Product end hardness testing device

Abstract

The utility model belongs to the field of hardness testing devices, and discloses a product end hardness testing device which comprises a bearing assembly, a moving assembly and a testing assembly, the bearing assembly comprises a front top X-axis linear motor module, a front guide V-groove block and a rear guide V-groove block, the movable front top X-axis linear motor module and the front guide V-groove block are installed on the bearing base, the rear guide V-groove block is installed on a movable part of the movable front top X-axis linear motor module, and V-shaped grooves of the front guide V-groove block and the rear guide V-groove block are parallel and directly face each other. The front guide V-groove block and the rear guide V-groove block are arranged in the X direction, and the faces, away from each other, of the front guide V-groove block and the rear guide V-groove block are each provided with a blocking piece for blocking the side face of the V-shaped groove. The testing assembly is installed on the moving assembly, and a testing machine head horizontally faces the front guiding V-groove block. According to the utility model, the test machine head is horizontally arranged, and the bearing assembly is arranged to fix the product to be tested, so that the hardness test of the end part of the product is realized through a simple mechanism.

Description

Technical Field

[0001] The utility model relates to the field of hardness detection, in particular to a product end hardness testing device. Background Art

[0002] Hardness is the ability of a material to resist the penetration of a harder object. Hardness testing is a key indicator of material performance. Common hardness scales include Brinell, Rockwell, and Vickers. Testing methods involve applying force to a test indenter, leaving an indentation on the surface of the test piece. The size of the indentation then determines the hardness of the test piece.

[0003] Traditional testing devices use a vertically downward-facing indenter, with the V-groove for sample placement located below the indenter. This means that once the sample is positioned, only the side hardness of the sample can be tested, not the end hardness. This makes it impossible to test the hardness of the ends of products like nuts and bolts after they undergo end hardening processes like high-frequency quenching and nitriding. Therefore, specialized testing devices are required to facilitate testing the end hardness of products.

[0004] Utility model patent publication number CN216978696U discloses a device for testing and positioning the hardness of cylindrical sample ends. The device features an electromagnetic block mounted above a hardness tester's test platform, with object racks and counterweight racks mounted on the left and right sides of the electromagnetic block. A first connecting block and a second connecting block connect the object rack and counterweight rack to the outsides of the rack and counterweight rack, respectively. This allows the device to accommodate objects of various lengths. The counterweight rack and the second extending rack cooperate to facilitate placement of the counterweight in the appropriate position for stabilization. The device is complex in structure and can be cumbersome to test.

[0005] Based on this, the present invention proposes another structure to implement the product end hardness test. Utility Model Content

[0006] In order to improve the deficiencies of the prior art, the purpose of the present invention is to provide a product end hardness testing device, which places the test head horizontally and provides a supporting assembly to fix the product to be tested, thereby achieving hardness testing of the product end through a simple mechanism.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A product end hardness testing device comprises a supporting component, a moving component and a testing component;

[0009] The supporting assembly includes a front top X-axis linear motor module, a front guide V-groove block, and a rear guide V-groove block. The front top X-axis linear motor module and the front guide V-groove block are installed on the supporting base, and the rear guide V-groove block is installed on the moving part of the front top X-axis linear motor module. The V-grooves of the front guide V-groove block and the rear guide V-groove block are parallel to each other and directly opposite, and the front guide V-groove block and the rear guide V-groove block are arranged along the X direction. The front guide V-groove block and the rear guide V-groove block are respectively provided with a blocking piece that blocks the side surface of the V-groove on the side away from each other.

[0010] The moving assembly includes a telescopic X-axis linear motor module, a Y-axis linear motor module, and a Z-axis lifting motor module; the fixed portion of the Z-axis lifting motor module is installed on the mounting frame, the fixed portion of the Y-axis linear motor module is installed on the top of the lifting portion of the Z-axis lifting motor module, and the fixed portion of the telescopic X-axis linear motor module is installed on the moving portion of the Y-axis linear motor module;

[0011] The testing assembly includes a hardness testing head and a control panel; the hardness testing head is fixed to the moving part of the telescopic X-axis linear motor module, and the testing head of the hardness testing head is horizontally facing the front guide V-groove block; the control panel is electrically controlled and connected to the hardness testing head.

[0012] In the present invention, preferably, the top of the lifting part of the Z-axis lifting motor module passes through the mounting frame and is fixed with a horizontal support plate, and the fixed part of the Y-axis linear motor module is fixed on the horizontal support plate and thus installed on the moving part of the Z-axis lifting motor module.

[0013] In the present invention, preferably, the upper portion of the front guide V-groove block and the upper portion of the rear guide V-groove block are support surfaces that are angled with each other, and the angle is not less than 100°.

[0014] In the present invention, preferably, the control panel is provided with at least a power switch, a test key and a display screen.

[0015] In the present invention, preferably, the supporting base is also fixed on the mounting frame, and the space below the supporting base forms a storage space.

[0016] In the present invention, preferably, a dustproof protective cover is provided on the periphery of the mounting frame, the moving component and the testing component are both arranged on the inner side of the dustproof protective cover, and the side of the dustproof protective cover facing the front guide V-groove block is open.

[0017] In the present invention, preferably, vertical downward guide columns are provided at the four corners of the lower bottom surface of the horizontal plate, and the mounting frame is provided with guide cylinders corresponding to the guide columns. The interior of the guide cylinder is a hollow structure, and the guide column is slidably connected in the guide cylinder.

[0018] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. The product end hardness testing device of the present invention places the test head horizontally and provides a supporting assembly to fix the product to be tested, thereby achieving the hardness test of the product end through a simple mechanism.

[0020] 2. The product end hardness testing device of the present invention fixes the test head by setting a moving component, which can realize the up, down, left, right, and forward and backward movement of the test head, thereby facilitating alignment with the end of the product to be tested and performing multi-point testing on the product.

[0021] 3. The product end hardness testing device of the present invention realizes stable movement of the test head by installing a lifting linear motor on a horizontal support plate and sliding cooperation between a guide column and a guide cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 It is a structural schematic diagram of the utility model from another angle.

[0024] Among them, the meanings of the marks in the figure are: 1-support base, 101-heightening block, 2-front top X-axis linear motor module, 201-moving part of the front top X-axis linear motor module, 3-rear guide V-groove block, 4-front guide V-groove block, 5-block, 6-control panel, 7-hardness testing head, 701-test head, 8-telescopic X-axis linear motor module, 9-Y-axis linear motor module, 10-horizontal support plate, 11-guide column, 12-guide cylinder, 13-Z-axis lifting motor module, 14-mounting frame, 15-product to be tested. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] See also Figure 1 The figure below is a schematic diagram of the overall structure of a device for testing the end hardness of a product. It consists of three main parts: a support assembly, a moving assembly, and a testing assembly. The support assembly is used to secure the product to be tested, such as a bolt or nut. The product is typically rod-shaped, but can be cylindrical or square. The moving assembly is used to move the testing assembly to the appropriate position. The testing assembly then performs the hardness test on the product.

[0027] See also Figure 1 and Figure 2 The supporting assembly includes a front top X-axis linear motor module 2, a front guide V-groove block 4, and a rear guide V-groove block 3. The front top X-axis linear motor module 2 and the front guide V-groove block 4 are mounted on a supporting base 1. The supporting base 1 can be mounted on the mounting frame 14 of the device as a whole. The rear guide V-groove block 3 is mounted on the moving part 201 of the front top X-axis linear motor module. Therefore, the rear guide V-groove block 3 can follow the movement in the X direction. The V-grooves of the front guide V-groove block 4 and the rear guide V-groove block 3 are parallel to each other, and the front guide V-groove block 4 and the rear guide V-groove block 3 are arranged along the X direction. Specifically, the front guide V-groove block 4 can be installed by raising the block 101 to keep the front guide V-groove block 4 and the rear guide V-groove block 3 at the same height. With this design, the rear guide V-groove block 3 will approach the front guide V-groove block 4 when moving in the X direction. The utility model also provides a baffle 5 on the side of the front guide V-groove block 4 and the rear guide V-groove block 3 that is away from each other to block the side of the V-groove. During the test, the front guide V-groove block 4 and the rear guide V-groove block 3 are separated by a certain distance, and the product to be tested 15 is placed in the V-grooves of the front guide V-groove block 4 and the rear guide V-groove block 3, and is located between the two baffles 5. When the rear guide V-groove block 3 follows the front top X-axis linear motor module 2 to move in the X direction, the two baffles 5 will press the product to be tested 15, thereby achieving firm fixation of the product to be tested 15.

[0028] See also Figure 1 and Figure 2 The moving component includes a telescopic X-axis linear motor module 8, a Y-axis linear motor module 9 and a Z-axis lifting motor module 13, which are installed in sequence from top to bottom; the fixed part of the Z-axis lifting motor module 13 is installed on the mounting frame 14, the fixed part of the Y-axis linear motor module 9 is installed on the top of the lifting part of the Z-axis lifting motor module 13, and the fixed part of the telescopic X-axis linear motor module 8 is installed on the moving part of the Y-axis linear motor module 9; as the lifting part of the Z-axis lifting motor module 13 rises and falls, the Y-axis linear motor module 9 and the telescopic X-axis linear motor module 8 can be driven to rise and fall, and as the moving part of the Y-axis linear motor module 9 moves forward and backward, the telescopic X-axis linear motor module 8 can be driven to move forward and backward.

[0029] Continue to see Figure 1 and Figure 2The test assembly includes a hardness test head 7 and a control panel 6. The hardness test head 7 is fixed to the movable portion of the telescopic X-axis linear motor module 8, with the test head 701 of the hardness test head 7 horizontally facing the front guide V-groove block 4. The control panel 6 is electrically connected to the hardness test head 7. Similarly, the hardness test head 7 can rise and fall with the rise and fall of the lift portion of the Z-axis lift motor module 13, move forward and backward with the forward and backward movement of the movable portion of the Y-axis linear motor module 9, and move left and right with the movement of the telescopic X-axis linear motor module 8. After adjustment, the test head can be aligned with the end of the product under test 15 for testing.

[0030] With the above configuration, the specific method of the present invention for conducting product end testing is as follows:

[0031] 1. According to the length of the product to be tested 15, the front top X-axis linear motor module 2 is operated to adjust the distance between the front guide V-groove block 4 and the rear guide V-groove block 3 to an appropriate value, that is, the distance between the two baffles 5 is slightly larger than the length of the product;

[0032] 2. Place the product to be tested 15 into the V-grooves of the front guide V-groove block 4 and the rear guide V-groove block 3;

[0033] 3. Through the operation of the front top X-axis linear motor module 2, the product to be tested 15 is clamped between the two blocking pieces 5 of the front guide V-groove block 4 and the rear guide V-groove block 3;

[0034] 4. By operating the telescopic X-axis linear motor module 8, the Y-axis linear motor module 9, and the Z-axis lifting motor module 13, the hardness test head 7 is adjusted to align with the end of the product to be tested 15, thereby performing the measurement;

[0035] 5. By simply moving the Y-axis linear motor module 9 back and forth, multi-point hardness testing of the end can be performed.

[0036] In some preferred embodiments of the present invention, the structure can be further optimized. For example, the top of the lifting part of the Z-axis lifting motor module 13 passes through the mounting bracket 14 and is fixed with a horizontal support plate 10. The fixed part of the Y-axis linear motor module 9 is fixed on the horizontal support plate 10 and thus installed on the moving part of the Z-axis lifting motor module 13. By setting the horizontal support plate 10, the Y-axis linear motor module 9 can be installed more conveniently and stably. Furthermore, the present invention can also set vertically downward guide columns 11 at the four corners of the lower bottom surface of the horizontal plate, and the mounting bracket 14 is provided with a guide cylinder 12 corresponding to the guide column 11. The interior of the guide cylinder 12 is a hollow structure, and the guide column 11 is slidably connected in the guide cylinder 12. Through the sliding cooperation of the guide column 11 and the guide cylinder 12, the moving direction of the horizontal support plate 10 and the Y-axis linear motor module 9 can be better defined, thereby achieving stable movement of the test head.

[0037] In some preferred embodiments of the present invention, the upper part of the front guide V-groove block 4 and the upper part of the rear guide V-groove block 3 are support surfaces at angles to each other, and the angle is not less than 100°, more preferably not less than 120°, which can support products 15 to be tested of different diameters.

[0038] In some preferred embodiments of the present invention, the control panel 6 is provided with at least a power switch, a test key and a display screen. The power switch key is used to turn on and off the hardness testing head 7, the test key is used to start the test, and the display screen can conveniently display the test value.

[0039] In some preferred embodiments of the present invention, the supporting base 1 is also fixed on the mounting frame 14, and the space below the supporting base 1 forms a storage space for placing some tools, sundries or samples to be tested.

[0040] In some preferred embodiments of the present invention, a dust cover is provided around the mounting frame 14. The moving assembly and the testing assembly are both located inside the dust cover. The dust cover is open on the side facing the front guide V-groove block 4. The dust cover protects the testing machine head from dust. The dust cover can be made of transparent plastic.

[0041] The product end hardness testing device of the present invention places the test head 701 horizontally and sets a supporting assembly to fix the product to be tested 15, thereby realizing the hardness test of the product end through a simple mechanism. On the basis of the structure of the present invention, some functional expansions can also be made. For example, the control panel 6 is a product of an integrated control unit. Through the electrical control connection with the front top X-axis linear motor module 2, the telescopic X-axis linear motor module 8, the Y-axis linear motor module 9 and the Z-axis lifting motor module 13, the intelligent control of several modules is realized. Through the calculation function of the control unit, after the diameter and length of the product to be tested are input, the moving distance of the front top X-axis linear motor module 2 can be controlled to realize automatic adjustment and product compression; the height of the moving head can be automatically adjusted. After the single-point test is completed, the Y-axis linear motor module 9 automatically moves back and forth to realize multi-point automatic testing.

[0042] Any utility model creation is to create something new through the application and combination of existing technologies. There are infinite possibilities for the primary and secondary judgments of many technical problems and the application and combination of many technical means. The above is only a description of the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this field, several improvements can be made without departing from the principles of the utility model. These improvements should also be regarded as the scope of protection of the utility model.

Claims

1. A product end hardness testing device, characterized by: Including supporting components, moving components and testing components; The supporting assembly includes a front top X-axis linear motor module, a front guide V-groove block, and a rear guide V-groove block. The front top X-axis linear motor module and the front guide V-groove block are installed on the supporting base, and the rear guide V-groove block is installed on the moving part of the front top X-axis linear motor module. The V-grooves of the front guide V-groove block and the rear guide V-groove block are parallel to each other and directly opposite, and the front guide V-groove block and the rear guide V-groove block are arranged along the X direction. The front guide V-groove block and the rear guide V-groove block are respectively provided with a blocking piece that blocks the side surface of the V-groove on the side away from each other. The moving assembly includes a telescopic X-axis linear motor module, a Y-axis linear motor module, and a Z-axis lifting motor module; the fixed portion of the Z-axis lifting motor module is installed on the mounting frame, the fixed portion of the Y-axis linear motor module is installed on the top of the lifting portion of the Z-axis lifting motor module, and the fixed portion of the telescopic X-axis linear motor module is installed on the moving portion of the Y-axis linear motor module; The testing assembly includes a hardness testing head and a control panel; The hardness testing machine head is fixed on the moving part of the telescopic X-axis linear motor module, and the testing head of the hardness testing machine head is horizontally facing the front guide V-groove block; the control panel is electrically controlled and connected to the hardness testing machine head.

2. The product end hardness testing device according to claim 1, characterized in that: The top of the lifting part of the Z-axis lifting motor module passes through the mounting frame and is fixed with a horizontal support plate. The fixed part of the Y-axis linear motor module is fixed on the horizontal support plate and thus installed on the moving part of the Z-axis lifting motor module.

3. The product end hardness testing device according to claim 1, characterized in that: The upper portion of the front guide V-groove block and the upper portion of the rear guide V-groove block are both supporting surfaces that are angled with each other, and the angle is not less than 100°.

4. The product end hardness testing device according to claim 1, characterized in that: The control panel is at least provided with a power switch, a test key and a display screen.

5. The product end hardness testing device according to claim 1, characterized in that: The supporting base is also fixed on the mounting frame, and the space below the supporting base forms a storage space.

6. The product end hardness testing device according to claim 1, characterized in that: A dustproof protective cover is arranged on the periphery of the mounting frame, and the moving component and the testing component are both arranged on the inner side of the dustproof protective cover, and the side of the dustproof protective cover facing the front guide V-groove block is open.

7. The product end hardness testing device according to claim 2, characterized in that: The four corners of the lower bottom surface of the horizontal support plate are provided with vertical downward guide columns, and the mounting frame is provided with guide cylinders corresponding to the guide columns. The interior of the guide cylinder is a hollow structure, and the guide column is slidably connected in the guide cylinder.

Images