Eyepiece adjusting mechanism of Vickers hardness tester

Abstract

The utility model provides an eyepiece adjusting mechanism of a Vickers hardness tester, and relates to the technical field of Vickers hardness tester equipment. The eyepiece adjusting mechanism of the Vickers hardness tester comprises a mounting sleeve, a movable lens cone is slidably connected to the interior of the mounting sleeve, an eyepiece body is mounted in the movable lens cone, a threaded sleeve is rotatably connected to the interior of the mounting sleeve, and an external thread is arranged on the outer surface of the movable lens cone. According to the device, a driving bevel gear is driven to rotate on the inner wall of a mounting sleeve, under the meshing action of the driving bevel gear and a connecting bevel gear, a threaded sleeve is driven to rotate, and under the action of an external thread, a movable lens cone slides and ascends and descends in the mounting sleeve, so that the effect of adjusting an eyepiece body is achieved; the optical path of the Vickers hardness tester is changed, a worker can use the eyepiece body conveniently, and the situation that the installation position of the eyepiece body is affected by mistaken touch is prevented under the action of the driving gear limited by the limiting mechanism.

Description

Technical Field

[0001] The utility model relates to an eyepiece adjusting mechanism, specifically an eyepiece adjusting mechanism of a Vickers hardness tester, belonging to the technical field of Vickers hardness tester equipment. Background Technique

[0002] The Vickers hardness tester has a relatively large number of test forces. As long as the surface roughness of the workpiece meets the standard, the Vickers hardness tester can detect it. The Vickers hardness tester presses the surface of the workpiece through a stepping motor, and then the diagonal length of the indentation is measured by a reading microscope, and then the Vickers hardness is measured by using a conversion relationship between the diagonal and the test force. In addition, a Vickers hardness tester measurement software can be installed to display images through a computer display screen, making it more convenient and fast to operate and measure the hardness value.

[0003] Chinese Patent Publication No. CN215115693U discloses a micro Vickers hardness tester for mechanical tests, which relates to the micro field. The micro Vickers hardness tester for mechanical tests includes a machine body. A micrometer eyepiece is provided on the outer side of the upper end of the machine body, support feet are provided at the bottom end of the machine body, a base plate is provided on one side of the lower end of the machine body, a display screen is provided on the outer side of the upper end of the base plate, operation buttons are provided at the lower end of the base plate, a connecting block is provided in the middle of the machine body, a base is provided on the upper end of the connecting block, an operating rod is provided on the outer side of the base, a lifting column is provided on the upper end of the base, a gasket is provided at the bottom end of the lifting column, a flat workbench is provided on the lifting column, a variable load handwheel is provided on the upper side of the other side of the machine body, a turntable is provided on the lower side of the other side of the machine body, a connecting rod is provided on one side of the turntable, an indicating plate is provided on the lower end of the other side of the machine body, a connecting plate is provided on the upper side of the middle of the machine body, and a fixing plate is provided on the upper end of the connecting plate.

[0004] However, the inventor believes that the above device has certain defects. After adjusting the above device through the adjusting mechanism on one side of the eyepiece, it is not convenient to maintain the stable state after adjustment, and it is easy to accidentally touch the adjusting mechanism, which will cause a slight change in the position of the eyepiece and requires re-adjustment. Therefore, the utility model provides an eyepiece adjusting mechanism of a Vickers hardness tester. Content of the Utility Model

[0005] (1) Technical Problem to be Solved

[0006] The purpose of the utility model is to provide an eyepiece adjusting mechanism of a Vickers hardness tester to solve the problems in the prior art that it is not convenient to maintain the stable state after adjustment, it is easy to accidentally touch the adjusting mechanism, which will cause a slight change in the position of the eyepiece and requires re-adjustment.

[0007] (2) Technical Solution

[0008] The utility model is realized through the following technical solutions: An eyepiece adjusting mechanism of a Vickers hardness tester, including a mounting sleeve, an activity lens barrel is slidably connected inside the mounting sleeve, an eyepiece body is installed inside the activity lens barrel, a threaded sleeve is rotatably connected inside the mounting sleeve, an external thread is provided on the outer surface of the activity lens barrel, and the external thread is threadedly connected inside the threaded sleeve. A driving mechanism for driving the threaded sleeve to rotate is provided on the inner wall of the mounting sleeve. The driving mechanism includes a driving bevel gear rotating on the inner wall of the mounting sleeve, a connecting bevel gear is fixedly connected to the threaded sleeve, the driving bevel gear is meshed with the connecting bevel gear, and a limiting mechanism for restricting the rotation of the driving bevel gear is provided on the mounting sleeve.

[0009] Preferably, an inner sliding groove is opened on the inner wall of the mounting sleeve, a connecting sliding rod is fixedly connected to the activity lens barrel, and one end of the connecting sliding rod slides inside the inner sliding groove. The inner sliding groove and the connecting sliding rod are provided to enable the activity lens barrel to stably lift and slide inside the mounting sleeve and limit the activity lens barrel.

[0010] Preferably, a transparent cover communicating with the inner sliding groove is inlaid on the mounting sleeve, and a scale marking is provided on the transparent cover. The inner sliding groove and the scale marking are provided to facilitate observing the lifting amplitude of the activity lens barrel.

[0011] Preferably, a fixed seat is fixedly connected to the mounting sleeve, a driving rotating rod is rotatably connected inside the fixed seat, and the driving bevel gear is fixedly connected to one end of the driving rotating rod. By driving the driving rotating rod to rotate, the driving bevel gear rotates on the inner wall of the mounting sleeve.

[0012] Preferably, a rectangular sliding groove is opened at one end of the driving rotating rod, a rectangular sliding block is slidably connected inside the rectangular sliding groove, and a rotating sliding rod is fixedly connected to the rectangular sliding block. One end of the rotating sliding rod extends to one end of the driving rotating rod. By driving the rotating sliding rod to rotate, the driving rotating rod is driven to rotate under the action of the rectangular sliding block and the rectangular sliding groove.

[0013] Preferably, the limiting mechanism includes a rotating disk fixedly connected to one end of the rotating sliding rod, a plug rod is fixedly connected to the rotating disk, a fixed disk is fixedly connected to the fixed seat, and a jack adapted to the plug rod is opened on the fixed disk. By pushing the rotating sliding rod to slide inside the rectangular sliding groove, the plug rod is inserted into the jack to limit the rotation of the rotating sliding rod, thereby restricting the rotation of the driving rotating rod inside the fixed seat.

[0014] Preferably, a spring is provided inside the rectangular sliding groove, and the spring is sleeved on the rotating sliding rod. By providing the spring, the rotating sliding rod can quickly slide and reset in the non-force state.

[0015] The present utility model provides an eyepiece adjusting mechanism for a Vickers hardness tester, and its beneficial effects are as follows:

[0016] 1. The device drives the driving bevel gear to rotate on the inner wall of the mounting sleeve. Under the meshing action of the driving bevel gear and the connecting bevel gear, the threaded sleeve is driven to rotate. Under the action of the external thread, the movable lens barrel slides up and down inside the mounting sleeve, so as to adjust the eyepiece body, change the optical path of the Vickers hardness tester, facilitate the use of the eyepiece body by the staff, and prevent the driving gear from being accidentally touched and affecting the installation position of the eyepiece body under the action of the limiting mechanism.

[0017] 2. The device drives the rotating slide bar to rotate. Under the action of the rectangular chute and the eyepiece body, the driving rotating rod rotates inside the fixed seat, thereby driving the driving bevel gear to rotate inside the mounting sleeve. After the adjustment is completed, the rotating slide bar is pushed to slide inside the rectangular chute, and one end of the insertion rod is inserted into the insertion hole to limit the rotation of the rotating slide bar, thereby limiting the rotation of the driving rotating rod and preventing the rotating slide bar from being accidentally touched and rotated, improving the stability after adjustment.

[0018] 3. The device enables the movable lens barrel to stably slide up and down inside the mounting sleeve through the arranged connecting slide bar and inner chute, and limits it. Through the arranged transparent cover and scale markings, it is convenient to accurately adjust the sliding distance value of the movable lens barrel. Description of the Drawings

[0019] Figure 1 is the overall three-dimensional view of the present utility model;

[0020] Figure 2 is the three-dimensional view of the fixed seat structure of the present utility model;

[0021] Figure 3 is the Figure 2 magnified schematic view at A of the present utility model;

[0022] Figure 4 is the sectional three-dimensional view of the mounting sleeve of the present utility model;

[0023] Figure 5 is the sectional three-dimensional view of the rectangular chute of the present utility model.

[0024]

Description of the Main Component Symbols

[0025] 1. Mounting sleeve; 11. Inner chute; 12. Transparent cover; 2. Movable lens barrel; 21. Connecting slide bar; 22. External thread; 3. Eyepiece body; 4. Threaded sleeve; 5. Connecting bevel gear; 6. Driving bevel gear; 7. Fixed seat; 71. Fixed disk; 72. Jack; 8. Driving rotating rod; 81. Rotating slide bar; 82. Rectangular chute; 83. Rectangular slider; 84. Spring; 9. Rotating disk; 91. Plug rod. Detailed implementation mode

[0026] An embodiment of the present utility model provides an eyepiece adjustment mechanism for a Vickers hardness tester.

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , an eyepiece adjustment mechanism for a Vickers hardness tester, including a mounting sleeve 1, a movable lens barrel 2 is slidably connected inside the mounting sleeve 1, an inner chute 11 is provided on the inner wall of the mounting sleeve 1, a connecting slide bar 21 is fixedly connected to the movable lens barrel 2, and one end of the connecting slide bar 21 slides inside the inner chute 11. By providing the connecting slide bar 21 and the inner chute 11, the movable lens barrel 2 can slide stably inside the mounting sleeve 1. A transparent cover 12 communicating with the inner chute 11 is inlaid on the mounting sleeve 1, and a scale marking is provided on the transparent cover 12. By providing the transparent cover 12 and the scale marking, it is convenient to accurately adjust the sliding distance value of the movable lens barrel 2.

[0028] Please refer to again Figure 1 , Figure 2 and Figure 4 , an eyepiece body 3 is installed inside the movable lens barrel 2, a threaded sleeve 4 is rotatably connected inside the mounting sleeve 1, an external thread 22 is provided on the outer surface of the movable lens barrel 2, and the external thread 22 is threadedly connected inside the threaded sleeve 4. By driving the threaded sleeve 4 to rotate, the rotation of the movable lens barrel 2 is restricted by providing the inner chute 11 and the connecting slide bar 21, and the movable lens barrel 2 slides up and down inside the mounting sleeve 1 under the action of the external thread 22.

[0029] Please refer to again Figure 1 , Figure 2 , Figure 3 and Figure 4, a driving mechanism for driving the threaded sleeve 4 to rotate is provided on the inner wall of the mounting sleeve 1. The driving mechanism includes a driving bevel gear 6 rotatably mounted on the inner wall of the mounting sleeve 1. A connecting bevel gear 5 is fixedly connected to the threaded sleeve 4. The driving bevel gear 6 meshes with the connecting bevel gear 5. The connecting bevel gear 5 is a bevel gear with a hollow middle. The movable lens barrel 2 is arranged inside the connecting bevel gear 5, and the inner diameter value of the connecting bevel gear 5 is greater than the outer diameter value of the movable lens barrel 2. A fixed seat 7 is fixedly connected to the mounting sleeve 1. A driving rotating rod 8 is rotatably connected inside the fixed seat 7. The driving bevel gear 6 is fixedly connected to one end of the driving rotating rod 8. By driving the driving rotating rod 8 to rotate inside the fixed seat 7, the threaded sleeve 4 is driven to rotate under the meshing action of the driving bevel gear 6 and the connecting bevel gear 5.

[0030] Please refer to again Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a rectangular chute 82 is provided at one end of the driving rotating rod 8. A rectangular slider 83 is slidably connected inside the rectangular chute 82. A rotating sliding rod 81 is fixedly connected to the rectangular slider 83. One end of the rotating sliding rod 81 extends to one end of the driving rotating rod 8. A limiting mechanism for restricting the rotation of the driving bevel gear 6 is provided on the mounting sleeve 1. The limiting mechanism includes a rotating disk 9 fixedly connected to one end of the rotating sliding rod 81. A plug rod 91 is fixedly connected to the rotating disk 9. By driving the rotating disk 9 to rotate, the driving rotating rod 8 is driven to rotate under the action of the rotating sliding rod 81, the rectangular chute 82 and the rectangular slider 83. A fixed disk 71 is fixedly connected to the fixed seat 7. A jack 72 adapted to the plug rod 91 is provided on the fixed disk 71. After adjustment, the rotating disk 9 is pushed close to the driving rotating rod 8, so that one end of the plug rod 91 is inserted into the inside of the jack 72 to restrict the rotation of the rotating disk 9, thereby restricting the rotation of the driving rotating rod 8 and preventing accidental touch from affecting the position of the movable lens barrel 2 inside the mounting sleeve 1. A spring 84 is provided inside the rectangular chute 82. The spring 84 is sleeved on the rotating sliding rod 81. By providing the spring 84, the rotating sliding rod 81 forms a pressing action on the rectangular slider 83 when not under force.

[0031] Working principle: When in use, pull the rotating disc 9 to extract one end of the inserting rod 91 from the inside of the jack 72. Drive the rotating disc 9 to rotate. Under the action of the rotating slide bar 81, the rectangular chute 82 and the rectangular slider 83, drive the driving rotating rod 8 to rotate. Under the action of the driving bevel gear 6 and the connecting bevel gear 5, drive the threaded sleeve 4 to rotate inside the mounting sleeve 1. Under the action of the external thread 22, make the movable lens barrel 2 lift and slide inside the mounting sleeve 1. Adjust the distance of the eyepiece body 3 according to the observation result. Change the optical path by lifting the eyepiece body 3 until it is clear. After adjustment, insert the inserting rod 91 into the inside of the jack 72 to limit the rotation of the rotating disc 9. Under the action of the spring 84, form a pressing effect on the rectangular slider 83, so as to prevent accidental touch from affecting the position of the eyepiece body 3 inside the mounting sleeve 1.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An eyepiece adjustment mechanism for a Vickers hardness tester, comprising a mounting sleeve (1), characterized in that: The interior of the mounting sleeve (1) is slidably connected to a movable lens barrel (2), an eyepiece body (3) is installed inside the movable lens barrel (2), a threaded sleeve (4) is rotatably connected inside the mounting sleeve (1), an outer surface of the movable lens barrel (2) is provided with an external thread (22), the external thread (22) is threadedly connected to the interior of the threaded sleeve (4), the inner wall of the mounting sleeve (1) is provided with a driving mechanism for driving the threaded sleeve (4) to rotate, the driving mechanism comprises a driving bevel gear (6) rotating on the inner wall of the mounting sleeve (1), a connecting bevel gear (5) is fixedly connected to the threaded sleeve (4), the driving bevel gear (6) is meshed with the connecting bevel gear (5), and a limiting mechanism for limiting the rotation of the driving bevel gear (6) is provided on the mounting sleeve (1).

2. The eyepiece adjustment mechanism of a Vickers hardness tester according to claim 1, characterized in that: An inner sliding groove (11) is formed on the inner wall of the mounting sleeve (1), and a connecting sliding rod (21) is fixedly connected to the movable lens barrel (2), and one end of the connecting sliding rod (21) slides inside the inner sliding groove (11).

3. The eyepiece adjustment mechanism of a Vickers hardness tester according to claim 2, characterized in that: The installation sleeve (1) is inlaid with a transparent cover (12) which is connected to the inner slide groove (11), and the transparent cover (12) is provided with scale markings.

4. The eyepiece adjustment mechanism of a Vickers hardness tester according to claim 1, characterized in that: A fixing seat (7) is fixedly connected to the mounting sleeve (1), a driving rotating rod (8) is rotatably connected inside the fixing seat (7), and the driving bevel gear (6) is fixedly connected to one end of the driving rotating rod (8).

5. The eyepiece adjustment mechanism of a Vickers hardness tester according to claim 4, characterized in that: A rectangular slide groove (82) is provided at one end of the driving rotating rod (8), a rectangular slider (83) is slidably connected inside the rectangular slide groove (82), a rotating slide rod (81) is fixedly connected to the rectangular slider (83), and one end of the rotating slide rod (81) extends to one end of the driving rotating rod (8).

6. The eyepiece adjustment mechanism of a Vickers hardness tester according to claim 5, characterized in that: The limiting mechanism comprises a rotating disk (9) fixedly connected to one end of a rotating slide rod (81), an insertion rod (91) fixedly connected to the rotating disk (9), a fixed disk (71) fixedly connected to the fixed seat (7), and a plug hole (72) matched with the insertion rod (91) is provided on the fixed disk (71).

7. The eyepiece adjustment mechanism of a Vickers hardness tester according to claim 6, characterized in that: A spring (84) is provided inside the rectangular sliding groove (82), and the spring (84) is sleeved on the rotating sliding rod (81).

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