A film expanding machine for ceramic parts

Abstract

The present application discloses a film expansion machine for ceramic parts, which relates to the field of semiconductor ceramic parts production equipment, and includes a machine body, a workbench, an upper base, a lower base, and an electric control module for controlling the relative movement of the upper base and the lower base, wherein the lower base includes a central base and a plurality of base rings that are lifted and lowered relative to the work platform, wherein the plurality of base rings are coaxial and sequentially wound around the outside of the central base, and the maximum diameter of the lower base is not greater than the diameter of the upper base; the machine body is also provided with a pressing ring for pressing the blue film on the outside of the lower base, and the pressing ring, the upper base, and the central base are all coaxially arranged, and a fixing device for detachably fixing cutting iron rings of different specifications is provided on the inner side of the pressing ring. The staff can adjust the overall area of ​​the lower base accordingly according to the number / area / specifications of the ceramic parts to be expanded, thereby improving the adaptability of a single film expansion machine to ceramic parts of different numbers / areas / specifications, expanding the film evenly, and improving the efficiency of film expansion.

Description

Technical Field

[0001] The present application relates to the field of semiconductor ceramic component production equipment, and in particular to a film expanding machine for ceramic components. Background Art

[0002] Semiconductor ceramic parts refer to ceramic parts with semiconductor properties that can be used for nonlinear resistors. Common ceramic materials include aluminum nitride or aluminum oxide, which are generally presented as wafer ceramics or crystal ribbon ceramics. The production process of wafer ceramics or crystal ribbon ceramics involves processes such as film pasting, laser film cutting, film removal, film inversion, and film expansion. Among them, film expansion refers to evenly separating closely arranged wafers so that they can be better implanted or welded to the workpiece, which is generally carried out using a film expansion machine.

[0003] In the related art, a Chinese invention patent application document with application publication number CN108807236A discloses a semi-automatic film expanding machine and its film expanding process, which can perform manual film expanding and automatic film expanding, and includes a working platform, a film expanding base that rises and falls relative to the working platform, and a pressing ring that presses the product. Two fixing parts are arranged on the working platform, one of which is connected to the outer periphery of the pressing ring by a stainless steel hinge so that the fixed pressing ring can rotate in a vertical plane, and the other fixing part is provided with a lock buckle, and one end of the pressing ring is provided with an adaptable The lock is tightly engaged with the lock buckle; when expanding the film of the ceramic part, first place the expansion mother and child rings on the base, then spread the expanded blue film to be tested after dicing on the base of the film expander, heat the blue film, and place a cutting iron ring on the blue film so that the center of the iron ring coincides with the center of the base of the film expander, lower the pressure ring to lock the blue film, and then drive the base to rise through the high-precision stepper motor and piezoelectric actuator connected in series to expand the blue film. After the expansion is completed, the base is lowered back to the starting position, the lock is unlocked and the pressure ring is lifted to take out the product to achieve uniform film expansion.

[0004] With respect to the above-mentioned related technologies, the inventors found that: in the process of expanding the film of ceramic wafers by the semi-automatic film expanding machine in the related technology, the expansion range of the blue film is closely related to the pressure ring, the fixing part and the cutting iron ring. When the number / area of ​​ceramic parts to be expanded is large, the staff needs to replace the film expanding machines of different specifications (common ones are 7-inch, 8-inch and 12-inch film expanding machines, etc.) to expand the ceramic parts. A single film expanding machine is difficult to effectively adapt to the film expansion needs of ceramic parts of different numbers / areas / specifications. Summary of the invention

[0005] In order to improve the problem in the related art that a single film expanding machine is difficult to effectively adapt to the film expanding needs of ceramic parts of different quantities / areas / specifications, the present application provides a film expanding machine for ceramic parts.

[0006] The present application provides a film expanding machine for ceramic parts adopts the following technical solution:

[0007] A film expanding machine for ceramic parts, comprising a machine body, a workbench arranged on the machine body, a disc-shaped upper base and a lower base respectively arranged on the machine body and the workbench, and an electric control module for controlling the relative movement of the upper base and the lower base, wherein the lower base comprises a central base and a plurality of base rings which are lifted and lowered relative to the work platform, and the plurality of base rings are coaxial and sequentially wound around the outside of the central base; a pressing ring which is lifted and lowered on the machine body and is used to press a blue film on the outside of the lower base, the pressing ring, the upper base and the central base are all coaxially arranged, and a fixing device for detachably fixing cutting iron rings of different specifications is provided on the inner side of the pressing ring.

[0008] By adopting the above technical scheme, in the process of expanding the film of ceramic wafers (ceramic parts), the staff can select the cutting iron ring of corresponding specifications and diameters according to the number / area / specifications of the ceramic parts, and use the fixing device to detachably fix the cutting iron ring on the inner side of the pressure ring, and make the number of the central base and the base ring match the specifications of the cutting iron ring, so that the central base and the corresponding number of base rings are raised at the same time, and the outer diameter of the lower base is changed, so that the overall area of ​​the lower base can adapt to the number / area / specifications of the ceramic parts to be expanded; then, the staff can lower the upper base accordingly, so that the upper base presses down the cutting iron ring and the lower base, realizes the cutting of the blue film, and completes the film expansion action. Through the combination of the central base and the base ring and the cooperation between the cutting iron ring, the film expander can more conveniently expand or reduce the expansion range of the blue film, thereby improving the adaptability of a single film expander to ceramic parts of different numbers / areas / specifications, increasing the number of ceramic parts that can be expanded during a single operation of the film expander, and improving the film expansion efficiency.

[0009] Optionally, a plurality of mounting grooves are provided on the inner side of the pressure ring, and the fixing device comprises a plurality of clamping claws rotatably connected to the plurality of mounting grooves in a one-to-one correspondence, an angle adjustment mechanism for driving the plurality of clamping claws to rotate in a direction approaching / moving away from the center base and locking the rotation of the plurality of clamping claws, and a driving mechanism for driving the clamping claws to approach or move away from the center base; an electromagnet is provided at the free end of the clamping claw, and the electronic control module controls the power on and off of the electromagnet.

[0010] By adopting the above technical scheme, after selecting the corresponding cutting iron ring according to the number / area / specifications of the ceramic parts, the staff can control the angle adjustment mechanism and the driving mechanism to adjust the angles between the multiple clamping claws and the pressure ring and the distances between the multiple clamping claws and the center of the pressure ring, so that a ring shape that is compatible with the selected cutting iron ring specifications is formed between the multiple clamping claws; further, the electric control module is used to control the power on and off of the electromagnet at the free end of the clamping claw, so that the detachable fixation between the cutting iron ring and the pressure ring can be realized more conveniently, which is convenient for the film expansion machine to cut the blue film.

[0011] Optionally, the angle adjustment mechanism includes multiple groups of adjustment gears corresponding to the end of the clamping claw away from the electromagnet, a rack slidably connected to the pressure ring along the radial direction of the pressure ring, and a control component for controlling the sliding of the rack, and the adjustment gears and the rack are meshed.

[0012] By adopting the above technical solution, a control component is used to drive the rack to slide along the radial direction of the pressure ring, which can drive the clamping claw to rotate more stably, so that the clamping claw can be rotated more stably to an angle that matches the specifications of the cutting iron ring, and the clamping claw can be locked after the rack stops running; thus, the cutting iron ring can be more stably aligned and pressed onto the blue film and the lower base.

[0013] Optionally, the control component includes a hollow bevel gear ring coaxially connected to the pressure ring, multiple sets of bevel gears and screws correspondingly arranged at the ends of multiple clamping claws, and a driving component for driving the hollow bevel gear ring to rotate, the axis of the bevel gear is perpendicular to the axis of the pressure ring, the bevel gear is rotatably connected to the pressure ring along its axis and meshes with the hollow bevel gear ring; the screw is coaxially arranged in the middle of the bevel gear and threadedly connected to the bevel gear, and the rack is fixedly connected to one end of the screw close to the axis of the pressure ring.

[0014] By adopting the above technical solution, the hollow conical gear ring is driven to rotate by a driving component, which can synchronously drive multiple clamping claws to start rotating, thereby more stably and conveniently achieving the adjustment of the angles between the multiple clamping claws and the pressure ring.

[0015] Optionally, the driving mechanism includes a telescopic rod, a telescopic sleeve sleeved on the outside of the telescopic rod, and a linear driving member for driving the telescopic rod to extend into or out of the telescopic sleeve along the axis of the telescopic rod. One end of the telescopic rod away from the telescopic sleeve and one end of the telescopic sleeve away from the telescopic rod are respectively fixedly connected to the adjusting gear and the clamping claw.

[0016] By adopting the above technical solution, using a telescopic rod, a telescopic sleeve, a linear drive member and an angle adjustment mechanism, the clamping range between multiple clamping claws can be adjusted to a larger range within a limited installation groove, so that multiple clamping claws can be more effectively adapted to cutting iron rings of different specifications.

[0017] Optionally, the angle adjustment mechanism and the driving mechanism are electrically connected, and the pressure ring is provided with a reset mechanism for triggering the electric control module to control the clamping claw to move away from the center base when the upper base moves downwardly toward the lower base.

[0018] By adopting the above technical solution, when the upper base approaches the lower base, the reset mechanism is used to trigger the electronic control module to control the clamping claw to move away from the center base, so that the clamping claw retracts into the installation groove, which can avoid the clamping claw from hindering the movement of the upper base between the upper base and the lower base, so that the upper base and the lower base can be docked and fit together.

[0019] Optionally, the reset mechanism includes a pressure block rotatably connected to a side of the mounting groove close to the axis of the pressure ring and an elastic reset member installed in the mounting groove; a pressure sensor electrically connected to the electronic control module is fixedly installed on the inner wall of the pressure ring at the rotation end point of the pressure block corresponding to the mounting groove; when the pressure block is pressed to the rotation end point by the upper base, the electronic control module controls the angle adjustment mechanism and the driving mechanism to drive the clamping claw to retract into the mounting groove according to the pressure signal of the pressure sensor.

[0020] By adopting the above technical solution, after the cutting iron ring is docked with the corresponding center base / base ring on the lower base, the upper base is driven toward the lower base, and the upper base can press the pressing block downward and press the pressing block to the rotation end point of the pressing block; thereby, the pressing block triggers the pressure sensor, the pressure sensor is pressurized and sends its pressure signal to the electronic control module, and the electronic control module derives that the upper base is in a moving state approaching the lower base according to the pressure signal of the pressure sensor, and accordingly automatically controls the angle adjustment mechanism and the driving mechanism to drive the clamping claw away from the center base, without the need for manual operation and control, thereby reducing the deviation that may be caused by the randomness of manual operation.

[0021] Optionally, an annular air cavity is opened in the pressure ring, a number of first air holes connected to the annular air cavity are opened on the side of the pressure ring close to the workbench, and second air holes connected to the annular air cavity are opened through the outer side of the pressure ring, and a fan is provided at the second air hole.

[0022] By adopting the above technical solution, when the pressure ring is in contact with the workbench and presses the blue film, a fan is used to suck the annular air cavity through the second air hole, which can form a negative pressure at the first air hole, thereby enhancing the fixing effect of the pressure ring on the blue film, so that the blue film can be more effectively fixed on the workbench, making it easier for the upper base and the lower base to expand the blue film with ceramic parts more stably and effectively.

[0023] Optionally, the upper base is also provided with a plurality of groups of infrared sensor components for sensing and judging the specifications of the cut iron ring located between the lower base and the upper base. The infrared sensor components emit infrared detection light toward the lower base, and the signal output end of the infrared sensor components is connected to the signal of the electronic control module.

[0024] By adopting the above technical solution, after the cutting iron ring is installed on the pressure ring, the infrared sensor component is controlled to emit infrared detection light toward the lower base, so as to identify and detect the specifications and size of the cutting iron ring; thus, the electronic control module controls the central base and the corresponding number of base rings to rise according to the identification and detection signal of the infrared sensor component, and automatically expands the blue film.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Through the coordination of the central base, base ring, pressure ring and fixing device, the staff can adjust the overall area of ​​the lower base accordingly, so that the overall area of ​​the lower base is adapted to the number / area / specification of the ceramic pieces to be expanded, thereby improving the adaptability of a single film expansion machine to ceramic pieces of different numbers / areas / specifications and improving the expansion efficiency;

[0027] 2. Through the cooperation of the clamping claw, the angle adjustment mechanism, the driving mechanism and the electromagnet, the detachable fixation between the pressing ring and the cutting iron ring can be realized more conveniently and stably;

[0028] 3. By opening the annular air cavity, the first air hole, the second air hole and setting a fan, the pressure ring can stably fix the blue film between the upper base and the lower base during the film expansion process, thereby ensuring the effective film expansion of the film expander. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 This is a partial structural schematic diagram of an embodiment of the present application, which is made to show the matching relationship between the upper base, the pressure ring and the lower base of the embodiment of the present application;

[0031] Figure 3 This is a partial structural diagram of an embodiment of the present application, which is made to show the distribution of infrared sensor components on the base in the embodiment of the present application;

[0032] Figure 4 yes Figure 2 A magnified schematic diagram of part A;

[0033] Figure 5 yes Figure 3 Schematic diagram of the enlarged portion B.

[0034] 1. Body; 2. Workbench; 3. Upper base; 31. Infrared sensor component; 4. Lower base; 41. Center base; 42. Base ring; 5. Pressing ring; 51. Mounting groove; 511. Pressure sensor; 52. Ring groove; 53. Annular wind chamber; 54. First wind hole; 6. Fixing device; 61. Clamping claw; 611. Electromagnet; 62. Angle adjustment mechanism; 621. Adjusting gear; 622. Rack; 623. Hollow conical gear ring; 624. Bevel gear; 625. Screw; 626. Drive gear ring; 627. Drive gear; 628. Drive motor; 63. Drive mechanism; 631. Telescopic rod; 632. Telescopic sleeve; 633. Linear drive member; 64. Reset mechanism; 641. Pressing block; 642. Elastic reset member; 7. Fan. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The embodiment of the present application discloses a film expanding machine for ceramic parts, which relates to the field of semiconductor ceramic parts production equipment.

[0037] Reference Figure 1 and Figure 2 A film expanding machine for ceramic parts comprises a machine body 1 placed vertically on a horizontal plane, a workbench 2 arranged on the machine body 1, a disc-shaped upper base 3 and a lower base 4 respectively arranged on the machine body 1 and the workbench 2, and an electric control module for controlling the relative movement of the upper base 3 and the lower base 4, the upper base 3 and the lower base 4 are parallel to each other, and the maximum diameter of the lower base 4 is not greater than the diameter of the circular surface of the upper base 3 close to the lower base 4; refer to Figure 2 and Figure 3 In order to enable the film expanding machine to more effectively adapt to the film expanding needs of ceramic parts of different quantities / areas / specifications, the lower base 4 in the embodiment of the present application specifically includes a central base 41 and multiple base rings 42 that are lifted and lowered relative to the working platform. The multiple base rings 42 are coaxial and sequentially arranged around the outside of the central base 41. The upper base 3 is vertically lifted relative to the machine body 1 through the cooperation of a high-precision stepping motor, a piezoelectric actuator and an electronic control module. The central base 41 and the multiple base rings 42 correspondingly realize the vertical lifting of the central base 41 and the combination of the central base 41 and the base ring 42 relative to the workbench 2 through a high-precision stepping motor and a piezoelectric actuator; a pressing ring 5 for pressing the blue film on the outside of the lower base 4 is also lifted and lowered on the machine body 1 and located above the workbench 2, and a fixing device 6 for detachably fixing cutting iron rings of different specifications is provided on the inner side of the pressing ring 5.

[0038] Specifically, refer to Figure 2 and Figure 4The cutting iron ring is a mother ring, and the outer sides of the central base 41 and the base ring 42 are provided with embedding grooves suitable for installing a sub-ring that matches the cutting iron ring, and the sub-ring is suitable for being embedded and fixed in the mother ring; the pressing ring 5 is a square ring with an inner circle and an outer square, and a plurality of mounting grooves 51 of the same specifications are distributed in an annular array on the inner side of the pressing ring 5, and the mounting grooves 51 are connected to the inner hole of the pressing ring 5, and the mounting grooves 51 are arranged in an open manner on the side close to the lower base 4.

[0039] The fixing device 6 includes a plurality of clamping claws 61 correspondingly arranged in a plurality of mounting grooves 51, an angle adjustment mechanism 62 arranged on the pressure ring 5 for adjusting the angle between the clamping claw 61 and the pressure ring 5, and a driving mechanism 63 arranged on the pressure ring 5 for cooperating with the angle adjustment mechanism 62 to drive the clamping claw 61 close to or away from the center base 41.

[0040] Specifically, refer to Figure 4 The angle adjustment mechanism 62 includes multiple groups of adjustment gears 621 and racks 622 which are arranged one by one on the side of the multiple clamping claws 61 away from the center of the pressure ring 5, and a control component for driving the adjustment gears 621 and the racks 622 to rotate and change the angle between the clamping claws 61 and the pressure ring 5. In each mounting groove 51, the adjusting gear 621 is located on the side of the clamping claw 61 away from the center of the pressing ring 5. A rotating shaft is coaxially fixedly connected to the middle part of the adjusting gear 621. The axis of the rotating shaft is tangent to a circular line with a radius from its point to the center of the pressing ring 5 and a center of the circle with the center of the pressing ring 5 as the center. The two ends of the rotating shaft are respectively connected to the pressing ring 5 and the clamping claw 61, and one end of the rotating shaft is rotatably connected along its axis to the side wall of the mounting groove 51 on any side along the radial direction of the pressing ring 5, and the other end is fixed to the clamping claw 61; the rack 622 is located between the upper bottom wall of the mounting groove 51 and the adjusting gear 621, and the rack 622 is slidably connected to the pressing ring 5 in the radial direction of the pressing ring 5 and meshes with the rack 622; the control component is used to control the sliding of the rack 622, driving the rack 622 to approach or move away from the center straight line of the pressing ring 5.

[0041] A ring groove 52 for installing a control component is provided in the pressure ring 5, on the side of the mounting groove 51 away from the workbench 2. The ring groove 52 is communicated with the mounting groove 51. The control component specifically includes a hollow conical gear ring 623 coaxially rotatably connected to the pressure ring 5, multiple sets of bevel gears 624 and screw rods 625 corresponding to the ends of multiple clamping claws 61, and a driving component for driving the hollow conical gear ring 623 to rotate.

[0042] Reference Figure 4, multiple sets of bevel gears 624 and screw rods 625 are installed in multiple installation grooves 51 in a one-to-one correspondence, and in each installation groove 51, the axial direction of the bevel gear 624 is consistent with the radial direction corresponding to the pressing ring 5, and the bevel gear 624 is connected to the pressing ring 5 along its axis; the screw rod 625 is coaxially arranged in the middle of the bevel gear 624 and is threadedly connected to the bevel gear 624, and a clearance hole for the screw rod 625 to extend and extend is opened on the pressing ring 5, and the rack 622 is fixedly connected to the screw rod 625 One end is away from the center of the pressing ring 5, and the length direction of the rack 622 and the tooth direction of the rack 622 are consistent with the axis of the screw rod 625; the bevel gear 624 is controlled to rotate along its axis, which can drive the screw rod 625 to slide on the pressing ring 5 along the axis of the bevel gear 624, thereby driving the rack 622 to slide along the radial direction of the pressing ring 5, and then driving the adjusting gear 621 to drive the clamping claw 61 to rotate relative to the pressing ring 5, so as to adjust the angle between the clamping claw 61 and the pressing ring 5.

[0043] The hollow conical gear ring 623 is installed in the annular groove 52, and the side of the hollow conical gear ring 623 close to the workbench 2 is simultaneously meshed with multiple bevel gears 624; the driving component includes a driving gear ring 626, a driving gear 627 and a driving motor 628, the driving gear ring 626 and the driving gear 627 are both located in the annular groove 52, and the driving gear ring 626 is coaxially and fixedly installed on the side of the hollow conical gear ring 623 away from the workbench 2, the driving gear 627 is located on the inner sides of the hollow conical gear ring 623 and the driving gear ring 626, and the driving gear ring 626 is arranged with teeth toward the inner side of the pressure ring 5, the driving gear 627 is meshed with the driving gear ring 626, the driving motor 628 is fixedly installed on the side of the pressure ring 5 away from the workbench 2, and the output shaft of the driving motor 628 passes through the pressure ring 5, extends into the annular groove 52 and is coaxially fixed with the driving gear 627.

[0044] When the driving motor 628 is controlled to drive the driving gear 627 to rotate clockwise, the driving gear 627 can drive the driving gear ring 626 to rotate clockwise, thereby driving the bevel gear 624 to drive the rack 622 toward the center of the pressure ring 5, and the rack 622 correspondingly drives the adjusting gear 621 to drive the clamping claw 61 toward the side close to the workbench 2, thereby expanding the angle between the clamping claw 61 and the upper surface of the pressure ring 5.

[0045] In the embodiments of this application, refer to Figure 2 and Figure 4The driving mechanism 63 specifically includes a telescopic rod 631, a telescopic sleeve 632 sleeved on the outside of the telescopic rod 631, and a linear driving member 633 for driving the telescopic rod 631 to extend into or out of the telescopic sleeve 632 along the axis of the telescopic rod 631. The end of the telescopic sleeve 632 away from the telescopic rod 631 is fixedly connected to the rotating shaft and is fixedly connected to the adjusting gear 621 through the rotating shaft. The end of the telescopic rod 631 away from the telescopic sleeve 632 is fixedly connected to the clamping claw 61; the linear driving member 633 is a linear push rod The motor can also be a linear driving component such as a driving cylinder / oil cylinder in other application embodiments. The linear push rod motor is fixedly installed on the outer wall of the telescopic sleeve 632. The output shaft of the linear push rod motor is fixedly connected to the telescopic rod 631. The linear push rod motor can achieve precise control of the overall length of the telescopic rod 631 extending / retracting the telescopic sleeve 632; starting the linear push rod motor can drive the telescopic rod 631 to extend / retract the telescopic sleeve 632, thereby driving the clamping claw 61 to approach or move away from the center of the pressure ring 5.

[0046] One end of the clamping claw 61 away from the telescopic rod 631 is the free end of the clamping claw 61 , and an electromagnet 611 is fixedly installed at the free end of the clamping claw 61 , and the power on and off of the electromagnet 611 is controlled by the electric control module.

[0047] By cooperating with the telescopic rod 631, the telescopic sleeve 632, the linear drive part 633 and the angle adjustment mechanism 62, and using the electronic control module to control the power on and off of the electromagnet 611 at the free end of the clamping claw 61, it is possible to more conveniently achieve the detachable fixation between the cutting iron ring and the pressing ring 5, and to achieve a larger adjustment of the clamping range between the multiple clamping claws 61 on the inner side of the pressing ring 5, so that the multiple clamping claws 61 can be more effectively adapted to cutting iron rings of different specifications, so that the clamping claws 61 can stably clamp and fix cutting iron rings of different specifications.

[0048] Further, see Figure 3 The upper base 3 is also provided with a plurality of infrared sensing components 31 for sensing and judging the specifications of the cutting iron ring located between the lower base 4 and the upper base 3. The infrared sensing components 31 are specifically infrared distance sensors, which emit infrared detection light toward the lower base 4; and a plurality of infrared distance sensors are provided corresponding to the number of the central base 41 and the base ring 42. The plurality of infrared distance sensors are all connected to the signal of the electronic control module, and assuming that the base ring 42 is N groups, the infrared distance sensor is provided with N+1 groups (the base ring 42 in the present application is preferably two to match the 7-inch, 8-inch and 12-inch blue films, and the central base 41 is 7 inches in size, the lower base 4 formed by the central base 41 and the innermost base ring 42 is 8 inches in size, and the lower base 4 formed by the central base 41 and the two base rings 42 is 12 inches in size).

[0049] When the cutting iron ring is installed on the clamping claw 61, the infrared distance sensor can sense the presence of foreign matter between the upper base 3 and the central base 41 / base ring 42, and send a signal to the electronic control module accordingly. The electronic control module controls the central base 41 and the corresponding number of base rings 42 to rise according to the recognition detection signal of the infrared sensor component 31, and automatically expands the blue film.

[0050] Further, see Figure 3 and Figure 4 The pressing ring 5 is also provided with a reset mechanism 64 for triggering the electric control module to control the clamping claw 61 to move away from the central base 41 when the upper base 3 moves downward toward the lower base 4 .

[0051] The reset mechanism 64 includes a pressure block 641 and an elastic reset member 642 installed in the mounting groove 51, the pressure block 641 is located on the inner side of the pressure ring 5 and is specifically installed on a side wall of the mounting groove 51 away from the workbench 2, and the pressure block 641 is rotatably connected to the pressure ring 5 around a linear direction parallel to the rotating shaft in the middle of the driving gear 627; when the pressure block 641 is located at its rotation starting point, the pressure block 641 protrudes from the inner side of the pressure ring 5 and is suitable for movably abutting against the upper pressure ring 5, and a side surface of the pressure block 641 suitable for movably abutting against the upper pressure block 641 is the abutment surface of the pressure block 641, and at this time, the abutment surface of the pressure block 641 is parallel to the upper base 3; when the pressure block 641 is located at its rotation end point, the pressure block 641 is completely accommodated in the mounting groove 51, and at this time, the abutment surface of the pressure block 641 is perpendicular to the upper base 3.

[0052] Reference Figure 4 and Figure 5 A pressure sensor 511 is fixedly installed on the side wall of the mounting groove 51 away from the workbench 2 and at the rotation end point of the corresponding pressure block 641. The pressure block 641 is movably abutted against the pressure sensor 511 and is connected to the signal of the electronic control module; the elastic reset member 642 is a torsion spring, and the two ends of the elastic reset member 642 are respectively fixed to the pressure block 641 and a side wall of the mounting groove 51 corresponding to the rotation end point of the pressure block 641, and the elastic reset member 642 is used to drive the pressure block 641 away from the pressure sensor 511; when the elastic reset member 642 is in a free state, the pressure block 641 is located at its rotation starting point and protrudes from the inner side wall of the pressure ring 5, and the upper base 3 is suitable for movably abutting against the pressure block 641 and pressing the pressure block 641 to the rotation end point of the pressure block 641.

[0053] Correspondingly, the angle adjustment mechanism 62 and the driving mechanism 63 are also electrically connected to the electronic control module. When the upper base 3 approaches the lower base 4, the reset mechanism 64 is used to trigger the electronic control module to control the clamping claw 61 to move away from the center base 41, so that the clamping claw 61 retracts into the installation groove 51. This can prevent the clamping claw 61 from obstructing the movement of the upper base 3 between the upper base 3 and the lower base 4, so that the upper base 3 and the lower base 4 can be docked and fit each other, which is beneficial to ensuring the film expansion effect of the film expansion machine on the blue film.

[0054] After the cutting iron ring is docked with the corresponding central base 41 / base ring 42 on the lower base 4, the upper base 3 is driven toward the lower base 4, and the upper base 3 can press down the pressure block 641 and press the pressure block 641 to the rotation end point of the pressure block 641; thereby, the pressure block 641 triggers the pressure sensor 511, and the pressure sensor 511 is pressurized and sends its pressure signal to the electronic control module. The electronic control module derives that the upper base 3 is in a moving state approaching the lower base 4 according to the pressure signal of the pressure sensor 511, and accordingly automatically controls the angle adjustment mechanism 62 and the driving mechanism 63 to drive the clamping claw 61 away from the central base 41, without the need for manual operation and control, thereby reducing the deviation that may be caused by the randomness of manual operation.

[0055] Further, see Figure 4 and Figure 5 An annular air cavity 53 is also provided in the pressing ring 5, and the annular air cavity 53 is located at the outside of the mounting groove 51 and at the side of the annular groove 52 close to the workbench 2. A plurality of first air holes 54 connected to the annular air cavity 53 are provided on the side of the pressing ring 5 close to the workbench 2. The plurality of first air holes 54 are distributed in an annular array around the center of the pressing ring 5. A second air hole connected to the annular air cavity 53 is provided on the outside of the pressing ring 5, and a fan 7 is provided at the second air hole.

[0056] When the pressing ring 5 is in contact with the workbench 2 and presses the blue film, the fan 7 is used to suck the annular air cavity 53 through the second wind hole, which can form a negative pressure at the first wind hole 54, thereby enhancing the fixing effect of the pressing ring 5 on the blue film, so that the blue film is more effectively fixed on the workbench 2, and the upper base 3 and the lower base 4 are more stable and effective in expanding the blue film with ceramic parts; at the same time, after the film expansion is completed, the staff can switch the rotation direction of the fan blades of the fan 7, so that the fan 7 switches from the suction state to the blowing state, so that the excess blue film fixed on the pressing ring 5 can be more conveniently separated from the pressing ring 5, which is convenient for improving the overall working efficiency of the film expanding machine and realizing the automatic expansion of the blue film more efficiently.

[0057] The implementation principle of a film expanding machine for ceramic parts in the embodiment of the present application is as follows: when it is necessary to expand the film of a ceramic part, the ceramic part to be expanded and the specifications of the blue film are selected, and the corresponding cutting iron ring and sub-ring are selected, and the sub-ring is placed in the corresponding embedding grooves on the central base 41 and the base ring 42, the cutting iron ring is placed directly above the sub-ring, and the blue film is placed on the central base 41 and the base ring 42, the infrared sensor component 31 can identify the specifications of the cutting iron ring and send a signal to the electric control module accordingly, the electric control module automatically controls the angle adjustment mechanism 62 and the driving mechanism 63 to drive the pressing ring 5 to press down the blue film and fix the blue film with negative pressure, and at the same time drives the clamping claw 61 to approach the cutting iron ring and energize the electromagnet 611 to clamp and fix the cutting iron ring, thereby achieving the adaptation of the number of the central base 41 and the base ring 42, the specifications of the cutting iron ring and the sub-ring, and achieving the fixation of the blue film; then The electric control module drives the central base 41 and the corresponding number of base rings 42 to rise at the same time, changing the outer diameter of the lower base 4, so that the overall area of ​​the lower base 4 can be adapted to the number / area / specification of the ceramic parts to be expanded, and the upper base 3 moves toward the central base 41 accordingly, and the upper base 3 triggers the pressure block 641, so that the electric control module controls the angle adjustment mechanism 62 and the driving mechanism 63 accordingly to drive the clamping claw 61 to retract into the mounting groove 51, and the upper base 3 and the lower base 4 can be effectively docked and the cutting iron ring can completely cover the sub-ring to achieve the expansion and cutting of the blue film; the film expander as a whole can more conveniently expand or reduce the expansion range of the blue film, and a single film expander has a high adaptability to ceramic parts of different numbers / areas / specifications. The number of ceramic parts that can be expanded in a single operation and the range of film expansion required for the ceramic parts can also be effectively matched, thereby improving the film expansion efficiency.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A film expanding machine for ceramic parts, comprising a machine body (1), a workbench (2) arranged on the machine body (1), a disc-shaped upper base (3) and a lower base (4) respectively arranged on the machine body (1) and the workbench (2), and an electric control module for controlling the relative movement of the upper base (3) and the lower base (4), characterized in that: The lower base (4) comprises a central base (41) and a plurality of base rings (42) which are lifted relative to the working platform. The plurality of base rings (42) are coaxial and sequentially arranged around the outside of the central base (41). The machine body (1) is also provided with a pressing ring (5) which is used to press the blue film on the outside of the lower base (4). The pressing ring (5), the upper base (3) and the central base (41) are all coaxially arranged. A fixing device (6) for detachably fixing cutting iron rings of different specifications is provided on the inner side of the pressing ring (5). The inner side of the pressing ring (5) is provided with a plurality of The fixing device (6) comprises a plurality of clamping claws (61) rotatably connected to the plurality of mounting grooves (51) in a one-to-one correspondence, an angle adjustment mechanism (62) for driving the plurality of clamping claws (61) to rotate in a direction approaching / moving away from the center base (41) and locking the rotation of the plurality of clamping claws (61), and a driving mechanism (63) for driving the clamping claws (61) to move closer to or away from the center base (41); an electromagnet (611) is provided at the free end of the clamping claw (61), and the electric control module controls the electromagnet The angle adjustment mechanism (62) includes a plurality of adjustment gears (621) correspondingly arranged at one end of the clamping claw (61) away from the electromagnet (611), a rack (622) slidably connected to the pressing ring (5) along the radial direction of the pressing ring (5), and a control component for controlling the sliding of the rack (622), wherein the adjustment gear (621) and the rack (622) are meshed, and the control component includes a hollow conical gear ring (623) coaxially connected to the pressing ring (5), and a plurality of adjustment gears (621) correspondingly arranged at one end of the clamping claw (61) away from the electromagnet (611). 1) multiple sets of bevel gears (624) and screw rods (625) at the end and a driving component for driving the hollow bevel gear ring (623) to rotate, the axis of the bevel gear (624) being perpendicular to the axis of the pressing ring (5), the bevel gear (624) being rotatably connected to the pressing ring (5) along its axis and meshing with the hollow bevel gear ring (623); the screw rod (625) being coaxially arranged in the middle of the bevel gear (624) and being threadedly connected to the bevel gear (624), and the rack (622) being fixedly connected to one end of the screw rod (625) close to the axis of the pressing ring (5).

2. A film expanding machine for ceramic parts according to claim 1, characterized in that: The driving mechanism (63) comprises a telescopic rod (631), a telescopic sleeve (632) sleeved on the outside of the telescopic rod (631), and a linear driving member (633) for driving the telescopic rod (631) to extend into or out of the telescopic sleeve (632) along the axis of the telescopic rod (631); an end of the telescopic rod (631) away from the telescopic sleeve (632) and an end of the telescopic sleeve (632) away from the telescopic rod (631) are respectively fixedly connected to the adjusting gear (621) and the clamping claw (61).

3. A film expanding machine for ceramic parts according to claim 1, characterized in that: The angle adjustment mechanism (62) and the driving mechanism (63) are both electrically connected, and the pressing ring (5) is provided with a reset mechanism (64) for triggering the electric control module to control the clamping claw (61) to move away from the central base (41) when the upper base (3) moves downwardly toward the lower base (4).

4. A film expanding machine for ceramic parts according to claim 3, characterized in that: The reset mechanism (64) comprises a pressure block (641) rotatably connected to one side of the mounting groove (51) close to the axis of the pressure ring (5) and an elastic reset member (642) installed in the mounting groove (51); a pressure sensor (511) electrically connected to the electric control module is fixedly installed on the inner wall of the pressure ring (5) at the rotation end point of the pressure block (641) in the mounting groove (51); when the pressure block (641) is pressed to the rotation end point by the upper base (3), the electric control module controls the angle adjustment mechanism (62) and the driving mechanism (63) to drive the clamping claw (61) to retract into the mounting groove (51) according to the pressure signal of the pressure sensor (511).

5. A film expanding machine for ceramic parts according to any one of claims 1 to 4, characterized in that: An annular air cavity (53) is provided in the pressing ring (5), a plurality of first air holes (54) connected to the annular air cavity (53) are provided on a side of the pressing ring (5) close to the workbench (2), and second air holes connected to the annular air cavity (53) are provided on the outside of the pressing ring (5), and a fan (7) is provided at the second air holes.

6. A film expanding machine for ceramic parts according to any one of claims 1 to 4, characterized in that: The upper base (3) is also provided with a plurality of infrared sensor components (31) for sensing and judging the specifications of the cut iron ring located between the lower base (4) and the upper base (3); the infrared sensor components (31) emit infrared detection light toward the lower base (4); and the signal output end of the infrared sensor components (31) is connected to the signal of the electric control module.

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