Double-station automatic screw locking machine

Abstract

The utility model discloses a double-station automatic screw locking machine which comprises a working table, a base is arranged on the working table, the base is fixedly connected with the working table through a connecting block, an opposite moving structure is installed on the base, and the opposite moving structure is used for driving two mold frames to synchronously and reversely move. The mold frame is provided with a mold base through a rotating shaft, and the mold frame is further provided with a mold base overturning structure used for driving the mold base to overturn; a three-axis moving structure is installed on the workbench, the three-axis moving structure is used for driving electric screwdriver seats to move, electric screwdrivers are installed on the electric screwdriver seats, screwdriver heads are arranged at the output ends of the electric screwdrivers, suction nozzle supports are fixedly installed on the electric screwdriver seats downwards, suction nozzles are fixedly installed on the suction nozzle supports, and the screwdriver heads can stretch out of the suction nozzles. The double-station automatic screw locking machine has the advantages of being capable of improving production efficiency, convenient to use and high in automation degree.

Description

Technical Field

[0001] The utility model relates to the technical field of screw machines, in particular to a double-station automatic screw locking machine. Background Art

[0002] Screw tightening is a common process in the production of products in industries such as electronics assembly, hardware accessories, and automobiles. Traditional methods, where workers manually tighten screws with screwdrivers or electric screwdrivers, have largely been eliminated due to their high labor intensity and low efficiency. Existing screw tightening machines offer reliable structures, ease of use, and suitability for a variety of batch operations. However, existing automatic screw tightening machines generally utilize a single station for tightening, which is inefficient at meeting the increasing production volume. This has led to the emergence of dual-station automatic screw tightening machines.

[0003] The double-station automatic screw locking machine currently in use includes two horizontally parallel stations, which takes up a large space, and the horizontal movement stroke of the electric screwdriver is long, which is time-consuming and also affects the improvement of production efficiency. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this patent application is how to provide a double-station automatic screw locking machine that can improve production efficiency, is easy to use, and has a high degree of automation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A double-station automatic screw locking machine includes a workbench, a base is provided on the workbench, the base is fixedly connected to the workbench via a connecting block, a counter-moving structure is installed on the base, the counter-moving structure is used to drive two mold frames to move synchronously in opposite directions, the mold frames are equipped with a mold base via a rotating shaft, and the mold base is also equipped with a mold base flipping structure for driving the mold base to flip;

[0007] A three-axis moving structure is installed on the workbench, and the three-axis moving structure is used to drive the electric screwdriver holder to move. The electric screwdriver holder is installed with an electric screwdriver, and the output end of the electric screwdriver is a screwdriver bit. The electric screwdriver holder is fixedly installed with a suction nozzle bracket downward, and the suction nozzle is fixedly installed on the suction nozzle bracket, and the screwdriver bit can extend the suction nozzle.

[0008] Among them, four guide rails are fixedly installed on the base, and two guide rails are provided corresponding to each mold frame. The lower end of the mold frame is provided with two guide grooves that cooperate with the guide rails.

[0009] Among them, the counter-moving structure includes a reduction motor fixedly installed at the lower end of the base, the output shaft of the reduction motor passes through the base and is fixedly connected to the driving pulley, a driven pulley is installed on the base through a wheel axle, the driving pulley and the driven pulley are connected by a belt, and the opposite sides of the belt are respectively fixedly connected to the mold frame through fixed blocks.

[0010] Wherein, the mold base flipping structure includes two flipping cylinders, the cylinder bodies of the flipping cylinders are hinged to the mold frame, and the cylinder rod ends of the flipping cylinders are hinged to the mold base.

[0011] Wherein, the three-axis moving structure includes a horizontal moving structure, a vertical moving structure and a longitudinal moving structure;

[0012] The lateral movement structure includes two lateral screws, which are symmetrically arranged on both sides of the base. The two ends of the lateral screws are connected to the ear seats through bearings. The ear seats are fixedly mounted on the workbench. A lateral servo motor is fixedly mounted on one of the ear seats. The output shaft of the lateral servo motor is fixedly connected to one end of the lateral screw.

[0013] The vertical movable structure includes two vertically arranged columns, the lower ends of the columns are provided with threaded holes, the columns are connected to the screws through threads, and the lower ends of the columns are slidably fitted with the workbench;

[0014] The vertical movement structure includes a mounting groove provided on the column, a vertical screw is rotatably mounted in the mounting groove, a vertical servo motor is fixedly mounted on the upper end of the column, an output shaft of the vertical servo motor passes through the column and is fixedly connected to the upper end of the vertical screw, and a lifting block is threadedly connected to the vertical screw;

[0015] The longitudinal moving structure includes a mounting plate, which is fixedly connected to the lifting block, and mounting seats are fixed at both ends of the mounting plate. A longitudinal screw is installed between the two mounting seats through a bearing, and a longitudinal servo motor is fixedly installed on one of the mounting plates. One end of the longitudinal screw is fixedly connected to the output shaft of the longitudinal servo motor, and a nut block is threadedly connected to the longitudinal screw. A guide rod is fixed between the two mounting seats, and a guide hole is provided through the nut block to slide with the guide rod, and the electric screw seat is fixedly mounted on the nut block.

[0016] One end of the base extends to the outside of the workbench, and a reinforcement frame is fixed between the end of the base extending to the outside of the workbench and the workbench, and the reinforcement frame is L-shaped.

[0017] In summary, this dual-station automatic screw locking machine has the advantages of improving production efficiency, being easy to use, and having a high degree of automation. During use, the jig is fixedly mounted on the die base, and the opposing moving structure drives the two die frames to move in opposite directions, enabling synchronous reverse movement. During the movement, the die base flipping structure drives the die base to flip to an inclined state, reducing the occupied space and avoiding collisions between the two die bases during movement. After moving into position, the die base flipping structure drives the die base to flip to a horizontal state. The workpiece on the jig on one die base undergoes the screw locking process, while the workpiece on the jig on the other die base undergoes the replacement operation, greatly improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a double-station automatic screw locking machine.

[0019] Figure 2 for Figure 1 Schematic diagram of the screw-locking state.

[0020] Figure 3 for Figure 1 Partial schematic diagram.

[0021] Figure 4 for Figure 2 Partial schematic diagram. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional terms such as "upper, lower" and "top, bottom" are generally based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. Unless otherwise indicated, these directional terms do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention; the directional terms "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0023] like Figure 1-4 As shown, a double-station automatic screw locking machine includes a workbench 1, a base 2 is provided on the workbench, the base and the workbench are fixedly connected by a connecting block, a counter-moving structure is installed on the base, and the counter-moving structure is used to drive two mold frames 3 to move synchronously in opposite directions. The mold frames are equipped with mold bases 4 via rotating shafts, and the mold frames are also equipped with a mold base flipping structure for driving the mold base to flip;

[0024] A three-axis moving structure is installed on the workbench, and the three-axis moving structure is used to drive the electric screwdriver seat 5 to move. The electric screwdriver seat is equipped with an electric screwdriver 6. The output end of the electric screwdriver is a screwdriver head. The electric screwdriver seat is fixedly equipped with a suction nozzle bracket downward, and a suction nozzle is fixedly installed on the suction nozzle bracket, and the screwdriver head can extend the suction nozzle.

[0025] In this way, the mold base is used to install the fixing fixture 7, and the mold base is equipped with a fixture clamping structure, etc., which belongs to the existing structure. This application solves the problem that the current double-station automatic screw locking machine occupies a large horizontal space, so the mold base can be directly used with the existing fixture, and the fixture fixes the workpiece.

[0026] When in use, the jig is fixedly installed on the die base, and the opposing moving structure drives the two die frames to move in opposite directions, and can move in opposite directions synchronously. During the movement, the die base flipping structure drives the die base to flip to an inclined state, reducing the occupied space and avoiding collision between the two die bases during movement. After moving into place, the die base flipping structure drives the die base to flip to a horizontal state, and the workpiece on the jig on one die base is screwed, and the workpiece on the jig on the other die base is replaced, which greatly improves efficiency.

[0027] The three-axis motion mechanism drives the electric screwdriver to move along three axes, enabling screw tightening operations on workpieces mounted on fixtures. During screw tightening, the screw enters the mouthpiece through the air tube. The three-axis motion mechanism moves the electric screwdriver into position, locking the screw onto the workpiece. The electric screwdriver is pre-installed and ready for immediate assembly.

[0028] During implementation, four guide rails 8 are fixedly mounted on the base, two of which are provided for each mold frame, and two guide grooves are provided at the lower end of each mold frame to cooperate with the guide rails, so as to guide the movement of the mold frame.

[0029] During implementation, the counter-movement structure includes a reduction motor fixedly mounted at the lower end of the base. The output shaft of the reduction motor passes through the base and is fixedly connected to the driving pulley 9. A driven pulley is mounted on the base via a wheel shaft. The driving and driven pulleys are connected by a belt 10. The opposite sides of the belt are fixedly connected to the mold frame via fixed blocks. The reduction motor drives the driving pulley to rotate. Under the action of the driving pulley, driven pulley, and belt, the mold frames on both sides of the belt achieve synchronous opposite movement, achieving a single power input and facilitating improved efficiency.

[0030] During implementation, the mold base flipping structure includes two flipping cylinders 11, the cylinder bodies of the flipping cylinders are hinged to the mold frame, and the ends of the cylinder rods of the flipping cylinders are hinged to the mold base. The extension or contraction of the cylinder rods of the flipping cylinders drives the mold base to flip.

[0031] During implementation, the three-axis moving structure includes a horizontal moving structure, a vertical moving structure and a longitudinal moving structure;

[0032] The lateral movement structure includes two lateral screws 12, which are symmetrically arranged on both sides of the base. The two ends of the lateral screws are connected to the ear seats through bearings. The ear seats are fixedly mounted on the workbench. A lateral servo motor 13 is fixedly mounted on one of the ear seats. The output shaft of the lateral servo motor is fixedly connected to one end of the lateral screw.

[0033] The vertical movable structure includes two vertically arranged columns 14, the lower ends of the columns are provided with threaded holes, the columns are connected to the screws through threads, and the lower ends of the columns are slidably fitted with the workbench;

[0034] The vertical movement structure includes a mounting slot provided on the column, in which a vertical screw 15 is rotatably mounted, and a vertical servo motor 16 is fixedly mounted on the upper end of the column. The output shaft of the vertical servo motor passes through the column and is fixedly connected to the upper end of the vertical screw, and a lifting block is threadedly connected to the vertical screw.

[0035] The longitudinal moving structure includes a mounting plate 17, which is fixedly connected to the lifting block. Mounting seats are fixed at both ends of the mounting plate. A longitudinal screw 18 is installed between the two mounting seats through a bearing. A longitudinal servo motor 19 is fixedly installed on one of the mounting plates. One end of the longitudinal screw is fixedly connected to the output shaft of the longitudinal servo motor. A nut block is threadedly connected to the longitudinal screw. A guide rod 20 is fixed between the two mounting seats. The nut block is penetrated by a guide hole that slides with the guide rod, and the electric screw seat is fixedly mounted on the nut block.

[0036] In this way, the three-axis moving structure realizes movement in three directions, which is an existing moving structure. The forward rotation or flipping of the horizontal servo motor, the longitudinal servo motor and the vertical servo motor are all controlled by the motor controller respectively, which belongs to the existing structure.

[0037] During implementation, one end of the base extends to the outside of the workbench, and a reinforcement frame 21 is fixed between the end of the base extending to the outside of the workbench and the workbench. The reinforcement frame is L-shaped, thereby improving the support effect of the base.

[0038] Specifically, it also includes a PLC controller for controlling the actions of the electrical components therein.

[0039] Finally, it should be noted that those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A double-station automatic screw locking machine, including a workbench, characterized in that: The workbench is provided with a base, the base and the workbench are fixedly connected by a connecting block, the base is equipped with a counter-moving structure, the counter-moving structure is used to drive the two mold frames to move synchronously in opposite directions, the mold frame is equipped with a mold base via a rotating shaft, and the mold base is also equipped with a mold base flipping structure for driving the mold base to flip; A three-axis moving structure is installed on the workbench, and the three-axis moving structure is used to drive the electric screwdriver holder to move. The electric screwdriver holder is installed with an electric screwdriver, and the output end of the electric screwdriver is a screwdriver bit. The electric screwdriver holder is fixedly installed with a suction nozzle bracket downward, and the suction nozzle is fixedly installed on the suction nozzle bracket, and the screwdriver bit can extend the suction nozzle.

2. A double-station automatic screw locking machine according to claim 1, characterized in that: Four guide rails are fixedly mounted on the base, two of the guide rails are provided corresponding to each mold frame, and two guide grooves cooperating with the guide rails are provided at the lower end of the mold frame.

3. A double-station automatic screw locking machine according to claim 2, characterized in that: The counter-moving structure includes a reduction motor fixedly mounted on the lower end of the base, the output shaft of the reduction motor passes through the base and is fixedly connected to the driving pulley, a driven pulley is mounted on the base via an axle, the driving pulley and the driven pulley are connected via a belt, and opposite sides of the belt are respectively fixedly connected to the mold frame via fixed blocks.

4. A double-station automatic screw locking machine according to claim 1, characterized in that: The mold base turning structure includes two turning cylinders, the cylinder bodies of the turning cylinders are hinged to the mold frame, and the cylinder rod ends of the turning cylinders are hinged to the mold base.

5. The double-station automatic screw locking machine according to claim 1, characterized in that: The three-axis moving structure includes a horizontal moving structure, a vertical moving structure and a longitudinal moving structure; The lateral movement structure includes two lateral screws, which are symmetrically arranged on both sides of the base. The two ends of the lateral screws are connected to the ear seats through bearings. The ear seats are fixedly mounted on the workbench. A lateral servo motor is fixedly mounted on one of the ear seats. The output shaft of the lateral servo motor is fixedly connected to one end of the lateral screw. The vertical movable structure includes two vertically arranged columns, the lower ends of the columns are provided with threaded holes, the columns are connected to the screws through threads, and the lower ends of the columns are slidably fitted with the workbench; The vertical movement structure includes a mounting groove provided on the column, a vertical screw is rotatably mounted in the mounting groove, a vertical servo motor is fixedly mounted on the upper end of the column, an output shaft of the vertical servo motor passes through the column and is fixedly connected to the upper end of the vertical screw, and a lifting block is threadedly connected to the vertical screw; The longitudinal moving structure includes a mounting plate, which is fixedly connected to the lifting block, and mounting seats are fixed at both ends of the mounting plate. A longitudinal screw is installed between the two mounting seats through a bearing, and a longitudinal servo motor is fixedly installed on one of the mounting plates. One end of the longitudinal screw is fixedly connected to the output shaft of the longitudinal servo motor, and a nut block is threadedly connected to the longitudinal screw. A guide rod is fixed between the two mounting seats, and a guide hole is provided through the nut block to slide with the guide rod, and the electric screw seat is fixedly mounted on the nut block.

6. A double-station automatic screw locking machine according to claim 1, characterized in that: One end of the base extends to the outside of the workbench, and a reinforcement frame is fixed between the end of the base extending to the outside of the workbench and the workbench, and the reinforcement frame is L-shaped.

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