Cutter head flatness detection device

Abstract

The utility model discloses a cutterhead planeness detection device, which relates to the technical field of planeness detection and comprises an operation table and a detection table, a displacement unit, a rotating unit and a truss are mounted on the operation table, a placement frame is mounted on the displacement unit, a lifting unit is mounted on the placement frame, and detection units are mounted on the lifting unit and the truss. The detection table is installed on the rotating unit, and the clamping unit is installed on the detection table. The device has the beneficial effects that the flatness after the detection table and the tool apron part of the cutterhead are installed is detected through acting force applied to the pressure sensor by the first movable part and the second movable part, the unevenness problem of the detection table can be found and processed in time, the accuracy of a detection reference is ensured, and after the cutterhead is installed, the flatness of the cutterhead is ensured. And then the flatness of the tool apron part of the cutter head is detected, the deflection influence in the installation process is eliminated, error sources are eliminated through double flatness detection, and the accuracy of the detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of flatness detection, in particular to a cutter head flatness detection device. Background Art

[0002] The working of a granulator mainly relies on a cutter head to cut materials to obtain granular materials. In order to ensure the uniformity of the cutting particle size, it is necessary to detect the flatness of the cutter head used for cutting before work. The cutter head mainly includes a tool holder and a cutting edge, and the cutting edge is installed on the tool holder.

[0003] After retrieval, a patent application with the Chinese patent publication number CN219640924U discloses a brake disc flatness detection device, which mainly realizes the purpose of detecting the flatness of the brake disc body by rotatably connecting a support frame with a support table so that only by rotating the support frame can the detection instrument be driven to rotate.

[0004] Comparing with the prior art in the related field, it can be known that when detecting the flatness of the cutter head, most of the existing methods directly place the cutter head on the detection table. After long-term use of the detection table, the surface may be worn, deformed, etc. However, before detection, it is not calibrated, and the cutter head is directly placed on it for detection. The unevenness of the detection table itself will be superimposed on the detection result of the cutter head flatness, and the skew of the tool holder will also mislead the detection of the cutting edge flatness, resulting in abnormal detection results. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cutter head flatness detection device to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] A cutter head flatness detection device includes an operation table and a detection table. A displacement unit, a rotation unit, and a truss are installed on the operation table. A placement rack is installed on the displacement unit, a lifting unit is installed on the placement rack, detection units are installed on both the lifting unit and the truss, the detection table is installed on the rotation unit, and a clamping unit is installed on the detection table. The detection table is located directly below the detection unit on the truss.

[0008] The detection unit includes an installation box, a hydraulic lifting mechanism, and a pressure sensor. The installation box is installed on the lifting unit. A first moving part is slidably installed at the lower end of the installation box. The hydraulic lifting mechanism is installed on the truss. An installation seat is installed at the telescopic end of the hydraulic lifting mechanism. Installation cavities are arranged in the installation seat in a row. A second moving part is slidably arranged at the lower end of the installation seat. Springs are sleeved on the part of the second moving part located in the installation cavity and the part of the first moving part located in the installation box. The pressure sensors are respectively installed on the inner upper surfaces of the installation box and the installation cavity.

[0009] Furthermore, balls are rotatably installed at the lower ends of the first movable member and the second movable member.

[0010] Furthermore, the clamping unit includes a first lead screw rotatably installed on the inspection table. A knob is installed at the end of the first lead screw. The first lead screw is a bidirectional lead screw with opposite thread directions at both ends. Clamping brackets are respectively threadedly connected to both ends of the first lead screw, and the clamping brackets are slidably connected to the inspection table.

[0011] Furthermore, the displacement unit includes two first motors respectively installed on both sides of the operation table, and two second lead screws respectively rotatably connected to the operation table. The second lead screws are connected to the output shafts of the first motors, and the second lead screws are threadedly connected to the placement rack.

[0012] Furthermore, the lifting unit includes a second motor and a third lead screw. The second motor is installed on the placement rack, and the third lead screw is rotatably installed on the placement rack. The third lead screw is connected to the output shaft of the second motor. A movable beam is threadedly connected to the third lead screw. The movable beam is slidably connected to the placement rack, and the end of the movable beam is fixedly connected to the installation box.

[0013] Furthermore, the rotation unit includes a third motor installed on the lower surface of the operation table. The output shaft of the third motor is rotatably connected to the operation table, and the output shaft of the third motor is connected to the inspection table.

[0014] Furthermore, a support seat is installed on the upper surface of the operation table. An auxiliary seat is slidably installed on the support seat, and the auxiliary seat is connected to the lower surface of the inspection table.

[0015] The beneficial effects compared with the prior art are as follows:

[0016] 1. By the acting force applied to the pressure sensor by the first movable member and the second movable member, the flatness of the inspection table and the tool holder part of the tool disc after installation is detected. The unevenness problem of the inspection table can be timely discovered and processed to ensure the accuracy of the detection reference. After the tool disc is installed, the flatness of the tool holder part of the tool disc is detected again to eliminate the influence of skew during the installation process. Through double flatness detections, error sources are eliminated to ensure the accuracy of the detection results.

[0017] 2. The first lead screw drives the clamping brackets to perform centering and clamping on the tool disc. The hydraulic lifting mechanism drives the second movable member to perform multi-point pressing and fixing on the tool holder part of the tool disc. The detection value of the pressure sensor ensures the uniformity of the pressing force applied to the tool disc. Cooperating with the clamping unit to clamp and fix the tool disc effectively improves the stability during the tool disc detection process, making the detection results more accurately reflect the true flatness of the tool disc. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a first axonometric structural schematic diagram of a cutter head flatness detection device according to the present invention;

[0020] Figure 2 It is a Figure 1 magnified structural schematic diagram at position A in the

[0021] Figure 3 It is a second axonometric structural schematic diagram of a cutter head flatness detection device according to the present invention;

[0022] Figure 4 It is a front view structural schematic diagram of a cutter head flatness detection device according to the present invention;

[0023] Figure 5 It is a Figure 4 magnified structural schematic diagram at position B in the

[0024] Figure 6 It is a Figure 4 magnified structural schematic diagram at position C in the

[0025] Figure 7 It is a side view partial sectional structural schematic diagram of a cutter head flatness detection device according to the present invention;

[0026] Figure 8 It is a Figure 7 magnified structural schematic diagram at position D in the

[0027] Figure 9 It is a third axonometric structural schematic diagram of a cutter head flatness detection device according to the present invention.

[0028] The description of the reference numerals is as follows:

[0029] 1. Operating table; 2. Detection table; 301. Installation box; 302. Pressure sensor; 303. Spring; 304. First moving part; 305. Ball; 306. Mounting seat; 307. Installation cavity; 308. Second moving part; 309. Hydraulic lifting mechanism; 401. First lead screw; 402. Clamping frame; 501. First motor; 502. Second lead screw; 601. Second motor; 602. Third lead screw; 603. Moving beam; 7. Placing rack; 8. Truss; 9. Third motor; 10. Auxiliary seat; 11. Support seat. Detailed implementation manner

[0030] As Figures 1 - 9 shown, a cutter head flatness detection device includes an operating table 1 and a detection table 2. A displacement unit, a rotation unit, and a truss 8 are fixedly installed on the operating table 1. A placing rack 7 is fixedly installed on the displacement unit. A lifting unit is fixedly installed on the placing rack 7. Detection units are fixedly installed on both the lifting unit and the truss 8. The detection table 2 is fixedly installed on the rotation unit. A clamping unit is fixedly installed on the detection table 2. The detection table 2 is directly below the detection unit on the truss 8. Before placing the cutter head, the height of the detection unit is adjusted by the lifting unit, the position of the detection unit is adjusted by the displacement unit, and the detection table 2 is driven to rotate by the rotation unit, so as to detect the flatness of the detection table 2 through the detection unit. After the detection of the detection table 2 is completed, the cutter head to be detected is placed on the detection table 2, and the cutter head is clamped and fixed by the clamping unit. The flatness of the tool holder part of the cutter head is detected by the detection unit on the truss 8. By detecting the flatness of the detection table 2 and the tool holder part of the cutter head, the error occurring during installation that affects the detection result is eliminated. The displacement unit moves the detection unit above the cutter head edge through the placing rack 7, and the lifting unit adjusts the height of the detection unit so that the detection unit moves to the cutter head edge to complete the flatness detection of the cutter head.

[0031] As Figures 1 - 7 、 Figure 9As shown in the figure, the detection unit includes an installation box 301, a hydraulic lifting mechanism 309, and a pressure sensor 302. The installation box 301 is fixedly installed on the lifting unit. A first movable part 304 is slidably installed at the lower end of the installation box 301. The hydraulic lifting mechanism 309 is fixedly installed on the truss 8. An installation seat 306 is fixedly installed at the telescopic end of the hydraulic lifting mechanism 309. Installation cavities 307 are arranged in the installation seat 306 in a row. A second movable part 308 is slidably arranged at the lower end of the installation seat 306. Springs 303 are sleeved on the part of the second movable part 308 located in the installation cavity 307 and the part of the first movable part 304 located in the installation box 301. The pressure sensors 302 are respectively fixedly installed on the inner upper surfaces of the installation box 301 and the installation cavity 307. The two ends of the spring 303 in the installation box 301 are respectively fixedly connected to the installation box 301 and the first movable part 304. The two ends of the spring 303 in the installation cavity 307 are respectively fixedly connected to the installation seat 306 and the second movable part 308. When not working, under the elastic force of the spring 303, neither the first movable part 304 nor the second movable part 308 is in contact with the pressure sensor 302. Before placing the cutter head, the lifting unit drives the installation box 301 to move, and the installation box 301 drives the first movable part 304 to move, so that the lower end of the first movable part 304 fits on the detection table 2. The detection table 2 reversely pushes the first movable part 304, so that the first movable part 304 applies a force to the pressure sensor 302. Rotate the detection table 2, and determine the flatness of the detection table 2 through the change range of the force applied by the first movable part 304 to the pressure sensor 302. After the flatness detection of the detection table 2 is completed, place the cutter head on the detection table 2. Drive the installation seat 306 to move through the hydraulic lifting mechanism 309, and the installation seat 306 drives the second movable part 308 to move, so that the lower end of the second movable part 308 fits on the tool holder part of the cutter head. The second movable part 308 moves reversely and fits on the pressure sensor 302. Through the detected value of the pressure sensor 302, judge whether the tool holder part of the cutter head is skewed during the installation process, detect the flatness of the tool holder part of the cutter head, and perform multi-point pressing and fixing on the tool holder part of the cutter head through the second movable part 308. Ensure the uniformity of the pressing force applied to the cutter head through the detected value of the pressure sensor 302, cooperate with the clamping unit to clamp and fix the cutter head, effectively improve the stability during the cutter head detection process, and make the detection result more accurately reflect the true flatness of the cutter head. By detecting the flatness after the installation of the detection table 2 and the tool holder part of the cutter head, the unevenness problem existing in the detection table 2 can be found and processed in time, ensuring the accuracy of the detection reference. After the cutter head is installed, detect the flatness of the tool holder part of the cutter head again to eliminate the influence of skewness during the installation process. Through double flatness detection, eliminate the error source and ensure the accuracy of the detection result. After the cutter head is fixed and the detection of the tool holder part of the cutter head is completed, the first movable part 304 is moved to the cutting edge part of the cutter head through the lifting unit and the displacement unit. During the rotation of the cutter head,The force applied by the first movable member 304 is detected by the pressure sensor 302, thereby determining the flatness of the cutting edge portion of the cutter head.

[0032] As Figure 2 , Figure 5 , Figure 6 shown, ball bearings 305 are rotatably installed at the lower ends of the first movable member 304 and the second movable member 308. Through the ball bearings 305, the first movable member 304 and the second movable member 308 can move better on the cutter head, increasing the convenience of adjusting the detection position.

[0033] As Figure 7 , Figure 8 shown, the clamping unit includes a first lead screw 401. The first lead screw 401 is rotatably installed on the inspection table 2. A knob is fixedly installed at the end of the first lead screw 401. The first lead screw 401 is a bidirectional lead screw, and the thread directions at both ends of the first lead screw 401 are opposite. Clamping brackets 402 are respectively threadedly connected to both ends of the first lead screw 401. The clamping brackets 402 are slidably connected to the inspection table 2. After the cutter head is placed on the inspection table 2, the first lead screw 401 is rotated by the knob, and the clamping brackets 402 are driven to move by the first lead screw 401. The cutter head is centered and clamped by the clamping brackets 402, effectively preventing the cutter head from skewing during the detection process and effectively improving the applicable range.

[0034] As Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 9 shown, the displacement unit includes two first motors 501 and two second lead screws 502. The two first motors 501 are respectively fixedly installed on both sides of the operation table 1. The two second lead screws 502 are respectively rotatably connected to the operation table 1. The second lead screws 502 are fixedly connected to the output shafts of the first motors 501. The second lead screws 502 are threadedly connected to the placement rack 7. The first motors 501 drive the second lead screws 502 to rotate, and the second lead screws 502 drive the placement rack 7 to move, thereby adjusting the detection position and facilitating the detection of the flatness at different positions.

[0035] As Figure 1 , Figures 3 - 5As shown in the figure, the lifting unit includes a second motor 601 and a third lead screw 602. The second motor 601 is fixedly installed on the placement rack 7. The third lead screw 602 is rotatably installed on the placement rack 7. The third lead screw 602 is fixedly connected to the output shaft of the second motor 601. A movable beam 603 is threadedly connected to the third lead screw 602. The movable beam 603 is slidably connected to the placement rack 7. The end of the movable beam 603 is fixedly connected to the installation box 301. By driving the third lead screw 602 to rotate through the second motor 601, driving the movable beam 603 to move through the third lead screw 602, and driving the installation box 301 to move through the movable beam 603, the height of the installation box 301 can be adjusted, facilitating the flatness detection of cutter discs with different thicknesses.

[0036] As Figure 4 , Figure 9 shown in the figure, the rotation unit includes a third motor 9. The third motor 9 is fixedly installed on the lower surface of the operating table 1. The output shaft of the third motor 9 is rotatably connected to the operating table 1. The output shaft of the third motor 9 is fixedly connected to the detection table 2. During detection, by driving the detection table 2 to rotate through the third motor 9 and driving the cutter disc to rotate through the detection table 2, the detection position of the cutter disc can be adjusted. Through the third motor 9, the rotation adjustment speed of the detection table 2 and the cutter disc can be controlled, ensuring the stability and uniform rotation of the detection table 2 and the cutter disc during the adjustment process, avoiding large fluctuations in the detection values caused by excessive speed changes during rotation, and ensuring the accuracy of the detection results.

[0037] As Figure 4 , Figure 8 shown in the figure, a support base 11 is fixedly installed on the upper surface of the operating table 1. An auxiliary base 10 is slidably installed on the support base 11. The auxiliary base 10 is connected to the lower surface of the detection table 2. During the detection process, the detection table 2 is supported by the auxiliary base 10 and the support base 11, improving the stability of the detection table 2 during rotational operation and preventing the detection table 2 from tilting.

[0038] Working principle: As Figure 1 , Figures 3 - 5 , Figure 7 , Figure 9As shown, the first motor 501 drives the second lead screw 502 to rotate, and the second lead screw 502 drives the placement rack 7 to move, so that the first movable member 304 moves above the inspection table 2. The second motor 601 drives the third lead screw 602 to rotate, and the third lead screw 602 drives the movable beam 603 to move. The movable beam 603 drives the installation box 301 to move, and the installation box 301 drives the first movable member 304 to move, so that the first movable member 304 drives the ball 305 to fit on the inspection table 2. The first movable member 304 moves in the reverse direction to apply a force to the pressure sensor 302. The third motor 9 drives the inspection table 2 to rotate, and the first movable member 304 moves along the inspection table 2 through the ball 305. The flatness of the inspection table 2 is determined by the change range of the force applied by the first movable member 304 to the pressure sensor 302;

[0039] As Figures 1 - 9 shown, after the flatness inspection of the inspection table 2 is completed, the first lead screw 401 is rotated by the knob, and the first lead screw 401 drives the clamping bracket 402 to move. The tool holder is centered and clamped by the clamping bracket 402. The hydraulic lifting mechanism 309 drives the mounting seat 306 to move, and the mounting seat 306 drives the second movable member 308 to move, so that the second movable member 308 presses on the tool holder part of the tool disc through the ball 305 to press and fix the tool disc. At the same time, the second movable member 308 moves in the reverse direction and fits on the pressure sensor 302. Whether the tool holder part of the tool disc is skewed during installation is judged by the detected value of the pressure sensor 302, and the flatness of the tool holder part of the tool disc is detected;

[0040] As Figure 1 、 Figures 3 - 5 、 Figure 7 、 Figure 9 shown, after the tool disc is fixed, the first motor 501 drives the second lead screw 502 to rotate, and the second lead screw 502 drives the placement rack 7 to move, so that the first movable member 304 moves above the inspection table 2. The second motor 601 drives the third lead screw 602 to rotate, and the third lead screw 602 drives the movable beam 603 to move. The movable beam 603 drives the installation box 301 to move, and the installation box 301 drives the first movable member 304 to move, so that the first movable member 304 drives the ball 305 to fit on the cutting edge part of the tool disc. The third motor 9 drives the tool disc to rotate through the inspection table 2. The flatness of the tool disc part of the tool disc is determined by the change of the pressure applied by the first movable member 304 to the pressure sensor 302, and the inspection of the tool disc is completed.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all such changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A cutter disc flatness detection device, characterized in that: The invention comprises an operating table (1) and a detection table (2), wherein a displacement unit, a rotation unit and a truss (8) are mounted on the operating table (1), a placement frame (7) is mounted on the displacement unit, a lifting unit is mounted on the placement frame (7), a detection unit is mounted on the lifting unit and the truss (8), the detection table (2) is mounted on the rotation unit, a clamping unit is mounted on the detection table (2), and the detection table (2) is located directly below the detection unit on the truss (8); The detection unit comprises an installation box (301), a hydraulic lifting mechanism (309), and a pressure sensor (302); the installation box (301) is installed on the lifting unit; a first movable part (304) is slidably installed at the lower end of the installation box (301); the hydraulic lifting mechanism (309) is installed on the truss (8); a mounting seat (306) is installed on the telescopic end of the hydraulic lifting mechanism (309); a mounting cavity (307) is arranged in the mounting seat (306); a second movable part (308) is slidably arranged at the lower end of the mounting seat (306); a spring (303) is sleeved on a portion of the second movable part (308) located in the mounting cavity (307) and a portion of the first movable part (304) located in the installation box (301); and the pressure sensor (302) is respectively installed on the inner upper surfaces of the installation box (301) and the installation cavity (307).

2. A cutter disc flatness detection device according to claim 1, characterized in that: Balls (305) are rotatably mounted on the lower ends of the first movable member (304) and the second movable member (308).

3. The cutter disc flatness detection device according to claim 1, characterized in that: The clamping unit comprises a first screw rod (401), the first screw rod (401) is rotatably mounted on the detection platform (2), a knob is mounted on the end of the first screw rod (401), the first screw rod (401) is a bidirectional screw rod, the threads of the two ends of the first screw rod (401) are in opposite directions, the two ends of the first screw rod (401) are respectively threadedly connected to a clamping frame (402), and the clamping frame (402) is slidably connected to the detection platform (2).

4. The cutter disc flatness detection device according to claim 1, characterized in that: The displacement unit comprises a first motor (501) and a second screw rod (502); there are two first motors (501) and they are respectively mounted on two sides of the operating table (1); there are two second screw rods (502) and they are respectively rotatably connected to the operating table (1); the second screw rod (502) is connected to the output shaft of the first motor (501); and the second screw rod (502) is threadedly connected to the placement frame (7).

5. The cutter disc flatness detection device according to claim 1, characterized in that: The lifting unit comprises a second motor (601) and a third screw rod (602); the second motor (601) is mounted on the placement rack (7); the third screw rod (602) is rotatably mounted on the placement rack (7); the third screw rod (602) is connected to the output shaft of the second motor (601); a movable beam (603) is threadedly connected to the third screw rod (602); the movable beam (603) is slidably connected to the placement rack (7); and an end of the movable beam (603) is fixedly connected to the installation box (301).

6. The cutter head flatness detection device according to claim 1, characterized in that: The rotating unit comprises a third motor (9), the third motor (9) being mounted on the lower surface of the operating table (1), the output shaft of the third motor (9) being rotatably connected to the operating table (1), and the output shaft of the third motor (9) being connected to the detection table (2).

7. The cutter disc flatness detection device according to claim 1, characterized in that: A support seat (11) is installed on the upper surface of the operating table (1), an auxiliary seat (10) is slidably installed on the support seat (11), and the auxiliary seat (10) is connected to the lower surface of the detection table (2).

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