Multi-connecting-rod press machine with die multifunctional switching detection function

Abstract

The multi-connecting-rod press machine comprises a machine body, a cross beam body is installed above the machine body, a sliding block is installed at the bottom of the cross beam body, the outer wall of the sliding block is installed on the machine body in a sliding mode, a movable die table is arranged on the portion, close to the lower portion of the sliding block, of the machine body, and a water collecting pool is installed on one side of the machine body. The multi-connecting-rod press machine comprises a water collecting tank, a quick transfer switching mechanism and a self-locking clamping linkage mechanism, wherein a die detection device and a die cleaning device are fixedly mounted on the water collecting tank; the clamping control of an L-shaped rack clamping plate and a fixed clamping plate of the clamping device can be realized, and meanwhile, the self-locking control of a positioning rod with a second positioning hole and a first positioning hole can be realized, so that an additional safety guarantee is provided in the pulling-back and pushing processes, and the accidental falling of the movable mold table is prevented; and meanwhile, the stability of the movable mold table can be guaranteed when the movable mold table and the press machine are installed and the movable mold table and the cross-shaped guide groove are pre-stored.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of press machine, in particular to a multi-link press machine with mold and multifunctional switching detection. BACKGROUND

[0002] The multi-link press machine is used for deep drawing, blanking, forming, bending, correction and other cold stamping processes of sheet parts, and the four-point press machine can be applied to various cold stamping processes such as blanking, forming, bending, correction and shallow drawing of sheet parts. The multi-link press stamping automatic production line is an indispensable automatic production line in the automobile, light industry, electrical appliance and national defense industries, which realizes the automation, intelligence and rapidity of the stamping production line, significantly improves the quality and production efficiency of the product, has high market demand and remarkable economic benefits.

[0003] At present, the installation of the mold mainly depends on the bolt fixing mode, the traditional bolt fastening operation takes more than 30 minutes, and the insufficient automation level causes the interruption of production. At the same time, the mold dismounting and replacing process is complicated, and the existing technology generally adopts a single station mold storage system, which is difficult to realize the pre-assembly of multiple molds. In addition, when carrying out the multi-shape mold stamping operation, the existing equipment cannot complete the automatic replacement operation of the mold, which not only limits the diversity of material stamping shape, but also seriously affects the overall stamping efficiency.

[0004] In addition, after the mold is replaced, manual positioning and calibration need to be repeatedly carried out to prevent installation deviation, but the time consumption of single replacement and positioning process is too long, which seriously affects the production line rhythm; secondly, there is a lack of online automatic detection function, which cannot realize the timing self-checking in the production process, which is difficult to find the mold damage in time and difficult to guarantee the size accuracy of the stamping product. These two key defects jointly restrict the improvement of production efficiency and product quality.

[0005] Therefore, a multi-link press machine with mold and multifunctional switching detection is proposed to solve the above problems. SUMMARY

[0006] Therefore, the technical problem to be solved by the present application is to provide a multi-link press machine with mold and multifunctional switching detection to solve the problems of low mold replacement efficiency and low mold self-checking degree in the prior art.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a multi-link press with mold multifunctional switching detection, comprising a machine body, a cross beam body is installed above the machine body, a sliding block is installed at the bottom of the cross beam body, the outer wall of the sliding block is slidingly installed on the machine body, a movable mold table is arranged below the machine body close to the sliding block, a water collecting pool is installed on one side of the machine body, a mold detection device and a mold cleaning device are respectively fixedly installed on the water collecting pool, the multi-link press with mold multifunctional switching detection further comprises a quick transfer switching mechanism and a self-locking clamping linkage mechanism.

[0008] The quick transfer switching mechanism is arranged in the water collecting pool, and is used for replacing and cleaning the movable mold table.

[0009] The self-locking clamping linkage mechanism is arranged in the movable mold table, and is used for replacing and self-locking the movable mold table.

[0010] As preferred, the quick transfer switching mechanism comprises a support table, the support table is fixedly installed in the water collecting pool, a rotating table is rotatably installed on the upper surface of the support table, a through hole is formed in the middle of the rotating table, a driving device is fixedly installed in the middle of the water collecting pool and penetrates through the through hole, and a clamping device is installed on the driving shaft of the driving device.

[0011] As preferred, a cross guide groove is formed in the upper surface of the rotating table, the movable mold table is slidingly installed in the cross guide groove, first positioning holes are uniformly formed in the side walls of the movable mold table, and a drainage hole is formed in the cross guide groove.

[0012] As preferred, an installation groove is formed in the machine body, the installation groove is formed at the same horizontal height as the cross guide groove, a second positioning hole and a limiting groove are respectively formed in the installation groove of the machine body, the limiting groove is used for guiding and controlling the movable mold table, and the second positioning hole is used for positioning and fixing the movable mold table.

[0013] As preferred, an annular gear is fixedly installed at the bottom of the rotating table, a driving gear is engaged with the inner tooth surface of the annular gear, a driving motor is fixedly installed in the middle of the driving gear, and the driving motor is installed in the middle of the support table.

[0014] As preferred, the self-locking clamping linkage mechanism comprises an L-shaped rack clamping plate, a control groove is formed in the movable mold table, the L-shaped rack clamping plate is slidingly installed in the control groove of the movable mold table, the L-shaped rack clamping plate is engaged with the tooth surface of a rotating gear disc, the rotating gear disc is rotatably installed in the control groove of the movable mold table, a rotating disc is fixedly installed on the middle lower surface of the rotating gear disc, arc extrusion grooves are symmetrically formed on the rotating disc,

[0015] As preferred, the arc-shaped extrusion groove is slidably installed with an extrusion column, the lower surface of the extrusion column is fixedly installed with a sliding plate, the two ends of the sliding plate are slidably installed in a movable mold table control groove, the side away from the rotating disc of the sliding plate is uniformly fixedly installed with a positioning rod, the end away from the sliding plate of the positioning rod is slidably installed in the movable mold table control groove,

[0016] As preferred, the outer surface of the positioning rod is sleeved with a compression spring, one end of the compression spring is fixedly installed on the sliding plate, the other end of the compression spring is fixedly installed in the movable mold table control groove, and the outer surface of the movable mold table is fixedly installed with a fixed clamping plate on the side close to the L-shaped rack clamping plate.

[0017] Compared with the prior art, the present application provides a multi-link press with a mold and multifunctional switching detection, which has the following advantages:

[0018] (1) Automation: The entire replacement process of the press mold does not require manual intervention for moving the mold table, positioning and clamping. Through the servo positioning system and the electric control clamping device, the whole process of mold loading and unloading is realized without manual intervention, and human error risk is eliminated.

[0019] (2) High efficiency: Multiple movable mold tables are pre-installed, and the rotating disc is rotated and positioned quickly, which significantly shortens the mold changing time. The type and number of movable mold tables can be customized according to requirements.

[0020] (3) Integration: The cleaning and detection functions are integrated into the mold changing process, improving the maintenance efficiency and quality control of the movable mold table. At the same time, through the regular detection of the movable mold table by the sensor, regular self-checking of the movable mold table can be realized, reducing the damage to the mold.

[0021] (4) Precision: The sensor system ensures the positioning and installation accuracy of the movable mold table.

[0022] (5) Self-locking reliability: The clamping device can realize self-locking control of the positioning rod in the second positioning hole and the first positioning hole while clamping control of the L-shaped rack clamping plate and the fixed clamping plate. It not only provides additional safety during pulling back and pushing, preventing the movable mold table from falling accidentally, but also ensures the stability of the movable mold table during installation and movement of the movable mold table and the cross guide groove.

[0023] (6) The present application designs a water collecting pool with a diameter slightly larger than the support table and the rotating disc. When the movable mold table is cleaned, the sewage can be discharged through the drainage hole and the flow of the outer edge and collected in the water collecting pool. The cleaning device of the mold can filter the cleaning water in the water collecting pool through the filter device and then reuse it for cleaning and cooling of the water collecting pool, reducing the damage to the mold. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Schematic diagram of the three-dimensional structure of the present application;

[0025] Figure 2 Schematic diagram of the three-dimensional structure of the present application;

[0026] Figure 3 Schematic diagram of the structure connection relationship of the quick transfer switching mechanism of the present application;

[0027] Figure 4 Schematic diagram of the structure connection relationship of the quick transfer switching mechanism of the present application;

[0028] Figure 5 Schematic diagram of the three-dimensional structure of the present application Figure 4 Enlarged view of A in the present application;

[0029] Figure 6 Schematic diagram of the structure connection relationship of the mobile mold table of the present application;

[0030] Figure 7 Schematic diagram of the structure connection relationship of the mobile mold table of the present application;

[0031] Figure 8 Schematic diagram of the three-dimensional structure of the present application Figure 7 Enlarged view of B in the present application;

[0032] Figure 9 Schematic diagram of the three-dimensional structure of the present application

[0033] In the figure:

[0034] 1, machine body; 11, beam body; 12, sliding block; 13, mobile mold table; 14, water collecting pool; 15, mold detection device; 16, mold cleaning device;

[0035] 2, quick transfer switching mechanism; 21, support table; 22, rotating table; 23, driving device; 24, cross guide groove; 25, first positioning hole; 26, drain hole; 27, second positioning hole; 28, limiting groove; 29, clamping device; 201, annular tooth; 202, driving gear;

[0036] 3, self-locking clamping linkage mechanism; 31, L-shaped rack clamping plate; 32, rotating tooth disc; 33, rotating disc; 34, arc extrusion groove; 35, extrusion column; 36, sliding plate; 37, positioning rod; 38, compression spring; 39, fixed clamping plate. DETAILED DESCRIPTION

[0037] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0038] The present application will be further described in detail according to the drawings and embodiments.

[0039] The first embodiment, please refer to Figures 1 to 9 As shown in the figure:

[0040] To solve the problems mentioned in the technical solutions, the embodiments of the present application provide a multi-link press with mold multifunctional switching detection, which comprises a machine body 1, a cross beam body 11 is installed above the machine body 1, a sliding block 12 is installed at the bottom of the cross beam body 11, the outer wall of the sliding block 12 is slidingly installed on the machine body 1, a movable mold table 13 is arranged below the machine body 1 close to the sliding block 12, a water collecting tank 14 is installed on one side of the machine body 1, a mold detection device 15 and a mold cleaning device 16 are respectively fixedly installed on the water collecting tank 14, and the multi-link press with mold multifunctional switching detection further comprises a rapid transfer switching mechanism 2 and a self-locking clamping linkage mechanism 3.

[0041] The rapid transfer switching mechanism 2 is arranged in the water collecting tank 14, and the rapid transfer switching mechanism 2 is used for replacing and cleaning the movable mold table 13.

[0042] The self-locking clamping linkage mechanism 3 is arranged in the movable mold table 13, and the self-locking clamping linkage mechanism 3 is used for replacing and self-locking the movable mold table 13.

[0043] The machine body is all made of all-steel welded structure, which is subjected to aging treatment after welding to eliminate internal stress; the cross beam, the column and the base are fixed together through tension bolts, the tension bolts are pre-tightened by using a hydraulic length extender, which is beneficial to disassembly and repair in the future. Rectangular positioning keys are arranged on the joint surfaces between the cross beam body 11, the column and the base to ensure their mutual assembly relationship and prevent mutual displacement that may occur during work. The column has large size and sufficient internal space, which is beneficial to pipeline arrangement and maintenance, and the cross beam body 11 and the base have good rigidity, which effectively improves the running accuracy of the assembled machine.

[0044] The column is vertically arranged on the left and right sides of the base, and eight 90° adjustable guide rails are arranged on the inner side of the column. The lower end of each guide rail is provided with an oil receiving box, which is circulated back to the main lubricating oil tank through an oil return pipe. Safety doors with perspective glass are installed at the openings of the left and right columns of the press.

[0045] The left column of the press is provided with an electric control system in front, including: a total gas source, a separate gas pressure control valve, a balancer gas pressure control valve, a gas cushion gas pressure control valve, a moving workbench clamping lifting gas pressure control valve, a standby gas source gas pressure control valve, an exhaust valve, and the like, and a pressure gauge is provided for display. The right column of the press is provided with an industrial touch screen and a centralized operation console in front.

[0046] The slider 12 is a steel plate welded box structure to ensure sufficient rigidity and strength, and is subjected to aging treatment after welding to eliminate internal stress. The slider 12 is guided by a four-corner eight-surface right-angle guide rail, and the motion guiding precision can be adjusted by an adjusting device on the guide rail. The adjustment is convenient, the adjustment precision is high, the precision deviation phenomenon is not easy to occur after adjustment, the precision retention is good, and the anti-bias load capacity is strong. A wear-resistant guide rail plate is inlaid on the guide rail of the slider 12. The mold loading height adjustment is driven by a famous brand electromagnetic brake motor. The motor contactor has anti-sticking interlocking. The regulator mechanism is provided with an over-torque protection coupling device. The mold loading height adjustment speed is 50-60 mm / min. The upper and lower limit positions are provided with soft and hard limit positions. The hard limit is controlled by two mechanical limit switches mounted on the slider 12. The mold loading height is detected by an imported absolute value rotary encoder and displayed and controlled on the touch screen. The display precision of the mold loading height of the slider 12 is ±0.1 mm. The mold loading height can be manually and automatically adjusted. The slider 12 adjustment is interlocked with the balancer pressure, hydraulic protection and slider 12 stroke.

[0047] Specifically, the support table 21 is fixedly installed in the water collecting pool 14, and the rotary table 22 is rotatably installed on the upper surface of the support table 21. The rotary table 22 is provided with a through hole in the middle, and the driving device 23 is fixedly installed in the through hole in the middle of the water collecting pool 14. The driving shaft of the driving device 23 is provided with the clamping device 29;

[0048] Specifically, the support table 21 is fixedly installed in the water collecting pool 14, and the rotary table 22 is rotatably installed on the upper surface of the support table 21. The rotary table 22 is provided with a through hole in the middle, and the driving device 23 is fixedly installed in the through hole in the middle of the water collecting pool 14. The driving shaft of the driving device 23 is provided with the clamping device 29;

[0049] Further, the cross guide groove 24 is formed in the upper surface of the rotary table 22, and the movable mold table 13 is slidably installed in the cross guide groove 24. The first positioning hole 25 is uniformly formed in the sidewall of the first positioning hole 25, and the drain hole 26 is formed in the cross guide groove 24.

[0050] The water collecting pool 14 is slightly larger than the support table 21 and the rotating table 22 in diameter, and when the mobile mold table 13 is cleaned through the water collecting pool 14, the sewage can be discharged and collected into the water collecting pool 14 through the drainage hole 26 and the flow of the external edge. The mold cleaning device 16 can filter the cleaning water in the water collecting pool 14 through the water pump and then reuse it for cleaning and cooling the water collecting pool 14, thereby reducing the damage to the mold.

[0051] Further, the machine body 1 is provided with a mounting groove, which is arranged at the same horizontal level as the cross-shaped guide groove 24. The mounting groove of the machine body 1 is respectively provided with a second positioning hole 27 and a limiting groove 28. The limiting groove 28 is used for guiding and controlling the mobile mold table 13, and the second positioning hole 27 is used for positioning and fixing the mobile mold table 13.

[0052] The red displacement detection control device is arranged in the cross-shaped guide groove 24 and the mounting groove of the mobile mold table 13, and is electrically connected with the driving device 23. When the driving shaft of the driving device 23 drives the clamping device 29 to move, the red displacement detection control device can realize the start-stop control of the driving device 23. Meanwhile, sensors are arranged on the clamping device 29 and the mobile mold table 13. Through the sensor signal transmission, the clamping control of the clamping device 29 can be realized through the control device.

[0053] Specifically, the rotating table 22 is fixedly installed with an annular tooth 201 at the bottom. The inner tooth surface of the annular tooth 201 is engaged with a driving gear 202. The driving gear 202 is fixedly installed with a driving motor at the middle part, and the driving motor is installed in the middle part of the support table 21.

[0054] The driving motor can realize the rotation control of the rotating table 22. Through the rotation of the rotating table 22, the replacement, cleaning and detection of the mobile mold table 13 can be realized. Compared with the prior art, the mobile mold table 13 can be quickly replaced through the clamping of the L-shaped rack clamping plate 31 to the fixed clamping plate 39 and the pulling of the driving device 23. Compared with the traditional mold replacement, the replacement time of the mold detection device 15 is shortened from 2 hours to within 15 minutes, and the replacement efficiency is improved by more than 70%.

[0055] Specifically, the mobile mold table 13 is provided with a control groove, and the L-shaped rack clamping plate 31 is slidingly installed in the control groove of the mobile mold table 13. The L-shaped rack clamping plate 31 is engaged with a rotating tooth disc 32. The rotating tooth disc 32 is rotatably installed in the control groove of the mobile mold table 13. The rotating tooth disc 32 is fixedly installed with a rotating disc 33 at the middle part of the lower surface. The rotating disc 33 is symmetrically provided with an arc extrusion groove 34,

[0056] The middle part of the L-shaped rack clamping plate 31 is fixed by a reset spring, which can realize linear control buffer when clamping the L-shaped rack clamping plate 31. The L-shaped rack clamping plate 31 is provided with a recessed clamping groove near the outer side of the movable mold table 13, which can be clamped with the clamping device 29 on the driving device 23.

[0057] Further, the slidingly installed extrusion column 35 is installed in the arc-shaped extrusion groove 34, the lower surface of the extrusion column 35 is fixedly installed with a sliding plate 36, the two ends of the sliding plate 36 are slidingly installed in the control groove of the movable mold table 13, and the side away from the turntable 33 of the sliding plate 36 is uniformly fixedly installed with a positioning rod 37, the end away from the sliding plate 36 of the positioning rod 37 is slidingly installed on the outer surface of the control groove of the movable mold table 13,

[0058] The sliding plate 36 is symmetrically arranged in the control groove of the movable mold table 13.

[0059] Further, the outer surface of the positioning rod 37 is sleeved with a compression spring 38, one end of the compression spring 38 is fixedly installed on the sliding plate 36, and the other end of the compression spring 38 is fixedly installed in the control groove of the movable mold table 13. The outer surface of the movable mold table 13 is fixedly installed with a fixed clamping plate 39 near the side of the L-shaped rack clamping plate 31.

[0060] The clamping of the L-shaped rack clamping plate 31 and the fixed clamping plate 39 by the clamping device 29 on the driving shaft of the driving device 23 can drive the L-shaped rack clamping plate 31 to drive the rotating gear disc 32 to rotate, the rotation of the rotating gear disc 32 can drive the arc-shaped extrusion groove 34 to extrude the extrusion column 35, and the mutual extrusion can drive the turntable 335 to drive the sliding plate 36 to slide in the control groove of the movable mold table 13, and the sliding of the sliding plate 36 can directly drive the positioning rod 37 to slide in the control groove of the movable mold table 13. The elastic potential energy of the compression spring 38 is utilized to make the positioning rod 37 protrude from the end away from the sliding plate 36 under the pulling of the elastic potential energy of the compression spring 38 in the initial state, and when the clamping device 29 on the extension shaft of the driving device 23 clamps the L-shaped rack clamping plate 31 and the fixed clamping plate 39, the displacement of the fixed clamping plate 39 can drive the positioning rod 37 to retract from the outside of the movable mold table 13 into the control groove of the movable mold table 13, so that automatic locking during installation of the movable mold table 13 and automatic disengagement control during disassembly can be realized.

[0061] In the second embodiment, the specific implementation process is as follows:

[0062] In the initial state, the driving shaft of the driving device 23 is not extended, and as shown in FIG.

[0063] Trigger the replacement instruction: At this time, the operator selects the mold to be replaced, for example, from station 3 to station 5 on the HMI human-machine interface, or the system automatically triggers the replacement according to the production plan.

[0064] System check: The press mold opening position sensor must be ON, that is, the slide 12 is at a safe height;

[0065] The safety light curtain / area scanner must be clear (non-intrusive).

[0066] At the target station, the in-position sensor of the movable mold stage 13 on the turntable 22 must be ON, and there must be an available movable mold stage 13 in the cross guide groove 24 of the turntable 22;

[0067] The mold in-place sensor of the mobile mold station 13 currently on the press may be ON (open), if the system needs to recycle the old mold, or OFF (closed), if the old mold is directly removed.

[0068] When all conditions are met, the replacement process starts.

[0069] Remove the current mold:

[0070] Positioning workstation: Figure 9 As shown, the driving gear 202 is driven by two servo motors to drive the annular gear 201 to start rotating, and the annular gear 201 drives the turntable 22 to start rotating on the support 21. The angle encoder of the turntable 22 provides real-time position feedback. When the top position sensor of the turntable 22 detects that the current position of the movable mold table 13 has accurately reached the "working position", that is, aligned with the center of the press, the turntable 22 stops.

[0071] Connecting clamping: The sensor on the cross guide groove 24 activates the drive device 23 of the workstation 3 to start extending, and the drive shaft slowly extends. When the clamping device 29 at the end of the drive shaft moves to the edge of the movable die table 13 on the current press, the sensor on the clamping device 29 can start the clamping device 29.

[0072] Further, the clamping device 29 is actuated, such as the hydraulic / pneumatic clamping jaws are closed, clamping the L-shaped rack clamping plate 31 and the fixed clamping plate 39 in the movable die table 13. The state sensor installed in the clamping device 29 confirms the "clamping" state. At this time, Figure 7 and Figure 8 As shown, when the L-shaped rack clamp 31 is clamped by the clamping device 29, the clamping action of the clamping device 29 will drive the L-shaped rack clamp 31 to start sliding toward the middle of the movable mold table 13, that is, the L-shaped rack clamp 31 moves toward the middle of the movable mold table 13. Figure 8The left side is shown sliding, at this time through the L-shaped rack clamp plate 31 tooth surface and the tooth surface of the rotating gear disc 32 meshing will drive the rotating gear disc 32 to start rotating clockwise, further through the mutual extrusion of the arc extrusion groove 34 and the extrusion column 35 will drive the extrusion column 35 to drive the sliding plate 36 to start sliding to the middle of the rotating disc 33, further through the sliding plate 36 will drive the positioning rod 37 to start sliding to the middle of the control groove of the moving mold table 13, so that the positioning rod 37 in the initial state, the end protrudes and the second positioning hole 27 are mutually locked, start to gradually release the lock and realize the positioning rod 37 starts to shrink to the control layer of the moving mold table 13, at this time the compression spring 38 starts to be stretched and compressed, so that the locking between the moving mold table 13 and the press can be realized; At this time, the system is unlocked and confirmed: the system confirms again that the press moving mold table 13 locking release sensor is ON (on).

[0073] Pull back the moving mold table 13 to the cross guide groove 24 opened in the rotating table 22: the clamping device 29 instructs the push / pull mechanism of the work station 3 to retract, and the clamping device 29 firmly holds the moving mold table 13 and smoothly pulls it back from the press workbench to the fixed base of the cross guide groove 24 opened in the rotating table 22 work station 3.

[0074] Positioning confirmation: the work station in situ sensor detects that the drive shaft push rod of the driving device 23 is completely retracted, and the moving mold table 13 in situ sensor confirms that the moving mold table 13 has returned to the base of the work station 3;

[0075] Release clamping: the clamping device 29 state sensor confirms the "loose" state, at this time the moving mold table 13 in the cross guide groove 24 is separated from the clamping device 29, and at the same time the positioning rod 37 is automatically clamped in the first positioning hole 25 under the elastic action of the compression spring 38 to realize the self-locking of the moving mold table 13.

[0076] Rotating table 22 rotates to a new moving mold table 13 work station:

[0077] Rotation instruction: the system instructs the rotating table 22 to rotate.

[0078] Path monitoring: the rotating table 22 angle encoder continuously monitors the position.

[0079] Cleaning / detection is optional and triggered when the work station 3 with the just removed old mold or any other work station rotates through the cleaning / detection area to the in situ sensor:

[0080] High-pressure spray starts to cool and clean the moving mold table 13 if needed.

[0081] The visual camera takes a photo to detect the surface of the moving mold table 13.

[0082] Temperature / size sensor measures if configured.

[0083] Data recording and evaluation, possible alarm in case of serious problems.

[0084] Positioning target station: The rotary table 22 continues to rotate until the rotary table 22 apex position sensor detects that the target station 5 has arrived exactly at the "working position", at which point the rotary table 22 stops and locks.

[0085] Where safety comes first: the press opens to the correct position, the press locks and releases, and the safety zone sensor forms the core safety interlock. If any of these conditions are not met, the process cannot start or must be interrupted.

[0086] Precise positioning: The rotary table 22 apex position sensor, combined with the encoder, ensures precise alignment of the station with the press. The moving die table 13 to position sensor ensures the installation accuracy of the moving die table 13.

[0087] Status monitoring: The station is in place, the moving die table 13 is in place, and the clamping state sensor provides real-time feedback on the status and position of each actuator, the presence or absence of the moving die table 13, and clamping / unclamping, which is the basis for process sequence control.

[0088] Process security: The cleaning / detection area to position sensor triggers the auxiliary process. The rotary table 22 angle encoder provides continuous position feedback for motion control.

[0089] Closed-loop control: The execution of each step depends on the confirmation signal from the sensor of the previous step, forming a strict closed-loop control logic that ensures reliable and conflict-free action.

[0090] The advantages of this solution over traditional solutions are:

[0091] Automation: The entire replacement process does not require manual intervention for moving the moving die table 13, positioning, and clamping.

[0092] Efficiency: Multiple moving die tables 13 are preloaded, and the rotary table 22 rotates quickly to position, significantly reducing the mold exchange time (SMED).

[0093] Safety: Sensor interlocking ensures that personnel are kept away from dangerous areas such as the press closing area and the moving path of the moving die table 13.

[0094] Integration: Cleaning and detection functions are integrated into the mold replacement process, improving the efficiency and quality control of moving die table 13 maintenance.

[0095] Precision: The sensor system ensures the repeatability of the positioning and installation of the moving die table 13;

[0096] Self-locking reliability: The unilateral self-locking design of the clamping device 29 provides additional safety during the pullback and push process, preventing accidental falling of the moving die table 13.

[0097] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify a subject or action, without necessarily requiring or implying any such actual relationship or order between such subjects or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without further constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0098] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous further modifications and changes can be apparent to one skilled in the art without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A multi-link press with multifunctional switching detection of molds, characterized in that: The invention comprises a machine body (1), a crossbeam (11) is installed above the machine body (1), a slider (12) is installed at the bottom of the crossbeam (11), the outer wall of the slider (12) is slidably installed on the machine body (1), a movable mold table (13) is provided on the machine body (1) near the bottom of the slider (12), a water collecting tank (14) is installed on one side of the machine body (1), and a mold detection device (15) and a mold cleaning device (16) are fixedly installed on the water collecting tank (14), and the multi-link press with multifunctional switching detection of the mold also includes a fast transfer switching mechanism (2) and a self-locking clamping linkage mechanism (3); The rapid transport switching mechanism (2) is arranged in the water collecting pool (14), and the rapid transport switching mechanism (2) is used for replacing and cleaning the movable mold table (13); The self-locking clamping linkage mechanism (3) is arranged in the movable mold table (13), and the self-locking clamping linkage mechanism (3) is used for self-locking when the movable mold table (13) is replaced.

2. A multi-link press with multifunctional mold switching detection according to claim 1, characterized in that: The rapid transfer switching mechanism (2) includes a support (21), the support (21) is fixedly installed in the water collection tank (14), a turntable (22) is rotatably installed on the upper surface of the support (21), a through hole is opened in the middle of the turntable (22), a driving device (23) is fixedly installed in the middle of the water collection tank (14) through the through hole, and a clamping device is installed on the driving shaft of the driving device (23).

3. The multi-link press with multifunctional mold switching detection according to claim 2, characterized in that: A cross guide groove (24) is provided on the upper surface of the turntable (22), the movable mold platform (13) is slidably installed in the cross guide groove (24), the side wall of the cross guide groove (24) is evenly provided with first positioning holes (25), and a drainage hole (26) is provided in the cross guide groove (24).

4. The multi-link press with multifunctional mold switching detection according to claim 3, characterized in that: The machine body (1) is provided with a mounting slot, and the mounting slot and the cross guide slot (24) are provided at the same level. The mounting slot of the machine body (1) is provided with a second positioning hole (27) and a limiting slot (28), respectively. The limiting slot (28) is used for guiding and controlling the movable mold table (13), and the second positioning hole (27) is used for positioning and fixing the movable mold table (13).

5. The multi-link press with multifunctional mold switching detection according to claim 4, characterized in that: A ring gear (201) is fixedly mounted on the bottom of the turntable (22), a driving gear (202) is meshed with an inner tooth surface of the ring gear (201), a driving motor is fixedly mounted in the middle of the driving gear (202), and the driving motor is mounted in the middle of the support platform (21).

6. The multi-link press with multifunctional mold switching detection according to claim 1, characterized in that: The self-locking clamping linkage mechanism (3) comprises an L-shaped rack clamp (31), the movable die table (13) is provided with a control groove, the L-shaped rack clamp (31) is slidably mounted in the control groove of the movable die table (13), the tooth surface of the L-shaped rack clamp (31) is meshed with a rotating gear disc (32), the rotating gear disc (32) is rotatably mounted in the control groove of the movable die table (13), a rotating disc (33) is fixedly mounted on the lower surface of the middle part of the rotating gear disc (32), and the rotating disc (33) is symmetrically provided with an arc-shaped extrusion groove (34).

7. The multi-link press with multifunctional mold switching detection according to claim 6, characterized in that: An extrusion column (35) is slidably mounted in the arc-shaped extrusion groove (34), a slide plate (36) is fixedly mounted on the lower surface of the extrusion column (35), both ends of the slide plate (36) are slidably mounted in the control groove of the movable die table (13), a positioning rod (37) is evenly fixedly mounted on the side of the slide plate (36) away from the turntable (33), and the outer surface of the positioning rod (37) away from the end of the slide plate (36) is slidably mounted in the control groove of the movable die table (13).

8. The multi-link press with multifunctional mold switching detection according to claim 7, characterized in that: The outer surface of the positioning rod (37) is sleeved with a compression spring (38), one end of the compression spring (38) is fixedly mounted on the slide plate (36), and the other end of the compression spring (38) is fixedly mounted in the control groove of the movable mold table (13), and a fixed splint (39) is fixedly mounted on the outer surface of the movable mold table (13) near the side of the L-shaped rack splint (31).

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