Automobile piston hardness detection device

Abstract

The utility model provides an automobile piston hardness detection device, which relates to the technical field of piston detection and comprises a base, a positioning component for fixing a piston is arranged on one side of the base, a portal frame is fixedly mounted on the upper surface of the base, and a cylinder is fixedly mounted on the upper surface of the portal frame. According to the piston hardness testing device, a worker places a piston on the surface of the base, then the positioning assembly is started to position the piston, then the worker starts the air cylinder, the output end of the air cylinder drives the lifting plate and the pressing block to descend, the pressing block can press the piston, and therefore hardness testing is carried out; a worker controls the lead screw to rotate, the rotating lead screw drives the moving frame and the arc-shaped plates to move in the direction of the sliding rod in a threaded screwing-in mode, the two arc-shaped plates are attached to each other and shield the piston, the situation that the piston is prone to burst and splashing when subjected to external pressure is avoided, and the worker is effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of piston testing technology, and more specifically, to a device for testing the hardness of automotive pistons. Background Technology

[0002] An automotive piston hardness testing device is used to measure the hardness of piston materials to ensure they meet design requirements and guarantee engine performance and lifespan. An existing piston hardness testing device, with publication number CN220120603U, includes a testing piston and a base plate. A first electric telescopic rod is fixedly installed at the center of the top of the base plate. The testing piston is positioned at the output end of the first electric telescopic rod. The base plate has four sets of U-shaped limiting clamps arranged in a circular array, with the grooves of all four U-shaped limiting clamps facing the testing piston. In this invention, the first electric telescopic rod moves the testing piston downwards until the bottom of the testing piston rests on the inner bottom wall of the U-shaped limiting clamp (the testing piston disengages from the first electric telescopic rod). A third electric telescopic rod moves the U-shaped limiting clamp, causing the bottom of the groove of the U-shaped limiting clamp to contact the side of the testing piston. Finally, a second electric telescopic rod moves a pressure plate downwards, pressing the pressure plate against the side of the top surface of the testing piston, thus securing the testing piston and providing stability for hardness testing.

[0003] However, in the above scheme, after the piston is pressed down to test its hardness in the detection structure of the piston hardness detection device, the piston is prone to bursting and splashing when subjected to external pressure. When the piston bursts and splashes, the high-speed flying metal fragments may cause injury to the operator or nearby staff. Utility Model Content

[0004] The main purpose of this invention is to provide an automotive piston hardness testing device, which can effectively solve the problem in the prior art piston hardness testing device where, after the testing structure presses down on the piston to test its hardness, the piston is prone to bursting and splashing when subjected to external pressure. When the piston bursts and splashes, the high-speed flying metal fragments may cause injury to the operator or nearby workers.

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

[0006] An automotive piston hardness testing device includes a base, and a positioning component for fixing the piston is provided on one side of the base.

[0007] A gantry frame is fixedly installed on the upper surface of the base, and a cylinder is fixedly installed on the upper surface of the gantry frame. The output end of the cylinder passes through the gantry frame and the lifting plate, and a pressure block is fixedly installed thereon.

[0008] Both sides of the inner wall of the gantry are equipped with protective components for protection.

[0009] Preferably, the protection component includes a lead screw, which is rotatably mounted on the corresponding side of the inner wall of the gantry frame. The lead screw is threaded with a movable frame, and a movable block is slidably disposed within the movable frame. An arc-shaped plate is fixedly installed on one side of the movable block.

[0010] Preferably, slide bars are fixedly installed on both sides of the inner wall of the gantry frame, and the two movable frames are slidably arranged on one side of the corresponding slide bar.

[0011] Preferably, the inner wall of the gantry frame is provided with through slots on both sides, and the lower surface of the lifting plate is provided with corresponding through slots on both sides and fixedly installed with racks.

[0012] Both lead screws have their ends, which are far apart from each other, passing through the gantry frame and fitted with gears. The two gears mesh with their respective racks.

[0013] Preferably, springs are provided on one side of the inner wall of both movable frames.

[0014] Preferably, limit grooves are formed through both sides of the inner wall of the two movable frames, and limit blocks are fixedly installed on both sides of the two movable blocks, with each limit block slidingly disposed in the corresponding limit groove.

[0015] Preferably, the positioning component includes a movable groove, which is formed on the upper surface of the base. Two movable blocks are slidably disposed in the movable groove, and a top plate is fixedly installed on the upper surface of each of the two movable blocks.

[0016] A bidirectional threaded rod is rotatably installed between the two sides of the inner wall of the movable groove, and the two movable blocks are respectively threaded onto both sides of the bidirectional threaded rod body;

[0017] A motor is fixedly installed on one side of the base, and one end of the bidirectional threaded rod passes through the base and is fixedly connected to the output shaft of the motor.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The staff places the piston on the base surface and then activates the positioning component to position the piston. Then the staff starts the cylinder, which drives the lifting plate and the pressure block to descend, so that the pressure block can press the piston to perform a hardness test. When the pressure block presses the piston, the staff controls the screw to rotate. The rotating screw drives the moving frame and the arc plate to move along the slide bar direction by screwing in the thread, so that the two arc plates are in contact and shield the piston, preventing the piston from bursting and splashing when subjected to external pressure, thus effectively protecting the staff. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an automotive piston hardness testing device according to the present invention.

[0021] Figure 2 This is a front view structural diagram of an automotive piston hardness testing device according to the present invention;

[0022] Figure 3 This utility model relates to an automotive piston hardness testing device. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0023] Figure 4 This is a schematic diagram of the other side of the structure of the automotive piston hardness testing device of this utility model;

[0024] Figure 5 This utility model relates to an automotive piston hardness testing device. Figure 3 Enlarged schematic diagram of the structure at point A;

[0025] Figure 6 This utility model relates to an automotive piston hardness testing device. Figure 4 Enlarged schematic diagram of the structure at point B.

[0026] In the diagram: 1. Base; 2. Positioning component; 201. Moving slot; 202. Movable block; 203. Top plate; 204. Two-way threaded rod; 205. Motor; 3. Gantry frame; 4. Cylinder; 401. Lifting plate; 5. Pressure block; 6. Protection component; 601. Lead screw; 602. Moving frame; 603. Moving block; 604. Arc plate; 605. Slide rod; 7. Through slot; 8. Rack; 9. Gear; 10. Spring; 11. Limiting slot; 12. Limiting block. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0028] like Figures 1-6 As shown, an automotive piston hardness testing device includes a base 1, and a positioning component 2 for fixing the test piece is provided on one side of the base 1.

[0029] A gantry frame 3 is fixedly installed on the upper surface of the base 1. A cylinder 4 is fixedly installed on the upper surface of the gantry frame 3. The output end of the cylinder 4 passes through the gantry frame 3 and through the lifting plate 401 and is fixedly installed with a pressure block 5.

[0030] Both sides of the inner wall of the gantry frame 3 are equipped with protective components 6 for protection.

[0031] The protective component 6 includes a lead screw 601, which is rotatably installed on the corresponding side of the inner wall of the gantry frame 3. The lead screw 601 has a threaded movable frame 602, and a movable block 603 is slidably installed inside the movable frame 602. An arc plate 604 is fixedly installed on one side of the movable block 603.

[0032] Slide rods 605 are fixedly installed on both sides of the inner wall of the gantry frame 3, and two movable frames 602 are slidably set on one side of the corresponding slide rod 605.

[0033] The operator places the piston on the surface of the base 1, then activates the positioning component 2 to position the piston. Next, the operator activates the cylinder 4, causing its output end to lower the lifting plate 401 and the pressure block 5, allowing the pressure block 5 to press the piston for a hardness test. While the pressure block 5 is pressing the piston, the operator controls the lead screw 601 to rotate. The rotating lead screw 601, through threaded advancement, moves the moving frame 602 and the arc plate 604 along the slide rod 605, causing the two arc plates 604 to come into contact and shield the piston, preventing it from bursting and scattering under external pressure, thus effectively protecting the operator.

[0034] In another embodiment of the present invention, through slots 7 are provided on both sides of the inner wall of the gantry frame 3, and corresponding through slots 7 are provided on both sides of the lower surface of the lifting plate 401 and racks 8 are fixedly installed thereon.

[0035] The two lead screws 601 have their shafts far apart from each other, both passing through the gantry frame 3 and fitted with gears 9. The two gears 9 mesh with the corresponding racks 8 respectively.

[0036] When the lifting plate 401 moves, the rack 8 moves along with the lifting plate 401. Under the meshing action of the rack 8 and the gear 9, the lead screw 601 rotates, causing the arc plate 604 to move. After the arc plate 604 is in contact, the moving block 603 can continue to move along the moving frame 602, avoiding jamming. Through the cooperation of the gear 9 and the rack 8, the lead screw 601 rotates, eliminating the need for staff to set up an additional power source to drive the lead screw 601 to rotate, thus improving the utilization rate of power.

[0037] In another embodiment of this utility model, springs 10 are provided on one side of the inner wall of each of the two movable frames 602.

[0038] By setting the spring 10, when the moving block 603 moves along the moving frame 602, the spring 10 is compressed and gives the moving block 603 a reverse thrust, so that the two arc plates 604 fit more tightly and enhance the protection effect.

[0039] In another embodiment of the present invention, limit grooves 11 are provided through both sides of the inner wall of the two movable frames 602, and limit blocks 12 are fixedly installed on both sides of the two movable blocks 603, with each limit block 12 slidably disposed in the corresponding limit groove 11.

[0040] By setting the limiting groove 11 and the limiting block 12, the situation where the moving block 603 detaches from the inside of the moving frame 602 during movement is prevented.

[0041] In another embodiment of the present invention, the positioning component 2 includes a movable groove 201, which is opened on the upper surface of the base 1. Two movable blocks 202 are slidably arranged in the movable groove 201, and a top plate 203 is fixedly installed on the upper surface of the two movable blocks 202.

[0042] A bidirectional threaded rod 204 is rotatably installed between the two sides of the inner wall of the movable groove 201, and the two movable blocks 202 are respectively threaded onto both sides of the bidirectional threaded rod 204.

[0043] A motor 205 is fixedly installed on one side of the base 1, and one end of the bidirectional threaded rod 204 passes through the base 1 and is fixedly connected to the output shaft end of the motor 205.

[0044] After the piston is placed on the surface of the base 1, the operator starts the motor 205, which drives the bidirectional threaded rod 204 to rotate through its output shaft. The rotating bidirectional threaded rod 204 drives the two movable blocks 202 through the threaded advance, so that the top plate 203 positions the piston.

[0045] The working principle of this automotive piston hardness testing device:

[0046] During use, the operator places the piston on the surface of the base 1, then activates the positioning component 2 to position the piston. The operator then activates the cylinder 4, causing its output end to drive the lifting plate 401 and the pressure block 5 to descend, allowing the pressure block 5 to press the piston for hardness testing. While the pressure block 5 is pressing the piston, the operator controls the lead screw 601 to rotate. The rotating lead screw 601 drives the moving frame 602 and the arc plate 604 to move along the slide rod 605 through the threaded advance, so that the two arc plates 604 fit together and shield the piston, preventing the piston from easily bursting and splashing when subjected to external pressure, thus effectively protecting the operator.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A device for testing the hardness of automotive pistons, comprising a base (1), characterized in that: The base (1) is provided with a positioning component (2) for fixing the test piece on one side; A gantry frame (3) is fixedly installed on the upper surface of the base (1), and a cylinder (4) is fixedly installed on the upper surface of the gantry frame (3). The output end of the cylinder (4) passes through the gantry frame (3) and through the lifting plate (401), and a pressure block (5) is fixedly installed thereon. The inner walls of the gantry (3) are equipped with protective components (6) on both sides.

2. The automotive piston hardness testing device according to claim 1, characterized in that: The protective component (6) includes a lead screw (601), which is rotatably mounted on the inner wall of the gantry frame (3) on the corresponding side. The lead screw (601) has a movable frame (602) threaded on its body. A movable block (603) is slidably arranged inside the movable frame (602). An arc plate (604) is fixedly installed on one side of the movable block (603).

3. The automotive piston hardness testing device according to claim 2, characterized in that: The gantry frame (3) has slide rods (605) fixedly installed on both sides of its inner wall, and the two movable frames (602) are respectively slidably set on one side of the corresponding slide rod (605).

4. The automotive piston hardness testing device according to claim 3, characterized in that: The inner walls of the gantry (3) are provided with through slots (7) on both sides, and the lower surfaces of the lifting plate (401) are provided with corresponding through slots (7) and racks (8) are fixedly installed on both sides. The two lead screws (601) have their shafts far apart from each other, both passing through the gantry frame (3) and fitted with gears (9). The two gears (9) mesh with the corresponding racks (8).

5. The automotive piston hardness testing device according to claim 4, characterized in that: Springs (10) are provided on one side of the inner wall of both of the movable frames (602).

6. The automotive piston hardness testing device according to claim 5, characterized in that: Limiting grooves (11) are provided on both sides of the inner wall of the two movable frames (602), and limiting blocks (12) are fixedly installed on both sides of the two movable blocks (603). Each limiting block (12) is slidably disposed in the corresponding limiting groove (11).

7. The automotive piston hardness testing device according to claim 5, characterized in that: The positioning component (2) includes a moving groove (201), which is opened on the upper surface of the base (1). Two movable blocks (202) are slidably arranged in the moving groove (201), and a top plate (203) is fixedly installed on the upper surface of the two movable blocks (202). A bidirectional threaded rod (204) is rotatably installed between the two sides of the inner wall of the movable groove (201), and the two movable blocks (202) are respectively threaded onto both sides of the bidirectional threaded rod (204); A motor (205) is fixedly installed on one side of the base (1), and one end of the bidirectional threaded rod (204) passes through the base (1) and is fixedly connected to the output shaft end of the motor (205).

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