Tool changing structure of numerical control machine tool

Abstract

The utility model provides a numerical control machine tool tool changing structure which comprises a top plate, supporting frames are fixedly installed on the two sides of the bottom of the top plate, an installation plate is fixedly connected between the two supporting frames, a hydraulic cylinder is arranged at the top of the installation plate, and an output rod at the bottom of the hydraulic cylinder penetrates through the installation plate and is fixedly connected with the top of an installation base. A notch is formed in the surface of the mounting base, limiting assemblies are arranged on the two sides of the inner wall of the notch, the middle of the inner wall of the notch is fixedly connected with one side of a mounting disc through a fixing frame, the other side of the mounting disc is rotationally connected with a cutter head, and an auxiliary assembly is arranged on the side of the cutter head. The two electric push rods on the two fixing seats penetrate through the two first insertion holes in the mounting disc and drive the two limiting blocks to be in contact with the two connecting blocks to be stressed, the two limiting blocks are matched with the two stopping blocks to limit and stop the two connecting blocks, and due to the fact that the two stopping blocks are located above and below the two connecting blocks, the two stopping blocks can stop the two connecting blocks to stop the two connecting blocks. And therefore, the position of the cutter can be conveniently limited and fixed after the cutter head is rotated.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, and in particular relates to a tool changing structure for a numerical control machine tool. Background Art

[0002] The CNC machine tool is equipped with a cutter disc, and the cutter head required for processing is fixed on the cutter disc. The more common fixing structure of the cutter disc and the cutter head is fixed with a wedge and a wedge screw. At the same time, the tool on the cutter disc needs to be adjusted to process different workpieces. After searching the "A CNC machine tool tool changing device structure" disclosed by the application number "CN202021562032.8", it is recorded that "the device adopts a fixed frame, a right support frame, a lower fixed frame and a left support frame to form a mounting frame structure, so that the installation of the mounting handle and the pull rod is convenient for the telescopic cylinder to extend and retract, and the pull rod is driven to the mounting handle. The handle can be extended and retracted in order to adjust the height of the tool disc, and multiple groups of clamping claws are arranged on the tool disc, and the outer ends of the clamping claws are fixed on the tool handle. The tool can be installed on each group of tool handles, and multiple groups of tools can be installed at the same time, which improves the processing efficiency, improves the flexibility of tool change, and avoids the phenomenon of tool jamming. However, the device still has the following defects when used: the existing CNC machine tool tool changing structure needs to rotate the tool disc when in use, but there is an error in the position of the tool on the tool disc after rotation. At the same time, it is not safe to replace and install the tool by clamping claws, so it is necessary to design a CNC machine tool tool changing structure with strong practicality. Utility Model Content

[0003] The utility model aims to provide a tool changing structure for a numerically controlled machine tool, aiming to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool changing structure for a CNC machine tool, comprising a top plate, support frames are fixedly installed on both sides of the bottom of the top plate, a mounting plate is fixedly connected between the two support frames, a hydraulic cylinder is arranged on the top of the mounting plate, an output rod at the bottom of the hydraulic cylinder penetrates the mounting plate and is fixedly connected to the top of the mounting seat, a notch is opened on the surface of the mounting seat, limit assemblies are arranged on both sides of the inner wall of the notch, the middle part of the inner wall of the notch is fixedly connected to one side of the mounting disc through a fixing frame, a cutter disc is rotatably connected to the other side of the mounting disc, and an auxiliary assembly is arranged on the side of the cutter disc;

[0005] The limit assembly includes two fixed seats installed on both sides of the inner wall of the slot, and an electric push rod is fixedly installed on one side of the two fixed seats. The telescopic ends of the two electric push rods are inserted and connected with two first sockets opened on the surface of the mounting disc, and are fixedly connected with a limit block, and a blocking block is arranged above one side of the limit block.

[0006] In order to facilitate the fixing and replacement of different cutting tools, as a preferred embodiment of the utility model, the auxiliary component includes a plurality of connecting blocks installed on the side of the cutter disc, the surfaces of a plurality of the connecting blocks can contact with the two blocking blocks, the other ends of a plurality of the connecting blocks are fixedly installed with an adjusting box, a mounting groove is opened on one side of the adjusting box, a micro motor is arranged at one end of the adjusting box, the output shaft of the micro motor extends to the interior of the adjusting box and is fixedly connected with a threaded rod, the other end of the threaded rod is rotatably connected to the bottom of the inner wall of the mounting groove, the surface of the threaded rod is threadedly connected with two sliders with reverse threads, one end of the two sliders are slidably connected to a through groove opened on one side of the inner wall of the mounting groove, and a slot is opened in the middle of the inner wall of the through groove.

[0007] In order to facilitate the installation and fixation of the tool, as a preferred embodiment of the utility model, the inner wall of the slot is snap-connected with a tool rod, the other end of the tool rod is provided with a tool, and two slots are provided on the surface of the tool rod, and the inner walls of the two slots are snap-connected with one end of two sliders.

[0008] In order to facilitate the rotation of the cutter disc and adjust the angle of the cutter, as a preferred embodiment of the present invention, a rotating motor is provided in the middle of the inner wall of the slot, and the output shaft of the rotating motor is fixedly connected to the rotating shaft, and the other end of the rotating shaft is plugged and connected to the second socket opened in the middle of the mounting disc, and is fixedly connected to the middle of one side of the cutter disc.

[0009] In order to facilitate the limiting of the rotation of the cutter disc, as a preferred embodiment of the present invention, a mounting ring is fixedly mounted on one side of the cutter disc, and the other end of the mounting ring is slidably connected to the inner wall of an annular groove provided on one side of the mounting disc.

[0010] In order to facilitate the limiting of the movement of the mounting seat, as a preferred embodiment of the utility model, first through holes are opened on both sides of the top of the mounting plate, and the inner walls of the two first through holes are interspersed with guide rods, and the surfaces of the guide rods are interspersed with the sliding sleeves provided on the inner sides of the top of the mounting seat, and a limiting ring is provided at the bottom of the guide rod, and a limiting rod is provided between the top plate, the mounting plate and the mounting seat.

[0011] In order to control the electrical appliances inside the device, as a preferred embodiment of the present invention, a control panel is provided on one side of the support frame, and the rotating motor, the electric push rod and the micro motor are all electrically connected to the external power supply through the control panel.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) The two electric push rods on the two fixed seats pass through the two first jacks on the mounting disc, and drive the two limit blocks to contact the two connecting blocks to bear force. The two limit blocks cooperate with the two blocking blocks to limit and block the two connecting blocks. Since the two blocking blocks are located above and below the two connecting blocks, it is convenient to limit and fix the position of the tool after the tool disc is rotated;

[0014] 2) A micro motor cooperates with a threaded rod to drive two sliders with opposite threads to move on the inner wall of the through groove, and the tool rod on the tool is inserted into the slot. One end of the two sliders is engaged with two slots on the surface of the tool rod to limit and fix it, so as to facilitate the installation and replacement of different tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0019] Figure 4 It is a schematic diagram of the auxiliary component structure of the utility model.

[0020] In the figure: 1. top plate; 11. support frame; 12. mounting plate; 121. first through hole; 122. guide rod; 123. limit ring; 13. hydraulic cylinder; 14. mounting seat; 141. sleeve; 15. notch; 151. rotating motor; 152. rotating shaft; 16. fixing frame; 17. mounting disc; 171. first plug hole; 172. second plug hole; 173. annular groove; 18. cutter disc; 181. mounting ring; 19. limit rod; 110. control panel; 2. limit assembly; 21. fixing seat; 22. electric push rod; 23. limit block; 24. blocking block; 3. auxiliary assembly; 31. connecting block; 32. adjusting box; 33. mounting groove; 34. micro motor; 35. threaded rod; 36. slider; 37. through groove; 38. slot; 4. cutter bar; 41. cutter; 42. slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-4 The utility model provides the following technical solutions: a tool changing structure for a CNC machine tool, comprising a top plate 1, support frames 11 are fixedly installed on both sides of the bottom of the top plate 1, a mounting plate 12 is fixedly connected between the two support frames 11, a hydraulic cylinder 13 is arranged on the top of the mounting plate 12, an output rod at the bottom of the hydraulic cylinder 13 penetrates the mounting plate 12, and is fixedly connected to the top of a mounting seat 14, a notch 15 is opened on the surface of the mounting seat 14, and limiting components 2 are arranged on both sides of the inner wall of the notch 15, the middle part of the inner wall of the notch 15 is fixedly connected to one side of a mounting disc 17 through a fixing frame 16, a cutter disc 18 is rotatably connected to the other side of the mounting disc 17, and an auxiliary component 3 is arranged on the side of the cutter disc 18;

[0024] The limit assembly 2 includes two fixed seats 21 installed on both sides of the inner wall of the slot 15, and an electric push rod 22 is fixedly installed on one side of the two fixed seats 21. The telescopic ends of the two electric push rods 22 are inserted and connected with two first sockets 171 opened on the surface of the mounting disc 17, and are fixedly connected with a limit block 23. A blocking block 24 is arranged above one side of the limit block 23.

[0025] During specific use, the two electric push rods 22 on the two fixed seats 21 pass through the two first holes 171 on the mounting disc 17, and drive the two limit blocks 23 to contact the two connecting blocks 31 to bear force. The two limit blocks 23 cooperate with the two blocking blocks 24 to limit and block the two connecting blocks 31. Since the two blocking blocks 24 are located above and below the two connecting blocks 31, it is convenient to limit and fix the position of the tool 41 after the rotating cutter disc 18.

[0026] In this embodiment, the auxiliary component 3 includes a plurality of connecting blocks 31 installed on the side of the blade disc 18, and the surfaces of the plurality of connecting blocks 31 can contact the two blocking blocks 24. The other ends of the plurality of connecting blocks 31 are fixedly installed with an adjusting box 32, and a mounting groove 33 is opened on one side of the adjusting box 32. A micro motor 34 is arranged at one end of the adjusting box 32. The output shaft of the micro motor 34 extends to the inside of the adjusting box 32 and is fixedly connected with a threaded rod 35. The other end of the threaded rod 35 is rotatably connected to the bottom of the inner wall of the mounting groove 33. The surface of the threaded rod 35 is threadedly connected with two sliders 36 with reverse threads. One end of the two sliders 36 are slidably connected to a through groove 37 opened on one side of the inner wall of the mounting groove 33, and a slot 38 is opened in the middle of the inner wall of the through groove 37.

[0027] During specific use, the micro motor 34 cooperates with the threaded rod 35 to drive two reverse-threaded sliders 36 to move on the inner wall of the through groove 37, and the tool rod 4 on the tool 41 is inserted into the slot 38. One end of the two sliders 36 is engaged with the two card grooves 42 on the surface of the tool rod 4, thereby limiting and fixing it, so as to facilitate the installation and replacement of different tools 41.

[0028] In this embodiment, the inner wall of the slot 38 is snap-connected with a knife rod 4, and a knife 41 is provided at the other end of the knife rod 4. Two slots 42 are provided on the surface of the knife rod 4, and the inner walls of the two slots 42 are snap-connected with one end of the two sliders 36.

[0029] During specific use, one end of the two slide blocks 36 is engaged with the two slots 42 on the surface of the knife bar 4, so as to limit and fix it, which is convenient for installing and replacing different knives 41.

[0030] In this embodiment, a rotating motor 151 is provided in the middle of the inner wall of the slot 15, and the output shaft of the rotating motor 151 is fixedly connected to the rotating shaft 152. The other end of the rotating shaft 152 is inserted and connected to the second socket 172 opened in the middle of the mounting disc 17, and is fixedly connected to the middle of one side of the cutter disc 18.

[0031] During specific use, the rotary motor 151 cooperates with the rotating shaft 152 and the second plug hole 172 to drive the cutter disc 18 to rotate, and the cutter disc 18 cooperates with a plurality of connecting blocks 31 to drive a plurality of cutting tools 41 to rotate, thereby realizing rotary tool change.

[0032] In this embodiment, a mounting ring 181 is fixedly mounted on one side of the cutter disc 18 , and the other end of the mounting ring 181 is slidably connected to the inner wall of the annular groove 173 provided on one side of the mounting disc 17 .

[0033] During specific use, the cutter disc 18 drives the mounting ring 181 to slide in the annular groove 173 of the mounting disc 17 , thereby limiting the rotation of the cutter disc 18 .

[0034] In this embodiment, first through holes 121 are opened on both sides of the top of the mounting plate 12, and the inner walls of the two first through holes 121 are interspersed with guide rods 122. The surfaces of the guide rods 122 are interspersed with the sliding sleeves 141 provided on both sides of the top of the mounting seat 14. A limiting ring 123 is provided at the bottom of the guide rod 122, and a limiting rod 19 is provided between the top plate 1, the mounting plate 12 and the mounting seat 14.

[0035] During specific use, the hydraulic cylinder 13 cooperates with the output rod to drive the two sliding sleeves 141 on the mounting seat 14 to slide on the surfaces of the two guide rods 122, thereby adjusting the height of the cutter disc 18, and cooperates with the limiting ring 123 on the guide rod 122 to limit the moving range of the mounting seat 14. The limiting rod 19 moves up and down under the movement of the mounting seat 14, thereby ensuring the stability of the structure on the mounting seat 14.

[0036] In this embodiment, a control panel 110 is disposed on one side of the support frame 11 , and the rotary motor 151 , the electric push rod 22 , and the micro motor 34 are all electrically connected to an external power source through the control panel 110 .

[0037] During specific use, the control panel 110 is used to control the rotary motor 151, the electric push rod 22 and the micro motor 34, so as to facilitate tool change of the device.

[0038] Working principle: When using the device, connect it to an external power supply. First, the hydraulic cylinder 13 cooperates with the output rod to drive the two sleeves 141 on the mounting seat 14 to slide on the surfaces of the two guide rods 122, thereby adjusting the height of the cutter disc 18, and cooperates with the limit ring 123 on the guide rod 122 to limit the moving range of the mounting seat 14. The limit rod 19 moves up and down under the movement of the mounting seat 14 to ensure the stability of the structure on the mounting seat 14. The rotating motor 151 cooperates with the rotating shaft 152 and the second jack 172 to drive the cutter disc 18 to rotate. The cutter disc 18 cooperates with a number of connecting blocks 31 to drive a number of cutting tools 41 to rotate, thereby realizing rotary tool change. The two electric push rods 22 on the two fixed seats 21 It passes through the two first plug holes 171 on the mounting disc 17, and drives the two limit blocks 23 to contact the two connecting blocks 31 to bear force. The two limit blocks 23 cooperate with the two blocking blocks 24 to limit and block the two connecting blocks 31. Since the two blocking blocks 24 are located above and below the two connecting blocks 31, it is convenient to limit and fix the position of the tool 41 after the rotating cutter disc 18. The micro motor 34 cooperates with the threaded rod 35 to drive two reverse-threaded sliders 36 to move on the inner wall of the through groove 37, and the tool rod 4 on the tool 41 is inserted into the slot 38. One end of the two sliders 36 is engaged and connected with the two card grooves 42 on the surface of the tool rod 4 to limit and fix it, which is convenient for installing and replacing different tools 41.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tool changing structure for a numerically controlled machine tool, comprising a top plate (1), characterized in that: Support frames (11) are fixedly installed on both sides of the bottom of the top plate (1), a mounting plate (12) is fixedly connected between the two support frames (11), a hydraulic cylinder (13) is arranged on the top of the mounting plate (12), an output rod at the bottom of the hydraulic cylinder (13) penetrates the mounting plate (12) and is fixedly connected to the top of the mounting seat (14), a notch (15) is opened on the surface of the mounting seat (14), and limit assemblies (2) are arranged on both sides of the inner wall of the notch (15), the middle part of the inner wall of the notch (15) is fixedly connected to one side of the mounting disc (17) through a fixing frame (16), the other side of the mounting disc (17) is rotatably connected to a cutter disc (18), and an auxiliary assembly (3) is arranged on the side of the cutter disc (18); The limit assembly (2) comprises two fixing seats (21) installed on both sides of the inner wall of the slot (15), one side of each of the two fixing seats (21) is fixedly mounted with an electric push rod (22), the telescopic ends of the two electric push rods (22) are inserted and connected with two first plug holes (171) provided on the surface of the mounting disc (17), and are fixedly connected with a limit block (23), and a blocking block (24) is provided above one side of the limit block (23).

2. A tool changing structure for a CNC machine tool according to claim 1, characterized in that: The auxiliary component (3) comprises a plurality of connecting blocks (31) mounted on the side of the blade disc (18), the surfaces of the plurality of connecting blocks (31) being able to contact the two blocking blocks (24), the other ends of the plurality of connecting blocks (31) being fixedly mounted with an adjusting box (32), one side of the adjusting box (32) being provided with an installing groove (33), one end of the adjusting box (32) being provided with a micro motor (34), the output shaft of the micro motor (34) extending into the inside of the adjusting box (32) and being fixedly connected with a threaded rod (35), the other end of the threaded rod (35) being rotatably connected to the bottom of the inner wall of the installing groove (33), the surface of the threaded rod (35) being threadedly connected with two sliders (36) with opposite threads, one end of the two sliders (36) being slidably connected to a through groove (37) provided on one side of the inner wall of the installing groove (33), the middle part of the inner wall of the through groove (37) being provided with a slot (38).

3. A tool changing structure for a CNC machine tool according to claim 2, characterized in that: The inner wall of the slot (38) is snap-connected with a knife rod (4), the other end of the knife rod (4) is provided with a knife (41), the surface of the knife rod (4) is provided with two slots (42), the inner walls of the two slots (42) are snap-connected with one end of two slide blocks (36).

4. The tool changing structure of a CNC machine tool according to claim 1, characterized in that: A rotating motor (151) is provided in the middle of the inner wall of the notch (15), and the output shaft of the rotating motor (151) is fixedly connected to a rotating shaft (152), and the other end of the rotating shaft (152) is inserted and connected to a second plug hole (172) provided in the middle of the mounting disc (17), and is fixedly connected to the middle of one side of the cutter disc (18).

5. The tool changing structure of a CNC machine tool according to claim 1, characterized in that: A mounting ring (181) is fixedly mounted on one side of the cutter disc (18), and the other end of the mounting ring (181) is slidably connected to the inner wall of an annular groove (173) provided on one side of the mounting disc (17).

6. The tool changing structure of a CNC machine tool according to claim 1, characterized in that: First through holes (121) are provided on both sides of the top of the mounting plate (12), and guide rods (122) are inserted and connected to the inner walls of the two first through holes (121). The surfaces of the guide rods (122) are inserted and connected to the sliding sleeves (141) provided on both sides of the top of the mounting seat (14). A limiting ring (123) is provided at the bottom of the guide rods (122), and a limiting rod (19) is provided between the top plate (1), the mounting plate (12) and the mounting seat (14).

7. The tool changing structure of a CNC machine tool according to claim 4, characterized in that: A control panel (110) is provided on one side of the support frame (11), and the rotary motor (151), the electric push rod (22) and the micro motor (34) are all electrically connected to an external power source via the control panel (110).

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