Cutter collision prevention structure of vertical machining center machine tool

Abstract

The utility model relates to the technical field of machining center machine tools, in particular to a cutter collision prevention structure of a vertical machining center machine tool. The fixing ring is fixedly mounted on the inner wall of the top of the annular frame; first mounting grooves which are annularly distributed at equal intervals are formed in the bottom of the fixing ring, and the rotating plate is rotationally connected into the first mounting grooves through pin shafts; the swing assembly is arranged at the top of the rotating plate and in the annular frame; a protection plate is arranged on one side of each rotating plate, and a buffering assembly is arranged between each protection plate and the corresponding rotating plate. When a cutter is about to collide with a workpiece, a chuck and the like, the protective plate is contacted with the cutter at the first time, the cutter is prevented from directly contacting with the workpiece, the chuck and the like, the cutter is effectively protected, the emergency stop switch is synchronously triggered, the cutter stops running, the cutter is prevented from being collided continuously, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical machining center machine tools, and particularly to an anti-collision tool structure for a vertical machining center machine tool. Background Technique

[0002] A vertical machining center machine tool is a highly automated multi-functional numerical control machine tool with a tool magazine and an automatic tool changer, and also refers to a machining center with a spindle axis perpendicular to the workbench. It is mainly suitable for machining complex parts such as plates, discs, molds, and small shell parts, and can complete processes such as milling, boring, drilling, tapping, and cutting threads. At present, the numerical control level of vertical machining center machine tools is very high, which brings a lot of convenience to operation. However, there are also many potential dangers. For example, in the process of tool movement, there may be tool collision events where the tool accidentally collides with the workpiece, chuck, or tailstock, etc., which may cause workpiece scrapping, tool damage, component damage, accuracy decline, and even directly threaten the personal safety of processing personnel.

[0003] After retrieval, an anti-collision tool device for a vertical machining center machine tool with a patent publication number of CN217254928U belongs to the technical field of machining center machine tool equipment, including a machining machine tool. A workbench is arranged inside the machining machine tool, a fixed seat is arranged at the upper end of the workbench, and buffer protection components are symmetrically arranged on one side of the fixed seat. The buffer protection components include a moving block, a sliding block, a sliding seat, and a connecting plate. Among them, connecting plates are symmetrically arranged on one side of the fixed seat, a sliding seat is arranged at the lower end of the connecting plate, a sliding block is arranged inside the sliding seat, and a moving block is arranged at the lower end of the sliding block.

[0004] In the process of implementing the above scheme, it is found that the following problems in the prior art have not been well solved: The prior art realizes the buffer protection of the tool head through the arranged buffer protection components, avoiding the problem of tool head damage caused by the tool head falling too fast and colliding with the workpiece. However, inside a vertical machining center machine tool, the tool needs to move horizontally, and there is no good anti-collision tool structure around the tool, resulting in problems such as the tool colliding with the workpiece, chuck, etc. during horizontal movement, thus causing tool damage and other problems. Therefore, it is urgent to design an anti-collision tool structure for a vertical machining center machine tool to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-collision tool structure for a vertical machining center machine tool to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An anti-collision tool structure for a vertical machining center machine tool, including:

[0008] Ring-shaped frame;

[0009] Fixed ring, the fixed ring is fixedly installed on the top inner wall of the ring-shaped frame;

[0010] Rotating plate, the bottom of the fixed ring is provided with a plurality of first mounting grooves distributed in an annular shape at equal distances, and the rotating plate is rotatably connected inside the first mounting grooves through a pin shaft;

[0011] Swinging assembly, the swinging assembly is arranged on the top of the rotating plate and inside the ring-shaped frame;

[0012] On one side of each rotating plate, a protective plate is provided, and a buffer assembly is arranged between the protective plate and the rotating plate. On one side of each rotating plate, a second mounting groove is provided, and pressure sensors are fixedly installed on the inner walls of the second mounting grooves. On one side of each protective plate, an extrusion seat is fixed, and the extrusion seat is in contact with the pressure sensor.

[0013] Furthermore, the ring-shaped frame is installed at the bottom of the spindle box, the spindle box is installed on the vertical machining center machine body, the tool is installed on the spindle of the spindle box, and the ring-shaped frame and the rotating plate wrap the tool.

[0014] Furthermore, the swinging assembly includes a lifting ring sleeved on the inner wall of the ring-shaped frame, and a plurality of tooth plates are fixedly arranged on the outer wall of the lifting ring at equal distances in an annular shape. Third mounting grooves are provided on the top of each rotating plate, and a defective gear is fixedly installed on the inner wall of each third mounting groove. The defective gear meshes with the tooth plate. One side of the top inner wall of the ring-shaped frame is rotatably connected with a threaded rod, and a positive and negative rotation motor for driving the threaded rod to rotate is fixedly installed on one side of the bottom inner wall of the ring-shaped frame. On both sides of the outer wall of the lifting ring, hanging ears are fixedly arranged. A threaded groove adapted to the outer wall of the threaded rod is provided in one of the hanging ears.

[0015] Furthermore, the bottom of the ring-shaped frame is provided with a plurality of through openings distributed in an annular shape at equal distances, and the through openings allow the rotating plate to move.

[0016] Furthermore, a guiding hole is provided in the other hanging ear, and a guiding column passing through the guiding hole is fixedly installed on the inner wall of the ring-shaped frame.

[0017] Furthermore, the buffer assembly includes a plurality of buffer holes provided in the rotating plate, and a plurality of buffer rods passing through the buffer holes are fixedly arranged on one side of the protective plate. The buffer rods are designed in a T shape, and springs are installed on one side of the buffer rods and the other side of the rotating plate.

[0018] Furthermore, a protective cushion layer is fixedly installed on the surface of the protective plate.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] In the present utility model, through the cooperation of the provided annular frame, rotating plate, protection plate, fixed ring, pressure sensor, extrusion seat, etc., an anti-collision tool structure can be set around the tool of the vertical machining center machine tool, so that when the tool is about to collide with the workpiece, chuck, etc., the protection plate contacts it immediately, preventing the tool from directly contacting the workpiece, chuck, etc., effectively protecting the tool, avoiding problems such as collision damage when the tool moves horizontally, and simultaneously triggering the emergency stop switch to stop the operation of the tool and prevent continuous tool collision, improving the use effect.

[0021] In the present utility model, through the provided rotating plate and swing assembly, the rotating plate can be unfolded and closed under the adjustment of the swing assembly, facilitating the protection of the tool and also facilitating subsequent machine tool operations and tool changing operations. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of an anti-collision tool structure for a vertical machining center machine tool.

[0023] Figure 2 It is a schematic diagram of the annular frame and protection plate structure of an anti-collision tool structure for a vertical machining center machine tool.

[0024] Figure 3 It is a schematic diagram of the tool structure of an anti-collision tool structure for a vertical machining center machine tool.

[0025] Figure 4 It is a schematic diagram of the pressure sensor and missing gear structure of an anti-collision tool structure for a vertical machining center machine tool.

[0026] Figure 5 It is a cross-sectional view of the annular frame of an anti-collision tool structure for a vertical machining center machine tool.

[0027] Figure 6 It is a schematic diagram of the second installation groove and buffer hole structure of an anti-collision tool structure for a vertical machining center machine tool.

[0028] Figure 7 It is a schematic diagram of the rotating plate structure of an anti-collision tool structure for a vertical machining center machine tool.

[0029] Figure 8 It is a schematic diagram of the protection plate structure of an anti-collision tool structure for a vertical machining center machine tool.

[0030] In the figure: 1. Vertical machining center machine tool body; 2. Spindle box; 3. Ring frame; 4. Through hole; 5. Rotating plate; 6. Protective plate; 7. Tool; 8. Fixed ring; 9. First installation groove; 10. Pressure sensor; 11. Buffer rod; 12. Spring; 13. Extrusion seat; 14. Defective gear; 15. Lifting ring; 16. Tooth plate; 17. Forward and reverse motor; 18. Threaded rod; 19. Hanging ear; 20. Guide post; 21. Second installation groove; 22. Buffer hole; 23. Third installation groove. Specific implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 - 8 , in the embodiment of the present invention, an anti-collision tool structure for a vertical machining center machine tool includes:

[0033] Ring frame 3, the ring frame 3 is installed at the bottom of the spindle box 2, the spindle box 2 is installed on the vertical machining center machine tool body 1, the tool 7 is installed on the spindle of the spindle box 2, and the ring frame 3 and the rotating plate 5 wrap the tool 7;

[0034] Fixed ring 8, the fixed ring 8 is fixedly installed on the inner wall of the top of the ring frame 3;

[0035] Rotating plate 5, the bottom of the fixed ring 8 is provided with first installation grooves 9 that are equidistantly distributed in a ring shape, and the rotating plate 5 is rotationally connected to the inside of the first installation grooves 9 through a pin shaft;

[0036] Swing assembly, the swing assembly is arranged at the top of the rotating plate 5 and inside the annular frame 3. The swing assembly includes a lifting ring 15 sleeved on the inner wall of the annular frame 3, and tooth plates 16 are fixedly arranged on the outer wall of the lifting ring 15 at equal intervals in a circular distribution. Third mounting grooves 23 are formed in the top of the rotating plate 5, and incomplete gears 14 are fixedly arranged on the inner walls of the third mounting grooves 23. The incomplete gears 14 are meshed with the tooth plates 16. One side of the inner wall of the top of the annular frame 3 is rotatably connected with a threaded rod 18, and a forward and reverse motor 17 for driving the rotation of the threaded rod 18 is fixedly installed on one side of the inner wall of the bottom of the annular frame 3. The forward and reverse motor 17 is electrically connected with the control equipment of the vertical machining center machine tool body 1. Hanging ears 19 are fixedly arranged on both sides of the outer wall of the lifting ring 15. A threaded groove adapted to the outer wall of the threaded rod 18 is formed in one of the hanging ears 19. Through holes 4 are formed in the bottom of the annular frame 3 at equal intervals in a circular distribution, and the through holes 4 allow the rotating plate 5 to move. The forward and reverse motor 17 in the swing assembly drives the rotation of the threaded rod 18 to adjust the heights of the hanging ears 19, the lifting ring 15 and the tooth plates 16. The rotating plate 5 and the protection plate 6 are driven to rotate through the meshing action between the tooth plates 16 and the incomplete gears 14, facilitating the unfolding and closing of the rotating plate 5 and the protection plate 6;

[0037] Protection plates 6 are arranged on one side of the rotating plate 5 respectively, and a buffer assembly is arranged between the protection plates 6 and the rotating plate 5. Second mounting grooves 21 are formed in one side of the rotating plate 5 respectively, and pressure sensors 10 are fixedly installed on the inner walls of the second mounting grooves 21. Extrusion seats 13 are fixedly arranged on one side of the protection plates 6, and the extrusion seats 13 are in contact with the pressure sensors 10. The pressure sensors 10 are electrically connected with the control equipment of the vertical machining center machine tool body 1 and the emergency stop switch. An anti-collision tool structure can be arranged around the tool 7, so that when the tool 7 is about to collide with the workpiece, the chuck, etc., the protection plate 6 will contact it immediately, preventing the tool 7 from directly contacting the workpiece, the chuck, etc. At this time, the protection plate 6 and the extrusion seat 13 will move under the extrusion force, thereby extruding the pressure sensor 10. The pressure sensor 10 receives the pressure signal and transmits it to the control equipment of the vertical machining center machine tool body 1, thereby triggering the emergency stop switch, causing the tool 7 to stop operating and avoiding the phenomenon of continued tool collision.

[0038] Specifically, a guiding hole is formed in the other hanging ear 19, and a guiding column 20 passing through the guiding hole is fixedly arranged on the inner wall of the annular frame 3, which can ensure the stability of the lifting ring 15 and the tooth plate 16 during movement under the guiding action of the guiding column 20 and the guiding hole.

[0039] Specifically, the buffer assembly includes a plurality of buffer holes 22 formed in the rotating plate 5, and a plurality of buffer rods 11 passing through the buffer holes 22 are fixed to one side of the protection plate 6. The buffer rods 11 are designed in a T shape, and a spring 12 is installed between one side of the buffer rod 11 and the other side of the rotating plate 5. A protective cushion layer is fixed on the surface of the protection plate 6. Through the action of the buffer assembly, the protection plate 6 can be reset after losing the extrusion force, which is convenient for the subsequent anti-collision knife operation.

[0040] The working principle of the present utility model is as follows: When in use, when the tool 7 moves horizontally, the user drives the threaded rod 18 to rotate by using the forward and reverse motor 17 in the swing assembly, raising the height of the hanging ear 19, the lifting ring 15 and the toothed plate 16. Through the meshing action between the toothed plate 16 and the missing gear 14, the rotating plate 5 and the protection plate 6 are driven to rotate, so that the rotating plate 5 and the protection plate 6 are closed around the tool 7. Thus, an anti-collision knife structure is provided around the tool 7, which can contact the protection plate 6 with the workpiece, the chuck, etc. when the tool 7 is about to collide with them for the first time, avoiding the direct contact between the tool 7 and the workpiece, the chuck, etc. At this time, the protection plate 6 and the extrusion seat 13 will move under the extrusion force, thereby squeezing the pressure sensor 10. The pressure sensor 10 receives the pressure signal and transmits it to the control device of the vertical machining center machine body 1, thereby triggering the emergency stop switch, so that the tool 7 stops operating, avoiding the phenomenon of continued tool collision. When machining operations and tool changes are required, the control device drives the swing assembly to move in the reverse direction, so that the rotating plate 5 and the protection plate 6 are unfolded, and the tool 7 can be exposed.

[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms.

Claims

1. A vertical machining center machine tool anti-collision tool structure, characterized in that: include: Ring frame (3); A fixing ring (8), the fixing ring (8) being fixedly mounted on the top inner wall of the annular frame (3); A rotating plate (5), the bottom of the fixing ring (8) is provided with first mounting grooves (9) which are equidistantly distributed in an annular shape, and the rotating plate (5) is rotatably connected to the inside of the first mounting groove (9) via a pin shaft; A swing assembly, the swing assembly being arranged on the top of the rotating plate (5) and inside the annular frame (3); A protective plate (6) is provided on one side of the rotating plate (5), and a buffer assembly is provided between the protective plate (6) and the rotating plate (5); a second mounting groove (21) is provided on one side of the rotating plate (5), and a pressure sensor (10) is fixedly mounted on the inner wall of the second mounting groove (21); an extrusion seat (13) is fixed on one side of the protective plate (6), and the extrusion seat (13) is in contact with the pressure sensor (10).

2. The anti-collision tool structure of a vertical machining center according to claim 1, characterized in that: The annular frame (3) is installed at the bottom of a spindle box (2), the spindle box (2) is installed on a vertical machining center machine tool body (1), a tool (7) is installed on the spindle of the spindle box (2), and the annular frame (3) and the rotating plate (5) are wrapped around the tool (7).

3. The anti-collision tool structure of a vertical machining center according to claim 2, characterized in that: The swing assembly comprises a lifting ring (15) sleeved on the inner wall of the annular frame (3), and the outer wall of the lifting ring (15) is fixed with tooth plates (16) distributed in an annular shape at equal distances, the top of the rotating plate (5) is provided with a third installation groove (23), and the inner wall of the third installation groove (23) is fixed with a missing gear (14), the missing gear (14) is meshed with the tooth plate (16), one side of the top inner wall of the annular frame (3) is rotatably connected with a threaded rod (18), and one side of the bottom inner wall of the annular frame (3) is fixed with a forward and reverse motor (17) for driving the threaded rod (18) to rotate, and both sides of the outer wall of the lifting ring (15) are fixed with hanging ears (19), and one of the hanging ears (19) is provided with a threaded groove matched with the outer wall of the threaded rod (18).

4. The anti-collision tool structure of a vertical machining center according to claim 3, characterized in that: The bottom of the annular frame (3) is provided with openings (4) which are distributed in an annular shape at equal distances, and the openings (4) are used for the movement of the rotating plate (5).

5. The anti-collision tool structure of a vertical machining center according to claim 4, characterized in that: A guide hole is formed on the other hanging ear (19), and a guide post (20) passing through the guide hole is fixed on the inner wall of the annular frame (3).

6. The anti-collision tool structure of a vertical machining center according to claim 1, characterized in that: The buffer assembly comprises a plurality of buffer holes (22) formed on the rotating plate (5), and a plurality of buffer rods (11) passing through the buffer holes (22) are fixed on one side of the protective plate (6), the buffer rods (11) are designed to be T-shaped, and a spring (12) is installed on one side of the buffer rod (11) and the other side of the rotating plate (5).

7. The anti-collision tool structure of a vertical machining center according to claim 6, characterized in that: A protective cushion layer is fixed on the surface of the protective plate (6).

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