Numerical control milling machine capable of carrying out multi-point positioning structure on workpiece

Abstract

The invention discloses a numerical control milling machine capable of performing multi-point positioning on a workpiece. The numerical control milling machine comprises a fixed table, a collecting box and a flow guide plate. According to the numerical control milling machine, the anti-blocking mechanism is driven to operate by utilizing kinetic energy generated by rotation of the first electric sliding table, so that chippings adhered to the separation plate can be cleaned through the anti-blocking mechanism in the operation process of the numerical control milling machine, and the linkage cleaning mechanism can be driven to blow and clean residual cooling liquid on the flow guide plate; meanwhile, kinetic energy generated in the lifting process of the lifting milling mechanism can be utilized, extraction of recycled cooling liquid in the collecting box and liquid conveying work of the liquid storage box can be achieved through the piston power mechanism, the overall structure linkage performance of the numerical control milling machine can be improved, meanwhile, driving resources can be effectively utilized and linked, and the machining efficiency of the numerical control milling machine is improved. The driving resource utilization rate and the environment-friendly effect of the numerical control milling machine are improved, and meanwhile multi-point positioning can be conducted on workpieces placed on the placing table through the positioning mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control machining, in particular to a numerical control milling machine capable of performing multi-point positioning on a workpiece. Background Art

[0002] A CNC milling machine refers to a milling machine controlled by electronic digital signals. A CNC milling machine is an automatic processing equipment developed on the basis of a general milling machine. The processing technology of the two is basically the same, and the structure is also relatively similar. There are many types of CNC milling machines, mainly including two types of CNC milling machines: without tool magazine and with tool magazine. CNC milling machines with tool magazines are also called machining centers. In the process of processing and milling workpieces by CNC milling machines, it is necessary to position the workpiece to be processed, thereby ensuring the stability of the workpiece during the milling process.

[0003] However, the existing CNC machine tools still have certain defects when in use:

[0004] For example, in a CNC milling machine proposed in application number CN202123348560.0, when it is necessary to change the tool, the tool magazine module must first be moved under the working head, the sprocket assembly first rotates the tool position without the tool to the tool position outside the protective cover, the working head descends to a preset height, the working head releases the tool, and the tool falls into the tool position without the tool, and then the sprocket assembly is rotated to rotate the tool position carrying the target tool to the tool position outside the protective cover, the working head clamps the target tool, and the working head moves upward to a safe height to complete the tool change. Compared with the existing milling machine, the utility model can place a tool position outside the protective cover, and thus can effectively reduce the milling residue from entering the tool magazine when the working head changes the tool, thereby effectively reducing the amount of cleaning of the tool magazine, and thereby reducing the operating cost of the equipment. In actual use, the following problems still exist:

[0005] 1. Although the tool can be easily replaced during the use of the CNC milling machine and the milling residue can be effectively reduced from entering the tool library, the workpiece is simply placed on the workbench during the milling process, which cannot ensure the stability of the workpiece during the processing. This may cause the workpiece to shake during the milling process, which is not conducive to the accuracy of the milling of the workpiece and reduces the use effect of the existing CNC milling machine;

[0006] For example, a cooling device for a CNC milling machine proposed in application number CN202220189975.3 includes a workbench, the workbench is inclined, a bottom plate is symmetrically fixedly installed at the lower end of the workbench, a water tank is fixedly installed between the two bottom plates, and a card slot is symmetrically opened on the inner wall of the water tank. Card strips are movably installed inside the two card slots, and a filter is fixedly installed between the two card strips. A micro water pump is fixedly installed on the inner wall of the water tank, connecting pipes are fixedly installed at both ends of the micro water pump, and a nozzle is fixedly installed at the end of the connecting pipe away from the micro water pump. A processing mechanism is fixedly installed on the upper end of the workbench, and the processing mechanism includes a side plate, and a connecting plate is fixedly installed on the side wall of the side plate at the left end. A vertical plate is fixedly installed on the upper end of the workbench, and a controller is fixedly installed on the side wall of the vertical plate, so that the device can effectively cool the milling cutter of the CNC milling machine, and the cooling water can be reused, saving water resources. In actual use, there are still the following problems:

[0007] 2. In the process of cooling by the cooling device of the CNC milling machine, although the used coolant can be filtered and recycled through the water tank and the filter, and the detachable structure of the filter is set to clean the filter, a micro water pump is required to absorb the coolant separately during the recycling process, and the structure of the CNC milling machine cannot be linked to realize the delivery of the coolant, resulting in a waste of driving resources. At the same time, the filter is prone to blockage in the process of filtering the coolant, which will reduce the filtering effect of the filter on the coolant and the recovery efficiency of the coolant.

[0008] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0009] In view of the above problems, an innovative design is carried out based on the original CNC milling machine with a multi-point positioning structure for the workpiece. Summary of the invention

[0010] The object of the present invention is to provide a CNC milling machine with a multi-point positioning structure for a workpiece, so as to solve the problems of inconvenience in stably positioning the workpiece and low utilization rate of driving resources raised in the above-mentioned background technology.

[0011] To achieve the above object, the present invention provides the following technical solution: a CNC milling machine capable of performing multi-point positioning on a workpiece, comprising a fixed table, a collection box and a guide plate,

[0012] A first electric slide is fixedly mounted on the surface of the fixed platform, a collection box is fixedly connected to one end of the fixed platform, and support legs are fixedly mounted on the bottom of the fixed platform and the collection box;

[0013] A separation plate is installed inside the collection box, an anti-blocking mechanism is connected inside the separation plate, and the anti-blocking mechanism is connected to the collection box;

[0014] A linkage cleaning mechanism is provided inside the collection box, the linkage cleaning mechanism is connected to the anti-blocking mechanism, and one end of the linkage cleaning mechanism is interconnected with the first electric slide;

[0015] The top of the first electric slide is connected to the second electric slide, the top of the second electric slide is fixedly installed with a guide plate, and one end of the guide plate is connected to the linkage cleaning mechanism, a placement table is fixedly installed on the surface of the guide plate, and a positioning mechanism is provided on the surface of the placement table;

[0016] A lifting milling mechanism is fixedly installed on one side of the fixed platform;

[0017] A piston power mechanism is arranged on one side of the lifting and milling mechanism, one end of the piston power mechanism is connected to the collecting box, and the other end of the piston power mechanism is connected to the lifting and milling mechanism.

[0018] Preferably, the anti-blocking mechanism includes a top plate, which is slidably connected to the inside of the collecting box, a limiting hole is provided at the top corner of the top plate, a limiting rod is slidably connected to the inside of the limiting hole, and both ends of the limiting rod are respectively connected to the separation plate and the collecting box, a first spring is wound around the surface of the limiting rod, and the top plate forms a telescopic structure with the collecting box through the first spring.

[0019] By adopting the above technical solution, the anti-blocking mechanism cooperates with the rotation of the active rod and the cam and the extension and retraction of the first spring to perform reciprocating extension and retraction on the separation plate, thereby facilitating the ejection of milling chips stuck inside the separation plate, which is beneficial to effectively clearing the separation plate and improving the efficiency of the CNC milling machine in recovering waste coolant through the separation plate.

[0020] Preferably, the linkage cleaning mechanism includes an active rod, the collecting box is internally rotatably connected to the active rod, the surface of the active rod is fixedly sleeved with a cam, and the cam is in contact with the top plate, one end of the active rod is connected to a connecting chain, and the connecting chain is connected to the first electric slide, the other end of the active rod is fixedly installed with a driving gear, the bottom of the collecting box is fixedly installed with a first piston tube, the internal rotation of the first piston tube is connected to a reciprocating screw, one end of the reciprocating screw is fixedly installed with a driven gear, the surface of the reciprocating screw is sleeved with a first piston plate, and the first piston plate is slidably connected to the first piston tube, one end of the first piston tube is respectively inlaid with an inlet valve and an outlet valve, one end of the outlet valve is connected to a first connecting pipe, one end of the first connecting pipe is connected to an injection seat, and the injection seat is fixedly connected to one end of the guide plate.

[0021] By adopting the above technical scheme, the linkage cleaning mechanism can not only drive the anti-blocking mechanism to perform blockage clearing work, but also can blow away the residual debris adhered to the surface of the guide plate through the jet seat, and at the same time can be linked to the first electric slide, thereby improving the driving resource utilization, functionality and structural linkage of the CNC machine tool.

[0022] Preferably, the reciprocating screw is meshedly connected with the driving gear via a driven gear, and the reciprocating screw forms a reciprocating sliding structure via a first piston plate and a first piston tube.

[0023] By adopting the above technical solution, the reciprocating screw can passively rotate with the active rod by utilizing the meshing connection between the active gear and the driven gear, thereby driving the first piston plate to perform reciprocating piston motion inside the first piston tube, which is beneficial to effectively remove the residual debris on the surface of the guide plate through the outlet valve, the first connecting pipe and the jet seat.

[0024] Preferably, the bottom surface of the guide plate is arranged obliquely, and through holes are provided at equal intervals inside the placement table.

[0025] By adopting the above technical solution, the hollow setting of the placement table can facilitate the dispersion of debris and waste coolant generated during the milling process. The inclined setting of the bottom surface of the guide plate can effectively collect and guide the waste coolant, thereby improving the collection effect of the collection box on the waste coolant.

[0026] Preferably, the positioning mechanism includes a fixed block, fixed blocks are fixedly installed at both ends of the placing table, the internal thread of the fixed block is connected to the first adjusting rod, one end of the first adjusting rod is connected to a connecting shaft, one end of the connecting shaft is connected to a first limit seat, a connecting block is fixedly installed inside the first limit seat, a second adjusting rod is penetrated inside the connecting block and the first limit seat, a sliding block is symmetrically threaded on the surface of the second adjusting rod, and a clamping plate is fixedly installed on one end of the sliding block.

[0027] The adoption of the above technical solution makes it easy to effectively limit workpieces of different specifications through multi-directional adjustment of the positioning mechanism, which is beneficial to multi-point positioning of the workpiece, avoiding shaking of the workpiece during the milling process that causes a decrease in milling accuracy, and improving the use stability of the CNC milling machine.

[0028] Preferably, the first adjusting rod is rotatably connected to the first limiting seat via a connecting shaft, and the second adjusting rod is rotatably connected to the first limiting seat and the connecting block respectively, and the threaded sub-connecting blocks on the second adjusting rod are symmetrically distributed to both ends.

[0029] The adoption of the above technical solution is conducive to multi-directional adjustment of the position of the clamping plate by rotating the first adjusting rod and the second adjusting rod, so that the inner wall of the clamping plate and the outer wall of the workpiece are fitted together, thereby improving the adjustment convenience of the positioning mechanism and the adaptability to the positioning of workpieces of different specifications.

[0030] Preferably, the lifting and lowering milling mechanism includes a second limit seat, a second limit seat is fixedly installed on one side of the fixed platform, a driving rod is installed inside the second limit seat, a movable plate is threadedly sleeved on the surface of the driving rod, a limit block is installed at one end of the movable plate, positioning rods are fixedly installed on both sides of the second limit seat, and the limit block is slidably connected to the second limit seat and the positioning rod, a liquid storage tank is fixedly installed on the surface of the movable plate, second connecting pipes are installed on both sides of the liquid storage tank, a cooling nozzle assembly is connected to the bottom end of the second connecting pipe, and the cooling nozzle assembly is fixedly connected to the bottom surface of the movable plate, a milling assembly is installed at one end of the movable plate, and the positions of the cooling nozzle assembly and the milling assembly correspond.

[0031] The adoption of the above technical scheme makes it easier for the lifting and milling mechanism to drive the piston power mechanism to perform piston movement during the lifting process, so that the lifting mechanism of the CNC milling machine itself can be used to link the piston power mechanism to realize the extraction of waste coolant and the infusion of liquid into the liquid storage tank, thereby improving the structural linkage and drive resource utilization of the CNC milling machine and improving the environmental protection effect of the CNC milling machine.

[0032] Preferably, the piston power mechanism includes a second piston tube, a second piston tube is installed on one side of the lifting and milling mechanism, a sealing sleeve is inlaid on the top end of the second piston tube, a piston rod passes through the inside of the sealing sleeve, a second piston plate is fixedly connected to the bottom end of the piston rod, and the second piston plate is slidably connected to the second piston tube, a second spring is connected between the second piston plate and the top end of the second piston tube, and the second spring is sleeve-connected to the piston rod, a first one-way valve and a second one-way valve are respectively installed on the top end of the second piston tube, one end of the first one-way valve is connected to a liquid inlet pipe, and one end of the liquid inlet pipe is connected to a collecting box, one end of the second one-way valve is connected to a liquid outlet pipe, and the liquid outlet pipe is connected to a liquid storage tank.

[0033] The above technical solution makes it easier for the piston power mechanism to extract the waste coolant collected inside the collection box through the first one-way valve and the liquid inlet pipe during the movement of the piston, and to infuse and replenish the liquid in the storage tank through the second one-way valve and the liquid outlet pipe, thereby improving the structural linkage of the CNC milling machine.

[0034] Preferably, the piston rod forms a sealed sliding structure with the second piston tube through a sealing sleeve, and the second piston plate forms a telescopic reset structure with the second piston tube through a second spring.

[0035] By adopting the above technical solution, the setting of the sealing sleeve can ensure the sealing effect of the sliding connection between the piston rod and the second piston tube, which is beneficial to the effective piston movement of the piston power mechanism and improves the sealing performance and use effect of the piston power mechanism.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. The CNC milling machine with a multi-point positioning structure for workpieces drives the anti-blocking mechanism to operate by utilizing the kinetic energy generated by the rotation of the first electric slide, so that the debris adhered to the separation plate can be cleared by the anti-blocking mechanism during the operation of the CNC milling machine, and the linkage cleaning mechanism can also be driven to blow and clean the residual coolant on the guide plate. At the same time, the kinetic energy generated by the lifting milling mechanism during the lifting process can be utilized to realize the extraction of the recovered coolant in the collection box and the infusion of the liquid storage tank through the piston power mechanism, which is beneficial to improving the overall structural linkage of the CNC milling machine, and at the same time, the driving resources can be effectively utilized and linked, thereby improving the driving resource utilization rate and environmental protection effect of the CNC milling machine;

[0038] 2. The CNC milling machine capable of performing multi-point positioning of the workpiece is provided with a positioning mechanism. The positions of the first limit seat, the slider and the clamping plate can be adjusted respectively by rotating the first adjusting rod and the second adjusting rod, so that the position of the clamping plate can be adjusted accordingly according to the storage of the workpiece, which is beneficial to multi-point positioning of the workpiece placed on the placement table through the positioning mechanism, thereby improving the stability and practicality of the CNC milling machine capable of performing multi-point positioning of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the appearance structure of the present invention from the left side;

[0040] Figure 2 This is a schematic diagram of the appearance structure of the present invention from the rear side;

[0041] Figure 3 It is a schematic diagram of the appearance structure of the present invention from the right side;

[0042] Figure 4 It is a schematic diagram of the connection structure between the separation plate and the linkage cleaning mechanism of the present invention;

[0043] Figure 5 It is a schematic diagram of the side section structure of the linkage cleaning mechanism of the present invention;

[0044] Figure 6 This is a schematic diagram of the separation structure of the guide plate and the positioning mechanism of the present invention;

[0045] Figure 7 It is a schematic diagram of the side section structure of the positioning mechanism of the present invention;

[0046] Figure 8 It is a schematic diagram of the distribution structure of the lifting milling mechanism and the piston power mechanism of the present invention;

[0047] Fig. 9 It is a schematic diagram of the side section structure of the piston power mechanism of the present invention;

[0048] Fig.10 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0049] In the figure: 1, fixed platform; 2, first electric slide; 3, collection box; 4, support leg; 5, separation plate; 6, anti-blocking mechanism; 601, top plate; 602, limit hole; 603, limit rod; 604, first spring; 7, linkage cleaning mechanism; 701, active rod; 702, cam; 703, connecting chain; 704, active gear; 705, first piston tube; 706, reciprocating screw rod; 707, driven gear; 708, first piston plate; 709, inlet valve; 710, outlet valve; 711, first connecting pipe; 712, jet seat; 8, second electric slide; 9, guide plate; 10, placement platform; 11, positioning mechanism; 1101, fixed block; 1102, first adjusting rod; 1103, connecting shaft; 1104, first limit seat; 1105, connecting block; 1106, second adjusting rod; 1107, sliding block; 1108, clamping plate; 12, lifting milling mechanism; 1201, second limit seat; 1202, driving rod; 1203, movable plate; 1204, limit block; 1205, positioning rod; 1206, liquid storage tank; 1207, second connecting pipe; 1208, cooling nozzle assembly; 1209, milling assembly; 13, piston power mechanism; 1301, second piston tube; 1302, sealing sleeve seat; 1303, piston rod; 1304, second piston plate; 1305, second spring; 1306, first one-way valve; 1307, liquid inlet pipe; 1308, second one-way valve; 1309, liquid outlet pipe. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figure 1-4 and Fig.10The present invention provides a technical solution: a CNC milling machine capable of multi-point positioning of a workpiece, comprising a fixed table 1, a collection box 3 and a guide plate 9, a first electric slide 2 is fixedly installed on the surface of the fixed table 1, one end of the fixed table 1 is fixedly connected to the collection box 3, a support leg 4 is fixedly installed on the bottom of the fixed table 1 and the collection box 3, a separation plate 5 is installed inside the collection box 3, an anti-blocking mechanism 6 is connected inside the separation plate 5, and the anti-blocking mechanism 6 is connected to the collection box 3, the anti-blocking mechanism 6 comprises a top plate 601, the top of the collection box 3 is slidably connected to the top plate 601, a limiting hole 602 is provided at the top corner of the top plate 601, and the limiting hole 602 is slidably connected to the limiting rod 60 3, and the two ends of the limit rod 603 are connected to the separation plate 5 and the collection box 3 respectively, the surface of the limit rod 603 is wound with a first spring 604, and the top plate 601 forms a telescopic structure with the collection box 3 through the first spring 604, so that the active rod 701 will displace the top plate 601 through the cam 702 during the process of driving the cam 702 to rotate, and the first spring 604 pulls the top plate 601, so that the top plate 601 can slide and reset on the limit rod 603 through the limit hole 602, and the top plate 601 can be extended and retracted in the gap of the separation plate 5, so as to eject the milling debris blocked in the gap of the separation plate 5 to complete the clearing work.

[0052] Combination Figure 1-6As shown, a linkage cleaning mechanism 7 is arranged inside the collection box 3, the linkage cleaning mechanism 7 is connected to the anti-blocking mechanism 6, one end of the linkage cleaning mechanism 7 is connected to the first electric slide 2, the linkage cleaning mechanism 7 includes an active rod 701, the active rod 701 is rotatably connected inside the collection box 3, a cam 702 is fixedly sleeved on the surface of the active rod 701, and the cam 702 is fitted with the top plate 601, one end of the active rod 701 is connected to a connecting chain 703, and the connecting chain 703 is connected to the first electric slide 2, and the active rod 70 1 is fixedly mounted with a driving gear 704, a first piston tube 705 is fixedly mounted at the bottom of the collecting box 3, a reciprocating screw rod 706 is rotatably connected inside the first piston tube 705, a driven gear 707 is fixedly mounted at one end of the reciprocating screw rod 706, the reciprocating screw rod 706 is meshed and connected with the driving gear 704 through the driven gear 707, a first piston plate 708 is sleeved on the surface of the reciprocating screw rod 706, and the first piston plate 708 is slidably connected with the first piston tube 705, and the reciprocating screw rod 706 is meshed and connected with the driving gear 704 through the driven gear 707. The first piston tube 705 forms a reciprocating sliding structure, one end of the first piston tube 705 is respectively inlaid with an inlet valve 709 and an outlet valve 710, one end of the outlet valve 710 is connected to a first connecting tube 711, one end of the first connecting tube 711 is connected to an air jet seat 712, and the air jet seat 712 is fixedly connected to one end of the guide plate 9, so that the first electric slide 2 can drive the active rod 701 to rotate through the connecting chain 703 during operation, and then can cooperate with the meshing connection between the active gear 704 and the driven gear 707. The reciprocating screw rod 706 is then driven to rotate inside the first piston tube 705, so that the first piston plate 708 can reciprocate and extend inside the first piston tube 705, which is beneficial for air intake through the air intake valve 709 during the reciprocating motion, and exhaust through the air outlet valve 710, the first connecting pipe 711 and the jet seat 712, so as to effectively remove residual debris adhered to the surface of the guide plate 9 during the exhaust process, thereby improving the structural linkage of the CNC milling machine that can perform multi-point positioning of the workpiece.

[0053] Combination Figure 1-3 and Figure 6-7As shown, the top of the first electric slide 2 is connected to the second electric slide 8, the top of the second electric slide 8 is fixedly installed with a guide plate 9, the bottom surface of the guide plate 9 is arranged obliquely, the surface of the guide plate 9 is fixedly installed with a placement table 10, and the interior of the placement table 10 is provided with through holes at equal intervals, and the surface of the placement table 10 is provided with a positioning mechanism 11, the positioning mechanism 11 includes a fixed block 1101, the two ends of the placement table 10 are fixedly installed with the fixed block 1101, the internal thread of the fixed block 1101 is connected with a first adjustment rod 1102, one end of the first adjustment rod 1102 A connecting shaft 1103 is connected, one end of the connecting shaft 1103 is connected to a first limiting seat 1104, the first adjusting rod 1102 is rotatably connected to the first limiting seat 1104 through the connecting shaft 1103, a connecting block 1105 is fixedly installed inside the first limiting seat 1104, a second adjusting rod 1106 is penetrated inside the connecting block 1105 and the first limiting seat 1104, and the second adjusting rod 1106 is rotatably connected to the first limiting seat 1104 and the connecting block 1105 respectively, and the threaded sub-connecting block 1105 on the second adjusting rod 1106 is connected to the first limiting seat 1104 and the connecting block 1105 at both ends. Symmetrically distributed, the surface of the second adjusting rod 1106 is symmetrically threaded with a slider 1107, and one end of the slider 1107 is fixedly installed with a clamping plate 1108. The above makes the oblique setting of the guide plate 9 able to effectively guide the waste coolant and cooperate with the collection box 3 to effectively collect it. The first adjusting rod 1102 can be moved and positioned inside the fixed block 1101 by rotating it, and the first limit seat 1104 can be driven to move through the connecting shaft 1103, so as to adjust the lateral position of the clamping plate 1108. At the same time, by rotating the second adjusting rod 1106, it can be rotated inside the first limit seat 1104 and the connecting block 1105, and then, in conjunction with the symmetrical arrangement of the thread, it can drive the slider 1107 and the clamping plate 1108 to move toward and in the opposite directions, which is beneficial to adjusting the longitudinal position of the clamping plate 1108. In summary, the clamping plate 1108 can be adjusted accordingly according to the size of the workpiece, which is beneficial to the clamping plate 1108 for effective multi-point positioning of the workpiece, thereby improving the stability of the CNC milling machine with a multi-point positioning structure for the workpiece.

[0054] Combination Figure 1-3 and Figure 8-9As shown, a lifting milling mechanism 12 is fixedly installed on one side of the fixed platform 1, and the lifting milling mechanism 12 includes a second limit seat 1201, a second limit seat 1201 is fixedly installed on one side of the fixed platform 1, a driving rod 1202 is installed inside the second limit seat 1201, a movable plate 1203 is threadedly sleeved on the surface of the driving rod 1202, a limiting block 1204 is installed at one end of the movable plate 1203, positioning rods 1205 are fixedly installed on both sides of the second limit seat 1201, and the limiting block 1204 is slidably connected to the second limit seat 1201 and the positioning rod 1205, a liquid storage tank 1206 is fixedly installed on the surface of the movable plate 1203, and second connecting pipes 1207 are installed on both sides of the liquid storage tank 1206, and the bottom of the second connecting pipe 1207 is fixedly installed on the surface of the movable plate 1203. The end of the movable plate 1203 is connected with a cooling nozzle assembly 1208, and the cooling nozzle assembly 1208 is fixedly connected to the bottom surface of the movable plate 1203, a milling assembly 1209 is installed at one end of the movable plate 1203, and the cooling nozzle assembly 1208 corresponds to the position of the milling assembly 1209, a piston power mechanism 13 is arranged on one side of the lifting milling mechanism 12, the piston power mechanism 13 includes a second piston tube 1301, a second piston tube 1301 is installed on one side of the lifting milling mechanism 12, a sealing sleeve seat 1302 is inlaid on the top of the second piston tube 1301, a piston rod 1303 is penetrated inside the sealing sleeve seat 1302, the piston rod 1303 forms a sealing sliding structure with the second piston tube 1301 through the sealing sleeve seat 1302, and the piston rod 1303 The bottom end is fixedly connected with the second piston plate 1304, and the second piston plate 1304 is slidably connected with the second piston tube 1301, a second spring 1305 is connected between the second piston plate 1304 and the top of the second piston tube 1301, and the second spring 1305 is sleeved and connected with the piston rod 1303, and the second piston plate 1304 and the second piston tube 1301 form a telescopic reset structure through the second spring 1305, and the top of the second piston tube 1301 is respectively installed with a first one-way valve 1306 and a second one-way valve 1308, one end of the first one-way valve 1306 is connected with a liquid inlet pipe 1307, and one end of the liquid inlet pipe 1307 is connected to the collecting box 3, one end of the second one-way valve 1308 is connected with a liquid outlet pipe 1309, and the liquid outlet pipe 1309 is connected to the liquid storage tank 1206, and the rotation of the driving rod 1202 can drive the movable plate 1203 to move up and down and slide inside the second limit seat 1201. During the lifting process, the limit block 1204 and the positioning rod 1205 are slidably connected to limit the lifting of the movable plate 1203, thereby improving the lifting stability of the movable plate 1203 and the milling assembly 1209. During the descent of the movable plate 1203 and the limit block 1204, the piston rod 1303 is squeezed, so that the piston rod 1303 drives the second piston plate 1304 to press down inside the second piston tube 1301, so as to quantitatively absorb the waste coolant inside the collection box 3 through the first one-way valve 1306 and the liquid inlet pipe 1307.During the rising process of the movable plate 1203 and the limit block 1204, the second spring 1305 will pull the second piston plate 1304 to reset, thereby compressing the waste coolant inside the second piston tube 1301, so that the waste coolant can be infused and replenished to the liquid storage tank 1206 through the second one-way valve 1308 and the liquid outlet pipe 1309, so that the subsequent cooling nozzle assembly 1208 can extract and discharge the coolant inside the liquid storage tank 1206, which can effectively cool the milling assembly 1209 and realize the recycling of waste coolant, avoiding waste of resources and improving the environmental protection effect of the CNC milling machine with a multi-point positioning structure for workpieces.

[0055] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC milling machine capable of performing multi-point positioning on a workpiece, comprising a fixed table (1), a collecting box (3) and a guide plate (9), characterized in that: A first electric slide (2) is fixedly mounted on the surface of the fixed platform (1), a collection box (3) is fixedly connected to one end of the fixed platform (1), and support legs (4) are fixedly mounted on the bottoms of the fixed platform (1) and the collection box (3); A separation plate (5) is installed inside the collection box (3), an anti-blocking mechanism (6) is connected inside the separation plate (5), and the anti-blocking mechanism (6) and the collection box (3) are connected to each other; A linkage cleaning mechanism (7) is provided inside the collection box (3), the linkage cleaning mechanism (7) is connected to the anti-blocking mechanism (6), and one end of the linkage cleaning mechanism (7) is interconnected with the first electric slide (2); The top of the first electric slide (2) is connected to a second electric slide (8), a guide plate (9) is fixedly installed on the top of the second electric slide (8), and one end of the guide plate (9) is interconnected with the linkage cleaning mechanism (7), a placement platform (10) is fixedly installed on the surface of the guide plate (9), and a positioning mechanism (11) is provided on the surface of the placement platform (10); A lifting milling mechanism (12) is fixedly mounted on one side of the fixed platform (1); A piston power mechanism (13) is provided on one side of the lifting milling mechanism (12), one end of the piston power mechanism (13) is interconnected with the collection box (3), and the other end of the piston power mechanism (13) is interconnected with the lifting milling mechanism (12).

2. A CNC milling machine capable of performing multi-point positioning on a workpiece according to claim 1, characterized in that: The anti-blocking mechanism (6) comprises a top plate (601), the top plate (601) is slidably connected to the interior of the collection box (3), a limiting hole (602) is provided at a top corner of the top plate (601), a limiting rod (603) is slidably connected to the interior of the limiting hole (602), and the two ends of the limiting rod (603) are respectively connected to the separation plate (5) and the collection box (3), a first spring (604) is wound around the surface of the limiting rod (603), and the top plate (601) and the collection box (3) form a telescopic structure through the first spring (604).

3. The CNC milling machine capable of multi-point positioning of a workpiece according to claim 1, characterized in that: The linkage cleaning mechanism (7) includes an active rod (701), the interior of the collection box (3) is rotatably connected to the active rod (701), the surface of the active rod (701) is fixedly sleeved with a cam (702), and the cam (702) is in contact with the top plate (601), one end of the active rod (701) is connected to a connecting chain (703), and the connecting chain (703) is connected to the first electric slide (2), the other end of the active rod (701) is fixedly installed with a driving gear (704), the bottom of the collection box (3) is fixedly installed with a first piston tube (705), the interior of the first piston tube (705) is fixedly mounted with a first piston tube (705), and the inside of the first piston tube (705) is fixedly mounted with a first piston tube (705). A reciprocating screw rod (706) is rotatably connected, and a driven gear (707) is fixedly installed on one end of the reciprocating screw rod (706). A first piston plate (708) is sleeved on the surface of the reciprocating screw rod (706), and the first piston plate (708) is slidably connected to the first piston tube (705). An inlet valve (709) and an outlet valve (710) are respectively inlaid on one end of the first piston tube (705). One end of the outlet valve (710) is connected to a first connecting pipe (711), and one end of the first connecting pipe (711) is connected to an air jet seat (712), and the air jet seat (712) is fixedly connected to one end of the guide plate (9).

4. A CNC milling machine capable of multi-point positioning of a workpiece according to claim 3, characterized in that: The reciprocating screw rod (706) is meshedly connected with the driving gear (704) via the driven gear (707), and the reciprocating screw rod (706) forms a reciprocating sliding structure with the first piston plate (708) and the first piston tube (705).

5. The CNC milling machine capable of performing multi-point positioning on a workpiece according to claim 1, characterized in that: The bottom surface of the guide plate (9) is arranged obliquely, and through holes are provided at equal intervals inside the placement platform (10).

6. The CNC milling machine capable of multi-point positioning of a workpiece according to claim 1, characterized in that: The positioning mechanism (11) includes a fixed block (1101), fixed blocks (1101) are fixedly installed at both ends of the placement platform (10), the internal thread of the fixed block (1101) is connected to a first adjusting rod (1102), one end of the first adjusting rod (1102) is connected to a connecting shaft (1103), one end of the connecting shaft (1103) is connected to a first limiting seat (1104), a connecting block (1105) is fixedly installed inside the first limiting seat (1104), a second adjusting rod (1106) is passed through the interior of the connecting block (1105) and the first limiting seat (1104), a slider (1107) is symmetrically threaded on the surface of the second adjusting rod (1106), and a clamping plate (1108) is fixedly installed on one end of the slider (1107).

7. A CNC milling machine capable of multi-point positioning of a workpiece according to claim 6, characterized in that: The first adjusting rod (1102) is rotatably connected to the first limiting seat (1104) via a connecting shaft (1103), and the second adjusting rod (1106) is rotatably connected to the first limiting seat (1104) and the connecting block (1105), respectively, and the threaded sub-connecting blocks (1105) on the second adjusting rod (1106) are symmetrically distributed at both ends.

8. The CNC milling machine capable of multi-point positioning of a workpiece according to claim 1, characterized in that: The lifting milling mechanism (12) comprises a second limiting seat (1201), a second limiting seat (1201) is fixedly installed on one side of the fixed platform (1), a driving rod (1202) is installed inside the second limiting seat (1201), a movable plate (1203) is threadedly sleeved on the surface of the driving rod (1202), a limiting block (1204) is installed at one end of the movable plate (1203), positioning rods (1205) are fixedly installed on both sides of the second limiting seat (1201), and the limiting block (1204) is connected to the second limiting seat (1201) and The positioning rod (1205) is slidably connected, and a liquid storage tank (1206) is fixedly installed on the surface of the movable plate (1203). Second connecting pipes (1207) are installed on both sides of the liquid storage tank (1206). The bottom end of the second connecting pipe (1207) is connected to a cooling nozzle assembly (1208), and the cooling nozzle assembly (1208) is fixedly connected to the bottom surface of the movable plate (1203). A milling assembly (1209) is installed at one end of the movable plate (1203), and the positions of the cooling nozzle assembly (1208) and the milling assembly (1209) correspond to each other.

9. The CNC milling machine capable of multi-point positioning of a workpiece according to claim 1, characterized in that: The piston power mechanism (13) includes a second piston tube (1301), and the second piston tube (1301) is installed on one side of the lifting milling mechanism (12). The top of the second piston tube (1301) is inlaid with a sealing sleeve (1302), and the interior of the sealing sleeve (1302) is penetrated by a piston rod (1303). The bottom end of the piston rod (1303) is fixedly connected to a second piston plate (1304), and the second piston plate (1304) is slidably connected to the second piston tube (1301). The second piston plate (1304) and the second piston tube (1301) are in a slidable relationship. 1), a second spring (1305) is connected between the top ends of the piston tube (1301), and the second spring (1305) is sleeve-connected to the piston rod (1303); a first one-way valve (1306) and a second one-way valve (1308) are respectively installed at the top ends of the second piston tube (1301); one end of the first one-way valve (1306) is connected to a liquid inlet pipe (1307), and one end of the liquid inlet pipe (1307) is connected to the collection box (3); one end of the second one-way valve (1308) is connected to a liquid outlet pipe (1309), and the liquid outlet pipe (1309) is connected to the liquid storage tank (1206).

10. The CNC milling machine capable of multi-point positioning of a workpiece according to claim 9, characterized in that: The piston rod (1303) forms a sealed sliding structure with the second piston tube (1301) through the sealing sleeve (1302), and the second piston plate (1304) forms a telescopic reset structure with the second piston tube (1301) through the second spring (1305).

Images