Rotary table type three-shaft screw locking machine

Abstract

The utility model discloses a rotary table type three-shaft screw locking machine which comprises an operation table frame, a table plate is fixed on the operation table frame, a rotary table motor is fixedly installed at the lower end of the table plate, an output shaft of the rotary table motor penetrates through the table plate and is fixedly provided with a rotary table, and the lower surface of the rotary table is attached to the table plate in a sliding mode. A plurality of die holders are arranged on the rotary table and are arranged in a radial mode, quick-change seats are installed at the lower ends of the die holders, and an adjusting structure used for driving the quick-change seats to achieve synchronous position adjustment is installed on the rotary table. A three-axis moving structure is installed on the platen and used for driving an electric screwdriver base to move, an electric screwdriver is installed on the electric screwdriver base, a screwdriver head is arranged at the output end of the electric screwdriver, a suction nozzle support is fixedly installed on the electric screwdriver base downwards, a suction nozzle is fixedly installed on the suction nozzle support, and the screwdriver head can stretch out of the suction nozzle. The rotary table type three-shaft screw locking machine has the advantages of being capable of adjusting the distance between the die holders, widening the application range and being convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of screw fastening machine technology, and in particular to a rotary table type three-axis screw fastening machine. Background Technology

[0002] A screw fastening machine is a small, automated machine for fastening screws. Its operating structure can generally be divided into two parts: a feeding section and an electric screwdriver section. The feeding section is responsible for screening and providing screws, while the electric screwdriver section is responsible for picking up and fastening the screws. The emergence of screw fastening machines has both improved work efficiency and reduced the intensity of manual labor.

[0003] The currently used three-axis screw fastening machine provides multiple workstations through a turntable. Each workstation is equipped with a mold base for placing the workpiece. The workpiece to be screwed is placed on the mold base, and the turntable moves it to the screw fastening station for screw fastening. Since the turntable size is fixed, the mold base will interfere with the installation of larger workpieces, so the number of mold bases needs to be reduced, which affects the screw fastening efficiency. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a rotary table type three-axis screw fastening machine that can adjust the spacing between mold bases, improve the applicability, and is easy to use.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A rotary table type three-axis screw fastening machine includes an operating table frame, a table plate fixed on the operating table frame, a rotary table motor fixedly installed at the lower end of the table plate, the output shaft of the rotary table motor passing through the table plate and fixedly installed on the rotary table, and the lower surface of the rotary table slidingly fitting with the table plate.

[0007] The turntable is provided with a plurality of mold bases arranged radially, and quick-change bases are installed at the lower ends of the mold bases. The turntable is provided with an adjustment structure for driving the quick-change bases to achieve synchronous position adjustment.

[0008] The platform is equipped with a three-axis moving structure, which is used to drive the electric screwdriver holder to move. The electric screwdriver holder is equipped with an electric screwdriver, and the output end of the electric screwdriver is a screwdriver bit. The electric screwdriver holder is fixedly mounted with a suction nozzle bracket, and a suction nozzle is fixedly mounted on the suction nozzle bracket. The screwdriver bit can extend out of the suction nozzle.

[0009] In this way, when tightening screws on a workpiece, the corresponding die holder is changed on the quick-change stand. The die holder is equipped with a clamp for fixing the workpiece. After the workpiece is fixed on the die holder, the turntable motor drives the turntable to rotate, moving the workpiece to the screw-tightening position. The three-axis moving structure drives the electric screwdriver to move, and the screw enters the suction nozzle through the air tube. After the screwdriver bit extends into the suction nozzle, it tightens the screw in the suction nozzle onto the workpiece. The corresponding die holder is changed according to different workpieces via the quick-change stand. When the die holders interfere with each other, the distance between the die holders is adjusted by adjusting the structure. The position of the die holders can be adjusted without disassembling the turntable, which can improve applicability.

[0010] The quick-change seat includes a slide plate that slides and fits against the turntable. A frame is fixed on the slide plate. An insert block is fixedly installed at the lower end of the mold base. The insert block is inserted into the frame. A through hole is provided between the insert block and the frame. A connecting bolt passes through the through hole and is connected to a nut.

[0011] The adjustment structure includes screws of the same number as the mold bases. The turntable has radially arranged mounting slots of the same number as the mold bases. A central slot is also provided on the turntable. A wheel axle is rotatably mounted in the central slot, and a central bevel gear is fixedly mounted on the wheel axle. The screws are located in the mounting slots, with their inner ends passing through the turntable and extending into the central slot. An end bevel gear that meshes with the central bevel gear is fixedly mounted on the end of the screw located in the central slot. The outer end of one screw passes through the turntable and extends to the outside of the turntable. The screws are connected to the turntable via bearings. A nut block is threaded onto the screw, and the upper end of the nut block is fixedly connected to the sliding plate.

[0012] A handwheel is fixed to the end of the screw located on the outside of the turntable.

[0013] The three-axis moving structure includes a transverse support fixedly mounted on a platform. A transverse lead screw is rotatably mounted on the transverse support via bearings. One end of the lead screw passes through the transverse support and is fixedly connected to the output shaft of a transverse servo motor. The transverse servo motor is fixedly mounted on the transverse support. A transverse nut block is threaded onto the transverse lead screw, and a transverse connecting block is fixedly mounted on the transverse nut block, slidingly engaging with the transverse support. A column is fixedly mounted on the transverse support, and a longitudinal support is fixedly mounted on the upper end of the column. A longitudinal lead screw is rotatably mounted on the longitudinal support via bearings, and one end of the longitudinal lead screw passes through the longitudinal support and is fixedly connected to the output shaft of a longitudinal servo motor. The system is as follows: a longitudinal servo motor is fixedly mounted on a longitudinal support; a longitudinal nut block is threaded onto the longitudinal lead screw; a longitudinal connecting block is fixedly mounted on the longitudinal nut block; the longitudinal connecting block slides against the longitudinal support; a mounting plate is fixedly mounted on the longitudinal support; a vertical support is fixedly mounted on the mounting plate; a vertical lead screw is rotatably mounted on the vertical support via a bearing; one end of the vertical lead screw passes through the vertical support and is fixedly connected to the output shaft of the vertical servo motor; the vertical servo motor is fixedly mounted on the vertical support; a vertical nut block is threaded onto the vertical lead screw; a vertical connecting block is fixedly mounted on the vertical nut block; and the vertical connecting block is fixedly connected to an electric screwdriver holder.

[0014] The column is fixedly equipped with diagonal bracing, which is fixedly connected to the longitudinal support via vertical bracing.

[0015] In summary, this rotary table three-axis screw fastening machine has the advantages of adjustable mold base spacing, increased applicability, and ease of use. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a rotary table type three-axis screw fastening machine according to the present invention.

[0017] Figure 2 for Figure 1 A diagram showing another location.

[0018] Figure 3 This is a schematic diagram of a three-axis moving structure.

[0019] Figure 4 This is a schematic diagram of the turntable.

[0020] Figure 5 This is a schematic diagram of the mold base and quick-change base.

[0021] Figure 6 This is a schematic diagram of the mold base.

[0022] Figure 7 This is a diagram illustrating the quick seat change process. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] like Figure 1-7 As shown, a rotary table type three-axis screw fastening machine includes an operating table 1, a table plate 2 fixed on the operating table, a rotary table motor 3 fixedly installed at the lower end of the table plate, the output shaft of the rotary table motor passing through the table plate and fixedly installed on a rotary table 4, and the lower surface of the rotary table slidingly fitting with the table plate.

[0025] The turntable is provided with a plurality of mold bases 5, which are arranged radially. A quick-change seat is installed at the lower end of each mold base. An adjustment structure for driving the quick-change seat to achieve synchronous position adjustment is installed on the turntable.

[0026] A three-axis moving structure 6 is installed on the platform. The three-axis moving structure is used to drive the electric screwdriver holder to move. An electric screwdriver 8 is installed on the electric screwdriver holder. The output end of the electric screwdriver is a screwdriver bit. A suction nozzle bracket is fixedly installed downward on the electric screwdriver holder. A suction nozzle is fixedly installed on the suction nozzle bracket. The screwdriver bit can extend out of the suction nozzle.

[0027] In this way, when tightening screws on a workpiece, the corresponding die holder is changed on the quick-change stand. The die holder is equipped with a clamp for fixing the workpiece. After the workpiece is fixed on the die holder, the turntable motor drives the turntable to rotate, moving the workpiece to the screw-tightening position. The three-axis moving structure drives the electric screwdriver to move, and the screw enters the suction nozzle through an air tube. After the screwdriver bit extends into the suction nozzle, it tightens the screw inside the nozzle onto the workpiece. The corresponding die holder is changed according to different workpieces via the quick-change stand. When the die holders interfere with each other, the distance between the die holders is adjusted by adjusting the structure. The position of the die holders can be adjusted without disassembling the turntable, which improves applicability. The screwdriver bit and suction nozzle are existing structures, and the specific principle will not be elaborated further.

[0028] In implementation, the quick-change base includes a slide plate 9, which slides and fits against the turntable. A frame 10 is fixed on the slide plate, and an insert block 11 is fixedly installed at the lower end of the mold base. The insert block and the frame are interlocked, and a through hole 12 is provided between the insert block and the frame. A connecting bolt 13 passes through the through hole and is connected to a nut 14. When changing the mold base, it is only necessary to remove the nut, remove the connecting bolt, remove the mold base section, insert the corresponding mold base insert block into the frame, and then the connecting bolt passes through the through hole and is connected to the nut to complete the mold base replacement.

[0029] In implementation, the adjustment structure includes screws 15 in number equal to the number of mold bases. The turntable has radially arranged mounting slots in the same number as the number of mold bases. A central slot is also provided on the turntable. An axle is rotatably mounted in the central slot, and a central bevel gear 16 is fixedly mounted on the axle. The screws are located in the mounting slots, with their inner ends passing through the turntable and extending into the central slot. An end bevel gear 17, meshing with the central bevel gear, is fixedly mounted on the end of the screw located in the central slot. The outer end of one screw passes through the turntable and extends to the outside of the turntable. The screws are connected to the turntable via bearings. A nut block is threaded onto the screw, and the upper end of the nut block is fixedly connected to a sliding plate. Rotating the outer end of the screw, through the meshing of the central bevel gear and the end bevel gear, drives all the screws to rotate synchronously. This, in turn, drives all the sliding plates to move synchronously through all the nut blocks, thus adjusting the position of the mold bases.

[0030] During implementation, a handwheel 18 is fixed to the end of the screw located on the outside of the turntable to facilitate the rotation of the screw.

[0031] In implementation, the three-axis moving structure includes a transverse support 19 fixedly mounted on a platform. A transverse lead screw 20 is rotatably mounted on the transverse support via bearings. One end of the lead screw passes through the transverse support and is fixedly connected to the output shaft of a transverse servo motor 21. The transverse servo motor is fixedly mounted on the transverse support. A transverse nut block is threaded onto the transverse lead screw, and a transverse connecting block 22 is fixedly mounted on the transverse nut block, slidingly engaging with the transverse support. A column 23 is fixedly mounted on the transverse support. A longitudinal support 24 is fixedly mounted on the upper end of the column. A longitudinal lead screw 25 is rotatably mounted on the longitudinal support via bearings. One end of the longitudinal lead screw passes through the longitudinal support and is connected to the output shaft of a longitudinal servo motor 26. The output shaft is fixedly connected. The longitudinal servo motor is fixedly mounted on the longitudinal support. A longitudinal nut block is threaded onto the longitudinal lead screw. A longitudinal connecting block 27 is fixedly mounted on the longitudinal nut block. The longitudinal connecting block slides and fits against the longitudinal support. An mounting plate 28 is fixedly mounted on the longitudinal support. A vertical support 29 is fixedly mounted on the mounting plate. A vertical lead screw 30 is rotatably mounted on the vertical support via a bearing. One end of the vertical lead screw passes through the vertical support and is fixedly connected to the output shaft of the vertical servo motor 31. The vertical servo motor is fixedly mounted on the vertical support. A vertical nut block is threaded onto the vertical lead screw. A vertical connecting block is fixedly mounted on the vertical nut block. The vertical connecting block is fixedly connected to the electric screwdriver holder.

[0032] In this way, the coordinated operation of the horizontal, vertical, and latitudinal servo motors achieves the position adjustment of the screwdriver bit in three directions, enabling the screwdriver bit to perform the screw-tightening operation. The servo motors drive the lead screw, which is the existing structure. The servo motors are connected to a motor controller, and a control cabinet is mounted on the workbench. The control cabinet contains a PLC controller, which is connected to the motor controller to control the operation of the three servo motors. This is the existing structure.

[0033] In practice, the column is fixedly equipped with diagonal braces 32, which are fixedly connected to the longitudinal support via vertical braces 33. This improves the overall strength and stability.

[0034] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A turret three-axis screw locking machine characterized by, Including operation rack (1), the operation rack is fixed with table board (2), the lower end of table board is fixedly installed with rotary table motor (3), the output shaft of rotary table motor passes through table board and is fixedly installed with rotary table (4), the lower surface of rotary table is in sliding fit with table board; The rotary table is provided with a plurality of mold bases (5), the mold bases are arranged radially, the lower end of the mold base is installed with a quick-change seat, the rotary table is installed with an adjusting structure for driving the quick-change seat to realize synchronous position adjustment; The table board is installed with a three-axis moving structure (6), the three-axis moving structure is used for driving the electric drill seat (7) to move, the electric drill seat is installed with an electric drill (8), the output end of the electric drill is a drill bit, the electric drill seat is fixedly installed with a suction nozzle support downward, the suction nozzle support is fixedly installed with a suction nozzle, the drill bit can extend out of the suction nozzle.

2. The turntable type three-axis screw locking machine according to claim 1, wherein The quick-change seat includes a sliding plate (9), the sliding plate is in sliding fit with the rotary table, the sliding plate is fixedly provided with a frame (10), the lower end of the mold base is fixedly installed with an insertion block (11), the insertion block is inserted and matched with the frame, the insertion block and the frame are provided with through holes (12) opposite to each other, the connecting bolts (13) pass through the through holes and are connected with nuts (14).

3. The turntable type three-axis screw locking machine according to claim 2, wherein The adjusting structure includes a plurality of screw rods (15) which are the same as the number of mold bases, the rotary table is radially provided with a plurality of installation grooves which are the same as the number of mold bases, the rotary table is also provided with a center groove, a wheel shaft is rotatably installed in the center groove, the wheel shaft is fixedly installed with a center bevel gear (16), the screw rods are located in the installation grooves and the inner ends of the screw rods pass through the rotary table and extend into the center groove, the end portions of the screw rods in the center groove are fixedly installed with end bevel gears (17) which are meshed with the center bevel gear, the outer ends of one of the screw rods pass through the rotary table and extend to the outside of the rotary table, the screw rod and the rotary table are connected through a bearing, the screw rod is threadedly connected with a nut block, the upper end of the nut block is fixedly connected with the sliding plate.

4. The turntable type three-axis screw locking machine according to claim 3, wherein The end of the screw rod outside the rotary table is fixedly provided with a hand wheel (18).

5. The turntable three-axis screw locking machine according to claim 4, characterized in that, The three-axis moving structure comprises a transverse support (19) fixedly installed on a table plate, the transverse support is rotatably installed with a transverse lead screw (20) through a bearing, one end of the transverse lead screw passes through the transverse support and is fixedly connected with an output shaft of a transverse servo motor (21), the transverse servo motor is fixedly installed on the transverse support, a transverse nut block is threadedly connected on the transverse lead screw, the transverse nut block is fixedly installed with a transverse connecting block (22), and the transverse connecting block is in sliding fit with the transverse support; the transverse support is fixedly installed with a vertical column (23), the vertical column is fixedly installed with a longitudinal support (24) at the upper end, the longitudinal support is rotatably installed with a longitudinal lead screw (25) through a bearing, one end of the longitudinal lead screw passes through the longitudinal support and is fixedly connected with an output shaft of a longitudinal servo motor (26), the longitudinal servo motor is fixedly installed on the longitudinal support, a longitudinal nut block is threadedly connected on the longitudinal lead screw, the longitudinal nut block is fixedly installed with a longitudinal connecting block (27), and the longitudinal connecting block is in sliding fit with the longitudinal support; the longitudinal support is fixedly installed with a mounting plate (28), the mounting plate is fixedly installed with a vertical support (29), the vertical support is rotatably installed with a vertical lead screw (30) through a bearing, one end of the vertical lead screw passes through the vertical support and is fixedly connected with an output shaft of a vertical servo motor (31), the vertical servo motor is fixedly installed on the vertical support, a vertical nut block is threadedly connected on the vertical lead screw, the vertical nut block is fixedly installed with a vertical connecting block, and the vertical connecting block is fixedly connected with the electric bit support.

6. A turntable three-axis screw locking machine according to claim 5, characterized in that, The vertical column is fixedly installed with an inclined support (32), and the inclined support is fixedly connected with the longitudinal support through a vertical support (33).

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