CN108356597B - Pulley assembly and numerical control machine tool pull cover adopting pulley assembly - Google Patents
Pulley assembly and numerical control machine tool pull cover adopting pulley assembly Download PDFInfo
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- CN108356597B CN108356597B CN201810345101.0A CN201810345101A CN108356597B CN 108356597 B CN108356597 B CN 108356597B CN 201810345101 A CN201810345101 A CN 201810345101A CN 108356597 B CN108356597 B CN 108356597B
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- pulley
- sliding block
- pin shaft
- machine tool
- extension section
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- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims description 16
- 238000000429 assembly Methods 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000002173 cutting fluid Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/0825—Relatively slidable coverings, e.g. telescopic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Machine Tool Units (AREA)
Abstract
The invention relates to a mounting technology of a numerical control machine tool pull cover and a machine tool, in particular to a pulley assembly and the numerical control machine tool pull cover adopting the pulley block. Solves the problem that the cutter table can not work normally due to the fact that the pulley for the pull cover of the existing numerical control machine tool is separated from the guide rail. A pulley assembly comprising a fixed block and a slider; the sliding block is inserted into a long groove formed between the front extension section and the rear extension section of the fixed block, and the vertical protrusion is positioned in the limiting vertical groove; a set screw for fixing the sliding block is respectively arranged in the screw holes; a pin shaft is arranged in a pin shaft hole penetrating through the left extension section and the right extension section, a compression nut is sleeved at one end of the pin shaft, which is positioned at the outer side of one of the extension sections, and a roller is sleeved at the part of the pin shaft, which is positioned between the left extension section and the right extension section, in a rotating manner; a screw hole penetrating through the center of the base is provided with a jackscrew for adjusting the height of the sliding block. The invention has a sliding block structure, and can conveniently adjust the upper and lower positions of the pulley; every assembly pulley can all contact on the guide rail, and whole pull cover operates steadily.
Description
Technical Field
The invention relates to a mounting technology of a numerical control machine tool pull cover and a machine tool, in particular to a pulley assembly and the numerical control machine tool pull cover adopting the pulley block.
Background
In recent years, with the great improvement of the processing capability of the national mechanical equipment manufacturing industry and the increasing demands of people on environment, processing quality, processing efficiency, personal safety and health, the numerical control machine tool is undoubtedly the first-choice processing equipment of most production enterprises. In combination with the numerical control machine tool of the company, each numerical control machine tool is provided with four pull covers which are mutually matched in a telescopic way through seals, and the four pull covers are driven by a machine tool table to stably run on a guide rail so as to block cutting fluid and scrap iron.
The newly purchased numerical control machine tool pull cover operates stably during working, and the problem of pull cover is increasingly displayed along with the aging of equipment for several years, and is mainly expressed as follows:
1. the thickness of the pulley frame of the pulley is 3mm in the original equipment of the machine tool, the weight of the whole pulley frame is on the three groups of pulley blocks, and the pulley frame deforms along with the use and aging of equipment, so that the running precision of the pulley block is influenced, and the running precision of the whole pulley frame is influenced. A conventional pulley block for use with the pull cup shown in fig. 11.
2. When the machine tool is severe, the pulling covers are separated from each other, the pulleys are separated from the guide rail, and the hooks at the upper ends of the pulling covers are connected with the machine tool only by virtue of the hooks at the upper ends of the pulling covers, and the pulling covers are driven by the workbench and are affected, so that the workbench cannot operate, otherwise, the pulling covers are easily damaged by jacking.
3. The pulley block is welded on the pull cover, and once the pulley frame of the pulley block is damaged, a new pulley frame which is welded again is required to be cut off, so that the pulley block is inconvenient to replace.
4. Because the roller is welded, the height of the roller cannot be adjusted, and the contact degree of the pulley and the machine tool guide rail cannot be easily adjusted.
5. If the pull cover is not used, scrap iron and cutting fluid are splashed everywhere during working, and the guide rail of the numerical control machine tool is easy to damage.
Disclosure of Invention
The invention provides a pulley assembly and a numerical control machine tool pull cover adopting the pulley block, which are used for solving the technical problems that a pulley for the numerical control machine tool pull cover is separated from a guide rail in operation so that a tool table cannot work normally.
The pulley assembly is realized by adopting the following technical scheme: a pulley assembly comprising a fixed block and a slider; the fixed block comprises a rectangular base, and the front and rear parts of the bottom surface of the base are respectively clung to the front and rear sides of the bottom surface and downwards extend to form front and rear extension sections; wherein, the middle of the front extension section is downwards provided with a limiting vertical groove which divides the front extension section into a left part and a right part from the bottom surface of the base; the front extension section divided into two parts is respectively provided with a screw hole which is penetrated from front to back; the center of the base is provided with a threaded hole which is penetrated up and down; the sliding block comprises a cuboid structure, a vertical protrusion matched with the limiting vertical groove is arranged in the middle of the front side surface of the cuboid structure, the sliding block is inserted into a long groove formed between the front extension section and the rear extension section of the fixed block, and the vertical protrusion is positioned in the limiting vertical groove; a set screw for fixing the sliding block is respectively arranged in the screw holes; the left side and the right side of the lower end of the cuboid structure respectively extend downwards to form a left extension section and a right extension section, and the left extension section and the right extension section are respectively provided with a pin shaft hole which is penetrated left and right; a pin shaft is arranged in a pin shaft hole penetrating through the left extension section and the right extension section, a compression nut is sleeved at one end of the pin shaft, which is positioned at the outer side of one of the extension sections, and a roller is sleeved at the part of the pin shaft, which is positioned between the left extension section and the right extension section, in a rotating manner; a screw hole penetrating through the center of the base is provided with a jackscrew for adjusting the height of the sliding block.
The pulley assembly comprises a sliding block, the upper and lower positions of the sliding block can be adjusted through jackscrews, the adjusting range is enlarged, and the sliding block or the roller wheel can be replaced conveniently.
The fixed block is provided with a limiting vertical groove to be matched with the vertical protrusion of the sliding block, and the sliding block can well ensure that the sliding block can only move up and down in the long groove of the fixed block but cannot rotate and swing when sliding in the long groove of the fixed block.
When the pulley assembly is used, after the proper position of the pulley assembly on the guide rail is determined through the jackscrew, the set screw is screwed down, so that the sliding block is ensured to be fixed in the fixed block, and the pulley assembly can stably run during operation.
The idler wheel is connected to the sliding block through the pin shaft, the set screw is loosened, and the sliding block can be freely detached, so that the pulley is convenient to replace.
The numerical control machine tool pull cover is realized by adopting the following technical scheme: the numerical control machine tool pulling cover comprises three pulley assemblies which are arranged on one side edge of the numerical control machine tool pulling cover and are all arranged on a guide rail of the numerical control machine tool pulling cover in a sliding mode; the roller axes of the two pulley assemblies are parallel, the roller axis of the third pulley assembly is perpendicular to the roller axes of the two pulley assemblies, and the roller motion direction of the third pulley assembly is parallel to the roller motion direction of the two pulley assemblies.
The technical characteristics of the numerical control machine tool pull cover are that:
(1) the contact between the pull cover and the machine tool guide rail still adopts the contact between the roller and the guide rail;
(2) the connecting mode between the pull cover and the new pulley assembly is also welding, except that the new pulley block is provided with a sliding block, so that the upper and lower positions of the pulley can be adjusted, the adjusting range is enlarged, and the pulley can be replaced easily;
(3) the pulley block consists of a sliding block, a fixed block, a jackscrew, a set screw, a roller, a pin shaft and the like, wherein the thickness of the fixed block is 30mm, and the strength of the fixed block is far greater than that of the original pulley block fixing frame; the fixed block is also provided with a vertical groove to be matched with the protrusion of the sliding block, and the protrusion can well ensure that the sliding block can only move up and down in the long groove of the fixed block but cannot rotate and swing when the sliding block slides in the long groove of the fixed block;
(4) when the pulley is used, the proper position of the pulley on the guide rail is determined through the jackscrew, and then the set screw is screwed down, so that the sliding block is ensured to be fixed in the fixed block, and the pulley can stably run during working;
(5) the idler wheel is connected to the sliding block through the pin shaft, the set screw is loosened, and the sliding block can be freely detached, so that the pulley is convenient to replace.
Compared with the prior art, the beneficial effects that have:
(1) the fixing frame of the pulley block is reinforced and is not easy to deform, so that good protection conditions are provided for the whole set of pulley block;
(2) the upper and lower positions of the pulleys can be conveniently adjusted by the sliding block structure;
(3) each pulley block can be contacted with the guide rail, and the whole pull cover operates stably, so that the processing efficiency and the processing capacity of the numerical control machine tool are ensured;
(4) the invention is also suitable for the pull cover connection of other types of machine tools.
Drawings
Fig. 1 is a schematic front view of a fixing block.
Fig. 2 is a cross-sectional view A-A of fig. 1.
Fig. 3 is a schematic diagram of a front view structure of the slider.
Fig. 4 is a side view of fig. 3.
Fig. 5 is a top view of fig. 3.
Fig. 6 is a schematic diagram of a front view of a pulley assembly.
Fig. 7 is a schematic side view of fig. 6.
Fig. 8 is a schematic diagram of a front view of a pin.
Fig. 9 is a schematic side view of fig. 8.
Fig. 10 is a schematic diagram of the machine tool pull cover structure after the new pulley assembly is adopted.
Fig. 11 is a schematic diagram of a machine tool pull cover structure adopting a conventional pulley block.
1-fixed blocks, 2-sliding blocks, 3-numerical control machine tool pull covers, 4-pulley assemblies and 5-traditional pulley blocks;
the device comprises a base 11, a front extension section 12, a rear extension section 13, a limit vertical groove 14, a screw hole 15, a screw hole 16, a set screw 17 and a jackscrew 18;
21-vertical protrusions, 22-left extension sections, 23-right extension sections, 24-pin shaft holes, 25-pin shafts, 26-compression nuts, 27-rollers and 28-transverse grooves;
31-first guide rail, 32-second guide rail.
Detailed Description
A pulley assembly comprises a fixed block 1 and a sliding block 2; the fixed block 1 comprises a rectangular base 11, and front and rear parts of the bottom surface of the base 11 are respectively clung to the front and rear sides of the bottom surface and downwards extend to form front and rear extension sections 12 and 13; wherein the middle of the front extension section 12 is provided with a limiting vertical groove 14 which divides the front extension section 12 into a left part and a right part from the bottom surface of the base 11 downwards; the front extension section 12 divided into two parts is respectively provided with a screw hole 15 which is penetrated from front to back; the center of the base 11 is provided with a threaded hole 16 which is vertically penetrated; the sliding block 2 comprises a cuboid structure, a vertical protrusion 21 matched with the limiting vertical groove 14 is arranged in the middle of the front side surface of the cuboid structure, the sliding block 2 is inserted into a long groove formed between the front extension section 12 and the rear extension section 13 of the fixed block, and the vertical protrusion 21 is positioned in the limiting vertical groove 14; a set screw 17 for fixing the slide block 2 is respectively arranged in the screw holes 15; the left and right sides of the lower end of the cuboid structure are respectively extended downwards to form left and right extension sections 22 and 23, and the left and right extension sections 22 and 23 are respectively provided with a pin shaft hole 24 which is penetrated left and right; a pin shaft 25 is arranged in a pin shaft hole 24 penetrating through the left and right extension sections 22 and 23, a compression nut 26 is sleeved at one end of the pin shaft 25 positioned at the outer side of one of the extension sections, and a roller 27 is sleeved on the pin shaft 25 in a part positioned between the left and right extension sections 22 and 23 in a rotating manner; a threaded hole 16 passing through the center of the base 11 is provided with a top thread 18 for adjusting the height of the slider 2.
The outer side of the extension section of the slide block 2, which is not provided with a compression nut 26, is recessed inwards at the upper end and the lower end of the pin shaft hole 24 to form a transverse groove 28; the end of the pin 25 on this side is flat (as shown in fig. 8 and 9). The thickness between the front and rear directions of the fixed block 1 is 30mm.
The numerical control machine tool pulling cover comprises three pulley assemblies 4 arranged on one side edge of a numerical control machine tool pulling cover 3, wherein the pulley assemblies 4 are arranged on a guide rail of the numerical control machine tool pulling cover 3 in a sliding manner; wherein the axes of the rollers 27 on the two pulley assemblies 4 are parallel, the axis of the roller 27 of the third pulley assembly 4 is perpendicular to the axes of the rollers 27 of the two pulley assemblies 4, and the movement direction of the roller 27 of the third pulley assembly 4 is parallel to the movement direction of the rollers 27 of the two pulley assemblies 4.
As shown in fig. 10, the pulley block is mounted on a pull cup, two of which are in contact with the first rail and remain vertical thereat, and the other of which is in contact with the second rail, the pull cup being slidable back and forth on the two rails under the support of three sets of pulley assemblies.
According to the invention, in combination with the actual situation of a numerical control machine tool, the strength of an original pulley frame, namely the strength of a fixed block of a new pulley block is enhanced, and the integral support of a pull cover is ensured, as shown in figures 1 and 2; then, starting from the pulley block, considering the replaceability and the adjustability, the structure of the fixed block and the sliding block is designed, the fixed block is welded on the pull cover, the sliding block slides up and down in the fixed block, and meanwhile, the sliding block is provided with a bulge, so that the sliding block can only move up and down and cannot rotate, as shown in 3, 4 and 5; the jackscrews and the set screws are matched with each other in pairs, so that the proper position of the sliding block is ensured, namely the contact degree of the roller and the guide rail is adjusted. The new design pulley block is shown in fig. 6 and 7.
2. Supplementary description of the invention
One end of the connecting pin shaft on the sliding block is provided with a transverse groove which is matched with the flat part of the pin shaft, so that the roller is ensured to slide and the pin shaft is not moved during working, the friction between the pin shaft and the pin hole on the sliding block is reduced, and the service lives of the sliding block and the pin shaft are prolonged.
When the fixed block and the sliding block are processed, the small clearance fit between the protruding part of the sliding block and the groove of the fixed block is ensured, the faces of the sliding block are always vertical or parallel, the upper end face of the sliding block is parallel to the axial lead of the pin hole, and the axial lead of the pin hole is always vertical to the two side faces, so that the running stability of the whole pulley block during working can be ensured.
3. Description of the use of the invention
(1) The position of the fixed block is adjusted well and welded on the pull cover, so that the limit vertical groove (the groove matched with the vertical protrusion of the sliding block) of the fixed block is vertical to the guide rail;
(2) the pin shaft and the pulley are arranged on the sliding block, and then the sliding block assembly is arranged on the fixed block, so that the sliding block can slide freely in the fixed block;
(3) the jackscrews and the set screws are regulated, so that the rollers are ensured to be in full contact with the guide rail after the pull cover is installed, one ends of the rollers cannot be tilted and contacted, and the axes of the rollers are parallel to the running direction of the pull cover on the guide rail;
(4) and finally, screwing the set screw.
The invention has the technical characteristics that:
(1) The design principle of the scheme is to enhance the rigidity of the pulley block of the pull cover of the numerical control machine tool, particularly the rigidity of the pulley frame, improve the durability of the pulley block and ensure the running stability of the whole pulley block during working;
(2) The connecting and positioning mode of the sliding block and the fixed block can ensure that the sliding block slides up and down, prevent the sliding block from rotating and inclining, enable the pulley to linearly contact on the guide rail, and enable the pull cover to stably run, thereby ensuring the machining performance of the numerical control machine tool;
(3) The roller can be conveniently replaced by detaching the sliding block, and the problem that the pulley is not easy to detach due to deformation of the pulley frame is avoided.
According to the invention, the pulley block structure is changed, so that the pulleys can be freely adjusted up and down, each pulley block can be contacted with the guide rail, the pull cover is uniformly supported on the guide rail of the machine tool, the smooth running of the pull cover is ensured, the guide rail of the machine tool is protected, the tool rest can freely slide along the guide rail during working, the machining efficiency is improved, and the machining precision is ensured.
Claims (4)
1. A pulley assembly, characterized by comprising a fixed block (1) and a sliding block (2); the fixed block (1) comprises a rectangular base (11), and front and rear parts of the bottom surface of the base (11) are respectively clung to front and rear sides of the bottom surface and downwards extend to form front and rear extension sections (12, 13); wherein, a limiting vertical groove (14) which divides the front extension section (12) into a left part and a right part is downwards arranged in the middle of the front extension section (12) from the bottom surface of the base (11); the front extension section (12) divided into two parts is respectively provided with a screw hole (15) which is penetrated from front to back; the center of the base (11) is provided with a threaded hole (16) which is penetrated up and down; the sliding block (2) comprises a cuboid structure, a vertical protrusion (21) matched with the limiting vertical groove (14) is arranged in the middle of the front side surface of the cuboid structure, the sliding block (2) is inserted into a long groove formed between the front extension section (12) and the rear extension section (13) of the fixed block, and the vertical protrusion (21) is positioned in the limiting vertical groove (14); a set screw (17) for fixing the sliding block (2) is respectively arranged in the screw hole (15); the left side and the right side of the lower end of the cuboid structure respectively extend downwards to form left and right extension sections (22, 23), and the left and right extension sections (22, 23) are respectively provided with a pin shaft hole (24) which is penetrated left and right; a pin shaft (25) is arranged in a pin shaft hole (24) penetrating through the left and right extension sections (22, 23), a compression nut (26) is sleeved at one end of the pin shaft (25) positioned at the outer side of one extension section, and a roller (27) is sleeved at the part of the pin shaft (25) positioned between the left and right extension sections (22, 23) in a rotating manner; a threaded hole (16) passing through the center of the base (11) is provided with a jackscrew (18) for adjusting the height of the sliding block (2).
2. Pulley assembly according to claim 1, characterized in that the outer side of the extension of the slider (2) without the compression nut (26) is recessed inwards at the orifice of the pin shaft hole (24) to form a transverse groove (28); the end of the pin shaft (25) at the side is in a flat structure.
3. Pulley assembly according to claim 1 or 2, characterized in that the thickness between the front and rear direction of the fixed block (1) is 30mm.
4. The numerical control machine tool pulling cover is characterized in that one side edge of the numerical control machine tool pulling cover (3) is provided with three pulley assemblies (4) according to claim 1, and the pulley assemblies (4) are all arranged on a guide rail of the numerical control machine tool pulling cover (3) in a sliding manner; wherein the axes of the rollers (27) on the two pulley assemblies (4) are parallel, the axis of the roller (27) of the third pulley assembly (4) is vertical to the axis of the roller (27) of the two pulley assemblies (4), and the moving direction of the roller (27) of the third pulley assembly (4) is parallel to the moving direction of the rollers (27) of the two pulley assemblies (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345101.0A CN108356597B (en) | 2018-04-17 | 2018-04-17 | Pulley assembly and numerical control machine tool pull cover adopting pulley assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345101.0A CN108356597B (en) | 2018-04-17 | 2018-04-17 | Pulley assembly and numerical control machine tool pull cover adopting pulley assembly |
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| Publication Number | Publication Date |
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| CN108356597A CN108356597A (en) | 2018-08-03 |
| CN108356597B true CN108356597B (en) | 2024-04-05 |
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| CN201810345101.0A Active CN108356597B (en) | 2018-04-17 | 2018-04-17 | Pulley assembly and numerical control machine tool pull cover adopting pulley assembly |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109434556A (en) * | 2018-12-22 | 2019-03-08 | 广东创能精密机械有限公司 | A kind of gantry, horizontal-vertical double-purpose extensible cover idler wheel |
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| CN206267697U (en) * | 2016-11-30 | 2017-06-20 | 中山德莉玛洁具有限公司 | Bath room guide rail pulley structure |
| CN207087094U (en) * | 2017-04-21 | 2018-03-13 | 曾庆明 | Roller pressure adjusting apparatus |
| CN208099941U (en) * | 2018-04-17 | 2018-11-16 | 山西平阳重工机械有限责任公司 | Pulley assembly and the numerically-controlled machine tool drawing cover for using the pulley assembly |
-
2018
- 2018-04-17 CN CN201810345101.0A patent/CN108356597B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704722A (en) * | 2012-06-11 | 2012-10-03 | 芜湖汉光立体停车设备有限公司 | Transmission rail height adjusting structure |
| CN203835116U (en) * | 2014-04-22 | 2014-09-17 | 北汽福田汽车股份有限公司 | Pulley assembly, side sliding door and vehicle |
| CN204003972U (en) * | 2014-06-13 | 2014-12-10 | 中国建材国际工程集团有限公司 | A kind of straight-line guidance roller group |
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| CN108356597A (en) | 2018-08-03 |
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