CN104476604B - The bar hold-down gear of a kind of bar cutting machine - Google Patents
The bar hold-down gear of a kind of bar cutting machine Download PDFInfo
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- CN104476604B CN104476604B CN201410733683.1A CN201410733683A CN104476604B CN 104476604 B CN104476604 B CN 104476604B CN 201410733683 A CN201410733683 A CN 201410733683A CN 104476604 B CN104476604 B CN 104476604B
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Abstract
The present invention provides the bar hold-down gear of a kind of bar cutting machine, belongs to field of mechanical technique. it solve the problem that the cutting accuracy of existing bar cutting is not high. this bar hold-down gear comprises at least one air cylinder support being fixed on base plate, there is between air cylinder support and base plate the groove consistent with bar feedstock direction, each air cylinder support is all fixed with a compression cylinder, compression cylinder comprises cylinder body and piston, one end of piston is fixed with piston rod, the piston rod of compression cylinder is perpendicular to base plate and and stretches in groove down, compression cylinder also comprises the governor lever that the other end from piston stretches out cylinder body, governor lever and piston axial location, the compression block that can slide up and down it is provided with along groove in the groove of air cylinder support, compress the fixing union lever with internal thread on block, compress block be positioned at piston rod end and by the location that is threaded, when governor lever rotates compress block near or away from cylinder body, the end that governor lever stretches out cylinder body is also fixed with handwheel.
Description
Technical field
The invention belongs to field of mechanical technique, it relates to the bar hold-down gear of a kind of bar cutting machine, particularly a kind of bar cutting machine.
Background technology
Bar cutting machine is used to a kind of blanking machine tool carrying out cutting off processing to bar, forms primarily of cutting unit, feeding device, hold-down gear and two-position controller. Wherein, hold-down gear is generally made up of compression cylinder, support and compression block. At cutting tool in cutting bar process, realize being fixed of bar by control the flexible of compression cylinder piston rod.
As the applicant had once designed and developed the cutting unit of a kind of bar cutting machine, and apply for Chinese patent [application number: 200620108106.4; Authorization Notice No.: CN2000957610Y] disclose the cutting unit of a kind of bar cutting machine, it is located on the base plate of cutting machine, the blade comprise motor, being connected by transmission rig with motor, transmission rig and pushing mechanism are connected, pushing mechanism is by pilot circuit control, cutting machine tapping channel is provided with can the inductor block of perception billet position, inductor block is connected in described pilot circuit and controls pushing mechanism action; Also being provided with vertical cylinder and horizontal air cylinder on base plate, bar is fixed by vertical cylinder and horizontal air cylinder.
But, there is following problem in the cylinder that above-mentioned control bar is fixed: above-mentioned cylinder is the flexible action compressing or loosening realizing bar by control piston bar, owing to the stroke of piston rod is fixed, so the stroke between the compression block arranged on piston rod and base plate is fixed, the spacing that also cannot adjust bar according to the quantity of bar and diameter and compress between block exactly. When the distance compressing block starting position and bar is bigger, the process that compression block presses down easily causes bar that vibrations skew occurs, thus affects the cutting accuracy of bar.
Summary of the invention
It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that the bar hold-down gear of a kind of bar cutting machine, the technical problem that the present invention solves how to improve the cutting accuracy of bar cutting.
The object of the present invention realizes by following technical proposal: the bar hold-down gear of a kind of bar cutting machine, described bar cutting machine comprises base plate, it is characterized in that, this bar hold-down gear comprises at least one air cylinder support being fixed on base plate, there is between described air cylinder support and base plate the groove consistent with bar feedstock direction, each air cylinder support is all fixed with a compression cylinder, described compression cylinder comprises cylinder body and piston, one end of described piston is fixed with piston rod, the piston rod of described compression cylinder is perpendicular to base plate and and stretches in groove down, described compression cylinder also comprises the governor lever that the other end from piston stretches out cylinder body, described governor lever and piston axial location, the compression block that can slide up and down it is provided with along groove in the groove of described air cylinder support, the fixing union lever with internal thread on described compression block, described compression block be positioned at piston rod end and by the location that is threaded, when governor lever rotates compress block near or away from cylinder body, the end that described governor lever stretches out cylinder body is also fixed with handwheel.
The principle of work of the bar hold-down gear of this bar cutting machine is as follows: owing to the stroke of the relative compression cylinder body of piston rod is fixed, in order to enable the distance between compression block and base plate adjust according to the quantity of bar and diameter, by arranging screw connection structure on compression block, such union lever just can utilize helicitic texture make compression block along groove slide up and down near or away from cylinder body so that the distance compressed between block and base plate can adjust. When compression cylinder is in relaxation state, according to the quantity of bar and diameter, block circumference location will be compressed, by the handwheel being fixed on governor lever, the spacing compressed between block and bar is adjusted, makes the distance that compression block and bar remain suitable, and regulate simple and convenient. Thus avoiding owing to the spacing compressed between block and bar is relatively big in compaction process, compression block impacts bar in the process of decline and causes bar to produce beat and offset, and then improves the cutting accuracy of bar cutting.
In the bar hold-down gear of above-mentioned bar cutting machine, described governor lever is fixed on one end of piston, and the piston rod of the described piston the other end has outside screw, and described union lever and piston rod thread connect. Governor lever rotates and drives piston rotation, thus makes piston rod also concomitant rotation.
Alternatively, in the bar hold-down gear of above-mentioned bar cutting machine, described piston rod is the tubular structure of hollow, described piston correspondence position has and the resigning hole that hole in piston rod is connected, described governor lever has the location shaft shoulder, described governor lever is through hole in resigning hole and piston rod and passes piston rod, the described location shaft shoulder is resisted against on piston, described governor lever is located by jump ring and piston rod, the part that described governor lever passes piston rod has outside screw, and described union lever and governor lever are threaded. Directly it is threaded with the union lever compressed on block by governor lever, it is convenient to processing and the assembling of governor lever.
In the bar hold-down gear of above-mentioned bar cutting machine, described air cylinder support comprises the tabular installation portion being parallel to base plate, two ends, described installation portion all have the tabular connection section being perpendicular to base plate, the bottom in described installation portion has flange, described flange is fixed by screws on base plate, and described compression cylinder is fixed in installation portion.The groove that the tabular connection section at two ends, installation portion is formed can play the effect of guiding, is conducive to improving the cutting accuracy of bar.
As preferably, in the bar hold-down gear of above-mentioned bar cutting machine, described compression block is square, and two sides of described compression block and the interior side of connection section are parallel to each other, the distance between two described connection sections equal or slightly larger than compress block width. Like this, just can be limited the rotation compressing block by connection section, but not affect the up and down motion compressing block, facilitate adjustment mechanism to adjust, be conducive to improving the cutting accuracy of bar.
As further preferably, in the bar hold-down gear of above-mentioned bar cutting machine, the bottom of described compression block is parallel to plate upper surface. The bottom compressing block is parallel with base plate, in time compressing block and press down, it is possible to ensure that bar is subject to the snap-in force of vertical base plate, avoid bar and be subject to the component of horizontal direction and offset, thus ensure that compression effect, and then ensure that the cutting accuracy of bar.
As further preferably, in the bar hold-down gear of above-mentioned bar cutting machine, described connection section is parallel to the feedstock direction of bar. Connection section plays the effect of guiding, the direction of bar and the direction of charging is consistent, thus ensure that the cutting accuracy of bar.
As preferably, in the bar hold-down gear of above-mentioned bar cutting machine, the quantity of described air cylinder support is two, and described air cylinder support lays respectively at the two ends of base plate and connection section position corresponding to two air cylinder supports on the same line. By arranging two compression cylinders, 2 positions of bar are compressed simultaneously, so that bar is located more stable in cutting process, be conducive to improving the cutting accuracy of bar.
As preferably, in the bar hold-down gear of above-mentioned bar cutting machine, described handwheel having rocking bar. Make handwheel control convenient by rocker structure, thus quickly and accurately compression spacing is adjusted, and then be conducive to improve the cutting accuracy of bar cutting.
Compared with prior art, the bar hold-down gear of this bar cutting machine has the following advantages: when compression cylinder is in relaxation state, quantity according to bar and diameter, this bar hold-down gear can adjust the gap compressed between block and bar, thus avoid when compression block presses down and cause bar beat or offset, make bar locate in cutting process more firm simultaneously, thus improve the cutting accuracy of bar.
Accompanying drawing explanation
Fig. 1 is the structural representation in this bar cutting machine direction.
Fig. 2 is the structural representation of bar hold-down gear in the present embodiment one.
Fig. 3 is the structural representation in another direction of this bar cutting machine.
Fig. 4 is the local structure sectional view of compression cylinder in the present embodiment one.
Fig. 5 is the local structure sectional view of compression cylinder in the present embodiment two.
In figure, 1, base plate; 2, air cylinder support; 21, installation portion; 22, connection section; 23, flange; 3, groove; 4, compression cylinder; 41, cylinder body; 42, piston; 43, piston rod; 5, block is compressed; 6, union lever; 7, governor lever; 71, the shaft shoulder is located; 72, jump ring; 8, handwheel; 81, rocking bar.
Embodiment
The following is specific embodiments of the invention and by reference to the accompanying drawings, the technical scheme of the present invention is further described, but the present invention is not limited to these embodiments.
Embodiment one:
This bar cutting machine comprises base plate 1, and bar hold-down gear comprises air cylinder support 2, compression cylinder 4, compresses block 5, union lever 6, governor lever 7 and handwheel 8.
Specifically, as shown in Figure 1, the quantity of air cylinder support 2 is at least one, and air cylinder support 2 is fixed on base plate 1, has the groove 3 consistent with bar feedstock direction between air cylinder support 2 and base plate 1, and is all fixed with a compression cylinder 4 on each air cylinder support 2. Wherein, as shown in Figure 4, compression cylinder 4 comprises cylinder body 41 and piston 42, and piston rod 43 is fixed on one end of piston 42, and the piston rod 43 of compression cylinder 4 is perpendicular to base plate 1 and down and stretches in groove 3. The end of piston rod 43 is provided with and compresses block 5, compresses the union lever 6 arranging on block 5 and having internal thread, and union lever 6 is fixed on and compresses on block 5. Having outside screw on piston rod 43, piston rod 43 and union lever 6 are threaded.
Governor lever 7 is fixed on the other end of piston 42, and the end winding support that governor lever 7 stretches out cylinder body 41 has handwheel 8, and handwheel 8 has rocking bar 81, has the tapered transitional reduced gradually to handwheel 8 diameter by governor lever 7 between governor lever 7 and handwheel 8.
As shown in Figure 2, air cylinder support 2 comprises the tabular installation portion 21 being parallel to base plate 1, and compression cylinder 4 is fixed in installation portion 21. Two ends, installation portion 21 all have the tabular connection section 22 being perpendicular to base plate 1, and connection section 22 is parallel to the feedstock direction of bar, and the bottom in installation portion 21 has flange 23, and flange 23 is fixed by screws on base plate 1. Above-mentioned compression block 5 is square, and the interior side of two sides and the connection section 22 that compress block 5 is parallel to each other, and the distance between two connection sections 22 equals or slightly larger than the width of compression block 5, and the bottom compressing block 5 is parallel to base plate 1 upper surface.
As shown in Figure 3, the quantity of air cylinder support 2 is two, and connection section 22 position that air cylinder support 2 lays respectively at the two ends of base plate 1 and two air cylinder support 2 correspondences is on the same line.
The compaction process of this bar hold-down gear is as follows: in actual production process, difference according to processed bar diameter, before bar carries out cutting work, in order to make the cutting of bar more stable, by holding rocking bar 81, control handwheel 8 make compression block 5 near or away from base plate 1, calculate the diameter of bar, make the spacing between compression block 5 and bar keep optimum regime, thus complete the adjustment before compressing; Then, when the cutting work station that bar moves, control compression cylinder 4 works, thus completes the compression location of bar, and then improves the cutting accuracy of bar.
Embodiment two:
Technical scheme in the present embodiment and the technical scheme in embodiment one are substantially identical, difference is, as shown in Figure 5, in the present embodiment, piston rod 43 is the tubular structure of hollow, the resigning hole that piston 42 correspondence position has with hole in piston rod 43 is connected, governor lever 7 has the location shaft shoulder 71, governor lever 7 passes the interior hole of resigning hole and piston rod 43 and passes piston rod 43, the location shaft shoulder 71 is against on the piston 42, governor lever 7 is by jump ring 72 and piston rod 43 axial location, make piston 42, piston rod 43 and governor lever 7 are connected as a single entity, the part that governor lever 7 passes piston rod 43 has outside screw, union lever 22 and governor lever 7 are threaded. directly it is threaded with the union lever 6 compressed on block 5 by governor lever 7, it is convenient to processing and the assembling of governor lever 7.
Specific embodiment described herein is only to the present invention's spirit explanation for example. Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by those skilled in the art, but can't deviate the spirit of the present invention or surmount the scope that appended claims defines.
Although more employing the terms such as base plate 1, air cylinder support 2, installation portion 21, connection section 22, flange 23, groove 3, compression cylinder 4, cylinder body 41, piston 42, piston rod 43, compression block 5, union lever 6, governor lever 7, the location shaft shoulder 71, jump ring 72, handwheel 8, rocking bar 81 herein, but not getting rid of the possibility using other term.These terms are used to be only used to describe more easily and explain the essence of the present invention; They are construed to any a kind of additional restriction all disagree with the present invention's spirit.
Claims (9)
1. the bar hold-down gear of a bar cutting machine, described bar cutting machine comprises base plate (1), it is characterized in that, this bar hold-down gear comprises at least one air cylinder support (2) being fixed on base plate (1), there is between described air cylinder support (2) and base plate (1) groove (3) consistent with bar feedstock direction, each air cylinder support (2) is all fixed with a compression cylinder (4), described compression cylinder (4) comprises cylinder body (41) and piston (42), one end of described piston (42) is fixed with piston rod (43), the piston rod (43) of described compression cylinder (4) is perpendicular to base plate (1) and and stretches in groove (3) down, described compression cylinder (4) also comprises the governor lever (7) that the other end from piston (42) stretches out cylinder body (41), described governor lever (7) and piston (42) axial location, the compression block (5) that can slide up and down it is provided with along groove (3) in the groove (3) of described air cylinder support (2), the upper fixing union lever (6) with internal thread of described compression block (5), described compression block (5) be positioned at piston rod (43) end and by the location that is threaded, when governor lever (7) rotates compress block (5) near or away from cylinder body (41), the end that described governor lever (7) stretches out cylinder body (41) is also fixed with handwheel (8).
2. the bar hold-down gear of bar cutting machine according to claim 1, it is characterized in that, described governor lever (7) is fixed on one end of piston (42), having outside screw on the piston rod (43) of the described piston the other end, described union lever (6) and piston rod (43) are threaded.
3. the bar hold-down gear of bar cutting machine according to claim 1, it is characterized in that, the tubular structure that described piston rod (43) is hollow, the resigning hole that described piston (42) correspondence position has with piston rod (43) interior hole is connected, described governor lever has the location shaft shoulder on (7), described governor lever (7) is through resigning hole and piston rod (43) interior hole and passes piston rod (43), the described location shaft shoulder is resisted against on piston (42), described governor lever (7) is located by jump ring and piston rod (43), the part that described governor lever (7) passes piston rod (43) has outside screw, described union lever (6) and governor lever (7) are threaded.
4. the bar hold-down gear of bar cutting machine according to claim 1 or 2 or 3, it is characterized in that, described air cylinder support (2) comprises the tabular installation portion (21) being parallel to base plate (1), described installation portion (21) two ends all have the tabular connection section (22) being perpendicular to base plate (1), the bottom of described installation portion (21) has flange (23), described flange (23) is fixed by screws on base plate (1), and described compression cylinder (4) is fixed in installation portion (21).
5. the bar hold-down gear of bar cutting machine according to claim 4, it is characterized in that, described compression block (5) is square, two sides of described compression block (5) and the interior side of connection section (22) are parallel to each other, the distance between two described connection sections (22) equal or slightly larger than compress block (5) width.
6. the bar hold-down gear of bar cutting machine according to claim 5, it is characterised in that, the bottom of described compression block (5) is parallel to base plate (1) upper surface.
7. the bar hold-down gear of bar cutting machine according to claim 4, it is characterised in that, described connection section (22) is parallel to the feedstock direction of bar.
8. the bar hold-down gear of bar cutting machine according to claim 4, it is characterized in that, the quantity of described air cylinder support (2) is two, and described air cylinder support (2) lays respectively at the two ends of base plate (1) and connection section (22) position corresponding to two air cylinder supports (2) on the same line.
9. the bar hold-down gear of bar cutting machine according to claim 1 or 2 or 3, it is characterised in that, described handwheel (8) has rocking bar (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733683.1A CN104476604B (en) | 2014-12-04 | 2014-12-04 | The bar hold-down gear of a kind of bar cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733683.1A CN104476604B (en) | 2014-12-04 | 2014-12-04 | The bar hold-down gear of a kind of bar cutting machine |
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| Publication Number | Publication Date |
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| CN104476604A CN104476604A (en) | 2015-04-01 |
| CN104476604B true CN104476604B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410733683.1A Active CN104476604B (en) | 2014-12-04 | 2014-12-04 | The bar hold-down gear of a kind of bar cutting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117226171B (en) * | 2023-11-10 | 2024-02-02 | 泰州市海燕工程检测有限公司 | Guide rail cutting device for traffic engineering electric |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300754A (en) * | 1980-09-04 | 1981-11-17 | Lawrence Bernerd N | Welding clamp |
| JPH0741460B2 (en) * | 1990-07-09 | 1995-05-10 | 本田技研工業株式会社 | Pipe cutting device |
| CN202174285U (en) * | 2011-08-19 | 2012-03-28 | 联塑科技发展(武汉)有限公司 | Clamping mechanism for tube cutter |
| CN203140609U (en) * | 2013-03-06 | 2013-08-21 | 苏州杰锐思自动化设备有限公司 | Pressure closing machine |
| CN203381366U (en) * | 2013-06-07 | 2014-01-08 | 嘉兴迈思特管件制造有限公司 | Down-pressing adjusting device used for bar marking device |
| CN204295748U (en) * | 2014-12-04 | 2015-04-29 | 台州精华环保设备有限公司 | A kind of bar hold down gag of bar cutting machine |
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