CN111037343B - Clamp for ensuring centering processing of frame parts and use method thereof - Google Patents
Clamp for ensuring centering processing of frame parts and use method thereof Download PDFInfo
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- CN111037343B CN111037343B CN201911367018.4A CN201911367018A CN111037343B CN 111037343 B CN111037343 B CN 111037343B CN 201911367018 A CN201911367018 A CN 201911367018A CN 111037343 B CN111037343 B CN 111037343B
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- hole
- main body
- core rod
- body sleeve
- center
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- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a clamp for ensuring the centering processing of frame parts and a use method thereof, the invention utilizes a front center which is elastically arranged on the clamp and a tailstock center on a machine tool to fix the frame parts, uses the existing reference hole on the frame parts to be matched with a core rod, and leads a bus of the core rod to be contacted with a reference step surface on a large nut to control the distance between the central position of the frame parts and a processed element, thereby ensuring the centering requirement of the frame parts, improving the processing quality of the parts, ensuring the processing precision of the parts, avoiding the problems of low processing efficiency, low tool setting accuracy, high requirements on the operation skill and the vision of a processor and the like caused by each tool setting processing method in the prior art, having simple structure, easy manufacture and low cost, improving the qualification rate and the production efficiency of the part processing, simultaneously reducing the labor intensity of the processor, being suitable for the processing of the frame parts with the centering requirements of different sizes, the application range is wide.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a clamp for ensuring centering machining of frame parts and a using method thereof.
Background
Along with the development of science and technology, the processing ability of equipment is stronger and stronger, and the precision of parts machining is higher and higher, also higher and higher to the requirement of part size uniformity, especially have the frame class part of centering requirement, hardly guarantee the centering of part in the course of working. The common processing method for centering frame parts requires a mechanical processor to set a tool for each part in the processing process, and the method has the advantages of low processing efficiency, high labor intensity, low tool setting accuracy, high requirements on the operation skills and eyesight of the processor and the like. There is a need for improvement.
Disclosure of Invention
The technical problems solved by the invention are as follows: the invention provides a clamp for ensuring the centering processing of frame parts and a use method thereof, the invention utilizes a front center which is elastically arranged on the clamp and a tailstock center on a machine tool to fix the frame parts, uses the existing reference hole on the frame parts to be matched with a core rod, and leads a bus of the core rod to be contacted with a reference step surface on a large nut to control the distance between the central position of the frame parts and a processed element, thereby ensuring the centering requirement of the frame parts, improving the processing quality of the parts, ensuring the processing precision of the parts, avoiding the problems of low processing efficiency, low tool setting accuracy, high requirements on the operation skill and the vision of a processor and the like caused by each tool setting processing method in the prior art, having simple structure, easy manufacture and low cost, improving the qualification rate and the production efficiency of the part processing, simultaneously reducing the labor intensity of the processor, being suitable for the processing of the frame parts with the centering requirements of different sizes, the application range is wide.
The technical scheme adopted by the invention is as follows: the clamp for ensuring the centering processing of the frame parts comprises a main body sleeve fixedly connected with a main shaft hole of a machine tool at the rear part, a front tip is installed in an inner hole of the main body sleeve in a matched mode, the front part of the front tip extends out of the front port of the inner hole of the main body sleeve, a plug is fixed at the rear port of the inner hole of the main body sleeve, the rear end of the front tip is connected with the plug through an elastic piece, a positioning structure for limiting the axial movement of the front tip is arranged on the main body sleeve, a large nut is fixedly connected to the front end part of the main body sleeve, the large nut is coaxial with the main body sleeve, the front part, extending out of the front tip, is arranged in an inner hole of the large nut, a reference step surface is machined on the front end surface of the large nut when the clamp is used, a core rod is matched with the reference hole on the frame parts, the front, and a limiting pin for limiting the core rod is arranged on the reference step surface.
The technical scheme is further limited, the outer surface of the rear part of the main body sleeve is made into a Morse cone matched with a taper hole of a machine tool spindle, the outer circular surface of the front tip is in small clearance fit with an inner hole of the main body sleeve, and the inner end of the plug is sleeved with a spring elastically connected with the front tip.
The technical scheme is further limited, the positioning structure comprises a key groove arranged on the outer circular surface of the front tip and a key groove hole arranged on the wall of the main sleeve and perpendicular to the axis of the main sleeve, a positioning key is arranged in the key groove hole, and a compression screw is screwed with the key groove hole in a threaded manner and compresses the positioning key in the key groove.
The technical scheme is further limited, the rear end of the inner hole of the large nut is connected with the front outer circle of the main sleeve through a threaded structure, a threaded hole used for fixing a limiting pin is formed in the reference step surface of the front end of the large nut, a limiting hole matched with the limiting pin is formed in the core rod, and the core rod is in small clearance fit with the reference hole in the frame part.
The use method of the clamp for ensuring the centering and processing of the frame parts comprises the following steps:
1) sleeving the elastic element on the plug, and screwing the plug into the threads at the rear end of the inner hole of the main sleeve; the front center is arranged in an inner hole of the main sleeve, the rear end of the front center is in contact with the elastic part, and the front center is tightly pressed through the positioning structure;
2) the rear part of the main body sleeve is arranged in a lathe spindle hole, a large nut is screwed at the front end of the main body sleeve, a reference step surface is formed by finely turning the front end of the large nut on the spot, a limit pin is screwed on the reference step surface, and the compression of a positioning structure on a front tip is released;
3) after a core rod is arranged in a reference hole of a frame part, the core rod is arranged in a clamp, a front tip is attached to a center hole at one side of the frame part, a tailstock tip on a machine tool is used for tightly pushing the center hole at the other side of the frame part, the core rod is axially pressed on a reference step surface, and then the front tip is pressed through a positioning structure;
4) machining one side of the frame part to the size by using a lathe tool; loosening the tailstock center, loosening the positioning structure, turning the frame part by 180 degrees, then pressing the tailstock center tightly, pressing the positioning structure tightly, and machining the other side of the frame part to the size by using a lathe tool;
5) when the frame parts are processed in batches, the limiting blocks on the machine tool are used, and the steps 4) and 5) are repeated to finish the batch processing of the parts.
Compared with the prior art, the invention has the advantages that:
1. according to the scheme, the frame part is fixed by utilizing the front center elastically arranged on the clamp and the tailstock center on the machine tool, the existing reference hole on the frame part is matched with the core rod, so that the core rod bus is in contact with the reference step surface on the large nut to control the distance between the central position of the frame part and a processed element, and the two side surfaces of the frame part are processed by taking the core rod bus as a positioning reference, so that the centering requirement of the frame part is ensured, the processing quality of the part is improved, the processing precision of the part is ensured, and the problems of low processing efficiency, low tool setting accuracy, high requirements on the operating skill and eyesight of a processor and the like caused by each tool setting processing method in the prior art are solved;
2. the clamp designed by the scheme is simple in structure, easy to manufacture and low in cost, can improve the qualification rate and the production efficiency of part processing, can reduce the labor intensity of a processor, is suitable for processing frame parts with different sizes and centering requirements, and is wide in application range.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The use of the phrase "comprising one.. without limitation, does not exclude the presence of other, identical elements in the process, method, article, or apparatus that comprises the same element.
Referring to figure 1 of the drawings,
the clamp for ensuring the centering processing of the frame type parts comprises a main body sleeve 1 fixedly connected with a machine tool spindle hole at the rear part of the clamp as shown in figure 1, and in order to ensure that the main body sleeve 1 is reliably installed on a machine tool, the outer surface of the rear part of the main body sleeve 1 is made into a Morse cone matched with the machine tool spindle cone hole. The inner hole of the main body sleeve 1 is internally provided with a front center 4 in a matching manner, the outer circular surface of the front center 4 is in small clearance fit with the inner hole of the main body sleeve 1, and the front part of the front center 4 extends out of the front port of the inner hole of the main body sleeve 1. A plug 2 is fixed at the rear end opening of an inner hole of the main body sleeve 1, the rear end of the front tip 4 is connected with the plug 2 through an elastic part, the elastic part preferably adopts a spring 3, and the elastic structure of the front tip 4 guarantees the close contact of the frame part 10 when the frame part is clamped on a clamp. The main body sleeve 1 is provided with a positioning structure for limiting the axial movement of the front center 4, specifically, the positioning structure comprises a key groove 401 arranged on the outer circular surface of the front center 4 and a key groove hole 101 arranged on the wall of the main body sleeve 1 and perpendicular to the axis of the main body sleeve, a positioning key 5 is arranged in the key groove hole 101, and a compression screw 6 is screwed with the key groove hole 101 and compresses the positioning key 5 in the key groove 401; the keyway 401 has an axial length greater than the locating key 5 to provide sufficient displacement for axial resilient movement of the front tip 4. The core rod machining device is characterized in that a large nut 7 is fixedly connected to the front end portion of the main body sleeve 1, the rear end of an inner hole of the large nut 7 is connected with the front outer circle of the main body sleeve 1 through a threaded structure, the large nut 7 is coaxial with the main body sleeve 1, the front portion, extending out of the front tip 4, of the large nut 7 is arranged in the inner hole of the large nut 7, a reference step surface 701 is machined on the front end face of the large nut 7 when the core rod machining device is used, the reference step surface 701 is machined on the spot, and the fact that the core rod 9 is perpendicular to. The core rod 9 is closely matched with a reference hole 1001 on the frame part 10 in a clearance way, and the front center 4 and a tailstock center 11 on the machine tool are used for propping the central holes on two sides of the frame part 10, so that the generatrix of the core rod 9 is closely attached to the reference step surface 701. The limiting pin 8 for limiting the core rod 9 is arranged on the reference step surface 701, the threaded hole for fixing the limiting pin 8 is formed in the reference step surface 701 at the front end of the large nut 7, the limiting hole 901 matched with the limiting pin 8 is formed in the core rod 9, and the design of the limiting pin 8 and the reference step surface 701 effectively ensures that the core rod 9 is not thrown out, so that potential safety hazards are avoided.
The use method of the clamp for ensuring the centering and processing of the frame parts comprises the following steps:
1) sleeving the spring 3 on the plug 2, and screwing the plug 2 into the thread at the rear end of the inner hole of the main sleeve 1; the front center 4 is arranged in an inner hole of the main body sleeve 1, so that the rear end of the front center 4 is contacted with the spring 3; the front center 4 is pressed tightly through a positioning structure, specifically, the front center 4 is rotated to enable a key groove 401 to be aligned to a key groove hole 101, a positioning key 5 is installed from the key groove hole 101, a pressing screw 6 is screwed with the key groove hole 101, the positioning key 5 is pressed in the key groove 401 of the front center 4 through the pressing screw 6, and the front center 4 is pressed and fixed;
2) a taper shank at the rear part of a main body sleeve 1 is arranged in a taper hole of a lathe spindle, a large nut 7 is screwed at the front end of the main body sleeve 1, a reference step surface 701 is formed by finely turning the front end of the large nut 7 on site, a limit pin 8 is screwed on the reference step surface 701, and the compression of a compression screw 6 on a front tip 4 is loosened;
3) after the core rod 9 is arranged in a reference hole 1001 of a frame part 10 and is arranged in a clamp, a front tip 4 is attached to a center hole at one side of the frame part 10, a tailstock tip 11 on a machine tool is used for tightly pushing the center hole at the other side of the frame part 10, the core rod 9 is axially pressed on a reference step surface 701, and then the front tip 4 is pressed by a pressing screw 6;
4) machining one side of the frame part 10 to the size by using a lathe tool; loosening the tailstock center 11, loosening the compression screw 6, turning the frame part 10 by 180 degrees, then pressing the tailstock center 11 tightly, compressing the compression screw 6, and machining the other side of the frame part 10 to the size by using a lathe tool; the bus of the core rod 9 is used as a positioning reference when the two side surfaces of the frame part 10 are processed, so that the centering requirements of the two side surfaces of the frame part 10 are ensured;
5) when the frame parts 10 are processed in batches, the limiting blocks on the machine tool are used, and the steps 4) and 5) are repeated, so that the batch processing of the parts can be completed.
The invention uses the front center 4 elastically arranged on the clamp and the tailstock center 11 on the machine tool to fix the frame part 10, uses the existing reference hole on the frame part 10 to match with the core rod 9, makes the generatrix of the core rod 9 contact with the reference step surface 701 on the large nut 7 to control the distance between the central position of the frame part 10 and the element to be processed, thereby ensuring the centering requirement of the frame part 10, improving the processing quality of the part, ensuring the processing precision of the part, avoiding the low processing efficiency caused by each tool setting processing method in the prior art, low tool setting accuracy, high requirements on the operating skill and eyesight of a processor and the like, simple clamp structure, easy manufacture and low cost, can improve the qualification rate and the production efficiency of part processing, meanwhile, the labor intensity of a processor can be reduced, the method is suitable for processing frame parts with different sizes and centering requirements, and the application range is wide.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. Guarantee anchor clamps of frame class part centering processing, its characterized in that: the core rod clamping device comprises a main body sleeve (1) fixedly connected with a machine tool spindle hole at the rear part, a front tip (4) is installed in an inner hole of the main body sleeve (1) in a matched mode, the front part of the front tip (4) extends out of the front port of the inner hole of the main body sleeve (1), a plug (2) is fixed at the rear port of the inner hole of the main body sleeve (1), the rear end of the front tip (4) is connected with the plug (2) through an elastic part, a positioning structure for limiting the axial movement of the front tip (4) is arranged on the main body sleeve (1), a large nut (7) is fixedly connected to the front end part of the main body sleeve (1), the large nut (7) is coaxial with the main body sleeve (1), the front part extending out of the front tip (4) is arranged in the inner hole of the large nut (7), a reference step surface (701) is machined on the front end surface of the large nut (7) when the large nut is used, the front center (4) and a tailstock center (11) on the machine tool support center holes at two sides of a frame part (10) to enable a core rod (9) bus to be tightly attached to a reference step surface (701), and a limiting pin (8) for limiting the core rod (9) is arranged on the reference step surface (701);
the positioning structure comprises a key groove (401) arranged on the outer circular surface of the front tip (4) and a key groove hole (101) arranged on the wall of the main sleeve (1) and vertical to the axis of the main sleeve, a positioning key (5) is arranged in the key groove hole (101), and a compression screw (6) is screwed with the key groove hole (101) in a threaded manner and compresses the positioning key (5) in the key groove (401);
the large nut (7) is characterized in that a threaded hole for fixing the limiting pin (8) is formed in a reference step surface (701) at the front end of the large nut, a limiting hole (901) matched with the limiting pin (8) is formed in the core rod (9), and the core rod (9) is in small-gap fit with a reference hole (1001) in the frame part (10).
2. The clamp for ensuring the centering processing of the frame type part according to claim 1, wherein: the outer surface of the rear part of the main body sleeve (1) is made into a Morse cone matched with a taper hole of a machine tool main shaft, the outer circular surface of the front tip (4) is in small clearance fit with an inner hole of the main body sleeve (1), and a spring (3) elastically connected with the front tip (4) is sleeved at the inner end of the plug (2).
3. The clamp for ensuring the centering processing of the frame type part according to claim 1, wherein: the rear end of the inner hole of the large nut (7) is connected with the front excircle of the main sleeve (1) through a thread structure.
4. The use method of the clamp for ensuring the centering of the frame parts according to any one of claims 1 to 3 is characterized in that: the method comprises the following steps:
1) sleeving the elastic piece on the plug (2), and screwing the plug (2) into the thread at the rear end of the inner hole of the main sleeve (1); the front center (4) is arranged in an inner hole of the main body sleeve (1), the rear end of the front center (4) is in contact with the elastic part, and the front center (4) is pressed tightly through the positioning structure;
2) the rear part of a main body sleeve (1) is installed in a lathe spindle hole, a large nut (7) is screwed at the front end of the main body sleeve (1), a reference step surface (701) is formed by finish turning the front end of the large nut (7) on site, a limit pin (8) is screwed on the reference step surface (701), and the front tip (4) is loosened and pressed by a positioning structure;
3) after a core rod (9) is arranged in a reference hole (1001) of a frame part (10), the core rod is arranged in a clamp, a front tip (4) is attached to a center hole at one side of the frame part (10), a tailstock tip (11) on a machine tool is used for tightly ejecting the center hole at the other side of the frame part (10), the core rod (9) is axially pressed on a reference step surface (701), and then the front tip (4) is pressed through a positioning structure;
4) machining one side of the frame part (10) to the size by using a lathe tool; loosening the tailstock center (11), loosening the positioning structure, turning the frame part (10) by 180 degrees, then pressing the tailstock center (11), pressing the positioning structure, and machining the other side of the frame part (10) to the size by using a lathe tool;
5) when the frame parts (10) are processed in batches, the limiting blocks on the machine tool are used, and the steps 4) and 5) are repeated to finish the batch processing of the parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367018.4A CN111037343B (en) | 2019-12-26 | 2019-12-26 | Clamp for ensuring centering processing of frame parts and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367018.4A CN111037343B (en) | 2019-12-26 | 2019-12-26 | Clamp for ensuring centering processing of frame parts and use method thereof |
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| Publication Number | Publication Date |
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| CN111037343A CN111037343A (en) | 2020-04-21 |
| CN111037343B true CN111037343B (en) | 2021-03-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112276187B (en) * | 2020-10-21 | 2022-05-24 | 浙江欧迪恩传动科技股份有限公司 | Machine tool and method for machining universal joint spline shaft by utilizing machine tool |
| CN112658759B (en) * | 2020-12-17 | 2022-09-27 | 陕西宝成航空仪表有限责任公司 | Clamp structure for machining shell parts on machine tool |
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Effective date of registration: 20230510 Address after: Room 101, Building 1, No. 31 Wushahuan South Road, Chang'an Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Dagao Hardware Technology Co.,Ltd. Address before: 721006 No. 70 Qing Jiang Road, Shaanxi, Baoji Patentee before: SHAANXI BAOCHENG AVIATION INSTRUMENT Co.,Ltd. |