Hardmeter convenient for rapid limiting

Abstract

The utility model relates to the technical field of durometers, in particular to a durometer convenient to limit quickly, which comprises a durometer body, a pressure head is fixedly connected to the top of the durometer body, a moving component is arranged in the middle of the durometer body, and a limiting component is arranged at the top of the moving component. The limiting assembly drives the four limiting plates to move synchronously, compared with a traditional limiting mode, limiting clamping blocks do not need to be adjusted one by one for limiting, the limiting assembly has a self-centering function, an object to be detected can be automatically fixed to the lower portion of the pressing head, detection is convenient, the tail end of an insertion rod is pulled out of an insertion hole, and the detection efficiency is improved. At the moment, the moving block can slide along the interior of the sliding rail through the rolling wheels at the bottom, so that the limiting assembly above is driven to move out of the hardness tester body, a to-be-tested object with a large size is conveniently placed on the limiting table, the situation that a top beam of the hardness tester body shields the sight line is avoided, and fixing is easier.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness testers, in particular to a hardness tester which is convenient for rapid position limiting. Background Art

[0002] A hardness tester is a hardness testing instrument that indicates the ability of a workpiece material to resist being pressed into its surface by a hard object. It is one of the important performance indicators of a workpiece material. Generally, the higher the hardness, the better the durability and the longer the service life. Therefore, hardness testing is a crucial inspection step before a workpiece is put into use.

[0003] The existing patent (publication number: CN218121657U) discloses a hardness tester capable of limiting the position of a workpiece, comprising a hardness tester housing, a base, an operation panel, a support table and a column. The base is installed at the bottom of the hardness tester housing, and the operation panel is installed on one side of the hardness tester housing. The outer wall of the electric slide rail is provided with a slide bar, and the outer wall of the slide bar facing the detection probe is provided with a cleaning wipe. For this hardness tester capable of limiting the position of a workpiece, when the workpiece is placed on the workbench, when the detection probe detects the workpiece, it is easy for the workpiece to move slightly after being subjected to force, thereby affecting the accuracy of the workpiece detection. At this time, the turntable can be rotated by the handle, and when the turntable moves toward the workpiece, the friction force is used to clamp the workpiece, thereby maintaining the stability of the workpiece and avoiding the situation where the workpiece moves during detection and affects the detection result. At the same time, due to the clamping design of the turntable for the workpiece, the application range of workpieces of different sizes is increased. In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. Although the existing hardness tester can clamp and limit the workpiece, the two turntables used for limiting are circular, resulting in a small contact area between the turntable and the workpiece, small friction between the turntable and the workpiece, limited clamping effect, and the two turntables rotate separately, which cannot accurately clamp the workpiece at the center position of the support table and is slow to clamp; 2. When the existing hardness tester is used to limit and fix a larger workpiece to be tested, the field of view will be blocked by the hardness tester housing on the top, making the fixing process difficult. Utility Model Content

[0004] The purpose of the utility model is to provide a hardness tester that is easy to limit quickly, so as to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: a hardness tester that is easy to limit quickly, comprising a hardness tester body, a pressure head is fixedly connected to the top of the hardness tester body, a moving component is provided in the middle of the hardness tester body, a limiting component is provided on the top of the moving component, and a locking component is provided on the front side of the hardness tester body;

[0005] The moving assembly comprises a slide rail fixedly connected to the right side of the hardness tester body, the bottom of the slide rail is rollingly connected to two rollers, the two rollers are rotatably connected to the bottom of the moving block, and a socket is opened in the middle of the front side of the moving block.

[0006] Further preferably, the limit assembly includes a limit platform fixedly connected to the top of the moving block, the inner bottom of the limit platform is fixedly connected to a motor, the output end of the motor is fixedly connected to a turntable, four connecting rods are hinged at the bottom edge of the turntable, the four connecting rods are hinged to a limit block at one end away from the turntable, the top of the limit block is fixedly connected to a limit plate, and the limit block is slidably connected to the middle of the limit slot.

[0007] Further preferably, the number of the limit blocks is four, and the bottoms of two limit blocks located on the left and right sides of the four limit blocks are fixedly connected to fixing plates, and the fixing plates are connected by telescopic rods.

[0008] Further preferably, the limiting grooves are provided on the top surface of the limiting platform, and the number of the limiting grooves is four, the four limiting grooves are equiangularly distributed on the top surface of the limiting platform, and a limiting structure is formed between the limiting grooves and the limiting blocks.

[0009] Further preferably, the locking assembly includes a fixed cylinder fixedly connected to the front side of the hardness tester body, a fixed circular plate is fixedly connected to the middle of the fixed cylinder, a spring is attached to one side of the fixed circular plate, a movable plate is attached to the end of the spring away from the fixed circular plate, an insertion rod passes through the middle of the movable plate, one end of the insertion rod is fixedly connected to a cross bar, both ends of the cross bar are clamped in the inside of the deep groove, and two shallow grooves are provided at the end of the fixed cylinder away from the hardness tester body.

[0010] Further preferably, the insertion rod passes through the fixed circular plate, the movable plate and the hardness tester body in sequence from front to back, and one end of the insertion rod away from the fixed tube is inserted into the inside of the insertion hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the turntable is driven to rotate by a motor, and the rotation of the turntable will drive the limit block to move through the connecting rod. Due to the action of the limit slot and the telescopic rod, the four limit blocks can only perform synchronous linear motion along the limit slot, thereby driving the limit plate on the top to limit and fix the object to be tested on the limit table. In this limiting method, the four limit plates move synchronously. Compared with the traditional limiting method, there is no need to adjust the limit clamps one by one to limit the position. In addition, the limit assembly has a self-centering function, which can automatically fix the object to be tested under the pressure head, which is convenient for detection.

[0013] In the utility model, by pulling out the end of the insertion rod from the insertion hole, the moving block can slide along the inside of the slide rail through the roller at the bottom, thereby driving the upper limit assembly to move out of the hardness tester body, making it convenient to place a larger object to be tested on the limit table, avoiding the top beam of the hardness tester body blocking the line of sight, and making it easier to fix. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the limit platform of the utility model when viewed from above;

[0018] Figure 5 This is a schematic diagram of the top view of the limit platform of the utility model;

[0019] Figure 6 This is a schematic diagram of the main structure of the mobile component of the utility model.

[0020] In the figure: 1. hardness tester body; 2. pressure head; 3. moving assembly; 301. slide rail; 302. roller; 303. moving block; 304. socket; 4. limit assembly; 401. limit table; 402. motor; 403. turntable; 404. connecting rod; 405. limit block; 406. limit plate; 407. limit groove; 408. fixed plate; 409. telescopic rod; 5. locking assembly; 501. fixed cylinder; 502. fixed circular plate; 503. spring; 504. movable plate; 505. plug rod; 506. cross bar; 507. deep groove; 508. shallow groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 6The utility model provides a technical solution: a hardness tester that is convenient for rapid position limiting, comprising a hardness tester body 1, a pressure head 2 is fixedly connected to the top of the hardness tester body 1, a moving component 3 is provided in the middle of the hardness tester body 1, a position limiting component 4 is provided on the top of the moving component 3, and a locking component 5 is provided on the front side of the hardness tester body 1;

[0023] The moving assembly 3 includes a slide rail 301 fixedly connected to the right side of the hardness tester body 1. Two rollers 302 are rollingly connected to the bottom of the slide rail 301. The two rollers 302 are rotatably connected to the bottom of the moving block 303. A socket 304 is opened in the middle of the front side of the moving block 303.

[0024] In this embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the limit assembly 4 includes a limit platform 401 fixedly connected to the top of the moving block 303, a motor 402 is fixedly connected to the inner bottom of the limit platform 401, a turntable 403 is fixedly connected to the output end of the motor 402, four connecting rods 404 are hinged at the bottom edge of the turntable 403, and the four connecting rods 404 are hinged to a limit block 405 at one end away from the turntable 403, the top of the limit block 405 is fixedly connected to a limit plate 406, and the limit block 405 is slidably connected to the middle of the limit slot 407.

[0025] In this embodiment, Figure 3 , Figure 4 and Figure 5 As shown, there are four limit blocks 405, and the bottoms of the two limit blocks 405 located on the left and right sides of the four limit blocks 405 are fixedly connected to fixed plates 408, and the fixed plates 408 are connected by telescopic rods 409; the telescopic rods 409 cooperate with the turntable 403 and the connecting rod 404 to simultaneously drive the four limit plates 406 on the top to move, so as to achieve the limit fixation of the object to be detected on the limit platform 401, and the four limit plates 406 are self-centering limit structures, which can automatically fix the object to be detected under the pressure head 2 for easy detection.

[0026] In this embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the limit groove 407 is opened on the top surface of the limit platform 401, and the number of the limit grooves 407 is four, and the four limit grooves 407 are equiangularly distributed on the top surface of the limit platform 401, and a limit structure is formed between the limit groove 407 and the limit block 405; the limit groove 407 enables the limit block 405 to always keep sliding inside the limit groove 407, thereby preventing the rotation of the turntable 403 from driving the four limit blocks 405 to rotate at the same time.

[0027] In this embodiment, Figure 2 and Figure 6As shown, the locking assembly 5 includes a fixed cylinder 501 fixedly connected to the front side of the hardness tester body 1, a fixed circular plate 502 is fixedly connected to the middle of the fixed cylinder 501, a spring 503 is attached to one side of the fixed circular plate 502, a movable plate 504 is attached to the end of the spring 503 away from the fixed circular plate 502, an insertion rod 505 passes through the middle of the movable plate 504, one end of the insertion rod 505 is fixedly connected to a cross bar 506, both ends of the cross bar 506 are clamped in the inside of the deep groove 507, and two shallow grooves 508 are provided at the end of the fixed cylinder 501 away from the hardness tester body 1.

[0028] In this embodiment, Figure 2 and Figure 6 As shown, the insertion rod 505 passes through the fixed circular plate 502, the movable plate 504 and the hardness tester body 1 from front to back in sequence, and the end of the insertion rod 505 away from the fixed cylinder 501 is inserted into the inside of the insertion hole 304; so that the insertion rod 505 can fix the moving block 303 in the hardness tester body 1 to prevent the limit table 401 from moving when the hardness of the object is tested.

[0029] The use method and advantages of the utility model: When the hardness tester which is convenient for rapid limit is used, the working process is as follows:

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, first pull the cross bar 506 outward to drive the insertion rod 505 and the movable plate 504 to move outward. At this time, the movable plate 504 will squeeze the spring 503, and the end of the insertion rod 505 will be pulled out from the insertion hole 304. At this time, the moving block 303 can slide along the inside of the slide rail 301 through the bottom roller 302, thereby driving the upper limit assembly 4 to move out from the hardness tester body 1, so as to facilitate placing a larger object to be tested on the limit table 401 to avoid the top beam of the hardness tester body 1 blocking the line of sight, and rotate the cross bar 506 90° when pulling it out, so that the cross bar 506 is aligned with the shallow groove 508, and then release the hand pulling the cross bar 506. Under the action of the spring 503, the cross bar 506 will enter the shallow groove 508 and be fixed, and then start the motor 402 to drive the turntable 403 to rotate. The rotation of the turntable 403 will drive the limit block 405 to move through the connecting rod 404, and because the limit groove 407 is connected to the telescopic The action of the rod 409 makes the four limit blocks 405 only able to perform synchronous linear motion along the limit groove 407, thereby driving the top limit plate 406 to limit and fix the object to be tested on the limit platform 401. In this limiting method, the four limit plates 406 move synchronously. Compared with the traditional limiting method, there is no need to adjust the limit clamps one by one to limit the position, and the limit assembly 4 has a self-centering function, which can automatically fix the object to be tested under the pressure head 2, which is convenient for detection. After the object is fixed, the limit assembly 4 is reset by the moving block 303 and the roller 302, and the cross bar 506 is pulled up. After the moving block 303 moves to the specified position, the cross bar 506 is released. Under the action of the spring 503, the insertion rod 505 will be inserted into the jack 304 to fix the entire moving block 303 together with the upper limit assembly 4, so as to avoid the limit platform 401 from moving during the detection process and affecting the detection result.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hardness tester that is convenient for rapid position limiting, comprising a hardness tester body (1), characterized in that: The top of the hardness tester body (1) is fixedly connected to an indenter (2), a moving assembly (3) is provided in the middle of the hardness tester body (1), a limiting assembly (4) is provided on the top of the moving assembly (3), and a locking assembly (5) is provided on the front side of the hardness tester body (1); The moving assembly (3) comprises a slide rail (301) fixedly connected to the right side of the hardness tester body (1); the bottom of the slide rail (301) is rollingly connected to two rollers (302); the two rollers (302) are rotatably connected to the bottom of a moving block (303); and a socket (304) is provided in the middle of the front side of the moving block (303).

2. A hardness tester for facilitating rapid positioning according to claim 1, characterized in that: The limit assembly (4) comprises a limit platform (401) fixedly connected to the top of the moving block (303); the inner bottom of the limit platform (401) is fixedly connected to a motor (402); the output end of the motor (402) is fixedly connected to a turntable (403); four connecting rods (404) are hinged at the bottom edge of the turntable (403); one end of the four connecting rods (404) away from the turntable (403) is hinged to a limit block (405); the top of the limit block (405) is fixedly connected to a limit plate (406); and the limit block (405) is slidably connected to the middle of the limit slot (407).

3. A hardness tester for facilitating rapid positioning according to claim 2, characterized in that: The number of the limit blocks (405) is four, and the bottoms of two limit blocks (405) located on the left and right sides of the four limit blocks (405) are fixedly connected to fixed plates (408), and the fixed plates (408) are connected by telescopic rods (409).

4. A hardness tester for facilitating rapid positioning according to claim 2, characterized in that: The limiting grooves (407) are provided on the top surface of the limiting platform (401), and there are four limiting grooves (407). The four limiting grooves (407) are equiangularly distributed on the top surface of the limiting platform (401), and a limiting structure is formed between the limiting grooves (407) and the limiting block (405).

5. A hardness tester for facilitating rapid positioning according to claim 1, characterized in that: The locking assembly (5) comprises a fixed cylinder (501) fixedly connected to the front side of the hardness tester body (1), a fixed circular plate (502) fixedly connected to the middle of the fixed cylinder (501), a spring (503) attached to one side of the fixed circular plate (502), a movable plate (504) attached to one end of the spring (503) away from the fixed circular plate (502), an insertion rod (505) passing through the middle of the movable plate (504), one end of the insertion rod (505) fixedly connected to a cross bar (506), both ends of the cross bar (506) being clamped in the inside of the deep groove (507), and two shallow grooves (508) are provided at one end of the fixed cylinder (501) away from the hardness tester body (1).

6. A hardness tester for facilitating rapid positioning according to claim 5, characterized in that: The insertion rod (505) passes through the fixed circular plate (502), the movable plate (504) and the hardness tester body (1) in sequence from front to back, and one end of the insertion rod (505) away from the fixed cylinder (501) is inserted into the inside of the insertion hole (304).

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