CN209961095U

CN209961095U - Dial gauge measuring tool capable of measuring inner circle and outer circle in large size

Info

Publication number: CN209961095U
Application number: CN201920718194.7U
Authority: CN
Inventors: 张涛; 谢雄彪
Original assignee: JIANGXI HONGDU PRECISION MACHINERY CO Ltd
Current assignee: JIANGXI HONGDU PRECISION MACHINERY CO Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-01-17
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a dial indicator measuring tool capable of measuring inner and outer circles in large size, which comprises a support rod, wherein one end of the support rod is provided with a kidney-shaped groove, a first fixed block is arranged in the kidney-shaped groove in a sliding manner, the first fixed block is provided with a through hole, a positioning rod is arranged in the through hole in a sliding manner, the side wall of the first fixed block is provided with a through hole, and a screw fixedly connects the first fixed block and the positioning rod through the through hole; the other end of the detection frame rod penetrates through the round hole matched with the internal dial indicator from top to bottom, the detection frame rod is located at one end of the internal dial indicator, a second fixing block is fixedly welded to the end, away from the second fixing block, of the end face of the detection frame rod is cut into a semicircle along the round hole and the vertical direction line of the length of the detection frame rod, and a boss is arranged at the lower end of the positioning rod towards the direction of the cushion block. The utility model discloses simple structure, witnessed inspections convenient to use has promoted measurement level and measurement accuracy, has solved the measurement difficulty of the accurate excircle of jumbo size of interior concave type, and measurement system's repeatability and reproducibility are better than other measuring tool, have ensured the part quality.

Description

Dial gauge measuring tool capable of measuring inner circle and outer circle in large size

Technical Field

The utility model relates to a insist instrument especially relates to a amesdial measuring tool of jumbo size measurable quantity inside and outside circle.

Background

In the machining production, a certain large part consists of two concentric rings (see figure 5 in detail) with different sizes, wherein the outer diameters of the two rings are larger (phi 787mm and phi 622mm respectively), the height 55 of the large ring is higher than that of the small ring 51, the top surface 51 of the small ring is shallower than the bottom 53 of the groove, and the dimensional tolerance of the excircle 52 of the small ring is only 0.05mm, if the measurement is carried out by using a large caliper (the precision grade is 0.02mm), the precision grade is not enough, but the large outer diameter micrometer is adopted, but the central height of the mechanical micrometer clamping point at the tail part of the bow-shaped frame is lower than that of the top surface 55 of the large ring, the extension of the mechanical micrometer is blocked by the inner diameter 54 of the large ring, and the central height of the mechanical micrometer clamping point is close to the highest end surface 51 of the mechanical micrometer clamping point by the shallower groove bottom, so that the measurement cannot be carried out.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a following technical scheme:

a micrometer gauge measuring tool capable of measuring an inner circle and an outer circle in a large size comprises a jig rod, wherein the jig rod is of a cuboid structure, one end of the jig rod is provided with a large and small stepped kidney-shaped groove, the kidney-shaped groove comprises an upper groove and a lower groove, the left and right width of the upper groove is larger than the left and right width of the lower groove, a first fixing block is arranged in the upper groove in a sliding mode, a first through hole is formed in the side wall of the upper groove of the jig rod, the fixing block arranged in the upper groove is fixedly connected with the first through hole through a first screw, a second through hole penetrates through the upper portion and the lower portion of the first fixing block, a positioning rod is arranged in the second through hole in a sliding mode, a third through hole is formed in the side; two cushion blocks are vertically arranged below the detection frame rod, a fourth through hole penetrates through the upper surface of the detection frame rod, which is positioned on the cushion blocks, from top to bottom, and the fourth through hole is fixedly connected with the detection frame rod and the cushion blocks through fourth screws; the other end of the frame checking rod vertically penetrates through a round hole matched with the inside dial indicator, the inside dial indicator comprises an indicator rod and an indicator head, one end of the indicator rod is fixedly connected with the indicator head, the frame checking rod is positioned on the surface of one end of the inside dial indicator and is linearly cut into a semicircle along the round hole and the vertical direction of the length of the frame checking rod, and the semicircle holds the indicator rod and the frame checking rod tightly through a fifth screw; and the lower end of the positioning rod is provided with a boss facing the direction of the cushion block.

Preferably, the boss is a steel ball, at least one half of the steel ball is embedded into the positioning rod, and the axis of the steel ball corresponds to the axis of the gauge rod of the inside dial indicator.

Preferably, the cushion block comprises a left cushion block and a right cushion block, the left cushion block and the right cushion block are made of the same material with the same size and height,

preferably, the second through hole is provided in a circular shape and/or a square shape.

Preferably, the number of the fourth through holes is four, and the number of the fourth screws is four.

Preferably, the first fixing block comprises a first fixing block upper part, a first fixing block middle part and a first fixing block lower part, the left and right width of the first fixing block upper part is the same as that of the first fixing block lower part, and the first fixing block middle part is provided with a protrusion.

Preferably, the vertical height of the first fixing block is set to be 55mm, and the positioning rod is set to be 120 mm.

Preferably, the inside dial indicator, the first fixing block and the positioning rod are all perpendicular to the detection frame rod.

Preferably, the lower end of the positioning rod is provided with a notch facing the direction of the cushion block, and the boss is located in the notch.

The utility model has the advantages that

(1) The utility model discloses simple structure, witnessed inspections convenient to use has promoted measurement level and measurement accuracy, has solved the measurement difficulty of the accurate excircle of jumbo size of interior concave type, and measurement system's repeatability and reproducibility are better than other measuring tool, have ensured the part quality.

(2) The utility model discloses put hack lever and cushion on the tang of part, because the locating lever and the internal dial indicator of measuring tool can be adjusted from top to bottom, so can make very easily about two check points guarantee on an online to do not bump the part tank bottom, the removal caliber that the workman can be very light accomplishes the measurement.

(3) The utility model discloses because the caliber is put on the part tang, this kind of large-size measuring tool is very light when measuring, and good visual angle etc. have guaranteed that measuring reproducibility and repeatability are better than other measuring tool, and in addition, when the rotatory 180 backs of locating lever and internal dial indicator, jumbo size part internal diameter can be measured again to this measuring tool.

Drawings

Fig. 1 is a diagram for implementing the present invention.

Fig. 2 is a schematic view of a first fixing block.

FIG. 3 is a schematic view of a positioning rod.

Fig. 4 is a schematic view of a gantry arm.

Fig. 5 is a schematic top view of the carriage bar.

FIG. 6 is a schematic view of a part to be tested.

Description of reference numerals: 1-a detection frame rod, 101-a first through hole, 102-a round hole, 2-an upper groove, 3-a lower groove, 4-a first fixed block, 401-an upper part of the first fixed block, 402-a middle part of the first fixed block, 403-a lower part of the first fixed block, 404-a second through hole, 405-a third through hole, 5-a positioning rod, 501-a notch, 502-a boss, 6-a left cushion block, 7-a right cushion block, 8-a fourth through hole, 9-a fourth screw, 10-a second fixed block, 11-an internal diameter dial indicator, 111-a gauge head, 112-a gauge rod and 12-a fifth screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

A dial gauge measuring tool capable of measuring an inner circle and an outer circle in a large size comprises a detection frame rod 1, wherein the detection frame rod 1 is of a cuboid structure, the size of the detection frame rod 1 is 28 x 40 x 700mm, and one end of the detection frame rod is provided with a large step-shaped kidney-shaped groove and a small step-shaped kidney-shaped groove; the first fixing block 4 comprises a first fixing block upper part 401, a first fixing block middle part 402 and a first fixing block lower part 403, the left and right widths of the first fixing block upper part 401 and the first fixing block lower part 403 are the same, the first fixing block middle part 402 is arranged in a protruding manner, the first fixing block lower part 403 is partially positioned in the lower groove 3, the length of the part is 3mm, the first fixing block middle part 402 is partially positioned in the upper groove 2, the length of the part is 4mm, and the vertical height of the first fixing block is 55 mm; the side wall of the upper groove 2 of the frame checking rod 1 is provided with a first through hole 101, a first fixed block 4 positioned in the upper groove 2 is fixedly connected with the inside of the first through hole 101 through a first screw, the middle part 402 of the first fixed block is in sliding fit with the upper groove 2, and the size of the first fixed block is 26f7 multiplied by 22 multiplied by 16 mm; a second through hole 404 penetrates through the first fixing block 4 from top to bottom, the second through hole 404 is square, the size of the second through hole 404 is 12 × 12H8, a positioning rod 5 is arranged in the second through hole 404 in a sliding manner, the vertical length of the positioning rod is 120mm, a third through hole 405 is formed in the side wall of the upper portion 401 of the first fixing block, and the first fixing block 4 and the positioning rod 5 are fixedly connected through the third through hole 405 by a third screw; the other end of the frame lever 1 is vertically provided with a round hole 102 in a penetrating manner, an inner dial indicator 11 matched with the round hole 102 is arranged in the round hole 102, the inner dial indicator 11 comprises an indicator rod 112 and an indicator head 111, and one end of the indicator rod 112 is fixedly connected with the indicator head 111; two cushion blocks are vertically arranged below the detection frame rod 1, a fourth through hole 8 penetrates through the upper surface of the detection frame rod 1, which is positioned on the cushion blocks, from top to bottom, the fourth through hole 8 is fixedly connected with the detection frame rod 1 and the cushion blocks through fourth screws 9, the cushion blocks comprise a left cushion block 6 and a right cushion block 7, the left cushion block 6 and the right cushion block 7 are identical in size and height and are made of the same material, and the two cushion blocks are arranged together for grinding, so that the height consistency of the two cushion blocks is ensured; the lower end of the positioning rod 5 is provided with a notch 501 towards the left cushion block 6, the boss 502 is positioned in the notch 501, the boss 502 is a steel ball, at least half of the steel ball is embedded into the positioning rod 5, the size of the notch 501 of the positioning rod 5 is set to be 12 x 12f7, the positioning rod 5 is in sliding fit with the second through hole 404, the up-and-down movement of the positioning rod 5 is adjusted, it is ensured that a left detection point and a right detection point formed by the steel ball arranged on the positioning rod 5 and the gauge rod 112 of the inside dial indicator 11 are on the same line and the proper depth of the outer circle is measured, the second through hole 404 in the first fixing block 4 is cut by the line, and the steel ball arranged on the positioning rod; the first fixing block 4, the positioning rod 5, the cushion block, the detector frame rod 1 and the second fixing block 10 are all made of 45 steel and are subjected to heat treatment, and the hardness is guaranteed to be HRC 33-35.

Example 2

The present embodiment is further optimized on the basis of embodiment 1, specifically, the surface of one end of the inside dial gauge 11 of the gantry lever 1 is linearly cut into a semicircle along the perpendicular direction of the circular hole 102 and the length of the gantry lever 1, and the semicircle clasps the gauge rod 112 of the inside dial gauge 11 to the gantry lever 1 through the fifth screw 12.

This embodiment is designed to protect the thin and thin watch stick 112 greatly and fix it by providing the semicircle and the fifth screw 12.

Example 3

The present embodiment is further optimized based on embodiments 1 and 2, specifically, the kidney-shaped groove includes an upper groove 2 and a lower groove 3, the size of the upper groove 2 is set to 26H8 × 55 × 16mm, and the first fixing block 4 is slidably disposed in the upper groove 2.

This embodiment is greater than the 3 sizes of low groove through setting up 2 sizes of upper groove, and the one side is convenient for first fixed block 4 left and right sides direction and is removed, and on the other hand is convenient for increase measuring distance.

Principle of operation

The utility model relates to a amesdial measuring tool of jumbo size measurable quantity inside and outside circle, during the use, when first fixed block 4, locating lever 5, left cushion 6, right cushion 7, second fixed block 10 are examined hack lever 1 and are installed and finish, and examine hack lever 1 and all adjust after finishing in two check points about, this inside amesdial 11 measuring tool of jumbo size excircle assembles and accomplishes, when detecting the part, put hack lever 1 and cushion on the tang of part, because locating lever 5 and inside amesdial 11 of measuring tool can be adjusted from top to bottom, so can make two check points guarantee on a line about very easily, and do not bump the part tank bottom, the workman can accomplish the measurement with very light removal caliber; before the utility model is used and detected, phi 622.300-0.05 mm of inspection gauge is needed to be checked and adjusted, and the internal dial indicator 11 is adopted, so that the measurement precision is improved to 0.001mm from 0.01 mm; because the measurer is placed on the part rabbet, the measuring tool with large size is very easy in measurement, and the good visual angle ensures that the measurement reproducibility and repeatability are better than those of other measuring tools; in addition, after the positioning rod 5 and the inside dial indicator 11 rotate 180 degrees, the measuring tool can measure the inside diameter of a large-size part.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The dial indicator measuring tool capable of measuring the inner circle and the outer circle in a large size is characterized by comprising a detection frame rod (1), wherein the detection frame rod (1) is of a cuboid structure, one end of the detection frame rod is provided with a large step-shaped kidney-shaped groove, the kidney-shaped groove comprises an upper groove (2) and a lower groove (3), the size of the upper groove (2) is larger than that of the lower groove (3), a first fixing block (4) is arranged in the upper groove (2) in a sliding mode, the detection frame rod (1) is positioned on the side wall of the upper groove (2) and provided with a first through hole (101), the first fixing block (4) positioned in the upper groove (2) is fixedly connected with the first through hole (101) through a first screw, a second through hole (404) penetrates through the first fixing block (4) from top to bottom, a positioning rod (5) is arranged in the second through hole (404) in a sliding mode, and a, the second screw fixedly connects the fixed block with the positioning rod (5) through a third through hole (405), the other end of the detection frame rod (1) penetrates through a round hole (102) from top to bottom, an inner dial indicator (11) matched with the round hole (102) is arranged in the round hole (102), the inner dial indicator (11) comprises a gauge rod (112) and a gauge head (111), one end of the gauge rod (112) is fixedly connected with the gauge head (111), the surface of one end, located on the inner dial indicator (11), of the detection frame rod (1) is cut into a semicircle along the round hole (102) and the vertical direction line of the length of the detection frame rod (1), the semicircle tightly holds the inner dial indicator (11) with the detection frame rod (1) through the third screw, two cushion blocks are vertically arranged below the detection frame rod (1), a fourth through hole (8) penetrates through the upper surface, located on the cushion blocks, of the detection frame rod (1), the fourth through hole (8) is fixedly connected with the detection frame rod (1) and the cushion block through a fourth screw (9); and a boss (502) is arranged at the lower end of the positioning rod (5) towards the direction of the cushion block.

2. The dial gauge for measuring the internal and external circles in the large size according to claim 1, characterized in that the boss (502) is a steel ball, at least half of the steel ball is embedded in the positioning rod (5), and the axis of the steel ball corresponds to the axis of the gauge rod (112) of the internal dial gauge (11).

3. The dial gauge measuring tool capable of measuring the inner circle and the outer circle in the large size according to claim 1, wherein the cushion blocks comprise a left cushion block (6) and a right cushion block (7), and the left cushion block (6) and the right cushion block (7) are made of the same material in the large size and the high height.

4. A micrometer gauge according to claim 1, wherein the second through hole (404) is circular and/or square.

5. A micrometer gauge for measuring inner and outer circles in large size according to claim 3, wherein the number of the fourth through holes (8) is four, and the number of the fourth screws (9) is four.

6. The dial gauge for measuring the inner and outer circles in the large size according to claim 1, wherein the first fixing block (4) comprises a first fixing block upper portion (401), a first fixing block middle portion (402) and a first fixing block lower portion (403), the front and back widths of the first fixing block upper portion (401) and the first fixing block lower portion (403) are the same, the first fixing block middle portion (402) is in a protruding arrangement, the first fixing block lower portion (403) is partially located in the lower groove (3), and the first fixing block middle portion (402) is partially located in the upper groove (2).

7. The dial gauge measuring tool capable of measuring the inner and outer circles in the large size according to claim 1, wherein the vertical height of the first fixing block (4) is set to be 55mm, and the positioning rod (5) is set to be 120 mm.

8. The dial indicator measuring tool capable of measuring the inner circle and the outer circle in the large size according to claim 1, wherein the inner dial indicator (11), the first fixing block (4) and the positioning rod (5) are perpendicular to the rack bar (1).

9. The dial gauge measuring tool capable of measuring the inner circle and the outer circle in a large size according to claim 1, wherein a notch (501) is formed in the lower end of the positioning rod (5) towards the left cushion block (6), and the boss (502) is located in the notch (501).