Distribution shaft deep hole machining device

Abstract

The invention belongs to the technical field of deep hole machining, and discloses a distribution shaft deep hole machining device which comprises a supporting frame, a feeding assembly, a first clamping assembly located above the feeding assembly and used for clamping a distribution shaft, a second clamping assembly used for clamping a cutter, a flushing mechanism, a cutting mechanism and a cutting mechanism. Comprising a sealing tank sleeving the outer wall of a cutter, the outer wall of the sealing tank symmetrically communicates with a first pipeline and a second pipeline, the first pipeline communicates with the second pipeline, a piston is slidably installed on the inner wall of the sealing tank, and check blocks used for closing and opening the second pipeline are symmetrically installed on the outer wall of the piston; the adjusting mechanism comprises sliding rods symmetrically installed on the piston, one sides of the sliding rods penetrate through the sealing tank to be provided with magnets, the sides, away from the sliding rods, of the magnets abut against Hall elements, and the Hall elements are electrically connected with the feeding assembly and the rotating assembly. The problem that when an existing device is not smooth in chip removal, a cutter is prone to overload operation, and consequently the machining precision is affected is solved.

Description

Technical Field

[0001] The invention relates to the technical field of deep hole processing, in particular to a distribution shaft deep hole processing device. Background Art

[0002] The distributor shaft is one of the key components in the internal combustion engine. It is responsible for controlling the opening and closing timing of the engine valve, thereby adjusting the duration and timing of the valve opening and closing to achieve the function of the fuel-air mixture entering the combustion chamber and the exhaust gas discharge. Since there are usually multiple long and thin holes on the distributor shaft, which are used to guide the oil or other lubricating liquids, as well as the cooling system, the distributor shaft must be deep-hole processed during manufacturing. The deep-hole processing is formed by the linear feed motion of the tool and the workpiece. As the tool penetrates deep into the workpiece, the effective discharge of debris is crucial.

[0003] The Chinese patent discloses a "chip removal device for deep hole processing in parts" with application number 202222663013.X, which includes an outer pipe fixedly connected to the bed of a lathe, an inner pipe pivotally connected to the outer pipe, a liquid inlet pipe connected to one end of the inner pipe through a rotating joint, a high-pressure pump connected to the liquid inlet pipe and used to pump in a cleaning liquid, and a nozzle fixedly arranged relative to the outer pipe and connected to the other end of the inner pipe, the nozzle having a spray hole for spraying the cleaning liquid, and when the part is fixed on the lathe, the axis of the inner pipe coincides with the axis of the inner deep hole of the part, and the spray hole faces the inner deep hole of the part.

[0004] Although the device can perform multi-angle spraying on deep holes of parts, as the hole depth increases, the impact force at the spray hole will become smaller, and chip removal will become unsmooth, so that the tool cannot maintain a good working condition. In addition, when the chip removal is stuck, the device cannot effectively adjust the feed speed and cutting speed of the tool, which will cause the tool to overload and affect the accuracy of the workpiece. Summary of the invention

[0005] The purpose of the present invention is to provide a distribution shaft deep hole processing device, which solves the problem that when the chip removal is not smooth in the existing device, the tool is prone to overload operation, thereby affecting the processing accuracy.

[0006] To achieve the above object, the present invention provides the following technical solution: a distribution shaft deep hole processing device, comprising a support frame, a feed assembly located on the support frame, and a first clamping assembly located above the feed assembly for clamping the distribution shaft and a second clamping assembly for clamping the tool, wherein a rotating assembly is installed on one side of the second clamping assembly, and further comprising: The flushing mechanism comprises a sealing tank sleeved on the outer wall of the tool, wherein the outer wall of the sealing tank is symmetrically connected with a first pipeline and a second pipeline, and the first pipeline and the second pipeline are connected with each other, a piston is slidably installed on the inner wall of the sealing tank, and a stopper for closing and opening the second pipeline is symmetrically installed on the outer wall of the piston; the cleaning liquid in the first pipeline enters the hole through the sealing tank and the tool, and as the depth of the hole increases, the piston will gradually open the second pipeline, so that the flow rate of the cleaning liquid becomes larger; The adjusting mechanism comprises a sliding rod symmetrically installed on the piston, a magnet is installed on one side of the sliding rod passing through the sealing tank, a Hall element is abutted on the side of the magnet away from the sliding rod, and the Hall element is electrically connected to the feeding assembly and the rotating assembly respectively; when the chip removal is not smooth, the cleaning fluid in the sealing tank will squeeze the piston, the piston will drive the block to move, the second pipeline will be fully opened, and at the same time the piston will drive the magnet away from the Hall element through the sliding rod, at this time the feeding assembly and the rotating assembly adjust the feeding speed and rotation speed of the tool.

[0007] Preferably, the feeding assembly includes a first servo motor, the first servo motor is fixedly mounted on the outer wall of the support frame, and the output shaft of the first servo motor passes through the support frame and is equipped with a bidirectional screw.

[0008] Preferably, a third slider is installed on the lower end surface of the first clamping assembly, the third slider is threadedly connected to the bidirectional screw, a round rod is slidably installed on the side of the third slider away from the bidirectional screw, and both ends of the round rod are installed on the support frame.

[0009] Preferably, the rotating assembly includes a first slider, the first slider is threadedly connected to the bidirectional screw rod, the first slider is slidably connected to the round rod, a second servo motor is installed on the outer wall of the first slider, and the output shaft of the second servo motor is fixedly connected to the second clamping assembly.

[0010] Preferably, a water tank is provided on the upper end surface of the support frame, a filter is installed on the inner wall of the water tank, and a water pump is installed on the upper end surface of the water tank.

[0011] Preferably, the lower end surface of the first pipeline passes through the filter and is connected to the water pump.

[0012] Preferably, a through hole is provided at the center of the tool, an opening is provided on the outer wall of the tool corresponding to the sealing can, and the opening is communicated with the through hole.

[0013] Preferably, a spring is installed on the inner wall of the sealing tank, and the spring is fixedly connected to the piston.

[0014] Preferably, a second slider is installed on the lower end surface of the sealing tank, the second slider is threadedly connected to the bidirectional screw rod, the second slider is slidably connected to the round rod, and a support rod is symmetrically installed on the upper end surface of the second slider, and the support rod is fixedly connected to the Hall element.

[0015] Preferably, a control panel is installed on the outer wall of the support frame, and the control panel is electrically connected to the Hall element.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a flushing mechanism. As the depth of the hole increases and the resistance to the spraying of the cleaning liquid increases, the cleaning liquid will be retained in the sealed tank and squeeze the piston. The piston drives the slide bar and the stopper to move toward one side of the distribution shaft, and the piston squeezes the spring. At this time, the slide bar drives the magnet away from the Hall element. After receiving the signal, the control panel controls the first servo motor and the second servo motor to slow down. At this time, the feed speed of the tool and the distribution shaft slows down, the tool speed slows down, and the generated debris decreases. However, after the stopper moves, a part of the second pipeline will be opened, and the flow rate of the cleaning liquid entering the sealed tank will increase, thereby ensuring that the impact force of the through hole will not gradually decrease with the increase of the hole depth, and can ensure smooth discharge of debris; 2. The present invention is provided with an adjusting mechanism. When chip removal is stuck, the outflow speed of the cleaning liquid in the through hole slows down. At this time, the cleaning liquid will gather in the sealed tank, the pressure in the sealed tank will increase, squeezing the piston. The piston will completely compress the spring at this time. The piston drives the magnet away from the Hall element by a certain distance through the sliding rod. At this time, the control panel controls the first servo motor and the second servo motor to stop rotating, the tool and the distribution shaft no longer move relative to each other, and the tool no longer rotates, so as to prevent the tool from overloading and to prevent the debris from damaging the hole processed by the distribution shaft. At the same time, the piston drives the block to move. At this time, the second pipeline is fully opened, and the flow rate of the cleaning liquid in the sealed tank increases rapidly, and the pressure increases, so that the impact force of the cleaning liquid sprayed out of the through hole becomes larger, so that the stuck debris can be quickly discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is another perspective schematic diagram of the present invention; Figure 3 for Figure 2 Schematic diagram of removing the filter; Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 for Figure 3 A cross-sectional view of Figure 6 for Figure 3 Schematic diagram of half section of the middle sealed tank.

[0018] In the figure: 1, support frame; 2, first servo motor; 3, distribution shaft; 4, tool; 5, sealing tank; 6, second servo motor; 7, first slider; 8, control panel; 9, second slider; 10, filter; 11, bidirectional screw; 12, first clamping assembly; 1201, third slider; 13, round rod; 14, second clamping assembly; 15, water tank; 16, water pump; 17, slide rod; 18, magnet; 19, Hall element; 20, support rod; 21, first pipeline; 22, second pipeline; 23, through hole; 24, spring; 25, piston; 26, opening; 27, stopper. DETAILED DESCRIPTION

[0019] See also Figures 1 to 6 The present invention provides a technical solution: a distribution shaft deep hole processing device, including a support frame 1, a feed assembly located on the support frame 1, and a first clamping assembly 12 (existing technology) located above the feed assembly for clamping the distribution shaft 3 and a second clamping assembly 14 (existing technology) for clamping the tool 4, wherein a rotating assembly is installed on one side of the second clamping assembly 14, and further comprising: The flushing mechanism includes a sealing tank 5 sleeved on the outer wall of the tool 4, the outer wall of the sealing tank 5 is symmetrically connected with a first pipe 21 and a second pipe 22, and the first pipe 21 and the second pipe 22 are connected to each other, a piston 25 is slidably installed on the inner wall of the sealing tank 5, and a stopper 27 for closing and opening the second pipe 22 is symmetrically installed on the outer wall of the piston 25; the cleaning liquid in the first pipe 21 enters the hole through the sealing tank 5 and the tool 4, and as the depth of the hole increases, the piston 25 will gradually open the second pipe 22, so that the flow rate of the cleaning liquid becomes larger; The regulating mechanism comprises a slide bar 17 symmetrically mounted on the piston 25, a magnet 18 is mounted on one side of the slide bar 17 penetrating the sealing tank 5, a Hall element 19 is abutted on the side of the magnet 18 away from the slide bar 17, and the Hall element 19 is electrically connected to the feed assembly and the rotating assembly respectively; when the chip removal is not smooth, the cleaning fluid in the sealing tank 5 will squeeze the piston 25, the piston 25 drives the stopper 27 to move, the second pipeline 22 is fully opened, and at the same time, the piston 25 drives the magnet 18 away from the Hall element 19 through the slide bar 17, and at this time, the feed assembly and the rotating assembly adjust the feed speed and rotation speed of the tool 4; Further, such as Figure 1 As shown, the feeding assembly includes a first servo motor 2, which is fixedly mounted on the outer wall of the support frame 1, and the output shaft of the first servo motor 2 passes through the support frame 1 and is equipped with a bidirectional screw rod 11; The first servo motor 2 rotates, driving the bidirectional screw rod 11 to rotate; Further, such as Figure 3As shown, a third slider 1201 is installed on the lower end surface of the first clamping assembly 12, and the third slider 1201 is threadedly connected to the bidirectional screw rod 11. A round rod 13 is slidably installed on the side of the third slider 1201 away from the bidirectional screw rod 11, and both ends of the round rod 13 are installed on the support frame 1; When the bidirectional screw rod 11 rotates, it drives the third slider 1201 to move on the round rod 13, and the third slider 1201 drives the first clamping assembly 12 to move; Further, such as Figure 3 As shown, the rotating assembly includes a first slider 7, the first slider 7 is threadedly connected to the bidirectional screw 11, the first slider 7 is slidably connected to the round rod 13, the outer wall of the first slider 7 is installed with a second servo motor 6, and the output shaft of the second servo motor 6 is fixedly connected to the second clamping assembly 14; When the bidirectional screw rod 11 rotates, it drives the first slider 7 to move on the round rod 13, the first slider 7 drives the second servo motor 6 to move, and the second servo motor 6 drives the second clamping assembly 14 to move; Further, such as Figure 3 As shown, a water tank 15 is provided on the upper end surface of the support frame 1, a filter screen 10 is installed on the inner wall of the water tank 15, and a water pump 16 is installed on the upper end surface of the water tank 15; The filter 10 filters the cleaning liquid, and the water pump 16 extracts the cleaning liquid in the water tank 15; Further, such as Figure 2 and Figure 3 As shown, the lower end surface of the first pipe 21 passes through the filter screen 10 and is connected to the water pump 16; The water pump 16 pumps the cleaning liquid to the first pipe 21; Further, such as Figure 5 As shown, a through hole 23 is opened at the center of the tool 4, an opening 26 is opened at the outer wall of the tool 4 corresponding to the sealing tank 5, and the opening 26 is connected to the through hole 23; The cleaning liquid in the sealed tank 5 is discharged from the through hole 23 through the opening 26 to impact the debris; Further, such as Figure 5 and Figure 6 As shown, a spring 24 is installed on the inner wall of the sealing tank 5, and the spring 24 is fixedly connected to the piston 25; When the piston 25 moves, it squeezes the spring 24, and when the spring 24 stretches, it drives the piston 25 to reset; Further, such as Figure 1 and Figure 2 As shown, the lower end surface of the sealing tank 5 is installed with a second slider 9, the second slider 9 is threadedly connected with the bidirectional screw 11, the second slider 9 is slidably connected with the round rod 13, and the upper end surface of the second slider 9 is symmetrically installed with a support rod 20, and the support rod 20 is fixedly connected with the Hall element 19; When the bidirectional screw rod 11 rotates, it drives the second slider 9 to move on the round rod 13, and the second slider 9 drives the sealing tank 5 and the Hall element 19 to move; Further, such as Figure 1 As shown, a control panel 8 is installed on the outer wall of the support frame 1, and the control panel 8 is electrically connected to the Hall element 19; The control panel 8 receives the signal of the Hall element 19 and adjusts the rotation speed of the first servo motor 2 and the second servo motor 6 .

[0020] Working principle: Step 1: First, use the first clamping assembly 12 to clamp the distribution shaft 3, then pass the tool 4 through the sealing tank 5 and install it on the second clamping assembly 14, then control the first servo motor 2 and the second servo motor 6 to rotate through the control panel 8, the first servo motor 2 drives the bidirectional screw 11 to rotate, because the third slider 1201, the second slider 9 and the first slider 7 and the bidirectional screw 11 are threadedly connected, at this time, the third slider 1201 drives the distribution shaft 3 to move toward the side of the tool 4, the second slider 9 and the first slider 7 respectively drive the sealing tank 5 and the tool 4 to move toward the side of the distribution shaft 3, and at the same time, the second servo motor 6 drives the tool 4 to rotate at high speed through the second clamping assembly 14, at this time, the tool 4 processes the distribution shaft 3, the water pump 16 works, and the cleaning fluid enters the sealing tank 5 through the first pipe 21, and then passes through the opening 26 on the tool 4 and is discharged from the through hole 23, and the debris will be sprayed out from between the tool 4 and the inner wall of the hole; Step 2: As the depth of the hole increases, when the resistance to the cleaning liquid spraying becomes larger, the cleaning liquid will be retained in the sealing tank 5 and squeeze the piston 25. The piston 25 drives the slide bar 17 and the stopper 27 to move toward the distribution shaft 3, and the piston 25 squeezes the spring 24. At this time, the slide bar 17 drives the magnet 18 away from the Hall element 19. After receiving the signal, the control panel 8 controls the first servo motor 2 and the second servo motor 6 to slow down. At this time, the feed speed of the tool 4 and the distribution shaft 3 slows down, the speed of the tool 4 slows down, and the generated debris decreases. However, after the stopper 27 moves, a part of the second pipeline 22 will be opened, and the flow rate of the cleaning liquid entering the sealing tank 5 will increase, thereby ensuring that the impact force of the through hole 23 will not gradually decrease with the increase of the hole depth, and can ensure smooth discharge of debris; Step 3: When chip removal jam occurs, the outflow speed of the cleaning liquid in the through hole 23 slows down. At this time, the cleaning liquid will gather in the sealed tank 5, and the pressure in the sealed tank 5 will increase, squeezing the piston 25. The piston 25 will completely compress the spring 24 at this time. The piston 25 drives the magnet 18 to move away from the Hall element 19 by a certain distance through the slide rod 17. At this time, the control panel 8 controls the first servo motor 2 and the second servo motor 6 to stop rotating, and the tool 4 and the distribution shaft 3 no longer move relative to each other. At the same time, the tool 4 no longer rotates to prevent the tool 4 from overloading and to prevent the debris from damaging the hole processed by the distribution shaft 3. At the same time, the piston 25 drives the block 27 to move. At this time, the second pipeline 22 is fully opened, and the flow rate of the cleaning liquid in the sealed tank 5 increases rapidly, and the pressure increases, so that the impact force of the cleaning liquid sprayed out of the through hole 23 becomes larger, which can quickly discharge the stuck debris. Step 4: After the processing is completed, the first servo motor 2 is controlled to rotate in the opposite direction, the second servo motor 6 is controlled to stop rotating, and the water pump 16 is controlled to stop working. At this time, the spring 24 is extended, driving the piston 25 to move to the side of the first pipe 21, and the piston 25 drives the block 27 and the slide bar 17 to move. The block 27 closes the second pipe 22, and the slide bar 17 drives the magnet 18 to approach the Hall element 19. The first servo motor 2 rotates at normal speed to complete the separation of the tool 4 and the distribution shaft 3.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distribution shaft deep hole processing device, comprising a support frame (1), a feed assembly located on the support frame (1), and a first clamping assembly (12) located above the feed assembly for clamping the distribution shaft (3) and a second clamping assembly (14) for clamping a tool (4), wherein a rotating assembly is installed on one side of the second clamping assembly (14), characterized in that: Also includes: The flushing mechanism comprises a sealing tank (5) sleeved on the outer wall of a tool (4); the outer wall of the sealing tank (5) is symmetrically connected with a first pipe (21) and a second pipe (22), and the first pipe (21) and the second pipe (22) are connected with each other; a piston (25) is slidably mounted on the inner wall of the sealing tank (5); a stopper (27) for closing and opening the second pipe (22) is symmetrically mounted on the outer wall of the piston (25); the cleaning liquid in the first pipe (21) enters the hole through the sealing tank (5) and the tool (4); as the depth of the hole increases, the piston (25) gradually opens the second pipe (22), thereby increasing the flow rate of the cleaning liquid; The regulating mechanism comprises a slide bar (17) symmetrically mounted on a piston (25), one side of the slide bar (17) passing through a sealing tank (5) and being mounted with a magnet (18), the side of the magnet (18) away from the slide bar (17) being in contact with a Hall element (19), the Hall element (19) being electrically connected to a feed assembly and a rotating assembly respectively; when chip removal is not smooth, the cleaning fluid in the sealing tank (5) will squeeze the piston (25), the piston (25) will drive the stopper (27) to move, the second pipeline (22) will be fully opened, and at the same time, the piston (25) will drive the magnet (18) away from the Hall element (19) through the slide bar (17), at which time the feed assembly and the rotating assembly will regulate the feed speed and the rotation speed of the tool (4).

2. A distribution shaft deep hole processing device according to claim 1, characterized in that: The feeding assembly comprises a first servo motor (2), the first servo motor (2) being fixedly mounted on the outer wall of the support frame (1), the output shaft of the first servo motor (2) passing through the support frame (1) being equipped with a bidirectional screw rod (11).

3. A distribution shaft deep hole processing device according to claim 2, characterized in that: A third sliding block (1201) is mounted on the lower end surface of the first clamping assembly (12), the third sliding block (1201) being threadedly connected to the bidirectional screw rod (11), a round rod (13) being slidably mounted on the side of the third sliding block (1201) away from the bidirectional screw rod (11), and both ends of the round rod (13) being mounted on the support frame (1).

4. A distribution shaft deep hole processing device according to claim 3, characterized in that: The rotating assembly comprises a first slider (7), the first slider (7) being threadedly connected to a bidirectional screw rod (11), the first slider (7) being slidably connected to a round rod (13), a second servo motor (6) being mounted on an outer wall of the first slider (7), and an output shaft of the second servo motor (6) being fixedly connected to a second clamping assembly (14).

5. The distribution shaft deep hole processing device according to claim 1, characterized in that: The upper end surface of the support frame (1) is provided with a water tank (15), the inner wall of the water tank (15) is provided with a filter screen (10), and the upper end surface of the water tank (15) is provided with a water pump (16).

6. A distribution shaft deep hole processing device according to claim 5, characterized in that: The lower end surface of the first pipe (21) passes through the filter screen (10) and is in communication with the water pump (16).

7. The distribution shaft deep hole processing device according to claim 1, characterized in that: A through hole (23) is provided at the center of the cutter (4), an opening (26) is provided on the outer wall of the cutter (4) corresponding to the sealing can (5), and the opening (26) is communicated with the through hole (23).

8. The distribution shaft deep hole processing device according to claim 1, characterized in that: A spring (24) is installed on the inner wall of the sealing tank (5), and the spring (24) is fixedly connected to the piston (25).

9. A distribution shaft deep hole processing device according to claim 4, characterized in that: A second slider (9) is mounted on the lower end surface of the sealing tank (5), the second slider (9) is threadedly connected to the bidirectional screw rod (11), the second slider (9) is slidably connected to the round rod (13), and a support rod (20) is symmetrically mounted on the upper end surface of the second slider (9), the support rod (20) is fixedly connected to the Hall element (19).

10. The distribution shaft deep hole processing device according to claim 1, characterized in that: A control panel (8) is mounted on the outer wall of the support frame (1), and the control panel (8) is electrically connected to the Hall element (19).

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