Rapid detection tool for excircles of shafts

Abstract

The utility model belongs to the technical field of roundness detection devices, and discloses a shaft outer circle rapid detection tool, which comprises a horizontally arranged bottom plate, a support frame is fixed on the bottom plate, a detection assembly used for detecting the roundness of a workpiece is arranged on the support frame, and the detection assembly comprises an upper positioning piece and a lower positioning piece which are oppositely arranged up and down. The upper positioning piece is installed on the supporting frame through the locking piece, the dial indicator is fixed to the upper end of the upper positioning piece, and the lower positioning piece is installed on the supporting frame in a threaded connection mode. The device is simple in structure and convenient to operate, solves the problem of low fixing speed of shaft workpieces, and improves the efficiency of roundness detection work.

Description

Technical Field

[0001] The utility model relates to the technical field of roundness detection devices, in particular to a tool for rapid detection of the outer circle of shafts. Background Art

[0002] In mechanical systems, shafts are usually required to fit with various hole parts (such as bearing inner holes, gear inner holes, etc.). If the outer roundness of the shaft does not meet the requirements, it is easy to cause uneven fitting clearance. When the shaft workpiece is rotating, the existence of the outer roundness error will cause the center of mass of the shaft to deviate from the center of rotation, causing the shaft to vibrate during rotation. If the roundness error is too large, it will cause obvious stress concentration on the shaft surface, resulting in poor bearing capacity of the shaft.

[0003] In the Chinese utility model patent application number 202320700360.7, a roundness meter is proposed. The main problems of this patent are: the structure of this patent is complex, and the fixing operation is relatively troublesome, and the fixing speed of shaft workpieces is slow, resulting in low detection efficiency. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a fast detection tool for the outer circle of shafts, which has a simple structure and is easy to operate, solves the problem of slow fixing speed of shaft workpieces, and improves the efficiency of roundness detection work.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A tool for rapid detection of the outer circle of a shaft comprises a horizontally arranged base plate, a support frame is fixed on the base plate, a detection component for detecting the roundness of a workpiece is arranged on the support frame, the detection component comprises an upper positioning member and a lower positioning member which are relatively arranged up and down, the upper positioning member is installed on the support frame through a locking member, a micrometer is fixed to the upper end of the upper positioning member, and the lower positioning member is installed on the support frame in a threaded connection manner.

[0007] The following is a further optimization of the above technical solution by the utility model:

[0008] The support frame includes a column fixed to the top of the base plate, a crossbar fixed to the upper end of the column, a U-shaped support member fixed to one end of the crossbar away from the column, and an upper positioning member and a lower positioning member are respectively arranged at both ends of the U-shaped support member.

[0009] Further optimization: a vertically arranged sliding hole is penetrated through the upper end of the U-shaped support member, an upper positioning member is slidably installed in the sliding hole, and an upper clamping block is arranged at one end of the upper positioning member extending out of the bottom of the sliding hole.

[0010] Further optimization: the locking piece is arranged in a direction perpendicular to the upper positioning piece, one end of the locking piece is installed in the U-shaped support piece in a threaded connection manner, and one end of the locking piece installed in the U-shaped support piece is pressed against the side wall of the upper positioning piece.

[0011] Further optimization: the lower positioning member is installed on the lower end of the U-shaped support member in a threaded connection manner, and a lower clamping block is fixed to the upper end of the lower positioning member.

[0012] The utility model adopts the above technical solution and has the following beneficial effects:

[0013] 1. The structure of the utility model is very simple, and it is also very simple and convenient to make. Compared with the traditional roundness inspection tool, which is difficult to manufacture and has high cost, the production cost of the utility model is lower and it is more convenient to use, thereby effectively reducing the cost investment in the production of shaft workpieces and improving the efficiency of roundness detection.

[0014] 2. By adjusting the upper and lower positioning parts, the positioning and fixing of shaft workpieces of different sizes can be achieved, and the roundness can be detected by a micrometer. The fixing operation process of the shaft workpiece is simple and the fixing speed is fast, which effectively improves the roundness detection efficiency of the shaft workpiece.

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the support frame in the embodiment of the utility model;

[0019] Figure 3 It is a schematic structural diagram of a U-shaped support member in an embodiment of the utility model.

[0020] In the figure: 1-base plate; 2-support frame; 21-column; 22-cross bar; 23-U-shaped support member; 3-detection component; 31-upper positioning member; 32-lower positioning member; 33-locking member; 34-micrometer; 35-upper clamping block; 36-lower clamping block; 4-sliding hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 3 As shown collectively, a tool for rapid detection of external circles of shafts includes a horizontally arranged base plate 1, a support frame 2 is fixed on the base plate 1, a detection component 3 for detecting the roundness of a workpiece is arranged on the support frame 2, and the detection component 3 includes an upper positioning member 31 and a lower positioning member 32 which are relatively arranged up and down, the upper positioning member 31 is installed on the support frame 2 through a locking member 33, a micrometer 34 is fixed to the upper end of the upper positioning member 31, and the lower positioning member 32 is installed on the support frame 2 in a threaded connection manner.

[0023] In this embodiment, the micrometer 34 is used to detect the roundness of the outer circle of the shaft workpiece.

[0024] In this embodiment, the micrometer 34 may also be replaced by a dial indicator.

[0025] In this embodiment, the upper positioning member 31 may be a cylindrical rod, which is slidably mounted on the U-shaped support member 23 in the vertical direction.

[0026] In this embodiment, the lower positioning member 32 may be a screw rod, which is installed on the U-shaped support member 23 in a threaded connection manner.

[0027] In this embodiment, the locking member 33 can be a bolt, which is installed in the U-shaped support member 23 in a threaded manner, and the end of the bolt is pressed against the side wall of the upper positioning member 31 to perform locking and limiting.

[0028] In this embodiment, the structure of the detection tooling is simple, and it is convenient for the workshop to manufacture it by itself, which effectively reduces the production cost investment. In addition, there is no manufacturing waiting time for the detection tooling, and the production efficiency of shaft workpieces is improved.

[0029] Among them, the support frame 2 includes a column 21 fixed to the top of the base plate 1, a cross bar 22 is fixed to the upper end of the column 21, a U-shaped support member 23 is fixed to one end of the cross bar 22 away from the column 21, and an upper positioning member 31 and a lower positioning member 32 are respectively arranged at both ends of the U-shaped support member 23.

[0030] A vertical sliding hole 4 is formed through the upper end of the U-shaped support member 23 . An upper positioning member 31 is slidably installed in the sliding hole 4 . An upper clamping block 35 is formed at one end of the upper positioning member 31 extending out of the bottom of the sliding hole 4 .

[0031] In this embodiment, the upper clamping block 35 can be a square block.

[0032] The locking member 33 is arranged in a direction perpendicular to the upper positioning member 31 , and one end of the locking member 33 is installed in the U-shaped support member 23 in a threaded manner. One end of the locking member 33 installed in the U-shaped support member 23 is pressed against the side wall of the upper positioning member 31 .

[0033] The lower positioning member 32 is installed on the lower end of the U-shaped support member 23 in a threaded connection manner, and a lower clamping block 36 is fixed to the upper end of the lower positioning member 32 .

[0034] In this embodiment, the lower clamping block 36 can be a semicircular block or a square block.

[0035] Compared with the traditional roundness detection device, the utility model adopts a two-point symmetrical clamping structure, which makes the fixing operation of shaft workpieces simpler, thereby speeding up the fixing and removal speed of shaft workpieces, and further improving the efficiency of roundness detection work.

[0036] The process of using the utility model to detect the roundness of shaft workpieces is as follows:

[0037] In the first step, the shaft workpiece is placed between the two ends of the U-shaped support member 23 .

[0038] In the second step, the locking member 33 is twisted outward to separate the end of the locking member 33 from the upper positioning member 31 .

[0039] The third step is to slide the upper positioning member 31 so that the upper clamping block 35 and the lower clamping block 36 are clamped on the outer circle of the shaft workpiece.

[0040] The fourth step is to twist the locking member 33 inwards to press the end of the locking member 33 against the side wall of the upper positioning member 31 to achieve locking and limiting of the upper positioning member 31 .

[0041] The fifth step is to use the micrometer 34 to check the outer circle roundness at the clamping position.

[0042] Step 6. After the inspection is completed, repeat the above steps 2 and 3 to loosen and remove the shaft workpiece.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool for rapid detection of the outer diameter of a shaft, comprising a horizontally arranged bottom plate (1), characterized in that: A support frame (2) is fixed on the base plate (1), and a detection assembly (3) for detecting the roundness of a workpiece is arranged on the support frame (2). The detection assembly (3) comprises an upper positioning member (31) and a lower positioning member (32) which are arranged opposite to each other in an upper and lower manner. The upper positioning member (31) is mounted on the support frame (2) via a locking member (33), a micrometer (34) is fixed to the upper end of the upper positioning member (31), and the lower positioning member (32) is mounted on the support frame (2) in a threaded manner.

2. The tool for rapid detection of shaft outer circle according to claim 1 is characterized in that: The support frame (2) comprises a column (21) fixed to the top of the base plate (1); a cross bar (22) is fixed to the upper end of the column (21); a U-shaped support member (23) is fixed to one end of the cross bar (22) away from the column (21); an upper positioning member (31) and a lower positioning member (32) are respectively arranged at both ends of the U-shaped support member (23).

3. A quick detection tool for shaft outer circle according to claim 2, characterized in that: A vertically arranged sliding hole (4) is penetrated through the upper end of the U-shaped support member (23), an upper positioning member (31) is slidably mounted in the sliding hole (4), and an upper clamping block (35) is arranged at one end of the upper positioning member (31) extending out of the bottom of the sliding hole (4).

4. A quick detection tool for shaft outer circle according to claim 3, characterized in that: The locking member (33) is arranged in a direction perpendicular to the upper positioning member (31), one end of the locking member (33) is installed in the U-shaped support member (23) in a threaded manner, and one end of the locking member (33) installed in the U-shaped support member (23) is pressed against the side wall of the upper positioning member (31).

5. The tool for rapid detection of shaft outer circle according to claim 4, characterized in that: The lower positioning member (32) is installed on the lower end of the U-shaped support member (23) in a threaded connection manner, and a lower clamping block (36) is fixed to the upper end of the lower positioning member (32).

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