CN211234266U

CN211234266U - Measuring tool for measuring concentricity of large drill

Info

Publication number: CN211234266U
Application number: CN201921955823.4U
Authority: CN
Inventors: 张宴席; 王雪峰; 王俊锋
Original assignee: Nanyang Dingtai High Tech Co ltd
Current assignee: Nanyang Dingtai High Tech Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-08-11
Anticipated expiration: 2029-11-13

Abstract

The utility model relates to the field of PCB circuit board drill points, in particular to a large drill concentricity rapid measurement measuring tool, which comprises a base, a supporting table, a measuring hole, a threaded hole, a fastening bolt, a clamping block and a dial indicator, wherein the base is provided with four adjusting bolt supports at the bottom; the base with the brace table is the structure of falling T shape, fastening bolt passes the clamp splice with screw hole on the brace table is connected. The utility model provides a big brill concentricity measurement measuring tool has simple structure, measures the gimmick and simply, portable, with low costs, can in time adjust its concentricity in the big brill production process and guarantee the advantage of product yield.

Description

Measuring tool for measuring concentricity of large drill

Technical Field

The utility model relates to a PCB circuit board drill point field, concretely relates to bore concentricity short-term test measuring tool greatly.

Background

At present, concentricity is not easy to control in a production process of a large-drill-type drill point, and a measuring tool is required to ensure real-time monitoring and timely adjustment of concentricity parameters in the production process.

Disclosure of Invention

The utility model provides a solve foretell problem, and a big brill concentricity measures measuring tool that provides.

The utility model adopts the technical proposal that:

a measuring tool for measuring concentricity of a large drill comprises a base, a supporting table, a measuring hole, a threaded hole, a fastening bolt, a clamping block and a dial indicator, wherein the bottom of the base is provided with four adjusting bolt supports; the base with the brace table is the structure of falling T shape, fastening bolt passes the clamp splice with screw hole on the brace table is connected.

Further, the clamp splice is rectangular form including the same and in pairs left clamp splice and the right clamp splice that set up of structure, and the right flank intermediate position of left clamp splice is provided with U type groove along length direction, and U type inslot is seted up flutedly along length direction, and the head and the tail both ends of right flank all are provided with the through-hole along width direction, and fixing bolt passes the through-hole and connects about the clamp splice, controls and is provided with the bearing in the recess of clamp splice.

Furthermore, the through hole of the clamping block is an arc-shaped slotted hole.

Furthermore, the bearing is a ball bearing, and the height of the bearing is matched with the size of the groove of the clamping block.

Further, the pore size of the measured hole was 3.173 ± 0.001 mm, and the surface roughness value thereof was not more than 3.2 μm.

Furthermore, the base and the supporting platform are made of materials with strong wear resistance and strong corrosion resistance.

Further, the base and the support platform are fastened and connected through bolts.

The beneficial effects of the utility model reside in that:

1. the measuring tool of the application is small in whole volume, light in weight, convenient to place and measure, capable of being freely detached to carry at any time and free of limitation of use sites.

2. The measuring method is simple and convenient and easy to operate, an operator can quickly master skills, the bottom of the measuring tool is provided with the adjusting bolt, leveling and stabilizing of the measuring tool are facilitated, and the accuracy of measured data is guaranteed.

3. The measuring tool has simple structure and processing technology, low cost and can be popularized and used in the industry.

Drawings

Fig. 1 is a schematic structural diagram of a concentricity measuring tool for a big drill according to the present invention;

fig. 2 is a schematic structural view of the clamping block of the present invention.

In the figure: 1. a base; 2. a support table; 3. measuring a hole; 4. a threaded hole; 5. a clamping block; 6. adjusting the bolt; 7. fastening a bolt; 8. a dial indicator; 9. fixing the bolt; 10. a bearing; 11. a U-shaped groove; 12. a groove; 13. an arc-shaped slotted hole.

Detailed Description

The core of the utility model is to provide a big brill concentricity measurement measuring tool, including the base 1 that the bottom is provided with four adjusting bolt 6 supports, the brace table 2 of fixed connection with base 1, the measuring hole 3 of setting in the upper portion of brace table 2, the screw hole 4 of setting in the middle part position of the top surface of brace table 2, the fastening bolt 7 of being connected with screw hole 4 cooperation, the fixture block 5 of being connected with brace table 2 fastening and the dial indicator 8 of centre gripping on fixture block 5; the base 1 with 2 platforms of support are the structure of falling T shape, fastening bolt 7 passes clamp splice 5 with screw hole 4 on the brace table 2 is connected.

The clamp splice 5 is rectangular form including the same and in pairs left clamp splice and the right clamp splice that set up of structure, and the right flank intermediate position of left clamp splice is provided with U type groove 11 along length direction, has seted up recess 12 along length direction in the U type groove 11, and the head and the tail both ends of right flank all are provided with the through-hole along width direction, and clamp splice about fixing bolt 9 passes the through-hole connection is provided with bearing 10 in the recess 12 of left and right clamp splice, and the through-hole of clamp splice 5 is arc slotted hole 13.

The bearing 10 is a ball bearing, and the height of the bearing 10 is matched with the size of the groove 12 of the clamping block 5.

The aperture size of the measuring hole 3 is 3.173 +/-0.001 mm, the surface roughness value is not more than 3.2 microns, and the base 1 and the support platform 2 are made of materials with strong wear resistance and corrosion resistance.

The present invention will be further explained with reference to the accompanying drawings:

as shown in the figure: when the concrete measurement uses, pass through bolt-up with brace table 2 and base 1 and be connected, form the structure of falling T, pass arc slotted hole 13 preliminary location on brace table 2 with fastening bolt 7 for the clamp splice about earlier, then pass fixing bolt 9 in the through-hole, fix a position the clamp splice about, put into clamp splice 5's recess 12 with the percentage table 8 that overlaps there is bearing 10, screw up fastening bolt 7 and fixing bolt 9 in proper order after adjusting the position, so far, bore the concentricity measurement measuring tool equipment completion greatly, according to measuring environment during the use, use the position of the balanced measuring tool of adjusting bolt 6, so that improve the measuring accuracy.

The utility model discloses when using, only need place the measuring drill point of volume of awaiting measuring in measuring hole 3, adjust the position to the drill point cutting part and support 8 gauge outfits of percentage table, the big brill of manual rotation, pointer through observing percentage table 8 changes, judge whether the concentricity size of big brill meets the requirements, when the concentricity qualification rate of detecting batch product, only need place the big brill product of standard on this device, adjust the position of percentage table 8 to the pointer between two parties, fix percentage table 8 position afterwards, the product that will wait to detect is once put into wherein, observe the range of change of pointer, confirm its unqualified product. The utility model has the advantages of simple structure, can assemble and disassemble, portable.

According to the above-mentioned embodiment, the utility model provides a big brill concentricity measures measuring tool has simple structure, measures the gimmick simple and easy, portable, with low costs, can in time adjust its concentricity in big brill production process and guarantee the advantage of product yield.

Claims

1. A measuring tool for measuring concentricity of a big drill is characterized in that: the device comprises a base (1) with four adjusting bolt (6) supports arranged at the bottom, a supporting table (2) fixedly connected with the base (1), a measuring hole (3) arranged at the upper part of the supporting table (2), a threaded hole (4) arranged at the middle position of the top surface of the supporting table (2), a fastening bolt (7) in fit connection with the threaded hole (4), a clamping block (5) in fastening connection with the supporting table (2) and a dial indicator (8) clamped on the clamping block (5); the base (1) and the supporting table (2) are of an inverted T-shaped structure, and the fastening bolt (7) penetrates through the clamping block (5) and is connected with a threaded hole (4) in the supporting table (2).

2. A major drill concentricity measurement gauge according to claim 1, wherein: the clamp splice (5) are rectangular form including the same and in pairs left clamp splice and the right clamp splice that set up of structure, and the right flank intermediate position of left clamp splice is provided with U type groove (11) along length direction, offers recess (12) along length direction in U type groove (11), and the end to end both ends of right flank all are provided with the through-hole along width direction, and clamp splice about fixing bolt (9) pass the through-hole connection is provided with bearing (10) in recess (12) of left and right clamp splice.

3. A major drill concentricity measurement gauge according to claim 1, wherein: the through hole of the clamping block (5) is an arc-shaped slotted hole (13).

4. A major drill concentricity measurement gauge according to claim 2, wherein: the bearing (10) is a ball bearing, and the height of the bearing (10) is matched with the size of the groove of the clamping block (5).

5. A major drill concentricity measurement gauge according to claim 1, wherein: the pore size of the measuring hole (3) is 3.173 +/-0.001 mm, and the surface roughness value is not more than 3.2 mu m.

6. A major drill concentricity measurement gauge according to claim 1, wherein: the base (1) and the supporting platform (2) are made of materials with strong wear resistance and corrosion resistance.

7. A major drill concentricity measurement gauge according to claim 1, wherein: the base (1) and the support platform (2) are connected through bolts in a fastening mode.