Automatic tapping machining device

Abstract

The invention discloses an automatic tapping machining device, and belongs to the technical field of tapping machining, the automatic tapping machining device comprises a workbench and a lifting frame located on the workbench, the lifting frame is provided with a driving box, the lifting frame is provided with a lifting motor used for driving the driving box to ascend and descend, the bottom wall of the driving box is rotatably provided with a driving shaft, and the driving shaft is connected with the driving box. A clamping head is mounted at the bottom end of the driving shaft, and a screw tap is mounted on the clamping head; a driving motor is installed on the top wall of the driving box, an output shaft of the driving motor penetrates through the driving box and is connected with a first gear, a first rotating shaft and a second rotating shaft are rotatably installed in the driving box, a second gear is installed on the first rotating shaft, and a third gear is installed on the second rotating shaft; the first gear is located between the second gear and the third gear. By means of the driving box, automatic forward rotation and overturning of the screw tap are achieved in the tapping process, complex operation is not needed, the automation degree is high, the manufacturing cost is low, and the tapping effect is guaranteed.

Description

Technical Field

[0004] The invention relates to the technical field of tapping processing, and in particular to an automatic tapping processing device. Background Art

[0005] During the electrical machining process, materials and parts need to be tapped, that is, using a tap to cut internal threads on the workpiece. During the tapping process, the tap needs to be turned over in a timely manner to help break and remove chips, which is especially important in the processing of materials that are not easy to remove chips. Realizing the forward and reverse rotation of the tap is a key step to ensure machining quality and efficiency.

[0006] At present, tapping is mainly divided into manual tapping and automatic tapping. Manual tapping is time-consuming and labor-intensive, and requires a high level of operator proficiency. Automatic tapping is achieved by controlling the spindle rotation and feed synchronization through the machine tool. In this way, the corresponding program is set so that the forward and reverse rotation of the tap is automatically controlled by the machine tool. However, the cost of such a set of equipment is relatively high and is not suitable for some cost-sensitive companies. For this reason, we provide a simple-to-operate, low-cost automatic tapping processing device. Summary of the invention

[0007] The purpose of the present invention is to provide an automatic tapping processing device to solve the following technical problems: the current manual tapping is time-consuming and labor-intensive, and requires high operator proficiency, while automatic control utilizes machine tools and computer control, which is costly and is not suitable for some cost-sensitive enterprises.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] An automatic tapping processing device comprises a workbench and a lifting frame located on the workbench, a driving box is installed on the lifting frame, a lifting motor is installed on the lifting frame to drive the driving box to lift, a driving shaft is rotatably installed on the bottom wall of the driving box, a chuck is installed at the bottom end of the driving shaft, and a tap is installed on the chuck;

[0010] A driving motor is installed on the top wall of the driving box, and the output shaft of the driving motor passes through the driving box and is connected to a first gear. A first rotating shaft and a second rotating shaft are rotatably installed in the driving box, the second rotating shaft is installed on the second rotating shaft, and the third gear is installed on the second rotating shaft. The first gear is located between the second gear and the third gear, and the first gear is respectively meshed with the second gear and the third gear. A first sector gear is also installed on the first rotating shaft, and a second sector gear is installed on the second rotating shaft. The top end of the driving shaft extends into the driving box and is installed with a fourth gear, and the fourth gear is respectively meshed with the first sector gear and the second sector gear.

[0011] As a further solution of the present invention: L-shaped support rods are symmetrically installed on the workbench, and an L-shaped connecting rod is movably arranged on the support rod, one end of the connecting rod is fixedly connected to the drive box, and the other end is fixed with a first wedge block, and lubricant boxes are symmetrically arranged on the workbench, and telescopic rods are movably arranged on the side walls away from each other of the two lubricant boxes, one end of the telescopic rod is connected to a push plate, and the other end is connected to a second wedge block, the second wedge block is in contact with the first wedge block, and a first spring is mounted on the telescopic rod, and discharge pipes are connected to the side walls close to each other of the two lubricant boxes.

[0012] As a further solution of the present invention: an air pump is fixed on the support rod, the piston rod of the air pump is fixedly connected to the second wedge block, the telescopic rod includes a sleeve, a second spring is connected inside the sleeve, one end of the second spring is connected to a moving rod, the moving rod is fixedly connected to the push plate, the air outlet pipe of the air pump is connected to the sleeve, an exhaust pipe is connected to the sleeve, and an exhaust valve is installed on the exhaust pipe.

[0013] As a further solution of the present invention: a pressure valve is installed on the discharge pipe.

[0014] As a further solution of the present invention: a plurality of indicator blocks are evenly arranged on the top wall of the lubricant box along the length direction, the bottom of the indicator block and the top of the push plate are both provided with inclined surfaces, a fixing rod is fixed to the top of the lubricant box, a plurality of the indicator blocks are each provided with a through hole, a cross bar is fixed on the fixing rod, and the cross bar passes through the through hole.

[0015] As a further solution of the present invention: a third wedge block is fixed to the top of one side wall of the push plate, one end of the third wedge block extends to the outside of the lubricant box, a ring is fixed on the fixed rod, a fourth wedge block is movably provided on the ring, the fourth wedge block is in contact with the third wedge block, a magnetic rod is fixed to the top of the fourth wedge block, and the indicator block is made of iron material.

[0016] As a further solution of the present invention: a liquid leakage hole is opened on the workbench, and a collection box is fixed on the bottom of the workbench.

[0017] Beneficial effects of the present invention:

[0018] (1) The present invention provides a driving box, in which a first gear, a second gear, a third gear, a fourth gear, a first sector gear and a second sector gear are provided. When the motor drives the first gear to rotate, the first rotating shaft and the second rotating shaft rotate synchronously and in the same direction, so that the first sector gear and the second sector gear rotate synchronously and in the same direction. When the first sector gear is meshed with the fourth gear, the driving shaft drives the tap to rotate forward. When the second sector gear is meshed with the fourth gear, the driving shaft drives the tap to flip, thereby automatically realizing the forward and reverse rotation of the tap, without complicated operation, and with low manufacturing cost and good tapping effect.

[0019] (2) The present invention provides a lubricant box, a support rod, a first wedge block, a second wedge block, a telescopic rod and a push plate, etc., so that the lubricant in the lubricant box is automatically discharged each time the thread is tapped, and the workpiece and the tap are lubricated during the tapping process, thereby improving the tapping effect;

[0020] (3) The telescopic rod of the present invention is composed of a sleeve, a telescopic rod and a second spring, and cooperates with an air pump. After each tapping, the push plate is moved forward a certain distance, so that the amount of lubricant pushed out each time is the same and fixed, ensuring the smooth progress of tapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the drive box of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the first sector gear and the second sector gear of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the first wedge block, the second wedge block and the lubricant box of the present invention;

[0026] Figure 5 It is a schematic diagram of the internal structure of the lubricant box of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the telescopic rod of the present invention;

[0028] Figure 7 yes Figure 4 Enlarged view of point A in the middle.

[0029] In the figure: 1, workbench; 2, lifting frame; 3, driving box; 301, driving motor; 302, first gear; 303, first rotating shaft; 304, second gear; 305, first sector gear; 306, second rotating shaft; 307, third gear; 308, second sector gear; 309, fourth gear; 4, driving shaft; 5, chuck; 6, tap; 7, leakage hole; 8, collecting box; 9, supporting rod; 10, connecting rod; 11 , first wedge block; 12, lubricant box; 13, telescopic rod; 1301, sleeve; 1302, moving rod; 1303, second spring; 14, second wedge block; 15, first spring; 16, push plate; 17, discharge pipe; 18, pressure valve; 19, air outlet pipe; 20, air pump; 21, third wedge block; 22, fixed rod; 23, collar; 24, fourth wedge block; 25, magnetic rod; 26, indicator block; 27, cross bar.

[0030] The drawings are only used for illustrative purposes and are not to be construed as limitations of the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 3As shown, the present invention is an automatic tapping processing device, comprising a workbench 1 and a lifting frame 2 located on the workbench 1, a driving box 3 is installed on the lifting frame 2, a lifting motor is installed on the lifting frame 2 to drive the driving box 3 to lift, a driving shaft 4 is rotatably installed on the bottom wall of the driving box 3, a chuck 5 is installed at the bottom end of the driving shaft 4, and a tap 6 is installed on the chuck 5; a driving motor 301 is installed on the top wall of the driving box 3, and the output shaft of the driving motor 301 passes through the driving box 3 and is connected to a first gear 302, and the driving The first rotating shaft 303 and the second rotating shaft 306 are rotatably mounted in the box 3, the second gear 304 is mounted on the first rotating shaft 303, the third gear 307 is mounted on the second rotating shaft 306, the first gear 302 is located between the second gear 304 and the third gear 307, and the first gear 302 is meshed with the second gear 304 and the third gear 307 respectively, the first rotating shaft 303 is also mounted with a first sector gear 305, the second rotating shaft 306 is mounted with a second sector gear 308, and the top end of the driving shaft 4 extends into A fourth gear 309 is installed in the drive box 3, and the fourth gear 309 is meshed with the first sector gear 305 and the second sector gear 308 respectively; the workpiece to be tapped is placed on the workbench 1, and the drive box 3 is driven down by the lifting motor. When the tap 6 enters the processing hole of the workpiece, the drive motor 301 is started, and the drive motor 301 drives the first gear 302 to rotate. In the initial state, the first sector gear 305 and the fourth gear 309 are in a meshing state, and the second sector gear 308 and the fourth gear 309 are not yet The first gear 302 is meshed with the second gear 304 and the third gear 307 respectively, so that the first rotating shaft 303 and the second rotating shaft 306 rotate synchronously and in the same direction. The first sector gear 305 rotates to drive the fourth gear 309 and the driving shaft 4 to rotate forward, and the tap 6 can rotate forward. When the first sector gear 305 is disengaged from the fourth gear 309, the second sector gear 308 is meshed with the fourth gear 309. Similarly, the tap 6 is reversed to make the chips easy to be discharged after being broken. After repeating several times, the tapping operation can be completed.

[0033] See also Figure 1 , Figure 4 and Figure 5, an L-shaped support rod 9 is symmetrically installed on the workbench 1, and an L-shaped connecting rod 10 is movably arranged on the support rod 9. One end of the connecting rod 10 is fixedly connected to the driving box 3, and the other end is fixed with a first wedge block 11. A lubricant box 12 is symmetrically arranged on the workbench 1, and telescopic rods 13 are movably arranged on the side walls away from the two lubricant boxes 12. One end of the telescopic rod 13 is connected to a push plate 16, and the other end is connected to a second wedge block 14. The second wedge block 14 contacts the first wedge block 11, and a first spring 15 is sleeved on the telescopic rod 13. Discharge pipes 17 are connected to the side walls of the two lubricant boxes 12 that are close to each other, and a pressure valve 18 is installed on the discharge pipe 17; in order to improve the tapping effect, when the driving box 3 descends, the first wedge block 11 squeezes the second wedge block 14, so that the telescopic rod 13 moves toward the lubricant box 12, and the telescopic rod 13 drives the push plate 16 to move, and the lubricant is discharged through the discharge pipe 17, thereby improving the tapping effect.

[0034] See also Figures 4 to 6 As shown, an air pump 20 is fixed on the support rod 9, and the piston rod of the air pump 20 is fixedly connected to the second wedge block 14, and the telescopic rod 13 includes a sleeve 1301, and a second spring 1303 is connected inside the sleeve 1301, and one end of the second spring 1303 is connected to a moving rod 1302, and the moving rod 1302 is fixedly connected to the push plate 16, and the air outlet pipe 19 of the air pump 20 is connected to the sleeve 1301, and an exhaust pipe is connected to the sleeve 1301, and an exhaust valve is installed on the exhaust pipe; in order to make each tapping The amount of lubricant pushed out is the same. When the second wedge block 14 and the telescopic rod 13 are squeezed, the second wedge block 14 will pull the piston rod of the air pump 20 to move. When the tapping is completed, under the action of the first spring 15, the second wedge block 14 is reset. The second wedge block 14 pushes the piston rod of the air pump 20 to move for the pumping operation, thereby increasing the air pressure in the sleeve 1301 and resetting the sleeve 1301. The push plate 16 stays in place due to the action of the air pressure, so that the amount of lubricant discharged each time is the same.

[0035] See also Figure 5 and Figure 7A plurality of indicator blocks 26 are evenly arranged on the top wall of the lubricant box 12 along the length direction, and the bottom of the indicator block 26 and the top of the push plate 16 are both provided with inclined surfaces. A fixing rod 22 is fixed to the top of the lubricant box 12, and a plurality of indicator blocks 26 are provided with through holes. A cross bar 27 is fixed to the fixing rod 22, and the cross bar 27 passes through the through holes. A third wedge block 21 is fixed to the top of one side wall of the push plate 16, and one end of the third wedge block 21 extends to the outside of the lubricant box 12. A collar 23 is fixed to the fixing rod 22, and a collar 23 is fixed to the fixing rod 22. A fourth wedge block 24 is movably provided, and the fourth wedge block 24 is in contact with the third wedge block 21. A magnetic rod 25 is fixed to the top of the fourth wedge block 24, and the indicator block 26 is made of iron material. In order to facilitate the knowledge of the remaining amount of lubricant in the lubricant box 12, the push plate 16 moves each time tapping, which will push the indicator block 26 to rise. After the indicator block 26 rises, it is adsorbed on the magnetic rod 25. The operator can judge the remaining amount of lubricant in the lubricant box 12 according to the amount of the indicator block 26 rising, which is convenient for the operator to add lubricant.

[0036] See also Figure 1 A leakage hole 7 is provided on the workbench 1, and a collecting box 8 is fixed at the bottom of the workbench 1. The used lubricant enters the collecting box 8 through the leakage hole 7 for recycling.

[0037] The working principle of the present invention is as follows: a workpiece to be tapped is placed on a workbench 1, and a fixture (not shown) is used to fix the workpiece, and a lifting motor is started to drive a driving box 3 to descend. When the tap 6 enters the processing hole of the workpiece, a driving motor 301 is started to Figure 2 and Figure 3 Taking the perspective of as an example, in the initial state, the first sector gear 305 is in meshing state with the fourth gear 309, and the second sector gear 308 is not meshing with the fourth gear 309 yet, the driving motor 301 drives the first gear 302 to rotate clockwise, so that the first rotating shaft 303 and the second rotating shaft 306 rotate synchronously and counterclockwise, the first sector gear 305 rotates to drive the fourth gear 309 and the driving shaft 4 to rotate clockwise, and the tap 6 can rotate forward to cut an internal thread on the workpiece, when the first sector gear 305 is disengaged from the fourth gear 309, the second sector gear 308 is meshed with the fourth gear 309, so that the fourth gear 309 and the driving shaft 4 rotate counterclockwise, and the tap 6 is reversed, so that the chips are broken and easily discharged, and after repeated multiple times, the tapping operation can be completed;

[0038] A proper amount of lubricant is added to the lubricant box 12. During the cutting process, the driving box 3 is continuously lowered, and the first wedge block 11 squeezes the second wedge block 14, so that the telescopic rod 13 moves toward the lubricant box 12. The telescopic rod 13 drives the push plate 16 to move, and the pressure on the lubricant increases. The lubricant can be discharged through the discharge pipe 17 to flow to the tapping position to ensure the lubrication effect during the tapping process. After the push plate 16 moves for the first time, the third wedge block 21 will separate from the fourth wedge block 24. Under the action of gravity, the magnetic rod 25 will drop a certain distance. The movement of the push plate 16 will lift the indicator block 26, and the corresponding indicator block 26 will be adsorbed on the magnetic rod 25, so that the operator can intuitively see the position of the push plate 16, thereby judging the remaining lubricant in the lubricant box 12.

[0039] When the tapping is completed, the driving box 3 rises and resets. Under the action of the first spring 15, the sleeve 1301 and the second wedge block 14 are automatically reset. The second wedge block 14 pushes the piston rod of the air pump 20 to move for the pumping operation, thereby increasing the air pressure in the sleeve 1301. Under the action of the air pressure, the second spring 1303 is stretched, and the push plate 16 is still in the moved position, waiting for the next tapping. The tapping operation is repeated continuously, and each time the telescopic rod 13 is extended a distance. As the lubricant decreases, the same amount of lubricant can still be squeezed out to ensure the tapping effect. When the lubricant is used up, the exhaust valve is opened to discharge the air in the sleeve 1301. Under the action of the second spring 1303, the moving rod 1302 and the push plate 16 are reset. After the push plate 16 is reset, the third wedge block 21 lifts the fourth wedge block 24, causing the magnetic rod 25 to rise and disengage from the multiple indicator blocks 26. The multiple indicator blocks 26 are also automatically reset, and the lubricant box 12 can continue to add lubricant.

[0040] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An automatic tapping processing device, comprising a workbench (1) and a lifting frame (2) located on the workbench (1), characterized in that: A driving box (3) is installed on the lifting frame (2), a lifting motor is installed on the lifting frame (2) for driving the driving box (3) to move up and down, a driving shaft (4) is rotatably installed on the bottom wall of the driving box (3), a chuck (5) is installed at the bottom end of the driving shaft (4), and a tap (6) is installed on the chuck (5); A driving motor (301) is mounted on the top wall of the driving box (3); an output shaft of the driving motor (301) passes through the driving box (3) and is connected to a first gear (302); a first rotating shaft (303) and a second rotating shaft (306) are rotatably mounted in the driving box (3); a second gear (304) is mounted on the first rotating shaft (303); a third gear (307) is mounted on the second rotating shaft (306); the first gear (302) is located between the second gear (304) and the third gear (307). The first rotating shaft (303) is provided with a first sector gear (305), the second rotating shaft (306) is provided with a second sector gear (308), the top end of the driving shaft (4) extends into the driving box (3) and is provided with a fourth gear (309), and the fourth gear (309) is respectively engaged with the first sector gear (305) and the second sector gear (308).

2. The automatic tapping processing device according to claim 1, characterized in that: The workbench (1) is symmetrically provided with an L-shaped support rod (9), and the support rod (9) is movably provided with an L-shaped connecting rod (10), one end of the connecting rod (10) is fixedly connected to the driving box (3), and the other end is fixed with a first wedge block (11), and the workbench (1) is symmetrically provided with a lubricant box (12), and telescopic rods (13) are movably provided on the side walls away from each other of the two lubricant boxes (12), one end of the telescopic rod (13) is connected with a push plate (16), and the other end is connected with a second wedge block (14), and the second wedge block (14) is in contact with the first wedge block (11), and a first spring (15) is mounted on the telescopic rod (13), and a discharge pipe (17) is connected to the side walls of the two lubricant boxes (12) that are close to each other.

3. The automatic tapping processing device according to claim 2, characterized in that: An air pump (20) is fixed on the support rod (9), and the piston rod of the air pump (20) is fixedly connected to the second wedge block (14). The telescopic rod (13) includes a sleeve (1301), and a second spring (1303) is connected inside the sleeve (1301). One end of the second spring (1303) is connected to a moving rod (1302), and the moving rod (1302) is fixedly connected to the push plate (16). The air outlet pipe (19) of the air pump (20) is connected to the sleeve (1301), and an exhaust pipe is connected to the sleeve (1301), and an exhaust valve is installed on the exhaust pipe.

4. The automatic tapping processing device according to claim 3, characterized in that: A pressure valve (18) is installed on the discharge pipe (17).

5. The automatic tapping processing device according to claim 3, characterized in that: A plurality of indicator blocks (26) are evenly arranged on the top wall of the lubricant box (12) along the length direction, the bottom of the indicator block (26) and the top of the push plate (16) are both provided with inclined surfaces, a fixing rod (22) is fixed to the top of the lubricant box (12), a plurality of the indicator blocks (26) are each provided with a through hole, a cross bar (27) is fixed to the fixing rod (22), and the cross bar (27) passes through the through hole.

6. The automatic tapping processing device according to claim 5, characterized in that: A third wedge block (21) is fixed to the top of one side wall of the push plate (16), one end of the third wedge block (21) extends to the outside of the lubricant box (12), a collar (23) is fixed to the fixing rod (22), a fourth wedge block (24) is movably arranged on the collar (23), the fourth wedge block (24) is in contact with the third wedge block (21), a magnetic rod (25) is fixed to the top of the fourth wedge block (24), and the indicating block (26) is made of iron material.

7. The automatic tapping processing device according to claim 3, characterized in that: A liquid leakage hole (7) is provided on the workbench (1), and a collection box (8) is fixed at the bottom of the workbench (1).

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