CN113084556A - Oil cylinder head milling tool and clamping method - Google Patents
Oil cylinder head milling tool and clamping method Download PDFInfo
- Publication number
- CN113084556A CN113084556A CN202110483771.0A CN202110483771A CN113084556A CN 113084556 A CN113084556 A CN 113084556A CN 202110483771 A CN202110483771 A CN 202110483771A CN 113084556 A CN113084556 A CN 113084556A
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- locking
- positioning
- cylinder head
- finished product
- pressing plate
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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
Abstract
The invention relates to a milling tool and a clamping method for a cylinder head of an oil cylinder, which comprise the following steps: the main positioning mechanism comprises a positioning substrate, and a positioning mandrel is arranged in the middle of the positioning substrate; the auxiliary positioning mechanism comprises a supporting plate, the supporting plate is arranged on the side wall of the front end of the positioning base plate, two auxiliary positioning rods are arranged on the supporting plate at intervals, the auxiliary positioning rods act on the side surface of the cylinder head semi-finished product, a table surface A is arranged on one side of the cylinder head semi-finished product, and a table surface B is arranged on the other side of the cylinder head semi-finished product; the locking mechanism A comprises a guide post A and a locking screw A which are arranged on the positioning substrate, a locking pressing plate A is arranged on the guide post A, a locking nut A is arranged on the locking screw A, and the locking pressing plate A acts on the table board A; the locking mechanism B comprises a guide post B and a locking screw B which are arranged on the positioning substrate, a locking pressing plate B is arranged on the guide post B, a locking nut B is arranged on the locking screw B, and the locking pressing plate B acts on the table board B. Has the advantages of reasonable structural design, high positioning precision, stable and reliable clamping, simple and convenient operation and the like.
Description
The technical field is as follows:
the invention relates to the technical field of oil cylinder head machining, in particular to an oil cylinder head milling tool and a clamping method.
Background art:
the oil cylinder has wide application in engineering machinery. As shown in fig. 8, the blank of the cylinder head is provided, and the positions to be processed include the front end, both side ends and upper and lower ends of the blank, and although the structure of the cylinder head itself is not complicated, there are many surfaces and holes to be processed, and these surfaces and holes are not only distributed at different positions, but also have different requirements on processing precision, which brings difficulty to processing.
The existing cylinder head processing method generally comprises the steps of firstly processing the front end of a cylinder head by using a lathe, generally processing a positioning datum (for example, processing a positioning datum plane and/or a positioning datum hole) required by a subsequent process while processing the front end, and designing a corresponding clamping tool (clamp) according to the positioning datum in the subsequent processing. Aiming at the structural characteristics of the cylinder head of the oil cylinder, the machining process roughly comprises three steps, wherein the first step is to machine the front end by using a lathe and simultaneously machine a positioning reference, the second step is to design a tool according to the positioning reference, and then to machine two sides of the cylinder head by using a peripheral machining center, wherein the machining mainly comprises milling; and finally, processing the upper end and the lower end of the cylinder head of the oil cylinder, the peripheral unthreaded holes and the threaded holes by using a peripheral processing center. The processing of second step plays the effect of taking over from top to bottom, and is especially important to follow-up processing, and need improve the machining precision and design the milling frock that the location is accurate, the clamping is reliable, and current milling frock mostly can't realize high accurate location, and the clamping reliability is not good, and the work piece is very easy because of receiving external force or cutter processing effort and the position changes, this influences the machining precision seriously. Therefore, a milling tool suitable for structural characteristics of the cylinder head of the oil cylinder is needed to be designed, and positioning accuracy and clamping reliability are improved.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
The invention content is as follows:
the invention aims to solve the problems in the prior art, and provides a milling tool and a clamping method for a cylinder head of an oil cylinder, which have the advantages of reasonable structural design, high positioning accuracy, stable and reliable clamping, simplicity and convenience in operation and the like.
The invention adopts the following technical scheme to realize the purpose:
the utility model provides an hydro-cylinder head mills frock, includes:
the main positioning mechanism comprises a positioning base plate, the positioning base plate is matched and positioned with a positioning reference surface on the cylinder head semi-finished product, and a positioning mandrel matched and positioned with a positioning reference hole on the cylinder head semi-finished product is arranged in the middle of the positioning base plate;
the auxiliary positioning mechanism comprises a supporting plate, the supporting plate is arranged on the side wall of the front end of the positioning base plate, two auxiliary positioning rods are arranged on the supporting plate at intervals, the auxiliary positioning rods act on the side surface of the cylinder head semi-finished product, a table surface A is arranged on one side of the cylinder head semi-finished product, and a table surface B is arranged on the other side of the cylinder head semi-finished product;
the locking mechanism A comprises a guide post A and a locking screw A which are arranged on the positioning substrate, wherein a locking pressing plate A is arranged on the guide post A, a locking nut A is arranged on the locking screw A, and the locking pressing plate A acts on the table board A;
and the locking mechanism B comprises a guide post B and a locking screw B which are arranged on the positioning substrate, wherein a locking pressing plate B is arranged on the guide post B, a locking nut B is arranged on the locking screw B, and the locking pressing plate B acts on the table board B.
The positioning substrate is designed to be of a rectangular structure.
The lower end of the supporting plate is provided with an auxiliary guide rod, and the front end of the corresponding positioning substrate is provided with an auxiliary guide hole.
And a fastening screw rod is arranged in the middle of the lower end of the supporting plate, and a fastening threaded hole is formed in the front end of the corresponding positioning substrate.
An opening pressing plate is arranged between the fastening screw and the supporting plate.
The front end of the locking pressing plate A is provided with a pressing block A acting on the table board A, and the front end of the locking pressing plate B is provided with a pressing block B acting on the table board B.
The locking device is characterized in that a waist-shaped hole A which is convenient for a locking screw A to pass through is formed in the locking pressing plate A, a washer A and a locking nut A which are used for locking are arranged on the locking screw A, a waist-shaped hole B which is convenient for a locking screw B to pass through is formed in the locking pressing plate B, and a washer B and a locking nut B which are used for locking are arranged on the locking screw B.
A milling tool clamping method comprises the following steps: sleeving a positioning reference hole on a cylinder head semi-finished product on a positioning mandrel, attaching and positioning a positioning reference surface and a positioning base plate, then pushing a support plate to move towards a cylinder head blank, guiding the movement through an auxiliary guide rod and an auxiliary guide hole, finally fastening the support plate at the front end of the positioning base plate by using a fastening screw, simultaneously positioning two auxiliary positioning rods on the support plate acting on the side surface of the cylinder head semi-finished product, and finally locking the cylinder head semi-finished product on the positioning base plate through a locking pressing plate A and a locking pressing plate B.
By adopting the technical scheme, the invention can bring the following beneficial effects:
the cylinder head semi-finished product locking device has the advantages that the positioning reference surface and the positioning reference hole are machined while a lathe is used for machining, then main positioning is conducted by taking the positioning reference surface and the positioning reference hole as references, then auxiliary positioning is conducted by utilizing a side structure of a cylinder head semi-finished product, positioning accuracy is improved, finally locking is conducted by utilizing a table board A and a table board B which are arranged on two sides of the cylinder head semi-finished product and serve as stress locking surfaces, the technical effects that locking stress is symmetrical and uniform and locking effect is good are achieved, the technical effects that clamping accuracy is high and clamping is stable and reliable are achieved through the matching of the whole structure, machining accuracy of two annular side faces and side holes of the cylinder head semi-finished product is guaranteed.
Description of the drawings:
FIG. 1 is a schematic structural view of a milling tool according to the present invention;
FIG. 2 is a schematic view of another perspective structure of the milling fixture of the present invention;
FIG. 3 is an exploded view of the auxiliary positioning mechanism of the present invention;
FIG. 4 is a schematic structural view of a semi-finished product of a milling tool for mounting a cylinder head according to the present invention;
FIG. 5 is a schematic structural view of the milling fixture of the present invention mounted on a fourth axis rotary table;
FIG. 6 is a schematic structural view of a cylinder head semi-finished product according to the present invention;
FIG. 7 is a schematic view of another perspective structure of the cylinder head semi-finished product according to the present invention;
FIG. 8 is a schematic view of the construction of the cylinder head blank of the present invention;
in the figure, 1, a positioning base plate, 2, a positioning mandrel, 3, a support plate, 4, an auxiliary positioning rod, 5, guide posts A, 6, locking screws A, 7, locking press plates A, 8, locking nuts A, 9, guide posts B, 10, locking screws B, 11, locking press plates B, 12, locking nuts B, 13, auxiliary guide rods, 14, auxiliary guide holes, 15, fastening screws, 16, fastening threaded holes, 17, opening press plates, 18, press blocks A, 19, press blocks B, 20, waist-shaped holes A, 21, waist-shaped holes B, 22, washers A, 23, washers B, 24, cylinder head semi-finished products, 25, positioning reference surfaces, 26, positioning reference holes, 27, side surfaces, 28, annular side surfaces, 29, side holes, 30, table surfaces A, 31, table surfaces B, 32, cylinder head blank pieces, 33 and a fourth axis rotary table.
The specific implementation mode is as follows:
in order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
In the present invention, the terms "upper", "lower", "axial", "upper", "lower", "rear", "a", "B", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the location of the indicated technical feature.
In the present invention, unless otherwise expressly stated or limited, the terms "provided", "disposed", "connected", "communicating", and the like are to be construed broadly, e.g., "provided" and "disposed" may be fixedly attached, detachably attached, or integrally attached; "connected" may be directly connected or may be connected through an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-5, an oil cylinder head milling tool comprises:
the main positioning mechanism comprises a positioning base plate 1, the positioning base plate 1 is matched and positioned with a positioning reference surface 25 on the cylinder head semi-finished product, and a positioning mandrel 2 matched and positioned with a positioning reference hole 26 on a cylinder head semi-finished product 24 is arranged in the middle of the positioning base plate 1; the cylinder head semi-finished product 24 is a semi-finished product obtained by turning the front end of the cylinder head blank 32 by a lathe, as shown in fig. 6 and 7, the turning belongs to the prior art, and a positioning reference surface 25 and a positioning reference hole 26 are simultaneously machined in the turning process;
the auxiliary positioning mechanism comprises a supporting plate 3, the supporting plate 3 is arranged on the side wall of the front end of the positioning base plate 1, two auxiliary positioning rods 4 are arranged on the supporting plate 3 at intervals, the auxiliary positioning rods 4 act on the side face 27 of the cylinder head semi-finished product 24, a table face A30 is arranged on one side of the cylinder head semi-finished product 24, and a table face B31 is arranged on the other side of the cylinder head semi-finished product;
the locking mechanism A comprises a guide post A5 and a locking screw A6 which are arranged on the positioning substrate 1, wherein a locking pressing plate A7 is arranged on the guide post A5, a locking nut A8 is arranged on the locking screw A6, and the locking pressing plate A7 acts on a table surface A30;
and the locking mechanism B comprises a guide column B9 and a locking screw B10 which are arranged on the positioning substrate 1, wherein a locking pressing plate B11 is arranged on the guide column B9, a locking nut B12 is arranged on the locking screw B10, and the locking pressing plate B11 acts on the table-board B31. The method comprises the steps of processing a positioning reference surface 25 and a positioning reference hole 26 by utilizing a lathe, performing main positioning by taking the positioning reference surface 25 and the positioning reference hole 26 as references, performing auxiliary positioning by utilizing a side surface 27 structure of a cylinder head semi-finished product 24, further improving positioning accuracy, and finally locking by utilizing a table surface A30 and a table surface B31 of the cylinder head semi-finished product 24 as stress locking surfaces, so that the technical effects of symmetrical and uniform locking stress and good locking effect are achieved, the technical effects of high clamping accuracy and stable and reliable clamping are realized by the integral structure, the processing accuracy of two annular side surfaces 28 and side holes 29 of the cylinder head semi-finished product 24 is ensured, and the positioning reference is provided for subsequent processing.
The positioning substrate 1 is designed to have a rectangular structure. The rectangular structure is convenient to process, and the surface machining precision is high, so that the tool is very suitable for the tool.
The lower end of the supporting plate 3 is provided with an auxiliary guide rod 13, and the front end of the corresponding positioning substrate 1 is provided with an auxiliary guide hole 14. The guiding precision of auxiliary positioning is improved.
And a fastening screw 15 is arranged in the middle of the lower end of the supporting plate 3, and a fastening threaded hole 16 is correspondingly arranged at the front end of the positioning base plate 1. The auxiliary positioning is fastened.
An opening pressing plate 17 is arranged between the fastening screw 15 and the supporting plate 3. The stress area is increased, and the fastening effect is good.
The front end of the locking pressing plate A7 is provided with a pressing block A18 acting on the table surface A30, and the front end of the locking pressing plate B11 is provided with a pressing block B19 acting on the table surface B31. The pressing effect is better through the pressing block.
Be equipped with the kidney-shaped hole A20 that the locking screw A6 of being convenient for passed on the locking clamp plate A7, be equipped with the packing ring A22 and the lock nut A8 of locking on the locking screw A6, be equipped with the kidney-shaped hole B21 that the locking screw B10 of being convenient for passed on the locking clamp plate B11, be equipped with the packing ring B23 and the lock nut B12 of locking on the locking screw B10. The semi-finished cylinder head is locked by adopting a thread locking mode, and the cylinder head locking device has the advantages of convenience in disassembly, firmness and reliability in locking, good repeated use effect and the like.
A milling tool clamping method comprises the following steps: sleeving a positioning reference hole 26 on the cylinder head semi-finished product on a positioning mandrel 2, attaching a positioning reference surface 25 to a positioning substrate 1 for positioning, then pushing a support plate 3 to move towards the direction of the cylinder head semi-finished product 24, guiding the movement through an auxiliary guide rod 13 and an auxiliary guide hole 14, finally fastening the support plate 3 at the front end of the positioning substrate 1 by using a fastening screw 15, simultaneously positioning two auxiliary positioning rods 4 on the support plate 3 acting on the side surface 27 of the cylinder head semi-finished product 24, and finally locking the cylinder head semi-finished product 24 on the positioning substrate 1 by using a locking pressing plate A7 and a locking pressing plate B11. During the in-service use, can be with the milling frock direct mount of this application on four-axis machining center's fourth axis revolving stage 33.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. The utility model provides an hydro-cylinder head mills frock which characterized in that includes:
the main positioning mechanism comprises a positioning base plate, the positioning base plate is matched and positioned with a positioning reference surface on the cylinder head semi-finished product, and a positioning mandrel matched and positioned with a positioning reference hole on the cylinder head semi-finished product is arranged in the middle of the positioning base plate;
the auxiliary positioning mechanism comprises a supporting plate, the supporting plate is arranged on the side wall of the front end of the positioning base plate, two auxiliary positioning rods are arranged on the supporting plate at intervals, the auxiliary positioning rods act on the side surface of the cylinder head semi-finished product, a table surface A is arranged on one side of the cylinder head semi-finished product, and a table surface B is arranged on the other side of the cylinder head semi-finished product;
the locking mechanism A comprises a guide post A and a locking screw A which are arranged on the positioning substrate, wherein a locking pressing plate A is arranged on the guide post A, a locking nut A is arranged on the locking screw A, and the locking pressing plate A acts on the table board A;
and the locking mechanism B comprises a guide post B and a locking screw B which are arranged on the positioning substrate, wherein a locking pressing plate B is arranged on the guide post B, a locking nut B is arranged on the locking screw B, and the locking pressing plate B acts on the table board B.
2. The milling tool for the cylinder head of the oil cylinder according to claim 1, wherein the positioning substrate is designed to be of a rectangular structure.
3. The milling tool for the cylinder head of the oil cylinder according to claim 1 or 2, wherein an auxiliary guide rod is arranged at the lower end of the support plate, and an auxiliary guide hole is formed in the front end of the corresponding positioning substrate.
4. The milling tool for the cylinder head of the oil cylinder according to claim 3, wherein a fastening screw is arranged in the middle of the lower end of the support plate, and a fastening threaded hole is formed in the front end of the corresponding positioning substrate.
5. The milling tool for the cylinder head of the oil cylinder according to claim 4, wherein an opening pressing plate is arranged between the fastening screw and the supporting plate.
6. The oil cylinder head milling tool according to claim 1 or 5, wherein a pressing block A acting on the table board A is arranged at the front end of the locking pressing plate A, and a pressing block B acting on the table board B is arranged at the front end of the locking pressing plate B.
7. The milling tool for the cylinder head of the oil cylinder according to claim 6, wherein a waist-shaped hole A for allowing a locking screw A to pass through is formed in the locking pressing plate A, a gasket A and a locking nut A for locking are arranged on the locking screw A, a waist-shaped hole B for allowing a locking screw B to pass through is formed in the locking pressing plate B, and a gasket B and a locking nut B for locking are arranged on the locking screw B.
8. A milling tool clamping method is characterized by comprising the following steps: sleeving a positioning reference hole on a cylinder head semi-finished product on a positioning mandrel, attaching and positioning a positioning reference surface and a positioning base plate, then pushing a support plate to move towards a cylinder head blank, guiding the movement through an auxiliary guide rod and an auxiliary guide hole, finally fastening the support plate at the front end of the positioning base plate by using a fastening screw, simultaneously positioning two auxiliary positioning rods on the support plate acting on the side surface of the cylinder head semi-finished product, and finally locking the cylinder head semi-finished product on the positioning base plate through a locking pressing plate A and a locking pressing plate B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483771.0A CN113084556A (en) | 2021-04-30 | 2021-04-30 | Oil cylinder head milling tool and clamping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483771.0A CN113084556A (en) | 2021-04-30 | 2021-04-30 | Oil cylinder head milling tool and clamping method |
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| Publication Number | Publication Date |
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| CN113084556A true CN113084556A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110483771.0A Pending CN113084556A (en) | 2021-04-30 | 2021-04-30 | Oil cylinder head milling tool and clamping method |
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