Rapid tool changing device of milling machine

Abstract

The quick tool changing device comprises a mounting base, a mounting sleeve is fixed to the bottom end of the mounting base, a milling cutter is detachably arranged in the mounting sleeve, first sliding grooves are formed in the two sides of the bottom end of the mounting base correspondingly, and first sliding blocks are slidably connected into the two first sliding grooves correspondingly; according to the quick tool changing device for the milling machine, when the tool of the milling machine is changed, firstly, a hand wheel is manually rotated, the hand wheel drives a two-way lead screw to rotate, the two-way lead screw drives two moving blocks to move back to back, so that two fixing rods are driven to move back to back, the fixing rods are separated from fixing grooves, an old milling cutter can be disassembled, and then a new milling cutter is placed in a mounting sleeve; and the milling cutter is limited through the cross-shaped block and the cross-shaped groove, and then during reverse rotation of the hand wheel, the two moving blocks are driven by the two-way screw rod to move in opposite directions, so that the fixed rod can be driven to be inserted into the fixed groove, and therefore, the milling cutter is mounted and fixed, the milling cutter is conveniently and rapidly replaced, and the replacement efficiency of the milling cutter is improved.

Description

Technical Field

[0001] The present application relates to the technical field of milling machines, and in particular to a quick tool changing device for milling machines. Background Art

[0002] Milling machines mainly refer to machine tools that use milling cutters to process various surfaces of workpieces. Usually, the milling cutter mainly moves in rotation, and the movement of the workpiece and the milling cutter is the feed motion. It can process planes, grooves, various curved surfaces, gears, etc.

[0003] When changing the cutter of an existing milling machine, the cutter needs to be fixed by bolts after installation, which is cumbersome and inconvenient for rapid replacement of the cutter, thus reducing the replacement efficiency of the cutter. Therefore, those skilled in the art provide a quick cutter changing device for a milling machine to solve the problems raised in the above background technology. Utility Model Content

[0004] An embodiment of the present application provides a quick tool changing device for a milling machine to solve the technical problem in the related art that the milling cutter needs to be fixed by bolts after installation, the installation process is cumbersome, and it is not convenient to quickly replace the milling cutter, which reduces the replacement efficiency of the milling cutter.

[0005] A quick tool changing device for a milling machine is provided, comprising a mounting seat, a mounting sleeve being fixed at the bottom end of the mounting seat, a milling cutter being detachably arranged in the mounting sleeve, first sliding grooves being provided on both sides of the bottom end of the mounting seat, first sliders being slidably connected in the two first sliding grooves, fixing rods interlaced with the mounting sleeve being fixed to the bottom ends of the two first sliders, fixing grooves engaging with the fixing rods being provided on both sides of the milling cutter, and a mounting component for driving the first slider to move is provided in the mounting seat.

[0006] By adopting the above technical solution and using the installation assembly, the fixing rod is driven to move so that the fixing rod is engaged with the fixing groove, thereby facilitating the fixing of the milling cutter, facilitating the replacement of the milling cutter, and improving the replacement efficiency of the milling cutter.

[0007] In some embodiments, the mounting assembly includes a cavity opened inside the mounting seat, a bidirectional screw is rotatably connected in the cavity, the bidirectional screw is threadedly connected to two moving blocks fixed to the first slider, one end of the bidirectional screw passes through the outside of the mounting seat and is fixed with a handwheel, and the outer wall of the bidirectional screw is threadedly connected to a fastening nut.

[0008] By adopting the above technical solution and using the installation assembly, it is convenient to drive the fixing rod to move in different directions, thereby facilitating the replacement and installation of the milling cutter.

[0009] In some embodiments, a limit assembly for limiting the position of the milling cutter is provided in the mounting sleeve, and the limit assembly includes a cross slot opened at the top of the milling cutter, and the cross slot is snap-connected with a cross block, and the cross block is fixedly connected to the inner wall of the mounting sleeve through a telescopic rod, and the outer wall of the telescopic rod is provided with a first spring.

[0010] By adopting the above technical solution and using the limiting assembly, it is convenient to provide limiting support for the milling cutter and maintain the stability of the milling cutter after installation.

[0011] In some embodiments, an annular plate with a top opening located on the outer wall of the milling cutter is fixed to the inner wall of the mounting sleeve, an airbag is fixed to the inner wall of the annular plate, a nozzle connected to the airbag is fixed to the bottom end of the annular plate, a pressure ring fixed to the airbag is inserted and connected inside the annular plate, and the mounting sleeve is provided with an extrusion assembly that drives the pressure ring to move.

[0012] By adopting the above technical solution, the movement of the pressure ring is driven by the extrusion component, which facilitates the extrusion of the airbag by the pressure ring, and then the lubricant is sprayed to the milling cutter through the nozzle, thereby facilitating the lubrication protection of the milling cutter and increasing the service life of the milling cutter.

[0013] In some embodiments, the extrusion assembly includes a second slider fixedly arranged on both sides of the top of the pressure ring, and second sliding grooves for the second slider to slide are opened on both sides of the mounting sleeve. The outer wall of the mounting sleeve is slidably provided with an arc plate fixed to the second slider, and the arc plate is connected to the mounting sleeve through an elastic component.

[0014] By adopting the above technical solution and using the extrusion assembly, it is convenient to drive the pressure ring to extrude the airbag.

[0015] In some embodiments, the elastic component includes a third slider fixedly disposed on the inner wall of the arc plate, the outer wall of the mounting sleeve is provided with a third sliding groove for sliding the third slider, and the third sliding groove is fixedly connected to the third slider via a second spring.

[0016] By adopting the above technical solution and using the elastic component, the movement and resetting of the extrusion component is facilitated.

[0017] The beneficial effects of the technical solution provided by this application include:

[0018] 1. The quick tool changing device for the milling machine, when changing the tool of the milling machine, first manually rotate the hand wheel, the hand wheel drives the rotation of the bidirectional screw rod, the bidirectional screw rod drives the back-to-back movement of the two moving blocks, thereby driving the back-to-back movement of the two fixed rods, so that the fixed rods are separated from the fixed grooves, and the old milling cutter can be removed, and then the new milling cutter is placed in the installation sleeve, and the milling cutter is limited by the cross block and the cross groove, and then in the reverse rotation of the hand wheel, the two moving blocks are driven to move towards each other by the bidirectional screw rod, and the fixed rod can be driven to insert into the fixed groove, so that the milling cutter is installed and fixed, which is convenient for the rapid replacement of the milling cutter and improves the replacement efficiency of the milling cutter.

[0019] 2. The quick tool changing device of the milling machine is that when the milling cutter has been used for a long time, the arc plate is pressed manually, and the arc plate stretches the second spring during its downward movement, and at the same time drives the second slider to move downward. The second slider drives the pressure ring to move downward, and the airbag is squeezed through the pressure ring. Under the squeezing action, the airbag sprays lubricant to the milling cutter through the nozzle, so as to lubricate and protect the milling cutter, reduce the wear of the milling cutter, and increase the service life of the milling cutter. When lubrication is stopped, the arc plate is released, and then the arc plate is driven to reset under the elastic action of the second spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure provided for an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the planar structure of the mounting sleeve provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of the elastic component structure provided in an embodiment of the present application;

[0024] Figure 4 Provided in the embodiments of this application Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0025] In the figure: 1. mounting seat; 2. mounting sleeve; 3. milling cutter; 4. first slide groove; 5. first slider; 6. fixing rod; 7. fixing groove; 8. mounting assembly; 81. cavity; 82. bidirectional screw rod; 83. moving block; 84. hand wheel; 85. fastening nut; 9. limit assembly; 91. cross groove; 92. cross block; 93. telescopic rod; 94. first spring; 10. annular plate; 11. airbag; 12. nozzle; 13. pressure ring; 14. extrusion assembly; 141. second slider; 142. second slide groove; 143. arc plate; 15. elastic assembly; 151. third slider; 152. third slide groove; 153. second spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] An embodiment of the present application provides a quick tool changing device for a milling machine, which can solve the technical problem in the related art that the milling cutter needs to be fixed by bolts after installation, the installation process is cumbersome, and it is not convenient to quickly replace the milling cutter, which reduces the replacement efficiency of the milling cutter.

[0028] Reference Figure 1-4 In order to solve the above technical problems, the present application discloses a quick tool changing device for a milling machine, comprising a mounting seat 1, a mounting sleeve 2 is fixed at the bottom end of the mounting seat 1, a milling cutter 3 is detachably provided in the mounting sleeve 2, first slide grooves 4 are provided on both sides of the bottom end of the mounting seat 1, first sliders 5 are slidably connected in the two first slide grooves 4, fixing rods 6 interlaced with the mounting sleeve 2 are fixed to the bottom ends of the two first sliders 5, fixing grooves 7 engaged with the fixing rods 6 are provided on both sides of the milling cutter 3, and a mounting component 8 for driving the first slider 5 to move is provided in the mounting seat 1.

[0029] In this embodiment, when it is necessary to change the tool of the milling machine, first, under the movement of the installation component 8, the two first slide blocks 5 are driven to move backwards, and the two first slide blocks 5 drive the two fixing rods 6 to move backwards, so that the fixing rods 6 are separated from the fixing grooves 7, and the milling cutter 3 can be removed from the installation sleeve 2, and then the new milling cutter 3 is put into the installation sleeve 2 again, and then under the reverse movement of the installation component 8, the two fixing rods 6 are driven to move towards each other, so that the fixing rods 6 are engaged with the fixing grooves 7, and the milling cutter 3 can be fixed, which facilitates the replacement and installation of the milling cutter 3 and improves the replacement efficiency of the milling cutter 3.

[0030] In a further embodiment, Figure 2 and Figure 4 As shown, the mounting assembly 8 includes a cavity 81 opened inside the mounting seat 1, a bidirectional screw rod 82 is rotatably connected in the cavity 81, the bidirectional screw rod 82 is threadedly connected to two moving blocks 83 fixed to the first slider 5, one end of the bidirectional screw rod 82 passes through the outside of the mounting seat 1 and is fixed with a handwheel 84, the outer wall of the bidirectional screw rod 82 is threadedly connected to a fastening nut 85, and a limiting assembly 9 for limiting the milling cutter 3 is provided in the mounting sleeve 2, the limiting assembly 9 includes a cross groove 91 opened at the top of the milling cutter 3, the cross groove 91 is snap-connected with a cross block 92, the cross block 92 is fixedly connected to the inner wall of the mounting sleeve 2 through a telescopic rod 93, and the outer wall of the telescopic rod 93 is sleeved with a first spring 94.

[0031] When replacing and installing the milling cutter 3, the new milling cutter 3 is inserted into the installation sleeve 2, and the cross groove 91 on the milling cutter 3 is engaged with the cross block 92. Then, when the milling cutter 3 moves further to align the fixing rod 6 with the fixing groove 7, the milling cutter 3 compresses the first spring 94 at this time, and the milling cutter 3 can remain stable after installation under the elastic action of the first spring 94. Then, the hand wheel 84 is manually turned, and the hand wheel 84 drives the rotation of the bidirectional screw rod 82, and the bidirectional screw rod 82 drives the two moving blocks 83 to move toward each other. The two moving blocks 83 drive the two first sliding blocks 5 to move toward each other, thereby driving the fixing rod 6 to engage with the fixing groove 7, and the milling cutter 3 can be installed and fixed, which is convenient for the installation of the milling cutter 3.

[0032] In a further preferred embodiment of the present invention, Figure 2 As shown, the inner wall of the mounting sleeve 2 is fixed with an annular plate 10 with a top opening located on the outer wall of the milling cutter 3, an air bag 11 is fixed to the inner wall of the annular plate 10, a nozzle 12 connected to the air bag 11 is fixed to the bottom end of the annular plate 10, a pressure ring 13 fixed to the air bag 11 is inserted and connected inside the annular plate 10, and the mounting sleeve 2 is provided with an extrusion assembly 14 that drives the pressure ring 13 to move.

[0033] When the milling cutter 3 has been used for a long time, the movement of the extrusion assembly 14 drives the pressure ring 13 to squeeze the airbag 11. The airbag 11 squeezes out the lubricant therein under the extrusion action and sprays it on the milling cutter 3 through the nozzle 12, so as to lubricate and protect the milling cutter 3, reduce the wear of the milling cutter 3, and increase the service life of the milling cutter 3. When the lubricant in the airbag 11 is completely squeezed out, the liquid inlet of the airbag 11 is connected to an external lubricant source to replenish the lubricant to the airbag 11.

[0034] In a further embodiment, Figure 2-3As shown, the extrusion assembly 14 includes a second slider 141 fixedly arranged on both sides of the top of the pressure ring 13, and second slide grooves 142 for the second slider 141 to slide are provided on both sides of the mounting sleeve 2. The outer wall of the mounting sleeve 2 is slidably provided with an arc plate 143 fixed to the second slider 141. The arc plate 143 is connected to the mounting sleeve 2 through an elastic assembly 15. The elastic assembly 15 includes a third slider 151 fixedly arranged on the inner wall of the arc plate 143. The outer wall of the mounting sleeve 2 is provided with a third slide groove 152 for the third slider 151 to slide, and the third slide groove 152 is fixedly connected to the third slider 151 through a second spring 153.

[0035] When the milling cutter 3 needs to be lubricated, first manually press the arc plate 143. When the arc plate 143 moves downward, it stretches the second spring 153, and the arc plate 143 drives the movement of the second slider 141. The second slider 141 drives the pressure ring 13 to move downward, and the airbag 11 can be squeezed by the pressure ring 13, so that the lubricant is sprayed to the milling cutter 3 through the nozzle 12. When lubrication is stopped, the arc plate 143 is released at this time. Under the elastic action of the second spring 153, the arc plate 143 is driven to reset, thereby driving the reset of the pressure ring 13, stopping the squeezing of the airbag 11, that is, stopping the nozzle 12 from spraying the lubricant.

[0036] The implementation principle of a quick tool changing device for a milling machine in the embodiment of the present application is as follows: when the milling cutter 3 needs to be replaced, first manually turn the hand wheel 84, the hand wheel 84 drives the rotation of the bidirectional screw rod 82, the bidirectional screw rod 82 drives the two moving blocks 83 to move backwards, the two moving blocks 83 drive the two first sliding blocks 5 to move backwards, thereby driving the fixing rod 6 to separate from the fixing groove 7, and the milling cutter 3 can be removed from the mounting sleeve 2, and then the new milling cutter 3 is put into the mounting sleeve 2 again, and the milling cutter 3 is limited by the engagement of the cross groove 91 and the cross block 92. When the fixing groove 7 on the milling cutter 3 moves to align with the fixing rod 6, at this time, under the reverse rotation of the hand wheel 84, the two moving blocks 83 can be driven to move toward each other by the bidirectional screw rod 82, so as to replace the milling cutter 3 with the fixed groove 7 on the milling cutter 3. By driving the fixing rod 6 to be inserted into the fixing groove 7, the milling cutter 3 can be installed and fixed, thereby facilitating the replacement of the milling cutter 3 and improving the replacement efficiency of the milling cutter 3. After the milling cutter 3 has been used for a long time, the arc plate 143 is manually pressed, and the arc plate 143 stretches the second spring 153, thereby driving the second slider 141 to move downward, and the second slider 141 drives the pressure ring 13 to move downward. During the movement of the pressure ring 13, the air bag 11 is squeezed. Under the squeezing action, the air bag 11 sprays lubricant to the milling cutter 3 through the nozzle 12, which can lubricate and protect the milling cutter 3, reduce the wear of the milling cutter 3, and increase the service life of the milling cutter 3. When lubrication is stopped, the arc plate 143 is released at this time, and under the action of the second spring 153, the arc plate 143 can be driven to reset.

[0037] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0038] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0039] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A quick tool changing device for a milling machine, comprising a mounting seat (1), characterized in that: A mounting sleeve (2) is fixed at the bottom end of the mounting seat (1), a milling cutter (3) is detachably provided in the mounting sleeve (2), first sliding grooves (4) are provided on both sides of the bottom end of the mounting seat (1), first sliders (5) are slidably connected in the two first sliding grooves (4), fixing rods (6) interlaced with the mounting sleeve (2) are fixed at the bottom ends of the two first sliders (5), fixing grooves (7) engaged with the fixing rods (6) are provided on both sides of the milling cutter (3), and a mounting assembly (8) for driving the first slider (5) to move is provided in the mounting seat (1).

2. A milling machine quick tool changing device as claimed in claim 1, characterized in that: A limiting assembly (9) for limiting the position of the milling cutter (3) is arranged in the installation sleeve (2), and the limiting assembly (9) comprises a cross slot (91) provided at the top end of the milling cutter (3), and the cross slot (91) is snap-connected with a cross block (92), and the cross block (92) is fixedly connected to the inner wall of the installation sleeve (2) via a telescopic rod (93), and the outer wall of the telescopic rod (93) is sleeved with a first spring (94).

3. A milling machine quick tool changing device as claimed in claim 2, characterized in that: The inner wall of the installation sleeve (2) is fixed with an annular plate (10) with a top opening located on the outer wall of the milling cutter (3), the inner wall of the annular plate (10) is fixed with an air bag (11), the bottom end of the annular plate (10) is fixed with a nozzle (12) connected to the air bag (11), the annular plate (10) is inserted and connected with a pressure ring (13) fixed to the air bag (11), and the installation sleeve (2) is provided with an extrusion component (14) for driving the pressure ring (13) to move.

4. A milling machine quick tool changing device as claimed in claim 3, characterized in that: The extrusion assembly (14) includes a second slider (141) fixedly arranged on both sides of the top of the pressure ring (13), and a second slide groove (142) for the second slider (141) to slide is opened on both sides of the installation sleeve (2), and the outer wall of the installation sleeve (2) is slidably provided with an arc plate (143) fixed to the second slider (141), and the arc plate (143) is connected to the installation sleeve (2) through an elastic assembly (15).

5. A milling machine rapid tool changing device as claimed in claim 4, characterized in that: The elastic component (15) comprises a third sliding block (151) fixedly arranged on the inner wall of the arc-shaped plate (143); the outer wall of the mounting sleeve (2) is provided with a third sliding groove (152) for the third sliding block (151) to slide; the third sliding groove (152) is fixedly connected to the third sliding block (151) via a second spring (153).

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