CN211626296U - Vernier type thread depth gauge checking fixture - Google Patents
Vernier type thread depth gauge checking fixture Download PDFInfo
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- CN211626296U CN211626296U CN202020688661.9U CN202020688661U CN211626296U CN 211626296 U CN211626296 U CN 211626296U CN 202020688661 U CN202020688661 U CN 202020688661U CN 211626296 U CN211626296 U CN 211626296U
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Abstract
The utility model discloses an utensil is examined to vernier formula screw thread depth gauge belongs to measuring tool technical field. The vernier type thread depth gauge comprises a gauge body, a mandrel, a through-end thread gauge head and a stop-end thread gauge head, and further comprises a movable sleeve, a spring and a bearing, wherein the movable sleeve is movably sleeved between the gauge body and the mandrel, and the spring and the bearing are sequentially sleeved between the movable sleeve and the mandrel; the vernier type thread depth gauge detection tool also comprises a locking mechanism used for locking the movable sleeve; the movable sleeve is provided with main scale scales along the axial direction, the gauge body is provided with a visual window along the axial direction, and vernier scales are arranged on the edge of the visual window and used for reading the measured thread depth. The utility model provides a pair of vernier formula screw thread depth gauge examines utensil simple structure, it is very convenient to install and use, can directly obtain the measuring result, and work efficiency is high, and measurement accuracy is high, can be applicable to the measurement of various degree of depth, different grade type screw hole.
Description
Technical Field
The utility model relates to a measuring tool technical field, in particular to vernier type screw thread depth gauge examines utensil.
Background
Along with the rapid development of the mechanical manufacturing industry of China to the high accuracy high efficiency direction, the accuracy and the improvement of efficiency of screw hole depth detection in machining and other fields, it is very inconvenient when field management according to traditional method with touch or step to measure the screw depth (the different degree of depth needs different gauges to detect, and the detection mode of scale form), the operator is easy puzzled, and can not obtain specific depth data, can only roughly judge whether the screw depth is qualified, produce the error easily in the vision, lead to judging inaccurate, the precision is poor, can't guarantee product quality, and influence the result of use, can't satisfy enterprise development.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utensil is examined to vernier formula screw thread depth gauge to when solving and using traditional touch or the method of step to measure the screw thread depth, field management is very inconvenient, and the operator produces the puzzlement easily, can not obtain specific degree of depth data moreover, can only judge roughly whether qualified the screw thread depth, produces the error easily in the vision, leads to judging inaccurate, the precision is poor, can't guarantee product quality's problem.
In order to solve the technical problem, the utility model provides a vernier type thread depth gauge detection tool, which comprises a gauge body, a mandrel, a through-end thread measurement head and a dead-end thread measurement head, wherein the vernier type thread depth gauge detection tool further comprises a movable sleeve, a spring and a bearing, the movable sleeve is movably sleeved between the gauge body and the mandrel, the spring and the bearing are sequentially sleeved between the movable sleeve and the mandrel, and the bearing is tightly sleeved in the movable sleeve;
the vernier type thread depth gauge detection tool also comprises a locking mechanism which is used for locking the movable sleeve to prevent the movable sleeve from moving along the axial direction of the gauge body; the movable sleeve is provided with main scale scales along the axial direction, the gauge body is provided with a visual window along the axial direction, and vernier scales are arranged on the edge of the visual window and used for reading the measured thread depth.
Optionally, the locking mechanism includes:
a lock holder fixed to an outer wall of the gauge body;
the positioning sleeve is arranged in the gauge body and is positioned between the gauge body and the movable sleeve;
the locking screw is connected with the lock seat through threads;
the outer surface of the movable sleeve is provided with a sliding groove along the axial direction, the size of the sliding groove is matched with that of the positioning sleeve, and the positioning sleeve can slide in the sliding groove of the movable sleeve;
the top end of the locking screw penetrates through the lock seat, the gauge body and the positioning sleeve in sequence and extends into the sliding groove of the movable sleeve.
Optionally, the top of the locking screw is further fixedly connected with a pressing block.
Optionally, a bearing retainer ring is further tightly sleeved inside the movable sleeve, and the bearing retainer ring is located at one end, far away from the spring, of the bearing and used for blocking the bearing and preventing the bearing from sliding out.
Optionally, one end of the movable sleeve, which is close to the through-end thread measuring head, is detachably connected with a reference check ring through a thread.
Optionally, a rotating nut is fixedly connected to one end of the gauge body, which is close to the end-stop thread measuring head, the inner diameter of the rotating nut is smaller than that of the gauge body, and one end of the core shaft penetrates through the rotating nut and is fixedly connected with the end-stop thread measuring head.
Optionally, a shaft shoulder is arranged at a position of the mandrel close to the rotating nut, and the diameter of the shaft shoulder is larger than the inner diameters of the rotating nut, the movable sleeve and the spring.
Optionally, the outer surface of the rotating nut is provided with knurls, so that the rotating nut is convenient to rotate.
Optionally, the through-end thread measuring head is connected to one end of the mandrel through a taper thread, and the end-stop thread measuring head is sleeved in the mandrel and is locked and fixed through a screw.
The utility model provides a vernier type screw thread depth gauge checking fixture, including the gauge body, dabber, lead to end screw thread gauge head and only end screw thread gauge head, vernier type screw thread depth gauge checking fixture still includes movable sleeve, spring and bearing, movable sleeve is established between the gauge body and the dabber, the spring with the bearing is established between movable sleeve and the dabber in proper order, and the bearing closely overlaps and is established in the movable sleeve; the vernier type thread depth gauge detection tool also comprises a locking mechanism which is used for locking the movable sleeve to prevent the movable sleeve from moving along the axial direction of the gauge body; the movable sleeve is provided with main scale scales along the axial direction, the gauge body is provided with a visual window along the axial direction, and vernier scales are arranged on the edge of the visual window and used for reading the measured thread depth. The vernier type thread depth gauge is simple in structure, very convenient to install and use, rapid and accurate in measurement, capable of directly obtaining a measurement result, high in working efficiency and high in measurement precision, effectively solves the problem that the measurement precision of an original thread is poor, avoids the influence of errors generated by human factors on product quality, can be suitable for measurement of different threaded holes with different depths, and is remarkable in economic and social benefits.
Drawings
Fig. 1 is a cross-sectional view of a vernier type gauge for measuring depth of thread provided by the present invention;
fig. 2 is a schematic overall structure diagram of a vernier type gauge for measuring depth of thread provided by the present invention;
fig. 3 is the utility model provides a structure schematic diagram of vernier formula screw depth gauge examines a cross section.
Detailed Description
The vernier type gauge for measuring the depth of thread according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The utility model provides a vernier type gauge for measuring thread depth, which has the structure as shown in figure 1 and figure 2. The vernier type thread depth gauge comprises a gauge body 1, a core shaft 2, a through-end thread measuring head 3 and a dead-end thread measuring head 4, and further comprises a movable sleeve 5, a spring 6 and a bearing 7, wherein the movable sleeve 5 is movably sleeved between the gauge body 1 and the core shaft 2, the spring 6 and the bearing 7 are sequentially sleeved between the movable sleeve 5 and the core shaft 2, and the bearing 7 is tightly sleeved in the movable sleeve 5; the bearing 7 can support the movable sleeve 5 to move axially, reduce the friction coefficient in the movement process of the movable sleeve and ensure the rotation precision of the movable sleeve, and preferably, the bearing 7 is a precision miniature guide pillar ball bearing. The appearance structure of the gauge body 1 adopts a combination form of a cylinder and a square body, round and square corners adopt streamline transition, and the whole gauge body is streamline, so that the gauge body is convenient for a user to operate; the shell of the gauge body 1 is made of aluminum alloy, is light and soft, is internally made of steel quenching materials, and is high in strength and long in service life. The mandrel 2 is made of steel piece quenching materials, is high in strength and long in service life, and the through-end thread measuring head 3 and the end-stop thread measuring head 4 are made of steel piece quenching materials, are high in strength and are long in service life.
The vernier type thread depth gauge detection tool further comprises a locking mechanism 8, and the locking mechanism is used for locking the movable sleeve 5 to prevent the movable sleeve from moving along the axial direction of the gauge body 1; the movable sleeve 5 is provided with main scale scales (not shown in the figure) along the axial direction, the gauge body 1 is provided with a visual window 9 along the axial direction, the scale value of the main scale scales can be read through the visual window 9, and the edge of the visual window 9 is provided with vernier scales (not shown in the figure) for reading the measured thread depth. The main scale and the vernier scale are scribed by adopting laser digital codes, the scribing accuracy is high, and the scale value (resolution ratio) of each grid is 0.05 mm.
Referring to fig. 3, the locking mechanism 8 includes a lock holder 80, a positioning sleeve 81 and a locking screw 82, and the lock holder 80 is fixed on the outer wall of the gauge body 1; the positioning sleeve 81 is provided in the gauge body 1 between the gauge body 1 and the movable sleeve 5; the locking screw 82 is in threaded connection with the lock seat 80; a sliding groove is formed in the outer surface of the movable sleeve 5 along the axial direction, the size of the sliding groove is matched with that of the positioning sleeve 81, and the positioning sleeve 81 can slide in the sliding groove of the movable sleeve 5; the top end of the locking screw 82 sequentially penetrates through the lock seat 80, the gauge body 1 and the positioning sleeve 81 and extends into the sliding groove of the movable sleeve 5. Preferably, the lock seat 80 and the positioning sleeve 81 are made of steel quenching materials, so that the movable sleeve 5 is convenient to lock and position.
The top of the locking screw 82 is also fixedly connected with a pressing block 83, so that the locking screw 82 is prevented from damaging the sliding groove of the movable sleeve 5, the friction force between the locking screw and the sliding groove can be increased, and the locking effect is enhanced. Preferably, the briquette 83 is made of nylon.
The inside of movable sleeve 5 still closely overlaps and is equipped with retaining ring 11, retaining ring 11 is located bearing 7 keeps away from the one end of spring 6 is used for blockking bearing 7 prevents bearing 7 roll-off.
One end of the movable sleeve 5, which is close to the through-end thread measuring head 3, is detachably connected with a reference check ring 12 through threads. Through changing benchmark retaining ring 12 with lead to end screw thread gauge head 3 can detect the screw hole degree of depth and smooth hole and the step face degree of depth of different grade type, and application range is wide. Preferably, the reference retainer ring 12 is coaxially installed at one end of the movable sleeve 5 by a fine thread, and the reference retainer ring 12 is made of steel quenching materials, so that the strength is high and the service life is long.
One end of the gauge body 1, which is close to the end-stop thread measuring head 4, is fixedly connected with a rotating nut 13, the inner diameter of the rotating nut 13 is smaller than that of the gauge body 1, and one end of the core shaft 2 penetrates through the rotating nut 13 and is fixedly connected with the end-stop thread measuring head 4. Preferably, the swivel nut 13 is made of an aluminum alloy material, and is lightweight and flexible. The outer surface of the rotating nut 13 is provided with knurls, which is beneficial to rotating.
A shaft shoulder 20 is arranged on the position, close to the rotating nut 13, of the mandrel 2, and the diameter of the shaft shoulder 20 is larger than the inner diameters of the rotating nut 13, the movable sleeve 5 and the spring 6.
The through-end thread measuring head 3 is connected to one end of the mandrel 2 through taper threads, and the end-stop thread measuring head 4 is sleeved in the mandrel 2 and locked and fixed through a screw 14. Preferably, the through-end thread measuring head 3 is installed at one end of the mandrel 2 through a taper thread with the standard ratio of 1:50, so that the centering is accurate, the self-locking function is realized, the through-end thread measuring head 3 is prevented from falling off due to rotation, the through-end thread measuring head 3 is convenient to replace and disassemble, and thread heads with different specifications can be replaced for detection.
The working principle is as follows:
when the gauge is used, the movable sleeve 5 is firstly pressed into the gauge body 1, one end of the movable sleeve 5 is abutted against the shaft shoulder 20 of the mandrel 2, the locking screw 82 is screwed down, the pressing block 83 is pressed tightly against the sliding groove of the movable sleeve 5, the movable sleeve 5 is axially positioned, then the gauge body 1 is held by the left hand, the rotating nut 13 is rotated by the right hand, the through-end thread measuring head 3 is screwed into the bottom of a measured threaded hole, the locking screw 82 is loosened, the movable sleeve 5 is slowly released, the reference check ring 12 is abutted against the surface of a workpiece, the locking screw 82 is screwed down, after the gauge body 1 is reversely rotated, the through-end thread measuring head 3 is separated from the measured threaded hole, the readings of the main scale and the vernier scale are read, and the depth value of the measured threaded hole is obtained.
The utility model discloses simple structure, it is very convenient to install and use, measures fast accurately, can directly obtain measuring result, and work efficiency is high, and measurement accuracy is high, has effectively overcome the poor problem of former screw thread measurement accuracy, avoids the produced error of human factor to influence product quality, can be applicable to various different degree of depth, the measurement of different grade type screw hole, and economy and social are showing.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (9)
1. A vernier type thread depth gauge detection tool comprises a gauge body (1), a mandrel (2), a through-end thread measurement head (3) and a stop-end thread measurement head (4), and is characterized by further comprising a movable sleeve (5), a spring (6) and a bearing (7), wherein the movable sleeve (5) is movably sleeved between the gauge body (1) and the mandrel (2), the spring (6) and the bearing (7) are sequentially sleeved between the movable sleeve (5) and the mandrel (2), and the bearing (7) is tightly sleeved in the movable sleeve (5);
the vernier type thread depth gauge detection tool further comprises a locking mechanism (8) for locking the movable sleeve (5) to prevent the movable sleeve from moving along the axial direction of the gauge body (1); the ruler is characterized in that the movable sleeve (5) is provided with main ruler scales along the axial direction, the ruler body (1) is provided with a visual window (9) along the axial direction, and vernier scales are arranged on the edge of the visual window and used for reading the measured thread depth.
2. A vernier screw depth gauge tool according to claim 1, wherein the locking mechanism (8) comprises:
a lock holder (80) fixed to the outer wall of the gauge body (1);
a positioning sleeve (81) which is arranged in the gauge body (1) and is positioned between the gauge body (1) and the movable sleeve (5);
the locking screw (82) is connected with the lock seat (80) through threads;
the outer surface of the movable sleeve (5) is provided with a sliding groove along the axial direction, the size of the sliding groove is matched with that of the positioning sleeve (81), and the positioning sleeve (81) can slide in the sliding groove of the movable sleeve (5);
the top end of the locking screw (82) sequentially penetrates through the lock seat (80), the gauge body (1) and the positioning sleeve (81) and extends into the sliding groove of the movable sleeve (5).
3. A vernier tool for measuring the depth of thread according to claim 2, wherein the top of the locking screw (82) is also fixedly connected with a pressing block (83).
4. A vernier screw thread depth gauge tool according to claim 1, wherein a retainer ring (11) is tightly sleeved inside the movable sleeve (5), and the retainer ring (11) is located at one end of the bearing (7) far away from the spring (6) and is used for blocking the bearing (7) and preventing the bearing (7) from sliding out.
5. A vernier screw depth gauge according to claim 1, wherein a reference collar (12) is detachably connected to one end of the movable sleeve (5) close to the through-end screw probe (3) by a screw thread.
6. A vernier screw depth gauge according to claim 1, wherein a rotary nut (13) is fixedly connected to an end of the gauge body (1) adjacent to the end-stop screw probe (4), the inner diameter of the rotary nut (13) is smaller than the inner diameter of the gauge body (1), and an end of the spindle (2) passes through the rotary nut (13) and is fixedly connected to the end-stop screw probe (4).
7. A vernier screw depth gauge according to claim 6, wherein the spindle (2) is provided with a shoulder (20) near the swivel nut (13), the diameter of the shoulder (20) being larger than the inner diameter of the swivel nut (13), the movable sleeve (5) and the spring (6).
8. A vernier screw depth gauge tool according to claim 6, wherein the outer surface of the swivel nut (13) is knurled to facilitate screwing.
9. A vernier screw depth gauge according to claim 1, wherein the through-end screw probe (3) is connected to one end of the spindle (2) by a taper screw, and the end-stop screw probe (4) is sleeved in the spindle (2) and is locked and fixed by a screw (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020688661.9U CN211626296U (en) | 2020-04-29 | 2020-04-29 | Vernier type thread depth gauge checking fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020688661.9U CN211626296U (en) | 2020-04-29 | 2020-04-29 | Vernier type thread depth gauge checking fixture |
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| CN211626296U true CN211626296U (en) | 2020-10-02 |
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| CN202020688661.9U Active CN211626296U (en) | 2020-04-29 | 2020-04-29 | Vernier type thread depth gauge checking fixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061410A (en) * | 2021-11-10 | 2022-02-18 | 中国兵器工业集团航空弹药研究院有限公司 | Measuring tool for detecting depth of inner hole of cylindrical part |
-
2020
- 2020-04-29 CN CN202020688661.9U patent/CN211626296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061410A (en) * | 2021-11-10 | 2022-02-18 | 中国兵器工业集团航空弹药研究院有限公司 | Measuring tool for detecting depth of inner hole of cylindrical part |
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