CN214121126U

CN214121126U - Detection tool for detecting diameter and roundness of spherical surface

Info

Publication number: CN214121126U
Application number: CN202120375904.8U
Authority: CN
Inventors: 沈波; 梁景龙; 霍翔
Original assignee: Zhejiang Wanxiang Jialong Manufacturing Co ltd
Current assignee: Zhejiang Wanxiang Jialong Manufacturing Co ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-09-03
Anticipated expiration: 2031-02-19

Abstract

The utility model discloses a checking fixture for detecting the diameter and the roundness of a spherical surface, which comprises a checking fixture table, a spherical diameter gauge and a roundness gauge; the spherical positioning seat for containing the sphere is arranged on the detection tool table, a first measuring head support and a second measuring head support are respectively arranged on two radial sides of the detection tool table corresponding to the spherical positioning seat, and the height of the horizontal diameter of the sphere contained in the spherical positioning seat is the same as that of the position of a first measuring head of the first measuring head support and that of a second measuring head of the second measuring head support; the sphere diameter gauge is arranged above the checking fixture table and used for measuring the relative distance between the first measuring head and the second measuring head so as to determine the diameter of the corresponding sphere; the roundness measuring meter is arranged above the checking fixture table, the height of a telescopic probe of the roundness measuring meter is the same as the height of the first measuring head, and the telescopic probe of the roundness measuring meter is used for being pressed against the spherical surface of the sphere. The utility model discloses an examine sphere diameter and the circularity of detection bulb round pin that can be convenient, avoid artificial influence, provide and detect the precision.

Description

Detection tool for detecting diameter and roundness of spherical surface

Technical Field

The utility model relates to a measuring equipment technical field, in particular to an examine utensil for detecting spherical diameter and circularity.

Background

When a product is developed, part special characteristic dimensions are often drawn up according to product characteristics and matching with a counterpart, and after the product is produced, various measurement methods are needed to measure and verify the part dimensions so as to ensure the effectiveness of assembly or assembly. However, for some special sizes, most of detection processes are complicated by using a common detection tool, even some of the detection processes cannot be measured, for example, for a ball stud, the existing measurement method is to measure by using a micrometer, measure diameters of six groups of data in six different directions of a spherical surface respectively to obtain the diameters of the spherical surface, determine the spherical surface diameter according to the average value of the six groups of data, and define the spherical surface roundness as the extreme difference of the six groups of measured data.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome defect among the above-mentioned prior art, provide an examine utensil for detecting spherical diameter and circularity, easy operation, reliable can effectually reduce human error, improves the detection precision of spherical diameter and circularity.

In order to achieve the purpose, the utility model provides a checking fixture for detecting the diameter and the roundness of a spherical surface, which comprises a checking fixture table, a spherical diameter gauge and a roundness gauge;

the spherical positioning seat for containing the sphere is arranged on the detection tool table, a first measuring head support and a second measuring head support which can move in opposite directions or move away from each other are respectively arranged on two radial sides of the detection tool table corresponding to the spherical positioning seat, and the horizontal diameter height of the sphere contained in the spherical positioning seat is the same as the position where a first measuring head of the first measuring head support is located and the position where a second measuring head of the second measuring head support is located;

the sphere diameter gauge is arranged above the checking fixture table and used for measuring the relative distance between the first measuring head and the second measuring head so as to determine the diameter of the corresponding sphere;

the roundness measuring meter is arranged above the checking fixture table, the height of a telescopic probe of the roundness measuring meter is the same as the height of a first measuring head, and the telescopic probe of the roundness measuring meter is used for being pressed against the spherical surface of the sphere.

Further setting the following steps: the first measuring head support and the second measuring head support are arranged on the guide rail in a sliding mode, and a first notch allowing the first measuring head to penetrate through and a second notch allowing the second measuring head to penetrate through are formed in the checking fixture table.

Further setting the following steps: the gauge table is characterized in that a poking device is further arranged on the gauge table and comprises a push rod, a gear, a poking rod and a poking handle, the push rod is arranged below the gauge table in a sliding mode, the poking handle is connected with the push rod to link the push rod to slide, a tooth groove is formed in the upper end face of the push rod, the gear is meshed with the tooth groove of the push rod and is rotatably arranged below the gauge table, the two poking rods are fixedly arranged on the inner end face of the gear and are arranged between the first measuring head support and the second measuring head support, and the two poking rods can push the first measuring head support and the second measuring head support away along with the rotation of the gear.

Further setting the following steps: and a spring is connected between the first measuring head support and the second measuring head support in a butting mode.

Further setting the following steps: and a reference plate fixedly connected with the first measuring head support is arranged above the checking fixture table, the ball diameter gauge is fixedly connected with the second measuring head support, and a measuring probe of the ball diameter gauge is pressed on the reference plate.

Further setting the following steps: and a placing frame for placing the piece to be measured is arranged on one side of the checking fixture table.

Compared with the prior art, the utility model has simple and reasonable structure, the calibration block is used for calibrating the checking fixture during measurement, and the data is read through the sphere diameter scale and the roundness scale, thereby greatly reducing the influence of personal subjective feeling and greatly increasing the accuracy of the measurement result compared with manual measurement; and to the condition that needs acquire multiunit data, only need carry out the rotation of a plurality of angles with the measuring part and just can acquire the data on a plurality of not equidirectional, the circularity data also can read out on the scale very audio-visually, compare in manual measurement, it is convenient to the data reading of a plurality of directions, simplified the testing process, also reduced the uncertainty of circularity data measurement result simultaneously, whole examine utensil very big improvement the accuracy of inspection efficiency and data, it is also very convenient to operate.

Drawings

Fig. 1 is a schematic perspective view of a gauge for detecting spherical diameter and roundness according to the present invention;

FIG. 2 is a bottom view of the inventive fixture;

fig. 3 is a schematic view of the sectional structure a-a of fig. 2.

The following reference numerals are marked thereon in conjunction with the accompanying drawings:

1. a gauge stand; 11. a spherical positioning seat; 12. a first probe holder; 121. a first probe; 122. a reference plate; 13. a second probe holder; 131. a second probe; 14. a guide rail; 15. a shelf; 16. a spring; 2. a sphere diameter scale; 3. a roundness scale; 4. a poking device; 41. a push rod; 42. a gear; 43. a deflector rod; 44. pulling the handle open; 5. an element to be measured.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

The utility model relates to a gauge for detecting spherical diameter and circularity is shown in figure 1, including gauge stand 1, ball footpath scale 2 and circularity scale 3, this ball footpath scale 2 and circularity scale 3 are preferred amesdial, one side of this gauge stand 1 is provided with the rest 15 that is used for shelving the measured article 5 and/or calibration piece; wherein, the checking fixture table 1 is provided with a spherical positioning seat 11 for accommodating a piece to be measured 5 (a calibration piece or a ball stud), a first measuring head bracket 12 and a second measuring head bracket 13 are respectively arranged on the radial two sides of the checking fixture table 1 corresponding to the spherical positioning seat 11 in a sliding manner, the first stylus holder 12 and the second stylus holder 13 include a first stylus 121 and a second stylus 131, the first measuring head 121 and the second measuring head 131 are located at the same height as the horizontal diameter of the to-be-measured piece 5 accommodated in the spherical positioning seat 11 (i.e. the first measuring head 121 and the second measuring head 131 correspond to the horizontal diameter of the to-be-measured piece 5), the horizontal diameter of the piece to be measured 5 can be defined by clamping the piece to be measured 5 by the first measuring head 121 and the second measuring head 131, thus, the diameter of the to-be-measured part 5 can be conveniently read by measuring the distance between the first measuring head 121 and the second measuring head 131; the sphere diameter gauge 2 is arranged above the checking fixture table 1 and used for measuring the relative distance between the first measuring head 121 and the second measuring head 131 to determine the diameter of a corresponding sphere; the roundness measuring instrument 3 is installed above the checking fixture table 1, the height of the telescopic probe of the roundness measuring instrument 3 is the same as the height of the first measuring head 121, the telescopic probe of the roundness measuring instrument 3 is used for abutting against the spherical surface of the sphere, the telescopic probe of the roundness measuring instrument 3 can stretch out and draw back along with the change of the spherical surface of the part to be measured 5 to display different readings by rotating the part to be measured 5 accommodated in the spherical positioning seat 11, and the roundness precision of the part to be measured 5 is determined by reading the readings at different angles.

Specifically, as shown in fig. 1 and fig. 2, a guide rail 14 is arranged below the test tool table 1, the first measuring head support 12 and the second measuring head support 13 are installed on the guide rail 14 in a slidable manner, and the test tool table 1 is provided with a first notch through which the first measuring head 121 passes and a second notch through which the second measuring head 131 passes, so that the first measuring head support 12 and the second measuring head support 13 can be conveniently pushed to slide along the guide rail 14 in a slidable manner so as to press the first measuring head 121 and the second measuring head 131 against the spherical surface of the piece to be measured 5 to define the diameter; preferably, a reference plate 122 fixedly connected with the first measuring head support 12 is further arranged above the measuring tool table 1, the sphere diameter gauge 2 is fixedly connected with the second measuring head support 13, and the measuring probe of the sphere diameter gauge 2 is pressed against the reference plate 122, so that the reference plate 122 and the sphere diameter gauge 2 can move along with the first measuring head support 12 and the second measuring head support 13 respectively, the reading of the sphere diameter gauge 2 is adjusted through pre-calibration, and the diameter of the piece to be measured 5 can be conveniently read through measuring the relative distance between the reference plate 122 and the sphere diameter gauge 2; further preferably, a spring 16 is connected between the first measuring head support 12 and the second measuring head support 13 in an abutting manner, and an opposite acting force between the first measuring head support 12 and the second measuring head support 13 can be buffered by the spring 16, so that the first measuring head 121 and/or the second measuring head 131 are prevented from directly colliding with the member to be measured 5 to be damaged.

As shown in fig. 2 and 3, the testing fixture table 1 is further provided with a poking device 4, the poking device 4 includes a push rod 41, a gear 42, a poking rod 43 and a poking handle 44, the push rod 41 is installed below the testing fixture table 1 in an oriented sliding manner, the upper end face of the push rod 41 is provided with a plurality of tooth grooves engaged with the teeth of the gear 42 along the rod body thereof, the poking handle 44 is connected with the push rod 41 to drive the push rod 41 to directionally slide, the gear 42 is rotatably installed on the lower surface of the testing fixture table 1 and engaged with the tooth grooves of the push rod 41, the poking rods 43 are two and symmetrically installed on the inner end face of the gear 42, the two poking rods 43 are disposed between the first measuring head support 12 and the second measuring head support 13, and when the poking rods 43 rotate along with the gear 42, the first measuring head support 12 and the second measuring head support 13 can be poked (pushed open).

The above disclosure is only for the embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A detection tool for detecting the diameter and the roundness of a spherical surface is characterized by comprising a detection tool table, a spherical diameter scale and a roundness scale;

2. The gauge for detecting the diameter and the roundness of the spherical surface according to claim 1, wherein a guide rail is arranged below the gauge table, the first measuring head support and the second measuring head support are slidably and directionally mounted on the guide rail, and the gauge table is provided with a first notch through which the first measuring head passes and a second notch through which the second measuring head passes.

3. The gauge for detecting the diameter and the roundness of the spherical surface according to claim 2, wherein a poking device is further arranged on the gauge table, the poking device comprises a push rod, a gear, a poking rod and a poking handle, the push rod is slidably mounted below the gauge table, the poking handle is connected with the push rod to link the push rod to slide, a tooth groove is formed in the upper end face of the push rod, the gear is meshed with the tooth groove of the push rod and rotatably mounted below the gauge table, the poking rods are fixedly mounted on the inner end face of the gear, the poking rods are arranged between the first measuring head support and the second measuring head support, and the poking rods can push the first measuring head support and the second measuring head support away in the rotating process of the gear.

4. The gauge for detecting the diameter and the roundness of the spherical surface according to claim 2 or 3, wherein a spring is connected between the first measuring head support and the second measuring head support in an interference manner.

5. The gauge for detecting the diameter and the roundness of the spherical surface according to claim 2, wherein a reference plate fixedly connected with the first measuring head support is arranged above the gauge table, the ball diameter gauge is fixedly connected with the second measuring head support, and the measuring probe of the ball diameter gauge is pressed against the reference plate.

6. The checking fixture for detecting the diameter and the roundness of the spherical surface according to claim 1, wherein a rest for placing the piece to be measured is arranged on one side of the checking fixture table.