CN215356335U

CN215356335U - Tool for machining probe pressure measuring hole in wind tunnel test device

Info

Publication number: CN215356335U
Application number: CN202121848626.XU
Authority: CN
Inventors: 舒凤金; 杨纪来
Original assignee: Baoding Kaiborui Machinery Manufacturing Co ltd
Current assignee: Baoding Kaiborui Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-12-31
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a tool for machining a probe pressure measuring hole in a wind tunnel test device, which comprises a drilling jig platform, a clamping part and a limiting support assembly, wherein the clamping part and the limiting support assembly are arranged on the drilling jig platform in a collinear manner; the clamping part is provided with a positioning hole for clamping the probe, and a guide hole which is arranged on the clamping part and communicated with the positioning hole for guiding the drill bit. When the probe pressure measuring hole is machined, the guide hole can guide the drill bit to drill, so that the drilling precision can be effectively improved, and the drill bit is prevented from being broken. The utility model is suitable for use in drilling an elongate workpiece such as a probe for holding the elongate workpiece.

Description

Tool for machining probe pressure measuring hole in wind tunnel test device

Technical Field

The utility model belongs to the technical field of drilling tools, and particularly relates to a tool for machining a probe pressure measuring hole in a wind tunnel test device.

Background

The existing drilling equipment generally utilizes a universal fixture to clamp a workpiece, and drills holes through a drill after manual alignment. However, in practice, the following problems often exist in the process of drilling a slender tapered probe, especially in the process of machining a probe pressure measuring hole in a wind tunnel test device:

1. because the probe is a cone and the universal fixture is two clamping blocks which are parallel up and down, when the universal fixture is used for clamping the probe, the contact area between the universal fixture and the probe is small, and the stability of clamping the probe cannot be ensured;

2. when the drilling position is determined manually, the vibration of the drill bit can be driven by manual hand vibration, so that the final drilling position is deviated, and the drilling precision is low;

3. when the probe is drilled, the outer surface of the probe is an arc-shaped surface, so that the drill bit is easy to sideslip in the drilling process, and the drill bit for drilling is too thin, so that the drill bit is easy to break.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide the tool for machining the probe pressure measuring hole in the wind tunnel test device, so that the drilling operation of a conical workpiece is simplified, and the condition that a drill bit is broken off in the drilling process is reduced.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a tool for machining a probe pressure measuring hole in a wind tunnel test device comprises a drill jig platform, a clamping part and a limiting support assembly, wherein the clamping part and the limiting support assembly are arranged on the drill jig platform in a collinear manner;

the clamping part is provided with a positioning hole for clamping the probe, and a guide hole which is arranged on the clamping part and communicated with the positioning hole for guiding the drill bit.

As a limitation of the utility model, the positioning hole is a tapered hole, and a top generatrix of the positioning hole is vertical to an axis of the guide hole.

As another limitation of the utility model, the limit support component comprises a limit support block which is arranged on the drill jig platform in a sliding manner, and a locking screw which is connected to the limit support block in a threaded manner and is used for limiting the fixed position of the limit support block on the drill jig platform; and the limiting supporting block is provided with a limiting groove for clamping the probe.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

(1) the clamping part arranged in the drilling jig can clamp the probe in the clamping part for fixing under the coordination of the limiting support assembly, and the drilling jig can adapt to probes with different lengths by adjusting the position of the limiting support assembly on the drilling jig platform, so that the adaptability of the drilling jig is enhanced. The drill bit can block and put in the guiding hole, and alignment when can convenient to use drill bit drilling promotes drilling accuracy, can avoid the drill bit to take place to sideslip simultaneously, and then can avoid the drill bit rupture.

(2) The positioning hole is a conical hole, so that the contact area between the positioning hole and the probe can be increased, and the axial movement of the probe is limited by the cooperation of the positioning hole and the limiting support assembly.

(3) The limiting supporting block is provided with the limiting groove, so that the probe can be prevented from moving along the axial direction of the probe, the probe can be prevented from rotating along the circumferential direction of the probe, the drill bit and the probe can not move relatively, and the drilling precision is guaranteed.

Drawings

The utility model is described in further detail below with reference to the figures and the embodiments.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a top view of the structure of an embodiment of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a schematic view of the embodiment of the present invention and the use state of the probe.

In the figure: 1. drilling a mold platform; 2. a clamping portion; 3. positioning holes; 4. a guide hole; 5. a limiting supporting block; 6. locking the screw; 7. a limiting groove; 8. and (3) a probe.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the description of the preferred embodiment is only for purposes of illustration and understanding, and is not intended to limit the utility model.

Embodiment of the utility model relates to a tool for processing a probe pressure measuring hole in a wind tunnel test device

As shown in fig. 1 to 5, the present embodiment includes a jig platform 1, a clamping portion 2, and a limiting support assembly. This embodiment is mutually supported through the spacing supporting component of clamping part 2, can put probe 8 card on jig platform 1, when utilizing drilling equipment to drill to probe 8, can simplify its drilling operation to reduce the condition of drilling in-process drill bit rupture.

Specifically, as shown in fig. 1, the jig platform 1 is a rectangular cylinder, the top end of the jig platform 1 is fixedly provided with the clamping portion 2, the clamping portion 2 is provided with a positioning hole 3 for clamping the probe 8, and the positioning hole 3 is a tapered hole corresponding to the shape of the probe 8, so that the contact area with the probe 8 can be increased, and the probe 8 is limited in the axial direction. The top end of the clamping part 2 is provided with a guide hole 4 communicated with the positioning hole 3, and the axis of the guide hole 4 is perpendicular to the axis of the positioning hole 3, as shown in fig. 4. The guide hole 4 can facilitate the alignment of the drill bit, accurately determine the position of the drill hole to be drilled, and avoid the situation that the drill bit slides during working to cause the breakage of the drill bit.

And the limiting support assembly is arranged at the top end of the drill jig platform 1 in a sliding manner. Specifically, as shown in fig. 1, the limit supporting device includes a limit supporting block 5 slidably disposed on the drill jig platform 1, and a locking screw 6 threadedly connected to the limit supporting block 5. Spacing groove 7 that is used for connecting probe 8 is offered on the top of spacing supporting shoe 5, probe 8 card is put at spacing groove 7, in-service use, probe 8 card is arranged in the one end of spacing groove 7 and is fixed with the connecting block, spacing groove 7 is corresponding with the shape of connecting block, wherein, the connecting block in this embodiment is the rectangular cylinder, spacing groove 7 is the rectangular channel corresponding with the connecting block form, size, spacing groove 7 can avoid probe 8 to rotate in circumference, and the recess that is used for card to put jig platform 1 is offered to the bottom of spacing supporting shoe 5. The side wall of the groove is provided with a threaded hole in threaded connection with the locking screw 6, the locking screw 6 can be abutted against the drill jig platform 1 by rotating the locking screw 6, so that the position of the limiting support block 5 on the drill jig platform 1 is limited, and the probe 8 is axially fixed.

When the probe 8 is fixed and drilling is carried out through the tool, firstly, the locking screw 6 is loosened, the tip end of the probe 8 is inserted into the positioning hole 3, the other end of the probe 8 is clamped in the limiting groove 7, then, the limiting support block 5 is moved, the probe 8 is jacked in the positioning hole 3, at the moment, the locking screw 6 is rotated, the limiting support block 5 is fixed on the drill jig platform 1, the probe 8 is prevented from moving in the axial direction and the circumferential direction, and the fixing of the probe 8 on the tool is realized;

then, the drill of the drilling equipment is passed into the guide hole 4 to drill the probe 8, thereby completing the drilling of the probe 8.

When the utility model is used for processing the pressure measuring hole of the probe 8, the guide hole 4 can guide the drill bit to drill, thereby effectively improving the drilling precision and avoiding the occurrence of the situation of breaking the drill bit.

Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a frock for processing probe pressure cell among wind-tunnel test device which characterized in that: the device comprises a drilling jig platform, a clamping part and a limiting support assembly, wherein the clamping part and the limiting support assembly are arranged on the drilling jig platform in a collinear manner;

2. The tool for machining the probe pressure measuring hole in the wind tunnel test device according to claim 1, wherein the tool comprises: the locating hole is a taper hole, and a top generatrix of the locating hole is vertical to the axis of the guide hole.

3. The tool for machining the probe pressure measuring hole in the wind tunnel test device according to claim 1 or 2, wherein the tool comprises: the limiting support assembly comprises a limiting support block arranged on the drill jig platform in a sliding mode and a locking screw which is in threaded connection with the limiting support block and used for limiting the fixed position of the limiting support block on the drill jig platform; and the limiting supporting block is provided with a limiting groove for clamping the probe.