A quick tool changer for a machining center

Abstract

This utility model discloses a quick tool changer for machining centers, applicable in the machining center field. It includes a protective housing, with a fixing plate bolted to the inner wall of the protective housing. A screw is rotatably sleeved between the inner wall of the fixing plate and the inner wall of the protective housing. This utility model utilizes a first motor to drive a transmission shaft, causing a first bevel gear to rotate. The rotation of the first bevel gear then drives a second bevel gear to rotate the screw. The screw rotation causes a moving plate to move the tool head into the protective housing, where a cover plate is placed for protection. This achieves the purpose of protection, ensures the cleanliness of the tool head, and improves its safety. Furthermore, this utility model uses a moving slide to move a trapezoidal groove, causing a steel ball to disengage from the locking groove and enter the trapezoidal groove, allowing the tool head to be removed and replaced. This facilitates tool head replacement, reduces workload, improves replacement efficiency, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of machining centers, and in particular to a quick tool changer for machining centers. Background Technology

[0002] A search of Chinese patents revealed publication number CN211991983U, entitled "A Quick Tool Changer for Machining Centers," belonging to the field of machining technology. It mainly includes a base, a tool disc, a tool changing shaft, a tool changing motor, and a locking device. The tool changing shaft is mounted on the base via bearings. The tool disc is fixedly mounted on one end of the tool changing shaft, and the tool changing motor is connected to the other end of the shaft and fixedly mounted on the base. The locking device is mounted on the base and matches the tool changing shaft. This invention achieves tool changing by driving the tool disc to rotate with a motor, eliminating a series of complex manual operations such as loosening, clamping, unloading, and loading, as well as tool handling, thereby shortening tool changing time. It can be applied to most standard machine tools, improving machining efficiency, enabling multiple processes to be completed in a single setup, while significantly improving machining quality and reducing machining costs.

[0003] In summary, this quick tool changer lacks protective features. When not in use, the tool head is exposed, making it susceptible to dust accumulation and corrosion, which affects its lifespan. Furthermore, the exposed tool head is vulnerable to impacts, further complicating its use and hindering tool head replacement. The tool head is mounted in a slot on the tool holder and secured with end caps and bolts. Replacing the damaged tool head requires tools, which is cumbersome, increases workload, and reduces replacement efficiency. To address these issues, we propose a quick tool changer for machining centers. Utility Model Content

[0004] The purpose of this invention is to provide a quick tool changer for machining centers, which has the advantages of protective function and easy tool head replacement.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quick tool changer for a machining center, comprising a protective shell, a fixing plate bolted to the inner wall of the protective shell, a screw rotatably sleeved between the inner wall of the fixing plate and the inner wall of the protective shell, a movable plate threadedly connected to the surface of the screw, a tool changer mechanism provided on the surface of the movable plate, a first motor bolted to the top of the protective shell, the output end of the first motor extending into the interior of the protective shell and connected to a transmission shaft via a coupling, and the other end of the transmission shaft rotatably connected to the inner wall of the protective shell, a first bevel gear fixedly sleeved on the surface of the transmission shaft, a second bevel gear meshing on the surface of the first bevel gear, and the axis of the second bevel gear fixedly sleeved to one end of the screw, a cover plate covering one side of the protective shell, and a fixing mechanism provided between the cover plate and the protective shell.

[0006] By adopting the above technical solution, the rotation of the first motor drives the transmission shaft to rotate the first bevel gear, the rotation of the first bevel gear drives the second bevel gear to rotate the screw, and the rotation of the screw causes the moving plate to move the cutter head into the protective shell. The cover plate is then placed on top to protect it, which achieves the purpose of protection, ensures the cleanliness of the cutter head, and improves the safety of the cutter head.

[0007] The present invention is further configured such that: a tool holder is bolted to the surface of the tool changing mechanism; a tool head is slidably sleeved on the inner wall of the tool holder; a slide cylinder is slidably sleeved on the surface of the tool holder; a first spring is sleeved on the surface of the tool holder; a trapezoidal groove is formed on the inner wall of the slide cylinder; a steel ball is provided on the inner wall of the tool holder; and a snap-fit ​​groove is formed on the surface of the tool head, and the snap-fit ​​groove snaps into the steel ball.

[0008] By adopting the above technical solution, the trapezoidal groove is moved by moving the sliding cylinder. The movement of the trapezoidal groove causes the steel ball to disengage from the locking groove and enter the trapezoidal groove. Then, the cutter head is removed and replaced. This method can facilitate the replacement of the cutter head, reduce the workload, improve the replacement efficiency, and make it convenient to use.

[0009] The present invention is further configured such that: the tool changing mechanism includes a fixed shell, the fixed shell is bolted to the surface of the moving plate, a second motor is bolted to the inner wall of the fixed shell, and a tool disc is fixedly sleeved at the output end of the second motor, and the tool disc is bolted to the tool holder.

[0010] By adopting the above technical solution and setting up a tool changing mechanism, it is easy to change tools quickly.

[0011] The present invention is further configured such that: the fixing mechanism includes a plug rod, one end of which is bolted to the surface of the cover plate, and the plug rod is slidably sleeved with the inner wall of the protective shell; a limiting head is slidably sleeved on the inner wall of the plug rod; a second spring is fixedly connected between the limiting heads by a spring fixing member; a limiting hole is opened on the inner wall of the protective shell, and the limiting hole is engaged with the limiting head.

[0012] The above technical solution uses a fixing mechanism to secure the cover plate.

[0013] The present invention is further configured such that: an electric telescopic rod is bolted to the inner wall of the fixed shell, a fixed rod is bolted to the output end of the electric telescopic rod, and a fixed hole is opened on the surface of the cutter disc, and the fixed hole is engaged with one end of the fixed rod.

[0014] By adopting the above technical solution, the cutter head is fixed by setting an electric telescopic rod, a fixing rod, and a fixing hole, which prevents the cutter head from rotating during use and improves stability.

[0015] The present invention is further provided that the surface of the slide tube is provided with anti-slip texture.

[0016] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.

[0017] The present invention is further configured such that a handle is bolted to the surface of the cover plate.

[0018] By adopting the above technical solution, a handle is provided to facilitate opening the cover.

[0019] The present invention is further configured such that: a slider is bolted to the surface of the movable plate, and a groove is slidably connected to the surface of the slider, and the groove is formed on the inner wall of the protective shell.

[0020] By adopting the above technical solution, and by setting sliders and grooves, the moving plate is prevented from shifting, thus improving stability.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model uses a first motor to drive a transmission shaft, which in turn drives a first bevel gear to rotate. The rotation of the first bevel gear then drives a second bevel gear to rotate a screw. The rotation of the screw causes a moving plate to move the cutter head into a protective housing. The cover plate is then placed over the cutter head for protection. This method achieves the purpose of providing protection, ensuring the cleanliness of the cutter head, and improving its safety.

[0023] 2. This utility model uses a movable sliding cylinder to move the trapezoidal groove, which causes the steel ball to disengage from the locking groove and enter the trapezoidal groove. Then, the cutter head can be removed and replaced. This method facilitates the replacement of the cutter head, reduces workload, improves replacement efficiency, and is convenient to use. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3 This is a partial structural side sectional view of the present invention;

[0027] Figure 4 This is a top sectional view of a partial structure of this utility model;

[0028] Figure 5 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0029] Figure 6 This is a utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0030] Reference numerals: 1. Protective shell; 2. Fixing plate; 3. Screw; 4. Moving plate; 5. Tool changing mechanism; 6. First motor; 7. Drive shaft; 8. First bevel gear; 9. Second bevel gear; 10. Cover plate; 11. Fixing mechanism; 12. Tool holder; 13. Tool head; 14. Slide cylinder; 15. First spring; 16. Trapezoidal groove; 17. Steel ball; 18. Snap-fit ​​groove; 19. Fixing shell; 20. Second motor; 21. Tool disc; 22. Insert rod; 23. Limiting head; 24. Second spring; 25. Limiting hole; 26. Electric telescopic rod; 27. Fixing rod; 28. Fixing hole; 29. ​​Anti-slip texture; 30. Handle; 31. Slider; 32. Slide groove. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Example 1:

[0033] refer to Figure 1 and Figure 2A quick tool changer for a machining center includes a protective housing 1. A fixing plate 2 is bolted to the inner wall of the protective housing 1. A screw 3 is rotatably sleeved between the inner wall of the fixing plate 2 and the inner wall of the protective housing 1. A movable plate 4 is threaded onto the surface of the screw 3. A tool changer 5 is provided on the surface of the movable plate 4. A first motor 6 is bolted to the top of the protective housing 1. The output end of the first motor 6 extends into the interior of the protective housing 1 and is connected to a drive shaft 7 via a coupling. The other end of the drive shaft 7 is rotatably connected to the inner wall of the protective housing 1. A first bevel gear 8 is fixedly sleeved on the surface of the drive shaft 7. The surface of the first bevel gear 8 meshes with... The device includes a second bevel gear 9, with its shaft fixedly connected to one end of the screw 3. A cover plate 10 is provided on one side of the protective shell 1, and a fixing mechanism 11 is provided between the cover plate 10 and the protective shell 1. The rotation of the first motor 6 drives the transmission shaft 7 to rotate the first bevel gear 8, which in turn drives the second bevel gear 9 to rotate the screw 3. The rotation of the screw 3 causes the moving plate 4 to move the cutter head 13 into the protective shell 1. By covering it with the cover plate 10, the device achieves the purpose of protection, ensures the cleanliness of the cutter head 13, and improves its safety.

[0034] refer to Figure 2 and Figure 3 The tool changing mechanism 5 includes a fixed housing 19, which is bolted to the surface of the moving plate 4. A second motor 20 is bolted to the inner wall of the fixed housing 19. A tool disc 21 is fixedly sleeved at the output end of the second motor 20 and bolted to the tool holder 12. By setting the tool changing mechanism 5, it is convenient to change tools quickly.

[0035] refer to Figure 2 and Figure 6 The fixing mechanism 11 includes a rod 22, one end of which is bolted to the surface of the cover plate 10, and the rod 22 is slidably sleeved with the inner wall of the protective shell 1. A limiting head 23 is slidably sleeved on the inner wall of the rod 22. A second spring 24 is fixedly connected between the limiting heads 23 by a spring fixing member. A limiting hole 25 is opened on the inner wall of the protective shell 1, and the limiting hole 25 is engaged with the limiting head 23. The cover plate 10 is fixed by setting the fixing mechanism 11.

[0036] refer to Figure 2 and Figure 3 An electric telescopic rod 26 is bolted to the inner wall of the fixed shell 19. A fixed rod 27 is bolted to the output end of the electric telescopic rod 26. A fixing hole 28 is opened on the surface of the cutter head 21, and the fixing hole 28 is engaged with one end of the fixing rod 27. By setting the electric telescopic rod 26, the fixed rod 27 and the fixing hole 28, the cutter head 21 is fixed to prevent it from rotating during use and to improve stability.

[0037] Example 2:

[0038] refer to Figure 2, Figure 3 , Figure 4 and Figure 5 The tool changing mechanism 5 has a tool holder 12 bolted to its surface, a tool head 13 slidably sleeved on the inner wall of the tool holder 12, a slide cylinder 14 slidably sleeved on the surface of the tool holder 12, a first spring 15 sleeved on the surface of the tool holder 12, a trapezoidal groove 16 formed on the inner wall of the slide cylinder 14, a steel ball 17 provided on the inner wall of the tool holder 12, and a snap-fit ​​groove 18 formed on the surface of the tool head 13, which snaps into the steel ball 17. By moving the slide cylinder 14, the trapezoidal groove 16 is moved, causing the steel ball 17 to disengage from the snap-fit ​​groove 18 and enter the trapezoidal groove 16, and then the tool head 13 can be removed and replaced. This method facilitates the replacement of the tool head 13, reduces workload, improves replacement efficiency, and is convenient to use.

[0039] refer to Figure 5 The surface of the slide cylinder 14 is provided with anti-slip texture 29. By setting the anti-slip texture 29, the hand slips and the operation is facilitated.

[0040] refer to Figure 1 and Figure 2 A handle 30 is bolted to the surface of the cover plate 10, which makes it easy to open the cover plate 10.

[0041] refer to Figure 2 A slider 31 is bolted to the surface of the movable plate 4, and a groove 32 is slidably connected to the surface of the slider 31. The groove 32 is opened on the inner wall of the protective shell 1. By setting the slider 31 and the groove 32, the movable plate 4 is prevented from shifting and the stability is improved.

[0042] Brief description of usage: During use, move handle 30 to open cover 10. The first motor 6 rotates, driving the transmission shaft 7 to rotate. The transmission shaft 7 rotates, driving the first bevel gear 8 to rotate. The first bevel gear 8 rotates, driving the second bevel gear 9 to rotate. The second bevel gear 9 rotates, driving the screw 3 to rotate. The screw 3 rotates, causing the moving plate 4 to move the cutter head 13 out of the protective shell 1 for use. When changing the cutter, the electric telescopic rod 26 drives the fixing rod 27 to retract, disengaging the fixing rod 27 from the fixing hole 28. Then, the second motor 20 rotates, driving the cutter disc 21 to rotate the cutter holder 12. The cutter holder 12 rotates, driving the cutter head 13 to rotate. Rotate the required cutter head 13 to the top. Then, the electric telescopic rod 26 drives the fixing rod 27 to insert into the fixing hole 28 to fix it, completing the cutter change. After use, the first motor... 6. Reverse rotation moves the cutter head 13 into the protective housing 1. Then, cover the cover plate 10, causing the limiting head 23 to engage with the limiting hole 25 under the action of the second spring 24, thus fixing the cover plate 10 and achieving the purpose of protection. When the cutter head 13 needs to be replaced, move the slide cylinder 14. The movement of the slide cylinder 14 drives the trapezoidal groove 16 to move. When the trapezoidal groove 16 moves to the position of the steel ball 17, the steel ball 17 disengages from the fixing groove and enters the trapezoidal groove 16. Remove the cutter head 13, install the new cutter head 13 into the cutter holder 12, release the slide, and the slide cylinder 14 drives the trapezoidal groove 16 to reset under the action of the first spring 15. The reset of the trapezoidal groove 16 causes the steel ball 17 to engage with the locking groove 18, fixing the cutter head 13 and completing the replacement, thus facilitating the replacement of the cutter head 13.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A quick tool changer for machining center comprising a protective shell (1), characterized in that, A fixing plate (2) is bolted to the inner wall of the protective shell (1). A screw (3) is rotatably sleeved between the inner wall of the fixing plate (2) and the inner wall of the protective shell (1). A moving plate (4) is threaded onto the surface of the screw (3). A tool changing mechanism (5) is provided on the surface of the moving plate (4). A first motor (6) is bolted to the top of the protective shell (1). The output end of the first motor (6) extends into the interior of the protective shell (1) and is connected to a transmission shaft (7) via a coupling. The other end of the transmission shaft (7) is rotatably connected to the inner wall of the protective shell (1). A first bevel gear (8) is fixedly sleeved on the surface of the transmission shaft (7). A second bevel gear (9) meshes with the surface of the first bevel gear (8). The shaft of the second bevel gear (9) is fixedly sleeved with one end of the screw (3). A cover plate (10) is provided on one side of the protective shell (1). A fixing mechanism (11) is provided between the cover plate (10) and the protective shell (1).

2. The quick tool changer for machining center according to claim 1, characterized in that, The tool changing mechanism (5) is bolted with a tool holder (12), and a tool head (13) is slidably sleeved on the inner wall of the tool holder (12). A slide cylinder (14) is slidably sleeved on the surface of the tool holder (12). A first spring (15) is sleeved on the surface of the tool holder (12). A trapezoidal groove (16) is opened on the inner wall of the slide cylinder (14). A steel ball (17) is provided on the inner wall of the tool holder (12). A snap-fit ​​groove (18) is opened on the surface of the tool head (13), and the snap-fit ​​groove (18) snaps with the steel ball (17).

3. The quick tool changer for machining center according to claim 1, characterized in that, The tool changing mechanism (5) includes a fixed shell (19), which is bolted to the surface of the moving plate (4). A second motor (20) is bolted to the inner wall of the fixed shell (19). A tool disc (21) is fixedly sleeved at the output end of the second motor (20), and the tool disc (21) is bolted to the tool holder (12).

4. The quick tool changer for a machining center according to claim 1, characterized in that, The fixing mechanism (11) includes a plug rod (22), one end of which is bolted to the surface of the cover plate (10), and the plug rod (22) is slidably sleeved to the inner wall of the protective shell (1). The inner wall of the plug rod (22) is slidably sleeved to a limiting head (23), and a second spring (24) is fixedly connected between the limiting heads (23) by a spring fixing member. The inner wall of the protective shell (1) is provided with a limiting hole (25), and the limiting hole (25) is engaged with the limiting head (23).

5. The quick tool changer for machining center according to claim 3, wherein, An electric telescopic rod (26) is bolted to the inner wall of the fixed shell (19), and a fixed rod (27) is bolted to the output end of the electric telescopic rod (26). A fixed hole (28) is opened on the surface of the cutter head (21), and the fixed hole (28) is engaged with one end of the fixed rod (27).

6. The quick tool changer for machining center according to claim 2, wherein, The surface of the slide (14) is provided with anti-slip texture (29).

7. The quick tool changer for machining center according to claim 1, wherein, A handle (30) is bolted to the surface of the cover plate (10).

8. The quick tool changer for machining center according to claim 1, wherein, The surface of the movable plate (4) is bolted with a slider (31), and the surface of the slider (31) is slidably connected with a groove (32), and the groove (32) is opened on the inner wall of the protective shell (1).

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