CN219064423U

CN219064423U - Crankshaft size precision measuring device

Info

Publication number: CN219064423U
Application number: CN202223563870.9U
Authority: CN
Inventors: 蔡立军
Original assignee: Wuxi Pri Precision Technology Co ltd
Current assignee: Wuxi Pri Precision Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-23
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a crankshaft dimensional accuracy measuring device, which comprises a base, wherein a fixed support is fixed on one side of the top of the base, a movable support is fixed on the other side of the top of the base through a spacing adjusting assembly, L-shaped brackets are fixed on the sides of the fixed support and the movable support, an internal thread seat and a limiting hole are symmetrically arranged on the L-shaped brackets, an external threaded rod is screwed inside the internal thread seat, a measuring baffle is rotated at the top end of the external threaded rod, a limiting rod penetrating through the limiting hole is arranged on the back of the measuring baffle, and an infrared ranging sensor is fixed on the back of the measuring baffle on the movable support; the side of base is installed display panel, and display panel's internally mounted has the PLC controller, and infrared range sensor electric connection PLC controller's input, PLC controller's output electric connection display panel. The utility model is convenient and quick to realize the length measurement of the crankshaft, and has the advantages of high measurement speed, accurate measurement result and convenient use.

Description

Crankshaft size precision measuring device

Technical Field

The utility model relates to the technical field of crankshaft measurement, in particular to a crankshaft dimensional accuracy measuring device.

Background

The crankshaft is the most important component in an engine. The engine is used for bearing the force transmitted by the connecting rod, converting the force into torque, outputting the torque through the crankshaft and driving other accessories on the engine to work. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, periodically-changed gas inertia force and reciprocating inertia force, so that the crankshaft is subjected to bending torsion load. Therefore, the crankshaft is required to have enough strength and rigidity, and the journal surface needs to be wear-resistant, uniform in work and good in balance. When the crankshaft is processed, the size of the crankshaft needs to be accurately and effectively measured, and the quality of the crankshaft is ensured to be qualified.

The length measurement is carried out on the crankshaft by using a vernier caliper or a three-coordinate measuring instrument commonly used in a mechanical factory, but when the crankshaft with larger length is measured, the crankshaft cannot be completely grasped by a measuring claw of the vernier caliper, so that the correct length of the crankshaft cannot be obtained, although the three-coordinate measuring instrument can measure the length of a large-sized crankshaft, the three-coordinate measuring instrument is used for air source braking, the time required for measuring the crankshaft is long, and the machining efficiency is difficult to ensure. Therefore, it is necessary to design a crankshaft dimensional accuracy measuring device.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the crankshaft dimension precision measuring device which is convenient and quick to realize the length measurement of the crankshaft, and has the advantages of high measuring speed, accurate measuring result and convenient use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the crankshaft dimensional accuracy measuring device comprises a base, wherein a fixed support is fixed on one side of the top of the base, and a movable support is fixed on the other side of the top of the base through a spacing adjusting assembly;

the side edges of the fixed support and the movable support are respectively fixed with an L-shaped support, the L-shaped supports are symmetrically provided with an internal thread seat and a limiting hole, the interior of the internal thread seat is screwed with an external threaded rod, the top end of the external threaded rod is rotated to form a measuring baffle, the back of the measuring baffle is provided with a limiting rod penetrating through the limiting hole, and the back of the measuring baffle on the movable support is fixedly provided with an infrared ranging sensor;

the side of base is installed display panel, display panel's internally mounted has the PLC controller, infrared range sensor electric connection PLC controller's input, PLC controller's output electric connection display panel.

Preferably, the interval adjusting assembly comprises a chute, a screw rod, a sliding block and a rotary handle;

the sliding groove is formed in one side of the top of the base, a screw rod is connected to the inside of the sliding groove in a rotating mode, one end of the screw rod is connected with a rotating handle on the outer side of the base, a sliding block in meshed connection with the screw rod is arranged in the sliding groove in a sliding mode, and a movable support is mounted on the top of the sliding block.

Preferably, the L-shaped brackets at the side edges of the fixed support and the movable support are symmetrically arranged.

Preferably, the top ends of the fixed support and the movable support are flush with each other.

Preferably, the inner walls of the fixed support and the movable support are fixed with supporting blocks at equal intervals.

The beneficial effects of the utility model are as follows:

the length measurement of the crankshaft is conveniently and rapidly realized, and the measuring speed is high, the measuring result is accurate, and the use is convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall front plan structure of the present utility model;

FIG. 2 is a schematic top plan view of the spacing adjustment assembly of the present utility model;

FIG. 3 is a schematic view of the planar structure of the fixed support of the present utility model;

FIG. 4 is a schematic cross-sectional plan view of a display panel according to the present utility model;

reference numerals in the drawings: 1. a base; 2. a fixed support; 3. a spacing adjustment assembly; 4. a movable support; 5. an L-shaped bracket; 6. an internal thread seat; 7. an external threaded rod; 8. measuring a baffle; 9. a limiting hole; 10. a limit rod; 11. an infrared ranging sensor; 12. a display panel; 13. a chute; 14. a screw rod; 15. a slide block; 16. a rotary handle; 17. a support block; 18. and a PLC controller.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Example 1

The utility model provides the following technical scheme as shown in fig. 1, 3 and 4: the crankshaft dimensional accuracy measuring device comprises a base 1, wherein a fixed support 2 is fixed on one side of the top of the base 1, and a movable support 4 is fixed on the other side of the top of the base 1 through a spacing adjusting assembly 3;

the side edges of the fixed support 2 and the movable support 4 are respectively fixed with an L-shaped support 5,L, an internal thread seat 6 and a limiting hole 9 are symmetrically arranged on the support 5, an external threaded rod 7 is screwed in the internal thread seat 6, a measuring baffle 8 is rotated at the top end of the external threaded rod 7, a limiting rod 10 penetrating through the limiting hole 9 is arranged at the back of the measuring baffle 8, and an infrared ranging sensor 11 is fixed at the back of the measuring baffle 8 on the movable support 4;

the display panel 12 is installed to the side of base 1, the internally mounted of display panel 12 has PLC controller 18, infrared range finding sensor 11 electric connection PLC controller 18's input, the output electric connection of PLC controller 18 shows panel 12, place the axis body at bent axle both ends respectively on deciding support 2 and movable support 4, at first, rotate the external screw rod 7 of deciding support 2 one side, because spacing effect of spacing hole 9 and gag lever post 10, drive measuring baffle 8 and make it push up the side at the bent axle, then rotate the external screw rod 7 of movable support 4 one side, because spacing effect of spacing hole 9 and gag lever post 10, drive measuring baffle 8 and make it push up the opposite side at the bent axle, at this moment detect the distance between two adjacent measuring baffles 8 through the infrared range finding sensor 11 that sets up, and show on display panel 12 after handling the distance information that will detect, the distance between two measuring baffles 8 is the length of bent axle, the length measurement of bent axle conveniently realizes fast, and measuring speed is fast, the measuring result is accurate, convenient to use.

Preferably, the L-shaped brackets 5 on the side edges of the fixed support 2 and the movable support 4 are symmetrically arranged.

Preferably, the top ends of the fixed support 2 and the movable support 4 are flush with each other, and the support function is achieved on the shaft bodies at the two ends of the crankshaft.

Preferably, the inner walls of the fixed support 2 and the movable support 4 are fixed with supporting blocks 17 at equal intervals, so as to play a role in supporting the shaft bodies at two ends of the crankshaft.

Example two

Referring to fig. 1 and 2, as another preferred embodiment, the difference from the first embodiment is that the pitch adjustment assembly 3 includes a chute 13, a screw 14, a slider 15, and a knob 16;

the top one side at base 1 is seted up to spout 13, and the inside rotation of spout 13 is connected with lead screw 14, and the one end of lead screw 14 is connected with the spiral handle 16 in the base 1 outside, and the inside slip of spout 13 has the slider 15 of being connected with the lead screw 14 meshing, and movable support 4 is installed at the top of slider 15, when the bent axle of different sizes needs measurement, drives the lead screw 14 through rotating spiral handle 16 and rotates to drive the slider 15 at the inside motion of spout 13, conveniently adjust the distance between fixed support 2 and the movable support 4, in order to satisfy the measuring demand of different length bent axle, promote the convenience of use greatly.

Working principle:

the method comprises the steps that shaft bodies at two ends of a crankshaft are respectively placed on a fixed support 2 and a movable support 4, firstly, an external threaded rod 7 at one side of the fixed support 2 is rotated, a measuring baffle 8 is driven to horizontally move to prop against the side edge of the crankshaft due to the limiting effect of a limiting hole 9 and a limiting rod 10, then, the external threaded rod 7 at one side of the movable support 4 is rotated, the measuring baffle 8 is driven to horizontally move to prop against the other side of the crankshaft due to the limiting effect of the limiting hole 9 and the limiting rod 10, at the moment, the distance between two adjacent measuring baffles 8 is detected through an infrared ranging sensor 11, detected distance information is displayed on a display panel 12 after being processed through a PLC (programmable logic controller) 18, the distance between the two measuring baffles 8 is the length of the crankshaft, the length of the crankshaft is conveniently and rapidly measured, the measuring speed is fast, the measuring result is accurate, the use is convenient, and when crankshafts with different sizes are required to be measured, a screw rod 14 is driven to rotate through rotating a rotary handle 16, and a sliding block 15 is driven to move inside a sliding groove 13, the distance between the fixed support 2 and the movable support 4 is conveniently adjusted, the requirements of different lengths are met, and the use is greatly improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Crankshaft dimension precision measuring device, including base (1), its characterized in that: a fixed support (2) is fixed on one side of the top of the base (1), and a movable support (4) is fixed on the other side of the top of the base (1) through a spacing adjusting assembly (3);

the side edges of the fixed support (2) and the movable support (4) are respectively fixed with an L-shaped support (5), an inner threaded seat (6) and a limiting hole (9) are symmetrically arranged on the L-shaped support (5), an outer threaded rod (7) is screwed in the inner threaded seat (6), a measuring baffle (8) is rotated at the top end of the outer threaded rod (7), a limiting rod (10) penetrating through the limiting hole (9) is arranged at the back of the measuring baffle (8), and an infrared ranging sensor (11) is fixed at the back of the measuring baffle (8) on the movable support (4);

the side of base (1) is installed display panel (12), the internally mounted of display panel (12) has PLC controller (18), infrared range sensor (11) electric connection PLC controller (18) input, PLC controller (18) output electric connection display panel (12).

2. The crankshaft dimensional accuracy measuring device according to claim 1, wherein: the interval adjusting assembly (3) comprises a sliding groove (13), a screw rod (14), a sliding block (15) and a rotary handle (16);

the sliding chute (13) is formed in one side of the top of the base (1), a screw rod (14) is rotatably connected in the sliding chute (13), one end of the screw rod (14) is connected with a rotary handle (16) on the outer side of the base (1), a sliding block (15) meshed with the screw rod (14) is arranged in the sliding chute (13) in a sliding mode, and a movable support (4) is arranged at the top of the sliding block (15).

3. The crankshaft dimensional accuracy measuring device according to claim 1, wherein: the L-shaped brackets (5) at the side edges of the fixed support (2) and the movable support (4) are symmetrically arranged.

4. A crankshaft dimensional accuracy measuring device according to claim 3, wherein: the top ends of the fixed support (2) and the movable support (4) are mutually flush.

5. The crankshaft dimensional accuracy measuring device according to claim 1, wherein: the inner walls of the fixed support (2) and the movable support (4) are fixed with supporting blocks (17) at equal intervals.