Sample fixing device of wear resistance testing machine
The combination of clamping plate and pressing ball fixed device driven by pneumatic cylinder and pneumatic rod solves the problem of sample displacement and shaking during the test of abrasion resistance testing machine, improves the accuracy of test results and adapts to different test requirements.
Patent Information
- Application Number
- CN202422947504.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing abrasion testing machines lack effective clamping and fixing mechanisms, which causes samples to shift or shake during testing, affecting the accuracy of test results and posing a safety threat.
The clamping plate and pressing ball combination fixing device driven by pneumatic cylinder and pneumatic rod ensures that the sample maintains a stable position during the test through dual operation of clamping and pressing. At the same time, the position of the pressing ball can be adjusted to adapt to different test requirements.
It effectively prevents the sample from shifting or shaking during the test due to rotation or friction, ensures uniform friction distribution, improves the accuracy of test results, and facilitates the replacement of the grinding wheel and adaptation to different test requirements.
Smart Images
Figure CN223565402U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wear testing machine technical field, concretely is a kind of wear testing machine sample fixing device. BACKGROUND
[0002] Wear testing machine is an important material performance testing equipment, mainly for evaluating the wear resistance of material under simulated service conditions.
[0003] The existing wear testing machine is mainly composed of shell, placing disc, grinding wheel, rotating mechanism and lifting system, when detecting the wear resistance of sample, first, the sample to be detected is placed on the placing disc, then the grinding wheel is moved down to contact with the surface of sample by the action of lifting system, the rotating mechanism is used to make the placing disc drive sample to rotate, in the testing process, the grinding wheel is rubbed with the surface of sample at a certain speed and pressure under the drive of motor, the friction effect can simulate the wear condition under actual service condition, so as to evaluate the wear resistance of sample.
[0004] The existing wear testing machine lacks effective clamping fixing mechanism, so that sample will be displaced or shaken in the testing process due to the action of rotation or friction, thereby affecting the accuracy of test result, and if sample is not fixed stably in the testing process, it will be thrown off from the testing machine due to the action of rotation or friction, thereby causing safety threat to test personnel, therefore, a kind of wear testing machine sample fixing device is proposed aiming at the above problems. CONTENT OF UTILITY MODEL
[0005] In order to make up for the deficiency of prior art, solve the problems proposed in the above background, the utility model provides a kind of wear testing machine sample fixing device.
[0006] The utility model discloses a technical scheme that solves its technical problem is: The utility model discloses a kind of sample fixing device of abrasion tester, including abrasion tester shell body, control panel is installed on the inclined surface of abrasion tester shell body, placing disc is cooperatively installed on abrasion tester shell body by rotating shaft, three fixed blocks are installed on the placing disc, first pneumatic cylinder is installed on each fixed block, the acting end of first pneumatic cylinder is equipped with first pneumatic rod, the other end of first pneumatic rod is fixedly connected with clamping plate, through groove is set up on abrasion tester shell body, and first pneumatic cylinder rotates through through groove, sliding slot is set up on abrasion tester shell body, and lifting plate is arranged in sliding slot, second pneumatic cylinder is installed on the top side of abrasion tester shell body, the acting end of second pneumatic cylinder is equipped with second pneumatic rod, and the bottom end of second pneumatic rod is fixedly connected on lifting plate, square sleeve is fixedly connected on the two side walls of lifting plate, movable plate is slidably equipped in two square sleeves, fixed column is installed on the bottom side of movable plate, press ball is installed on the bottom end of fixed column, when the abrasion resistance of sample is detected, in order to guarantee that sample keeps stable position in testing process, sample needs to be effectively clamped and fixed, first, the sample to be detected is placed on placing disc, then first pneumatic cylinder is started, so that first pneumatic rod drives clamping plate to approach each other, so as to clamp and fix sample, then second pneumatic cylinder is operated, so that second pneumatic rod drives lifting plate to vertically descend along sliding slot, and then grinding wheel and press ball are synchronously descended, until grinding wheel and press ball are synchronously descended to contact with the surface of sample, through the double operation of clamping and fixing and pressing, so as to effectively fix sample, guarantee the stable position of sample in detection process, prevent displacement or shaking in testing process due to the action of rotation or friction, help to ensure that the friction distribution is uniform in testing process, so as to improve the accuracy of test result.
[0007] Preferably, limit rod grooves are formed in the two square sleeves, a sliding rod is arranged in the limit rod grooves, the bottom end of the sliding rod is fixedly connected to the movable plate, and a locking nut is rotatably assembled on the upper end of the sliding rod through thread cooperation, when using the device, the sliding rod moves in the limit rod groove, and then drives the movable plate to move in the square sleeve, so that the movable plate drives the press ball to move, until the press ball moves to the appropriate position, the sliding rod is fixed through the action of the locking nut, so that the horizontal position of the press ball can be adjusted as needed to ensure that it can accurately act on the specified position on the surface of the sample.
[0008] Preferably, the bottom end of the rotating shaft is sleeved with a first gear, the bottom of the abrasion tester shell is provided with a motor, the output end of the motor is provided with a second gear, and the second gear is meshed with the first gear, when the abrasion resistance detection is carried out, after the sample is clamped and fixed, and the grinding wheel is lowered to contact the surface of the sample, the second gear is rotated through the operation of the motor, so that the first gear is also rotated, and then the rotating shaft drives the placing disc and the clamped and fixed sample to rotate, and in the test process, the grinding wheel is rubbed with the sample surface, the rubbing action can simulate the abrasion condition under the actual use condition, so that the abrasion resistance of the sample is evaluated.
[0009] Preferably, the bottom side of the lifting plate is fixedly connected with a circular sleeve, a grinding wheel is clamped in the circular sleeve, two clamping grooves are formed in the circular sleeve, an insertion rod is arranged in the circular sleeve, recesses are clamped on the two sides of the insertion rod, springs are arranged in the two recesses, and clamping blocks are fixedly connected to the other ends of the springs and matched with the clamping grooves, when the grinding wheel is installed, the insertion rod is inserted into the circular sleeve, and the clamping blocks on the insertion rod are automatically clamped into the clamping grooves in the circular sleeve under the action of the springs, so that the grinding wheel is fixed, and when the grinding wheel needs to be disassembled, the insertion rod can be pulled out of the circular sleeve, so that the grinding wheel is convenient to replace, and the grinding wheel specifications and material requirements under different test requirements can be adapted.
[0010] The abrasion tester has the advantages that:
[0011] 1. When the abrasion resistance of the sample is detected, in order to ensure that the sample maintains a stable position in the test process, the sample needs to be effectively clamped and fixed, the sample to be detected is placed on the placing disc, the first pneumatic cylinder is started, the first pneumatic rod drives the clamping plates to move close to each other, so that the sample can be clamped and fixed, then the second pneumatic cylinder is operated, the second pneumatic rod drives the lifting plate to vertically move downwards along the sliding groove, and then the grinding wheel and the pressing ball move downwards synchronously until the grinding wheel and the pressing ball move downwards synchronously to contact the surface of the sample, so that the sample can be effectively fixed through the double operations of clamping and pressing, the stable position of the sample in the detection process is ensured, displacement or shaking of the sample in the test process due to rotation or friction is prevented, the uniform distribution of the friction in the test process is facilitated, and the accuracy of the test result is improved.
[0012] 2. When the grinding wheel is installed, the insertion rod is inserted into the circular sleeve, the clamping blocks on the insertion rod are automatically clamped into the clamping grooves in the circular sleeve under the action of the springs, so that the grinding wheel is fixed, when the grinding wheel needs to be disassembled, the insertion rod can be pulled out of the circular sleeve, so that the grinding wheel is convenient to replace, and the grinding wheel specifications and material requirements under different test requirements can be adapted. BRIEF DESCRIPTION OF DRAWINGS
[0013] 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 needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0014] Figure 1 It is a whole front view of the structure of the device.
[0015] Figure 2 It is a cross-sectional view of the structure of the shell of the abrasion tester.
[0016] Figure 3 It is a three-dimensional structure diagram of the clamping mechanism.
[0017] Figure 4 It is a three-dimensional structure diagram of the pressing mechanism and the grinding wheel assembly.
[0018] Figure 5 It is a three-dimensional structure diagram of the clamping mechanism.
[0019] In the figure: 1, the shell of the abrasion tester; 2, the rotating shaft; 3, the placing disc; 4, the first gear; 5, the motor; 6, the second gear; 7, the fixed block; 8, the first pneumatic cylinder; 9, the first pneumatic rod; 10, the clamping plate; 11, the through slot; 12, the sliding groove; 13, the lifting plate; 14, the second pneumatic cylinder; 15, the circular sleeve; 16, the grinding wheel; 17, the square sleeve; 18, the movable plate; 19, the fixed column; 20, the pressing ball; 21, the limiting rod slot; 22, the sliding rod; 23, the locking nut; 24, the clamping groove; 25, the insertion rod; 26, the groove; 27, the spring; 28, the clamping block; 29, the control panel. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0021] Please refer to Figures 1-4As shown, a kind of abrasion tester sample fixing device, it includes abrasion tester shell 1, control panel 29 is installed on the inclined surface of abrasion tester shell 1, and placing disc 3 is cooperatively installed on abrasion tester shell 1 by rotating shaft 2, three fixing blocks 7 are installed on placing disc 3, first pneumatic cylinder 8 is installed on each fixing block 7, first pneumatic rod 9 is assembled on the acting end of first pneumatic cylinder 8, clamping plate 10 is fixed on the other end of first pneumatic rod 9, through slot 11 is set on abrasion tester shell 1, and first pneumatic cylinder 8 rotates through through slot 11, sliding slot 12 is set on abrasion tester shell 1, lifting plate 13 is arranged in sliding slot 12, second pneumatic cylinder 14 is installed on the top side of abrasion tester shell 1, second pneumatic rod is assembled on the acting end of second pneumatic cylinder 14, and the bottom end of second pneumatic rod is fixed on lifting plate 13, square sleeve 17 is fixed on the two side walls of lifting plate 13, movable plate 18 is slidably assembled in two square sleeves 17, fixed column 19 is installed on the bottom side of movable plate 18, and pressing ball 20 is installed on the bottom end of fixed column 19;When the abrasion resistance of sample is detected, in order to ensure that the sample keeps stable position during testing, the sample needs to be effectively clamped and fixed, first, the sample to be detected is placed on placing disc 3, then first pneumatic cylinder 8 is started, first pneumatic rod 9 drives clamping plate 10 to approach each other, so that the sample can be clamped and fixed, then second pneumatic cylinder 14 is operated, second pneumatic rod drives lifting plate 13 to vertically move along sliding slot 12, so that grinding wheel 16 and pressing ball 20 move synchronously, until grinding wheel 16 and pressing ball 20 move synchronously to contact the surface of sample, through the double operation of clamping and pressing, the sample can be effectively fixed, the stable position of sample during detection is ensured, displacement or shaking during testing due to rotation or friction is prevented, which helps to ensure uniform friction distribution during testing, so as to improve the accuracy of test results;
[0022] Limiting rod groove 21 is set on two square sleeves 17, sliding rod 22 is arranged in limiting rod groove 21, the bottom end of sliding rod 22 is fixed on movable plate 18, and lock nut 23 is rotatably assembled on the upper end of sliding rod 22 by thread cooperation;When the device is used, sliding rod 22 moves in limiting rod groove 21, then movable plate 18 moves in square sleeve 17, movable plate 18 drives pressing ball 20 to move, until pressing ball 20 moves to appropriate position, sliding rod 22 is fixed by the action of lock nut 23, so that the horizontal position of pressing ball 20 can be adjusted as needed, to ensure that it can accurately act on the specified position on the surface of sample;
[0023] The bottom end of the rotating shaft 2 is sleeved with a first gear 4, the bottom of the abrasion tester shell 1 is provided with a motor 5, the output end of the motor 5 is provided with a second gear 6, and the second gear 6 is meshed with the first gear 4; when the abrasion resistance is detected, after the sample is clamped and fixed, and the grinding wheel 16 is lowered to be in contact with the surface of the sample, the second gear 6 is rotated through the operation of the motor 5, so that the first gear 4 is also rotated, and then the rotating shaft 2 drives the sample placed on the disc 3 to rotate, and in the test process, the grinding wheel 16 is rubbed with the surface of the sample, the friction can simulate the abrasion under the actual use condition, so that the abrasion resistance of the sample is evaluated.
[0024] Please refer to Figure 5 As shown in the drawings, the bottom side of the lifting plate 13 is fixedly connected with a circular sleeve 15, the circular sleeve 15 is provided with a grinding wheel 16, two clamping grooves 24 are formed in the circular sleeve 15, a plug rod 25 is arranged in the circular sleeve 15, recesses 26 are arranged on the two sides of the plug rod 25, springs 27 are arranged in the two recesses 26, clamping blocks 28 are fixed to the other ends of the springs 27, and the clamping grooves 24 are matched with the clamping blocks 28; when the grinding wheel 16 is installed, the plug rod 25 is inserted into the circular sleeve 15, the clamping blocks 28 on the plug rod 25 are automatically clamped into the clamping grooves 24 in the circular sleeve 15 under the action of the springs 27, so that the grinding wheel 16 is fixed, when the grinding wheel 16 needs to be disassembled, the plug rod 25 is pulled out from the circular sleeve 15, so that the grinding wheel 16 is convenient to replace, and the grinding wheel 16 can adapt to the requirements of different specifications and materials.
[0025] Working principle: due to the existing wear tester, lack of effective clamping fixing mechanism, resulting in sample in the test process will be because of the rotation or friction and produce displacement or shaking, thereby affecting the accuracy of test results, and the sample in the test process if not stable, will because of the rotation or friction and throw off the test machine, thereby causing a safety threat to the test personnel;Therefore, aiming at the above problems, a kind of wear tester sample fixing device is proposed;When the wear resistance of the sample is detected, in order to ensure that the sample keeps stable position during the test process, the sample needs to be effectively clamped and fixed, first, the sample to be detected is placed on the placing disc 3, then the first pneumatic cylinder 8 is started, the first pneumatic rod 9 drives the clamping plate 10 to approach each other, so as to clamp and fix the sample, then the second pneumatic cylinder 14 is operated, the second pneumatic rod drives the lifting plate 13 to vertically move down along the sliding groove 12, and then the grinding wheel 16 and the pressing ball 20 move down synchronously until the grinding wheel 16 and the pressing ball 20 move down to the surface of the sample, through the double operation of clamping and pressing, the sample can be effectively fixed, the stable position of the sample during the detection process is ensured, the displacement or shaking caused by rotation or friction during the test process is prevented, which helps to ensure the uniform distribution of friction during the test process, thereby improving the accuracy of test results;
[0026] After the sample is clamped and fixed, and the grinding wheel 16 moves down to contact the surface of the sample, when the wear resistance is detected, the motor 5 is operated to make the second gear 6 rotate, forcing the first gear 4 to rotate, and then the rotating shaft 2 drives the placing disc 3 and the clamped and fixed sample to rotate, and in the test process, the grinding wheel 16 and the surface of the sample are rubbed, and this rubbing action can simulate the wear condition under actual use condition, so as to evaluate the wear resistance of the sample.
[0027] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0028] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.
Claims
1. A sample fixture for a wear testing machine, characterized by: The utility model provides a wear testing machine, including wear testing machine shell (1), the inclined surface of wear testing machine shell (1) is installed with control panel (29), wear testing machine shell (1) is installed with the placement tray (3) on through the cooperation of rotating shaft (2), the placement tray (3) is installed with three fixed blocks (7), each fixed block (7) is installed with first pneumatic cylinder (8), the acting end of first pneumatic cylinder (8) is equipped with first pneumatic rod (9), the other end of first pneumatic rod (9) is fixedly connected with clamping plate (10), wear testing machine shell (1) is seted up with through slot (11), and first pneumatic cylinder (8) rotates through through slot (11), wear testing machine shell (1) is seted up with sliding slot (12), and sliding slot (12) is provided with lifting plate (13), the top side of wear testing machine shell (1) is installed with second pneumatic cylinder (14), the acting end of second pneumatic cylinder (14) is equipped with second pneumatic rod, and the bottom of second pneumatic rod is fixedly connected on lifting plate (13), both side walls of lifting plate (13) are fixedly connected with square sleeve (17), two square sleeve (17) are slidably equipped with movable plate (18), the bottom side of movable plate (18) is installed with fixed column (19), and the bottom of fixed column (19) is installed with pressing ball (20).
2. A sample holder for a wear testing machine according to claim 1, characterized in that: Two square sleeve (17) are seted up with limiting rod groove (21), and limiting rod groove (21) is provided with sliding rod (22), the bottom of sliding rod (22) is fixedly connected on movable plate (18), and the upper end of sliding rod (22) is rotatably equipped with locking nut (23) through the cooperation of screw thread.
3. A sample holder for a wear testing machine according to claim 1, wherein: The bottom of rotating shaft (2) is sleeved with first gear (4), and the bottom of wear testing machine shell (1) is installed with motor (5), and the output end of motor (5) is installed with second gear (6), and second gear (6) and first gear (4) are engaged with each other.
4. A sample holder for a wear testing machine according to claim 1, characterized in that: The bottom of lifting plate (13) is fixedly connected with circular sleeve (15), and circular sleeve (15) is clamped with grinding wheel (16).
5. A sample holder for a wear testing machine according to claim 4, wherein: Two clamping grooves (24) are seted up in circular sleeve (15), and circular sleeve (15) is provided with inserting rod (25), and both sides of inserting rod (25) are clamped with recess (26).
6. A sample holder for a wear testing machine according to claim 5, wherein: Two recesses (26) are provided with spring (27), and the other end of spring (27) is fixedly connected with clamping block (28), and clamping groove (24) and clamping block (28) are matched.