Continuous non-retracting tapping intelligent machining equipment and method

Abstract

The invention discloses continuous non-retracting tapping intelligent machining equipment and method.The continuous non-retracting tapping intelligent machining equipment comprises a discharging device, a main shaft feeding device, a clamping device, a cooling and lubricating device, a screw tap automatic loading and unloading device and a control device.The discharging device conveys objects to a machining platform, and the machining platform fixes the objects through an air cylinder; the clamping device is used for fixing the screw tap, the main shaft is used for controlling the screw tap to move downwards, the screw tap is used for tapping, the nozzle is used for cooling objects, the objects are pushed to the discharging port after being machined, the discharging port is connected with the stacker, and the workpieces are arranged in sequence. When the object is conveyed away, the screw tap is pushed back by the air cylinder again to be connected into the main shaft, the cooling liquid flows into the water tank through the water outlet, and the scrap iron enters the scrap iron box. According to the invention, a working mode of only one-time through hole tapping and no tool retracting is adopted, so that the screw tap is not damaged, threads are not damaged, and meanwhile, the machining efficiency and the machining precision can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of machining techniques, in particular to a kind of continuous no-tool tapping intelligent processing equipment and method. BACKGROUND

[0002] Tapping through hole is widely used in various fields, mainly realizes the connection of part in machining, for each part needing to be connected through through hole, precise assembly cannot be separated from the precision and integrity of internal thread of through hole.It can be known from this: in machining, realize the precision positioning of through hole and the integrity of internal thread is the two big difficulties of guaranteeing machining precision.This plays a decisive role for efficient production and precise fit.

[0003] At present, there are various ways to tap through hole: manual tapping (manual tap wrench) and mechanical tapping (drilling machine, lathe, milling machine), the above method can basically meet the basic operation of tapping through hole at present, but there are still great deficiencies for quality, cost, mass production and other problems: (1), manual tapping: consume a lot of labor to tap, the effect is poor and consumes labor, and different people tap the difference, poor uniformity.

[0004] (2), mechanical tapping: the existing ordinary tapping machine needs to retreat after tapping hole once, makes tap reverse rotation and pushes out threaded hole, in this process, because of the reasons such as the speed of retreat, workpiece material properties, not only will damage tap, but also may damage thread, lead to the decline of processing efficiency, affect machining precision. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art, provide a continuous no-tool tapping intelligent processing equipment and method which is reasonable in design and can realize high efficiency, high precision and high stability.

[0006] The technical scheme of the present application is: A continuous non-retracting tapping intelligent processing equipment comprises a frame, a processing platform is provided in the middle of the frame, a first cylinder, a second cylinder and a drilling through hole are respectively provided on the processing platform, a spindle feeding device and a blanking device are respectively provided on the upper part of the frame, a tap automatic loading and unloading device is provided on the lower part of the frame, the drilling through hole is respectively corresponding to the spindle feeding device and the tap automatic loading and unloading device, the tap automatic loading and unloading device comprises a fourth cylinder and a tap slot, the fourth cylinder The cylinder can lift the tap groove to complete the reception and delivery of the tap. The feeding device is provided with a magnetic device to make the lower end of the rotating spindle of the feeding device adsorb and fix to the upper end of the tap. The second cylinder corresponds to the discharge port of the blanking device and can deliver the object from the discharge port to the pending station. The first cylinder corresponds to the drilling through hole and can deliver the object from the pending station to the tapping station. The feeding device, the first cylinder, the second cylinder, the fourth cylinder and the blanking device are all connected to the control device.

[0007] Furthermore: the unloading device includes a vibration plate and a conveyor belt, the vibration plate includes an ultrasonic vibrator, a rubber pad and a slide rail, which can discharge objects in sequence, and the discharge port of the conveyor belt is set on the processing platform.

[0008] Furthermore: the conveyor belt is provided with sensors, and there are at least two sensors, one is provided at the lower part, indicating the minimum number of objects, and the other is provided at the upper part, indicating the maximum number of materials. If the objects are less than the minimum number, feeding starts, and if the materials are more than the maximum number, feeding stops, thereby realizing continuous production.

[0009] Furthermore: a clamping device is provided on the processing platform, and the clamping device includes a third cylinder and two claws. The third cylinder controls the movement of the two claws to realize the opening and closing of the two claws. When the tap is ready to tap downward, the third cylinder is pushed out, and the two claws clamp the tap to fix the tap. When tapping begins, the third cylinder retracts and the two claws release the tap.

[0010] Furthermore: a cooling and lubricating device is provided on the frame, and the cooling and lubricating device includes a water tank, a water pump, a pipe and a nozzle. Water is sprayed out from the nozzle to cool the object, take away the iron filings, and flow into the water tank. The water in the water tank is pumped back to the nozzle by the water pump and recirculated.

[0011] Furthermore: the outer end of the piston rod of the first cylinder is connected to the fixed block, and the outer end of the piston rod of the second cylinder is connected to the stop block.

[0012] A continuous no-retract tapping intelligent processing method using the continuous no-retract tapping intelligent processing equipment comprises the following steps: (1) Tapping preparation: First, the material to be tapped is transported to the processing platform using the unloading device, then the material is sent from the discharge port to the waiting position using the second cylinder, and finally the material is sent from the waiting position to the tapping position using the first cylinder; (2) Tapping: First, the upper end of the tap is fixed to the lower end of the rotating spindle by adsorption, and then the rotating spindle is lowered and rotated, and the object is tapped with the tap. When the object is penetrated, the rotating spindle moves upward, and the tap is blocked by the object, overcoming the magnetic force of the magnetic device and falling into the tap groove. The fourth cylinder drives the tap groove downward, so that the tap is separated from the object; (3) Discharging: First, the first cylinder retracts, and the object is pushed back to the waiting position by the ejector provided at the tapping station. Then, the second cylinder is used to send the object from the waiting position to the discharging port of the processing platform, completing one tapping operation. (4) Automatic installation of taps: The fourth cylinder is used to lift the tap slot upward, so that the upper end of the tap that has fallen into the tap slot contacts the rotating spindle. The tap is again adsorbed and connected to the rotating spindle through the magnetic device. At the same time, the tap and the rotating spindle are connected together through the matching prisms and prism holes, completing the installation of the tap and proceeding to the next working cycle.

[0013] Furthermore: In step (2), a cooling and lubricating device is used to spray water on the tapping part to achieve lubrication and remove iron chips.

[0014] Furthermore: In step (2), a sponge pad is placed in the tap groove, and when the tap falls, the tap head contacts the sponge pad to prevent damage.

[0015] Furthermore: the control device includes an electrical cabinet and a touch-type operation screen, the electrical cabinet is placed at the lower part of the rack, and the touch-type operation screen is connected to the rack.

[0016] The beneficial effects of the present invention are: 1. The present invention adopts a working mode of tapping the through hole only once and not retracting the tool, which neither damages the tap nor the thread, and can also improve the processing efficiency and processing accuracy.

[0017] 2. The present invention utilizes an ultrasonic vibrator and, by controlling the distance between the ultrasonic vibrator and the slide rail, can prevent the object from vibrating on the slide rail and only vibrate in other areas, thereby allowing the object to enter the slide rail and be sorted, thus achieving stable directional sorting of the objects. This allows the objects to be numbered in sequence when entering the processing platform, thereby significantly improving the efficiency of tapping.

[0018] 3. The present invention adopts automatic tap reset technology. When the tap completes tapping, it will fall onto the sponge pad in the tap groove below due to the obstruction of the object. When the object is pushed away, the cylinder pushes out the tap. The tap is connected to the magnetic block of the rotating spindle above and connected through a clamping block to realize tap reset, which greatly improves efficiency.

[0019] 4. The present invention uses multiple cylinders, manipulators, fixtures and other areas to realize pneumatic control of machinery, and uses code to strictly control the output and retraction of the cylinder, thereby achieving control accuracy, so that the object can fall perfectly on the tapping area, and the tap can be perfectly above the object.

[0020] 5. The present invention has a reasonable design and can quickly adapt to tapping objects of different sizes and types, doubling the tapping speed of objects through holes. It is used for magnetic connection of taps and can also adopt fixed connection in various ways. This is of great significance to the progress of my country's automation technology, high-tech innovation direction and process technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of a continuous no-retract tapping intelligent processing equipment; Figure 2 for Figure 1 The upper right perspective of a continuous no-retraction tapping intelligent processing equipment is shown; Figure 3 for Figure 1 A rear view of a continuous no-retract tapping intelligent processing equipment is shown; Figure 4 for Figure 1 The upper left view of a continuous no-retract tapping intelligent processing equipment is shown; Figure 5 for Figure 1 The right side view of a continuous no-retract tapping intelligent processing equipment is shown; Figure 6 for Figure 1 A specific view of the working platform of a continuous no-retraction tapping intelligent processing equipment is shown. DETAILED DESCRIPTION

[0022] Example: See Figures 1-6In the figure: 1-working platform; 2-clamping device; 3-feeding device; 4-unloading device; 5-control device; 6-reset device; 7-tap; 8-manipulator; 9-first cylinder; 10-nozzle; 11-infrared sensor; 12-touch operation screen; 13-second cylinder; 14-conveyor belt; 15-vibrating plate; 16-feeding port; 17-water pump; 18-electrical cabinet; 19-third cylinder; 20-chip box; 21-tap slot; 22-fourth cylinder; 23-discharge port; 24-fixed block; 25-object; 26-stop block; 27-discharge port.

[0023] The object 25 enters the vibration plate 15 through the feeding port 16. The object passes through the relevant cooperation of the ultrasonic vibrator and the slide rail in the vibration plate 15. By controlling the distance between the ultrasonic vibrator and the slide rail, the object does not vibrate on the slide rail, but only vibrates in other areas, so that the object enters the slide rail and is sorted. The objects 25 enter the unloading mechanism 4 in a complete sorting manner. On one side of the unloading mechanism 4, there is an infrared sensor 11 to ensure that there are a certain amount of objects 25 on the unloading mechanism 4 and that there are objects 25 on the working platform 1 to work. The object 25 is controlled by the block 26 pushed out by the second cylinder 13 to enter the working platform 1 and enter the pending work station.

[0024] On the work platform 1, the first cylinder 9 controls the object 25 to enter the tapping station from the waiting station. The tapping station is equipped with an elastic push rod mechanism (not shown in the figure). The elastic push rod mechanism includes a spring and an ejector pin. During tapping, the first cylinder 9 and the ejector pin simultaneously press the object 25 from two opposite directions to position the object 25. The tapping station is equipped with a drilling hole. The tap 7 is fixed to the top of the object 25 by the robot 8 (i.e., the clamping device 2). Then the feed device 3 starts to rotate rapidly and begins to tap the object 25. When the object 25 is just beginning to be tapped, the robot 8 retracts. When the object 25 is tapped through, The rotating spindle moves upward, and the tap 7 is blocked by the object 25, overcoming the magnetic force of the magnetic device and falling into the tap groove 21 after drilling the through hole; there is a sponge pad in the tap groove 21. After tapping is completed, the first cylinder 9 retracts, and the spring loses the pressing force of the first cylinder 9, so the ejector pin is pushed out. The ejector pin can pull the object 25 from the tapping station back to the waiting station, and then is pushed to the discharge port 23 by the stopper 26. The fourth cylinder 22 pushes back the tap 7 that has fallen on the sponge pad. The tap 7 is attracted by the magnetic block on the spindle and returns to its original position. The stopper 26 puts down another object 25 for re-tapping. When the tapping of the object 25 is completed, it comes to the discharge port 23 and is stacked manually or by an automated robot arm.

[0025] In order to avoid the chemical effect of the heating of the object in the tapping process to change the performance of the object, the cooling liquid is sprayed out from the nozzle 10, and the tapping process is continuously cooled, the cooling liquid is supplied by the water tank, and is pumped out to the nozzle by the water pump, the cooling liquid will take away the iron filings left by the tapping in the process of cooling the object, and enters the iron filings tank 20 together, and the cooling liquid flows into the water tank through the gap hole to circulate.

[0026] After the tapping is finished, the tool is not withdrawn, the reverse is not turned, and the secondary tapping is not performed, under the new technology, the equipment is more efficient, the traditional tapping structure is broken, the new technology is utilized, the advanced intelligence such as the programmed mechanical arm is added, and the Internet of Things is matched, firstly, the new century automation is realized.

[0027] The touch operation screen 12 is utilized to firstly manufacture the new technology of automation, the numerical control machine tool programming technology is utilized, the new scheme is introduced, the tapping is more efficient, there are safety buttons, emergency stop buttons, key starting and corresponding codes for protection on the touch screen, in order to the safety of workers, three protections are set up.

[0028] The above is only the preferred embodiment of the present application, and does not limit the present application in any form, and any simple modification according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.

Claims

1. A continuous tapping intelligent processing equipment without retraction, including a frame, characterized by : A processing platform is provided in the middle of the frame, and a first cylinder, a second cylinder and a drilling through hole are respectively provided on the processing platform, a spindle feeding device and a blanking device are respectively provided on the upper part of the frame, and an automatic tap loading and unloading device is provided at the lower part of the frame, and the drilling through hole corresponds to the spindle feeding device and the automatic tap loading and unloading device up and down respectively, the automatic tap loading and unloading device includes a fourth cylinder and a tap slot, the fourth cylinder can lift the tap slot to complete the receiving and sending of the tap, a magnetic device is provided on the feeding device, so that the lower end of the rotating spindle of the feeding device is adsorbed and fixed to the upper end of the tap, the second cylinder corresponds to the discharge port of the blanking device, and can send the object from the discharge port to the waiting station, the first cylinder corresponds to the drilling through hole, and can send the object from the waiting station to the tapping station, the feeding device, the first cylinder, the second cylinder, the fourth cylinder and the blanking device are all connected to the control device.

2. The continuous tapping intelligent processing equipment without backing off according to claim 1 is characterized in that :The unloading device includes a vibration plate and a conveyor belt. The vibration plate includes an ultrasonic vibrator, a rubber pad and a slide rail, which can discharge objects in sequence. The discharge port of the conveyor belt is set on the processing platform.

3. The continuous tapping intelligent processing equipment without backing off according to claim 2 is characterized in that : The conveyor belt is provided with sensors, and there are at least two sensors, one is provided at the lower part, indicating the minimum number of objects, and the other is provided at the upper part, indicating the maximum number of materials. If the objects are less than the minimum number, feeding starts, and if the materials are more than the maximum number, feeding stops, thereby realizing continuous production.

4. The continuous tapping intelligent processing equipment without backing off according to claim 1 is characterized in that : The processing platform is provided with a clamping device, which includes a third cylinder and two claws. The third cylinder controls the movement of the two claws to realize the opening and closing of the two claws. When the tap is ready to tap downward, the third cylinder is pushed out, and the two claws clamp the tap to fix the tap. When tapping begins, the third cylinder retracts and the two claws release the tap.

5. The continuous tapping intelligent processing equipment without backing off according to claim 1 is characterized in that : The frame is provided with a cooling and lubricating device, which includes a water tank, a water pump, a pipe and a nozzle. Water is sprayed out from the nozzle to cool the object, take away the iron filings, and flow into the water tank. The water in the water tank is pumped back to the nozzle by the water pump and recirculated.

6. The continuous tapping intelligent processing equipment without backing off according to claim 1 is characterized in that :The outer end of the piston rod of the first cylinder is connected to the fixed block, and the outer end of the piston rod of the second cylinder is connected to the stop block.

7. A method for continuous no-retract tapping intelligent processing using the continuous no-retract tapping intelligent processing equipment according to any one of claims 1 to 6, comprising the following steps: (1) Tapping preparation: First, the material to be tapped is transported to the processing platform using the unloading device, then the material is sent from the discharge port to the waiting position using the second cylinder, and finally the material is sent from the waiting position to the tapping position using the first cylinder; (2) Tapping: First, the upper end of the tap is fixed to the lower end of the rotating spindle by adsorption, and then the rotating spindle is lowered and rotated, and the object is tapped with the tap. When the object is penetrated, the rotating spindle moves upward, and the tap is blocked by the object, overcoming the magnetic force of the magnetic device and falling into the tap groove. The fourth cylinder drives the tap groove downward, so that the tap is separated from the object; (3) Discharging: First, the first cylinder retracts, and the object is pushed back to the waiting position by the ejector provided at the tapping station. Then, the second cylinder is used to send the object from the waiting position to the discharging port of the processing platform, completing one tapping operation. (4) Automatic installation of taps: The fourth cylinder is used to lift the tap slot upward, so that the upper end of the tap that has fallen into the tap slot contacts the rotating spindle. The tap is again adsorbed and connected to the rotating spindle through the magnetic device. At the same time, the tap and the rotating spindle are connected together through the matching prisms and prism holes, completing the installation of the tap and proceeding to the next working cycle.

8. The continuous tapping without tool retraction intelligent processing method according to claim 1 is characterized in that : In step (2), the tapping part is sprayed with water using a cooling and lubricating device to achieve lubrication and remove iron chips.

9. The continuous tapping without backing off intelligent processing method according to claim 1 is characterized in that : In step (2), a sponge pad is placed in the tap groove. When the tap falls, the tap head contacts the sponge pad to prevent damage.

10. The continuous tapping without tool retraction intelligent processing method according to claim 1 is characterized in that :The control device includes an electrical cabinet and a touch-type operation screen. The electrical cabinet is placed at the bottom of the rack, and the touch-type operation screen is connected to the rack.

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