CN211696200U

CN211696200U - Thread depth gauge

Info

Publication number: CN211696200U
Application number: CN202020221908.6U
Authority: CN
Inventors: 魏雪姿; 付强; 杨国华
Original assignee: Shaanxi Fast Gear Co Ltd
Current assignee: Shaanxi Fast Gear Co Ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-10-16
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses a thread depth gauge, which comprises a thread no-go gauge, a handle, a thread go-gauge and a slide block, wherein the thread no-go gauge and the thread go-gauge are coaxially arranged at two ends of the handle; the sliding block is sequentially provided with a stabilizing section, a measuring section and a positioning section along the axial direction, the stabilizing section is used for stabilizing the sliding block when the sliding block slides on the outer wall of the thread go gauge, and the measuring section displays the depth value of the thread of the workpiece; the positioning section is used for positioning the thread depth gauge on the threads of the workpiece; the measuring section is provided with a scale surface parallel to the central axis of the thread go gauge, and on the cross section of the thread depth gauge, the radian theta formed by rays emitted from the central point of the thread go gauge to the circumference of the contact of the thread go gauge and the scale surface is greater than 0 degrees and less than or equal to 180 degrees. The utility model discloses can be simultaneously, quick, internal thread size and thread depth degree for the high accuracy measurement steel wire swivel nut, practice thrift the cost, promote detection efficiency.

Description

Thread depth gauge

Technical Field

The utility model relates to an utensil technical field is examined to the measuring tool, concretely relates to screw thread depth gauge.

Background

At present, the thread detection and the depth detection of the internal thread for the steel wire screw sleeve are respectively detected, and a depth gauge is matched with a thread plug gauge to detect the thread depth of parts such as a shell, a gear and the like in a common method at present. This detection method has the following 3 disadvantages: (1) the operation is troublesome and the measurement is inconvenient; (2) the measurement result cannot be directly obtained, and calculation is needed; (3) the shank of the thread plug gauge is often larger than the thread portion, and when the thread is deeper, the plug gauge cannot be screwed to the bottom of the thread, and the method cannot measure the depth. In addition, the size of the thread of the internal thread of the wire thread insert is larger than that of the common thread, and the HB4273 standard can be inquired by the design of the internal thread plug gauge for the wire thread insert.

Disclosure of Invention

An object of the utility model is to provide a screw thread depth gauge for solve the inconvenient and low problem of security of operation that the pressure head frock exists among the prior art.

In order to realize the task, the utility model discloses a following technical scheme:

a thread depth gauge is used for detecting the thread size and the thread depth of an internal thread for a steel wire thread insert and comprises a thread no-go gauge, a handle, a thread go-gauge and a slide block, wherein the thread no-go gauge and the thread go-gauge are coaxially arranged at two ends of the handle;

the sliding block is sequentially provided with a stabilizing section, a measuring section and a positioning section along the axial direction, the stabilizing section is used for stabilizing the sliding block when the sliding block slides on the outer wall of the thread go gauge, and the measuring section displays the depth value of the thread of the workpiece; the positioning section is used for positioning the thread depth gauge on the threads of the workpiece;

the measuring section is provided with a scale surface parallel to the central axis of the thread go gauge, and on the cross section of the thread depth gauge, the radian theta formed by rays emitted from the central point of the thread go gauge to the circumference of the contact of the thread go gauge and the scale surface is greater than 0 degrees and less than or equal to 180 degrees, such as 60 degrees, 90 degrees, 120 degrees or 180 degrees.

Furthermore, the bottom of the thread go gauge is provided with a through end thread which is embedded in the positioning section, the bottom of the through end thread and the bottom of the positioning section are positioned on the same plane, and the plane is vertical to the central shaft of the thread go gauge.

Further, the screw thread go to the rule be in the slider inside set up the cylindrical volume post of slidable, volume post outer wall set up the round positioning line, the positioning line under screw thread depth gage reset state, with the scale mark parallel and level on the scale face 0.

Furthermore, the handle is internally provided with a first internal thread and a second internal thread which can be meshed with the thread no-go gauge and the thread go-gauge, and the thread no-go gauge and the thread go-gauge are respectively connected with the handle through the first internal thread and the second internal thread.

Furthermore, the thread depth gauge is also provided with a first screw and a second screw, and the first screw is used for screwing the thread no-go gauge from outside to inside in the radial direction of the handle; the second screw is the same as the first screw in the arrangement direction, and the thread go gauge is screwed up from outside to inside.

The thread stop gauge is characterized in that a stop end thread is arranged at the top of the thread stop gauge along the axial direction, the stop end thread and a through end thread jointly detect the size of the workpiece thread, and if the through end thread can be screwed into the workpiece thread and the stop end thread cannot be screwed into the workpiece thread, the size of the workpiece thread is qualified.

Further, the firm section be equipped with the first firm face and the second firm face that are on a parallel with each other on screw thread lead to rule center pin, the measurement section be equipped with the holding surface that is on a parallel with screw thread lead to rule center pin, the holding surface with the scale face parallel, holding surface and first firm face and second firm face play the stable function of slider when the screw thread leads to the rule to slide jointly.

Furthermore, the first stabilizing surface and the supporting surface are positioned on the same plane, and the distance between the scale surface and the central axis of the thread go-gauge is smaller than the distance between the second stabilizing surface and the central axis of the thread go-gauge.

Compared with the prior art, the utility model following technological effect has:

the utility model provides a detection problem of screw thread and degree of depth can be solved to internal thread depth gauge for the wire thread, can be simultaneously, quick, high accuracy measure wire thread for the swivel nut internal thread size and the thread depth, and reducible kind of examining is practiced thrift the cost, promotes detection efficiency.

Drawings

Fig. 1 is a schematic structural view of the thread depth gauge of the present invention;

FIG. 2 is a cross-sectional view of the A-A side of the slider of the thread depth gauge of the present invention;

FIG. 3 is a cross-sectional view of the B-B side of the slider of the thread depth gauge of the present invention;

FIG. 4 is a side view of the slider of the thread depth gauge of the present invention;

the reference numbers in the figures represent: 1. a thread no-go gauge; 11. end stop threads; 12. a first screw; 2. a handle; 21. a first internal thread; 22. a second internal thread; 3. a thread go gauge; 31. a second screw; 32. measuring the column; 33. through end threads; 4. a slider; 41. a stabilizing section; 41-1, a first stabilizing surface; 41-2, a second stabilizing surface; 42. a measuring section; 42-1, a support surface; 42-2, a scale surface; 43. and (6) positioning the section.

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 efforts belong to the protection scope of the present invention.

It should be noted that, when the present invention is described in terms of orientation, the terms "upper", "lower", "top", "bottom", and the like, are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and "inner" and "outer" refer to the outer portion of the inner core of the corresponding component profile, and the above terms should not be construed as limiting the present invention. If the particular gesture changes, the directional indication changes accordingly. In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically limited otherwise. In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

In order to detect the size and the thread depth dimension of the internal thread for the wire thread insert more quickly and directly, a proposal is provided: combine steel wire thread insert with internal thread plug gauge and scale structure, design steel wire thread insert and examine utensil with the internal thread degree of depth: the plug gauge can measure the screw thread, and the scale part can directly read and measure the depth.

Example 1

The utility model discloses a thread depth gauge for detect the internal thread size and the thread depth for the steel wire swivel nut, combine steel wire swivel nut with internal thread plug gauge and scale structure, design steel wire swivel nut and examine utensil with the internal thread depth: the plug gauge can measure the screw thread, and the scale part can directly read and measure the depth.

As shown in fig. 1, in the present embodiment, the thread gauge comprises a thread no-go gauge 1, a handle 2, a thread go gauge 3 and a slide block 4, wherein the thread no-go gauge 1 and the thread go gauge 3 are coaxially arranged at two ends of the handle 2, so that the thread size can be measured, the slide block 4 is sleeved outside the bottom of the thread go gauge 3, the slide block 4 and the thread go gauge 3 are coaxially arranged, and the slide block 4 can slide on the thread go gauge 3;

the sliding block 4 is sequentially provided with a stabilizing section 41, a measuring section 42 and a positioning section 43 along the axial direction, the stabilizing section 41 is used for stabilizing the sliding block 4 when the sliding block slides on the outer wall of the thread go gauge 3, and the measuring section 42 displays the depth value of the thread of the workpiece; the positioning section 43 is used for positioning the thread depth gauge on the thread of the workpiece; the depth can be directly read and measured.

The measuring section 42 is provided with a scale surface 42-2 parallel to the central axis of the thread gauge 3, and on the cross section of the thread depth gauge, the radian theta formed by rays emitted from the central point of the thread gauge 3 to the circumference of the contact between the thread gauge 3 and the scale surface 42-2 is greater than 0 degrees and less than or equal to 180 degrees, for example, 60 degrees, 90 degrees, 120 degrees or 180 degrees, as shown in fig. 3.

Specifically, the bottom of the thread go gauge 3 is provided with a through end thread 33, the through end thread 33 is embedded in the positioning section 43, the bottom of the through end thread 33 and the bottom of the positioning section 43 are on the same plane, the plane is perpendicular to the central axis of the thread go gauge 3, and the plane is in a resetting state of the thread depth gauge.

The thread go gauge 3 is characterized in that a slidable cylindrical measuring column 32 is arranged inside the sliding block 4, the outer wall of the measuring column 32 is provided with a circle of positioning lines, and the positioning lines are flush with the 0 scale mark on the scale surface 42-2 in the reset state of the thread depth gauge.

The first internal thread 21 and the second internal thread 22 which can be meshed with the thread no-go gauge 1 and the thread go-no gauge 3 are arranged inside the handle 2, the thread no-go gauge 1 and the thread go-no gauge 3 are respectively connected with the handle 2 through the first internal thread 21 and the second internal thread 22, the outer wall of the handle 2 is provided with a grid shape, so that the friction resistance is increased, an operator can hold the handle by hand and cannot easily slide off, in addition, the thread no-go gauge 1 and the thread go-no gauge 3 can be replaced by the mode, the coaxial arrangement can avoid eccentric wear and clamping phenomena, the structure is reasonable, the stability is good, and the stable measurement of various threads with various depths can be realized; the defects that internal parts are abraded due to the fact that the mandrel, the thread go gauge 3 and the sliding block 4 are not coaxial, measuring accuracy is poor and service life is short are overcome.

Furthermore, the thread depth gauge is also provided with a first screw 12 and a second screw 31, and the first screw 12 screws the thread no-go gauge 1 from outside to inside in the radial direction of the handle 2; second screw 31 is the same with the direction that sets up of first screw 12, screws up screw thread go to rule 3 by outer to interior, and this kind of mode of setting not only makes screw no-go gage 1 and screw thread go to rule 3 and handle 2 and is in coaxial position, and when using handle 2 to grip or twist reverse moreover, better drive screw no-go gage 1 and screw thread go to rule 3, prevent that it from droing for measurement accuracy promotes.

The top of the thread no-go gauge 1 in the axial direction is provided with a no-go end thread 11, the no-go end thread 11 and a through end thread 33 jointly detect the size of the workpiece thread, and if the through end thread 33 can be screwed into the workpiece thread and the no-go end thread 11 cannot be screwed into the workpiece thread, the size of the workpiece thread is qualified.

In order to further improve the operability and accuracy of the thread depth gauge, as shown in fig. 4, the stabilizing section 41 is provided with a first stabilizing surface 41-1 and a second stabilizing surface 41-2 which are parallel to the central axis of the thread go-gauge 3, the measuring section 42 is provided with a supporting surface 42-1 which is parallel to the central axis of the thread go-gauge 3, the supporting surface 42-1 is parallel to the scale surface 42-2, and the supporting surface 42-1, the first stabilizing surface 41-1 and the second stabilizing surface 41-2 together play a role in stabilizing the sliding block 4 when sliding on the thread go-gauge 3.

The first stabilizing surface 41-1 and the supporting surface 42-1 are positioned on the same plane, the distance between the scale surface 42-2 and the central axis of the thread go gauge 3 is smaller than the distance between the second stabilizing surface 41-2 and the central axis of the thread go gauge 3, so that the thread go gauge 3 is exposed and is easy to observe by human eyes, if the radian theta formed by rays emitted from the central point of the thread go gauge 3 to the circumference of the contact between the thread go gauge 3 and the scale surface 42-2 on the cross section of the thread go gauge is 0 degree, an operator cannot observe a circle of positioning lines on the outer wall of the measuring column 32 of the thread go gauge 3, at the moment, as a deformation of the embodiment, the scale surface 42-2 of the sliding block 4 can be arranged by using a transparent material, so that the observation of a circle of positioning lines on the outer wall of the measuring column 32 and the scale lines on the scale surface 42-2 can be realized, and the screwing depth of the thread go, i.e. the thread depth of the workpiece thread.

Additionally, the utility model discloses a slider 4 of screw thread depth gauge can use mould integrated into one piece, has that the quality is light, and outside is rust-resistant, functions such as difficult wearing and tearing. The whole cost is low. The measuring accuracy of the workpiece threads is ensured, meanwhile, the damage to the workpiece and/or the threads caused by the excessive use is avoided, and the use reliability is high.

To sum up, the utility model discloses a thread depth gauge's use measurement operation process as follows:

the thread depth gauge is placed on a thread of a workpiece, an operator holds the handle 2, the thread passing gauge can be rotated along with the rotation of the handle 2, the thread passing gauge 3 rotates towards the direction of the thread of the workpiece, at the moment, the sliding block 4 keeps the position still, the measuring column 32 of the thread passing gauge 3 moves towards the direction of the thread of the workpiece relative to the sliding block 4, the positioning line on the outer wall of the measuring column 32 also moves along with the thread passing gauge, after the thread passing gauge 3 detects the thread of the workpiece, the positioning line on the outer wall of the measuring column 32 generates displacement relative to the scale line on the scale surface 42-2 of the sliding block 4, at the moment, the thread depth of the thread of the workpiece is displayed on the scale surface 42-2, and the. When the resetting operation of the thread depth gauge is realized, the handle 2 is held by hand and is rotated reversely.

When the measurement of the thread size is realized, the stop end thread 11 and the through end thread 33 are respectively adopted to detect the workpiece thread, when the through end thread 33 can be screwed into the workpiece thread, the stop end thread 11 can not be screwed into the workpiece thread, and the workpiece thread size is qualified.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention; various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A thread depth gauge is used for detecting the thread size and the thread depth of an internal thread for a steel wire thread insert and is characterized by comprising a thread no-go gauge (1), a handle (2), a thread go-no gauge (3) and a sliding block (4), wherein the thread no-go gauge (1) and the thread go-no gauge (3) are coaxially arranged at two ends of the handle (2), the sliding block (4) is sleeved outside the bottom of the thread go-no gauge (3), the sliding block (4) and the thread go-no gauge (3) are coaxially arranged, and the sliding block (4) can slide on the thread go-no gauge (3);

the thread gauge is characterized in that the sliding block (4) is sequentially provided with a stabilizing section (41), a measuring section (42) and a positioning section (43) along the axial direction, the stabilizing section (41) is used for stabilizing the sliding block (4) when the outer wall of the thread gauge (3) slides, the measuring section (42) displays the depth value of the thread of a workpiece, and the positioning section (43) is used for positioning the thread depth gauge on the thread of the workpiece;

the measuring section (42) is provided with a scale surface (42-2) parallel to the central axis of the thread go gauge (3), and on the cross section of the thread depth gauge, the radian theta formed by rays emitted from the central point of the thread go gauge (3) to the circumference of the contact between the thread go gauge (3) and the scale surface (42-2) is greater than 0 degree and less than or equal to 180 degrees.

2. The thread depth gauge according to claim 1, characterized in that the bottom of the thread go gauge (3) is provided with a through end thread (33), the through end thread (33) is nested inside the positioning section (43), the bottom of the through end thread (33) and the bottom of the positioning section (43) are in the same plane, and the plane is perpendicular to the central axis of the thread go gauge (3).

3. The thread depth gauge according to claim 1, wherein the thread go gauge (3) is provided with a slidable cylindrical measuring column (32) inside the slider (4), and the outer wall of the measuring column (32) is provided with a circle of positioning lines which are flush with the 0 graduation line on the graduation surface (42-2) in the reset state of the thread depth gauge.

4. The thread depth gauge according to claim 2, characterized in that a first internal thread (21) and a second internal thread (22) which can be engaged with the thread stop gauge (1) and the thread go gauge (3) are arranged inside the handle (2), and the thread stop gauge (1) and the thread go gauge (3) are respectively connected with the handle (2) through the first internal thread (21) and the second internal thread (22).

5. The thread depth gauge according to claim 4, characterized in that it is further provided with a first screw (12) and a second screw (31), said first screw (12) screwing the thread depth gauge (1) from outside to inside in a radial direction of the handle (2); the second screw (31) and the first screw (12) are arranged in the same direction, and the thread go gauge (3) is screwed up from outside to inside.

6. The thread depth gauge according to claim 5, characterized in that the thread no-go gauge (1) is provided with a no-go thread (11) along the top in the axial direction, the no-go thread (11) and a through-go thread (33) jointly detect the size of the thread of the workpiece, and if the through-go thread (33) can be screwed into the thread of the workpiece and the no-go thread (11) cannot be screwed into the thread of the workpiece, the thread of the workpiece is qualified in size.

7. The thread depth gauge according to claim 1, characterized in that the stabilizing section (41) is provided with a first stabilizing surface (41-1) and a second stabilizing surface (41-2) which are parallel to each other with respect to the central axis of the thread go-gauge (3), the measuring section (42) is provided with a support surface (42-1) which is parallel to the central axis of the thread go-gauge (3), the support surface (42-1) is parallel to the scale surface (42-2), and the support surface (42-1), the first stabilizing surface (41-1) and the second stabilizing surface (41-2) together function as a stabilizing function when the slider (4) slides on the thread go-gauge (3).

8. Thread depth gauge according to claim 7, characterized in that said first anchoring surface (41-1) is coplanar with said support surface (42-1), and in that said graduated surface (42-2) is at a smaller distance from the central axis of the thread gauge (3) than the distance of the second anchoring surface (41-2) from the central axis of the thread gauge (3).