Numerical control gantry milling machine for numerical control machining center

Abstract

The application relates to the technical field of numerical control gantry milling machines, and provides a numerical control gantry milling machine for a numerical control machining center, so as to solve the problem that the existing numerical control gantry milling machine for the numerical control machining center cannot conveniently and stably clamp and fix workpieces of different types according to actual demands by using different clamps, and the numerical control gantry milling machine comprises a fixing frame, a first fixing plate and a positioning cylinder, the fixing frame is fixedly connected with a gantry, a first hydraulic rod is fixedly connected to the fixing frame, the end of the first hydraulic rod is fixedly connected with a receiving frame, a reinforcing plate is fixedly connected to the side end face of the receiving frame, the receiving frame is limitingly and slidingly connected in the fixing frame, and a clamp switching assembly and an automatic cleaning assembly are installed in the receiving frame. The application can not only conveniently and stably clamp and fix workpieces of different types according to actual demands by using different clamps, but also can automatically and stably clean the used clamps.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control gantry milling machines, in particular, relates to a numerical control gantry milling machine for numerical control machining centers. BACKGROUND

[0002] Numerical control gantry milling machines and numerical control machining centers are important machine tool equipment for high-precision workpieces in the new century. Today, the level of numerical control gantry milling machine technology has become a core indicator of the modernization degree of manufacturing industry of an enterprise or a country. It realizes the automation of machining tools and production processes and has become the development direction of today's manufacturing industry. Numerical control gantry milling machines are numerical control machines with strong processing functions. The rapidly developing machining centers and flexible machining units are designed on the basis of numerical control gantry milling machines and numerical control boring machines. Both of them cannot do without milling processing methods. The gantry milling machine has a portal frame milling machine, which is easy to operate, simple in structure and high in efficiency. Multiple milling cutters can be used to process the surface at the same time on the gantry milling machine, and the processing precision and production efficiency are relatively high. It is suitable for planar processing of large workpieces in batch and mass production. However, the existing numerical control gantry milling machine for numerical control machining centers has some problems in use.

[0003] For example, the numerical control gantry milling machine for numerical control machining centers disclosed in CN113523368A can use three clamping blocks to self-center and clamp the machining tool. However, during the milling process of the workpiece, the workpiece still needs to be clamped by a clamp. Therefore, during the working process, the clamp needs to be adjusted and clamped to fix the workpiece, ensuring the stability of the subsequent milling process. However, when different types of workpieces (such as special-shaped parts, gears and shaft parts) need to be processed, the existing numerical control gantry milling machine for numerical control machining centers cannot conveniently and stably clamp and fix different types of workpieces according to actual needs. The contact area between the conventional machine tool clamp and the special-shaped part and the shaft part is small, so it cannot conveniently and stably clamp and fix different sizes of special-shaped parts and shaft parts. In addition, when clamping and fixing the gear, the conventional machine tool clamp will block the gear teeth, so the direction needs to be adjusted several times to complete the processing of the gear teeth. The existing numerical control gantry milling machine for numerical control machining centers cannot automatically and stably clean the clamp after use. The debris remaining on the clamp can easily affect the clamping of the subsequent workpiece. Therefore, the operator needs to manually clean the clamp after each workpiece processing, which is not practical and has low work efficiency. Therefore, a numerical control gantry milling machine for numerical control machining centers is needed to meet the needs of users. SUMMARY

[0004] The application provides a numerical control gantry milling machine for a numerical control machining center, and solves the problem that the numerical control gantry milling machine for the numerical control machining center cannot conveniently and stably clamp and fix different types of workpieces according to actual needs and cannot automatically and stably clean the clamps after use.

[0005] The technical scheme of the application is as follows:

[0006] The numerical control gantry milling machine for the numerical control machining center comprises a fixing frame, a first fixing plate and a positioning cylinder, the fixing frame is fixedly connected with a gantry, a first servo motor is installed in the gantry, the output end of the first servo motor is connected with a first one-way threaded rod, the first one-way threaded rod is rotationally connected in the gantry, a main shaft mechanism is threadedly connected on the first one-way threaded rod, a first hydraulic rod is fixedly connected on the fixing frame, the end of the first hydraulic rod is fixedly connected with a receiving frame, a reinforcing plate is fixedly connected on the side end face of the receiving frame, the receiving frame is limitingly and slidingly connected in the fixing frame, a clamp switching assembly and an automatic cleaning assembly are installed in the receiving frame, a first bidirectional threaded rod is rotationally connected in the first fixing plate, a first clamping plate is threadedly connected on the first bidirectional threaded rod, the first clamping plate is limitingly and slidingly connected on the first fixing plate, a first movable clamping block is rotationally connected in the first clamping plate through a rotating shaft, a second movable clamping block is rotationally connected in the first movable clamping block through a rotating shaft, a third movable clamping block is rotationally connected in the second movable clamping block through a rotating shaft, a first rubber pad is fixedly connected on the third movable clamping block, a second hydraulic rod is installed in the positioning cylinder, the end of the second hydraulic rod is fixedly connected with a second clamping plate, and a second rubber pad is fixedly connected on the second clamping plate.

[0007] As a preferred scheme of the application, the end of the first hydraulic rod is fixedly connected at the middle part of the receiving frame, the reinforcing plates are symmetrically distributed on the two sides of the receiving frame, and the bottom end face of the reinforcing plate is in abutment with the top end face of the fixing frame.

[0008] As a preferred scheme of the application, the clamp switching assembly comprises a connecting plate, the connecting plate is fixedly connected in the receiving frame, a connecting groove is formed in the connecting plate, a second servo motor is installed on the side end of the connecting plate, the output shaft of the second servo motor is fixedly connected with a rotating disc, a limiting disc and a guide rod are fixedly connected on the rotating disc, a connecting shaft is rotationally connected on the connecting plate, a guide plate and a transmission disc are fixedly connected on the connecting shaft, and a guide groove is formed through the guide plate.

[0009] As a preferred scheme of the present application, wherein: the connecting plate is symmetrically distributed on both sides of the receiving frame, the connecting groove is annular, the connecting groove is symmetrically distributed on both sides of the connecting plate, and the two connecting grooves are staggered, the limiting disc is attached to the guide plate, the center axis of the guide plate and the center axis of the transmission disc are on the same center line, the guide groove is provided with four, and the four guide grooves are equally angularly distributed on the guide plate, and the connecting plate is a large-aperture mesh plate.

[0010] As a preferred scheme of the present application, wherein: the transmission disc is rotatably connected with a transmission shaft, the transmission shaft is provided with four, the four transmission shafts are equally angularly distributed on the transmission disc, the four transmission shafts are rotatably connected with the middle parts of the first supporting plate, the second supporting plate, the third supporting plate and the fourth supporting plate respectively, the first supporting plate, the second supporting plate, the third supporting plate and the fourth supporting plate are fixedly connected with connecting rods on both sides, the connecting rods are limitingly and slidingly connected in the connecting groove, and the first supporting plate, the second supporting plate, the third supporting plate and the fourth supporting plate are the same in shape and size.

[0011] As a preferred scheme of the present application, wherein: the third supporting plate is fixedly connected with a fixed frame and a connecting frame, the connecting frame is communicated with the fixed frame, the top of the fixed frame is connected with a rubber suction disc, the side end of the connecting frame is fixedly connected with a second filter screen plate, a third hydraulic rod is installed on the second filter screen plate, the other end of the third hydraulic rod is fixedly connected with a rubber piston, the rubber piston is limitingly and slidingly connected in the connecting frame, the rubber suction discs are equally angularly distributed on the top of the fixed frame, the height of the top end surface of the rubber suction disc is greater than the height of the top end surface of the third supporting plate, the end part of the third hydraulic rod is fixed in the middle part of the rubber piston, the rubber piston is attached to the inner wall of the connecting frame, and the side end surface of the connecting frame, the side end surface of the second filter screen plate and the side end surface of the third supporting plate are flush.

[0012] As a preferred scheme of the present application, wherein: the fourth supporting plate is fixedly connected with a second fixed plate on the top end surface, a second bidirectional screw rod is rotatably connected in the second fixed plate, a third clamping plate is threadedly connected on the second bidirectional screw rod, a positioning supporting plate is fixedly connected on the third clamping plate, the third clamping plate is symmetrically distributed on both sides of the second bidirectional screw rod, the third clamping plate corresponds to the positioning supporting plate one by one, the cross section of the positioning supporting plate is in the shape of a circular arc, and the positioning cylinder is fixedly connected in the top center part of the second supporting plate.

[0013] As a preferred scheme of the present application, wherein: the automatic cleaning assembly comprises a third servo motor, the third servo motor is fixedly connected to the storage frame, a rubber rod is fixedly connected to the output shaft of the third servo motor, a cleaning brush is fixedly connected to the rubber rod, a transmission belt is connected to the output shaft of the third servo motor, the other end of the transmission belt is connected to a rotating shaft, a first filter screen plate is rotatably connected to the rotating shaft, the first filter screen plate is fixedly connected to the ventilation duct, the ventilation duct is fixedly connected to the storage frame, an exhaust fan and a scraping rod are fixedly connected to the rotating shaft, a through groove is formed in the bottom of the ventilation duct, a magnetic frame is fixedly connected to the bottom of the ventilation duct, and a collection box is magnetically attached to the magnetic frame.

[0014] As a preferred scheme of the present application, wherein: the cleaning brush is provided with twelve groups, each group of cleaning brush is equidistantly distributed on the rubber rod, twelve groups of cleaning brush are equiangularly distributed on the rubber rod, the transmission belt is symmetrically distributed on both sides of the output shaft of the third servo motor, the transmission belt corresponds to the rotating shaft one by one, the scraping rod is symmetrically distributed on both sides of the rotating shaft, the scraping rod is in close contact with the first filter screen plate, the side end surface of the first filter screen plate is flush with the side end surface of the through groove, and the top end surface of the collection box is in close contact with the bottom end surface of the ventilation duct.

[0015] As a preferred scheme of the present application, wherein: the first movable clamp block is symmetrically distributed on both sides of the first clamping plate, the second movable clamp block is symmetrically distributed on both sides of the first movable clamp block, the third movable clamp block is symmetrically distributed on both sides of the second movable clamp block, the cross sections of the first movable clamp block, the second movable clamp block and the third movable clamp block are all semicircular, the diameters of the first movable clamp block, the second movable clamp block and the third movable clamp block gradually decrease, the second hydraulic rods are symmetrically distributed on both sides of the positioning cylinder, the second hydraulic rods correspond to the second clamping plates one by one, the second hydraulic rods are fixed to the middle parts of the side ends of the second clamping plates, and the cross section of the second clamping plate is in the shape of a circular arc.

[0016] The working principle and beneficial effects of the present application are as follows:

[0017] 1、The utility model provides a transmission disc is provided with, can drive the rotating disc stable rotation with second servo motor, cooperation limit disc's limit and the guiding lever's action under the action of the guiding groove on the guiding plate can drive the transmission disc on the connecting shaft convenient and stable intermittent rotation, and every time rotates 90 DEG, and in the rotating process of transmission disc, through the drive of transmission shaft and the guiding effect of connecting groove, cooperation connecting rod can drive first supporting plate, second supporting plate, third supporting plate and fourth supporting plate carry out convenient and stable smooth movement, and then can drive first supporting plate, second supporting plate, third supporting plate and fourth supporting plate move to the top one by one, so as to can conveniently and stably switch the use of various clamps on first supporting plate, second supporting plate, third supporting plate and fourth supporting plate, increase the practicability and applicability of numerical control planer type milling machine, and improve the work efficiency of numerical control planer type milling machine.

[0018] 2、The utility model provides a transmission disc is provided with, can drive the rotating disc stable rotation with second servo motor, cooperation limit disc's limit and the guiding lever's action under the action of the guiding groove on the guiding plate can drive the transmission disc on the connecting shaft convenient and stable intermittent rotation, and every time rotates 90 DEG, and in the rotating process of transmission disc, through the drive of transmission shaft and the guiding effect of connecting groove, cooperation connecting rod can drive first supporting plate, second supporting plate, third supporting plate and fourth supporting plate carry out convenient and stable smooth movement, and then can drive first supporting plate, second supporting plate, third supporting plate and fourth supporting plate move to the top one by one, so as to can conveniently and stably switch the use of various clamps on first supporting plate, second supporting plate, third supporting plate and fourth supporting plate, increase the practicability and applicability of numerical control planer type milling machine, and improve the work efficiency of numerical control planer type milling machine.

[0019] 3、 Set up has the automatic cleaning subassembly, the first supporting board, the second supporting board, the third supporting board and the fourth supporting board in the gradual movement, complete the switching work of the clamp, under the driving action of the third servo motor, through the rubber rod on the output shaft can drive each cleaning brush to each clamp and clean, further can guarantee the stable and convenient of each clamp subsequent use state, at the same time, cooperate with the rotation suction of the exhaust fan and the filtration of the first filter screen, can conveniently and stably suck and collect the workpiece debris of cleaning, and cooperate with the collection box in the magnetic frame can conveniently and stably transfer the workpiece debris of suction and collection, increase the use diversity and convenience of the planer type milling machine. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0021] Figure 1 It is a kind of whole three-dimensional structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0022] Figure 2 It is a kind of whole main view structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0023] Figure 3 It is a kind of cleaning brush structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0024] Figure 4 It is a kind of connecting groove side view structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0025] Figure 5 It is a kind of guide plate side view structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0026] Figure 6 It is a kind of first clamping plate structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0027] Figure 7 It is a kind of first movable clamping block plan view structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0028] Figure 8 It is a kind of second movable clamping block plan view structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0029] Figure 9 It is a kind of second clamping plate structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0030] Figure 10 It is a kind of second hydraulic rod plan view structure schematic diagram of numerical control planer type milling machine for numerical control machining center of the application;

[0031] Figure 11 is a third clamping plate structure schematic diagram of a numerical control gantry milling machine for a numerical control machining center of the present application;

[0032] Figure 12 is a rubber piston structure schematic diagram of a numerical control gantry milling machine for a numerical control machining center of the present application;

[0033] Figure 13 is a rubber suction disc overhead structure schematic diagram of a numerical control gantry milling machine for a numerical control machining center of the present application;

[0034] Figure 14 is a exhaust fan structure schematic diagram of a numerical control gantry milling machine for a numerical control machining center of the present application;

[0035] Figure 15 is a transmission belt side view structure schematic diagram of a numerical control gantry milling machine for a numerical control machining center of the present application;

[0036] Figure 16 is a collection box side view structure schematic diagram of a numerical control gantry milling machine for a numerical control machining center of the present application.

[0037] The drawings show that: 1, fixed frame; 2, gantry; 3, first servo motor; 4, first one-way threaded rod; 5, spindle mechanism; 6, first hydraulic rod; 7, storage frame; 8, reinforcing plate; 9, clamp switching assembly; 901, connecting plate; 902, connecting groove; 903, second servo motor; 904, turntable; 905, limit disc; 906, guide rod; 907, connecting shaft; 908, guide plate; 909, guide groove; 910, transmission disc; 911, transmission shaft; 912, first supporting plate; 913, second supporting plate; 914, third supporting plate; 915, fourth supporting plate; 916, connecting rod; 10, automatic cleaning assembly; 1001, third servo motor; 1002, rubber rod; 1003, cleaning brush; 1004, transmission belt; 1005, rotating shaft; 1006, first filter screen plate; 1007, ventilation cylinder; 1008, exhaust fan; 1009, scraping rod; 1010, through groove; 1011, collection box; 1012, magnetic frame; 11, first fixed plate; 12, first bidirectional threaded rod; 13, first clamping plate; 14, first movable clamp block; 15, second movable clamp block; 16, third movable clamp block; 17, first rubber pad; 18, positioning cylinder; 19, second hydraulic rod; 20, second clamping plate; 21, second rubber pad; 22, fixed frame; 23, rubber suction disc; 24, connecting frame; 25, second filter screen plate; 26, third hydraulic rod; 27, rubber piston; 28, second fixed plate; 29, second bidirectional threaded rod; 30, third clamping plate; 31, positioning supporting plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only 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 a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0039] Embodiment 1

[0040] As shown in Figures 1-16 , a numerical control gantry milling machine for a numerical control machining center comprises a fixed frame 1, a first fixed plate 11 and a positioning cylinder 18, the fixed frame 1 is fixedly connected with a gantry 2, the gantry 2 is internally installed with a first servo motor 3, the output end of the first servo motor 3 is connected with a first one-way threaded rod 4, the first one-way threaded rod 4 is rotationally connected in the gantry 2, the first one-way threaded rod 4 is threadedly connected with a spindle mechanism 5, the fixed frame 1 is fixedly connected with a first hydraulic rod 6, the end portion of the first hydraulic rod 6 is fixedly connected with a receiving frame 7, the side end face of the receiving frame 7 is fixedly connected with a reinforcing plate 8, the receiving frame 7 is limitingly and slidably connected in the fixed frame 1, the receiving frame 7 is internally installed with a clamp switching assembly 9 and an automatic cleaning assembly 10, the first fixed plate 11 is rotationally connected with a first bidirectional threaded rod 12, the first bidirectional threaded rod 12 is threadedly connected with a first clamping plate 13, the first clamping plate 13 is limitingly and slidably connected on the first fixed plate 11, the first clamping plate 13 is rotationally connected with a first movable clamping block 14 through a rotating shaft, the first movable clamping block 14 is rotationally connected with a second movable clamping block 15 through a rotating shaft, the second movable clamping block 15 is rotationally connected with a third movable clamping block 16 through a rotating shaft, the third movable clamping block 16 is fixedly connected with a first rubber pad 17, the positioning cylinder 18 is internally installed with a second hydraulic rod 19, the end portion of the second hydraulic rod 19 is fixedly connected with a second clamping plate 20, the second clamping plate 20 is fixedly connected with a second rubber pad 21, various clamps can be conveniently and stably switched by using the clamp switching assembly 9, the practicality and applicability of the numerical control gantry milling machine are increased, the special-shaped parts, gear workpieces and shaft workpieces can be conveniently and stably clamped and fixed, the working efficiency of the numerical control gantry milling machine is effectively improved, and in the switching process of each clamp, the automatic cleaning assembly 10 is used in cooperation to clean each clamp one by one, thereby ensuring the stability and convenience of the subsequent use state of each clamp, and increasing the use diversity and convenience of the gantry milling machine.

[0041] Embodiment 2

[0042] As shown in Figures 1-16 , based on the same concept as the above-mentioned embodiment 1, the present embodiment further proposes a numerical control gantry milling machine for a numerical control machining center.

[0043] In the example, the end of the first hydraulic rod 6 is fixedly connected to the middle part of the receiving frame 7, the reinforcing plates 8 are symmetrically arranged on the two sides of the receiving frame 7, the bottom end surface of the reinforcing plate 8 is in abutment with the top end surface of the fixed frame 1, and the load bearing capacity of the receiving frame 7 is improved by the reinforcing plates 8 on the two sides, so that the stability and safety of the working state of the receiving frame 7 are ensured.

[0044] In the example, the clamp switching assembly 9 comprises a connecting plate 901 fixedly connected to the receiving frame 7, a connecting groove 902 is arranged on the connecting plate 901, a second servo motor 903 is installed on the side end of the connecting plate 901, a rotating disc 904 is fixedly connected to the output shaft of the second servo motor 903, a limiting disc 905 and a guide rod 906 are fixedly connected to the rotating disc 904, a connecting shaft 907 is rotatably connected to the connecting plate 901, a guide plate 908 and a transmission disc 910 are fixedly connected to the connecting shaft 907, a guide groove 909 is arranged through the guide plate 908, and the limiting disc 905 cannot rotate effectively under the abutment limiting action of the limiting disc 905 and the guide plate 908 when the guide rod 906 does not contact the guide groove 909 on the guide plate 908 during the rotation of the rotating disc 904, so that the transmission disc 910 on the connecting shaft 907 can be in a stable stationary state, and the working state of the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 or the fourth supporting plate 915 is ensured to be stable, and the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 or the fourth supporting plate 915 is prevented from deviating during the working process.

[0045] In the example, the connecting plates 901 are symmetrically distributed inside the receiving frame 7, the connecting grooves 902 are annular, the connecting grooves 902 are symmetrically distributed on both sides of the connecting plates 901, the connecting grooves 902 on both sides are staggered, the limiting disc 905 is attached to the guide plate 908, the center axis of the guide plate 908 and the center axis of the transmission disc 910 are on the same center line, the guide groove 909 is provided with four, the four guide grooves 909 are equally angularly distributed on the guide plate 908, the connecting plate 901 is a large-aperture mesh plate, the transmission disc 910 is rotatably connected with the transmission shaft 911, the transmission shaft 911 is provided with four, the four transmission shafts 911 are equally angularly distributed on the transmission disc 910, the four transmission shafts 911 are respectively rotatably connected to the middle parts of the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915, the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 are all fixedly connected with the connecting rods 916, the connecting rods 916 are limitingly and slidingly connected in the connecting grooves 902, the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 are the same in shape and size, the second servo motor 903 can drive the rotating disc 904 to stably rotate, under the cooperation of the attachment limiting of the limiting disc 905 and the pushing action of the guide rod 906, the guide plate 908 on the guide groove 909 can drive the transmission disc 910 on the connecting shaft 907 to conveniently and stably intermittently rotate by 90° each time, and in the rotating process of the transmission disc 910, the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 can be conveniently and stably moved by the driving of the transmission shaft 911 and the guiding action of the connecting groove 902, in cooperation with the connecting rod 916, to stably move, thereby the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 can be moved one by one to the top end, so that various clamps on the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 can be conveniently and stably switched and used, increasing the practicability and applicability of the numerical control planer-type milling machine.

[0046] In the example, the third supporting plate 914 is fixedly connected with a fixed frame 22 and a connecting frame 24, the connecting frame 24 is communicated with the fixed frame 22, the top of the fixed frame 22 is connected with rubber suction cups 23, the side end of the connecting frame 24 is fixedly connected with a second filter screen plate 25, the second filter screen plate 25 is installed with a third hydraulic rod 26, the other end of the third hydraulic rod 26 is fixedly connected with a rubber piston 27, the rubber piston 27 is limitingly and slidingly connected in the connecting frame 24, the rubber suction cups 23 are distributed at equal angles on the top of the fixed frame 22, the height of the top end surface of the rubber suction cup 23 is greater than the height of the top end surface of the third supporting plate 914, the end of the third hydraulic rod 26 is fixed at the middle part of the rubber piston 27, the rubber piston 27 is in close contact with the inner wall of the connecting frame 24, the side end surface of the connecting frame 24, the side end surface of the second filter screen plate 25 and the side end surface of the third supporting plate 914 are flush, the rubber piston 27 on the third hydraulic rod 26 can stably suck the air in the rubber suction cup 23 through the fixed frame 22, at this time, the workpiece bottom end surface can be conveniently and stably adsorbed and fixed by using the negative pressure in each rubber suction cup 23, thereby the stability and convenience of the workpiece surface or corner processing work can be ensured, and the problem that the clamp needs to be disassembled multiple times to complete the workpiece surface or corner processing work due to the shielding of the clamp to the side end surface and the upper end surface of the workpiece is avoided.

[0047] In the example, the top end surface of the fourth supporting plate 915 is fixedly connected with a second fixed plate 28, the second fixed plate 28 is rotatably connected with a second bidirectional screw rod 29, the second bidirectional screw rod 29 is threadedly connected with a third clamping plate 30, the third clamping plate 30 is fixedly connected with a positioning supporting plate 31, the third clamping plate 30 is symmetrically distributed on the two sides of the second bidirectional screw rod 29, the third clamping plate 30 corresponds to the positioning supporting plate 31 in one-to-one manner, the cross section of the positioning supporting plate 31 is in arc shape, and a positioning cylinder 18 is fixedly connected at the top end center part of the second supporting plate 913, the third clamping plate 30 on the two sides of the second bidirectional screw rod 29 can conveniently and stably position and clamp the shaft parts of different specifications and diameters in cooperation with the corresponding positioning supporting plate 31, and the problem that the shaft parts roll during placement on the workbench and cause subsequent clamping inconvenience can be effectively avoided.

[0048] In the example, the automatic cleaning assembly 10 comprises a third servo motor 1001 fixedly connected to the storage frame 7, a rubber rod 1002 fixedly connected to the output shaft of the third servo motor 1001, a cleaning brush 1003 fixedly connected to the rubber rod 1002, a transmission belt 1004 connected to the output shaft of the third servo motor 1001, a rotating shaft 1005 connected to the other end of the transmission belt 1004, a first filter screen plate 1006 rotatably connected to the rotating shaft 1005, the first filter screen plate 1006 being fixedly connected in a ventilation duct 1007, the ventilation duct 1007 being fixedly connected to the storage frame 7, an exhaust fan 1008 and a scraping rod 1009 fixedly connected to the rotating shaft 1005, a through slot 1010 penetratingly formed at the bottom of the ventilation duct 1007, a magnetic frame 1012 fixedly connected to the bottom of the ventilation duct 1007, and a collection box 1011 magnetically and attractively connected in the magnetic frame 1012. The collection box 1011 in the magnetic frame 1012 can conveniently and stably transfer the workpiece debris collected by suction, thereby increasing the use diversity and convenience of the gantry milling machine.

[0049] In the example, the cleaning brush 1003 is provided with twelve groups, each group of cleaning brush 1003 is equally distributed on the rubber rod 1002, and the twelve groups of cleaning brush 1003 are equally distributed at equal angles on the rubber rod 1002. The transmission belt 1004 is symmetrically distributed on both sides of the output shaft of the third servo motor 1001, the transmission belt 1004 corresponds to the rotating shaft 1005 one by one, the scraping rod 1009 is symmetrically distributed on both sides of the rotating shaft 1005, the scraping rod 1009 is in close contact with the first filter screen plate 1006, the side end face of the first filter screen plate 1006 is flush with the side end face of the through slot 1010, and the top end face of the collection box 1011 is in close contact with the bottom end face of the ventilation duct 1007. Under the driving action of the third servo motor 1001, the rubber rod 1002 on the output shaft can drive each cleaning brush 1003 to clean each clamp one by one, thereby ensuring the stability and convenience of the subsequent use state of each clamp. At the same time, combined with the rotating suction of the exhaust fan 1008 and the filtration of the first filter screen plate 1006, the workpiece debris cleaned can be conveniently and stably sucked and collected.

[0050] In the example, the first movable clamping blocks 14 are symmetrically distributed inside two sides of the first clamping plate 13, the second movable clamping blocks 15 are symmetrically distributed inside two sides of the first movable clamping blocks 14, the third movable clamping blocks 16 are symmetrically distributed inside two sides of the second movable clamping blocks 15, the cross section of the first movable clamping blocks 14, the cross section of the second movable clamping blocks 15 and the cross section of the third movable clamping blocks 16 are all semicircular, the diameter of the first movable clamping blocks 14, the diameter of the second movable clamping blocks 15 and the diameter of the third movable clamping blocks 16 gradually decrease, the second hydraulic rods 19 are symmetrically distributed inside two sides of the positioning cylinder 18, the second hydraulic rods 19 correspond to the second clamping plates 20 one by one, the second hydraulic rods 19 are fixed at the middle part of the side end of the second clamping plates 20, the cross section of the second clamping plates 20 is arc-shaped, the first fixed plate 11 on the first supporting plate 912 can drive the first bidirectional threaded rod 12 to stably rotate, and then can drive the two first clamping plates 13 connected by threads to simultaneously move to the middle, the rotation clamping of the first movable clamping blocks 14, the second movable clamping blocks 15 and the third movable clamping blocks 16 can automatically and reasonably distribute pressure, so as to generate sufficient and balanced friction force to conveniently and stably clamp and fix different specifications and sizes of special-shaped parts, can ensure the stability and safety of subsequent processing work of the special-shaped parts, and the second clamping plates 20 on the second hydraulic rods 19 can cooperate with the positioning cylinder 18 to conveniently and stably extrude and clamp and fix different specifications and sizes of gears from the gear inner ring, so as to ensure the stability and convenience of subsequent processing work of the gear blocks on the gears, avoid the problem that the clamping assembly blocks the gear blocks, and cause the gear to need to be disassembled and converted multiple times to complete the processing work of the gear blocks.

[0051] Specifically, the application is a numerical control long-mill machine for numerical control machining center, which comprises a base, a first supporting plate, a first fixed plate, a first bidirectional threaded rod, a first clamping plate, a first movable clamping block, a second movable clamping block, a third movable clamping block, a positioning cylinder, a second hydraulic rod and a second clamping plate. Figures 1-16As shown, first, the staff can control the second servo motor 903 on the connecting plate 901 to start, at this time, under the driving action of the second servo motor 903, the turntable 904 on the output shaft can be driven to rotate stably, and in the rotating process of the turntable 904, when the guide rod 906 is not in contact with the guide groove 909 on the guide plate 908, under the abutting limiting action of the limiting disc 905 and the guide plate 908, the limiting disc 905 can be effectively prevented from rotating, at this time the transmission disc 910 on the connecting shaft 907 can be in a stable stationary state, thereby ensuring the stability of the working state of the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 or the fourth supporting plate 915, avoiding the deviation of the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 or the fourth supporting plate 915 in the working process, and when the guide rod 906 moves to contact the guide groove 909 on the guide plate 908, the gap on the limiting disc 905 moves to the guide plate 908, at this time the limiting disc 905 is separated from the guide plate 908, at this time under the pushing action of the guide rod 906, the guide plate 908 can be pushed to rotate 90° through the guide groove 909, and after the guide plate 908 rotates 90°, it can immediately contact the limiting disc 905 again and be automatically limited, at this time under the 90° rotating action of the guide plate 908, the transmission disc 910 can be driven to rotate 90° through the connecting shaft 907, at this time under the rotating action of the transmission disc 910, the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 can be driven to move 90° in a circle at the same time, at the same time, under the guiding action of the two side connecting rods 916 and the two side connecting grooves 902, the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 can always keep horizontal state in the movement circle process, at this time under the 90° circular motion action of the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915, the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 or the fourth supporting plate 915 can be driven to move to the top end respectively, so that various clamps on the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 can be conveniently and stably switched and used;

[0052] When the special-shaped workpiece needs to be processed, the first supporting plate 912 is moved to the top end, at which time the first staff can rotate the first two-way threaded rod 12 in the first fixed plate 11, at which time the first clamping plate 13 connected by threads on both sides can be moved to the middle under the rotating action of the first two-way threaded rod 12, and then the first movable clamping block 14 on both sides drives the corresponding second movable clamping block 15 and each third movable clamping block 16 on the second movable clamping block 15 to contact the left and right ends of the special-shaped workpiece. Since each first movable clamping block 14, second movable clamping block 15 and third movable clamping block 16 can rotate about its rotating shaft, as long as there is a non-zero torque to make it rotate until each third movable clamping block 16 is in contact with the side end face of the special-shaped workpiece, so no matter how complex the shape of the special-shaped workpiece is, after all the third movable clamping blocks 16 are in contact with the side end face of the special-shaped workpiece, the pressure can be distributed more completely, and the first rubber pad 17 on the third movable clamping block 16 can generate sufficient and balanced friction to conveniently and stably clamp and fix special-shaped workpieces of different sizes and shapes.

[0053] When the gear teeth need to be processed, the staff only needs to drive the second supporting plate 913 to the top, and then the staff can put the inner ring of the gear on the positioning cylinder 18, and then under the driving action of the second hydraulic rod 19 inside the positioning cylinder 18, the corresponding second clamping plate 20 can be pushed outwards, and the corresponding second rubber pad 21 can conveniently and stably extrude and clamp the inner wall of the gear of different specifications, so as to ensure the stability of the clamping state of the gear, thereby ensuring the stability and convenience of the subsequent processing work of the gear teeth, avoiding the blocking of the clamping assembly to the gear teeth, and causing the gear to need to be disassembled and converted multiple times to complete the processing work of the gear teeth; When the edge of the workpiece needs to be simply deburred or chamfered, the staff can drive the third supporting plate 914 to the top, and then the staff can place the workpiece on the third supporting plate 914, at this time the bottom surface of the workpiece can be in contact with each rubber suction cup 23, and the third hydraulic rod 26 on the second filter screen plate 25 is driven, at this time the third hydraulic rod 26 can drive the rubber piston 27 to move outward in the connecting frame 24, and then the air inside each rubber suction cup 23 can be stably sucked by the fixed frame 22, at this time the bottom surface of the workpiece can be conveniently and stably adsorbed and fixed by the negative pressure inside each rubber suction cup 23, thereby ensuring the stability and convenience of the simple processing work of the surface or edge of the workpiece, avoiding the blocking of the clamp to the side surface and the upper surface of the workpiece, and causing the clamp to need to be disassembled multiple times to complete the surface or edge processing work of the workpiece; When the shaft workpiece needs to be processed, the staff can place the shaft workpiece on the positioning supporting plate 31 on the third clamping plate 30, at this time the positioning supporting plate 31 can conveniently and stably position the shaft workpiece, and then the second bidirectional screw rod 29 in the second fixed plate 28 is rotated, at this time under the rotating action of the second bidirectional screw rod 29, the third clamping plate 30 connected by threads on both sides can be driven to move towards the middle, and the corresponding positioning supporting plate 31 can conveniently and stably position and clamp shaft parts of different specifications and different diameters, which can effectively avoid the rolling of the shaft parts during placement on the workbench, causing the subsequent clamping problem;

[0054] The first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 need to move in the same direction in the switching process, and cannot be switched in different directions, so the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915 can be in contact with the cleaning brush 1003 on the rubber rod 1002 during the switching process of the first supporting plate 912, the second supporting plate 913, the third supporting plate 914 and the fourth supporting plate 915, at this time, under the driving action of the third servo motor 1001, the rubber rod 1002 on the output shaft can drive each cleaning brush 1003 to clean each clamp one by one, thereby ensuring the stability and convenience of the subsequent use state of each clamp, at the same time, during the rotation of the output shaft of the third servo motor 1001, the transmission belt 1004 can drive the rotating shaft 1005 to rotate stably on the first filter screen plate 1006, thereby driving the exhaust fan 1008 to rotate stably in the ventilation cylinder 1007, at this time, under the continuous rotation action of the exhaust fan 1008, the ventilation cylinder 1007 can stably suck the cleaned workpiece debris, and under the action of the first filter screen plate 1006, the workpiece debris can be stably filtered, at the same time, during the rotation of the rotating shaft 1005, the two side scraping rods 1009 can be continuously rotated, thereby automatically and stably scraping and cleaning the filtered workpiece debris on the first filter screen plate 1006, avoiding the workpiece debris adhering to the first filter screen plate 1006, causing the first filter screen plate 1006 to be blocked, affecting the stability of the subsequent debris suction work, and the scraped debris can fall into the collection box 1011 through the through groove 1010 under the action of gravity for automatic collection, and when the gantry milling machine work is finished, the magnetic property of the magnetic frame 1012 can be used to conveniently and stably disassemble and install the collection box 1011, thereby conveniently and stably transferring the suction-collected workpiece debris;

[0055] After the workpiece is clamped stably, the first hydraulic rod 6 on the fixed frame 1 can push the storage frame 7 to move smoothly forward and backward, and the two side reinforcing plates 8 can improve the bearing capacity of the storage frame 7, thereby ensuring the stability and safety of the working state of the storage frame 7, and cooperating with the first servo motor 3 in the driving gantry 2, the main shaft mechanism 5 connected by the first one-way threaded rod 4 can drive the main shaft mechanism 5 to move smoothly left and right, thereby conveniently and stably processing the workpiece by the cutter.

[0056] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A numerical control gantry milling machine for a numerical control machining center, comprising a fixed frame (1), a first fixed plate (11) and a positioning cylinder (18), characterized in that; The fixed frame (1) is fixedly connected with a portal frame (2), the portal frame (2) is internally provided with a first servo motor (3), the output end of the first servo motor (3) is connected with a first one-way threaded rod (4), the first one-way threaded rod (4) is rotationally connected in the portal frame (2), the first one-way threaded rod (4) is threadedly connected with a main shaft mechanism (5), the fixed frame (1) is fixedly connected with a first hydraulic rod (6), the end of the first hydraulic rod (6) is fixedly connected with a receiving frame (7), the side end face of the receiving frame (7) is fixedly connected with a reinforcing plate (8), the receiving frame (7) is limitingly and slidably connected in the fixed frame (1), the receiving frame (7) is internally provided with a clamp switching assembly (9) and an automatic cleaning assembly (10), The clamp switching assembly (9) comprises a connecting plate (901), the connecting plate (901) is fixedly connected in the receiving frame (7), the connecting plate (901) is provided with a connecting groove (902), the side end of the connecting plate (901) is provided with a second servo motor (903), the output shaft of the second servo motor (903) is fixedly connected with a rotating disc (904), the rotating disc (904) is fixedly connected with a limiting disc (905) and a guide rod (906), the connecting plate (901) is rotationally connected with a connecting shaft (907), the connecting shaft (907) is fixedly connected with a guide plate (908) and a transmission disc (910), the guide plate (908) is provided with a guide groove (909) penetrating therethrough; The connecting plate (901) is symmetrically distributed on both sides of the receiving frame (7); The transmission disc (910) is rotationally connected with a transmission shaft (911), the transmission shaft (911) is provided with four, the four transmission shafts (911) are equally angularly distributed on the transmission disc (910), the four transmission shafts (911) are respectively rotationally connected in the middle parts of a first supporting plate (912), a second supporting plate (913), a third supporting plate (914) and a fourth supporting plate (915), the two sides of the first supporting plate (912), the second supporting plate (913), the third supporting plate (914) and the fourth supporting plate (915) are fixedly connected with a connecting rod (916), the connecting rod (916) is limitingly and slidably connected in the connecting groove (902), the first supporting plate (912), the second supporting plate (913), the third supporting plate (914) and the fourth supporting plate (915) are identical in shape and size.

2. The CNC gantry milling machine for CNC machining center according to claim 1, characterized in that: The first fixed plate (11) is rotationally connected with the first bidirectional threaded rod (12), the first bidirectional threaded rod (12) is threadedly connected with the first clamping plate (13), the first clamping plate (13) is limitingly and slidingly connected on the first fixed plate (11), the first movable clamping block (14) is rotationally connected with the first clamping plate (13) through a rotating shaft, the second movable clamping block (15) is rotationally connected with the first movable clamping block (14) through a rotating shaft, the third movable clamping block (16) is rotationally connected with the second movable clamping block (15) through a rotating shaft, the first rubber pad (17) is fixedly connected on the third movable clamping block (16), the second hydraulic rod (19) is installed in the positioning cylinder (18), the end of the second hydraulic rod (19) is fixedly connected with the second clamping plate (20), and the second clamping plate (20) is fixedly connected with the second rubber pad (21).

3. The CNC gantry milling machine for CNC machining center according to claim 1, characterized in that: The end of the first hydraulic rod (6) is fixedly connected to the middle part of the storage frame (7), the reinforcing plates (8) are symmetrically arranged on both sides of the storage frame (7), and the bottom end surface of the reinforcing plate (8) is flush with the top end surface of the fixed frame (1).

4. The CNC gantry milling machine for CNC machining center according to claim 3, characterized in that: The connecting grooves (902) are circular, the connecting grooves (902) are symmetrically arranged on both sides of the connecting plate (901), the connecting grooves (902) on both sides are staggered, the limiting disc (905) is flush with the guide plate (908), the central axis of the guide plate (908) and the central axis of the transmission disc (910) are located on the same center line, the guide grooves (909) are provided with four, the four guide grooves (909) are equally angularly arranged on the guide plate (908), and the connecting plate (901) is a large-aperture mesh plate.

5. The CNC gantry milling machine for CNC machining center according to claim 1, characterized in that: The third supporting plate (914) is fixedly connected with the fixed frame (22) and the connecting frame (24), the connecting frame (24) is in communication with the fixed frame (22), the top of the fixed frame (22) is connected with the rubber suction disc (23), the side end of the connecting frame (24) is fixedly connected with the second filter screen plate (25), the third hydraulic rod (26) is installed on the second filter screen plate (25), the other end of the third hydraulic rod (26) is fixedly connected with the rubber piston (27), the rubber piston (27) is limitingly and slidingly connected in the connecting frame (24), the rubber suction discs (23) are equally angularly arranged on the top of the fixed frame (22), the height of the top end surface of the rubber suction disc (23) is greater than that of the top end surface of the third supporting plate (914), the end of the third hydraulic rod (26) is fixedly connected to the middle part of the rubber piston (27), the rubber piston (27) is flush with the inner wall of the connecting frame (24), and the side end surface of the connecting frame (24), the side end surface of the second filter screen plate (25) and the side end surface of the third supporting plate (914) are flush.

6. The CNC gantry milling machine for CNC machining center according to claim 5, characterized in that: The top surface of the fourth supporting plate (915) is fixedly connected with a second fixed plate (28), the second fixed plate (28) is rotationally connected with a second bidirectional threaded rod (29), the second bidirectional threaded rod (29) is threadedly connected with a third clamping plate (30), the third clamping plate (30) is fixedly connected with a positioning supporting plate (31), the third clamping plate (30) is symmetrically distributed on the two sides of the second bidirectional threaded rod (29), the third clamping plate (30) corresponds to the positioning supporting plate (31) one by one, and the positioning supporting plate (31) is in an arc shape in cross section.

7. The CNC gantry milling machine for CNC machining center according to claim 1, characterized in that: The automatic cleaning assembly (10) comprises a third servo motor (1001), the third servo motor (1001) is fixedly connected to the storage frame (7), a rubber rod (1002) is fixedly connected to the output shaft of the third servo motor (1001), a cleaning brush (1003) is fixedly connected to the rubber rod (1002), a transmission belt (1004) is connected to the output shaft of the third servo motor (1001), one end of the transmission belt (1004) is connected to a rotating shaft (1005), a first filter screen plate (1006) is rotationally connected to the rotating shaft (1005), the first filter screen plate (1006) is fixedly connected to a ventilation duct (1007), the ventilation duct (1007) is fixedly connected to the storage frame (7), an exhaust fan (1008) and a scraping rod (1009) are fixedly connected to the rotating shaft (1005), a through groove (1010) is formed in the bottom of the ventilation duct (1007), and a magnetic frame (1012) is fixedly connected to the bottom of the ventilation duct (1007). The magnetic frame (1012) is magnetically and attractively connected with a collecting box (1011).

8. The CNC gantry milling machine for CNC machining center according to claim 7, characterized in that: The cleaning brush (1003) is provided with twelve groups, each group of cleaning brush (1003) is equidistantly distributed on the rubber rod (1002), twelve groups of cleaning brush (1003) are equiangularly distributed on the rubber rod (1002), the transmission belt (1004) is symmetrically distributed on the two sides of the output shaft of the third servo motor (1001), the transmission belt (1004) corresponds to the rotating shaft (1005) one by one, the scraping rod (1009) is symmetrically distributed on the two sides of the rotating shaft (1005), the scraping rod (1009) is in abutment with the first filter screen plate (1006), the side end surface of the first filter screen plate (1006) is flush with the side end surface of the through groove (1010), and the top end surface of the collecting box (1011) is in abutment with the bottom end surface of the ventilation duct (1007).

9. The CNC gantry milling machine for CNC machining center according to claim 2, characterized in that: The first movable clamping block (14) is symmetrically distributed inside two sides of the first clamping plate (13), the second movable clamping block (15) is symmetrically distributed inside two sides of the first movable clamping block (14), the third movable clamping block (16) is symmetrically distributed inside two sides of the second movable clamping block (15), the cross section of the first movable clamping block (14), the cross section of the second movable clamping block (15) and the cross section of the third movable clamping block (16) are all semicircular, the diameter of the first movable clamping block (14), the diameter of the second movable clamping block (15) and the diameter of the third movable clamping block (16) gradually decrease, the second hydraulic rod (19) is symmetrically distributed inside two sides of the positioning cylinder (18), the second hydraulic rod (19) corresponds to the second clamping plate (20) one by one, the second hydraulic rod (19) is fixed at the middle part of the side end of the second clamping plate (20), and the cross section of the second clamping plate (20) is in the shape of a circular arc.

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