Workpiece clamping mechanism of vertical machining center

Abstract

The utility model discloses a workpiece clamping mechanism of a vertical machining center, which comprises a translation sliding component, a mounting table, a vertical sliding component, a clamping table and a clamping component, machining center equipment is arranged at one end of the translation sliding component, and the mounting table is slidably connected onto the translation sliding component. A vertical sliding assembly is fixedly connected to the upper end of the mounting table, a clamping table is slidably connected to one side of the vertical sliding assembly, and a clamping assembly is arranged on one side of the clamping table. The workpiece clamping mechanism is convenient to operate, good in clamping stability and high in adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a workpiece clamping mechanism for a vertical machining center. Background Art

[0002] With the rapid development of modern manufacturing, CNC machine tools, particularly vertical machining centers (VMCs), have gained widespread application in the machining field. Due to their efficient, precise, and versatile capabilities, VMCs have become essential equipment for machining complex parts. However, in actual machining, workpiece clamping stability and efficiency directly impact machining quality and production efficiency. Therefore, designing an efficient, stable, and convenient workpiece clamping mechanism has become a key technology for improving the overall performance of VMCs.

[0003] Traditional workpiece clamping mechanisms have several shortcomings. First, they require manual adjustment when clamping the workpiece, which is cumbersome and time-consuming. In mass production, this approach significantly reduces production efficiency. Second, due to the limited precision of manual adjustment, the workpiece is prone to positional errors during the clamping process, which affects machining accuracy. Furthermore, the uneven distribution of clamping force in traditional clamping mechanisms can easily cause workpiece deformation, a particularly prominent problem when machining thin-walled or complex-shaped workpieces.

[0004] To overcome these shortcomings, several improvements have been proposed in the prior art. For example, pneumatic or hydraulic devices have been used to achieve automatic clamping, improving clamping efficiency and stability. However, these improvements are often complex, costly, and difficult to maintain, limiting their widespread adoption in small and medium-sized enterprises.

[0005] Therefore, there is an urgent need for a clamping mechanism with a simple structure, convenient operation, stable clamping, and the ability to effectively prevent workpiece deformation, in order to meet the modern manufacturing industry's demand for efficient and high-precision machining. Based on this background, this utility model proposes a workpiece clamping mechanism for a vertical machining center, aiming to provide a solution that can efficiently and stably clamp workpieces, thereby improving the overall performance and production efficiency of the machining center. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention aims to provide a workpiece clamping mechanism which is easy to operate, has good clamping stability and strong adaptability.

[0007] The utility model discloses a technical scheme that is adopted for realizing the above-mentioned purpose is: a workpiece clamping mechanism of vertical machining center, including translation sliding assembly, installation platform, vertical sliding assembly, clamping platform, clamping assembly, one end of translation sliding assembly is provided with machining center equipment, machining center equipment is used for workpiece processing, translation sliding assembly can drive clamping mechanism to be close to or far from machining center equipment, wherein far from operation is for the pick-and-place operation of workpiece, and close to machining center equipment is for workpiece processing, the installation platform is slidably connected on translation sliding assembly, the vertical sliding assembly is fixedly connected to the installation platform upper end, and the vertical sliding assembly is used for adjusting the clamping height of workpiece, and convenient machining center equipment better processing operation, one side of vertical sliding assembly is slidably connected with clamping platform, one side of clamping platform is provided with clamping assembly, and clamping assembly is responsible for actual workpiece clamping work.

[0008] In one embodiment, the translation sliding assembly includes a translation sliding frame, a translation drive screw, a translation sliding rail, and a translation motor. The installation platform is slidably connected in the translation sliding frame. Two sets of opposite parallel translation sliding rails are fixedly connected in the translation sliding frame. A sliding groove is formed in the lower end of the installation platform. The translation sliding rails are slidably connected in the sliding groove. A translation drive screw penetrates the middle of the installation platform and is threadedly connected thereto. The translation drive screw is rotatably connected in the translation sliding frame. One end of the translation drive screw is connected to the translation motor after penetrating out of the translation sliding frame.

[0009] In one embodiment, the vertical sliding assembly includes a vertical sliding frame, a vertical drive screw, a vertical sliding rail, a vertical sliding block, and a vertical motor. The vertical sliding frame is fixedly connected to the upper end of the installation platform. Two sets of opposite parallel vertical sliding rails are fixedly connected in the vertical sliding frame. A plurality of vertical sliding blocks are slidably connected on the vertical sliding rails. The vertical sliding blocks are fixedly connected to one side of the clamping platform. A displacement block is fixedly connected to the clamping platform on the same side. A vertical drive screw penetrates the displacement block and is threadedly connected thereto. The vertical drive screw is rotatably connected in the vertical sliding frame. One end of the vertical drive screw is connected to the vertical motor after penetrating out of the top of the vertical sliding frame. The vertical motor is fixedly connected to the top end of the vertical sliding frame.

[0010] In one embodiment, the clamping assembly includes a sliding guide block, a driving block, a driving plate, a bidirectional screw rod, a driving motor, a clamping plate, and a chuck. One side of the clamping table is slidingly connected with two groups of symmetric driving plates. The driving plates are fixedly connected with two groups of sliding guide blocks. The opposite side of the clamping table is provided with sliding guide grooves. The sliding guide blocks are slidingly connected in the sliding guide grooves. The driving plates between the sliding guide blocks are fixedly connected with driving blocks. The opposite side of the clamping table is provided with driving grooves. The driving blocks are slidingly connected in the driving grooves. The driving grooves are rotatably connected with bidirectional screw rods. The two segments of the screw threads of the bidirectional screw rods are threadedly connected with the driving blocks. One end of the bidirectional screw rod penetrates through the clamping table and is connected with the driving motor. The driving motor is fixedly connected with one end of the clamping table. The other side of the driving plate is fixedly connected with clamping plates. The opposite sides of the two groups of clamping plates are rotatably connected with chucks. The chucks on the opposite sides of the clamping plates are fixedly connected with rotating shafts. The rotating shafts are fixedly connected with bearings. The bearings are embeddedly connected with the clamping plates. The rotating shafts penetrate through the bearings and are fixedly connected with limit blocks. The limit blocks are rotatably connected with the clamping plates.

[0011] In one embodiment, the vertical sliding frame and the mounting table are fixedly connected with reinforcing ribs. The clamping plates and the driving plates are fixedly connected with reinforcing plates.

[0012] In one embodiment, one group of the clamping plates is rotatably connected with a worm gear. The central shaft of the worm gear is fixedly connected with the limit block. The clamping plate on one side of the worm gear is rotatably connected with a worm. One end of the worm penetrates through the clamping plate and is connected with an adjusting motor. The adjusting motor is fixedly connected with one side of the clamping plate.

[0013] The utility model discloses the beneficial effect:

[0014] 1. Enhance the clamping stability: through the optimization structure design, the utility model discloses the uniform distribution of clamping force, like this not only improved the stability of workpiece in the processing process, also effectively avoided the workpiece deformation problem that leads to because clamping force is uneven, especially applicable to thin -walled or complex shape workpiece processing;

[0015] 2. Simple structure, convenient operation: the utility model pays attention to simplifying structure on the design, makes whole clamping mechanism easy to operate and maintain, even if the operation personnel of small and medium-sized enterprise, also can grasp the use method quickly, reduced the difficulty and cost of operation and maintenance;

[0016] 3. Strong adaptability: the clamping mechanism of the utility model can be adjusted flexibly and is suitable for workpieces of different sizes and shapes, having high adaptability, and can efficiently cope with single-piece small-batch production or mass production.

[0017] In summary, the workpiece clamping mechanism of the vertical machining center has the advantages of high efficiency, stability, precision, convenient operation and the like, significantly improves the comprehensive performance and production efficiency of the vertical machining center, and meets the urgent needs of modern manufacturing industry for efficient and high-precision machining. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a translation sliding assembly structure schematic view of the utility model;

[0020] Figure 3 It is a vertical sliding frame connecting structure schematic view of the utility model;

[0021] Figure 4 It is a clamping assembly structure schematic view of the utility model;

[0022] Figure 5 It is a clamping table section connecting structure schematic view of the utility model.

[0023] In the figure: 1 translation sliding assembly, 2 installation table, 3 vertical sliding assembly, 4 clamping table, 5 clamping assembly, 6 reinforcing rib, 7 reinforcing plate, 100 translation sliding frame, 101 translation drive screw, 102 translation sliding rail, 103 translation motor, 200 vertical sliding frame, 201 vertical drive screw, 202 vertical sliding rail, 203 vertical sliding block, 204 vertical motor, 205 displacement block, 300 sliding guide block, 301 drive block, 302 drive plate, 303 bidirectional screw, 304 drive motor, 305 clamping plate, 306 chuck, 307 sliding guide groove, 308 drive groove, 309 rotating shaft, 310 bearing, 311 limit block, 312 worm wheel, 313 worm, 314 adjusting motor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0025] Please refer to Figures 1-5The utility model provides a workpiece clamping mechanism of vertical machining center, including translation sliding assembly 1, installation platform 2, vertical sliding assembly 3, clamping platform 4, clamping assembly 5, one end of translation sliding assembly 1 is provided with machining center equipment, and the machining center equipment is used for workpiece processing, and translation sliding assembly 1 can drive clamping mechanism to approach or be away from machining center equipment, wherein the operation of being away is for the taking and placing operation of workpiece, and the approach of machining center equipment is for workpiece processing, slidingly connected with installation platform 2 on translation sliding assembly 1, and the upper end of installation platform 2 is fixedly connected with vertical sliding assembly 3, and vertical sliding assembly 3 is used for adjusting the clamping height of workpiece, and it is convenient for the better processing operation of machining center equipment, and the side of vertical sliding assembly 3 is slidingly connected with clamping platform 4, and one side of clamping platform 4 is provided with clamping assembly 5, and clamping assembly 5 is responsible for actual workpiece clamping work.

[0026] Wherein one embodiment, translation sliding assembly 1 includes translation sliding frame 100, translation drive screw 101, translation sliding rail 102, translation motor 103, installation platform 2 is slidingly connected in translation sliding frame 100, two groups of opposite parallel translation sliding rails 102 are fixedly connected in translation sliding frame 100, the lower end of installation platform 2 is provided with sliding groove, and translation sliding rail 102 is slidingly connected in sliding groove respectively, the middle part of installation platform 2 is penetrated and is screw connected with translation drive screw 101, and translation drive screw 101 is rotatably connected in translation sliding frame 100, one end of translation drive screw 101 is connected with translation motor 103 after passing through translation sliding frame 100, and translation motor 103 is fixedly connected on the outer end one side of translation sliding frame 100, when specifically operating, start translation motor 103, and translation motor 103 drives translation drive screw 101 to rotate, and translation drive screw 101 drives installation platform 2 to relatively slide in translation sliding frame 100, wherein translation sliding rail 102 provides the smoothness for the sliding of installation platform 2.

[0027] In one embodiment, the vertical sliding assembly 3 comprises a vertical sliding frame 200, a vertical driving screw 201, vertical sliding rails 202, vertical sliding blocks 203, and a vertical motor 204. The vertical sliding frame 200 is fixedly connected to the upper end of the mounting table 2. Two groups of vertical sliding rails 202 are fixedly connected in the vertical sliding frame 200 in parallel. A plurality of vertical sliding blocks 203 are slidably connected to the vertical sliding rails 202. The vertical sliding blocks 203 are fixedly connected to one side of the clamping table 4. A displacement block 205 is fixedly connected to the clamping table 4 on the same side. The vertical driving screw 201 is threadedly connected to the displacement block 205. The vertical driving screw 201 is rotatably connected in the vertical sliding frame 200. One end of the vertical driving screw 201 is connected to the vertical motor 204 after penetrating through the top of the vertical sliding frame 200. The vertical motor 204 is fixedly connected to the top end of the vertical sliding frame 200. When the height of the workpiece needs to be adjusted, the vertical motor 204 is started. The vertical motor 204 drives the vertical driving screw 201 to rotate. The vertical driving screw 201 drives the displacement block 205 to slide up and down. The displacement block 205 drives the clamping table 4 to slide up and down, thereby adjusting the height of the workpiece. The vertical sliding rails 202 and the vertical sliding blocks 203 are used to improve the sliding stability of the clamping table 4.

[0028] In one embodiment, the clamping assembly 5 includes sliding guide block 300, drive block 301, drive plate 302, bidirectional screw rod 303, drive motor 304, clamping plate 305, chuck 306, one side of the clamping table 4 is slidably connected with two groups of symmetrical drive plates 302, the drive plates 302 are fixedly connected with two groups of sliding guide blocks 300, the sliding guide blocks 300 are respectively provided with sliding guide grooves 307 on the opposite side of the clamping table 4, the sliding guide blocks 300 are respectively slidably connected in the sliding guide grooves 307, the drive plates 302 between the sliding guide blocks 300 are fixedly connected with drive blocks 301, the drive blocks 301 are slidably connected in the drive grooves 308 on the opposite side of the clamping table 4, the bidirectional screw rod 303 is rotatably connected in the drive grooves 308, the two sections of threads of the bidirectional screw rod 303 are respectively threadedly connected with the drive blocks 301, one end of the bidirectional screw rod 303 is connected with the drive motor 304 after penetrating out of the clamping table 4, the drive motor 304 is fixedly connected at one end of the clamping table 4, the other side of the drive plate 302 is fixedly connected with the clamping plate 305, the opposite sides of the two groups of clamping plates 305 are rotatably connected with chucks 306, the chucks 306 on the opposite sides of the clamping plates 305 are fixedly connected with rotating shafts 309, the rotating shafts 309 are fixedly connected with bearings 310, the bearings 310 are embeddedly connected on the clamping plates 305, the rotating shafts 309 are fixedly connected with limit blocks 311 after penetrating through the bearings 310, the limit blocks 311 are rotatably connected in the clamping plates 305, in the specific operation, first, the lower chuck 306 on the clamping plate 305 is used to clamp and fix the lower end of the workpiece, then the drive motor 304 is started, the drive motor 304 drives the bidirectional screw rod 303 to rotate, the bidirectional screw rod 303 drives the two groups of drive blocks 301 to move close to each other, the drive blocks 301 drive the drive plates 302 and the clamping plates 305 to move close to each other, so that the chuck 306 on the upper clamping plate 305 approaches the upper end of the workpiece, then the upper chuck 306 is used to clamp and fix the upper end of the workpiece, the workpiece is fixed as a whole through the clamping of the two groups of chucks 306, then the workpiece is moved close to the center machining equipment through the translation sliding assembly 1, and then the outer periphery of the workpiece is machined through the center machining equipment.

[0029] In the present embodiment, the two groups of clamping plates 305 can be maximally moved away from each other, then the lower chuck 306 on the clamping plate 305 is directly used to clamp and fix the workpiece, and then the workpiece is moved close to the center machining equipment for machining operation, so as to increase the adaptability of workpiece machining.

[0030] In one embodiment, the vertical sliding frame 200 and the mounting table 2 are fixedly connected with reinforcing ribs 6, which are used to improve the connection stability between the vertical sliding frame 200 and the mounting table 2, and the clamping plates 305 and the drive plates 302 are fixedly connected with reinforcing plates 7, which are used to improve the connection stability between the clamping plates 305 and the drive plates 302.

[0031] In one embodiment, the worm wheel 312 is rotatably connected in the clamping plate 305, the center shaft of the worm wheel 312 is fixedly connected with the limiting block 311, the clamping plate 305 on one side of the worm wheel 312 is rotatably connected with the worm 313, one end of the worm 313 is connected with the adjusting motor 314 after penetrating out of the clamping plate 305, the adjusting motor 314 is fixedly connected on one side of the clamping plate 305, during the workpiece machining process, the worm 313 can be driven to rotate by the adjusting motor 314, the worm wheel 312 can be driven to rotate by the worm 313, the limiting block 311 can be driven to rotate by the worm wheel 312, the rotating shaft 309 and the chuck 306 are driven to rotate by the limiting block 311, the workpiece is driven to rotate by the chuck 306, so that the center machining equipment can conveniently and comprehensively machine the outer peripheral side of the workpiece.

[0032] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the involved claims.

[0033] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A workpiece clamping mechanism for a vertical machining center, comprising a translational sliding assembly (1), a mounting platform (2), a vertical sliding assembly (3), a clamping platform (4), and a clamping assembly (5), characterized in that: A machining center device is provided at one end of the translation sliding assembly (1); a mounting platform (2) is slidably connected to the translation sliding assembly (1); a vertical sliding assembly (3) is fixedly connected to the upper end of the mounting platform (2); a clamping platform (4) is slidably connected to one side of the vertical sliding assembly (3); and a clamping assembly (5) is provided on one side of the clamping platform (4).

2. The workpiece clamping mechanism of a vertical machining center according to claim 1, characterized in that: The translation sliding assembly (1) comprises a translation slide (100), a translation driving screw rod (101), a translation sliding rail (102), and a translation motor (103); the mounting platform (2) is slidably connected in the translation slide (100); two sets of relatively parallel translation sliding rails (102) are fixedly connected in the translation slide (100); a sliding groove is provided at the lower end of the mounting platform (2); the translation sliding rails (102) are respectively slidably connected in the sliding groove; a translation driving screw rod (101) passes through the middle of the mounting platform (2) and is threadedly connected thereto; the translation driving screw rod (101) is rotatably connected in the translation slide (100); one end of the translation driving screw rod (101) passes through the translation slide (100) and is connected to the translation motor (103); the translation motor (103) is fixedly connected to one side of the outer end of the translation slide (100).

3. The workpiece clamping mechanism of a vertical machining center according to claim 2, characterized in that: The vertical sliding assembly (3) comprises a vertical slide (200), a vertical driving screw (201), a vertical sliding rail (202), a vertical slider (203), and a vertical motor (204). The vertical slide (200) is fixedly connected to the upper end of the mounting platform (2). Two sets of relatively parallel vertical sliding rails (202) are fixedly connected in the vertical slide (200). A plurality of vertical sliders (203) are slidably connected to the vertical sliding rails (202). The vertical sliders (203) are all fixedly connected to the vertical slide. On one side of the clamping platform (4), a displacement block (205) is fixedly connected to the clamping platform (4) on the same side, and a vertical driving screw rod (201) threadedly connected thereto passes through the displacement block (205). The vertical driving screw rod (201) is rotatably connected to the vertical slide (200), and one end of the vertical driving screw rod (201) passes through the top of the vertical slide (200) and is connected to the vertical motor (204). The vertical motor (204) is fixedly connected to the top of the vertical slide (200).

4. The workpiece clamping mechanism of a vertical machining center according to claim 3, characterized in that: The clamping assembly (5) includes a sliding guide block (300), a driving block (301), a driving plate (302), a bidirectional screw rod (303), a driving motor (304), a clamping plate (305), and a chuck (306). One side of the clamping platform (4) is slidably connected to two sets of symmetrical driving plates (302). The driving plates (302) are fixedly connected to two sets of sliding guide blocks (300). The sliding guide blocks (300) are opposite to the clamping platform (4). A guide groove (307) is provided on one side, and the guide blocks (300) are respectively connected in a sliding manner in the guide groove (307). A drive block (301) is fixedly connected to the drive plate (302) between the guide blocks (300). A drive groove (308) is provided on the clamping table (4) opposite to the drive block (301). The drive blocks (301) are all connected in a sliding manner in the drive groove (308). A drive block (301) is rotatably connected in the drive groove (308). A bidirectional screw rod (303) is provided, wherein the two threads of the bidirectional screw rod (303) are respectively connected to the driving block (301) by threading. One end of the bidirectional screw rod (303) passes through the clamping platform (4) and is connected to the driving motor (304). The driving motor (304) is fixedly connected to one end of the clamping platform (4). The other side of the driving plate (302) is fixedly connected to the clamping plate (305). The opposite sides of the two sets of the clamping plates (305) are both rotatably connected. A chuck (306) is provided. A rotating shaft (309) is fixedly connected to the chuck (306) on the opposite side of the clamping plate (305). A bearing (310) is fixedly connected to the rotating shaft (309). The bearing (310) is embedded and connected to the clamping plate (305). The rotating shaft (309) passes through the bearing (310) and is fixedly connected to a limiting block (311). The limiting block (311) is rotatably connected in the clamping plate (305).

5. The workpiece clamping mechanism of a vertical machining center according to claim 4, characterized in that: A reinforcing rib (6) is fixedly connected between the vertical slide (200) and the mounting platform (2), and a reinforcing plate (7) is fixedly connected between the clamping plate (305) and the driving plate (302).

6. The workpiece clamping mechanism of a vertical machining center according to claim 5, characterized in that: A worm gear (312) is rotatably connected to one of the clamping plates (305), and the central axis of the worm gear (312) is fixedly connected to the limit block (311). A worm (313) is rotatably connected to the clamping plate (305) on one side of the worm gear (312). One end of the worm (313) passes through the clamping plate (305) and is connected to the adjustment motor (314). The adjustment motor (314) is fixedly connected to one side of the clamping plate (305).

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