Low-cost high-efficiency wet drawing mold processing device

Abstract

The application relates to a low-cost and high-efficiency wet-drawing mold processing device, which comprises a rack, a guide wheel, a diamond wire bus, a driving mechanism, a borax solution tank, a drying device, a micro-powder box, a pressing mold and a mold clamp. The borax solution tank, the drying device and the micro-powder box are arranged on the circulating path of the diamond wire bus, the passing diamond wire bus is processed, the diamond wire bus surface is stably attached with appropriate diamond grit, the diamond wire bus surface roughness is improved, the wire processing efficiency of the diamond wire bus on the wet-drawing mold is improved, the cost of the diamond wire bus is lower than that of the tungsten wire, so that the processing cost of the wet-drawing mold is greatly reduced, meanwhile, the diamond wire bus adopts a circulating operation mode, the diamond wire bus surface can be continuously supplemented with diamond grit, the wire processing effect of the diamond wire bus on the wet-drawing mold is maintained, and the processing efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mold processing, and particularly relates to a low-cost and high-efficiency wet-drawing mold processing device. BACKGROUND

[0002] At present, the wire used for mold linear processing is mainly tungsten wire, but the tungsten wire is expensive, and the processing efficiency of single crystal mold is low, which causes high mold processing cost and cannot meet the demand of wet-drawing mold processing, resulting in insufficient wet-drawing mold products, and affecting the production start-up rate and yield of the diamond wire busbar. SUMMARY

[0003] The application solves the technical problem of providing a low-cost and high-efficiency wet-drawing mold processing device, which can use the diamond wire busbar to replace the tungsten wire for linear processing of the wet-drawing mold, thereby improving the processing efficiency and reducing the processing cost.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is: a low-cost and high-efficiency wet drawing die processing device, comprising a rack, a plurality of guide wheels arranged in a ring on the rack, a ring-shaped diamond wire bus around each guide wheel, at least one guide wheel in the plurality of guide wheels is drivingly connected with a driving mechanism, and is used as a driving wheel to drive the diamond wire bus to rotate circumferentially, a borax solution tank connected with the rack is arranged on the movement path of the diamond wire bus, a drying device connected with the rack is arranged on the downstream side of the borax solution tank, a micro-powder box connected with the rack is arranged on the downstream side of the drying device, a pressing die connected with the rack is arranged on the downstream side of the micro-powder box, and a die clamp connected with the rack is arranged on the downstream side of the pressing die; the diamond wire bus passes through the borax solution tank, the drying device, the micro-powder box, the pressing die in sequence, and then passes through the wet drawing die drawing center hole clamped by the die clamp; the upper end surface of the borax solution tank is provided with a center groove and an annular groove located at the periphery of the center groove, the peripheral groove wall of the annular groove is lower than the groove wall of the center groove, the groove wall of the center groove is provided with an overflow gap for the diamond wire bus to pass through, the annular groove and the center groove are communicated through a circulating pipe, a circulating pump is arranged on the circulating pipe, the circulating pump pumps the borax solution in the annular groove into the center groove, the borax solution in the center groove flows back into the annular groove through the overflow gap, and the diamond wire bus is immersed in the sandblasting solution in the center groove when passing through the overflow gap; an inlet hole is formed in the upstream end of the micro-powder box, an outlet hole is formed in the downstream end of the micro-powder box, and the micro-powder box is filled with corundum particles; the diamond wire bus enters the micro-powder box from the inlet hole and is covered with corundum particles, and then exits the micro-powder box from the outlet hole after passing through the corundum particles; the die hole of the pressing die comprises a pre-bell hole, an extrusion center hole and a post-bell hole connected in sequence from the upstream end to the downstream end, the diameter of the extrusion center hole is 1-3 microns larger than the diameter of the diamond wire bus, the diameter of the pre-bell hole gradually decreases from the upstream to the downstream, and the diameter of the post-bell hole gradually increases from the upstream to the downstream; the die clamp comprises a clamp seat fixedly connected with the rack, an L-shaped first sliding block slidingly connected with the clamp seat, a first driving screw threadedly connected with the first sliding block and rotatably connected with the clamp seat, and a first servo motor connected with the clamp seat and used for driving the first driving screw to rotate, the axial direction of the first driving screw is parallel to the sliding direction of the first sliding block; the second driving screw is rotatably connected with the first driving screw and the second servo motor is connected with the first driving screw and used for driving the second driving screw to rotate, the first sliding block is slidingly connected with the second sliding block, the second sliding block is threadedly connected with the second driving screw and the sliding direction of the second sliding block is consistent with the axial direction of the second driving screw, the second sliding block is fixedly connected with a clamping frame, and the clamping frame is connected with two clamping jaws capable of moving towards each other.

[0005] As a preferred scheme, the drying device is an oven or a hot air machine.

[0006] As a preferred solution, the first servo motor and the second servo motor are connected with a controller respectively and are controlled by the controller.

[0007] As a preferred solution, two coaxial adjusting slide rods are threadedly connected on the clamping frame, the two clamping jaws are both semi-annular and are connected at opposite ends of the two adjusting slide rods respectively, the concave surfaces of the two clamping jaws face each other, and the opposite ends of the two adjusting slide rods are connected with air cylinders fixedly connected with the clamping frame.

[0008] As a preferred solution, the die is installed in the micro-powder box, the die is located between the wire inlet hole and the wire outlet hole, and the die is closer to the wire outlet hole.

[0009] The beneficial effects of the present application are as follows: the borax solution tank, the drying device, the micro-powder box and the die are arranged on the circulating path of the diamond wire bus to process the passing diamond wire bus, so that the diamond wire bus surface stably adheres to an appropriate amount of diamond sand, the diamond wire bus surface roughness is improved, the wire processing efficiency of the diamond wire bus on the wet drawing die is improved, the cost of the diamond wire bus is lower than that of the tungsten wire, so that the processing cost of the wet drawing die can be greatly reduced, and the diamond wire bus is in a circulating operation mode, so that the diamond sand on the diamond wire bus surface can be continuously supplemented, the wire processing effect of the diamond wire bus on the wet drawing die is maintained, and the processing efficiency is further improved.

[0010] The first servo motor and the second servo motor are controlled by the controller to link together, so that the drawing center hole of the wet drawing die can be stably and accurately processed. BRIEF DESCRIPTION OF DRAWINGS

[0011] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0012] Fig. 1 is a structural plan view of the present application;

[0013] Fig. 2 is a half-section structural schematic view of the borax solution tank of the present application;

[0014] Fig. 3 is a half-section structural schematic view of the micro-powder box of the present application;

[0015] Fig. 4 is a half-section structural schematic view of the die of the present application;

[0016] Fig. 5 is a specific structural schematic view of the die clamp of the present application;

[0017] Fig. 6 is a structural schematic view of the die arranged in the micro-powder box of the present application;

[0018] Figs. 1-6In the middle section: 1. Frame, 2. Guide wheel, 3. Diamond wire busbar, 4. Drive mechanism, 5. Borax solution tank, 501. Central groove, 502. Annular groove, 503. Overflow notch, 504. Circulation pipe, 505. Circulation pump, 6. Drying device, 7. Micro powder box, 701. Wire inlet hole, 702. Wire outlet hole, 8. Pressing die, 801. Front horn hole, 802. Extrusion center hole, 803. Rear horn hole, 9. Die fixture, 901. Fixture base, 902. First slider, 903. First drive screw, 904. First servo motor, 905. Second drive screw, 906. Second servo motor, 907. Second slider, 908. Clamping frame, 909. Gripper, 910. Adjusting slide bar, 911. Cylinder, 10. Controller, 11. Wet drawing die, 12. Tension roller. Detailed Implementation

[0019] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] like Figs. 1-5 As shown, a low-cost, high-efficiency wet drawing die processing device includes a frame 1, multiple guide wheels 2 arranged in a ring on the frame 1, and a ring-shaped diamond wire busbar 3 wound around each guide wheel 2. Among the multiple guide wheels 2, at least one guide wheel 2 is connected to a drive mechanism 4 and is used as a drive wheel to drive the diamond wire busbar 3 to rotate circumferentially. In this embodiment, the drive mechanism 4 is an electric motor. Along the movement path of the diamond wire busbar 3, there are also a borax solution tank 5 connected to the frame 1, a drying device 6 located downstream of the borax solution tank 5 and connected to the frame 1, a micro powder box 7 located downstream of the drying device 6 and connected to the frame 1, a pressing die 8 located downstream of the micro powder box 7 and connected to the frame 1, and a die clamp 9 located downstream of the pressing die 8 and connected to the frame 1. The diamond wire busbar 3 passes through the borax solution tank 5, the drying device 6, the micro powder box 7, and the pressing die 8 in sequence, and then passes through the drawing center hole of the wet drawing die held by the die clamp 9.

[0021] The upper end face of the borax solution tank 5 is provided with a central tank 501 and an annular tank 502 located around the central tank 501. The outer wall of the annular tank 502 is lower than the wall of the central tank 501. An overflow notch 503 is provided on the wall of the central tank 501 for the diamond wire 3 to pass through. The annular tank 502 and the central tank 501 are connected by a circulation pipe 504. A circulation pump 505 is provided on the circulation pipe 504. The circulation pump 505 pumps the borax solution in the annular tank 502 into the central tank 501. The borax solution in the central tank 501 overflows back into the annular tank 502 through the overflow notch 503. When the diamond wire 3 passes through the overflow notch 503, it is immersed in the sandblasting solution in the central tank 501.

[0022] The micro powder box 7 has an inlet hole 701 at its upstream end and an outlet hole 702 at its downstream end. The micro powder box 7 is filled with diamond particles. The diamond wire 3 enters the micro powder box 7 through the inlet hole 701 and is covered by diamond particles. After passing through the diamond particles, it leaves the micro powder box 7 through the outlet hole 702.

[0023] The die 8 has a die hole including a front horn hole 801, an extrusion center hole 802 and a rear horn hole 803 connected sequentially from the upstream end to the downstream end. The diameter of the extrusion center hole 802 is 1 to 3 micrometers larger than the diameter of the diamond wire mother wire 3. The diameter of the front horn hole 801 gradually decreases from the upstream to the downstream end, and the diameter of the rear horn hole 803 gradually increases from the upstream to the downstream end.

[0024] The mold fixture 9 includes a fixture base 901 fixedly connected to the frame 1, an L-shaped first slider 902 slidably connected to the fixture base 901, a first drive screw 903 rotatably connected to the fixture base 901 and threadedly connected to the first slider 902, and a first servo motor 904 connected to the fixture base 901 for driving the first drive screw 903 to rotate. The axial direction of the first drive screw 903 is parallel to the sliding direction of the first slider 902. A second drive screw 905 perpendicular to the first drive screw 903 and a second servo motor 906 driving the second drive screw 905 to rotate are rotatably connected to the first slider 902. A second slider 907 is slidably connected to the first slider 902. The second slider 907 is threadedly connected to the second drive screw 905 and the sliding direction of the second slider 907 is consistent with the axial direction of the second drive screw 905. A clamping frame 908 is fixedly connected to the second slider 907. Two jaws 909 that can move in opposite directions are connected to the clamping frame 908.

[0025] In this embodiment, the drying device 6 is an oven or a hot air blower, preferably an oven, which has strong adjustment capability and can adjust the heating temperature according to the linear velocity of the diamond wire busbar 3 to ensure that the borax film layer on the diamond wire busbar 3 solidifies to the target hardness.

[0026] The first servo motor 904 and the second servo motor 906 are respectively connected to the controller 10 and controlled by the controller 10. Thus, the controller 10 controls the first servo motor 904 and the second servo motor 906 to work together to drive the wet drawing mold to move along the designed route.

[0027] like Fig. 5 As shown, two coaxially arranged adjusting slide rods 910 are slidably connected to the clamping frame 908. The two grippers 909 are both semi-circular and are fixedly connected to the opposite ends of the two adjusting slide rods 910. The concave arc surfaces of the two grippers 909 face each other. The opposite ends of the two adjusting slide rods 910 are respectively connected to cylinders 911 that are fixedly connected to the clamping frame 908.

[0028] In order to ensure the friction force between the diamond wire bus 3 and each guide wheel 2 and avoid slipping, a tension roller 12 is further arranged on the path of the diamond wire bus 3, the tension roller 12 is movably connected to the rack 1 and can move back and forth in the vertical direction of the diamond wire bus 3, and the diamond wire bus 3 also winds around the tension roller 12.

[0029] In actual production, the compression mold 8 can also be installed in the micro-powder box 7, the compression mold 8 is located between the wire inlet hole 701 and the wire outlet hole 702, and the compression mold 8 is closer to the wire outlet hole 702, so that the function of the compression mold 8 on the diamond sand on the diamond wire bus 3 can be realized, and meanwhile, the diamond sand can be prevented from falling on the machine table, the cleanliness of the equipment is improved, and the loss of diamond sand is reduced, as shown in Fig. 6 .

[0030] The working process of the present application is as follows: as shown in Figs. 1-5 , first, the wet drawing mold 11 is placed between the two clamping jaws 909, then the two cylinders 911 are controlled to act, the two clamping jaws 909 clamp the wet drawing mold 11, then the diamond wire bus 3 is threaded, one diamond wire bus 3 is threaded through the drawing center hole of the wet drawing mold 11, and after winding around all the guide wheels 2, the first and the last are connected by welding to form a ring-shaped diamond wire bus 3, in order to ensure the contact pressure of the diamond wire bus 3 with each guide wheel 2 to avoid slipping of the diamond wire bus 3 relative to the guide wheel 2, one guide wheel 2 can be arranged to be movable perpendicular to the direction of the diamond wire bus 3 to provide appropriate tension to the diamond wire bus 3.

[0031] After the threading of the diamond wire bus 3 is completed, the driving mechanism 4 is started, the driving mechanism 4 drives one guide wheel 2 to rotate and in turn drives the diamond wire bus 3 to rotate circularly, the diamond wire bus 3 is immersed in the borax solution when passing through the borax solution tank 5, after leaving the borax solution tank 5, the diamond wire bus 3 carrying the borax solution enters the drying device, the borax solution on the surface of the diamond wire bus 3 is dried to form a borax film layer, the diamond wire bus 3 wrapped by the borax film layer enters the micro-powder box 7, the diamond sand particles in the micro-powder box 7 are adhered by the borax film layer and follow the diamond wire bus 3 to leave the micro-powder box 7 and enter the compression mold 8, under the extrusion of the extrusion center hole 802 of the compression mold 8, part of the diamond sand particles are embedded in the borax film layer and form a stable structural relationship with the diamond wire bus 3, the excess diamond sand particles slide along the front horn hole 801 or the rear horn hole 803 to the lower side of the compression mold 8, and a collection groove can be arranged below the compression mold 8 to collect the diamond sand particles.

[0032] The diamond wire bus 3 after being pressed by the die 8 directly passes through the wet drawing die 11 to draw the center hole, and the diamond wire bus 3 with the surface carrying diamond particles greatly improves the surface roughness. When the diamond wire bus 3 passes through the wet drawing die 11 at high speed, the wet drawing die 11 is cut, and part of the diamond particles falls off in the cutting process. However, after one cycle, the surface of the diamond wire bus 3 is filled with diamond particles again, thereby realizing the high-efficiency cutting function of the wet drawing die 11.

[0033] The above examples only exemplarily illustrate the principles and effects of the present application and some applied examples, and are not used to limit the present application; it should be noted that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A low cost high efficiency wet draw die machining apparatus, characterized by, The invention discloses a kind of diamond wire drawing machine, including rack (1), be arranged on rack (1) multiple annularly arranged guide wheel (2), around being arranged on each guide wheel (2) one annular diamond wire bus (3), in multiple guide wheel (2), at least one guide wheel (2) is drivingly connected with driving mechanism (4), as driving wheel is used, driving diamond wire bus (3) circumferential circulation rotation, on the movement path of diamond wire bus (3), still be provided with borax solution tank body (5) connected on rack (1), located borax solution tank body (5) downstream side and connected on rack (1) drying device (6), located drying device (6) downstream side and with rack (1) connection micro-powder box (7), located micro-powder box (7) downstream side and with rack (1) connection die (8) and located die (8) downstream side and with rack (1) connection mould clamp (9), the diamond wire bus (3) passes through borax solution tank body (5), drying device (6), micro-powder box (7), die (8) in sequence after, pass through the center hole of wet drawing die that is clamped by mould clamp (9) and draws; The upper end of the borax solution tank body (5) is provided with a center groove (501) and an annular groove (502) located at the periphery of the center groove (501), the peripheral groove wall of the annular groove (502) is lower than the groove wall of the center groove (501), the groove wall of the center groove (501) is provided with an overflow gap (503) for the diamond wire bus (3) to pass through, the annular groove (502) is communicated with the center groove (501) through a circulating pipe (504), the circulating pipe (504) is provided with a circulating pump (505), the circulating pump (505) pumps the borax solution in the annular groove (502) into the center groove (501), the borax solution in the center groove (501) overflows back into the annular groove (502) through the overflow gap (503), and the diamond wire bus (3) is immersed in the sandblasting solution in the center groove (501) when passing through the overflow gap (503); The upstream end of the micro-powder box (7) is provided with an inlet hole (701), and the downstream end is provided with an outlet hole (702), the micro-powder box (7) is internally filled with corundum particles, the diamond wire bus (3) enters the micro-powder box (7) from the inlet hole (701) and is covered by the corundum particles, and exits the micro-powder box (7) from the outlet hole (702) after passing through the corundum particles; The die hole of the die (8) includes a pre-bell hole (801), an extrusion center hole (802) and a post-bell hole (803) connected in sequence from the upstream end to the downstream end, the diameter of the extrusion center hole (802) is 1-3 microns larger than the diameter of the diamond wire bus (3), the diameter of the pre-bell hole (801) gradually decreases from the upstream to the downstream, and the diameter of the post-bell hole (803) gradually increases from the upstream to the downstream. The mold clamp (9) comprises a clamp base (901) fixedly connected to the rack (1), an L-shaped first sliding block (902) slidingly connected to the clamp base (901), a first driving lead screw (903) rotatably connected to the clamp base (901) and threadedly connected with the first sliding block (902), and a first servo motor (904) connected to the clamp base (901) and used for driving the first driving lead screw (903) to rotate, wherein the axial direction of the first driving lead screw (903) is parallel to the sliding direction of the first sliding block (902); the first sliding block (902) is rotatably connected with a second driving lead screw (905) perpendicular to the first driving lead screw (903) and a second servo motor (906) used for driving the second driving lead screw (905) to rotate; a second sliding block (907) is slidingly connected to the first sliding block (902), the second sliding block (907) is threadedly connected with the second driving lead screw (905), and the sliding direction of the second sliding block (907) is consistent with the axial direction of the second driving lead screw (905); a clamping frame (908) is fixedly connected to the second sliding block (907); and two clamping jaws (909) capable of moving towards each other are connected to the clamping frame (908).

2. The wet draw tooling apparatus of claim 1, wherein, The drying device (6) is an oven or a hot air machine.

3. The wet draw tooling apparatus of claim 1, wherein, The first servo motor (904) and the second servo motor (906) are respectively connected with the controller (10) and controlled by the controller (10).

4. The wet draw tooling apparatus of claim 1, wherein, The clamping frame (908) is slidingly connected with two coaxially arranged adjusting sliding rods (910); the two clamping jaws (909) are both semicircular and fixedly connected to opposite ends of the two adjusting sliding rods (910); the concave surfaces of the two clamping jaws (909) face each other; and opposite ends of the two adjusting sliding rods (910) are respectively connected with air cylinders (911) fixedly connected with the clamping frame (908).

5. The wet draw tooling apparatus of claim 1, wherein, The compression mold (8) is installed in the micro-powder box (7), is located between the wire inlet hole (701) and the wire outlet hole (702), and is closer to the wire outlet hole (702).

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