Double chuck adjustment device for EDM machine

Abstract

The present invention is a double-chuck adjustment device for an electric spark machine, comprising a main lifting rod and a lifting and adjusting mounting plate at the bottom thereof, with two groups of chuck assemblies arranged in parallel thereunder, each group of chuck assemblies at least comprising a first fine-tuning mechanism and a second fine-tuning mechanism whose adjustment directions are perpendicular to each other, the two being fixed in between by a guide rail mounting plate, the bottom of the second fine-tuning mechanism being fixedly connected to the chuck through the chuck mounting plate, and an electrode being movably connected to the bottom of the chuck. The present invention has a simple structure, is convenient to operate for the staff, saves time and effort, and can also be applied to the rough adjustment and fine adjustment of the electrode position of the electric spark machine in the three directions of X, Y and Z before cutting molds of different sizes and shapes, has strong adaptability and high precision, one group of electric spark machines corresponds to two chuck electrodes, and two hole positions of the same mold are cut simultaneously in one cutting process, or two chuck electrodes are independently cut simultaneously for two different molds, the cutting time is shortened by half, and the cutting efficiency of the mold is effectively improved.

Description

Technical Field

[0001] The invention relates to an adjusting device of an electric spark machine used for manufacturing a profile extrusion die, in particular to a double-chuck adjusting device of an electric spark machine which can be adjusted in three directions. Background Art

[0002] In the aluminum profile extrusion production process, aluminum bars are passed through dies of different specifications through the extrusion process to form aluminum profile products with different cross-sectional shapes.

[0003] The mold is usually cylindrical in shape. During the mold preparation process, an EDM machine is required to cut the center of the mold to form a diversion hole, working belt, empty knife, etc. in the middle of the cylindrical mold for the aluminum material to pass through the molding. The aluminum profile extrusion process requires a very high degree of precision so that the extruded aluminum profile can reach the required size and accuracy. The same precise requirements are also imposed on the hole specifications of the mold.

[0004] In the actual production process, there are many sizes and types of molds, and the corresponding fixture equipment specifications are relatively numerous, which is costly. Traditional molds use a single chuck assembly to cut on the mold. When two or more forming holes are required on the mold, the chuck assembly needs to be used to cut one by one, which takes a long time and is inefficient. The chuck assembly needs to be positioned accurately each time it is placed. If there is a deviation, the entire mold may be scrapped. Summary of the invention

[0005] The technical problem solved by the invention is to provide a double-chuck adjustment device for an electric spark machine capable of performing XYZ three-way fine adjustment.

[0006] The technical means adopted by the present invention are described as follows.

[0007] A double chuck adjustment device for an electric spark machine comprises a main lifting rod, the bottom of which is connected to a lifting adjustment mounting plate, two groups of chuck assemblies are arranged in parallel under the lifting adjustment mounting plate, each group of chuck assemblies comprises at least a first fine-tuning mechanism and a second fine-tuning mechanism whose adjustment directions are perpendicular to each other, the two are fixed with a spacing through a guide rail mounting plate, the bottom of the second fine-tuning mechanism is fixedly connected to the chuck through the chuck mounting plate, and the bottom of the chuck is connected to an electrode.

[0008] Preferably, the first fine-tuning mechanism includes a first adjusting screw, at least one first screw seat, and at least one group of first sliding components that cooperate with each other to slide, and the first sliding component is installed between the lifting and lowering adjustment mounting plate and the guide rail mounting plate, and the at least one first screw seat is fixed to the bottom surface of the lifting and lowering adjustment mounting plate or the top surface of the guide rail mounting plate, and the first adjusting screw is installed on the first screw seat, and the first adjusting screw is in contact with the first sliding component and has mutually cooperating teeth, so that when the first adjusting screw is rotated, the first sliding component slides accordingly; the second fine-tuning mechanism includes a second adjusting screw, at least one second screw seat, and at least one group of second sliding components that cooperate with each other to slide, and the second sliding component is installed between the guide rail mounting plate and the chuck mounting plate, and the at least one second screw seat is fixed to the bottom surface of the guide rail mounting plate or the top surface of the chuck mounting plate, and the second adjusting screw is in contact with the second sliding component and has mutually cooperating teeth, so that when the second adjusting screw is rotated, the second sliding component slides relatively accordingly.

[0009] Preferably, the first fine-tuning mechanism includes two first screw seats and two groups of first sliding components, each group of first sliding components is a first slide rail and a first slider that slide in cooperation with each other, the first slide rail is mounted on the bottom surface of the lifting and adjusting mounting plate, and the first slider is mounted on the top surface of the guide rail mounting plate, or the first slider is mounted on the bottom surface of the lifting and adjusting mounting plate, and the first slide rail is mounted on the top surface of the guide rail mounting plate, the two first screw seats are located between the two groups of first sliding components, the two ends of the first adjusting screw are respectively mounted on the two first screw seats, the first adjusting screw is in contact with the first slide rails on both sides and have mutually cooperating teeth, so that when the first adjusting screw is rotated, the first slide rail moves accordingly Movement occurs; the second fine-tuning mechanism includes two second screw seats and two groups of second sliding components, each group of second sliding components is a second slide rail and a second slider that slide in cooperation with each other, the second slide rail is installed on the bottom surface of the guide rail mounting plate, and the second slider is installed on the top surface of the chuck mounting plate, or the second slider is installed on the bottom surface of the guide rail mounting plate, and the second slide rail is installed on the top surface of the chuck mounting plate, the two second screw seats are located between the two groups of second sliding components, the two ends of the second adjusting screw are respectively installed on the two second screw seats, the second adjusting screw is in contact with the second slide rails on both sides and have matching teeth, so that when the second adjusting screw is rotated, the second slide rail moves relatively.

[0010] Preferably, the bottom of the chuck extends downwardly out of a guide sleeve, a transverse rod is passed through the guide sleeve, a clamp is inserted into a through hole on the guide sleeve to fix one end of the transverse rod, and the other end of the transverse rod includes a lateral mounting groove, an electrode rod is inserted into the mounting groove, and the electrode is located at the bottom of the electrode rod.

[0011] Preferably, the bottom of the clamp is connected to a detachable connector, an electrode rod is arranged inside the bottom of the connector, and the electrode is located at the bottom of the electrode rod.

[0012] Preferably, one or two of the chuck assemblies are mounted on the lifting and adjusting mounting plate through a third fine-tuning mechanism, and the third fine-tuning mechanism comprises an auxiliary guide rail mounting plate and a lifting screw rod, the bottom end of which is rotatably connected to the auxiliary guide rail mounting plate; the lifting and adjusting mounting plate is provided with a mounting hole, a screw nut is inserted into the mounting hole, the lifting screw rod passes through the screw nut and can be rotated along the thread therein to produce an up and down displacement, so as to finely adjust the position of the chuck assembly as a whole upward or downward;

[0013] The first fine-adjustment mechanism is connected below the auxiliary guide rail mounting plate.

[0014] Preferably, a manual turntable is provided on the top of the lifting screw rod, and rotating the manual turntable drives the lifting screw rod to rotate in the screw rod nut. At least one auxiliary telescopic device is also provided between the auxiliary guide rail mounting plate and the lifting adjustment mounting plate. The bottom end of the auxiliary telescopic device is connected to the auxiliary guide rail mounting plate, and the top is connected to the lifting adjustment mounting plate or the middle part passes through the lifting adjustment mounting plate.

[0015] Preferably, reinforcing ribs are provided on the sides of the lifting and adjusting mounting plate.

[0016] The beneficial effects produced by the present invention are as follows.

[0017] (1) The present invention performs coarse adjustment in the X direction by means of the main lifting rod and the lateral movement rod, performs coarse adjustment in the Z direction by means of the cooperation between the main lifting rod, the mounting groove and the electrode rod, performs fine adjustment in the X and Y directions by means of the first and second fine adjustment mechanisms, and performs fine adjustment in the Z direction by means of the third fine adjustment mechanism. The structure is simple, and the operation is convenient for the staff, saving time and effort.

[0018] (2) The present invention can be applied to the coarse and fine adjustment and coarse and fine calibration of the electrode position of the EDM machine before cutting molds of different sizes and shapes, and has strong adaptability and high precision. According to actual needs, an EDM machine can use two chuck electrodes corresponding to two chuck assemblies to simultaneously cut two holes of the same mold in one cutting process, or can also simultaneously cut two holes on two molds separately. The cutting processes are independent of each other, and the cutting time is shortened by half, effectively improving the cutting efficiency of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the overall structure of the first embodiment of the present invention.

[0020] Figure 2 It is a left view of the overall structure of the first embodiment of the present invention.

[0021] Figure 3 It is a top view of the overall structure of the first embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the side structure of the transverse rod.

[0023] Figure 5 for Figure 4 Schematic diagram of the structure from a top view of the circled part.

[0024] Figure 6 It is a schematic diagram of the adjustment method of the first embodiment of the present invention.

[0025] Figure 7 It is a front view of the overall structure of the second embodiment of the present invention.

[0026] Figure 8 It is a schematic three-dimensional diagram of the overall structure of the second embodiment of the present invention.

[0027] Description of the figure number:

[0028] 11 main lifting rod, 12 lifting adjustment mounting plate, 13 reinforcing rib; 21 first adjusting screw rod, 22 first slide rail, 23 first slider, 24 first screw rod seat; 31 guide rail mounting plate, 32 chuck mounting plate, 321 chuck, 33 auxiliary guide rail mounting plate, 34 lifting screw rod, 341 manual turntable, 35 screw rod nut, 36 telescopic device; 41 second adjusting screw rod, 42 second slide rail, 43 second slider, 44 second screw rod seat; 51 guide sleeve, 52 transverse rod, 521 mounting groove, 53 clamping piece, 54 connector; 61 electrode rod, 62 electrode; mold 7. DETAILED DESCRIPTION

[0029] The present invention protects a double-chuck adjustment device for an electric spark machine, such as Figure 1 The first embodiment shown comprises a main lifting rod 11, the bottom of which is connected to a lifting adjustment mounting plate 12. The main lifting rod 11 serves as the Z axis of the spark machine, and can significantly raise and lower the position of the spark machine when needed.

[0030] A reinforcing rib 13 can be provided on the side of the lifting and adjusting mounting plate 12. Two sets of chuck assemblies are provided under the lifting and adjusting mounting plate 12, and the two sets of chuck assemblies can both be realized Figure 6 Adjustments in the X, Y and Z directions are shown.

[0031] Each set of chuck assemblies at least includes a first fine-tuning mechanism and a second fine-tuning mechanism, which are fixed in between by a guide rail mounting plate 31. The adjustment directions of the first fine-tuning mechanism and the second fine-tuning mechanism are perpendicular to each other. Figures 1 to 6In the first embodiment shown, the first fine-tuning mechanism realizes fine-tuning in the Y direction, and the second fine-tuning mechanism realizes fine-tuning in the X direction. Of course, the first fine-tuning mechanism can also realize fine-tuning in the X direction, and the second fine-tuning mechanism can realize fine-tuning in the Y direction (not shown in the figure), depending on the actual production process needs.

[0032] The first fine-tuning mechanism includes a first adjusting screw 21, two first screw seats 24, two sets of first slide rails 22 and first sliders 23 that slide in cooperation with each other. The two first sliders 23 and the two first screw seats 24 are fixed to the bottom surface of the lifting adjustment mounting plate 12, and the two first screw seats 24 are located between the two first sliders 23. The two ends of the first adjusting screw 21 are respectively penetrated on the two first screw seats 24. The two first slide rails 22 are respectively slidably connected to the two first sliders 23. At this time, the two first slide rails 22 are arranged on both sides of the first adjusting screw 21, and the axial direction of the first adjusting screw 21 is the same as the sliding direction. The side of the first adjusting screw 21 contacts the first slide rails 22 on both sides, and there are mutually engaged teeth, so that when the first adjusting screw 21 is rotated, the first slide rail 22 and the first slider 23 can slide relative to each other. The lower part of the first slide rail 22 is connected to the guide rail mounting plate 31.

[0033] The second fine-tuning mechanism includes a second adjusting screw 41, two second screw seats 44, two sets of second slide rails 42 and second sliders 43 that slide in cooperation with each other. The two second sliders 43 and the two second screw seats 44 are fixed to the bottom surface of the guide rail mounting plate 31, and the two second screw seats 44 are located between the two second sliders 43. The two ends of the second adjusting screw 41 are respectively mounted on the two second screw seats 44. The two second slide rails 42 are slidably connected to the two second sliders 43, and at this time, the two second slide rails 42 are arranged on both sides of the second adjusting screw 41, and the axial direction of the second adjusting screw 41 is the same as the sliding direction. The side surface of the second adjusting screw 41 contacts the second slide rails 42 on both sides, and there are mutually engaged teeth, so that when the second adjusting screw 41 is rotated, the second slide rail 42 and the second slider 43 can slide relative to each other. The lower part of the second slide rail 42 is connected to the chuck mounting plate 32.

[0034] Of course, the positional relationship between the slider, slide rail, screw and screw seat in the above-mentioned first fine-tuning mechanism and the second fine-tuning mechanism may have other deformation modes, such as the upper and lower positions of the slide rail and the slider are interchangeable, the screw seat is connected to the lower plate surface, etc., which are all deformation designs that can be made by technical personnel in this field based on the above-mentioned structure, and are all within the scope of the present invention.

[0035] Figure 1In the first embodiment shown, the bottom surface of the chuck mounting plate 32 is connected to the chuck 321. The bottom of the chuck 321 extends downwardly through a guide sleeve 51, which is provided with a through hole. A transverse rod 52 is passed through the guide sleeve 51, and a clamping piece 53 is inserted into the through hole to fix the position of the transverse rod 52. The other end of the transverse rod 52 includes a lateral mounting groove 521, which is used to mount the electrode rod 61.

[0036] exist Figure 1 In the left chuck assembly in the figure, the chuck assembly is installed as above, while the chuck assembly on the right is connected to the lifting and adjusting mounting plate 12 through the third fine-tuning mechanism of the Z axis. Specifically, the third fine-tuning mechanism includes an auxiliary guide rail mounting plate 33 and a lifting screw 34, and the bottom end of the lifting screw 34 is rotatably connected to the auxiliary guide rail mounting plate 33. The lifting and adjusting mounting plate 12 is provided with a mounting hole, in which a screw nut 35 is inserted, and the lifting screw 34 passes through the screw nut 35 upward. A manual turntable 341 may be provided on the top of the lifting screw 34, and the manual turntable 341 is rotated to drive the lifting screw 34 to rotate in the screw nut 35, so that the position of the left chuck assembly as a whole can be slightly adjusted upward or downward. A telescopic device 36 can also be provided between the auxiliary guide rail mounting plate 33 and the lifting and adjusting mounting plate 12 to assist in maintaining the spacing and stability between the two, and it can be installed at the four corners of the auxiliary guide rail mounting plate 33 as shown in the figure. The first slider 23 and the first screw seat 24 are mounted on the bottom surface of the auxiliary guide rail mounting plate 33 .

[0037] In the first embodiment, the guide sleeve 51 and the traverse rod 52 which can be transversely moved therein are used for coarse adjustment in the X direction, the traverse rod 52 cooperates with the electrode rod 61 which can be installed therein for coarse adjustment in the Z direction, the first fine adjustment mechanism is used for fine adjustment in the Y direction, the second fine adjustment mechanism is used for fine adjustment in the X direction, and the lifting screw 34 is used for fine adjustment in the Z direction. Whether the third fine adjustment mechanism of the Z axis needs to be set can be selectively set according to actual production needs.

[0038] like Figure 7 and Figure 8 In the second embodiment shown, the difference from the first embodiment is the installation method of the electrode rod 61 and the electrode 62. The bottom of the chuck 321 is connected to the detachable connector 54, and the electrode rod 61 is inserted into the bottom of the connector 54, and the electrode 62 is located at the bottom of the electrode rod 61. This embodiment does not include a coarse adjustment structure under the chuck 321, but directly connects the electrode rod 61 extending vertically downward under the chuck 321, and electrode cutting heads of different specifications can be selected to process two molds of different specifications at the same time, without affecting each other and independently of each other.

[0039] In the above embodiments, the first fine-tuning device is Y-axis fine-tuning and the second fine-tuning device is X-axis fine-tuning. In addition, when the first fine-tuning device is X-axis fine-tuning and the second fine-tuning device is Y-axis fine-tuning, the first and second fine-tuning devices in the above embodiments can be adaptively interchanged. In addition, the relative positions of the slider and the slide rail in the sliding assembly can also be adaptively swapped according to actual conditions, or other moving devices that can achieve relative displacement can be used, which will not be specifically described here.

[0040] by Figures 1 to 6 Taking the first embodiment shown as an example, the actual process of cutting the mold is described as follows.

[0041] (1) After the mold 7 is placed, adjust the main lifting rod 11 to adjust the position of the left chuck assembly to a suitable position above the mold, so that the distance between the left electrode 62 and the mold 7 is within the range of fine adjustment and coarse adjustment of the above structure.

[0042] (2) Adjust the position of the traverse rod 52 in the guide sleeve 51 to perform a coarse adjustment of the corresponding electrode 62 in the X direction; adjust the installation position of the electrode rod 61 at the installation groove 521 to perform a coarse adjustment of the corresponding electrode 62 in the Z direction.

[0043] (3) Turn the manual dial 341 to raise or lower the Z-axis position of the right chuck assembly so that the positions of the left and right electrodes are basically in the same horizontal plane.

[0044] (4) The first adjusting screws 21 in each of the two chuck groups are rotated to perform fine adjustment of the corresponding electrode 62 in the Y direction, and the second adjusting screws 41 are rotated to perform fine adjustment of the corresponding electrode 62 in the X direction.

[0045] (5) Check whether the electrode 62 has reached the required position and is accurate. If there is still a certain deviation, adjust any step in (1)-(4) as needed until the position meets the requirements.

[0046] After the above adjustment, the two electrodes 62 are located at the same horizontal plane and at a suitable position above the mold 7, and the chuck and the electrode are started to cut.

Claims

1. A double chuck adjustment device for an electric spark machine, characterized in that: It comprises a main lifting rod (11), the bottom of which is connected to a lifting adjustment mounting plate (12), two groups of chuck assemblies are arranged in parallel under the lifting adjustment mounting plate (12), each group of chuck assemblies comprises at least a first fine-adjustment mechanism and a second fine-adjustment mechanism whose adjustment directions are perpendicular to each other, the two are fixed at intervals by a guide rail mounting plate (31), the bottom of the second fine-adjustment mechanism is fixedly connected to the chuck (321) by the chuck mounting plate (32), and the bottom of the chuck (321) is connected to an electrode (62); The first fine-tuning mechanism comprises a first adjusting screw (21), at least one first screw seat (24), and at least one group of first sliding components that slide in cooperation with each other, the first sliding component being installed between the lifting and adjusting mounting plate (12) and the guide rail mounting plate (31), the at least one first screw seat (24) being fixed to the bottom surface of the lifting and adjusting mounting plate (12) or the top surface of the guide rail mounting plate (31), the first adjusting screw (21) being installed on the first screw seat (24), the first adjusting screw (21) being in contact with the first sliding component and having mutually cooperating teeth, so that when the first adjusting screw (21) is rotated, the first sliding component slides accordingly; The second fine-tuning mechanism comprises a second adjusting screw (41), at least one second screw seat (44), and at least one group of second sliding components that slide in cooperation with each other, the second sliding component being installed between the guide rail mounting plate (31) and the chuck mounting plate (32), the at least one second screw seat (44) being fixed to the bottom surface of the guide rail mounting plate (31) or the top surface of the chuck mounting plate (32), the second adjusting screw (41) being in contact with the second sliding component and having mutually cooperating teeth, so that when the second adjusting screw (41) is rotated, the second sliding component slides relatively therewith; One or two chuck assemblies are mounted on a lifting adjustment mounting plate (12) via a third fine-tuning mechanism, the third fine-tuning mechanism comprising an auxiliary guide rail mounting plate (33) and a lifting screw rod (34), the bottom end of the lifting screw rod (34) being rotatably connected to the auxiliary guide rail mounting plate (33); The lifting and adjusting mounting plate (12) is provided with a mounting hole, a screw nut (35) is inserted into the mounting hole, and the lifting screw (34) passes through the screw nut (35) and can rotate along the thread therein to produce an up-and-down displacement, thereby finely adjusting the position of the chuck assembly as a whole upward or downward; The first fine-adjustment mechanism is connected below the auxiliary guide rail mounting plate (33); A reinforcing rib (13) is provided on the side of the lifting and adjusting mounting plate (12).

2. The double-chuck adjustment device for an EDM machine according to claim 1, characterized in that: The first fine-tuning mechanism comprises two first screw seats (24) and two groups of first sliding components, each group of first sliding components is a first slide rail (22) and a first slider (23) that slide in cooperation with each other, the first slide rail (22) is mounted on the bottom surface of the lifting adjustment mounting plate (12), and the first slider (23) is mounted on the top surface of the guide rail mounting plate (31), or the first slider (23) is mounted on the bottom surface of the lifting adjustment mounting plate (12), and the first slide rail (22) is mounted on the top surface of the guide rail mounting plate (31), the two first screw seats (24) are located between the two groups of first sliding components, the two ends of the first adjustment screw (21) are respectively mounted on the two first screw seats (24), the first adjustment screw (21) is in contact with the first slide rails (22) on both sides and has mutually cooperating teeth, so that when the first adjustment screw (21) is rotated, the first slide rail (22) moves accordingly; The second fine-tuning mechanism comprises two second screw seats (44) and two groups of second sliding components, each group of second sliding components is a second slide rail (42) and a second slider (43) that slide in cooperation with each other, the second slide rail (42) is mounted on the bottom surface of the guide rail mounting plate (31), and the second slider (43) is mounted on the top surface of the chuck mounting plate (32), or the second slider (43) is mounted on the bottom surface of the guide rail mounting plate (31), and the second slide rail (42) is mounted on the top surface of the chuck mounting plate (32), the two second screw seats (44) are located between the two groups of second sliding components, the two ends of the second adjustment screw (41) are respectively mounted on the two second screw seats (44), the second adjustment screw (41) is in contact with the second slide rails (42) on both sides and has mutually cooperating teeth, so that when the second adjustment screw (41) is rotated, the second slide rail (42) moves relatively therewith.

3. The double-chuck adjustment device for an EDM machine according to claim 1 or 2, characterized in that: The bottom of the chuck (321) extends downwardly out of a guide sleeve (51), a transverse rod (52) is passed through the guide sleeve (51), a clamping piece (53) is inserted into a through hole on the guide sleeve (51) to fix one end of the transverse rod (52), and the other end of the transverse rod (52) includes a lateral mounting groove (521), an electrode rod (61) is inserted into the mounting groove (521), and the electrode (62) is located at the bottom of the electrode rod (61).

4. The double-chuck adjustment device for an EDM machine as claimed in claim 1 or 2, characterized in that: The bottom of the clamp (321) is connected to a detachable connector (54), an electrode rod (61) is provided in the bottom of the connector (54), and the electrode (62) is located at the bottom of the electrode rod (61).

5. The double-chuck adjustment device for an EDM machine according to claim 1 or 2, characterized in that: A manual turntable (341) is provided at the top of the lifting screw rod (34), and rotation of the manual turntable (341) drives the lifting screw rod (34) to rotate in the screw rod nut (35). At least one auxiliary telescopic device (36) is also provided between the auxiliary guide rail mounting plate (33) and the lifting adjustment mounting plate (12), and the auxiliary telescopic device (36) has a bottom end connected to the auxiliary guide rail mounting plate (33) and a top end connected to the lifting adjustment mounting plate (12) or a middle portion passing through the lifting adjustment mounting plate (12).

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