A CNC machining center that is easy to quickly clamp

Abstract

The utility model discloses a CNC machining center that is convenient for quick clamping, and relates to the technical field of CNC machining. The CNC machining center that is convenient for quick clamping comprises a workbench, the overall arrangement of the workbench is U-shaped, a cavity is provided inside the workbench, a displacement plate is slidably connected inside the cavity in the workbench, a lifting cylinder is provided on the bottom wall of the cavity in the workbench, the output end of the lifting cylinder is fixedly connected to the lower surface of the displacement plate, a threaded rod is rotatably connected to the upper surface of the displacement plate, a supporting plate is provided on the upper surface of the workbench, a threaded sleeve is provided on the outer surface of the threaded rod, the upper end of the threaded sleeve slides through the upper surface of the workbench and is rotatably connected to the lower surface of the supporting plate, so that when unloading the workpiece, one side of the supporting plate can be controlled to descend by the threaded sleeve, and then the workpiece slides in cooperation with gravity, so that the workpiece automatically detaches from the supporting plate, and the work intensity of the staff is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a numerical control machining center which is convenient for rapid clamping. Background Art

[0002] The CNC machining center is one of the most productive and widely used CNC machine tools in the world. It has strong comprehensive processing capabilities, can complete more processing content after the workpiece is clamped once, and has high processing accuracy. For batch workpieces with medium processing difficulty, its efficiency is 5 to 10 times that of ordinary equipment. In particular, it can complete many processing that ordinary equipment cannot complete, and is more suitable for single-piece processing with complex shapes and high precision requirements or small and medium-batch multi-variety production.

[0003] For example, the Chinese utility model patent with patent publication number CN217966005U includes a workbench, a loading plate is arranged on the upper left side of the workbench, a positioning pillar is arranged in the middle of the right side of the loading plate, a positioning clamping plate is arranged at the other end of the positioning pillar, a positioning cylinder is arranged on the upper right side of the workbench, a moving clamping plate is arranged at the driving end of the positioning cylinder, and a material moving assembly is arranged on the left side of the cavity of the workbench.

[0004] Although this patent can realize the existing CNC machining center through the positioning clamping plate, positioning cylinder, movable clamping plate and material transfer assembly set up in the CNC machining center for easy quick clamping, it is not convenient to clamp the workpiece quickly, does not have the function of automatically clamping the workpiece, and the clamping speed is slow, which seriously affects the production efficiency. Secondly, it effectively improves and solves the problem of unsatisfactory unloading effect of the processed workpiece. However, when the workpiece is unloaded after processing, the position of the workpiece is supported by the support plate to change the unloading and receiving of the workpiece. After the workpiece is placed on the support plate, the staff needs to complete the unloading of the workpiece, resulting in a slight lack of efficiency in the overall unloading process. There is still room for improvement. In view of this, we propose a CNC machining center that is easy to clamp quickly. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a CNC machining center that is convenient for quick clamping and can solve the problem of requiring manual intervention during unloading.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC machining center that is easy to clamp quickly, comprising a workbench, the workbench is overall arranged in a U-shape, a cavity is opened inside the workbench, a displacement plate is slidably connected inside the cavity in the workbench, a lifting cylinder is arranged on the bottom wall of the cavity in the workbench, the output end of the lifting cylinder is fixedly connected to the lower surface of the displacement plate, a threaded rod is rotatably connected to the upper surface of the displacement plate, a supporting plate is arranged on the upper surface of the workbench, a threaded sleeve is threadedly sleeved on the outer surface of the threaded rod, the upper end of the threaded sleeve slides through the upper surface of the workbench and is rotatably connected to the lower surface of the supporting plate, a sliding groove is opened on the upper surface of the displacement plate, a support column is slidably connected inside the sliding groove, a moving groove is opened on the upper surface of the workbench that extends into the cavity inside the workbench, the support column extends out of the upper surface of the workbench through the moving groove and is rotatably connected to the lower surface of the supporting plate, a trigger assembly is arranged on the outer surface of the threaded rod, and a clamping assembly is arranged on the workbench.

[0007] Preferably, the trigger assembly includes a gear, which is sleeved on the outer surface of the threaded rod, and the upper surface of the displacement plate is provided with a second movement groove extending to the lower surface, and the left side of the second movement groove extends out of the left side surface of the displacement plate, and the bottom wall of the cavity in the workbench is fixedly connected with a tooth plate, and the upper side surface of the tooth plate extends to the upper surface of the displacement plate through the second movement groove, and the front side surface of the tooth plate is meshed with the gear, and the left inner wall of the cavity in the workbench is provided with a displacement groove, and the left side surface of the tooth plate is fixedly connected with the second displacement plate.

[0008] Preferably, the front and rear side surfaces of the second displacement plate are respectively fixedly connected with mounting plates, the inner wall of the displacement groove is fixedly connected with a limiting rod, and the right end of the limiting rod slides through the right side surface of the mounting plate.

[0009] Preferably, a spring is fixedly connected between the left side surface of the mounting plate and the inner wall of the displacement groove, and a limiting groove is provided on the left inner wall of the cavity in the workbench, and the limiting groove is communicated with the interior of the displacement groove.

[0010] Preferably, a displacement rod is slidably connected inside the limiting groove, the lower end of the displacement rod is fixedly connected to the upper surface of the second displacement plate, and the right side surface of the displacement rod is fixedly connected to a push rod.

[0011] Preferably, a limiting groove extends from the right end of the push rod, and a push plate is fixedly connected to the right end of the push rod.

[0012] Preferably, the clamping assembly includes two positioning cylinders, which are respectively fixedly connected to the upper surfaces of the two vertical plates of the workbench, and displacement clamps are respectively provided on the adjacent side surfaces of the two positioning cylinders, and the left side surface of the left displacement clamp is in contact with the push plate.

[0013] Preferably, the front surface of the workbench is fixedly connected to a collection box, the upper surface of the collection box is arranged to be inclined, the inner wall of the collection box is rotatably connected to a buffer plate, the lower surface of the buffer plate is fixedly connected to a second spring, and the lower end of the second spring is fixedly connected to the inclined surface of the collection box.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The CNC machining center, which is easy to clamp quickly, can drive the displacement plate to move up and down as a whole by lifting the cylinder during normal operation. When the displacement plate moves, the support plate is pushed up and down by the support column and the threaded sleeve. When the workpiece is processed and needs to be unloaded, the clamping assembly can be reset to cooperate with the trigger assembly to drive the threaded rod to rotate. Since the threaded sleeve is restricted in its movement trajectory and cannot rotate, when the threaded rod rotates, it will simultaneously drive the threaded sleeve to move in the vertical direction, thereby driving the front side of the support plate to descend and complete the tilting. At the same time, when the front side of the support plate descends, it will simultaneously pull the support column to move horizontally. When the support column moves, the movement trajectory is limited by the sliding groove. Through the above structure, when the workpiece is unloaded, one side of the support plate can be controlled to descend by the threaded sleeve, and then the workpiece slides with the help of gravity, so that the workpiece automatically detaches from the support plate, reducing the workload of the staff.

[0016] (2) The CNC machining center is easy to clamp quickly. When the workpiece slides, it will fall on the top of the buffer plate. After the buffer plate is subjected to force, it rotates around the connection point, thereby compressing the second spring. The second spring is subjected to force and contracts to absorb the impact force to a certain extent. At this time, the buffer plate is tilted as a whole, so that the workpiece slides into the collection box. Then, its positioning cylinder pushes the displacement clamp to reset, and simultaneously drives the support plate to return to a horizontal state. Through the above structure, unloading can be more convenient, and no additional drive is required. The overall structure is relatively simple. At the same time, the buffer plate can also be used to prevent the workpiece from being damaged by impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of a CNC machining center that is convenient for quick clamping according to the utility model;

[0019] Figure 2 This is a cross-sectional view of the working table of the utility model;

[0020] Figure 3 This is a schematic diagram of the displacement plate of the utility model;

[0021] Figure 4 This is a schematic diagram of the second spring of the utility model;

[0022] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0023] Figure numerals: 1. workbench; 2. displacement plate; 3. spring; 4. threaded rod; 5. supporting plate; 6. threaded sleeve; 7. sliding groove; 8. supporting column; 9. gear; 10. second spring; 11. second movement groove; 12. tooth plate; 13. displacement groove; 14. second displacement plate; 15. mounting plate; 16. limiting rod; 17. limiting groove; 18. displacement rod; 19. push rod; 20. push plate; 21. positioning cylinder; 22. displacement splint; 23. collection box; 24. buffer plate. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] See also Figure 1-5The utility model provides a technical solution: a CNC machining center that is easy to clamp quickly, including a workbench 1, the workbench 1 is arranged in a U-shape as a whole, a cavity is opened inside the workbench 1, a displacement plate 2 is slidably connected inside the cavity in the workbench 1, a lifting cylinder is arranged on the bottom wall of the cavity in the workbench 1, the output end of the lifting cylinder is fixedly connected to the lower surface of the displacement plate 2, a threaded rod 4 is rotatably connected to the upper surface of the displacement plate 2, a supporting plate 5 is arranged on the upper surface of the workbench 1, a threaded sleeve 6 is threadedly sleeved on the outer surface of the threaded rod 4, the upper end of the threaded sleeve 6 slides through the upper surface of the workbench 1 and is rotatably connected to the lower surface of the supporting plate 5, a sliding groove 7 is opened on the upper surface of the displacement plate 2, a support column 8 is slidably connected inside the sliding groove 7, a moving groove extending into the inner cavity of the workbench 1 is opened on the upper surface of the workbench 1, the support column 8 extends out of the upper surface of the workbench 1 through the moving groove and is rotatably connected to the lower surface of the supporting plate 5, and a trigger component is arranged on the outer surface of the threaded rod 4. The workbench 1 is provided with a clamping assembly, which can drive the displacement plate 2 to move up and down as a whole by lifting the cylinder during normal operation. When the displacement plate 2 moves, the support column 8 and the threaded sleeve 6 are used to push the supporting plate 5 to move up and down. When the workpiece is processed and needs to be unloaded, the clamping assembly can be reset to cooperate with the trigger assembly to drive the threaded rod 4 to rotate. Since the threaded sleeve 6 is restricted in its movement trajectory and cannot rotate, when the threaded rod 4 rotates, it will simultaneously drive the threaded sleeve 6 to move in the vertical direction, thereby driving the front side of the supporting plate 5 to descend and complete the tilting. At the same time, when the front side of the supporting plate 5 descends, it will simultaneously pull the support column 8 to move horizontally. When the support column 8 moves, the movement trajectory is limited by the sliding groove 7. Through the above structure, when the workpiece is unloaded, the threaded sleeve 6 can be used to control one side of the supporting plate 5 to descend, and then the gravity can be used to make the workpiece slide, so that the workpiece automatically detaches from the supporting plate 5, reducing the work intensity of the staff.

[0026] Furthermore, the trigger assembly includes a gear 9, which is sleeved on the outer surface of the threaded rod 4. The upper surface of the displacement plate 2 is provided with a second movement groove 11 extending to the lower surface, and the left side of the second movement groove 11 extends out of the left side surface of the displacement plate 2. The bottom wall of the cavity in the workbench 1 is fixedly connected with a toothed plate 12, and the upper side surface of the toothed plate 12 extends to the upper surface of the displacement plate 2 through the second movement groove 11. The front side surface of the toothed plate 12 is meshed and connected with the gear 9. The left inner wall of the cavity in the workbench 1 is provided with a displacement groove 13, and the left side surface of the toothed plate 12 is fixedly connected with a second displacement plate 14, and the front and rear side surfaces of the second displacement plate 14 are respectively fixedly connected with mounting plates 15. The inner wall of the displacement groove 13 is fixedly connected with a limiting rod 16, and the right end of the limiting rod 16 slides through The right side surface of the mounting plate 15 is penetrated, and a spring 3 is fixedly connected between the left side surface of the mounting plate 15 and the inner wall of the displacement groove 13. A limiting groove 17 is provided on the left inner wall of the cavity in the workbench 1. The limiting groove 17 is communicated with the inside of the displacement groove 13. A displacement rod 18 is slidably connected inside the limiting groove 17. The lower end of the displacement rod 18 is fixedly connected to the upper surface of the second displacement plate 14. A push rod 19 is fixedly connected to the right side surface of the displacement rod 18. The right end of the push rod 19 extends out of the limiting groove 17. The right end of the push rod 19 is fixedly connected to a push plate 20. The clamping assembly includes two positioning cylinders 21. The two positioning cylinders 21 are respectively fixedly connected to the upper surfaces of the two vertical plates of the workbench 1. The side surfaces close to the two positioning cylinders 21 are respectively provided with displacement clamps 22 The left side surface of the left displacement clamping plate 22 contacts the push plate 20, and the front side surface of the workbench 1 is fixedly connected with a collection box 23. The upper surface of the collection box 23 is set to be inclined. The inner wall of the collection box 23 is rotatably connected with a buffer plate 24. The lower surface of the buffer plate 24 is fixedly connected with a second spring 10. The lower end of the second spring 10 is fixedly connected to the inclined surface of the collection box 23. The displacement clamping plate 22 described in the text is in contact with the push plate 20 in the initial state. The upper surface material of the buffer plate 24 is set to rubber. At the same time, the overall elastic force of the second spring 10 cannot be too strong to avoid the workpiece from bouncing up after compression. After the adjustment of the supporting plate 5 is completed, the positioning cylinder 21 is used to cooperate with the displacement clamping plate 22 to clamp the workpiece. When unloading, the positioning cylinder 21 pulls the displacement clamping plate 22 to move, and uses The displacement clamping plate 22 synchronously pushes the push plate 20 to move. After the push plate 20 moves, it cooperates with the push rod 19 to drive the displacement rod 18 to move. When the displacement rod 18 moves, it will synchronously drive the second displacement plate 14 to move. The second displacement plate 14 uses two mounting plates 15 to compress the spring 3, and uses the second displacement plate 14 to drive the tooth plate 12 to move. When the tooth plate 12 moves, it synchronously drives the gear 9 to rotate. When the workpiece slides, it will fall on the top of the buffer plate 24. After the buffer plate 24 is subjected to force, it rotates around the connection point, thereby compressing the second spring 10. The second spring 10 is subjected to force and contracts to absorb the impact force to a certain extent. At this time, the buffer plate 24 is tilted as a whole, so that the workpiece slides into the interior of the collection box 23, and then its positioning cylinder 21 pushes the displacement clamping plate 22 to reset.And synchronously drive the supporting plate 5 to return to a horizontal state. Through the above structure, it can be more convenient to unload materials without the need for additional drive. The overall structure is relatively simple. At the same time, the buffer plate 24 can also be used to prevent the workpiece from being damaged by impact.

[0027] Working principle: During normal operation, the displacement plate 2 can be driven to move up and down as a whole by lifting the cylinder. When the displacement plate 2 moves, the support column 8 and the threaded sleeve 6 are used to push the support plate 5 to move up and down. When the workpiece is processed and needs to be unloaded, the clamping assembly can be reset to cooperate with the trigger assembly to drive the threaded rod 4 to rotate. Since the threaded sleeve 6 is restricted in its movement trajectory and cannot rotate, when the threaded rod 4 rotates, it will simultaneously drive the threaded sleeve 6 to move in the vertical direction, thereby driving the front side of the support plate 5 to descend and complete the tilting. At the same time, when the front side of the support plate 5 descends, it will simultaneously pull the support column 8 to move horizontally. When the support column 8 moves, the movement trajectory is limited by the sliding groove 7. After the adjustment of the support plate 5 is completed, the positioning cylinder 21 is used to cooperate with the displacement clamp 22 to clamp the workpiece. When unloading, the positioning cylinder 21 Pull the displacement splint 22 to move, and use the displacement splint 22 to synchronously push the push plate 20 to move. After the push plate 20 moves, it synchronously cooperates with the push rod 19 to drive the displacement rod 18 to move. When the displacement rod 18 moves, it will synchronously drive the second displacement plate 14 to move. The second displacement plate 14 uses two mounting plates 15 to compress the spring 3, and uses the second displacement plate 14 to drive the tooth plate 12 to move. When the tooth plate 12 moves, it synchronously drives the gear 9 to rotate. When the workpiece slides, it will fall on the top of the buffer plate 24. After the buffer plate 24 is subjected to force, it rotates around the connection point, thereby compressing the second spring 10. The second spring 10 is subjected to force to produce contraction to absorb the impact force to a certain extent. At this time, the buffer plate 24 is tilted as a whole, so that the workpiece slides into the interior of the collection box 23. Then its positioning cylinder 21 pushes the displacement splint 22 to reset, and synchronously drives the supporting plate 5 to return to a horizontal state.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A CNC machining center that facilitates rapid clamping, comprising a workbench (1), characterized in that: The workbench (1) is configured as a U-shape as a whole. A cavity is provided inside the workbench (1). A displacement plate (2) is slidably connected to the cavity inside the workbench (1). A lifting cylinder is provided on the bottom wall of the cavity inside the workbench (1). The output end of the lifting cylinder is fixedly connected to the lower surface of the displacement plate (2). A threaded rod (4) is rotatably connected to the upper surface of the displacement plate (2). A supporting plate (5) is provided on the upper surface of the workbench (1). A threaded sleeve (6) is threadedly sleeved on the outer surface of the threaded rod (4). The upper end of the threaded sleeve (6) slides The upper surface of the workbench (1) is penetrated and is rotatably connected to the lower surface of the supporting plate (5). The upper surface of the displacement plate (2) is provided with a sliding groove (7). The interior of the sliding groove (7) is slidably connected to a support column (8). The upper surface of the workbench (1) is provided with a motion groove extending into the interior of the cavity of the workbench (1). The support column (8) extends out of the upper surface of the workbench (1) through the motion groove and is rotatably connected to the lower surface of the supporting plate (5). A trigger component is provided on the outer surface of the threaded rod (4). A clamping component is provided on the workbench (1).

2. A CNC machining center that facilitates rapid clamping according to claim 1, characterized in that: The trigger assembly comprises a gear (9), which is sleeved on the outer surface of the threaded rod (4); a second movement groove (11) extending to the lower surface is provided on the upper surface of the displacement plate (2); the left side of the second movement groove (11) extends out of the left side surface of the displacement plate (2); a tooth plate (12) is fixedly connected to the bottom wall of the inner cavity of the workbench (1); the upper side surface of the tooth plate (12) extends to the upper surface of the displacement plate (2) through the second movement groove (11); the front side surface of the tooth plate (12) is meshed with the gear (9); a displacement groove (13) is provided on the left inner wall of the inner cavity of the workbench (1); and the second displacement plate (14) is fixedly connected to the left side surface of the tooth plate (12).

3. A CNC machining center that facilitates rapid clamping according to claim 2, characterized in that: The front and rear side surfaces of the second displacement plate (14) are respectively fixedly connected to mounting plates (15), the inner wall of the displacement groove (13) is fixedly connected to a limiting rod (16), and the right end of the limiting rod (16) slides through the right side surface of the mounting plate (15).

4. A CNC machining center that facilitates rapid clamping according to claim 3, characterized in that: A spring (3) is fixedly connected between the left surface of the mounting plate (15) and the inner wall of the displacement groove (13); a limit groove (17) is provided on the left inner wall of the cavity in the workbench (1); and the limit groove (17) is communicated with the interior of the displacement groove (13).

5. A CNC machining center that facilitates rapid clamping according to claim 4, characterized in that: A displacement rod (18) is slidably connected inside the limiting groove (17), the lower end of the displacement rod (18) is fixedly connected to the upper surface of the second displacement plate (14), and a push rod (19) is fixedly connected to the right side surface of the displacement rod (18).

6. A CNC machining center that facilitates rapid clamping according to claim 5, characterized in that: A limiting groove (17) extends from the right end of the push rod (19), and a push plate (20) is fixedly connected to the right end of the push rod (19).

7. A CNC machining center that facilitates rapid clamping according to claim 1, characterized in that: The clamping assembly comprises two positioning cylinders (21), the two positioning cylinders (21) are respectively fixedly connected to the upper surfaces of two vertical plates of the workbench (1), and displacement clamps (22) are respectively provided on the adjacent side surfaces of the two positioning cylinders (21), and the left side surface of the left displacement clamp (22) is in contact with the push plate (20).

8. The CNC machining center that facilitates rapid clamping according to claim 1, characterized in that: The front side surface of the workbench (1) is fixedly connected to a collection box (23), the upper surface of the collection box (23) is arranged in an inclined shape, the inner wall of the collection box (23) is rotatably connected to a buffer plate (24), the lower surface of the buffer plate (24) is fixedly connected to a second spring (10), and the lower end of the second spring (10) is fixedly connected to the inclined surface of the collection box (23).

Images