A profile tooth removal device with dual-station saw blade teeth

Abstract

This invention discloses a profile tooth removal device with a dual-station saw blade, relating to the field of profile processing technology. It includes a frame, a profile positioning and feeding mechanism, a first tooth removal station, a second tooth removal station, and a CNC control unit. The profile positioning and feeding mechanism is fixedly installed in the middle of the frame and is used for axial positioning, clamping, and continuous feeding of the profile to be processed. The first and second tooth removal stations are both installed on the frame and are located on opposite sides of the feed path of the profile positioning and feeding mechanism. The first and second tooth removal stations are arranged at a 90-degree orthogonal angle in the horizontal plane. This dual-station profile tooth removal device uses circular saw blade cutting to replace traditional milling, and with the 90-degree orthogonal dual-station layout, the teeth in two vertical directions of the profile can be removed simultaneously in a single clamping operation.

Description

Technical Field

[0001] This invention relates to the field of profile processing technology, and in particular to a profile tooth removal device with dual-station saw blades. Background Technology

[0002] In industrial production, aluminum alloy profiles, steel profiles, and other irregularly shaped profiles are widely used in construction, automotive, rail transportation, and general machinery. After extrusion molding, these profiles often require the removal of their serrated surface structure to meet the dimensional requirements of subsequent processes such as assembly and welding. Currently, the industry commonly uses CNC milling for profile de-toothing, which removes the serrated structure of the profile layer by layer through the rotation of the milling cutter and multi-axis linkage.

[0003] However, in actual mass production, this processing method suffers from the following intractable technical defects: extremely low processing efficiency, failing to meet the demands of large-scale production. Milling is a layer-by-layer cutting process; for tooth structures with significant height, multiple reciprocating passes are required to complete removal. The tooth removal cycle time for a single profile is long, resulting in a significant capacity bottleneck in large-volume order production. There is an inherent contradiction between clamping efficiency and positioning accuracy. For tooth removal in two mutually perpendicular directions on the profile, existing milling equipment is mostly single-station, requiring secondary clamping and alignment of the profile. This not only significantly increases auxiliary clamping time but also easily introduces clamping and positioning errors, leading to poor processing consistency and low yield. High tool wear and high processing costs. During milling, the contact area between the milling cutter and the profile is large, resulting in strong cutting resistance, rapid tool wear, and frequent tool changes. Furthermore, the high cost of purchasing and regrinding dedicated milling cutters further increases the unit processing cost of the profile. Subsequent processing steps are cumbersome, leading to a long production process. Milled teeth are prone to producing a lot of burrs and tool marks, requiring additional manual labor or special equipment for deburring, which lengthens the production process and increases labor and equipment costs. Summary of the Invention

[0004] The purpose of this invention is to provide a profile tooth removal device with a dual-station saw blade, which replaces traditional milling with circular saw blade sawing. With a 90-degree orthogonal dual-station layout, the teeth of the profile can be removed simultaneously in two vertical directions in one clamping.

[0005] This invention provides a profile tooth removal device with a dual-station saw blade, comprising a frame, a profile positioning and feeding mechanism, a first tooth removal station, a second tooth removal station, and a CNC control unit. The profile positioning and feeding mechanism is fixedly installed in the middle of the frame and is used for axial positioning, clamping, and continuous feeding of the profile to be processed. The first tooth removal station and the second tooth removal station are both installed on the frame and are located on both sides of the feed path of the profile positioning and feeding mechanism. The first tooth removal station and the second tooth removal station are in the horizontal plane. Arranged at a 90-degree orthogonal angle; both the first and second de-toothing stations include a station base, a sawing feed assembly, a saw blade drive assembly, a circular saw blade, and a station clamping assembly; the station base is fixed on the frame, the sawing feed assembly is mounted on the station base, the saw blade drive assembly is mounted on the moving end of the sawing feed assembly, the circular saw blade is coaxially fixed to the power output end of the saw blade drive assembly, and the station clamping assembly is mounted on the moving end of the sawing feed assembly and located at the front end of the circular saw blade in the feed direction.

[0006] Preferably, the profile positioning and feeding mechanism includes a feed guide rail, a profile support assembly, a servo feed assembly, and a main clamping assembly. The feed guide rail is arranged horizontally along the length of the frame. The profile support assembly is slidably mounted on the feed guide rail. The servo feed assembly is connected to the profile support assembly via a transmission. The main clamping assembly is fixedly mounted on the profile support assembly.

[0007] Preferably, the feed direction of the sawing feed assembly of the first de-toothing station is perpendicular to the feed direction of the profile positioning feed mechanism, and the feed direction of the sawing feed assembly of the second de-toothing station is parallel to the feed direction of the profile positioning feed mechanism.

[0008] Preferably, the sawing feed assembly includes a servo motor, a ball screw pair, a linear guide rail, and a moving slider; the linear guide rail is fixed to the upper surface of the workstation base, the two ends of the ball screw pair are rotatably mounted on the workstation base through bearing seats, and the screw is arranged parallel to the linear guide rail; the output shaft of the servo motor is coaxially and fixedly connected to the ball screw pair through a coupling, the nut of the ball screw pair is fixedly connected to the moving slider, and the moving slider slides in engagement with the linear guide rail.

[0009] Preferably, the saw blade drive assembly includes a spindle box, a drive spindle, and a cutting drive motor; the spindle box is fixedly installed on the moving end of the sawing feed assembly, the drive spindle is rotatably installed in the spindle box through a high-precision bearing, the cutting drive motor is fixed on the top of the spindle box and is connected to the drive spindle through a synchronous belt transmission mechanism, and the circular saw blade is coaxially fixed to the end of the drive spindle facing the profile through a locking nut.

[0010] Preferably, the station clamping assembly includes a clamping cylinder, a clamping block, and an anti-slip buffer pad; the cylinder body of the clamping cylinder is vertically fixed to the moving end of the sawing feed assembly, the piston rod of the clamping cylinder is arranged downwards, the clamping block is fixedly installed at the end of the piston rod, the anti-slip buffer pad is bonded to the lower surface of the clamping block, and the clamping position of the clamping block and the sawing position of the circular saw blade are at the same cross-section of the profile to be processed.

[0011] Preferably, the CNC control unit is electrically connected to the profile positioning and feeding mechanism, the first de-toothing station, and the second de-toothing station, respectively.

[0012] Preferably, a protective cover is fixedly installed on the frame, and the protective cover is located outside the first tooth removal station and the second tooth removal station. The protective cover is provided with a transparent observation window.

[0013] Therefore, the present invention adopts the above-mentioned dual-station saw blade tooth removal device for profiles, which replaces the traditional milling process with circular saw blade sawing. With the 90-degree orthogonal dual-station layout, the teeth of the profile can be removed simultaneously in two vertical directions in one clamping.

[0014] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a profile tooth removal device with dual-station saw blades according to the present invention. Figure 2 This is a schematic diagram of the profile positioning and feeding mechanism of a profile tooth removal device with dual-station saw blades according to the present invention. Figure 3 This is a schematic diagram of the tooth removal station of a profile tooth removal device with a dual-station saw blade according to the present invention.

[0016] Figure Labels 1. Frame; 2. Profile positioning and feeding mechanism; 21. Feed guide rail; 22. Profile material support assembly; 23. Servo feed assembly; 24. Main clamping assembly; 3. First de-toothing station; 4. Second de-toothing station; 5. Station base; 6. Sawing feed assembly; 61. Servo motor; 62. Ball screw pair; 63. Linear guide rail; 64. Moving slider; 7. Saw blade drive assembly; 71. Spindle box; 72. Drive spindle; 73. Cutting drive motor; 8. Circular saw blade; 9. Station clamping assembly; 91. Clamping cylinder; 92. Clamping block; 10. CNC control unit; 11. Protective cover. Detailed Implementation

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0019] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Example 1 like Figures 1-3 As shown, this invention discloses a profile tooth removal device with a dual-station saw blade, comprising a frame 1, a profile positioning and feeding mechanism 2, a first tooth removal station 3, a second tooth removal station 4, and a CNC control unit 10. The frame 1 is an integrally welded box-shaped steel structure, which undergoes tempering treatment to eliminate internal stress, providing high rigidity and stability for the entire device. Its upper surface is a high-precision machining plane for mounting various functional modules. The profile positioning and feeding mechanism 2 is fixedly installed in the middle of the frame 1 and is used for axial positioning, clamping, and continuous feeding of the profile to be processed. The profile positioning and feeding mechanism 2 is fixedly installed in the middle of the frame 1 and arranged along the length of the device, serving as the reference and carrier for profile processing. The first tooth removal station 3 and the second tooth removal station 4 are both installed on the frame 1 and are located on both sides of the feed path of the profile positioning and feeding mechanism 2, forming a 90-degree orthogonal angle in the horizontal plane. Used to saw away the teeth in two mutually perpendicular directions on the profile to be processed.

[0021] Both the first de-toothing station 3 and the second de-toothing station 4 include a station base 5, a sawing feed assembly 6, a saw blade drive assembly 7, a circular saw blade 8, and a station clamping assembly 9. The station base 5 is fixed to the frame 1 by high-strength bolts and serves as the installation reference for the entire station. The sawing feed assembly 6 is mounted on the station base 5, the saw blade drive assembly 7 is mounted on the moving end of the sawing feed assembly 6, the circular saw blade 8 is coaxially fixed to the power output end of the saw blade drive assembly 7, and the station clamping assembly 9 is mounted on the moving end of the sawing feed assembly 6 and located at the front end of the circular saw blade 8 in the feed direction, used to clamp the profile to be processed during sawing. A linear guide rail 63 is fixed parallel to the station base 5, and the two ends of the ball screw pair 62 are rotatably mounted on the station base 5 through bearing seats and are parallel to the linear guide rail 63. The servo motor 61 drives the ball screw pair 62 to rotate through the coupling, which in turn drives the movable slider 64, which is fixed to the nut, to perform high-precision reciprocating motion along the linear guide rail 63, so as to realize the precise feeding and retraction of the circular saw blade 8.

[0022] The profile positioning and feeding mechanism 2 includes a feed guide rail 21, a profile support assembly 22, a servo feed assembly 23, and a main clamping assembly 24. The feed guide rail 21 is horizontally arranged along the length of the frame 1, providing guidance for the high-precision reciprocating motion of the profile support assembly 22. The profile support assembly 22 is slidably mounted on the feed guide rail 21 and is used to support and position the profile. The servo feed assembly 23 is drively connected to the profile support assembly 22 and is used to drive the profile support assembly 22 to perform reciprocating linear motion along the feed guide rail 21. The main clamping assembly 24 is fixedly mounted on the profile support assembly 22 and is used to clamp and fix the profile to be processed in the positioning groove of the profile support assembly 22.

[0023] The feed direction of the sawing feed assembly 6 of the first de-toothing station 3 is perpendicular to the feed direction of the profile positioning feed mechanism 2, and the feed direction of the sawing feed assembly 6 of the second de-toothing station 4 is parallel to the feed direction of the profile positioning feed mechanism 2, so that the sawing feed directions of the circular saw blades 8 of the first de-toothing station 3 and the second de-toothing station 4 form a 90-degree orthogonal layout in the horizontal plane.

[0024] The sawing feed assembly 6 includes a servo motor 61, a ball screw pair 62, a linear guide rail 63, and a moving slider 64. The linear guide rail 63 is fixed to the upper surface of the workstation base 5. The two ends of the ball screw pair 62 are rotatably mounted on the workstation base 5 through bearing seats, and the screw is arranged parallel to the linear guide rail 63. The output shaft of the servo motor 61 is coaxially and fixedly connected to the ball screw pair 62 through a coupling. The nut of the ball screw pair 62 is fixedly connected to the moving slider 64. The moving slider 64 slides with the linear guide rail 63 to form the moving end of the sawing feed assembly 6.

[0025] The saw blade drive assembly 7 includes a spindle box 71, a drive spindle 72, and a cutting drive motor 73. The spindle box 71 is fixedly installed at the moving end of the sawing feed assembly 6. The drive spindle 72 is rotatably mounted inside the spindle box 71 via high-precision bearings to ensure stability during high-speed rotation. The cutting drive motor 73 is fixed to the top of the spindle box 71 and is connected to the drive spindle 72 via a synchronous belt transmission mechanism, driving the circular saw blade 8 to rotate at high speed. The circular saw blade 8 is coaxially fixed to the end of the drive spindle 72 facing the profile by a locking nut. The circular saw blade 8 uses carbide teeth for efficient sawing of the toothed portion of the profile.

[0026] The station clamping assembly 9 includes a clamping cylinder 91, a clamping block 92, and an anti-slip buffer pad 93. The cylinder body of the clamping cylinder 91 is vertically fixed to the moving end of the sawing feed assembly 6. The piston rod of the clamping cylinder 91 is arranged downwards. The clamping block 92 is fixedly installed at the end of the piston rod. The anti-slip buffer pad 93 is bonded to the lower surface of the clamping block 92. The clamping position of the clamping block 91 and the sawing position of the circular saw blade 8 are at the same cross-section of the profile to be processed. The profile is clamped before sawing to effectively suppress vibration and ensure processing quality.

[0027] The CNC control unit 10 is electrically connected to the profile positioning and feeding mechanism 2, the first de-toothing station 3, and the second de-toothing station 4, respectively, and is used to control the feed accuracy of the profile positioning and feeding mechanism, the sawing feed speed of the two de-toothing stations, and the independent adjustment and linkage of cutting parameters.

[0028] A protective cover 11 is fixedly installed on the frame 1. The protective cover 11 covers the outside of the first tooth removal station 3 and the second tooth removal station 4. The protective cover 11 is provided with a transparent observation window.

[0029] Workflow: Clamping and positioning: The profile to be processed is placed in the positioning slot of the profile support assembly 22, and the main clamping assembly 24 clamps and fixes the profile. Feeding to position: The servo feed assembly 23 drives the profile support assembly 22 to move along the feed guide rail 21, sending the profile to be processed to the processing area of ​​the first tooth removal station 3 and the second tooth removal station 4. Station clamping: The station clamping assemblies 9 of the first tooth removal station 3 and the second tooth removal station 4 are activated, and the clamping cylinder 91 drives the clamping block 92 to clamp the profile section to be processed. Double saw blade sawing and tooth removal: The cutting drive motor 73 drives the circular saw blade 8 to rotate at high speed; the sawing feed assembly 6 drives the circular saw blade 8 to feed towards the profile, and the first tooth removal station 3 and the second tooth removal station 4 respectively saw and remove the teeth in two mutually perpendicular directions of the profile. After sawing is completed, the sawing feed assembly 6 drives the circular saw blade 8 back to its original position, and the station clamping assembly 9 is released. The profile positioning feed mechanism 2 sends the profile to the next processing position, repeating the sawing action until the entire profile is de-toothed. After processing is completed, the main clamping assembly 24 is released, and the profile can be removed.

[0030] Therefore, the present invention adopts the above-mentioned dual-station saw blade tooth removal device for profiles, which replaces the traditional milling process with circular saw blade sawing. With the 90-degree orthogonal dual-station layout, the teeth of the profile can be removed simultaneously in two vertical directions in one clamping.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A profile tooth removal device with a dual-station saw blade, characterized in that, The system includes a frame, a profile positioning and feeding mechanism, a first de-toothing station, a second de-toothing station, and a CNC control unit. The profile positioning and feeding mechanism is fixedly installed in the middle of the frame and is used for axial positioning, clamping, and continuous feeding of the profile to be processed. The first and second de-toothing stations are both installed on the frame and are located on both sides of the feed path of the profile positioning and feeding mechanism. The first and second de-toothing stations are arranged at a 90-degree orthogonal angle in the horizontal plane. Each of the first and second de-toothing stations includes a station base, a sawing feed assembly, a saw blade drive assembly, a circular saw blade, and a station clamping assembly. The station base is fixed on the frame, the sawing feed assembly is installed on the station base, the saw blade drive assembly is installed on the moving end of the sawing feed assembly, the circular saw blade is coaxially fixed to the power output end of the saw blade drive assembly, and the station clamping assembly is installed on the moving end of the sawing feed assembly and located at the front end of the circular saw blade in the feed direction.

2. The profile tooth removal device with a dual-station saw blade according to claim 1, characterized in that, The profile positioning and feeding mechanism includes a feed guide rail, a profile support assembly, a servo feed assembly, and a main clamping assembly. The feed guide rail is arranged horizontally along the length of the frame. The profile support assembly is slidably mounted on the feed guide rail. The servo feed assembly is connected to the profile support assembly via a transmission. The main clamping assembly is fixedly mounted on the profile support assembly.

3. The profile tooth removal device with a dual-station saw blade according to claim 1, characterized in that, The feed direction of the sawing feed assembly at the first de-toothing station is perpendicular to the feed direction of the profile positioning feed mechanism, while the feed direction of the sawing feed assembly at the second de-toothing station is parallel to the feed direction of the profile positioning feed mechanism.

4. The profile tooth removal device with dual-station saw blade teeth according to claim 1, characterized in that, The sawing feed assembly includes a servo motor, a ball screw pair, a linear guide, and a moving slider. The linear guide is fixed to the upper surface of the workstation base. The two ends of the ball screw pair are rotatably mounted on the workstation base through bearing seats, and the screw is arranged parallel to the linear guide. The output shaft of the servo motor is coaxially and fixedly connected to the ball screw pair through a coupling. The nut of the ball screw pair is fixedly connected to the moving slider, and the moving slider slides in conjunction with the linear guide.

5. The profile tooth removal device with a dual-station saw blade according to claim 1, characterized in that, The saw blade drive assembly includes a spindle box, a drive spindle, and a cutting drive motor. The spindle box is fixedly installed on the moving end of the sawing feed assembly. The drive spindle is rotatably installed inside the spindle box via a high-precision bearing. The cutting drive motor is fixed to the top of the spindle box and is connected to the drive spindle via a synchronous belt transmission mechanism. The circular saw blade is coaxially fixed to the end of the drive spindle facing the profile via a locking nut.

6. The profile tooth removal device with dual-station saw blade teeth according to claim 1, characterized in that, The station clamping assembly includes a clamping cylinder, a clamping block, and an anti-slip buffer pad. The cylinder body of the clamping cylinder is vertically fixed to the moving end of the sawing feed assembly. The piston rod of the clamping cylinder is arranged downwards. The clamping block is fixedly installed at the end of the piston rod. The anti-slip buffer pad is adhered to the lower surface of the clamping block. The clamping position of the clamping block and the sawing position of the circular saw blade are at the same cross-section of the profile to be processed.

7. The profile tooth removal device with a dual-station saw blade according to claim 1, characterized in that, The CNC control unit is electrically connected to the profile positioning and feeding mechanism, the first de-toothing station, and the second de-toothing station, respectively.

8. The profile tooth removal device with a dual-station saw blade according to claim 1, characterized in that, A protective cover is fixedly installed on the frame. The protective cover is located outside the first tooth removal station and the second tooth removal station. The protective cover is equipped with a transparent observation window.

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