阅读说明：本技术 一种用于螺纹通止检测的浮动机构 (A relocation mechanism for screw thread leads to ends and detects ) 是由 仇荣平 谢威 于 2019-10-30 设计创作，主要内容包括：一种用于螺纹通止检测的浮动机构,包括：驱动轴、驱动联轴节、连接轴套、浮动轴、通止规、通止规转换套、下盖板,驱动联轴节与连接轴套、浮动轴间隙式固定,可用于消除轴平行偏移,橡胶圈的设置便于消除轴的倾斜偏移,平面轴承的设置保证在消除轴平行偏移的基础上实现无平移摩擦力,所述连接轴套、驱动联轴节围成空腔中弹簧的设计使倾斜后的结构复位。本发明设计的浮动机构结构简单,可同时消除轴的平行偏移、倾斜偏移,保证螺纹轴心线、通止规轴心线的同心度,提高螺纹检测的效果。(A float mechanism for thread make-and-break detection, comprising: the driving coupling is fixed with the connecting shaft sleeve and the floating shaft in a clearance mode and can be used for eliminating parallel shaft deviation, the rubber ring is arranged to facilitate the elimination of the inclined deviation of the shaft, the plane bearing is arranged to ensure that no translational friction force is realized on the basis of eliminating the parallel shaft deviation, and the design of the spring in the cavity formed by the surrounding of the connecting shaft sleeve and the driving coupling enables the inclined structure to reset. The floating mechanism designed by the invention has a simple structure, can simultaneously eliminate parallel offset and inclined offset of the shaft, ensures the concentricity of the axial lead of the thread and the axial lead of the go-no go gauge, and improves the thread detection effect.)

1. A float mechanism for thread make-and-break detection, comprising: the drive shaft, drive shaft coupling, connecting sleeve, floating shaft, logical no-go gage conversion cover, lower apron, logical no-go gage is fixed in logical no-go gage conversion cover, its characterized in that: the driving coupling is characterized in that an upper hexagonal flange and a lower hexagonal flange which are of an integral structure are respectively arranged at two end parts of the driving coupling, hexagonal holes are respectively arranged at the upper end of the connecting shaft sleeve and the upper end of the floating shaft, the driving coupling is sleeved inside the connecting shaft sleeve and is fixed in the hexagonal holes through the upper hexagonal flange to complete the fixed connection of the driving coupling and the connecting shaft sleeve, the lower end of the driving coupling is fixed in the hexagonal holes through the lower hexagonal flange to complete the fixed connection of the driving coupling and the floating shaft, the driving shaft is fixedly connected with the end face of the connecting shaft sleeve, the end face of the lower cover plate is fixedly screwed on the lower end face of the connecting shaft sleeve, the floating shaft penetrates through the lower cover plate, and the lower end part of the floating shaft.

2. The float mechanism for thread make and break detection as recited in claim 1, wherein: the hexagonal hole internal circle radius is greater than the radius of the upper hexagonal flange and the lower hexagonal flange internal circle, and the radius of the hexagonal hole internal circle is less than the radius of the upper hexagonal flange and the lower hexagonal flange external circle.

3. The float mechanism for thread make and break detection as recited in claim 1, wherein: the outer side of the hexagonal hole in the upper end of the floating shaft is sleeved with a first plane bearing, and a lower ball surface in the first plane bearing is in contact with an upper plate surface of the circular plate in the upper end of the floating shaft.

4. The float mechanism for thread make and break detection as recited in claim 1, wherein: the floating shaft is also sleeved and connected with a second plane bearing, and the upper ball surface of the second plane bearing is contacted with the lower plate surface of the circular ring plate at the upper end of the floating shaft.

5. The floating mechanism for thread make-and-break detection according to any one of claims 3 or 4, wherein: the first rubber ring retaining block is sleeved outside the driving coupling, a first rubber ring is arranged in a groove of the first rubber ring retaining block, the upper surface of the first rubber ring is in elastic contact with the lower end surface of the inner side of the connecting shaft sleeve, and the upper rolling surface of the first plane bearing is abutted against the first rubber ring retaining block.

6. The floating mechanism for thread make-and-break detection according to any one of claims 3 or 4, wherein: the floating shaft bearing further comprises a second rubber ring and a second rubber ring holding block, the first rubber ring holding block is sleeved outside the floating shaft, a second rubber ring is arranged in a groove of the second rubber ring holding block, the lower end face of the second rubber ring is in contact with the upper plate face of the lower cover plate, and the lower rolling surface of the second planar bearing is abutted to the second rubber ring holding block.

7. The float mechanism for thread make and break detection as recited in claim 1, wherein: the floating shaft is characterized by further comprising a V-shaped sealing ring sleeved at the lower end of the floating shaft, the upper end face of the V-shaped sealing ring elastically abuts against the lower plate face of the lower cover plate, and the lower end face of the V-shaped sealing ring elastically abuts against the upper end face of the boss extending out of the floating shaft.

8. The float mechanism for thread make and break detection as recited in claim 1, wherein: the lower end of the floating shaft body in the floating shaft is provided with a vertical extension arc plate of an integrated structure, and the vertical extension arc plate is inserted into the clamping assembly and the go-no go gauge conversion sleeve to complete the relative fixation of the floating shaft and the go-no go gauge conversion sleeve.

9. The float mechanism for thread make and break detection as recited in claim 1, wherein: the clamping assembly comprises two C-shaped clamping arc plates and a bolt, threaded through holes are respectively machined in the C-shaped clamping arc plates, the inner side and the outer side of the vertical extending arc plate are respectively tightly attached to the outer peripheral surface of the go-no go gauge conversion sleeve and the inner side of each C-shaped clamping arc plate, and the bolt penetrates through the threaded through holes on the same side of the two C-shaped clamping arc plates to complete clamping.

10. The floating mechanism for thread make-and-break detection according to any one of claims 3 or 4, wherein: the cavity enclosed by the connecting shaft sleeve and the driving shaft coupling is internally provided with springs which are arranged at equal angles in the circumferential direction, the upper ends of the springs abut against the surface of the driving shaft coupling, and the lower ends of the springs abut against the upper surface inside the connecting shaft sleeve.

Technical Field

The invention relates to the technical field of floating equipment for thread detection, in particular to a floating mechanism for thread on-off detection.

Background

At present, in machines, internal threads and external threads (namely, threading teeth) need to be formed on corresponding parts through threaded connection, and due to the fact that the threads of the parts or products are related to fastening reliability and even related to safety of the parts or products in use, more and more companies require to check the threads of the parts or products. At present, the detection heads of a plurality of thread detection machines only use the clearance between a shaft and a shaft sleeve to allow the angular direction to float through a spring, and part of the detection heads of the inlet and the thread detection machines use a mode similar to a plane bearing to allow the plane to float, but the cost is very high; the existing thread detection machine can generate two-aspect offset during detection, the first thread go-no-go gauge axis and the thread axis to be detected can generate parallel offset, and the second thread go-no-go gauge axis and the thread axis to be detected can generate non-parallel inclination angle offset; the thread leading-stopping detection equipment in the prior art often can cause product slippage, the thread leading-stopping gauge is stuck, the problems of false alarm detection and the like are solved, and the technical problems of low detection stability and reliability and the like are solved.

Disclosure of Invention

The invention provides a floating mechanism for detecting the on and off of threads, which solves one or more technical problems through improvement on related structures.

A float mechanism for thread make-and-break detection, comprising: the driving shaft is in threaded connection with the end face of the connecting shaft sleeve, the end face of the lower cover plate is in threaded connection with the lower end face of the connecting shaft sleeve, the floating shaft penetrates through the lower cover plate, the lower end of the floating shaft enables the conversion sleeve to be connected with the lower cover plate through a clamping assembly, The floating shaft is clamped and fixed.

Preferably, the floating mechanism for detecting the through and stop of the threads is in clearance connection with the upper hexagonal flange, the lower hexagonal flange and the hexagonal hole, the radius of the inscribed circle of the hexagonal hole is larger than the radius of the inscribed circle of the upper hexagonal flange and the lower hexagonal flange, and the radius of the inscribed circle of the hexagonal hole is smaller than the radius of the circumscribed circle of the upper hexagonal flange and the lower hexagonal flange.

Preferably, in the floating mechanism for detecting the thread passing and stopping, a first plane bearing is sleeved outside a hexagonal hole at the upper end of the floating shaft, and a lower ball surface in the first plane bearing is in contact with an upper plate surface of a circular ring plate at the upper end of the floating shaft.

Preferably, in the floating mechanism for detecting the thread passing and stopping, the floating shaft is further sleeved and connected with a second plane bearing, and an upper ball surface of the second plane bearing is in contact with a lower plate surface of an annular plate at the upper end of the floating shaft.

The floating mechanism for thread make-and-break detection according to any one of claims 3 or 4, wherein: the first rubber ring retaining block is sleeved outside the driving coupling, a first rubber ring is arranged in a groove of the first rubber ring retaining block, the upper surface of the first rubber ring is in elastic contact with the lower end surface of the inner side of the connecting shaft sleeve, and the upper rolling surface of the first plane bearing is abutted against the first rubber ring retaining block.

Preferably, the floating mechanism for detecting the through and stop of the thread further comprises a second rubber ring and a second rubber ring holding block, the first rubber ring holding block is sleeved outside the floating shaft, a second rubber ring is arranged in a groove of the second rubber ring holding block, the lower end face of the second rubber ring is in contact with the upper plate face of the lower cover plate, and the lower rolling surface of the second planar bearing is abutted against the second rubber ring holding block.

Preferably, the floating mechanism for detecting the through and stop of the threads further comprises a V-shaped sealing ring sleeved at the lower end of the floating shaft, the upper end face of the V-shaped sealing ring elastically abuts against the lower plate face of the lower cover plate, and the lower end face of the V-shaped sealing ring elastically abuts against the upper end face of the boss extending out of the floating shaft.

Preferably, the floating mechanism for detecting the thread passing and stopping is characterized in that a vertically extending arc plate of an integrated structure is arranged at the lower end of a floating shaft body in the floating shaft, and the vertically extending arc plate is inserted into the clamping assembly and the passing and stopping gauge conversion sleeve to complete the relative fixation of the floating shaft and the passing and stopping gauge conversion sleeve.

Preferably, the floating mechanism for detecting the thread passing and stopping comprises a clamping assembly and a bolt, wherein the clamping assembly comprises two C-shaped clamping arc plates and the bolt, threaded through holes are respectively processed in the C-shaped clamping arc plates, the inner side and the outer side of each vertical extending arc plate are respectively attached to the outer peripheral surface of the passing and stopping gauge conversion sleeve and the inner side and the peripheral surface of the C-shaped clamping arc plate, and the bolt penetrates through the threaded through holes on the same side of the two C-shaped clamping arc plates to complete clamping.

Preferably, in the floating mechanism for detecting the thread passing and stopping, springs arranged at equal angles in the circumferential direction are arranged in a cavity surrounded by the connecting shaft sleeve and the driving shaft coupling, the upper end of each spring abuts against the surface of the driving shaft coupling, and the lower end of each spring abuts against the upper surface inside the connecting shaft sleeve.

Description of the drawings:

the embodiments are further described with reference to the accompanying drawings, in which:

FIG. 1 is a front view of the overall structure of a floating mechanism for detecting the opening and closing of a screw thread according to the present invention;

FIG. 2 is a cross-sectional view of a float mechanism for thread make-and-break detection in accordance with the present invention;

the specific structure corresponding to the number is as follows:

the device comprises a driving shaft 1, a driving coupling 2, an upper hexagonal flange 21, a lower hexagonal flange 22, a connecting shaft sleeve 3, a floating shaft 4, a vertically extending arc plate 41, a go-no go gauge 5, a go-no go gauge conversion sleeve 6, a lower cover plate 7, a clamping assembly 8, a C-shaped clamping arc plate 81, a bolt 82, a first plane bearing 91, a second plane bearing 92, a first rubber ring 101, a second rubber ring 102, a first rubber ring holding block 111, a second rubber ring holding block 112 and a spring 12,

the following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description