A four-axis machining center

Abstract

The application discloses a four-axis machining center, which comprises a rack and a machining mechanism, the rack is provided with a first translation frame, the first translation frame is provided with a second translation frame, the second translation frame is provided with two supports and a support assembly rotatably arranged between the two supports, the support assembly comprises two rotating wheels and a support plate arranged between the two rotating wheels, and the two rotating wheels are rotatably connected with the two supports respectively; the machining mechanism comprises a lifting frame of the rack, a main shaft and a second motor, the main shaft is used for mounting a cutter, the main shaft comprises a jaw, a pull rod, an elastic element for driving the pull rod to clamp the cutter, the rack is provided with a first seat, the bottom of the first seat is provided with a first inclined surface, the lifting frame is provided with a swing arm, the swing arm is provided with a cam, the cam is in abutment with the first inclined surface to drive the swing arm to swing, and the swing arm swings to drive the pull rod to drive the jaw to release the clamp. The four-axis machining center can drive the pull rod to drive the jaw to release the clamp by using the driving force of the main shaft rising, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of processing equipment, in particular to a four-axis machining center. BACKGROUND

[0002] The four-axis machining center is a kind of machining equipment.

[0003] The existing four-axis machining center generally has a first seat, which is used to abut and limit the upward movement of the main shaft pushing the tool.

[0004] Structurally, the four-axis machining center comprises a machine frame and a main shaft, the main shaft is used to install a tool, the main shaft is provided with a tool jaw, a pull rod for clamping and releasing the tool, and an elastic element for driving the pull rod to clamp the tool jaw, and the elastic element drives the pull rod to clamp the tool jaw when the four-axis machining center is in a machining state, so that the tool is stably fixed on the tool jaw.

[0005] However, the existing four-axis machining center needs to additionally set a power element on the main shaft to drive the pull rod to clamp the tool jaw for tool changing, which is complex in structure. SUMMARY

[0006] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a four-axis machining center, which can use the driving force of the main shaft upward movement to drive the pull rod to clamp the tool jaw, and the structure is simple.

[0007] According to the four-axis machining center of the first aspect of the present application, the machine frame is provided with a first translation frame, the first translation frame is provided with a second translation frame, the sliding direction of the first translation frame is perpendicular to the sliding direction of the second translation frame, the second translation frame is provided with two supports and a support assembly rotating between the two supports, the support assembly comprises two rotating wheels and a support plate between the two rotating wheels, the two rotating wheels are respectively connected with the two supports, and the support plate is used to install a clamp, one of the supports is provided with a first motor, and the first motor is used to drive the rotating wheel to rotate. The machining mechanism comprises a lifting frame connected with the machine frame in up-down sliding mode, a main shaft provided on the lifting frame, and a second motor for driving the main shaft to rotate, the main shaft is used to install a tool, the main shaft comprises a tool jaw, a pull rod for clamping and releasing the tool, and an elastic element for driving the pull rod to clamp the tool jaw, the machine frame is provided with a first seat, the bottom of the first seat is provided with a first inclined surface, the lifting frame is provided with a swing arm, the middle part of the swing arm is hinged with the lifting frame, one end of the swing arm is provided with a cam, the cam is in abutment with the first inclined surface to drive the swing arm to swing, and the swing arm drives the pull rod to clamp the tool jaw.

[0008] According to the four-axis machining center provided by the embodiment of the present application, at least the following beneficial effects can be achieved:

[0009] 1. The first translation frame is arranged on the frame to slide, the second translation frame is arranged on the first translation frame to slide, the sliding direction of the first translation frame is perpendicular to the sliding direction of the second translation frame, the second translation frame is provided with two supports and the support assembly is rotatably arranged between the two supports, so that the first translation frame, the second translation frame and the support assembly can drive the product to move along the X-axis and the Y-axis which are perpendicular to each other in the horizontal direction and rotate along the rotation axis of the support assembly, thereby realizing the multidirectional movement of the product by the machining center.

[0010] 2. Two rotating wheels are arranged on the support assembly and the support plate is arranged between the two rotating wheels, the two rotating wheels are rotatably connected with the two supports respectively, the support plate is used for mounting the clamp, one of the two supports is provided with the first motor, the first motor is used for driving the rotating wheels to rotate, so that the two rotating wheels can cooperate to support the two ends of the support plate, and the support plate is more stable.

[0011] 3. The machining mechanism is arranged, the machining mechanism comprises the lifting frame which is connected with the frame to slide up and down, the main shaft which is arranged on the lifting frame and the second motor which drives the main shaft to rotate, the main shaft is used for mounting the cutter, the main shaft comprises the claw, the pull rod which drives the claw to clamp and release the cutter and the elastic element which drives the pull rod to drive the claw to clamp the cutter, so that when the four-axis machining center is in the machining state, the elastic element keeps driving the pull rod to drive the claw to clamp the cutter, and the cutter is stably fixed on the claw.

[0012] 4. The first seat is arranged on the frame, the bottom of the first seat is provided with the first inclined surface, the lifting frame is provided with the swing arm, the middle part of the swing arm is hinged with the lifting frame, one end of the swing arm is provided with the cam, the cam is abutted with the first inclined surface to drive the swing arm to swing, and the swing arm swings to drive the pull rod of the swing arm to drive the claw to release the clamp. It can be understood that when the four-axis machining center needs to change the cutter, the lifting frame is lifted to make the cam abutted with the first inclined surface, so that the end of the swing arm away from the cam swings downward, so that the pull rod of the swing arm moves against the elastic force of the elastic element, so that the pull rod can drive the claw to release the clamp, so that the four-axis machining center can drive the pull rod to drive the claw to release the clamp by using the driving force of the lifting frame rising, and the structure is simple.

[0013] According to some embodiments of the present application, the frame is provided with a limiting groove for accommodating the up-down movement of the first seat, the first seat is provided with a first waist hole which penetrates front to back, the length direction of the first waist hole is arranged along the vertical direction, and the first waist hole is provided with a first bolt for connecting the frame.

[0014] According to some embodiments of the present application, the first seat comprises a first vertical plate and a protrusion arranged on the side of the first plate away from the limiting groove, the protrusion extends upward and downward, the first inclined surface is arranged at the bottom of the protrusion, and the first waist hole is arranged on the first plate.

[0015] According to some embodiments of the present application, at least two first waist holes are arranged, and the at least two first waist holes are respectively arranged on the left and right sides of the protrusion.

[0016] According to some embodiments of the present application, one end of the swing arm is provided with a protrusion, the protrusion protrudes horizontally in the direction close to the first seat, the protrusion has a receiving groove, the receiving groove has a first shaft, and the cam is rotationally connected with the first shaft.

[0017] According to some embodiments of the present application, one end of the swing arm away from the cam is provided with a semicircular groove, the semicircular groove accommodates the pull rod, the inner wall of the semicircular groove is provided with an abutting portion, the pull rod is provided with a ring groove, the ring groove accommodates the abutting portion, and the abutting portion and the ring groove abut to drive the pull rod to move.

[0018] According to some embodiments of the present application, a first guide rod is arranged on the rack, and a first sliding groove accommodating the sliding of the first guide rod is arranged at the bottom of the first translation frame.

[0019] According to some embodiments of the present application, the rack is further provided with a first lead screw for driving the first translation frame to translate, the first lead screw is rotationally connected with the rack, and the first lead screw is threadedly connected with the first translation frame.

[0020] According to some embodiments of the present application, a second guide rod is arranged at the top of the first translation frame, and a second sliding groove accommodating the sliding of the second guide rod is arranged at the bottom of the second translation frame.

[0021] According to some embodiments of the present application, the first translation frame is further provided with a second lead screw for driving the second translation frame to translate, the second lead screw is rotationally connected with the first translation frame, and the second lead screw is threadedly connected with the second translation frame.

[0022] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0024] Figure 1 FIG. 1 is a structural schematic diagram of a four-axis machining center according to an embodiment of the present application;

[0025] Figure 2 is shown in the front view; Figure 1

[0026] Figure 3 is shown in the front view; Figure 2

[0027] Figure 4 is shown in the front view; Figure 3

[0028] Figure 5 is shown in the front view; Figure 1

[0029] Reference signs: 100 - rack, 110 - first translation frame, 120 - second translation frame, 130 - support, 140 - support assembly, 150 - rotating wheel, 160 - support plate, 170 - first motor, 180 - machining mechanism, 190 - lifting frame, 200 - main shaft, 201 - claw, 202 - pull rod, 203 - elastic piece, 210 - second motor, 220 - first seat, 230 - first inclined surface, 240 - cam, 250 - limiting groove, 260 - first waist hole, 270 - first plate, 280 - convex strip, 290 - swing arm, 300 - convex part, 310 - containing groove, 320 - first shaft, 330 - semicircular groove, 340 - abutting part, 341 - ring groove, 350 - first guide rod, 360 - first screw rod, 370 - second guide rod, 380 - second screw rod. DETAILED DESCRIPTION

[0030] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] ​​​​In the description of the present application, several meanings are one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described to the first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Next, a four-axis machining center according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0035] With reference to Figure 1 , Figure 2 and Figure 3 , a four-axis machining center according to an embodiment of the present application comprises a rack 100 and a machining mechanism 180.

[0036] For the rack 100, a first translation frame 110 is slidingly arranged on the rack 100, a second translation frame 120 is slidingly arranged on the first translation frame 110, the sliding direction of the first translation frame 110 is perpendicular to the sliding direction of the second translation frame 120, two supports 130 are arranged on the second translation frame 120, and a support assembly 140 is rotatably arranged between the two supports 130, so that the first translation frame 110, the second translation frame 120 and the support assembly 140 cooperate to drive the product to move along the X-axis and the Y-axis which are perpendicular to each other in the horizontal direction and rotate along the rotation axis of the support assembly 140, and then the multi-directional movement of the machining center to the product is realized.

[0037] Specifically, the support assembly 140 comprises two rotating wheels 150 and a support plate 160 arranged between the two rotating wheels 150, the two rotating wheels 150 are rotatably connected with the two supports 130 respectively, and the support plate 160 is used for mounting a clamp. One of the two supports 130 is provided with a first motor 170, and the first motor 170 is used to drive the rotating wheel 150 to rotate, so that the two rotating wheels 150 can cooperate to support both ends of the support plate 160, so that the support plate 160 is more stable.

[0038] In some specific embodiments, the first guide rod 350 is arranged on the rack 100, and the bottom of the first translation frame 110 is provided with a first sliding groove for accommodating the sliding of the first guide rod 350, so that the first guide rod 350 and the first sliding groove can be guided in cooperation, and thus the moving direction of the first translation frame 110 is more accurate.

[0039] In some specific embodiments, the rack 100 is further provided with a first lead screw 360 for driving the first translation frame 110 to translate, the first lead screw 360 is rotationally connected with the rack 100, and the first lead screw 360 is threadedly connected with the first translation frame 110, so that the translation speed of the first translation frame 110 is more stable.

[0040] Further, the rack 100 is provided with a third motor for driving the first lead screw 360 to rotate.

[0041] In some specific embodiments, the top of the first translation frame 110 is provided with a second guide rod 370, and the bottom of the second translation frame 120 is provided with a second sliding groove for accommodating the sliding of the second guide rod 370, so that the second guide rod 370 and the second sliding groove can be guided in cooperation, and thus the moving direction of the second translation frame 120 is more accurate.

[0042] In some specific embodiments, the first translation frame 110 is further provided with a second lead screw 380 for driving the second translation frame 120 to translate, the second lead screw 380 is rotationally connected with the first translation frame 110, and the second lead screw 380 is threadedly connected with the second translation frame 120, so that the moving speed of the second translation frame 120 is more stable.

[0043] Further, the first translation frame 110 is provided with a fourth motor for driving the second lead screw 380 to rotate.

[0044] In some specific embodiments, the rack 100 is further provided with a waste groove, the waste groove is located below the first translation frame 110, the bottom wall of the waste groove is inclined, and the low end of the bottom wall of the waste groove is provided with a waste port, so that the debris and cutting fluid generated after the machining center processes the product can automatically flow out of the waste port along the inclined direction of the bottom wall of the waste groove, and thus the debris and cutting fluid are prevented from accumulating in the rack 100, and the interior of the rack 100 is more tidy.

[0045] Referring to Figure 3 , Figure 4 and Figure 5For the machining mechanism 180, the machining mechanism 180 comprises a lifting frame 190 slidingly connected to the frame 100, a main shaft 200 arranged on the lifting frame 190, and a second motor 210 driving the main shaft 200 to rotate, the main shaft 200 being used for mounting a tool, the main shaft 200 comprising a tool jaw 201, a pull rod 202 driving the tool jaw 201 to clamp and release the tool, and an elastic member 203 driving the pull rod 202 to drive the tool jaw 201 to clamp the tool, so that when the four-axis machining center is in a machining state, the elastic member 203 keeps driving the pull rod 202 to drive the tool jaw 201 to clamp the tool, so that the tool is stably fixed on the tool jaw 201.

[0046] Specifically, the elastic member 203 is a spring.

[0047] In addition, the bottom of the pull rod 202 is provided with a tapered portion, and the pull rod 202 is lifted to make the tapered portion cooperate with the tool jaw 201 to drive the tool jaw 201 to tightly clamp or release.

[0048] Further, the frame 100 is provided with a first seat 220, the bottom of the first seat 220 is provided with a first inclined surface 230, the lifting frame 190 is provided with a swing arm 290, the middle part of the swing arm 290 is hinged to the lifting frame 190, one end of the swing arm 290 is provided with a cam 240, the cam 240 abuts against the first inclined surface 230 to drive the swing arm 290 to swing, and the swing arm 290 swings to drive the pull rod 202 to drive the tool jaw 201 to release.

[0049] It can be understood that when the four-axis machining center needs to change the tool, the lifting frame 190 is lifted to make the cam 240 abut against the first inclined surface 230, so that one end of the swing arm 290 away from the cam 240 swings downward, so that the swing arm 290 drives the pull rod 202 to move against the elastic force of the elastic member 203, so that the pull rod 202 can drive the tool jaw 201 to release, so that the four-axis machining center can use the driving force of the lifting frame 190 rising to drive the pull rod 202 to drive the tool jaw 201 to release, and the structure is simple.

[0050] In some specific embodiments, the frame 100 is provided with a limiting slot 250 accommodating the first seat 220 to move up and down, the first seat 220 is provided with a first waist hole 260 penetrating front to back, the length direction of the first waist hole 260 is arranged along the vertical direction, and the first waist hole 260 is provided with a first bolt used for connecting the frame 100.

[0051] It can be understood that the first seat 220 and the frame 100 can be connected through the first bolt, so that the first seat 220 can be disassembled on the frame 100, and at the same time, by changing the position of the first bolt in the first waist hole 260, the fixed position of the first seat 220 on the frame 100 can be adjusted, so that the height of the first seat 220 is adjusted, and then the limiting height of the first seat 220 to the lifting seat is adjusted.

[0052] In some specific embodiments, the first seat 220 comprises a first vertical plate 270 and a protrusion 280 arranged on the side of the first plate 270 away from the limiting groove 250, the protrusion 280 extends upward and downward, the first inclined surface 230 is arranged at the bottom of the protrusion 280, and the first waist hole 260 is arranged on the first plate 270, so that the first inclined surface 230 can extend away from the limiting groove 250, facilitating the abutment of the first inclined surface 230 and the cam 240, and meanwhile, the arrangement of the first waist hole 260 on the first plate 270 can avoid the interference of the first bolt located in the first waist hole 260 with the cam 240.

[0053] Further, the first waist hole 260 is arranged at least twice, and the at least two first waist holes 260 are respectively arranged on the left and right sides of the protrusion 280, so that the connection between the first seat 220 and the rack 100 is more stable.

[0054] In some specific embodiments, one end of the swing arm 290 is provided with a protrusion 300, the protrusion 300 protrudes horizontally in the direction close to the first seat 220, the protrusion 300 has a containing groove 310, the containing groove 310 has a first shaft 320, and the cam 240 is rotationally connected with the first shaft 320, so as to avoid the collision between the first seat 220 and the supporting part.

[0055] In some specific embodiments, the bottom end of the output shaft of the second motor 210 is provided with a square hole, the top end of the pull rod 202 is provided with a square rod part, the square hole accommodates the square rod part to slide up and down, and the square hole cooperates with the square rod part to limit the position.

[0056] In some specific embodiments, one end of the swing arm 290 away from the cam 240 is provided with a semicircular groove 330, the semicircular groove 330 accommodates the pull rod 202, the inner wall of the semicircular groove 330 is provided with an abutment part 340, the pull rod 202 is provided with a ring groove 341, the ring groove 341 accommodates the abutment part 340, and the abutment part 340 abuts with the ring groove 341 to drive the pull rod 202 to move, so that when the main shaft 200 drives the pull rod 202 to rotate, the abutment part 340 can move along the ring groove 341, avoiding the abutment part 340 from hindering the rotation of the pull rod 202.

[0057] In some specific embodiments, the rack 100 is provided with a third guide rod extending upward and downward, and the lifting frame 190 is provided with a third sliding groove accommodating the third guide rod to slide, so that the third guide rod and the third sliding groove can cooperate to slide, and further, the lifting of the lifting frame 190 is more stable.

[0058] In some specific embodiments, the rack 100 is provided with a third vertical screw, the third vertical screw is rotationally connected with the rack 100, the third vertical screw is threadedly connected with the lifting frame 190, and the third vertical screw is used to drive the lifting frame 190 to lift.

[0059] Further, the rack 100 is further provided with a fifth motor, which is used to drive the third screw rod to rotate.

[0060] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art in the technical field without departing from the purpose of the present application.

Claims

1. A four-axis machining center, characterized by, The utility model relates to a kind of machining device, including: Rack (100), first translation frame (110) is arranged on the rack (100) slidingly, second translation frame (120) is arranged on the first translation frame (110) slidingly, the sliding direction of the first translation frame (110) is perpendicular to the sliding direction of the second translation frame (120), two supports (130) are arranged on the second translation frame (120), and support assembly (140) is rotatably arranged between two supports (130), the support assembly (140) includes two rotating wheels (150) and support plate (160) arranged between two rotating wheels (150), two rotating wheels (150) are rotatably connected with two supports (130) respectively, and the support plate (160) is used to install clamp, one of the supports (130) is provided with first motor (170), and the first motor (170) is used to drive rotating wheel (150) rotation; Processing mechanism (180), including lifting frame (190) slidingly connected with the rack (100) up and down, main shaft (200) arranged on the lifting frame (190) and second motor (210) driving the main shaft (200) rotation, the main shaft (200) is used to install cutter, the main shaft (200) includes jaw (201), pull rod (202) driving jaw (201) clamping cutter and loosening cutter, elastic member (203) driving pull rod (202) driving jaw (201) clamping cutter, the rack (100) is provided with first seat (220), the bottom of the first seat (220) is provided with first inclined plane (230), the lifting frame (190) is provided with swing arm (290), the middle part of swing arm (290) is hinged with lifting frame (190), one end of swing arm (290) is provided with cam (240), cam (240) is abutted with first inclined plane (230) to drive swing arm (290) swing, swing arm (290) swings to make swing arm (290) drive pull rod (202) drive jaw (201) loose clamp; The end of the swing arm (290) away from the cam (240) is provided with a semicircular groove (330), the semicircular groove (330) accommodates the pull rod (202), the inner wall of the semicircular groove (330) is provided with an abutting portion (340), the pull rod (202) is provided with a ring groove (341), the ring groove (341) accommodates the abutting portion (340), the abutting portion (340) is abutted with the ring groove (341) to drive the pull rod (202) to move, when the main shaft (200) drives the pull rod (202) to rotate, the abutting portion (340) can move along the ring groove (341); The bottom of the pull rod (202) is provided with a tapered portion, the pull rod (202) is lifted to make the tapered portion cooperate with the jaw (201) to drive the jaw (201) to tightly grasp or loose clamp.

2. A four-axis machining center according to claim 1, characterized in that The rack (100) is provided with a limiting groove (250) for accommodating the up-down movement of the first seat (220), the first seat (220) is provided with a first waist hole (260) penetrating front and back, the length direction of the first waist hole (260) is arranged along the vertical direction, and the first waist hole (260) is provided with a first bolt for connecting the rack (100).

3. A four-axis machining center according to claim 2, characterized in that The first seat (220) comprises a vertical first plate (270) and a convex strip (280) arranged on the side of the first plate (270) away from the limiting groove (250), the convex strip (280) extends up and down, the first inclined surface (230) is arranged at the bottom of the convex strip (280), and the first waist hole (260) is arranged on the first plate (270).

4. A four-axis machining center according to claim 3, characterized in that, The first waist hole (260) is provided with at least two, and the at least two first waist holes (260) are respectively located on the left and right sides of the convex strip (280).

5. A four-axis machining center according to claim 1, characterized in that, One end of the swing arm (290) is provided with a convex part (300), the convex part (300) protrudes horizontally in the direction close to the first seat (220), the convex part (300) has an accommodating groove (310), the accommodating groove (310) has a first shaft (320), and the cam (240) is rotationally connected with the first shaft (320).

6. A four-axis machining center according to claim 1, characterized in that, The rack (100) is provided with a first guide rod (350), and the bottom of the first translation frame (110) is provided with a first sliding groove for accommodating the sliding of the first guide rod (350).

7. A four-axis machining center according to claim 1, characterized in that, The rack (100) is further provided with a first lead screw (360) for driving the translation of the first translation frame (110), the first lead screw (360) is rotationally connected with the rack (100), and the first lead screw (360) is threadedly connected with the first translation frame (110).

8. A four-axis machining center according to claim 1, characterized in that, The top of the first translation frame (110) is provided with a second guide rod (370), and the bottom of the second translation frame (120) is provided with a second sliding groove for accommodating the sliding of the second guide rod (370).

9. A four-axis machining center according to claim 1, characterized in that, The first translation frame (110) is further provided with a second lead screw (380) for driving the translation of the second translation frame (120), the second lead screw (380) is rotationally connected with the first translation frame (110), and the second lead screw (380) is threadedly connected with the second translation frame (120).

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