A high-speed rotary testing machine for grinding wheel testing

Abstract

The invention discloses a high-speed rotary testing machine for grinding wheel detection, which relates to the technical field of grinding wheel rotary strength detection. The machine comprises a supporting unit, wherein the supporting unit is externally connected to a power unit, a heat dissipation unit is installed on the supporting unit, a first positioning unit and a second positioning unit are installed in the supporting unit, the first positioning unit is installed above the second positioning unit, the first positioning unit comprises a driving mechanism and a first positioning mechanism, the driving mechanism is installed in the supporting unit, the first positioning mechanism is installed on the driving mechanism, the second positioning unit comprises a supporting mechanism and a second positioning mechanism, the supporting mechanism is installed in the supporting unit, and the second positioning mechanism is installed on the supporting mechanism; the invention can center and clamp the grinding wheel from the inside to the outside through a plurality of clamping plates, and clamp the grinding wheel up and down through a positioning block cooperated with a pressure block 2 and the elastic force of a spring 1, thereby ensuring the stability of the fixing of the grinding wheel and preventing the grinding wheel from deflecting during the rotation process.

Description

Technical Field

[0001] The invention relates to the technical field of grinding wheel rotation strength detection, in particular to a high-speed rotation testing machine for grinding wheel detection. Background Art

[0002] The rotational strength of the grinding wheel is one of the important indicators to measure whether the quality of the grinding wheel is qualified. If the rotational strength of the grinding wheel does not meet the requirements, it will directly affect personal safety. The rotation testing machine is a special equipment for testing the rotational strength of the grinding wheel. In the prior art, when performing a rotation test on the grinding wheel, a connecting rod suitable for the grinding wheel aperture is usually installed at the end of the motor spindle, and the grinding wheel is fixed on the connecting rod. This fixing method is often only applicable to one size of grinding wheel, and the adjustable range is small. It is troublesome to replace it, which will reduce the detection efficiency.

[0003] The Chinese utility model patent with application number "CN202320425728.3" proposes a strength detection rotary machine for ceramic grinding wheel processing. The patent achieves the effect of reducing noise during the detection process by setting up a motor, a lifting groove, and a silencer mechanism. However, the patent cannot detect grinding wheels of different sizes and has a small scope of application. At the same time, manual fixation is required when fixing the grinding wheel, and the fixing effect of the grinding wheel is not good, which will affect the accuracy of the detection. Summary of the invention

[0004] In view of the above technical problems, the present invention proposes a high-speed rotary testing machine for grinding wheel inspection, comprising a support unit, the support unit is externally connected to a power unit, a heat dissipation unit is installed on the support unit, a first positioning unit and a second positioning unit are installed in the support unit, the first positioning unit is installed above the second positioning unit, the first positioning unit comprises a driving mechanism and a first positioning mechanism, the driving mechanism is installed in the support unit, the first positioning mechanism is installed on the driving mechanism, the second positioning unit comprises a supporting mechanism and a second positioning mechanism, the supporting mechanism is installed in the support unit, and the second positioning mechanism is installed on the support mechanism.

[0005] Furthermore, the driving mechanism includes a lifting frame, a motor, a screw, a support block 1, a guide rod and a support block 2, the motor, the support block 1 and the support block 2 are all fixedly installed in the support unit, the guide rod is fixedly installed on the support block 2, the screw is rotatably installed on the support block 1, the output shaft of the motor is coaxially fixedly connected with the screw, the lifting frame is slidably connected with the guide rod, the lifting frame is connected with the screw by threads, and two support blocks 2 are provided, which are distributed upper and lower at both ends of the guide rod.

[0006] Further, the first positioning mechanism includes a rotating frame 1, an insertion rod, a support ring, a pressure block 1, a spring 1 and a support frame 1, the rotating frame is coaxially rotatably mounted on the lifting frame, the insertion rod is fixedly mounted on the rotating frame 1, two insertion rods are provided, and the two insertion rods are symmetrically distributed about the axis of the rotating frame 1, the support ring is coaxially fixedly mounted in the rotating frame 1, the support frame is coaxially fixedly mounted in the support ring, the pressure block 1 is fixedly mounted on the support frame 1, a plurality of pressure blocks 1 are provided, and are evenly spaced in a circle on the support frame 1, each of the pressure blocks 1 is connected to a pressure block 2 via a spring 1, and an elastic clip is provided at the connection between the rotating frame 1 and the lifting frame, and when there is no external force driving, the rotating frame 1 cannot rotate relative to the lifting frame.

[0007] Furthermore, the supporting mechanism includes a rotating frame 2, a supporting frame 2 and a rotating wheel, the supporting frame 2 is fixedly installed in the supporting unit, the rotating frame 2 is coaxially rotatably installed on the supporting frame 2, the rotating wheel is coaxially fixedly installed on the rotating frame 2, the rotating wheel is connected to the power unit, and the rotating wheel is driven to rotate by the power unit, and two slots corresponding to the insertion rod are arranged on the rotating frame 2.

[0008] Furthermore, the second positioning mechanism includes a clamping plate, a connecting ring, a fixing ring, a connecting shaft, a connecting tube, a positioning block, a sliding rod, a positioning frame and a supporting shaft, the supporting shaft is coaxially fixedly installed in the rotating frame second, the connecting shaft is coaxially fixedly installed on the supporting shaft, the positioning frame is coaxially fixedly installed on the connecting shaft, the positioning block is fixedly installed on the sliding rod, a sliding groove is provided on the positioning block, the connecting ring and the connecting tube are both connected to the connecting shaft through a spline, the connecting ring is coaxially fixedly connected to the connecting tube, the fixing ring is coaxially fixedly installed on the connecting shaft, a spring two is connected between the connecting ring and the fixing ring, the spring two is sleeved on the connecting shaft, the sliding rod is slidably installed in the sliding groove on the positioning block, the clamping plate is fixedly installed on the sliding rod, and a connecting rod is hinged between the clamping plate and the connecting tube.

[0009] Furthermore, the clamping plates, positioning blocks and sliding rods are provided in plurality and are evenly spaced and distributed in a circular shape, and each of the clamping plates is hinged with two connecting rods.

[0010] Furthermore, the support unit includes a test box, a support column and a support seat, the support seat is used for support, the support column is fixedly installed on the support seat, the test box is fixedly installed on the support column, there are multiple support columns and support seats, and they are distributed in a rectangular shape, the motor, support block 1, support block 2 and support frame 2 are all fixedly installed in the test box, and a feed port is provided on the support seat, and a warehouse door is installed at the feed port.

[0011] Furthermore, the heat dissipation unit includes a heat dissipation device and a heat dissipation plate, the heat dissipation device is fixedly installed on the top of the test box, the heat dissipation plate is detachably installed on one side of the test box, and a plurality of heat dissipation holes are arranged on the heat dissipation plate.

[0012] Compared with the prior art, the present invention has the following advantages: (1) The present invention can center and clamp the grinding wheel from the inside out through a plurality of clamping plates, and clamp the grinding wheel up and down through the elastic force of the pressure block 2 and the spring 1 in cooperation with the positioning block, thereby ensuring the stability of the grinding wheel fixation and preventing the grinding wheel from shifting during rotation; (2) The present invention can perform a rotation test of the grinding wheel at different speeds by changing the rotation speed of the power unit. Since the compartment door is closed, the problem of injury to the experimenter due to the breakage of the grinding wheel during rotation can be prevented; (3) During the detection process, the present invention dissipates heat inside the test box through the heat dissipation holes on the heat dissipation device and the heat dissipation plate to avoid excessive temperature affecting the test effect; (4) The present invention can adjust the first positioning unit so as to be suitable for grinding wheels of different sizes while maintaining the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a side view of the present invention.

[0015] Figure 3 It is a top view of the present invention.

[0016] Figure 4 The first positioning unit structure of the present invention is schematically shown in FIG. Figure 1 .

[0017] Figure 5 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0018] Figure 6 The first positioning unit structure of the present invention is schematically shown in FIG. Figure 2 .

[0019] Figure 7 For the present invention Figure 6 Cross-sectional view along the AA direction.

[0020] Figure 8 It is a schematic diagram of the local structure of the present invention.

[0021] Fig. 9 It is a schematic diagram of the structure of the second positioning unit of the present invention.

[0022] Figure numbers: 101-test box; 102-support column; 103-support seat; 201-heat dissipation device; 202-heat dissipation plate; 301-lifting frame; 302-motor; 303-screw; 304-support block one; 305-rotating frame one; 306-insertion rod; 307-guide rod; 308-support block two; 309-support ring; 310-pressure block one; 311-spring one; 312-pressure block two; 313-support frame one; 401-clamping plate; 402-connecting rod; 403-connecting ring; 404-fixing ring; 405-connecting shaft; 406-spring two; 407-connecting cylinder; 408-positioning block; 409-slide rod; 410-positioning frame; 411-support shaft; 501-rotating frame two; 502-support frame two; 503-rotating wheel. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0024] Example: Figure 1-Figure 9 A high-speed rotary testing machine for grinding wheel inspection is shown, comprising a support unit, the support unit is externally connected to a power unit, a heat dissipation unit is installed on the support unit, a first positioning unit and a second positioning unit are installed in the support unit, the first positioning unit is installed above the second positioning unit, the first positioning unit comprises a driving mechanism and a first positioning mechanism, the driving mechanism is installed in the support unit, the first positioning mechanism is installed on the driving mechanism, the second positioning unit comprises a supporting mechanism and a second positioning mechanism, the supporting mechanism is installed in the support unit, and the second positioning mechanism is installed on the support mechanism.

[0025] The driving mechanism includes a lifting frame 301, a motor 302, a screw 303, a support block 1 304, a guide rod 307 and a support block 2 308. The motor 302, the support block 1 304 and the support block 2 308 are all fixedly installed in the support unit. The guide rod 307 is fixedly installed on the support block 2 308. The screw 303 is rotatably installed on the support block 1 304. The output shaft of the motor 302 is coaxially fixedly connected with the screw 303. The lifting frame 301 is slidably connected with the guide rod 307. The lifting frame 301 is connected with the screw 303 by threads. Two support blocks 2 308 are provided, which are distributed at both ends of the guide rod 307 in an upper and lower manner.

[0026] The first positioning mechanism includes a rotating frame 305, an insertion rod 306, a support ring 309, a pressure block 310, a spring 311 and a support frame 313. The rotating frame 305 is coaxially rotatably mounted on the lifting frame 301, the insertion rod 306 is fixedly mounted on the rotating frame 305, two insertion rods 306 are provided, and the two insertion rods 306 are symmetrically distributed about the axis of the rotating frame 305, the support ring 309 is coaxially fixedly mounted in the rotating frame 305, the support frame 313 is coaxially fixedly mounted in the support ring 309, the pressure block 310 is fixedly mounted on the support frame 313, a plurality of pressure blocks 310 are provided, and are evenly spaced on the support frame 313 in a circular shape, each pressure block 310 is connected to a pressure block 2 312 through a spring 311, and an elastic clip is provided at the connection between the rotating frame 305 and the lifting frame 301. When there is no external force driving, the rotating frame 305 cannot rotate relative to the lifting frame 301.

[0027] The supporting mechanism includes a rotating frame 501, a supporting frame 502 and a rotating wheel 503. The supporting frame 502 is fixedly installed in the supporting unit. The rotating frame 501 is coaxially rotatably installed on the supporting frame 502. The rotating wheel 503 is coaxially fixedly installed on the rotating frame 501. The rotating wheel 503 is connected to the power unit and is driven to rotate by the power unit. Two slots corresponding to the insertion rod 306 are arranged on the rotating frame 501.

[0028] The second positioning mechanism includes a clamping plate 401, a connecting ring 403, a fixing ring 404, a connecting shaft 405, a connecting tube 407, a positioning block 408, a sliding rod 409, a positioning frame 410 and a supporting shaft 411. The supporting shaft 411 is coaxially fixedly installed in the rotating frame 501, the connecting shaft 405 is coaxially fixedly installed on the supporting shaft 411, the positioning frame 410 is coaxially fixedly installed on the connecting shaft 405, the positioning block 408 is fixedly installed on the sliding rod 409, a sliding groove is provided on the positioning block 408, and the connecting ring 40 3 and the connecting tube 407 are connected to the connecting shaft 405 through a spline, the connecting ring 403 is coaxially fixedly connected to the connecting tube 407, the fixing ring 404 is coaxially fixedly installed on the connecting shaft 405, a spring 406 is connected between the connecting ring 403 and the fixing ring 404, the spring 406 is sleeved on the connecting shaft 405, the slide bar 409 is slidably installed in the slide groove on the positioning block 408, the clamping plate 401 is fixedly installed on the slide bar 409, and a connecting rod 402 is hinged between the clamping plate 401 and the connecting tube 407.

[0029] A plurality of clamping plates 401 , positioning blocks 408 and sliding rods 409 are provided and are evenly spaced and distributed in a circular shape. Two connecting rods 402 are hinged to each clamping plate 401 .

[0030] The support unit includes a test box 101, a support column 102 and a support seat 103. The support seat 103 is used for support. The support column 102 is fixedly installed on the support seat 103. The test box 101 is fixedly installed on the support column 102. There are multiple support columns 102 and support seats 103, which are distributed in a rectangular shape. The motor 302, support block 1 304, support block 2 308 and support frame 2 502 are all fixedly installed in the test box 101. A feed port is provided on the support seat 103, and a warehouse door is installed at the feed port.

[0031] The heat dissipation unit includes a heat dissipation device 201 and a heat dissipation plate 202 . The heat dissipation device 201 is fixedly mounted on the top of the test box 101 . The heat dissipation plate 202 is detachably mounted on one side of the test box 101 . A plurality of heat dissipation holes are arranged on the heat dissipation plate 202 .

[0032] The working principle of the present invention is as follows: open the door at the feed port of the support seat 103, place the grinding wheel to be tested from the feed port onto the positioning block 408, the output shaft of the motor 302 drives the lead screw 303 to rotate, and when the lead screw 303 rotates, it drives the lifting frame 301 to slide on the guide rod 307, and the lifting frame 301 drives the rotating frame 1 305 and the insertion rod 306 to move, so that the insertion rod 306 is inserted into the slot on the rotating frame 2 501, and at the same time, the rotating frame 1 305 drives the support ring 309 to move, and the support ring 309 drives the pressure block 1 310, the spring 1 311 and the pressure block 2 312 to move through the pressure block 1 310, and when the pressure block 2 312 moves to the position of the grinding wheel, it presses the grinding wheel; when the support frame 1 313 moves to the connecting When the connecting ring 403 is in the position, the support frame 1 313 drives the connecting ring 403 and the connecting tube 407 to move, the spring 2 406 is stretched, and the spring 1 311 is compressed. When the connecting ring 403 moves, the clamping plate 401 is driven to open through the connecting rod 402, so that the grinding wheel is centered and clamped by multiple clamping plates 401, and the grinding wheel is fixed by the squeezing of the pressure block 2 312 and the elastic force of the spring 1 311, so that the grinding wheel can be centered and clamped from the inside to the outside through multiple clamping plates 401, and the grinding wheel is clamped up and down by the positioning block 408 through the pressure block 2 312 and the elastic force of the spring 1 311, thereby ensuring the stability of the grinding wheel fixation and preventing the grinding wheel from deflecting during rotation.

[0033] After fixing the grinding wheel, close the door at the feed port of the test box 101, and drive the rotating wheel 503 to rotate through the external power unit. When the rotating wheel 503 rotates, it drives the rotating frame 2 501 to rotate, and the rotating frame 2 501 drives the supporting shaft 411 to rotate. The supporting shaft 411 drives the positioning block 408, the connecting tube 407, and the connecting ring 403 to rotate through the positioning frame 410, thereby driving the clamping plate 401 and the connecting ring 403 to rotate. At the same time, the rotating frame 2 501 drives the rotating frame 1 305 to rotate through the insertion rod 306, and the rotating frame 1 305 drives the pressing block 1 310 and the pressing block 2 312 to rotate through the supporting ring 309, thereby driving the grinding wheel to rotate. By changing the rotation speed of the power unit, the grinding wheel can be tested for rotation at different speeds. Since the door is closed, the problem of injury to the experimenter due to the breakage of the grinding wheel during the rotation process can be prevented.

[0034] During the testing process, the heat inside the test box 101 is dissipated through the heat dissipation holes on the heat dissipation device 201 and the heat dissipation plate 202 to prevent the test effect from being affected by excessive temperature.

Claims

1. A high-speed rotary testing machine for grinding wheel detection, comprising a support unit, wherein the support unit is externally connected to a power unit, characterized in that: A heat dissipation unit is installed on the support unit, a first positioning unit and a second positioning unit are installed in the support unit, the first positioning unit is installed above the second positioning unit, the first positioning unit includes a driving mechanism and a first positioning mechanism, the driving mechanism is installed in the support unit, the first positioning mechanism is installed on the driving mechanism, the second positioning unit includes a supporting mechanism and a second positioning mechanism, the supporting mechanism is installed in the support unit, and the second positioning mechanism is installed on the supporting mechanism; The driving mechanism comprises a lifting frame (301), a motor (302), a lead screw (303), a support block 1 (304), a guide rod (307) and a support block 2 (308); the motor (302), the support block 1 (304) and the support block 2 (308) are all fixedly mounted in the support unit; the guide rod (307) is fixedly mounted on the support block 2 (308); the lead screw (303) is rotatably mounted on the support block 1 (304); the output shaft of the motor (302) is coaxially fixedly connected to the lead screw (303); the lifting frame (301) is slidably connected to the guide rod (307); the lifting frame (301) is connected to the lead screw (303) by threads; and two support blocks 2 (308) are provided, which are distributed at both ends of the guide rod (307) in an upper and lower position. The first positioning mechanism comprises a rotating frame (305), an insert rod (306), a support ring (309), a pressure block (310), a spring (311) and a support frame (313); the rotating frame (305) is coaxially rotatably mounted on the lifting frame (301); the insert rod (306) is fixedly mounted on the rotating frame (305); two insert rods (306) are provided, and the two insert rods (306) are symmetrically distributed about the axis of the rotating frame (305); the support ring (309) is coaxially fixedly mounted in the rotating frame (305); The support frame 1 (313) is coaxially fixedly installed in the support ring (309), and the pressure block 1 (310) is fixedly installed on the support frame 1 (313). A plurality of the pressure blocks 1 (310) are provided and are evenly spaced and distributed on the support frame 1 (313) in a circular shape. Each of the pressure blocks 1 (310) is connected to a pressure block 2 (312) via a spring 1 (311). An elastic clip is provided at the connection between the rotating frame 1 (305) and the lifting frame (301). When there is no external force driving, the rotating frame 1 (305) cannot rotate relative to the lifting frame (301); The support mechanism comprises a rotating frame 2 (501), a supporting frame 2 (502) and a rotating wheel (503); the supporting frame 2 (502) is fixedly mounted in the supporting unit; the rotating frame 2 (501) is coaxially rotatably mounted on the supporting frame 2 (502); the rotating wheel (503) is coaxially fixedly mounted on the rotating frame 2 (501); the rotating wheel (503) is connected to a power unit and is driven to rotate by the power unit; and the rotating frame 2 (501) is provided with two slots corresponding to the insertion rod (306); The second positioning mechanism comprises a clamping plate (401), a connecting ring (403), a fixing ring (404), a connecting shaft (405), a connecting tube (407), a positioning block (408), a sliding rod (409), a positioning frame (410) and a supporting shaft (411); the supporting shaft (411) is coaxially fixedly mounted in the second rotating frame (501); the connecting shaft (405) is coaxially fixedly mounted on the supporting shaft (411); the positioning frame (410) is coaxially fixedly mounted on the connecting shaft (405); the positioning block (408) is fixedly mounted on the sliding rod (409); a sliding groove is provided on the positioning block (408); and the connecting ring (40 3) and the connecting tube (407) are connected to the connecting shaft (405) through a spline, the connecting ring (403) and the connecting tube (407) are coaxially fixedly connected, the fixing ring (404) is coaxially fixedly installed on the connecting shaft (405), a second spring (406) is connected between the connecting ring (403) and the fixing ring (404), the second spring (406) is sleeved on the connecting shaft (405), the sliding rod (409) is slidably installed in a sliding groove on the positioning block (408), the clamping plate (401) is fixedly installed on the sliding rod (409), and a connecting rod (402) is hinged between the clamping plate (401) and the connecting tube (407); The support unit comprises a test box (101), a support column (102) and a support seat (103); the support seat (103) is used for support; the support column (102) is fixedly mounted on the support seat (103); the test box (101) is fixedly mounted on the support column (102); a plurality of the support columns (102) and the support seat (103) are provided and are distributed in a rectangular shape; the motor (302), support block 1 (304), support block 2 (308) and support frame 2 (502) are fixedly mounted in the test box (101); a feed port is provided on the support seat (103); a warehouse door is installed at the feed port.

2. A high-speed rotary testing machine for grinding wheel inspection as claimed in claim 1, characterized in that: The clamping plates (401), positioning blocks (408) and sliding rods (409) are provided in plurality and are evenly spaced and distributed in a circular shape. Two connecting rods (402) are hingedly connected to each of the clamping plates (401).

3. A high-speed rotary testing machine for grinding wheel inspection as claimed in claim 1, characterized in that: The heat dissipation unit comprises a heat dissipation device (201) and a heat dissipation plate (202); the heat dissipation device (201) is fixedly mounted on the top of the test box (101); the heat dissipation plate (202) is detachably mounted on one side of the test box (101); and a plurality of heat dissipation holes are provided on the heat dissipation plate (202).

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