CN114589533A

CN114589533A - Tool changing mechanism of four-axis machining center

Info

Publication number: CN114589533A
Application number: CN202210293343.6A
Authority: CN
Inventors: 王庆宏
Original assignee: Guangzhou Deli Cnc Equipment Co ltd
Current assignee: Guangzhou Deli Cnc Equipment Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-06-07

Abstract

The invention discloses a tool changing mechanism of a four-axis machining center, which comprises: the tool changing mechanism body, the tool changing mechanism body includes cassette, registration arm and joint pipe, and the inside grafting of cassette has the registration arm, and the bottom joint of cassette has the joint pipe, and the installation pipe is installed to the bottom of cassette, and the dashpot has been seted up to the inside of cassette, the inner wall connection of dashpot has the buffer block, and the inboard of buffer block is provided with the buffer beam. According to the invention, through the arrangement of the clamping seat and the installation pipe, the connection base is installed and connected through the fixing bolt, and the limiting bolt is connected with the thread groove, so that the effect of stably reinforcing the installation of the positioning pipe is achieved, the clamping pipe is sleeved on the outer surface of the connecting seat, the effect of stably reinforcing the connecting seat is achieved, through the arrangement of the buffer spring, under the effect of resilience of the buffer spring, the clamping property of the extrusion plate is increased, and the clamping effect on the connecting seat is increased, so that the stability of the drill bit assembly in use is increased.

Description

Tool changing mechanism of four-axis machining center

Technical Field

The invention relates to the technical field of tool changing structures, in particular to a tool changing mechanism of a four-axis machining center.

Background

The prior patent document with the application number of 201921954079.6 discloses an automatic tool changing mechanism of a machining center, which comprises a main box body, wherein the upper end of the main box body is provided with a belt pulley, the lower part of the main box body is rotatably connected with a disc tool magazine, the belt pulley is connected with a power source through a belt, a cam shaft is sleeved in the belt pulley, the lower end of the cam shaft is connected with a cam assembly, the cam assembly is matched with a guide wheel, the lower end of the middle part of the cam disc is fixedly connected with a semicircular block, and a pin shaft and a rotating bearing which are mutually sleeved are arranged near the outer edge of the cam disc; the invention aims to provide an automatic tool changing mechanism of a machining center, which provides power through a power source, realizes angle conversion and position locking of a disc tool magazine through transmission of a cam assembly and a guide wheel, further realizes quick switching of tools, and is simple in structure and strong in practicability. However, when the automatic tool changing mechanism of the machining center is used, an applicable positioning structure is lacked, and the stability of the structure of the device is insufficient. Therefore, there is a need for a tool changing mechanism of a four-axis machining center, which at least partially solves the problems of the prior art.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to solve the above problems at least partially, the present invention provides a tool changing mechanism of a four-axis machining center, including: the clamp comprises a clamp seat, a positioning pipe and a clamping pipe, wherein the positioning pipe is inserted into the clamp seat, the clamping pipe is clamped at the bottom of the clamp seat, an installation pipe is installed at the bottom of the clamp seat, a buffer groove is formed in the clamp seat, a buffer block is connected to the inner wall of the buffer groove, a buffer rod is arranged on the inner side of the buffer block, a limiting groove is formed in the clamp seat and the installation pipe, the positioning pipe is inserted into the limiting groove, and a positioning groove is formed in the bottom of the installation pipe.

According to the tool changing mechanism of the four-axis machining center, a reinforcing rod is mounted on the inner wall of the positioning tube, a connecting seat is mounted at the bottom of the reinforcing rod, a drill bit assembly is mounted at the bottom of the connecting seat, a reinforcing groove is formed in the bottom of the reinforcing rod, a fixing rod is clamped in the reinforcing groove, a linking base is mounted at the top of the reinforcing rod, fixing bolts penetrate through the periphery of the top of the linking base in a threaded mode, and the front end of each fixing bolt is connected to the top of the positioning tube in a threaded mode.

According to the tool changing mechanism of the four-axis machining center, the hexagonal clamping groove is formed in the bottom of the clamping tube, the outer surface of the clamping tube is provided with the threaded ring, the outer surface of the threaded ring is connected to the inner wall of the clamping seat in a threaded mode, the inner wall of the clamping tube is connected with the sleeve in an embedded mode, the front end of the sleeve is connected with the sleeve rod in an inserted mode, the front end of the sleeve rod is connected with the extrusion plate, and the bottom and the top of the extrusion plate are connected to the inside of the clamping tube through the sliding blocks.

According to the tool changing mechanism of the four-axis machining center provided by the embodiment of the invention, the outer surface of the installation pipe is in threaded penetrating connection with a plurality of limiting bolts, the outer surface of the positioning pipe is provided with a plurality of threaded grooves, and the front ends of the limiting bolts are in threaded connection with the inner parts of the threaded grooves.

According to the tool changing mechanism of the four-axis machining center provided by the embodiment of the invention, the inner clamping sleeve is arranged at the top of the clamping pipe, and the outer surface of the inner clamping sleeve is clamped in the clamping seat.

According to the tool changing mechanism of the four-axis machining center provided by the embodiment of the invention, the inner wall of the sleeve is provided with the buffer spring, and the front end of the buffer spring is connected to the tail end of the sleeve rod.

According to the tool changing mechanism of the four-axis machining center provided by the embodiment of the invention, the outer surface of the clamping pipe is sleeved on the outer surface of the connecting seat.

According to the tool changing mechanism of the four-axis machining center of the embodiment of the invention, the tool changing mechanism body further comprises a heat dissipation module, the heat dissipation module comprises a heat dissipation fixing frame and a heat dissipation spray pipe assembly, the heat dissipation fixing frame is arranged at the upper part of the installation pipe, the heat dissipation spray pipe assembly is arranged on the heat dissipation fixing frame, the heat dissipation spray pipe assembly comprises a guide pipe and a spray head pipe, the guide pipe is arranged on the heat dissipation fixing frame, an upper filtering part is arranged in the guide pipe, an upper fixing mechanism corresponding to the upper filtering part is arranged on the outer wall of the guide pipe, a fixing cap part is arranged at the upper end of the spray head pipe and is connected with the lower end of the guide pipe through the fixing cap part, a lower filtering part corresponding to the upper filtering part is arranged in the spray head pipe, and a lower fixing mechanism corresponding to the lower filtering part is arranged on the outer wall of the spray head pipe, the inner wall of the spray head pipe is provided with a filter seat, the lower filter part comprises a filter vertical support rod, an upper cap body, a filter spring and a lower support seat, the lower support seat is arranged in the spray head pipe and is positioned below the filter seat, a support rod barrel and a plurality of liquid through holes are arranged in the lower support seat, the liquid through holes are positioned around the support rod barrel, the lower end of the filter vertical support rod is positioned in the support rod barrel, the upper cap body is arranged at the upper end of the filter vertical support rod, the filter spring is arranged on the filter vertical support rod and abuts against between the upper cap body and the lower support seat, so that the upper cap body is positioned in an inner ladder hole of the filter seat and corresponds to the upper filter part, the lower fixing mechanism comprises a lower rotating sleeve, an outer inverted T rod, an inner top spring and a fixture block, the lower rotating sleeve is arranged on the outer wall of the spray head pipe, the inner T rod is arranged in an inner T-shaped counter bore on the spray head pipe through the inner top spring, the outer inverted T-shaped rod is arranged in an outer T-shaped counter bore of the lower rotating sleeve and abuts against the inner T-shaped rod, so that the inner T-shaped rod extends into the spray head pipe to bear the lower support, and the clamping block is arranged in a clamping groove of the spray head pipe through a clamping spring.

According to the tool changing mechanism of the four-axis machining center provided by the embodiment of the invention, the outer wall of the nozzle pipe is provided with a notch peripheral groove, the outer wall of the notch peripheral groove is provided with a fixed peripheral groove and a plurality of first lateral ladder holes, the first lateral ladder holes are positioned below the fixed peripheral groove, the first lateral ladder holes are internally provided with braking balls, the guide pipe is internally provided with an inner through pipe, the outer wall of the inner through pipe is provided with second lateral ladder holes corresponding to the first lateral ladder holes, the fixed cap part comprises a first inner fixed sleeve, a second inner fixed sleeve, a fixed spring and an outer fixed cylinder, the first inner fixed sleeve is arranged in the fixed peripheral groove, the outer fixed cylinder is arranged outside the nozzle pipe, the second inner fixed sleeve is arranged in the outer fixed cylinder, the fixed spring is arranged in the notch peripheral groove and positioned below the second inner fixed sleeve, so that the second inner fixing sleeve is abutted against the first inner fixing sleeve and the plurality of braking balls.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. the invention provides a tool changing mechanism of a four-axis machining center, which is characterized in that a clamping base and an installation pipe are arranged, a fixed bolt is used for installing and connecting a connecting base, and a limiting bolt is connected with a thread groove, so that a positioning pipe is stably reinforced, the clamping pipe is sleeved on the outer surface of a connecting base, the connecting base is stably reinforced, and the clamping performance of an extrusion plate is increased under the action of the resilience of a buffer spring through the arrangement of the buffer spring, so that the clamping effect on the connecting base is increased, and the stability of a drill bit assembly in use is increased.

2. The invention provides a tool changing mechanism of a four-axis machining center, wherein a drill bit assembly in the tool changing mechanism of the four-axis machining center is used by installing a positioning pipe, so that the drill bit assembly and the positioning pipe have good disassembly convenience, the replacement of the drill bit assembly is facilitated, and the applicability of the device is improved.

3. The tool changing mechanism of the four-axis machining center has good matching usability, and a splicing and matching mode is mostly adopted, so that the structure has good disassembly and replacement performance when damaged, and unnecessary waste is reduced.

Other advantages, objects, and features of the present invention, as well as the four axis machining center tool changing mechanism of the present invention, will be in part apparent from the following description and in part will become apparent to those skilled in the art upon examination of the following or may be learned from practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of a positioning tube structure of the present invention;

FIG. 4 is a schematic view of a bayonet tube configuration of the present invention;

FIG. 5 is a schematic view of the structure of the extrusion plate according to the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 5 according to the present invention;

FIG. 7 is a schematic cross-sectional structural view of the cartridge of the present invention;

FIG. 8 is a schematic cross-sectional view of a reinforcing rod structure according to the present invention;

FIG. 9 is a schematic view of the connection between the heat dissipation module and the processing head according to the present invention;

FIG. 10 is a schematic view of a heat dissipation nozzle assembly according to the present invention;

FIG. 11 is a schematic view of the internal structure of the heat-dissipating nozzle assembly of the present invention;

FIG. 12 is a schematic view of the structure of the inverted T-bar of the present invention;

FIG. 13 is a schematic structural view of a lower fixing mechanism according to the present invention;

FIG. 14 is a schematic view of the structure of the lower filter portion of the present invention;

fig. 15 is a schematic view of the structure of the catheter of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 8, the present invention provides a tool changing mechanism of a four-axis machining center, including: the clamping device comprises a clamping seat 1, a positioning pipe 2 and a clamping pipe 3, wherein the positioning pipe 2 is inserted into the clamping seat 1, the clamping pipe 3 is clamped at the bottom of the clamping seat 1, an installation pipe 4 is installed at the bottom of the clamping seat 1, a buffer groove 5 is formed in the clamping seat 1, the inner wall of the buffer groove 5 is connected with a buffer block 6, a buffer rod 7 is arranged on the inner side of the buffer block 6, limiting grooves 8 are formed in the clamping seat 1 and the installation pipe 4, the positioning pipe 2 is inserted into the limiting grooves 8, a positioning groove 9 is formed in the bottom of the installation pipe 4, a plurality of limiting bolts 22 are connected to the outer surface of the installation pipe 4 in a threaded penetrating mode, a plurality of thread grooves 23 are formed in the outer surface of the positioning pipe 2, and the front ends of the limiting bolts 22 are connected to the inner portions of the thread grooves 23 in a threaded mode;

further, through the setting of cassette 1 and installation pipe 4, carry out erection joint to linking up base 15 through fixing bolt 16, and be connected of spacing bolt 22 and thread groove 23, thereby play stable reinforced effect to the installation of registration arm 2, then make card pipe 3 cup joint in the surface of connecting seat 11, play stable reinforced effect to connecting seat 11, through buffer spring 25's setting, under the effect of buffer spring 25 resilience, thereby add the grip nature of stripper plate 21, thereby add stability when addding drill bit assembly 12 and using to the clamping action of connecting seat 11.

Furthermore, a reinforcing rod 10 is installed on the inner wall of the positioning tube 2, a connecting seat 11 is installed at the bottom of the reinforcing rod 10, a drill bit assembly 12 is installed at the bottom of the connecting seat 11, a reinforcing groove 13 is formed in the bottom of the reinforcing rod 10, a fixing rod 14 is clamped inside the reinforcing groove 13, a linking base 15 is installed at the top of the fixing rod 14, fixing bolts 16 are connected to the periphery of the top of the linking base 15 in a penetrating mode through threads, the front ends of the fixing bolts 16 are connected to the top of the positioning tube 2 in a threaded mode, and the outer surface of the clamping tube 3 is sleeved on the outer surface of the connecting seat 11;

further, the drill bit assembly 12 is installed through the positioning pipe 2 for use, so that the drill bit assembly 12 and the positioning pipe 2 both have good easy-to-detach performance, convenience is added to replacement of the drill bit assembly 12, and the applicability of the device is improved.

Furthermore, a hexagonal clamping groove 17 is formed in the bottom of the clamping tube 3, a threaded ring 18 is formed in the outer surface of the clamping tube 3, the threaded ring 18 is in threaded connection with the outer surface of the inner wall of the clamping seat 1, a sleeve 19 is connected to the inner wall of the clamping tube 3 in an embedded mode, a loop rod 20 is inserted into the front end of the sleeve 19, an extrusion plate 21 is connected to the front end of the loop rod 20, the bottom and the top of the extrusion plate 21 are connected to the inside of the clamping tube 3 through sliders, an inner clamping sleeve 24 is installed at the top of the clamping tube 3, the outer surface of the inner clamping sleeve 24 is clamped in the clamping seat 1, a buffer spring 25 is arranged on the inner wall of the sleeve 19, and the front end of the buffer spring 25 is connected to the tail end of the loop rod 20; the tool changing mechanism of the four-axis machining center has good matching usability among the structures, and is mainly matched in a splicing mode, so that the structure has good disassembly and replacement performance when being damaged, unnecessary waste is reduced, the structure of the device is simple, and the manufacturing cost is low.

As shown in fig. 9 to 15, a heat dissipating module 9 is further designed on the tool changer body, the heat dissipating module 9 includes a heat dissipating fixing frame 91 and a heat dissipating nozzle assembly 92, the heat dissipating fixing frame 91 is disposed on the upper portion of the mounting tube 4, the heat dissipating nozzle assembly 92 is disposed on the heat dissipating fixing frame, the heat dissipating nozzle assembly 92 includes a guide tube 93 and a nozzle tube 94, the guide tube 93 is disposed on the heat dissipating fixing frame 91, an upper filter 931 is disposed in the guide tube 93, an upper fixing mechanism 932 corresponding to the upper filter is disposed on the outer wall of the guide tube 93, a fixing cap 95 is disposed at the upper end of the nozzle tube 94 and connected to the lower end of the guide tube 93 through the fixing cap, a lower filter 96 corresponding to the upper filter 931 is disposed in the nozzle tube 94, a lower fixing mechanism 97 corresponding to the lower filter 96 is disposed on the outer wall of the nozzle tube 94, a filter seat 941 is disposed on an inner wall of the shower head pipe, the lower filter portion 96 includes a filter stem 961, an upper cap body 962, a filter spring 963, and a lower support 964 disposed in the shower head pipe 94 and below the filter seat 941, a stem barrel 965 and a plurality of liquid passing holes 966 are disposed in the lower support, the plurality of liquid passing holes 966 are disposed around the stem barrel 965, a lower end of the filter stem 961 is disposed in the stem barrel, the upper cap body is disposed at an upper end of the filter stem 961, the filter spring 963 is disposed on the filter stem 961 and abuts between the upper cap body 962 and the lower support 964, such that the upper cap body is disposed in an inner stepped hole 942 of the filter seat and corresponds to the upper filter portion, the lower fixing mechanism 931 includes a lower swivel sleeve 971, an outer inverted T rod 972, an inner T rod 973, an inner top spring 974, and a latch 975, the lower rotating sleeve 971 is arranged on the outer wall of the nozzle pipe, the inner T-shaped rod 973 is arranged in an inner T-shaped counter bore 943 on the nozzle pipe through an inner top spring 974, the outer T-shaped rod 972 is arranged in an outer T-shaped counter bore 976 of the lower rotating sleeve 971 and abuts against the inner T-shaped rod 973, so that the inner T-shaped rod 973 extends into the nozzle pipe 94 to bear the lower support 964, and the fixture block 975 is arranged in a clamping groove 944 of the nozzle pipe 94 through a clamping spring 977.

Further, a notch peripheral groove 945 is arranged on the outer wall of the nozzle pipe 94, a fixed peripheral groove 946 and a plurality of first lateral ladder holes 947 are arranged on the outer wall of the notch peripheral groove, the first lateral ladder holes 947 are located below the fixed peripheral groove, a braking ball 948 is arranged in each first lateral ladder hole, an inner through pipe 933 is arranged in the guide pipe, a second lateral ladder hole corresponding to the first lateral ladder hole 947 is arranged on the outer wall of the inner through pipe 933, the fixed cap part 95 comprises a first inner fixed sleeve 951, a second inner fixed sleeve 952, a fixed spring 953 and an outer fixed sleeve 954, the first inner fixed sleeve is arranged in the fixed peripheral groove, the outer fixed sleeve 954 is arranged outside the nozzle pipe 94, the second inner fixed sleeve is arranged in the outer fixed sleeve 954, the fixed spring 953 is arranged in the notch peripheral groove 945 and is located below the second inner fixed sleeve 952, such that the second inner hub 952 bears against the first inner hub 951 and the plurality of brake balls 948.

In the invention, the working steps of the device are as follows: through the collocation work of the clamping seat 1 and the installation tube 4, the clamping seat 1 is internally connected with the inner wall of the buffer groove 5 through the buffer block 5, the buffer block 6 and the buffer rod 7, thereby playing a supporting role for the inside of the clamping seat 1, the positioning tube 2 is inserted in the limiting groove 8 in a clamping way, the top of the installation tube 4 can be clamped and installed through the linking base 15, thereby leading the fixed rod 14 to penetrate through the insides of the reinforcing groove 13 and the positioning groove 9 and leading the fixing bolt 16 to carry out installation connection on the linking base 15, and leading the positioning tube 2 to be connected with the thread groove 23 through the limiting bolt 22 after being clamped, thereby playing a stable and reinforcing role for the installation of the positioning tube 2, leading the clamping tube 3 to be rotatably installed through the hexagonal clamping groove 17 and the thread ring 18, using a related and applicable hexagonal handle, further leading the clamping tube 3 to be sleeved on the outer surface of the connecting seat 11, play the reinforced effect of stabilizing to connecting seat 11, and the setting of cooperation dead lever 14, thereby add stability when drill bit assembly 12 uses, and drill bit assembly 12 uses through the installation of registration arm 2, consequently drill bit assembly 12 all has good just dismantlement nature with registration arm 2, then add the change of drill bit assembly 12 and add the facility, improve the suitability of device, accessible stripper plate 21's setting in card pipe 3, stripper plate 21 can be through the flexible mobility of sleeve pipe 19 and loop bar 20, and through the setting of buffer spring 25, under the effect of buffer spring 25 resilience, thereby add the centre gripping nature of stripper plate 21, thereby add the clamping effect to connecting seat 11, and the reinforced structure of this device is comparatively simple, low in manufacturing cost, have better usability between the structure, adopt the collocation mode of concatenation more, therefore the structure has good just dismantlement nature and replaceability when damaging, unnecessary waste is reduced.

Further, the tool changing mechanism body further comprises a heat dissipation module 9, the heat dissipation module 9 comprises a heat dissipation fixing frame 91 and a heat dissipation spray pipe assembly 92, the heat dissipation fixing frame 91 is arranged on the upper portion of the installation pipe 4, the heat dissipation spray pipe assembly 92 is arranged on the heat dissipation fixing frame, the heat dissipation spray pipe assembly 92 comprises a guide pipe 93 and a spray head pipe 94, the guide pipe 93 is arranged on the heat dissipation fixing frame 91, an upper filtering portion 931 is arranged in the guide pipe 93, an upper fixing mechanism 932 corresponding to the upper filtering portion is arranged on the outer wall of the guide pipe 93, a fixing cap portion 95 is arranged at the upper end of the spray head pipe 94, the upper fixing cap portion is connected with the lower end of the guide pipe 93, a lower filtering portion 96 corresponding to the upper filtering portion 931 is arranged in the spray head pipe 94, and a lower fixing mechanism 97 corresponding to the lower filtering portion 96 is arranged on the outer wall of the spray head pipe 94, a filter seat 941 is disposed on an inner wall of the shower head pipe, the lower filter portion 96 includes a filter stem 961, an upper cap body 962, a filter spring 963, and a lower support 964 disposed in the shower head pipe 94 and below the filter seat 941, a stem barrel 965 and a plurality of liquid passing holes 966 are disposed in the lower support, the plurality of liquid passing holes 966 are disposed around the stem barrel 965, a lower end of the filter stem 961 is disposed in the stem barrel, the upper cap body is disposed at an upper end of the filter stem 961, the filter spring 963 is disposed on the filter stem 961 and abuts between the upper cap body 962 and the lower support 964, such that the upper cap body is disposed in an inner stepped hole 942 of the filter seat and corresponds to the upper filter portion, the lower fixing mechanism 931 includes a lower swivel sleeve 971, an outer inverted T rod 972, an inner T rod 973, an inner top spring 974, and a latch 975, the lower rotating sleeve 971 is arranged on the outer wall of the nozzle pipe, the inner T-shaped rod 973 is arranged in an inner T-shaped counter bore 943 on the nozzle pipe through an inner top spring 974, the outer T-shaped rod 972 is arranged in an outer T-shaped counter bore 976 of the lower rotating sleeve 971 and abuts against the inner T-shaped rod 973, so that the inner T-shaped rod 973 extends into the nozzle pipe 94 to bear the lower support 964, and the fixture block 975 is arranged in a clamping groove 944 of the nozzle pipe 94 through a clamping spring 977.

A heat dissipation module 9 is further designed on the tool changing mechanism body and used for spraying cooling liquid onto the tool changing mechanism and reducing the temperature of the drill bit assembly 12 in the machining process; the heat dissipation module 9 includes a heat dissipation fixing frame 91 and a heat dissipation spray pipe assembly 92, specifically, the heat dissipation fixing frame 91 is installed on the installation pipe 4, the heat dissipation spray pipe assembly 92 is installed on the heat dissipation fixing frame and faces the drill bit assembly 12, since the cooling liquid of the machining center is recycled, the circulated cooling liquid is sprayed to the drill bit assembly 12 through the heat dissipation module 9 again, so that the phenomenon of debris accumulation in the heat dissipation spray pipe assembly 92 is avoided, the spraying of the heat dissipation spray pipe assembly 92 is not smooth and the drill bit assembly 12 is affected, at this time, the heat dissipation spray pipe assembly 92 needs to be disassembled to clean the internal debris, so the heat dissipation spray pipe assembly 92 includes a conduit 93 and a spray head pipe 94, the conduit 93 is installed on the heat dissipation fixing frame 91, an upper filtering part 931 is arranged in the conduit 93, and an upper fixing mechanism 932 corresponding to the upper filtering part is installed on the outer wall of the conduit 93, the upper end of the nozzle pipe 94 is provided with a fixed cap part 95, and the fixed cap part is connected with the lower end of the guide pipe 93, so that a worker can conveniently rotate the fixed cap part to separate the nozzle pipe 94 from the guide pipe 93, and the worker can conveniently clean chips in the nozzle pipe 94 and the guide pipe 93;

here, a lower filtering portion 96 corresponding to the upper filtering portion 931 is provided in the nozzle pipe 94, a lower fixing mechanism 97 corresponding to the lower filtering portion 96 is pressed on an outer wall of the nozzle pipe 94, a filtering seat 941 is installed on an inner wall of the nozzle pipe 94, the lower filtering portion 96 includes a filtering vertical rod 961, an upper cap body 962, a filtering spring 963, and a lower support 964, the lower support 964 is installed in the nozzle pipe 94 and located below the filtering seat 941, a rod cylinder 965 is installed in the lower support 964 and a plurality of liquid passing holes 966 are formed, the plurality of liquid passing holes 966 are located around the rod cylinder 965, and the size of the liquid passing holes 966 is small, so that when cooling liquid passes through the liquid passing holes 966, an accelerating effect is achieved, the cooling liquid is sprayed to the drill bit assembly 12 through the lower end of the nozzle pipe 94, and heat of the drill bit assembly 12 can be rapidly taken away to achieve a heat dissipation effect;

here, the lower end of the filtering upright bar 961 is located in the bar barrel, the upper cap body 962 is installed at the upper end of the filtering upright bar 961, the filtering spring 963 is installed on the filtering upright bar 961 and abuts between the upper cap body 962 and the lower holder 964, so that the upper cap body 962 is located in the inner ladder hole 942 of the filtering seat and corresponds to the upper filtering portion 931, where the inner ladder hole 942 has an inner inclined wall 9421, the upper end diameter is smaller than the lower end diameter, and the upper cap body 962 correspondingly has an outer inclined wall 9621 and a blocking sleeve 9622, where the lower filtering portion 96 can be opened rapidly by the lower fixing mechanism 97 by a worker, and the upper filtering portion 931 blocks the conduit 93 to prevent the coolant from leaking from the conduit 93;

here, the lower fixing mechanism 97 includes a lower rotating sleeve 971, an outer inverted T-bar 972, an inner T-bar 973, an inner top spring 974, and a latch 975, and, in particular, the worker can press the inverted T-bar 972 on the lower rotating sleeve 971 inwardly when the lower filter portion 96 is opened, so that the inverted T-shaped rod 972 extends the fixture block 975 inwards, the fixture block 975 compresses the clamp spring 977 into the clamp groove 944 of the nozzle tube 94, then the lower rotating sleeve 971 is rotated to make the upper outer T-shaped counter bore 976 of the lower rotating sleeve 971 correspond to the inner T-shaped rod 973, the inner T-bar 973 in turn pushes the outer T-bar 972 outwards under the action of the inner top spring 974, the inverted T-bar 972 is then pushed outward into the outer T-shaped counterbore 976, and the inner T-bar 973 enters the outer T-shaped counterbore 976, the inner T-bar 973 is also drawn out from the bottom of the lower support 964, and the lower filter portion 96 can be separated from the guide tube 93 by the filter spring 963, so that the debris can be poured out of the nozzle tube 94 and the nozzle tube 94 can be cleaned; similarly, the upper filter 931 and the upper fixing mechanism 932 may have the same structure as the lower filter 96 and the lower fixing mechanism 97, and after the conduit 93 is taken off from the heat dissipation fixing frame 91, the upper filter 931 may be opened by the upper fixing mechanism 932, so as to pour out the debris in the conduit 93 from the conduit 93, and then clean the conduit 93.

Further, a notch peripheral groove 945 is arranged on the outer wall of the nozzle pipe 94, a fixed peripheral groove 946 and a plurality of first lateral ladder holes 947 are arranged on the outer wall of the notch peripheral groove, the first lateral ladder holes 947 are located below the fixed peripheral groove, a braking ball 948 is arranged in each first lateral ladder hole, an inner through pipe 933 is arranged in the guide pipe, a second lateral ladder hole corresponding to the first lateral ladder hole 947 is arranged on the outer wall of the inner through pipe 933, the fixed cap part 95 comprises a first inner fixed sleeve 951, a second inner fixed sleeve 952, a fixed spring 953 and an outer fixed sleeve 954, the first inner fixed sleeve is arranged in the fixed peripheral groove, the outer fixed sleeve 954 is arranged outside the nozzle pipe 94, the second inner fixed sleeve is arranged in the outer fixed sleeve 954, the fixed spring 953 is arranged in the notch peripheral groove 945 and is located below the second inner fixed sleeve 952, so that said second inner hub 952 bears against said first inner hub 951 and against a plurality of braking balls 948.

Here, in order to be used in cooperation with the fixed cap portion 95, in the present embodiment, a notch peripheral groove 945 is formed in an outer wall of the nozzle pipe 94, a fixed peripheral groove 946 and a plurality of first side stepped holes 947 are formed in an outer wall of the notch peripheral groove 945, where the first side stepped holes 947 are located below the fixed peripheral groove 946, a detent ball 948 is placed in each of the first side stepped holes 947, an inner through pipe 933 is provided in the guide pipe 93, the upper filter portion 931 is installed in the inner through pipe 933, and a second side stepped hole corresponding to the first side stepped hole 947 is formed in an outer wall of the inner through pipe 933

And fixed cap portion 95 includes first internal fixation cover 951, second internal fixation cover 952, fixed spring 953 and external fixation section of thick bamboo 954, so the staff can with external fixation section of thick bamboo 954 pulling down, and then the internal fixation cover 952 of second in the external fixation section of thick bamboo 954 can press down fixed spring 953, and then second internal fixation cover 952 and the separation of braking spheroid 948, braking spheroid 948 can follow second side direction ladder hole 932 and remove to first side direction ladder hole 947 in to like this, and then pipe 93 can come with shower nozzle pipe 94 separation, and then can make things convenient for the two to clear up the piece, in order to make things convenient for this heat dissipation module 9 to spray the coolant liquid to drill bit assembly 12 in order to take away the heat fast, avoid causing heat dissipation shower nozzle pipe assembly 92 to spray the phenomenon that unblocked and influence drill bit assembly 12.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. The utility model provides a four-axis machining center's tool changing mechanism which characterized in that includes:

the tool changing mechanism comprises a tool changing mechanism body, wherein the tool changing mechanism body comprises a clamping seat (1), a positioning pipe (2) and a clamping pipe (3), the positioning pipe (2) is inserted into the clamping seat (1), the clamping pipe (3) is clamped at the bottom of the clamping seat (1), an installation pipe (4) is installed at the bottom of the clamping seat (1), a buffer groove (5) is formed in the clamping seat (1), a buffer block (6) is connected to the inner wall of the buffer groove (5), a buffer rod (7) is arranged on the inner side of the buffer block (6), a limiting groove (8) is formed in the clamping seat (1) and the installation pipe (4), the positioning pipe (2) is inserted into the limiting groove (8), and a positioning groove (81) is formed in the bottom of the installation pipe (4).

2. The tool changing mechanism of the four-axis machining center according to claim 1, characterized in that a reinforcing rod (10) is installed on the inner wall of the positioning tube (2), a connecting seat (11) is installed at the bottom of the reinforcing rod (10), a drill bit assembly (12) is installed at the bottom of the connecting seat (11), a reinforcing groove (13) is formed in the bottom of the reinforcing rod (10), a fixing rod (14) is clamped inside the reinforcing groove (13), a linking base (15) is installed at the top of the fixing rod (14), fixing bolts (16) are connected to the periphery of the top of the linking base (15) in a threaded penetrating mode, and the front ends of the fixing bolts (16) are connected to the top of the positioning tube (2) in a threaded mode.

3. The tool changing mechanism of the four-axis machining center according to claim 1, characterized in that a hexagonal clamping groove (17) is formed in the bottom of the clamping tube (3), a threaded ring (18) is formed in the outer surface of the clamping tube (3), the threaded ring (18) is in threaded connection with the inner wall of the clamping seat (1) relative to the outer surface, a sleeve (19) is connected to the inner wall of the clamping tube (3) in an embedded manner, a sleeve rod (20) is inserted into the front end of the sleeve (19), a squeezing plate (21) is connected to the front end of the sleeve rod (20), and the bottom and the top of the squeezing plate (21) are connected to the inside of the clamping tube (3) through sliders.

4. The tool changing mechanism of the four-axis machining center according to claim 1, wherein a plurality of limiting bolts (22) are connected to the outer surface of the mounting pipe (4) in a threaded manner, a plurality of thread grooves (23) are formed in the outer surface of the positioning pipe (2), and the front ends of the limiting bolts (22) are connected to the insides of the thread grooves (23) in a threaded manner.

5. The tool changing mechanism of the four-axis machining center according to claim 1, characterized in that an inner cutting sleeve (24) is mounted on the top of the clamping tube (3), and the outer surface of the inner cutting sleeve (24) is clamped inside the clamping base (1).

6. Tool changing mechanism for a four-axis machining center according to claim 3, characterized in that the inner wall of the sleeve (19) is provided with a buffer spring (25), and the front end of the buffer spring (25) is connected to the tail end of the sleeve rod (20).

7. The tool changing mechanism of the four-axis machining center according to claim 1, wherein the outer surface of the clamping tube (3) is sleeved on the outer surface of the connecting seat (11).

8. The tool changing mechanism of a four-axis machining center according to claim 1, wherein the tool changing mechanism body further comprises a heat dissipating module (9), the heat dissipating module (9) comprises a heat dissipating fixing frame (91) and a heat dissipating nozzle assembly (92), the heat dissipating fixing frame (91) is disposed on the upper portion of the mounting tube (4), the heat dissipating nozzle assembly (92) is disposed on the heat dissipating fixing frame, the heat dissipating nozzle assembly (92) comprises a guide tube (93) and a nozzle tube (94), the guide tube (93) is disposed on the heat dissipating fixing frame (91), an upper filtering portion (931) is disposed in the guide tube (93), an upper fixing mechanism (932) corresponding to the upper filtering portion is disposed on the outer wall of the guide tube (93), a fixing cap portion (95) is disposed on the upper end of the nozzle tube (94), and the fixing cap portion is connected with the lower end of the guide tube (93), be provided with in shower nozzle pipe (94) with lower filter portion (96) that upper filter portion (931) corresponds, be provided with on the outer wall of shower nozzle pipe (94) with lower fixed establishment (97) that lower filter portion (96) correspond, be provided with on the inner wall of shower nozzle pipe and filter seat (941), lower filter portion (96) are including filtering vertical support pole (961), last cap body (962), filtering spring (963) and undersetting (964), the undersetting sets up in shower nozzle pipe (94) and is located the below of filtering seat (941), be provided with in the undersetting a support pole section of thick bamboo (965) and a plurality of logical liquid hole (966), a plurality of logical liquid hole (966) are located around the support pole section of thick bamboo (965), the lower extreme of filtering vertical support pole (961) is located in the support pole section of thick bamboo, the last cap body sets up the upper end of filtering vertical support pole (961), the filtering spring (963) is arranged on the filtering vertical support rod (961) and is abutted between an upper cap body (962) and a lower support (964) so that the upper cap body is positioned in an inner ladder hole (942) of the filtering seat and corresponds to the upper filtering part (931), the lower fixing mechanism (97) comprises a lower rotating sleeve (971), an outer inverted T-shaped rod (972), an inner T-shaped rod (973), an inner top spring (974) and a fixture block (975), the lower rotating sleeve (971) is arranged on the outer wall of the spray head pipe, the inner T-shaped rod (973) is arranged in an inner T-shaped counter bore (943) on the spray head pipe through the inner top spring (974), the outer inverted T-shaped rod (972) is arranged in an outer T-shaped counter bore (976) of the lower rotating sleeve (971) and is abutted against the inner T-shaped rod (973), so that the inner T-shaped counter bore (973) extends to the lower support (94) to bear the lower support (931), the clamping block (975) is arranged in the clamping groove (944) of the nozzle pipe (94) through a clamping spring (977).

9. The tool changing mechanism of a four-axis machining center according to claim 8, wherein the outer wall of the nozzle tube (94) is provided with a notch circumferential groove (945), the outer wall of the notch circumferential groove is provided with a fixed circumferential groove (946) and a plurality of first lateral ladder holes (947), the first lateral ladder holes (947) are located below the fixed circumferential groove, the first lateral ladder holes are internally provided with braking balls (948), the inside of the tube is provided with an inner tube (933), the outer wall of the inner tube (933) is provided with second lateral ladder holes corresponding to the first lateral ladder holes (947), the fixed cap part (95) comprises a first inner fixing sleeve (951), a second inner fixing sleeve (952), a fixing spring (953) and an outer fixing cylinder (954), the first inner fixing sleeve is arranged in the fixed circumferential groove, and the outer fixing cylinder (954) is arranged outside the nozzle tube (94), the second inner fixing sleeve is arranged in the outer fixing barrel (954), the fixing spring (953) is arranged in the notch peripheral groove (945) and located below the second inner fixing sleeve (952), and the second inner fixing sleeve (952) is enabled to abut against the first inner fixing sleeve (951) and the plurality of braking balls (948).