Rapid calibration and clamping transportation system

Abstract

The invention relates to a rapid calibration and clamping transportation system which comprises an operation platform, a feeding calibration device, a discharging device, a transportation device and a machined part tray. The feeding calibration device comprises a pneumatic reference chuck, a feeding track and a lifting mechanism connected to the feeding table top and the feeding track, and the lifting mechanism can lift the feeding track to the feeding height or lower the feeding track to the calibration height. The conveying device is provided with a conveying mechanism and a conveying track capable of being moved by the conveying mechanism. The workpiece tray is provided with a bearing seat and a magnetic chuck, and two opposite sides and the bottom end of the bearing seat are respectively provided with a transmission wing plate and a positioning part. When the workpiece tray is placed on the feeding rail, the lifting mechanism is lowered from the feeding height to the calibration height, and then the pneumatic reference chuck adsorbs the positioning part in a vacuum mode, so that a machining error of the workpiece tray can be accurately corrected by the pneumatic reference chuck.

Description

Technical Field

[0001] The present invention relates to a calibration and transportation system before fastener mold processing, and in particular to a rapid calibration and clamping transportation system capable of automatically completing error correction and accurately transporting the fastener mold to an electric discharge machining device. Background Art

[0002] Electrical Discharge Machining (EDM) is mainly used for superhard materials and complex-shaped workpieces that are difficult to process by general cutting methods, such as complex contour or cavity processing of steel and alloy materials. The metal surface of the processed object is eliminated at high temperature through the rapid periodic voltage pulses between the tool electrode and the processed object.

[0003] At present, electrode discharge is an increasingly common technical solution for processing various fixture products. As competition among enterprises becomes increasingly fierce, manufacturers have higher and higher quality requirements for EDM and shorter lead times for fixture processing. Only by transforming the entire production equipment from manual individual processing to automated continuous processing can the entire processing operation (CAM→NC→EDM) be smoother and the process errors and abnormalities can be reduced. Therefore, how to automate the production process to improve efficiency has become an inevitable trend for enterprises. Summary of the invention

[0004] The main purpose of the present invention is to provide a rapid calibration and clamping and transportation system for use in precision mold processing, so that after the mold to be processed is positioned on the workpiece tray, the position of the workpiece tray can be accurately calibrated through lifting and lowering actions, allowing subsequent precision processing equipment to accurately process the mold to be processed.

[0005] A secondary purpose of the present invention is to arrange the feed track, the transmission track and the discharge track on the working platform in a straight line in sequence, so that the workpiece tray can be moved from one of the three to another. When the operator finds that the mold processing does not meet the standards, he can still return from the discharge track to the transmission track so that the precision processing equipment can reprocess it.

[0006] To achieve the above-mentioned purpose, the present invention provides a rapid calibration and clamping transportation system, comprising: a work platform, a material feeding calibration device, a material discharging device, at least one transportation device and a workpiece tray. The work platform has a material feeding table, a material discharging table and a transmission base located between the material feeding table and the material discharging table.

[0007] The feed calibration device includes: a pneumatic reference chuck, a feed track and a lifting mechanism: the pneumatic reference chuck is arranged at a calibration position on the feed table; the feed track has two feed track parts extending along an X-axis direction, and the two feed track parts are respectively arranged on opposite sides of the pneumatic reference chuck; the lifting mechanism is connected between the feed track and the feed table, and can selectively lift the two feed track parts to a feed height, and then lower the two feed track parts from the feed height to a calibration height.

[0008] The discharging device has a discharging track matched with the feeding track, and the discharging track has two discharging track parts extending along the X-axis direction.

[0009] The at least one transport device has a transport mechanism that can move back and forth along a Y-axis direction and a transmission track extending along the X-axis direction. The transmission track can be moved by the transport mechanism from a feeding position that cooperates with the feeding track and the discharging track to a processing position, and then moved from the processing position back to the feeding position.

[0010] The workpiece pallet has a supporting seat and a magnetic suction cup arranged above the supporting seat. The supporting seat is provided with a transmission wing plate on opposite sides of the Y-axis, and a positioning portion is formed at a bottom end of the supporting seat. The magnetic suction cup can magnetically absorb a mold to be processed.

[0011] When the workpiece tray will be placed on the feed track, the two transmission wings will contact the two feed track parts respectively; then, the lifting mechanism will descend from the feed height to the calibration height, allowing the pneumatic reference chuck to vacuum absorb the positioning part, so that a processing error of the workpiece tray can be accurately corrected by the pneumatic reference chuck.

[0012] In addition, the workpiece tray can be moved along the X-axis from one of the infeed track, the transfer track, and the outfeed track to another one of the infeed track, the transfer track, and the outfeed track.

[0013] When the magnetic chuck is not powered on, it will firmly adsorb the mold to be processed, so that the mold to be processed is fixed on the magnetic chuck; when the magnetic chuck is powered on, it will not be able to adsorb the processing object, so that the mold to be processed can be separated from the magnetic chuck.

[0014] In a preferred embodiment, the transmission wing plate has a connection portion fixed to the bearing seat and a support portion contacting the feed track member, and the support portion has an outer concave track and an inner concave track. The feed track and the discharge track both have an outer wall portion to support the outer concave track, and the transmission track has an inner wall portion to support the inner track.

[0015] The support portion further has an alignment hole located between the outer concave rail and the inner concave rail, and the transmission track is further provided with a positioning protrusion, so that the workpiece tray can be positioned at a fixed position of the transmission track.

[0016] The feed calibration device further includes a metering mechanism, which is arranged on the feed table and has a reference probe ball to detect the level of the mold to be processed placed on the magnetic suction cup.

[0017] The at least one transport device further includes a sensor installed on the transfer track for detecting whether the workpiece tray is moved above the transfer track.

[0018] The bearing seat is further provided with a clamping lug on opposite sides of the X-axis, and the clamping lug can be clamped by a robot arm at the processing position to be moved to a precision processing device. A fixture plate is further provided between the bearing seat and the magnetic chuck.

[0019] The feature of the present invention is that the feed calibration device is provided on the feed table, so that the workpiece tray can automatically complete the precise correction of the position and ensure the level of the object on the feed table, and the track on the entire working platform is arranged in a straight line, so that the workpiece tray can be moved according to different situations. If the mold to be processed still does not meet the accuracy standard, it can be returned to the precision processing equipment through the transmission track and processed again to the accuracy standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the rapid calibration and clamping transport system of the present invention;

[0021] Figure 2 It is a three-dimensional diagram of the feed calibration device of the present invention;

[0022] Figure 3 for Figure 2 Exploded diagram of

[0023] Figure 4 is an enlarged view of the transport device of the present invention;

[0024] Figure 5 A three-dimensional diagram of a workpiece tray of the present invention;

[0025] Figure 6 for Figure 5 sectional view of

[0026] 7A to 7D It is a schematic diagram of the workpiece tray being placed on the feed calibration device for precise calibration;

[0027] FIG. 8A to FIG. 8G A schematic diagram of the workpiece pallet moving sequentially on the work platform;

[0028] Fig. 9 Schematic diagram of the workpiece tray returning from the unloading table to the transfer base.

[0029] Explanation of reference numerals: 1-working platform; 11-feeding table; 12-discharging table; 13-transmission base; 2-feeding calibration device; 21-pneumatic reference chuck; 22-feeding track; 221-feeding track member; 222-groove; 223-outer wall; 23-lifting mechanism; 231-pneumatic cylinder; 232-lifting rod; 24-metering mechanism; 241-reference probe ball; 3-discharging device; 31-discharging track; 311-discharging track member; 312-outer wall; 4-transportation device; 41-transportation mechanism; 411-transportation track Road; 412-transport platform; 42-transmission track; 421-inner wall; 422-positioning convex point; 5-workpiece tray; 51-carrying seat; 511-transmission wing plate; 512-clamping lug; 513-positioning part; 514-connecting part; 515-supporting part; 516-wall; 517-outer concave rail; 518-inner concave rail; 519-alignment hole; 52-magnetic suction cup; 53-jig plate; 6-mold to be processed; 7-mechanical arm; H1-feeding height; H2-calibration height; P1-feeding position; P2-position to be processed. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with specific embodiments and drawings, and the advantages and features of the present invention will become more apparent as the description proceeds.

[0031] The rapid calibration and clamping and transporting system of the present invention is mainly used to cooperate with multiple EDM machines, a material warehouse, a clamping rack and a cleaning machine to form an automated EDM equipment (not shown). Figure 1 As shown, the system comprises: a working platform 1, a material input calibration device 2, a material output device 3, two transport devices 4 and a workpiece tray 5.

[0032] The working platform 1 has a material feeding table 11, a material discharging table 12 and a transmission base 13 located between the material feeding table 11 and the material discharging table 12, wherein the material feeding table 11, the transmission base 13 and the material discharging table 12 are arranged in sequence along an X-axis direction, and the transmission base 13 extends along a Y-axis direction to form a long frame whose length is greater than that of the material feeding table 11 and the material discharging table 12.

[0033] The feed calibration device 2 is disposed on the feed table 11. When the workpiece tray 5 is placed on the feed calibration device 2, the position error of the workpiece tray 5 can be accurately corrected. Figure 2 and Figure 3 As shown, the feed calibration device 2 includes: a pneumatic reference chuck 21, a feed track 22, a lifting mechanism 23 and a metering mechanism 24: wherein the pneumatic reference chuck 21 is arranged at a calibration position above the feed table 11; the feed track 22 has two feed track members 221 extending along an X-axis direction, and the two feed track members 221 are respectively arranged on opposite sides of the pneumatic reference chuck 21, as shown in the figure, a groove 222 is formed in the center of the bottom of the two feed track members 221; the lifting mechanism 23 has two mounted on the feed table The pneumatic cylinder 231 below 11, and the two pneumatic cylinders 231 have a lifting rod 232 passing through the feeding table 11, and are connected to the groove 222 of the feeding track member 221 by the lifting rod 232, the lifting mechanism 23 can selectively lift the two feeding track members 221 to a feeding height H1 or synchronously lower them to a calibration height H2; the meter mechanism 24 is arranged above the feeding table 11, and is adjacent to one end of the two feeding track members 221, and the meter mechanism 24 has a reference probe ball 241 to detect the horizontality of a mold 6 to be processed.

[0034] Please refer to Figure 1 As shown, the discharge device 3 has a discharge track 31, and the discharge track 31 has two discharge track parts 311 extending along the X-axis direction, and the two discharge track parts 311 are located at the extension position of the two feed track parts 221, so that the discharge track part 311 and the feed track part 221 are located on the same axis line.

[0035] See also Figure 4 As shown, the two transport devices 4 are sequentially arranged in parallel along the X-axis direction. Figure 1As shown, the transport device 4 has a transport mechanism 41, two transport rails 42 extending along the X-axis direction and a sensor (not shown in the figure), the transport mechanism 41 has a transport rail 411 that can extend along the Y-axis direction and a transport platform 412 installed on the transport rail 411, and the transport platform 412 can be moved back and forth along the Y-axis direction through the transport rail 411; the two transport rails 42 are installed on the transport platform 412, so that the two transport rails 42 can be moved by the transport mechanism 41 from a feeding position P1 that cooperates with the feeding rail 22 and the discharging rail 31 to a waiting position P2, and then the two transport rails 42 and the transport platform 412 can return from the waiting position P2 to the feeding position P1; the sensor is installed on the outside of the transport rail 42, and detects whether an object is moved above the transport rail 42 toward the inside.

[0036] See also Figure 5 and Figure 6 As shown, the workpiece tray 5 has a bearing seat 51, a magnetic suction cup 52 arranged above the bearing seat 51, and a fixture plate 53 connected between the bearing seat 51 and the magnetic suction cup 52. As shown in the figure, the bearing seat 51 is provided with a transmission wing plate 511 on two opposite sides of the Y-axis direction, and is provided with a transmission wing plate 511 on two opposite sides of the X-axis direction. Figure 7C ) is clamped by a clamping lug 512, and a positioning portion 513 is formed at a bottom end of the supporting base 51.

[0037] The magnetic suction cup 52 is used to magnetically absorb the mold 6 to be processed, wherein the magnetic suction cup 52 will firmly absorb the mold 6 to be processed when it is not powered on, so that the mold 6 to be processed is fixed on the magnetic suction cup 52; when the magnetic suction cup 52 is powered on, it will not be able to absorb the mold 6 to be processed, so that the mold 6 to be processed can be separated from the magnetic suction cup 52.

[0038] See also Figure 6 As shown, in a preferred embodiment, the transmission wing plate 511 has a connecting portion 514 fixed to the supporting seat 51, a supporting portion 515 contacting the feeding track member 221, and a wall portion 516 connected between the connecting portion 514 and the supporting portion 515, and the supporting portion 515 has an outer concave rail 517, an inner concave rail 518, and an alignment hole 519 located between the outer concave rail 517 and the inner concave rail 518.

[0039] Please refer to Figure 1As shown, the transmission track 42 is not located at the axis of the feed track 22, but is parallel to the feed track 22 and the discharge track 31. Therefore, the feed track 22 and the discharge track 31 are supported by an outer wall portion 223, 312 to support the outer concave rail 517, while the transmission track 42 is supported by an inner wall portion 421 to support the inner rail 518. In addition, a positioning convex point 422 is provided on each of the two transmission tracks 42, so that the workpiece tray 5 can be positioned at a fixed position of the transmission track 42 through the cooperation of the alignment hole 519 and the positioning convex point 422.

[0040] See also 7A to 7C As shown, when the workpiece tray 5 is placed from above the feed calibration device 2 to the feed track 22, the two transmission wings 511 will contact the two feed track members 221 respectively. Figure 6 C, then, the lifting mechanism 23 is activated to lower the workpiece tray 5 from the feeding height H1 to the calibration height H2; during the height lowering process, the positioning portion 513 of the support seat 51 will contact the pneumatic reference chuck 21, and the positioning portion 513 will be vacuum-absorbed by the pneumatic reference chuck 21, so that a machining error of the workpiece tray 5 can be accurately corrected by the pneumatic reference chuck 21. Please refer to Fig.7D As shown, when the error of the workpiece tray 5 is calibrated, the lifting mechanism 23 will return from the calibration height H2 to the feeding height H1; at this time, the reference probe ball 241 of the metering mechanism 24 will contact the mold 6 to be processed, so that the mold 6 to be processed can be kept horizontal (not shown).

[0041] See also FIG. 8A to FIG. 8C As shown, the workpiece tray 5 will move from the feeding track 22 toward the transfer track 42 of one of the transport devices 4; the workpiece tray 5 will continue to move until the alignment hole 519 of the support portion 515 overlaps the positioning protrusion 522 of the transfer track 42; the workpiece tray 5, the transfer track 42 and the transport platform 412 will move from the feeding position P1 at one end to the processing position P2 at the rear end, so that the workpiece tray 5 enters a clamping area of ​​the robot arm 7. Fig.8D As shown, the robot arm 7 will clamp the clamping lug 512 of the workpiece tray 5 and move the workpiece tray 5 to one of the multiple electrical discharge machines.

[0042] See also Figures 8E to 8GAs shown, after the mold 6 to be processed completes the discharge machining operation, the workpiece pallet 5 is moved by the robot arm 7 to another transport device 4. At this time, the transport platform 412 of the other transport device 4 is already waiting at the processing position P2; the workpiece pallet 5 is placed on the transmission track 42, and then the other transport device 4 moves the workpiece pallet 5 from the processing position P2 back to the feeding position P1; when the workpiece pallet 5 is moved to the feeding position P1 of another transport device 4, the workpiece pallet 5 will be moved from the transmission track 42 to the discharging track 31, so that the staff can check the accuracy of the mold 6 to be processed on the workpiece pallet 5.

[0043] See also Fig. 9 As shown, when the shape of the mold 6 to be processed has errors or insufficient precision, the workpiece tray 5 can return from the discharge track 31 to the transfer track 42 along the X-axis, so that the workpiece tray 5 can be moved back to the electric discharge machine for processing, thereby improving the processing yield of the mold 6 to be processed.

[0044] It can be seen from the aforementioned steps that the workpiece tray 5 of the present invention can move from one of the feed track 22 , the transfer track 42 and the discharge track 31 to another one of the feed track 22 , the transfer track 42 and the discharge track 31 .

[0045] The above description is only illustrative of the present invention, and not restrictive. A person skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A rapid calibration and clamping transport system, characterized in that: Include: A working platform having a material input platform, a material output platform and a transmission base located between the material input platform and the material output platform; A feed calibration device, comprising: A pneumatic reference chuck is arranged at a calibration position on the feed table; A feeding track having two feeding track members extending along an X-axis direction, and the two feeding track members are respectively arranged on opposite sides of the pneumatic reference chuck; A lifting mechanism is connected between the feed track and the feed table, and can selectively lift the two feed track members to a feed height, and then lower the two feed track members from the feed height to a calibration height; A discharging device, comprising a discharging track matching the feeding track, wherein the discharging track comprises two discharging track members extending along the X-axis direction; At least one transport device, having a transport mechanism capable of reciprocating along a Y-axis direction and a transmission track extending along the X-axis direction, wherein the transmission track can be moved by the transport mechanism from a feeding position matched with the feeding track and the discharging track to a waiting position, and then moved from the waiting position back to the feeding position; A workpiece tray, comprising a bearing seat and a magnetic chuck arranged above the bearing seat, wherein the bearing seat is provided with a transmission wing plate on opposite sides of the Y axis, and a positioning portion is formed at a bottom end of the bearing seat, and the magnetic chuck can magnetically absorb a mold to be processed; Among them, the workpiece tray will be placed on the feed track so that the two transmission wings contact the two feed track parts respectively; the lifting mechanism will descend from the feed height to the calibration height, and the pneumatic reference chuck will vacuum absorb the positioning part, so that a processing error of the workpiece tray can be accurately corrected by the pneumatic reference chuck.

2. The rapid calibration and clamping transport system according to claim 1, characterized in that: The workpiece tray can be moved along the X-axis from one of the infeed track, the transfer track, and the outfeed track to another one of the infeed track, the transfer track, and the outfeed track.

3. The rapid calibration and clamping transport system according to claim 1, characterized in that: The transmission wing plate has a connecting portion fixed to the bearing seat and a supporting portion contacting the feeding track member, and the supporting portion has an outer concave track and an inner concave track.

4. The rapid calibration and clamping transport system according to claim 3, characterized in that: The support portion further has an alignment hole located between the outer concave rail and the inner concave rail, and the transmission track is provided with a positioning protrusion, so that the workpiece tray can be positioned at a fixed position of the transmission track.

5. The rapid calibration and clamping transport system according to claim 1, characterized in that: The infeed track and the outfeed track both have an outer wall portion to carry the outer concave track, and the transmission track has an inner wall portion to carry the inner track.

6. The rapid calibration and clamping transport system according to claim 1, characterized in that: The feed calibration device also includes a metering mechanism, which is arranged on the feed table and has a reference probe ball to detect the level of the mold to be processed placed on the magnetic suction cup.

7. The rapid calibration and clamping transport system according to claim 1, characterized in that: The at least one transport device further comprises a sensor installed on the transport track for detecting whether the workpiece tray is moved above the transport track.

8. The rapid calibration and clamping transport system according to claim 1, characterized in that: When the magnetic chuck is not powered on, it will firmly adsorb the mold to be processed, so that the mold to be processed is fixed on the magnetic chuck; when the magnetic chuck is powered on, it will not be able to adsorb the mold to be processed, so that the mold to be processed can be separated from the magnetic chuck.

9. The rapid calibration and clamping transport system according to claim 1, characterized in that: The bearing seat is provided with a clamping lug on opposite sides of the X-axis respectively, and the clamping lug can be clamped by a robot arm at the processing position to be moved to a precision processing equipment.

10. The rapid calibration and clamping transport system according to claim 1, characterized in that: A fixture plate is also provided between the bearing seat and the magnetic chuck.

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