CN208606685U

CN208606685U - A kind of threaded hole thread pitch measuring

Info

Publication number: CN208606685U
Application number: CN201821139654.2U
Authority: CN
Inventors: 洪小龙; 尹振全; 顾超; 杨桂跞
Original assignee: Suzhou Wen Sam Mu Pml Precision Mechanism Ltd
Current assignee: Suzhou Wen Sam Mu Pml Precision Mechanism Ltd
Priority date: 2018-07-18
Filing date: 2018-07-18
Publication date: 2019-03-15
Anticipated expiration: 2028-07-18

Abstract

The utility model discloses a kind of threaded hole thread pitch measurings, including test bar and the signal processor being connect with test bar, the extensible member with scissor mechanical structure is equipped in test bar, the part that extensible member stretches out the test bar can be engaged with threaded hole thread to be measured, be equipped at occlusal end for transmitting occlusion signal to the pressure sensor of the signal processor；Wherein, the scissor mechanical structure is connected with each other by shaft；The push rod that can be moved axially along test bar is connected on extensible member, when push rod does not move, extensible member is contracted in test bar；When push rod is mobile, a part of extensible member stretches out test bar.The utility model is engaged it with the crest up and down of threaded hole thread to be measured, the distance of stretch out and draw back of extensible member scissor mechanical structure is the thread spacing of threaded hole at this time by the distance of stretch out and draw back of adjusting extensible member scissor mechanical structure.

Description

A kind of threaded hole thread pitch measuring

Technical field

The utility model relates to piece test technical fields, and in particular to a kind of threaded hole thread pitch measuring.

Background technique

Spiral marking connection is one of most common mechanical connecting mode in machine-building, and because it is coupled, reliable, structure is simple, system It makes convenient and is widely used.Regular screw threads standard GB/T T197-2003 internal threads define two kinds of basic deviations of G, H and 3 ~9 grades of grades of tolerance select according to requirements for designer.In practical application, some crucial and important components are coupled, Not only internal threads precision has strict demand (such as 6G, 7H) its blind screwhole, but also also has to the distance between threaded hole thread Tolerance.For example, distance is structural member according to structural member spy between the approximately the same plane upper screwed hole thread of structural member inner cavity Point, a kind of inscribed threaded form designed, be structural member connect with inner part indispensable component part (be with it is interior Unique fastening means that portion's structure is connected).To the inspection during manufacture of these blind screwholes, not only need whether to examine screw thread hole precision It is qualified, it is also necessary to whether qualified to detect the distance between threaded hole thread.

Summary of the invention

The purpose of the utility model is to overcome problem above of the existing technology, provide a kind of easy to operate, quasi- The high threaded hole thread pitch measuring of true property.

In order to achieve the above objectives, the threaded hole thread pitch measuring of the utility model include test bar and with the inspection The signal processor of stick connection is surveyed,

The extensible member with scissor mechanical structure is equipped in the test bar, the extensible member stretches out the portion of the test bar Dividing can be engaged with threaded hole thread to be measured, be equipped at occlusal end for transmitting occlusion signal to the contact of the signal processor Sensor；Wherein, the scissor mechanical structure is connected with each other by shaft.

The push rod that can be moved axially along the test bar is connected on the extensible member, it is described when the push rod does not move Extensible member is contracted in the test bar；When the push rod is mobile, a part of the extensible member stretches out the test bar.

Further, one end of the push rod is connect with the scissor mechanical structure, the other end be set to the test bar In driving motor connection；The driving motor and the signal processing mechatronics.

Further, the contact sensor is pressure sensor.

Further, the inner wall of the test bar is equipped with fixed plate, and one end of the extensible member and the fixed plate are logical Cross shaft connection.

Further, the signal processor is equipped with the clamping device for fixing the test bar, the clamping dress Setting can move up and down.

Further, the test bar is equipped with level meter.

According to the above aspect of the present invention, the threaded hole thread pitch measuring of the utility model has at least the following advantages:

The utility model adjusts the distance of stretch out and draw back of extensible member scissor mechanical structure by push rod, makes itself and threaded hole spiral shell to be measured The crest up and down of tooth is engaged, and the distance of stretch out and draw back of extensible member scissor mechanical structure is the thread spacing of threaded hole at this time.

Detailed description of the invention

In order to illustrate more clearly of the technical solution in the utility model embodiment technology, embodiment technology will be retouched below Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments for those of ordinary skill in the art without creative efforts, can also basis These attached drawings obtain other attached drawings.

Fig. 1 is the structural schematic diagram of the preferred embodiment in the utility model.

Each symbol is expressed as follows in figure:

1, test bar, 2, driving motor, 3, push rod, 4, fixed plate,

5, fixed plate shaft, 6, extensible member, 7, push rod connecting pin, 8, threaded hole to be measured.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment

As shown in Figure 1, the threaded hole thread pitch measuring of the present embodiment includes test bar 1 and connect with test bar 1 Signal processor, the extensible member 6 with scissor mechanical structure is equipped in test bar 1, extensible member 6 stretches out the part of test bar 1 It can be engaged, be equipped at occlusal end for transmitting occlusion signal to the contact of the signal processor with 8 thread of threaded hole to be measured Sensor；Wherein, scissor mechanical structure is connected with each other by shaft, and contact sensor is pressure sensor；It is connected on extensible member 6 There is the push rod 3 that can be moved axially along test bar 1, when push rod 3 does not move, extensible member 6 is contracted in test bar 1；Push rod 3 is mobile When, a part of extensible member 6 stretches out test bar 1.

One end 7 of push rod 3 is connect with scissor mechanical structure, and the other end is connect with the driving motor being set in test bar 1；Inspection The inner wall for surveying stick 1 is equipped with fixed plate 4, and one end of extensible member 6 is connect with fixed plate 4 by shaft 5.

Signal processor is equipped with clamping device for fixing the test bar, the clamping device can on move down It is dynamic.

Preferably, the test bar is equipped with level meter.

Preferably, the scissor mechanical structure is prepared by organic plastics.

When the utility model is used, typing push rod moving distance and extensible member scissor are mechanical first in signal processor The mapping relations of mechanism distance of stretch out and draw back and the pressure threshold of pressure sensor, the pressure threshold are less than regular screw threads on the market The weight of workpiece.It will test stick 1 by level meter to be adjusted to horizontal and fix by clamping device, enabling signal processor, drive Dynamic motor 2 pushes push rod 3 along the axial movement of test bar 1, protrudes into one end of extensible member 6 in threaded hole 8 to be measured, adjusts push rod 3 moving distance and then the distance of stretch out and draw back for adjusting 6 scissor mechanical structure of extensible member, by the pressure sensor for detecting occlusal end Pressure signal is engaged it with bearing down on one on threaded hole 8 to be measured, the case where the pressure value detected is less than pressure threshold Under, the moving distance of push rod 3 at this time is recorded, and be passed to signal processor, extensible member 6 is calculated according to the moving distance and is cut The distance of stretch out and draw back of mechanical structure is pitched, which is threaded hole thread spacing to be measured.Weight when measuring lower screw thread thread spacing Multiple above-mentioned steps, which is not described herein again.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims

1. a kind of threaded hole thread pitch measuring, including test bar and the signal processor being connect with the test bar, It is characterized in that:

The extensible member with scissor mechanical structure is equipped in the test bar, the extensible member stretches out the part energy of the test bar It is engaged, is equipped at occlusal end for transmitting occlusion signal to the sensing contact of the signal processor with threaded hole thread to be measured Device；Wherein, the scissor mechanical structure is connected with each other by shaft；

The push rod that can be moved axially along the test bar is connected on the extensible member, it is described flexible when the push rod does not move Part is contracted in the test bar；When the push rod is mobile, a part of the extensible member stretches out the test bar.

2. threaded hole thread pitch measuring according to claim 1, it is characterised in that: one end of the push rod and institute The connection of scissor mechanical structure is stated, the other end is connect with the driving motor being set in the test bar；The driving motor with it is described Signal processing mechatronics.

3. threaded hole thread pitch measuring according to claim 1, it is characterised in that: the contact sensor is pressure Force snesor.

4. threaded hole thread pitch measuring according to claim 1, it is characterised in that: on the inner wall of the test bar Equipped with fixed plate, one end of the extensible member is connect with the fixed plate by shaft.

5. threaded hole thread pitch measuring according to claim 1, it is characterised in that: set on the signal processor There is the clamping device for fixing the test bar, the clamping device can move up and down.

6. threaded hole thread pitch measuring according to claim 1, it is characterised in that: the test bar is equipped with water Level.