CN104476604A - Bar pressing device of bar cutting machine - Google Patents
Bar pressing device of bar cutting machine Download PDFInfo
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- CN104476604A CN104476604A CN201410733683.1A CN201410733683A CN104476604A CN 104476604 A CN104476604 A CN 104476604A CN 201410733683 A CN201410733683 A CN 201410733683A CN 104476604 A CN104476604 A CN 104476604A
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- bar
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- cutting machine
- rod
- adjusting rod
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Abstract
The invention provides a bar pressing device of a bar cutting machine, and belongs to the technical field of machinery. By the bar pressing device of the bar cutting machine, the problem that the existing bar cutting machine is not high in cutting precision is solved. The bar pressing device comprises at least one cylinder support, wherein the cylinder supports are fixed on a bottom plate; a through groove of which the direction is consistent to a bar feeding direction is formed between each cylinder support and the bottom plate; a pressing cylinder is fixed on each cylinder support; each pressing cylinder comprises a cylinder body and a piston; a piston rod is fixed at one end of each piston; the piston rod of each pressing cylinder is perpendicular to the bottom plate, is downward and extends into the corresponding through groove; each pressing cylinder also comprises an adjusting rod which extends out of the corresponding cylinder body from the other end of the corresponding piston; each adjusting rod and the corresponding piston are positioned in the axial direction; the inside of the through groove of each cylinder support is provided with a pressing block which can slide in the up-down direction along the through groove; a connecting rod with inner threads is fixed on each pressing block; each pressing block is positioned at an end of the corresponding piston rod and can be positioned in a threaded connection manner; and when each adjusting rod rotates, the corresponding pressing block is close to or far away from the corresponding cylinder body, and a hand wheel is fixed at an end, which extends out of the corresponding cylinder body, of each adjusting rod.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of bar cutting machine, particularly a kind of bar hold down gag 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 cutter sweep, pay-off, hold down gag and automatic controller.Wherein, hold down gag is generally made up of compression cylinder, support and compact heap.At cutting tool in cutting bar process, realize being fixed of bar by controlling the flexible of compression cylinder piston rod.
As the applicant had had once designed and developed a kind of cutter sweep of bar cutting machine, and apply for Chinese patent [application number: 200620108106.4; Authorization Notice No.: CN2000957610Y] disclose a kind of cutter sweep of bar cutting machine, be located on the base plate of cutting machine, the blade comprise motor, being connected by transmission mechanism with motor, transmission mechanism and pushing mechanism are connected, pushing mechanism is controlled by control circuit, cutting machine tapping channel is provided with can the inductor of perception billet position, and inductor to be connected in described control circuit and to control pushing mechanism action; Base plate is also provided with vertical cylinder and horizontal air cylinder, and 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 compression realizing bar by control piston bar or the action loosened, because the stroke of piston rod is fixed, so the stroke between the compact heap that piston rod is arranged and base plate is fixed, namely spacing between bar and compact heap cannot be adjusted according to the quantity of bar and diameter.When the distance of compact heap initial position and bar is larger, easily causes bar that vibrations skew occurs in the process that compact heap presses down, thus affect the cutting accuracy of bar.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of bar hold down gag of bar cutting machine, the technical problem that the present invention solves how to improve the cutting accuracy of bar cutting.
Object of the present invention realizes by following technical proposal: a kind of bar hold down gag of bar cutting machine, described bar cutting machine comprises base plate, it is characterized in that, this bar hold down gag comprises at least one and is fixed on air cylinder support on base plate, between described air cylinder support and base plate, there is 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 perpendicular to base plate down and stretch in groove, described compression cylinder also comprises the adjusting rod stretching out cylinder body from the other end of piston, described adjusting rod and piston axial location, the compact heap that can slide up and down along groove is provided with in the groove of described air cylinder support, described compact heap is fixed the female connecting rod of tool, described compact heap be positioned at piston rod end and by the location that is threaded, when adjusting rod rotates compact heap near or away from cylinder body, the end that described adjusting rod stretches out cylinder body is also fixed with handwheel.
The operation principle of the bar hold down gag of this bar cutting machine is as follows: because the stroke of the relative compression cylinder body of piston rod is fixed, adjust according to the quantity of bar and diameter to enable the distance between compact heap and base plate, by arranging screw connection structure on compact heap, such connecting rod just can utilize helicitic texture make compact heap along groove slide up and down near or away from cylinder body, thus the distance between compact heap and base plate can be adjusted.When compression cylinder is in relaxation state, according to quantity and the diameter of bar, by compact heap circumference location, by being fixed on the handwheel on adjusting rod, spacing between compact heap and bar is adjusted, makes the distance that compact heap and bar remain suitable, and regulate simple and convenient.Thus avoiding because the spacing between compact heap and bar is comparatively large in compaction process, compact heap impacts bar and causes bar generation beat and offset in the process declined, and then improves the cutting accuracy of bar cutting.
In the bar hold down gag of above-mentioned bar cutting machine, described adjusting rod is fixed on one end of piston, and the piston rod of the described piston other end has external screw thread, and described connecting rod is connected with piston rod thread.Adjusting rod rotates and drives piston rotation, thus piston rod is also rotated thereupon.
Alternatively, in the bar hold down gag of above-mentioned bar cutting machine, described piston rod is the tubular structure of hollow, described piston correspondence position has the resigning hole be connected with piston rod endoporus, described adjusting rod has the location shaft shoulder, described adjusting rod is through resigning hole and piston rod endoporus and pass piston rod, the described location shaft shoulder is resisted against on piston, described adjusting rod is located by jump ring and piston rod, the part that described adjusting rod passes piston rod has external screw thread, and described connecting rod and adjusting rod are threaded.Directly be threaded with the connecting rod on compact heap by adjusting rod, be convenient to processing and the assembling of adjusting rod.
In the bar hold down gag of above-mentioned bar cutting machine, described air cylinder support comprises the plate-like mounting section being parallel to base plate, described installation portion two ends all have the tabular connecting portion perpendicular to base plate, the bottom of described installation portion has flange, described flange is fixed by screws on base plate, and described compression cylinder is fixed on installation portion.The groove of the tabular connecting portion formation at installation portion two ends can play the effect of guiding, is conducive to the cutting accuracy improving bar.
As preferably, in the bar hold down gag of above-mentioned bar cutting machine, described compact heap is square, and two sides of described compact heap and the medial surface of connecting portion are parallel to each other, and the distance between two described connecting portions equals or slightly larger than the width of compact heap.Like this, just can be limited the rotation of compact heap by connecting portion, but not affect moving up and down of compact heap, facilitate guiding mechanism to adjust, be conducive to the cutting accuracy improving bar.
As preferred further, in the bar hold down gag of above-mentioned bar cutting machine, the bottom of described compact heap is parallel to plate upper surface.The bottom of compact heap is parallel with base plate, when compact heap presses down time, can ensure that bar is subject to the thrust 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 preferred further, in the bar hold down gag of above-mentioned bar cutting machine, described connecting portion is parallel to the feedstock direction of bar.Connecting portion 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 gag of above-mentioned bar cutting machine, the quantity of described air cylinder support is two, described air cylinder support lay respectively at the two ends of base plate and connecting portion position corresponding to two air cylinder supports on the same line.By arranging two compression cylinders, 2 positions of bar are compressed, thus it is more stable that bar is located in cutting process simultaneously, being conducive to the cutting accuracy improving bar.
As preferably, in the bar hold down gag of above-mentioned bar cutting machine, described handwheel has rocking bar.By rocker structure, handwheel is controlled convenient, thus quickly and accurately compression spacing is adjusted, and then be conducive to the cutting accuracy that improve bar cutting.
Compared with prior art, the bar hold down gag of this bar cutting machine has the following advantages: when compression cylinder is in relaxation state, according to quantity and the diameter of bar, this bar hold down gag can adjust the gap between compact heap and bar, thus avoid and cause bar to be beated when compact heap presses down 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 gag in the present embodiment one.
Fig. 3 is the structural representation in another direction of this bar cutting machine.
Fig. 4 is the partial structurtes sectional view of compression cylinder in the present embodiment one.
Fig. 5 is the partial structurtes sectional view of compression cylinder in the present embodiment two.
In figure, 1, base plate; 2, air cylinder support; 21, installation portion; 22, connecting portion; 23, flange; 3, groove; 4, compression cylinder; 41, cylinder body; 42, piston; 43, piston rod; 5, compact heap; 6, connecting rod; 7, adjusting rod; 71, the shaft shoulder is located; 72, jump ring; 8, handwheel; 81, rocking bar.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one:
This bar cutting machine comprises base plate 1, and bar hold down gag comprises air cylinder support 2, compression cylinder 4, compact heap 5, connecting rod 6, adjusting rod 7 and handwheel 8.
Specifically, as shown in Figure 1, the quantity of air cylinder support 2 is at least one, on air cylinder support 2 fixed base plate 1, has the groove 3 consistent with bar feedstock direction between air cylinder support 2 and base plate 1, and each air cylinder support 2 is all fixed with a compression cylinder 4.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 perpendicular to base plate 1 down and stretch in groove 3.The end of piston rod 43 is provided with compact heap 5, and compact heap 5 is arranged the female connecting rod 6 of tool, connecting rod 6 is fixed on compact heap 5.Piston rod 43 has external screw thread, and piston rod 43 and connecting rod 6 are threaded.
Adjusting rod 7 is fixed on the other end of piston 42, and the end winding support that adjusting rod 7 stretches out cylinder body 41 has handwheel 8, handwheel 8 has rocking bar 81, has the tapered transitional reduced gradually to handwheel 8 diameter by adjusting rod 7 between adjusting rod 7 and handwheel 8.
As shown in Figure 2, air cylinder support 2 comprises the plate-like mounting section 21 being parallel to base plate 1, and compression cylinder 4 is fixed on installation portion 21.Installation portion 21 two ends all have the tabular connecting portion 22 perpendicular to base plate 1, and connecting portion 22 is parallel to the feedstock direction of bar, and the bottom of installation portion 21 has flange 23, and flange 23 is fixed by screws on base plate 1.Above-mentioned compact heap 5 is square, and two sides of compact heap 5 and the medial surface of connecting portion 22 are parallel to each other, and the distance between two connecting portions 22 equals or slightly larger than the width of compact heap 5, and the bottom of compact heap 5 is parallel to base plate 1 upper surface.
As shown in Figure 3, the quantity of air cylinder support 2 is two, air cylinder support 2 lay respectively at the two ends of base plate 1 and connecting portion 22 position of two air cylinder support 2 correspondences on the same line.
The compaction process of this bar hold down gag is as follows: in actual production process, according to the difference of 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 compact heap 5 near or away from base plate 1, calculate the diameter of bar, make the spacing between compact heap 5 and bar keep optimum state, thus complete the adjustment before compression; Then, when the cutting work station of bar movement, control compression cylinder 4 and work, thus complete the compression location of bar, and then improve the cutting accuracy of bar.
Embodiment two:
Technical scheme in the present embodiment is substantially identical with the technical scheme in embodiment one, difference is, as shown in Figure 5, in the present embodiment, piston rod 43 is the tubular structure of hollow, piston 42 correspondence position has the resigning hole be connected with piston rod 43 endoporus, adjusting rod 7 has the location shaft shoulder 71, adjusting rod 7 passes the endoporus of resigning hole and piston rod 43 and passes piston rod 43, the location shaft shoulder 71 is against on the piston 42, adjusting rod 7 is by jump ring 72 and piston rod 43 axial location, make piston 42, piston rod 43 and adjusting rod 7 are connected as a single entity, the part that adjusting rod 7 passes piston rod 43 has external screw thread, connecting rod 22 and adjusting rod 7 are threaded.Directly be threaded with the connecting rod 6 on compact heap 5 by adjusting rod 7, be convenient to processing and the assembling of adjusting rod 7.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the term such as base plate 1, air cylinder support 2, installation portion 21, connecting portion 22, flange 23, groove 3, compression cylinder 4, cylinder body 41, piston 42, piston rod 43, compact heap 5, connecting rod 6, adjusting rod 7, the location shaft shoulder 71, jump ring 72, handwheel 8, rocking bar 81 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (9)
1. the bar hold down gag of a bar cutting machine, described bar cutting machine comprises base plate (1), it is characterized in that, this bar hold down gag comprises at least one and is fixed on air cylinder support (2) 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) perpendicular to base plate (1) down and stretch in groove (3), described compression cylinder (4) also comprises the adjusting rod (7) stretching out cylinder body (41) from the other end of piston (42), described adjusting rod (7) and piston (42) axial location, the compact heap (5) that can slide up and down along groove (3) is provided with in the groove (3) of described air cylinder support (2), the upper fixing female connecting rod of tool (6) of described compact heap (5), described compact heap (5) be positioned at piston rod (43) end and by the location that is threaded, when adjusting rod (7) rotates compact heap (5) near or away from cylinder body (41), the end that described adjusting rod (7) stretches out cylinder body (41) is also fixed with handwheel (8).
2. the bar hold down gag of bar cutting machine according to claim 1, it is characterized in that, described adjusting rod (7) is fixed on one end of piston (42), the piston rod (43) of the described piston other end has external screw thread, and described connecting rod (6) and piston rod (43) are threaded.
3. the bar hold down gag of bar cutting machine according to claim 1, it is characterized in that, the tubular structure that described piston rod (43) is hollow, described piston (42) correspondence position has the resigning hole be connected with piston rod (43) endoporus, (7) have the location shaft shoulder with described adjusting rod, described adjusting rod (7) is through resigning hole and piston rod (43) endoporus and pass piston rod (43), the described location shaft shoulder is resisted against on piston (42), described adjusting rod (7) is located by jump ring and piston rod (43), the part that described adjusting rod (7) passes piston rod (43) has external screw thread, described connecting rod (6) and adjusting rod (7) are threaded.
4. the bar hold down gag of the bar cutting machine according to claim 1 or 2 or 3, it is characterized in that, described air cylinder support (2) comprises the plate-like mounting section (21) being parallel to base plate (1), described installation portion (21) two ends all have the tabular connecting portion (22) 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 on installation portion (21).
5. the bar hold down gag of bar cutting machine according to claim 4, it is characterized in that, described compact heap (5) is square, two sides of described compact heap (5) and the medial surface of connecting portion (22) are parallel to each other, and the distance between two described connecting portions (22) equals or slightly larger than the width of compact heap (5).
6. the bar hold down gag of bar cutting machine according to claim 5, is characterized in that, the bottom of described compact heap (5) is parallel to base plate (1) upper surface.
7. the bar hold down gag of bar cutting machine according to claim 4, is characterized in that, described connecting portion (22) is parallel to the feedstock direction of bar.
8. the bar hold down gag of bar cutting machine according to claim 4, it is characterized in that, the quantity of described air cylinder support (2) is two, described air cylinder support (2) lay respectively at the two ends of base plate (1) and connecting portion (22) position corresponding to two air cylinder supports (2) on the same line.
9. the bar hold down gag of the bar cutting machine according to claim 1 or 2 or 3, is characterized 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104476604A true CN104476604A (en) | 2015-04-01 |
| CN104476604B CN104476604B (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410733683.1A Active CN104476604B (en) | 2014-12-04 | 2014-12-04 | The bar hold-down gear of a kind of bar cutting machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN104476604B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117226171A (en) * | 2023-11-10 | 2023-12-15 | 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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|---|---|---|---|---|
| US4300754A (en) * | 1980-09-04 | 1981-11-17 | Lawrence Bernerd N | Welding clamp |
| JPH0469107A (en) * | 1990-07-09 | 1992-03-04 | Honda Motor Co Ltd | Pipe body cutting-off 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 |
-
2014
- 2014-12-04 CN CN201410733683.1A patent/CN104476604B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300754A (en) * | 1980-09-04 | 1981-11-17 | Lawrence Bernerd N | Welding clamp |
| JPH0469107A (en) * | 1990-07-09 | 1992-03-04 | Honda Motor Co Ltd | Pipe body cutting-off 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117226171A (en) * | 2023-11-10 | 2023-12-15 | 泰州市海燕工程检测有限公司 | Guide rail cutting device for traffic engineering electric |
| 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 | Publication date |
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| CN104476604B (en) | 2016-06-08 |
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