CN207923022U - A kind of rack cambered surface inspection tooling - Google Patents

Abstract

The utility model relates to a rack arc surface inspection tool, which comprises a base and a watch frame. The watch frame is arc-shaped and movably connected to one side of the base. A positioning block is arranged on the base. The positioning block and the watch The rack to be tested is placed between the racks, the positioning block has an arc-shaped surface matching the inner wall of the rack to be tested, and the curved surface of the table frame, the positioning block, and the rack to be tested are consistent with the bending direction , there are at least two detection tables for detecting the arc surface of the rack to be tested at intervals on the table frame. The rack arc surface inspection tooling described in the utility model can accurately measure through the difference of each detection table The amount of deformation of the arc surface of the rack can be checked to judge whether the rack is good or bad and whether it meets the needs of use.

Description

A rack camber inspection tool

technical field

The utility model relates to the technical field of arc surface detection, in particular to a rack arc surface inspection tool.

Background technique

The rack is a bar-shaped part that matches the gear. In order to meet the production needs, some racks are made into arcs.

Arc-shaped racks are widely used in various fields. Compared with linear racks, arc-shaped racks adopt an arc-shaped design. Relatively speaking, the connection and cooperation of racks is often a relatively precise process. Therefore, for The accuracy requirements of the radian are often very high. At present, the radian of the rack is judged by visual inspection or simple measuring tools. This detection method has relatively large errors and is not suitable for high-precision requirements. The required racks will flow into the market, burying hidden dangers for product safety and user experience. In addition, the rack needs to be detected in real time, which will affect the work efficiency.

Therefore, it is necessary to further improve the existing inspection equipment for the arc surface of the rack.

Utility model content

In view of this, the utility model aims to provide a rack arc surface inspection tool, which can conveniently, efficiently and accurately detect the arc surface of the rack.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A rack arc surface inspection tool, including a base and a meter frame, the meter frame is arc-shaped and movably connected to one side of the base, a positioning block is arranged on the base, and a positioning block is placed between the positioning block and the meter frame There is a rack to be tested, the positioning block has an arcuate surface matched with the inner wall of the rack to be tested, the curved surface of the meter frame, the positioning block and the bending direction of the rack to be tested are consistent, the meter At least two detection tables for detecting the arc surface of the rack to be tested are arranged at intervals on the rack.

Further, the watch frame includes a circular arc part and connecting parts and pressing parts respectively located at both ends of the circular arc part, and the base is respectively provided with a first groove capable of accommodating the connecting part and accommodating the pressing part the second groove. In this way, it is convenient for the table frame to be pressed down to realize measurement.

In order to facilitate the installation of the test meter, preferably, the arc portion is separated from a through hole for the insertion of the measuring rod of the test meter, and the measuring head of the measuring rod passes through the through hole and can be connected with the measuring rod to be tested. The outer side walls of the rack are in contact.

Further, the first groove and the connecting portion are correspondingly provided with a mounting hole through which the rotating shaft passes, and the rotating shaft passes through the mounting hole to movably connect the watch frame to the base.

More preferably, a bearing suitable for the rotating shaft is arranged in the installation hole.

Further, the two ends of the arc surface of the positioning block have fixed teeth adapted to the rack to be tested. In this way, the placement and assembly of the rack is facilitated.

Further, a limit stop is also provided on the base, and the limit stop is located on one side of the pressing part for positioning the rack to be tested between the limit stop and the connecting part. In this way, the rack can be prevented from sliding to both sides.

Further, the base is provided with a first stopper and a second stopper, and the first stopper and the second stopper are respectively located on the front and rear sides of the positioning block, so as to limit the front and rear of the rack to be tested. move. This prevents the rack from moving back and forth.

Further, it also includes an adjustment block that is convenient for setting the degree of the test meter to zero.

Further, the curved surfaces of the meter frame, the positioning block and the rack to be tested are consistent, that is, they are concentric circles.

Compared with the prior art, the rack arc inspection tool described in the utility model has the following advantages:

The rack arc surface inspection tool described in the utility model includes a base and a table frame. The table frame is arc-shaped and is movably connected to one side of the base. A positioning block is arranged on the base. The rack, the arc surface of the table frame, the positioning block and the bending direction of the rack to be tested are consistent, and at least two detection tables for detecting the arc surface of the rack to be tested are arranged at intervals on the table frame. The structural design of the test table is reasonable, and the deformation of the arc surface of the rack can be accurately measured through the difference between the test tables, so as to judge the quality of the rack and whether it meets the needs of use. The measurement is convenient, efficient and accurate.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a structural schematic diagram of the rack arc surface inspection tool described in the embodiment of the present invention;

Fig. 2 is a front view of the rack arc surface inspection tool described in the embodiment of the present invention;

Fig. 3 is a top view of the base of the rack arc inspection tool described in the embodiment of the present invention;

Fig. 4 is a sectional view along the A-A direction of Fig. 3;

Fig. 5 is a schematic structural view of the meter frame in the rack arc surface inspection tooling described in the embodiment of the present invention;

Fig. 6 is a schematic structural view of the positioning block in the rack arc surface inspection tool according to the embodiment of the present invention.

Explanation of reference signs:

1-base, 11-first groove, 12-second groove, 13-first stopper, 14-second stopper, 2-table frame, 21-arc part, 211-through hole, 22- Connecting part, 23-pressing part, 3-positioning block, 3a-arc surface, 31-fixed tooth, 4-detection table, 41-measurement rod, 5-installation hole, 6-limit stopper, 7-to-be-tested rack.

Detailed ways

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figures 1 to 6, the inspection tooling for rack arc surface in this embodiment includes a base 1 and a watch frame 2, the watch frame 2 is arc-shaped and movably connected to one side of the base 1, and the base 1 is provided with a positioning block 3. A rack 7 to be tested is arranged between the positioning block 3 and the watch frame 2. The positioning block 3 has an arcuate surface 3a that matches the inner wall of the rack 7 to be tested. Both ends of the arcuate surface 3a have Measure the fixed tooth 31 that tooth bar 7 matches.

In this embodiment, the curved surface 3a of the table frame 2, the positioning block 3 and the bending direction of the rack 7 to be tested are consistent. Specifically, the curved surface 3a of the table frame 2, the positioning block 3, and the rack 7 to be tested The radians are consistent, that is, concentric circles, to ensure the accuracy of the detection results, at least two detection tables 4 for detecting the arc surface of the rack 7 to be tested are arranged at intervals on the table frame 2, in this embodiment, the detection Table 4 is three dial gauges 4. When in use, the dial gauges can be replaced with dial gauges according to the usage requirements, and the number of detection gauges 4 should be adjusted accordingly. Before the detection gauge 4 is used, the degree needs to be set to zero through the adjustment block.

The watch frame 2 in this embodiment specifically includes a circular arc portion 21 and a connecting portion 22 and a pressing portion 23 respectively located at both ends of the circular arc portion 21, and the base 1 is respectively provided with first grooves 11 capable of accommodating the connecting portion 22 and the second groove 12 for accommodating the pressing portion 23, the circular arc portion 21 is spaced apart from a through hole 211 for inserting the measuring rod 41 of the test meter 4, and the measuring head of the measuring rod 41 passes through the through hole 211 and It can be in contact with the outer wall of the rack 7 to be tested. The first groove 11 and the connecting portion 22 are correspondingly provided with a mounting hole 5 for the shaft to pass through. The mounting hole 5 is equipped with a bearing that is compatible with the shaft. The bearing in the embodiment adopts SF-0810 oil-free bearing, and the rotating shaft passes through the mounting hole 5 to movably connect the watch frame 2 to the base 1 .

In this embodiment, a limit stopper 6 is also provided on the base 1, and the limit stopper 6 is located on one side of the pressing part 23 for positioning the rack 7 to be tested between the limit stopper 6 and the connecting part 22. At the same time, in this embodiment, the base 1 is provided with a first stopper 13 and a second stopper 14, the first stopper 13 and the second stopper 14 are respectively located on the front and rear sides of the positioning block 3 for use To limit the front and rear movement of the rack 7 to be tested.

When in use, the lower surface of the rack is first supported by the positioning block 3. Normally, the positioning block 3 will fit the lower surface of the rack, which can effectively fix the rack on the tooling. If the deformation of the rack is large, it cannot be aligned with the positioning block. 3 fit, can initially and quickly select and identify unqualified racks, and then measure the fit of the arc surface of the rack through three dial indicators on the concentric arc with the rack, and read the three dial indicators For the reading, the difference between the maximum value and the minimum value is used. The difference value can be determined according to the actual required accuracy. The dial indicator can change the slight deformation of the arc surface through the small linear movement of the measuring rod caused by the measured size, and through the gear transmission amplification, it becomes The pointer rotates on the dial to read the size of the measured size, so the inspection accuracy is higher than other inspection methods. The adjustment block is used as a tool to adjust the reading of the dial indicator to zero before inspection, and the dial indicator The upper and lower heights can be adjusted according to actual usage.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. a kind of rack cambered surface examines tooling, it is characterised in that：Including pedestal (1) and dial framework (2), the dial framework (2) is arc-shaped And it is movably connected in the side of pedestal (1), locating piece (3), the locating piece (3) and dial framework (2) are provided on the pedestal (1) Between be placed with rack to be measured (7), the locating piece (3) have with the matched arcwall face of rack to be measured (7) madial wall (3a), The bending direction of the dial framework (2), the arcwall face (3a) of locating piece (3) and rack to be measured (7) is consistent, the dial framework (2) On be arranged at intervals at least two for detecting the detection tables (4) of rack to be measured (7) cambered surface.

2. rack cambered surface according to claim 1 examines tooling, it is characterised in that：The dial framework (2) includes arc sections (21) and interconnecting piece (22) and press section (23) at arc sections (21) both ends are located at, are opened up respectively on the pedestal (1) There is the second groove (12) of the first groove (11) and accommodating press section (23) that can house the interconnecting piece (22).

3. rack cambered surface according to claim 2 examines tooling, it is characterised in that：It is spaced and opens up on the arc sections (21) There are the through-hole (211) that the measuring rod (41) for the detection table (4) plugs, the measurement head of the measuring rod (41) to pass through the through-hole (211) it and can be in contact with the lateral wall of rack to be measured (7).

4. rack cambered surface according to claim 2 examines tooling, it is characterised in that：First groove (11) and interconnecting piece (22) corresponding on to offer the mounting hole (5) passed through for shaft, the shaft passes through mounting hole (5) to be flexibly connected dial framework (2) On the pedestal (1).

5. rack cambered surface according to claim 4 examines tooling, it is characterised in that：Be equipped in the mounting hole (5) with The compatible bearing of the shaft.

6. rack cambered surface according to claim 1 examines tooling, it is characterised in that：Locating piece (3) arcwall face (3a) Both ends have with rack to be measured (7) compatible fixed tooth (31).

7. the rack cambered surface according to any one of claim 2 to 6 claim examines tooling, it is characterised in that：It is described Limited block (6) is additionally provided on pedestal (1), the limited block (6) is located at the side of press section (23), to by tooth to be measured Item (7) is positioned between the limited block (6) and interconnecting piece (22).

8. rack cambered surface according to claim 7 examines tooling, it is characterised in that：It is provided with first on the pedestal (1) Block (13) and the second block (14), first block (13) and the second block (14) are located at the locating piece (3) Front and rear sides are moved forward and backward for limiting rack (7) to be measured.

9. rack cambered surface according to claim 1 examines tooling, it is characterised in that：Further include having to be convenient for detection table (4) The adjustment block of number of degrees zero setting.

10. rack cambered surface according to claim 1 examines tooling, it is characterised in that：The dial framework (2), locating piece (3) The radian of arcwall face (3a) and rack to be measured (7) is consistent, as concentric circles.