Diamond forming machine

Abstract

The utility model discloses a kind of diamond forming machines, including stand, vertical moving mechanism is equipped in the upper side of stand, first horizontal moving mechanism is equipped in the lower side of stand, the lower side of vertical moving mechanism is connected with upper base, first rotary power mechanism is installed on upper base, the power output end of first rotary power mechanism is equipped with first clamping mechanism, to clamp workpiece;The top of first horizontal moving mechanism is equipped with lower base, second rotary power mechanism is installed on lower base, the power output end of second rotary power mechanism is equipped with second clamping mechanism, second clamping mechanism clamps electrode, electrode is annular, and convex ring is equipped on the outer circumferential surface of electrode.The utility model adopts wheel type electrode to rotate the cooperation mode on annular diamond workpiece outer circumferential surface and discharge machining groove, electrode loss speed is slow, reduces the frequency of stoppage replacement, electrode finishing, is beneficial to improve production efficiency, and the consistency of annular groove on workpiece is good.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, specifically to a diamond forming machine. Background Technology

[0002] Due to the extremely high hardness of diamond, ordinary machining equipment using the cutting head / wire cutting principle is generally not suitable for diamond forming and processing.

[0003] When it is necessary to machine grooves on the outer periphery of a ring-shaped diamond workpiece, existing technologies employ electrode discharge machining (EDM). However, current diamond forming machines using EDM generally use strip electrodes, which suffer from rapid electrode wear. Due to this rapid wear, frequent electrode replacements are required, resulting in low efficiency. Furthermore, this rapid electrode wear also causes the distance between the electrode and the workpiece surface to increase rapidly during machining, leading to inconsistent groove depths and poor machining uniformity. Utility Model Content

[0004] The purpose of this invention is to provide a diamond forming machine.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A diamond forming machine includes a column, a vertical moving mechanism on the upper side of the column, a first horizontal moving mechanism on the lower side of the column, an upper base connected to the lower side of the vertical moving mechanism, a first rotary power mechanism mounted on the upper base, a first clamping mechanism at the power output end of the first rotary power mechanism for clamping a workpiece, an upper protective cover on the outer side of the upper base, and a first brush on the upper protective cover for supplying power to the workpiece.

[0007] The first horizontal moving mechanism has a lower base at its top, and a second rotary power mechanism is mounted on the lower base. The power output end of the second rotary power mechanism has a second clamping mechanism, and the second clamping mechanism clamps an electrode. A lower protective cover is provided on the outside of the lower base, and a second brush is provided on the lower protective cover to supply power to the electrode. The electrode is annular, and a convex ring is provided on the outer circumference of the electrode.

[0008] As a further improvement of the present invention, a second horizontal moving mechanism is provided on the top of the first horizontal moving mechanism. The second horizontal moving mechanism is provided with a cutter head, and the cutter head is provided with a correction groove that matches the radial cross-sectional shape of the convex ring.

[0009] As a further improvement of the present invention, the first rotary power mechanism includes a first motor, a first pulley group, and a first rotating shaft. The first motor is mounted on the upper base through a first motor mount, the first rotating shaft passes through the upper base, and the first pulley group transmits torque between the first motor and the first rotating shaft.

[0010] As a further improvement of the present invention, the first clamping mechanism includes a receiving plate, a first clamping plate, and a first pressure plate that are coaxially arranged with the first rotating shaft. The receiving plate is locked and fixed to the end face of the first rotating shaft by a number of eccentrically arranged bolts. The first clamping plate is locked and fixed to the receiving plate by a number of eccentrically arranged bolts. The first pressure plate is detachably connected to the first clamping plate by bolts so as to cooperate with the first clamping plate to clamp the workpiece.

[0011] Both the receiving plate and the first clamping plate are made of conductive material. The receiving plate is in electrical contact with the first brush, and the first clamping plate is in electrical contact with the workpiece.

[0012] As a further improvement of the present invention, the first rotating shaft is made of insulating material at least at the connection point with the electrical contact plate, and the first brush is mounted on the upper cover via a first insulating mounting pad.

[0013] As a further improvement of the present invention, the second rotary power mechanism includes a second motor, a second pulley group, and a second rotating shaft. The second motor is mounted on the lower base through a second motor mount, the second rotating shaft passes through the lower base, and the second pulley group transmits torque between the second motor and the second rotating shaft.

[0014] As a further improvement of the present invention, the second clamping mechanism includes a second clamping plate, a second pressure plate, and a tensioning pad that are coaxially arranged with the second rotating shaft. The second pressure plate is locked and fixed to the second clamping plate by a number of eccentrically arranged bolts so as to cooperate with the second clamping plate to clamp the electrode.

[0015] The outer periphery of the power output end of the second rotating shaft is provided with a first conical surface, and the inner periphery of the second clamping plate is provided with a second conical surface that mates with the first conical surface. The tensioning pad is connected to the end face of the second rotating shaft by bolts so that the second conical surface is tightly pressed against the first conical surface.

[0016] The second clamp is made of conductive material and is in electrical contact with the second brush and the electrode.

[0017] As a further improvement of the present invention, the second rotating shaft is made of insulating material at least at the connection with the second clamping plate, and the second brush is mounted on the lower cover through a second insulating mounting pad.

[0018] Compared with the prior art, the technical advantages of this utility model are as follows:

[0019] This invention uses a wheel-type electrode to perform electrical discharge machining on the outer circumferential surface of a ring-shaped diamond workpiece in a rotating engagement manner. Compared with the strip-shaped electrode in the prior art, the electrode has more contact points between the convex ring and the workpiece, and the height of the convex ring decreases more slowly due to wear during the machining process. Consequently, the distance between the convex ring and the workpiece surface increases more slowly due to wear of the convex ring, resulting in better consistency in the depth of the machined grooves on the workpiece.

[0020] At the same time, because the wear rate of the convex ring is slow, it also reduces the frequency of downtime for electrode replacement and repair, which is beneficial to improving production efficiency.

[0021] Furthermore, when the height of the convex ring decreases due to wear, a cutting tool can be used to cut and trim the outer circumferential surfaces of the electrodes on both sides of the convex ring, restoring the height of the convex ring and further improving the service life of the electrodes. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the diamond forming machine in the embodiment of this utility model;

[0023] Figure 2 This is a three-dimensional structural schematic diagram of the diamond forming machine from another perspective in the embodiment of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the diamond forming machine after the protective cover is removed in the embodiment of this utility model;

[0025] Figure 4 This is a three-dimensional structural schematic diagram of the diamond forming machine after the protective cover is removed in the embodiment of this utility model.

[0026] Figure 5 This is a three-dimensional structural diagram of the workpiece processing position of the diamond forming machine in the embodiment of this utility model;

[0027] Figure 6 This is a three-dimensional structural schematic diagram of the workpiece processing position of the diamond forming machine in an embodiment of this utility model from another perspective;

[0028] Figure 7 This is a three-dimensional structural diagram of the diamond forming machine cutter head in an embodiment of this utility model;

[0029] Figure 8This is an exploded structural diagram of the first clamping mechanism in the embodiment of this utility model;

[0030] Figure 9 This is an exploded structural diagram of the second clamping mechanism in an embodiment of this utility model. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0032] Please see Figures 1 to 9 A diamond forming machine includes a column 1, a vertical moving mechanism 2 on the upper side of the column 1, a first horizontal moving mechanism 3 on the lower side of the column 1, an upper base 4 connected to the lower side of the vertical moving mechanism 2, a first rotary power mechanism mounted on the upper base 4, a first clamping mechanism at the power output end of the first rotary power mechanism for clamping a workpiece 5, an upper protective cover 6 on the outer side of the upper base 4, and a first brush 7 on the upper protective cover 6 for supplying power to the workpiece 5.

[0033] The first horizontal moving mechanism 3 has a lower base 8 at its top. A second rotating power mechanism is installed on the lower base 8. The power output end of the second rotating power mechanism is provided with a second clamping mechanism. The second clamping mechanism clamps an electrode 9. A lower protective cover 10 is provided on the outside of the lower base 8. A second brush 19 is provided on the lower protective cover 10 to supply power to the electrode 9. The electrode 9 is annular, and a convex ring 91 is provided on the outer circumferential surface of the electrode 9.

[0034] It should be noted that the vertical moving mechanism 2, the first horizontal moving mechanism 3, and the second horizontal moving mechanism 11 described below can all adopt common moving structures found in machining equipment.

[0035] For example, the vertical moving mechanism 2 includes a motor, a lead screw, and a slider. The lead screw is vertically arranged and threadedly engaged with the slider. When the motor drives the lead screw to rotate, it can drive the slider to move in the vertical direction.

[0036] For example, the first horizontal moving mechanism 3 may include two horizontally arranged lead screws and two slide plates. The two lead screws are arranged vertically between each other, and the two lead screws are threadedly engaged with the two slide plates. When the lead screws are rotated by handwheels at the ends of the lead screws, the two slide plates can be moved in the X and Y directions of the horizontal plane, respectively. The structure and working principle of the second horizontal moving mechanism 11 are similar to those of the first horizontal moving mechanism 3, and will not be described in detail here.

[0037] This application does not limit the specific structure of the vertical moving mechanism 2 and the first and second horizontal moving mechanisms. The vertical moving mechanism 2 can move the upper base 4 up and down, and thus move the workpiece 5 clamped by the first rotary power mechanism and the first clamping mechanism up and down. The first horizontal moving mechanism 3 can move the lower base 8 in the X and Y directions of the horizontal plane, and thus move the electrode 9 clamped by the second rotary power mechanism and the second clamping mechanism in the X and Y directions of the horizontal plane. The second horizontal moving mechanism 11 can move the cutting head 12 in the X and Y directions of the horizontal plane.

[0038] In use, the first horizontal moving mechanism 3 moves the electrode 9 to below the workpiece 5, aligns the convex ring 91 with the position of the groove to be processed on the outer periphery of the workpiece 5, and then the vertical moving mechanism 2 lowers the height of the workpiece 5 so that the convex ring 91 contacts the workpiece 5. The first rotational power mechanism drives the workpiece 5 to rotate, and the second rotational power mechanism drives the electrode 9 to rotate. Through the rotational contact discharge between the convex ring 91 and the outer periphery of the workpiece 5, a groove with the same shape as the convex ring 91 is processed on the outer periphery of the workpiece 5.

[0039] Furthermore, a second horizontal moving mechanism 11 is provided on the top of the first horizontal moving mechanism 3. The second horizontal moving mechanism 11 is provided with a cutter head 12, and the cutter head 12 is provided with a correction groove 121 that matches the radial cross-sectional shape of the convex ring 91.

[0040] The second horizontal moving mechanism 11 is used to adjust the relative position of the cutter head 12 and the electrode 9. When the protruding ring 91 of the electrode 9 wears down during use, resulting in insufficient protrusion of the protruding ring 91 from the outer circumferential surface of the electrode 9, the cutter head 12 is moved by the second horizontal moving mechanism 11 so that the correction groove 121 on the cutter head 12 is aligned with the protruding ring 91 on the electrode 9. The second rotary power mechanism drives the electrode 9 to rotate, and the first and / or second horizontal moving mechanism controls the electrode 9 and the cutter head 12 to move closer together, so that the cutter head 12 cuts the outer circumferential surface of the electrode 9 on both sides of the protruding ring 91 until the protrusion height of the protruding ring 91 can fill the correction groove 121. Using the cutter head 12 in conjunction with the second horizontal moving mechanism 91 to trim the electrode 9 can extend the service life of the electrode 9.

[0041] Furthermore, the first rotary power mechanism includes a first motor 131, a first pulley assembly 132, and a first rotating shaft 133. The first motor 131 is mounted on the upper base 4 via a first motor mount 134, and the first rotating shaft 133 is disposed through the upper base 4. The first pulley assembly 132 transmits torque between the first motor 131 and the first rotating shaft 133.

[0042] The first rotary power mechanism uses the first motor 131 as the power source. The first motor 131 can drive the first rotating shaft 133 to rotate through the first pulley group 132.

[0043] Furthermore, the first clamping mechanism includes a receiving plate 141, a first clamping plate 142, and a first pressure plate 143 coaxially arranged with the first rotating shaft 133. The receiving plate 141 is locked and fixed to the end face of the first rotating shaft 133 by a plurality of eccentric bolts (offset from the axis of the receiving plate 141). The first clamping plate 142 is locked and fixed to the receiving plate 141 by a plurality of eccentric bolts (offset from the axis of the first clamping plate 142). The first pressure plate 143 is detachably connected to the first clamping plate 142 by bolts at the axis, so as to cooperate with the first clamping plate 142 to clamp the workpiece 5.

[0044] After being connected by bolts, the junction box 141 and the first clamping plate 142 can rotate synchronously with the first rotating shaft 133. When the workpiece 5 is placed on the first clamping plate 142 and the first pressure plate 143 is locked with bolts, the workpiece 5 is clamped between the first clamping plate 142 and the first pressure plate 143, and the workpiece 5 can also rotate synchronously with the first rotating shaft 133.

[0045] In some embodiments, in order to more reliably realize torque transmission between workpiece 5 and the first clamping mechanism, a keyway structure for rotational limiting can also be provided between workpiece 5 and the first clamping plate 142.

[0046] The receiving plate 141 and the first clamping plate 142 are both made of conductive material. The receiving plate 141 is in electrical contact with the first brush 7, and the first clamping plate 142 is in electrical contact with the workpiece 5.

[0047] The first brush 7 conducts electricity through the electrode plate 141 and the first clamping plate 142 to provide potential to the workpiece 5, so that the workpiece 5 generates high temperature when it comes into contact with the electrode 9, thereby realizing the groove processing of the workpiece 5.

[0048] Furthermore, the first rotating shaft 133 is made of insulating material at least at the connection point with the junction plate 141, and the first brush 7 is mounted on the upper cover 6 via a first insulating mounting pad 15.

[0049] The connection end of the first rotating shaft 133 and the receiving plate 141 extends out of the upper protective cover 6. The receiving plate 141 is not in contact with the upper protective cover 6 and the upper base 4. The end of the first rotating shaft 133 connected to the receiving plate 141 or the entire first rotating shaft 133 is made of insulating material, which can prevent the current of the receiving plate 141 from being conducted to the upper protective cover 6 and the upper base 4, thus avoiding the safety hazard of the outer shell being electrified.

[0050] Similarly, the first brush 7 is mounted on the upper cover 6 via the first insulating mounting pad 15, also to prevent the upper cover 6 from becoming energized.

[0051] Furthermore, the second rotary power mechanism includes a second motor 161, a second pulley set 162, and a second rotating shaft 163. The second motor 161 is mounted on the lower base 8 via a second motor mount 164, and the second rotating shaft 163 is disposed through the lower base 8. The second pulley set 162 transmits torque between the second motor 161 and the second rotating shaft 163.

[0052] The second rotary power mechanism uses the second motor 161 as the power source. The second motor 161 can drive the second rotating shaft 163 to rotate through the second pulley group 162.

[0053] Furthermore, the second clamping mechanism includes a second clamping plate 171, a second pressure plate 172, and a tensioning pad 173, which are coaxially arranged with the second rotating shaft 163. The second pressure plate 172 is locked and fixed to the second clamping plate 171 by a number of eccentric (offset from the axis of the second pressure plate 172) bolts, so as to cooperate with the second clamping plate 171 to clamp the electrode 9.

[0054] The outer periphery of the power output end of the second rotating shaft 163 is provided with a first conical surface 1631, and the inner periphery of the second clamping plate 171 is provided with a second conical surface that mates with the first conical surface 1631. The tensioning pad 173 is connected to the end face of the second rotating shaft 163 by bolts so that the second conical surface is tightly pressed against the first conical surface 1631.

[0055] The second clamping plate 171 is made of conductive material, and the second clamping plate 171 is in electrical contact with the second brush 19 and the electrode 9.

[0056] After placing electrode 9 on the second clamping plate 171 and locking the second pressure plate 172 with bolts, electrode 9 is clamped between the second clamping plate 171 and the second pressure plate 172. After connecting the end faces of the tensioning pad 173 and the second rotating shaft 163 with bolts, the tensioning pad 173 presses the second clamping plate 171 against the power output end of the second rotating shaft 163. The second conical surface cooperates with the first conical surface 1631 to achieve axial positioning of the second clamping mechanism and electrode 9. Under the frictional force of the first and second conical surfaces, the second clamping plate 171 can rotate synchronously with the second rotating shaft 163, thereby driving electrode 9 to rotate synchronously with the second rotating shaft 163.

[0057] In some embodiments, to more reliably achieve torque transmission between electrode 9 and the second clamping mechanism, a keyway structure for rotational limiting can also be provided between electrode 9 and the second clamping plate 171. Similarly, to more reliably achieve torque transmission between the second clamping mechanism and the second rotating shaft 163, a keyway structure for rotational limiting can also be provided between the second clamping plate 171 and the second rotating shaft 163.

[0058] Furthermore, the second rotating shaft 163 is made of insulating material at least at the connection with the second clamping plate 171, and the second brush 19 is mounted on the lower cover 10 via the second insulating mounting pad 18.

[0059] The connecting end of the second rotating shaft 163 and the second clamping plate 171 extends out of the lower cover 10. The second clamping plate 171 is not in contact with the lower cover 10 and the lower base 8. The end of the second rotating shaft 163 connected to the second clamping plate 171 or the entire second rotating shaft 163 is made of insulating material, which can prevent the current of the second clamping plate 171 from being conducted to the lower cover 10 and the lower base 8, thus avoiding the safety hazard of the outer shell being electrified.

[0060] Similarly, the second brush 19 is mounted on the lower cover 10 via the second insulating mounting pad 18, also to prevent the lower cover 10 from becoming energized.

[0061] Compared with the prior art, the technical advantages of this utility model are as follows:

[0062] This invention uses a wheel-type electrode 9 to perform electrical discharge machining on the outer circumferential surface of a ring-shaped diamond workpiece in a rotating engagement manner. Compared with the strip-shaped electrode in the prior art, the electrode 9 has more contact points between the convex ring 91 and the workpiece 5. The height of the convex ring 91 decreases more slowly due to wear during the machining process. Consequently, the distance between the convex ring 91 and the surface of the workpiece 5 increases more slowly due to wear of the convex ring 91. The depth of the grooves machined on the workpiece 5 is more consistent.

[0063] At the same time, because the wear rate of the convex ring 91 is slow, the frequency of downtime for replacement and repair of electrode 9 is reduced, which is beneficial to improving production efficiency.

[0064] Furthermore, when the height of the convex ring 91 decreases due to wear, the cutter head 12 can be used to cut and trim the outer circumferential surfaces of the electrodes 9 on both sides of the convex ring 91, so that the height of the convex ring 91 is restored, further improving the service life of the electrodes 9.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A diamond forming machine, comprising a column, a vertical moving mechanism on the upper side of the column, and a first horizontal moving mechanism on the lower side of the column, characterized in that, The lower side of the vertical moving mechanism is connected to an upper base, and a first rotating power mechanism is installed on the upper base. The power output end of the first rotating power mechanism is provided with a first clamping mechanism to clamp the workpiece. An upper protective cover is provided on the outside of the upper base, and a first brush is provided on the upper protective cover to supply power to the workpiece. The first horizontal moving mechanism has a lower base at its top, and a second rotary power mechanism is mounted on the lower base. The power output end of the second rotary power mechanism has a second clamping mechanism, and the second clamping mechanism clamps an electrode. A lower protective cover is provided on the outside of the lower base, and a second brush is provided on the lower protective cover to supply power to the electrode. The electrode is annular, and a convex ring is provided on the outer circumference of the electrode.

2. The diamond forming machine according to claim 1, characterized in that, The top of the first horizontal moving mechanism is also provided with a second horizontal moving mechanism, which is provided with a cutter head, and the cutter head is provided with a correction groove that matches the radial cross-sectional shape of the convex ring.

3. A diamond forming machine according to claim 1, characterized in that, The first rotary power mechanism includes a first motor, a first pulley assembly, and a first rotating shaft. The first motor is mounted on the upper base via a first motor mount, and the first rotating shaft passes through the upper base. The first pulley assembly transmits torque between the first motor and the first rotating shaft.

4. A diamond forming machine according to claim 3, characterized in that, The first clamping mechanism includes a receiving plate, a first clamping plate, and a first pressure plate that are coaxially arranged with the first rotating shaft. The receiving plate is locked and fixed to the end face of the first rotating shaft by a number of eccentrically arranged bolts. The first clamping plate is locked and fixed to the receiving plate by a number of eccentrically arranged bolts. The first pressure plate is detachably connected to the first clamping plate by bolts so as to cooperate with the first clamping plate to clamp the workpiece. Both the receiving plate and the first clamping plate are made of conductive material. The receiving plate is in electrical contact with the first brush, and the first clamping plate is in electrical contact with the workpiece.

5. A diamond forming machine according to claim 4, characterized in that, The first rotating shaft is made of insulating material at least at its connection with the junction plate, and the first brush is mounted on the upper cover via a first insulating mounting pad.

6. A diamond forming machine according to claim 1, characterized in that, The second rotary power mechanism includes a second motor, a second pulley assembly, and a second rotating shaft. The second motor is mounted on the lower base via a second motor mount, and the second rotating shaft passes through the lower base. The second pulley assembly transmits torque between the second motor and the second rotating shaft.

7. A diamond forming machine according to claim 6, characterized in that, The second clamping mechanism includes a second clamping plate, a second pressure plate, and a tensioning pad, which are coaxially arranged with the second rotating shaft. The second pressure plate is locked and fixed to the second clamping plate by a number of eccentrically arranged bolts so as to cooperate with the second clamping plate to clamp the electrode. The outer periphery of the power output end of the second rotating shaft is provided with a first conical surface, and the inner periphery of the second clamping plate is provided with a second conical surface that mates with the first conical surface. The tensioning pad is connected to the end face of the second rotating shaft by bolts so that the second conical surface is tightly pressed against the first conical surface. The second clamp is made of conductive material and is in electrical contact with the second brush and the electrode.

8. A diamond forming machine according to claim 7, characterized in that, The second rotating shaft is made of insulating material at least at its connection with the second clamping plate, and the second brush is mounted on the lower cover via a second insulating mounting pad.

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