Crankshaft eccentric circle measuring equipment

Abstract

The utility model belongs to the technical field of crankshaft measurement, and particularly relates to crankshaft eccentric circle measuring equipment which comprises a table body, a clamping mechanism is arranged on the upper portion of the table body and comprises a linear guide rail connected with the table body in an assembled mode, and the linear guide rail is sequentially connected with a first sliding block, a second sliding block and a third sliding block in an assembled mode from bottom to top. An elastic reset assembly is assembled and connected between the second sliding block and the third sliding block, the first sliding block is rotationally connected with a first clamping head, the second sliding block is rotationally connected with a second clamping head located over the first clamping head, the first sliding block is fixedly connected with the linear guide rail, the third sliding block is in locking connection with the linear guide rail, and the first clamping head is assembled and connected with a rotating piece. The two sides of the first chuck and the second chuck are connected with measuring sensors in an assembled mode through a rack. The crankshaft measuring tool is ingenious in design, and the crankshaft can be conveniently taken and measured through the design of the elastic reset assembly.

Description

Technical Field

[0001] This utility model belongs to the field of crankshaft measurement technology, specifically relating to a crankshaft eccentricity circle measuring device. Background Technology

[0002] The crankshaft is an important component of an engine. It is made of carbon structural steel or ductile iron. The main journal is mounted on the cylinder block, the connecting rod journal is connected to the big end of the connecting rod, and the small end of the connecting rod is connected to the piston of the cylinder. It is a typical crank-slider mechanism. During the production process, the eccentric angle of the crankshaft needs to be measured to check whether the crankshaft is qualified.

[0003] In existing technologies, crankshaft eccentricity measurement is usually done manually. Operators use measuring tools to measure the crankshaft segments, which is inefficient and takes a long time. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a crankshaft eccentricity circle measuring device to solve the problems mentioned in the background art.

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

[0006] A crankshaft eccentricity circle measuring device includes a platform, a clamping mechanism on the upper part of the platform, the clamping mechanism including a linear guide rail assembled and connected to the platform, a first slider, a second slider and a third slider sequentially assembled and connected from bottom to top on the linear guide rail, an elastic reset component assembled and connected between the second slider and the third slider, a first chuck rotatably connected to the first slider, a second chuck rotatably connected to the second slider located directly above the first chuck, the first slider fixedly connected to the linear guide rail, the third slider locked to the linear guide rail, a rotating component assembled and connected to the first chuck, and measuring sensors assembled and connected to both sides of the first chuck and the second chuck via a frame.

[0007] Further specifying, the elastic reset assembly includes a sliding rod connected between the second slider and the third slider. The sliding rod is slidably connected to the third slider and fixedly connected to the second slider. A rocker arm is mounted and connected above the third slider and is mounted and connected to the upper end of the sliding rod. A spring is sleeved on the outside of the sliding rod. The rocker arm is used to control the upward movement of the sliding rod.

[0008] Further specifying, the sliding rod includes a first connecting rod and two second connecting rods, the second connecting rods being located in front of the second and third sliders, and a limit block being fixedly connected to the upper end of the first connecting rod.

[0009] Further defined, the rocker arm is composed of a contact section, a connecting section and a control section integrally connected, the contact section of the rocker arm is located below the limiting block, the connecting section is hinged to the third slider, and the end of the contact section is located on the lower side of the limiting block.

[0010] Furthermore, the control section is arranged perpendicularly to the connecting section, and when the control section is vertical, the end of the contact section is at its highest position.

[0011] Further specifying, the rotating component is a high-precision turntable, and the first chuck rotates synchronously with the high-precision turntable.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention facilitates the placement and removal of the crankshaft. The two clamps help to fix the crankshaft. After the rocker arm is released, the distance between the second and third sliders increases, and the distance between the second and first sliders decreases. Thus, the first and second clamps hold the crankshaft. After measurement, pressing down on the rocker arm will move the second slider upward, increasing the distance between the first and second clamps, allowing the crankshaft to be removed directly.

[0014] This utility model is ingeniously designed. A high-precision turntable directly drives the first chuck to rotate. The first and second chucks clamp the crankshaft. The first chuck drives the crankshaft to rotate, and the crankshaft drives the second chuck to rotate, thus realizing the rotation of the crankshaft during the measurement process.

[0015] This invention uses a measuring sensor to measure the angle of the crankshaft eccentric shaft to detect whether the crankshaft is qualified. The measurement error is small and no manual measurement is required. Attached Figure Description

[0016] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 This is a front view of a crankshaft eccentricity circle measuring device according to the present invention;

[0018] Figure 2 This is an isometric view of a crankshaft eccentricity circle measuring device according to the present invention;

[0019] Figure 3 This is a side view of a crankshaft eccentricity circle measuring device according to the present invention;

[0020] Figure 4 This is an enlarged view of the connector of the elastic reset component of this utility model;

[0021] Figure 5 This is a schematic diagram showing the connection between the second and third sliders of this utility model;

[0022] Figure 6 This is a schematic diagram of the rocker arm structure of this utility model;

[0023] The symbols for the main components are explained below:

[0024] Platform 1, linear guide rail 11;

[0025] Clamping mechanism 2, first slider 21, second slider 22, third slider 23, first chuck 24, second chuck 25, rotating component 26;

[0026] Elastic reset assembly 3, sliding rod 31, first connecting rod 311, second connecting rod 312, limiting block 313, rocker arm 32, contact section 321, connecting section 322, control section 323, spring 33.

[0027] Measurement sensor 4. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-6 As shown, a crankshaft eccentricity circle measuring device includes a platform 1. A clamping mechanism 2 is provided on the upper part of the platform 1. The clamping mechanism 2 includes a linear guide rail 11 that is assembled and connected to the platform 1. A first slider 21, a second slider 22, and a third slider 23 are sequentially assembled and connected from bottom to top on the linear guide rail 11. An elastic reset component 3 is assembled and connected between the second slider 22 and the third slider 23. A first chuck 24 is rotatably connected to the first slider 21. A second chuck 25 located directly above the first chuck 24 is rotatably connected to the second slider 22. The first slider 21 is fixedly connected to the linear guide rail 11. The third slider 23 is locked to the linear guide rail 11. A rotating component 26 is assembled and connected to the first chuck 24. Measuring sensors 4 are assembled and connected to both sides of the first chuck 24 and the second chuck 25 through a frame.

[0030] In this embodiment, the platform 1 is used to install various components, the clamping mechanism 2 is used to clamp the crankshaft, and the first slider 21, the second slider 22, and the third slider 23 are assembled and connected to the linear guide rail 1 and are located on the same straight line. When the third slider 23 is locked, the distance between the third slider 23 and the first slider 21 is fixed. By controlling the elastic reset component 3, when the elastic reset component 3 is compressed, the distance between the second slider 22 and the first slider 21 increases, thereby allowing the crankshaft to be placed between the first chuck 24 and the second chuck 25. When the compression of the elastic reset component 3 is released, the elastic reset component 23... Position component 3 is reset, the first chuck 24 and the second chuck 25 clamp the crankshaft. Both the first chuck 24 and the second chuck 25 are rotatably connected to the slider 21. When the rotating component 26 rotates, it drives the first chuck 24 to rotate, thereby driving the crankshaft to rotate. The measuring sensor 4 performs all-round measurement of the crankshaft to obtain the measurement result. The third slider 23 is locked to the linear guide rail 11 by screws. Alternatively, the position of the third slider can be moved after the screws are loosened and then fixed to the linear guide rail, so that the distance between the third slider 23 and the first slider 21 changes, thereby allowing the height of the third slider 23 to be adjusted according to the length of the crankshaft.

[0031] Reference Figure 1 and Figure 4 The elastic reset assembly 3 includes a sliding rod 31 connected between the second slider 22 and the third slider 23. The sliding rod 31 is slidably connected to the third slider 23 and fixedly connected to the second slider 22. A rocker arm 32, which is connected to the upper end of the sliding rod 31, is mounted on the upper part of the third slider 23. A spring 33 is sleeved on the outside of the sliding rod 31. The rocker arm 32 is used to control the upward movement of the sliding rod 31. In this embodiment, the second slider 22 is connected through the sliding rod 31, and the spring 33 is located between the second slider 22 and the third slider 23. When the rocker arm 31 is pressed down, the rocker arm 32 controls the upper end of the sliding rod 31 to move upward, thereby the sliding rod 31 drives the second slider 22 to move upward. The second slider 22 drives the second chuck 25 to move upward, increasing the distance between the second slider 22 and the third slider 23, thus facilitating the placement of the crankshaft between the second chuck 25 and the first chuck 24. After the rocker arm 32 is released, the second chuck 24 clamps the crankshaft under the force of the spring 33.

[0032] Reference Figure 4 The sliding rod 31 includes a first connecting rod 311 and two second connecting rods 312. The second connecting rods 312 are located in front of the second slider 22 and the third slider 23. The upper end of the first connecting rod 311 is fixedly connected to a limiting block 313. In this embodiment, the sliding rod 31 is arranged in front of and behind the second slider 22 to maintain the force balance of the second slider 22. The rocker arm 31 drives the limiting block 313 and the first connecting rod 311 to move upward simultaneously.

[0033] Reference Figure 6 The rocker arm 32 is integrally composed of a contact section 321, a connecting section 322, and a control section 323. The contact section 321 of the rocker arm 32 is located below the limiting block 313, and the connecting section 322 is hinged to the third slider 23. The end of the contact section 321 is located below the limiting block 313. In this embodiment, the contact section 321 of the rocker arm 32 is located below the limiting block 313 and is used to drive the contact section 321 to move upward. The connecting section is used to hinge to the third slider 23, and the rocker arm 32 rotates around the hinge point. The control section 323 is located at the front of the equipment and is controlled by the operator. When the control section 323 moves downward, the contact section 321 moves upward.

[0034] Reference Figure 4 and Figure 6 The control section 323 and the connecting section 322 are arranged perpendicularly. When the control section 323 is vertical, the end of the contact section 321 is at its highest position. In this embodiment, when the control end 323 of the rocker arm 32 is pressed down to its lowest position, the contact section 321 is at its highest point, thereby causing the limiting block 313 to be at its highest point, and causing the second slider 22 to move upward.

[0035] Reference Figure 2 The rotating component 26 is a high-precision turntable, and the first chuck 24 rotates synchronously with the high-precision turntable. In this embodiment, the high-precision turntable is used to drive the first chuck 24 to rotate synchronously, thereby driving the crankshaft to rotate.

[0036] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A crankshaft eccentricity circle measuring device, comprising a platform (1), characterized in that: The upper part of the platform (1) is provided with a clamping mechanism (2). The clamping mechanism (2) includes a linear guide rail (11) that is assembled and connected to the platform (1). The linear guide rail (11) is sequentially assembled and connected with a first slider (21), a second slider (22), and a third slider (23) from bottom to top. An elastic reset component (3) is assembled and connected between the second slider (22) and the third slider (23). The first slider (21) is rotatably connected to a first chuck (24). The second slider (22) is rotatably connected to a second chuck (25) located directly above the first chuck (24). The first slider (21) is fixedly connected to the linear guide rail (11). The third slider (23) is locked to the linear guide rail (11). The first chuck (24) is assembled and connected to a rotating component (26). Measurement sensors (4) are assembled and connected to both sides of the first chuck (24) and the second chuck (25) through a frame.

2. The crankshaft eccentricity circle measuring device according to claim 1, characterized in that: The elastic reset assembly (3) includes a slide rod (31) connected between the second slider (22) and the third slider (23). The slide rod (31) is slidably connected to the third slider (23) and fixedly connected to the second slider (22). A rocker arm (32) is mounted and connected above the third slider (23) and is mounted and connected to the upper end of the slide rod (31). A spring (33) is sleeved on the outside of the slide rod (31). The rocker arm (32) is used to control the slide rod (31) to move upward.

3. The crankshaft eccentricity circle measuring device according to claim 2, characterized in that: The slide bar (31) includes a first connecting rod (311) and two second connecting rods (312). The second connecting rods (312) are located in front of the second slider (22) and the third slider (23). The upper end of the first connecting rod (311) is fixedly connected to a limit block (313).

4. The crankshaft eccentricity circle measuring device according to claim 2, characterized in that: The rocker arm (32) is integrally connected by a contact section (321), a connecting section (322) and a control section (323). The contact section (321) of the rocker arm (32) is located below the limiting block (313). The connecting section (322) is hinged to the third slider (23). The end of the contact section (321) is located on the lower side of the limiting block (313).

5. The crankshaft eccentricity circle measuring device according to claim 4, characterized in that: The control section (323) is arranged perpendicularly to the connecting section (322), and when the control section (323) is vertical, the end of the contact section (321) is at its highest position.

6. The crankshaft eccentricity circle measuring device according to claim 1, characterized in that: The rotating component (26) is a high-precision turntable, and the first chuck (24) rotates synchronously with the high-precision turntable.

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