Rockwell hardness tester with positioning structure

Abstract

The utility model discloses a Rockwell hardness tester with a positioning structure, which comprises a fixing frame, a driving cylinder fixedly arranged at the upper end of the fixing frame, a testing head mounted at the output end of the driving cylinder, a placing plate fixedly arranged in the fixing frame, a storage groove formed in the lower end of the fixing frame, a case arranged in the storage groove, and a positioning structure arranged in the case, a bidirectional lead screw is arranged in the machine box, sliding blocks are arranged on the outer walls of the two sides of the bidirectional lead screw in a threaded mode, the upper ends of the sliding blocks penetrate through limiting grooves in the upper end of the machine box to be fixedly connected with connecting rods, a fastening plate is fixedly arranged on one side of each connecting rod, and a storage structure is arranged at the lower end of the machine box and comprises a transverse plate fixedly arranged on the inner wall of a storage groove. When the Rockwell hardness tester with the positioning structure disclosed by the utility model is used for detecting the hardness of a large object, the lower end of the large object can be tightly placed and attached, and the deformation caused by suspension of the lower end of the large object is avoided when the hardness of the large object is tested.

Description

Technical Field

[0001] The utility model relates to the field of hardness testers, and particularly relates to a Rockwell hardness tester with a positioning structure. Background Technique

[0002] A Rockwell hardness tester is a device commonly used to measure the hardness of metal materials. It is based on the Rockwell hardness test principle. By applying a predetermined load on the surface of the material and then measuring the depth of the residual indentation after unloading, the hardness of the material can be determined.

[0003] Existing hardness testers generally have a fastening structure. Two sets of arc-shaped fastening plates are used to fasten smaller objects. When it is necessary to place and detect larger objects, limited by the distance between the two sets of fastening plates, if the object is directly placed on the upper end of the fastening plate for hardness detection, the downward pressure will cause the lower end of the fastening plate to be deformed under stress, and at the same time, it will affect the service life of the fastening plate. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a Rockwell hardness tester with a positioning structure, which can effectively solve the technical problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A Rockwell hardness tester with a positioning structure includes a fixed frame. A driving cylinder is fixedly arranged at the upper end of the fixed frame. A test head is installed at the output end of the driving cylinder. A placement plate is fixedly arranged inside the fixed frame. A storage groove is opened at the lower end of the fixed frame. A chassis is arranged inside the storage groove. A bidirectional lead screw is arranged inside the chassis. Sliders are threadedly arranged on the outer walls on both sides of the bidirectional lead screw. The upper end of the slider passes through the limit groove at the upper end of the chassis and is fixedly connected with a connecting rod. A fastening plate is fixedly arranged on one side of the connecting rod. A storage structure is arranged at the lower end of the chassis. The storage structure includes a cross plate fixedly arranged on the inner wall of the storage groove. A first lead screw is threadedly arranged inside the cross plate. The output end of the first lead screw is rotationally connected with the lower end of the chassis. The front and rear ends of the chassis are in contact with the inner wall of the storage groove. Second reserved grooves are opened inside the placement plate located at the lower ends of the two sets of fastening plates. First reserved grooves are opened inside the fixed frame at the lower end of the second reserved grooves.

[0007] As a further scheme of the utility model, an adaptation structure is arranged at the upper end of the fastening plate. The adaptation structure includes an adapter. An adaptation groove is opened at the upper end of the fastening plate at the lower end of the adapter.

[0008] As a further scheme of the utility model, a reinforcement plate is fixedly arranged on one side of the adapter. A reinforcement groove is opened at the upper end of the fastening plate at the lower end of the reinforcement plate.

[0009] As a further solution of the present utility model, two stabilizing rods are movably arranged inside the horizontal plate, and the upper ends of the stabilizing rods are fixedly connected to the lower end of the chassis.

[0010] As a further solution of the present utility model, one end of the bidirectional lead screw passing through the chassis is fixedly connected to a handle.

[0011] As a further solution of the present utility model, two groups of screw rods are arranged on both sides of the inner wall of the horizontal plate, and the output ends of the screw rods pass through the horizontal plate and are threaded into the fixing frame.

[0012] The beneficial effects of the present utility model are as follows:

[0013] By setting the storage structure, when the length of the detected object is longer than the distance between the two fastening plates, the chassis and the fastening plates can be manually stored and moved downwards, so that the upper end of the placement plate is in a flat state, and larger objects to be detected can be placed, avoiding deformation caused by the lower end of the larger object being suspended, and at the same time, the fastening plates can be stored and protected to avoid deformation of the fastening plates caused by directly placing a longer object on the upper end of the fastening plates for hardness testing;

[0014] By setting the adaptation structure, when it is necessary to fasten a rectangular object, the adapter is directly inserted into the adaptation groove, and the bidirectional lead screw is rotated in cooperation, so that the flat sides of the two adapters fasten the rectangular object. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of a Rockwell hardness tester with a positioning structure according to the present utility model;

[0016] Figure 2 It is a sectional view of the fixing frame of a Rockwell hardness tester with a positioning structure according to the present utility model;

[0017] Figure 3 It is Figure 2 the enlarged structure diagram at A in

[0018] Figure 4 It is a connection structure diagram of the horizontal plate and the chassis of a Rockwell hardness tester with a positioning structure according to the present utility model;

[0019] Figure 5 It is a disassembled structure diagram of the adapter and the fastening plate of a Rockwell hardness tester with a positioning structure according to the present utility model.

[0020] In the figure: 1, fixing bracket; 2, driving cylinder; 3, test head; 4, placing plate; 5, storage groove; 6, chassis; 7, bidirectional lead screw; 8, slider; 9, connecting rod; 10, fastening plate; 11, storage structure; 12, cross plate; 13, first lead screw; 14, first reserved groove; 15, second reserved groove; 16, stabilizing rod; 17, adaptation structure; 18, adapter; 19, adaptation groove; 20, reinforcement plate; 21, reinforcement groove. Detailed implementation mode

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation mode.

[0022] As Figures 1-5 shown, a Rockwell hardness tester with a positioning structure includes a fixing bracket 1. A driving cylinder 2 is fixedly arranged at the upper end of the fixing bracket 1. A test head 3 is installed at the output end of the driving cylinder 2. A placing plate 4 is fixedly arranged inside the fixing bracket 1. A storage groove 5 is opened at the lower end of the fixing bracket 1. A chassis 6 is arranged inside the storage groove 5. A bidirectional lead screw 7 is arranged inside the chassis 6. Sliders 8 are threadedly arranged on the outer walls on both sides of the bidirectional lead screw 7. The upper end of the slider 8 passes through the limiting groove at the upper end of the chassis 6 and is fixedly connected with a connecting rod 9. A fastening plate 10 is fixedly arranged on one side of the connecting rod 9. A storage structure 11 is arranged at the lower end of the chassis 6. The storage structure 11 includes a cross plate 12 fixedly arranged on the inner wall of the storage groove 5. A first lead screw 13 is threadedly arranged inside the cross plate 12. The output end of the first lead screw 13 is rotationally connected with the lower end of the chassis 6. The front and rear ends of the chassis 6 are in contact with the inner wall of the storage groove 5. A second reserved groove 15 is opened inside the placing plate 4 located at the lower ends of the two fastening plates 10. A first reserved groove 14 is opened inside the fixing bracket 1 at the lower end of the second reserved groove 15.

[0023] In this embodiment, an adaptation structure 17 is arranged at the upper end of the fastening plate 10. The adaptation structure 17 includes an adapter 18. An adaptation groove 19 is opened at the upper end of the fastening plate 10 at the lower end of the adapter 18.

[0024] The adapter 18 is used to be inserted into the adaptation groove 19, so that one side of the adapter 18 can fasten a rectangular object. The adaptation groove 19 facilitates the insertion of the lower end of the adapter 18.

[0025] In this embodiment, a reinforcement plate 20 is fixedly arranged on one side of the adapter 18. A reinforcement groove 21 is opened at the upper end of the fastening plate 10 at the lower end of the reinforcement plate 20.

[0026] The reinforcement plate 20 enters into the reinforcement groove 21, thereby ensuring the stability of the adapter 18 entering into the adaptation groove 19.

[0027] In this embodiment, two stabilizing rods 16 are movably arranged inside the horizontal plate 12, and the upper ends of the stabilizing rods 16 are fixedly connected to the lower end of the chassis 6.

[0028] The stabilizing rods 16 ensure the stability of the upward movement of the chassis 6.

[0029] In this embodiment, a handle is fixedly connected to one end of the bidirectional lead screw 7 passing through the chassis 6.

[0030] The handle facilitates the operator to rotate the bidirectional lead screw 7.

[0031] In this embodiment, two groups of screw rods are arranged on both sides of the inner wall of the horizontal plate 12, and the output ends of the screw rods pass through the horizontal plate 12 and are threaded into the fixing frame 1.

[0032] It should be noted that the present utility model is a Rockwell hardness tester with a positioning structure. When it is necessary to fasten an object with a length greater than the distance between the two groups of fastening plates 10, the first lead screw 13 is rotated, thereby driving the chassis 6 to move downward, so that the connecting rod 9 drives the fastening plate 10 to move downward. First, it will pass through the second reserved groove 15, and then be received and hidden inside the first reserved groove 14, thereby receiving the connecting rod 9 and the fastening plate 10. At this time, the upper end of the placement plate 4 is in a flat state. When the test head 3 moves downward to detect the hardness of a larger object, the lower end of the object fits tightly with the upper end of the placement plate 4, avoiding deformation of the larger object;

[0033] When it is necessary to detect a circular object, the first lead screw 13 is rotated to reset the chassis 6, and the handle is rotated to drive the bidirectional lead screw 7 to rotate, so that the two groups of sliders 8 move towards the middle, thereby driving the two groups of fastening plates 10 to fasten the smaller circular object;

[0034] When it is necessary to fasten an object with a rectangular state on both sides, the adapter 18 is inserted into the adapter slot 19, so that the reinforcing plate 20 enters the reinforcing slot 21, and one end of the adapter 18 with a rectangular shape on one side fastens the rectangular object.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A Rockwell hardness tester with a positioning structure, comprising a fixed frame (1), a driving cylinder (2) being fixedly arranged at the upper end of the fixed frame (1), and a test head (3) being installed at the output end of the driving cylinder (2), characterized in that: A placement plate (4) is fixedly arranged inside the fixing frame (1), a storage groove (5) is provided at the lower end of the fixing frame (1), a chassis (6) is arranged inside the storage groove (5), a bidirectional screw rod (7) is arranged inside the chassis (6), sliders (8) are threadedly arranged on the outer walls of both sides of the bidirectional screw rod (7), the upper end of the slider (8) passes through the limiting groove at the upper end of the chassis (6) and is fixedly connected to a connecting rod (9), a fastening plate (10) is fixedly arranged on one side of the connecting rod (9), and a storage structure is provided at the lower end of the chassis (6). (11), the storage structure (11) comprises a horizontal plate (12) fixedly arranged on the inner wall of the storage groove (5), the internal thread of the horizontal plate (12) is provided with a first screw rod (13), the output end of the first screw rod (13) is rotatably connected to the lower end of the chassis (6), the front and rear ends of the chassis (6) are in contact with the inner wall of the storage groove (5), a second reserved groove (15) is provided inside the placement plate (4) located at the lower end of the two sets of fastening plates (10), and a first reserved groove (14) is provided inside the fixing frame (1) at the lower end of the second reserved groove (15).

2. The Rockwell hardness tester with a positioning structure according to claim 1, characterized in that: The upper end of the fastening plate (10) is provided with an adapting structure (17), the adapting structure (17) comprises an adapting part (18), and the upper end of the fastening plate (10) below the adapting part (18) is provided with an adapting groove (19).

3. The Rockwell hardness tester with a positioning structure according to claim 2, characterized in that: A reinforcing plate (20) is fixedly provided on one side of the adapter (18), and a reinforcing groove (21) is provided on the upper end of the fastening plate (10) at the lower end of the reinforcing plate (20).

4. The Rockwell hardness tester with a positioning structure according to claim 1, characterized in that: Two stabilizing rods (16) are movably arranged inside the transverse plate (12), and the upper ends of the stabilizing rods (16) are fixedly connected to the lower end of the chassis (6).

5. The Rockwell hardness tester with a positioning structure according to claim 1, characterized in that: One end of the bidirectional screw rod (7) passing through the chassis (6) is fixedly connected to a handle.

6. The Rockwell hardness tester with a positioning structure according to claim 1, characterized in that: Two groups of screw rods are arranged on both sides of the inner wall of the transverse plate (12), and the output ends of the screw rods pass through the transverse plate (12) through threads and enter into the interior of the fixing frame (1).

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