CN201098871Y - Torque force controlling device for pneumatic hand tool - Google Patents
Torque force controlling device for pneumatic hand tool Download PDFInfo
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- CN201098871Y CN201098871Y CNU2007201550292U CN200720155029U CN201098871Y CN 201098871 Y CN201098871 Y CN 201098871Y CN U2007201550292 U CNU2007201550292 U CN U2007201550292U CN 200720155029 U CN200720155029 U CN 200720155029U CN 201098871 Y CN201098871 Y CN 201098871Y
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- hand tool
- pneumatic hand
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Abstract
A torsion controlling device for a pneumatic manual instrument consists of: a driving axle arranged in the pneumatic manual instrument, and one end of the driving axle is connected with the instrument-rotating component of the pneumatic manual instrument and the other end of the driving axle is connected with the power shaft of the pneumatic manual instrument to cause the driving axle to drive the instrument-rotating component to rotate synchronously; at least one pair of torsion sensing and measuring components is combined with the driving axle, and the torsion sensing and measuring components synchronously sense and measure the torsion value of the deformation of the driving axle and export a torsion value sensing and measuring signal; a signal connecting ring is connected with the driving axle, and a plurality of conductor rings are arranged on the signal connecting ring and the conductor rings are connected with the torsion sensing and measuring components to connect with and conduct the torsion signal outwards; a plurality of signal picking components are connectively contacted all the conductor rings of the signal connecting ring, and the signal picking components rotate synchronously along with the driving axle to pick the torsion value sensing and measuring signal exported by the torsion sensing and measuring components; at least one control circuit is connected with the signal picking components and the pneumatic manual instrument, and the circuit feeds back and inputs the torsion sensing and measuring value generated by the signal picking components rotating synchronously along with the driving axle, ensuring that the torsion value exported from the power shaft to the driving axle can be adjusted to reach the target value.
Description
Technical field
The utility model relates to instrument, relates in particular to a kind of pneumatic hand tool that is applied to, and has the synchronous feedback control of torsion, drives the torque controlling device of the pneumatic hand tool of pneumatic hand tool rotation with export target value torsion.
Background technology
Existing pneumatic hand tool is widely used in the rotation of assemblies such as screw, screw, bolt and locks or removal operation occasion, especially for parts such as the screw of different model on some full-sized car product or the precision optical machinery product or pattern, screw, bolt lock or the removal operating process in, need different rotary torsion values these screws, screw, bolt can suitably be installed and the removal operation.
Above-mentioned existing pneumatic hand tool the rotation of assemblies such as practical operation screw, screw, bolt lock or detach procedure in, can't effectively reach the torsion of accurate control pneumatic hand tool rotating shaft output, assemblies such as screw, screw, bolt can't be locked or removal by suitable torsion, torsion is excessive then can be caused assemblies such as screw, screw, bolt to collapse the tooth fracture or make the interior thread of corresponding sealed screw collapse tooth damaging, torsion is too little then can't to make assemblies such as screw, screw, bolt locked locking or removal smoothly, has a strong impact on the operational quality of pneumatic hand tool.
Be correlated with aspect the preceding patent documentation, as No. 295004 " pneumatic hand tool machine structural improvement " novel patent case of TaiWan, China patent gazette, disclose the existing pneumatic hand tool structure of a kind of typical case, but it there is no any mechanism or device for the control outputting torsion, the outputting torsion of pneumatic hand tool can't be stablized and accurately control, thereby have shortcoming and the problem that above-mentioned existing pneumatic hand tool is used operation.
The utility model content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, and provide a kind of torque controlling device of pneumatic hand tool, the actual outputting torsion of pneumatic hand tool driving shaft can be detected synchronously and detected via a torsion sensing assembly, signal connecting ring, several signal acquisition assemblies, with the torsion output state of actual feedback pneumatic hand tool.
A purpose more of the present utility model is to provide a kind of torque controlling device of pneumatic hand tool, wherein control circuit utilizes torsion sensing assembly, signal connecting ring, the actual outputting torsion value of pneumatic hand tool of signal acquisition assembly institute feedback input, with the line shaft in the accurate adjustment pneumatic hand tool and driving shaft outputting torsion value to desired value, make pneumatic hand tool to screw, screw or bolt lock or removal can be operated by suitable torsion.
The purpose of this utility model is realized by following technical scheme.
The torque controlling device of the utility model pneumatic hand tool is characterized in that, comprising:
One driving shaft, be located at a pneumatic hand tool inside, this driving shaft one end connects a throw assembly of pneumatic hand tool, and the driving shaft other end connects a line shaft of pneumatic hand tool, makes driving shaft rotated synchronously by line shaft driving rotation and driven rotary tool assembly;
At least one pair of torsion sensing assembly is incorporated on the driving shaft, the distortion torque value of this torsion sensing component synchronization sensing driving shaft, and export a torque value sensing signal;
One signal connecting ring is connected in driving shaft, and to rotate synchronously with driving shaft, this signal connecting ring is provided with several conductor loops, and this conductor loops connects the torsion sensing assembly, guides out this torsion signal with connection;
Corresponding respectively each conductor loops that is contacted with the signal connecting ring of several signal capturing assemblies, each signal capturing assembly is to rotate the torque value sensing signal that picks up the output of torsion sensing assembly synchronously with driving shaft;
At least one control circuit, the air intake apparatus that connects signal capturing assembly and pneumatic hand tool, import each signal capturing assembly pick up and the synchronous torsion sensing value of rotating of driving shaft with feedback, with pneumatic tool component synchronization and the actual torque value that is presented according to this torsion sensing value, and control line shaft adjustment exports the torque value of driving shaft to and can reach desired value.
The torque controlling device of aforesaid pneumatic hand tool, wherein driving shaft one end is provided with one first link to connect the throw assembly.
The torque controlling device of aforesaid pneumatic hand tool, wherein the driving shaft other end is provided with one second link to connect line shaft.
The torque controlling device of aforesaid pneumatic hand tool, wherein the torsion sensing assembly is the twist sheet.
The torque controlling device of aforesaid pneumatic hand tool, wherein the signal capturing assembly is a conductor.
The torque controlling device of aforesaid pneumatic hand tool, wherein control circuit comprises: an A/D conversion circuit, connect the signal capturing assembly, with the torque value sensing signal of input torsion sensing assembly output, and convert the torque value sensing signal of this simulation to corresponding torque value numerical data output; One microprocessor, connect this A/D conversion circuit, with input torque value numerical data, this microprocessor has torque value calculating, the comparison of torsion desired value, display driver, control instruction reception and execution, the output of pneumatic control signal and low power alarms function, export a corresponding pneumatic control signal output and a corresponding display signal to calculate torque value numerical data and comparison desired value; One key groups connects this microprocessor, instructs, makes microprocessor to carry out relative control command for the setting of input torque value, power supply and startup, demonstration switching controls; One driver element connects the air intake apparatus of microprocessor and pneumatic hand tool, receiving the motor control signal of microprocessor output, and control air intake apparatus air inlet and drive the line shaft rotation and drive the corresponding torsion of driving shaft output again; One display interface connects this microprocessor and a display, carries out relative function message demonstration to export the show message that shows torsion output valve, torque settings, power state according to the display signal of this microprocessor output to display; One power subsystem provides A/D conversion circuit, microprocessor, key groups, driver element, the required dc supply of display interface.
The torque controlling device of aforesaid pneumatic hand tool, wherein the display that display interface connected of control circuit is a LCD display.
The torque controlling device of aforesaid pneumatic hand tool, wherein the display that display interface connected of control circuit is a light-emitting diode display.
The torque controlling device of aforesaid pneumatic hand tool, the power subsystem of control circuit wherein comprises: a power supply module, as the source of supply of dc source; One low power indicator is connected between power supply module and microprocessor, and to hang down under the power state in power supply module, output one low electric power signal is given microprocessor.
The torque controlling device of aforesaid pneumatic hand tool, wherein power supply module is a dc-battery.
The beneficial effect of the torque controlling device of the utility model pneumatic hand tool, it comprises a driving shaft, at least one torsion sensing assembly, signal connecting ring, several signal acquisition assemblies and at least one control circuit; Wherein, this driving shaft one end connects the line shaft of pneumatic hand tool, and the other end connects a throw assembly; The torsion sensing assembly is incorporated into drive shaft surface, with the torque value signal of sensing driving shaft; This signal connecting ring is incorporated into driving shaft, and the signal connecting ring is provided with several conductor loops, and this conductor loops is connected with sensing component; The signal acquisition assembly is located on the pneumatic hand tool, and each conductor loops of contact signal connecting ring, to pick up the torsion sensing signal of torsion sensing assembly; This control circuit connects the air intake apparatus of signal acquisition assembly and pneumatic hand tool, give air inlet equipment to export suitable torsion driving power according to the torsion sensing signal of feedback input, make air intake apparatus export target value torsion to line shaft and driving shaft, reach the utility model and make the synchronous sensing feedback of pneumatic hand tool outputting torsion and accurately control the effect of outputting torsion to desired value.
Description of drawings:
Fig. 1 is the torque controlling device three-dimensional structure diagram of the utility model pneumatic hand tool.
Fig. 2 is the torque controlling device driving shaft stereochemical structure outside drawing of the utility model pneumatic hand tool.
Fig. 3 is the torque controlling device one stereochemical structure exploded view of the utility model pneumatic hand tool, shows the structure of the torque controlling device of pneumatic hand tool of the present utility model in conjunction with the pneumatic hand tool housing.
Fig. 4 is the control circuit square circuit diagram in the torque controlling device of the utility model pneumatic hand tool.
Fig. 5 is the key groups and the display preferred application illustration of the torque controlling device control circuit of the utility model pneumatic hand tool.
Fig. 6 is the preferred application example that the torque controlling device control circuit of the utility model pneumatic hand tool combines with pneumatic hand tool.
Major label description in figure: 100 torque controlling devices, 10 driving shafts, 11 first links, 12 second links, 20 and 30 torsion sensing assemblies, 21 and 31 torque value sensing signals, 40 signal connecting rings, 41 to 44 conductor loops, 45 and 46 leads, 51 to 54 signal capturing assemblies, 60 control circuits, 61 A/D conversion circuits, 611 torque value numerical datas, 62 microprocessors, 621 pneumatic control signals, 622 display signals, 63 key groups, 631 to 635 buttons, 64 driver elements, 65 display interfaces, 651 displays, the 651A power supply shows block, the 651B pattern shows block, 651C numerical value shows block, 651D status display area piece, 66 power subsystems, 661 power supply modules, 662 low power indicators, 662A hangs down the electric power signal, 200 pneumatic hand tool, 210 throw assemblies, 220 line shafts, 230 back casings, 240 procapsids, 241 to 244 holders, 250 starting switches, 300 air intake apparatus.
The specific embodiment
Consult Fig. 1, Fig. 2 and shown in Figure 3, the torque controlling device 100 of pneumatic hand tool of the present utility model comprises a driving shaft 10, at least one pair of torsion sensing assembly 10 and 30, signal connecting ring 40, several signal acquisition assemblies 51,52,53 and 54 and at least one control circuit 60; Wherein, this driving shaft 10 is located at a pneumatic hand tool 200 inside, driving shaft 10 1 ends are provided with one first link 11, first link 11 connects a throw assembly 210 of pneumatic hand tool 200, the form of this throw assembly 210 is not limit, be to be example with the screwdriver in the utility model, other also should belong to technology category of the present utility model as throws such as screw socket, bolt collar or drill bits; The other end of this driving shaft 10 is provided with one second link 12, this second link 12 connects a line shaft 220 of pneumatic hand tool 200, so that being subjected to line shaft 220 to drive rotation and drive above-mentioned throw assembly 210, rotates synchronously driving shaft 10, the connected mode that this second link 12 and line shaft are 220 is not limited to connected directly or indirectly, be directly to be connected to example in the utility model, other also should belong to technology category of the present utility model as the indirect connection by reducing gear or gear.This power glaze 220 is to be provided with to be fixed in the back casing 230 of this pneumatic hand tool 200.
This signal connecting ring 40 is connected in driving shaft 10, to rotate synchronously with driving shaft 10, signal connecting ring 40 is provided with several conductor loops 41,42,43 and 44, this conductor loops 41,42,43 and 44 is connected torsion sensing assembly 20 and 30 with several wires 45 with 46, guide out this torsion signal 21 and 31 with connection.
Above-mentioned signal capturing assembly 51,52,53 and 54, be conductor assembly, the corresponding respectively conductor loops 41 that is contacted with above-mentioned signal connecting ring 40,41,43 and 44, to rotate the torque value sensing signal 21 and 31 that picks up above-mentioned torsion sensing assembly 20 and 30 outputs synchronously with driving shaft 10, each signal capturing assembly 51,52,53 and 54 fixed form is not limit, be that to enumerate procapsid 240 outer peripheral edge (as shown in Figure 3) that are arranged at pneumatic hand tool 200 be example in the utility model, promptly these procapsid 240 outsides are provided with several holders 241,242,243 and 244, so that this signal capturing assembly 51 to be provided respectively, 52,53 and 54 is ccontaining fixing, this signal capturing assembly 51,52,53 and 54 are fixed in the mode and the not exclusive fixed form of the procapsid 240 of pneumatic hand tool 200, the fixedly signal capturing assembly 51 of other equivalence, 52,53 and 54 mode also belongs to technology category of the present utility model.
Above-mentioned control circuit 60 connects above-mentioned signal capturing assembly 51,52,53 and 54 and the air inlet of pneumatic hand tool 200 be not equipped with 300, with feedback input signal acquisition component 51,52,53 and 54 are picked up the torsion sensing value 21 and 31 of rotating synchronously with driving shaft 10, so that control circuit 60 reaches actual torque value synchronously according to the throw assembly 210 that this torsion sensing value 21 and 31 is presented, and control air intake apparatus 300 is adjusted air inflows and is driven the torque value that line shafts 220 export driving shaft 10 to and can reach desired value or maximum, the form of this control circuit 60 is not limit, can be a circuit board or single IC for both form, store in advance or write in this control circuit 60 with practical operation torque value with driving shaft 10.The form of above-mentioned air intake apparatus 300 is not limit, and is to be example with electronic inflating pump in the utility model.
Consult shown in Figure 4, circuit block diagram for control circuit 60 preferred embodiments in the torque controlling device 100 of the present utility model, wherein, this control circuit 60 comprises an A/D conversion circuit 61, microprocessor 62, key groups 63, driver element 64, display interface 65 and power subsystem 66, this A/D conversion circuit 61 connects signal capturing assembly 51,52,53 and 54, with the torque value sensing signals 21 and 31 of input torsion sensing assembly 20 and 30 outputs, and convert the torque value sensing signal 21 and 31 of this simulation 611 outputs of to corresponding torque value numerical data.
Above-mentioned microprocessor 62, connect A/D conversion circuit 61, with input torque value numerical data 611, this microprocessor 62 has functions such as torque value calculating, the comparison of torsion desired value, display driver, control instruction reception and execution, alarm output, motor control signal output and low power alarms, export a corresponding pneumatic control signal 621 outputs and a corresponding display signal 622 to calculate torque value numerical data 611 and comparison desired value.
Above-mentioned key groups 63 connects microprocessor 62, with control instructions such as the setting of input torque value, power supply and startup, demonstration switchings, makes microprocessor 62 carry out relative control command.
Above-mentioned driver element 64 connects the line shaft 220 of microprocessor 62 and above-mentioned pneumatic hand tool 200, to receive the pneumatic control signal 621 of microprocessor 62 outputs, thereby the air inflow of control air intake apparatus 300 drives driving shaft 10 export target values or peaked torsion to drive line shaft 220 rotations.
Above-mentioned display interface 65 connects a microprocessor 62 and a display 651, give display 651 to export show messages such as showing initial operational state, torsion output valve, torque settings, power state and alarm state according to the display signal 622 of microprocessor 62 outputs, the form of this display 651 is not limit, the utility model is to be example with the LCD display, and other also belongs to technology category of the present utility model as light-emitting diode display.
Above-mentioned power subsystem 66, above-mentioned A/D conversion circuit 61 is provided, microprocessor 62, key groups 63, driver element 64, the dc supply that display interface 65 is required, these power subsystem 66 forms are not limit, be to constitute example in the utility model with a power supply module 661 and low power indicator 662, this power supply module 661 is a dc-battery, with source of supply as dc source, low power indicator 662 is connected in 62 of power supply module 661 and microprocessors, be beneficial to power supply module 661 under low power state, output one low electric power signal 662A give microprocessor 62, and the caution flood that makes microprocessor 62 export corresponding low electric power ceases to display 651 and shows.
Consult Fig. 5 and shown in Figure 6, preferred application example for the torque controlling device 100 of the utility model pneumatic hand tool, wherein, the key groups 63 of Fig. 5 display control circuit 60, it has a button 631,632,633,634 and 635, represent power supply respectively, model selection, set, upwards reach to inferior operation push-button, to be used to set torque value, power supply and startup, show control instructions such as switching, under the normality operation, can select to follow the trail of (TRACK) mode, allow by this torsion sense play staff part 20 and 30, signal connecting ring 40, several signal acquisition assemblies 51,52,53 and 54 feedbacks are imported actual torque value and are given microprocessor 62, follow the trail of actual torque value with synchronous at any time, and in display 651, to show its torque value.
Consulting the picture of display shown in Figure 5 651, is that planning has a power supply to show that block 651A, pattern show that block 651B, numerical value show block 651C, and status display area piece 651D is with relative display power supply, model selection, numerical value, mode of operation.
Consult shown in Figure 6, this driving shaft 10, at least one pair of torsion sensing assembly 20 and 30, signal connecting ring 40, several signal acquisition assemblies 51,52,53 and 54 and at least one control circuit 60 all be arranged in the back casing 230 and procapsid 240 of pneumatic hand tool 200, can be integrated in the original existing pneumatic hand tool, can not increase volume, can make these pneumatic hand tool 200 integral body possess above-mentioned automatic or manual operator scheme described in the utility model, and this set starting switch 250 in pneumatic hand tool 200 outsides, be to start air intake apparatus 300 air inlets to pneumatic hand tool 200 inside in order to trigger, drive line shaft 220 to drive driving shaft 10 rotations, this control circuit 60 might not be included this pneumatic hand tool 200 inside in, also can be the cell arrangement that is independent of outside the pneumatic hand tool 200.
Fig. 1 is to the torque controlling device of pneumatic hand tool of the present utility model shown in Figure 6, wherein related description that is disclosed and diagram, only for ease of illustrating its practical new technique content and technological means, a preferred embodiment that is disclosed, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (10)
1. the torque controlling device of a pneumatic hand tool is characterized in that, comprising:
One driving shaft, be located at a pneumatic hand tool inside, this driving shaft one end connects a throw assembly of pneumatic hand tool, and the driving shaft other end connects a line shaft of pneumatic hand tool, makes driving shaft rotated synchronously by line shaft driving rotation and driven rotary tool assembly;
At least one pair of torsion sensing assembly is incorporated on the driving shaft, the distortion torque value of this torsion sensing component synchronization sensing driving shaft, and export a torque value sensing signal;
One signal connecting ring is connected in driving shaft, and to rotate synchronously with driving shaft, this signal connecting ring is provided with several conductor loops, and this conductor loops connects the torsion sensing assembly, guides out this torsion signal with connection;
Corresponding respectively each conductor loops that is contacted with the signal connecting ring of several signal capturing assemblies, each signal capturing assembly is to rotate the torque value sensing signal that picks up the output of torsion sensing assembly synchronously with driving shaft;
At least one control circuit, the air intake apparatus that connects signal capturing assembly and pneumatic hand tool, import each signal capturing assembly pick up and the synchronous torsion sensing value of rotating of driving shaft with feedback, with pneumatic tool component synchronization and the actual torque value that is presented according to this torsion sensing value, and control line shaft adjustment exports the torque value of driving shaft to and can reach desired value.
2. the torque controlling device of pneumatic hand tool according to claim 1 is characterized in that, described driving shaft one end is provided with one first link to connect the throw assembly.
3. the torque controlling device of pneumatic hand tool according to claim 1 is characterized in that, the described driving shaft other end is provided with one second link to connect line shaft.
4. the torque controlling device of pneumatic hand tool according to claim 1 is characterized in that, described torsion sensing assembly is the twist sheet.
5. the torque controlling device of pneumatic hand tool according to claim 1 is characterized in that, described signal capturing assembly is a conductor.
6. the torque controlling device of pneumatic hand tool according to claim 1 is characterized in that, described control circuit comprises:
One A/D conversion circuit connects the signal capturing assembly, with the torque value sensing signal of input torsion sensing assembly output, and converts the torque value sensing signal of this simulation to corresponding torque value numerical data output;
One microprocessor, connect this A/D conversion circuit, with input torque value numerical data, this microprocessor has torque value calculating, the comparison of torsion desired value, display driver, control instruction reception and execution, the output of pneumatic control signal and low power alarms function, export a corresponding pneumatic control signal output and a corresponding display signal to calculate torque value numerical data and comparison desired value;
One key groups connects this microprocessor, instructs, makes microprocessor to carry out relative control command for the setting of input torque value, power supply and startup, demonstration switching controls;
One driver element connects the air intake apparatus of microprocessor and pneumatic hand tool, receiving the motor control signal of microprocessor output, and control air intake apparatus air inlet and drive the line shaft rotation and drive the corresponding torsion of driving shaft output again;
One display interface connects this microprocessor and a display, carries out relative function message demonstration to export the show message that shows torsion output valve, torque settings, power state according to the display signal of this microprocessor output to display;
One power subsystem provides A/D conversion circuit, microprocessor, key groups, driver element, the required dc supply of display interface.
7. the torque controlling device of pneumatic hand tool according to claim 6 is characterized in that, the display that display interface connected of described control circuit is a LCD display.
8. the torque controlling device of pneumatic hand tool according to claim 6 is characterized in that, the display that display interface connected of described control circuit is a light-emitting diode display.
9. the torque controlling device of pneumatic hand tool according to claim 6 is characterized in that, the power subsystem of described control circuit comprises: a power supply module, as the source of supply of dc source; One low power indicator is connected between power supply module and microprocessor, and to hang down under the power state in power supply module, output one low electric power signal is given microprocessor.
10. the torque controlling device of pneumatic hand tool according to claim 9 is characterized in that, described power supply module is a dc-battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201550292U CN201098871Y (en) | 2007-07-20 | 2007-07-20 | Torque force controlling device for pneumatic hand tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201550292U CN201098871Y (en) | 2007-07-20 | 2007-07-20 | Torque force controlling device for pneumatic hand tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201098871Y true CN201098871Y (en) | 2008-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201550292U Expired - Fee Related CN201098871Y (en) | 2007-07-20 | 2007-07-20 | Torque force controlling device for pneumatic hand tool |
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| Country | Link |
|---|---|
| CN (1) | CN201098871Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375459A (en) * | 2010-08-10 | 2012-03-14 | 中国气动工业股份有限公司 | Torque control device of power locking tool and control process thereof |
| CN105043751A (en) * | 2015-08-31 | 2015-11-11 | 符自彬 | Intelligent electric screwdriver detection device |
-
2007
- 2007-07-20 CN CNU2007201550292U patent/CN201098871Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375459A (en) * | 2010-08-10 | 2012-03-14 | 中国气动工业股份有限公司 | Torque control device of power locking tool and control process thereof |
| CN105043751A (en) * | 2015-08-31 | 2015-11-11 | 符自彬 | Intelligent electric screwdriver detection device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20120720 |