen. The quality of the locked screws is not good. INVENTION CONTENTS

[0003] The utility model aims at: in order to solve the existing screw locking device cannot automatically adjust and position the relative positions of the display screen support and the screws in the three-dimensional level, which limits the scope of application. When the screwdriver used for locking screws is pulled out, it will also produce friction on the screws, causing the screws to loosen. The quality of the locked screws is not good. A kind of multi-axis screw locking device of automatic positioning is provided.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of multi-axis screw locking device of automatic positioning, comprising:

[0005] A workbench is provided with a plurality of Y-axis drive devices parallel to each other. The outer side of the Y-axis drive device is spanned by a gantry. The two sides of the gantry are provided with a screw supply device. An X-axis drive device is provided on the gantry. A Z-axis drive device is slidably arranged on the X-axis drive device.

[0006] A positioning jig is slidably arranged on the Y-axis drive device. A display screen support is positioned on the positioning jig.

[0007] A screw locking mechanism is rotatably driven by a screwdriver. A position sensing device is also provided on the screw locking mechanism.

[0008] A grabbing mechanism is elastically slidably arranged on the screw locking mechanism. It includes a hanging plate and a suction tube. The screwdriver is arranged in the variable pressure cavity of the hanging plate and the suction tube. The top of the variable pressure cavity is sealed and connected to the screwdriver. The side surface is connected to the external negative pressure system through a joint. The bottom side extends a countersunk hole, which is sleeved on the screw.

[0009] Further description of the above technical scheme:

[0010] The Y-axis drive device, X-axis drive device and Z-axis drive device are all linear motors.

[0011] Further description of the above technical scheme:

[0012] The top of the hanging plate is slidably inserted into a movable slot of the screw locking mechanism, and an elastic member is arranged between the movable slot and the hanging plate.

[0013] As a further description of the above technical solution:

[0014] The positioning jig comprises a base slidably connected with the Y-axis driving device, a positioning plate assembled on the base through a threaded pipe, and a display screen support embedded in a positioning slot of the positioning plate.

[0015] As a further description of the above technical solution:

[0016] The side surface of the positioning plate is provided with a hand holding slot.

[0017] As a further description of the above technical solution:

[0018] The side surfaces of the Y-axis driving device and the X-axis driving device are further provided with a drag chain in parallel.

[0019] As a further description of the above technical solution:

[0020] The top of the pressure changing cavity is provided with a sealing ring sleeved on the screwdriver.

[0021] As described above, compared with the prior art, the screw locking device has the following advantages:

[0022] Beneficial effects:

[0023] The screw locking device adjusts the position of the screw locking mechanism on the vertical surface through the X-axis driving device and the Z-axis driving device, so that the adsorption pipe adsorbs and grabs the screws discharged from the screw supply device, and the Y-axis driving device adjusts the position of the display screen support on the positioning jig in the Y-axis direction, thereby adjusting the relative position of the screw and the display screen support in the three-dimensional level. Through the device running process pre-set by the control programming system, the position sensing device is used for real-time identification and correction of the position, the automatic positioning of the screw and the assembly hole on the display screen support is realized, the screw locking operation is completed, and during the operation, the hanging plate is elastically and slidably connected to the screw locking mechanism, the adsorption pipe can guide the screwdriver, thereby ensuring that the screw is fully screwed. After the screw locking operation is completed, the screw locking mechanism moves upward, and the elastic abutment of the countersunk hole to the surface of the screw can reduce the influence of the frictional drag force generated when the screwdriver is pulled out on the screw, and can avoid loosening of the screw. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.

[0025] Fig. 1 It is a structural schematic view of an automatic positioning multi-axis screw locking device.

[0026] Fig. 2 It is a partial sectional view of a screw locking mechanism and a grabbing mechanism in an automatic positioning multi-axis screw locking device.

[0027] Legend:

[0028] 1, workbench; 2, positioning jig; 3, Y-axis driving device; 4, screw feeding device; 5, gantry; 6, X-axis driving device; 7, Z-axis driving device; 8, screw locking mechanism; 9, screwdriver; 10, grabbing mechanism; 11, hanging plate; 12, suction pipe; 13, movable groove; 14, elastic member; 15, pressure changing cavity; 16, joint; 17, pressure attaching assembly; 18, drag chain; 19, buckle hand groove; 20, sealing ring; 21, countersunk hole; 100, display screen support. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "in", "out" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0031] Please refer to Figs. 1-2 The present application provides a technical scheme: an automatic positioning multi-axis screw locking device, comprising:

[0032] A workbench 1 is provided with a plurality of Y-axis driving devices 3 arranged in parallel, the outer side of the Y-axis driving device 3 is provided with a gantry 5, the two sides of the gantry 5 are provided with screw feeding devices 4, the gantry 5 is provided with an X-axis driving device 6, the X-axis driving device 6 is provided with a Z-axis driving device 7 slidingly arranged on the X-axis driving device 6;

[0033] A positioning jig 2 is slidingly arranged on the Y-axis driving device 3, and a display screen support 100 is positioned on the positioning jig 2;

[0034] A screw locking mechanism 8 is provided with a screwdriver 9 rotatingly driven thereon, and a position sensing device is further arranged thereon;

[0035] A grabbing mechanism 10 is elastically slidingly arranged on the screw locking mechanism 8, and comprises a hanging plate 11 and a suction pipe 12, the screwdriver 9 is arranged in a variable pressure cavity 15 of the hanging plate 11 and the suction pipe 12, the top of the variable pressure cavity 15 is sealingly connected with the screwdriver 9, the side surface thereof is connected with an external negative pressure system through a joint 16, and the bottom thereof is sleeved with a screw.

[0036] The bottom of the variable pressure cavity 15 is laterally extended with a countersunk hole 21, the countersunk hole 21 is sleeved with the screw, when the screw is grabbed, the screw is sleeved and preliminarily positioned through the countersunk hole 21, and then the internal gas of the variable pressure cavity 15 is extracted to realize negative pressure adsorption and secondary positioning.

[0037] The Y-axis driving device 3, the X-axis driving device 6 and the Z-axis driving device 7 are all linear motors.

[0038] The top of the hanging plate 11 is slidingly inserted into a movable groove 13 of the screw locking mechanism 8, and an elastic member 14 is arranged between the movable groove 13 and the hanging plate 11.

[0039] The positioning jig 2 comprises a base slidingly connected with the Y-axis driving device 3, a positioning plate assembled on the base through a threaded pipe, and the display screen support 100 is embedded and positioned in a positioning groove of the positioning plate, a side surface of the base is provided with a pressing assembly 17, the pressing assembly 17 is an ACK cylinder, i.e. a corner lower pressing clamping cylinder, which can drive the top pressing plate to rotate and lift to stably press and clamp the display screen support 100 and realize secondary positioning.

[0040] A side surface of the positioning plate is provided with a hand holding groove 19, so as to facilitate the placement and grabbing of the display screen support 100.

[0041] Side surfaces of the Y-axis driving device 3 and the X-axis driving device 6 are further provided with a drag chain 18 in parallel, so as to facilitate the storage of power supply wire groups of electrical equipment on the positioning jig 2, the Z-axis driving device 7 and the screw locking mechanism 8, and to guide and protect the power supply wire groups during the movement of the structure, so as to avoid structural interference.

[0042] The top of the variable pressure chamber 15 is provided with a sealing ring 20 sleeved on the screwdriver 9.

[0043] The working principle of the automatic positioning multi-axis screw locking device of the embodiment includes: in use, the display screen support is positioned on the positioning jig 2, and the surface thereof is pressed and attached by the pressing and attaching assembly 17 for secondary positioning; the position of the screw locking mechanism 8 in the vertical plane is adjusted by the X-axis driving device 6 and the Z-axis driving device 7, so that the adsorption pipe 12 adsorbs and grabs the screw discharged from the screw supply device 4, and the position of the display screen support on the positioning jig 2 in the Y-axis direction is adjusted by the Y-axis driving device 3, so as to realize the adjustment of the relative position of the display screen support and the screw in the three-dimensional plane; the device running process set in advance by the control programming system is used, and the position is identified and corrected in real time by the position sensing device, so as to realize the automatic positioning of the screw and the assembly hole on the display screen support; then, the screwdriver 9 is driven to rotate, and the Z-axis driving device 7 drives the Z-axis direction movement of the screw locking mechanism 8, so as to complete the screw locking operation; during the screw locking operation, the adsorption pipe 12 can guide the screwdriver 9 and control the screwing depth of the screw through the elastic sliding connection of the hanging plate 11 on the screw locking mechanism 8; the screwing depth control can be used in cooperation with the pressure sensor; when the pressure value transmitted by the elastic member 14 sensed by the pressure sensor reaches the set value during the screw locking operation, it indicates that the descending height of the screw locking mechanism 8 and the screwing depth reach the set value, so as to ensure that the screw is fully screwed; after the screw locking operation is completed, the screw locking mechanism 8 moves upward, and the elastic abutment of the screw surface through the countersunk hole 21 can reduce the influence of the frictional drag force generated when the screwdriver 9 is pulled out on the screw, so as to avoid the loosening of the screw.

[0044] As described above, the automatic positioning multi-axis screw locking device of the embodiment has the following beneficial effects compared with the prior art:

[0045] The screw locking device adjusts the position of the screw locking mechanism on the vertical surface through the X-axis driving device and the Z-axis driving device, so that the adsorption pipe adsorbs and grabs the screws discharged from the screw supply device, and adjusts the position of the display screen support on the positioning jig in the Y-axis direction through the Y-axis driving device, thereby realizing the adjustment of the relative position of the screw and the display screen support in the three-dimensional level, and realizing the automatic positioning of the screw and the assembly hole on the display screen support through the device running process set in advance by the control programming system, the real-time identification and correction of the position by the position sensing device, the locking screw operation, and the elastic sliding connection of the hanging plate on the screw locking mechanism, the guidance of the adsorption pipe to the screwdriver, the guarantee of the full screwing of the screw, the upward movement of the screw locking mechanism after the locking screw operation is completed, the elastic abutment of the countersunk hole to the surface of the screw, the reduction of the influence of the frictional dragging force generated when the screwdriver is pulled out on the screw, and the avoidance of the loosening of the screw.

[0046] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An automatically positioned multi-spindle screw locking device, characterized in that, Include: Workbench, a plurality of Y-axis drive devices are arranged in parallel on the workbench, the outer side of the Y-axis drive device is crossed with a gantry, the two sides of the gantry are provided with screw feeding devices, the gantry is provided with X-axis drive device, the X-axis drive device is provided with Z-axis drive device slidingly; Positioning fixture, slidingly arranged on the Y-axis drive device, the display screen support is positioned on the positioning fixture; Lock screw mechanism, a screwdriver is rotatably driven on the lock screw mechanism, and a position sensing device is further arranged on the lock screw mechanism; Grabbing mechanism, which is elastically slidingly arranged on the lock screw mechanism, includes a hanging plate and a suction pipe, the screwdriver is arranged in the variable pressure cavity of the hanging plate and the suction pipe, the top of the variable pressure cavity is sealingly connected with the screwdriver, the side surface is connected with the external negative pressure system through the joint, and the bottom side extends a countersunk hole, the countersunk hole is sleeved on the screw.

2. An automatically positioning multi-spindle screw locking device according to claim 1, characterized in that, The Y-axis drive device, the X-axis drive device and the Z-axis drive device are all linear motors.

3. An automatically positioning multi-spindle screw locking device according to claim 1, wherein, The top of the hanging plate is slidingly inserted into the movable groove of the lock screw mechanism, and an elastic member is arranged between the movable groove and the hanging plate.

4. The automatically positioning multi-spindle screw locker according to claim 1, wherein, The positioning fixture includes a base slidingly connected with the Y-axis drive device, a positioning plate assembled on the base through a threaded pipe and a cooperation bolt, the display screen support is embedded and positioned in the positioning groove of the positioning plate, the side surface of the base is provided with a pressing assembly, and the pressing assembly is an ACK air cylinder.

5. An automatically positioning multi-spindle screw locking device according to claim 4, characterized in that The side surface of the positioning plate is provided with a buckle slot.

6. An automatically positioning multi-spindle screw locker according to claim 1, wherein, The side surface of the Y-axis drive device and the X-axis drive device is also provided with a drag chain in parallel.

7. The automatically positioning multi-spindle screw locker according to claim 1, wherein, The top of the variable pressure cavity is provided with a sealing ring sleeved on the screwdriver.

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