Multi-angle reversible clamping platform for mold processing

Abstract

The application discloses a kind of multi-angle reversible clamping platform for mould processing in the technical field of mould clamping equipment, including mounting seat, two bearing frames symmetrically arranged on mounting seat, and the reversible frame between two bearing frames, the reversible frame is rotatably connected with bearing frame by pivot one, pivot two is rotatably inserted on the reversible frame two sides symmetrically, the inner end of pivot two is equipped with clamping mechanism, and air pressure auxiliary locking mechanism is equipped on pivot two and pivot one.The application can realize the clamping of the mould to be processed and flexible adjustment of processing angle, once clamping, no need for secondary positioning, improve the flexibility and efficiency of mould processing, in addition, by independently setting the air pressure auxiliary locking mechanism with same structure on pivot one and pivot two, the friction plate and friction piece can be tightly pressed immediately by pneumatic driving mode after the mould is quickly adjusted to any space angle, avoid drift or rebound, ensure processing precision and stability.

Description

Technical Field

[0001] This invention relates to the field of mold clamping equipment, and more specifically to a multi-angle flip-up clamping platform for mold processing. Background Technology

[0002] Clamping platforms, as auxiliary equipment in mold processing, are widely installed on various CNC machining centers to clamp molds and adjust their processing angles.

[0003] Existing clamping platforms typically have the function of clamping and rotating the mold to be processed to adjust its angle. However, after the mold is adjusted to the required angle, most lack a locking mechanism to securely maintain this posture. They often rely solely on the braking of the motor driving the rotation to maintain the angle. Therefore, when subjected to continuous and variable cutting forces and vibrations during actual processing, the adjusted angle is prone to drift or springback, resulting in compromised processing accuracy and potentially causing tool damage or mold scrapping. To address this, we propose a multi-angle flip-up clamping platform for mold processing. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-angle flip-up clamping platform for mold processing. It solves the technical problem that existing clamping platforms cannot lock the mold after it is adjusted to the required angle. They often rely solely on the braking of the motor that drives the rotation to maintain the angle. Therefore, when subjected to continuous and variable cutting forces and vibrations in actual processing, the adjusted angle is prone to drift or springback, resulting in the inability to guarantee processing accuracy and may even cause tool damage or scrapping of the mold to be processed.

[0005] The present invention achieves the above objectives through the following technical solutions: A multi-angle flip-up clamping platform for mold processing includes a mounting base, two support frames symmetrically arranged on the mounting base, and a flip frame disposed between the two support frames. The flip frame is rotatably connected to the support frames via a first rotating shaft. A second rotating shaft is symmetrically inserted into both sides of the flip frame. The axes of the second rotating shaft and the first rotating shaft are perpendicular to each other. The inner end of the second rotating shaft is provided with a clamping mechanism for clamping the mold to be processed. Both the second rotating shaft and the first rotating shaft are provided with pneumatic assisted locking mechanisms with the same structure. The pneumatic-assisted locking mechanism includes a mounting cylinder on a second or first rotating shaft, a friction component fixedly disposed inside the mounting cylinder, a friction plate axially movable inside the mounting cylinder and corresponding to the friction component, and a pneumatic drive unit for driving the friction plate to press against or disengage from the friction component. The pneumatic drive unit is connected to an external air source through a pipeline.

[0006] A further improvement is that the clamping mechanism includes a movable part slidably sleeved on the outer wall of the second rotating shaft, a pressure plate disposed on the movable part for contacting the mold to be processed, and a telescopic device disposed on the flipping frame for driving the movable part to move axially relative to the second rotating shaft.

[0007] A further improvement is that the support frame is provided with a rotating device 1 for driving the corresponding rotating shaft 1 to rotate, and the flipping frame is provided with a rotating device 2 for driving the rotating shaft 2 to rotate.

[0008] A further improvement is that the output end of the pneumatic drive unit is connected to a connecting frame, the connecting frame is provided with a connecting rod, the outer wall of the connecting rod is movably fitted with a connecting seat, the outer wall of the connecting rod is provided with a protrusion for fitting against the outer side of the connecting seat, one end of the connecting rod extends to the center of the friction plate and slides to connect with the inner wall of the friction plate, the connecting seat is connected to the friction plate through several sets of elastic telescopic rods, and a detection sensor for connecting with the connecting seat is embedded on the protrusion. The detection sensor is used to detect the contact pressure between the friction plate and the friction element, and controls the pneumatic drive unit to stop when the contact pressure reaches a preset threshold.

[0009] A further improvement is that a blind hole is provided on one side of the friction element for the connecting rod to enter and for storing the fluid medium. A piston body driven by the connecting rod is movably installed in the blind hole. The piston body is connected to the bottom of the blind hole by an elastic element. A flow-dividing cavity communicating with the blind hole is provided in the friction element. Several sets of grooves communicating with the flow-dividing cavity are provided on the side of the friction element facing the friction plate. A matching locking pin is movably installed in each groove. The locking pin and the bottom of the groove are connected by an elastic element. A locking hole for the locking pin to be inserted is provided on the friction plate. When the connecting rod drives the piston body, the fluid medium in the blind hole is pressurized and transmitted to each groove through the diversion cavity, driving the locking pin to extend.

[0010] A further improvement is that the pneumatic-assisted locking mechanism includes a pneumatic cylinder, a piston component 1 axially movable inside the pneumatic cylinder, and an elastic component 3 connecting the piston component 1 to the inner wall of the pneumatic cylinder. The piston rod of the piston component 1 is connected to a connecting frame, and one end of the pneumatic cylinder is connected to an external air source through a pipeline.

[0011] A further improvement is that a bracket is provided inside the pneumatic cylinder and on one side of the piston component. A lead screw is threaded into the bracket. One end of the lead screw is provided with a ball for sliding contact with the piston component, and the other end is provided with a rack. The rack meshes with a gear component. The shaft of the gear component passes through the side wall of the pneumatic cylinder and extends into an indicator seat fixedly installed on the outer wall of the pneumatic cylinder. An indicator mark is provided on the outer wall of the end of the shaft located inside the indicator seat. A scale bar that cooperates with the indicator mark is provided inside the indicator seat.

[0012] A further improvement is that an adjusting ring is rotatably provided on the inner wall of the indicator seat, and a fixing member for fixing the adjusting ring to the indicator seat is inserted into the outer wall of the indicator seat. A contact sensor for contacting the indicator is provided on the inner wall of the adjusting ring, and the contact sensor controls the external alarm device to work after contacting the indicator.

[0013] A further improvement is that a liquid guide tube is provided on one side of the air pressure cylinder, and a piston component two is provided inside the liquid guide tube. The piston component two is connected to the inner wall of the liquid guide tube through an elastic component four. One end of the piston rod of the piston component two passes through the air pressure cylinder and is connected to a magnetic block one. A magnetic block two for adsorbing the magnetic block one is provided on the piston of the piston component one. The liquid guide tube is connected to an oil storage tank for storing lubricating oil through a one-way liquid inlet pipe. The liquid guide tube is also connected to an atomizing nozzle through a one-way liquid outlet pipe. The atomizing nozzle is embedded in the inner wall of the mounting cylinder and located on one side of the friction component. The liquid outlet end of the atomizing nozzle faces the side of the friction component corresponding to the friction plate. The one-way liquid outlet pipe is also connected to the air pressure cylinder through a one-way air outlet pipe.

[0014] A further improvement is that the mounting base is provided with several sets of mounting holes.

[0015] The beneficial effects of this invention are as follows: This invention, through a mounting base, a support frame, a first rotating shaft, a flipping frame, a second rotating shaft, and a clamping mechanism, enables the clamping of the mold to be processed and the flexible adjustment of the processing angle. It allows for one-time clamping without secondary positioning, improving the flexibility and efficiency of mold processing. It is suitable for precision machining scenarios such as small mold cores and multi-angled parts. Furthermore, by independently setting identical pneumatic-assisted locking mechanisms on both the first and second rotating shafts, the friction plates and friction components can be tightly pressed together via pneumatic drive immediately after the mold is quickly adjusted to any spatial angle, achieving efficient locking. This effectively resists cutting forces and vibrations during processing, preventing drift or springback and ensuring processing accuracy and stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the clamping platform structure of the present invention; Figure 2 This is a top view of the clamping platform structure of the present invention; Figure 3 This is a schematic diagram of the clamping mechanism structure of the present invention; Figure 4 This is a schematic diagram of the pneumatic-assisted locking mechanism of the present invention; Figure 5 This is a cross-sectional view of the pneumatic-assisted locking mechanism of the present invention; Figure 6 This is a cross-sectional view of the pneumatic drive unit structure in this invention; Figure 7 For the present invention Figure 4 Enlarged view of structure A in the image.

[0017] In the diagram: 1. Mounting base; 2. Bearing frame; 3. Rotating shaft one; 4. Rotating device one; 5. Tilting frame; 6. Rotating shaft two; 7. Rotating device two; 8. Clamping mechanism; 81. Moving part; 82. Telescopic device; 83. Pressure plate; 9. Pneumatic assisted locking mechanism; 91. Mounting cylinder; 92. Friction component; 93. Friction plate; 94. Elastic telescopic rod; 95. Connecting seat; 96. Connecting frame; 97. Connecting rod; 98. Pneumatic cylinder; 99. Piston body; 910. Elastic component one; 911. Locking pin; 912. Piston component one; 913. Lead screw; 914. Rack; 915. Indicator seat; 916. Indicator mark; 917. Adjusting ring; 918. Contact sensor; 919. Liquid guide tube; 920. Magnetic block one; 921. Piston component two; 922. Atomizing nozzle; 923. Detection sensor. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1

[0020] Please see the appendix Figure 1-2 A multi-angle flip-up clamping platform for mold processing. In this embodiment, the clamping platform can be directly installed on a conventional CNC machining center workbench. Each of its internal electrical actuators can be connected to the machining center's own CNC control system and receive its programmed instructions, thereby realizing the integration of automated processing flow. The clamping platform includes a mounting base 1, two support frames 2 symmetrically arranged on the mounting base 1, and a flipping frame 5 disposed between the two support frames 2; The flipping frame 5 is rotatably connected to the support frame 2 via a rotating shaft 3. In this embodiment, there are two sets of rotating shafts 3. The two sets of rotating shafts 3 are fixed to the middle of the side wall of the flipping frame 5, and the other ends of the two sets of rotating shafts 3 are movably inserted into the two support frames 2. A bearing is provided at the connection between the rotating shaft 3 and the support frame 2. Rotating shafts 6 are symmetrically inserted on both sides of the flipping frame 5. A bearing is provided at the connection between the rotating shaft 6 and the flipping frame 5. The axes of rotating shaft 6 and rotating shaft 3 are perpendicular to each other. A clamping mechanism 8 for clamping the mold to be processed is provided at the inner end of rotating shaft 6. A pneumatic auxiliary locking mechanism 9 with the same structure is provided on both rotating shaft 6 and rotating shaft 3. Specifically, the pneumatic auxiliary locking mechanism 9 is provided at the outer end of rotating shaft 6 or rotating shaft 3. The pneumatic-assisted locking mechanism 9 includes a mounting cylinder 91 mounted on a rotating shaft 2 6 or a rotating shaft 1 3, a friction element 92 fixedly mounted inside the mounting cylinder 91, a friction plate 93 axially movable inside the mounting cylinder 91 and corresponding to the friction element 92, and a pneumatic drive unit for driving the friction plate 93 to press against or disengage from the friction element 92. The pneumatic drive unit is connected to an external air source through a pipeline. Optionally, in this embodiment, the friction element 92 can be a hard alloy ring integrally formed with the mounting cylinder 91 or separately embedded. The friction plate 93 can be made into a disc shape using materials with good wear resistance and stable friction coefficient, such as copper-based powder metallurgy. The external air source is a compressed air source, which is usually a centralized air supply system in a factory or an independent air compressor unit, and may include a filter and a pressure reducing valve to ensure the cleanliness and pressure stability of the air source. The pipeline connecting the pneumatic drive unit to the external air source includes, for example, a main pipe and a vent pipe mounted on the main pipe. Both the main pipe and the vent pipe are equipped with solenoid valves. When locking is required, compressed air supplied from an external air source is introduced into the pneumatic drive unit through a pipeline. The pneumatic drive unit drives the friction plate 93 to press tightly against the friction element 92. The high friction generated between the two contact surfaces locks and fixes the rotating shaft 6 or rotating shaft 3. When locking is required, the solenoid valve in the vent pipe opens to release the gas in the pneumatic drive unit. The pneumatic drive unit resets, causing the friction plate 93 to disengage from the friction element 92. The rotating shaft 6 or rotating shaft 3 can then resume free rotation. When locking the rotating shaft 3, any slight rotational clearance or deformation generated by the shaft when bearing the weight of the workpiece and the cutting force is eliminated, ensuring that the workpiece is absolutely fixed during processing. When locking the rotating shaft 6, the rotational indexing position of the workpiece in the horizontal plane is firmly locked, preventing circumferential displacement. Through the linkage locking of the two shafts, the rigid solidification of the workpiece at any composite angle in space is achieved, ensuring processing accuracy and stability.

[0021] Please see the appendix Figure 3As a preferred embodiment, the clamping mechanism 8 includes a movable part 81 slidably sleeved on the outer wall of the second rotating shaft 6 (the movable part 81 can be made of high-strength aluminum alloy or ductile iron and has a sleeve structure with an inner guide hole; specifically, a linear guide rail or guide key is provided along the axial direction on the outer wall of the second rotating shaft 6, and a corresponding guide groove is opened on the inner wall of the movable part 81 to achieve axial sliding and circumferential synchronous rotation of the two), a pressure plate 83 provided on the movable part 81 for contacting the mold to be processed, and a telescopic device 82 provided on the flipping frame 5 for driving the movable part 81 to move axially relative to the second rotating shaft 6. The telescopic device 82 can be a servo electric cylinder, hydraulic cylinder or pneumatic cylinder. Specifically, during installation, one end of the telescopic device 82 can be provided on the side wall of the flipping frame 5, and its output end can be connected through a frame that is rotatably sleeved on the outer wall of the movable part 81, so as to avoid interference with the rotation of the movable part 81 with the second rotating shaft 6 when transmitting axial push and pull force. The mold is placed between the two pressure plates 83. The telescopic device 82 extends according to the program instructions, pushing the movable part 81 and the pressure plate 83 to move along the rotating shaft 2 6 towards the mold until the pressure plate 83 makes a firm contact with and presses the side of the mold with controllable pressure. When the rotating shaft 2 6 rotates, it drives the clamped mold to rotate.

[0022] Please see the appendix Figure 1-2 Preferably, in this embodiment, a support frame 2 is provided with a rotating device 4 for driving the corresponding rotating shaft 3 to rotate, and a flipping frame 5 is provided with a rotating device 7 for driving the rotating shaft 6 to rotate. The rotating device 4 in this embodiment includes a servo motor and a reducer. Its output end is connected to the corresponding rotating shaft 3 through a sprocket transmission group (including sprockets and chains). The rotating device 7 has the same structure as the rotating device 4. The CNC control system can send instructions to the rotating device 4 and the rotating device 7 respectively so that the clamped mold can be accurately rotated to the required angle.

[0023] Preferably, the mounting base 1 in this embodiment is provided with several sets of mounting holes. The mounting holes are usually evenly distributed in a matrix on the mounting base 1. The hole diameter and hole spacing follow the general T-slot or threaded hole standard of machine tool worktable, so as to firmly fasten the entire clamping platform to the worktable of the CNC machining center.

[0024] Example 2

[0025] Please see the appendix Figure 3-6Based on Embodiment 1, the output end of the pneumatic drive unit in this embodiment is connected to a connecting frame 96. A connecting rod 97 is provided on the connecting frame 96. The connecting rod 97 can be fixed to the connecting frame 96 using a bolt-like structure. A connecting seat 95 is movably fitted onto the outer wall of the connecting rod 97 (the connecting seat 95 has a through hole for the connecting rod 97 to pass through). An annular protrusion is provided on the outer wall of the connecting rod 97 for fitting against the outer side of the connecting seat 95. The diameter of the protrusion is larger than the through hole. One end of the connecting rod 97 extends to the center of the friction plate 93 and slides against the inner wall of the friction plate 93. Specifically, the inner wall of the friction plate 93 is integrally provided with a radially protruding guide slider, and a corresponding guide groove is opened on the outer wall of the connecting rod 97 along the axial direction, so that the connecting rod 97 can slide axially relative to the friction plate 93 after the friction plate 93 contacts the friction element 92. The connecting seat 95 is connected to the friction plate 93 through several sets of elastic telescopic rods 94 (which are conventional structures in this field and will not be described in detail here). The protrusion is embedded with a detection sensor 923 for connecting with the connecting seat 95. The detection sensor 923 is a pressure sensor. The detection sensor 923 is used to detect the contact pressure between the friction plate 93 and the friction element 92, and controls the pneumatic drive unit to stop when the contact pressure reaches a preset threshold. Specifically, when the pneumatic drive unit pushes the connecting frame 96 and the connecting rod 97 towards the friction element 92, the power is transmitted to the friction plate 93 through the elastic telescopic rod 94, causing it to press against the friction element 92. In the initial stage, the elastic telescopic rod 94 is not fully compressed, the connecting seat 95 remains in contact with the protrusion, and the pressure sensor reading is a low preload value. As the friction plate 93 and the friction element 92 gradually come into contact and press together, the locking resistance increases, the elastic telescopic rod 94 begins to be compressed, causing the pressure between the connecting seat 95 and the protrusion to rise sharply. This pressure value is monitored in real time by the detection sensor 923 and fed back to the CNC control system. When the pressure value detected by the detection sensor 923 reaches the set threshold corresponding to the preset optimal locking force, the CNC control system immediately instructs the pneumatic drive unit to stop supplying air to maintain pressure, thereby terminating the locking process and improving the consistency, reliability, and service life of the components in the locking process.

[0026] Preferably, in this embodiment, the friction member 92 has a blind hole on one side for the connecting rod 97 to enter and store the fluid medium. In this embodiment, hydraulic oil can be used as the fluid medium. A piston body 99 driven by the connecting rod 97 is movably installed in the blind hole. A sealing ring is embedded in the outer wall of the piston body 99 and seals against the inner wall of the blind hole. The piston body 99 and the bottom of the blind hole are connected by an elastic element 910 (such as a spring). A flow-diverting cavity communicating with the blind hole is opened in the friction member 92. Several sets of grooves communicating with the flow-diverting cavity are opened on the side of the friction member 92 facing the friction plate 93. A matching locking pin 911 is movably installed in each groove. The locking pin 911 and the bottom of the groove are connected by an elastic element 2 (such as a spring). A locking hole for the locking pin 911 to be inserted is opened on the friction plate 93. When the connecting rod 97 drives the piston body 99, the fluid medium in the blind hole is pressurized and transmitted to each groove through the diversion chamber, driving the locking pin 911 to extend. Specifically, when the friction plate 93 contacts the friction element 92 and is gradually pressed, the connecting rod 97 moves relative to the friction plate 93, and then the connecting rod 97 pushes the piston body 99 to move, compressing the hydraulic oil in the blind hole to generate high pressure. This pressure is transmitted instantaneously and equally to all grooves through the diversion chamber, pushing each locking pin 911 to extend outward into the lock hole, improving the locking rigidity and reliability. In this embodiment, the end of the locking pin 911 can be designed as conical or with a guide chamfer to facilitate insertion and alignment.

[0027] Example 3

[0028] Please see the appendix Figure 4-7 Based on Embodiment 2, the pneumatic assisted locking mechanism 9 of this embodiment includes a pneumatic cylinder 98 (specifically, the pneumatic cylinder 98 is mounted on the support frame 2 or the flip frame 5), a piston component 912 (a conventional component in the art, including a piston and a piston rod connected to the piston) that is axially movable inside the pneumatic cylinder 98, and an elastic component 3 (such as a spring) connecting the piston component 912 and the inner wall of the pneumatic cylinder 98. The piston rod of the piston component 912 is connected to the connecting frame 96. One end of the pneumatic cylinder 98 is connected to an external air source through a pipeline. Specifically, the compressed air supplied by the external air source enters the pneumatic cylinder 98 and drives the piston of the piston component 912 to squeeze the elastic component 3 to move. Then, the piston drives the connecting frame 96 through the piston rod so that the friction plate 93 moves toward the friction component 92.

[0029] Preferably, in this embodiment, a bracket is provided inside the pneumatic cylinder 98 and on one side of the piston component 912. A lead screw 913 is threaded onto the bracket. One end of the lead screw 913 is provided with a ball bearing for sliding contact with the piston component 912 to reduce frictional resistance and avoid interference with the rotation of the lead screw 913. The other end is provided with a rack 914. In this embodiment, the rack 914 is also connected to a T-shaped guide rod horizontally thereto. The T-shaped guide rod moves through the bracket to ensure that the rack 914 can only move in a straight line. The rack 914 meshes with a gear component (including a gear and a shaft). The shaft of the gear component passes through the side wall of the pneumatic cylinder 98 through a rotary seal and extends into an indicator seat 915 fixedly provided on the outer wall of the pneumatic cylinder 98. In this embodiment, the side of the indicator seat 915 away from the pneumatic cylinder 98 is hollow. The outer wall of the end of the shaft located inside the indicator seat 915 is provided with a pointer-shaped indicator mark 916. A scale bar that cooperates with the indicator mark 916 is provided inside the indicator seat 915.

[0030] When the friction plate 93 decreases in thickness due to long-term use, in order to achieve the same preset optimal locking force, the piston of piston component 912 needs to move a longer stroke under air pressure to push the friction plate 93 into full contact with the friction component 92. This increased stroke causes the piston to be closer to the bracket at the initial locking end position, thereby pushing the lead screw 913 to cause axial displacement and rotation. The lead screw 913 drives the rack 914 to move linearly, and the rack 914 in turn drives the gear component, ultimately causing the indicator 916 fixed on the shaft of the gear component to rotate through the corresponding angle. The wear condition of the friction plate 93 can be understood through the scale bar. In this way, the wear of the friction plate 93, which cannot be directly observed, is converted into a visible scale bar reading. Without any external sensors or electricity, effective monitoring and predictive maintenance prompts for the air pressure assisted locking mechanism 9 are achieved. This allows the operator to clearly judge the remaining life of the friction plate 93 and arrange for timely replacement, avoiding the decline in processing quality or sudden failure caused by excessive wear of the friction plate 93. Optionally, the lead screw 913 in this embodiment may be made of fine thread to improve the displacement conversion sensitivity. The transmission ratio of the gear and rack 914 may be adjusted according to the required indication accuracy. The scale on the indicator may be marked as the "remaining thickness percentage" or "recommended inspection / replacement" area of ​​the friction plate 93. An operating handwheel may also be provided at the outer end of the gear shaft to allow the drive shaft to reset the lead screw 913 later.

[0031] Preferably, in this embodiment, the inner wall of the indicator seat 915 is provided with an adjusting ring 917 rotatably via a bearing, and the outer wall of the indicator seat 915 is provided with a fastener (such as a bolt or set screw) for fixing the adjusting ring 917 to the indicator seat 915. The inner wall of the adjusting ring 917 is provided with a contact sensor 918 (such as a micro switch or Hall effect sensor) for contacting the indicator 916. The contact sensor 918 is connected to the CNC control system. After contacting the indicator 916, the contact sensor 918 sends a signal to the CNC control system, and the CNC control system controls the operation of external alarm devices (such as audible and visual alarms). Specifically, the operator can manually rotate the adjusting ring 917 to the corresponding angle position and lock it with the fastener according to the allowable wear threshold of the friction plate 93, thereby setting the alarm point. When the friction plate 93 wears normally, the indicator 916 rotates slowly as the wear increases. Once the wear reaches the preset limit, the indicator 916 finally touches the contact sensor 918. The contact sensor 918 then generates an electrical signal and transmits it to the CNC control system. The CNC control system drives the external alarm device to act and issues a clear replacement warning.

[0032] Preferably, in this embodiment, a liquid guide tube 919 is provided on one side of the pneumatic cylinder 98. The liquid guide tube 919 has a small diameter and a small length. A piston component 921 (with the same structure as piston component 912) is provided inside the liquid guide tube 919. The piston component 921 is connected to the inner wall of the liquid guide tube 919 by an elastic component (such as a spring). One end of the piston rod of the piston component 921 passes through the pneumatic cylinder 98 and is connected to a magnetic block 920. The piston of piston component 912 is provided with a magnetic block 920 for attracting the magnetic block 920. 9 is connected to an oil storage tank (not shown in the figure) for storing lubricating oil through a one-way liquid inlet pipe (a pipe with a one-way valve inside). The liquid guide cylinder 919 is also connected to an atomizing nozzle 922 through a one-way liquid outlet pipe (a pipe with a one-way valve inside). The atomizing nozzle 922 is embedded in the inner wall of the mounting cylinder 91 and located on one side of the friction element 92. The liquid outlet end of the atomizing nozzle 922 faces the side of the friction element 92 corresponding to the friction plate 93. The one-way liquid outlet pipe is also connected to the air pressure cylinder 98 through a one-way air outlet pipe (a pipe with a one-way valve inside).

[0033] When compressed air drives piston 912 to move and lock, it magnetically drives piston 921 to move synchronously within the liquid guide cylinder 919. The movement of piston 921 generates negative pressure within the liquid guide cylinder 919, thereby drawing a fixed amount of lubricating oil from the oil storage tank through the one-way inlet pipe. As piston 912 continues to move forward, piston 921 moves to its final position, and the two magnetic blocks separate. At this time, piston 921 resets under the action of elastic element 4, pressurizing the lubricating oil in the liquid guide cylinder 919 and injecting it into the one-way outlet pipe. Meanwhile, the movement of piston 912 also compresses the gas in the air cylinder 98 out through the one-way outlet pipe. The gas then mixes with the lubricating oil in the one-way outlet pipe, forming a fine oil mist which is then sprayed onto the surface of the friction element 92 through the atomizing nozzle 922. Finally, piston 912... Upon reaching its locking endpoint, the friction plate 93 and the surface of the friction component 92, which has been pre-coated with a small amount of lubricating oil, complete the pressure contact, achieving rigid locking under lubrication. It should be noted that the amount of lubricating oil supplied at one time during the entire process is strictly limited by the stroke of the piston component 921. If the amount supplied at one time is only a few milligrams to tens of milligrams, the amount of lubricating oil can be controlled by adjusting this stroke to avoid excessive lubrication. In this way, it is ensured that the friction component 92 receives an appropriate amount of lubricating oil each time it is locked, which can form a boundary lubricating film on the contact surface of the friction component 92. This film not only reduces the wear rate of the friction plate 93 and extends its service life, but also effectively ensures the consistency of the locking force. At the same time, due to the extremely small amount of oil, the risk of a decrease in locking force (slippage) caused by excessive lubricating oil forming a hydrodynamic film is avoided. It should be noted that the pneumatic cylinder 98 and the liquid guide cylinder 919 in this pneumatic drive unit are also equipped with vent pipes to ensure internal air pressure balance, so that piston component 1 912 or piston component 2 921 can move stably.

[0034] The above embodiments are merely illustrative of several implementation methods of the present invention, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A multi-angle flip-up clamping platform for mold processing, comprising a mounting base (1), two support frames (2) symmetrically arranged on the mounting base (1), and a flipping frame (5) disposed between the two support frames (2), characterized in that, The flipping frame (5) is rotatably connected to the support frame (2) via a rotating shaft (3). The two sides of the flipping frame (5) are symmetrically inserted with rotating shafts (6). The axes of the rotating shafts (6) and the rotating shafts (3) are perpendicular to each other. The inner end of the rotating shafts (6) is provided with a clamping mechanism (8) for clamping the mold to be processed. Both the rotating shafts (6) and the rotating shafts (3) are provided with pneumatic assisted locking mechanisms (9) with the same structure. The pneumatic-assisted locking mechanism (9) includes a mounting cylinder (91) mounted on a rotating shaft two (6) or a rotating shaft one (3), a friction element (92) fixedly mounted in the mounting cylinder (91), a friction plate (93) axially movable in the mounting cylinder (91) and corresponding to the friction element (92), and a pneumatic drive unit for driving the friction plate (93) to press against or disengage from the friction element (92). The pneumatic drive unit is connected to an external air source through a pipeline.

2. The clamping platform according to claim 1, characterized in that, The clamping mechanism (8) includes a movable part (81) slidably sleeved on the outer wall of the second rotating shaft (6), a pressure plate (83) provided on the movable part (81) for contacting the mold to be processed, and a telescopic device (82) provided on the flipping frame (5) for driving the movable part (81) to move axially relative to the second rotating shaft (6).

3. The clamping platform according to claim 1, characterized in that, The support frame (2) is provided with a rotating device (4) for driving the corresponding rotating shaft (3) to rotate, and the flipping frame (5) is provided with a rotating device (7) for driving the rotating shaft (6) to rotate.

4. The clamping platform according to claim 1, characterized in that, The output end of the pneumatic drive unit is connected to a connecting frame (96). The connecting frame (96) is provided with a connecting rod (97). A connecting seat (95) is movably sleeved on the outer wall of the connecting rod (97). The outer wall of the connecting rod (97) is provided with a protrusion for fitting against the outer side of the connecting seat (95). One end of the connecting rod (97) extends to the center of the friction plate (93) and slides in connection with the inner wall of the friction plate (93). The connecting seat (95) is connected to the friction plate (93) through several sets of elastic telescopic rods (94). A detection sensor (923) for connecting with the connecting seat (95) is embedded on the protrusion. The detection sensor (923) is used to detect the contact pressure between the friction plate (93) and the friction element (92), and controls the pneumatic drive unit to stop when the contact pressure reaches a preset threshold.

5. The clamping platform according to claim 4, characterized in that, The friction element (92) has a blind hole on one side for the connecting rod (97) to enter and store the fluid medium. A piston body (99) driven by the connecting rod (97) is movably installed in the blind hole. The piston body (99) is connected to the bottom of the blind hole through an elastic element (910). The friction element (92) has a flow-dividing cavity communicating with the blind hole. The friction element (92) has several sets of grooves communicating with the flow-dividing cavity on the side facing the friction plate (93). Each groove has a matching locking pin (911) movably installed. The locking pin (911) and the bottom of the groove are connected through an elastic element. The friction plate (93) has a locking hole for the locking pin (911) to be inserted. When the connecting rod (97) drives the piston body (99), the fluid medium in the blind hole is pressurized and transmitted to each groove through the diversion cavity to drive the locking pin (911) to extend.

6. The clamping platform according to claim 1, characterized in that, The pneumatic-assisted locking mechanism (9) includes a pneumatic cylinder (98), a piston component (912) axially movable inside the pneumatic cylinder (98), and an elastic component (3) connecting the piston component (912) and the inner wall of the pneumatic cylinder (98). The piston rod of the piston component (912) is connected to a connecting frame (96), and one end of the pneumatic cylinder (98) is connected to an external air source through a pipeline.

7. The clamping platform according to claim 6, characterized in that, A bracket is provided inside the pneumatic cylinder (98) and on one side of the piston component (912). A lead screw (913) is threaded into the bracket. One end of the lead screw (913) is provided with a ball for sliding contact with the piston component (912), and the other end is provided with a rack (914). The rack (914) is meshed with a gear component. The shaft of the gear component passes through the side wall of the pneumatic cylinder (98) and extends into an indicator seat (915) fixedly installed on the outer wall of the pneumatic cylinder (98). An indicator mark (916) is provided on the outer wall of the end of the shaft located inside the indicator seat (915). A scale bar that cooperates with the indicator mark (916) is provided inside the indicator seat (915).

8. The clamping platform according to claim 7, characterized in that, The inner wall of the indicator seat (915) is provided with an adjusting ring (917) for rotation. The outer wall of the indicator seat (915) is provided with a fixing member for fixing the adjusting ring (917) to the indicator seat (915). The inner wall of the adjusting ring (917) is provided with a contact sensor (918) for contacting the indicator (916). The contact sensor (918) controls the operation of the external alarm device after contacting the indicator (916).

9. The clamping platform according to claim 6, characterized in that, A liquid guide tube (919) is provided on one side of the air pressure cylinder (98). A piston component two (921) is provided inside the liquid guide tube (919). The piston component two (921) is connected to the inner wall of the liquid guide tube (919) through an elastic component four. One end of the piston rod of the piston component two (921) passes through the air pressure cylinder (98) and is connected to a magnetic block one (920). The piston of the piston component one (912) is provided with a magnetic block two for adsorbing the magnetic block one (920). The liquid guide tube ( 919) is connected to an oil storage tank for storing lubricating oil through a one-way liquid inlet pipe. The liquid guide cylinder (919) is also connected to an atomizing nozzle (922) through a one-way liquid outlet pipe. The atomizing nozzle (922) is embedded in the inner wall of the mounting cylinder (91) and located on one side of the friction element (92). The liquid outlet end of the atomizing nozzle (922) faces the side of the friction element (92) corresponding to the friction plate (93). The one-way liquid outlet pipe is also connected to the air pressure cylinder (98) through a one-way air outlet pipe.

10. The clamping platform according to claim 1, characterized in that, The mounting base (1) is provided with several sets of mounting holes.

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