CN112404524A - Clamping device and method for improving machining quality of radial hole of fine shaft part - Google Patents

Clamping device and method for improving machining quality of radial hole of fine shaft part Download PDF

Info

Publication number
CN112404524A
CN112404524A CN202011349087.5A CN202011349087A CN112404524A CN 112404524 A CN112404524 A CN 112404524A CN 202011349087 A CN202011349087 A CN 202011349087A CN 112404524 A CN112404524 A CN 112404524A
Authority
CN
China
Prior art keywords
plate
shaft
radial
hole
pressing plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011349087.5A
Other languages
Chinese (zh)
Inventor
孙婙
李云鹏
漆嵘
杨风军
王恺
赵晓群
施军良
刘涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN NORTH ELECTRO-OPTIC TECHNOLOGY DEFENSE CO LTD
Original Assignee
XI'AN NORTH ELECTRO-OPTIC TECHNOLOGY DEFENSE CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN NORTH ELECTRO-OPTIC TECHNOLOGY DEFENSE CO LTD filed Critical XI'AN NORTH ELECTRO-OPTIC TECHNOLOGY DEFENSE CO LTD
Priority to CN202011349087.5A priority Critical patent/CN112404524A/en
Publication of CN112404524A publication Critical patent/CN112404524A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/02—Boring templates or bushings
    • 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
    • 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
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material

Abstract

The invention provides a clamping device and a method for improving the processing quality of radial holes of fine shaft parts. The characteristics that the machined part is small in structure, cutting force generated by machining is small, and clamping force required is small are utilized, a traditional clamping method is abandoned, the design of a locking device is saved, a pressing method that pressing force is applied by hands is adopted, machining is carried out on a common drilling machine, the problems that the part is damaged and scrapped due to clamping force is too large when the part is machined and the part is poor in rigidity and cannot be machined are solved, machining quality of the part is improved, machining efficiency is improved, occupation of high-precision equipment is reduced, and machining cost is reduced.

Description

Clamping device and method for improving machining quality of radial hole of fine shaft part
Technical Field
The invention belongs to the field of machinery, and particularly relates to a clamping device and a clamping method for improving the machining quality of radial holes of fine shaft parts.
Background
In the fields of various instruments and meters and aerospace, the thin shaft parts with holes in the radial direction are very widely applied, and the types of materials of the parts are also very wide, relating to ferrous metals and nonferrous metals. The structure is characterized in that the shaft diameters of two ends of the part are smaller (phi 2H 7), the shaft diameter of the middle part is larger (phi 5H 9), a smaller radial hole (phi 1H 7) is arranged on the small shaft at one end, and the verticality requirement between the radial hole phi 1H7 (+ 0.010) and the shaft phi 2H7 (0-0.01) at the two ends is not more than phi 0.01 mm.
In the machining of mechanical parts, the method for machining the radial holes in the small shaft parts comprises the following steps:
the first method is that a part clamps a small shaft at one non-porous end on a coordinate boring machine for drilling, and a common auxiliary tool (such as V-shaped iron) cannot effectively clamp the part due to the small part, so the part is clamped by a vice, however, the part is displaced in the drilling process due to the small part and the small clamping surface if the clamping force is not enough, so that hole machining is out of tolerance, and the part is easily damaged by clamping if the clamping force is too large, so that the part is scrapped;
the second is that the turning center carries out the turning and drills, but because the part is tiny, and the rigidity is poor, because the part is cantilever form when drilling, the straightness that hangs down of the hole center to the part axis of processing back part often is out of tolerance, causes the part to scrap, because machining center's processing cost is high moreover, has also improved the processing cost of part.
Therefore, how to process qualified parts with guaranteed quality and quantity, reduce the processing cost and improve the processing efficiency is a problem to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention aims to provide a clamping device and a clamping method for improving the processing quality of radial holes of fine shaft parts, so as to overcome the technical defects.
In order to solve the technical problem, the invention provides a clamping device for improving the processing quality of radial holes of fine shaft parts, which is characterized by at least comprising a top plate which is horizontally arranged, wherein one side wall of the top plate vertically extends downwards to form a side plate, the plate wall of the side plate horizontally extends to form at least one support arm, and the support arm and the top plate are positioned on the same side of the side plate;
the drill bit is arranged on the plate wall of the side plate, the first guide hole for the drill bit to extend into is formed in the plate wall of the top plate, the second guide hole for the target shaft to penetrate through and insert is formed in the plate wall of the side plate, the central axes of the two guide holes are perpendicular to each other, the drill bit is right aligned to the position of the radial hole to be processed of the target shaft after passing through the first guide hole, the manual pressing plate is arranged on the support arm, one end of the manual pressing plate is hinged to the support arm, the other end of the manual pressing plate is suspended, and the plate wall of the suspended end can.
Furthermore, a drill bushing is embedded in the first guide hole, the drill bushing is a hollow cylindrical body, the upper cylindrical surface of the drill bushing is lower than the upper surface of the top plate, and the lower cylindrical surface of the drill bushing is located below the lower surface of the top plate.
Furthermore, the plate wall of the side plate horizontally extends along the direction of the top plate to form two parallel and opposite support arms, a manual pressing plate parallel to the side plate is erected between the two support arms, the bottom end of the manual pressing plate is hinged with the two support arms respectively, and the plate top of the manual pressing plate is higher than the lower surface of the top plate.
Preferably, the wall of the manual pressure plate, which faces the second guide hole, is provided with a hemispherical protrusion, and the hemispherical protrusion can abut against the shaft end of the target shaft.
Furthermore, the wall of the manual pressing plate, which deviates from the hemispherical protrusion, is provided with an arc-shaped groove, the arc-shaped groove and the hemispherical protrusion are arranged opposite to each other relative to the manual pressing plate, and the bottom end of the manual pressing plate is semicircular along the section perpendicular to the plate surface direction.
Preferably, the number of the first guide holes, the number of the second guide holes and the number of the hemispherical bulges are equal, each first guide hole is provided with the corresponding second guide hole, and each hemispherical bulge is opposite to the shaft end of the target shaft in the second guide hole.
The invention also provides a clamping method for improving the processing quality of the radial holes of the fine shaft parts, which is characterized by at least comprising a clamping device for improving the processing quality of the radial holes of the fine shaft parts, wherein the clamping method comprises the following steps:
and inserting the target shaft of the radial hole to be processed into the second guide hole, enabling the shaft end of the radial hole to be processed to be located under the first guide hole, rotating the manual pressing plate to enable the plate surface of the manual pressing plate to abut against the shaft end face of the radial hole to be processed and to be compressed, and enabling the drill bit to penetrate through the first guide hole and drill into the position of the radial hole to be processed of the target shaft to implement drilling.
Further, the clamping method for improving the machining quality of the radial holes of the small shaft parts comprises the following steps:
step 001, inserting the two target shafts of the radial holes to be machined into the two second guide holes respectively, so that the shaft end of each target shaft where the radial hole to be machined is located right below the corresponding first guide hole;
step 002, rotating the manual pressing plate to enable the hemispherical protrusion to abut against the end face of the shaft where the radial hole to be machined is located, and pressing the arc-shaped groove by the fingers of an operator to tightly press the target shaft;
step 003, drilling the radial hole to be processed by the drill bit through the drill bushing;
and step 004, rotating the manual pressing plate to enable the manual pressing plate to be separated from the target shaft, taking down the target shaft, and finishing the processing.
The invention has the following beneficial effects:
the characteristics that the machined part is small in structure, cutting force generated by machining is small, and clamping force required is small are utilized, a traditional clamping method is abandoned, the design of a locking device is saved, a pressing method that pressing force is applied by hands is adopted, machining is carried out on a common drilling machine, the problems that the part is damaged and scrapped due to clamping force is too large when the part is machined and the part is poor in rigidity and cannot be machined are solved, machining quality of the part is improved, machining efficiency is improved, occupation of high-precision equipment is reduced, and machining cost is reduced.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a top view of a clamping device for improving the machining quality of radial holes of fine shaft parts.
Fig. 2 is a view from a-a in fig. 1.
Fig. 3 is a schematic view of the structure of the target axis.
FIG. 4 is an application schematic diagram of a clamping device for improving the machining quality of radial holes of fine shaft parts.
Fig. 5 is a view from B-B of fig. 4.
Description of reference numerals:
1. a support arm; 2. drilling a sleeve; 3. a manual pressing plate; 4. a pin shaft; 5. a first guide hole; 6. a side plate; 7. a top plate; 8. a target axis; 9. a second guide hole; 10. a hemispherical protrusion; 11. a circular arc-shaped groove; 12. and (5) processing a radial hole.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the present invention, the upper, lower, left and right sides in the drawings are regarded as the upper, lower, left and right sides of the clamping device for improving the processing quality of the radial hole of the fine shaft part described in this specification.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The first embodiment:
the first embodiment of the invention relates to a clamping device for improving the processing quality of radial holes of fine shaft parts, which at least comprises a top plate 7 horizontally placed as shown in fig. 1 and fig. 2, wherein one side wall of the top plate 7 vertically extends downwards to form a side plate 6, the plate wall of the side plate 6 horizontally extends to form at least one support arm 1, and the support arm 1 and the top plate 7 are positioned on the same side of the side plate 6;
wherein, the first guide hole 5 that supplies the drill bit to stretch into is seted up to the plate wall of roof 7, the second guide hole 9 that supplies target axle 8 to run through the male is seted up to the plate wall of curb plate 6, the central axis mutually perpendicular of two guide holes, and the drill bit just to the radial hole 12 positions of treating of target axle 8 behind the first guide hole 5, manual clamp plate 3 is installed to support arm 1, the one end of manual clamp plate 3 articulates in support arm 1, the other end is unsettled, the plate wall of free end can butt in the axle head of radial hole 12 place of treating of target axle 8.
The working process of the clamping device for improving the machining quality of the radial holes of the small shaft parts is as follows:
inserting the target shaft 8 of the radial hole 12 to be processed into the second guide hole 9, enabling the shaft end of the radial hole 12 to be processed to be located right below the first guide hole 5, rotating the manual pressing plate 3 to enable the plate surface of the manual pressing plate to abut against the shaft end face of the radial hole 12 to be processed and to be pressed tightly, and enabling the drill bit to penetrate through the first guide hole 5 and drill into the position of the radial hole 12 to be processed of the target shaft 8 to perform drilling.
The structure of the target shaft 8 is shown in fig. 3, and the right end shaft end of the target shaft is a radial hole 12 to be processed, so that the target shaft 8 is small in structure, and the damage to the shaft is easily caused by adopting a traditional clamping method, but the embodiment adopts a pressing method of applying pressing force by hands to quickly press a processed part (the target shaft 8), the operation is simple, convenient and quick, taking fig. 5 as an example, after the target shaft 8 is placed in the second guide hole 9, the left end surface of the intermediate shaft of the target shaft is tightly attached to the right plate wall of the side plate 6, namely the right plate wall is used as a positioning surface to be in contact with the large end surface of the part, the part is positioned, the manual pressing plate 3 rotates counterclockwise by 90 degrees until the left end surface of the manual pressing plate 3 abuts against the right end surface of the target shaft 8, the manual pressing plate 3 is continuously pressed, the manual pressing plate 3 is tightly pressed with the target shaft 8.
The first guide hole 5 serves to guide the drill bit along the hole to ensure that the drill bit is positioned opposite the radial hole 12 to be machined of the target shaft 8, and also serves to restrict the drill bit within the hole to avoid deviation caused by drilling vibration.
The second guide hole 9 functions to provide support for the target shaft 8, and to press the target shaft 8 using the principle of leverage.
Manual clamp plate 3 can rotate around the pin joint, if put into the part or when processing is accomplished and need take out the part, rotate manual clamp plate 3 and do clockwise 90 gyration, if again if insert target axle 8 back in the second guiding hole 9, manual clamp plate 3 does anticlockwise 90 gyration, labour saving and time saving on the one hand, on the other hand has also reduced the processing cost.
Second embodiment:
the embodiment relates to a clamping device for improving the processing quality of radial holes of fine shaft parts, which at least comprises a top plate 7 horizontally placed, wherein one side wall of the top plate 7 vertically extends downwards to form a side plate 6, the plate wall of the side plate 6 horizontally extends to form at least one support arm 1, and the support arm 1 and the top plate 7 are positioned on the same side of the side plate 6, as shown in fig. 1 and 2;
wherein, the first guide hole 5 that supplies the drill bit to stretch into is seted up to the plate wall of roof 7, the second guide hole 9 that supplies target axle 8 to run through the male is seted up to the plate wall of curb plate 6, the central axis mutually perpendicular of two guide holes, and the drill bit just to the radial hole 12 positions of treating of target axle 8 behind the first guide hole 5, manual clamp plate 3 is installed to support arm 1, the one end of manual clamp plate 3 articulates in support arm 1, the other end is unsettled, the plate wall of free end can butt in the axle head of radial hole 12 place of treating of target axle 8.
As shown in fig. 2 and 5, the drill bushing 2 is embedded in the first guide hole 5, the drill bushing 2 is a hollow cylindrical body, the upper cylindrical surface of the drill bushing 2 is lower than the upper surface of the top plate 7, the lower cylindrical surface of the drill bushing 2 is located below the lower surface of the top plate 7, the upper and lower positions of the drill bushing 2 can be adjusted, the drill bushing 2 can be guided to be close to the surface of a part, the phenomenon of hole displacement during part processing is overcome, the hole can be directly drilled by using a drill without centering, the requirements of the size precision and the form and position tolerance of the part can be guaranteed by one-step processing, and the processing efficiency is improved.
If a vertical drill bushing is added in the clamping device, the vertical drill bushing can also be used for radial vertical drilling of small shaft parts.
The wall of the side plate 6 extends horizontally along the direction of the top plate 7 to form two parallel and opposite support arms 1, a manual pressing plate 3 parallel to the side plate 6 is erected between the two support arms 1, the bottom end of the manual pressing plate 3 is hinged to the two support arms 1, and the top of the manual pressing plate 3 is higher than the lower surface of the top plate 7, as shown in fig. 2, for a preferred scheme, the bottom end of the manual pressing plate 3 in fig. 2 is connected with the support arms 1 through a pin 4, that is, the manual pressing plate 3 can rotate around the pin 4.
Referring to fig. 5, a hemispherical protrusion 10 is arranged on the wall of the manual pressing plate 3 facing the second guiding hole 9, and the hemispherical protrusion 10 can abut against the shaft end of the target shaft 8; the wall of the manual pressing plate 3, which is far away from the hemispherical protrusion 10, is provided with an arc-shaped groove 11, the arc-shaped groove 11 and the hemispherical protrusion 10 are arranged opposite to the manual pressing plate 3, and the bottom end of the manual pressing plate 3 is semicircular along the section perpendicular to the plate surface direction.
When the clamping device is used, the clamping device is placed on a machine tool workbench, the manual pressing plate 3 is rotated to be erected, as shown in fig. 5, the hemispherical protrusion 10 abuts against the shaft end of the target shaft 8, the hemispherical protrusion 10 can ensure that the manual pressing plate 3 is in close contact with a part, uniform application of pressing force is guaranteed, the arc-shaped groove 11 conforms to the physiological structure characteristics of a human, the contact surface of fingers is enlarged, and the comfort level of an operator during operation is improved.
The third embodiment:
the embodiment provides a clamping device for improving the processing quality of radial holes of fine shaft parts, which at least comprises a top plate 7 which is horizontally placed, wherein one side wall of the top plate 7 vertically extends downwards to form a side plate 6, the plate wall of the side plate 6 horizontally extends to form at least one support arm 1, and the support arm 1 and the top plate 7 are positioned on the same side of the side plate 6;
wherein, the first guide hole 5 that supplies the drill bit to stretch into is seted up to the plate wall of roof 7, the second guide hole 9 that supplies target axle 8 to run through the male is seted up to the plate wall of curb plate 6, the central axis mutually perpendicular of two guide holes, and the drill bit just to the radial hole 12 positions of treating of target axle 8 behind the first guide hole 5, manual clamp plate 3 is installed to support arm 1, the one end of manual clamp plate 3 articulates in support arm 1, the other end is unsettled, the plate wall of free end can butt in the axle head of radial hole 12 place of treating of target axle 8.
The drill bush 2 is embedded in the first guide hole 5, the drill bush 2 is a hollow cylindrical body, the upper cylindrical surface of the drill bush 2 is lower than the upper surface of the top plate 7, and the lower cylindrical surface of the drill bush 2 is located below the lower surface of the top plate 7, so that the drill bush 2 is closer to the surface of a part, and the phenomenon of hole displacement during part processing is overcome.
The wall of the side plate 6 extends horizontally along the direction of the top plate 7 to form two parallel and opposite support arms 1, a manual pressing plate 3 parallel to the side plate 6 is erected between the two support arms 1, the bottom end of the manual pressing plate 3 is hinged with the two support arms 1, and the top of the manual pressing plate 3 is higher than the lower surface of the top plate 7.
The wall of the manual pressing plate 3, which is opposite to the second guiding hole 9, is provided with a hemispherical protrusion 10, and the hemispherical protrusion 10 can abut against the shaft end of the target shaft 8.
The wall of the manual pressing plate 3, which is far away from the hemispherical protrusion 10, is provided with an arc-shaped groove 11, the arc-shaped groove 11 and the hemispherical protrusion 10 are arranged opposite to the manual pressing plate 3, and the bottom end of the manual pressing plate 3 is semicircular along the section perpendicular to the plate surface direction.
Referring to fig. 4 and 5, the number of the first guide holes 5, the second guide holes 9 and the hemispherical protrusions 10 is equal, each first guide hole 5 is provided with a corresponding second guide hole 9, and each hemispherical protrusion 10 is opposite to the shaft end of the target shaft 8 in the second guide hole 9.
That is, in the present embodiment, two target shafts 8 may be drilled simultaneously, 2 target shafts 8 to be machined are inserted into 2 second guide holes 9, respectively, so that the shaft end of the radial hole 12 to be machined is located right below the first guide hole 5, the manual pressing plate 3 is rotated to make the plate surface of the manual pressing plate abut against and press the shaft end surface of the radial hole 12 to be machined, and the drill bit penetrates through the first guide hole 5 and drills into the position of the radial hole 12 to be machined of the target shaft 8, so as to perform drilling.
The clamping device utilizes the lever principle, so that two processing parts are mutually taken as fulcrums, the two parts are processed at one time, the processing efficiency of the parts is improved, and the problem of poor cantilever rigidity of the parts is successfully solved due to the adoption of a mode of compressing the end faces of the parts, the structural rigidity of the parts is improved, the processing deformation of the parts is reduced, and the processing quality of the parts is improved.
Fourth embodiment:
the embodiment provides a clamping method for improving the machining quality of radial holes of fine shaft parts, which at least comprises a clamping device for improving the machining quality of the radial holes of the fine shaft parts, and the clamping method comprises the following steps:
inserting the target shaft 8 of the radial hole 12 to be processed into the second guide hole 9, enabling the shaft end of the radial hole 12 to be processed to be located right below the first guide hole 5, rotating the manual pressing plate 3 to enable the plate surface of the manual pressing plate to abut against the shaft end face of the radial hole 12 to be processed and to be pressed tightly, and enabling the drill bit to penetrate through the first guide hole 5 and drill into the position of the radial hole 12 to be processed of the target shaft 8 to perform drilling.
The method specifically comprises the following steps:
step 001, inserting the two target shafts 8 of the radial holes 12 to be processed into the two second guide holes 9 respectively, so that the shaft end of each target shaft 8 where the radial hole 12 to be processed is located is positioned right below the corresponding first guide hole 5;
step 002, rotating the manual pressing plate 3 to enable the hemispherical protrusion 10 to abut against the shaft end face where the radial hole 12 to be processed is located, and meanwhile pressing the arc-shaped groove 11 by the fingers of an operator to tightly press the target shaft 8;
step 003, drilling the position of the radial hole 12 to be processed by the drill bit through the drill bushing 2 to drill a hole;
and step 004, rotating the manual pressing plate 3 to enable the manual pressing plate 3 to be separated from the target shaft 8, taking down the target shaft 8, and finishing the processing.
The clamping device at least comprises a top plate 7 which is horizontally placed, one side wall of the top plate 7 vertically extends downwards to form a side plate 6, the plate wall of the side plate 6 horizontally extends to form at least one support arm 1, and the support arm 1 and the top plate 7 are positioned on the same side of the side plate 6;
wherein, the first guide hole 5 that supplies the drill bit to stretch into is seted up to the plate wall of roof 7, the second guide hole 9 that supplies target axle 8 to run through the male is seted up to the plate wall of curb plate 6, the central axis mutually perpendicular of two guide holes, and the drill bit just to the radial hole 12 positions of treating of target axle 8 behind the first guide hole 5, manual clamp plate 3 is installed to support arm 1, the one end of manual clamp plate 3 articulates in support arm 1, the other end is unsettled, the plate wall of free end can butt in the axle head of radial hole 12 place of treating of target axle 8.
The drill bush 2 is embedded in the first guide hole 5, the drill bush 2 is a hollow cylindrical body, the upper cylindrical surface of the drill bush 2 is lower than the upper surface of the top plate 7, and the lower cylindrical surface of the drill bush 2 is located below the lower surface of the top plate 7.
The wall of the side plate 6 extends horizontally along the direction of the top plate 7 to form two parallel and opposite support arms 1, a manual pressing plate 3 parallel to the side plate 6 is erected between the two support arms 1, the bottom end of the manual pressing plate 3 is hinged with the two support arms 1, and the top of the manual pressing plate 3 is higher than the lower surface of the top plate 7.
The wall of the manual pressing plate 3, which is opposite to the second guiding hole 9, is provided with a hemispherical protrusion 10, and the hemispherical protrusion 10 can abut against the shaft end of the target shaft 8.
The wall of the manual pressing plate 3, which is far away from the hemispherical protrusion 10, is provided with an arc-shaped groove 11, the arc-shaped groove 11 and the hemispherical protrusion 10 are arranged opposite to the manual pressing plate 3, and the bottom end of the manual pressing plate 3 is semicircular along the section perpendicular to the plate surface direction.
The number of the first guide holes 5, the number of the second guide holes 9 and the number of the hemispherical bulges 10 are equal, each first guide hole 5 is provided with the corresponding second guide hole 9, and each hemispherical bulge 10 is opposite to the shaft end of the target shaft 8 in the second guide hole 9.
The invention makes full use of the characteristics of small self structure of the processed part, small cutting force generated by processing and small clamping force required by the processing, abandons the traditional processing method, adopts manual clamping and processes on a common drilling machine, solves the problems that the part is damaged and scrapped by clamping due to overlarge clamping force during the processing of the part and the part has poor rigidity and is out of tolerance after being processed, improves the processing quality of the part, improves the processing efficiency and reduces the processing cost, and the device has simple and economic manufacture.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims (8)

1. The clamping device for improving the processing quality of the radial holes of the fine shaft parts is characterized by at least comprising a top plate (7) which is horizontally placed, wherein one side wall of the top plate (7) vertically extends downwards to form a side plate (6), the plate wall of the side plate (6) horizontally extends to form at least one support arm (1), and the support arm (1) and the top plate (7) are positioned on the same side of the side plate (6);
the drill bit is provided with a first guide hole (5) for the drill bit to extend into, a second guide hole (9) for the target shaft (8) to penetrate through and insert is formed in the wall of the top plate (7), the central axes of the two guide holes are perpendicular to each other, the drill bit is right aligned to the position of a radial hole (12) to be processed of the target shaft (8) after passing through the first guide hole (5), the support arm (1) is provided with a manual pressing plate (3), one end of the manual pressing plate (3) is hinged to the support arm (1), the other end of the manual pressing plate is suspended, and the wall of the suspended end can abut against the shaft end of the radial hole (12) to be processed of the target shaft (8).
2. The clamping device for improving the processing quality of the radial holes of the fine shaft parts as claimed in claim 1, wherein: the drill bush (2) is embedded in the first guide hole (5), the drill bush (2) is a hollow cylindrical body, the upper cylindrical surface of the drill bush (2) is lower than the upper surface of the top plate (7), and the lower cylindrical surface of the drill bush (2) is located below the lower surface of the top plate (7).
3. The clamping device for improving the processing quality of the radial holes of the fine shaft parts as claimed in claim 2, wherein: the wall of curb plate (6) extends along the direction level at roof (7) place and forms two mutual parallel and relative support arm (1), has vertical manual clamp plate (3) that are on a parallel with curb plate (6) between two support arms (1), and the bottom of manual clamp plate (3) is articulated with two support arms (1) respectively, and the board top of manual clamp plate (3) is higher than the lower surface of roof (7).
4. The clamping device for improving the processing quality of the radial holes of the fine shaft parts as claimed in claim 3, wherein: and a hemispherical bulge (10) is arranged on the plate wall of the manual pressing plate (3) opposite to the second guide hole (9), and the hemispherical bulge (10) can be abutted against the shaft end of the target shaft (8).
5. The clamping device for improving the processing quality of the radial holes of the fine shaft parts as claimed in claim 4, wherein: the wall of the manual pressing plate (3) departing from the hemispherical protrusion (10) is provided with an arc-shaped groove (11), the arc-shaped groove (11) and the hemispherical protrusion (10) are arranged opposite to the manual pressing plate (3), and the bottom end of the manual pressing plate (3) is semicircular along the section perpendicular to the plate surface direction.
6. The clamping device for improving the processing quality of the radial holes of the fine shaft parts as claimed in claim 4, wherein: the number of the first guide holes (5), the number of the second guide holes (9) and the number of the hemispherical bulges (10) are equal, each first guide hole (5) is provided with the corresponding second guide hole (9), and each hemispherical bulge (10) is over against the shaft end of the target shaft (8) in the second guide hole (9).
7. A clamping method for improving the processing quality of radial holes of fine shaft parts is characterized by at least comprising the clamping device for improving the processing quality of the radial holes of the fine shaft parts as claimed in any one of claims 1 to 6, wherein the clamping method comprises the following steps:
inserting a target shaft (8) of a radial hole (12) to be machined into a second guide hole (9), enabling the shaft end of the radial hole (12) to be machined to be located right below a first guide hole (5), rotating a manual pressing plate (3) to enable the plate surface of the manual pressing plate to be abutted to the shaft end face of the radial hole (12) to be machined and to be pressed tightly, enabling a drill bit to penetrate through the first guide hole (5) and drill into the position of the radial hole (12) to be machined of the target shaft (8), and drilling.
8. The clamping method for improving the processing quality of the radial holes of the fine shaft parts as claimed in claim 7, characterized by comprising the following steps:
step 001, inserting two target shafts (8) of radial holes (12) to be machined into two second guide holes (9) respectively, and enabling the shaft end of each target shaft (8) where the radial hole (12) to be machined is located to be located right below the corresponding first guide hole (5);
step 002, rotating the manual pressing plate (3) to enable the hemispherical protrusion (10) to abut against the shaft end face where the radial hole (12) to be processed is located, and meanwhile pressing the arc-shaped groove (11) by the fingers of an operator to tightly press the target shaft (8);
step 003, drilling the position of the radial hole (12) to be processed by the drill bit through the drill bushing (2) to drill a hole;
and step 004, rotating the manual pressing plate (3), separating the manual pressing plate (3) from the target shaft (8), taking down the target shaft (8), and finishing the processing.
CN202011349087.5A 2020-11-26 2020-11-26 Clamping device and method for improving machining quality of radial hole of fine shaft part Pending CN112404524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011349087.5A CN112404524A (en) 2020-11-26 2020-11-26 Clamping device and method for improving machining quality of radial hole of fine shaft part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011349087.5A CN112404524A (en) 2020-11-26 2020-11-26 Clamping device and method for improving machining quality of radial hole of fine shaft part

Publications (1)

Publication Number Publication Date
CN112404524A true CN112404524A (en) 2021-02-26

Family

ID=74842182

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011349087.5A Pending CN112404524A (en) 2020-11-26 2020-11-26 Clamping device and method for improving machining quality of radial hole of fine shaft part

Country Status (1)

Country Link
CN (1) CN112404524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113211114A (en) * 2021-05-12 2021-08-06 武汉轻工大学 Workpiece machining clamp and machine tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006026864A (en) * 2004-07-21 2006-02-02 Jiichi Muraki Fine working device
CN101817093A (en) * 2010-04-08 2010-09-01 昆明电机厂有限公司 Tool and method for turning larger-interior and smaller-exterior shaft hole
CN204171402U (en) * 2014-10-16 2015-02-25 西安北方光电科技防务有限公司 For the drill jig of little shaft parts drill hole
CN105618820A (en) * 2016-04-07 2016-06-01 贵州航瑞科技有限公司 Adjustable shaft part drilling jig

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006026864A (en) * 2004-07-21 2006-02-02 Jiichi Muraki Fine working device
CN101817093A (en) * 2010-04-08 2010-09-01 昆明电机厂有限公司 Tool and method for turning larger-interior and smaller-exterior shaft hole
CN204171402U (en) * 2014-10-16 2015-02-25 西安北方光电科技防务有限公司 For the drill jig of little shaft parts drill hole
CN105618820A (en) * 2016-04-07 2016-06-01 贵州航瑞科技有限公司 Adjustable shaft part drilling jig

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113211114A (en) * 2021-05-12 2021-08-06 武汉轻工大学 Workpiece machining clamp and machine tool

Similar Documents

Publication Publication Date Title
CN207824449U (en) A kind of orthodrome sheet type amplifier part clamp for cutting
CN201573058U (en) Inclined hole processing fixture of deep hole drilling machine
CN112404524A (en) Clamping device and method for improving machining quality of radial hole of fine shaft part
CN103418997B (en) A kind of processing method of suspension bridge pin joint rope clip
CN212312387U (en) Cambered surface drilling device
CN211866676U (en) Drilling jig for machining holes in two directions for conical shaft parts
CN111941660A (en) Device and method for drilling on cambered surface
CN110253051A (en) Valve cabinet drilling tool
CN207681551U (en) A kind of drilling jig gripper
CN215392646U (en) Drilling clamp for flange plate of half-shaft sleeve
CN209754641U (en) special fixture for drilling high-precision spherical hole on swinging arm piece
CN207840223U (en) For boring process unit of the small axle diameter to hole
CN113084222A (en) A reaming device for work piece hole
CN208945306U (en) A kind of intelligent numerical control machine tool for pipe cutting
CN217019473U (en) Outer ring gear punches and uses fixed frock
CN212444224U (en) Fixed frock of drilling machine
CN206083939U (en) A special fixture for processing hinge hole
CN210412703U (en) Valve cabinet drilling tool
CN107931968A (en) The hole forming method of multiple surface assembled body
CN216359436U (en) Pneumatic head piston hole machining clamp
CN217096657U (en) Machining tool for spindle of spindle machine
CN213164148U (en) Precise turning structure
CN214641687U (en) Drilling and tapping device
CN220312602U (en) Drilling tool for deep hole drilling machine tool
CN215903798U (en) Auxiliary positioning device for positioning drill bit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210226