A mechanism for double-sided screw locking of workpieces

Abstract

The utility model provides a kind of mechanism for double-sided lock screw of workpiece, it can accurately, efficiently complete the screw lock of two sides of double workpiece, improve assembly quality and production efficiency, reduce artificial cost by automated process, it includes: bottom plate;Vertical frame body;X direction drive module;Z axis drive module;Lock screw subassembly;Screw machine;Two groups of Y axis drive module;Two groups of vertical frame;Two groups of workpiece clamping mechanism;And two groups of rotary motor;The opposite rear of bottom plate is provided with a vertical frame body, a X direction drive module is provided on the vertical frame body, the output of X direction drive module is provided with a Z axis drive module, the output of Z axis drive module is fixed with the lock screw subassembly, the screw machine is arranged on the upper portion of the bottom plate by mounting bracket, and the screw machine is arranged in the position directly below the lock screw subassembly located in the central position of X axis direction, the front of bottom plate two sides is respectively provided with a group of Y axis drive module.

Description

Technical Field

[0001] This utility model relates to the technical field of double-sided locking structures, specifically a mechanism for locking screws on both sides of a workpiece. Background Technology

[0002] In product assembly, traditional assembly methods rely on manual operation for workpieces requiring screw tightening on both sides. This results in low efficiency, uneven screw tightening torque, and inconsistent assembly quality. With the increasing automation in manufacturing, there is an urgent need for an automated mechanism capable of efficiently and accurately performing double-sided screw tightening on two workpieces to meet the demands of large-scale, high-quality production. Currently, most screw tightening equipment on the market is only suitable for single-sided screw tightening and struggles to effectively handle the complex process of double-sided screw tightening. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a mechanism for fastening screws on both sides of a workpiece. Through an automated process, it can accurately and efficiently complete the screw fastening work on both sides of two workpieces, improving assembly quality and production efficiency while reducing labor costs.

[0004] A mechanism for locking screws on both sides of a workpiece, characterized in that it comprises: Base plate; Vertical frame; X-axis drive module; Z-axis drive module; Screw fastening assembly; Screw machine; Two sets of Y-axis drive modules; Two sets of vertical frames; Two sets of workpiece clamping mechanisms; And two sets of rotating motors; A vertical frame is provided at the rear of the base plate. An X-axis drive module is provided on the vertical frame. A Z-axis drive module is provided at the output end of the X-axis drive module. The screw-locking assembly is fixedly mounted at the output end of the Z-axis drive module. The screw-locking machine is arranged on the upper part of the base plate through a mounting bracket, and the screw-locking machine is located directly below the screw-locking assembly located at the center of the X-axis. A set of Y-axis drive modules is provided on both sides of the front part of the base plate. Each vertical frame is fixedly mounted on the output end of the corresponding Y-axis drive module. A workpiece clamping mechanism is connected between the front plate and the rear plate of each set of vertical frames through bearings. A rotary motor is fixedly mounted on the front plate of each set of vertical frames. The rotary motor is connected to the corresponding front convex shaft of the vertical frame. The rotary motor drives the workpiece clamping mechanism to rotate.

[0005] Its further features are: The workpiece clamping mechanism includes a support plate, two lower convex plates on both sides, a clamping cylinder, and clamping blocks. The support plate is provided with a contour positioning block. The workpiece is placed on the upper surface of the support plate and positioned by the contour positioning block. The bottom surface of the support plate is provided with a clamping cylinder. The clamping arms at both ends of the clamping cylinder pass through the avoidance guide groove of the support plate and are respectively fixed to the corresponding clamping blocks. The clamping blocks clamp the workpiece under the drive of the clamping cylinder. The lower convex plates on both sides of the support plate are respectively used to correspond to the front plate or the rear plate of the vertical frame through bearings. The workpiece clamping mechanism also includes a flipping pressure bar mechanism, which includes a rotating motor and a pressure bar. The rotating motor is fixed to one side of the support plate, and the output end of the rotating motor is connected to one end of the pressure bar. After the workpiece is fixed in position and clamped by the clamping block, the rotating motor drives the pressure bar to block the upper surface of the workpiece, ensuring that the workpiece is not easily displaced after being flipped into a vertical state. The two sets of Y-axis drive modules, together with the workpiece clamping mechanism, are arranged symmetrically with respect to the X-axis central plane of the screw machine; The screw fastening assembly is a screw tightening machine, and the bottom of the screw tightening machine is a magnetic head, which is used to reliably attract the screw head on the screw tightening machine; The output end of the rotary motor is also equipped with a reducer. The rotary motor is then connected to the corresponding front convex shaft of the vertical frame through the reducer. The front convex shaft passes through the bearing and is connected to the front lower convex plate of the support plate, which ensures that the vertical flipping of the workpiece is stable and reliable.

[0006] After adopting the above technical solution, both the upper and lower surfaces of the workpiece in its vertical state need to be fastened with screws. The workpiece to be screwed is placed on the workpiece clamping mechanism, the equipment is started, and the workpiece clamping mechanism automatically positions and clamps the workpiece. The screw-locking assembly picks up the screw from the screw machine and moves to the screw-locking position to lock the screw. Then, the corresponding rotary motor drives the workpiece clamping mechanism to rotate 90°. The screw-locking assembly picks up the screw from the screw machine according to the instruction and performs the screw-locking operation on the upper surface of the workpiece. After the upper surface of the workpiece is screwed, the rotary motor causes the workpiece clamping mechanism to rotate 180°. The process involves positioning the workpiece with its lower surface facing upwards. Then, the screw-fastening assembly, following instructions, picks up screws from the screw machine and fastens them onto the lower surface (now the upper surface) of the workpiece. A rotary motor then drives the workpiece clamping mechanism to reset, ensuring the workpiece is horizontally facing upwards. This completes the double-sided screw-fastening operation for one workpiece. The operator or automated part-retrieving device removes the workpiece, and the equipment awaits the next workpiece. The two stations continuously cycle through this automated process, enabling precise and efficient screw fastening of two workpieces on both sides, improving assembly quality and production efficiency while reducing labor costs. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural schematic diagram of the present invention (the workpiece is in a horizontal position); Figure 2 This is a three-dimensional structural schematic diagram of the present invention (the workpiece is in a vertical, lock-on state). Figure 3 for Figure 1 A magnified view of part A; The names corresponding to the serial numbers in the diagram are as follows: Base plate 10, vertical frame 20, X-axis drive module 30, Z-axis drive module 40, screw fastening assembly 50, screw machine 60, Y-axis drive module 70, vertical frame 80, front plate 81, rear plate 82, front convex shaft 83, workpiece clamping mechanism 90, support plate 91, lower convex plate 92, clamping cylinder 93, clamping block 94, contour positioning block 95, rotary motor 96, pressure rod 97, rotary motor 100, mounting bracket 110, workpiece 120. Detailed Implementation

[0008] A mechanism for locking screws on both sides of a workpiece, see... Figures 1-3 It includes a base plate 10, a vertical frame 20, an X-axis drive module 30, a Z-axis drive module 40, a screw fastening assembly 50, a screw fastening machine 60, two Y-axis drive modules 70, two vertical frames 80, two workpiece clamping mechanisms 90, and two rotary motors 100. A vertical frame 20 is provided at the rear of the base plate 10. An X-axis drive module 30 is provided on the vertical frame 20. A Z-axis drive module 40 is provided at the output end of the X-axis drive module 30. A screw-locking assembly 50 is fixedly installed at the output end of the Z-axis drive module 40. A screw-locking machine 60 is arranged on the upper part of the base plate 10 through a mounting bracket 110, and the screw-locking machine 60 is located directly below the screw-locking assembly 40 located at the center of the X-axis. A set of Y-axis drive modules 70 is provided on both sides of the front part of the base plate 10. Each vertical frame 80 is fixedly installed at the output end of the corresponding Y-axis drive module 70. A set of workpiece clamping mechanisms 90 is connected between the front plate 81 and the rear plate 82 of each set of vertical frames 80 through bearings. A rotary motor 100 is fixedly installed on the front plate 81 of each set of vertical frames 80. The rotary motor 100 is connected to the corresponding front convex shaft 83 of the vertical frame 80. The rotary motor 100 drives the workpiece clamping mechanism 90 to rotate.

[0009] In a specific embodiment, the workpiece clamping mechanism 90 includes a support plate 91, two lower convex plates 92, a clamping cylinder 93, and a clamping block 94. A contour positioning block 95 is provided on the support plate 91. The workpiece 120 is placed on the upper surface of the support plate 91 and positioned by the contour positioning block 95. A clamping cylinder 93 is provided on the bottom surface of the support plate 91. The clamping arms at both ends of the clamping cylinder 93 pass through the avoidance guide groove of the support plate 91 and are respectively fixed to the corresponding clamping blocks 94. The clamping blocks 94 clamp the workpiece 120 under the drive of the clamping cylinder 93. The lower convex plates 92 on both sides of the support plate 91 are respectively used to correspond to the front plate 81 or the rear plate 82 of the vertical frame 80 through the bearing. The workpiece clamping mechanism 90 also includes a flipping pressure bar mechanism, which includes a rotary motor 96 and a pressure bar 97. The rotary motor 96 is fixed to one side of the support plate 91, and the output end of the rotary motor 96 is connected to one end of the pressure bar 97. After the workpiece 120 is fixed in position and clamped by the clamping block 94, the rotary motor 96 drives the pressure bar 97 to block the upper surface of the workpiece 120, ensuring that the workpiece 120 is not easily displaced after being flipped into a vertical state. Two sets of Y-axis drive modules 70, together with the workpiece clamping mechanism 90, are arranged symmetrically with respect to the X-axis central plane of the screw machine 60. The screw fastening assembly 50 is a screw fastening machine, and the bottom of the screw fastening machine is a magnetic head, which is used to reliably attract the screw head on the screw fastening machine 60; The output end of the rotary motor 100 is also equipped with a reducer. The rotary motor 100 is connected to the corresponding front convex shaft 83 of the vertical frame 80 through the reducer. The front convex shaft 83 passes through the bearing and is connected to the front lower convex plate of the support plate 81, which ensures that the vertical flipping of the workpiece 120 is stable and reliable.

[0010] Its working principle is as follows: Both the upper and lower surfaces of the workpiece in its vertical position require screws for fastening. The workpiece to be screwed is placed on the workpiece clamping mechanism. The equipment is started, and the workpiece clamping mechanism automatically positions and clamps the workpiece. The screw-locking assembly picks up the screw from the screw machine and moves to the screw-locking position to perform the screw-locking. Then, the corresponding rotary motor drives the workpiece clamping mechanism to rotate 90°. The screw-locking assembly picks up the screw from the screw machine according to the instruction and performs the screw-locking operation on the upper surface of the workpiece. After the upper surface of the workpiece is screwed, the rotary motor causes the workpiece clamping mechanism to rotate 180°. The process involves arranging the workpiece with its lower surface facing upwards. Then, the screw-fastening assembly, following instructions, picks up screws from the screw machine and fastens them onto the lower surface (now the upper surface) of the workpiece. Afterwards, a rotary motor drives the workpiece clamping mechanism to reset, ensuring the workpiece is horizontally facing upwards. This completes the double-sided screw-fastening operation for one workpiece. The operator or automated part-retrieving device removes the workpiece, and the equipment awaits the next workpiece. The two stations continuously cycle through this process. Through automation, this method can accurately and efficiently complete the screw-fastening work on both sides of two workpieces, improving assembly quality and production efficiency while reducing labor costs.

[0011] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0012] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mechanism for locking screws on both sides of a workpiece, characterized in that, It includes: Base plate; Vertical frame; X-axis drive module; Z-axis drive module; Screw fastening assembly; Screw machine; Two sets of Y-axis drive modules; Two sets of vertical frames; Two sets of workpiece clamping mechanisms; And two sets of rotating motors; A vertical frame is provided at the rear of the base plate. An X-axis drive module is provided on the vertical frame. A Z-axis drive module is provided at the output end of the X-axis drive module. The screw-locking assembly is fixedly mounted at the output end of the Z-axis drive module. The screw-locking machine is arranged on the upper part of the base plate through a mounting bracket, and the screw-locking machine is located directly below the screw-locking assembly located at the center of the X-axis. A set of Y-axis drive modules is provided on both sides of the front part of the base plate. Each vertical frame is fixedly mounted on the output end of the corresponding Y-axis drive module. A workpiece clamping mechanism is connected between the front plate and the rear plate of each set of vertical frames through bearings. A rotary motor is fixedly mounted on the front plate of each set of vertical frames. The rotary motor is connected to the corresponding front convex shaft of the vertical frame. The rotary motor drives the workpiece clamping mechanism to rotate.

2. The mechanism for double-sided screw fastening of a workpiece according to claim 1, characterized in that: The workpiece clamping mechanism includes a support plate, two lower convex plates on both sides, a clamping cylinder, and clamping blocks. The support plate is provided with a contour positioning block. The workpiece is placed on the upper surface of the support plate and positioned by the contour positioning block. The bottom surface of the support plate is provided with a clamping cylinder. The clamping arms at both ends of the clamping cylinder pass through the avoidance guide groove of the support plate and are respectively fixed to the corresponding clamping blocks. The clamping blocks clamp the workpiece under the drive of the clamping cylinder. The lower convex plates on both sides of the support plate are respectively used to correspond to the front plate or rear plate of the vertical frame through bearings.

3. The mechanism for double-sided screw fastening of a workpiece according to claim 2, characterized in that: The workpiece clamping mechanism also includes a flipping pressure bar mechanism, which includes a rotating motor and a pressure bar. The rotating motor is fixed to one side of the support plate, and the output end of the rotating motor is connected to one end of the pressure bar. After the workpiece is fixed in position and clamped by the clamping block, the rotating motor drives the pressure bar to block the upper surface of the workpiece.

4. The mechanism for double-sided screw fastening of a workpiece according to claim 1, characterized in that: The two sets of Y-axis drive modules, together with the workpiece clamping mechanism, are arranged symmetrically with respect to the X-axis central plane of the screw machine.

5. The mechanism for double-sided screw fastening of a workpiece according to claim 1, characterized in that: The screw-locking assembly is a screw-tightening machine, and the bottom of the screw-tightening machine is a magnetic head.

6. The mechanism for double-sided screw fastening of a workpiece according to claim 1, characterized in that: The output end of the rotary motor is also equipped with a speed reducer.

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