Portal hardness tester for detecting variable-diameter cylinder barrel

Abstract

The utility model provides a portal durometer for detecting a variable-diameter cylinder barrel. The portal durometer comprises a portal frame, a milling and pressing camera component, a supporting component and a lifting and overturning component, the supporting assembly is arranged below the portal frame in a sliding mode and used for supporting a workpiece and driving the workpiece to move. The milling and pressing camera shooting assembly is movably arranged on the portal frame and is used for sequentially milling and pressing the workpiece and shooting a pressed indentation; and the lifting and overturning assembly is arranged on the supporting assembly in a lifting mode and used for lifting the workpiece and driving the workpiece to overturn so as to change the machining and shooting positions of the milling and pressing camera shooting assembly on the workpiece. The gate-type durometer for detecting the variable-diameter cylinder barrel can meet the requirement that the hardness of oil cylinder barrels with different diameters can be measured on one set of equipment, and the resistance during overturning is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hardness testers, and more specifically, to a portal hardness tester for testing variable diameter cylinder barrels. Background Technology

[0002] After heat treatment, the hydraulic cylinders of hydraulic supports require hardness testing. Currently, there are two types of cylinder barrels: variable diameter and constant diameter. The outer diameter of the cylinder barrel ranges from Φ200mm to Φ800mm. Hardness testing requires testing at several different locations and rotating the cylinder 180°. This means the cylinder barrel needs to be tested on one side first, then unloaded, manually rotated 180°, and then loaded again to test the hardness of the other side. This process is cumbersome and inefficient.

[0003] Patent CN115356225B discloses an online hardness testing device and its testing method. The online hardness testing device includes a frame support system, a transmission system mounted on a base, an adjustable upper positioning height clamping system mounted on a base on one side of the main crossbeam, and a machining system, a force loading system, and a telescopic CCD hardness indentation optical measurement system mounted on a movable slide plate. It also includes a hydraulic system and an electrical control system. This online hardness testing device and its testing method can achieve adjustable upper positioning height clamping, automatic milling or grinding, automatic force loading, telescopic CCD hardness indentation optical measurement, automatic cylinder rotation support, and high-precision real-time control, achieving high accuracy and high reliability in indentation measurement. It enables batch online testing of Brinell and Rockwell hardness, meeting the high efficiency and high quality requirements of online hardness testing. However, this online hardness testing device has a complex structure, significant tilting resistance, and cannot meet the requirement of measuring the hardness of cylinder barrels with different diameter ranges on a single set of equipment. Utility Model Content

[0004] In order to meet the requirement of measuring the hardness of cylinder barrels with different diameter ranges on a single set of equipment and reduce the resistance during tilting, the technical solution adopted by this utility model is: a gantry hardness tester for detecting variable diameter cylinder barrels, including a gantry frame, a milling and pressing camera assembly, a support assembly and a lifting and tilting assembly.

[0005] The support assembly is slidably disposed below the gantry frame to support the workpiece and drive the workpiece to move.

[0006] The milling and pressing camera assembly is movably mounted on the gantry frame and is used to sequentially mill the workpiece, press it down, and capture images of the pressing marks.

[0007] The lifting and flipping assembly can be lifted and lowered on the support assembly to lift the workpiece and drive it to flip, thereby changing the processing and shooting position of the milling pressing camera assembly on the workpiece.

[0008] Based on the above, in order to facilitate the support of the workpiece, the support assembly includes a base, a base and several support blocks. The base is slidably disposed on the base, and the several support blocks are arranged on the base along the length direction of the workpiece. Each support block is provided with several V-shaped grooves of different depths.

[0009] Based on the above, in order to facilitate the flipping of the workpiece, the lifting and flipping assembly includes a plurality of roller mounting seats that are liftably connected to the base. The plurality of roller mounting seats and the plurality of support blocks are arranged at intervals. Each roller mounting seat is provided with a plurality of pairs of rollers. The plurality of pairs of rollers are arranged along the width direction of the workpiece and are used to flip the workpiece along the radial direction of the workpiece by relying on rolling friction.

[0010] Based on the above, in order to complete the milling, pressing, and timely imaging of the indentation of the workpiece, the milling and pressing camera assembly includes a crossbeam, a pressing head mounting base, a milling cutter, a camera mechanism, and a pressing head. The crossbeam is liftably mounted on the gantry frame, and the pressing head mounting base is laterally slidably mounted on the crossbeam. The milling cutter, the camera mechanism, and the pressing head are respectively mounted on the pressing head mounting base.

[0011] Based on the above, in order to facilitate the control of the milling cutter position during milling, a milling cutter lifting assembly is connected to the milling cutter, and the milling cutter is vertically connected to the pressure head mounting base through the milling cutter lifting assembly.

[0012] Based on the above, in order to improve the stability of the movement process, guide components are respectively provided on the gantry and the machine base.

[0013] Based on the above, several of the support blocks are slidably disposed on the base, and the sliding direction of the support blocks is parallel to the sliding direction of the base.

[0014] This invention represents a substantial advancement over existing technologies. Specifically, the gantry hardness tester for detecting variable-diameter cylinder barrels provided by this invention features a milling and pressing camera assembly, a support assembly, and a lifting and tilting assembly mounted on a gantry frame. This allows the milling and pressing camera assembly to sequentially mill and press the cylinder barrel, capturing images of the indentations. The lifting and tilting assembly lifts and tilts the cylinder barrel, changing its position on the cylinder barrel for processing and imaging. This enables the measurement of hardness of cylinder barrels with different diameters on a single device. Furthermore, during rotation and tilting, the workpiece can be disengaged from the support assembly, reducing the frictional resistance during cylinder barrel rotation.

[0015] Furthermore, by movably mounting a milling cutter assembly on the crossbeam, the oxide scale and base material on the surface of the cylinder barrel can be efficiently milled using the milling cutter assembly before measuring the hardness of the cylinder barrel, thereby ensuring the accuracy of the hardness measurement and improving the efficiency of measurement preparation.

[0016] Furthermore, by movably mounting a camera mechanism on the crossbeam, the highest point and height of the cylinder's cylindrical surface can be observed, facilitating milling operations. Simultaneously, the camera mechanism can also capture images of the indentations left by the pressure head on the cylinder, fix these images, and upload them to the Brinell hardness image processing system. This allows for timely acquisition and uploading of indentations, improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the portal hardness tester for detecting variable diameter cylinders provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the bottom structure of the portal hardness tester for detecting variable diameter cylinders provided by this utility model.

[0019] Figure 3 This is a schematic diagram of the end structure of the portal hardness tester for detecting variable diameter cylinders provided by this utility model.

[0020] Figure 4 This is a partial structural diagram of the portal hardness tester for detecting variable diameter cylinders provided by this utility model.

[0021] Figure 5 This is a schematic diagram of the base structure in the portal hardness tester for detecting variable diameter cylinders provided by this utility model.

[0022] In the diagram: 1. Base; 2. Base guide rail; 3. Base lead screw; 4. Base; 5. Support block; 6. Roller; 7. Roller mounting seat; 8. Crossbeam guide column; 9. Gantry frame; 10. Crossbeam; 11. Milling cutter; 12. Pressure head; 13. Camera mechanism; 14. Pressure head mounting seat; 15. Crossbeam guide rail; 16. Milling cutter lifting assembly; 17. Base slider; 18. V-groove; 19. Sprocket; 20. Variable diameter cylinder. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0024] Example 1

[0025] This embodiment provides a portal hardness tester for detecting variable diameter cylinder barrels, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a gantry frame 9, a milling and pressing camera assembly, a support assembly, and a lifting and tilting assembly.

[0026] The support assembly is slidably disposed below the gantry 9 to support the workpiece and drive its movement. The milling and pressing camera assembly is movably disposed on the gantry 9 to sequentially perform milling, pressing, and image capture of the pressing marks on the workpiece.

[0027] The lifting and flipping assembly can be lifted and lowered on the support assembly to lift the workpiece and drive it to flip, thereby changing the processing and shooting position of the milling pressing camera assembly on the workpiece.

[0028] Specifically, such as Figure 1 and Figure 5 As shown, the support assembly includes a base 1, a base 4, and several support blocks 5. The base 4 is slidably disposed on the base 1, and the several support blocks 5 are arranged on the base 4 along the length direction of the workpiece. Each support block 5 has several V-shaped grooves 18 of different depths.

[0029] like Figure 5 As shown, to facilitate workpiece flipping, the lifting and flipping assembly includes several roller mounting seats 7 that are liftably connected to the base 4. The roller mounting seats 7 and several support blocks 5 are arranged at intervals. Each roller mounting seat 7 is provided with several pairs of rollers 6, which are arranged along the width direction of the workpiece and are used to flip the workpiece along the radial direction by relying on rolling friction. Each pair of rollers 6 is provided with a sprocket 19, and the sprocket 19 is externally connected to a roller drive mechanism via a chain.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the milling pressure camera assembly includes a crossbeam 10, a pressure head mounting base 14, a milling cutter 11, a camera mechanism 13, and a pressure head 12. The crossbeam 10 is vertically and vertically mounted on the gantry frame 9, and the pressure head mounting base 14 is laterally slidably mounted on the crossbeam 10. The milling cutter 11, the camera mechanism 13, and the pressure head 12 are respectively mounted on the pressure head mounting base. The camera mechanism 13 is also externally connected to a Brinell hardness image processing system.

[0031] Example 2

[0032] This embodiment provides a portal hardness tester for detecting variable diameter cylinder barrels. The main difference from Embodiment 1 is that, in order to facilitate the control of the milling cutter position during milling, a milling cutter lifting assembly 16 is connected to the milling cutter 11. The milling cutter 11 is vertically connected to the pressure head mounting base 14 through the milling cutter lifting assembly 16.

[0033] Example 3

[0034] This embodiment provides a portal hardness tester for detecting variable diameter cylinder barrels. The main difference from Embodiment 1 is that in this embodiment: Figure 5 As shown, several support blocks are slidably disposed on the base, and the sliding direction of the support blocks is parallel to the sliding direction of the base. Specifically, for the variable-diameter cylinder 20, due to the change in the outer diameter of the cylinder, it is necessary to adjust the support method and support location. This can be achieved by changing the position of the support blocks to alter the spacing between adjacent support blocks, allowing the smaller diameter portion of the variable-diameter cylinder to be placed on the V-groove 18 of the support block, and the larger diameter portion to be placed on the roller mounting seat 7. Furthermore, by adjusting the lifting height of the roller mounting seat 7, the consistent height of the variable-diameter cylinder at the front and rear can be ensured.

[0035] Example 4

[0036] This embodiment provides a gantry hardness tester for detecting variable diameter cylinder barrels. The main difference from Embodiment 1 is that, in order to improve the stability of the movement process, guide components are respectively provided on the gantry frame 9, the base 1, and the crossbeam 10.

[0037] Specifically, the gantry frame is equipped with a crossbeam guide column 8, the base is equipped with a base guide rail 2 and a base screw 3, and the base screw 3 is externally connected to a screw drive motor. The crossbeam 10 is equipped with a crossbeam guide rail 15. The bottom of the base is equipped with a base slider 17.

[0038] Specifically, when using the portal hardness tester for detecting variable diameter cylinder barrels provided by this utility model to test the hardness of the variable diameter cylinder barrel, the specific operating steps are as follows:

[0039] First, lower the roller mounting seat 7 appropriately and place the workpiece on the adjacent support block 5 on the base 4. Use the V-groove 18 on the support block 5 and the roller mounting seat 7 at the rear end to support and position the front and rear ends of the workpiece.

[0040] Then, the base 4 is transported to the underside of the crossbeam 10 by the base drive motor and the base screw 3, and the crossbeam 10 and the position of the movable pressure head mounting seat 14 on the crossbeam 10 are lowered to ensure that the milling cutter 11 is directly above the workpiece; then the milling cutter 11 is driven to descend by the milling cutter lifting assembly 16, and the milling cutter 11 is driven by the milling cutter drive mechanism to mill the test surface of the workpiece.

[0041] Finally, the position of the indenter mounting base 14 on the crossbeam 10 is moved so that the indenter 12 moves to the test surface, and the crossbeam 10 is lowered. The selected test force is applied, and the indenter 12 creates an indentation on the test surface. Subsequently, the camera mechanism 13 captures, fixes, and uploads the image to the Brinell hardness image processing system. Using the test force, indenter parameters, and the selected calculation scale, the measured hardness result is calculated and displayed.

[0042] When a workpiece needs to be flipped on the V-groove for hardness testing, the roller mounting seats 7 at both ends are first raised and lowered from the base 4, causing the front end of the workpiece to disengage from the V-groove 18. After the workpiece disengages from the V-groove 18, the roller drive mechanism drives the roller 6 to rotate via the sprocket 19, thus flipping the workpiece on the roller 6. After flipping to a certain angle, the roller mounting seats 7 at both ends are lowered, allowing the front end of the workpiece to fall into the V-groove 18, while the rear end is supported on the rear roller mounting seat 7. The above steps of milling, pressing down the indenter to create an indentation, and capturing, fixing, and uploading images by the camera are repeated to complete the hardness testing at different locations.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A portal hardness tester for detecting variable diameter cylinder barrels, characterized in that: Includes gantry frame, milling and pressing camera assembly, support assembly, and lifting and tilting assembly; The support assembly is slidably disposed below the gantry frame to support the workpiece and drive the workpiece to move. The milling and pressing camera assembly is movably mounted on the gantry frame and is used to sequentially mill the workpiece, press it down, and capture images of the pressing marks. The lifting and flipping assembly can be lifted and lowered on the support assembly to lift the workpiece and drive it to flip, thereby changing the processing and shooting position of the milling pressing camera assembly on the workpiece.

2. The portal hardness tester for detecting variable diameter cylinder barrels according to claim 1, characterized in that: The support assembly includes a base, a base, and several support blocks. The base is slidably mounted on the base, and the several support blocks are arranged on the base along the length of the workpiece. Each support block has several V-shaped grooves of different depths.

3. The portal hardness tester for detecting variable diameter cylinder barrels according to claim 2, characterized in that: The lifting and flipping assembly includes several roller mounting seats that are liftably connected to the base. The roller mounting seats and several support blocks are arranged at intervals. Each roller mounting seat is provided with several pairs of rollers. The several pairs of rollers are arranged along the width direction of the workpiece and are used to flip the workpiece along the radial direction of the workpiece by relying on rolling friction.

4. The portal hardness tester for detecting variable diameter cylinder barrels according to claim 1, 2, or 3, characterized in that: The milling press-down camera assembly includes a crossbeam, a press head mounting base, a milling cutter, a camera mechanism, and a press head. The crossbeam is liftably mounted on the gantry frame, and the press head mounting base is laterally slidably mounted on the crossbeam. The milling cutter, the camera mechanism, and the press head are respectively mounted on the press head mounting base.

5. The portal hardness tester for detecting variable diameter cylinder barrels according to claim 4, characterized in that: The milling cutter is connected to a milling cutter lifting assembly, and the milling cutter is vertically connected to the pressure head mounting base through the milling cutter lifting assembly.

6. The portal hardness tester for detecting variable diameter cylinder barrels according to claim 2 or 3, characterized in that: Guide components are respectively provided on the gantry frame and the machine base.

7. The portal hardness tester for detecting variable diameter cylinder barrels according to claim 2 or 3, characterized in that: Several of the support blocks are slidably disposed on the base, and the sliding direction of the support blocks is parallel to the sliding direction of the base.

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