CN201023150Y - Electric lig saw blade fast-assembling fixture - Google Patents
Electric lig saw blade fast-assembling fixture Download PDFInfo
- Publication number
- CN201023150Y CN201023150Y CNU2007200373695U CN200720037369U CN201023150Y CN 201023150 Y CN201023150 Y CN 201023150Y CN U2007200373695 U CNU2007200373695 U CN U2007200373695U CN 200720037369 U CN200720037369 U CN 200720037369U CN 201023150 Y CN201023150 Y CN 201023150Y
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- saw
- cramp
- saw cramp
- shell
- saw blade
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Abstract
The utility model relates to a knife tool installation holding fixture on an electric curved saw, in particular to a saw bit fast-assembling holding fixture on an electric curved saw, which is a device for installing saw bits on a reciprocating lever of the curved saw. The knife tool installation holding fixture comprises a saw cramp, a saw cramp housing, and a saw cramp pin, wherein the saw cramp housing is fixed at the lower front end of the reciprocating lever, the fixed saw cramp housing is provided with a die cavity which has a downward opening, the saw cramp is positioned in the die cavity, the rear wall of the saw cramp housing is provided with vertical grooves, other grooves are also arranged at positions on the saw cramp, wherein the positions are corresponding to the positions of the grooves on the rear wall, the unclamping and clamping of the saw bits can be realized by the fore-and-aft remove of the saw cramp, the saw cramp pin passes through holes on the saw cramp and the side wall of the saw cramp housing, a device used to adjusting the fore-and-aft remove and locking of the saw cramp is arranged on the saw cramp housing. The installation parts of the saw bits are allowed to insert into the grooves on the saw cramp and the saw cramp housing, and the width of the bottom of each groove which is also provided with a horn-type opening is 0.8 millimeter to 1.2 millimeters. The holding fixture of utility model has the advantages that the manufacturing cost is low, the installation of saw bits is convenient and fast, and the installation accuracy is excellent.
Description
Technical field
The utility model relates to the anchor clamps of mounting cutter on a kind of electric jig saw, especially a kind of electric jig saw saw blade fast fixture.
Background technology
Sweep-saw is widely used in fields such as timber processing, decoration decoration, be used for curve, straight cuts processing to timber plate, compressive plate, glued board, resin plate etc., along with development of technology and development, people constantly improve the serviceability of sweep-saw, wherein just relate to the technology on the reciprocating lever that how saw blade is fixed on sweep-saw, designed blade clamp require to make saw blade in the replacing process is installed more fast, convenient, install firmly and installation accuracy high.The Chinese invention patent application, the applying date is on June 16th, 2005, publication number is the chuck that CN1695857A disclosed " quick clamping head for electric jig saw " discloses a kind of sweep-saw saw blade Fast Installation, this chuck stretches into the saw blade installation position groove of chuck, and utilize angle of nut rotation that saw blade is stuck on the chuck with profiled holes, this quick chuck is easy for installation, fast, but the shortcoming that exists has: one, in actual use, the thickness of saw blade is inconsistent in fact, its thickness does not wait between the 1.0-1.7 millimeter, so the thickness of the groove in the chuck is selected a maximum for use, saw blade in use can be shaken after installing like this, has influenced the machining accuracy of sweep-saw; Two, owing to the size that can block the saw blade position on the profiled holes nut is less, so the mechanical performance to the profiled holes nut requires high, the profiled holes nut often requires to use material and corresponding heat treatment and higher processing precision preferably, has so then improved the processing cost of whole chuck.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of novel electric jig saw saw blade fast fixture is provided, and the installation accuracy that overcomes existing chuck is poor, the deficiency that processing cost is high.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of electric jig saw saw blade fast fixture, be that saw blade is installed in device on the sweep-saw reciprocating lever, the downward external part of described reciprocating lever is a flat bar, and the device of described installation saw blade comprises saw cramp, saw cramp shell, saw cramp pin; The saw cramp shell is fixed on the lower front end of reciprocating lever, saw cramp shell after fixing has a die cavity that Open Side Down, relative with opening in the die cavity is diapire, also have antetheca and rear wall by the sweep-saw direction of motion in the die cavity, both sides be sidewall, saw cramp is built in the die cavity, the rear wall of saw cramp shell is provided with the groove of vertical direction, position corresponding to the rear wall groove on the saw cramp also is provided with vertical groove, both grooves can be allowed the insertion of saw blade installation position, the moving forward and backward of saw cramp can be realized unclamping and clamp saw blade, the saw cramp pin is in the hole of saw cramp and saw cramp side wall of outer shell, and the saw cramp shell is provided with and is used to regulate the device that saw cramp moves forward and backward and locks.
Further saw blade is installed in order to realize changing fast, the device that described adjusting saw cramp moves forward and backward and locks comprises the puller bolt that is arranged on saw cramp shell antetheca, the front end face of puller bolt contacts with the front bevel of saw cramp, the outer end of puller bolt has handwheel, thereby be with on the puller bolt and impel puller bolt to screw in to prop up saw cramp, make saw cramp compress the torsion spring of saw cutter, be provided with the flexure strip that promotes the saw cramp reach mutually nearby in saw cramp and saw cramp housing back wall, flexure strip to the motive force of saw cramp less than the pressure of puller bolt to saw cramp; Be provided with the ejector spring that saw cramp is promoted between the diapire of described saw cramp and saw cramp shell downwards; The slotted hole of the hole of running through the saw cramp pin on the described saw cramp for being obliquely installed up and down, the center of slotted hole lower end are than the rear wall of the more close saw cramp shell in the center of upper end, and the frontal plane of described saw cramp has along last outward-dipping ramp structure extremely down.
Further also be saw blade to be installed in order to realize changing fast, described flexure strip be the one side at a kind of right-angle structure, right angle between saw cramp and the saw cramp housing back wall, on one side between saw cramp and saw cramp outer shell bottom wall, the limit between flexure strip saw cramp and the saw cramp outer shell bottom wall is provided with that to withstand on saw blade terminal and can be with the little elastic claw of the downward promotion of saw blade.
The installation accuracy of saw blade on anchor clamps is good, installation is firm in order to make, the bottom land wide of groove of allowing the insertion of saw blade installation position on described saw cramp shell and the saw cramp is 0.8 ~ 1.2 millimeter, and has a horn opening, such bottom land is wide to be that saw blade at different manufacturers production exists different-thickness and fixed, even 1.0 millimeters thin saw blades also can obtain good installation accuracy; Obviously, the installation accuracy of saw blade on anchor clamps is good, installation is firm in order to make equally, and the gap between saw cramp and saw cramp side wall of outer shell is little what guarantee should try one's best under the mobile condition of saw cramp.
The beneficial effects of the utility model are, electric jig saw saw blade fast fixture of the present utility model, under situation same quick and easy for installation, improved existing chuck installation accuracy, reduced processing cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
1. saw blades among the figure, 2. reciprocating lever, 3. saw cramp, 4. saw cramp shell, 5. saw cramp pin, 6. puller bolt, 7. torsion spring, 8. flexure strip, 9. ejector spring, 61. handwheels, 81. little elastic claws.
The specific embodiment
Of the present utility model a kind of concrete structure shown in attached Fig. 1 and 2, reciprocating lever 2 downward external part cross sections are flat slightly rectangle, the device that saw blade 1 is installed comprises saw cramp 3, saw cramp shell 4, saw cramp pin 5, saw cramp shell 4 is fixed on the lower front end of reciprocating lever 2, saw cramp shell 4 after fixing has a rectangle die cavity that Open Side Down, relative with opening in the rectangle die cavity is diapire, also have antetheca and rear wall by the sweep-saw direction of motion in the die cavity, both sides be sidewall, the saw cramp 3 of rectangle is built in the rectangle die cavity, the rear wall of saw cramp shell 4 is provided with the groove of vertical direction, position corresponding to the rear wall groove on the saw cramp 3 also is provided with vertical groove, both grooves can be allowed the insertion of saw blade 1 installation position, the moving forward and backward of saw cramp 3 can be realized unclamping and clamp saw blade 1, saw cramp pin 5 is in the hole of saw cramp 3 and saw cramp shell 4 sidewalls, and saw cramp shell 4 is provided with and is used to regulate the device that saw cramp 3 moves forward and backward and locks.
The device that adjusting saw cramp 3 moves forward and backward and locks comprises the puller bolt 6 that is arranged on saw cramp shell 4 antethecas, the front end face of puller bolt 6 contacts with the frontal plane of saw cramp 3, the outer end of puller bolt 6 has handwheel 61, impel puller bolt 6 to screw in the torsion spring 7 that moves behind the promotion saw cramp 3 thereby be with on the puller bolt 6, torsion spring 7 one ends are connected on the puller bolt 6, an end is connected on the saw cramp shell 4, be provided with the flexure strip 8 that promotes saw cramp 3 reaches mutually nearby at saw cramp 3 and saw cramp shell 4 rear walls, the motive force of 8 pairs of saw cramps 3 of flexure strip is less than the motive force of 6 pairs of saw cramps 3 of puller bolt; Be provided with the ejector spring 9 that saw cramp 3 is promoted between the diapire of described saw cramp 3 and saw cramp shell 4 downwards; The long lumbar hole of the hole of running through saw cramp pin 5 on the described saw cramp 3 for being obliquely installed up and down, the center of long lumbar hole lower end are than the rear wall of the more close saw cramp shell 4 in the center of upper end, and the frontal plane of saw cramp 3 has along last outward-dipping ramp structure extremely down.
Flexure strip 8 be the one side at a kind of right-angle structure, right angle between saw cramp 3 and saw cramp shell 4 rear walls, on one side between saw cramp 3 and saw cramp shell 4 diapires, the limit between flexure strip 8 saw cramps 3 and saw cramp shell 4 diapires is provided with that to withstand on saw blade 1 terminal and can be with the little elastic claw 81 of saw blade 1 downward promotion.
As shown in Figure 2, allow on saw cramp shell 4 and the saw cramp 3 that the bottom land of groove of insertion of saw blade 1 installation position is wide and be the 1.0-1.4 millimeter, and have horn opening.
As shown in Figure 2, saw cramp pin 5 carries out axial location by the Spring Card that is arranged on outside the two ends.
Groundwork principle of the present utility model is such:
When needs are installed saw blade 1, as long as 61 1 suitable angles of handwheel of rotation puller bolt 6, puller bolt 6 is outwards withdrawed from, saw cramp 3 under the effect of flexure strip 8 forward and move up, insert the groove of saw blade 1 installation position to saw cramp 3 and saw cramp shell 4 rear walls this moment, unclamp handwheel 61 then, because the active force of flexure strip 8 is less than the active force of torsion spring 7; Under the effect of torsion spring 7, saw cramp 3 is promoted to make saw blade 1 clamped by puller bolt 6 backward, ejector spring 9 promotes saw cramp 3 downwards also makes saw blade 1 clamped, simultaneously because the groove on saw cramp 3 and saw cramp shell 4 rear walls has flaring opening, make saw blade 1 thickness when being not less than the bottom land width, saw blade 1 still can be positioned at the geometric center of groove.
In addition, saw blade 1 is when installing the back use, when saw blade 1 is subjected to downward active force in working order, saw blade 1 has one to drive the trend that saw cramp 3 moves downward, because being used to run through the hole of saw cramp pin 5 on the saw cramp 3 is the slotted hole that has the inclined-plane, saw cramp 3 then can be subjected to a pressure backward as if moving downward under the effect of saw cramp pin 5, thereby it is tighter that saw blade 1 is held; The frontal plane of saw cramp 3 has along last to following outward-dipping ramp structure, and such ramp structure is that to make saw cramp 3 be subjected to the resistance of puller bolt 6 when moving downward littler.
When needs are changed saw blade 1, same as long as 61 1 suitable angles of handwheel of rotation puller bolt 6, puller bolt 6 is outwards withdrawed from, saw cramp 3 under the effect of flexure strip 8 and ejector spring 9 forward and move down, unclamp saw blade 1 this moment, and saw blade 1 is ejected under the effect of the little elastic claw 81 on the flexure strip 8.
In a word, main inventive point of the present utility model is that this electric jig saw saw blade fast fixture has the saw cramp that is built in the saw cramp shell, and saw cramp and saw cramp shell are provided with the groove that is used to insert saw blade, utilizes moving and the fastening saw blade that clamps of saw cramp.
Claims (4)
1. electric jig saw saw blade fast fixture, be that saw blade (1) is installed in device on the sweep-saw reciprocating lever (2), it is characterized in that: described reciprocating lever (2) external part downwards is a flat bar, the device of described installation saw blade (1) comprises saw cramp (3), saw cramp shell (4), saw cramp pin (5), saw cramp shell (4) is fixed on the lower front end of reciprocating lever (2), saw cramp shell (4) after fixing has a die cavity that Open Side Down, relative with opening in the die cavity is diapire, also have antetheca and rear wall by the sweep-saw direction of motion in the die cavity, both sides be sidewall, saw cramp (3) is built in the die cavity, the rear wall of saw cramp shell (4) is provided with the groove of vertical direction, the position that saw cramp (3) is gone up corresponding to the rear wall groove also is provided with vertical groove, both grooves can be allowed the insertion of saw blade (1) installation position, the moving forward and backward of saw cramp (3) can be realized unclamping and clamp saw blade (1), saw cramp pin (5) is in the hole of saw cramp (3) and saw cramp shell (4) sidewall, and saw cramp shell (4) is provided with and is used to regulate the device that saw cramp (3) moves forward and backward and locks.
2. electric jig saw saw blade fast fixture according to claim 1, it is characterized in that: the device that described adjusting saw cramp (3) moves forward and backward and locks comprises the puller bolt (6) that is arranged on saw cramp shell (4) antetheca, the front end face of puller bolt (6) contacts with the frontal plane of saw cramp (3), the outer end of puller bolt (6) has handwheel (61), be with on the puller bolt (6) to impel puller bolt (6) thereby screw in and prop up saw cramp (3), make saw cramp compress the torsion spring (7) of saw cutter, be provided with the flexure strip (8) that promotes saw cramp (3) reach mutually nearby at saw cramp (3) and saw cramp shell (4) rear wall, flexure strip (8) to the motive force of saw cramp (3) less than the pressure of puller bolt (6) to saw cramp (3); Be provided with the ejector spring (9) that saw cramp (3) is promoted between the diapire of described saw cramp (3) and saw cramp shell (4) downwards; The slotted hole of the hole of running through saw cramp pin (5) on the described saw cramp (3) for being obliquely installed up and down, the center of slotted hole lower end is than the rear wall of the more close saw cramp shell in the center of upper end (4), and the frontal plane of described saw cramp (3) has along last outward-dipping ramp structure extremely down.
3. electric jig saw saw blade fast fixture according to claim 2, it is characterized in that: described flexure strip (8) while be being positioned between saw cramp (3) and saw cramp shell (4) rear wall, being positioned between saw cramp (3) and saw cramp shell (4) diapire of a kind of right-angle structure, right angle, flexure strip (8) be positioned at limit between saw cramp (3) and saw cramp shell (4) diapire be provided with withstand on saw blade (1) end also can be with the little elastic claw (81) of the downward promotion of saw blade (1).
4. according to claim 2 or 3 described electric jig saw saw blade fast fixtures, it is characterized in that: the bottom land wide of groove of allowing the insertion of saw blade (1) installation position on described saw cramp shell (4) and the saw cramp (3) is 0.8 ~ 1.2 millimeter, and flute profile is a horn opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200373695U CN201023150Y (en) | 2007-05-08 | 2007-05-08 | Electric lig saw blade fast-assembling fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200373695U CN201023150Y (en) | 2007-05-08 | 2007-05-08 | Electric lig saw blade fast-assembling fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201023150Y true CN201023150Y (en) | 2008-02-20 |
Family
ID=39097005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200373695U Expired - Fee Related CN201023150Y (en) | 2007-05-08 | 2007-05-08 | Electric lig saw blade fast-assembling fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201023150Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949920A (en) * | 2014-05-26 | 2014-07-30 | 苏州铉动三维空间科技有限公司 | Positioning clamp |
| CN105171474A (en) * | 2015-09-30 | 2015-12-23 | 河南飞龙(芜湖)汽车零部件有限公司 | Clamp for milling end face of automobile water pump cover |
| CN106736658A (en) * | 2017-03-11 | 2017-05-31 | 温智韬 | Tension clamps fast assembling-disassembling multi-grab |
| CN109954937A (en) * | 2017-12-14 | 2019-07-02 | 博世电动工具（中国）有限公司 | Saw blade Fast clamping device and reciprocating saw for reciprocating saw |
-
2007
- 2007-05-08 CN CNU2007200373695U patent/CN201023150Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949920A (en) * | 2014-05-26 | 2014-07-30 | 苏州铉动三维空间科技有限公司 | Positioning clamp |
| CN105171474A (en) * | 2015-09-30 | 2015-12-23 | 河南飞龙(芜湖)汽车零部件有限公司 | Clamp for milling end face of automobile water pump cover |
| CN105171474B (en) * | 2015-09-30 | 2017-07-28 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of auto pump lid end face milling fixture |
| CN106736658A (en) * | 2017-03-11 | 2017-05-31 | 温智韬 | Tension clamps fast assembling-disassembling multi-grab |
| CN106736658B (en) * | 2017-03-11 | 2018-12-21 | 温智韬 | Tension clamps fast assembling-disassembling multi-grab |
| CN109954937A (en) * | 2017-12-14 | 2019-07-02 | 博世电动工具（中国）有限公司 | Saw blade Fast clamping device and reciprocating saw for reciprocating saw |
| CN109954937B (en) * | 2017-12-14 | 2022-11-08 | 博世电动工具（中国）有限公司 | Saw blade quick clamping device for reciprocating saw and reciprocating saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080220 Termination date: 20100508 |