CN217860991U - A kind of spanner - Google Patents

Abstract

The utility model provides a spanner can show the moment of torsion size in real time. The spanner comprises a spanner head assembly and a spanner handle assembly, wherein a torque measuring device is arranged in the spanner handle assembly, a torque display device is arranged outside the spanner handle assembly, and the torque measuring device is electrically connected with the torque display device and used for monitoring the locking force torque in the clamping process. The utility model discloses a observable of moment of torsion has avoided the artificial experience to press from both sides when pressing from both sides tight cutter, because of the various problems that artificial factors such as strength size, proficiency arouse.

Description

A kind of spanner

Technical Field

The utility model relates to a machine tool machining technical field, more specifically say and relate to a spanner, but real-time display moment of torsion size.

Background

The machine tool machining industry, cutter clamp handles (ER type/DSK type and the like), the powerful milling cutter handle and the spring chuck cutter handle are widely used, the cutter is locked by utilizing a clamping sleeve deformation principle by the cutter handle, the cutter is safe and reliable in the using process, but in the machining and cutting process of the cutter, the locking torque of the cutter handle influences the clamping precision and the machining stability of the cutter and the service life of the cutter handle: when the locking torque is too small, the clamping force of a cutter is possibly insufficient, the problems of cutter displacement, cutter vibration and the like can occur during cutting of the cutter, so that the cutter can be damaged, the machined size of a workpiece is unqualified, the cutter or a product is even scrapped, and the precision of machining equipment can be influenced in severe cases; the locking moment of torsion is too big, can appear handle of a knife locking mechanism and warp, influences cutter clamping precision, also can cause the inside collet to produce the damage, perhaps can't unpack apart when dismantling the tool changing once more, causes the cutter to be unable to use to make the handle of a knife life-span shorten.

At present, the cutter is locked by an attached special wrench, a hammer is used for knocking or a force applying rod is lengthened to meet the requirement of cutter pre-locking force, and the torque generated in the mode cannot be measured and is only based on human experience. Factors such as the size of artificial force, proficiency and the like are unstable, so that adverse consequences are easy to cause; secondly, the existing spanner is light and thin, the thickness is about 3-4mm, the spanner is easy to damage when a chuck is frequently disassembled, and a locking nut and the spanner are possibly damaged by a hammer head knocking mode.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem in the correlation technique to a certain extent.

Therefore, the utility model designs a can observe the spanner of moment of torsion size. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the embodiment of the application provides a wrench, the wrench includes wrench end subassembly, wrench handle subassembly, be provided with torque measurement device in the wrench handle subassembly, the outside is equipped with torque display device, torque measurement device is connected with torque display device electricity for the locking force moment of torsion of monitoring clamping in-process.

Preferably, the torque measuring device comprises a torque sensing assembly and a processing circuit, wherein one end of the torque sensing assembly is connected with the wrench head assembly, and the other end of the torque sensing assembly is connected with the processing circuit, and is used for converting a torque signal transmitted by the wrench head assembly into an electric signal and transmitting the electric signal to the processing circuit, and displaying the torque corresponding to the torque transmitted by the wrench head assembly to the torque display device.

Preferably, the torque sensing assembly comprises a torque sensor, an elastic strain shaft and a shaft strain sensor, wherein the shaft strain sensor is connected with the torque sensor through the elastic strain shaft and is used for converting the torque transmitted by the wrench head assembly into the torque signal through the elastic strain shaft.

Preferably, the processing circuit comprises: the control circuit is connected with the torque sensing assembly through the amplifying circuit and used for converting analog electric signals transmitted by the torque sensing assembly into digital signals after being amplified.

Preferably, the wrench head assembly further comprises: the replaceable clamping head is positioned at the front end of the wrench head component and is used for adapting to different cutters.

Preferably, one end of the wrench head assembly connected with the replaceable chuck is provided with an elastic bead and a spring for buckling the replaceable chuck to the wrench head assembly, and the other end of the wrench head assembly is connected with the wrench handle assembly in a sealing manner.

Preferably, the thickness of the connecting part of the replaceable clamping head and the clamping nut is 8-10mm.

Preferably, the display device includes a display screen and an adjustment button for adjusting a numerical return-to-zero correction operation or an adjustment operation of the torque display device.

Preferably, the wrench handle assembly further comprises a wrench connecting handle, a cavity capable of containing a power supply is arranged in the wrench connecting handle, and the wrench connecting handle is detachably connected with the wrench handle.

Preferably, the free end of the wrench connecting handle is provided with a detachable plug, the plug faces the direction of the cavity capable of containing the power supply, and the power supply is fixedly installed inside the wrench connecting handle through the plug.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

the utility model discloses for the spanner instrument of current clamping cutter, the moment of torsion can the visual measurement in the spanner use, and control factor is stable, and the moment of torsion of applying the appropriate scope can effectively protect inside clamp cover, avoids cutter damage, product damage, equipment damage etc. makes the locking force of cutter safe and reliable more.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional view of a wrench according to an embodiment of the present invention;

fig. 2 is a schematic top view of a wrench according to an embodiment of the present invention;

FIG. 3 is a schematic view of a wrench chuck according to an embodiment of the present invention;

fig. 4 is a schematic view of a wrench chuck and wrench combination according to an embodiment of the present invention.

Description of reference numerals:

1-replaceable chuck, 2-marble, 3-square tenon, 4-sealing ring, 5-outer sleeve, 6-dial, 7-display screen, 8-adjusting button, 9-connecting handle, 10-outer sleeve, 11-handle button, 12-spring, 13-elastic strain shaft, 14-shaft strain sensor, 15-lead, 16-amplifying circuit, 17-control circuit, 18-display circuit, 19-lead, 20-inner sleeve, 21-contact, 22-power supply, 23-spring and 24-plug.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

This embodiment provides a spanner, the spanner includes spanner head subassembly, spanner handle subassembly, be provided with torque measurement device in the spanner handle subassembly, the outside is equipped with torque display device, torque measurement device is connected with torque display device electricity for the locking force moment of torsion of monitoring clamping in-process. The spanner in this application can real-time observation spanner use in-process moment of torsion size, has solved in the past spanner use in-process moment of torsion and can not be surveyed, only relies on experience to press from both sides tight cutter, because of the size of artificial strength and unstable consequence that factors such as proficiency arouse.

In some embodiments of the present application, the torque measuring device of the wrench includes a torque sensing component and a processing circuit, wherein one end of the torque sensing component is connected to the wrench head component, and the other end of the torque sensing component is connected to the processing circuit, so as to convert the torque signal transmitted by the wrench head component into an electrical signal and transmit the electrical signal to the processing circuit, and display the torque magnitude corresponding to the torque transmitted by the wrench head component to the torque display device. The torque sensing assembly comprises a torque sensor, an elastic strain shaft and a shaft strain sensor, wherein the shaft strain sensor is connected with the torque sensor through the elastic strain shaft and is used for converting the torque transmitted by the wrench head assembly into the torque signal through the elastic strain shaft.

As a possible implementation manner in this application, the display device of the wrench includes a display screen and an adjustment button, wherein the adjustment button is used for adjusting the numerical value zero-resetting correction operation or the adjustment operation of the torque display device. The design of this scheme mainly considers the spanner in long-term use because reading deviation that factors such as temperature, humidity and sensor performance lead to, can effectively correct in time through this technical scheme.

As a possible implementation manner in the present application, the wrench handle assembly further includes a wrench connecting handle, wherein a cavity capable of containing a power supply is arranged inside the wrench connecting handle and detachably connected to the wrench handle; the free end of the wrench connecting handle is provided with a detachable plug, the plug faces the direction of the cavity capable of containing the power supply, and the power supply is fixedly installed inside the wrench connecting handle through the plug. The power supply in this application also can seal inside the spanner handle with the confined mode, with the power interface that charges set up on the spanner handle, in time replenish when being convenient for power energy to exhaust. The power supply energy can also be supplemented in other manners, such as arranging a solar panel on a very stressed part of the wrench handle for supplementing the power supply energy.

As a possible implementation manner in this application, the processing circuit of the wrench includes: the control circuit is connected with the sensing assembly through the amplifying circuit and used for converting analog electric signals transmitted by the sensing assembly into digital signals after being amplified, and the converted digital signals are displayed on the display device in a torque mode through certain conversion.

As a possible implementation manner in this application, the head assembly of the wrench further includes a replaceable chuck located at the front end of the head assembly for adapting to different tools, wherein a ball and a spring are disposed at one end of the head assembly connected to the replaceable chuck for fastening the replaceable chuck to the head assembly, and the other end of the head assembly is connected to the wrench handle assembly in a sealing manner. The clamping head of the conventional spanner is light and thin, the thickness is about 3-4mm, the clamping head is easy to damage when being frequently disassembled, and the locking nut and the spanner can be damaged by knocking with the hammer. The thickness of the connection part of the replaceable clamping head and the clamping nut is 8-10mm, so that the replaceable clamping head is not easy to damage, and is firm and durable.

For the spanner instrument that current clamping cutter used, technical scheme has following technological effect in this application: firstly, the monitoring tool locking force wrench can replace joints with different sizes and shapes according to different tool models, and during replacement, the wrench head assembly is connected with a square tenon type standard joint of a clamping head, so that the monitoring tool locking force wrench is convenient and simple; secondly, torque can be measured visually in the using process of the wrench, control factors are stable, and torque in a proper range is applied, so that an internal jacket can be effectively protected, and damage to a cutter and even damage to products and equipment can be avoided; thirdly, the spanner in this application can be according to the cutter model of difference to the draw-in groove length of considering lock nut comprehensively makes thicker dop, makes it not fragile, and is firm durable.

The contents of the above embodiments will be described with reference to a preferred embodiment.

As shown in fig. 1, the wrench in the application has a replaceable chuck 1, and for tool chucks of different specifications and models, chucks of different sizes such as ER32/ER25/ER16 are manufactured according to external clamping grooves of locknuts of different specifications and models of national standards, the inner square mortises on the right side of the replaceable chuck 1 are of uniform size, 1/2-inch universal interfaces are manufactured on the inner sides of the four square mortises, and a connecting part of a wrench handle assembly and the replaceable chuck is provided with a marble 2 and a spring 12 for conveniently mounting the wrench chucks of different specifications; the left side of the clamping head is connected with the cutter clamping nut, the thickness is increased, and the clamping head with the thickness of 8-10mm is manufactured, so that the clamping head is firm, durable, safe and reliable.

The spanner body in this application mainly includes that spanner head subassembly, moment of torsion sensing mechanism, circuit processing subassembly, moment of torsion display module, connect handle subassembly and back shroud subassembly etc. to connect and form. The wrench head component is provided with a square tenon head 3 corresponding to a square mortise in the right side of the replaceable chuck 1 and is hermetically connected with a wrench handle sleeve 5 through a sealing ring 4; inside wrench handle overcoat 5, the wrench head subassembly is connected with torque sensor's one end, transmits elastic strain axle 13 according to the size of the moment of wrench head transmission on, through strain sensor 14, with signal transmission to transform amplifier circuit 16, through control circuit 17 with analog signal dress conversion into digital signal (A/D conversion), finally feeds back to display circuit 18 to the accurate data of display moment connects internal power through wire 15, realizes closed-loop control.

The wrench display device comprises a dial 6, a display screen 7 and an adjusting button 8. The torque value zeroing correction or adjustment operation is realized by the adjusting button 8, the display screen 7 can clearly display the reading according to the difference of the torque values, and the torque value zeroing correction or adjustment operation comprises the functions of torque setting, unit setting, mode setting, value storage, value clearing, correction and the like, and has the characteristics of high precision, small error and the like.

The trigger handle assembly is connected with a connecting handle 9, the connecting handle 9 is connected with the handle assembly through a spiral rotating structure corresponding to the handle assembly, the connecting handle 9 comprises an outer sleeve 10 and a handle button 11, the outer sleeve 10 of the connecting handle 9 is hollow inside and is used for installing a power supply 22, such as batteries of different models, and the handle button 11 is convenient to install and detach the connecting handle.

The connecting handle further comprises an inner sleeve 20, the handle assembly is in hollow connection with the connecting handle 9, a power supply provided by the connecting handle can be provided for a processing circuit and a display device of the handle assembly through a wire 19, a detachable plug 24 is arranged at the free end of the wrench connecting handle, the plug faces towards the direction of a cavity capable of containing the power supply, a spring 23 is arranged in the wrench connecting handle, the plug fixedly installs the power supply inside the wrench connecting handle and has the effect of connecting a power supply electrode, and the other electrode of the power supply is connected with the plug through a contact 21.

When the plug is used, the power supply is installed after the plug with the connecting handle is detached, the plug is installed after the power supply is installed, the reading of the display screen is checked at the moment, and if the reading is not the preset reading, the adjusting button is adjusted, and the numerical value zeroing correction operation is carried out on the display device.

After the reading is calibrated, the replaceable chucks of corresponding models are replaced according to different nuts, and the torque can be displayed on the display device at the moment.

When the wrench is rotated, the torque sensor can transmit the torque transmitted by the wrench head component to the torque sensing component, the torque transmitted by the wrench head component is converted into the torque signal through the elastic strain shaft, then the torque signal is transmitted to the processing circuit, and finally the torque is displayed on the display device after signal amplification, analog-to-digital conversion and other signal processing.

The utility model discloses the defect that cutter clamping in-process moment of torsion size only relies on the sensation can be solved to the product, can show the moment of torsion real-time audio-visually on the display screen, and the reinforcing is at the accuracy of applying the moment of torsion of cutter clamping in-process, improves the security that the cutter holder used, reduces each item loss because of artificial factor causes, and is succinct practical.

It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a wrench, the spanner includes spanner head subassembly, spanner handle subassembly, its characterized in that, be provided with torque measurement device in the spanner handle subassembly, the outside is equipped with torque display device, torque measurement device is connected with torque display device electricity for the locking force moment of torsion of monitoring clamping in-process.

2. The wrench according to claim 1, wherein the torque measuring device includes a torque sensing assembly and a processing circuit, one end of the torque sensing assembly is connected to the wrench head assembly, and the other end of the torque sensing assembly is connected to the processing circuit, and is configured to convert a torque signal transmitted by the wrench head assembly into an electrical signal and transmit the electrical signal to the processing circuit, and display a torque corresponding to the torque transmitted by the wrench head assembly to the torque display device.

3. The wrench as claimed in claim 2, wherein the torque sensing assembly includes a torque sensor, a resilient strain shaft, and a shaft strain sensor connected to the torque sensor through the resilient strain shaft for converting torque transmitted by the wrench head assembly into the torque signal through the resilient strain shaft.

4. The wrench of claim 2, wherein the processing circuit comprises: the control circuit is connected with the torque sensing assembly through the amplifying circuit and is used for converting analog electric signals transmitted by the torque sensing assembly into digital signals after being amplified.

5. The wrench of claim 1, wherein the wrench head assembly further comprises: the replaceable chuck is positioned at the front end of the wrench head component and is used for adapting to different cutters.

6. The wrench as claimed in claim 5, wherein said wrench head assembly and said replaceable chuck head assembly are connected at one end with a ball and spring for snap-fitting said replaceable chuck head assembly to said wrench head assembly, said wrench head assembly being connected at the other end with a wrench handle assembly in a sealed manner.

7. The wrench as claimed in claim 5, wherein the thickness of the connection portion between the replaceable chuck and the clamping nut is 8-10mm.

8. The wrench according to claim 1, wherein the display device includes a display screen and an adjustment button for adjusting a numerical zero correction operation or an adjustment operation of the torque display device.

9. The wrench as claimed in claim 1, wherein the wrench handle assembly further comprises a wrench connecting handle, and a cavity for holding a power source is formed in the wrench connecting handle and detachably connected to the wrench handle.

10. The wrench as claimed in claim 9, wherein the free end of the wrench connecting handle is provided with a detachable plug, the plug is provided with a spring facing the cavity for accommodating the power supply, and the power supply is fixedly arranged inside the wrench connecting handle through the plug.

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