CN113001241A - Product positioning and conveying device for automatic production of green blank processing - Google Patents
Product positioning and conveying device for automatic production of green blank processing Download PDFInfo
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- CN113001241A CN113001241A CN201911307105.0A CN201911307105A CN113001241A CN 113001241 A CN113001241 A CN 113001241A CN 201911307105 A CN201911307105 A CN 201911307105A CN 113001241 A CN113001241 A CN 113001241A
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- 238000012545 processing Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000005286 illumination Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
- B23Q7/043—Construction of the grippers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a product positioning and conveying device for automatic production of green blank processing, which comprises a top frame, a conveying table and a feeding table arranged on the right side of the conveying table, wherein the top frame is arranged above the conveying table and the feeding table, a CCD (charge coupled device) camera is arranged at the right end of the top frame, an X-axis guide rod and a Y-axis guide rod which are perpendicular to each other are arranged below the top frame, the lower surface of an upper walking seat is connected with a Z-axis cylinder, the Z-axis guide rod of the Z-axis cylinder is connected with a rotating disc, and the lower end of the rotating disc is connected with a high-precision clamp; the transportation platform on be equipped with transportation guide rail and a plurality of location walking unit, location walking unit including with transportation guide rail sliding connection's lower seat of walking, lower seat of walking on be equipped with high accuracy location platform. According to the invention, pre-positioning and accurately clamping the green blank to be processed are realized through machine vision, and the green blank is further positioned and transported with high precision through the high-precision positioning table, so that the green blank is prevented from being damaged in clamping and transporting.
Description
Technical Field
The invention particularly relates to a product positioning and conveying device for automatic production of green blank processing.
Background
A variable valve timing system (VVT) is a system which adjusts the phase of an engine cam through an equipped control and execution system, so that the opening and closing time of a valve is changed along with the change of the rotating speed of an engine, thereby improving the charging efficiency and increasing the power of the engine. The core components in the actuator-phaser of the VVT system, such as the sprocket, stator, rotor and end caps, are mostly produced by powder metallurgy. In the phase shifter, the most core part is a rotor, and a plurality of holes, grooves and other geometric elements are designed on the rotor, wherein the axial holes and the end surface grooves can be pressed by a die, but the radial oil passages and the grooves cannot be pressed and can be realized only by secondary processing. The conventional machining process is to perform hard machining on the radial grooves and the oil passage holes by using a high-speed machining center after sintering (and quenching is needed in some cases). However, the processing method has the disadvantages of short service life of the cutter, high cost of the cutter, difficult processing of burrs, oxidation and rust of workpieces, long beat length and the like. Through research and experiments, the company carries out the current production mode that after a product is formed, a green body is directly subjected to machining, drilling and then sintering (heat treatment). The beat is improved by soft processing the green body, the service life of the cutter is prolonged, and the production cost is reduced, so that the real green processing of the VVT rotor in large batch and low cost can be realized. However, the green compact is processed, so that a plurality of problems exist, such as fragility, slag falling, deburring and the like, products with the problems can only be scrapped, a large amount of loss is caused, the transportation of the products in the automation process and the positioning and transportation of the products account for a large proportion of the problems, the products are very easy to damage in the clamping and placing process in the transportation of the green compact, the traditional numerical control coordinate positioning has large errors, and the positioning and transportation requirements of the products are difficult to meet.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a product positioning and conveying device for the automatic production of green body processing, which comprises a top frame, a conveying table and a feeding table arranged on the right side of the conveying table, wherein the top frame is arranged above the conveying table and the feeding table, a CCD camera is arranged at the right end of the top frame, an X-axis guide rod and a Y-axis guide rod which are vertical to each other are arranged below the top frame, the X-axis guide rod and the Y-axis guide rod both penetrate through an upper walking seat arranged below the top frame, the lower surface of the upper walking seat is connected with a Z-axis cylinder, a Z-axis guide rod of the Z-axis cylinder is connected with a rotating disc, and the lower end of the rotating disc is connected with a high-precision; the transportation platform on be equipped with transportation guide rail and a plurality of location walking unit, location walking unit including with transportation guide rail sliding connection's lower seat of walking, lower seat of walking on be equipped with high accuracy location platform.
In order to better realize the pre-positioning and clamping of the green body, preferably, the high-precision clamp comprises an outer shell, a coaxial inner clamp moving rod is arranged in the outer shell, and the upper end of the inner clamp moving rod is connected with the top wall of the outer shell through an inner telescopic push rod; the lower extreme of shell body is equipped with outer anchor clamps and interior anchor clamps. The high-precision clamp can apply pressure through the inner ring and the outer ring of the green body at the same time, and the structural damage caused by cracks generated on the inner ring of the green body due to stress concentration caused by single-side stress of the outer ring is avoided.
Preferably, outer anchor clamps include and encircle in a plurality of outer clamping unit of shell body, outer clamping unit include outer fixing base and the outer arm that presss from both sides that is L shape, outer fixing base seted up horizontal outer arm spacing groove that presss from both sides, outer arm spacing inslot card establish outer arm lock, outer arm that presss from both sides be connected with the lateral wall of shell body through outer reset spring, the upper end of outer fixing base is equipped with outer arm step motor that presss from both sides, outer arm step motor that presss from both sides be connected with the ball of locating outer arm upper end through the lead screw.
Preferably, the interior anchor clamps including running through and surrounding in a plurality of interior clamping unit of shell body, interior clamping unit include the butt in interior inclined supporting plate on interior anchor clamps motion pole surface and be the interior double-layered arm of T font, the interior connecting rod of interior arm lock passes the lateral wall of shell body and is connected with interior inclined supporting plate, interior connecting rod on the cover be equipped with interior reset spring, interior reset spring one end butt in the surface of interior anchor clamps motion pole, the other end butt in the internal surface of shell body.
In order to better realize the high-precision positioning of the green body and prevent the green body from being placed to cause collision damage, the high-precision positioning table is preferably characterized by comprising a base, a rotary positioning disc arranged on the base and used for supporting a rotor, a central positioning rod inserted and positioned at the center of the base and the rotary positioning disc, a side hole positioning rod arranged on the rotary positioning disc and with the end part extending out of the rotary positioning disc, and a thrust bearing positioned between the base and the rotary positioning disc, wherein a spring movable groove internally provided with a compression spring is arranged in the base, a limit positioning pin is arranged in the rotary positioning disc, one side of the limit positioning pin compresses the compression spring, a rotary limiting hole which is used for accommodating the limit positioning pin in a rotary motion way and is communicated with the spring movable groove is arranged on the base, at least three spring plungers are embedded in the rotary positioning disc. The green body can be positioned by the high-precision positioning table to obtain further high-precision positioning, and the green body is buffered by the compression spring when being positioned to avoid the generation of cracks due to collision to cause structural damage.
Preferably, a clamping groove is further formed in the central positioning rod, and a friction gasket abutted against the rotary positioning disc is sleeved outside the clamping groove.
Preferably, the number of the spring plungers is three, the spring plungers are distributed in a triangular mode, and movable heads of the spring plungers extend out of the top of the rotary positioning disc.
Preferably, the center positioning rod and the side hole positioning rod are positioning pins.
Preferably, the center positioning rod is a center positioning screw rod, and the side hole positioning rod is a side hole positioning PIN.
Preferably, the top frame is provided with an illuminating light source surrounding the CCD camera.
Has the advantages that: according to the invention, the grabbing precision of the clamp is improved through machine vision pre-positioning, so that the high-precision clamping of the green blank is realized, the damage to the green blank caused by inaccurate clamping is avoided, the angle pose of the green blank is adjusted through the rotating disk by the high-precision clamping after clamping, the green blank is further positioned at high precision through the high-precision positioning table, and the damage to a product caused by the processing error due to inaccurate placement of the green blank is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a product positioning and conveying device for automatic production of green blank processing;
FIG. 2 is a schematic structural view of a high-precision jig;
FIG. 3 is an enlarged view of a portion of the high precision clamp;
FIG. 4 is a front view of the high precision positioning stage;
FIG. 5 is a sectional view in the direction A-A in FIG. 4;
FIG. 6 is a cross-sectional view taken in the direction B-B of FIG. 4;
FIG. 7 is a cross-sectional view taken in the direction of C-C in FIG. 4;
FIG. 8 is a schematic view of a center positioning screw;
FIG. 9 is a schematic structural diagram of a side hole location PIN;
FIG. 10 is a schematic view of the structure of the base;
FIG. 11 is a front view of FIG. 10;
FIG. 12 is a cross-sectional view taken in the direction D-D of FIG. 11;
FIG. 13 is a cross-sectional view taken in the direction E-E of FIG. 11;
in the figure: 1. a top frame, 2, a transportation table, 3, a feeding table, 101, a CCD camera, 102, an X-axis guide rod, 103, an upper walking seat, 104, a Z-axis cylinder, 105, a Z-axis guide rod, 106, a rotating disc, 107, a high-precision clamp, 108, an outer shell, 109, an inner clamp moving rod, 110, an inner telescopic push rod, 111, an outer fixing seat, 112, an outer clamping arm, 113, an outer clamping arm limit groove, 114, an outer reset spring, 115, an outer clamping arm stepping motor, 116, a lead screw, 117, a ball, 118, an inner inclined supporting plate, 119, an inner clamping arm, 120, an inner connecting rod, 121, an inner reset spring, 201, a transportation guide rail, 202, a lower walking seat, 203, a high-precision positioning table, 401, a base, 402, a rotary positioning disc, 403, a central positioning screw, 404, a side hole positioning PIN, 405, a thrust bearing, 406, a compression spring, 407, a spring movable groove, 408, a limit positioning PIN, 409, a rotary limiting hole, 410, Spring plunger, 411, friction washer.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1-13, a product positioning and conveying device for automatic production of green blank processing comprises a top frame 1, a conveying table 2 and a feeding table 3 arranged on the right side of the conveying table 2, wherein the top frame 1 is arranged above the conveying table 2 and the feeding table 3, a CCD camera 101 is arranged at the right end of the top frame 1, and an illumination light source (not shown in the figure) surrounding the CCD camera 101 is arranged on the top frame; an X-axis guide rod 102 and a Y-axis guide rod which are perpendicular to each other are arranged below the top frame 1, the X-axis guide rod 102 and the Y-axis guide rod both penetrate through an upper walking seat 103 arranged below the top frame, the lower surface of the upper walking seat 103 is connected with a Z-axis cylinder 104, a Z-axis guide rod 105 of the Z-axis cylinder 104 is connected with a rotating disc 106, and the lower end of the rotating disc 106 is connected with a high-precision clamp 107; the transportation platform 2 is provided with a transportation guide rail 201 and a plurality of positioning walking units, each positioning walking unit comprises a lower walking seat 202 connected with the transportation guide rail 201 in a sliding mode, and the lower walking seat 202 is provided with a high-precision positioning platform 203.
The high-precision clamp 107 comprises an outer shell 108, a coaxial inner clamp moving rod 109 is arranged in the outer shell 108, and the upper end of the inner clamp moving rod is connected with the top wall of the outer shell 108 through an inner telescopic push rod 110; an outer clamp and an inner clamp are arranged at the lower end of the outer shell 108; the outer clamp comprises a plurality of outer clamping units surrounding the outer shell, each outer clamping unit comprises an outer fixing seat 111 and an L-shaped outer clamping arm 112, the outer fixing seat is provided with a transverse outer clamping arm limiting groove 113, the outer clamping arm 112 is clamped in the outer clamping arm limiting groove 113, the outer clamping arm 112 is connected with the side wall of the outer shell through an outer reset spring 114, the upper end of the outer fixing seat 111 is provided with an outer clamping arm stepping motor 115, and the outer clamping arm stepping motor 115 is connected with a ball 117 arranged at the upper end of the outer clamping arm through a lead screw 116; interior anchor clamps including running through and encircle in a plurality of interior clamping unit of shell body, interior clamping unit include butt in interior inclined strut board 118 on interior anchor clamps motion pole surface and the interior press from both sides arm 119 that is the T font, interior connecting rod 120 of interior clamp arm 119 passes the lateral wall of shell body and is connected with interior inclined strut board 118, interior connecting rod 120 on the cover be equipped with interior reset spring 121, interior reset spring 121 one end butt in the surface of interior anchor clamps motion pole 109, the other end butt in the internal surface of shell body 108.
The high-precision positioning table comprises a base 401, a rotary positioning disc 402 arranged on the base 401 and used for supporting a rotor, a central positioning screw 403 inserted and positioned at the centers of the base 401 and the rotary positioning disc 402, a side hole positioning PIN404 arranged on the rotary positioning disc 402 and with the end part extending out of the rotary positioning disc 402, and a thrust bearing 405 positioned between the base 401 and the rotary positioning disc 402, wherein a spring movable groove 407 internally provided with a compression spring 406 is arranged in the base 401, a limiting positioning pin 408 is arranged in the rotary positioning disc 402, one side of the limiting positioning pin 408 compresses a compression spring 406, a rotary limiting hole 409 which is used for accommodating the limiting positioning pin 408 to rotate and is communicated with a spring movable groove 407 is arranged on the base 401, three spring plungers 410 are embedded in the rotary positioning disc 20, a clamping groove is further arranged on the central positioning screw 403, and a friction gasket 411 which is abutted against the rotary positioning disc 402 is sleeved outside the clamping groove.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A product positioning and conveying device for automatic production of green blank processing is characterized by comprising an upper frame, a conveying table and a feeding table arranged on the right side of the conveying table, wherein the upper frame is arranged above the conveying table and the feeding table, a CCD camera is arranged at the right end of the upper frame, an X-axis guide rod and a Y-axis guide rod which are perpendicular to each other are arranged below the upper frame, the X-axis guide rod and the Y-axis guide rod both penetrate through an upper walking seat arranged below the upper frame, the lower surface of the upper walking seat is connected with a Z-axis cylinder, the Z-axis guide rod of the Z-axis cylinder is connected with a rotating disc, and the lower end of the rotating disc is connected with a high-precision clamp; the transportation platform on be equipped with transportation guide rail and a plurality of location walking unit, location walking unit including with transportation guide rail sliding connection's lower seat of walking, lower seat of walking on be equipped with high accuracy location platform.
2. The product positioning and conveying device for the automatic production of green blank processing as claimed in claim 1, wherein the high-precision clamp comprises an outer shell, a coaxial inner clamp moving rod is arranged in the outer shell, and the upper end of the inner clamp moving rod is connected with the top wall of the outer shell through an inner telescopic push rod; the lower extreme of shell body is equipped with outer anchor clamps and interior anchor clamps.
3. The product positioning and conveying device for the automatic production of green blank processing as claimed in claim 2, wherein the outer clamp comprises a plurality of outer clamping units surrounding the outer shell, each outer clamping unit comprises an outer fixing base and an L-shaped outer clamping arm, the outer fixing base is provided with a transverse outer clamping arm limiting groove, an outer clamping arm is clamped in the outer clamping arm limiting groove, the outer clamping arm is connected with the side wall of the outer shell through an outer reset spring, an outer clamping arm stepping motor is arranged at the upper end of the outer fixing base, and the outer clamping arm stepping motor is connected with a ball arranged at the upper end of the outer clamping arm through a lead screw.
4. The product positioning and conveying device for the automatic production of green blank processing as claimed in claim 2, wherein the inner clamp comprises a plurality of inner clamping units penetrating through and surrounding the outer shell, the inner clamping units comprise inner inclined supporting plates abutting against the surface of the moving rod of the inner clamp and inner clamping arms in a T shape, inner connecting rods of the inner clamping arms penetrate through the side walls of the outer shell to be connected with the inner inclined supporting plates, inner reset springs are sleeved on the inner connecting rods, one ends of the inner reset springs abut against the outer surface of the moving rod of the inner clamp, and the other ends of the inner reset springs abut against the inner surface of the outer shell.
5. The device for positioning and transporting products for use in automatic production of green body processing according to claim 1, wherein the high-precision positioning table comprises a base, a rotary positioning plate disposed on the base for supporting a rotor, a center positioning rod inserted and positioned at the center of the base and the rotary positioning plate, a side hole positioning rod disposed on the rotary positioning plate and having an end portion extending out of the rotary positioning plate, and a thrust bearing disposed between the base and the rotary positioning plate, wherein a spring moving groove having a compression spring is disposed in the base, a position-limiting positioning pin is disposed in the rotary positioning plate, one side of the position-limiting positioning pin compresses the compression spring, a rotation-limiting hole for accommodating rotational movement of the position-limiting positioning pin and communicating with the spring moving groove is disposed in the base, at least three spring plungers are embedded in the rotary positioning disc.
6. The device for positioning and transporting the product for use in the automated green body processing production according to claim 5, wherein a locking groove is further formed in the center positioning rod, and a friction pad abutting against the rotary positioning plate is sleeved outside the locking groove.
7. The device of claim 5, wherein the number of the spring plungers is three, and the spring plungers are distributed in a triangular manner, and the movable heads of the spring plungers extend out of the top of the rotary positioning plate.
8. The device of claim 5, wherein the center positioning rod and the side hole positioning rod are positioning pins.
9. The device of claim 5, wherein the central positioning rod is a central positioning screw and the side hole positioning rod is a side hole positioning PIN.
10. The device of claim 1, wherein the top frame is provided with an illumination source surrounding the CCD camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307105.0A CN113001241A (en) | 2019-12-18 | 2019-12-18 | Product positioning and conveying device for automatic production of green blank processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307105.0A CN113001241A (en) | 2019-12-18 | 2019-12-18 | Product positioning and conveying device for automatic production of green blank processing |
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| CN113001241A true CN113001241A (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911307105.0A Pending CN113001241A (en) | 2019-12-18 | 2019-12-18 | Product positioning and conveying device for automatic production of green blank processing |
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