CN212482357U - Inner diameter measuring tool - Google Patents
Inner diameter measuring tool Download PDFInfo
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- CN212482357U CN212482357U CN202021722212.8U CN202021722212U CN212482357U CN 212482357 U CN212482357 U CN 212482357U CN 202021722212 U CN202021722212 U CN 202021722212U CN 212482357 U CN212482357 U CN 212482357U
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Abstract
The utility model provides an internal diameter measuring tool, including the table frame, the base of table frame is the concave limit of half-circular arc, the base is fixed respectively along the both ends of half-circular arc diameter and is provided with adjustable gauge head and measuring meter, the axial direction of adjustable gauge head and measuring meter probe and the diameter collineation of half-circular arc, the probe orientation of measuring meter deviates from the centre of a circle direction on base. The utility model provides an internal diameter measuring tool suitable for in the boring bar processing, ability accurate measurement, convenient operation, simple structure.
Description
Technical Field
The utility model relates to hole measuring tool especially relates to a major diameter hole measuring tool.
Background
In the field of plunger pump machining, large pump housing parts are often machined, which usually have a set of bearing mounting holes, the requirements for the size and the coaxiality of the holes are high, and the maximum distance between the holes is large and exceeds the moving distance of a boring machine workbench. When the holes are finely machined by the boring machine, in order to ensure the requirements of size and coaxiality, a boring bar is used for machining, one end of the boring bar is connected with a spindle taper hole, the boring bar penetrates through the other end of a part and is connected with a tailstock of the boring machine, a cutter head is arranged on the boring bar, the cutter head is driven to rotate through the rotation of the spindle to complete machining, the cutter head can slide on the boring bar, after the machining of one hole is completed, the cutter head slides to the next position, and then the machining of a group of holes is completed. When adding man-hour, because the hole center has worn the boring bar, can't use the internal diameter percentage table to come the size of hole to measure, at present generally all measure the size of hole through the contrast with external micrometer with inside caliper, rely on operator's sensation to come the definite size in the operation process completely, can't directly read out the measurement size, measuring error is great, often produces the defective product.
Therefore, an inner diameter measuring tool which is suitable for boring bar machining, can accurately measure, is convenient to operate and has a simple structure needs to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an internal diameter measuring tool who is applicable to in the boring bar processing, can accurate measurement, convenient operation, simple structure.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an internal diameter measuring tool, includes the table frame, the base of table frame is the concave limit of semicircle arc, the base is fixed respectively along the both ends of semicircle arc diameter and is provided with adjustable gauge head and meter, the axial direction of adjustable gauge head and meter probe and the diameter collineation of semicircle arc, the probe orientation of meter deviates from the centre of a circle direction on base.
By adopting the technical scheme, when measurement is carried out in the processing process, according to the size of a processed hole, such as 520.7 +/-0.05 mm boring, the outside micrometer is adjusted to the size of the hole to be measured of 520.7mm, the adjustable measuring head is adjusted and then fixed, the position of the measuring gauge 4 is adjusted so that the distance between the end part of the adjustable side head and the end part of the probe of the measuring gauge 4 is 520.7mm, then the measuring gauge 4 is fixed, the probe of the measuring gauge 4 is in an extensible/retractable state at the moment, the dial plate of the measuring gauge is rotated to enable the pointer to be calibrated to return to zero, the measuring head of the adjustable measuring head 3 and the measuring probe are respectively contacted with the inner wall of the hole to be measured, the size of the inner hole size can be accurately read by slightly swinging the probe position of the measuring gauge 4 along the axial direction and the circumferential direction of the hole, for example, the small probe pointer of the measuring gauge 4 points to 3', and the probe extends out, the aperture can be directly read to be 520.73mm, the operation is convenient, and the precision is high.
As the utility model discloses a further setting, adjustable gauge head passes through the screw thread with the table frame and can dismantle the connection.
As the utility model discloses a further setting, the adjustable gauge head outside is provided with the external screw thread, the table frame be provided with the external screw thread assorted internal thread of adjustable gauge head.
As a further setting of the utility model, the adjustable measuring head is connected with the stop nut on the rod body close to the outside of the meter rack.
As the utility model discloses a further setting, the through-hole has been seted up to the one end that the gauge was connected to the table frame, the probe of gauge runs through the through-hole and stretches out the table frame, the bottom of table frame is provided with the screw hole, the screw hole communicates with the through-hole is perpendicular, threaded hole is provided with locking bolt.
By adopting the technical scheme, the adjustable measuring head is flexible and convenient to adjust, and the measuring meter is convenient and quick to adjust.
As a further setting of the utility model, the measuring meter is a dial indicator or a dial indicator.
As a further arrangement of the present invention, the watch holder is formed in a crescent shape.
As a further setting of the utility model, a plurality of lightening holes are arranged on the watch rack, the lightening holes are arranged along the arc on the surface of the watch rack
The beneficial effect of this scheme:
1. the utility model discloses a table frame is the semicircle arcuation, can avoid the boring bar at hole center during the measurement, measure the diameter of bore hole smoothly, design benefit, moreover, the steam generator is simple in structure, this scheme is used for carrying out the accurate measurement use under the rough numerical value's of known bore hole aperture condition, in operation, for example the bore hole aperture removes measuring aperture for 500mm with slide caliper rule in advance, but the numerical value inaccuracy in this bore hole aperture and adopt slide caliper rule measuring not necessarily to be located the numerical value on the bore hole diameter, consequently this measuring tool except measuring the accurate numerical value that the bore hole is accurate to 0.01 or even 0.001, can also guarantee that measuring is vertical the numerical value of the diameter of bore hole, the reliability that the side of improvement can data.
2. The utility model discloses a there is the lightening hole on the table frame, makes table frame weight little, improves the flexibility of the small removal of measuring tool along hole axial and circumference, improves the simple operation nature.
3. The utility model discloses a dial indicator is equipped with to the gauge stand, can accurate audio-visual measuring aperture through the dial indicator during use, and measurement accuracy can reach 0.01, and the precision can reach 0.001 when chooseing for use the amesdial, and the precision of measuring orifice diameter is high.
4. The utility model discloses adjustable gauge head can be adjusted and change, according to the aperture size of difference, changes the adjustable side head of different length and can realize measuring not equidimension diameter length, and the application is wide, and the commonality of instrument is strong.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of the inner diameter measuring tool of the present invention.
In the figure, the device comprises a meter frame 1, a meter frame 2, a bottom edge 3, an adjustable measuring head 4, a measuring meter 5, a stop nut 6, a through hole 7, a threaded hole 8, a locking bolt 9 and a lightening hole.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides an internal diameter measuring tool, including table frame 1, base 2 of table frame 1 is the concave limit of half-circular arc, base 2 is fixed respectively along the both ends of half-circular arc diameter and is provided with adjustable gauge head 3 and measuring meter 4, the axial direction of adjustable gauge head 3 and measuring meter 4 probe and the diameter collineation of half-circular arc, the probe orientation of measuring meter 4 deviates from the centre of a circle direction of base 2.
Specifically, the adjustable measuring head 3 is detachably connected with the meter frame 1 through threads.
Specifically, an external thread is arranged on the outer side of the adjustable measuring head 3, and an internal thread matched with the external thread of the adjustable measuring head 3 is arranged on the gauge stand 1. Specifically, a stop nut 5 is screwed on the rod body of the adjustable measuring head 3 close to the outer side of the meter frame 1.
Specifically, a through hole 6 is formed in one end, connected with the measuring meter 4, of the meter frame 1, a probe of the measuring meter 4 penetrates through the through hole 6 and extends out of the meter frame 1, a threaded hole 7 is formed in the bottom of the meter frame 1, the threaded hole 7 is vertically communicated with the through hole 6, and a locking bolt 8 is arranged in the threaded hole 7.
Specifically, the measuring gauge 4 is a dial indicator or a dial indicator. In particular, the watch frame 1 is arranged in a meniscus shape. Specifically, a plurality of lightening holes 9 are formed in the watch frame 1, and the lightening holes 9 are distributed along the surface of the watch frame 1 in an arc line.
The working principle is as follows: when measurement is carried out in the machining process, according to the size of a machined hole, such as a 520.7 +/-0.05 mm bore hole, an outer micrometer is adjusted to be 520.7mm in size of the hole to be measured, an adjustable measuring head is adjusted and then fixed, the position of a dial indicator is adjusted so that the distance between the end part of an adjustable side head and the end part of a probe of the dial indicator is 520.7mm, the position of the dial indicator is fixed through a locking bolt 8, the probe of the dial indicator is in a retractable/extendable state at the moment, a dial plate of the measuring indicator is rotated to enable a pointer to be calibrated to return to zero, the measuring head of the adjustable measuring head 3 and the measuring probe are respectively contacted with the inner wall of the hole to be measured, the measuring head of the adjustable measuring head 3 is not moved, the size of the inner hole size can be accurately read when the pointer of the dial indicator is adjusted to the maximum position by slightly swinging the probe position of the dial indicator along the axial direction and the circumferential direction of the hole, for, the aperture can be directly read to be 520.73mm, the operation is convenient, and the precision is high.
It is right above that the utility model provides an internal diameter measuring tool has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific embodiments, which are merely used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. The utility model provides an inner diameter measuring tool, its characterized in that, includes table frame (1), base (2) of table frame (1) are the semicircle arc concave edge, base (2) are fixed respectively along the both ends of semicircle arc diameter and are provided with adjustable gauge head (3) and meter (4), the axial direction of adjustable gauge head (3) and meter (4) probe and the diameter collineation of semicircle arc, the probe orientation of meter (4) deviates from the centre of a circle direction of base (2).
2. Inner diameter measuring tool according to claim 1, characterized in that the adjustable measuring head (3) is detachably connected to the frame (1) by means of a screw thread.
3. The inner diameter measuring tool according to claim 1, characterized in that the outside of the adjustable measuring head (3) is provided with an external thread, and the gauge stand (1) is provided with an internal thread matching the external thread of the adjustable measuring head (3).
4. The inner diameter measuring tool according to claim 3, characterized in that a stop nut (5) is screwed on the rod body of the adjustable measuring head (3) close to the outer side of the gauge stand (1).
5. The inner diameter measuring tool according to claim 1, wherein a through hole (6) is formed in one end, connected with the measuring meter (4), of the meter frame (1), a probe of the measuring meter (4) penetrates through the through hole (6) and extends out of the meter frame (1), a threaded hole (7) is formed in the bottom of the meter frame (1), the threaded hole (7) is vertically communicated with the through hole (6), and a locking bolt (8) is arranged in the threaded hole (7).
6. Inner diameter measuring tool according to claim 1, characterized in that the measuring gauge (4) is a dial gauge or a dial gauge.
7. Inner diameter measuring tool according to claim 1, characterized in that the gauge stand (1) is provided in the shape of a meniscus.
8. The inner diameter measuring tool according to claim 7, characterized in that a plurality of lightening holes (9) are arranged on the watch frame (1), and the lightening holes (9) are arranged along an arc line on the surface of the watch frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021722212.8U CN212482357U (en) | 2020-08-18 | 2020-08-18 | Inner diameter measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021722212.8U CN212482357U (en) | 2020-08-18 | 2020-08-18 | Inner diameter measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212482357U true CN212482357U (en) | 2021-02-05 |
Family
ID=74448498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021722212.8U Active CN212482357U (en) | 2020-08-18 | 2020-08-18 | Inner diameter measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212482357U (en) |
-
2020
- 2020-08-18 CN CN202021722212.8U patent/CN212482357U/en active Active
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