CN216151805U - Flexible centering positioning mechanism suitable for processing cylinder body and cylinder cover blank - Google Patents
Flexible centering positioning mechanism suitable for processing cylinder body and cylinder cover blank Download PDFInfo
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- CN216151805U CN216151805U CN202122239458.0U CN202122239458U CN216151805U CN 216151805 U CN216151805 U CN 216151805U CN 202122239458 U CN202122239458 U CN 202122239458U CN 216151805 U CN216151805 U CN 216151805U
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Abstract
The utility model belongs to the technical field of cylinder body and cylinder cover processing, and particularly relates to a flexible centering positioning mechanism suitable for processing a cylinder body and cylinder cover blank. The utility model comprises two sets of positioning devices and an oil supply device, wherein the oil supply device supplies oil to the two sets of positioning devices synchronously; an end cover of the positioning device props against the rear end face of the cylinder barrel, the rear end of the end cover is connected with the fixed flange through bolts, cavities are formed in the cylinder barrel, the end cover and the fixed flange, the piston rod III is connected in the cavities of the cylinder barrel, the end cover and the fixed flange in a sliding mode, and an oil inlet and an oil outlet I and an oil inlet and an oil outlet IV are formed in the cylinder barrel; sliding connection has piston rod II in piston rod III's the slip intracavity, and the end-to-end connection of piston rod II has drive arrangement, and the front end of piston rod III is articulated from top to bottom to have two to divide the piece, is equipped with trapezoidal draw-in groove on dividing the piece, and the ka tai sliding connection of the front end of piston rod II is equipped with the card in two draw-in grooves that divide the piece in the piece. The manufacturing cost is low; the positioning precision is high, and the efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of cylinder body and cylinder cover processing, and particularly relates to a flexible centering positioning mechanism suitable for processing a cylinder body and cylinder cover blank.
Background
After the blank is cast, the engine cylinder body and the cylinder cover need to be processed according to the design drawing of the product, and parts are assembled after the processing is finished so as to finish the whole engine.
The engine is a core component of the whole automobile, the cylinder body and the cylinder cover are core parts of the engine, the inner cavity has a complex structure and is provided with a water jacket, an oil duct and an air duct, the uniform wall thickness needs to be ensured after the processing, if the wall thickness is not uniform, the risk of water jacket and oil duct intercommunication exists in the inner cavity of the engine, and the whole engine is scrapped.
The wall thickness of an inner cavity of an engine is ensured to be uniform, the blank allowance is required to be uniformly removed when the cylinder cover of the engine cylinder body is processed in a first process, so that the first process needs to be very accurate in centering and positioning in the processing process, the blank is also required to be strictly positioned according to the reference of the blank, the allowance is removed after the positioning, a fine positioning reference is processed, and the size precision of the cylinder cover of the whole engine cylinder body can be ensured by using the fine positioning reference after the fine positioning is completed in the processing process.
The blank of part product benchmark is a little round hole, because the casting tolerance is 2mm, the diameter precision of this hole is unable to use traditional diamond pin to fix a position. It is desirable to use a flexible mechanism that can be used to cast datum hole tolerances for alignment.
At present, a relatively high-end solution for the blank positioning hole is to perform online measurement on a machining center, detect data by using the online measurement, automatically calculate by a system of equipment, and find the center of a blank reference hole. The solution is high in cost, a machining center needs to be configured, and an online detection system is configured on equipment; another solution is to use manual measurements and then to scribe a standard line on the workpiece and then use the equipment to align the scribe line for processing. This method is inefficient and has low machining accuracy.
Disclosure of Invention
The utility model aims to solve the problems and provides a flexible centering and positioning mechanism suitable for processing cylinder body and cylinder cover blanks.
The utility model is realized by adopting the following technical scheme: a flexible centering positioning mechanism suitable for processing cylinder body and cylinder cover blanks comprises two sets of positioning devices and an oil supply device, wherein the oil supply device supplies oil to the two sets of positioning devices synchronously;
the positioning device comprises a fixed flange, a piston rod II, a piston rod III, a middle dividing sheet, a cylinder barrel and an end cover;
the end cover is abutted against the rear end face of the cylinder barrel, the rear end of the end cover is connected with the fixing flange through a bolt, cavities are formed in the cylinder barrel, the end cover and the fixing flange, the piston rod III is connected in the cavities of the cylinder barrel, the end cover and the fixing flange in a sliding mode, the front end of the piston rod III extends out of the cylinder barrel, the rear end of the piston rod III extends out of the fixing flange, and an oil inlet and outlet I and an oil inlet and outlet IV are formed in the cylinder barrel;
be equipped with the slip chamber in the piston rod III, slip intracavity sliding connection has piston rod II, and the end-to-end connection of piston rod II has drive arrangement, and the front end of piston rod III is articulated from top to bottom to have two to divide the piece, is equipped with trapezoidal draw-in groove on dividing the piece, and the front end of piston rod II is equipped with the ka tai of cylindricality, and ka tai sliding connection is equipped with the card in the draw-in groove of piece in two minutes, divides the front end of piece to be equipped with the card.
Further, drive arrangement includes hydro-cylinder and piston rod I, and the hydro-cylinder can be dismantled with piston rod III and be connected, and the front end and the piston rod II of piston rod I are connected, are equipped with oil inlet and outlet II and oil inlet and outlet III on the hydro-cylinder.
Furthermore, the front end of the oil cylinder is detachably connected with the piston rod III through a connecting flange and a bolt.
Furthermore, a connecting plate is fixed on the cylinder barrel, and through holes are formed in four corners of the connecting plate.
Furthermore, the middle dividing plate is hinged to the piston rod III through a bolt.
Compared with the prior art, the utility model has the beneficial effects that:
1. the structure is simple, the manufacturing cost is low, and the device can be repeatedly used;
2. according to the oil supply device, oil is synchronously supplied to the two sets of positioning devices through the oil supply device, and the centering pieces of the two positioning devices are controlled to be synchronously opened or closed, so that the cylinder body blank is accurately centered and positioned, the positioning precision is high, the efficiency is high, and the labor cost is low;
3. this application adjusts the extension length of piston rod II through control oil input volume to the opening and shutting angle of piece in the control branch is applicable to different batches, and the location in the branch of the cylinder body blank of different diameter sizes realizes flexible branch in, and the range of application is extensive.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the cylinder of the present invention;
FIG. 3 is a schematic view of the split of the present invention in an open state;
FIG. 4 is a schematic view of the connection of the piston rod III to the clock piece according to the present invention;
FIG. 5 is a schematic view of the present invention entering the locating holes of the cylinder block blank for centering and locating;
FIG. 6 is a schematic view of the locating holes of the ejected cylinder blank of the present invention;
in the figure: 1-an oil inlet and outlet I, 2-a fixed flange, 3-a connecting flange, 4-an oil inlet and outlet II, 5-an oil cylinder, 6-an oil inlet and outlet III, 7-a piston rod I, 8-a piston rod II, 8.1-a clamping table, 9-a piston rod III, 10-an oil inlet and outlet IV, 11-a connecting plate, 12-a centering sheet, 12.1-a clamping groove, 12.2-a clamping sheet, 13-a cylinder barrel, 14-an end cover, 15-a sliding cavity, 16-a clamp bottom plate, 17-a cylinder body blank, 18-a bolt and 19-a bolt.
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.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The front and back refer to the moving direction of the piston rod III, the center separating sheet is arranged at the front end, and the oil cylinder is arranged at the back end.
Referring to fig. 1 to 6, the present invention provides a technical solution: a flexible centering positioning mechanism suitable for processing cylinder body and cylinder cover blanks comprises two sets of positioning devices and an oil supply device, wherein the oil supply device supplies oil to the two sets of positioning devices synchronously;
the positioning device comprises a fixed flange 2, a piston rod II 8, a piston rod III 9, a middle dividing sheet 12, a cylinder barrel 13 and an end cover 14;
the end cover 14 is abutted against the rear end face of the cylinder barrel 13, the rear end of the end cover 14 is connected with the fixed flange 2 through bolts, cavities are formed in the cylinder barrel 13, the end cover 14 and the fixed flange 2, the piston rod III 9 is connected in the cavities of the cylinder barrel 13, the end cover 14 and the fixed flange 2 in a sliding mode, the front end of the piston rod III 9 extends out of the cylinder barrel 13, the rear end of the piston rod III extends out of the fixed flange 2, and an oil inlet and outlet I1 and an oil inlet and outlet IV 10 are formed in the cylinder barrel 13;
be equipped with sliding cavity 15 in the piston rod III 9, sliding connection has piston rod II 8 in sliding cavity 15, the end-to-end connection of piston rod II 8 has drive arrangement, the front end of piston rod III 9 is articulated from top to bottom symmetrically has two to divide middle piece 12, divide middle piece 12 to be equipped with trapezoidal draw-in groove 12.1, the front end of piston rod II 8 is equipped with cylindricality ka tai 8.1, draw-in table 8.1 sliding connection is in the draw-in groove 12.1 of two branch middle pieces 12, the front end of branch middle piece 12 is equipped with card 12.2, can accomplish opening and closing of branch middle piece 12 when advancing of piston rod II 8 and retreating, accomplish the branch of cylinder body blank reference hole and fix a position.
The driving device comprises an oil cylinder 5 and a piston rod I7, the oil cylinder 5 is detachably connected with a piston rod III 9, the front end of the piston rod I7 is connected with a piston rod II 8, and an oil inlet and outlet II 4 and an oil inlet and outlet III 6 are arranged on the oil cylinder 5.
The front end of the oil cylinder 5 is detachably connected with a piston rod III 9 through a connecting flange 3 and a bolt.
The cylinder 13 is fixed with a connecting plate 11, four corners of the connecting plate 11 are provided with through holes, and the through holes are connected with a clamp bottom plate 16 of the processing table through bolts 18.
The middle dividing plate 12 is hinged on the piston rod III 9 through a bolt 19.
The engine cylinder body and cylinder cover blank belongs to a large part, the weight is heavy, and the cylinder body can be moved only by enough force in the positioning process of the positioning mechanism, so that the whole mechanism is designed by hydraulic drive.
This application is through the extension length of control piston rod II 8 to the opening and closing angle of piece 12 in the control branch is applicable to different batches, and the location is in the branch of the cylinder body blank 17 of different diameter sizes, realizes flexible branch in, and the range of application is extensive.
The mechanism has the advantages that the application range is wide, the expandability is strong, the mechanism can adapt to the processing of the cylinder body and the cylinder cover of the engine cylinder of our company, and meanwhile, the mechanism can also be suitable for the blank positioning of other various products; parts in various industries can be used for reference during processing; the design of the product is more flexible, and a product engineer can specify the hole for positioning if the blank hole needs to be positioned in order to ensure the characteristic dimension of certain key positions when designing the product.
The processing technology is optimized, if some products need to be positioned by using the blank reference hole due to use requirements, a rough reference hole can be machined firstly by using the method, and the rough reference hole is positioned by using the next procedure to machine a fine reference hole, so that the manufacturing cost is greatly reduced, and the product is positioned in the center without using a machining center to perform online measurement.
The working principle of the utility model is as follows:
positioning: when the flexible centering mechanism is ready for centering positioning, the oil supply device synchronously enters hydraulic oil into the oil inlet and outlet ports IV 10 of the two sets of positioning devices, so that the two piston rods III 9 are pushed to synchronously move forwards to enter two ends of the positioning holes of the cylinder blank 17 (at the moment, the piston rods III 9 are in place and do not move any more); then, hydraulic oil enters the oil inlet and outlet II 4 to push the piston rod I7 to move forwards, so that the center separating sheet 12 is opened, the clamping sheet 12.2 of the center separating sheet 12 is propped against the hole wall of the positioning hole of the cylinder body blank 17, and center separating positioning is achieved, as shown in fig. 3 and 5.
Disassembling: when the workpiece is machined, the oil supply device synchronously supplies hydraulic oil to the oil inlet and outlet ports III 6 of the two sets of positioning devices to push the piston rod I7 to move backwards and close the centering piece 12 (at the moment, the piston rod I7 is in place and does not move any more); then, hydraulic oil enters the oil inlet/outlet port I to push the piston rod III 9 to move backwards, and the two positioning devices synchronously withdraw from two ends of the positioning hole of the cylinder blank 17, as shown in fig. 6.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a positioning mechanism in flexible branch suitable for processing of cylinder body cylinder cap blank which characterized in that: the oil supply device supplies oil to the two positioning devices synchronously;
the positioning device comprises a fixed flange (2), a piston rod II (8), a piston rod III (9), a centering sheet (12), a cylinder barrel (13) and an end cover (14);
the end cover (14) is propped against the rear end face of the cylinder barrel (13), the rear end of the end cover (14) is connected with the fixed flange (2) through bolts, cavities are formed in the cylinder barrel (13), the end cover (14) and the fixed flange (2), the piston rod III (9) is connected in the cavities of the cylinder barrel (13), the end cover (14) and the fixed flange (2) in a sliding mode, the front end of the piston rod III (9) extends out of the cylinder barrel (13), the rear end of the piston rod III (9) extends out of the fixed flange (2), and an oil inlet and outlet I (1) and an oil inlet and outlet IV (10) are formed in the cylinder barrel (13);
be equipped with slip chamber (15) in piston rod III (9), sliding connection has piston rod II (8) in slip chamber (15), the end-to-end connection of piston rod II (8) has drive arrangement, the front end of piston rod III (9) is upper and lower the symmetry articulated have two divide middle piece (12), be equipped with trapezoidal draw-in groove (12.1) on dividing middle piece (12), the front end of piston rod II (8) is equipped with the ka tai (8.1) of cylindricality, ka tai (8.1) sliding connection is in draw-in groove (12.1) of two divide middle piece (12), the front end of dividing middle piece (12) is equipped with card (12.2).
2. The flexible centering and positioning mechanism suitable for processing cylinder body and cylinder cover blanks as claimed in claim 1, wherein: the driving device comprises an oil cylinder (5) and a piston rod I (7), the oil cylinder (5) is detachably connected with a piston rod III (9), the front end of the piston rod I (7) is connected with a piston rod II (8), and an oil inlet and outlet II (4) and an oil inlet and outlet III (6) are arranged on the oil cylinder (5).
3. The flexible centering and positioning mechanism suitable for processing cylinder body and cylinder cover blanks as claimed in claim 2, wherein: the front end of the oil cylinder (5) is detachably connected with the piston rod III (9) through a connecting flange (3) and a bolt.
4. The flexible centering and positioning mechanism suitable for machining cylinder body and cylinder cover blanks as claimed in any one of claims 1-3, wherein: the cylinder barrel (13) is fixedly provided with a connecting plate (11), and through holes are formed in four corners of the connecting plate (11).
5. The flexible centering and positioning mechanism suitable for machining cylinder body and cylinder cover blanks as claimed in claim 4, wherein: the middle dividing plate (12) is hinged to the piston rod III (9) through a bolt (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122239458.0U CN216151805U (en) | 2021-09-16 | 2021-09-16 | Flexible centering positioning mechanism suitable for processing cylinder body and cylinder cover blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122239458.0U CN216151805U (en) | 2021-09-16 | 2021-09-16 | Flexible centering positioning mechanism suitable for processing cylinder body and cylinder cover blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216151805U true CN216151805U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122239458.0U Active CN216151805U (en) | 2021-09-16 | 2021-09-16 | Flexible centering positioning mechanism suitable for processing cylinder body and cylinder cover blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216151805U (en) |
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2021
- 2021-09-16 CN CN202122239458.0U patent/CN216151805U/en active Active
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