CN102019464B - Cutting machine - Google Patents
Cutting machine Download PDFInfo
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- CN102019464B CN102019464B CN 200910178066 CN200910178066A CN102019464B CN 102019464 B CN102019464 B CN 102019464B CN 200910178066 CN200910178066 CN 200910178066 CN 200910178066 A CN200910178066 A CN 200910178066A CN 102019464 B CN102019464 B CN 102019464B
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- saw blade
- cutting machine
- connecting element
- support
- flexible connecting
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- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000002360 preparation method Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 6
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to a cutting machine which comprises a workbench with an opening, a support for supporting the workbench, a cutting mechanism and an operable saw blade clamping and releasing mechanism, wherein the workbench comprises an upper surface for supporting a workpiece; the cutting mechanism is fixed on the lower surface of the workbench, is accommodated in the support, and comprises amotor for outputting rotary motion, a reciprocating rod for driving a saw blade which penetrates through the opening to move in a reciprocating manner and a motion conversion mechanism converting the rotation of the motor to the reciprocating motion of the reciprocating rod; and the operable saw blade clamping and releasing mechanism is used for clamping and releasing the saw blade and comprises an operable flexible connecting element for driving a clamping head used for fixing the saw blade to move between the positions of clamping the saw blade and releasing the saw blade. Compared with the prior art, the invention has the advantages that the flexible connecting element is arranged, thus the saw blade clamping and releasing mechanism can clamp and release the saw blade in the positions which can be touched easily by an operator, the operator can conveniently replace the saw blade without bending the waist or groping with the hand, and the operation is convenient and labor-saving.
Description
Technical Field
The invention relates to a cutting machine, in particular to a cutting machine with a reciprocating cutting mechanism.
Background
The conventional jig saw can perform cutting of various curved and straight lines, and thus is widely used for processing of plate materials made of various materials. Generally, a jigsaw includes a motor, a housing accommodating the motor, a motion converting mechanism accommodated in a gear box housing, driven by the motor, and converting a rotational motion of the motor into a reciprocating motion of a reciprocating lever, a saw blade connected to the reciprocating lever via a chuck device, and a base plate supporting a body of the jigsaw on a surface of a workpiece.
To expand the application of the jigsaw, those skilled in the art invert it onto the lower surface of a table for cutting when it is desired to move the workpiece. However, the existing inverted jigsaw is usually a jig saw which is directly turned over from the market and is fixed by a workbench with a certain connecting structure. When the operator replaces the saw blade in the using process of the inversion jig saw, the saw blade chuck of the jig saw is of a self-contained structure of the jig saw, and the saw blade chuck and the body of the jig saw are inverted below the workbench. The operator needs to reach under the table to operate the clamp release mechanism to enable the blade to be replaced. The operator needs to bend over or fumble with his hand in order to find the release mechanism of the collet. The replacement process of the saw blade is inconvenient, and the operation wastes time and labor.
Disclosure of Invention
The invention provides a cutting machine convenient to operate.
In order to achieve the purpose, the technical scheme of the invention is as follows: a cutting machine comprising: a table having an opening, including an upper surface for supporting a workpiece; a support for supporting the worktable; the cutting mechanism is fixed on the lower surface of the workbench and accommodated in the support and comprises a motor for outputting rotary motion, a reciprocating rod for driving the saw blade passing through the opening to reciprocate and a motion conversion mechanism for converting the rotary drive of the motor into the reciprocating motion of the reciprocating rod; and a blade clamp release mechanism operable to clamp and release the blade; the blade clamping and releasing mechanism includes a flexible connecting member operable to move a clamp holding the saw blade between positions for clamping the saw blade and for releasing the saw blade.
Compared with the prior art, the saw blade clamping and releasing mechanism can clamp and release the saw blade at the position which is easy to be touched by an operator by arranging the flexible connecting element, the operator can conveniently replace the saw blade without bending down or groping by hands, and the operation is convenient and labor-saving.
Preferably, the flexible connecting element is a steel wire. The steel wire has certain rigidity and certain toughness, and is favorable for enabling the operating device of the saw blade clamping and releasing mechanism to be in a position convenient for an operator to touch.
Preferably, a foot control member connected with the steel wire is arranged below the workbench. Therefore, the operator can control the saw blade clamping and releasing mechanism in a foot-stepping mode, and the situation that the operator bends down to operate is avoided.
Preferably, the cartridge includes a rotating sleeve rotatable about the reciprocating rod axis, the flexible connecting element converting rotation of the rotating sleeve into linear movement of the foot control. The pedal control moves linearly, the operator can apply force easily, and the actions of clamping and releasing the saw blade are simple.
Preferably, a corner bracket rotating relative to the axis of the reciprocating rod is arranged between the flexible connecting element and the chuck, one end of the flexible connecting element is connected with the corner bracket, and the other end of the flexible connecting element is connected with the pedal control part. Through the arrangement of the corner bracket, the movement of the rotating sleeve is more easily converted into the movement of the pedal control piece, and the chuck is more easily ensured to be in a completely released or clamped state.
Preferably, the corner bracket comprises a substantially C-shaped base, one end of the base is provided with a connecting pivot, the other end of the base is provided with a vertically extending pushing upright, and a connecting lug is arranged between the two ends of the base, and the steel wire is arranged through the connecting lug. The pushing upright post pushes the chuck rotating sleeve to rotate, and the whole corner bracket rotates around the connecting pivot shaft, so that the steel wire can pull the corner bracket to move.
Preferably, the cutting machine further comprises a support frame having a support surface and at least three support legs, and the foot control member is provided on the underside of one of the support legs and is axially movable relative to the support leg. The support of cutting machine is placed on the holding surface of support, and the supporting leg props up the cutting machine, makes the saw blade be in the position that suitable operator operated, conveniently presss from both sides tight release mechanism with foot control saw blade simultaneously.
Preferably, the steel wire penetrates through the supporting surface and is at least partially accommodated in the supporting leg. The steel wire is accommodated in the supporting leg and is not exposed outside, so that the cutting machine is compact in structure, and the steel wire is not easy to break and deform due to misoperation.
Preferably, the pedal control member comprises a pedal plate and a moving block accommodated in the support leg, and the pedal plate is pivotally connected with the moving block. The pedal can pivot relative to the moving block, so that the pedal is folded when the saw blade clamping and releasing operation is not needed, and misoperation is avoided.
Preferably, an elastic element accommodated in the support leg is arranged between the pedal control piece and the moving block and presses the moving block to move towards the position of releasing the steel wire. Thereby, the blade clamp release mechanism is normally held in the clamping position.
Drawings
The invention is further described with reference to the following figures and embodiments.
Fig. 1 is a perspective view of the cutting machine of the present invention.
Fig. 2 is a perspective view of the cutting machine of the present invention with the table and portions of the holder and support removed and the blade clamp release mechanism in a visible state.
Fig. 3 is a partially exploded perspective view of the blade clamp release mechanism of the cutting machine of the present invention.
Wherein,
10 cutting machine 33 dust suction pipe 54 reciprocating rod
11 left shroud 55 reciprocating bar axis of table 34
Motion conversion mechanism for right shield plate 56 of 12 shield assembly 35
13 platen assembly 36 extension housing 57 support
14 support 37 end cover 58 support leg
15 cutting mechanism 38 shroud clamping mechanism 59 support surface
16 saw blade 39 clamping knob 60 steel wire
17 corner bracket of motor 40 bracket 61
18 motor housing 41 extension arm 62 foot pedal
19 workpiece 42 guide wheel 63 pivot
20 opening 43 pressure plate 64 moving block
21 guard plate 44 adjusting wrench 65 spring
22 slot 45 base 66 end cap
23 upper surface 46 body 67 channel
24 lower surfaces 47a, 47b, 47c, 47d support wall 68 clamps
26a, 26b, 26c, 26d side walls 48 drawer 69 swivel
28 longitudinal T-shaped slot 49 control panel 70 saw blade clamping release mechanism
29 bottom 50 main switch 71 base
30 horizontal T-shaped groove 51 speed regulation switch 72 pivot
31 through hole 52 reduction box shell 73 pushing upright post
32 shroud body 53 reciprocating rod receiving hole 74 attachment lug
Detailed Description
Referring to fig. 1-2, a cutting machine 10 includes a table 11, a support 14 for supporting the table 11, a shield assembly 12 disposed on an upper surface 23 of the table 11, a platen assembly 13 adjustably coupled to the shield assembly 12 for applying a compressive force to a workpiece, and a cutting mechanism 15 disposed on a lower surface 24 of the table 11.
The left side in fig. 1 is defined as the front of the cutter 10 and the right side is defined as the rear of the cutter 10, according to the usual manner of use of such cutters by an operator. The table 11 has an upper surface 23, a lower surface 24, and side walls 26a, 26b, 26c, 26d extending perpendicularly with respect to the upper and lower surfaces. The upper surface 23 and the side walls 26a, 26b, 26c, 26d form the outer surface of the table 4. Opening 20 opens onto table 11, is located at the front of cutting machine 10, and extends from upper surface 23 to lower surface 24. The saw blade 16 passes through the opening 20 from bottom to top. The workpiece 19 may be placed on the upper surface 23 of the table 11 and moved along the upper surface 23 to be cut by the saw blade 16. The opening 20 is substantially square in shape. A square blade guard 21 is fitted into the opening 20 to prevent dust from entering the interior of the cutter to some extent, and, when an abnormal condition such as breakage of the blade 16 occurs, the guard 21 is removed and the operator removes the blade 16 therefrom. The guard 21 has a slot 22 formed in the middle thereof, and the saw blade 16 can pass through the slot 22.
The worktable 11 is also provided with a longitudinal T-shaped groove 28 and a transverse T-shaped groove 30. The longitudinal T-shaped slot 28 extends from the front of the table 11 to the rear of the table 11. The transverse T-shaped slot 30 is located on the front side of the opening 20 and intersects the longitudinal T-shaped slot 28, thereby dividing the upper surface 23 of the entire table 11 into four sections. The longitudinal T-shaped groove 28 and the transverse T-shaped groove 30 extend from one side wall 26a, 26b of the table 11 to the other side wall 26c, 26d disposed in parallel. The cross sections of the longitudinal T-shaped groove 28 and the transverse T-shaped groove 30 are the same, and a plurality of through holes 31 arranged at intervals along the extending direction of the T-shaped grooves are formed in the bottoms 29 of the longitudinal T-shaped groove 28 and the transverse T-shaped groove 30.
The shield assembly 12 includes a bracket 40 removably attached to the table 11, an extension arm 41 disposed perpendicular to the bracket, and an extension hood 36, left and right shield panels 34, 35 and shield body 32 attached thereto. A shroud clamping mechanism 38, including a clamping knob 39, adjustably secures the extension shroud 36 to an extension arm 41. Guide wheels 42 are provided below the blade body 31 to guide the reciprocating motion of the saw blade 16. A dust suction pipe 33 is arranged above the shield main body 32 and is externally connected with a dust collector to suck out dust generated by cutting. The left and right shield plates are connected to the shield main body 32 by pin shafts.
The pressing plate assembly 13 is disposed between the shield assembly 12 and the table 11, and the height of the pressing plate 43 is adjusted relative to the table 11 by rotating the adjusting wrench 44.
The support 14 comprises a base 45 having a plurality of support feet and a body 46 having support walls 47a, 47b, 47c, 47 d. A drawer 48 is provided at the front of the holder 14 for collecting dust. A control panel 49 is provided on the front support wall 47a of the main body 46, and houses a main switch 50 and a speed control switch 51 of the cutter. The support walls 47a, 47b, 47c, 47d form the outer surface of the holder 14. In the present embodiment, the support 14 has a support wall, and those skilled in the art will appreciate that the worktable and the cutting mechanism can be supported by only a plurality of support legs. Therefore, the support in the present invention may be a bracket formed of a support leg. The outer surface of the corresponding support is the outer wall of the supporting leg.
The cutting mechanism 15 is fixed to the lower surface 24 of the table 11 and accommodated in the holder 14, and includes a motor 17 for outputting a rotational motion, a reciprocating rod 54 for driving the saw blade 16 passing through the opening 20 to reciprocate, and a motion converting mechanism 56 for converting the rotational drive of the motor 17 into the reciprocating motion of the reciprocating rod 54; and a blade clamp release mechanism 70 operable to clamp and release the blade 16.
Referring also to fig. 3, blade clamp release mechanism 70 includes a clamp 68 for securing the blade, a corner bracket 61 that pivots relative to reciprocating rod 54, and a flexible connecting element 60 connected to corner bracket 61. Flexible connecting element 60 is operable to move collet 68 between positions for clamping the blade and releasing the blade. Those skilled in the art will appreciate that the blade clamping and release mechanism 70 disclosed herein is but one of many types of chuck configurations, and that other types of chucks, such as a wrench for moving a clamping column along a diagonal slot to clamp and release a blade, may be used with the present invention with only minor changes in detail. The collet 68 in this embodiment is of a collet construction having a rotating sleeve 69 that rotates relative to the reciprocating rod axis 55. The rotating sleeve 69 has an opening for receiving the saw blade 16 and is rotated by a predetermined angle after the saw blade 16 is inserted into the opening so that the shoulder of the saw blade 16 abuts against the inner end surface of the rotating sleeve 69 and does not fall out.
In this embodiment, the flexible connecting element 60 is a steel wire. The steel wire has certain rigidity and certain toughness, and is favorable for enabling the operating device of the saw blade clamping and releasing mechanism to be in a position convenient for an operator to touch. The person skilled in the art will readily appreciate that the flexible connecting element may be other metal wires or high strength plastic strings, rubber bands, etc. than steel wires. The flexible element can be bent, has high elastic modulus and is not easy to break. The flexible connecting element 60 may also be tensioned by a tensioning mechanism (not shown). Generally, the flexible connecting element 60 can be supported and moved with only a certain supporting surface. In order to enable the degree of tensioning of the flexible connecting element 60 to be adjusted and controlled, it is conceivable to provide a roller on a mount or bracket supporting the flexible connecting element, a portion of the flexible connecting element being in contact with an annular groove on the roller, and the support point of the roller being adjustable relative to each other, thereby adjusting the degree of tensioning of the flexible connecting element.
In this embodiment, a foot control member connected to the wire 60 is provided below the table 11. Thus, the operator can control the blade clamping and releasing mechanism 70 in a foot-stepping mode, and the situation that the operator bends down is avoided. The collet 68 in this embodiment includes a rotating sleeve 69 rotatable about the reciprocating rod axis 55, and the flexible connecting element wire 60 converts the rotation of the rotating sleeve 69 into linear movement of the foot control. The pedal control moves linearly, the operator can apply force easily, and the actions of clamping and releasing the saw blade are simple.
In order to ensure that the flexible connecting element 60 can drive the collet 68 to move in a rotating manner, the invention provides an angle bracket 61 rotating relative to the reciprocating rod axis 55 between the flexible connecting element 60 and the collet, one end of the flexible connecting element 60 is connected with the angle bracket 61, and the other end of the flexible connecting element 60 is connected with the foot control. By providing a corner bracket, the movement of the sleeve 69 is more easily translated into movement of the foot control member, and it is easier to ensure that the collets 68 are in a fully released or clamped condition. In this embodiment, the corner bracket 61 includes a substantially C-shaped base portion 71, one end of the base portion 71 has a connecting pivot 72, the other end of the base portion 71 is provided with a vertically extending pushing pillar 73, and a connecting lug 74 is provided between both ends of the base portion 71, and the steel wire 60 is inserted through the connecting lug 74. The pushing post 73 pushes the collet chuck sleeve 69 to rotate, and the entire corner bracket 71 rotates around the connecting pivot 72, ensuring that the wire 60 can pull the corner bracket 61 to move.
In this embodiment, the wire 60 is received in the support leg 58 at least partially through the support surface 59. Therefore, the flexible connecting element does not exist outside the whole cutting machine, the cutting machine is compact in structure, and the steel wire is not easy to break and deform due to misoperation.
The foot control member includes a foot pedal 62 and a movable block 64 received in the support leg 58. The pedal plate 62 is connected to the moving block 64 via a pivot shaft 63 so that the pedal plate 62 can pivot relative to the moving block 64. When the blade clamping and releasing operation is not required after the blade replacement process is completed, the foot plate 62 can be pivoted relative to the moving block 64 to a position in which it abuts against the outer wall of the support leg 58. At this time, the foot pedal 62 cannot be operated, and the situation that the operator accidentally steps on the foot pedal to release the saw blade is avoided.
An elastic element 65 accommodated in the support leg 58 is provided between the pedal 62 and the moving block 64, and urges the moving block 64 to move toward the position where the wire 60 is released. Thus, the blade clamp release mechanism 70 is normally held in the clamped position. Meanwhile, the end of the support leg 58 is provided with an end cap 66, one end of the spring abuts against the end face of the moving block 64, and the other end abuts against the inner end face of the end cap 66. End cap 66 is threadably connected to support leg 58. In this embodiment, the elastic member 65 is a compression spring. Those skilled in the art will appreciate that the resilient member 65 may take other forms, such as a leaf spring, a tension spring, etc., and will not be described in detail herein. Any other changes and substitutions made based on the present invention are within the scope of the present invention.
Claims (9)
1. A cutting machine comprising:
a table having an opening, including an upper surface for supporting a workpiece;
a support for supporting the worktable;
a cutting mechanism fixed on the lower surface of the workbench and contained in the support, comprising
A motor for outputting a rotational motion to the rotary body,
a reciprocating rod driving the saw blade passing through the opening to reciprocate,
a motion conversion mechanism that converts rotational drive of the motor into reciprocating motion of the reciprocating rod; and
a blade clamp release mechanism operable to clamp and release the blade;
it is characterized in that the preparation method is characterized in that,
the saw blade clamping and releasing mechanism comprises a flexible connecting element which can be operated to drive a chuck for fixing the saw blade to move between the positions for clamping the saw blade and releasing the saw blade, and a pedal control piece connected with the flexible connecting element is arranged below the workbench.
2. The cutting machine according to claim 1, characterized in that: the flexible connecting element is a steel wire.
3. The cutting machine according to claim 2, characterized in that: the chuck includes a rotating sleeve rotatable about a reciprocating rod axis, and the flexible connecting element converts rotation of the rotating sleeve into linear movement of the foot control member.
4. The cutting machine according to claim 3, characterized in that: and a corner bracket which rotates relative to the axis of the reciprocating rod is arranged between the flexible connecting element and the chuck, one end of the flexible connecting element is connected with the corner bracket, and the other end of the flexible connecting element is connected with the pedal control part.
5. The cutting machine according to claim 4, characterized in that: the corner bracket comprises a substantially C-shaped base part, one end of the base part is provided with a connecting pivot, the other end of the base part is provided with a vertically extending pushing upright post, and a connecting lug is arranged between the two ends of the base part, and the steel wire penetrates through the connecting lug.
6. The cutting machine according to claim 2, characterized in that: the cutting machine further comprises a support frame with a support surface and at least three support legs, and the pedal control piece is arranged on the lower side of one of the support legs and can move axially relative to the support legs.
7. The cutting machine according to claim 6, characterized in that: the steel wire penetrates through the supporting surface and is at least partially accommodated in the supporting leg.
8. The cutting machine according to claim 7, characterized in that: the pedal control piece comprises a pedal plate and a moving block accommodated in the supporting leg, and the pedal plate is in pivot connection with the moving block.
9. The cutting machine according to claim 8, characterized in that: an elastic element accommodated in the supporting leg is arranged between the pedal control piece and the moving block and is pressed against the moving block to move towards the position of releasing the steel wire.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910178066 CN102019464B (en) | 2009-09-22 | 2009-09-22 | Cutting machine |
| US13/389,425 US9067267B2 (en) | 2009-08-07 | 2010-08-09 | Cutting machine with blade clamp |
| PCT/CN2010/075798 WO2011015158A1 (en) | 2009-08-07 | 2010-08-09 | Cutting machine |
| EP10806062.5A EP2463048B1 (en) | 2009-08-07 | 2010-08-09 | Cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910178066 CN102019464B (en) | 2009-09-22 | 2009-09-22 | Cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102019464A CN102019464A (en) | 2011-04-20 |
| CN102019464B true CN102019464B (en) | 2013-03-27 |
Family
ID=43861468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910178066 Expired - Fee Related CN102019464B (en) | 2009-08-07 | 2009-09-22 | Cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102019464B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773554B (en) * | 2011-05-13 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Cutting machine |
| CN113263220B (en) * | 2021-06-04 | 2022-04-22 | 东莞市益松数控科技有限公司 | Saw blade clamping guide device and saw blade clamping guide method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267498A (en) * | 1991-08-20 | 1993-12-07 | Ryobi Limited | Fret-saw machine |
| DE19504432A1 (en) * | 1994-02-10 | 1995-08-17 | Makita Corp | Hand held powered jigsaw |
| CN1142999A (en) * | 1995-06-10 | 1997-02-19 | 星蒂拉公开股份有限公司 | Saw for caving hole |
| CN201227702Y (en) * | 2008-07-25 | 2009-04-29 | 苏州宝时得电动工具有限公司 | Reciprocating saw |
-
2009
- 2009-09-22 CN CN 200910178066 patent/CN102019464B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267498A (en) * | 1991-08-20 | 1993-12-07 | Ryobi Limited | Fret-saw machine |
| DE19504432A1 (en) * | 1994-02-10 | 1995-08-17 | Makita Corp | Hand held powered jigsaw |
| CN1142999A (en) * | 1995-06-10 | 1997-02-19 | 星蒂拉公开股份有限公司 | Saw for caving hole |
| CN201227702Y (en) * | 2008-07-25 | 2009-04-29 | 苏州宝时得电动工具有限公司 | Reciprocating saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102019464A (en) | 2011-04-20 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20180922 |