CN210756292U

CN210756292U - Automatic screw locking device for combined workpiece

Info

Publication number: CN210756292U
Application number: CN201921548868.XU
Authority: CN
Inventors: 陈斌; 郑龙
Original assignee: Changzhou Kellum Intelligent Equipment Co ltd
Current assignee: Changzhou Kellum Intelligent Equipment Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-16
Anticipated expiration: 2029-09-17

Abstract

The utility model provides an automatic screw locking device for combined workpieces, which comprises a machine table, an upper die, a lower die, a die closing cylinder, a workpiece clamp and a screw locking mechanism; the workpiece comprises an upper cover, a lower cover and a middle body, and the upper cover and the lower cover can be locked and fixed by screws; the machine table comprises an upper die base and a workbench, a die closing cylinder is arranged on the upper die base, an upper die is connected with the die closing cylinder, the die closing cylinder can drive the upper die to move up and down, and the upper die is matched with the upper cover in shape; the lower die is fixed on the workbench and is matched with the lower cover in shape; the intermediate body is arranged on the lower cover, and the workpiece clamp can clamp the intermediate body; the screw locking mechanism is symmetrically arranged on the workbench by taking the lower die as a center, and comprises an electric screwdriver and a screw sucker, the screw sucker can adsorb a screw, and the screw sucker is arranged at the front end of the electric screwdriver; the electric screwdriver can lock the screws to the upper cover and the lower cover. The utility model discloses can solve the problem that the operation of locking the screw in-process is inconvenient and work efficiency is low.

Description

Automatic screw locking device for combined workpiece

Technical Field

The utility model belongs to the technical field of the work piece equipment, concretely relates to an automatic lock screw device for combination formula work piece.

Background

For the installation of combined workpieces, screws are usually locked by using tools such as an electric screwdriver and the like so as to achieve an easy and efficient assembling process, but for mass production, the electric screwdriver needs an operator to fix the workpieces firstly and then install the screws in a pair of screw holes one by one, so that the operation is inconvenient, the working efficiency is very low, and the automatic screw locking device for the combined workpieces is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic lock screw device for combination formula work piece to solve the inconvenient and low problem of work efficiency of operation of locking the screw in-process.

The utility model provides a following technical scheme:

an automatic screw locking device for a combined workpiece comprises a machine table, an upper die, a lower die, a die assembly cylinder, a workpiece clamp and a screw locking mechanism;

the machine table can support a workpiece to be processed, the workpiece comprises an upper cover, a lower cover and an intermediate body, the upper cover and the lower cover are used for coating the intermediate body, screw holes which are matched with each other are horizontally formed in the side walls of the upper cover and the lower cover respectively, and the upper cover and the lower cover can be locked and fixed through screws;

the machine table comprises an upper die base and a workbench which are arranged up and down, the die closing cylinder is arranged on the upper die base, the upper die is fixedly connected to a piston rod of the die closing cylinder, the upper die is positioned below the upper die base, the die closing cylinder can drive the upper die to move up and down, and the upper die is matched with the upper cover in shape;

the lower die is fixed on the workbench, is positioned right below the upper die and is matched with the lower cover in shape;

the middle body is arranged on the lower cover, and the work piece clamp can clamp the middle body;

the even number of screw locking mechanisms are symmetrically arranged on the workbench by taking the lower die as a center, each screw locking mechanism comprises an electric screwdriver and a screw sucker, each screw sucker can adsorb a screw, each screw sucker is positioned on a horizontal extension line of each screw hole, each screw sucker is arranged at the front end of the corresponding electric screwdriver, and each screw sucker is connected with a negative pressure generator through a hose and a first electromagnetic valve; the electric screwdriver can lock the screws to the upper cover and the lower cover.

Preferably, a plurality of suction holes are formed in the upper die, the suction holes are connected with the negative pressure generator through a hose and a second electromagnetic valve, and the upper die can absorb the upper cover.

Preferably, the die-closing device further comprises a control key and a controller, wherein the control key is installed on the workbench and connected with the controller, and the controller is respectively connected with the first electromagnetic valve, the second electromagnetic valve, the electric screwdriver and the die-closing cylinder.

Preferably, a safety grating is installed on the front side of the workbench and connected with the controller.

Preferably, the control key is located outside the safety grating.

Preferably, the work holder is attached to a robot gripper, and the robot gripper can feed the work holder holding the intermediate body onto the lower cover from the rear side of the table; the controller is connected with the robot paw.

Preferably, a plurality of tool holders are mounted on the workbench, and the electric screwdriver is horizontally mounted on the tool holders; the tool apron is provided with a positioning hole for the tool bit of the electric screwdriver to pass through.

Preferably, a display screen is further installed on one side of the machine table, and the controller is connected with the display screen.

Preferably, an alarm is further installed on the upper die base, and the controller is connected with the alarm.

The utility model has the advantages that: the utility model discloses utilize the compound die cylinder, go up mould and lower mould and compress tightly fixed work piece, the screw sucking disc with the screw adsorb be fixed in electric screwdriver's tool bit on, fix a plurality of electric screwdriver on the workstation can install fixedly the work piece with a plurality of screw tightening upper cover and lower cover simultaneously, realize high-efficiently. Meanwhile, the robot paw and the workpiece clamp are used for feeding the intermediate of the workpiece and clamping the intermediate in the screw locking process, so that the intermediate is prevented from shaking, and the stability of the screw locking process is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention, in which only a part of the structure of the machine is shown for easy understanding;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic top view of the upper mold base;

labeled as: 1. an upper cover; 2. a lower cover; 3. an intermediate; 4. an upper die; 5. a lower die; 6. a die closing cylinder; 7. a workpiece holder; 8. a screw locking mechanism; 9. an upper die holder; 10. a work table; 11. an electric screwdriver; 12. a screw sucker; 13. a tool apron; 14. a control key; 15. a safety grating; 16. a display screen; 17. an alarm; 18. a robot gripper.

Detailed Description

As shown in fig. 1 to 3, the present embodiment is an automatic screw locking device for a combined workpiece, which is used for locking and installing a workpiece including an upper cover 1, a lower cover 2 and a middle body 3, wherein the upper cover 1 and the lower cover 2 are used for covering the middle body 3, screw holes which are matched with each other are horizontally arranged on side walls of the upper cover 1 and the lower cover 2, respectively, and the upper cover 1 and the lower cover 2 can be locked and fixed by screws.

The utility model discloses a board, go up mould 4, lower mould 5, compound die cylinder 6, work piece holder 7, lock screw mechanism 8 and controller.

As shown in fig. 1 and 2, the machine platform includes an upper die base 9 and a workbench 10 which are arranged up and down, the die closing cylinder 6 is installed on the upper die base 9, the upper die 4 is fixedly connected to a piston rod of the die closing cylinder 6, the upper die 4 is located below the upper die base 9, the die closing cylinder 6 can drive the upper die 4 to move up and down, and the upper die 4 is matched with the upper cover 1 in shape; a plurality of suction holes (not shown) are arranged in the upper die 4, the suction holes are connected with a negative pressure generator through a hose and a second electromagnetic valve, and the upper die 4 can suck the upper cover 1 through the suction holes, so that the upper cover 1 and the upper die 4 are pressed downwards on the intermediate body 3 together.

The lower die 5 is fixed on the workbench 10, the lower die 5 is positioned right below the upper die 4, and the lower die 5 is matched with the lower cover 2 in shape; before work, the lower cover 2 is placed on the lower die 5, the intermediate body 3 is placed on the lower cover 2, and the intermediate body 3 is clamped by the workpiece clamp from the rear side of the intermediate body all the time in the screw locking process to prevent the intermediate body from shaking.

As shown in fig. 2 and 3, four screw locking mechanisms 8 are symmetrically installed on a table 10 with the lower mold 5 as a center, the screw locking mechanisms 8 include an electric screw driver 11 and a screw suction cup 12, and the screw suction cup 12 can suck a screw and is connected to a negative pressure generator through a hose and a first solenoid valve. The screw sucker 12 is positioned on a horizontal extension line of the screw hole, and the screw sucker 12 is arranged at the front end of the tool bit of the electric screwdriver 11; the electric screwdriver 11 can lock the screws to the upper cover 1 and the lower cover 2. When the electric screwdriver 11 locks the screw, the first electromagnetic valve is closed, and the screw suction cup 12 eliminates the suction force to the screw. The workbench 10 is provided with a plurality of tool holders 13, the electric screw driver 11 is horizontally arranged on the tool holders 13, and the tool holders 13 fix the electric screw driver 11 to ensure that the electric screw driver 11 stably locks screws on a workpiece. The tool post 13 is provided with a positioning hole for the tool bit of the electric screwdriver 11 to pass through, and the positioning hole further positions and guides the movement of the tool bit, so that the tool bit can accurately move forwards.

The device also comprises a control key 14 and a controller, wherein the controller is arranged in a case below the workbench 10, the control key 14 is arranged on the machine table, the control key 14 is connected with the controller, and the controller is respectively connected with the first electromagnetic valve, the second electromagnetic valve, the electric screwdriver 11 and the die closing cylinder 6 to control the actions of the first electromagnetic valve, the second electromagnetic valve, the electric screwdriver 11 and the die closing cylinder 6. And a display screen 16 is further installed on one side of the machine platform, and the controller is connected with the display screen 16.

As shown in fig. 2, a safety light barrier 15 is installed on the front side of the workbench 10, the safety light barrier 15 provides protection for an operator, and the safety light barrier 15 is connected with a controller. After the operator puts the upper cover 1 and the lower cover 2 on the upper die 4 and the lower die 5 from the front side of the workbench 10 respectively, and then puts a screw on the screw sucker 12, the controller can start the equipment only when the safety grating 15 detects that the operator leaves the working area of the workbench. The control key is positioned at the outer side of the safety grating, and the control key cannot enter the detection range of the safety grating when being operated. Still install alarm 17 on the board, alarm 17 is connected to the controller, but alarm 17 audible-visual alarm avoids locking screw in-process operator's health to get into the operating area.

As shown in fig. 3, the workpiece holder 7 is attached to a robot gripper 18, the workpiece holder 7 clamps the intermediate body of the workpiece using a cylinder-driven holder, and the robot gripper 18 can feed the workpiece holder 7 holding the intermediate body 3 onto the lower cover 2 from the rear side of the table 10, and fix the intermediate body 3 at all times during the screw locking process, thereby preventing the intermediate body 3 from wobbling.

The working process of the device is as follows: the first electromagnetic valve and the second electromagnetic valve are opened, the lower cover 2 is placed on the lower die 5 from the front side of the workbench 10, the upper cover 1 is placed under the upper die 4 and is fixedly absorbed by the absorption holes, the four screws are respectively placed on the four screw suction cups 12, and the four screws are fixedly absorbed on the tool bit of the electric screwdriver 11 by the screw suction cups 12. A starting switch in a control key is pressed, a robot claw 18 sends a workpiece clamp 7 clamping an intermediate body to the lower cover 2 from the rear side of the workbench 10, a controller controls a die assembly cylinder 6 to act, an upper die 4 and a lower die 5 are driven to be assembled, so that screw holes of the upper cover 1 and the lower cover 2 are aligned with each other, then the controller closes a first electromagnetic valve and a second electromagnetic valve, four electric screwdrivers 11 are started to lock screws to the upper cover 1 and the lower cover 2 simultaneously, the locking of the screws to the workpiece is completed, and the workpiece locked by the screws is taken away from the workbench 10 by the robot claw 18.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic screw locking device for a combined workpiece is characterized by comprising a machine table, an upper die, a lower die, a die closing cylinder, a workpiece clamp and a screw locking mechanism;

2. The automatic screw locking device for combined workpieces as claimed in claim 1, wherein a plurality of suction holes are provided in the upper mold, the suction holes are connected to the negative pressure generator through a hose and a second solenoid valve, and the upper mold can absorb the upper cover.

3. The automatic screw locking device for the combined workpiece according to claim 2, further comprising a control button and a controller, wherein the control button is mounted on the workbench and connected with the controller, and the controller is respectively connected with the first electromagnetic valve, the second electromagnetic valve, the electric screw driver and the die closing cylinder.

4. The automatic screw locking device for combined workpieces according to claim 3, wherein a safety grating is installed on the front side of the workbench, and the safety grating is connected with the controller.

5. The automatic screw locking device for combined workpieces according to claim 4, wherein the control button is located outside the safety grating.

6. The automatic screw locking device for a combined workpiece according to claim 4, wherein the workpiece holder is mounted on a robot claw which can feed the workpiece holder holding the intermediate body onto the lower cover from the rear side of the table; the controller is connected with the robot paw.

7. The automatic screw locking device for combined workpieces according to any one of claims 1 to 4, wherein a plurality of tool seats are mounted on the worktable, and the electric screw driver is horizontally mounted on the tool seats; the tool apron is provided with a positioning hole for the tool bit of the electric screwdriver to pass through.

8. The automatic screw locking device for the combined workpiece according to claim 6, wherein a display screen is further installed on one side of the machine table, and the controller is connected with the display screen.

9. The automatic screw locking device for the combined workpiece according to claim 8, wherein an alarm is further installed on the upper die holder, and the controller is connected with the alarm.