Coaxiality testing fixture

Abstract

The utility model relates to a coaxiality testing fixture. The coaxiality testing fixture comprises a base plate, a fixed V-shaped inclined iron, a positioning bolt hole of a universal gauge rod, a movable V-shaped inclined iron, a fixed block, a handle, a screw rod, an optical axis slide rail, a square slide rail and a lever dial indicator. A fixed V-shaped inclined iron is arranged at one end of the bottom plate; fixing blocks are arranged on the side surface of the other end of the bottom plate; a screw rod is arranged on the fixed block in a penetrating manner; an optical axis sliding rail and a square sliding rail are arranged on the two sides of the bottom plate respectively; an optical axis sliding rail sliding block is arranged on the optical axis sliding rail in a sliding manner; a square sliding rail sliding block is arranged on the square sliding rail in a sliding manner; a movable V-shaped inclined iron is arranged on the square sliding rail sliding block; the bottom of the other end of the movable V-shaped inclined iron is connected with a sliding block of the optical axis sliding rail; the end part of the screw rod is arranged at the bottom of the movable V-shaped inclined iron in a penetrating manner; the bottom of the fixed V-shaped inclined iron is provided with a lever dial indicator. According to the utility model, the coaxiality detection time of the workpiece is reduced, and the detection capability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical inspection tools, in particular to a coaxiality inspection tool. Background Art

[0002] During machining, shaft or disc parts are often encountered. During machining, the coaxiality requirements of shaft or disc parts are relatively strict. If the coaxiality tolerance is relatively large, the parts will be scrapped. The coaxiality of existing shaft or disc parts is mainly detected by three-coordinate measurement. The three-coordinate measurement takes a long time and wastes a lot of three-coordinate resources. The special inspection fixture has a single structure and can only detect one product, and cannot achieve compatible detection of multiple products. Utility Model Content

[0003] The utility model mainly solves the technical problems of the prior art such as the long coaxiality detection time, and proposes a coaxiality inspection tool, which reduces the coaxiality detection time of the workpiece, improves the detection capability, and is compatible with various products with different diameters. By using this inspection tool, the coaxiality and parallelism of the product can be quickly detected, and the value and direction of the coaxiality and parallelism can be read out, which is convenient for workpiece adjustment. At the same time, the size of the inspection tool can be adjusted according to the size of the product diameter, and the inspection tool has strong compatibility. This inspection tool can reduce the detection time and improve the work efficiency.

[0004] The utility model provides a coaxiality inspection tool, comprising: a bottom plate, a fixed V-shaped inclined iron, a positioning bolt hole of a universal gauge rod, a movable V-shaped inclined iron, a fixed block, a handle, a screw rod, an optical axis slide rail, a square slide rail and a lever micrometer;

[0005] A fixed V-shaped inclined iron is arranged at one end of the bottom plate; a fixed block is arranged on the side of the other end of the bottom plate; a screw is passed through the fixed block;

[0006] An optical axis slide rail and a square slide rail are respectively arranged on both sides of the bottom plate; an optical axis slide rail slider is slidably arranged on the optical axis slide rail; a square slide rail slider is slidably arranged on the square slide rail; a movable V-shaped inclined iron is arranged on the square slide rail slider; the bottom of the other end of the movable V-shaped inclined iron is connected to the optical axis slide rail slider; the end of the screw rod is inserted into the bottom of the movable V-shaped inclined iron;

[0007] A lever dial indicator is arranged at the bottom of the fixed V-shaped inclined iron.

[0008] Furthermore, V-shaped irons are respectively arranged inside the movable V-shaped inclined iron and the fixed V-shaped inclined iron.

[0009] Furthermore, a locking nut is provided on the side of the optical axis slide rail slider.

[0010] Furthermore, a handle is provided at one end of the screw rod away from the movable V-shaped inclined iron.

[0011] Further, the screw rod is in threaded fit with the movable V-shaped wedge.

[0012] Further, the lever dial indicator is arranged in the bolt hole at the bottom of the fixed V-shaped wedge through a universal dial rod.

[0013] Further, the probe of the lever dial indicator can contact the position to be measured of the workpiece.

[0014] Further, a snap ring is sleeved at the position where the screw rod contacts the movable V-shaped wedge.

[0015] Further, the fixed V-shaped wedge and the movable V-shaped wedge are on the same horizontal plane.

[0016] Further, the angles between the fixed V-shaped wedge and the movable V-shaped wedge and the bottom plate range from 40° to 55°.

[0017] Compared with the prior art, the coaxiality gauge provided by the present utility model has the following advantages:

[0018] 1. The coaxiality gauge of the present utility model has a simple structure and is easy to operate. It can quickly detect whether the coaxiality and parallelism of the product are qualified, and can read out the values and directions of the coaxiality and parallelism, which is convenient for workpiece adjustment, reduces the detection time of the coordinate measuring machine, and improves the operation efficiency.

[0019] 2. The movable V-shaped wedge of the coaxiality gauge of the present utility model can move back and forth on the optical axis slide rail and the square slide rail, so as to change the diameter between the movable V-shaped wedge and the fixed V-shaped wedge, and thus can be applicable to the detection of products with different diameters, and has strong compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the top view of the coaxiality gauge of the present utility model;

[0021] Figure 2 is the perspective view of the coaxiality gauge of the present utility model;

[0022] Figure 3 is the simulation state diagram of the coaxiality gauge of the present utility model;

[0023] Figure 4 is the side view of the coaxiality gauge of the present utility model;

[0024] Figure 5 is the schematic diagram of the coaxiality gauge of the present utility model for detecting the parallelism of the product;

[0025] Figure 6 is the schematic diagram of the coaxiality gauge of the present utility model for detecting the coaxiality of the product;

[0026] Figure 7 It is a schematic diagram of the simulated workpiece product of the present utility model;

[0027] Reference numerals: 1, base plate; 2, fixed V-shaped inclined iron; 3, positioning bolt hole; 4, movable V-shaped inclined iron; 5, fixed block; 6, handle; 7, screw rod; 8, snap ring; 9, optical axis slide rail; 10, optical axis slide rail slider; 11, lock nut; 12, square slide rail slider; 13, square slide rail; 14, V-shaped iron; 15, outer circle of the simulated workpiece; 16, simulated workpiece; 17, universal dial rod; 18, lever dial indicator; 19, probe; 21, end face of the workpiece to be detected; 22, inner hole of the workpiece to be detected; 23, positioning outer circle of the workpiece; 24, positioning end face of the workpiece. Specific implementation manners

[0028] To make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only the parts related to the present utility model are shown in the drawings rather than all the contents.

[0029] As Figure 1-6 shown, a coaxiality detector provided by an embodiment of the present utility model includes: a base plate 1, a fixed V-shaped inclined iron 2, a positioning bolt hole 3 of the universal dial rod, a movable V-shaped inclined iron 4, a fixed block 5, a handle 6, a screw rod 7, an optical axis slide rail 9, a square slide rail 13 and a lever dial indicator 18;

[0030] A fixed V-shaped inclined iron 2 is arranged at one end of the base plate 1; a fixed block 5 is arranged on the side surface of the other end of the base plate 1; a screw rod 7 is passed through the fixed block 5;

[0031] Optical axis rails 9 and square rails 13 are respectively arranged on both sides of the bottom plate 1; an optical axis rail slider 10 is slidably arranged on the optical axis rail 9; a locking nut 11 is arranged on the side of the optical axis rail slider 10, and when the movable V-shaped inclined iron 4 moves into position, the V-shaped iron 14 is fully in contact with the outer circle of the workpiece, and the locking nut is tightened to lock the optical axis rail slider 10, thereby locking and fixing the movable V-shaped inclined iron 4, so as to make the detection more stable. A square rail slider 12 is slidably arranged on the square rail 13; a movable V-shaped inclined iron 4 is arranged on the square rail slider 12; the bottom of the other end of the movable V-shaped inclined iron 4 is connected to the optical axis rail slider 10; the end of the screw 7 is penetrated at the bottom of the movable V-shaped inclined iron 4; V-shaped irons 14 are respectively arranged on the inner sides of the movable V-shaped inclined iron 4 and the fixed V-shaped inclined iron 2; the two V-shaped irons 14 can be matched and positioned with the outer circle of the workpiece. The fixed V-shaped inclined iron 2 and the movable V-shaped inclined iron 4 are located on the same horizontal plane. The angle between the fixed V-shaped inclined iron 2 and the movable V-shaped inclined iron 4 and the bottom plate 1 is 45°.

[0032] A lever dial gauge 18 is arranged at the bottom of the fixed V-shaped inclined iron 2. The lever dial gauge 18 is arranged in the bolt hole 3 at the bottom of the fixed V-shaped inclined iron 2 through a universal gauge rod 17. The probe 19 of the lever dial gauge 18 can contact the position to be measured of the workpiece.

[0033] A handle 6 is provided at one end of the screw rod 7 away from the movable V-shaped inclined iron 4. The screw rod 7 is threadedly matched with the movable V-shaped inclined iron 4, the end of the screw rod 7 passes through the bottom of the movable V-shaped inclined iron 4, and a retaining spring 8 is provided at the position where the two side surfaces of the movable V-shaped inclined iron 4 contact with the screw rod 7.

[0034] The working process of this utility model: Figure 7 The figure is a schematic diagram of the structure of the simulated workpiece. By rotating the handle 6, the screw 7 is driven to rotate, thereby driving the movable V-shaped inclined iron 4 to move toward the fixed V-shaped inclined iron 2, so as to adjust the size of the opening between the two, and keep the simulated workpiece 16 to be tested parallel to the fixed V-shaped inclined iron 2 and the movable V-shaped inclined iron 4 of the inspection fixture, and place the workpiece positioning outer circle 23 at the position of the component V-shaped iron 14, and make the workpiece positioning end face 24 completely contact with the fixed V-shaped inclined iron 2 and the movable V-shaped inclined iron 4 of the inspection fixture. After the simulated workpiece 16 is placed, manually support it to be stable. During the inspection, adjust the probe 19 of the lever micrometer 18 to Figure 5 The simulated workpiece is manually rotated slowly for 2 circles. During the rotation of the workpiece, a force is manually applied in the direction of the angle between the movable V-shaped inclined iron 4 and the fixed V-shaped inclined iron 2 to ensure that the outer circle of the workpiece is in full contact with the V-shaped iron 14. The difference in the needle jump of the lever micrometer 18 is the parallelism of the simulated workpiece. Similarly, adjust the probe 19 of the lever micrometer 18 to Figure 6At the position shown, manually rotate the workpiece slowly for 2 circles, and the difference in the needle jump of the lever dial indicator is the coaxiality of the workpiece.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: modifying the technical solutions recorded in the foregoing embodiments, or equivalently replacing some or all of the technical features therein, does not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coaxiality inspection tool, characterized in that: include: A bottom plate (1), a fixed V-shaped inclined iron (2), a positioning bolt hole of a universal gauge rod (3), a movable V-shaped inclined iron (4), a fixed block (5), a handle (6), a screw rod (7), an optical axis slide rail (9), a square slide rail (13) and a lever micrometer (18); A fixed V-shaped inclined iron (2) is arranged on one end of the bottom plate (1); a fixed block (5) is arranged on the side surface of the other end of the bottom plate (1); a screw rod (7) is passed through the fixed block (5); An optical axis slide rail (9) and a square slide rail (13) are respectively arranged on both sides of the bottom plate (1); an optical axis slide rail slider (10) is slidably arranged on the optical axis slide rail (9); a square slide rail slider (12) is slidably arranged on the square slide rail (13); a movable V-shaped inclined iron (4) is arranged on the square slide rail slider (12); the bottom of the other end of the movable V-shaped inclined iron (4) is connected to the optical axis slide rail slider (10); the end of the screw rod (7) is inserted into the bottom of the movable V-shaped inclined iron (4); A lever dial gauge (18) is arranged at the bottom of the fixed V-shaped inclined iron (2).

2. The coaxiality inspection tool according to claim 1, characterized in that: V-shaped irons (14) are respectively arranged inside the movable V-shaped inclined iron (4) and the fixed V-shaped inclined iron (2).

3. The coaxiality inspection tool according to claim 1, characterized in that: A locking nut (11) is arranged on the side of the optical axis slide rail slider (10).

4. The coaxiality inspection tool according to claim 1, characterized in that: A handle (6) is provided at one end of the screw rod (7) away from the movable V-shaped inclined iron (4).

5. The coaxiality inspection tool according to claim 4, characterized in that: The screw rod (7) is threadably matched with the movable V-shaped inclined iron (4).

6. The coaxiality inspection tool according to claim 1, characterized in that: The lever micrometer (18) is arranged in a bolt hole (3) at the bottom of the fixed V-shaped inclined iron (2) through a universal meter rod (17).

7. The coaxiality inspection tool according to claim 6, characterized in that: The probe (19) of the lever micrometer (18) can contact the position to be measured of the workpiece.

8. The coaxiality inspection tool according to claim 1, characterized in that: Circlips (8) are sleeved on the positions where the two side surfaces of the movable V-shaped inclined iron (4) contact the screw rod (7).

9. The coaxiality inspection tool according to claim 1, characterized in that: The fixed V-shaped inclined iron (2) and the movable V-shaped inclined iron (4) are located on the same horizontal plane.

10. The coaxiality inspection tool according to claim 9, characterized in that: The angle between the fixed V-shaped inclined iron (2) and the movable V-shaped inclined iron (4) and the bottom plate (1) is in the range of 40° to 55°.

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