Special-shaped magnet measuring device

Abstract

The utility model discloses a measuring device for a special-shaped magnet, which belongs to the technical field of magnet suction force measurement and comprises a test board, a tension meter is mounted on one side of the upper end of the test board and comprises a shell, an extension rod is slidably connected into the shell, and a connecting plate is connected to the tail end, close to the interior of the tension meter, of the extension rod. Springs are arranged on the outer walls, located in the shell, of the connecting plate and the extension rod, a second threaded rod is in threaded connection with the end, away from the iron block, of the shell, a rotating handle is detachably connected to the end, located outside the shell, of the second threaded rod, and the second threaded rod rotates to move towards the interior of the shell through rotation of the arranged rotating handle. The extension rod is pushed to move outwards and compress the spring, the pulling force needed by the extension rod to move outwards at the moment is determined through the scales on the surface of the extension rod, then adjustment can be carried out after the approximate suction force range of the test magnet is determined, the stroke needed by the movement test of the tension meter is reduced, the test time can be shortened, and the test efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnet attraction measurement, in particular to a measurement device for special-shaped magnets. Background Art

[0002] At present, the magnet manufacturing and processing industry often needs to test the basic mechanical parameters such as the magnetic attraction of samples in order to screen and detect whether the products are qualified. There are various types of testing tools, including direct measurement and indirect measurement, but their accuracy is often unsatisfactory. The more common suction test method in the industry is to use a magnet to directly suck up an iron block. The maximum weight of the iron block that can be sucked up is the maximum adsorption force of the magnet.

[0003] With the development of science and technology, the existing suction force measuring devices have gradually improved. For example, China Utility Model Patent CN207114065U discloses a magnet suction force measuring device. Through the magnet suction force measuring device, the iron block is adsorbed on the magnet. Under the ultra-slow uniform rotation of the turntable, when the pulling force of the traction rope is greater than the adsorption force between the magnet and the iron block, the iron block is pulled away from the magnet. At this time, the peak reading on the push-pull force gauge is the suction force of the magnet. The test process is very simple to operate and will not be affected by differences in operators. The stability is very good. The push-pull force gauge readings are highly sensitive and the test results are highly accurate. Multiple repeated measurements can be used to calculate the average to reduce the error, thereby making the test results more accurate.

[0004] Although the above-mentioned prior art can more conveniently measure the suction force of the magnet, during long-term measurement, the tester can probably judge the size of the suction force by the appearance, and each test must be conducted from the lowest tension to the maximum tension, which makes the test process longer. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A measuring device for special-shaped magnets includes a test bench, a dynamometer is installed on one side of the upper end of the test bench, a clamping plate is installed on the other side, a magnet is placed below the clamping plate, the dynamometer includes a shell, an extension rod is slidably connected to the inside of the shell, the end of the extension rod close to the inside of the dynamometer is connected to a connecting plate, springs are provided on the outer walls of the connecting plate and the extension rod located inside the shell, an iron block is connected to the end of the extension rod, a second threaded rod is threadedly connected to the end of the shell away from the iron block, a rotating handle is detachably connected to one end of the second threaded rod located outside the shell, and the rotating handle is turned to move the second threaded rod toward the inside of the dynamometer, thereby contracting the spring.

[0008] Preferably, the outer wall of the extension rod is provided with a scale, and the extension length of the extension rod is matched with the scale to read the tension.

[0009] Preferably, a third sliding groove is provided on one side of the upper end of the test bench, and the third sliding groove is rotatably connected to the inside of the first threaded rod, and a driving motor is detachably connected to an outer wall of one side of the test bench. The rotating end of the driving motor is inserted into the inside of the third sliding groove and is detachably connected to one end of the first threaded rod, and a first sliding block is fixedly connected to the bottom of the outer shell, and the first sliding block is inserted into the inside of the third sliding groove and is threadably connected to the first threaded rod. The rotation of the driving motor drives the first threaded rod to rotate, and then cooperates with the first sliding block to move the outer shell to the side away from the magnet.

[0010] Preferably, a second sliding groove is provided on one side of the upper end of the test bench, and the interior of the second sliding groove is slidably connected to a bottom support plate, and a first electric telescopic rod is installed at the bottom of the test bench, and the telescopic end of the first electric telescopic rod is inserted into the interior of the second sliding groove and connected to the bottom support plate. The extension and retraction of the first electric telescopic rod enables the bottom support plate to move upward or downward inside the second sliding groove, so that when the magnet is placed inside the second sliding groove, its upper end can extend beyond the interior of the second sliding groove and contact the iron block to adsorb and cooperate with the clamping plate to limit the magnet.

[0011] Preferably, a first sliding groove is provided on one side of the second sliding groove, a plug-in plate is slidably connected inside the first sliding groove, the upper end of the plug-in plate is connected to the clamping plate, a second electric telescopic rod is installed at the bottom of the test bench, the telescopic end of the second electric telescopic rod is inserted into the interior of the first sliding groove and connected to the bottom of the plug-in plate, the extension and retraction of the second electric telescopic rod causes the clamping plate to press on the upper end of the magnet to cooperate with the inner wall of the second sliding groove to limit the magnet.

[0012] Preferably, a fourth sliding groove is provided on the plug-in board, the interior of the fourth sliding groove is slidingly connected to the second sliding block, the interior of the second sliding block is threadedly connected to the third threaded rod, one end of the third threaded rod faces the magnet and is detachably connected to a rubber block, and the third threaded rod is rotated so that the rubber block contacts the outside of the special-shaped magnet.

[0013] Preferably, one end of the second sliding block exceeds the rubber block and abuts against the upper end of the test bench, and the second sliding block is always located at the upper end of the test bench when the plug board moves up and down.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The second threaded rod is rotated to move toward the inside of the housing by rotating the rotating handle, thereby pushing the extension rod to move outward and compressing the spring. The pulling force required for the extension rod to move outward at this time is determined by the scale on the surface of the extension rod, and then the adjustment can be made after determining the approximate suction range of the test magnet, thereby reducing the travel required for the dynamometer to move the test, thereby shortening the test time and improving the test efficiency;

[0016] 2. The driving motor is set to rotate to drive the first threaded rod to rotate, and then cooperate with the first sliding block to move the housing to the side away from the magnet. The scale of the extended position of the extension rod at the magnet drop position is observed by adsorption of the iron block and the magnet as the suction value of the magnet;

[0017] 3. The bottom support plate is moved upward or downward inside the second sliding groove by the extension and retraction of the first electric telescopic rod, so that when the magnet is placed inside the second sliding groove, its upper end is beyond the second sliding groove and is in contact with the iron block for adsorption. The pressing plate is pressed on the upper end of the magnet by the extension and retraction of the second electric telescopic rod to cooperate with the inner wall of the second sliding groove to limit the magnet, so that the magnet can be fixed;

[0018] 4. The third threaded rod is rotated to make the rubber block contact the outside of the special-shaped magnet, and the special-shaped magnet is fixed by the downward pressure of the clamping plate and the upward thrust of the bottom support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a measuring device for a special-shaped magnet in the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the test bench in the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the dynamometer in the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the dynamometer in the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the pressing plate and the bottom supporting plate in the utility model.

[0024] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0025] 100, test bench; 101, first sliding slot; 102, second sliding slot; 103, third sliding slot; 104, first threaded rod; 105, drive motor;

[0026] 200, dynamometer; 201, housing; 202, first sliding block; 203, iron block; 204, extension rod; 205, spring; 206, connecting plate; 207, second threaded rod; 208, rotating handle;

[0027] 300, pressing plate; 301, plug-in plate; 302, fourth sliding groove; 303, second sliding block; 304, third threaded rod; 305, rubber block; 306, bottom support plate; 307, first electric telescopic rod; 308, second electric telescopic rod. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0031] like Figure 1 As shown, it is a schematic diagram of the structure of a measuring device for a special-shaped magnet according to a preferred embodiment of the utility model. The measuring device for the special-shaped magnet in this embodiment includes a test bench 100, and a dynamometer 200 is slidably connected to the upper end of the test bench 100, and a clamping plate 300 for clamping the magnet is slidably connected to the other side of the upper end of the test bench 100, and the clamping plate 300 moves downward to fix the magnet.

[0032] like Figure 2 as well as Figure 3As shown, it is a schematic diagram of the test bench and the tensile meter structure in this embodiment. A third sliding groove 103 is provided on one side of the upper end of the test bench 100. The third sliding groove 103 is rotatably connected to the first threaded rod 104. A driving motor 105 is detachably connected to the outer wall of one side of the test bench 100. The rotating end of the driving motor 105 is inserted into the third sliding groove 103 and is detachably connected to one end of the first threaded rod 104. The tensile meter 200 includes a housing 201. The bottom of the housing 201 is fixedly connected to a first sliding block 202. The first sliding block 202 is fixedly connected to the first sliding block 202. 02 is inserted into the interior of the third sliding groove 103 and is threadedly connected to the first threaded rod 104. The interior of the shell 201 is slidably connected with an extension rod 204. The end of the extension rod 204 is detachably connected to the iron block 203. The outer wall of the extension rod 204 is provided with a scale. The driving motor 105 rotates to drive the first threaded rod 104 to rotate and then cooperates with the first sliding block 202 to move the shell 201 to the side away from the magnet. The scale of the extension position of the extension rod 204 at the magnet falling position observed by the adsorption of the iron block 203 and the magnet is the suction value of the magnet.

[0033] like Figure 4 As shown, it is a schematic diagram of the cross-sectional structure of the tensile gauge in this embodiment, the end of the extension rod 204 located inside the shell 201 is fixedly connected to a connecting plate 206, and a spring 205 is arranged between the connecting plate 206 and the inner part of the shell 201 near the iron block 203. When the tensile gauge 200 moves, the extension rod 204 is extended outward and the spring 205 is compressed by the suction force of the magnet. After the maximum value of the suction force of the test magnet is reached, the iron block 203 is separated from the magnet and the extension rod 204 is reset by the spring 205. In order to test the suction force of the magnet more conveniently, in this embodiment, the end of the shell 201 away from the iron block 203 is threadedly connected to a second threaded rod 207 The end of the second threaded rod 207 inserted into the shell 201 is fitted with the outer wall of the connecting plate 206, and the end of the second threaded rod 207 is fixedly connected with a rotating handle 208. In this embodiment, the rotating handle 208 is rotated to rotate the second threaded rod 207 to move toward the inside of the shell 201, thereby pushing the extension rod 204 to move outward and compressing the spring 205. The pulling force required for the extension rod 204 to move outward at this time is determined by the scale on the surface of the extension rod 204, and then it can be adjusted after determining the approximate suction range of the test magnet, thereby reducing the travel required for the dynamometer 200 to move the test, thereby shortening the test time and improving the test efficiency.

[0034] like Figure 2As shown in Figure 5, it is a schematic diagram of the test bench, the clamping plate and the bottom support plate structure in this embodiment. A second sliding groove 102 is provided on one side of the upper end of the test bench 100, and a first sliding groove 101 is provided on one side of the second sliding groove 102. The bottom of the second sliding groove 102 is slidably connected to the bottom support plate 306. A first electric telescopic rod 307 is installed at the bottom of the test bench 100. The telescopic end of the first electric telescopic rod 307 is inserted into the interior of the second sliding groove 102 and connected to the bottom support plate 306. The interior of the first sliding groove 101 is slidably connected to the plug-in board 301. The upper end of the plug-in board 301 is connected to the clamping plate 300. A second electric telescopic rod 308 is installed at the bottom of the test bench 100. The telescopic end of the second electric telescopic rod 308 is inserted into the interior of the first sliding groove 101 and connected to the bottom of the plug-in board 301. In this embodiment, the telescopic movement of the first electric telescopic rod 307 causes the bottom support plate 306 to move upward or downward in the second sliding groove 102, so that the magnet can be placed in the second sliding groove 10 2, the upper end of the magnet exceeds the inner part of the second sliding groove 102 and contacts and absorbs the iron block 203. The second electric telescopic rod 308 is extended and retracted to make the pressing plate 300 press on the upper end of the magnet to cooperate with the inner wall of the second sliding groove 102 to limit the magnet, so that the magnet can be fixed. In order to make the special-shaped magnet more stable when installing, in this embodiment, a fourth sliding groove 302 is provided on the plug-in board 301, and the inner part of the fourth sliding groove 302 is slidably connected to the second sliding block 303. The second sliding block 30 3 extends beyond the rubber block 305 and abuts against the upper end of the test bench 100, so that the position of the second sliding block 303 remains unchanged when the plug-in board 301 moves up and down, the inner thread of the second sliding block 303 is connected to the third threaded rod 304, one end of the third threaded rod 304 faces the magnet and is detachably connected to the rubber block 305, the third threaded rod 304 is rotated to make the rubber block 305 contact the outside of the special-shaped magnet, and the downward pressure of the clamping plate 300 and the upward thrust of the bottom support plate 306 fix the special-shaped magnet.

[0035] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A device for measuring a special-shaped magnet, comprising a test bench (100), a dynamometer (200) being installed on one side of the upper end of the test bench (100), and a clamping plate (300) being installed on the other side, and a magnet being placed below the clamping plate (300), characterized in that: The dynamometer (200) comprises a shell (201), the interior of which is slidably connected to a protruding rod (204), the end of the protruding rod (204) close to the interior of the dynamometer (200) is connected to a connecting plate (206), the outer wall of the connecting plate (206) and the protruding rod (204) located inside the shell (201) is provided with a spring (205), the end of the protruding rod (204) is connected to an iron block (203), the end of the shell (201) away from the iron block (203) is threadedly connected to a second threaded rod (207), one end of the second threaded rod (207) located outside the shell (201) is detachably connected to a rotating handle (208), and rotating the rotating handle (208) causes the second threaded rod (207) to move toward the interior of the dynamometer (200) so as to contract the spring (205).

2. The measuring device for special-shaped magnets according to claim 1, characterized in that: The outer wall of the extension rod (204) is provided with a scale, and the extension length of the extension rod (204) is matched with the scale to read the tension.

3. The measuring device for special-shaped magnets according to claim 2, characterized in that: A third sliding groove (103) is provided on one side of the upper end of the test bench (100), and the interior of the third sliding groove (103) is rotatably connected to a first threaded rod (104). A driving motor (105) is detachably connected to an outer wall of one side of the test bench (100), and a rotating end of the driving motor (105) is inserted into the interior of the third sliding groove (103) and detachably connected to one end of the first threaded rod (104). A first sliding block (202) is fixedly connected to the bottom of the housing (201), and the first sliding block (202) is inserted into the interior of the third sliding groove (103) and is threadably connected to the first threaded rod (104). The driving motor (105) rotates to drive the first threaded rod (104) to rotate, and then cooperates with the first sliding block (202) to move the housing (201) to a side away from the magnet.

4. The measuring device for special-shaped magnets according to claim 3, characterized in that: A second sliding groove (102) is arranged on one side of the upper end of the test bench (100), and a bottom support plate (306) is slidably connected inside the second sliding groove (102). A first electric telescopic rod (307) is installed at the bottom of the test bench (100), and the telescopic end of the first electric telescopic rod (307) is inserted into the second sliding groove (102) and connected to the bottom support plate (306). The telescopic movement of the first electric telescopic rod (307) enables the bottom support plate (306) to move upward or downward inside the second sliding groove (102), so that when a magnet is placed inside the second sliding groove (102), its upper end can extend beyond the second sliding groove (102) and contact with the iron block (203) to adsorb and cooperate with the clamping plate (300) to limit the magnet.

5. The measuring device for special-shaped magnets according to claim 4, characterized in that: A first sliding groove (101) is provided on one side of the second sliding groove (102), a plug board (301) is slidably connected inside the first sliding groove (101), an upper end of the plug board (301) is connected to a clamping plate (300), a second electric telescopic rod (308) is installed at the bottom of the test bench (100), a telescopic end of the second electric telescopic rod (308) is inserted into the first sliding groove (101) and connected to the bottom of the plug board (301), and the extension and retraction of the second electric telescopic rod (308) causes the clamping plate (300) to press on the upper end of the magnet to cooperate with the inner wall of the second sliding groove (102) to limit the magnet.

6. The measuring device for special-shaped magnets according to claim 5, characterized in that: The plug board (301) is provided with a fourth sliding groove (302), the interior of the fourth sliding groove (302) is slidably connected to a second sliding block (303), the interior of the second sliding block (303) is threadedly connected to a third threaded rod (304), one end of the third threaded rod (304) faces the magnet and is detachably connected to a rubber block (305), and the third threaded rod (304) is rotated so that the rubber block (305) contacts the outside of the special-shaped magnet.

7. The measuring device for special-shaped magnets according to claim 6, characterized in that: One end of the second sliding block (303) exceeds the rubber block (305) and abuts against the upper end of the test bench (100). When the plug board (301) moves up and down, the second sliding block (303) is always located at the upper end of the test bench (100).

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