Shaft workpiece jumping detection and correction device

Abstract

The utility model discloses a shaft workpiece bounce detection and correction device which comprises a base, a frame body arranged at the top of the base, symmetrical electromagnetic sliding rails arranged inside the frame body, electromagnetic sliding blocks arranged outside the electromagnetic sliding rails in a sliding mode, a moving plate arranged at the bottom of the electromagnetic sliding blocks, and an electric push rod arranged at the bottom of the moving plate. The installation frame is driven by the telescopic end of the electric push rod to move downwards, the electric push rod can stop working until the detection rod at the bottom of the installation frame abuts against the surface of the shaft workpiece, the detection rod abuts against the surface of the shaft workpiece, when the surface of the shaft workpiece is bent, the bent and protruding positions can extrude the detection rod, and the detection rod cannot be damaged. The detection rod can drive the movable plate and the paintbrush to move upwards after being extruded, the paintbrush can leave a mark on the surface of the drawing board when moving upwards, and a worker can quickly know which position of the shaft workpiece is bent by watching the mark on the drawing board.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices for machining shaft workpieces, and specifically relates to a runout detection and correction device for shaft workpieces. Background Technique

[0002] A shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. In the mechanical field, shafts are the most commonly used transmission devices, generally in the shape of a metal round rod. To ensure good transmission performance and stable motion ability, shaft workpieces should be strictly ensured to be cylindrical in shape, avoiding phenomena such as eccentricity and uneven diameter. Therefore, during the machining process of shaft workpieces, the detection of their outer diameter is particularly important.

[0003] The Chinese utility model patent document with the publication number CN206160873U discloses a full runout detection device for shaft workpieces. Its structure includes a workbench, and the workbench is provided with a horizontally placed tabletop; a support block is placed flat on the tabletop of the workbench, and a first fixture for clamping the support block is fixed on the tabletop of the workbench. The support block is clamped and fixed on the tabletop of the workbench by the first fixture; a V-shaped groove for placing the metal body flat is opened on the top surface of the support block, and the V-shaped groove is a through groove; the metal body is placed flat on the V-shaped groove, and the axis of the metal body is parallel to the extension direction of the V-shaped groove; the V-shaped groove includes two obliquely arranged inner side walls, the outer peripheral surface of the metal body abuts against the two inner side walls, the metal body is supported by the two inner side walls, and the metal end is located outside the V-shaped groove. The surfaces of the two inner side walls are coated with a smooth and wear-resistant coating; an electromagnet for adsorbing shaft workpieces is arranged inside the support block. The above-mentioned full runout detection device for shaft workpieces can perform full runout detection on the metal ends of shaft workpieces.

[0004] Although the above-mentioned prior art can perform full runout detection on the ends of shaft workpieces, the bending position of the shaft workpiece may be at other positions, and the above device cannot detect the runout amplitude of multiple positions on the shaft workpiece, resulting in a small applicability of the detection and inconvenience in use. Content of the Utility Model

[0005] In view of the above problems, a runout detection and correction device for shaft workpieces is provided. The telescopic end of the electric push rod is used to drive the mounting frame to move downward until the detection rod at the bottom of the mounting frame abuts against the surface of the shaft workpiece, and then the electric push rod stops working. The detection rod abuts against the surface of the shaft workpiece. When the surface of the shaft workpiece is bent, these bent and protruding positions will squeeze the detection rod. After being squeezed, the detection rod will drive the movable plate and the paintbrush to move upward, and the paintbrush will leave marks on the surface of the drawing board when moving upward. The staff can quickly know which position of the shaft workpiece is bent by observing the marks on the drawing board.

[0006] To solve the problems of the prior art, the utility model provides a runout detection and correction device for shaft workpieces, including a base. A frame body is arranged on the top of the base. Symmetrical electromagnetic slide rails are arranged inside the frame body. An electromagnetic slider is slidably arranged outside the electromagnetic slide rail. A moving plate is arranged at the bottom of the electromagnetic slider. An electric push rod is arranged at the bottom of the moving plate. An installation frame is arranged at the telescopic end of the electric push rod. A connecting plate is arranged on the outer wall of the installation frame. Symmetrical clamping frames are arranged on the top of the connecting plate. A drawing board is movably arranged inside the clamping frame. A through hole for installing a detection rod is opened inside the installation frame. A movable plate is arranged at the top of the detection rod. A paintbrush that abuts against the drawing board is arranged at the top of the movable plate. A spring is sleeved outside the detection rod. One end of the spring is connected to the bottom of the movable plate, and the other end of the spring is connected to the inside of the installation frame.

[0007] Preferably, two L-shaped mounting blocks are arranged on the top of the base. One of the L-shaped mounting blocks is fixedly arranged on the top of the base, and the other L-shaped mounting block is movably arranged on the top of the base.

[0008] Preferably, motors are arranged on the side walls of the two L-shaped mounting blocks. The output shaft of the motor penetrates through the L-shaped mounting block and is provided with an electric chuck.

[0009] Preferably, support blocks and support plates are arranged inside the two L-shaped mounting blocks. An arc-shaped groove for placing shaft workpieces is opened at the top of the support block. Auxiliary wheels for assisting the rotation of shaft workpieces are symmetrically arranged on the top of the support plate.

[0010] Preferably, a hydraulic rod is further arranged at the bottom of the moving plate. A correction punch for correcting shaft workpieces is arranged at the movable end of the hydraulic rod.

[0011] Preferably, an installation groove for installing an adjustment screw rod is opened on the top of the base. One end of the adjustment screw rod extends to the outside of the base. A threaded block is threadedly connected to the outside of the adjustment screw rod. The threaded block is connected to the bottom of one of the L-shaped mounting blocks.

[0012] The beneficial effects of the utility model compared with the prior art are:

[0013] Drive the installation frame to move downward through the telescopic end of the electric push rod until the detection rod at the bottom of the installation frame abuts against the surface of the shaft workpiece, and then stop the electric push rod. The detection rod abuts against the surface of the shaft workpiece. When the surface of the shaft workpiece is bent, these bent and protruding positions will squeeze the detection rod. After being squeezed, the detection rod will drive the movable plate and the paintbrush to move upward, and the paintbrush will leave marks on the surface of the drawing board when moving upward. The staff can quickly know which position of the shaft workpiece is bent by observing the marks on the drawing board. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a runout detection and correction device for shaft workpieces.

[0015] Figure 2 It is a schematic diagram of the parts of a thread block in a runout detection and correction device for shaft workpieces.

[0016] Figure 3 It is a schematic diagram of some parts in a runout detection and correction device for shaft workpieces.

[0017] Figure 4 It is a schematic diagram of the structure of an electromagnetic slide rail and an electromagnetic slider in a runout detection and correction device for shaft workpieces.

[0018] Figure 5 It is a schematic diagram of the structure of some components in a runout detection and correction device for shaft workpieces.

[0019] Figure 6 It is a schematic diagram of the parts of a spring in a runout detection and correction device for shaft workpieces.

[0020] The reference numerals in the figure are: 1, base; 2, frame; 3, hydraulic rod; 4, electric push rod; 5, L-shaped mounting block; 6, adjusting screw; 7, thread block; 8, motor; 9, electric chuck; 10, support block; 11, support plate; 12, auxiliary wheel; 13, electromagnetic slide rail; 14, electromagnetic slider; 15, moving plate; 16, correction punch; 17, mounting frame; 18, drawing board; 19, clamping frame; 20, paintbrush; 21, connecting plate; 22, movable plate; 23, detection rod; 24, spring. Detailed Embodiment

[0021] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be described in further detail below with reference to the drawings and specific embodiments.

[0022] As Figures 1 to 6 shown, the present invention provides:

[0023] An axial workpiece runout detection and correction device includes a base 1. A frame 2 is arranged on the top of the base 1. Symmetrical electromagnetic slide rails 13 are arranged inside the frame 2. An electromagnetic slider 14 is slidably arranged outside the electromagnetic slide rails 13. A moving plate 15 is arranged at the bottom of the electromagnetic slider 14. An electric push rod 4 is arranged at the bottom of the moving plate 15. An installation frame 17 is arranged at the telescopic end of the electric push rod 4. A connecting plate 21 is arranged on the outer wall of the installation frame 17. Symmetrical clamping frames 19 are arranged at the top of the connecting plate 21. A drawing board 18 is movably arranged inside the clamping frames 19. A through hole for installing a detection rod 23 is opened inside the installation frame 17. A movable plate 22 is arranged at the top of the detection rod 23. A paintbrush 20 that abuts against the drawing board 18 is arranged at the top of the movable plate 22. A spring 24 is sleeved outside the detection rod 23. One end of the spring 24 is connected to the bottom of the movable plate 22, and the other end of the spring 24 is connected to the inside of the installation frame 17.

[0024] Drive the installation frame 17 to move downward through the telescopic end of the electric push rod 4 until the detection rod 23 at the bottom of the installation frame 17 abuts against the surface of the axial workpiece, then stop the electric push rod 4 from working. The detection rod 23 abuts against the surface of the axial workpiece. When the surface of the axial workpiece is bent, the bent and protruding positions will squeeze the detection rod 23. After being squeezed, the detection rod 23 will drive the movable plate 22 and the paintbrush 20 to move upward. When the paintbrush 20 moves upward, it will leave a mark on the surface of the drawing board 18. The staff can quickly know which position of the axial workpiece is bent by observing the mark on the drawing board 18.

[0025] As Figure 2 shown, two L-shaped mounting blocks 5 are arranged on the top of the base 1. One of the L-shaped mounting blocks 5 is fixedly arranged on the top of the base 1, and the other L-shaped mounting block 5 is movably arranged on the top of the base 1.

[0026] Using a movable L-shaped mounting block 5 can adapt to more axial workpieces of different lengths.

[0027] As Figure 3 shown, motors 8 are arranged on the side walls of the two L-shaped mounting blocks 5. The output shafts of the motors 8 penetrate through the L-shaped mounting blocks 5 and electric chucks 9 are arranged.

[0028] Clamp both ends of the axial workpiece with the two electric chucks 9, and then start the two motors 8 to drive the axial workpiece to rotate, which is convenient for runout detection.

[0029] As Figure 3 shown, support blocks 10 and support plates 11 are arranged inside the two L-shaped mounting blocks 5. An arc-shaped groove for placing the axial workpiece is opened at the top of the support block 10. Auxiliary wheels 12 for assisting the rotation of the axial workpiece are symmetrically arranged at the top of the support plate 11.

[0030] The arc-shaped groove at the top of the support block 10 is used to prevent the shaft workpiece from damaging the device during straightening, and the auxiliary wheel 12 makes the shaft workpiece rotate more smoothly.

[0031] As Figure 4 shown, a hydraulic rod 3 is further provided at the bottom of the moving plate 15, and a straightening punch 16 for straightening the shaft workpiece is provided at the movable end of the hydraulic rod 3.

[0032] The cooperation of the hydraulic rod 3 and the straightening punch 16 can straighten the bent position of the shaft workpiece.

[0033] As Figure 2 shown, an installation groove for installing the adjusting screw 6 is opened at the top of the base 1. One end of the adjusting screw 6 extends to the outside of the base 1, and a threaded block 7 is threadedly connected to the outside of the adjusting screw 6. The threaded block 7 is connected to the bottom of one of the L-shaped mounting blocks 5.

[0034] The adjusting screw 6 can drive one of the L-shaped mounting blocks 5 to move, facilitating the adjustment of the distance between the two L-shaped mounting blocks 5.

[0035] Working principle: First, rotate the adjusting screw 6 according to the length of the shaft workpiece. The adjusting screw 6 drives the threaded block 7 and an L-shaped mounting block 5 to move until the distance between the two L-shaped mounting blocks 5 matches the length of the shaft workpiece to be tested. Then, use the two electric chucks 9 to clamp the two ends of the shaft workpiece. At this time, the electromagnetic slider 14 can drive the moving plate 15 to move, and the electric push rod 4 and the hydraulic rod 3 are moved to directly above the shaft workpiece through the moving plate 15. When it is necessary to perform runout detection on the shaft workpiece, start the electric push rod 4, and use the telescopic end of the electric push rod 4 to drive the mounting frame 17 to move downward until the detection rod 23 at the bottom of the mounting frame 17 abuts against the surface of the shaft workpiece, then stop the electric push rod 4 from working. At this time, the two motors 8 are started to drive the shaft workpiece to rotate. At this time, the electromagnetic slider 14 moves in the reverse direction and will also drive the detection rod 23 to move in the reverse direction. Since the detection rod 23 abuts against the surface of the shaft workpiece, the detection rod 23 will move along the surface of the shaft workpiece. When there is a bend on the surface of the shaft workpiece, the bent and protruding positions will squeeze the detection rod 23. After being squeezed, the detection rod 23 will drive the movable plate 22 and the paintbrush 20 to move upward, and the paintbrush 20 will leave a mark on the surface of the drawing board 18 when moving upward. The staff can quickly know which position of the shaft workpiece has a bend by observing the mark on the drawing board 18. Then, the cooperation of the hydraulic rod 3 and the straightening punch 16 can straighten the bent position of the shaft workpiece.

[0036] The above embodiments only illustrate one or several implementation manners of the runout detection and correction device for shaft workpieces of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the appended claims.

Claims

1. A runout detection and correction device for shaft workpieces, characterized in that, It includes a base (1). At the top of the base (1), there is a frame body (2). Inside the frame body (2), there are symmetric electromagnetic slide rails (13). An electromagnetic slider (14) is slidably arranged outside the electromagnetic slide rails (13). At the bottom of the electromagnetic slider (14), there is a moving plate (15). At the bottom of the moving plate (15), there is an electric push rod (4). The telescopic end of the electric push rod (4) is provided with a mounting frame (17). On the outer wall of the mounting frame (17), there is a connecting plate (21). At the top of the connecting plate (21), there are symmetric clamping frames (19). Inside the clamping frames (19), a drawing board (18) is movably arranged. Inside the mounting frame (17), there is a through hole for installing a detection rod (23). At the top of the detection rod (23), there is a movable plate (22). At the top of the movable plate (22), there is a paintbrush (20) that abuts against the drawing board (18). A spring (24) is sleeved outside the detection rod (23). One end of the spring (24) is connected to the bottom of the movable plate (22), and the other end of the spring (24) is connected to the inside of the mounting frame (17).

2. The runout detection and correction device for a shaft workpiece according to claim 1, wherein, At the top of the base (1), there are two L-shaped mounting blocks (5). One of the L-shaped mounting blocks (5) is fixedly arranged at the top of the base (1), and the other L-shaped mounting block (5) is movably arranged at the top of the base (1).

3. The runout detection and correction device for a shaft workpiece according to claim 2, characterized in that, On the side walls of both L-shaped mounting blocks (5), there are motors (8). The output shaft of the motor (8) penetrates through the L-shaped mounting block (5) and is provided with an electric chuck (9).

4. The shaft workpiece runout detection and correction device according to claim 2, wherein Inside both L-shaped mounting blocks (5), there are a support block (10) and a support plate (11). At the top of the support block (10), there is an arc-shaped groove for placing a shaft workpiece. At the top of the support plate (11), there are symmetric auxiliary wheels (12) for assisting the rotation of the shaft workpiece.

5. The runout detection and correction device for a shaft workpiece according to claim 1, characterized in that, At the bottom of the moving plate (15), there is also a hydraulic rod (3). The movable end of the hydraulic rod (3) is provided with a correction punch (16) for correcting the shaft workpiece.

6. The runout detection and correction device for a shaft workpiece according to claim 2, wherein, At the top of the base (1), there is a mounting groove for installing an adjusting screw rod (6). One end of the adjusting screw rod (6) extends to the outside of the base (1). The adjusting screw rod (6) is externally threaded with a threaded block (7). The threaded block (7) is connected to the bottom of one of the L-shaped mounting blocks (5).

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