CN106965113A - A kind of electromagnetic type torque spanner - Google Patents

Abstract

The invention discloses an electromagnetic torque wrench, which comprises a handle bar and an outer ring shell with an integrated structure with the handle bar. The inside of the handle bar is provided with an iron core with a coil sleeved on the outside, a compression chamber and an air storage chamber, the inside of the handle bar is provided with an air intake through-hole structure communicating with the outside world and the compression chamber and an air intake through-hole structure communicating with the compression chamber and the air storage chamber, 51 single-chip microcomputers are installed on the side of the handle bar, and the compression The interior of the chamber is provided with a permanent magnet at one end of the iron core, a valve core plate is fixed on one end surface of the permanent magnet, and the center of the valve core plate and the permanent magnet is a through-hole structure. The invention can effectively control the maximum strength of the screwed bolts. In addition, the device uses electromagnetic control, which is controllable. Moreover, the device can further control the effective force of the screwed bolts according to the magnitude of the current. The adjustment of the maximum force has a wide range of adjustment.

Description

An electromagnetic torque wrench

technical field

The invention relates to the technical field of machinery, in particular to an electromagnetic torque wrench.

Background technique

At present, in mechanical processing places, a wrench is required to tighten the bolts. In order to control the strength of the bolts, a spring-type torque wrench is used. controllability.

Contents of the invention

The object of the present invention is to provide an electromagnetic torque wrench to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

An electromagnetic torque wrench, comprising a handle rod and an outer ring housing integrated with the handle rod, the inside of the handle rod is provided with an iron core with a coil sleeved on the outside, a compression chamber and an air storage chamber, the The inside of the handle bar is provided with an air intake through-hole structure communicating with the outside world and the compression chamber and an air intake through-hole structure communicating with the compression chamber and the air storage chamber. 51 single-chip microcomputers are installed on the side of the handle bar, and the inside of the compression chamber is A permanent magnet is arranged at one end of the iron core, and a valve core plate is fixed on one end of the permanent magnet. The center of the valve core plate and the permanent magnet is a through-hole structure, and an air unit is installed inside the through-hole structure. To the valve, a first spring is fixed between the other end inside the compression chamber and the valve core plate, and the handle rod is provided with an exhaust hole connecting the air storage chamber and the outside world at the position located in the air storage chamber , a manual air valve is installed inside the exhaust hole, an annular air reserve chamber is provided inside the outer ring housing, an inner ring housing is provided inside the annular air reserve chamber, and the air reserve chamber is provided inside the annular air reserve chamber. The chamber and the air storage chamber are connected through an air intake through-hole structure. A plurality of stem holes are arranged inside the inner ring housing, and a stem is inserted into each of the stem holes. A second spring is fixed between the end of the contact rod and the inner wall of the outer ring housing, and the center of the inner ring housing is an inner ring structure.

Preferably, the outer ring housing and the inner ring housing are of an integral structure.

Preferably, an annular air reserve chamber inside the outer ring housing and the inner ring housing is provided between the outer ring housing and the inner ring housing.

Preferably, the second spring located inside the annular air reserve chamber is in a compressed state.

Preferably, the stem located inside the annular air reserved chamber is a rod-shaped structure with a radius at the top greater than a radius at the bottom.

Preferably, the structural shape and size of the stem hole into which the stem is inserted are the same as the structural shape and size of the stem.

As a preference, the current input terminals of the 51 single-chip microcomputers are connected to electricity through current wires.

Preferably, the current output terminal of the 51 single-chip microcomputer is connected to the current input terminal of the coil through a current wire.

Compared with prior art, the beneficial effect of the present invention is:

The invention can effectively control the maximum strength of the screwed bolts. In addition, the device uses electromagnetic control, which is controllable. Moreover, the device can further control the effective force of the screwed bolts according to the magnitude of the current. The adjustment of the maximum force has a wide range of adjustment.

Description of drawings

Fig. 1 is the full cut-away structure schematic diagram of a kind of electromagnetic torque wrench of the present invention;

Fig. 2 is the top view of a kind of electromagnetic torque wrench of the present invention;

Fig. 3 is a schematic diagram of the enlarged structure of the compression chamber in the present invention.

In the figure: 1, handle rod, 2, outer ring shell, 3, iron core, 4, coil, 5, compression chamber, 6, air storage chamber, 7, air intake through hole structure, 8, valve core plate, 9 , permanent magnet, 10, through-hole structure, 11, air check valve, 12, first spring, 13, exhaust hole, 14, manual air valve, 15, inner ring shell, 16, annular air reserved chamber, 17, contact rod hole, 18, contact rod, 19, second spring, 20, inner ring structure, 21,51 single-chip microcomputer.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1, Fig. 2 and Fig. 3, an embodiment provided by the present invention: an electromagnetic torque wrench, comprising a handle bar 1 and an outer ring housing 2 integrally structured with the handle bar 1, the handle The inside of the rod 1 is provided with an iron core 3 with a coil 4 sleeved on the outside, a compression chamber 5 and an air storage chamber 6, and the inside of the handle rod 1 is provided with an air intake through hole structure 7 communicating with the outside world and the compression chamber 5. Compression chamber 5 and air intake passage structure 7 of air storage chamber 6, 51 single-chip microcomputers 21 are installed on the side of the handle bar 1, and the inside of the compression chamber 5 is provided with a permanent magnet 9 at one end of the iron core 3, so One end face of the permanent magnet 9 is fixed with a valve core plate 8, the center of the valve core plate 8 and the permanent magnet 9 is a through-hole structure 10, and an air check valve 11 is installed inside the through-hole structure 10, so A first spring 12 is fixed between the other end of the compression chamber 5 and the valve core plate 8, and the handle bar 1 is provided with a drain connecting the air storage chamber 6 and the outside world at a position located in the air storage chamber 6. An air hole 13, a manual air valve 14 is installed inside the exhaust hole 13, an annular air reserved chamber 16 is arranged on the inner side of the outer ring housing 2, and an inner The ring housing 15, the air reserve chamber 16 and the air storage chamber 6 are communicated through an air intake through hole structure 7, and the inner ring housing 15 is provided with a plurality of rod holes 17, each of which A feeler rod 18 is inserted into the inside of the feeler rod hole 17, a second spring 19 is fixed between the end of the feeler rod 18 and the inner wall of the outer ring housing 2, and a second spring 19 is fixed between the inner wall of the inner ring housing 15. In the center is the inner ring structure 20 .

The outer ring housing 2 and the inner ring housing 15 have an integral structure; an annular air reserve chamber 16 located inside the two is provided between the outer ring housing 2 and the inner ring housing 15; The second spring 19 inside the annular air reserved chamber 16 is in a compressed state, so that the stem 18 can be inside the stem hole 17; the radius of the top of the stem 18 positioned in the annular air reserved chamber 16 is greater than the radius of the bottom thereof The rod-shaped structure; the structure shape and size of the rod hole 17 where the rod 18 is inserted is the same as the structure shape and size of the rod 18, the structure is compact, and the air will not leak during work; the 51 The current input end of the single-chip microcomputer 21 is connected to electricity through the current line; the current output end of the 51 single-chip microcomputer 21 is connected to the current input end of the coil 4 through the current line, so as to realize the input and effective control of the current.

Concrete way of use: in the work of the present invention, when in use, the current input end of 51 single-chip microcomputers 21 is inserted in the alternating current, according to the principle of electromagnetic conversion, at this moment, the two ends of iron core 3 can produce the magnetic field that constantly changes two poles of magnetic poles, and then According to the principle of same-sex repelling and opposite-sex attracting, at this time, the permanent magnet 9 performs a reciprocating movement, and under the joint action of the valve core plate 8 and the air check valve 11, the air is continuously pressed into the air storage chamber 6 and the annular air The interior of the reserved chamber 16, under the action of air pressure, makes each contact rod 18 work. When working, the hexagonal head of the bolt head is clamped in the inner ring structure 20, and each hexagonal position corresponds to a contact rod. 18 end, when screwing, when the force of screwing is greater than the pressure of the internal air at this time, the contact rod 18 will shrink to the inside of the annular air reserved chamber 16, after the work is completed, open the manual air valve 14, and the Air out and that's it.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. An electromagnetic torque wrench, comprising a handle rod (1) and an outer ring housing (2) integrally structured with the handle rod (1), characterized in that: the inside of the handle rod (1) is provided with The iron core (3), the compression chamber (5) and the air storage chamber (6) are sleeved with the coil (4) on the outside, and the inside of the handle rod (1) is provided with an air inlet connecting the outside world and the compression chamber (5) The through-hole structure (7) is connected to the air intake through-hole structure (7) of the compression chamber (5) and the air storage chamber (6), and 51 single-chip microcomputers (21) are installed on the side of the handle rod (1). The inside of the chamber (5) is provided with a permanent magnet (9) at one end of the iron core (3), and a valve core plate (8) is fixed on one end surface of the permanent magnet (9), and the valve core plate (8) And the center of the permanent magnet (9) is a through-hole structure (10), and an air check valve (11) is installed inside the through-hole structure (10), and the other end inside the compression chamber (5) and the The first spring (12) is fixed between the valve core plates (8), and the handle rod (1) is provided with a drain connecting the air storage chamber (6) and the outside world at the position of the air storage chamber (6). air hole (13), the interior of the exhaust hole (13) is equipped with a manual air valve (14), and the inner side of the outer ring housing (2) is provided with an annular air reserve chamber (16), the annular An inner ring housing (15) is arranged inside the air reserved chamber (16), and the air reserved chamber (16) communicates with the air storage chamber (6) through an air intake through hole structure (7), so The interior of the inner ring housing (15) is provided with a plurality of stem holes (17), each of the stem holes (17) is inserted with a stem (18), and the stem (18) A second spring (19) is fixed between the end of the outer ring housing (2) and the inner wall of the outer ring housing (2), and the center of the inner ring housing (15) is an inner ring structure (20). 2. The electromagnetic torque wrench according to claim 1, characterized in that: the outer ring housing (2) and the inner ring housing (15) are of an integrated structure. 3. An electromagnetic torque wrench according to claim 2, characterized in that an annular air reserve located inside the outer ring housing (2) and the inner ring housing (15) is provided Room (16). 4. The electromagnetic torque wrench according to claim 3, characterized in that: the second spring (19) located inside the annular air reserved chamber (16) is in a compressed state. 5 . The electromagnetic torque wrench according to claim 4 , characterized in that: the feeler rod ( 18 ) located inside the annular air reserved chamber ( 16 ) is a rod-shaped structure with a radius at the top greater than a radius at the bottom. 5 . 6. An electromagnetic torque wrench according to claim 5, characterized in that: the structural shape and size of the stem hole (17) where the stem (18) is inserted is the same as that of the stem (18) The structure shape and size are the same. 7. An electromagnetic torque wrench according to claim 1, characterized in that: the current input end of the 51 single-chip microcomputer (21) is connected to electricity through a current wire. 8. An electromagnetic torque wrench according to claim 7, characterized in that: the current output terminal of the 51 single-chip microcomputer (21) is connected to the current input terminal of the coil (4) through a current wire.