CN214920509U - Inner and outer cylinder structure of laser powder melting forming technology - Google Patents
Inner and outer cylinder structure of laser powder melting forming technology Download PDFInfo
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- CN214920509U CN214920509U CN202120532395.5U CN202120532395U CN214920509U CN 214920509 U CN214920509 U CN 214920509U CN 202120532395 U CN202120532395 U CN 202120532395U CN 214920509 U CN214920509 U CN 214920509U
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Abstract
The utility model discloses an inner and outer cylinder structure of laser powder melting forming technology, which comprises an outer cylinder body, an inner cylinder body, a piston lifting driving device and an inner cylinder body lifting driving device, wherein the upper ends of the outer cylinder body and the inner cylinder body are both provided with an opening structure, the inner cylinder body can be inserted into the outer cylinder body in a circumferential direction stopping and axial sliding way, the inner cylinder body can extend out of the outer cylinder body for setting length through the opening structure at the upper end of the outer cylinder body, the sealing of the piston in the circumferential direction stopping and axial sliding way is inserted into the inner cylinder body, the upper end surface of the piston forms a forming surface, the piston lifting driving device drives the piston to move up and down in the inner cylinder body, the inner cylinder body lifting driving device drives the inner cylinder body to move up and down in the outer cylinder body, the precision of the utility model is easy to control, the test can be carried out off line, the piece taking is convenient, good conditions are created for the structural arrangement of the forming chamber, and the overall height is low.
Description
Technical Field
The utility model relates to a take shape and equip for SLM processing, in particular to laser powder melts interior outer cylinder structure of forming technique.
Background
The SLM technique overcomes the difficulties associated with the conventional techniques for manufacturing metal parts having complex shapes. It can directly form metal parts with almost full compactness and good mechanical properties. Therefore, the processing and forming of adopting the SLM technique to carry out the product is widespread, SLM equipment all adopts the shaping jar and spreads the support that powder and product were realized to the cooperation of powder device, present shaping jar all has a cylinder body of fixing in the frame and is located the piston component in the cylinder body, the shaping jar all is fixed mounting on SLM equipment, it can't separate with the frame, be unfavorable for carrying out various tests to the cylinder body, and work piece processing accomplishes the back, generally need remove after lifting the shaping case, just can expose the product, just can get the piece, it is very inconvenient to get the piece, and the whole height of shaping jar is big, lead to the whole height of SLM equipment, 3.5 times that has reached shaping jar piston stroke, occupation space is big.
SUMMERY OF THE UTILITY MODEL
In order to compensate above not enough, the utility model provides an inside and outside jar structure of laser powder melting forming technique, the cylinder body height of the inside and outside jar structure of this laser powder melting forming technique can stretch out and draw back, conveniently gets the material after processing is accomplished, can separate with the frame of SLM equipment, is convenient for test, whole highly hangs down.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: the utility model provides an inside and outside cylinder structure of laser powder melting forming technique, including the external cylinder body, the internal cylinder body, a piston, piston lift drive and internal cylinder body lift drive, external cylinder body and internal cylinder body upper end all form open structure, the internal cylinder body circumferencial direction locking and the axial can be gliding inserts and locate in the external cylinder body, the internal cylinder body can stretch out the external cylinder body outside through the open structure of external cylinder body upper end and set for length, piston circumferencial direction locking and axial can gliding sealed insert locate in the internal cylinder body, piston upper end surface forms the profile, piston lift drive drives piston elevating movement in the internal cylinder body, internal cylinder body lift drive drives internal cylinder body elevating movement in the external cylinder body.
As a further improvement of the utility model, the piston upper end surface covering has the shaping bottom plate, and the shaping bottom plate can stretch out the interior cylinder body open structure outside completely, is equipped with on the shaping bottom plate lateral wall and supplies fork male socket of fork truck.
As a further improvement of the utility model, outer cylinder body upper end opening forms the throat structure of radial dimension shrink, and the inner cylinder body lateral wall passes through sealing member and outer cylinder body upper end opening inside wall dynamic seal and is connected, and inner cylinder drive arrangement holds in the cavity that forms between outer cylinder body inside wall and the inner cylinder body lateral wall.
As a further improvement of the utility model, the inner cylinder body is the equal open-ended straight cylinder structure in upper and lower both ends, and the piston lower extreme is fixed to be equipped with a connecting rod, and the connecting rod lower extreme stretches out in the inner cylinder body lower extreme opening outside, and the connecting rod lower extreme is fixed to be equipped with a connecting plate, and piston drive holds in the cavity that forms between outer cylinder body inside wall and the inner cylinder body lateral wall, and piston drive links to each other and drives its elevating movement with the connecting plate.
As a further improvement of the utility model, still fixedly on the outer cylinder body inside wall being equipped with piston lifting guide and inner cylinder lifting guide, connecting plate and inner cylinder body outside wall circumferencial direction locking respectively and the axial can gliding cover locate on piston lifting guide and the inner cylinder lifting guide.
As a further improvement of the utility model, piston lift drive dress, piston elevating guide, inner cylinder lift drive and inner cylinder elevating guide are two, and two piston lift drive dresses and two piston elevating guide are symmetric state and distribute inside the double-phase offside of external cylinder body, and two inner cylinder lift drive and two inner cylinder elevating guide are symmetric state and distribute inside the other double-phase offside of external cylinder body.
As a further improvement of the utility model, the interior cylinder body cross section is the square frame structure, and outer cylinder body includes cylinder, cylinder cap and cylinder bottom, fixed mounting is on the upper and lower both ends of cylinder respectively at cylinder cap and cylinder bottom, and the cylinder cap includes the square frame main part that matches with the interior cylinder body lateral wall and is located the baffle on the square frame main part lower extreme lateral surface, the baffle extends along radial outside from square frame main part lateral wall, and the cylinder of outer cylinder body is the barrel-shaped body that the overall structure appearance that the square frame main part of cross section and cylinder cap and baffle splice becomes unanimous, and the cylinder bottom is the slab structure unanimous with cylinder cross section appearance.
As a further improvement of the utility model, piston drive arrangement includes a servo motor and first lead screw, a servo motor fixed mounting is on the outer cylinder body, and first lead screw axial locking and circumferencial direction can the pivoted install in the cavity that forms between outer cylinder body and the inner cylinder body, and first lead screw of a servo motor drive is rotatory, first lead screw and connecting plate activity spiro union.
As a further improvement of the utility model, inner cylinder drive arrangement includes second servo motor, second lead screw and nut cover, the fixed evagination otic placode that is equipped with on the inner cylinder body lateral wall, second lead screw fixed mounting is on the evagination otic placode in the inner cylinder body outside, second lead screw axial and inner cylinder body axial direction parallel, nut cover circumferencial direction can rotate and the installation of axial locking on the outer cylinder body inside wall, nut cover activity spiro union in the second lead screw outside, second servo motor fixed mounting is on the outer cylinder body, and second servo motor drives the nut cover rotatory.
As a further improvement of the utility model, still be equipped with middle cylinder body and middle cylinder body drive arrangement, cylinder body cover establish in the middle of the cylinder body is from inside to outside circumferencial direction locking and axial can relative slip in proper order establishes and forms middle cylinder body group, and middle cylinder body group is inserted and is located between outer cylinder body and the inner cylinder body, cylinder body elevating movement in the middle of the middle cylinder body drive arrangement drive.
The utility model has the beneficial technical effects that: the utility model discloses set up independent guidance system in the cylinder body, irrelevant with the frame, the piston is all based on "no rigid body of assembling" with the outer jar one by one with the inner jar, leads, and the basis of leading is single, and the precision is easy to control, but offline independent inching and full stroke displacement test carry out 1000 ~ 5000 times examination, guarantees most core inching and longitudinal motion' S reliability, still can carry out long-time offline heating and carry out the temperature test, and the off-line carries out room temperature and high temperature powder density and airtight test, the utility model discloses an after the inner cylinder body moves down and gets into in the outer cylinder body, expose the formed part and can fork and get, very conveniently get the piece, created good condition for the structural arrangement of shaping room, and holistic overall height is 2.5 ~ 3.0S, is less than traditional 3.5S (S is the stroke).
Drawings
FIG. 1 is a schematic view of the structure principle of the present invention;
FIG. 2 is a cross-sectional view of the BOC of FIG. 1;
FIG. 3 is a schematic view of a step of forming a product using the present invention;
figure 4 is adopting the utility model discloses a get material state diagram.
Detailed Description
Example (b): the utility model provides an inside and outside cylinder structure of laser powder melting forming technique, including outer cylinder body 1, interior cylinder body 2, piston 3, piston lift drive arrangement and interior cylinder body lift drive arrangement, outer cylinder body 1 and interior cylinder body 2 upper end all form open structure, 2 circumferencial direction locking of interior cylinder body and axial can be gliding insert locate in outer cylinder body 1, interior cylinder body 2 can stretch out the outside of outer cylinder body 1 through the open structure of outer cylinder body 1 upper end and set for length, 3 circumferencial direction locking of piston and axial can gliding seal insert locate in interior cylinder body 2, the upper end surface of piston 3 forms the profiled surface, piston lift drive arrangement drive piston 3 is the elevating movement in interior cylinder body 2, interior cylinder body lift drive arrangement drive interior cylinder body 2 is the elevating movement in outer cylinder body 1.
When adopting this telescoping cylinder to carry out product laser forming, make interior cylinder body 2 rise earlier sealed with the scanning plane bottom surface of shaping room, then rise piston 3, make shaping face and scanning plane bottom surface parallel and level on the piston 3, laser carries out laser scanning shaping on the shaping face on the piston 3, after the product shaping is accomplished, the interior cylinder descends, can expose the shaping product from the cylinder body, the fork truck of being convenient for inserts and gets, when getting the material, need not to remove the shaping case, also need not to remove the shaping jar, it is convenient to get the material, and swift, and because this kind of structure makes the high extending structure of cylinder body shaping, greatly reduced the whole height, make SLM equipment whole height reduce by a wide margin, and the space is saved.
The upper end surface of the piston 3 is covered with a forming bottom plate 4, the forming bottom plate 4 can completely extend out of the opening structure of the inner cylinder body 2, and a socket 5 for inserting a fork of a forklift is arranged on the side wall of the forming bottom plate 4. The product is formed on the forming bottom plate 4, and after the forming is completed, the forming bottom plate 4 is inserted and taken by a forklift, so that the product can be taken away, and the taking of the product is convenient.
The opening forms the throat structure of radial dimension shrink in 1 upper end of the outer cylinder body, and 2 lateral walls of the inner cylinder body are connected with the inside wall of the opening in 1 upper end of the outer cylinder body in a dynamic sealing manner through a sealing element, and the inner cylinder driving device is accommodated in a cavity formed between the inside wall of the outer cylinder body 1 and the outside wall of the inner cylinder body 2. The outer cylinder body 1 is designed to be in a necking structure, the inner cylinder body 2 is radially positioned by the necking structure, a cavity for accommodating the driving device is formed between the inner cylinder body 2 and the outer cylinder body 1, the driving device is independent of a frame of the SLM equipment, the telescopic cylinder is separated from the frame, independent inching and full-stroke displacement testing, long-time off-line heating temperature testing and room temperature and high temperature powder and air tightness testing can be achieved off line, and testing on the frame and influence on other parts of the SLM equipment are avoided.
The inner cylinder body 2 is a straight cylinder structure with openings at the upper end and the lower end, a connecting rod 6 is fixedly arranged at the lower end of the piston 3, the lower end of the connecting rod 6 extends out of the opening at the lower end of the inner cylinder body 2, a connecting plate 7 is fixedly arranged at the lower end of the connecting rod 6, the piston 3 driving device is accommodated in a cavity formed between the inner side wall of the outer cylinder body 1 and the outer side wall of the inner cylinder body 2, and the piston 3 driving device is connected with the connecting plate 7 and drives the connecting plate to move up and down. The inner cylinder body 2 is designed into a tubular structure with two open ends, the piston 3 driving device is arranged in the air drop between the inner cylinder body 2 and the outer cylinder body 1, the inner space of the inner cylinder body 2 is saved, the height of the inner cylinder body 2 is effectively reduced, and the piston 3 and the inner cylinder are both assembled and driven on the basis of the fixed outer cylinder body 1, so that the movement precision of the inner cylinder and the piston 3 is improved.
Still fixedly on the 1 inside wall of outer cylinder body be equipped with piston lifting guide rail 8 and inner cylinder lifting guide rail 9, connecting plate 7 and the 2 outside walls of inner cylinder body are circumferencial direction locking respectively and the slidable cover of axial is located on piston lifting guide rail 8 and the inner cylinder lifting guide rail 9. The piston 3 and the inner cylinder are guided by the outer cylinder without an assembled rigid structure, the guide foundation is single, and the precision is easy to control.
The piston 3 lifting driving device, the piston lifting guide rails 8, the inner cylinder lifting driving device and the inner cylinder lifting guide rails 9 are two, the two piston 3 lifting driving devices and the two piston lifting guide rails 8 are symmetrically distributed inside two opposite sides of the outer cylinder body 1, and the two inner cylinder lifting driving devices and the two inner cylinder lifting guide rails 9 are symmetrically distributed inside the other two opposite sides of the outer cylinder body 1. A piston 3 lifting drive device and a piston lifting guide rail 8 form a group, an inner cylinder lifting drive device and an inner cylinder lifting guide rail 9 form a group, and the two groups of lifting drive devices and the two groups of inner cylinder lifting guide rails are symmetrically arranged, so that the improvement of the motion precision of the piston 3 and the inner cylinder body 2 is facilitated, and the smoothness of the lifting motion is ensured.
The cross section of the inner cylinder body 2 is of a square frame structure, the outer cylinder body 1 comprises a cylinder barrel 16, a cylinder cover 17 and a cylinder bottom 18, the cylinder cover 17 and the cylinder bottom 18 are fixedly installed at the upper end and the lower end of the cylinder barrel 16 respectively, the cylinder cover 17 comprises a square frame-shaped main body matched with the outer side wall of the inner cylinder body 2 and a baffle plate located on the outer side face of the lower end of the square frame-shaped main body, the baffle plate extends outwards from the outer side wall of the square frame-shaped main body along the radial direction, the cylinder barrel 16 of the outer cylinder body 1 is a barrel-shaped body with the cross section being consistent with the overall structure formed by splicing the square frame-shaped main body of the cylinder cover 17 and the baffle plate, and the cylinder bottom 18 is of a flat plate structure with the cross section of the cylinder barrel 16. The baffle can be rectangle or semi-circle etc., baffle optimum symmetric distribution is on four sides of the square frame shape main part of cylinder cap 17, outer cylinder body 1 makes the components of a whole that can function independently structure and is favorable to processing preparation, inner cylinder body 2 and outer cylinder body 1 can also adopt round jar structure except adopting square jar structure, inner cylinder body 2 and outer cylinder body 1's collocation can be square jar structure prescription jar structure, round jar structure prescription jar structure, square jar structure prescription jar structure or round jar structure prescription jar structure, the shape of inner cylinder body 2 and outer cylinder body 1 cross section can be the same, also can be different, can be for any shape collocation, as long as can realize mutual concertina movement can.
The piston 3 driving device comprises a first servo motor 10 and a first screw rod 11, the first servo motor 10 is fixedly installed on the outer cylinder body 1, the first screw rod 11 is axially stopped and can be installed in a cavity formed between the outer cylinder body 1 and the inner cylinder body 2 in a rotating mode in the circumferential direction, the first servo motor 10 drives the first screw rod 11 to rotate, and the first screw rod 11 is movably connected with the connecting plate 7 in a threaded mode. The servo motor is adopted to drive the screw rod to rotate so as to drive the connecting plate 7 to move up and down, so that the piston 3 is driven, the structure is simple, inching is convenient to realize, and other driving modes such as an oil cylinder mode and the like can be adopted.
The inner cylinder driving device comprises a second servo motor 12, a second screw rod 13 and a nut sleeve 14, an outer convex lug plate 15 is fixedly arranged on the outer side wall of the inner cylinder body 2, the second screw rod 13 is fixedly arranged on the outer convex lug plate 15 on the outer side of the inner cylinder body 2, the second screw rod 13 is axially parallel to the inner cylinder body 2 in an axial direction, the nut sleeve 14 can be installed on the inner side wall of the outer cylinder body 1 in a rotating and axial stopping mode in the circumferential direction, the nut sleeve 14 is movably screwed on the outer side of the second screw rod 13, the second servo motor 12 is fixedly installed on the outer cylinder body 1, and the second servo motor 12 drives the nut sleeve 14 to rotate. The driving of the inner cylinder is achieved by forming the outer lug plate 15 on the outside of the inner cylinder, the outer lug plate 15 being distributed preferably in an axisymmetric manner on the outside wall of the inner cylinder body 2.
The cylinder body group is inserted between the outer cylinder body 1 and the inner cylinder body 2, and the middle cylinder body driving device drives the middle cylinder body to move up and down.
When the telescopic cylinder is adopted for laser scanning forming, the method comprises the following steps:
the method comprises the following steps: lifting the inner cylinder body 2 to seal with the bottom surface of the scanning plane;
step two: raising the piston 3 and aligning the forming bed 4 with the bottom surface of the scanning plane 19;
step three: the forming bottom plate 4 gradually descends to realize the scanning of the laser beam 20 layer by layer, and the forming processing is finished when the forming bottom plate 4 descends to the lowest point;
step four: the inner cylinder descends to the lowest point;
step five: adjusting the height of the forming bottom plate 4 to enable the jack 5 on the forming bottom plate to be as high as the fork of a forklift;
step six: and forking the forming bottom plate 4 and the forming piece on the forming bottom plate by using a forklift to realize material taking.
Claims (10)
1. An inner and outer cylinder structure of laser powder melting forming technology is characterized in that: including outer cylinder body (1), inner cylinder body (2), piston (3), piston lift drive and inner cylinder body lift drive, outer cylinder body and inner cylinder body upper end all form open structure, inner cylinder body circumferencial direction locking and axial can gliding insert locate in the outer cylinder body, the inner cylinder body can stretch out the outer cylinder body outside through the open structure of outer cylinder body upper end and set for length, piston circumferencial direction locking and axial can gliding sealed insert locate in the inner cylinder body, piston upper end surface forms the profiled surface, piston lift drive is elevating movement in the inner cylinder body, inner cylinder body lift drive drives inner cylinder body elevating movement in the outer cylinder body.
2. The inner and outer cylinder structures of the laser powder fusion forming technique as claimed in claim 1, wherein: the piston upper end surface covers there is shaping bottom plate (4), and the shaping bottom plate can stretch out the inner cylinder body open structure outside completely, is equipped with on the shaping bottom plate lateral wall and supplies fork male socket (5).
3. The inner and outer cylinder structures for laser powder fusion molding according to claim 1, wherein: the outer cylinder body upper end opening forms the throat structure of radial dimension shrink, and the inner cylinder body lateral wall passes through sealing member and outer cylinder body upper end opening inside wall dynamic seal and is connected, and inner cylinder drive arrangement holds in the cavity that forms between outer cylinder body inside wall and the inner cylinder body lateral wall.
4. The inner and outer cylinder structures of the laser powder fusion forming technique as claimed in claim 3, wherein: the inner cylinder body is of a straight cylinder structure with openings at the upper end and the lower end, a connecting rod (6) is fixedly arranged at the lower end of the piston, the lower end of the connecting rod stretches out of the opening at the lower end of the inner cylinder body, a connecting plate (7) is fixedly arranged at the lower end of the connecting rod, the piston driving device is accommodated in a cavity formed between the inner side wall of the outer cylinder body and the outer side wall of the inner cylinder body, and the piston driving device is connected with the connecting plate and drives the connecting plate to move up and down.
5. The inner and outer cylinder structures of the laser powder fusion forming technique as claimed in claim 4, wherein: still fixedly on the outer cylinder body inside wall be equipped with piston lifting guide rail (8) and inner cylinder lifting guide rail (9), connecting plate and inner cylinder body outside wall circumferencial direction locking respectively and the axial can gliding cover locate on piston lifting guide rail and the inner cylinder lifting guide rail.
6. The inner and outer cylinder structures for laser powder fusion molding as defined in claim 5, wherein: piston lift drive dress, piston lift guide rail, inner cylinder lift drive arrangement and inner cylinder lift guide rail are two, and two piston lift drive dresses and two piston lift guide rails are the symmetric state and distribute inside the double-phase offside of outer cylinder body, and two inner cylinder lift drive arrangements and two inner cylinder lift guide rails are the symmetric state and distribute inside the other double-phase offside of outer cylinder body.
7. The inner and outer cylinder structures of the laser powder fusion forming technique as claimed in claim 4, wherein: the cross section of the inner cylinder body is of a square frame structure, the outer cylinder body comprises a cylinder barrel (16), a cylinder cover (17) and a cylinder bottom (18), the cylinder cover and the cylinder bottom are fixedly installed on the upper end and the lower end of the cylinder barrel respectively, the cylinder cover comprises a square frame-shaped main body matched with the outer side wall of the inner cylinder body and a baffle positioned on the outer side surface of the lower end of the square frame-shaped main body, the baffle extends outwards along the radial direction from the outer side wall of the square frame-shaped main body, the cylinder barrel of the outer cylinder body is a barrel-shaped body with the cross section consistent with the overall structure formed by splicing the square frame-shaped main body of the cylinder cover and the baffle, and the cylinder bottom is of a flat plate structure consistent with the cross section of the cylinder barrel.
8. The inner and outer cylinder structures of the laser powder fusion forming technique as claimed in claim 4, wherein: the piston driving device comprises a first servo motor (10) and a first screw rod (11), the first servo motor is fixedly installed on the outer cylinder body, the first screw rod is axially stopped and can be installed in a cavity formed between the outer cylinder body and the inner cylinder body in a rotating mode in the circumferential direction, the first servo motor drives the first screw rod to rotate, and the first screw rod is movably connected with the connecting plate in a threaded mode.
9. The inner and outer cylinder structures of the laser powder fusion forming technique as claimed in claim 3, wherein: the inner cylinder driving device comprises a second servo motor (12), a second lead screw (13) and a nut sleeve (14), an outer convex lug plate (15) is fixedly arranged on the outer side wall of the inner cylinder body, the second lead screw is fixedly arranged on the outer convex lug plate on the outer side of the inner cylinder body, the second lead screw is axially parallel to the inner cylinder body, the nut sleeve can be installed on the inner side wall of the outer cylinder body in a rotating and axial stopping mode in the circumferential direction, the nut sleeve is movably screwed on the outer side of the second lead screw, the second servo motor is fixedly arranged on the outer cylinder body, and the second servo motor drives the nut sleeve to rotate.
10. The inner and outer cylinder structures of the laser powder fusion forming technique as claimed in claim 1, wherein: the cylinder body group is inserted between the outer cylinder body and the inner cylinder body, and the middle cylinder body driving device drives the middle cylinder body to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120532395.5U CN214920509U (en) | 2021-03-15 | 2021-03-15 | Inner and outer cylinder structure of laser powder melting forming technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120532395.5U CN214920509U (en) | 2021-03-15 | 2021-03-15 | Inner and outer cylinder structure of laser powder melting forming technology |
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| Publication Number | Publication Date |
|---|---|
| CN214920509U true CN214920509U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120532395.5U Active CN214920509U (en) | 2021-03-15 | 2021-03-15 | Inner and outer cylinder structure of laser powder melting forming technology |
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| Country | Link |
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| CN (1) | CN214920509U (en) |
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2021
- 2021-03-15 CN CN202120532395.5U patent/CN214920509U/en active Active
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Address after: Laser factory building a12231, Sucheng District, Jiangsu Province Patentee after: JIANGSU YONGNIAN LASER FORMING TECH. CO.,LTD. Address before: 215300 building 4, robot industrial park, 232 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: JIANGSU YONGNIAN LASER FORMING TECH. CO.,LTD. |