Hardness detection device for automobile piston processing

Abstract

The utility model discloses a hardness detection device for automobile piston processing, and belongs to the field of automobile piston detection. A hardness detection device for automobile piston processing comprises a placing table and four supporting legs fixedly connected to the bottom of the placing table, the top of the placing table is fixedly connected with an L-shaped top frame, the bottom of the horizontal section of the top frame is provided with a detection assembly, the top of the placing table is provided with a through hole, a transfer device is placed below the placing table, and the transfer device is connected with the detection assembly. Bearing plates are hinged to the two opposite inner side walls of the through hole, four vertical rods are fixedly connected to the bottom of the containing table, the outer surfaces of every two corresponding vertical rods are jointly and slidably sleeved with a sliding plate, two connecting rods are hinged to one side of each sliding plate, and the ends, away from the corresponding sliding plates, of the connecting rods are hinged to the bottom faces of the corresponding bearing plates; according to the utility model, through the cooperation of the [-shaped frame and the sliding plate, when the hardness of the automobile piston is detected, the clamping arc plate tightly clamps the outer wall of the automobile piston, so that the fixing effect of the automobile piston is improved.

Description

Technical Field

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

[0002] Since the hardness of metals has a corresponding relationship with other mechanical properties, most metal materials can have their other mechanical properties approximately calculated by measuring their hardness. Therefore, hardness testing devices used in automotive piston machining are an important step in detecting piston quality.

[0003] A search revealed a Chinese patent with authorization number CN219179141U, which discloses a hardness testing device for automotive piston processing. The device includes a base, a rotating platform, a fixing mechanism, a lifting seat, and a measuring mechanism. The rotating platform is horizontally and rotatably mounted above the base. A fixing mechanism for fixing the workpiece is mounted on the upper surface of the rotating platform. A lifting seat is vertically mounted above the rotating platform. The lifting seat is equipped with a measuring mechanism for testing the hardness of the inner wall, outer wall, and port of the workpiece. The measuring mechanism includes a measuring seat, a first measuring needle, and a second measuring needle. The first measuring needle is horizontally mounted on both sides of the top of the two measuring seats, and a second measuring needle is vertically fixed at their bottom ends. This hardness testing device for automotive piston processing overcomes the problem in existing technologies where the measuring needle position is not adjustable, limiting testing to the end of the piston while other parts of the piston are not detected, leading to errors in the test results and reduced accuracy.

[0004] However, the patent uses a clamping spring to hold and fix the car piston. During hardness testing, the clamping spring may deform, resulting in poor fixing effect on the car piston. Furthermore, after the car piston is tested, the staff still need to manually move the car piston away from the testing device, which increases the labor intensity of the staff.

[0005] Therefore, this patent proposes a hardness testing device for automobile piston processing to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art where the clamping spring may deform during hardness testing, resulting in poor fixing effect on the car piston, and where the car piston still needs to be manually moved away from the testing device after testing, which increases the labor intensity of the workers. Therefore, this invention proposes a hardness testing device for car piston processing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A hardness testing device for automotive piston processing includes a placement platform and four support legs fixedly connected to the bottom of the placement platform. An L-shaped top frame is fixedly connected to the top of the placement platform. A testing component is provided at the bottom of the horizontal section of the top frame. A through hole is opened at the top of the placement platform. A transfer device is placed below the placement platform. A bearing plate is hinged to both inner sidewalls of the through hole. Four vertical rods are fixedly connected to the bottom of the placement platform. A sliding plate is slidably fitted on the outer surface of two corresponding vertical rods. Two connecting rods are hinged to one side of the sliding plate. The end of the connecting rod away from the corresponding sliding plate is hinged to the bottom surface of the corresponding bearing plate. A spring is fixedly connected between the top surface of the bearing plate and the bottom surface of the placement platform. A driving unit is provided below the placement platform.

[0009] As a preferred technical solution of this application, the driving unit includes four electric push rods fixedly connected to the bottom of the placement platform. A C-shaped frame is fixedly connected to the output ends of two corresponding electric push rods. The sliding plate is located between the inner top wall and inner bottom wall of the corresponding C-shaped frame. The C-shaped frame is slidably connected to the corresponding vertical rod. An avoidance opening is provided at the top of the C-shaped frame corresponding to the spring. The spring passes through the avoidance opening. A fixing part is provided above the C-shaped frame.

[0010] As a preferred technical solution of this application, the fixing part includes two side shells, the side shells are L-shaped, and the vertical section of the side shell is fixedly passed through the placement platform. A first piston and a second piston are slidably connected in the vertical section and the horizontal section of the side shell, respectively. A sliding column is fixedly connected to the top of the C-shaped frame. The sliding column is fixedly connected to the bottom of the first piston and slides through the bottom wall of the side shell. A crossbar is fixedly connected to the side of the second piston near the through hole. The crossbar slides through the side shell, and a clamping arc plate is fixedly connected to the end of the crossbar outside the side shell.

[0011] As a preferred technical solution of this application, when both clamping arc plates are in contact with the outer wall of the automobile piston, the inner bottom wall of the C-shaped frame is in contact with the bottom surface of the slide plate, and the bearing plate is in a horizontal state.

[0012] As a preferred technical solution of this application, the side shell located between the first piston and the second piston is filled with hydraulic oil.

[0013] Compared with the prior art, this utility model provides a hardness testing device for automobile piston processing, which has the following beneficial effects:

[0014] This hardness testing device for automotive piston processing utilizes a combination of a U-shaped frame and a sliding plate. During piston hardness testing, the clamping arc plate tightly holds the outer wall of the piston, improving its fixation. The U-shaped frame supports the sliding plate, preventing it from moving downwards. After piston testing, an electric push rod drives the U-shaped frame downwards, which in turn moves the sliding plate downwards. The support plate rotates, and the piston falls through the gap between the two support plates into the transfer device. This reduces the workload of operators and solves the problems of existing technologies that use clamping springs to hold and fix pistons, which may deform during hardness testing, resulting in poor piston fixation. Furthermore, after testing, operators still need to manually remove the piston from the testing device, increasing their workload. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lower half of the present invention;

[0017] Figure 3 This is a schematic diagram of the front section of the lower half of the present invention;

[0018] Figure 4 This is a side sectional view of the lower half of the present invention.

[0019] In the picture:

[0020] 1. Placement platform; 2. Top frame; 3. Detection assembly; 4. Through hole; 5. Transfer device; 6. Bearing plate; 7. Vertical rod; 8. Slide plate; 9. Connecting rod; 10. Spring; 11. Drive unit; 111. Electric push rod; 112. C-shaped frame; 113. Clearance opening; 114. Fixing unit; 115. Side shell; 116. First piston; 117. Second piston; 118. Sliding column; 119. Crossbar; 120. Clamping arc plate; 13. Hydraulic oil. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Reference Figure 1-4A hardness testing device for automotive piston processing includes a placement platform 1 and four support legs fixedly connected to the bottom of the placement platform 1. An L-shaped top frame 2 is fixedly connected to the top of the placement platform 1. A testing component 3 is provided at the bottom of the horizontal section of the top frame 2. A through hole 4 is opened at the top of the placement platform 1. A transfer device 5 is placed below the placement platform 1. A bearing plate 6 is hinged to both inner sidewalls of the through hole 4. Four vertical rods 7 are fixedly connected to the bottom of the placement platform 1. A sliding plate 8 is slidably fitted on the outer surface of two corresponding vertical rods 7. Two connecting rods 9 are hinged to one side of the sliding plate 8. The end of the connecting rod 9 away from the corresponding sliding plate 8 is hinged to the bottom surface of the corresponding bearing plate 6. A spring 10 is fixedly connected between the top surface of the bearing plate 6 and the bottom surface of the placement platform 1. A drive unit 11 is provided below the placement platform 1.

[0024] The detection component 3 includes a hydraulic rod fixedly connected to the bottom of the horizontal section of the top frame 2. A drive plate is fixedly connected to the output end of the hydraulic rod, and two detection pins are fixedly connected to the bottom of the drive plate. After the car piston is fixed, the hydraulic rod operates to drive the detection pins to move, and the detection pins press against the end face of the car piston, thereby detecting the hardness of the car piston. It should be noted that the detection pins are existing technology, and the specific principle of its hardness detection can be found in the prior art, which will not be elaborated here.

[0025] In this embodiment, the transfer device 5 is a trolley. The trolley is pushed under the placement platform 1 to directly receive the car piston falling from the through hole 4 and transfer it to another place, so that the staff no longer need to manually remove the car piston and place it in the trolley, thereby reducing the labor intensity.

[0026] Furthermore, the inner wall of the trolley housing is lined with an elastic material, such as rubber, to reduce the vibration of the car piston as it falls into the trolley and prevent damage to the car piston when it enters the trolley.

[0027] like Figure 1-3 As shown, in a preferred embodiment, based on the above method, the drive unit 11 further includes four electric push rods 111 fixedly connected to the bottom of the placement platform 1. The output ends of two electric push rods 111 are fixedly connected to a C-shaped frame 112. The slide plate 8 is located between the inner top wall and the inner bottom wall of the corresponding C-shaped frame 112. The C-shaped frame 112 is slidably connected to the corresponding vertical rod 7. An avoidance opening 113 is provided at the top of the C-shaped frame 112 corresponding to the spring 10. The spring 10 passes through the corresponding avoidance opening 113. A fixing part 114 is provided above the C-shaped frame 112.

[0028] Initially, the support plate 6 is horizontal, and there is a gap between the inner bottom wall of the U-shaped frame 112 and the slider. During the hardness test of the automobile piston, the automobile piston is placed on the two support plates 6, and the deformation of the spring 10 is negligible at this time. Then, the electric push rod 111 works to clamp and fix the automobile piston through the fixing part 114.

[0029] like Figure 3 As shown, in a preferred embodiment, based on the above method, the fixing part 114 further includes two side shells 115. The side shells 115 are L-shaped, and the vertical section of the side shell 115 is fixedly passed through the placement platform 1. The vertical section and the horizontal section of the side shell 115 are respectively slidably connected to a first piston 116 and a second piston 117. The top of the U-shaped frame 112 is fixedly connected to a sliding column 118. The sliding column 118 is fixedly connected to the bottom of the first piston 116, and the sliding column 118 slides through the inner bottom wall of the side shell 115. The side of the second piston 117 near the through hole 4 is fixedly connected to a crossbar 119. The crossbar 119 slides through the side shell 115, and the end of the crossbar 119 outside the side shell 115 is fixedly connected to a clamping arc plate 120.

[0030] Initially, the distance between the two clamping arc plates 120 is greater than the diameter of the car piston. When the U-shaped frame 112 moves upward, it drives the first piston 116 to move upward through the sliding column 118. The first piston 116 pushes the second piston 117 to move horizontally through the fluid. The second piston 117 drives the clamping arc plates 120 to move through the crossbar 119, thereby clamping the car piston.

[0031] like Figure 1-3 As shown, in a preferred embodiment, based on the above method, further, when both clamping arc plates 120 are in contact with the outer wall of the automobile piston, the inner bottom wall of the C-shaped frame 112 is in contact with the bottom surface of the slide plate 8, and the bearing plate 6 is in a horizontal state. Therefore, when the automobile piston is fixed, the slide plate 8 is limited by the C-shaped frame 112 and cannot move downward, so when the measuring needle presses against the end face of the automobile piston, the bearing plate 6 will not rotate.

[0032] like Figure 3 As shown, in a preferred embodiment, based on the above method, the side shell 115 is further filled with hydraulic oil 13 between the first piston 116 and the second piston 117. When the first piston 116 moves, it pushes the second piston 117 to move through the hydraulic oil 13. Due to the incompressibility of the hydraulic oil 13, after the clamping arc plate 120 clamps the car piston, since the electric push rod 111 no longer works, the first piston 116 no longer moves, and therefore the second piston 117 and the clamping arc plate 120 will also no longer move, thereby ensuring the clamping stability of the car piston.

[0033] Specifically, when the hardness testing device used for automobile piston processing is working: the automobile piston is placed on two support plates 6, and then the electric push rod 111 drives the U-shaped frame 112 to move upward. The U-shaped frame 112 drives the first piston 116 to move upward through the sliding column 118. The first piston 116 pushes the second piston 117 to move horizontally through the hydraulic oil 13. The second piston 117 drives the clamping arc plate 120 to move through the crossbar 119 until both clamping arc plates 120 are in contact with the outer wall of the automobile piston, clamping and fixing the automobile piston. At this time, the support plate 6 is in a horizontal state, and the inner bottom wall of the U-shaped frame 112 is in contact with the bottom surface of the slide plate 8.

[0034] Next, the detection component 3 operates to perform hardness testing on the automotive piston. Then, the electric push rod 111 reverses its operation, causing the C-shaped frame 112 to move downwards to its original position, and the two clamping arc plates 120 also move away from the automotive piston to their original positions. Then, the electric push rod 111 continues to operate, and the C-shaped frame 112 continues to move downwards. The inner top wall of the C-shaped frame 112 contacts the slide plate 8 and pushes the slide plate 8 downwards. The slide plate 8 drives the support plate 6 to rotate through the connecting rod 9, creating a gap between the two support plates 6. The automotive piston passes through the gap between the two support plates 6 and falls into the transfer device 5.

[0035] Finally, the electric push rod 111 moves in the opposite direction, causing the C-shaped frame 112 to move upward to its original position. The slide plate 8 also returns to its original position under the restoring force of the spring 10, and the bearing plate 6 returns to a horizontal state.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A hardness testing device for automotive piston machining, comprising a placement platform (1) and four support legs fixedly connected to the bottom of the placement platform (1), wherein an L-shaped top frame (2) is fixedly connected to the top of the placement platform (1), and a testing component (3) is provided at the bottom of the horizontal section of the top frame (2), characterized in that, The top of the placement platform (1) is provided with a through hole (4), and a transfer device (5) is placed below the placement platform (1). The through hole (4) is hinged to the two inner side walls with a bearing plate (6). The bottom of the placement platform (1) is fixedly connected with four vertical rods (7). A sliding plate (8) is slidably fitted on the outer surface of two corresponding vertical rods (7). Two connecting rods (9) are hinged to one side of the sliding plate (8). The end of the connecting rod (9) away from the corresponding sliding plate (8) is hinged to the bottom surface of the corresponding bearing plate (6). A spring (10) is fixedly connected between the top surface of the bearing plate (6) and the bottom surface of the placement platform (1). A drive unit (11) is provided below the placement platform (1).

2. The hardness testing device for automobile piston machining according to claim 1, characterized in that, The drive unit (11) includes four electric push rods (111) fixedly connected to the bottom of the placement platform (1). The output ends of two electric push rods (111) are fixedly connected to a U-shaped frame (112). The slide plate (8) is located between the inner top wall and the inner bottom wall of the corresponding U-shaped frame (112). The U-shaped frame (112) is slidably connected to the corresponding vertical rod (7). A clearance opening (113) is provided at the top of the U-shaped frame (112) corresponding to the spring (10). The spring (10) passes through the clearance opening (113). A fixing part (114) is provided above the U-shaped frame (112).

3. The hardness testing device for automobile piston machining according to claim 2, characterized in that, The fixing part (114) includes two side shells (115). The side shells (115) are L-shaped, and the vertical section of the side shells (115) is fixedly passed through the placement platform (1). The vertical section and the horizontal section of the side shells (115) are respectively slidably connected to a first piston (116) and a second piston (117). The top of the U-shaped frame (112) is fixedly connected to a sliding column (118). The sliding column (118) is fixedly connected to the bottom of the first piston (116), and the sliding column (118) slides through the bottom wall of the side shell (115). The side of the second piston (117) near the through hole (4) is fixedly connected to a crossbar (119). The crossbar (119) slides through the side shell (115), and the end of the crossbar (119) outside the side shell (115) is fixedly connected to a clamping arc plate (120).

4. The hardness testing device for automobile piston machining according to claim 3, characterized in that, When both clamping arc plates (120) are in contact with the outer wall of the automobile piston, the inner bottom wall of the swivel frame (112) is in contact with the bottom surface of the slide plate (8), and the bearing plate (6) is in a horizontal state.

5. The hardness testing device for automobile piston machining according to claim 4, characterized in that, The side shell (115) is filled with hydraulic oil (13) between the first piston (116) and the second piston (117).

Images