CN211651446U - Gauge for detecting rifling lead of barrel - Google Patents
Gauge for detecting rifling lead of barrel Download PDFInfo
- Publication number
- CN211651446U CN211651446U CN202020623368.4U CN202020623368U CN211651446U CN 211651446 U CN211651446 U CN 211651446U CN 202020623368 U CN202020623368 U CN 202020623368U CN 211651446 U CN211651446 U CN 211651446U
- Authority
- CN
- China
- Prior art keywords
- barrel
- pointer
- measuring
- scale
- gauge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a gauge for detecting rifling lead of a barrel, which comprises a measuring body and an indicating device, wherein the measuring body comprises a measuring head and a measuring rod which are connected into a whole through screw threads and are used for being inserted into the barrel bore during detection, the indicating device comprises a pointer seat, a magnet and a pointer, the pointer seat is fixedly arranged at one end of the barrel, the magnet is arranged in the pointer seat, the pointer can be arranged beside the pointer seat in a vertical sliding way and is fixed on the pointer seat through magnetic adsorption, the center of the surface of the pointer is provided with an indicating line for indicating scale value during detection, the diameters of the measuring head and the measuring rod are smaller than the caliber of the barrel, the excircle surface of the measuring rod is provided with a scale and a marking line along the axial direction and is matched with the indicating line on the surface of the pointer during detection, the gauge has simple structure, convenient use, flexible operation and high measuring precision, only one measuring head needs to be specially made for a specific, the lead gauge universality is greatly improved, the manufacturing period is shortened, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the machining measuring tool field, concretely relates to detect gauge of barrel rifling helical pitch.
Background
The barrel line chamber is formed by cutting a plurality of U-shaped spiral grooves on the surface of a smooth cylindrical inner hole through a cutter, the main function is to endow a bullet with a rotating function in the live ammunition shooting process, the rotating stability is achieved, the bullet can stably fly to a predetermined target after flying out of the barrel chamber and is a key point influencing the shooting precision, the killing power, the service life and the like of a weapon system.
The barrel rifling lead refers to the distance between the adjacent intersection points of one spiral groove in the barrel bore and one generatrix of the cylindrical surface.
The barrel line bore structure is complex and is a deep small hole, the ratio of the total length to the inner diameter of the barrel is usually more than 75, and the measurement is difficult. At present, a rifling lead measuring device is composed of more than 20 parts with complex structures, and has the disadvantages of multiple material types, complex processes of cold and hot processing and surface treatment, high processing difficulty, long manufacturing period, large measuring error, inflexible operation and the like, and is gradually not suitable for the existing small-batch, multi-variety, rapid line changing and balanced production mode.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of large manufacturing difficulty, inflexible operation, large measuring error and the like of the barrel rifling lead gauge, the utility model provides a barrel rifling lead gauge with simple structure, convenient use, easy manufacture and accurate detection.
The utility model discloses a following technical scheme realizes:
the utility model provides a detect gauge of barrel rifling helical pitch, is including measuring body and indicating device, it includes gauge head and measuring staff to measure the body, even as an organic whole through the screw for fill in barrel bore during the detection, indicating device includes pointer seat, magnet and pointer, pointer seat fixed mounting is in barrel one end, and magnet sets up in the pointer seat, and what the pointer can slide from top to bottom sets up in the pointer seat side, fixes on the pointer seat through magnetic force adsorption, pointer surface center department is equipped with the instruction line for instruct the scale interval during the detection, gauge head and measuring staff diameter all are less than the barrel bore, the excircle surface of measuring staff has scale and mark line along the axial scale, mutually supports with the instruction line that indicates the needle surface during the detection, and when the gauge head rotates 360, gauge head axial displacement's distance is the helical pitch value of barrel rifling promptly.
Furthermore, the measuring head comprises a guide part at the front end, a measuring head body at the middle section and a threaded rod part at the tail part, the diameter of the guide part is smaller than the caliber of the barrel by 0.02-0.2 mm, and the number and the lead of the spiral grooves on the surface of the measuring head body are consistent with the rifling of the barrel.
Further, the measuring rod comprises a connecting section matched with the measuring head threaded rod part at the front end, a scale section in the middle section and a handle section at the tail part, a scale is axially carved on the scale section in the middle section, the minimum scale of the scale in the scale section is 1-10 mm, and the scale value range is from '0' scale to 'S' scalemaxThe scale is used for measuring and displaying the lead value of the rifling, and the outer circle surface of the scale section is marked with a marking line along the axial lead direction and is used for recording the initial position and the end position of the measuring body in the rotating process.
Further, pointer seat bottom inwards extends and is equipped with V type groove, and when the pointer seat passed through magnetic force fixed mounting on the barrel, the barrel excircle is hugged closely in V type groove, be equipped with the rectangular channel in the pointer seat for place magnet, pointer seat one side is equipped with the finger pinhole, is used for assembling the pointer.
Furthermore, a reticulate pattern is carved on the handle section on the measuring rod.
The utility model has the advantages that:
the utility model discloses measuring tool simple structure, convenient to use, the flexible operation, measurement accuracy is high, and only part need be purpose-made to specific product gauge head, and all other parts can both be general, have promoted helical pitch gauge commonality by a wide margin, reduce manufacturing cycle, improve production efficiency.
Drawings
Figure 1 is a diagram of the use of a gauge to detect the rifling lead of a barrel;
FIG. 2 is a cross-sectional view of a barrel rifling;
FIG. 3 is a front view of the measurement body;
FIG. 4 is a cross-sectional view of the probe body;
FIG. 5 is a front view of the indicating device;
fig. 6 is a right side view of the pointing device.
In the drawings:
1-barrel; 2-measuring the body; 3-an indication device; 11-barrel rifling; 21-a measuring head; 22-measuring bar; 23-a guide; 24-a probe body; 25-a threaded shank portion; 26-a connecting segment; 27-a scale segment; 28-a handle section; 29-mark line; 31-pointer seat; 32-a magnet; 33-a pointer; 34-V type groove; 35-indicating a line.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1-6, a gauge for checking the rifling lead of a barrel, as shown in fig. 2, the rifling 11 lead of a barrel 1 to be checked comprises a measuring body 2 and an indicating device 3, wherein the measuring body 2 comprises a measuring head 21 and a measuring rod 22 which are connected into a whole through threads and are used for plugging the barrel during checking,
as shown in fig. 3 and 4, the measuring head 21 comprises a guide part 23 at the front end, a measuring head body 24 at the middle section and a threaded rod part 25 at the tail part, the diameter of the guide part 23 is 0.02 mm-0.2 mm smaller than the caliber of the barrel 1, the structural appearance of the measuring head body 24 is identical with the structural appearance of the barrel rifling, the number and the lead of the surface spiral grooves are consistent with the barrel rifling 11,
the measuring rod 22 is smaller than the caliber of a barrel and comprises a connecting section 26 matched with the measuring head threaded rod part 25 at the front end, a scale section 27 at the middle section and a handle section 28 at the tail part, wherein a scale is engraved on the scale section 27 at the middle section along the axial direction, the minimum scale of the scale section is 1-10 mm, and the scale value range is from '0' scale to 'S' scalemax"Scale (S)maxIs a general processingThe maximum lead value of the barrel) for measuring and displaying the lead value of the rifling, the outer circle surface of the scale section is carved with a marking line 29 along the axial lead direction for recording the initial position and the end position of the rotation of the measuring body in the measuring process, and the handle section 28 is carved with a reticulate pattern.
In this embodiment, as shown in fig. 1, 5, and 6, the indicating device 3 includes a pointer seat 31, a magnet 32, and a pointer 33, the bottom of the pointer seat 31 extends inward to form a V-shaped groove 34, which has a self-centering effect, when the pointer seat 31 is fixedly mounted on the barrel 1 through magnetic force, the pointer seat is ensured to be positioned on the outer circumferential surface of the barrel through magnetic force to be attracted to the center, a rectangular groove is formed in the pointer seat 31 for placing the magnet 32, a pointer hole is formed in one side of the pointer seat 31 for assembling the pointer 33, the pointer 33 is of a cylindrical structure, an indicating line 35 is arranged at the center of the surface for indicating a scale value during detection, the pointer 33 can move up and down in the pointer seat hole, and is fixed in the pointer hole of the pointer seat through the attraction of.
The utility model discloses a use:
1. when the rifling lead of the barrel is measured, the gauge indicating device is installed and fixed at one end of the barrel, a measuring body measuring head is plugged into the bore of the barrel, the height of a pointer and the position of a pointer seat in the circumferential direction of the barrel are adjusted, and the pointer indicating line is ensured to be aligned with the marking line of the measuring rod and the scale position 0 of the scale section;
2. the measuring rod handle section is held by hand, the force is proper, the measuring head is uniformly and slowly pulled out until the pointer indicating line is aligned with the measuring rod marking line again, and at the moment, the measuring head just rotates for 360 degrees;
3. the distance of the measuring head moving axially, namely the scale value indicated by the pointer indicating line on the scale section, is the lead value of the bore of the barrel, so that the lead value of the barrel is measured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (5)
1. A gauge for detecting rifling lead of a barrel is characterized in that: including measuring body and indicating device, measure the body and include gauge head and measuring staff, link as an organic wholely through the screw thread for fill in the barrel bore during detecting, indicating device includes pointer seat, magnet and pointer, pointer seat fixed mounting is in barrel one end, and magnet sets up in the pointer seat, and what the pointer can slide from top to bottom sets up in the pointer seat side, fixes on the pointer seat through magnetic force absorption, pointer surface center department is equipped with the instruction line for instruct scale interval during the detection, gauge head and measuring staff diameter all are less than the barrel bore, the excircle surface of measuring staff has scale and mark line along the axial scale, mutually supports with the instruction line on indicator surface during the detection, and when the gauge head is rotatory 360, gauge head axial displacement's distance is the helical pitch value of barrel bore line promptly.
2. A gauge for detecting a barrel rifling lead according to claim 1, wherein: the measuring head comprises a guide part at the front end, a measuring head body at the middle section and a threaded rod part at the tail part, the diameter of the guide part is smaller than the caliber of the barrel by 0.02-0.2 mm, and the number and the lead of the spiral grooves on the surface of the measuring head body are consistent with the rifling of the barrel.
3. A gauge for detecting a barrel rifling lead according to claim 2, wherein: the measuring rod comprises a connecting section matched with the measuring head threaded rod part at the front end, a scale section in the middle section and a handle section at the tail part, wherein the scale section in the middle section is axially provided with a scale, the minimum scale of the scale in the scale section is 1-10 mm, and the scale value range is from '0' scale to 'S' scalemaxThe scale is used for measuring and displaying the lead value of the rifling, and the outer circle surface of the scale section is marked with a mark line along the axial lead direction and is used for recording the transfer of the measuring body in the measuring processA start position and an end position of the movement.
4. A gauge for detecting a barrel rifling lead according to claim 1, wherein: the bottom of the pointer seat extends inwards to form a V-shaped groove, when the pointer seat is fixedly installed on the barrel through magnetic force, the outer circle of the barrel is tightly attached to the V-shaped groove, a rectangular groove is formed in the pointer seat and used for placing a magnet, and a pointer hole is formed in one side of the pointer seat and used for assembling a pointer.
5. A gauge for detecting a barrel rifling lead according to claim 3, wherein: and a handle section on the measuring rod is carved with a reticulate pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020623368.4U CN211651446U (en) | 2020-04-23 | 2020-04-23 | Gauge for detecting rifling lead of barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020623368.4U CN211651446U (en) | 2020-04-23 | 2020-04-23 | Gauge for detecting rifling lead of barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651446U true CN211651446U (en) | 2020-10-09 |
Family
ID=72689376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020623368.4U Active CN211651446U (en) | 2020-04-23 | 2020-04-23 | Gauge for detecting rifling lead of barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211651446U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432505A (en) * | 2021-06-30 | 2021-09-24 | 北京科技大学 | High-precision measuring device for spiral rib lead of cladding tube |
| CN113607022A (en) * | 2021-09-02 | 2021-11-05 | 重庆建设工业(集团)有限责任公司 | Measuring device and measuring method for rapidly detecting winding degree of elongated tube thread chamber |
| CN115218746A (en) * | 2021-04-20 | 2022-10-21 | 中航西飞民用飞机有限责任公司 | Method and device for measuring tool extension of wire boring machine |
-
2020
- 2020-04-23 CN CN202020623368.4U patent/CN211651446U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218746A (en) * | 2021-04-20 | 2022-10-21 | 中航西飞民用飞机有限责任公司 | Method and device for measuring tool extension of wire boring machine |
| CN113432505A (en) * | 2021-06-30 | 2021-09-24 | 北京科技大学 | High-precision measuring device for spiral rib lead of cladding tube |
| CN113607022A (en) * | 2021-09-02 | 2021-11-05 | 重庆建设工业(集团)有限责任公司 | Measuring device and measuring method for rapidly detecting winding degree of elongated tube thread chamber |
| CN113607022B (en) * | 2021-09-02 | 2024-05-17 | 重庆建设工业(集团)有限责任公司 | Measuring device and measuring method for rapidly detecting winding degree of slender tube bore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211651446U (en) | Gauge for detecting rifling lead of barrel | |
| CN105547106A (en) | Deep hole inner diameter measuring device | |
| CN207317696U (en) | A kind of deep hole internal diameter measuring device | |
| CN202041156U (en) | Sliding sleeve type thread depth gauge with scale marks | |
| CN102261882B (en) | Six-claw double-measurement-position internal diameter measuring instrument | |
| CN202329492U (en) | Simple measuring pull rod for inner diameter of drum body of boiler pressure container | |
| CN109405707B (en) | Device for detecting pipe sleeve sealing line position by micrometer | |
| CN111829468B (en) | Multi-cone-section deep hole measuring device and using method thereof | |
| CN201697599U (en) | Tool for detecting the concentricity of spherical path of starlike inner race and spherical surface | |
| CN103323043B (en) | For probe locating device and the probe localization method of flow invariance | |
| CN110044228B (en) | High-precision multi-cone deep hole detection device and detection method | |
| CN205426046U (en) | Detect gauge of barrel rifle internal diameter | |
| CN202676119U (en) | Coaxality detector | |
| CN212620502U (en) | Inner hole measuring device for machine tool | |
| CN202048874U (en) | Six-claw double measuring position internal diameter measuring instrument | |
| CN209820382U (en) | Long tube inner hole size gauge | |
| CN210981077U (en) | Checking fixture for position degree of inner spherical surface of differential shell to reference straight hole | |
| US3780438A (en) | Rifling lands inspection gage | |
| CN208155239U (en) | A kind of threaded plug type air cooler plug hole perpendicularity detection tool device | |
| US4348812A (en) | Gun barrel internal diameter indicator | |
| CN111645009B (en) | Method and device for aligning winding angle of rifling product | |
| CN206540496U (en) | Heavy caliber deep bore helicla flute group helical pitch detection means | |
| CN220541960U (en) | Inner hole straightness measuring rod | |
| CN205280569U (en) | Optical fiber clamp | |
| CN214951083U (en) | Measuring device for perpendicularity of main shaft hole channel and slide channel hole of box body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |