Metering detection device for hardness detection

Abstract

The utility model discloses a metering detection device for hardness detection, and relates to the technical field of detection devices, the metering detection device comprises a base, the outer wall of the base is fixedly connected with a supporting plate, and the outer wall of one side, far away from the supporting plate, of the base is fixedly connected with a controller. When a detection head shakes, a positioning ring is pushed, a connecting rod is pushed to rotate around a supporting rod, meanwhile, a positioning rod is pushed to rotate, a connecting column is pushed through rotation of the positioning rod, the connecting column slides along the outer wall of a connecting block, meanwhile, a damper between the two positioning rods is extruded, and the damper is set to automatically compress a spring when being extruded. And the resistance of the positioning ring during movement is increased by utilizing the elasticity of the spring, so that the spring and the damper are extruded through the rotation of the positioning rod, and the problem of inaccurate detection data of the detection head caused by inclination after the detection head is in contact with an object due to tiny inclination and concave-convex surfaces possibly appearing on the surface of the object is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of testing device technology, and in particular relates to a metrological testing device for hardness testing. Background Technology

[0002] According to the published patent CN221707198U, a metrological testing device for hardness testing is described. A first cylinder is fixedly connected to the upper end of the mounting frame, a pressure detector is fixedly connected to the lower end of the first cylinder, and a testing head is fixedly connected to the lower end of the pressure detector. Several vertical plates are symmetrically arranged on the upper end of the worktable. A second cylinder is fixedly connected to one side of each vertical plate, and a fixing frame is fixedly connected to one side of the second cylinder. By using the vertical plates, second cylinders, and fixing frames, it is convenient to fix the concrete slab and prevent displacement during testing. However, the following shortcomings still exist:

[0003] After completion, the above-mentioned equipment simply moves the detection head by a cylinder to perform the detection. However, the connection method of the detection head is too simple. Due to the slight tilt and unevenness of the object's surface, the detection head tilts after contacting the object, resulting in inaccurate detection data. Utility Model Content

[0004] The purpose of this invention is to provide a metrological testing device for hardness testing. By using a testing mechanism and a fixing mechanism, it solves the problem that the testing head tilts after contacting the object due to the slight tilt and unevenness of the object's surface, resulting in inaccurate testing data.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a metrological testing device for hardness testing, including a base, a support plate fixedly connected to the outer wall of the base, and a controller fixedly connected to the outer wall of the base on the side away from the support plate.

[0007] The inner wall of the support plate is provided with a detection mechanism, which includes an electric telescopic rod. The outer wall of the electric telescopic rod is fixedly connected to the inner wall of the support plate. A connecting block is fixedly connected to the top outer wall of the electric telescopic rod. A detection head is fixedly connected to the outer wall of the connecting block on the side away from the electric telescopic rod. A positioning ring is fixedly connected to the outer wall of the detection head. A connecting rod is rotatably connected to the outer wall of the positioning ring. A support rod is rotatably connected to the outer wall of the connecting rod on the side away from the positioning ring. A sliding rod is slidably connected to the inner wall of the support rod.

[0008] Furthermore, the outer wall of the slide rod is fixedly connected to the inner wall of the support plate, a positioning rod is rotatably connected to the inner wall of the slide rod near the support rod, a connecting column is rotatably connected to the outer wall of the other end of the positioning rod, the outer wall of the connecting column is slidably connected to the outer wall of the connecting block, a damper is fixedly connected to the outer wall of the positioning rod, a spring is fixedly connected to the outer wall of the damper, and a fixing mechanism is provided on the inner wall of the base.

[0009] Furthermore, the fixing mechanism includes a motor, the outer wall of the motor is fixedly connected to the inner wall of the base, the output end of the motor is fixedly connected to a connecting shaft via a coupling, and a pulley is fixedly connected to the outer wall of the connecting shaft.

[0010] Furthermore, a belt is driven to the inner wall of the pulley, and a second pulley is driven to the outer wall of the belt at the end away from the pulley. Both the outer walls of the pulley and the second pulley are fixedly connected with bidirectional threaded rods.

[0011] Furthermore, a positioning block is rotatably connected to the outer wall of the bidirectional threaded rod, the outer wall of the positioning block is fixedly connected to the inner wall of the base, and several sliders are threadedly connected to the outer wall of the bidirectional threaded rod.

[0012] Furthermore, a push rod is rotatably connected to the outer wall of several of the sliders, and a connecting rod is rotatably connected to the outer wall of the end of the push rod away from the slider, and a limit groove is formed on the inner wall of the connecting rod.

[0013] Furthermore, a second positioning block is slidably connected to the inner wall of the limiting groove, the outer wall of the second positioning block is fixedly connected to the inner wall of the base, a pressure plate is fixedly connected to the outer wall of the end of the connecting rod away from the push rod, and a rubber extrusion block is fixedly connected to the outer wall of the pressure plate.

[0014] Furthermore, a storage box is fixedly connected to the bottom inner wall of the base, and a placement board is fixedly connected to the top outer wall of the storage box.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a positioning rod and a spring. When the detection head shakes, it pushes the positioning ring, causing the connecting rod to rotate around the support rod, which in turn rotates the positioning rod. The rotation of the positioning rod pushes the connecting column to slide along the outer wall of the connecting block, while simultaneously squeezing the damper between the two positioning rods. The damper is designed to automatically compress the spring when squeezed, using the elasticity of the spring to increase the resistance when the positioning ring moves. This achieves the goal of squeezing the spring and damper through the rotation of the positioning rod, preventing the detection head from tilting after contacting the object due to slight tilts or uneven surfaces, thus avoiding inaccurate detection data.

[0017] 2. This utility model incorporates a pressure plate and a rubber extrusion block. During the movement of the two sliders in the same direction, two push rods on one side are simultaneously moved. These push rods move the connecting rod while simultaneously causing the second positioning block to slide along the limiting groove. Since the second positioning block is confined within the base and cannot move, it changes the direction of the connecting rod's movement during the rod's movement, causing it to rotate around the push rod and push the pressure plate towards the placement plate, while simultaneously pushing the rubber extrusion block. This ensures the rubber extrusion block contacts the object first. The rubber extrusion block's elasticity allows it to absorb the pressure generated by the pressure plate while being pressed down by the object, preventing deformation of the object due to excessive downward pressure during fixation, which could lead to changes in the object's hardness and inaccurate test results.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the detection structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the detection structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the fixing structure of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Base; 101. Support plate; 102. Controller; 2. Detection mechanism; 201. Electric telescopic rod; 202. Connecting block; 203. Detection head; 204. Positioning ring; 205. Connecting rod; 206. Support rod; 207. Slide rod; 208. Positioning rod; 209. Connecting column; 210. Damper; 211. Spring; 3. Fixing mechanism; 301. Motor; 302. Connecting shaft; 303. Bidirectional threaded rod; 304. Positioning block; 305. Pulley; 306. Belt; 307. Second pulley; 308. Slider; 309. Push rod; 310. Connecting rod; 311. Limiting groove; 312. Second positioning block; 313. Pressure plate; 314. Rubber extrusion block; 315. Storage box; 316. Placement plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 As shown, this utility model is a metrological testing device for hardness testing, including a base 1, a support plate 101 fixedly connected to the outer wall of the base 1, and a controller 102 fixedly connected to the outer wall of the base 1 away from the support plate 101. The controller 102 controls various parameters of the electric telescopic rod 201 and the motor 301, and displays them on the display screen of the controller 102.

[0029] A detection mechanism 2 is provided on the inner wall of the support plate 101. The detection mechanism 2 includes an electric telescopic rod 201. The electric telescopic rod 201 is shortened by a controller 102. The outer wall of the electric telescopic rod 201 is fixedly connected to the inner wall of the support plate 101. A connecting block 202 is fixedly connected to the top outer wall of the electric telescopic rod 201. A detection head 203 is fixedly connected to the outer wall of the connecting block 202 away from the electric telescopic rod 201. The movement of the electric telescopic rod 201 moves the connecting block 202 and presses down the detection head 203. A positioning ring 204 is fixedly connected to the outer wall of the detection head 203. A connecting rod 205 is rotatably connected to the outer wall of the positioning ring 204. A support rod 206 is rotatably connected to the outer wall of the connecting rod 205 away from the positioning ring 204. A sliding rod 207 is slidably connected to the inner wall of the support rod 206. The movement of the detection head 203 pushes the positioning ring 204, causing it to push the connecting rod 205 to move, while the support rod 206 moves, and the support rod 207 moves. One end of the 06 slides along the outer wall of the slide rod 207 to stabilize the movement of the positioning ring 204. The outer wall of the slide rod 207 is fixedly connected to the inner wall of the support plate 101. The inner wall of the slide rod 207 near the support rod 206 is rotatably connected to the positioning rod 208. The outer wall of the other end of the positioning rod 208 is rotatably connected to the connecting column 209. When the positioning ring 204 shakes, the support rod 206 pushes the positioning rod 208 to rotate around the connecting column 209 and pushes the connecting column 209 to move. The outer wall of the connecting column 209 is slidably connected to the outer wall of the connecting block 202. The outer wall of the positioning rod 208 is fixedly connected to the damper 210. The outer wall of the damper 210 is fixedly connected to the spring 211. The rotation of the positioning rod 208 squeezes the middle connecting column 209 and sets the connecting column 209 to automatically compress the damper 210 when squeezed. Thus, the elasticity of the damper 210 increases the resistance when the positioning ring 204 shakes. The inner wall of the base 1 is provided with a fixing mechanism 3.

[0030] The fixing mechanism 3 includes a motor 301, a starter motor 301, and an outer wall of the motor 301 fixedly connected to the inner wall of the base 1. The output end of the motor 301 is fixedly connected to a connecting shaft 302 via a coupling. A pulley 305 is fixedly connected to the outer wall of the connecting shaft 302. A belt 306 is driven through the inner wall of the pulley 305. A second pulley 307 is driven through the outer wall of the end of the belt 306 away from the pulley 305. The belt 306 connects both ends of the belt 306 to the pulley 305 and the second pulley 307 simultaneously, thus allowing the pulley 305 and the second pulley 307 to move together. Simultaneously rotating, both the outer walls of the pulley 305 and the second pulley 307 are fixedly connected with a bidirectional threaded rod 303. The outer wall of the bidirectional threaded rod 303 is rotatably connected with a positioning block 304. The bidirectional threaded rod 303 is rotated by the pulley 305 and the second pulley 307, while the positioning block 304 stabilizes the rotation of the bidirectional threaded rod 303. The outer wall of the positioning block 304 is fixedly connected to the inner wall of the base 1. Several sliders 308 are threadedly connected to the outer wall of the bidirectional threaded rod 303. The rotation of the bidirectional threaded rod 303 pushes the sliders 308 to move.

[0031] A push rod 309 is rotatably connected to the outer wall of several sliders 308. A connecting rod 310 is rotatably connected to the outer wall of the end of the push rod 309 away from the slider 308. The movement of the sliders 308 pushes the push rod 309 and the connecting rod 310 to move. A limiting groove 311 is formed on the inner wall of the connecting rod 310. A second positioning block 312 is slidably connected to the inner wall of the limiting groove 311. The outer wall of the second positioning block 312 is fixedly connected to the inner wall of the base 1. Since the second positioning block 312 slides along the limiting groove 311 during the movement of the connecting rod 310, and the second positioning block 312 is fixed inside the base 1, the second positioning block 312 can... The direction of movement of the connecting rod 310 is changed, thereby pushing the connecting rod 310 to rotate around the push rod 309. A pressure plate 313 is fixedly connected to the outer wall of the end of the connecting rod 310 away from the push rod 309. A rubber extrusion block 314 is fixedly connected to the outer wall of the pressure plate 313. The connecting rod 310 pushes the pressure plate 313 to move, so that the rubber extrusion block 314 comes into contact with the object. A storage box 315 is fixedly connected to the bottom of the inner wall of the base 1. A placement plate 316 is fixedly connected to the top outer wall of the storage box 315. The storage box 315 stores fragments of objects that have broken due to excessive strength, and the placement plate 316 facilitates the placement of objects while being pressed down by the rubber extrusion block 314.

[0032] One specific application of this embodiment is:

[0033] When the operator needs to use the equipment, the object is first placed on the surface of the placement plate 316. Then, the controller 102 starts the motor 301, causing the connecting shaft 302 to rotate, which in turn drives the pulley 305 to rotate. The pulley 305 drives the belt 306 to drive the second pulley 307 at the other end to rotate simultaneously. The rotation of the pulley 305 and the second pulley 307 drives the two bidirectional threaded rods 303 to rotate simultaneously, pushing the two sliders 308 on the outer side of the bidirectional threaded rods 303 to move in opposite directions simultaneously. The other rod is operated in the same way. Therefore, during the movement of the two sliders 308 in the same direction, the two push rods 309 on one side will be pushed to move simultaneously. The push rods 309 push the connecting rod 310 to move while simultaneously causing the second positioning block 312 to slide along the limiting groove 311. Since the second positioning block 312 is confined inside the base 1 and cannot move, it will change the direction of movement of the connecting rod 310 during its movement, causing it to rotate around the push rod 309 and push the pressure plate 313 towards the placement plate 316, while simultaneously pushing the rubber extrusion block 314. This causes the rubber extrusion block 314 to contact the object first. The object comes into contact with the pressure plate 313 by utilizing the material of the rubber extrusion block 314 itself, thereby preventing deformation of the object. Then, the controller 102 activates the electric telescopic rod 201 to automatically shorten it, and moves the connecting block 202 while simultaneously moving the detection head 203 at the outer end of the connecting block 202. During the movement of the detection head 203, the positioning ring 204 moves, pushing the connecting rod 205 to move. The connecting rod 205 then pushes the support rod 206 so that one end slides along the outer wall of the slide rod 207. The other side of the positioning ring 204 is treated similarly. In this way, the detection is stabilized. To prevent the probe 203 from wobbling during movement, when the probe 203 wobbles, it pushes the positioning ring 204, causing it to push the connecting rod 205 to rotate around the support rod 206, while simultaneously pushing the positioning rod 208 to rotate. The rotation of the positioning rod 208 pushes the connecting column 209 to slide along the outer wall of the connecting block 202, while simultaneously squeezing the damper 210 between the two positioning rods 208. The damper 210 is set to automatically compress the spring 211 when squeezed, using the elasticity of the spring 211 to increase the resistance when the positioning ring 204 moves, and using the damper 210 to absorb the pressure generated during wobbling.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A metrological detection device for hardness detection comprising a base (1), characterized in that: A support plate (101) is fixedly connected to the outer wall of the base (1), and a controller (102) is fixedly connected to the outer wall of the base (1) away from the support plate (101). The inner wall of the support plate (101) is provided with a detection mechanism (2). The detection mechanism (2) includes an electric telescopic rod (201). The outer wall of the electric telescopic rod (201) is fixedly connected to the inner wall of the support plate (101). A connecting block (202) is fixedly connected to the top outer wall of the electric telescopic rod (201). A detection head (203) is fixedly connected to the outer wall of the connecting block (202) away from the electric telescopic rod (201). A positioning ring (204) is fixedly connected to the outer wall of the detection head (203). A connecting rod (205) is rotatably connected to the outer wall of the positioning ring (204). A support rod (206) is rotatably connected to the outer wall of the connecting rod (205) away from the positioning ring (204). A sliding rod (207) is slidably connected to the inner wall of the support rod (206).

2. The metrology detection device for hardness detection according to claim 1, characterized in that, The outer wall of the slide rod (207) is fixedly connected to the inner wall of the support plate (101). A positioning rod (208) is rotatably connected to the inner wall of the slide rod (207) near the support rod (206). A connecting column (209) is rotatably connected to the outer wall of the other end of the positioning rod (208). The outer wall of the connecting column (209) is slidably connected to the outer wall of the connecting block (202). A damper (210) is fixedly connected to the outer wall of the positioning rod (208). A spring (211) is fixedly connected to the outer wall of the damper (210). A fixing mechanism (3) is provided on the inner wall of the base (1).

3. The metrology detection device for hardness detection according to claim 2, characterized in that The fixing mechanism (3) includes a motor (301), the outer wall of the motor (301) is fixedly connected to the inner wall of the base (1), the output end of the motor (301) is fixedly connected to a connecting shaft (302) through a coupling, and a pulley (305) is fixedly connected to the outer wall of the connecting shaft (302).

4. The metrology detection device for hardness detection according to claim 3, wherein, The inner wall of the pulley (305) is connected to a belt (306), and the outer wall of the belt (306) away from the pulley (305) is connected to a second pulley (307). Both the outer walls of the pulley (305) and the second pulley (307) are fixedly connected to a bidirectional threaded rod (303).

5. The metrology detection device for hardness detection according to claim 4, characterized in that, The outer wall of the bidirectional threaded rod (303) is rotatably connected to a positioning block (304), the outer wall of the positioning block (304) is fixedly connected to the inner wall of the base (1), and the outer wall of the bidirectional threaded rod (303) is threadedly connected to several sliders (308).

6. The metrology detection device for hardness detection according to claim 5, wherein, A push rod (309) is rotatably connected to the outer wall of several sliders (308). A connecting rod (310) is rotatably connected to the outer wall of the end of the push rod (309) away from the slider (308). A limit groove (311) is formed on the inner wall of the connecting rod (310).

7. The metrology detection device for hardness detection according to claim 6, characterized in that The inner wall of the limiting groove (311) is slidably connected to a second positioning block (312), the outer wall of the second positioning block (312) is fixedly connected to the inner wall of the base (1), the outer wall of the end of the connecting rod (310) away from the push rod (309) is fixedly connected to a pressure plate (313), and the outer wall of the pressure plate (313) is fixedly connected to a rubber extrusion block (314).

8. The metrology detection device for hardness detection according to claim 7, characterized in that, A storage box (315) is fixedly connected to the bottom of the inner wall of the base (1), and a placement plate (316) is fixedly connected to the top outer wall of the storage box (315).

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