Shaft bending detection device

Abstract

The utility model relates to the technical field of shaft workpiece detection, in particular to a shaft bending detection device which comprises a device platform, one end of the top end of the device platform is fixedly connected with a supporting frame, the top end of the supporting frame is fixedly connected with a detection mechanism, and the detection mechanism penetrates into the supporting frame and is connected to one end of the supporting frame in a sliding mode. And a clamping mechanism is fixedly installed at the top end of the device platform and located below the detection mechanism, the clamping mechanism comprises a fixing plate, the fixing plate is fixedly installed at the top end of the device platform, and a plurality of clamping elastic pieces are fixedly installed at the top end of the fixing plate. According to the utility model, through mutual cooperation of internal parts of the clamping mechanism, clamping and fixing of a shaft workpiece on the device platform can be completed, the shaft workpiece is driven to rotate, and through unified sliding of internal parts of the detection mechanism on the support frame, a dial indicator can be driven to be in vertical contact with the surface of the shaft workpiece. And the coaxiality detection of the countershaft workpiece is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft workpiece detection, and particularly relates to a shaft bending detection device. Background Technique

[0002] Coaxiality detection is a problem often encountered in the measurement of shaft parts. There are many shaft part products that require strict coaxiality inspection, especially for products with high precision requirements, the inspection is more rigorous. Coaxiality is used to control the coaxiality error of the measured axis of the shaft part with respect to the reference axis. The coaxiality error is the amount of change in the position of the measured axis relative to the reference axis. The coaxiality error is the non-concentricity of the centers of the circles reflected in the cross-section. Simply put, it is the degree of deviation between two axes that are required to be on the same straight line on the part. Taking the reference axis as an ideal straight line, the deviation between the two axes is usually the comprehensive result of three situations: the bending of the measured axis, the inclination of the measured axis, and the offset of the measured axis.

[0003] When performing coaxiality detection on a shaft workpiece, a dial indicator is required. After zeroing the dial indicator, the thimble at the bottom end of the dial indicator is vertically attached to the shaft workpiece, and then the shaft workpiece is rotated. When the coaxiality of the shaft workpiece is uneven, the surface of the rotating shaft workpiece will squeeze the thimble of the dial indicator, causing the pointer on the dial indicator to rotate, thus completing the coaxiality test of the shaft workpiece. However, the existing testing methods are all manually operated, resulting in the contact angle between the dial indicator and the shaft workpiece not being completely perpendicular, thereby affecting the accuracy of the test results of the dial indicator.

[0004] Therefore, it is very necessary for us to propose a shaft bending detection device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shaft bending detection device. Through the mutual cooperation between the internal parts of the clamping mechanism, the clamping and fixing of the shaft workpiece on the device platform can be completed, and the shaft workpiece can be driven to rotate. Through the unified sliding of the internal parts of the detection mechanism on the support frame, the dial indicator can be driven to be in vertical contact with the surface of the shaft workpiece, and the coaxiality detection of the shaft workpiece can be completed, so as to solve the problem that in the prior art, the existing testing methods are all manually operated, resulting in the contact angle between the dial indicator and the shaft workpiece not being completely perpendicular, thereby affecting the accuracy of the test results of the dial indicator.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A shaft bending detection device, including a device platform, one end of the top of the device platform is fixedly connected with a support frame, the top of the support frame is fixedly connected with a detection mechanism, and penetrates to the inside of the support frame and is slidably connected to one end of the support frame. A clamping mechanism is fixedly installed on the top of the device platform and is located below the detection mechanism.

[0007] Preferably, the detection mechanism includes a servo motor which is fixedly installed at the top of the support frame. A threaded rod is rotatably connected to the bottom end of the servo motor and penetrates into the interior of the support frame. A support plate is sleeved on the outer wall of the threaded rod and is slidably connected to the interior of the support frame and is located at one end of the support frame. A plurality of dial indicators are installed at the top of the support plate and penetrate through the support plate to the bottom end of the support plate. A limit ring is sleeved on the outer wall of the dial indicator and is slidably connected to the interior of the support plate. A telescopic spring is fixedly connected to the top end of the limit ring and is distributed around the outer wall of the dial indicator. Limit sliders are fixedly installed on both sides of the limit ring and are slidably connected to the interior of the support plate.

[0008] Preferably, the clamping mechanism includes a fixing plate which is fixedly installed at the top of the device platform and is located below the support plate. A plurality of clamping elastic pieces are installed at the top of the fixing plate. A control motor is fixedly installed on one side of the fixing plate. A connecting shaft is rotatably connected to one side of the control motor and penetrates into the interior of the fixing plate. A support rod is sleeved on the outer wall of the connecting shaft and penetrates through the fixing plate to the inner wall of the clamping elastic piece. A plurality of friction bumps are arranged on the outer wall of the support rod.

[0009] Preferably, a sliding groove matching the support plate is provided on the inner wall of the support frame. An internal thread matching the external thread of the threaded rod is provided on the inner wall of the support plate. A thimble is provided at the bottom end of the dial indicator.

[0010] Preferably, a telescopic groove matching the dial indicator is provided in the support plate. A support groove matching the limit ring is provided in the support plate. A limit groove matching the telescopic spring is provided in the support plate.

[0011] Preferably, a transmission groove matching the connecting shaft is provided in the fixing plate. A clamping groove matching the shaft workpiece is provided in the inner wall of the clamping elastic piece. The friction bumps are made of high-friction rubber.

[0012] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0013] 1. Place the shaft workpiece on the device platform, clamp the shaft workpiece on the inner wall of the clamping elastic piece through the clamping elastic piece, and make it contact with the support rod at the top of the fixed plate. Then start the control motor. The rotation of the control motor drives the connecting shaft to rotate, the rotation of the connecting shaft drives the support rod to rotate, and the rotation of the support rod drives the shaft workpiece to rotate through the friction bumps on the surface, so that the rotating surface of the shaft workpiece contacts the thimble at the bottom of the dial indicator. When the coaxiality of the shaft workpiece is inconsistent, the surface of the shaft workpiece squeezes the thimble of the dial indicator, causing the thimble to push the limit ring to squeeze the telescopic spring to contract and move, so that the limit ring slides inside the support plate through the limit slider, thereby driving the pointer inside the dial indicator to rotate, thus completing the detection work of the shaft workpiece, and the device can complete the detection operation of the shaft workpiece;

[0014] 2. By starting the servo motor, the rotation of the servo motor drives the threaded rod to rotate, the rotation of the threaded rod drives the support plate to slide on the support frame, so that the support plate drives multiple dial indicators to gradually approach the shaft workpiece on the inner wall of the clamping elastic piece, making the thimbles at the bottoms of the multiple dial indicators vertically contact the surface of the shaft workpiece, and through the sliding of the limit ring inside the support plate, the limit ring drives the thimble at the bottom of the dial indicator to contact the pointer component inside the dial indicator, thereby driving the pointer inside the dial indicator to rotate, which can improve the accuracy of the detection data of the dial indicator and reduce the workload of the staff. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0016] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Schematic cross-sectional structure diagram of the fixed plate of the present utility model;

[0018] Figure 3 Schematic cross-sectional structure diagram of the support frame of the present utility model;

[0019] Figure 4 For the present utility model Figure 2 Enlarged structure diagram at position A;

[0020] Figure 5 For the present utility model Figure 3 Enlarged structure diagram at position B.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1. Device platform; 101. Support frame; 2. Detection mechanism; 201. Servo motor; 202. Threaded rod; 203. Support plate; 204. Dial indicator; 205. Limit ring; 206. Telescopic spring; 207. Limit slider; 3. Clamping mechanism; 301. Fixed plate; 302. Clamping elastic piece; 303. Control motor; 304. Connecting shaft; 305. Support rod; 306. Friction bump. Detailed implementation mode

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The present invention provides a Figures 1-5 shaft bending detection device as shown in the figure, including a device platform 1. One end of the top of the device platform 1 is fixedly connected with a support frame 101. The top of the support frame 101 is fixedly connected with a detection mechanism 2, which penetrates into the interior of the support frame 101 and is slidably connected to one end of the support frame 101. A clamping mechanism 3 is fixedly installed on the top of the device platform 1 and is located below the detection mechanism 2. Through the mutual cooperation of the internal parts of the clamping mechanism 3, the clamping and fixing of the shaft workpiece on the device platform 1 can be completed, and the shaft workpiece can be driven to rotate. Through the unified sliding of the internal parts of the detection mechanism 2 on the support frame 101, the dial indicator 204 can be driven to be vertically in contact with the surface of the shaft workpiece, and the coaxiality detection of the shaft workpiece can be completed.

[0025] Referring to the attached Figures 1-5 drawing, the detection mechanism 2 includes a servo motor 201. The servo motor 201 is fixedly installed on the top of the support frame 101. The bottom end of the servo motor 201 is rotationally connected with a threaded rod 202, which penetrates into the interior of the support frame 101. The outer wall of the threaded rod 202 is sleeved with a support plate 203, which is slidably connected to the interior of the support frame 101 and is located at one end of the support frame 101. A plurality of dial indicators 204 are installed on the top of the support plate 203 and penetrate through the support plate 203 to the bottom end of the support plate 203. The outer wall of the dial indicator 204 is sleeved with a limit ring 205, which is slidably connected to the interior of the support plate 203. The top end of the limit ring 205 is fixedly connected with a telescopic spring 206, which is distributed around the outer wall of the dial indicator 204. Limit sliders 207 are fixedly installed on both sides of the limit ring 205 and are slidably connected to the interior of the support plate 203. Through the unified sliding of the internal parts of the detection mechanism 2 on the support frame 101, the dial indicator 204 can be driven to be vertically in contact with the surface of the shaft workpiece, and the coaxiality detection of the shaft workpiece can be completed.

[0026] Referring to the attached Figures 1-5, the clamping mechanism 3 includes a fixing plate 301, which is fixedly installed at the top of the device platform 1 and is located below the support plate 203. A plurality of clamping elastic pieces 302 are fixedly installed at the top of the fixing plate 301. A control motor 303 is fixedly installed on one side of the fixing plate 301. A connecting shaft 304 is rotatably connected to one side of the control motor 303 and penetrates into the interior of the fixing plate 301. A support rod 305 is sleeved on the outer wall of the connecting shaft 304 and penetrates through the fixing plate 301 to the inner wall of the clamping elastic piece 302. A plurality of friction bumps 306 are arranged on the outer wall of the support rod 305. Through the mutual cooperation of the internal parts of the clamping mechanism 3, the clamping and fixing of the shaft workpiece on the device platform 1 can be completed, and the shaft workpiece can be driven to rotate.

[0027] Refer to the attached drawings of the specification Figures 1-5 , a sliding groove matching the support plate 203 is provided on the inner wall of the support frame 101. An internal thread matching the external thread of the threaded rod 202 is provided on the inner wall of the support plate 203. A thimble is provided at the bottom end of the dial indicator 204. By providing a sliding groove matching the support plate 203 on the inner wall of the support frame 101, it is convenient for the support plate 203 to drive the dial indicator 204 to slide vertically on the support frame 101.

[0028] Refer to the attached drawings of the specification Figures 1-5 , a telescopic groove matching the dial indicator 204 is provided inside the support plate 203. A support groove matching the limit ring 205 is provided inside the support plate 203. A limit groove matching the telescopic spring 206 is provided inside the support plate 203. By providing a telescopic groove matching the dial indicator 204 inside the support plate 203, it is convenient for the limit ring 205 to drive the thimble at the bottom end of the dial indicator 204 to contract and slide inside the support plate 203.

[0029] Refer to the attached drawings of the specification Figures 1-5 , a transmission groove matching the connecting shaft 304 is provided inside the fixing plate 301. A clamping groove matching the shaft workpiece is provided on the inner wall of the clamping elastic piece 302. The material of the friction bump 306 is high-friction rubber. By using high-friction rubber as the material of the friction bump 306, when the connecting shaft 304 drives the support rod 305 to rotate, it is convenient for the support rod 305 to drive the shaft workpiece to rotate through the friction bump 306.

[0030] The working principle of this utility model:

[0031] Refer to the attached drawings of the specification Figures 1-5, by placing the shaft workpiece on the device platform 1, clamping the shaft workpiece on the inner wall of the clamping elastic piece 302 through the clamping elastic piece 302, and contacting the support rod 305 at the top end of the fixing plate 301, then starting the control motor 303, the control motor 303 rotates to drive the connecting shaft 304 to rotate, the connecting shaft 304 rotates to drive the support rod 305 to rotate, and the support rod 305 rotates to drive the shaft workpiece to rotate through the friction bumps 306 on the surface, so that the rotating surface of the shaft workpiece contacts the thimble at the bottom end of the dial indicator 204. When the coaxiality of the shaft workpiece is inconsistent, the surface of the shaft workpiece presses the thimble of the dial indicator 204, causing the thimble to push the limit ring 205 to squeeze and contract the telescopic spring 206, so that the limit ring 205 slides inside the support plate 203 through the limit slider 207, thereby driving the pointer inside the dial indicator 204 to rotate, thus completing the detection work of the shaft workpiece, and the device can complete the detection operation of the shaft workpiece;

[0032] Refer to the attached drawings of the specification Figures 1-5 , by starting the servo motor 201, the servo motor 201 rotates to drive the threaded rod 202 to rotate, the threaded rod 202 rotates to drive the support plate 203 to slide on the support frame 101, so that the support plate 203 drives multiple dial indicators 204 to gradually approach the shaft workpiece on the inner wall of the clamping elastic piece 302, making the thimbles at the bottom ends of the multiple dial indicators 204 vertically contact the surface of the shaft workpiece, and through the sliding of the limit ring 205 inside the support plate 203, the limit ring 205 drives the thimble at the bottom end of the dial indicator 204 to contact the pointer component inside the dial indicator 204, thereby driving the pointer inside the dial indicator 204 to rotate, which can improve the accuracy of the detection data of the dial indicator 204 and reduce the workload of the staff.

[0033] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An axis bending detection device, comprising a device platform (1), characterized in that: One end of the top of the device platform (1) is fixedly connected with a support frame (101). The top of the support frame (101) is fixedly connected with a detection mechanism (2), which penetrates into the interior of the support frame (101) and is slidably connected to one end of the support frame (101). A clamping mechanism (3) is installed and fixed on the top of the device platform (1) and is located below the detection mechanism (2).

2. The shaft bending detection device according to claim 1, wherein: The detection mechanism (2) includes a servo motor (201). The servo motor (201) is installed and fixed on the top of the support frame (101). The bottom end of the servo motor (201) is rotatably connected with a threaded rod (202), which penetrates into the interior of the support frame (101). The outer wall of the threaded rod (202) is sleeved with a support plate (203), which is slidably connected to the interior of the support frame (101) and is located at one end of the support frame (101). A plurality of dial indicators (204) are installed on the top of the support plate (203) and penetrate through the support plate (203) to the bottom end of the support plate (203). The outer wall of the dial indicator (204) is sleeved with a limit ring (205), which is slidably connected to the interior of the support plate (203). The top end of the limit ring (205) is fixedly connected with a telescopic spring (206), which is distributed around the outer wall of the dial indicator (204). Limiting sliders (207) are installed and fixed on both sides of the limit ring (205) and are slidably connected to the interior of the support plate (203).

3. An axial bending detection device according to claim 2, characterized in that: The clamping mechanism (3) includes a fixing plate (301). The fixing plate (301) is installed and fixed on the top of the device platform (1) and is located below the support plate (203). A plurality of clamping elastic pieces (302) are installed and fixed on the top of the fixing plate (301). A control motor (303) is installed and fixed on one side of the fixing plate (301). One side of the control motor (303) is rotatably connected with a connecting shaft (304), which penetrates into the interior of the fixing plate (301). The outer wall of the connecting shaft (304) is sleeved with a support rod (305), which penetrates through the fixing plate (301) to the inner wall of the clamping elastic piece (302). A plurality of friction bumps (306) are arranged on the outer wall of the support rod (305).

4. The shaft bending detection device according to claim 2, wherein: A sliding groove matching the support plate (203) is opened on the inner wall of the support frame (101). An internal thread matching the external thread of the threaded rod (202) is opened on the inner wall of the support plate (203). A thimble is arranged at the bottom end of the dial indicator (204).

5. The shaft bending detection device according to claim 2, characterized in that: A telescopic groove matching the dial indicator (204) is opened in the interior of the support plate (203). A support groove matching the limit ring (205) is opened in the interior of the support plate (203). A limit groove matching the telescopic spring (206) is opened in the interior of the support plate (203).

6. The shaft bending detection device according to claim 3, wherein: A transmission groove matching the connecting shaft (304) is opened in the interior of the fixing plate (301). A clamping groove matching the shaft workpiece is opened on the inner wall of the clamping elastic piece (302). The material of the friction bump (306) is high-friction rubber.

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