CN216859494U

CN216859494U - 3D prints and uses anchor clamps

Info

Publication number: CN216859494U
Application number: CN202220327122.1U
Authority: CN
Inventors: 严峻; 耿亮; 拓雷锋
Original assignee: Shaanxi Junyi 3d Additive Technology Co ltd
Current assignee: Shaanxi Junyi 3d Additive Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-01
Anticipated expiration: 2032-02-18

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a 3D printing clamp which comprises a printer frame and a workbench, wherein the workbench is fixedly arranged on the outer surface of the printer frame, the upper surface of the printer frame is provided with a positioning device, the positioning device comprises a positioning pin, and the positioning pin is used for positioning a printed blank. This 3D prints and uses anchor clamps, through setting up positioner and clamping device, can carry out stable centre gripping fixed to the metalwork, can be to both sides be that the metalwork of opposite sex face fixes through the locating pin, fixed clamping jaw can carry out the centre gripping to the front and back of metalwork under the removal of slide, the rubber pad on the fixed clamping jaw has elasticity, can increase the area with the metalwork contact can not cause the injury to the metalwork surface simultaneously, through the fixing to four faces of metalwork, thereby realize the centre gripping that stabilizes the metalwork, prevent that the metalwork from appearing rocking printing the in-process, the influence prints the precision.

Description

3D prints and uses anchor clamps

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a clamp for 3D printing.

Background

3D printing is a technique for building objects by layer-by-layer printing using bondable materials such as powdered metals or plastics based on digital model files.

The in-process that current metal 3D printed needs to press from both sides the metalwork and tightly in order to ensure to print the precision, but the anchor clamps that generally use can't be stable when to dysmorphism centre gripping carry out the centre gripping, have the gap between anchor clamps and the metalwork, lead to anchor clamps to press from both sides not tightly and influence the printing, and the anchor clamps only centre gripping the two sides of metalwork simultaneously can't carry out stable centre gripping to large-scale metalwork, and the metalwork appears rocking, influences the printing precision.

SUMMERY OF THE UTILITY MODEL

The utility model provides a 3D printing clamp based on the technical problems that a gap exists between the existing clamp used for 3D printing and a metal piece, only two surfaces of the metal piece are clamped, so that the clamp cannot be clamped tightly to influence printing, the metal piece shakes, and printing precision is influenced.

The utility model provides a 3D printing fixture, which comprises a printer frame and a workbench, wherein the workbench is fixedly arranged on the outer surface of the printer frame, the upper surface of the printer frame is provided with a positioning device, the positioning device comprises a positioning pin, and the positioning pin is used for positioning a printed blank;

the upper surface of printer frame is provided with clamping device, clamping device is including fixed clamping jaw, fixed clamping jaw carries out centre gripping work to the blank of printing.

Preferably, lifting groove bodies are fixedly mounted on two sides of the printer frame, a lead screw is fixedly mounted on the inner wall of each lifting groove body through a bearing, a driving cavity is formed in the lower end of the printer frame, a double-shaft motor is fixedly mounted on the inner bottom wall of the driving cavity, one end of the lead screw penetrates through the inner top wall of the driving cavity and then extends into the driving cavity, and output shafts at two ends of the double-shaft motor rotate with one end of the lead screw through bevel gear sets;

through the technical scheme, the bevel gears on the output shafts at the two ends of the double-shaft motor drive the bevel gears at the lower ends of the screw rods to rotate, so that the screw rods at the two sides are driven to synchronously rotate.

Preferably, the positioning device further comprises an adjusting hydraulic cylinder, one end of the adjusting hydraulic cylinder is in threaded connection with the outer surface of the screw rod through a sliding block, and a support frame is fixedly mounted at one end of a piston rod of the adjusting hydraulic cylinder;

through above-mentioned technical scheme, adjust the distance that the support frame can be adjusted apart from the blank to the pneumatic cylinder, be convenient for carry out centre gripping work to the metal blank of equidimension not.

Preferably, a positioning groove body is fixedly installed on the outer side surface of the support frame, balls are connected to the inner wall of the positioning groove body in a sliding mode, springs are fixedly connected to the opposite surfaces of the balls, the outer surfaces of the balls at the two ends of the positioning groove body are fixedly installed at one ends of the two positioning pins, and the outer surfaces of the positioning pins are in sliding insertion connection with the inner wall of the positioning groove body;

through above-mentioned technical scheme, the one end through the locating pin contacts with the blank of printing, the locating pin that contacts the convex surface of blank earlier can extrude the ball of fixed mounting with it, the ball passes through the spring and transmits to next ball to the extrusion force, the ball can be at the internal removal of constant head tank, extrude the concave surface contact of another locating pin and blank, thereby carry out the contact positioning to blank dysmorphism face, the locating pin comprises rubber materials, can not cause the injury to the surface of blank, the spring resets the locating pin, it can carry on spacingly to the locating pin to be curved inner wall in the constant head tank.

Preferably, the clamping device further comprises a limiting rod, two ends of the limiting rod are fixedly installed on two sides of the inner surface of the support frame, the fixed clamping jaws are inserted at two ends of the limiting rod in a sliding mode, and the outer surfaces of the fixed clamping jaws are inserted in the inner surface of the support frame in a sliding mode;

through above-mentioned technical scheme, carry out the centre gripping through fixed clamping jaw to the surface of blank fixed, fixed clamping jaw comprises clamping jaw and rubber pad, and the rubber pad is fixed to be bonded at the surface of clamping jaw, prevents to cause the injury to the blank.

Preferably, a pushing hydraulic cylinder is fixedly mounted on the outer surface of one end of the supporting frame, a sliding plate is fixedly mounted at one end of a piston rod of the pushing hydraulic cylinder after penetrating through the upper surface of one end of the supporting frame, a chute is formed in the outer surface of the sliding plate, and one end of the fixed clamping jaw is in sliding insertion connection with the inner wall of the chute through a connecting rod;

through above-mentioned technical scheme, through the lift of slide, can drive the fixed clamping jaw of both sides and carry out relative or opposite removal to the realization is fixed the blank of equidimension not, moves to both sides when not using, does not influence and prints.

The beneficial effects of the utility model are as follows:

through setting up positioner and clamping device, can carry out stable centre gripping fixed to the metalwork, can be to both sides be that the metalwork of opposite sex face fixes through the locating pin, fixed clamping jaw can carry out the centre gripping to the front and back of metalwork under the removal of slide, the rubber pad on the fixed clamping jaw has elasticity, can increase the area with the metalwork contact can not cause the injury to the metalwork surface simultaneously, through the fixed to four faces of metalwork, thereby realize the centre gripping that stabilizes the metalwork, prevent that the metalwork from appearing rocking printing the in-process, the influence prints the precision, it has the gap to have solved between current 3D prints anchor clamps and the metalwork that use, only centre gripping two faces of metalwork, lead to the anchor clamps to press from both sides not tightly and influence the printing, the metalwork body appears rocking, influence and print precision technical problem.

Drawings

Fig. 1 is a schematic view of a 3D printing jig according to the present invention;

fig. 2 is a perspective view of a screw rod structure of a 3D printing clamp according to the present invention;

fig. 3 is a perspective view of a positioning pin structure of a 3D printing jig according to the present invention;

fig. 4 is a perspective view of a ball structure of a 3D printing jig according to the present invention;

fig. 5 is a perspective view of a sliding plate structure of a 3D printing jig according to the present invention;

fig. 6 is a perspective view of a pushing hydraulic cylinder structure of a 3D printing clamp according to the present invention.

In the figure: 1. a printer frame; 11. a work table; 2. a lifting trough body; 21. a screw rod; 22. a drive chamber; 23. a double-shaft motor; 3. adjusting a hydraulic cylinder; 31. a support frame; 32. a positioning groove body; 33. a ball bearing; 34. a spring; 35. positioning pins; 4. a limiting rod; 41. a fixed clamping jaw; 42. pushing the hydraulic cylinder; 43. a slide plate; 44. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, a 3D printing fixture includes a printer frame 1 and a workbench 11, the workbench 11 is fixedly mounted on the outer surface of the printer frame 1, a positioning device is disposed on the upper surface of the printer frame 1, the positioning device includes a positioning pin 35, and the positioning pin 35 performs positioning work on a printed blank;

furthermore, the two sides of the printer frame 1 are both fixedly provided with a lifting groove body 2, the inner wall of the lifting groove body 2 is fixedly provided with a screw rod 21 through a bearing, the lower end of the printer frame 1 is internally provided with a driving cavity 22, the inner bottom wall of the driving cavity 22 is fixedly provided with a double-shaft motor 23, one end of the screw rod 21 penetrates through the inner top wall of the driving cavity 22 and then extends into the driving cavity 22, and output shafts at two ends of the double-shaft motor 23 rotate with one end of the screw rod 21 through a bevel gear set;

bevel gears on output shafts at two ends of the double-shaft motor 23 drive bevel gears at the lower ends of the screw rods 21 to rotate, so that the screw rods 21 at two sides are driven to synchronously rotate.

Furthermore, the positioning device also comprises an adjusting hydraulic cylinder 3, one end of the adjusting hydraulic cylinder 3 is in threaded connection with the outer surface of the screw rod 21 through a sliding block, and one end of a piston rod of the adjusting hydraulic cylinder 3 is fixedly provided with a support frame 31;

the distance between the support frame 31 and the blank can be adjusted by adjusting the hydraulic cylinder 3, so that the metal blanks with different sizes can be clamped conveniently.

Furthermore, a positioning groove body 32 is fixedly installed on the outer side surface of the support frame 31, balls 33 are connected to the inner wall of the positioning groove body 32 in a sliding manner, springs 34 are fixedly connected to the opposite surfaces of the balls 33, the outer surfaces of the balls 33 at the two ends are fixedly installed with one end of each of two positioning pins 35, and the outer surfaces of the positioning pins 35 are in sliding insertion connection with the inner wall of the positioning groove body 32;

one end through locating pin 35 and the blank contact of printing, the convex locating pin 35 of contact blank earlier can extrude ball 33 with its fixed mounting, ball 33 passes through spring 34 and transmits to next ball 33 to the extrusion force, ball 33 can move in location cell body 32, extrude the concave surface contact of another locating pin 35 and blank, thereby carry out the contact positioning to blank dysmorphism face, locating pin 35 comprises rubber materials, can not cause the injury to the surface of blank, spring 34 resets locating pin 35, it can carry out spacingly to locating pin 35 to be curved inner wall in the location cell body 32.

The upper surface of the printer frame 1 is provided with a clamping device, the clamping device comprises a fixed clamping jaw 41, and the fixed clamping jaw 41 is used for clamping a printed blank;

furthermore, the clamping device also comprises a limiting rod 4, two ends of the limiting rod 4 are fixedly installed with two sides of the inner surface of the support frame 31, the fixed clamping jaws 41 are inserted at two ends of the limiting rod 4 in a sliding mode, and the outer surfaces of the fixed clamping jaws 41 are inserted with the inner surface of the support frame 31 in a sliding mode;

the outer surface of the blank is clamped and fixed through the fixed clamping jaw 41, the fixed clamping jaw 41 is composed of a clamping jaw and a rubber pad, and the rubber pad is fixedly adhered to the outer surface of the clamping jaw to prevent the blank from being damaged.

Furthermore, a pushing hydraulic cylinder 42 is fixedly mounted on the outer surface of one end of the supporting frame 31, a sliding plate 43 is fixedly mounted at one end of a piston rod of the pushing hydraulic cylinder 42 after penetrating through the upper surface of one end of the supporting frame 31, a chute 44 is formed in the outer surface of the sliding plate 43, and one end of the fixed clamping jaw 41 is in sliding insertion connection with the inner wall of the chute 44 through a connecting rod;

through the lift of slide 43, can drive the fixed clamping jaw 41 of both sides and carry out relative or opposite removal to the realization is fixed the blank of equidimension not, moves to both sides when not using, does not influence and prints.

Through setting up positioner and clamping device, can carry out stable centre gripping fixed to the metalwork, can be to both sides through locating pin 35 that the metalwork of opposite sex face is fixed, fixed clamping jaw 41 can carry out the centre gripping to the front and back of metalwork under the removal of slide 43, the rubber pad on the fixed clamping jaw 41 has elasticity, can increase the area with the metalwork contact can not cause the injury to the metalwork surface simultaneously, through the fixed to four faces of metalwork, thereby realize the centre gripping that stabilizes the metalwork, prevent that the metalwork from appearing rocking printing the in-process, influence and print the precision, it has the gap to have solved between current 3D prints anchor clamps and the metalwork that use, only centre gripping two faces of metalwork, lead to the anchor clamps to press from both sides not tightly and influence and print, the metalwork body appears rocking, influence and print precision technical problem.

The working principle is as follows: according to the height of the metal piece to be clamped, the double-shaft motor 23 in the driving cavity 22 is controlled to start, the screw rod 21 in the lifting groove body 2 rotates through the transmission of the bevel gear set, after the height of the hydraulic cylinder 3 is adjusted and regulated through the slide block, after the adjusting hydraulic cylinder 3 pushes the support frame 31 to approach the metal piece blank on the worktable 11, after the positioning pin 35 on the positioning groove body 32 contacts the outer surface of the metal piece, when the outer surface of the metal piece is in an irregular shape, the positioning pin 35 on one side firstly contacts with the convex surface and then extrudes the ball 33 in the positioning groove body 32, the ball 33 transmits extrusion force through the spring 34, so that the positioning pin 35 on the other side moves outwards to contact with the outer surface of the metal piece, when the outer side surface of the metal piece is a plane, the two positioning pins 35 are simultaneously contacted with the outer side surface of the metal piece to extrude the internal ball 33, so that the ball 33 absorbs the extrusion force through the compression spring 34;

the pushing hydraulic cylinder 42 of the supporting frame 31 pushes the sliding block to move downwards, and the connecting rod on the fixed clamping jaw 41 moves in the chute 44 along the track of the chute 44 to drive the fixed clamping jaw 41 to move relatively on the limiting rod 4, so that the front and rear surfaces of the metal piece on the workbench 11 are clamped and fixed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a 3D prints and uses anchor clamps, includes printer frame (1) and workstation (11), workstation (11) fixed mounting be in the surface of printer frame (1), its characterized in that: the upper surface of the printer frame (1) is provided with a positioning device, the positioning device comprises a positioning pin (35), and the positioning pin (35) is used for positioning a printed blank;

the upper surface of printer frame (1) is provided with clamping device, clamping device is including fixed clamping jaw (41), fixed clamping jaw (41) carry out centre gripping work to the blank of printing.

2. The jig for 3D printing according to claim 1, characterized in that: the equal fixed mounting in both sides of printer frame (1) has lift cell body (2), the inner wall of lift cell body (2) has lead screw (21) through bearing fixed mounting, drive chamber (22) have been seted up to the lower extreme of printer frame (1) inside, the interior diapire fixed mounting in drive chamber (22) has double-shaft motor (23), the one end of lead screw (21) is run through extend to inside behind the interior roof in drive chamber (22), the both ends output shaft of double-shaft motor (23) through the bevel gear group with the one end of lead screw (21) is rotated.

3. The jig for 3D printing according to claim 2, characterized in that: the positioning device further comprises an adjusting hydraulic cylinder (3), one end of the adjusting hydraulic cylinder (3) is in threaded connection with the outer surface of the screw rod (21) through a sliding block, and a support frame (31) is fixedly mounted at one end of a piston rod of the adjusting hydraulic cylinder (3).

4. The jig for 3D printing according to claim 3, characterized in that: the lateral surface fixed mounting of support frame (31) has location cell body (32), the inner wall sliding connection of location cell body (32) has ball (33), and is a plurality of the equal fixedly connected with spring (34) of opposite face of ball (33), both ends the surface and two of ball (33) the one end fixed mounting of locating pin (35), the surface of locating pin (35) with the inner wall of location cell body (32) slides and pegs graft.

5. The jig for 3D printing according to claim 3, characterized in that: the clamping device further comprises a limiting rod (4), two ends of the limiting rod (4) are fixedly mounted on two sides of the inner surface of the support frame (31), the fixing clamping jaws (41) are inserted at two ends of the limiting rod (4) in a sliding mode, and the outer surfaces of the fixing clamping jaws (41) are inserted in the inner surface of the support frame (31) in a sliding mode.

6. The jig for 3D printing according to claim 3, characterized in that: the one end surface fixed mounting of support frame (31) has promotion pneumatic cylinder (42), the piston rod one end that promotes pneumatic cylinder (42) runs through fixed mounting has slide (43) behind the one end upper surface of support frame (31), chute (44) have been seted up to the surface of slide (43), the one end of fixed clamping jaw (41) pass through the connecting rod with the inner wall of chute (44) slides and pegs graft.