A dual-spindle high-speed and high-efficiency vertical machining center

Abstract

The present application relates to a dual-spindle high-speed and high-efficiency vertical machining center, and relates to the technical field of vertical machining centers, including a machine tool body, an X-axis, a Y-axis, a moving mechanism, a first Z-axis, a second Z-axis, two lifting mechanisms, and a synchronization holding device, wherein the synchronization holding device includes: a connecting block, movable on the first Z-axis; a fixed block, arranged on the second Z-axis; a sensing component, arranged on the fixed block; a driving mechanism, arranged on the first Z-axis and used to drive the connecting block to move, the driving mechanism starts to drive the connecting block to be plugged and installed on the fixed block; or, the driving mechanism starts to drive the connecting block to be disengaged from the fixed block and the sensing component is shut down for operation. The present application improves the machining quality and adaptability of the machining center by having the sensing component monitor when machining two identical workpieces, and shutting down the sensing component when synchronization is not required.

Description

Technical Field

[0001] The present application relates to the technical field of machining centers, and in particular, to a double-spindle high-speed and high-efficiency vertical machining center. Background Art

[0002] A machining center, abbreviated as CNC, is a high-efficiency automatic machine tool composed of mechanical equipment and a numerical control system and used for machining workpieces with complex shapes. The machining center is equipped with a tool magazine and has an automatic tool change function, and is a numerically controlled machine tool for multi-process machining after a workpiece is clamped once.

[0003] Existing double-spindle machining centers include two types. One is driven by the same driving device. Although it can improve the running synchronization of the double spindles, it can only complete the same processes. Therefore, this machining center can only machine two identical workpieces at the same time and cannot machine two different workpieces, resulting in low adaptability of the machining center. The other is to control two spindles through two different control centers. Although it can machine two different workpieces, when machining two identical workpieces, the cooperation between the two workpieces during machining is poor due to the two driving devices, reducing the machining quality of the machining center, so that both machining quality and adaptability cannot be achieved at the same time. Summary of the Invention

[0004] In order to improve machining quality and adaptability, the present application provides a double-spindle high-speed and high-efficiency vertical machining center.

[0005] A double-spindle high-speed and high-efficiency vertical machining center provided by the present application adopts the following technical solutions:

[0006] A double-spindle high-speed and high-efficiency vertical machining center includes a machine tool body, an X-axis slidably arranged on the machine tool body, and a Y-axis slidably arranged on the X-axis. A moving mechanism for driving the X-axis and the Y-axis respectively is arranged on the machine tool body. A first Z-axis, a second Z-axis and two lifting mechanisms for driving the first Z-axis and the second Z-axis to move respectively are arranged on the machine tool body. The double-spindle high-speed and high-efficiency vertical machining center further includes a synchronization maintaining device arranged on the first Z-axis and the second Z-axis and used for maintaining the synchronization of the first Z-axis and the second Z-axis. The synchronization maintaining device includes:

[0007] A connecting block, the connecting block is movably arranged on the first Z-axis;

[0008] A fixing block, the fixing block is arranged on the second Z-axis;

[0009] An induction component, the induction component is arranged on the fixing block and is connected to the connecting block and is electrically connected to the lifting mechanism and the moving mechanism;

[0010] A driving mechanism, which is arranged on the first Z-axis and is used to drive the connecting block to move. When the driving mechanism is started, it drives the connecting block to be inserted and installed on the fixed block. After the fixed block and the connecting block have a relative displacement, the sensing component gives an alarm and controls the lifting mechanism and the moving mechanism to suspend operation; or, when the driving mechanism is started, it drives the connecting block to disengage from the fixed block and the sensing component shuts down.

[0011] By adopting the above technical solution, when machining two identical workpieces, the driving mechanism is started to drive the connecting block to be inserted into the fixed block, and the sensing component monitors the positions of the connecting block and the fixed block. Then the machining center is started for machining, the moving mechanism is started to drive the X-axis and the Y-axis to move, and the two lifting mechanisms respectively drive the first Z-axis and the second Z-axis to move; when there is an out-of-sync situation between the first Z-axis and the second Z-axis, a relative displacement is generated between the fixed block and the connecting block. Therefore, the sensing component senses and gives an alarm while controlling the moving mechanism and the lifting mechanism to stop running. Then the staff checks the cause of the fault. After waiting for the fault to be eliminated, the machining center is started and the synchronization is continuously monitored, thereby improving the quality of the machining center. At the same time, when the first Z-axis and the second Z-axis need to machine different products without synchronization, the driving mechanism is started to drive the connecting block to disengage from the fixed block, and the sensing component is turned off. Therefore, the first Z-axis and the second Z-axis can be machined separately, thereby improving the machining quality and adaptability of the machining center. Moreover, the convenience of the machine tool also improves the machining efficiency of the machining center, making the machining of the machining center more high-speed and efficient.

[0012] Optionally, the sensing component includes:

[0013] A first sensing block and a second sensing block, which are slidably arranged up and down on the fixed block and are located on the upper and lower sides of the connecting block and cooperate to form a plugging space for plugging and mating with the connecting block;

[0014] Two sensing springs, which are arranged on the fixed block and are respectively connected to the first sensing block and the second sensing block and make the first sensing block and the second sensing block abut against the fixed block for positioning. The connecting block abuts against the first sensing block and the second sensing block for positioning and gives an induction alarm after disengaging from the first sensing block or the second sensing block.

[0015] By adopting the above technical solution, the first sensing block and the second sensing block abut against the upper and lower surfaces of the connecting block to realize the connection between the first sensing block and the second sensing block. When the two Z-axes are out of sync and a relative displacement occurs between the fixed block and the connecting block, the first sensing block or the second sensing block disengages from the connecting block. Therefore, an alarm is given to remind and at the same time the machining center is controlled to stop running for maintenance. After waiting for the fault to be eliminated, the machining center is started to continue monitoring the synchronization, thereby improving the machining quality of the machining center.

[0016] The first sensing block and the second sensing block are positioned by abutting against the fixed block, while the connecting block abuts against the first sensing block and the second sensing block, resulting in a relatively small pressure. Therefore, even a relatively small displacement between the connecting block and the fixed block can be monitored, further improving the machining quality of the machining center and making the machining center operate at high speed and high efficiency.

[0017] Optionally, a bearing block is provided on the first Z-axis, and the driving mechanism includes:

[0018] A driving block, which is slidably arranged on the bearing block in a direction approaching or departing from the fixed block, and the connecting block is rotatably arranged on the driving block;

[0019] A driving component, which is arranged on the first Z-axis and is connected to the connecting block and used to drive the connecting block to rotate;

[0020] A limiting component, which is arranged on the bearing block and is connected to the connecting block and used to limit the rotation of the connecting block. When the driving component drives the connecting block to rotate until it is aligned with the insertion space, the connecting block cannot rotate under the action of the limiting component and approaches the fixed block until it is inserted and matched with the insertion space.

[0021] By adopting the above technical solution, when the driving component is started to drive the connecting block to rotate, the connecting block is rotated until it is aligned with the insertion space. At the same time, the connecting block abuts against the limiting component for limiting and cannot rotate. Therefore, the connecting block drives the driving block to move together under the action of the driving component, so that the connecting block approaches the fixed block, and the connecting block is inserted and installed into the insertion space, thereby realizing the monitoring of the synchronization of the two spindles. When monitoring is not required, the driving component is started to drive the connecting block to move away from the fixed block and disengage from the fixed block. Then, the connecting block moves back and rotates back to its original position under the action of the driving component.

[0022] Through the cooperation of rotation and movement, compared with the movement of the connecting block, the space occupied by the driving structure when driving the connecting block to move is reduced. At the same time, the distance between the connecting block and the fixed block after the connecting block is received is also increased, reducing the probability of collision between the connecting block and the fixed block and improving the safety of the machining center during operation.

[0023] Optionally, the driving component includes:

[0024] A rotating block, which is rotatably arranged on the first Z-axis;

[0025] A driving member, which is arranged on the rotating block and the piston rod of the driving member is rotatably connected to the connecting block.

[0026] By adopting the above technical solution, when the driving member is activated, the piston rod extends to drive the connecting block to rotate, causing the connecting block to abut against the limiting component for positioning. Therefore, the connecting block pulls the driving block to move under the action of the driving member; when the piston rod of the driving member retracts, it pulls the connecting block away from the fixed block, and then the connecting block rotates under the action of the driving rod while pulling the driving block back, thereby realizing the rotation of the connecting block and the return movement of the driving block to the original position.

[0027] Optionally, the limiting component includes:

[0028] A limiting block, which is arranged on the first Z-axis. The connecting block abuts against the limiting block for positioning, so that the connecting block cannot continue to rotate and approach the fixed block. A connecting groove is formed on the limiting block along the sliding direction of the connecting block;

[0029] A guiding block, which is arranged on the connecting block. The sliding of the connecting block drives the guiding block to be slidably installed on the connecting groove for guiding and positioning.

[0030] By adopting the above technical solution, the connecting block rotates and approaches the limiting block, causing the connecting block to abut against the limiting block for positioning and unable to continue rotating. Then the connecting block slides close to the fixed block under the action of the driving component. The connecting block drives the guiding block to be slidably installed on the connecting groove for guiding and positioning, making it easier for the connecting block to be inserted and installed into the insertion space. At the same time, when the connecting block is separated from the fixed block, the guiding block is also slidably installed on the connecting groove to guide the sliding of the connecting block. Therefore, the probability that the connecting block generates pressure on the first sensing block or the second sensing block under the action of the driving member and damages the sensing component is reduced, thereby realizing the limitation of the connecting block and improving the processing quality of the machining center.

[0031] Optionally, when the connecting block is inserted and matched with the insertion space, the guiding block abuts against the limiting block for positioning.

[0032] By adopting the above technical solution, the guiding block abuts against the limiting block for positioning, thereby positioning the position of the connecting block, improving the accuracy of the insertion and matching position between the connecting block and the fixed block, improving the accuracy of monitoring synchronization, and improving the processing quality of the machining center.

[0033] Optionally, the connecting block is rotatably connected to the driving block through a rotating shaft. When the connecting block is inserted and matched with the fixed block, the rotating shaft is located at one end of the connecting block away from the fixed block. When the connecting block is separated from the fixed block for storage, the top end of the connecting block is located on the side of the rotating shaft close to the fixed block. The driving component is arranged on the first Z-axis above the rotating shaft; a locking component for positioning the connecting block during storage is arranged on the first Z-axis.

[0034] By adopting the above technical solution, the top of the connecting block is located on the side of the rotating shaft close to the fixed block, so that when the driving component is started to drive the connecting block, the connecting block is first pushed to rotate, and then the connecting block moves under the action of the limiting component, reducing the probability of disorder in the operation sequence of the connecting block and improving the stability of the connecting block during movement. Therefore, the monitoring effect is improved. At the same time, when the connecting block is stored, the locking component locks the position of the connecting block, reducing the probability of displacement of the connecting block during storage, and also reducing the pulling force of the connecting block on the driving component, improving the stability during monitoring. Therefore, the monitoring effect is further improved, and the processing quality and adaptability of the machining center are improved.

[0035] Optionally, the locking component includes:

[0036] A locking block, which is arranged on the first Z-axis, and the connecting block abuts against the locking block for positioning;

[0037] An electromagnet, which is snap-fitted on the locking block and adsorbs the connecting block on the electromagnet for positioning after being energized.

[0038] By adopting the above technical solution, the connecting block rotates and abuts against the locking block for positioning, and then the electromagnet is energized to adsorb the connecting block for positioning. When the synchronization needs to be monitored, the electromagnet is de-energized, and then the connecting block can rotate away from the locking block and close to the fixed block, so as to realize the positioning of the connecting block.

[0039] Optionally, a cleaning component for cleaning the connecting block is arranged on the fixed block, and the cleaning component includes:

[0040] A cleaning block, which is arranged on the fixed block;

[0041] A cleaning sponge, which is arranged on the cleaning block and presses against the connecting block and is used for cleaning water and impurities on the connecting block.

[0042] By adopting the above technical solution, after the connecting block moves close to the fixed block, the connecting block moves into contact with the cleaning sponge. Therefore, the cleaning sponge cleans the water and impurities on the cleaning block, reducing the adverse effects of water and impurities on monitoring, improving the monitoring effect of synchronization, and improving the processing quality and adaptability of the machining center.

[0043] Optionally, a guiding angle is provided on the connecting block to facilitate contact with the cleaning sponge.

[0044] By adopting the above technical solution, the guiding angle guides the connecting block, reducing the probability of the cleaning sponge being squeezed and damaged, improving the cleaning effect of the cleaning sponge on water and impurities, and improving the processing quality of the machining center.

[0045] In summary, the present application includes at least one of the following beneficial technical effects:

[0046] When processing two identical workpieces, the driving mechanism is activated to drive the connecting block to be inserted into the fixed block, and the sensing component monitors the positions of the connecting block and the fixed block. Then the machining center is activated for processing. When there is an out-of-sync situation between the first Z-axis and the second Z-axis, the sensing component senses and gives an alarm while controlling the moving mechanism and the lifting mechanism to stop running. Then the staff checks the cause of the fault. After the fault is eliminated, the machining center is activated and the monitoring of synchronization continues, thereby improving the quality of the machining center. At the same time, when synchronization is not required, the driving mechanism is activated to drive the connecting block to disengage from the fixed block, and the sensing component is turned off. Therefore, the first Z-axis and the second Z-axis can be processed separately, thus improving the machining quality and adaptability of the machining center. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a three-dimensional structural schematic diagram of the present application;

[0048] Figure 2 is a structural schematic diagram of the synchronization maintaining device, the cleaning component and the locking component in the present application;

[0049] Figure 3 is Figure 2 a sectional schematic diagram taken along A-A in

[0050] Reference numerals: 1, machine tool body; 11, X-axis; 12, Y-axis; 13, first Z-axis; 14, second Z-axis; 15, bearing block; 16, moving hole; 17, rotating shaft; 2, synchronization maintaining device; 21, connecting block; 22, fixed block; 23, fixed groove; 24, installation groove; 25, communication hole; 3, driving mechanism; 31, driving block; 32, driving component; 321, rotating block; 322, driving member; 33, limiting component; 34, limiting block; 35, guiding block; 351, positioning portion; 352, connecting portion; 36, connecting groove; 4, sensing component; 41, first sensing block; 42, second sensing block; 43, sensing spring; 44, mounting plate; 45, insertion space; 5, cleaning component; 51, cleaning block; 52, cleaning sponge; 6, locking component; 61, locking block; 62, electromagnet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] The following Figures 1-3 further describes the present application in detail with reference to the

[0052] The embodiment of the present application discloses a double-spindle high-speed and high-efficiency vertical machining center.

[0053] Referring to Figure 1, the double-spindle high-speed and high-efficiency vertical machining center includes a machine tool body 1, an X-axis 11 horizontally slidably mounted on the machine tool body 1, and a Y-axis 12 slidably mounted on the X-axis 11. A moving mechanism for driving the X-axis 11 and the Y-axis 12 respectively is provided on the machine tool body 1. A first Z-axis 13 and a second Z-axis 14 are vertically slidably provided on the machine tool body 1. Two lifting mechanisms for driving the first Z-axis 13 and the second Z-axis 14 to move vertically respectively are also provided on the machine tool body 1. It further includes a synchronization maintaining device 2 provided on the first Z-axis 13 and the second Z-axis 14 and used for maintaining the synchronization of the first Z-axis 13 and the second Z-axis 14.

[0054] Referring to Figure 1 and Figure 2 , both the moving mechanism and the lifting mechanism are servo motor and lead screw structures in the prior art. The synchronization maintaining device 2 includes a connecting block 21, a fixing block 22, a driving mechanism 3 and an induction component 4. The connecting block 21 and the fixing block 22 are respectively located on the side walls of the opposite sides of the first Z-axis 13 and the second Z-axis 14.

[0055] Referring to Figure 1 and Figure 3 , the connecting block 21 is rotatably mounted on the side wall of the first Z-axis 13 through a rotating shaft 17, while the fixing block 22 is fixedly mounted on the side wall of the second Z-axis 14 and is in a horizontal state. The rotating shaft 17 is in a horizontal state and its axis is parallel to the side wall of the second Z-axis 14 where the fixing block 22 is mounted, so that when the connecting block 21 rotates, it rotates in the direction of approaching or departing from the fixing block 22. A fixing groove 23 is opened at one end of the fixing block 22 close to the connecting block 21. Installation grooves 24 in a vertical state are opened on both the upper and lower surfaces of the fixing block 22. A communication hole 25 communicating with the fixing groove 23 is opened at the bottom of the installation groove 24.

[0056] Referring to Figure 1 and Figure 2 , the induction component 4 is provided on the fixing block 22 and is connected to the connecting block 21 and electrically connected to the moving mechanism and the lifting mechanism. The driving mechanism 3 is provided on the first Z-axis 13 and is used to drive the connecting block 21 to move. When the driving mechanism 3 is started, it drives the connecting block 21 to extend into the fixing groove 23 to achieve plug-in fit with the fixing block 22. When relative displacement occurs between the connecting block 21 and the fixing block 22, the induction component 4 controls to give an alarm and controls the moving mechanism and the lifting mechanism to suspend operation, and then detects the cause of the fault. After the fault is eliminated, the machining center restarts, and the induction component 4 continues to monitor the synchronization; when there is no need to monitor the synchronization, the driving mechanism 3 drives the connecting block 21 and the fixing block 22 to disengage and the induction component 4 shuts down.

[0057] Referring to Figure 2 and Figure 3, the sensing component 4 includes a first sensing block 41, a second sensing block 42, and two sensing springs 43. The first sensing block 41 and the second sensing block 42 are respectively installed vertically and slidably in two installation grooves 24 and are located on the upper and lower sides of the connecting block 21. Installation plates 44 are detachably installed at the openings of the two installation grooves 24 by screws. The two sensing springs 43 are respectively fixedly installed on the side walls of the two installation plates 44 opposite to the first sensing block 41 and the second sensing block 42. The first sensing block 41 and the second sensing block 42 are both pressed against the bottom of the installation groove 24 under the action of the sensing springs 43. At the same time, the first sensing block 41 and the second sensing block 42 both pass through the communication hole 25 and extend into the fixing groove 23, so that an insertion space 45 is formed between the opposite side walls of the first sensing block 41 and the second sensing block 42.

[0058] A control board is fixedly installed on the machine tool body 1. The control board is electrically connected to the first sensing block 41 and the second sensing block 42. An alarm lamp electrically connected to the control board is fixedly installed on the machine tool body 1. At the same time, the control board is electrically connected to the moving mechanism and the lifting mechanism; the connecting block 21 is inserted and installed in the insertion space 45, so that there is an active gap between the upper and lower surfaces of the connecting block 21 and the installation groove 24.

[0059] The side walls of the connecting block 21 are in contact with the opposite side walls of the first sensing block 41 and the second sensing block 42, so that the first sensing block 41 and the second sensing block 42 can be connected to form a circuit. Through the contact state, the force between the connecting block 21 and the first sensing block 41 and the second sensing block 42 can be designed to be smaller under the condition of satisfying the connection, so that electrical connection can be achieved with a smaller force. Therefore, a relatively small relative displacement of the connecting block 21 and the fixed block 22 in the vertical direction can make the connecting block 21 separate from the first sensing block 41 or the second sensing block 42, improving the accuracy during monitoring. After the connecting block 21 separates from the first sensing block 41 or the second sensing block 42, the control board receives a signal of circuit disconnection, the control board controls the alarm lamp to start for alarm, and at the same time, the control board controls the moving mechanism and the lifting mechanism to stop running, and then maintenance is carried out. After troubleshooting, then the machining center continues to start, and the sensing component 4 continues to monitor synchronization.

[0060] A cleaning component 5 for cleaning the connecting block 21 is arranged on the fixed block 22, and there are two cleaning components 5 for cleaning the upper and lower surfaces of the connecting block 21; the cleaning component 5 includes a cleaning block 51 and a cleaning sponge 52. The cleaning block 51 is fixedly installed on the side wall of the fixed block 22, and the cleaning sponge 52 is fixedly installed on the side wall of the fixed block 22 close to the connecting block 21. At the same time, the cleaning sponge 52 is used to clean the impurities and water on the connecting block 21; a guiding angle is opened on the connecting block 21, and the guiding angle is used to squeeze the cleaning sponge 52 so that the cleaning sponge 52 contacts the connecting block 21 to realize the cleaning of water and impurities.

[0061] Reference Figure 1 、 Figure 2 and Figure 3 , the driving mechanism 3 includes a driving block 31, a driving component 32 and a limiting component 33. A bearing block 15 is fixedly installed on the side wall of the first Z-axis 13 close to the second Z-axis 14. A horizontal moving hole 16 is provided on the side wall of the bearing block 15. The driving block 31 is slidably installed on the moving hole 16, and the sliding direction of the driving block 31 is along the direction of approaching or departing from the fixed block 22. A rotating shaft 17 is fixedly installed on the side wall of the driving block 31. One end of the connecting block 21 is rotatably installed on the rotating shaft 17. When monitoring the synchronization, the end of the connecting block 21 away from the rotating shaft 17 horizontally extends outside the bearing block 15 and is inserted and installed in the insertion space 45; when not monitoring, the top end of the connecting block 21 rotates upward above the bearing block 15 for storage, and the top end of the connecting block 21 is located on the side of the rotating shaft 17 close to the fixed block 22.

[0062] Reference Figure 1 and Figure 3 , the driving component 32 is arranged on the first Z-axis 13 and is connected to the connecting block 21 and used to drive the connecting block 21 to rotate. The driving component 32 includes a rotating block 321 and a driving member 322. The rotating block 321 is rotatably installed on the side wall of the first Z-axis 13 and is located above the bearing block 15; the driving member 322 is a driving cylinder. The driving cylinder is fixedly installed on the rotating block 321, and the piston rod of the driving cylinder is rotatably connected to the side wall of the connecting block 21. At the same time, the rotation point of the piston rod of the driving cylinder and the connecting block 21 is located outside the bearing block 15.

[0063] Reference Figure 2 and Figure 3 , the limiting component 33 is arranged on the bearing block 15 and is used to limit the rotation of the connecting block 21. When the connecting block 21 rotates to align with the insertion space 45, the connecting block 21 abuts against the limiting component 33 for positioning and cannot continue to rotate. Therefore, the connecting block 21 pulls the driving block 31 to move under the action of the driving cylinder, so that the connecting block 21 slides close to the fixed block 22, and the connecting block 21 is inserted and installed in the insertion space 45 for positioning; the piston rod of the driving cylinder retracts to pull the connecting block 21 away from the insertion space 45, and then the connecting block 21 rotates and pulls the driving block 31 back, so that the connecting block 21 rotates back to its original position and the driving block 31 moves back to its original position.

[0064] Reference Figure 1 、 Figure 2 and Figure 3, a locking component 6 for positioning the connecting block 21 during storage is provided on the first Z-axis 13. The locking component 6 includes a locking block 61 and an electromagnet 62. The locking block 61 is fixedly installed on the side wall of the first Z-axis 13 and is located above the bearing block 15. When the connecting block 21 rotates to above the bearing block 15 and abuts against the locking block 61 for positioning; a locking groove is formed at one end of the locking block 61 close to the connecting block 21, and the electromagnet 62 is fixedly installed on the locking groove. After the electromagnet 62 is powered on, it adsorbs and positions the connecting block 21, so as to realize the positioning of the connecting block 21 during storage; when simultaneous monitoring is required, the electromagnet 62 is powered off, so the connecting block 21 can rotate freely, and then the connecting block 21 is controlled to communicate with the insertion space 45 for synchronous monitoring.

[0065] Refer to Figure 2 and Figure 3 , the limiting component 33 includes a limiting block 34 and a guiding block 35. The limiting block 34 is fixedly installed on the bearing block 15 and is located below the connecting block 21. The limiting block 34 is located on the side of the rotating shaft 17 close to the fixed block 22. When the connecting block 21 rotates to align with the insertion space 45, the connecting block 21 abuts against the upper surface of the limiting block 34 for positioning, and then the connecting block 21 slides close to the insertion space 45 under the limiting action of the limiting block 34; a connecting groove 36 is formed at one end of the limiting block 34 close to the rotating shaft 17 along the sliding direction of the connecting block 21.

[0066] The guiding block 35 is located on the side of the limiting block 34 away from the fixed block 22. The guiding block 35 includes a positioning portion 351 and a connecting portion 352 integrally arranged together. The positioning portion 351 is located on the side wall of the connecting block 21 close to the limiting block 34. When the connecting block 21 approaches the fixed block 22, it drives the positioning portion 351 to approach the limiting block 34; the connecting portion 352 is located at one end of the positioning portion 351 away from the connecting block 21 and close to the limiting block 34. After the connecting block 21 abuts against the limiting block 34, the connecting block 21 moves to drive the connecting portion 352 to slide and be installed in the connecting groove 36, so as to realize the guiding and positioning of the movement of the connecting block 21, so that the connecting block 21 can be more accurately inserted and matched with the insertion space 45. After the connecting block 21 is inserted and matched with the insertion space 45, the positioning portion 351 abuts against the limiting block 34 for positioning; at the same time, the sliding fit between the connecting portion 352 and the connecting groove 36 also reduces the probability of damage to the first sensing block 41 when the connecting block 21 moves back under the action of the driving cylinder.

[0067] The working principle of the embodiment of the present application is as follows:

[0068] When synchronism needs to be monitored, the electromagnet 62 is powered off to unlock the locking of the connecting block 21, and then the driving cylinder is activated to drive the connecting block 21 to rotate downward, so that the connecting block 21 abuts against the limiting block 34 for positioning. Then, under the action of the limiting block 34, the connecting block 21 pulls both the driving block 31 and the connecting block 21 close to the fixed block 22, so that the connecting portion 352 is slidably installed on the connecting groove 36 for guiding and positioning until the connecting block 21 extends into the fixed groove 23 and contacts the first induction block 41 and the second induction block 42, thereby connecting the first induction block 41 and the second induction block 42 to form a circuit. At the same time, the positioning portion 351 abuts against the limiting block 34 for positioning, and then the machining center is started to monitor the synchronism of the two main shafts.

[0069] When relative displacement is found between the two main shafts, the connecting block 21 is separated from the first induction block 41 or the second induction block 42, and the alarm lamp gives an alarm and the machining center pauses. Then, the machining center is repaired until the fault is eliminated, and then the machining center is started to continue monitoring the synchronism of the two main shafts. When synchronism does not need to be monitored, the induction component 4 stops running, and the driving cylinder is activated to drive the connecting block 21 to move out of the insertion space 45. Then, the connecting block 21 continues to move until the connecting portion 352 is separated from the connecting groove 36. Then, the connecting block 21 rotates and pulls the driving block 31 back at the same time, so that the connecting block 21 abuts against the locking block 61 for positioning. Finally, the electromagnet 62 is powered on to adsorb and position the connecting block 21, thereby improving the machining quality and adaptability of the machining center.

[0070] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A dual-spindle high-speed and high-efficiency vertical machining center, comprising a machine tool body (1), an X-axis (11) slidably arranged on the machine tool body (1), and a Y-axis (12) slidably arranged on the X-axis (11), wherein the machine tool body (1) is provided with a moving mechanism for driving the X-axis (11) and the Y-axis (12) respectively, and characterized in that: The machine tool body (1) is provided with a first Z axis (13), a second Z axis (14) and two lifting mechanisms for driving the first Z axis (13) and the second Z axis (14) to move respectively, and also includes a synchronization maintaining device (2) provided on the first Z axis (13) and the second Z axis (14) and used to maintain the synchronization of the first Z axis (13) and the second Z axis (14), wherein the synchronization maintaining device (2) includes: A connecting block (21), wherein the connecting block (21) is movably arranged on the first Z axis (13); A fixed block (22), wherein the fixed block (22) is arranged on the second Z axis (14); An induction component (4), the induction component (4) being arranged on the fixed block (22) and connected to the connecting block (21) and electrically connected to the lifting mechanism and the moving mechanism; A driving mechanism (3), wherein the driving mechanism (3) is arranged on the first Z axis (13) and is used to drive the connecting block (21) to move, wherein the driving mechanism (3) is started to drive the connecting block (21) to be plugged and installed on the fixed block (22), and the sensing component (4) issues an alarm after the fixed block (22) and the connecting block (21) are relatively displaced and controls the lifting mechanism and the moving mechanism to stop operating; or, the driving mechanism (3) is started to drive the connecting block (21) to separate from the fixed block (22) and the sensing component (4) is shut down; The sensing component (4) comprises: A first sensing block (41) and a second sensing block (42), wherein the first sensing block (41) and the second sensing block (42) are slidably disposed on the fixing block (22) and are located at upper and lower sides of the connecting block (21) and cooperate to form a plug-in space (45) that plugs with the connecting block (21); Two sensing springs (43), the two sensing springs (43) being arranged on the fixed block (22) and respectively connected to the first sensing block (41) and the second sensing block (42) so as to make the first sensing block (41) and the second sensing block (42) abut against the fixed block (22) for positioning, the connecting block (21) abuts against the first sensing block (41) and the second sensing block (42) for positioning and performs sensing alarm after being separated from the first sensing block (41) or the second sensing block (42); A bearing block (15) is arranged on the first Z axis (13), and the driving mechanism (3) comprises: A driving block (31), wherein the driving block (31) is slidably disposed on the bearing block (15) in a direction approaching or moving away from the fixed block (22), and the connecting block (21) is rotatably disposed on the driving block (31); A driving assembly (32), the driving assembly (32) being arranged on the first Z axis (13) and connected to the connecting block (21) and used for driving the connecting block (21) to rotate; A limit assembly (33), wherein the limit assembly (33) is arranged on the bearing block (15) and is connected to the connecting block (21) and is used to limit the rotation of the connecting block (21); when the driving assembly (32) drives the connecting block (21) to rotate to align with the plug-in space (45), the connecting block (21) cannot rotate under the action of the limit assembly (33) and approaches the fixed block (22) until it is plugged into the plug-in space (45).

2. A dual-spindle high-speed and high-efficiency vertical machining center according to claim 1, characterized in that: The driving assembly (32) comprises: A rotating block (321), wherein the rotating block (321) is rotatably disposed on the first Z axis (13); A driving member (322), wherein the driving member (322) is arranged on the rotating block (321) and a piston rod of the driving member (322) is rotationally connected to the connecting block (21).

3. A dual-spindle high-speed and high-efficiency vertical machining center according to claim 1, characterized in that: The limiting component (33) comprises: a limit block (34), the limit block (34) being arranged on the first Z axis (13), the connection block (21) being positioned against the limit block (34) so ​​that the connection block (21) cannot continue to rotate and approaches the fixed block (22), and a connection groove (36) being provided on the limit block (34) along the sliding direction of the connection block (21); A guide block (35), wherein the guide block (35) is arranged on the connecting block (21), and the connecting block (21) slides to drive the guide block (35) to slide and be installed on the connecting groove (36) for guiding and positioning.

4. A dual-spindle high-speed and high-efficiency vertical machining center according to claim 3, characterized in that: When the connection block (21) is plugged into the plug-in space (45), the guide block (35) abuts against the limit block (34) for positioning.

5. The dual-spindle high-speed and high-efficiency vertical machining center according to claim 1, characterized in that: The connecting block (21) is rotatably connected to the driving block (31) via a rotating shaft (17); when the connecting block (21) is plugged into the fixed block (22), the rotating shaft (17) is located at an end of the connecting block (21) away from the fixed block (22); when the connecting block (21) is separated from the fixed block (22) for storage, the top end of the connecting block (21) is located at a side of the rotating shaft (17) close to the fixed block (22); the driving assembly (32) is arranged on a first Z-axis (13) located above the rotating shaft (17); and a locking assembly (6) is arranged on the first Z-axis (13) for positioning the connecting block (21) when it is stored.

6. A dual-spindle high-speed and high-efficiency vertical machining center according to claim 5, characterized in that: The locking assembly (6) comprises: A locking block (61), wherein the locking block (61) is arranged on the first Z axis (13), and the connecting block (21) abuts against the locking block (61) for positioning; The electromagnet (62) is mounted on the locking block (61) by snapping and, when powered on, causes the connecting block (21) to be adsorbed on the electromagnet (62) for positioning.

7. The dual-spindle high-speed and high-efficiency vertical machining center according to claim 1, characterized in that: The fixing block (22) is provided with a cleaning component (5) for cleaning the connecting block (21), and the cleaning component (5) comprises: a cleaning block (51), wherein the cleaning block (51) is arranged on the fixing block (22); A cleaning sponge (52) is arranged on the cleaning block (51) and pressed against the connecting block (21) and is used to clean water and impurities on the connecting block (21).

8. A dual-spindle high-speed and high-efficiency vertical machining center according to claim 7, characterized in that: The connecting block (21) is provided with a guide angle for facilitating contact with the cleaning sponge (52).

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