CN216954250U

CN216954250U - Thread gauge checking fixture

Info

Publication number: CN216954250U
Application number: CN202122942747.7U
Authority: CN
Inventors: 吕延登; 王玉坤
Original assignee: Suzhou Baikun Precision Machinery Co ltd
Current assignee: Suzhou Baikun Precision Machinery Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-07-12
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a thread gauge checking fixture which comprises a thread gauge, a fixed rod, a coupler and a connecting rod, wherein the fixed rod is connected with the connecting rod through the coupler; one end of the thread gauge is inserted into the square jack and fixedly connected with the fixed rod, and the other end of the thread gauge is provided with a thread detection part and a conical guide part; the thread detection part is in transitional connection with the main body through a first inclined plane, the guide part is arranged at one end, opposite to the coupler, of the thread detection part, the guide part is in transitional connection with the thread detection part through a second inclined plane, two symmetrical chip removal grooves are formed in the thread detection part, and two ends of each chip removal groove are connected to the first inclined plane and the second inclined plane respectively. The guiding conical surface of the guiding part can remove burrs in the threaded hole in advance, the burrs enter the chip removal grooves through the guiding conical surface, the chip removal grooves discharge the burrs and scraps in time, the resistance of the thread gauge entering the threaded hole is reduced, and the thread of a product is prevented from being damaged.

Description

Thread gauge checking fixture

Technical Field

The utility model belongs to the technical field of automatic detection, and relates to a thread gauge detection tool.

Background

The processing of metal screw hole divide into two processes, drilling + screw tap screw thread, can control the size of screw bottom hole in the drilling technology, therefore the detection adoption of screw thread only needs to adopt the no-go gage to detect. If the residual burrs and scraps produced in the threaded hole are fed into the thread tooth grooves of the thread gauge, the thread gauge can damage the threads of the workpiece when the thread gauge is fed into the threaded hole, and the overall qualification rate of the workpiece is affected.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: if burrs and scraps entering the thread tooth grooves of the thread gauge are prevented from damaging the thread of a workpiece.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a thread gauge detection tool comprises a thread gauge, a fixed rod, a coupler and a connecting rod, wherein the fixed rod is connected with the connecting rod through the coupler, and a square insertion hole is formed in one end, opposite to the coupler, of the fixed rod; one end of the thread gauge is inserted into the square jack and fixedly connected with the fixed rod, and the other end of the thread gauge is provided with a thread detection part and a conical guide part; the diameter ratio of screw thread test section the unilateral 1mm that is big of main part diameter of screw thread gauge, through a inclined plane transitional coupling between screw thread test section and the main part, the guide part set up in the screw thread test section is relative the one end of shaft coupling, the diameter ratio of guide part the unilateral 0.5mm that is little of diameter of screw thread test section, the guide part with through two transitional couplings in inclined plane between the screw thread test section, be provided with the chip groove of two symmetries in the screw thread test section, the both ends of chip groove are connected to respectively inclined plane one with inclined plane two.

Further, the included angle of the cross section of the guide conical surface of the guide part is 60 degrees.

The connecting rod is inserted into the jack and movably connected with the spring of the jack.

Furthermore, a guide groove communicated with the circular insertion hole is formed in the straight body of the connecting shaft, and a guide rod inserted into the guide groove is arranged at one end, located in the insertion hole, of the connecting rod.

Compared with the prior art, the utility model has the beneficial effects that:

the guiding conical surface of the guiding part can remove burrs in the threaded hole in advance, the burrs entering the chip removal groove from the guiding conical surface and entering the burrs in the threaded tooth groove of the thread gauge can also rapidly enter the chip removal groove, the chip removal groove timely discharges the burrs and scraps, the resistance of the thread gauge entering the threaded hole is reduced, and the thread of a product is prevented from being damaged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic structural view of a thread gauge fixture in the first embodiment;

FIG. 2 is a schematic view of a thread gauge;

fig. 3 is a schematic structural view of the gauge tool in the second embodiment.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Example one

Referring to fig. 1, the thread gauge detection tool comprises a thread gauge 10, a fixing rod 20, a coupler 30 and a connecting rod 40, wherein the fixing rod is connected with the connecting rod through the coupler, and a square insertion hole 21 is formed in one end, opposite to the coupler, of the fixing rod 20. Referring to fig. 2, one end of the thread gauge 10 is inserted into the square insertion hole 21 and is fixedly connected with the fixing rod 20, and the other end is provided with a thread detection part 11 and a tapered guide part 12; the included angle of the cross section of the guide conical surface of the guide part 12 is 60 degrees; the diameter ratio of screw thread detection portion 11 is unilateral 1mm greater than the main part diameter of screw thread gauge 10, through inclined plane one 13 transitional coupling between screw thread detection portion 11 and the main part, guide portion 12 sets up in the one end of screw thread detection portion relative shaft coupling, the diameter ratio of guide portion 12 is unilateral 0.5mm less than the diameter of screw thread detection portion 11, through inclined plane two 14 transitional coupling between guide portion and the screw thread detection portion, be provided with the chip groove 15 of two symmetries on the screw thread detection portion 11, the both ends of chip groove 15 are connected to inclined plane one 13 and inclined plane two 14 respectively. The guiding conical surface of the guiding part 12 removes burrs in the threaded hole in advance, the burrs entering the chip removal groove 15 from the guiding conical surface and entering the burrs in the thread tooth groove of the thread gauge 10 can also rapidly enter the chip removal groove 15, the chip removal groove 15 discharges the burrs and scraps in time, the resistance of the thread gauge 10 entering the threaded hole is reduced, and the thread of a product is prevented from being damaged.

Example two

The present embodiment is based on the first embodiment.

Referring to fig. 3, the checking fixture further comprises a connecting shaft 50, one end of the connecting shaft 50 is provided with a circular insertion hole, a spring 60 is placed in the circular insertion hole, and the connecting rod 40 is inserted into the insertion hole and movably connected with the spring 60 of the insertion hole. The straight body of the connecting shaft 50 is provided with a guide groove 51 communicated with the circular insertion hole, and one end of the connecting rod 40 positioned in the insertion hole is provided with a guide rod 70 inserted into the guide groove 51. The connecting axle is connected with the rotatory servo gear motor of drive thread gauge, and this embodiment is through addding the connecting axle for the thread gauge possesses the scalable function of elasticity, gives the buffering when the thread gauge just gets into the screw hole, has prolonged the life of thread gauge.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The thread gauge detection tool is characterized by comprising a thread gauge (10), a fixing rod (20), a coupler (30) and a connecting rod (40), wherein the fixing rod (20) is connected with the connecting rod (40) through the coupler (30), and one end, opposite to the coupler (30), of the fixing rod (20) is provided with a square insertion hole (21); one end of the thread gauge (10) is inserted into the square jack (21) and is fixedly connected with the fixed rod (20), and the other end of the thread gauge is provided with a thread detection part (11) and a conical guide part (12); the diameter ratio of screw thread test section (11) the unilateral 1mm that is big of main diameter of screw thread gauge (10), through inclined plane one (13) transitional coupling between screw thread test section (11) and the main part, guide part (12) set up in screw thread test section (11) is relative the one end of shaft coupling (30), the diameter ratio of guide part (12) the unilateral 0.5mm that is little of diameter of screw thread test section (11), guide part (12) with through two (14) transitional coupling on inclined plane between screw thread test section (11), be provided with chip groove (15) of two symmetries on screw thread test section (11), the both ends of chip groove (15) are connected to respectively inclined plane one (13) with two (14) on inclined plane.

2. Gauge according to claim 1, characterized in that the angle of the cross section of the guide cone of the guide portion (12) is 60 °.

3. The gauge tool according to claim 1, further comprising a connecting shaft (50), wherein one end of the connecting shaft (50) is provided with a circular insertion hole, a spring (60) is placed in the circular insertion hole, and the connecting rod (40) is inserted into the insertion hole and movably connected with the spring (60) of the insertion hole.

4. The gauge tool according to claim 3, wherein the straight body of the connecting shaft (50) is provided with a guide groove (51) communicated with the circular insertion hole, and one end of the connecting rod (40) in the insertion hole is provided with a guide rod (70) inserted into the guide groove (51).