CN114131398B - High-precision quick-change machining tool and machining method for positioning trapezoid cross key groove - Google Patents
High-precision quick-change machining tool and machining method for positioning trapezoid cross key groove Download PDFInfo
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- CN114131398B CN114131398B CN202111592701.5A CN202111592701A CN114131398B CN 114131398 B CN114131398 B CN 114131398B CN 202111592701 A CN202111592701 A CN 202111592701A CN 114131398 B CN114131398 B CN 114131398B
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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
- B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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Abstract
The high-precision quick-change machining tool for positioning the trapezoid cross-shaped key groove is characterized by comprising a base (1) and a quick-change base plate (2), wherein the upper part of the quick-change base plate (2) is designed into a shape which is easy to be connected with a product to be machined and is used for being connected with the product to be machined; the lower part of the quick-change base plate (2) is embedded and connected with the upper surface of the base (1), and the lower surface of the base (1) is connected with a machine tool. The invention can establish standard interfaces between processes and between machine tools. After the product to be processed is clamped outside the machine tool once, the quick and accurate positioning can be realized in the multi-process processing. The invention can realize quick and accurate positioning no matter the tray, the workpiece and the clamp are combined, the repeated positioning precision can reach within 0.01mm, and the quick change time is less than 3 minutes.
Description
Technical Field
The invention discloses a high-precision quick-change machining tool and a machining method for positioning a trapezoid cross-shaped key groove, belongs to the technical field of machining tool fixture design, and particularly relates to a novel high-precision quick-change machining tool and a novel machining method.
Background
Important parts in the aerospace field, such as a cabin body, an installation plate and the like, are generally complex in structure, high in precision requirement, complex in production process and high in clamping frequency. At present, the mode of direct clamping alignment is usually adopted to this type of part on the lathe workstation, and clamping alignment and dismantlement all need be gone on the lathe at every turn, lead to lathe rate of utilization and machining efficiency low. Moreover, the alignment precision is greatly influenced by human factors, the product quality is not easy to control, and the production beat is not stable. Therefore, there is a need for a high precision tooling fixture that can reduce the number of repeated clamping and can be quickly replaced.
Disclosure of Invention
The invention aims to provide a high-precision quick-change machining tool and a machining method for positioning a trapezoid cross-shaped key groove, so that repeated butt joint calibration of a product to be machined and a plurality of machine tools is avoided, the utilization rate of the machine tools is improved, and the positioning precision of the product is improved.
A high-precision quick-change machining tool for positioning a trapezoid cross-shaped key groove is characterized by comprising a base 1 and a quick-change base plate 2, wherein the upper part of the quick-change base plate 2 is designed into a shape which is easy to be connected with a product to be machined and is used for being connected with the product to be machined; the lower part of the quick-change base plate 2 is embedded and connected with the upper surface of the base 1, and the lower surface of the base 1 is connected with a machine tool.
The base 1 is cylindrical, two mutually perpendicular trapezoidal cross grooves 11 are formed in the upper surface of the cylinder, the trapezoidal cross grooves 11 are divided into a first trapezoidal groove 111 and a second trapezoidal groove 112, the first trapezoidal groove 111 and the second trapezoidal groove 112 are mutually perpendicular and crossed, and the first trapezoidal groove 111 and the second trapezoidal groove 112 both pass through the center point of the upper surface of the cylinder; rectangular grooves 12 are formed in both sides of the first trapezoidal groove 111 and the second trapezoidal groove 112, that is, a first rectangular groove 121 and a second rectangular groove 122 are formed in both sides of the first trapezoidal groove 111, and a third rectangular groove 123 and a second rectangular groove 124 are formed in both sides of the second trapezoidal groove 112; the upper surface of the base 1 is provided with a plurality of concentric annular grooves 13 or a part of the annular grooves 13 which take the central point of the cylindrical upper surface as the center, and the trapezoidal cross grooves 11 and the rectangular grooves 12 are cut by the annular grooves 13;
a plurality of pull rod hole parts 14 are further arranged at the upper part of the cylinder, and each pull rod hole part 14 comprises a pull rod screw unthreaded hole 141, a cam pull rod hole 142 and an elastic retainer hole 143; a cam pull rod 6 is arranged in the cam pull rod hole 142, and a hole circlip 7 connected to the cam pull rod 6 is arranged in the circlip hole 143; correspondingly, a pull rod screw hole 22 is arranged on the quick-change base plate 2; the upper part of the pull rod screw 4 is spirally connected in the pull rod screw hole 22;
a trapezoidal cross key 21 corresponding to the trapezoidal cross groove 11 of the base 1 is arranged on the lower surface of the quick-change base plate 2;
when the quick-change substrate 2 and the base 1 are connected in an embedded mode through the pull rod screws 4, the trapezoid cross grooves 11 are in embedded connection with the trapezoid cross keys 21, the lower portions of the pull rod screws 4 are inserted into the corresponding pull rod screw unthreaded holes 141 of the base 1, and the pull rod screws 4 are embedded together through the cam pull rods 6.
The base 1 is also provided with an inner hexagonal positioning screw 5; the socket head cap positioning screw 5 is arranged in a positioning screw hole of the quick-change base plate 2 and used for limiting the direction of the pull rod screw.
The first trapezoidal groove 111 and the second trapezoidal groove 112 have the same taper angle, and the taper angle is 14-18 degrees.
A high-precision quick-change machining method for trapezoidal cross-shaped key groove positioning comprises the following steps:
firstly, manufacturing a base 1 and a quick-change substrate 2 which can be quickly embedded, connected and separated;
step two, fixedly connecting a plurality of identical bases 1 to a machine tool for processing products to be processed respectively;
thirdly, connecting a product to be processed at a set position on the upper part of the quick-change substrate 2;
quickly embedding and connecting the quick-change base plate 2 to a base 1 of a machine tool in a first procedure of products to be processed, and after the quick-change base plate is installed, processing the products to be processed by the machine tool; after the working procedure is finished, quickly separating the quick-change substrate 2 connected with the product to be processed from the base 1;
fifthly, mounting the quick-change base plate 2 connected with the product to be processed on a base 1 of the machine tool in the next process, and after the quick-change base plate is mounted, processing the product to be processed by the machine tool; after the working procedure is finished, quickly separating the quick-change base plate 2 connected with the product to be processed from the base 1;
sixthly, repeating the fifth step until the working procedure needing to be processed on the upper part of the product to be processed is completed, and separating the product to be processed from the quick-change substrate 2;
and seventhly, finishing the processing procedure of the product to be processed.
The base 1 and the quick-change base plate 2 are connected by arranging a trapezoidal cross groove 11 on the upper surface of the base 1, arranging a trapezoidal cross key 21 on the lower surface of the corresponding quick-change base plate 2, and arranging rectangular grooves 12 on two sides of the trapezoidal cross groove 11.
The upper surface of the base 1 is provided with a plurality of concentric annular grooves 13 or a part of the annular grooves 13 which take the center point of the cylindrical upper surface as the center.
The upper surface of the base 1 is provided with an inner hexagonal positioning screw 5, and an inner hexagonal positioning screw hole is arranged at a corresponding position on the lower surface of the quick-change base plate 2.
Has the beneficial effects that:
the invention designs a base 1 and a quick-change base plate 2 which can be quickly and accurately positioned and connected, one is connected on a machine tool, and the other is connected on a product to be processed, so that the product to be processed can be installed on the machine tool and quickly taken down. After the product to be processed is clamped outside the machine tool once, the quick and accurate positioning can be realized in the multi-process processing. The invention can realize quick and accurate positioning no matter the tray, the workpiece and the clamp are combined, the repeated positioning precision can reach within 0.01mm, and the quick change time is less than 3 minutes.
In particular, in the embodiment of the invention, the positioning mode of the trapezoid cross key groove is adopted, the requirement on the part machining precision is ensured, and the product machining quality is improved. A plurality of sets of quick-change substrates 2 are alternately used, and parts are clamped and disassembled outside a working area of the machine tool, so that the parts can be clamped and aligned without stopping the machine tool, and the utilization rate and the production efficiency of the machine tool are improved. The invention has wide application range; the machine tool is suitable for machining various structural parts.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural diagram of the base 1 of the present invention;
fig. 3 is a schematic structural view of the quick-change base plate 2 according to the present invention;
FIG. 4 is a schematic view of the initial state of the pull rod portion of the present invention;
FIG. 5 is a schematic view of the tension rod portion of the present invention in a tensioned state;
fig. 6 is an enlarged cross-sectional view of the quick-change substrate and the base 1 in an initial state according to the present invention;
fig. 7 is an enlarged sectional view of the quick-change substrate and the base 1 in the positioning state.
Wherein, 1 is a base 1, 11 is a trapezoid cross groove, 111 is a first trapezoid cross groove, 112 is a second trapezoid cross groove, 12 is a rectangular groove, 121 is a first rectangular groove, 122 is a second rectangular groove, 123 is a third rectangular groove, 124 is a fourth rectangular groove, 13 is an annular groove, 14 is a draw rod hole, 141 is a draw rod screw unthreaded hole, 142 is a cam draw rod hole, 143 is an elastic retainer ring hole, 15 is a circumferential groove, 2 is a quick-change substrate, 21 is a trapezoidal cross key, 211 is a first trapezoidal key, 212 is a second trapezoidal key, 22 is a pull rod screw hole, 221 is a pull rod screw hole, 222 is a positioning screw hole, 3 is a pull rod assembly, 4 is a pull rod screw, 5 is an inner hexagonal positioning screw, 6 is a cam pull rod, and 7 is a circlip for the hole.
Detailed Description
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high accuracy quick change frock of trapezoidal cross keyway location which characterized in that includes: base 1, quick change base plate, the pull rod subassembly that is used for quick locking.
The base 1 is made of aluminum alloy and is provided with a trapezoidal cross groove 11 part, a rectangular groove part, an annular groove part, a pull rod hole part and a circumferential groove.
The trapezoid cross slot 11 comprises a first trapezoid slot and a second trapezoid slot perpendicular to the first trapezoid slot, and the first trapezoid slot and the second trapezoid slot are symmetrical about two mutually perpendicular center lines of the upper end face of the base 1.
A first rectangular groove and a second rectangular groove which are parallel to the central line are arranged on two sides of the first trapezoidal groove, and a third rectangular groove and a fourth rectangular groove which are parallel to the central line are arranged on two sides of the second trapezoidal groove.
The upper end face of the base 1 is provided with an inner annular groove and a plurality of annular grooves, and the annular grooves cut the trapezoidal grooves and the rectangular grooves.
The pull rod hole part comprises a plurality of pull rod screw unthreaded holes, a cam pull rod hole and an elastic retainer ring hole.
The circumferential groove is used for placing an interface for connecting the base 1 and the machine tool workbench.
Further, the first trapezoidal groove and the second trapezoidal groove are through grooves.
Further, the taper angles of the first trapezoidal groove and the second trapezoidal groove are the same, and the taper angle is 14-18 degrees.
Furthermore, the pull rod screw hole and the cam pull rod hole avoid the positions of the trapezoidal cross groove 11 and the rectangular groove.
Further, the pull rod screw holes are distributed on the same circumference.
The quick-change base plate is made of metal and is provided with a trapezoidal cross key part and a pull rod screw hole part.
The trapezoidal cross key has the same taper angle with the trapezoidal cross groove 11 on the base 1, and the trapezoidal cross key part comprises a first trapezoidal key and a second trapezoidal key vertical to the first trapezoidal key; the first trapezoidal key and the second trapezoidal key are symmetrical about two mutually perpendicular center lines on the quick-change substrate, two side faces of the first trapezoidal key are in clearance fit with two side faces of the first trapezoidal groove, and two side faces of the second trapezoidal key are in clearance fit with two side faces of the second trapezoidal groove.
The pull rod screw hole part comprises a pull rod screw hole and a positioning screw hole, and the pull rod screw hole is superposed with the central line of the pull rod screw unthreaded hole on the base 1.
Furthermore, the height of the trapezoid cross key is 0.5-1 mm lower than that of the trapezoid cross groove 11.
The pull rod screw part comprises a pull rod screw, an inner hexagonal positioning screw, a cam pull rod and a circlip for a hole, and all standard products are sold.
And the pull rod screws are correspondingly arranged in the pull rod threaded holes of the quick-change base plate and the pull rod screw threaded holes on the base 1.
The socket head cap positioning screw is arranged in a positioning screw hole of the quick-change base plate and used for limiting the direction of the pull rod screw.
The cam pull rod is arranged in a cam pull rod hole on the base 1.
The hole circlip is used for limiting the axial displacement of the cam pull rod and is arranged in the hole circlip on the base 1.
Furthermore, pull rod screw holes in the quick-change base plate and the base 1 are in clearance fit with the pull rod screws, so that the pull rod screws can smoothly rotate in the holes.
Furthermore, the cam pull rod hole on the base 1 is in clearance fit with the cam pull rod, so that the cam pull rod can smoothly rotate in the hole.
The first embodiment is as follows:
a use method of a high-precision quick-change tool for positioning of a trapezoid cross-shaped key groove comprises the following steps:
1) Fixing the base 1: the method comprises the following steps that a base 1 is clamped and fixed on a machine tool workbench through a pressing plate, a cam pull rod is installed in a cam pull rod hole in the base 1, the cam pull rod is rotated to enable a semicircular notch of the cam pull rod to be aligned with a pull rod screw unthreaded hole, a pull rod screw is waited to be installed, and a hole is installed in an elastic retainer ring hole in the base 1 through an elastic retainer ring;
2) Installing a pull rod screw: installing a pull rod screw in a pull rod threaded hole of the quick-change base plate, completely screwing the pull rod screw threaded part into the pull rod threaded hole, forming a complete circle by rotating the pull rod screw to form a small notch on the pull rod screw and a positioning screw hole on the quick-change base plate, and installing an inner hexagon screw in the positioning screw hole to fix the direction of the pull rod screw;
3) Clamping a workpiece: mounting a part to be processed on a quick-change substrate by using a pressing plate, wherein the quick-change substrate can be provided with positioning surfaces according to parts with different structures;
4) Installing a quick-change substrate: a pull rod screw installed on a quick-change substrate is aligned with a pull rod screw unthreaded hole in a base 1 and installed in the hole, at the moment, the side face of a trapezoidal cross key on the quick-change substrate is in contact with the side face of a trapezoidal cross groove 11 on the base 1, a gap exists between the end face of the quick-change substrate and the end face of the base 1, a cam pull rod is rotated clockwise by 180 degrees, at the moment, the arc face of the cam pull rod is in contact with the semicircular face of the pull rod screw, the pull rod screw is enabled to generate downward displacement, the end face of the quick-change substrate is in contact with the end face of the base 1, an axial positioning face is formed, the trapezoidal cross key extrudes the trapezoidal cross groove 11 under the downward force to enable the trapezoidal cross groove 11 to be in close contact, the trapezoidal cross groove 11 is slightly stretched towards two sides, and a positioning angular face of the quick-change substrate and the reference is formed.
5) Disassembling the quick-change substrate: when the quick-change base plate needs to be replaced, the cam pull rod is rotated clockwise by 180 degrees, the semicircular notch of the cam pull rod is aligned with the pull rod screw hole, and the quick-change base plate is lifted upwards to be detached from the base 1.
Example two:
while the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the invention may be more readily understood by those skilled in the art, it is to be noted that the disclosed embodiments are intended to assist in further understanding of the invention and that various alternatives and modifications are possible without departing from the spirit and scope of the invention and appended claims. Therefore, the invention should not be limited to the embodiments disclosed, but the scope of the invention is defined by the appended claims.
Fig. 1 shows that high accuracy quick change frock of trapezoidal cross keyway location includes: the base 1 is connected with the lathe, with base 1 complex quick change base plate, be used for the pull rod subassembly of quick change base plate.
Fig. 2 shows a base 1 for connection to a machine tool, which is made of an aluminum alloy and is provided with a trapezoidal cross groove 11 portion, a rectangular groove portion, an annular groove portion, a drawbar hole portion and a circumferential groove.
First dovetail groove both sides are provided with first rectangular channel and the second rectangular channel parallel with the central line, second dovetail groove both sides are provided with third rectangular channel and the fourth rectangular channel parallel with the central line, and the rectangular channel width is 3mm.
The upper end face of the base is provided with an inner annular groove and a plurality of annular grooves, and the trapezoidal grooves and the rectangular grooves are cut by the annular grooves.
The pull rod hole parts are distributed on the same circumference and avoid the positions of the trapezoidal cross grooves and the rectangular grooves, and the pull rod hole parts comprise a plurality of pull rod screw unthreaded holes, cam pull rod holes and elastic retainer ring holes.
The circumferential groove is used for placing an interface for connecting the base and the machine tool workbench.
Fig. 3 shows a quick-change substrate made of metal and provided with a trapezoidal cross key portion and a pull rod screw hole portion.
The trapezoidal cross key has the same taper angle with the trapezoidal cross groove on the base, the height of the trapezoidal cross key is 1mm lower than that of the trapezoidal cross groove, and the trapezoidal cross key part comprises a first trapezoidal key and a second trapezoidal key vertical to the first trapezoidal key; the first trapezoidal key and the second trapezoidal key are symmetrical about two mutually perpendicular center lines on the quick-change substrate, two side faces of the first trapezoidal key are in clearance fit with two side faces of the first trapezoidal groove, and two side faces of the second trapezoidal key are in clearance fit with two side faces of the second trapezoidal groove.
The pull rod screw hole part comprises a pull rod screw hole and a positioning screw hole, and the pull rod screw hole is superposed with the central line of the pull rod screw unthreaded hole on the base.
Fig. 4-5 show the draw bar screw portion, including the draw bar screw, socket head set screw, cam draw bar and circlip for the hole, all sold as standard products.
The pull rod screw is correspondingly installed in a pull rod threaded hole of the quick-change substrate and a pull rod screw thread hole on the base, and the pull rod screw holes on the quick-change substrate and the base are in clearance fit with the pull rod screw, so that the pull rod screw can smoothly rotate in the hole.
The socket head cap positioning screw is arranged in a positioning screw hole of the quick-change base plate and used for limiting the direction of the pull rod screw.
The cam pull rod is arranged in a cam pull rod hole on the base, and the cam pull rod hole on the base is in clearance fit with the cam pull rod, so that the cam pull rod can smoothly rotate in the hole.
The hole circlip is used for limiting the axial displacement of the cam pull rod and is arranged in the hole circlip on the base 1.
When the tool is used, a base 1 is fixed on a machine tool workbench through clamping of a pressing plate, a cam pull rod is installed in a cam pull rod hole in the base, a semicircular opening of the cam pull rod is aligned to a pull rod screw unthreaded hole through rotation of the cam pull rod, installation of a pull rod screw is waited, and a circlip for the hole is installed in a circlip hole in the base.
The pull rod screw is installed in the pull rod threaded hole of the quick-change base plate, the pull rod screw threaded part is completely screwed into the pull rod threaded hole, the small notch on the pull rod screw and the positioning screw hole on the quick-change base plate form a complete circle by rotating the pull rod screw, and the inner hexagon screw is installed in the positioning screw hole, so that the direction of the pull rod screw is fixed.
The part to be processed is installed on the quick-change base plate by using the pressing plate, and the positioning surface of the quick-change base plate can be arranged according to different structural parts.
Aligning a draw bar screw arranged on the quick-change substrate with a draw bar screw unthreaded hole on the base and installing the draw bar screw in the hole, wherein at the moment, the side surface of a trapezoidal cross key on the quick-change substrate is contacted with the side surface of a trapezoidal cross groove on the base, and a gap exists between the end surface of the quick-change substrate and the end surface of the base, which is shown in fig. 4 and 6; the cam pull rod is rotated clockwise by 180 degrees, at the moment, the arc surface of the cam pull rod is in contact with the semi-circle surface of the pull rod screw, the pull rod screw is enabled to generate downward displacement, the end surface of the quick-change substrate is in contact with the end surface of the base to form an axial positioning surface, the trapezoid cross key extrudes the trapezoid cross groove under the downward force to enable the trapezoid cross groove to be in close contact, the trapezoid cross groove slightly stretches towards two sides, and an angular positioning surface for quickly changing the substrate and the reference is formed, and the view is shown in figures 5 and 7.
When the quick-change base plate needs to be replaced, the cam pull rod is rotated clockwise by 180 degrees, the semicircular notch of the cam pull rod is aligned with the pull rod screw unthreaded hole, and the quick-change base plate is lifted upwards to be detached from the base 1.
Claims (6)
1. The high-precision quick-change machining tool for positioning the trapezoid cross-shaped key groove is characterized by comprising a base (1) and a quick-change base plate (2), wherein the upper part of the quick-change base plate (2) is designed into a shape which is easy to be connected with a product to be machined and is used for being connected with the product to be machined; the lower part of the quick-change base plate (2) is embedded and connected with the upper surface of the base (1), and the lower surface of the base (1) is connected with a machine tool;
the base (1) is cylindrical, two trapezoidal cross grooves (11) which are perpendicular to each other are formed in the upper surface of the cylinder, each trapezoidal cross groove (11) is divided into a first trapezoidal groove (111) and a second trapezoidal groove (112), the first trapezoidal groove (111) and the second trapezoidal groove (112) are perpendicular to each other and intersect with each other, and the first trapezoidal groove (111) and the second trapezoidal groove (112) pass through the central point of the upper surface of the cylinder; rectangular grooves (12) are arranged on two sides of the first trapezoidal groove (111) and the second trapezoidal groove (112), namely a first rectangular groove (121) and a second rectangular groove (122) are formed on two sides of the first trapezoidal groove (111), and a third rectangular groove (123) and a fourth rectangular groove (124) are formed on two sides of the second trapezoidal groove (112); the upper surface of the base (1) is provided with a plurality of concentric annular grooves (13) taking the center point of the cylindrical upper surface as the center of a circle or a part of the annular grooves (13), and the trapezoidal cross grooves (11) and the rectangular grooves (12) are cut by the annular grooves (13);
the upper part of the cylinder is also provided with a plurality of pull rod hole parts (14), and each pull rod hole part (14) comprises a pull rod screw unthreaded hole (141), a cam pull rod hole (142) and an elastic retainer ring hole (143); a cam pull rod (6) is arranged in the cam pull rod hole (142), and a hole circlip (7) connected to the cam pull rod (6) is arranged in the circlip hole (143); correspondingly, a pull rod screw hole (22) is arranged on the quick-change base plate (2); the upper part of the pull rod screw (4) is spirally connected in the pull rod screw hole (22);
a trapezoidal cross key (21) corresponding to the trapezoidal cross groove (11) of the base (1) is arranged on the lower surface of the quick-change base plate (2);
when the quick-change base plate (2) is connected with the base (1) in an embedded mode through the pull rod screw (4), the trapezoid cross groove (11) is embedded with the trapezoid cross key (21), the lower portion of the pull rod screw (4) is inserted into the corresponding pull rod screw unthreaded hole (141) of the base (1), and the pull rod screw (4) is embedded together through the cam pull rod (6);
the base (1) is also provided with an inner hexagonal positioning screw (5); the socket head cap positioning screw (5) is arranged in a positioning screw hole of the quick-change base plate (2) and used for limiting the direction of a pull rod screw.
2. The high-precision quick-change machining tool for trapezoidal cross-shaped key groove positioning as claimed in claim 1, wherein the taper angles of the first trapezoidal groove (111) and the second trapezoidal groove (112) are the same, and the taper angles are 14-18 °.
3. A high-precision quick-change machining method for trapezoidal cross key groove positioning utilizes the high-precision quick-change machining tool for trapezoidal cross key groove positioning in claim 1 to carry out quick-change machining, and comprises the following steps:
firstly, manufacturing a base (1) and a quick-change substrate (2) which can be quickly embedded and connected and quickly separated;
step two, respectively and fixedly connecting a plurality of identical bases (1) to a machine tool for processing a product to be processed;
thirdly, connecting a product to be processed at a set position on the upper part of the quick-change base plate (2);
quickly embedding and connecting the quick-change base plate (2) to a base (1) of a machine tool of a first process of a product to be processed, and after the quick-change base plate is installed, processing the product to be processed by the machine tool; after the working procedure is finished, quickly separating the quick-change base plate (2) connected with the product to be processed from the base (1);
fifthly, mounting the quick-change base plate (2) connected with the product to be processed on a base (1) of the machine tool in the next procedure, and processing the product to be processed by the machine tool after the quick-change base plate is mounted; after the working procedure is finished, quickly separating the quick-change base plate (2) connected with the product to be processed from the base (1);
sixthly, repeating the fifth step until the working procedure needing to be processed at the upper part of the product to be processed is completed, and separating the product to be processed from the quick-change substrate (2);
and seventhly, finishing the processing procedure of the product to be processed.
4. A high-precision quick-change machining method for trapezoidal cross key groove positioning according to claim 3, wherein the base (1) and the quick-change base plate (2) are connected through a trapezoidal cross groove (11) formed in the upper surface of the base (1), a trapezoidal cross key (21) is arranged on the lower surface of the corresponding quick-change base plate (2), and rectangular grooves (12) are formed in two sides of the trapezoidal cross groove (11).
5. A high-precision quick-change machining method for trapezoidal cross-shaped key groove positioning as claimed in claim 4, characterized in that the upper surface of the base (1) is provided with a plurality of concentric annular grooves (13) or a part of the annular grooves (13) taking the center point of the cylindrical upper surface as the center.
6. The high-precision quick-change machining method for trapezoidal cross-shaped key groove positioning according to claim 5, characterized in that an inner hexagonal positioning screw (5) is arranged on the upper surface of the base (1), and an inner hexagonal positioning screw hole is arranged at a corresponding position on the lower surface of the quick-change base plate (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592701.5A CN114131398B (en) | 2021-12-23 | 2021-12-23 | High-precision quick-change machining tool and machining method for positioning trapezoid cross key groove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592701.5A CN114131398B (en) | 2021-12-23 | 2021-12-23 | High-precision quick-change machining tool and machining method for positioning trapezoid cross key groove |
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| Publication Number | Publication Date |
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| CN114131398A CN114131398A (en) | 2022-03-04 |
| CN114131398B true CN114131398B (en) | 2023-03-21 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2665113B1 (en) * | 1990-07-25 | 1995-06-02 | Peugeot | ARRANGEMENT FOR THE QUICK CHANGE OF A PRESS TOOL. |
| DE19739460C1 (en) * | 1997-09-03 | 1999-02-11 | Hohenstein Vorrichtungsbau | Rapid change mounting for machine tool components |
| JP4985549B2 (en) * | 2008-06-06 | 2012-07-25 | 日産自動車株式会社 | Work positioning device |
| CN103949918B (en) * | 2014-05-19 | 2016-04-06 | 合肥波林新材料股份有限公司 | Five processing quick change frocks of multiple part to be processed can be clamped |
| CN105081406B (en) * | 2015-09-15 | 2017-08-15 | 沈阳飞机工业（集团）有限公司 | A kind of mechanism and boring method for indexing drilling radial hole |
| JP6345375B1 (en) * | 2017-07-24 | 2018-06-20 | 株式会社北川鉄工所 | Chuck |
| CN207372737U (en) * | 2017-10-24 | 2018-05-18 | 西安斯诺机械智能科技有限公司 | The flexible fast replacing device of harmonic reducer of robot |
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2021
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