CN112810146A

CN112810146A - Fixing device and photocuring 3D printer of shaping platform

Info

Publication number: CN112810146A
Application number: CN202011616008.2A
Authority: CN
Inventors: 刘辉林; 唐京科; 陈春; 敖丹军; 陈勋; 陈晓婵
Original assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Current assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-05-18

Abstract

The invention discloses a fixing device of a forming platform and a photocuring 3D printer, and relates to the technical field of 3D printers. The fixing device of the forming platform comprises a fixing plate, a locking mechanism and a supporting plate, wherein one end of the fixing plate is connected with the supporting plate, the locking mechanism is located above the supporting plate, the forming platform is provided with a connecting piece, the connecting piece is provided with a connecting platform, and the connecting platform is located between the locking mechanism and the supporting plate. The locking mechanism comprises a pressing block, a rotating assembly, a pressing bolt and an elastic pressing piece, the pressing bolt penetrates through the pressing block and the elastic pressing piece to be connected with the rotating assembly, and under the action of the rotating assembly, the elastic pressing piece compresses, so that the pressing block abuts against the connecting platform on the supporting plate. The forming platform is fixed through the rotating assembly, so that the operation is simple, time and labor are saved, the stability of fixing the forming platform is high, and the forming platform is not influenced by the hand feeling and the force of an operator; and then guaranteed the printing effect of photocuring 3D printer.

Description

Fixing device and photocuring 3D printer of shaping platform

Technical Field

The invention relates to the technical field of 3D printers, in particular to a fixing device of a forming platform and a photocuring 3D printer.

Background

The forming platform is a key part for forming a 3D model of the photocuring 3D printer, the forming platform is usually fixed on a lifting mechanism and driven by the lifting mechanism to move up and down in a trough, and a curing light source cures resin into a specific shape.

The forming platform in the prior art is mostly fixed by fastening bolts, and the fixing scheme has the following defects: firstly, the fastening bolt is time-consuming and labor-consuming to disassemble and assemble; secondly, the firmness of the fixing of the forming platform is influenced by different hand feeling or using strength of operators; thirdly, the tool for disassembling the fastening bolt is easy to be adhered with resin and oil stain, the cleaning difficulty is large, and the tool is used for disassembling and assembling the fastening bolt for a long time, which may lead to the rusting of the fastening bolt.

Therefore, a fixing device for a forming platform is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a fixing device of a forming platform and a photocuring 3D printer, so that the forming platform is easy to fix and firm in fixing, and the printing effect is ensured.

In order to achieve the purpose, the invention adopts the following technical scheme:

a forming table fixture, comprising:

the locking mechanism is positioned above the supporting plate, connecting pieces are arranged at two ends of the forming platform, a connecting platform is arranged on each connecting piece, and the connecting platform is positioned between the locking mechanism and the supporting plate;

the locking mechanism comprises a pressing block, a rotating assembly, a pressing bolt and an elastic pressing piece, the pressing bolt penetrates through the pressing block, the elastic pressing piece is connected with the rotating assembly, and under the action of the rotating assembly, the elastic pressing piece compresses, so that the pressing block abuts against the connecting platform on the supporting plate.

In order to fix two ends of the forming platform at the same time, the rotating assembly comprises two cams, two cam seats and a rotating shaft for connecting the two cams, the rotating shaft drives the cams to rotate in the cam seats, the cam seats are located above the pressing blocks, the elastic pressing pieces are located between the cam seats and the pressing blocks, and the pressing bolts penetrate through the pressing blocks and are in threaded connection with the cam seats.

Optionally, a supporting column is arranged on the fixing plate, the supporting column is arranged between the two cams, and the rotating shaft is rotatably connected with the supporting column.

Preferably, in order to make the support of the rotating shaft more stable, two support columns are provided, and a first through hole is provided on each of the two support columns; the rotating shaft penetrates through the first through hole to be connected with the two cams respectively. The setting of support column has restricted the ascending motion of pivot in the direction of perpendicular to shaping platform for the pivot can not reciprocate, can only rotate around the axis of the first through-hole of two support columns.

In order to facilitate the application of force to the rotating shaft by an operator, the locking mechanism further comprises a rotating shaft handle, the rotating shaft handle is fixedly connected with the rotating shaft and positioned between the supporting columns, and the rotating shaft handle drives the rotating shaft to rotate through pressing.

In order to facilitate the removal of the forming platform, the clearance between the pressing block and the connecting platform is increased. The locking mechanism further comprises a reset assembly, the reset assembly is arranged on one side, away from the elastic pressing piece, of the cam seat and can drive the cam seat to move towards the direction away from the pressing block.

Preferably, the reset assembly comprises a reset bolt and an elastic reset piece, and the reset bolt penetrates through the elastic reset piece to be in threaded connection with the cam seat.

In order to prevent the rotating assembly from being touched by an operator by mistake, the fixing stability of the forming platform is ensured, and the forming platform is convenient to disassemble and assemble. The locking mechanism further comprises a shell, the shell is connected with the fixing plate, a placing groove is formed in the shell, and the rotating shaft handle is arranged in the placing groove.

The utility model provides a photocuring 3D printer, includes elevating system and shaping platform, the elevating system drive the shaping platform reciprocates, the shaping platform passes through any one of above the fixing device of shaping platform fix elevating system is last, the fixed plate with elevating system fixed connection.

In order to place the forming platform on the fixing device of the forming platform and take the forming platform down from the fixing device of the forming platform, connecting pieces are arranged at two ends of the forming platform, and a dismounting handle is arranged on one side, away from each other, of each connecting piece.

The invention has the beneficial effects that:

according to the fixing device of the forming platform and the photocuring 3D printer, one end of the fixing plate is connected with the supporting plate. The two ends of the forming platform are provided with connecting pieces, the connecting pieces are provided with connecting platforms, the locking mechanism is located above the supporting plate, and the two connecting platforms are located between the locking mechanism and the supporting plate. Locking mechanism includes compact heap, rotating assembly, clamp bolt and elasticity compressing tightly, and clamp bolt passes the compact heap, elasticity compressing tightly is connected with rotating assembly, and elasticity compressing tightly compresses tightly the piece compression under rotating assembly's effect for elasticity compressing tightly the piece and has the trend to being close to the motion of compact heap all the time, and the effect of elasticity compressing tightly is on the compact heap, and the compact heap will connect the platform butt in the backup pad, thereby fixes the shaping platform on elevating system. According to the fixing device for the forming platform, the forming platform is fixed through the rotating assembly, the operation is simple, time and labor are saved, the stability of fixing of the forming platform is high, and the fixing device is not influenced by the hand feeling and the force of an operator; and then guaranteed the printing effect of photocuring 3D printer.

Drawings

Fig. 1 is a schematic structural diagram of a fixing device of a forming platform according to a second embodiment of the present invention;

FIG. 2 is a cross-sectional view of a fixing device of a forming platform according to a second embodiment of the present invention;

fig. 3 is an exploded view of a fixing device of a forming platform according to a second embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a cam on a fixing device of a forming platform in a first state according to a second embodiment of the present invention;

fig. 5 is a structural schematic view of a cam on a fixing device of a forming platform provided by the second embodiment of the invention in a second state.

In the figure:

100. a forming platform;

101. a connecting member; 102. connecting the platform; 103. disassembling and assembling the handle; 104. a platform body;

1021. a first groove;

1. a fixing plate; 2. a support plate; 3. a compression block; 4. a rotating assembly; 5. a hold-down bolt; 6. an elastic pressing member; 7. a spindle handle; 8. a reset assembly; 9. a housing;

11. a support pillar; 12. a first connecting plate; 13. a second connecting plate; 14. connecting columns; 31. a first protrusion; 32. a second groove; 41. a cam; 42. a cam seat; 43. a rotating shaft; 81. resetting the bolt; 82. an elastic reset member; 91. a placement groove;

111. a first through hole; 421. a second protrusion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The terms "connected" and "fixed," unless expressly specified or limited otherwise, are to be construed broadly and can, for example, be fixedly connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

The embodiment provides a photocuring 3D printer, including elevating system and shaping platform 100, elevating system drive shaping platform 100 reciprocates, and elevating system drive shaping platform 100 removes and soaks liquid resin, recycles the light source projection to utilize the display screen system to control the scanning of light source facula, on the shaping platform 100 is reached in the first layer shape of object and shaping on the liquid resin surface delineating out, so relapse, the final entity stromatolite of accomplishing is printed the shaping. Wherein, the forming platform 100 is fixed on the lifting mechanism by the fixing device of the forming platform. Fixing device through the shaping platform fixes shaping platform 100 on elevating system, for the fixed mode through fastening bolt among the prior art, changes in the dismouting, labour saving and time saving, and the stability that shaping platform 100 is fixed is higher, has guaranteed the printing effect of photocuring 3D printer.

In order to facilitate the molding platform 100 to be placed on the fixing device of the molding platform and to be taken down from the fixing device of the molding platform, the molding platform 100 comprises a platform body 104 and a connecting piece 101, the connecting piece 101 is arranged at two ends of the platform body 104 and is detachably connected with the platform body 104 through a fastening bolt, a connecting platform 102 is arranged on the connecting piece 101, and the connecting platform 102 and the connecting piece 101 are integrally molded. The two connecting pieces 101 are provided with a dismounting handle 103 on one side away from each other, and the dismounting handle 103 is detachably connected with the connecting platform 102 through a fastening bolt. The arrangement of the detachable handles 103 at the two ends of the forming platform 100 is more convenient for the operator to take and place the forming platform 100.

Example two

As shown in fig. 1-3, the present embodiment provides a fixing device for a forming platform, which includes a fixing plate 1, a locking mechanism and a supporting plate 2, wherein one end of the fixing plate 1 is fixedly connected to an elevating mechanism of the forming platform 100, and the other end is connected to the supporting plate 2, the locking mechanism is located above the supporting plate 2, a connecting member 101 is provided on the forming platform 100, a connecting platform 102 is provided on the connecting member 101, and the connecting platform 102 is located between the locking mechanism and the supporting plate 2. The locking mechanism comprises a pressing block 3, a rotating component 4, a pressing bolt 5 and an elastic pressing piece 6, the pressing bolt 5 penetrates through the pressing block 3 and the elastic pressing piece 6 to be connected with the rotating component 4, and under the action of the rotating component 4, the elastic pressing piece 6 is compressed, so that the pressing block 3 abuts against the connecting platform 102 on the supporting plate 2.

The fixing device of the forming platform provided in this embodiment is configured to fixedly connect one end of the fixing plate 1 to the lifting mechanism of the forming platform 100, and connect the other end of the fixing plate to the supporting plate 2. The locking mechanism is located above the support plate 2, and the connecting platforms 102 at both ends of the forming platform 100 are located between the locking mechanism and the support plate 2. Locking mechanism includes compact heap 3, rotating assembly 4, clamp bolt 5 and elasticity compressing tightly piece 6, clamp bolt 5 passes compact heap 3, elasticity compressing tightly 6 is connected with rotating assembly 4, elasticity compressing tightly 6 compression under rotating assembly 4's effect, so that elasticity compressing tightly 6 has the trend to being close to compact heap 3 motion all the time, the effect of elasticity compressing tightly 6 is on compact heap 3, compact heap 3 will be connected platform 102 butt in backup pad 2, thereby fix forming platform 100 on elevating system. The fixing device for the forming platform provided by the embodiment fixes the forming platform 100 through the rotating assembly 4, is simple to operate, saves time and labor, has high stability in fixing the forming platform 100, and is not affected by the hand feeling and force of an operator; and then guaranteed the printing effect of photocuring 3D printer.

In order to facilitate the connection of the fixing plate 1 with the lifting mechanism and the supporting plate 2 and optimize the layout of the locking mechanism on the photocuring 3D printer. The fixing plate 1 comprises a first connecting plate 12 and a second connecting plate 13 which are vertically arranged, the first connecting plate 12 is fixedly connected with the lifting mechanism of the forming platform 100, the second connecting plate 13 is fixedly connected with the supporting plate 2 through a fastening bolt, and the locking mechanism is arranged on the second connecting plate 13.

As shown in fig. 2 and 3, in order to fix both ends of the forming platform 100 at the same time, the rotating assembly 4 includes two cams 41, two cam seats 42 and a rotating shaft 43 connecting the two cams 41, the rotating shaft 43 drives the cams 41 to rotate in the cam seats 42, the cam seats 42 are located above the pressing block 3, the elastic pressing piece 6 is located between the cam seats 42 and the pressing block 3, and the pressing bolt 5 penetrates through the pressing block 3 and the elastic pressing piece 6 to be screwed with the cam seats 42. In this embodiment, the number of the pressing blocks 3 is two, two pressing blocks 3 are arranged corresponding to the connecting platforms 102 at two ends of the forming platform 100, each pressing block 3 is provided with two counter bores, the lower end face of the cam seat 42 is also provided with two counter bores, the pressing bolt 5 penetrates through the counter bores on the pressing blocks 3, the elastic pressing piece 6 and the counter bores on the lower end face of the cam seat 42 are in threaded connection with the cam seat 42, the elastic pressing piece 6 is located in a large hole of the counter bore on the lower end face of the cam seat 42, a small hole of the counter bore on the lower end face of the cam seat 42 is arranged as a threaded hole, and the pressing bolt 5 is in threaded connection with the threaded hole. Of course, in other embodiments, the rotating assembly 4 is not limited to the cam 41, the cam seat 42 and the rotating shaft 43, and a driving structure such as an electric push rod, an air cylinder or a hydraulic cylinder may be adopted.

Preferably, as shown in fig. 3, a first groove 1021 is arranged on the connection platform 102, a first protrusion 31 is arranged at the bottom of the pressing block 3, and the pressing block 3 is in fit abutment with the first groove 1021 through the first protrusion 31 under the action of the elastic pressing piece 6, so as to limit the sliding of the pressing block 3 relative to the connection platform 102; similarly, a second groove 32 is formed in the top of the pressing block 3, a second protrusion 421 is formed in the bottom of the cam seat 42, and the pressing block 3 and the cam seat 42 are in fit abutment through the second groove 32 and the second protrusion 421 to limit the cam seat 42 to slide relative to the pressing block 3; thereby increasing the stability of the stationary forming table 100.

In this embodiment, the supporting column 11 is disposed on the second connecting plate 13 of the fixing plate 1, the supporting column 11 is disposed between the two cams 41, the two cam seats 42 are respectively disposed on two sides of the second connecting plate 13, and the rotating shaft 43 is rotatably connected to the supporting column 11. Exemplarily, two support columns 11 are provided, and a first through hole 111 is provided on each of the two support columns 11; after the rotating shaft 43 passes through the first through holes 111 of the two supporting columns 11, two ends of the rotating shaft are respectively fixedly connected with the two cams 41. The arrangement of the supporting columns 11 restricts the movement of the rotating shaft 43 in the direction perpendicular to the molding platform 100, so that the rotating shaft 43 does not move up and down but can only rotate around the axes of the first through holes 111 of the two supporting columns 11.

In this embodiment, the pressing bolt 5 includes a bolt section and a threaded section, the bolt section of the pressing bolt 5 passes through the counter bore of the pressing block 3 and the elastic pressing member 6, and the threaded section is screwed with the threaded hole of the counter bore of the cam seat 42. As shown in fig. 4, when the rotating shaft 43 rotates, so that the cam 41 is in the first state, the pressure of the cam seat 42 on the elastic pressing piece 6 is increased, the elastic pressing piece 6 is compressed, and always has a tendency of moving toward the pressing block 3, so that the pressing block 3 simultaneously abuts the connecting platforms 102 at the two ends of the forming platform 100 against the support plate 2, and the forming platform 100 is fixed; as shown in fig. 5, when the rotating shaft 43 rotates to make the cam 41 in the second state, the pressure of the cam seat 42 on the elastic pressing member 6 is reduced, a force away from the pressing block 3 is applied to the cam seat 42 under the elastic restoring force of the elastic pressing member 6, and since the pressing bolt 5 passes through the pressing block 3, the elastic pressing member 6 is screwed with the cam seat 42, the pressing block 3 is subjected to a force away from the connecting platform 102 under the action of the pressing bolt 5, so that the forming platform 100 can be moved out from between the pressing block 3 and the support plate 2.

In order to facilitate the operator to apply force to the rotating shaft 43, the locking mechanism further comprises a rotating shaft handle 7, the rotating shaft handle 7 is fixedly connected with the rotating shaft 43 and is located between the two supporting columns 11, and the rotating shaft 43 is driven to rotate by pressing the rotating shaft handle 7.

Preferably, in order to prevent the operator from accidentally touching the rotating assembly 4, the stability of fixing the forming platform 100 is ensured, and the forming platform 100 is convenient to disassemble and assemble. The locking mechanism further comprises a shell 9, the shell 9 is connected with the fixing plate 1, a placing groove 91 is formed in the shell 9, and the rotating shaft handle 7 is arranged in the placing groove 91. In this embodiment, the rotating assembly 4 is disposed in the housing 9, two side walls of the placing slot 91 are both provided with avoiding holes, and the rotating shaft 43 passes through the avoiding holes and is fixedly connected with the rotating shaft handle 7 in the placing slot 91. The second connecting plate 13 is further provided with four connecting columns 14, two sides of each supporting column 11 are provided with one connecting column 14, the center of each connecting column 14 is provided with a threaded hole, and fastening bolts extend into the shell 9 from the outside of the shell 9 and are connected with the threaded holes in the connecting columns 14 so as to fix the shell 9 and the second connecting plate 13.

Further, the locking mechanism further comprises a reset assembly 8, the reset assembly 8 is arranged on one side, away from the elastic pressing piece 6, of the cam seat 42, and can drive the cam seat 42 to move towards the direction away from the pressing block 3. The reset assembly 8 applies an acting force to the cam seat 42, the acting force moves in the direction away from the pressing block 3, and the cam seat 42 is jacked up, so that the pressing block 3 is jacked up by the pressing bolt 5 under the action of the elastic pressing piece 6, the gap between the pressing block 3 and the connecting platform 102 is increased, and the forming platform 100 can be moved out conveniently.

Illustratively, as shown in fig. 2, the reset assembly 8 includes a reset bolt 81 and an elastic reset member 82, and the reset bolt 81 is threaded with the cam seat 42 through the elastic reset member 82. In this embodiment, the number of the reset bolts 81 is four, the housing 9 is provided with four counter bores, the structures of the reset bolts 81 and the hold-down bolts 5 are the same, the stud section of the reset bolt 81 passes through the elastic reset piece 82 and the counter bores and extends into the housing 9, and the thread section is in threaded connection with the upper end of the cam seat 42. When cam 41 is in the first state, elastic return member 82 is in a compressed state and is inactive; when the cam 41 is in the second state, the elastic reset piece 82 which is originally in the compression state always has a force moving towards the direction far away from the cam seat 42 under the action of the elastic pressing piece 6, the cam seat 42 receives a force moving towards the direction far away from the pressing block 3 again, then the pressing block 3 is driven to move towards the direction far away from the connecting platform 102 under the action of the pressing bolt 5 and the elastic pressing piece 6, so that the distance between the pressing block 3 and the connecting platform 102 is increased, and the forming platform 100 is easy to take out.

In the present embodiment, the elastic pressing member 6 and the elastic restoring member 82 are both springs.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A fixing device of a forming platform is characterized by comprising:

the device comprises a fixing plate (1), a locking mechanism and a supporting plate (2), wherein one end of the fixing plate (1) is connected with the supporting plate (2), the locking mechanism is positioned above the supporting plate (2), a connecting piece (101) is arranged on a forming platform (100), a connecting platform (102) is arranged on the connecting piece (101), and the connecting platform (102) is positioned between the locking mechanism and the supporting plate (2);

the locking mechanism comprises a pressing block (3), a rotating assembly (4), a pressing bolt (5) and an elastic pressing piece (6), wherein the pressing bolt (5) penetrates through the pressing block (3), the elastic pressing piece (6) is connected with the rotating assembly (4), and under the action of the rotating assembly (4), the elastic pressing piece (6) is compressed, so that the pressing block (3) abuts against the connecting platform (102) on the supporting plate (2).

2. The fixing device of the forming platform according to claim 1, characterized in that the rotating assembly (4) comprises two cams (41), two cam seats (42) and a rotating shaft (43) connecting the two cams (41), the rotating shaft (43) drives the cams (41) to rotate in the cam seats (42), the cam seats (42) are located above the pressing block (3), the elastic pressing piece (6) is located between the cam seats (42) and the pressing block (3), and the pressing bolt (5) penetrates through the pressing block (3), and the elastic pressing piece (6) is in threaded connection with the cam seats (42).

3. The fixing device of the forming platform according to claim 2, characterized in that a supporting column (11) is arranged on the fixing plate (1), the supporting column (11) is arranged between the two cams (41), and the rotating shaft (43) is rotatably connected with the supporting column (11).

4. The fixing device of the forming platform according to claim 3, characterized in that two supporting columns (11) are provided, and a first through hole (111) is provided on each of the two supporting columns (11); the rotating shaft (43) penetrates through the first through hole (111) and is respectively connected with the two cams (41).

5. The fixing device of the forming platform according to claim 4, characterized in that the locking mechanism further comprises a pivot handle (7), the pivot handle (7) is fixedly connected with the pivot (43) and is located between the two supporting columns (11), and the pivot (43) is driven to rotate by pressing the pivot handle (7).

6. The fixing device of the forming platform according to claim 2, characterized in that the locking mechanism further comprises a reset component (8), and the reset component (8) is arranged on one side of the cam seat (42) far away from the elastic pressing piece (6) and can drive the cam seat (42) to move towards the direction far away from the pressing block (3).

7. The forming table fixture according to claim 6, characterized in that the reset assembly (8) comprises a reset bolt (81) and an elastic reset piece (82), the reset bolt (81) is threaded with the cam seat (42) through the elastic reset piece (82).

8. The fixing device of the forming platform according to any one of claims 1 to 7, characterized in that the locking mechanism further comprises a housing (9), the housing (9) is connected with the fixing plate (1), a placing groove (91) is arranged on the housing (9), and the rotating shaft handle (7) is arranged in the placing groove (91).

9. A photocuring 3D printer comprising a lifting mechanism and a forming platform (100), the lifting mechanism driving the forming platform (100) to move up and down, characterized in that the forming platform (100) is fixed on the lifting mechanism by a fixing device of the forming platform according to any one of claims 1 to 8, and a fixing plate (1) is fixedly connected with the lifting mechanism.

10. The photocuring 3D printer of claim 9, wherein the molding platform (100) is provided with connecting pieces (101) at both ends, and the detachable handles (103) are arranged on the sides of the connecting pieces (101) far away from each other.