Helical groove bevel cutting mechanism and processing method

Abstract

The present application relates to helical slot processing technical field, disclose a kind of helical slot bevel cutting mechanism and processing method, including linear module and two processing tool bits, the linear module and two processing tool bits are all installed on machine tool, the moving seat of the linear module is fixedly connected with support plate, the outside of the support plate is fixedly connected with two mounting brackets, the outside of the mounting bracket is provided with rotating mechanism and chip removal mechanism, the rotating mechanism includes motor, the motor is installed on the outside of mounting bracket, the output of the motor is fixedly connected with mounting sleeve, the inside of the mounting sleeve is slidably connected with sliding rod. By two processing tool bits simultaneously to the both sides of part helical slot processing, cooperate with the rotation of part and the position of overall structure to move, realize the accurate control of cutting path, compared with the traditional single tool rotation angle cutting, can effectively improve processing efficiency, and ensure helical slot cutting seam precision is more stable, improve processing quality.

Description

Technical Field

[0001] This invention relates to the field of spiral groove processing technology, and in particular to a spiral groove oblique cutting mechanism and processing method. Background Technology

[0002] In the field of machining, spiral groove machining is a crucial and indispensable process with extremely wide applications, covering the manufacturing of various shaft and screw parts. These parts with spiral grooves play important roles in mechanical equipment, performing functions such as transmission and connection. The machining quality of the spiral grooves directly affects the performance and service life of the parts and even the entire equipment. Whether it's the crankshaft in an automobile engine, the transmission screw in industrial machinery, or the miniature shaft parts in precision instruments, the precise machining of spiral grooves is a vital step in ensuring product reliability and stability.

[0003] In existing technologies, a single-blade assembly is commonly used for cutting spiral grooves. This method involves controlling the single blade assembly to rotate around a cylindrical workpiece while simultaneously advancing the workpiece, achieving the spiral groove machining through their coordinated operation. This machining mode relies on precise control of the blade assembly's rotation angle and feed rate. During machining, these two motion parameters of the blade assembly need to be adjusted in real time to ensure that the cutting path meets the design requirements.

[0004] However, this single-blade assembly machining method has revealed many problems in practical applications. For example, when machining high-precision screw parts, the simultaneous control of the blade assembly's rotation and feed during machining makes it difficult for operators to precisely plan the cutting path. Even slight deviations in control can lead to unstable cutting accuracy in the helical groove, resulting in inconsistent groove widths and pitch errors, making it difficult to achieve ideal machining results and affecting the assembly and performance of the parts. Furthermore, a single blade assembly can only machine one helical groove at a time, resulting in low machining efficiency; moreover, the debris generated during machining easily accumulates in the machining area, further interfering with the normal cutting of the blade, exacerbating machining errors, increasing the scrap rate, and failing to meet the demands of modern manufacturing for high-precision and high-efficiency machining. Therefore, this invention provides a helical groove oblique cutting mechanism and machining method to address the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a spiral groove oblique cutting mechanism and processing method, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A spiral groove oblique cutting mechanism and processing method are disclosed, comprising a linear module and two processing cutters. The linear module and the two processing cutters are both mounted on a machine tool. A support plate is fixedly connected to the movable seat of the linear module. Two mounting brackets are fixedly connected to the outer side of the support plate. A rotating mechanism and a chip removal mechanism are provided on the outer side of the mounting brackets.

[0008] Preferably, the rotating mechanism includes a motor, which is mounted on the outside of the mounting frame. The output end of the motor is fixedly connected to a mounting sleeve. A sliding rod is slidably connected to the inside of the mounting sleeve. A positioning plate is fixedly connected to one end of the sliding rod. Multiple anti-slip blocks are provided on one side of the positioning plate. A cylindrical gear is fixedly connected to the outside of the mounting sleeve.

[0009] Preferably, a limiting groove is formed on the outer side of the mounting sleeve, a limiting block is fixedly connected to the outer side of the sliding rod, and the outer side of the limiting block is slidably connected to the inner side of the limiting groove.

[0010] Preferably, an electric actuator is installed at the top of the mounting bracket, and a ball bearing is provided at the output end of the electric actuator. An annular groove is provided on the other side of the positioning plate, and the outer side of the ball bearing contacts the inner side of the annular groove.

[0011] Preferably, the chip removal mechanism includes an L-shaped base, one end of which is fixedly connected to the bottom end of the mounting frame, an air cylinder is fixedly connected to the outside of the L-shaped base, an air inlet is provided on the outside of the air cylinder, and an air outlet is fixedly connected to one end of the air cylinder.

[0012] Preferably, a nozzle is fixedly connected to one end of the air outlet pipe, and a one-way valve is provided inside both the air inlet and the air outlet pipe.

[0013] Preferably, a transmission rod is rotatably connected inside the L-shaped seat, and a cylindrical gear one is fixedly connected to the outside of the transmission rod. The cylindrical gear one meshes with a cylindrical gear two, and a disc is fixedly connected to one end of the transmission rod.

[0014] Preferably, a lever is fixedly connected to the outer side of the disc, a fixed sleeve is fixedly connected to the other end of the air cylinder, a T-shaped frame is slidably connected to the inner side of the fixed sleeve, and the outer side of the lever is slidably connected to the inner side of the T-shaped frame.

[0015] Preferably, one end of the T-shaped frame penetrates the inner wall of the air cylinder and is fixedly connected to a piston, and the outer side of the piston is slidably connected to the inner wall of the air cylinder.

[0016] A processing method for a spiral groove oblique cutting mechanism, applied to the spiral groove oblique cutting mechanism described above, includes the following steps:

[0017] Step 1: Place the part to be processed in the middle position between the two rotating mechanisms;

[0018] Step 2: Activate the two rotating mechanisms to clamp the part and rotate it;

[0019] Step 3: Start the two machining heads to perform rough machining on the part, and at the same time use the chip removal mechanism to remove the chips generated during machining;

[0020] Step 4: Use two machining heads to further refine the rough-machined parts to obtain the finished product.

[0021] In summary, the present invention has at least one of the following beneficial technical effects:

[0022] 1. The mechanism of this invention uses two processing heads to simultaneously process spiral grooves on both sides of the part. By coordinating the rotation of the part with the positional shift of the overall structure, it achieves precise control of the cutting path. Compared with traditional single-tool rotation angle cutting, it can effectively improve processing efficiency and ensure more stable spiral groove cutting accuracy, thereby improving processing quality.

[0023] 2. The mechanism of this invention utilizes the meshing transmission between transmission components during the cutting process to drive the piston inside the air cylinder to reciprocate, thereby achieving air intake and blowing operations. The generated airflow is blown out through a nozzle with freely adjustable position, promptly blowing away the cutting debris, preventing debris from affecting the processing effect, ensuring the smooth progress of the processing, and reducing processing errors caused by debris interference. Attached Figure Description

[0024] Figure 1 This is a front perspective view of the present invention;

[0025] Figure 2 This is a rear perspective view of the present invention;

[0026] Figure 3 This is a schematic diagram of the rotating mechanism of the present invention;

[0027] Figure 4 This is a schematic diagram of the chip removal mechanism of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a schematic diagram of the internal structure of the air cylinder of the present invention;

[0030] Figure 7 This is a top view of the present invention;

[0031] Figure 8 This is a front view of the present invention;

[0032] Figure 9 This is a side view of the present invention.

[0033] The components include: 1. Linear module; 2. Support plate; 3. Mounting bracket; 4. Rotating mechanism; 401. Motor; 402. Mounting sleeve; 403. Limiting groove; 404. Sliding rod; 405. Limiting block; 406. Positioning plate; 407. Anti-slip block; 408. Electric push rod; 409. Ball bearing; 410. Annular groove; 5. Chip removal mechanism; 501. L-shaped seat; 502. Air cylinder; 503. Air inlet; 504. Air outlet pipe; 505. Nozzle; 506. Transmission rod; 507. Cylindrical gear one; 508. Cylindrical gear two; 509. Disc; 510. Lever; 511. Fixing sleeve; 512. T-shaped frame; 513. Piston; 6. Machining cutter head. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 The present invention will be further described in detail below.

[0035] This invention provides a spiral groove oblique cutting mechanism, including a linear module 1 and two processing cutters 6, both mounted on a machine tool. The linear module 1 can drive the overall structure to move in a certain direction, thereby adjusting its relative position with the part to be processed. During operation, the linear module 1 allows the overall structure and the part to shift positions, and while keeping the positions of the two processing cutters 6 unchanged, the spiral groove is processed in conjunction with the rotation of the part.

[0036] A support plate 2 is fixedly connected to the movable base of the linear module 1, and the support plate 2 serves to support other components. Two mounting brackets 3 are fixedly connected to the outer side of the support plate 2, and the mounting brackets 3 are used to install components such as the rotating mechanism 4 and the chip removal mechanism 5.

[0037] The mounting bracket 3 is provided with a rotating mechanism 4 and a chip removal mechanism 5 on its outer side. The rotating mechanism 4 includes a motor 401, which is mounted on the outer side of the mounting bracket 3. The motor 401 serves as a power source, and starting the motor 401 can drive the subsequent components to rotate, thereby causing the parts to rotate.

[0038] A mounting sleeve 402 is fixedly connected to the output end of motor 401. When motor 401 operates, it drives mounting sleeve 402 to rotate. A sliding rod 404 is slidably connected to the inner side of mounting sleeve 402. When mounting sleeve 402 rotates, sliding rod 404 can slide inside and rotate accordingly. Sliding rod 404 can transmit the rotation of mounting sleeve 402 to positioning disk 406, driving the part to rotate. One end of sliding rod 404 is fixedly connected to positioning disk 406. Positioning disk 406 is used to position and clamp the part to be processed. The part to be processed is placed between the positioning disks 406 of the two rotating mechanisms 4, and the clamping of the part is achieved through subsequent operations.

[0039] Multiple anti-slip blocks 407 are provided on one side of the positioning plate 406. The anti-slip blocks 407 provide an anti-slip effect when the part is clamped, preventing the part from slipping during processing. A cylindrical gear 508 is fixedly connected to the outer side of the mounting sleeve 402. When the mounting sleeve 402 rotates, it drives the cylindrical gear 508 to rotate synchronously. A limit groove 403 is formed on the outer side of the mounting sleeve 402. A limit block 405 is fixedly connected to the outer side of the sliding rod 404. The outer side of the limit block 405 is slidably connected to the inner side of the limit groove 403. This limiting structure can ensure the stability of the sliding rod 404 when sliding inside the mounting sleeve 402, preventing it from disengaging. An electric actuator 408 is mounted on the top of the mounting bracket 3. A ball bearing 409 is provided at the output end of the electric actuator 408. An annular groove 410 is provided on the other side of the positioning plate 406. The outer side of the ball bearing 409 contacts the inner side of the annular groove 410. When the electric actuator 408 is activated, it pushes the ball bearing 409, which in turn pushes the positioning plate 406 to move, so that the two positioning plates 406 clamp the part.

[0040] The chip removal mechanism 5 includes an L-shaped base 501, one end of which is fixedly connected to the bottom of the mounting bracket 3, serving to support and fix other chip removal components. An air cylinder 502 is fixedly connected to the outside of the L-shaped base 501, which is a key component for generating airflow for chip removal.

[0041] An air inlet 503 is provided on the outside of the air cylinder 502. An air outlet pipe 504 is fixedly connected to one end of the air cylinder 502, and a nozzle 505 is fixedly connected to one end of the air outlet pipe 504. Both the air inlet 503 and the air outlet pipe 504 are equipped with one-way valves to ensure that the airflow can only flow in one direction. During operation, the airflow generated in the air cylinder 502 is blown out from the nozzle 505 through the air outlet pipe 504 to blow away the debris generated when cutting the spiral groove. The air outlet pipe 504 is a gooseneck tube to facilitate free adjustment of the position of the nozzle 505.

[0042] A transmission rod 506 is rotatably connected inside the L-shaped seat 501, and the transmission rod 506 can rotate within the L-shaped seat 501. A cylindrical gear 507 is fixedly connected to the outside of the transmission rod 506, and the cylindrical gear 507 meshes with a second cylindrical gear 508. When the mounting sleeve 402 rotates, the second cylindrical gear 508 drives the cylindrical gear 507 to rotate. A disc 509 is fixedly connected to one end of the transmission rod 506, and the disc 509 rotates as the transmission rod 506 rotates.

[0043] A lever 510 is fixedly connected to the outer side of the disc 509, and a fixed sleeve 511 is fixedly connected to the other end of the air cylinder 502. A T-shaped frame 512 is slidably connected to the inner side of the fixed sleeve 511. The outer side of the lever 510 is slidably connected to the inner side of the T-shaped frame 512. One end of the T-shaped frame 512 passes through the inner wall of the air cylinder 502 and is fixedly connected to a piston 513. The outer side of the piston 513 is slidably connected to the inner wall of the air cylinder 502. The rotation of the cylindrical gear 507 drives the disc 509 to rotate multiple times, thereby causing the lever 510 to move the T-shaped frame 512 to drive the piston 513 to reciprocate within the air cylinder 502, thus realizing the inhalation and exhalation process.

[0044] Specifically, after the overall machining mechanism is installed on the machine tool, the operator first precisely places the part to be machined between the positioning discs 406 of the two rotating mechanisms 4, with the part in the starting position of machining. Then, the electric actuator 408 is activated, which pushes the ball bearing 409, thereby driving the positioning discs 406 to move smoothly until the two positioning discs 406 tightly clamp the part. The anti-slip block 407 on one side of the positioning disc 406 is tightly attached to the surface of the part to prevent the part from sliding or shifting during machining, ensuring that the part is fixed and stable.

[0045] At this point, the two machining heads 6 located on both sides of the outer surface of the part are ready, and can simultaneously machine the two spiral grooves on the part, improving machining efficiency. Then, the motor 401 is started, and the motor 401 drives the mounting sleeve 402 to rotate rapidly. The mounting sleeve 402 drives the positioning disk 406 to rotate synchronously through the sliding rod 404, thereby causing the part to start rotating.

[0046] While the part rotates, the linear module 1 functions, causing the overall structure and part to shift positions. Through the precise movement of the linear module 1, in conjunction with the rotation of the part, two helical grooves meeting the requirements can be directly machined on the part while keeping the positions of the two machining heads 6 unchanged. This method of controlling the rotation of the part or moving the machining heads 6 enables precise control of the cutting path. Compared with traditional single-tool rotation angle cutting, the accuracy of the helical groove cutting is more stable, and the processing quality is significantly improved.

[0047] Furthermore, when the mounting sleeve 402 rotates, the cylindrical gear 508 fixedly connected to it rotates accordingly. The cylindrical gear 508 drives the cylindrical gear 507 meshing with it to rotate. Since the radius of the cylindrical gear 507 is much smaller than that of the cylindrical gear 508, the disc 509 fixed to one end of the transmission rod 506 rotates rapidly multiple times. The lever 510 on the outside of the disc 509 continuously actuates the T-shaped frame 512, causing the piston 513 to reciprocate within the air cylinder 502. This process causes air to be continuously drawn in at the air inlet 503. The air is then transported through the air outlet 504 to the nozzle 505 and blown outwards. The air outlet 504 is a gooseneck tube, allowing the operator to freely adjust the position and angle of the nozzle 505 according to actual needs. During the cutting of the spiral groove, the nozzle 505 continuously blows away the generated debris, preventing debris accumulation from affecting the processing effect and ensuring the smooth progress of the processing.

[0048] Please see the appendix Figure 1 - Appendix Figure 9 This invention provides a processing method for a spiral groove oblique cutting mechanism, comprising the following steps: Step 1: placing the part to be processed in the middle position of two rotating mechanisms 4; Step 2: activating the two rotating mechanisms 4 to clamp the part and rotate it; Step 3: activating two processing cutters 6 to perform rough machining on the part while using a chip removal mechanism 5 to remove the chips generated during processing; Step 4: continuing to perform fine machining on the rough-machined part using the two processing cutters 6 to obtain the finished product.

[0049] Working principle: The overall processing mechanism is installed on the machine tool. First, the part to be processed can be placed between the two rotating mechanisms 4. Then, the electric push rod 408 is started to push the positioning plate 406 to move, so that the two positioning plates 406 clamp the part. The anti-slip block 407 plays an anti-slip role. The two processing heads 6 are located on the outer sides of the part, and two spiral grooves are processed at the same time. At this time, the motor 401 can be started to drive the mounting sleeve 402 to rotate. Then, the sliding rod 404 drives the positioning plate 406 to rotate, which allows the part to rotate. The linear module 1 can move the overall structure and the part to different positions. Therefore, two spiral grooves can be processed directly while keeping the positions of the two processing heads 6 unchanged. By controlling the rotation of the part or moving the processing heads 6, the cutting path can be precisely controlled. The spiral groove cutting accuracy is more stable than that of traditional single-tool rotation angle cutting.

[0050] In addition, when the mounting sleeve 402 rotates, it will cause the second cylindrical gear 508 to drive the first cylindrical gear 507 to rotate. Since the radius of the first cylindrical gear 507 is much smaller than that of the second cylindrical gear 508, the disc 509 will rotate multiple times, which will cause the lever 510 to move the T-shaped frame 512 to drive the piston 513 to move back and forth. This allows air to be drawn in at the air inlet 503 and delivered to the nozzle 505 through the air outlet pipe 504 for blowing. The air outlet pipe 504 is a gooseneck pipe, which allows for free adjustment of the position of the nozzle 505. It can blow away the debris when cutting the spiral groove to avoid affecting the processing effect.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spiral groove oblique cutting mechanism, characterized in that, The system includes a linear module (1) and two machining heads (6), both of which are mounted on a machine tool. A support plate (2) is fixedly connected to the movable seat of the linear module (1). Two mounting brackets (3) are fixedly connected to the outer side of the support plate (2). A rotating mechanism (4) and a chip removal mechanism (5) are provided on the outer side of the mounting brackets (3). The rotating mechanism (4) includes a motor (401), which is mounted on the outer side of the mounting bracket (3). A mounting sleeve (402) is fixedly connected to the output end of the motor (401). A sliding rod (404) is slidably connected to the inner side of the mounting sleeve (402). A positioning plate is fixedly connected to one end of the sliding rod (404). 406), a plurality of anti-slip blocks (407) are provided on one side of the positioning disk (406), and a cylindrical gear (508) is fixedly connected to the outer side of the mounting sleeve (402); a limiting groove (403) is opened on the outer side of the mounting sleeve (402), a limiting block (405) is fixedly connected to the outer side of the sliding rod (404), and the outer side of the limiting block (405) is slidably connected to the inner side of the limiting groove (403); an electric push rod (408) is installed at the top of the mounting bracket (3), a ball (409) is provided at the output end of the electric push rod (408), and an annular groove (410) is opened on the other side of the positioning disk (406), and the outer side of the ball (409) is in contact with the inner side of the annular groove (410).

2. The spiral groove oblique cutting mechanism according to claim 1, characterized in that, The chip removal mechanism (5) includes an L-shaped seat (501), one end of which is fixedly connected to the bottom end of the mounting frame (3). An air cylinder (502) is fixedly connected to the outside of the L-shaped seat (501), and an air inlet (503) is opened on the outside of the air cylinder (502). An air outlet pipe (504) is fixedly connected to one end of the air cylinder (502).

3. The spiral groove oblique cutting mechanism according to claim 2, characterized in that, One end of the air outlet pipe (504) is fixedly connected to a nozzle (505), and both the air inlet (503) and the air outlet pipe (504) are equipped with one-way valves.

4. The spiral groove oblique cutting mechanism according to claim 3, characterized in that, The L-shaped seat (501) is rotatably connected to a transmission rod (506), and a cylindrical gear (507) is fixedly connected to the outside of the transmission rod (506). The cylindrical gear (507) meshes with the cylindrical gear (508), and a disc (509) is fixedly connected to one end of the transmission rod (506).

5. The spiral groove oblique cutting mechanism according to claim 4, characterized in that, A lever (510) is fixedly connected to the outer side of the disc (509), and a fixing sleeve (511) is fixedly connected to the other end of the air cylinder (502). A T-shaped frame (512) is slidably connected to the inner side of the fixing sleeve (511), and the outer side of the lever (510) is slidably connected to the inner side of the T-shaped frame (512).

6. The spiral groove oblique cutting mechanism according to claim 5, characterized in that, One end of the T-shaped frame (512) penetrates the inner wall of the air cylinder (502) and is fixedly connected to a piston (513). The outer side of the piston (513) is slidably connected to the inner wall of the air cylinder (502).

7. A processing method for a spiral groove oblique cutting mechanism, characterized in that, The spiral groove oblique cutting mechanism according to any one of claims 1-6 includes the following steps: Step 1: Place the part to be processed in the middle position of the two rotating mechanisms (4); Step 2: Start the two rotating mechanisms (4) to clamp the part and make it rotate; Step 3: Start the two machining heads (6) to rough machine the part while using the chip removal mechanism (5) to remove the chips generated during machining; Step 4: Continue to refine the rough-machined parts using two machining heads (6) to obtain the finished product.

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