阅读说明：本技术 一种内螺纹通用型检测工具及其加工、使用方法 (Universal internal thread detection tool and machining and using methods thereof ) 是由 刘新军 龚桓 马章训 于 2021-02-05 设计创作，主要内容包括：一种内螺纹通用型检测工具及其加工、使用方法,检测工具包括主轴、卡盘、卡爪和软爪；主轴上开设有卡槽,其内活动镶嵌有三个卡盘；主轴侧部还开设有六方调节孔；卡爪为三个,其上各自开设有一孔,三颗螺钉通过分别三个孔将三个卡爪固定于三个卡盘上；三个卡爪上分别焊接固定有三个软爪；三个软爪上设有外螺纹；三个软爪之间设有芯棒装夹孔。本发明成功替代大部分满足条件的螺纹塞规,用于对加工工件内螺纹的通、止性进行判定,判定所加工的螺纹是否满足需求,本发明能增大检测范围,实现一款检测工具可进行同类螺距不同尺寸内螺纹的检测,为企业降低加工成本、提能增效起到了很重要的作用。(A universal internal thread detection tool and a processing and using method thereof are disclosed, wherein the detection tool comprises a main shaft, a chuck, a clamping jaw and a soft jaw; the main shaft is provided with a clamping groove, and three chucks are movably embedded in the clamping groove; the side part of the main shaft is also provided with a hexagonal adjusting hole; the three clamping jaws are respectively provided with a hole, and the three clamping jaws are fixed on the three chucks through the three holes respectively by the three screws; three soft claws are respectively welded and fixed on the three claws; external threads are arranged on the three soft claws; a core rod clamping hole is arranged between the three soft claws. The invention successfully replaces most of thread plug gauges meeting the conditions, is used for judging the passing and stopping performance of the internal threads of the machined workpiece and judging whether the machined threads meet the requirements or not, can enlarge the detection range, realizes that one detection tool can detect the internal threads with the same thread pitch and different sizes, and plays an important role in reducing the machining cost and improving the efficiency of enterprises.)

1. The utility model provides a general type of internal thread detects instrument which characterized in that: the detection tool comprises a main shaft (1), a chuck (2), a jaw (3) and a soft jaw (5);

the spindle (1) is provided with a clamping groove, and three chucks (2) are movably embedded in the clamping groove; the side part of the main shaft (1) is also provided with a hexagonal adjusting hole (1.1);

the number of the clamping jaws (3) is three, a hole is formed in each clamping jaw, and the three clamping jaws (3) are fixed on the three chucks (2) through the three holes by three screws respectively;

three soft claws (5) are respectively welded and fixed on the three claws (3);

external threads (5.1) are arranged on the three soft claws (5);

and a core rod clamping hole (5.2) is arranged between the three soft claws (5).

2. A method of manufacturing the universal female thread inspection tool of claim 1, comprising: the method comprises the following steps:

(A) firstly, respectively fixing three brass bars on three clamping jaws (3);

(B) then, the three chucks (2) are placed in the clamping grooves, and the three chucks (2) are moved into the main shaft (1) through the hexagonal adjusting holes (1.1) by using the adjusting handle;

(C) fixing the three clamping jaws (3) with the brass bars fixed on a chuck (2) through three screws (4), and screwing the three clamping jaws (3) with the brass bars through a hexagonal adjusting hole (1.1) by using an adjusting handle until the three brass bars are contacted with each other to be immovable, so as to process an original external thread (5.1);

(D) then, the tool with the processed external thread (5.1) uses a corresponding checking thread ring gauge or a middle diameter micrometer to detect the middle diameter of the thread action, and the checking are carried out simultaneously until the processed external thread (5.1) meets the detection requirement;

(E) and finally, adjusting the three brass bars to the maximum measuring position through a hexagonal adjusting hole (1.1) adjusting handle, and turning a core bar clamping hole (5.2) in the centers of the three brass bars.

3. A method of using the universal female thread detection tool of claim 1, wherein: the method comprises the following steps:

(A) confirming whether the internal thread to be detected is in the detection range of the universal detection tool: namely, the thread pitch is not the same as the external thread (5.1) on the tool, and the size is not in a detection range;

(B) manufacturing a core rod with a corresponding size according to the basic size difference value of the thread to be detected and the original external thread, putting the core rod into a core rod clamping hole (5.2), and putting the core rod into a hexagonal adjusting hole (1.1) by using an adjusting handle to finish the adjustment of the thread pitch diameter value;

(C) after the adjustment is completed, the internal thread of the workpiece to be detected is detected by using the tool to complete the through and stop of the thread with the relevant specification.

Technical Field

The invention relates to a universal internal thread detection tool and a machining and using method thereof, belonging to the technical field of machining and manufacturing.

Background

In the technical field of machining, the detection of the internal thread of a machined workpiece is generally performed by using a thread plug gauge, namely the working thread plug gauge is used for performing qualified judgment on the passing and stopping performance of the internal thread so as to determine whether the machined internal thread meets the requirement or not. The internal thread needs to correspond to a thread plug gauge, and for machining enterprises with various threads, the purchase, metering, use and management of the thread plug gauge need to invest relatively large manpower and material resources, so that the thread plug gauge is at a disadvantage in the current manufacturing era with intense competition.

Disclosure of Invention

The invention aims to solve the technical problem that each internal thread in the traditional machining industry needs to be detected by a thread plug gauge.

In order to solve the technical problems, the invention adopts the following technical scheme:

a universal internal thread detection tool comprises a main shaft 1, a chuck 2, a clamping jaw 3 and a soft jaw 5;

the spindle 1 is provided with a clamping groove, and three chucks 2 are movably embedded in the clamping groove; the side part of the main shaft 1 is also provided with a hexagonal adjusting hole 1.1;

the number of the clamping jaws 3 is three, a hole is formed in each clamping jaw, and the three clamping jaws 3 are fixed on the three chucks 2 through three holes respectively by three screws;

three soft claws 5 are respectively welded and fixed on the three claws 3;

external threads 5.1 are arranged on the three soft claws 5;

and a core rod clamping hole 5.2 is arranged between the three soft claws 5.

A machining method of a universal internal thread detection tool comprises the following steps:

(A) firstly, respectively fixing three brass bars on three clamping jaws 3;

(B) then, the three chucks 2 are placed in the clamping grooves, and the three chucks 2 are moved into the main shaft 1 through the hexagonal adjusting holes 1.1 by using the adjusting handle;

(C) fixing the three clamping jaws 3 with the brass bars fixed on a chuck 2 through three screws 4 respectively, and screwing the three clamping jaws 3 with the brass bars through a hexagonal adjusting hole 1.1 by using an adjusting handle until the three brass bars are contacted with each other and cannot move, so as to process original external threads 5.1;

(D) then, the tool with the processed external thread 5.1 uses a corresponding checking thread ring gauge or a middle diameter micrometer to detect the middle diameter of the thread action, and the checking are carried out simultaneously until the processed external thread 5.1 meets the detection requirement;

(E) and finally, adjusting the three brass bars to the maximum measuring position through a hexagonal adjusting hole 1.1 adjusting handle, and turning a core bar clamping hole 5.2 in the centers of the three brass bars.

A use method of a universal internal thread detection tool comprises the following steps:

(A) confirming whether the internal thread to be detected is in the detection range of the universal detection tool: namely, the thread pitch is not the same as the external thread 5.1 on the tool, and the size is not in a detection range;

(B) manufacturing a core rod with a corresponding size according to the basic size difference value of the thread to be detected and the original external thread, putting the core rod into the core rod clamping hole 5.2, and putting the core rod into the hexagonal adjusting hole 1.1 by using an adjusting handle to finish the adjustment of the thread pitch diameter value;

(C) after the adjustment is completed, the internal thread of the workpiece to be detected is detected by using the tool to complete the through and stop of the thread with the relevant specification.

The beneficial effect of adopting above-mentioned technical scheme is:

the invention successfully replaces most of thread plug gauges meeting the conditions by continuously carrying out theoretical analysis, data analysis, design and processing and production and use verification, is used for judging the pass and stop of the internal threads of the processed workpiece to determine whether the processed threads meet the requirements or not, can enlarge the detection range, realizes the detection of the internal threads with the same thread pitch and different sizes by using one detection tool, and plays an important role in reducing the processing cost and improving the efficiency of enterprises.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: 1-main shaft, 1.1-hexagonal adjusting hole, 2-chuck, 3-clamping jaw, 4-screw, 5-soft jaw, 5.1-external thread and 5.2-core rod clamping hole.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

as shown in fig. 1, the general internal thread type detection tool comprises a main shaft 1, a chuck 2, a jaw 3 and a soft jaw 5;

the spindle 1 is provided with a clamping groove, and three chucks 2 are movably embedded in the clamping groove; the side part of the main shaft 1 is also provided with a hexagonal adjusting hole 1.1 which can adjust the positions of the chuck 2 and the clamping jaw 3;

the number of the clamping jaws 3 is three, a hole is formed in each clamping jaw, and the three clamping jaws 3 are fixed on the three chucks 2 through three holes respectively by three screws;

three soft claws 5 are respectively welded and fixed on the three claws 3;

the three soft claws 5 are provided with external threads 5.1, and the size of the soft claws can be adjusted through hexagonal adjusting holes 1.1; the screw thread with one specification of metric screw thread, imperial screw thread and uniform screw thread can be processed according to the use requirement;

a core rod clamping hole 5.2 is arranged between the three soft claws 5; and (3) installing a core rod in the center of the core rod clamping hole 5.2 to adjust the size of the thread, and detecting the internal threads with the same thread pitch and different nominal diameters after the adjustment is finished.

A machining method of a universal internal thread detection tool comprises the following steps:

(A) firstly, respectively fixing three brass bars on three clamping jaws 3;

(B) then, the three chucks 2 are placed in the clamping grooves, and the three chucks 2 are moved into the main shaft 1 through the hexagonal adjusting holes 1.1 by using the adjusting handle;

(C) fixing the three clamping jaws 3 fixed with the brass bars on the chuck 2 through three screws 4 respectively, using an adjusting handle to fix the three clamping jaws 3 provided with the brass bars through a hexagonal adjusting hole 1.1, and screwing the three clamping jaws 3 to the workpiece until the three brass bars are contacted with each other to be immovable under the assumption that the internal threads of the workpiece to be measured range from M18 to M50, so as to process original external threads 5.1 (M18 1);

(D) then, the tool with the processed external thread detects the middle diameter of the thread action by using a corresponding checking thread ring gauge or a middle diameter micrometer, and the checking are carried out simultaneously until the processed external thread 5.1 meets the detection requirement;

(E) finally, the three brass rods are adjusted to the position with the maximum phi 52 measurement through the adjusting handle of the hexagonal adjusting hole 1.1, and then a phi 42 core rod clamping hole 5.2 is turned at the centers of the three brass rods.

A use method of a universal internal thread detection tool comprises the following steps:

(A) confirming whether the internal thread to be detected is in the detection range of the universal detection tool: i.e. whether the pitch is the same as the external thread 5.1 on the tool and whether the size is within the detection range (here M18 x 1-M50 x 1);

(B) manufacturing a core rod with a corresponding size according to the basic size difference value of the thread to be detected and the original external thread, putting the core rod into the core rod clamping hole 5.2, and putting the core rod into the hexagonal adjusting hole 1.1 by using an adjusting handle to finish the adjustment of the thread pitch diameter value;

(C) after the adjustment is completed, the internal thread of the workpiece to be detected is detected by using the tool to complete the through and stop of the thread with the relevant specification.

Example (b):

an internal thread workpiece to be detected: is a fine-pitch metric thread with an internal thread M28X 1-6H and a thread pitch of 1. The material of the tested part is selected as the soft claw 5 according to the actual use requirement, and the principle that the large diameter, the medium diameter and the small diameter of the same type of threads (such as metric system, imperial system, uniform threads and the like) are only related to the nominal diameter and the thread pitch is utilized for calculation. Machining an M18 x 1 external thread on the soft claw 5, and detecting whether the requirements of open and stop properties are met by using a standard calibration thread ring gauge; processing a phi 42 core rod clamping hole 5.2 in the center of the soft claw 5; and (3) placing a phi 20 core rod in the core rod clamping hole 5.2, and adjusting the hexagonal adjusting hole 1.1 to ensure that the phi 20 core rod is clamped. At this point, the M28X 1 thread plug gauge is completed, and the tool can be used to test a workpiece with M28X 1-6H internal threads.