Positioning device of pneumatic tapping machine

Abstract

The utility model relates to the field of pneumatic tapping machines, and discloses a pneumatic tapping machine positioning device which comprises pneumatic tapping equipment, a movable support is arranged on the edge of the top end of the pneumatic tapping equipment, a screw tap is installed on the edge of one end of the movable support, a containing table is fixedly installed on the upper surface of the pneumatic tapping equipment, and a limiting support is arranged in the middle of the top end of the containing table. A fixed inner cavity is formed in the limiting support, a servo motor is installed in the fixed inner cavity, the output end of the upper surface of the servo motor extends to the inner top of the limiting support to be provided with a driving gear, and a plurality of driven half gears are rotationally installed at the inner top of the limiting support and close to the outer surface of the driving gear. According to the pneumatic tapping equipment, the clamping piece is adjusted to be limited on the outer surface of the workpiece, so that the effect of conveniently limiting and fixing the workpiece in an irregular shape is achieved, the stability of the workpiece during tapping is improved, the problem that the precision is affected due to unstable placement during machining of the workpiece is solved, and the overall use efficiency of the pneumatic tapping equipment is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of pneumatic tapping machines, in particular to a positioning device of a pneumatic tapping machine. BACKGROUND

[0002] The pneumatic tapping machine is a device for tapping workpieces by using compressed air as a power source. It mainly comprises a pneumatic motor, a speed reduction mechanism, a tapping chuck and a support, etc., and can efficiently and accurately tap internal threads on metal or part of non-metal materials. Compressed air enters the pneumatic motor through the air pipe to drive the blades or the piston of the motor to rotate. The rotary motion of the pneumatic motor is decelerated and the torque is increased through the speed reduction mechanism, and then is transmitted to the tapping chuck. The tapping chuck clamps the tap, drives the tap to rotate and axially feeds, so that the tap cuts into the workpiece to tap the internal thread.

[0003] When the pneumatic tapping machine taps the workpiece, due to the complex and irregular shape of the workpiece, such as the curved surface, thin-walled structure or cantilever part, it is difficult to effectively fix these special-shaped parts during tapping. When the tap exerts a cutting force on the workpiece, the workpiece may shake and cause a certain positional deviation, thereby affecting the overall accuracy of the workpiece tapping and the stability of the workpiece tapping.

[0004] For the above-mentioned related technology, the inventor believes that some workpieces have the defect of complex structure and inconvenient fixation during tapping. Therefore, a positioning device of a pneumatic tapping machine is proposed to solve the above problems. CONTENT OF THE INVENTION

[0005] In order to solve the problem that some workpieces have complex structure and are inconvenient to fix during tapping, the application provides a positioning device of a pneumatic tapping machine.

[0006] The positioning device of the pneumatic tapping machine provided by the application adopts the following technical scheme:

[0007] A positioning device of a pneumatic tapping machine, comprising a pneumatic tapping device, wherein the top edge of the pneumatic tapping device is provided with a movable support, one end of the movable support is provided with a tap, the upper surface of the pneumatic tapping device is fixedly provided with a placing table, the top center of the placing table is provided with a limiting support, the limiting support is internally provided with a fixed inner cavity, a servo motor is installed in the fixed inner cavity, the upper surface output end of the servo motor extends to the inner top of the limiting support and is installed with a driving gear, a plurality of driven half gears are rotatably installed on the outer surface of the inner top of the limiting support close to the driving gear, a connecting plate is welded on one side of the outer surface of the driven half gear, and a limiting mechanism is further arranged in the connecting plate for limiting and fixing the workpiece.

[0008] Preferably, the limiting mechanism comprises a guide groove, the guide groove is provided on the upper surface of the connecting plate, the guide groove is movably installed with a movable piece, the top end of the movable piece is fixedly installed with a clamping piece, and the bottom end of the movable piece is threadedly connected with a limiting bolt.

[0009] Preferably, the number of driven half gears is three, the outer surface of the driven half gears is movably close to the outer surface of the driving gear, and the driving gear and the driven half gears are meshed with each other.

[0010] Preferably, the outer diameter of the movable piece is smaller than the distance between the front and rear ends of the inner wall of the guide groove, and the guide groove and the movable piece are mutually embedded.

[0011] Preferably, the outer surface of the limiting bolt is provided with a connecting baffle on one side, and the connecting baffle is abutted on the lower bottom surface of the connecting plate.

[0012] In summary, the present application has the following beneficial technical effects:

[0013] By placing the workpiece on the upper surface of the limiting support, pulling the movable piece along the connecting plate to adjust the placement position, rotating the limiting bolt to fix the movable piece in the guide groove, rotating the driving gear to drive the plurality of driven half gears to rotate, and the connecting plate drives the clamping piece to be movably clamped on the outer surface of the workpiece; compared with the prior art, the present application has the effect of conveniently limiting and fixing the workpiece of irregular shape, improves the stability of the workpiece tapping, solves the problem of affecting the accuracy of the workpiece during machining due to unstable placement, and improves the overall use efficiency of the pneumatic tapping equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a schematic diagram of the overall structure of the application embodiment;

[0015] Fig. 2 is a schematic diagram of the internal structure of the limiting support in the application embodiment;

[0016] Fig. 3 is a schematic diagram of the structure of the driven half gear in the application embodiment;

[0017] BRIEF DESCRIPTION OF DRAWINGS: 1, pneumatic tapping equipment; 2, movable support; 3, tap; 4, placement table; 5, limiting support; 6, fixed inner cavity; 7, servo motor; 8, driving gear; 9, driven half gear; 10, connecting plate; 11, guide groove; 12, movable piece; 13, clamping piece; 14, limiting bolt; 15, connecting baffle. DETAILED DESCRIPTION

[0018] The following will be described in detail in combination with the drawings Figs. 1-3 The application will be further described in detail.

[0019] The embodiment of the application discloses a positioning device of a pneumatic tapping machine. Figs. 1-3 The positioning device of the pneumatic tapping machine comprises a pneumatic tapping device 1, a movable support 2 arranged at the top end of the pneumatic tapping device 1, a tap 3 mounted at one end of the movable support 2, a placing table 4 fixedly mounted on the upper surface of the pneumatic tapping device 1, a limiting support 5 arranged at the top end of the placing table 4, a fixed inner cavity 6 formed in the limiting support 5, a servo motor 7 mounted in the fixed inner cavity 6, a driving gear 8 extending to the inner top of the limiting support 5 and mounted on the upper surface of the servo motor 7, a plurality of driven half gears 9 rotatably mounted on the inner top of the limiting support 5 and close to the outer surface of the driving gear 8, wherein the number of the driven half gears 9 is three, the outer surface of the driven half gears 9 is movably arranged close to the outer surface of the driving gear 8, the driving gear 8 and the driven half gears 9 are in meshing, a connecting plate 10 is welded on one side of the outer surface of the driven half gears 9, and a limiting mechanism is further arranged in the connecting plate 10 and used for limiting and fixing the workpiece.

[0020] The workpiece is placed on the upper surface of the limiting support 5, the servo motor 7 is started to drive the driving gear 8 to rotate, the driving gear 8 drives the plurality of driven half gears 9 to rotate, the driven half gears 9 in rotation drive the connecting plate 10 to move along the outer surface of the limiting support 5, the connecting plate 10 drives the clamping piece 13 to movably clamp the outer surface of the workpiece, and then the connecting plate 10 cooperates with the clamping piece 13 to be applicable to workpieces of different sizes, thereby realizing the active adjustment effect of the driving gear 8 on the plurality of connecting plates 10 and clamping pieces 13.

[0021] Refer to Fig. 2 and Fig. 3 The limiting mechanism comprises a guide groove 11 formed in the upper surface of the connecting plate 10, a movable piece 12 movably mounted in the guide groove 11, wherein the outer diameter of the movable piece 12 is smaller than the interval between the front and rear ends of the inner wall of the guide groove 11, the guide groove 11 and the movable piece 12 are in mutual embedding, the clamping piece 13 is fixedly mounted at the top end of the movable piece 12, the limiting bolt 14 is threadedly connected to the middle part of the bottom end of the movable piece 12, the connecting baffle 15 is sleeved with one side of the outer surface of the limiting bolt 14, and one end of the connecting baffle 15 abuts against the lower bottom surface of the connecting plate 10.

[0022] The movable piece 12 is pulled to adjust the placement position in the connecting plate 10, the limiting bolt 14 is rotated to be threadedly connected into the movable piece 12 from the bottom end of the connecting plate 10, the limiting bolt 14 pushes the connecting baffle 15 to abut against the lower bottom surface of the connecting plate 10, then the limiting bolt 14 fixes the movable piece 12 in the guide groove 11, and the clamping piece 13 is stably placed at different positions on the upper surface of the connecting plate 10, thereby realizing the fixing effect of the clamping piece 13 at different positions in the connecting plate 10.

[0023] The implementation principle of the positioning device of the pneumatic tapping machine is as follows: the workpiece is placed on the upper surface of the limiting support 5, the movable part 12 is pulled to adjust the placement position along the inside of the connecting plate 10, the limiting bolt 14 is rotated to be screwed into the movable part 12 along the bottom end of the connecting plate 10, the limiting bolt 14 pushes the connecting baffle 15 to abut against the lower bottom surface of the connecting plate 10, and then the limiting bolt 14 fixes the movable part 12 in the guide groove 11, the clamping part 13 is adjusted to be stably placed at different positions on the upper surface of the connecting plate 10, and the servo motor 7 is started to rotate to drive the driving gear 8 to rotate, so that the driving gear 8 drives the plurality of driven half gears 9 to rotate, the driven half gears 9 in rotation drive the connecting plate 10 to move along the outer surface of the limiting support 5, so that the connecting plate 10 drives the clamping part 13 to move and clamp the outer surface of the workpiece, and then the connecting plate 10 cooperates with the clamping part 13 to be suitable for workpieces of different sizes, and the input end of the power supply of the servo motor 7 is electrically connected with the output end of the external power supply; compared with the prior art, the scheme has the effect of conveniently limiting and fixing the workpiece of irregular shape, improves the stability of the workpiece tapping, solves the problem that the accuracy is affected due to unstable placement of the workpiece during machining, and improves the overall use efficiency of the pneumatic tapping equipment 1.

[0024] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0025] Secondly: the utility model discloses the embodiment of the drawings only relates to the structure involved in the embodiment of the present disclosure, and other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0026] Finally: the above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc.

[0027] The above are the preferred embodiments of the present application, and are not used to limit the protection scope of the present application, so: any equivalent change made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.

Claims

1. A positioning device of a pneumatic tapping machine, comprising a pneumatic tapping device (1), a movable support (2) is arranged at the top edge of the pneumatic tapping device (1), and a tap (3) is arranged at one end edge of the movable support (2), characterized in that: The pneumatic tapping equipment (1) upper surface fixed mounting has the placement platform (4), the placement platform (4) top middle part is provided with the limiting support (5), the limiting support (5) inside is opened with fixed inner cavity (6), the fixed inner cavity (6) inside is installed with servo motor (7), the servo motor (7) upper surface output end extends to the limiting support (5) inner top and is installed with driving gear (8), the limiting support (5) inner top is close to the driving gear (8) outer surface rotationally installed with several driven half gear (9), the driven half gear (9) outer surface one side is welded with the connecting plate (10), the connecting plate (10) inside is also provided with limiting mechanism, for workpiece limiting fixation.

2. A positioning device for a gas-powered tapping machine according to claim 1, characterized in that: The limiting mechanism includes a guide slot (11), the guide slot (11) is through the opening on the upper surface of the connecting plate (10), the guide slot (11) is movably installed with a movable element (12), the movable element (12) top fixed mounting has clamping element (13), the movable element (12) bottom middle part is connected with a limiting bolt (14).

3. A positioning device for a gas-powered tapping machine according to claim 1, characterized in that: The number of driven half gear (9) is three, the driven half gear (9) outer surface activity is close to the outer surface of the driving gear (8), the driving gear (8) and driven half gear (9) are engaged with each other.

4. A positioning device for a gas-powered tapping machine according to claim 2, characterized in that: The outer diameter of the movable element (12) is less than the distance between the front and rear ends of the inner wall of the guide slot (11), and the guide slot (11) and the movable element (12) are embedded with each other.

5. A positioning device for a gas-powered tapping machine according to claim 2, characterized in that: The limiting bolt (14) outer surface one side edge is equipped with a connecting baffle (15), and the connecting baffle (15) one end abuts on the lower bottom surface of the connecting plate (10).

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