Hardness tester convenient to use

Abstract

The utility model discloses a hardness tester convenient to use, which relates to the technical field of hardness testers and comprises a base, a support frame is mounted at the top of the base, a sliding groove is formed in the support frame, a support is slidably connected into the sliding groove, a hydraulic rod is mounted at the bottom of the support, and a pressure gauge is connected to the output end of the hydraulic rod. Pressing plates are mounted at the lower ends of the pressure gauges. The hardness tester convenient to use has the beneficial effects that through the multiple groups of limiting rods sliding in the base, under the action that racks on one sides of the limiting rods are meshed with the first gears in the grooves, and second gears connected with the multiple groups of first gears are meshed with the inner gear, the multiple groups of first gears are in transmission; and meanwhile, multiple groups of limiting rods are rotated and driven to move, and limiting plates on the multiple groups of limiting rods clamp the part, so that the part is conveniently and quickly fixed, the efficiency is improved, locking is performed under the action of a worm gear and a worm, and movement of the part during detection is favorably prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness testers, in particular to a hardness tester convenient to use. Background Technique

[0002] A hardness meter is an instrument for measuring the hardness of materials. According to the different materials to be measured, hardness meters can be applied to different fields. It is an important tool in modern industrial and scientific research fields, providing a scientific basis for the selection, processing and use of materials.

[0003] Application No. 202323031632.8 discloses a hardness tester. By adopting a clamping mechanism with adjustable direction, pressure testing is carried out on the parts to be tested, which not only solves the problem of insufficient clamping force in the comparative document, but also can adapt to different clamping positions of parts with different shapes, and the base is a plane, avoiding the problem of affecting the test result accuracy due to slotting on the base surface in the comparative document.

[0004] For the clamping mechanism of the above application, it is necessary to rotate multiple rotating buttons respectively to drive the displacement of the splints at one end of multiple groups of threaded rods to clamp and fix the parts. While the efficiency is low, it is not convenient to use. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a hardness tester convenient to use, which solves the problems put forward in the above background technique.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A hardness tester convenient to use, including a base, a support frame is installed on the top of the base, a chute is opened inside the support frame, a bracket is slidably connected inside the chute, a hydraulic rod is installed at the bottom of the bracket, the output end of the hydraulic rod is connected with a pressure gauge, a pressing plate is installed at the lower end of the pressure gauge, a groove is opened inside the base and on one side of the support frame, a support table is installed inside the groove, a plurality of limiting holes are opened inside the base and outside the groove, a limiting rod is slidably connected inside each of the plurality of limiting holes, a limiting plate is threadedly connected to one end of the limiting rod, a rack is installed on one side of the limiting rod, a first gear is rotatably connected to one side of each of the plurality of racks inside the groove, the first gear meshes with the rack, a second gear is connected to the bottom of each of the plurality of first gears, an internal gear is rotatably connected to one side of each of the plurality of second gears inside the groove, the internal gear meshes with each of the plurality of second gears respectively, a limiting groove is opened at the bottom of the groove inside the base, a worm gear and a worm are rotatably connected inside the limiting groove, the worm gear and the worm mesh with each other, a turning handle is rotatably connected to one side of the base, and the worm gear and the worm are respectively connected with one of the second gears and the turning handle.

[0007] Preferably, a controller is installed on one side of the support frame, and a display screen is arranged on one side of the controller.

[0008] Preferably, a locking bolt is threadedly connected to the top of the support frame, and one end of the locking bolt extends into the sliding groove.

[0009] Preferably, a threaded post is installed on the top of the limiting rod.

[0010] Preferably, a threaded hole matching the threaded post is formed inside the limiting plate.

[0011] Preferably, a rubber pad is installed at the bottom of the pressing plate.

[0012] The present utility model provides a hardness tester that is convenient to use, and has the following beneficial effects:

[0013] 1. For this hardness tester that is convenient to use, through multiple groups of limiting rods sliding inside the base, with the rack on one side meshing with the first gear inside the groove, and the second gears connected to the multiple groups of first gears all meshing with the internal gear, the multiple groups of first gears are driven to transmit power, and at the same time rotate and drive the multiple groups of limiting rods to displace. The limiting plates on the multiple groups of limiting rods then clamp the parts, facilitating quick fixation of the parts, improving efficiency, and being locked under the action of the worm gear and the worm, which is beneficial to preventing the parts from moving during detection.

[0014] 2. For this hardness tester that is convenient to use, through the sliding connection between the bracket and the sliding groove inside the support frame, in cooperation with the locking bolt, it is convenient to adjust the position of the bracket and the pressing plate below it, enabling the pressing plate to better align with parts of different shapes. Moreover, the limiting plate is threadedly connected to the limiting rod, and can be installed and disassembled by rotation, facilitating the replacement of the corresponding limiting plate according to the shape of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is of the present utility model Figure 1 the enlarged view at A in;

[0017] Figure 3 is a top cross-sectional view of the present utility model;

[0018] Figure 4 is of the present utility model Figure 3 the enlarged view at B in;

[0019] Figure 5 is a side cross-sectional view of the present utility model.

[0020] In the figure: 1, base; 2, support frame; 3, chute; 4, bracket; 5, hydraulic rod; 6, pressure gauge; 7, pressing plate; 8, groove; 9, support table; 10, limiting hole; 11, limiting rod; 12, limiting plate; 13, rack; 14, first gear; 15, second gear; 16, internal gear; 17, limiting groove; 18, worm gear; 19, worm; 20, turning handle; 21, rubber pad; 22, controller; 23, locking bolt; 24, threaded column; 25, threaded hole. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a hardness tester that is easy to use, including a base 1, a support frame 2 is installed on the top of the base 1, a chute 3 is opened inside the support frame 2, a bracket 4 is slidably connected inside the chute 3, a hydraulic rod 5 is installed at the bottom of the bracket 4, the output end of the hydraulic rod 5 is connected to a pressure gauge 6, a pressing plate 7 is installed at the lower end of the pressure gauge 6, through the operation of the hydraulic rod 5, the pressing plate 7 rises and falls accordingly to squeeze the part, so as to detect the hardness of the part. A locking bolt 23 is threadedly connected to the top of the support frame 2, and one end of the locking bolt 23 extends into the chute 3, enabling the bracket 4 to slide and adjust the position of the pressing plate 7, so that the pressing plate 7 can better align with the part, and by rotating the locking bolt 23, one end of the locking bolt 23 is displaced accordingly and presses and fixes the bracket 4. A rubber pad 21 is installed at the bottom of the pressing plate 7, which is beneficial to strengthening the protection of the pressing plate 7 and preventing damage to the part where the pressing plate 7 contacts the part. A groove 8 is opened inside the base 1 and on one side of the support frame 2, a support platform 9 is installed inside the groove 8 for facilitating the support of the part. A plurality of limiting holes 10 are opened inside the base 1 and outside the groove 8, a limiting rod 11 is slidably connected inside each of the plurality of limiting holes 10, a limiting plate 12 is threadedly connected to one end of the limiting rod 11, a threaded column 24 is installed at the top of the limiting rod 11, and a threaded hole 25 matching the threaded column 24 is opened inside the limiting plate 12. The threaded connection structure facilitates replacing the corresponding limiting plate 12 according to the shape of the part. A rack 13 is installed on one side of the limiting rod 11, a first gear 14 is rotatably connected inside the groove 8 and on one side of each of the plurality of racks 13, the first gear 14 meshes with the rack 13, the bottom of each of the plurality of first gears 14 is connected to a second gear 15, an internal gear 16 is rotatably connected inside the groove 8 and on one side of each of the plurality of second gears 15, and the internal gear 16 meshes with each of the plurality of second gears 15 respectively. Under the action of the internal gear 16, the plurality of second gears 15 are driven to drive the plurality of first gears 14 to rotate simultaneously. Similarly, through the meshing of each of the plurality of first gears 14 with the racks 13 on one side of each of the plurality of limiting rods 11, the plurality of limiting rods 11 are driven to displace simultaneously, so that the limiting plates 12 at one ends of the plurality of limiting rods 11 quickly clamp and fix the part. A limiting groove 17 is opened at the bottom of the groove 8 inside the base 1, a worm gear 18 and a worm 19 are rotatably connected inside the limiting groove 17, and the worm gear 18 and the worm 19 mesh with each other. A turning handle 20 is rotatably connected to one side of the base 1, and the worm gear 18 and the worm 19 are respectively connected to one of the second gears 15 and the turning handle 20. Under the action of the second gear 15 and the turning handle 20, the turning handle 20 and the second gear 15 are driven to facilitate controlling the rotation of the second gear 15 and locking it. A controller 22 is installed on one side of the support frame 2, and a display screen is arranged on one side of the controller 22.

[0023] In summary, for the conveniently used hardness tester, when in use, place the part on the support table 9, drive the worm 19 in the limit groove 17 in the base 1 to rotate through the turning handle 20. When the worm 19 meshes with the worm wheel 18, the worm 19 is connected to one of the second gears 15, causing one of the second gears 15 to rotate. Similarly, under the action that multiple second gears 15 are all meshed with the internal gear 16 in the groove 8 and multiple second gears 15 are respectively connected to multiple first gears 14, multiple second gears 15 rotate simultaneously, and multiple first gears 14 rotate accordingly. Since multiple limit rods 11 are slidably connected in multiple limit holes 10 and multiple first gears 14 are respectively meshed with the racks 13 on one side of multiple limit rods 11, multiple first gears 14 push multiple limit rods 11 to displace, and the limit plates 12 at one ends of multiple limit rods 11 clamp and fix the part. At this time, the hydraulic rod 5 at the bottom of the bracket 4 pushes the pressure gauge 6 and the pressing plate 7 downward, causing the pressing plate 7 to press the part to detect the hardness of the part. Before detection, according to the shape of the part, by cooperating with the sliding connection between the bracket 4 and the sliding groove 3 in the support frame 2, the bracket 4 can be slid to adjust the positions of the hydraulic rod 5 and the pressure gauge 6 below the bracket 4, so that the pressure gauge 6 is aligned with the part.

[0024] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. A hardness tester that is convenient to use, comprising a base (1), characterized in that: A support frame (2) is installed on the top of the base (1). A chute (3) is provided inside the support frame (2). A bracket (4) is slidably connected inside the chute (3). A hydraulic rod (5) is installed at the bottom of the bracket (4). The output end of the hydraulic rod (5) is connected to a pressure gauge (6). A pressing plate (7) is installed at the lower end of the pressure gauge (6). A groove (8) is provided inside the base (1) and on one side of the support frame (2). A support platform (9) is installed inside the groove (8). A plurality of limiting holes (10) are provided inside the base (1) and outside the groove (8). A limiting rod (11) is slidably connected inside each of the plurality of limiting holes (10). A limiting plate (12) is threadedly connected to one end of the limiting rod (11). A rack (13) is installed on one side of the limiting rod (11). A first gear (14) is rotatably connected inside the groove (8) and on one side of each of the plurality of racks (13). The first gear (14) meshes with the rack (13). A second gear (15) is connected to the bottom of each of the plurality of first gears (14). An internal gear (16) is rotatably connected inside the groove (8) and on one side of each of the plurality of second gears (15). The internal gear (16) meshes with each of the plurality of second gears (15). A limiting groove (17) is provided at the bottom of the groove (8) inside the base (1). A worm gear (18) and a worm (19) are rotatably connected inside the limiting groove (17). The worm gear (18) and the worm (19) mesh with each other. A turning handle (20) is rotatably connected to one side of the base (1). The worm gear (18) and the worm (19) are respectively connected to one of the second gears (15) and the turning handle (20).

2. The hardness tester that is easy to use according to claim 1, wherein: A controller (22) is installed on one side of the support frame (2). A display screen is provided on one side of the controller (22).

3. The hardness tester that is easy to use according to claim 1, wherein: A locking bolt (23) is threadedly connected to the top of the support frame (2). One end of the locking bolt (23) extends into the chute (3).

4. The hardness tester convenient to use according to claim 1, characterized in that: A threaded post (24) is installed at the top of the limiting rod (11).

5. The hardness tester that is convenient to use according to claim 4, wherein: A threaded hole (25) matching the threaded post (24) is provided inside the limiting plate (12).

6. The hardness tester that is convenient to use according to claim 1, wherein: A rubber pad (21) is installed at the bottom of the pressing plate (7).

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