Multifunctional workpiece positioning platform of vertical machining center

Abstract

The utility model belongs to the technical field of positioning, particularly relates to a multifunctional workpiece positioning platform of a vertical machining center, and aims to solve the problems that an existing workpiece positioning platform of a traditional vertical machining center is complex in structure, tedious in operation, inconvenient to maintain, poor in cylindrical workpiece clamping effect, single in function and the like. Two first base plates are fixedly installed on the top of the bottom plate and located at the positions close to the two sides of the bottom plate respectively, two second base plates are fixedly installed on the top of the bottom plate, and the two second base plates are both located between the two first base plates. According to the multifunctional workpiece positioning platform of the vertical machining center, the two moving plates are driven by the air cylinder to move, the multifunctional workpiece positioning platform can flexibly adapt to workpieces in different shapes, functionality is high, stable clamping of the workpieces in different shapes is achieved, and the machining efficiency is remarkably improved and the manual operation difficulty and strength are reduced through a rapid clamping and releasing mechanism driven by the air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning, in particular to a multifunctional workpiece positioning platform for a vertical machining center. Background Art

[0002] In modern manufacturing, the demand for high-precision and high-efficiency processing is increasing, especially in the fields of aerospace, automobile manufacturing, mold processing, etc., which puts higher requirements on the accuracy and stability of workpiece positioning and clamping.

[0003] When using the existing vertical machining center, it is necessary to cooperate with the workpiece positioning platform to complete the positioning and clamping of the workpiece;

[0004] In addition, most traditional workpiece positioning platforms can only install plate-shaped workpieces well. While the same positioning platform can install and clamp plate-shaped workpieces well, the positioning and clamping effects on cylindrical workpieces are often not good enough. With the diversification of workpiece shapes and sizes, the same positioning platform is generally only used to clamp workpieces of the same type and in multiple sizes, and cannot be used to clamp more types of workpieces. Its adaptability and flexibility are poor, and its usage functions are not rich enough, resulting in low processing efficiency for different types of workpieces.

[0005] In response to the above problems, this utility model document proposes a multifunctional workpiece positioning platform for a vertical machining center. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the traditional vertical machining center workpiece positioning platform in the prior art, such as complex structure, cumbersome operation, inconvenient maintenance, poor clamping effect for cylindrical workpieces, and single function, and to propose a multifunctional workpiece positioning platform for a vertical machining center.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A multifunctional workpiece positioning platform for a vertical machining center, comprising:

[0009] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

[0010] In one possible design, the base includes a bottom plate, two first pads are fixedly installed on the top of the bottom plate, and the two first pads are respectively located near the two sides of the bottom plate; two second pads are fixedly installed on the top of the bottom plate, and the two second pads are both located between the two first pads and the two second pads are respectively located near the other two sides of the bottom plate; an adjustment groove is formed between the two first pads and the two second pads; two limit bars are fixedly installed on the top of the bottom plate, and the two limit bars are both located in the adjustment groove.

[0011] In a possible design, the limit assembly includes a mounting plate slidably arranged inside one of the first pads, two ends of the mounting plate respectively pass through the two ends of the first pad, a plurality of clamping columns are fixedly installed on one side of the mounting plate, and the plurality of clamping columns all pass through one side of the first pad, and a plurality of first springs are fixedly installed on the other side of the mounting plate, and the other ends of the plurality of first springs are fixedly connected to the inner wall of one side of the first pad, a plurality of clamping grooves are opened on one side of the placement plate, and the plurality of clamping grooves cooperate with corresponding clamping columns to complete the fixation of the placement plate, and the first movable plate and the second movable plate are both provided with a clearance groove on one side close to the plurality of clamping columns, and the two clearance grooves both cooperate with the plurality of clamping columns to provide clearance for the movement of the first movable plate and the second movable plate.

[0012] In a possible design, a first clamping plate is fixedly installed on the top of the first movable plate, and a second clamping plate is fixedly installed on the top of the second movable plate. The first clamping plate and the second clamping plate are respectively located on the side where the first movable plate and the second movable plate are close to each other. The first clamping plate and the second clamping plate are used to complete the clamping of the workpiece. A first rubber pad and a second rubber pad are respectively fixedly installed on the side where the first clamping plate and the second clamping plate are close to each other. The first rubber pad and the second rubber pad are used to increase the friction between the first clamping plate and the second clamping plate and the workpiece.

[0013] In a possible design, the column clamping assembly includes a movable frame slidably arranged on the top of the second movable plate, a fixed block is fixedly installed on the top of the second movable plate, a fixed rod is fixedly installed between the inner walls on both sides of the movable frame, one end of the fixed rod slides through the fixed block, a second clamping groove is provided on the top of the movable frame, a first clamping groove is provided on the top of the second clamping plate, the first clamping groove passes through the second rubber pad, and the first clamping groove cooperates with the second clamping groove to complete the clamping of the cylindrical workpiece.

[0014] In a possible design, the column clamping assembly also includes a movable inclined plane block fixedly mounted on one side of the movable frame, wherein a fixed inclined plane block and a fixed plane block are fixedly mounted on the top of one of the first pads, and the movable inclined plane block cooperates with the fixed inclined plane block and the fixed plane block through an inclined plane, and is used to drive the movable frame to move when the second movable plate moves, and the outer wall of the fixed rod is provided with a second spring, one end of the second spring is fixedly connected to the inner wall of one side of the movable frame, and the other end of the second spring is fixedly connected to one side of the fixed block, and the second spring is used to complete the rebound reset of the movable frame.

[0015] In a possible design, limiting claws are fixedly installed on the top of the movable frame and the second clamping plate, and the two limiting claws cooperate with each other to clamp and limit the cylindrical workpiece.

[0016] In a possible design, a clearance hole is opened inside the first clamping plate, and the clearance hole passes through one side of the first rubber pad. The clearance hole cooperates with the first clamping groove and the second clamping groove to achieve the passage and clearance of the cylindrical workpiece.

[0017] In a possible design, handles are fixedly mounted on both ends of the mounting plate to enable the mounting plate to be pushed and pulled.

[0018] In the present application, when in use, the user can install the workpiece positioning platform under the tool of the vertical machining center; when the user needs to position and install the workpiece, the user can place the workpiece to be processed (whether it is plate-shaped or cylindrical) on the placement plate; for a cylindrical workpiece, the user needs to adjust the position of the workpiece so that one end is placed in the first clamping groove and the second clamping groove, and the other end determines whether it needs to pass through the clearance hole based on the actual length; then the user can start the first cylinder and the second cylinder to move the first movable plate and the second movable plate toward the center respectively to complete the clamping of the workpiece; at this time, the first rubber pad and the second rubber pad on the first clamping plate and the second clamping plate are in contact with the workpiece, which can provide corresponding clamping force and friction force to the workpiece; if the workpiece is cylindrical, the user needs to pay special attention to the clearance hole inside the first clamping plate to ensure that the cylindrical workpiece can pass through smoothly; then as the second movable plate continues to move toward the center, the movable bevel block interacts with the fixed bevel block and the fixed plane block to drive the movable frame to move, and the fixed rod will slide horizontally under the restriction of the fixed block, and at the same time complete the The second spring is compressed; at this time, the second clamping groove is gradually staggered with the first clamping groove, and the corresponding clamping and fixing can be completed according to the diameter of the cylindrical workpiece. When the second clamping groove is staggered and tightened with the first clamping groove, the limiting claw at the top thereof is cooperated to finally complete the tightening and clamping of the cylindrical workpiece, which can ensure the stability of the workpiece during the processing; the user can also pull the mounting plate by the handle to make the clamping column disengage from the clamping groove on one side of the placement plate, so that the position of the placement plate and the workpiece can be adjusted and fixed; during adjustment, the user can push out and retract the placement plate and the workpiece to a certain side by controlling the first cylinder and the second cylinder respectively, so as to ensure the final positioning accuracy of the workpiece before processing; after completing all the above preparations, the user can start the machining center for processing; during the processing, the stable clamping and precise positioning provided by the platform will ensure the processing quality and efficiency; after the processing is completed, the user first turns off the machining center, and then separates the first movable plate and the second movable plate by controlling the cylinder to release the workpiece; if you need to continue processing the next workpiece, repeat the above process.

[0019] Beneficial effects:

[0020] In the utility model, the multifunctional workpiece positioning platform of the vertical machining center can directly clamp the plate-shaped workpiece by using a cylinder to drive two movable plates to move closer, and by providing a cylindrical clamping assembly, the cylindrical workpiece can be clamped and fixed while the cylinder drives the second movable plate to move. The design is flexible and can adapt to workpieces of different shapes and sizes, achieving high-precision positioning and stable clamping of the workpiece, ensuring accuracy and stability during the machining process;

[0021] In the utility model, the multifunctional workpiece positioning platform of the vertical machining center realizes the rapid clamping and releasing of the workpiece by adopting a combination of cylinder drive and limit assembly. At the same time, it is equipped with auxiliary devices such as handles, making the operation more convenient and efficient. The positioning platform integrates cylinders, springs, limit assemblies, etc., reducing the complexity and labor intensity of manual operation.

[0022] In this utility model, the multifunctional workpiece positioning platform of the vertical machining center drives two movable plates to move by an air cylinder, which can flexibly adapt to workpieces of different shapes. It has strong functionality and flexible use, and realizes stable clamping of workpieces of different shapes. Its cylinder-driven rapid clamping and release mechanism significantly improves machining efficiency and reduces the difficulty and intensity of manual operation. The overall design is compact and efficient, ensuring the accuracy and stability of the machining process. It is the preferred equipment for enhancing the competitiveness of modern manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural diagram of a multifunctional workpiece positioning platform for a vertical machining center proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the base plate installation structure of a multifunctional workpiece positioning platform for a vertical machining center proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of a top-view cross-sectional structure of a multifunctional workpiece positioning platform for a vertical machining center proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the placement plate and the moving plate of a multifunctional workpiece positioning platform for a vertical machining center proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of the split structure of the second movable plate of a multifunctional workpiece positioning platform for a vertical machining center proposed by the present invention;

[0028] Figure 6 This is a schematic structural diagram of a cylindrical clamping assembly of a multifunctional workpiece positioning platform for a vertical machining center proposed by the present invention;

[0029] Figure 7 This is a schematic structural diagram of the clamping state of a cylindrical clamping assembly of a multifunctional workpiece positioning platform for a vertical machining center proposed by the utility model.

[0030] In the figure: 1. bottom plate; 2. first pad; 3. second pad; 4. limiting strip; 5. fixed inclined block; 6. fixed plane block; 7. mounting plate; 8. clamping column; 9. first spring; 10. placement plate; 11. first movable plate; 12. second movable plate; 13. clamping slot; 14. clearance slot; 15. first cylinder; 16. second cylinder; 17. first clamping plate; 18. first rubber pad; 19. clearance hole; 20. second clamping plate; 21. second rubber pad; 22. first clamping groove; 23. fixed block; 24. movable frame; 25. second clamping groove; 26. movable inclined block; 27. fixing rod; 28. second spring; 29. ​​limiting claw. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1

[0033] Reference Figure 1-7 A workpiece positioning platform includes: a base plate 1, a first pad 2, a second pad 3, a limit bar 4, a placement plate 10, a first movable plate 11, a second movable plate 12, a cylinder and a clamping assembly. Cylinders with consistent performance are selected and regularly maintained and calibrated to ensure the synchronization and consistency of the cylinders. The air pressure in the cylinder is accurately adjusted through the air pressure control system to achieve precise control of the clamping opening and closing degree.

[0034] First, a first pad 2 is fixedly installed on the top of the base plate 1 and near both sides, and two second pads 3 are fixedly installed on the other two sides of the base plate 1. These four pads together form an adjustment groove; inside the adjustment groove, two limit strips 4 are also fixedly installed on the top of the base plate 1, which are used to guide and limit the sliding of the placement plate 10, the first movable plate 11 and the second movable plate 12 in the horizontal direction.

[0035] Furthermore, in this embodiment, a first cylinder 15 and a second cylinder 16 are fixedly installed on the top of the first pad 2 and the second pad 3, respectively, and their piston rods are fixedly connected to one side of the first movable plate 11 and the second movable plate 12, respectively; when the cylinders are working, the extension and contraction of the piston rods will push the first movable plate 11 and the second movable plate 12 closer to or away from each other in the adjustment groove, thereby achieving clamping and release of the workpiece.

[0036] Further, the clamping structure in the embodiment is optimized; a first clamping plate 17 is fixedly installed on the top of the first moving plate 11, and a second clamping plate 20 is fixedly installed on the top of the second moving plate 12, both of which are located on the side of the respective moving plate close to each other, for clamping and fixing the workpiece located on the placement plate 10.

[0037] In order to limit the position of the placement plate 10, a limiting component is designed in the embodiment; the component includes an installation plate 7 slidingly arranged in one of the first pad plates 2, both ends of the installation plate 7 penetrating the first pad plate 2, one side of which is fixedly installed with a plurality of clamping columns 8, and the other side is fixedly connected with a plurality of first springs 9, and the plurality of clamping columns 8 all penetrate one side of the first pad plate 2; a plurality of clamping grooves 13 are formed on one side of the placement plate 10, corresponding to the clamping columns 8, for fixing the placement plate 10 under the insertion of the clamping columns 8; at the same time, the first moving plate 11 and the second moving plate 12 are provided with a gap slot 14 on the side close to the clamping column 8, so as to ensure that they do not interfere with the clamping column 8 during movement.

[0038] In addition, in order to achieve clamping of the cylindrical workpiece, a cylindrical clamping component is also designed in the embodiment; the component includes a moving frame 24 slidingly arranged on the top of the second moving plate 12, and a fixed rod 27 is fixedly installed between the inner walls of both sides of the moving frame 24, one end of the fixed rod 27 slidingly penetrating a fixed block 23, and the fixed block 23 is fixedly installed on the top of the second moving plate 12; a second clamping groove 25 is formed on the top of the moving frame 24, which cooperates with the first clamping groove 22 on the top of the second clamping plate 20 to jointly complete the clamping of the cylindrical workpiece.

[0039] In order to drive the movement of the moving frame 24, a moving inclined block 26 is fixedly installed on one side of the moving frame 24, and a fixed inclined block 5 and a fixed flat block 6 are fixedly installed on the top of the first pad plate 2 close to the moving inclined block 26; when the second moving plate 12 moves under the driving of the air cylinder, the moving inclined block 26 will contact the fixed inclined block 5, and the moving frame 24 will slide along the fixed rod 27 through the inclined surface effect, realizing the clamping or releasing of the cylindrical workpiece; the outer wall of the fixed rod 27 is sleeved with a second spring 28, one end of which is fixedly connected with the moving frame 24, and the other end is fixedly connected with the fixed block 23, for automatically returning the moving frame 24 to the original position after the second moving plate 12 returns to the original position.

[0040] In order to improve the stability of the cylindrical workpiece during clamping, a limiting claw 29 is fixedly installed on the top of the moving frame 24 and the second clamping plate 20 in the embodiment, and the two cooperate with each other to further clamp and limit the cylindrical workpiece.

[0041] The present application can be used in the field of numerical control machining, and can also be used in other fields applicable to the present application.

[0042] Embodiment 2

[0043] refer to Figure 3 、 4 , improved on the basis of Example 1: a multifunctional workpiece positioning platform for a vertical machining center, which is applied to the field of CNC machining technology;

[0044] Furthermore, in this embodiment, in order to increase the friction force during clamping, a first rubber pad 18 and a second rubber pad 21 are fixedly mounted on the inner sides of the first clamping plate 17 and the second clamping plate 20, respectively. The two cooperate with each other to ensure a more stable clamping of the workpiece.

[0045] Furthermore, in this embodiment, a clearance hole 19 is specially opened inside the first clamping plate 17. The clearance hole 19 not only passes through the first clamping plate 17 itself, but also passes through one side of the first rubber pad 18 located inside thereof; such a design enables the clearance hole 19 to cooperate with the first clamping groove 22 and the second clamping groove 25 to form a channel together for realizing the smooth passage and clearance of the cylindrical workpiece during the clamping process.

[0046] In this embodiment, handles are fixedly installed at both ends of the mounting plate 7. During actual use, when the position of the placement plate 10 needs to be adjusted, the operator can grasp the handle to complete the push-pull movement of the mounting plate 7. In this way, the clamping column 8 on one side of the mounting plate 7 will move accordingly, thereby locking or releasing the placement plate 10, and the position of the placement plate 10 and the workpiece can be further adjusted. The operation is simple and convenient for users to use.

[0047] However, as is well known to those skilled in the art, the working principles and wiring methods of the first cylinder 15 and the second cylinder 16 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0048] The working principle and usage process of this technical solution are as follows: when in use, the user can install the workpiece positioning platform under the tool of the vertical machining center; when the user needs to position and install the workpiece, the user can place the workpiece to be processed (whether it is plate-shaped or cylindrical) on the placement plate 10; for a cylindrical workpiece, the user needs to adjust the position of the workpiece so that one end is placed in the first clamping groove 22 and the second clamping groove 25, and the other end determines whether it needs to pass through the clearance hole 19 based on the actual length;

[0049] The user can then activate the first cylinder 15 and the second cylinder 16 to move the first movable plate 11 and the second movable plate 12 toward the center, respectively, to complete the clamping of the workpiece. At this time, the first rubber pad 18 and the second rubber pad 21 on the first clamping plate 17 and the second clamping plate 20 come into contact with the workpiece, providing corresponding clamping force and friction force to the workpiece.

[0050] If the workpiece is cylindrical, the user needs to pay special attention to the clearance hole 19 inside the first clamping plate 17 to ensure that the cylindrical workpiece can pass through smoothly; then, as the second movable plate 12 continues to move toward the center, the movable inclined block 26 interacts with the fixed inclined block 5 and the fixed plane block 6 to drive the movable frame 24 to move, and the fixed rod 27 will slide horizontally under the restriction of the fixed block 23, while completing the compression of the second spring 28; at this time, the second clamping groove 25 and the first clamping groove 22 are gradually staggered, and the corresponding clamping and fixing can be completed according to the diameter of the cylindrical workpiece. When the second clamping groove 25 and the first clamping groove 22 are staggered and tightened, the limiting claw 29 at the top thereof is cooperated to finally complete the tightening and clamping of the cylindrical workpiece, which can ensure the stability of the workpiece during the processing;

[0051] The user can also pull the mounting plate 7 by the handle to disengage the clamping column 8 from the clamping slot 13 on one side of the placement plate 10, thereby adjusting and fixing the placement plate 10 and the workpiece. During adjustment, the user can control the first cylinder 15 and the second cylinder 16 to push out and retract them accordingly, so that the placement plate 10 and the workpiece can be offset to one side, thereby ensuring the final positioning accuracy of the workpiece before processing.

[0052] After completing all the above preparations, the user can start the machining center for processing operations; during the processing, the stable clamping and precise positioning provided by the platform will ensure the processing quality and efficiency; after the processing is completed, the user first turns off the machining center, and then controls the cylinder to separate the first movable plate 11 and the second movable plate 12 to release the workpiece; if you need to continue processing the next workpiece, repeat the above process.

[0053] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional workpiece positioning platform for a vertical machining center, characterized in that: include: The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

2. The multifunctional workpiece positioning platform for a vertical machining center according to claim 1, characterized in that: The base includes a bottom plate, two first pads are fixedly installed on the top of the bottom plate, and the two first pads are respectively located near the two sides of the bottom plate; two second pads are fixedly installed on the top of the bottom plate, and the two second pads are both located between the two first pads and the two second pads are respectively located near the other two sides of the bottom plate; an adjustment groove is formed between the two first pads and the two second pads; two limit bars are fixedly installed on the top of the bottom plate, and the two limit bars are both located in the adjustment groove.

3. The multifunctional workpiece positioning platform for a vertical machining center according to claim 1, characterized in that: The limiting assembly includes a mounting plate (7) slidably arranged inside one of the first pads (2), two ends of the mounting plate (7) respectively pass through the two ends of the first pad (2), a plurality of clamping columns (8) are fixedly installed on one side of the mounting plate (7), and the plurality of clamping columns (8) all pass through one side of the first pad (2), a plurality of first springs (9) are fixedly installed on the other side of the mounting plate (7), and the other ends of the plurality of first springs (9) are fixedly connected to the inner wall of one side of the first pad (2), a plurality of clamping grooves (13) are provided on one side of the placement plate (10), and the plurality of clamping grooves (13) cooperate with the corresponding clamping columns (8) to complete the fixation of the placement plate (10), and the first movable plate (11) and the second movable plate (12) are both provided with a clearance groove (14) on one side close to the plurality of clamping columns (8), and the two clearance grooves (14) both cooperate with the plurality of clamping columns (8) to provide clearance for the movement of the first movable plate (11) and the second movable plate (12).

4. The multifunctional workpiece positioning platform for a vertical machining center according to claim 3, characterized in that: A first clamping plate (17) is fixedly mounted on the top of the first movable plate (11), and a second clamping plate (20) is fixedly mounted on the top of the second movable plate (12). The first clamping plate (17) and the second clamping plate (20) are respectively located on the side where the first movable plate (11) and the second movable plate (12) are close to each other. The first clamping plate (17) and the second clamping plate (20) are used to complete the clamping of the workpiece. A first rubber pad (18) and a second rubber pad (21) are respectively fixedly mounted on the side where the first clamping plate (17) and the second clamping plate (20) are close to each other. The first rubber pad (18) and the second rubber pad (21) are used to increase the friction force between the first clamping plate (17) and the second clamping plate (20) and the workpiece.

5. The multifunctional workpiece positioning platform for a vertical machining center according to claim 4, characterized in that: The column clamping assembly includes a movable frame (24) slidably arranged on the top of the second movable plate (12), a fixed block (23) is fixedly installed on the top of the second movable plate (12), a fixed rod (27) is fixedly installed between the inner walls of both sides of the movable frame (24), one end of the fixed rod (27) slides through the fixed block (23), a second clamping groove (25) is provided on the top of the movable frame (24), a first clamping groove (22) is provided on the top of the second clamping plate (20), the first clamping groove (22) penetrates the second rubber pad (21), and the first clamping groove (22) cooperates with the second clamping groove (25) to complete the clamping of the cylindrical workpiece.

6. The multifunctional workpiece positioning platform for a vertical machining center according to claim 5, characterized in that: The column clamping assembly also includes a moving inclined plane block (26) fixedly mounted on one side of the moving frame (24), wherein a fixed inclined plane block (5) and a fixed plane block (6) are fixedly mounted on the top of one of the first pads (2), and the moving inclined plane block (26) cooperates with the fixed inclined plane block (5) and the fixed plane block (6) through an inclined plane, and is used to drive the moving frame (24) to move when the second moving plate (12) moves. The outer wall of the fixed rod (27) is provided with a second spring (28), one end of the second spring (28) is fixedly connected to the inner wall of one side of the moving frame (24), and the other end of the second spring (28) is fixedly connected to one side of the fixed block (23), and the second spring (28) is used to complete the rebound reset of the moving frame (24).

7. The multifunctional workpiece positioning platform for a vertical machining center according to claim 6, characterized in that: Limiting claws (29) are fixedly mounted on the tops of the movable frame (24) and the second clamping plate (20), and the two limiting claws (29) cooperate with each other to clamp and limit the cylindrical workpiece.

8. The multifunctional workpiece positioning platform for a vertical machining center according to claim 7, characterized in that: A clearance through hole (19) is provided inside the first clamping plate (17), and the clearance through hole (19) passes through one side of the first rubber pad (18). The clearance through hole (19) cooperates with the first clamping groove (22) and the second clamping groove (25) to achieve the passage and clearance of the cylindrical workpiece.

9. The multifunctional workpiece positioning platform for a vertical machining center according to claim 3, characterized in that: Both ends of the mounting plate (7) are fixedly mounted with handles for completing the pushing and pulling of the mounting plate (7).

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