Magnetic material shearing force tester

Abstract

The utility model relates to the field of shearing force testing instruments, and discloses a magnetic material shearing force tester. The device comprises a stand column support, a transmission mechanism arranged in the stand column support and a pressing cutter, a maintenance opening communicated with the interior of the stand column support is formed in one side of the stand column support, the transmission mechanism and the pressing cutter are both located in the range of the maintenance opening, the transmission mechanism is detachably and movably installed in the stand column support, and the pressing cutter is detachably connected with the transmission mechanism. When the transmission mechanism moves, the pressing cutter can be driven to move so as to shear the to-be-tested magnetic material. According to the utility model, the convenience in maintenance and repair is improved, the cost for replacing parts when equipment fails is greatly reduced, and the working efficiency is improved; the micrometer head can drive the to-be-tested magnetic material to move a tiny distance, so that the shearing accuracy of the pressing cutter on the to-be-tested magnetic material is improved, and the test result is more accurate; and to-be-tested magnetic materials with different specifications and sizes can be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of shear force testing instruments, in particular to a magnetic material shear force testing instrument. Background Art

[0002] The magnetic shear force tester is primarily used to test the magnetic properties of magnetic materials. It consists of an operating platform, a column mounted on top of the platform, a transmission device installed inside the column, and a pressure cutter connected to the transmission device. During the test, two mutually adsorbed magnetic materials, or a magnetic material adsorbed on a ferrous material, are placed on top of the operating platform. The transmission device then drives the pressure cutter down to separate the two adsorbed magnetic materials or the magnetic material adsorbed on the ferrous material, thereby testing the shear force of the magnetic materials.

[0003] In the prior art, the column is bolted to the operating base, with some sensors and other electronic components installed inside the column. If the transmission device, sensor, or electronic components are damaged and need to be repaired or replaced, the entire column must be removed from the operating base and then the transmission device and other components inside the column, making maintenance and repair inconvenient. Utility Model Content

[0004] In order to solve at least one aspect of the above problems, the utility model provides a magnetic material shear force tester, including a column bracket, a transmission mechanism and a pressing knife arranged in the column bracket. A maintenance opening is provided on one side of the column bracket, and the maintenance opening is connected to the interior of the column bracket. The transmission mechanism is detachable and movably installed in the column bracket. The pressing knife is detachably connected to the transmission mechanism. When the transmission mechanism moves, it can drive the pressing knife to move to shear the magnetic material to be tested.

[0005] Optionally, a dust cover is provided at the maintenance opening, and the dust cover is detachably connected to the column bracket.

[0006] Optionally, a top drive is further included, wherein the top drive is installed on the top of the column support, and the top drive is connected to the transmission mechanism to drive the transmission mechanism to move.

[0007] Optionally, an operation console is further included, the column bracket is connected to the top of the operation console, and the operation console or the column bracket is provided with a precision pressure regulating valve, which is used to adjust the pressure value of the pressure knife during shearing.

[0008] Optionally, the transmission mechanism includes a guide rail and a lifting plate group, the guide rail is installed inside the column bracket, and the lifting plate group is slidably installed on the guide rail.

[0009] Optionally, the lifting plate group includes a first lifting plate, a second lifting plate and a connecting plate that are slidingly connected to the guide rail, the first lifting plate is located on a side of the second lifting plate away from the operation console, the first lifting plate and the second lifting plate are arranged at intervals, one side of the connecting plate is fixedly connected or movably connected to the first lifting plate, and the other side is movably connected or fixedly connected to the second lifting plate, the first lifting plate or the second lifting plate is provided with a pressure sensor, the pressure sensor is located between the first lifting plate and the second lifting plate, the pressing knife is detachably connected to the second lifting plate, when the pressing knife shears the magnetic material to be tested, the first lifting plate and the second lifting plate squeeze the pressure sensor, when the pressing knife does not contact the magnetic material to be tested, the first lifting plate and the second lifting plate do not squeeze the pressure sensor.

[0010] Optionally, the operation console or the column bracket is connected to a magnetic material placement plate, the magnetic material placement plate is located below the pressing knife, and the magnetic material to be tested is placed on the magnetic material placement plate.

[0011] Optionally, a push plate is slidably installed on the magnetic material placement plate, and after the push plate moves, it can drive the magnetic material to be tested to move to the edge of the magnetic material placement plate in a cantilevered shape.

[0012] Optionally, the operation console or the column bracket or the magnetic material placement plate is provided with a differential head for driving the push plate to move, and the differential head can drive the push plate to move a small distance to test thinner magnetic materials.

[0013] Optionally, the operation console or the column bracket is installed with a clamping mechanism, and the clamping mechanism presses the magnetic material or iron object that is attracted to the magnetic material to be tested onto the magnetic material placement plate.

[0014] Compared with the prior art, the beneficial technical effects of the present invention are:

[0015] 1. When maintaining or repairing the transmission mechanism, press knife and pressure sensor, you only need to open the dust cover. The transmission mechanism, press knife and pressure sensor will be directly exposed within the range of the maintenance opening. Then, you only need to remove the parts that need maintenance or repair separately. There is no need to remove the entire column bracket first and then remove the corresponding parts. This improves the convenience of maintenance and repair, greatly reduces the cost of replacing parts when equipment fails, and improves work efficiency.

[0016] 2. The top drive is directly installed on the top of the column bracket in an exposed state, which makes it more convenient to maintain or repair the top drive. In addition, the setting of the guide rail can make the lifting plate group more stable and more precise when moving. The setting of the dust cover can prevent dust in the air from entering the transmission mechanism, the press knife and the pressure sensor to affect their accuracy and sensitivity.

[0017] 3. When the pressure cutter contacts the magnetic material to be tested and shears it, the pressure sensor will be squeezed by the first lifting plate and the second lifting plate, and then collect the shear force applied by the pressure cutter to the magnetic material to be tested at this time, so as to improve the accuracy of the test data. In addition, the pressure cutter and the connecting plate are both located on the side of the second lifting plate close to the maintenance opening, which is more convenient for subsequent maintenance and disassembly;

[0018] 4. When the thickness of the magnetic material to be tested is relatively thin, the differential head can be used to push the magnetic material a small distance to make it protrude from the magnetic material placement plate and position its current state, thereby increasing the accuracy of the shearing of the magnetic material by the press knife and making the test results more accurate.

[0019] 5. When the magnetic material to be measured is driven to move to the overhang state, the measuring rod on the differential head is adjusted to move. The measuring rod pushes the push plate to move, and the push plate drives the magnetic material to be measured to move. Since the width of the push plate is greater than the outer diameter of the measuring rod, magnetic materials of different sizes can be stably pushed by the push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of the column bracket and the dust cover in the embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of the column bracket and the transmission mechanism in the embodiment of the present utility model;

[0022] Figure 3 This is an exploded view of the transmission mechanism in the embodiment of the present utility model;

[0023] Figure 4 This is an exploded view of the first lifting plate and the second lifting plate in the embodiment of the present utility model;

[0024] Figure 5 This is a diagram showing the coordination structure of the operating console, magnetic material placement plate, push plate, micrometer head and clamping mechanism in an embodiment of the present utility model;

[0025] Figure 6 This is a diagram of the coordination structure of the magnetic material placement plate, push plate, micrometer head and clamping mechanism in an embodiment of the present utility model.

[0026] Explanation of the accompanying drawings: 1. Column bracket; 11. Maintenance opening; 12. Dust cover; 2. Transmission mechanism; 21. Guide rail; 22. Lifting plate group; 23. First slider; 24. Second slider; 25. First lifting plate; 251. Positioning pin; 26. Second lifting plate; 27. Connecting plate; 271. Pin hole; 28. Pressure sensor; 3. Press knife; 4. Top drive; 5. Operation console; 51. Display screen; 52. Precision pressure regulating valve; 53. Carrying platform; 54. Magnetic material placement plate; 55. Push plate; 56. Differential head; 57. Clamping mechanism; 571. Lifting cylinder; 572. Lifting rod; 573. Lower pressure strip. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the position or location relationship of the product during normal use.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0030] The following is combined with Figure 1-6 This application is described in further detail.

[0031] The present invention provides a magnetic material shear force tester. Figure 1 The magnetic material shear force tester includes a column bracket 1, a transmission mechanism 2, a pressure knife 3, a top drive component 4 and an operating console 5. The transmission mechanism 2 and the pressure knife 3 are both arranged inside the column bracket 1. The transmission mechanism 2 is detachable and movably installed in the column bracket 1, and the pressure knife 3 is detachably connected to the transmission mechanism 2. The top drive component 4 is installed on the top of the column bracket 1 to drive the transmission mechanism 2 to reciprocate in the vertical direction. When the transmission mechanism 2 moves, it can drive the pressure knife 3 to move to shear the magnetic material to be tested. The column bracket 1 is installed on the top of the operating console 5. A maintenance opening 11 is provided on one side of the column bracket 1. The maintenance opening 11 is connected to the inside of the column bracket 1. A dust cover 12 is provided at the maintenance opening 11, and the dust cover 12 is detachably connected to the column bracket 1. When maintaining or repairing the components inside the column bracket 1, it is only necessary to remove the dust cover 12.

[0032] The column bracket 1 consists of two symmetrically spaced side panels, a middle panel located between the side panels, and a top panel. The middle panel extends vertically, with its ends abutting the side panels. The middle panel and the side panels are bolted together, and the transmission mechanism 2 is mounted on the middle panel. The top panel sits atop the middle panel and the side panels and is bolted to the side panels. A top drive 4 is mounted on top of the top panel.

[0033] Reference Figure 1 and Figure 2 , there is a certain distance between the middle plate and the front ends of the two side plates, and the transmission mechanism 2 and the press knife 3 are both installed on the side of the middle plate close to the front ends of the two side plates. Assuming that the maintenance opening 11 is the opening at the front ends of the two side plates, the transmission mechanism 2 and the press knife 3 do not protrude from the maintenance opening 11, and thus the transmission mechanism 2 and the press knife 3 do not interfere with the dust cover 12 during movement. At the same time, the structure of the transmission structure and the press knife 3 is more compact, making the entire tester smaller. In addition, such a design ensures that the projections of the entire transmission mechanism 2 and the press knife 3 in the direction of the maintenance opening 11 are all within the range of the maintenance opening 11, making it more convenient to disassemble and repair the transmission mechanism 2 or the press knife 3 later.

[0034] The dust cover 12 only blocks the upper portion of the maintenance opening 11, but not the lower portion. This arrangement allows the magnetic material to be placed below the press blade 3 from the lower portion of the maintenance opening 11 for shearing. Furthermore, it allows the tester to more intuitively observe the placement of the product to be tested, facilitating adjustments. The dust cover 12 is bolted to the two side panels, thereby reducing costs. In another embodiment, one side of the dust cover 12 is hinged to one of the side panels, and the other side is bolted to the other side panel.

[0035] Reference Figure 1 and Figure 2 The transmission mechanism 2 includes a guide rail 21 and a lifting plate group 22. The guide rail 21 is fixed to the side of the middle plate near the front end of the side plate by bolts, and the lifting plate group 22 is slidably mounted on the guide rail 21. The lifting plate group 22 is connected to the driving member to realize reciprocating lifting motion, and the pressing knife 3 is connected to the lifting plate group 22.

[0036] Reference Figure 2 and Figure 3Specifically, a first slider 23 and a second slider 24 are slidably mounted on the guide rail 21. The first slider 23 and the second slider 24 are spaced apart along the extension direction of the guide rail 21. The lifting plate group 22 includes a first lifting plate 25, a second lifting plate 26, and a connecting plate 27. The first lifting plate 25 is located on the side of the second lifting plate 26 close to the top plate and is spaced apart from the second lifting plate 26. The first lifting plate 25 is mounted on the first slider 23 by bolts; the second lifting plate 26 is mounted on the second slider 24 by bolts. The connecting plate 27 is located on the side of the first lifting plate 25 and the second lifting plate 26 close to the front end of the side plate, and is easy to disassemble during maintenance. One side of the connecting plate 27 is connected to the first lifting plate 25, and the other side is connected to the second lifting plate 26.

[0037] The first lifting plate 25 is connected to the top drive 4. The press blade 3 is located on the side of the second lifting plate 26 near the maintenance opening 11. Bolts are provided on the side of the press blade 3 near the maintenance opening 11 to mount the press blade 3 on the second lifting plate 26. This facilitates subsequent removal and maintenance of the press blade 3. When the top drive 4 drives the first lifting plate 25 to move, the second lifting plate 26 also moves under the action of the connecting plate 27, thereby driving the press blade 3 to move.

[0038] Reference Figure 3 and Figure 4 A first slot is defined on the side of the first lifting plate 25 near the second lifting plate 26. A pressure sensor 28 is inserted into the first slot and mounted to the first lifting plate 25 via bolts. A second slot is defined on the side of the second lifting plate 26 near the first lifting plate 25. The end of the pressure sensor 28 near the second lifting plate 26 protrudes from the first slot and is inserted into the second slot. This conceals the sensing end of the pressure sensor 28, making it less susceptible to other pressures that could cause deviations in the test values.

[0039] The connecting plate 27 is fixedly connected to the second lifting plate 26 by bolts. The bolts connecting the connecting plate 27 to the second lifting plate 26 are located at the end of the connecting plate 27 near the maintenance opening 11, making it easier to disassemble and repair the connecting plate 27. A positioning pin 251 is fixedly installed on the side of the first lifting plate 25 near the front end of the side plate. The connecting plate 27 is provided with a waist-shaped hole for the positioning pin 251 to be inserted into a pin hole 271, which extends in the vertical direction. When the pressing knife 3 does not contact the magnetic material to be tested, the connecting plate 27 is under the action of the gravity of the pressing knife 3 and the second lifting plate 26 so that the positioning pin 251 is located at the upper end of the pin hole 271. At this time, the end of the pressure sensor 28 away from the first lifting plate 25 does not contact the second lifting plate 26.

[0040] Combine Figure 1 Reference Figure 3 and Figure 4When the pressing knife 3 just contacts the magnetic material to be tested, the pressing knife 3 is first subjected to a certain top force and is limited. Then, as the top driving member 4 drives the first lifting plate 25 to continue to descend, the positioning pin 251 moves to the lower end of the pin hole 271 and drives the second lifting plate 26 to drive the pressing knife 3 to move downward. During this process, the first lifting plate 25 and the second lifting plate 26 will apply a moving extrusion force (i.e., the shear force of the magnetic material to be tested) to the pressure sensor 28.

[0041] In another embodiment, the pressure sensor 28 may be mounted on the second lifting plate 26. In yet another embodiment, the connecting plate 27 may be fixedly connected to the first lifting plate 25 by bolts, and the positioning pins 251 may be provided on the second lifting plate 26.

[0042] The top drive member 4 can be a pneumatic cylinder, an oil cylinder, or a screw motor. In this embodiment, the top drive member 4 is preferably a pneumatic cylinder, the cylinder body of which is fixedly mounted on the top of the top plate, and the telescopic rod of the cylinder passes through the top plate and is located below the top plate to connect to the first lifting plate 25, thereby reducing the occupation of the internal space of the column bracket 1.

[0043] Combine Figure 2 Reference Figure 4 and Figure 5 A display screen 51 is installed at the front end of the operation console 5, and the value generated by the pressure sensor 28 is displayed on the display screen 51. A precision pressure regulating valve 52 is installed at the rear end of the operation console 5. The precision pressure regulating valve 52 can adjust the air flow rate, so that the power of the top drive 4 can be adjusted, and the maximum pressure value of the pressure cutter 3 during shearing can be adjusted.

[0044] The top of the operating console 5 is provided with a support platform 53. The two side panels of the column bracket 1 are located on either side of the support platform 53 and are fixedly connected to the support platform 53 via bolts. A magnetic material placement plate 54 is bolted to the top of the support platform 53. The magnetic material placement plate 54 is located below the pressing knife 3 and can be placed on the magnetic material placement plate 54 to be tested. In another embodiment, the magnetic material placement plate 54 can also be fixedly mounted on the side panels between the columns.

[0045] Combine Figure 1 Reference Figure 5 and Figure 6 A push plate 55 is mounted on the magnetic material placement plate 54 and is slidably mounted on the magnetic material placement plate 54 in the forward and backward directions. The push plate 55 can move the magnetic material to be tested. When the push plate 55 drives the magnetic material to be tested to move to the edge of the magnetic material placement plate 54 and to be cantilevered, it drives the press blade 3 to descend and shear the magnetic material to be tested.

[0046] The rear end of the magnetic material placement plate 54 is mounted with a mounting bracket via bolts, and a differential head 56 (existing standard part) is mounted on the mounting bracket. The differential head 56 is exposed to the air and is not blocked by the intermediate plate, making subsequent maintenance or adjustment of the differential head 56 more convenient. The measuring rod on the differential head 56 abuts against the rear end of the push plate 55. Rotating the rotating drum on the differential head 56 can drive the measuring rod to push the push plate 55 to move, and the push plate 55 drives the magnetic material to be tested to move toward the edge of the magnetic material placement plate 54. Since the differential head 56 has a high precision and the measuring rod can move a small length, when testing thinner magnetic materials, the accuracy of the pressure knife 3 in shearing the magnetic material to be tested is increased, making the test results more accurate.

[0047] In another embodiment, the micrometer head 56 can be installed on the side panel of the column bracket 1; in another embodiment, the micrometer head 56 can be installed on the top of the operation console 5.

[0048] Combine Figure 1 Reference Figure 5 and Figure 6 The operating console 5 is provided with a clamping mechanism 57, which includes a lifting cylinder 571, a lifting rod 572, and a lower pressure bar 573. The lifting cylinder 571 is located inside and mounted on the operating console 5. The lifting rod 572 is connected to the telescopic rod of the lifting cylinder 571. The top of the lifting rod 572 passes through the operating console 5 and is located above the placement plate. The lower pressure bar 573 is mounted on the top of the lifting rod 572 by bolts, and the lower pressure bar 573 is located on one side of the pressing knife 3. When the micrometer head 56 drives the push plate 55 to move to move the magnetic material to be tested to the appropriate position, the lifting cylinder 571 drives the lifting rod 572 to descend and causes the lower pressure bar 573 to press the magnetic material or iron object that is attracted to the magnetic material to be tested onto the magnetic material placement plate 54.

[0049] In another embodiment, the clamping mechanism 57 can be installed on the side panel of the column bracket 1.

[0050] The implementation principle of a magnetic material shear force tester in an embodiment of the present application is: when maintaining or repairing the transmission mechanism 2, the pressure knife 3 and the pressure sensor 28, it is only necessary to open the dust cover 12, and the transmission mechanism 2, the pressure knife 3 and the pressure sensor 28 will be directly exposed within the range of the maintenance opening 11. After that, only the parts that need to be maintained or repaired need to be removed separately, without having to remove the entire column bracket 1 first and then remove the corresponding parts.

[0051] When testing the shear force of a magnetic material, the magnetic material to be tested is first attached to another magnetic material or ferrous material. Both are then placed on the magnetic material placement plate 54. The differential head 56 pushes the magnetic material to be tested a small distance so that it protrudes from the magnetic material placement plate 54. The lower pressure bar 573 is then driven down to press the magnetic material or ferrous object that is attached to the magnetic material to be tested against the magnetic material placement plate 54 to achieve positioning. The top drive 4 then drives the first lifting plate 25 to drive the pressing blade 3 down, shearing the magnetic material to be tested from the other magnetic material or physical material. The pressure value applied to the pressure sensor 28 during this process represents the shear force of the magnetic material to be tested.

[0052] In addition, the tester can also test other forces such as product adhesion, suction force, etc.

[0053] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A magnetic material shear force tester, characterized in that: The invention comprises a column bracket (1), a transmission mechanism (2) and a pressing knife (3) arranged in the column bracket (1); a maintenance opening (11) is provided on one side of the column bracket (1); the maintenance opening (11) is communicated with the interior of the column bracket (1); the transmission mechanism (2) is detachably and movably installed in the column bracket (1); the pressing knife (3) is detachably connected to the transmission mechanism (2); and when the transmission mechanism (2) moves, it can drive the pressing knife (3) to move so as to shear the magnetic material to be measured.

2. A magnetic material shear force tester according to claim 1, characterized in that: A dust cover (12) is provided at the maintenance opening (11), and the dust cover (12) is detachably connected to the column bracket (1).

3. A magnetic material shear force tester according to claim 1, characterized in that: It also includes a top driving member (4), which is installed on the top of the column bracket (1) and is connected to the transmission mechanism (2) to drive the transmission mechanism (2) to move.

4. A magnetic material shear force tester according to any one of claims 1 to 3, characterized in that: The invention also includes an operation console (5), the column bracket (1) is connected to the top of the operation console (5), and the operation console (5) or the column bracket (1) is provided with a precision pressure regulating valve (52), and the precision pressure regulating valve (52) is used to adjust the pressure value of the pressure knife (3) during shearing.

5. A magnetic material shear force tester according to claim 4, characterized in that: The transmission mechanism (2) comprises a guide rail (21) and a lifting plate group (22); the guide rail (21) is installed inside the column bracket (1); and the lifting plate group (22) is slidably installed on the guide rail (21).

6. A magnetic material shear force tester according to claim 5, characterized in that: The lifting plate group (22) comprises a first lifting plate (25), a second lifting plate (26) and a connecting plate (27) which are slidably connected to the guide rail (21); the first lifting plate (25) is located on a side of the second lifting plate (26) away from the operation console (5); the first lifting plate (25) and the second lifting plate (26) are arranged at intervals; one side of the connecting plate (27) is fixedly connected or movably connected to the first lifting plate (25); the other side of the connecting plate (27) is movably connected or fixedly connected to the second lifting plate (26); the first lifting plate (25) or the second lifting plate (26) is fixedly connected or movably connected to the first lifting plate (25). The two lifting plates (26) are provided with a pressure sensor (28), and the pressure sensor (28) is located between the first lifting plate (25) and the second lifting plate (26). The pressing knife (3) is detachably connected to the second lifting plate (26). When the pressing knife (3) shears the magnetic material to be measured, the first lifting plate (25) and the second lifting plate (26) press the pressure sensor (28). When the pressing knife (3) does not contact the magnetic material to be measured, the first lifting plate (25) and the second lifting plate (26) do not press the pressure sensor (28).

7. A magnetic material shear force tester according to claim 4, characterized in that: The operating console (5) or the column bracket (1) is connected to a magnetic material placement plate (54), the magnetic material placement plate (54) is located below the pressing knife (3), and the magnetic material to be tested is placed on the magnetic material placement plate (54).

8. A magnetic material shear force tester according to claim 7, characterized in that: A push plate (55) is slidably mounted on the magnetic material placement plate (54). After the push plate (55) moves, it can drive the magnetic material to be tested to move to the edge of the magnetic material placement plate (54) in a cantilevered shape.

9. A magnetic material shear force tester according to claim 8, characterized in that: The operating console (5) or the column bracket (1) or the magnetic material placement plate (54) is provided with a differential head (56) for driving the push plate (55) to move. The differential head (56) can drive the push plate (55) to move a small distance.

10. The magnetic material shear force tester according to claim 7, characterized in that: The operating console (5) or the column bracket (1) is equipped with a clamping mechanism (57), and the clamping mechanism (57) presses the magnetic material or iron object that is attracted to the magnetic material to be tested onto the magnetic material placement plate (54).

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