Electrolytic drilling device for 3D printing metal part

Abstract

The invention relates to the technical field of electrolytic machine tools, and discloses a 3D printing metal part electrolytic drilling device which comprises a machine tool base, a workbench used for placing a 3D printing metal plate is hinged to the machine tool base, and meanwhile, a first power mechanism for driving the workbench to rotate is installed on the machine tool base; a vertical supporting plate is fixed to the machine tool base and located at the hinged end of the workbench and the machine tool base, meanwhile, a second power mechanism is installed on the supporting plate, and the second power mechanism is in transmission connection with the electrolytic drill bit. Two mounting frames are fixedly arranged on the workbench, the two mounting frames and the supporting plate are located on the same side of the workbench, and the supporting plate is located between the two mounting frames; and a third power mechanism is mounted on each mounting frame, and each third power mechanism is in transmission connection with one pressing and positioning integrated mechanism. According to the drilling device, it can be effectively guaranteed that the 3D printing metal plate is centered, the positioning precision is guaranteed, and the drilling quality of the 3D printing metal plate is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic machine tools, and in particular to a 3D printed metal part electrolytic drilling device. Background Art

[0002] 3D printed metal parts is a technology that uses metal powder or metal wire to manufacture three-dimensional metal parts by stacking layer by layer. This technology has high precision, flexibility and a wide range of applications. In the process of drilling holes in 3D printed metal parts, electrolytic machine tools or electric spark drilling machines are generally used. Electrolytic drilling is a processing technology that uses electrochemical reactions to remove materials and form holes. It is widely used in high-difficulty processing fields. The electric spark drilling machine uses the principle of discharge sparking to generate high-temperature corroded metal between the tool electrode and the workpiece through pulsed current, thereby achieving perforation. Its working process includes multiple discharges, and each discharge will form tiny pits on the surface of the workpiece, which gradually accumulate to form complete holes.

[0003] The invention discloses a steel plate drilling machine with a movable drilling position, which comprises a fixing device and a drilling device arranged on one side of the fixing device, wherein the fixing device comprises an operating panel, one end of the operating panel is fixedly connected with a stopper, a rotating structure is arranged at the bottom of the operating panel, the rotating structure is used to drive the operating panel to rotate, and positioning structures are arranged on both sides of the operating panel, the positioning structures are used to fix the steel plate on the operating panel and adjust the position of the steel plate, the positioning structure comprises a plurality of fixing frames, the plurality of fixing frames are fixedly arranged at the two sides of the bottom of the operating panel, the bottom end of the fixing frame is hinged with a positioning rod, one side of two fixing frames is fixedly provided with a positioning motor, a synchronous shaft is arranged between the positioning rods at one side, the synchronous shaft is fixedly connected with the positioning rod, and the output shaft of the positioning motor rotates synchronously with the positioning rod; the positioning structure also comprises a plurality of correction members, the plurality of correction members and the plurality of positioning rods are arranged one by one, the correction member and the positioning rod are slidably connected, a correction spring is fixedly connected with one side of the correction member, and the correction spring is used to provide a thrust to the correction member.

[0004] Based on the above technical features, the problem that arises is that in the prior art, the metal plate placed on the drilling machine tool needs to be clamped and fixed by means of several fixing frames of the positioning mechanism and corrective parts on the fixing frames. During this process, since the head end of the fixing frame easily contacts the metal plate before the metal plate, the metal plate cannot be effectively centered and the positioning accuracy is poor.

[0005] Therefore, it is necessary to solve the above problems through a 3D printed metal part electrolytic drilling device. Summary of the invention

[0006] The purpose of the present invention is to provide a 3D printed metal part electrolytic drilling device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a 3D printed metal part electrolytic drilling device, comprising a machine tool base, a workbench for placing 3D printed metal sheet parts is hinged on the machine tool base, and a first power mechanism for driving the workbench to rotate is installed on the machine tool base; a vertical support plate is fixed on the machine tool base, and the support plate is located at the hinged end of the workbench and the machine tool base, and a second power mechanism is installed on the support plate, and the second power mechanism is connected to the electrolytic drill bit in a transmission manner; two mounting frames are fixedly arranged on the workbench, and the two mounting frames and the support plate are located on the same side of the workbench, and the support plate is located between the two mounting frames; a third power mechanism is installed on each mounting frame, and each third power mechanism is connected to a downward pressure positioning integrated mechanism in a transmission manner.

[0008] Preferably, the third power mechanism includes a fifth motor, which is fixed on the mounting frame; the output shaft of the fifth motor is fixedly connected to an eccentrically arranged turntable, and a rotating drum is rotatably mounted on the turntable; a limit push rod is arranged between the rotating drum and the mounting frame, one end of the limit push rod is hinged to the mounting frame, and the other end is hinged to the rotating drum; the downward pressing and positioning integrated mechanism is transmission-connected to the rotating drum to drive the downward pressing and positioning integrated mechanism to press down the 3D printed metal sheet; a transmission member is installed in the rotating drum, and the transmission member cooperates with the downward pressing and positioning integrated mechanism to drive the downward pressing and positioning integrated mechanism to clamp and position the 3D printed metal sheet.

[0009] Preferably, the integrated downward-pressing positioning mechanism comprises a cylindrical pressure block, which is coaxially connected to the rotating drum and cooperates with the transmission member in transmission; a fixed block is fixed on the outer circumferential curved surface of the pressure block, and an arc-shaped push rod arranged along the circumference of the pressure block is slidably installed on the upper limit position of the fixed block; the arc-shaped push rod passes through the fixed block, and a stop block is fixedly arranged on the rod body at the head end of the arc-shaped push rod along the rotation direction of the pressure block, and a limit cap is fixedly arranged on the rod body at the tail end of the arc-shaped push rod along the rotation direction of the pressure block; a spring is sleeved on the arc-shaped push rod, and the spring is located between the fixed block and the limit cap and fixedly connects the fixed block and the limit cap.

[0010] Preferably, the transmission member includes a first bevel gear, a second bevel gear and a third bevel gear; the first bevel gear is coaxially fixed on the turntable, the third bevel gear is coaxially fixed in the pressing block, and the second bevel gear is rotatably installed in the rotating drum; the second bevel gear is located between the first bevel gear and the third bevel gear, and the first bevel gear and the third bevel gear are both meshed with the second bevel gear.

[0011] Preferably, the first power mechanism includes two vertical support rods, both of which are fixedly connected to the machine tool base, and the worktable rotates between the two support rods; a transmission shaft parallel to the rotation axis of the worktable is horizontally placed between the two support rods, and connecting blocks are fixedly provided at both axial ends of the transmission shaft; the two support rods correspond to the two connecting blocks one by one, and each support rod is provided with a limiting groove in the vertical direction for limiting sliding cooperation with the corresponding connecting block; a clearance through hole is provided on the worktable in a direction parallel to the rotation axis of the worktable, and the transmission shaft passes through the clearance through hole and is in abutment with the worktable for transmission cooperation.

[0012] Preferably, a third threaded rod is vertically arranged in the limiting groove of the support rod, and the third threaded rod is threadedly connected to the support rod; the third threaded rod passes through the connecting block in the limiting groove and is threadedly connected to the connecting block; the fourth motor is fixedly installed on the support rod, and the output shaft of the fourth motor is coaxially fixedly connected to the third threaded rod.

[0013] Preferably, the second power mechanism includes a first transverse plate arranged along the width direction of the workbench and a second transverse plate arranged along the length direction of the workbench; the first transverse plate is fixedly connected to the support plate, and a first guide groove with a notch facing downward is provided at the bottom of the first transverse plate along the width direction of the workbench, and a first guide block is installed in the first guide groove for limited sliding; the second transverse plate is fixed to the bottom of the first guide block; a second guide groove with a notch facing downward is provided at the bottom of the second transverse plate along the length direction of the workbench, and a second guide block is installed in the second guide groove for limited sliding; a mounting seat is fixedly provided at the bottom of the second guide block, and an electric push rod is fixedly installed at the bottom of the mounting seat, and the telescopic shaft of the electric push rod is vertically downward and fixedly connected to the electrolytic drill bit.

[0014] Preferably, the electrolytic drill bit includes a power supply unit, a drilling wire, a guide shaft and a drive unit; the telescopic shaft of the electric push rod is fixedly connected to the equipment box, and the power supply unit and the drive unit are both installed in the equipment box; wherein the drive unit includes a third motor, the third motor is fixedly connected to the equipment box, and the guide shaft vertically passes through the equipment box downward and is rotationally connected to the equipment box; a first gear is fixedly sleeved on the output shaft of the third motor, and a second gear is fixedly sleeved on the top end of the guide shaft, and the first gear is meshed with the second gear; the drilling wire is electrically connected to the power supply unit, and at the same time vertically slides coaxially downward through the guide shaft.

[0015] Preferably, a first threaded rod is horizontally placed in the first guide groove along the width direction of the workbench, and the first threaded rod is rotatably connected to the first cross plate; the first threaded rod passes through the first guide block and is threadedly connected to the first guide block; a first motor is fixedly installed on the first cross plate, and the output shaft of the first motor is coaxially fixedly connected to the first threaded rod; a second threaded rod is horizontally placed in the second guide groove along the length direction of the workbench, and the second threaded rod is rotatably connected to the second cross plate; the second threaded rod passes through the second guide block and is threadedly connected to the second guide block; a second motor is fixedly installed on the second cross plate, and the output shaft of the second motor is coaxially fixedly connected to the second threaded rod.

[0016] Preferably, two symmetrically arranged supporting legs are fixed on the machine tool base, and two hinged seats are fixed on the workbench. The two hinged seats correspond to the two supporting legs one by one, and the top end of each supporting leg is hinged to the corresponding hinged seat.

[0017] Technical effects and advantages of the present invention:

[0018] First, when the integrated downward-pressing and positioning mechanism of the present invention positions and fixes the 3D-printed metal sheet, the positioning block first contacts and positions the 3D-printed metal sheet, and then the 3D-printed metal sheet is pressed down and fixed under the downward pressure of the pressing block. During this process, the support plate limits the position of the 3D-printed metal sheet, which can effectively ensure that the 3D-printed metal sheet is centered, ensure positioning accuracy, and improve the drilling quality of the 3D-printed metal sheet.

[0019] Second, the workbench of the present invention can rotate in the vertical direction, and the suspended movable end can swing up and down. When swinging up, it can receive materials, and when swinging down, it can automatically unload materials. It has a simple structure and a high degree of automation.

[0020] Third, after the two pressing blocks of the present invention press the 3D printed metal sheet, since they are always subjected to a torsional torque, the two pressing blocks always have a static friction force in the horizontal direction on the 3D printed metal sheet, that is, a pre-tightening force toward the inner side of the 3D printed metal sheet. Therefore, when the 3D printed metal sheet is punched, the stability of the 3D printed metal sheet can be always maintained to prevent the hole from being punched off-center. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a three-dimensional rear view schematic diagram of the present invention;

[0023] Figure 3 is a schematic diagram of the second power mechanism of the present invention;

[0024] Figure 4It is a partial schematic diagram of the second power mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the electrolytic drill bit of the present invention;

[0026] Figure 6 This is a schematic diagram of the interior of the equipment box of the present invention;

[0027] Figure 7 It is a schematic diagram of the first power mechanism of the present invention;

[0028] Figure 8 It is a schematic diagram of a workbench of the present invention;

[0029] Fig. 9 It is a cross-sectional schematic diagram of the first power mechanism of the present invention;

[0030] Fig.10 This is a schematic diagram of the bottom hem of the workbench of the present invention;

[0031] Fig.11 This is a schematic diagram of the integrated downward pressing and positioning mechanism of the present invention;

[0032] Fig.12 is a schematic diagram of the third power mechanism of the present invention;

[0033] Fig.13 It is a schematic diagram of the transmission member of the present invention;

[0034] Fig.14 This is a schematic diagram of the interior of the compact of the present invention;

[0035] Fig.15 It is a schematic diagram of the interior of the drum of the present invention.

[0036] In the figure: 1, machine tool base; 2, support plate; 3, first motor; 4, first horizontal plate; 5, first threaded rod; 6, second horizontal plate; 7, second motor; 8, second threaded rod; 9, mounting base; 10, electric push rod; 11, equipment box; 12, third motor; 13, first gear; 14, second gear; 15, guide shaft; 16, protective cover; 17, drilling wire; 18, through hole; 19, support leg; 20, support rod; 21, fourth motor; 22, third threaded rod; 23, connecting block ; 24. Drive shaft; 25. Workbench; 26. Clearance perforation; 27. 3D printed metal sheet; 28. Articulated seat; 29. ​​Mounting bracket; 30. Fifth motor; 31. Rotating shaft; 32. Turntable; 33. Rotating drum; 34. Limit push rod; 35. First bevel gear; 36. Second bevel gear; 37. Third bevel gear; 38. Connecting ring; 39. Pressing block; 40. Fixed block; 41. Arc push rod; 42. Spring; 43. Limiting cap; 44. Abutment block; 45. Ring groove; 46. Fixed shaft. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] The present invention provides Figures 1 to 15 A 3D printed metal part electrolytic drilling device is shown, comprising a machine tool base 1. In this embodiment, the machine tool base 1 refers to the base of an electric spark drilling machine.

[0039] The machine tool base 1 is a square base, and two vertical support legs 19 are welded and fixed on the top rear side of the machine tool base 1, and a workbench 25 is installed above the machine tool base 1. A 3D printed metal plate 27 is placed above the workbench 25. Two hinge seats 28 are welded and fixed at the bottom of the rear end of the workbench 25, and the two hinge seats 28 correspond to the two support legs 19 one by one. The two support legs 19 are symmetrically arranged, one on the left and one on the right, and the top of each support leg 19 is hinged to the corresponding hinge seat 28.

[0040] A first driving mechanism is installed on the top front side of the machine tool base 1, and the first driving mechanism is connected to the workbench 25 in a transmission manner to drive the workbench 25 to swing up and down. The first driving mechanism includes two support rods 20, and the two support rods 20 are symmetrically arranged one on the left and one on the right. The front end of the workbench 25, that is, the suspended movable end of the workbench 25, is rotatably arranged between the two support rods 20.

[0041] A transmission shaft 24 is placed horizontally between the two support rods 20, and a connecting block 23 is fixedly connected to the left and right axial ends of the transmission shaft 24. A limiting slide groove is provided on the opposite sides of the two support rods 20 in the vertical direction, and the notches of the two limiting slide grooves are horizontally opposed. The two connecting blocks 23 correspond to the two limiting slide grooves one by one, and each connecting block 23 is located in the corresponding limiting slide groove and is in limited sliding cooperation with the corresponding limiting slide groove.

[0042] The front end of the workbench 25 is provided with a clearance hole 26 in the horizontal direction, the clearance hole 26 is a waist-shaped groove, and the transmission shaft 24 passes through the clearance hole 26 and is limitedly slidably matched with the clearance hole 26. The transmission shaft 24 is in contact with the workbench 25 for transmission, so as to drive the workbench 25 to swing up and down.

[0043] A third threaded rod 22 is vertically arranged in each limiting sliding groove, and each third threaded rod 22 is rotatably connected to the support rod 20 where it is located. At the same time, each third threaded rod 22 passes through the connecting block 23 in the limiting sliding groove where it is located and is threadedly connected to the connecting block 23 .

[0044] A fourth motor 21 is fixedly mounted on the top of each support rod 20 , and each fourth motor 21 is coaxially fixedly connected to the third threaded rod 22 in the support rod 20 .

[0045] When the workbench 25 swings to a horizontal state, the length direction of the workbench 25 is in the same direction as the horizontal direction, and the width direction of the workbench 25 is in the same direction as the front-rear horizontal direction. When the workbench 25 rotates, the rotation center line is along the horizontal direction. The clearance hole 26 is opened along the width direction of the workbench 25.

[0046] A vertical support plate 2 is welded and fixed to the top rear side of the machine tool base 1. A second power mechanism is installed on the top of the support plate 2, and the second power mechanism is transmission-connected to the electrolytic drill bit.

[0047] The second power mechanism includes a first transverse plate 4 arranged along the front-to-back horizontal direction and a second transverse plate 6 arranged along the left-to-right horizontal direction. The rear end of the first transverse plate 4 is fixedly connected to the top of the support plate 2, and the bottom of the first transverse plate 4 is provided with a first guide groove with a notch facing downward along the front-to-back horizontal direction, and a first guide block is installed in the first guide groove for limited sliding. The second transverse plate 6 is fixed to the bottom of the first guide block, and the bottom of the second transverse plate 6 is provided with a second guide groove with a notch facing downward along the left-to-right horizontal direction, and a second guide block is installed in the second guide groove for limited sliding. A mounting seat 9 is welded to the bottom of the second guide block, and an electric push rod 10 is fixedly installed at the bottom of the mounting seat 9, and the telescopic shaft of the electric push rod 10 is vertically downward, and the electrolytic drill bit is installed on the telescopic shaft of the electric push rod 10.

[0048] A first threaded rod 5 is horizontally placed in the first guide groove along the front-back horizontal direction, and the first threaded rod 5 is rotatably connected to the first transverse plate 4. The first threaded rod 5 passes through the first guide block in the first guide groove and is threadedly connected to the first guide block. The first motor 3 is fixedly installed on the first transverse plate 4, and the output shaft of the first motor 3 is coaxially fixedly connected to the first threaded rod 5.

[0049] A second threaded rod 8 is horizontally placed in the second guide groove along the left-right horizontal direction, and the second threaded rod 8 is rotatably connected to the second horizontal plate 6. The second threaded rod 8 passes through the second guide block in the second guide groove and is threadedly connected to the second guide block. A second motor 7 is fixedly installed on the second horizontal plate 6, and the output shaft of the second motor 7 is coaxially fixedly connected to the second threaded rod 8.

[0050] In this embodiment, the electrolytic drill bit is an electric spark drill bit, which belongs to the prior art. The following is a brief description of the prior art. The electrolytic drill bit includes a power supply unit, a drilling wire 17, a guide shaft 15 and a drive unit. The telescopic shaft of the electric push rod 10 is fixedly connected to the equipment box 11, and the power supply unit and the drive unit are both installed in the equipment box 11.

[0051] The driving unit includes a third motor 12, which is fixedly connected to the equipment box 11, and a guide shaft 15 vertically passes through the equipment box 11 downward and is rotatably connected to the equipment box 11. A first gear 13 is fixedly sleeved on the output shaft of the third motor 12, and a second gear 14 is fixedly sleeved on the top of the guide shaft 15, and the first gear 13 is meshed with the second gear 14. The drilling wire 17 is electrically connected to the power supply unit, and a through hole 18 is axially provided in the guide shaft 15, and the drilling wire 17 is inserted into the through hole 18 and slides through the through hole 18. A protective sleeve 16 is welded and fixed at the bottom of the equipment box 11, and the protective sleeve 16 is sleeved on the guide shaft 15, and the guide shaft 15 and the protective sleeve 16 are rotatably matched.

[0052] Two mounting frames 29 are welded and fixed to the rear end of the workbench 25, and the two mounting frames 29 are symmetrically arranged one on the left and one on the right, and the support plate 2 is located between the two mounting frames 29. A third power mechanism is installed on each mounting frame 29, and each third power mechanism is transmission-connected to a downward positioning integrated mechanism.

[0053] Now, one of the third power mechanisms is described as an example, and the other is the same as the third power mechanism. The third power mechanism includes a fifth motor 30, which is fixed to the rear side of the mounting frame 29. The output shaft of the fifth motor 30 is horizontally forward and coaxially fixedly connected to the rotating shaft 31, which passes through the mounting frame 29 forward and is rotatably connected to the mounting frame 29.

[0054] The front end of the rotating shaft 31 is fixedly connected to an eccentrically arranged rotating disk 32, and the central axis of the rotating disk 32 is parallel to but not colinear with the central axis of the rotating shaft 31. A rotating drum 33 is rotatably sleeved on the rotating disk 32. A limit push rod 34 is arranged between the rotating drum 33 and the mounting frame 29, and the limit push rod 34 is an arc-shaped rod. One end of the limit push rod 34 is hinged to the mounting frame 29, and the other end is hinged to the rotating drum 33.

[0055] The pressing and positioning integrated mechanism is connected to the rotating drum 33 to drive the pressing and positioning integrated mechanism to press down the 3D printed metal plate 27. A transmission member is installed in the rotating drum 33, and the transmission member cooperates with the pressing and positioning integrated mechanism to drive the pressing and positioning integrated mechanism to clamp and position the 3D printed metal plate 27.

[0056] The integrated downward positioning mechanism includes a cylindrical pressing block 39, which is coaxially connected to the front end of the rotating drum 33 and is in transmission cooperation with the transmission member. A connecting ring 38 is coaxially fixed to the rear end of the pressing block 39, and the cross section of the connecting ring 38 along the axial direction is T-shaped. The front end of the rotating drum 33 is provided with an annular groove 45 with a notch facing forward, and the annular groove 45 matches the connecting ring 38. The connecting ring 38 is located in the annular groove 45 and is limitedly slidably matched with the annular groove 45.

[0057] A fixing block 40 is welded on the outer circumferential surface of the pressing block 39, and an arc-shaped push rod 41 arranged along the circumference of the pressing block 39 is slidably installed on the fixing block 40. The arc-shaped push rod 41 penetrates the fixing block 40, and a stop block 44 is fixedly arranged on the rod body at the head end of the arc-shaped push rod 41 along the rotation direction of the pressing block 39, and the stop block 44 is in abutment and limited cooperation with the 3D printed metal plate 27.

[0058] The arc push rod 41 is fixedly provided with a limit cap 43 on the rod body at the rear end along the rotation direction of the pressing block 39. A spring 42 is sleeved on the arc push rod 41, and the spring 42 is located between the fixing block 40 and the limit cap 43 and fixedly connects the fixing block 40 and the limit cap 43.

[0059] The transmission member includes a first bevel gear 35, a second bevel gear 36 and a third bevel gear 37. The first bevel gear 35 is coaxially fixed to the front side of the rotating disk 32, and the third bevel gear 37 is coaxially fixed in the pressing block 39. The second bevel gear 36 is rotatably installed in the rotating drum 33, and the installation method is as follows: a fixed shaft 46 is radially welded on the inner wall of the rotating drum 33, and the second bevel gear 36 is rotatably sleeved on the fixed shaft 46.

[0060] The second bevel gear 36 is located between the first bevel gear 35 and the third bevel gear 37 , and both the first bevel gear 35 and the third bevel gear 37 are meshed with the second bevel gear 36 .

[0061] Working principle: When the 3D printed metal plate 27 needs to be electrospark punched, the two fourth motors 21 are first started. The output shafts of the two fourth motors 21 drive the connected third threaded rods 22 to rotate. The two third threaded rods 22 push the matching connecting blocks 23 to slide upward, and the two connecting blocks 23 drive the transmission shaft 24 to move upward. The transmission shaft 24 pushes the workbench 25 to swing upward, and at this time, the transmission shaft 24 slides relative to the workbench 25 in the clearance perforation 26.

[0062] When the front end of the workbench 25 is swung up to be flush with the existing feeding mechanism, the 3D printed metal plate 27 is pushed onto the workbench 25 by the existing feeding mechanism. Thereafter, under the action of gravity, the 3D printed metal plate 27 slides down until it abuts against the support plate 2 and the two limit push rods 34.

[0063] Then, the two fifth motors 30 are started, and the output shafts of the two fifth motors 30 drive the connected rotating shafts 31 to rotate. The two rotating shafts 31 rotate in opposite directions and drive the connected rotating disks 32 to rotate. At this time, the rotating disk 32 drives the rotating drum 33 to rotate and approach the 3D printed metal plate 27, and the rotating drum 33 drives the pressing block 39 to rotate and approach the 3D printed metal plate 27.

[0064] During this process, due to the restriction of the limit push rod 34, the limit push rod 34 rotates under the push of the rotating drum 33. At the same time, the limit push rod 34 pushes the rotating drum 33 to reverse relative to the rotating disk 32. Then the rotating drum 33 drives the fixed shaft 46 to revolve around the central axis of the rotating disk 32, and the fixed shaft 46 drives the second bevel gear 36 to revolve around the central axis of the rotating disk 32. At this time, the first bevel gear 35 drives the second bevel gear 36 to rotate, the second bevel gear 36 drives the third bevel gear 37 to rotate, and the third bevel gear 37 drives the pressing block 39 to rotate, and the pressing block 39 reverses relative to the rotating drum 33.

[0065] At this time, the two pressing blocks 39 rotate in opposite directions, and at the same time drive the two fixed blocks 40 to rotate closer. The two fixed blocks 40 revolve around the central axis of the pressing blocks 39, and at the same time, the two fixed blocks 40 pull the limiting caps 43 to rotate synchronously through the springs 42. The two limiting caps 43 push the connected arc push rods 41 to rotate synchronously, and the two arc push rods 41 push the connected abutting blocks 44 to rotate synchronously. The two abutting blocks 44 rotate close to the 3D printed metal sheet 27. When the abutting block 44 on the left side abuts against the left side of the 3D printed metal sheet 27, and the abutting block 44 on the right side abuts against the right side of the 3D printed metal sheet 27, the 3D printed metal sheet 27 is located in the middle position of the workbench 25. In this process, the two abutting blocks 44 push the 3D printed metal sheet 27 to slide in the left and right horizontal directions.

[0066] Then, as the two fixed blocks 40 continue to revolve, the spring 42 is stretched, and the two abutting blocks 44 press against the 3D printed metal plate 27. When the two pressing blocks 39 press against the 3D printed metal plate 27, the two pressing blocks 39 stop rotating. At this time, the contact position between the 3D printed metal plate 27 and the two pressing blocks 39 is subjected to the static friction force of the two pressing blocks 39 along the tangential direction. The two static friction forces are directed toward the inner side of the 3D printed metal plate 27, so that two pre-tightening forces are always applied to the 3D printed metal plate 27 to maintain the stability of the 3D printed metal plate 27 during punching.

[0067] Then, the output shafts of the two fourth motors 21 reverse and drive the connected third threaded rods 22 to reverse, the two third threaded rods 22 push the matching connection blocks 23 to slide down, and the two connection blocks 23 drive the transmission shaft 24 to move down. The transmission shaft 24 pushes the workbench 25 down to a horizontal state. At this time, the rear end of the 3D printed metal plate 27 is tightly pressed under the two pressing blocks 39.

[0068] Then, the electric push rod 10, the first motor 3, and the second motor 7 are started, the position of the electric spark drill is adjusted, and the punching points of the 3D printed metal plate 27 are punched. The adjustment process is as follows: the output shaft of the first motor 3 drives the first threaded rod 5 to rotate, and the first threaded rod 5 pushes the first guide block to slide along the front and rear horizontal direction. Then the front and rear position of the electric spark drill is adjusted. The output shaft of the second motor 7 drives the second threaded rod 8 to rotate, and the second threaded rod 8 pushes the second guide block to slide along the left and right horizontal directions. Then the left and right position of the electric spark drill is adjusted. The telescopic shaft of the electric push rod 10 is telescoped in the vertical direction. Then the height of the electric spark drill is adjusted.

[0069] After the punching is completed, the output shafts of the two fourth motors 21 continue to reverse, and the front end of the workbench 25 swings down. When the front end of the workbench 25 swings down to be flush with the existing material receiving mechanism, the output shafts of the two fifth motors 30 reverse. At this time, the two pressing blocks 39 rotate away from the 3D printed metal plate 27, and at the same time, the two pressing blocks 39 drive the two abutting blocks 44 away from the 3D printed metal plate 27.

[0070] When the two stoppers 44 and the two pressing blocks 39 are out of contact with the 3D printed metal plate 27 , the 3D printed metal plate 27 slides from the workbench 25 to the material receiving mechanism under the action of gravity.

[0071] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 3D printed metal electrolytic drilling device, comprising a machine tool base (1), characterized in that: A workbench (25) for placing a 3D printed metal plate (27) is hingedly connected to the machine tool base (1), and a first power mechanism for driving the workbench (25) to rotate is installed on the machine tool base (1); a vertical support plate (2) is fixed to the machine tool base (1), and the support plate (2) is located at the hinged end between the workbench (25) and the machine tool base (1), and a second power mechanism is installed on the support plate (2), and the second power mechanism is connected to the electrolytic drill bit in a transmission manner; two mounting frames (29) are fixedly arranged on the workbench (25), and the two mounting frames (29) and the support plate (2) are located on the same side of the workbench (25), and the support plate (2) is located between the two mounting frames (29); a third power mechanism is installed on each mounting frame (29), and each third power mechanism is connected to a downward pressure positioning integrated mechanism in a transmission manner.

2. A 3D printed metal electrolytic drilling device according to claim 1, characterized in that: The third power mechanism comprises a fifth motor (30), and the fifth motor (30) is fixed on the mounting frame (29); the output shaft of the fifth motor (30) is fixedly connected to an eccentrically arranged turntable (32), and a rotating drum (33) is rotatably mounted on the turntable (32); a limit push rod (34) is arranged between the rotating drum (33) and the mounting frame (29), one end of the limit push rod (34) is hinged to the mounting frame (29), and the other end is hinged to the rotating drum (33); the downward pressing and positioning integrated mechanism is transmission-connected to the rotating drum (33) to drive the downward pressing and positioning integrated mechanism to press down the 3D printed metal plate (27); a transmission member is installed in the rotating drum (33), and the transmission member is transmission-coordinated with the downward pressing and positioning integrated mechanism to drive the downward pressing and positioning integrated mechanism to clamp and position the 3D printed metal plate (27).

3. A 3D printed metal electrolytic drilling device according to claim 2, characterized in that: The integrated downward positioning mechanism comprises a cylindrical pressing block (39), which is coaxially connected to the rotating drum (33) and is in transmission cooperation with the transmission member; a fixed block (40) is fixed on the outer circumferential curved surface of the pressing block (39), and an arc-shaped push rod (41) arranged along the circumference of the pressing block (39) is slidably installed on the upper limit position of the fixed block (40); the arc-shaped push rod (41) passes through the fixed block (40), and a stop block (44) is fixedly arranged on the rod body at the head end of the arc-shaped push rod (41) along the rotation direction of the pressing block (39), and a limit cap (43) is fixedly arranged on the rod body at the tail end of the arc-shaped push rod (41) along the rotation direction of the pressing block (39); a spring (42) is sleeved on the arc-shaped push rod (41), and the spring (42) is located between the fixed block (40) and the limit cap (43) and is fixedly connected to the fixed block (40) and the limit cap (43).

4. A 3D printed metal electrolytic drilling device according to claim 3, characterized in that: The transmission member comprises a first bevel gear (35), a second bevel gear (36) and a third bevel gear (37); the first bevel gear (35) is coaxially fixed on the rotating disk (32), the third bevel gear (37) is coaxially fixed in the pressing block (39), and the second bevel gear (36) is rotatably mounted in the rotating drum (33); the second bevel gear (36) is located between the first bevel gear (35) and the third bevel gear (37), and the first bevel gear (35) and the third bevel gear (37) are both meshed with the second bevel gear (36).

5. The 3D printed metal electrolytic drilling device according to claim 1, characterized in that: The first power mechanism comprises two vertical support rods (20), the two support rods (20) are fixedly connected to the machine tool base (1), and the workbench (25) rotates between the two support rods (20); a transmission shaft (24) parallel to the rotation axis of the workbench (25) is horizontally arranged between the two support rods (20), and connecting blocks (23) are fixedly arranged on both axial ends of the transmission shaft (24); the two support rods (20) correspond to the two connecting blocks (23) one by one, and each support rod (20) is provided with a limiting sliding groove in a vertical direction for limiting sliding cooperation with the corresponding connecting block (23); a clearance through hole (26) is provided on the workbench (25) in a direction parallel to the rotation axis of the workbench (25), and the transmission shaft (24) passes through the clearance through hole (26) and abuts against the workbench (25) for transmission cooperation.

6. The 3D printed metal electrolytic drilling device according to claim 5, characterized in that: A third threaded rod (22) is vertically arranged in the limiting sliding groove of the support rod (20), and the third threaded rod (22) is threadedly connected to the support rod (20); the third threaded rod (22) passes through the connecting block (23) in the limiting sliding groove and is threadedly connected to the connecting block (23); a fourth motor (21) is fixedly mounted on the support rod (20), and an output shaft of the fourth motor (21) is coaxially fixedly connected to the third threaded rod (22).

7. The 3D printed metal electrolytic drilling device according to claim 1, characterized in that: The second power mechanism comprises a first transverse plate (4) arranged along the width direction of the workbench (25) and a second transverse plate (6) arranged along the length direction of the workbench (25); the first transverse plate (4) is fixedly connected to the support plate (2); a first guide groove with a notch facing downward is provided at the bottom of the first transverse plate (4) along the width direction of the workbench (25); a first guide block is installed in the first guide groove for limited sliding; the second transverse plate (6) is fixed to the bottom of the first guide block; a second guide groove with a notch facing downward is provided at the bottom of the second transverse plate (6) along the length direction of the workbench (25); a second guide block is installed in the second guide groove for limited sliding; a mounting seat (9) is fixedly provided at the bottom of the second guide block, an electric push rod (10) is fixedly installed at the bottom of the mounting seat (9), and the telescopic shaft of the electric push rod (10) faces vertically downward and is fixedly connected to the electrolytic drill bit.

8. The 3D printed metal electrolytic drilling device according to claim 7, characterized in that: The electrolytic drill bit comprises a power supply unit, a drilling wire (17), a guide shaft (15) and a driving unit; the telescopic shaft of the electric push rod (10) is fixedly connected to the equipment box (11), and the power supply unit and the driving unit are both installed in the equipment box (11); wherein the driving unit comprises a third motor (12), the third motor (12) is fixedly connected to the equipment box (11), the guide shaft (15) vertically passes through the equipment box (11) and is rotatably connected to the equipment box (11); a first gear (13) is fixedly sleeved on the output shaft of the third motor (12), a second gear (14) is fixedly sleeved on the top end of the guide shaft (15), and the first gear (13) is meshed with the second gear (14); the drilling wire (17) is electrically connected to the power supply unit and vertically and coaxially slides downward through the guide shaft (15).

9. The 3D printed metal electrolytic drilling device according to claim 7, characterized in that: A first threaded rod (5) is horizontally arranged in the first guide groove along the width direction of the workbench (25), and the first threaded rod (5) is rotatably connected to the first transverse plate (4); the first threaded rod (5) passes through the first guide block and is threadedly connected to the first guide block; a first motor (3) is fixedly installed on the first transverse plate (4), and the output shaft of the first motor (3) is coaxially fixedly connected to the first threaded rod (5); a second threaded rod (8) is horizontally arranged in the second guide groove along the length direction of the workbench (25), and the second threaded rod (8) is rotatably connected to the second transverse plate (6); the second threaded rod (8) passes through the second guide block and is threadedly connected to the second guide block; a second motor (7) is fixedly installed on the second transverse plate (6), and the output shaft of the second motor (7) is coaxially fixedly connected to the second threaded rod (8).

10. The 3D printed metal electrolytic drilling device according to claim 1, characterized in that: Two symmetrically arranged support legs (19) are fixed on the machine tool base (1), and two hinged seats (28) are fixed on the workbench (25). The two hinged seats (28) correspond to the two support legs (19) one by one, and the top end of each support leg (19) is hinged to the corresponding hinged seat (28).

Images