Workpiece processing balancing mechanism of numerical control machine tool
Patent Information
- Application Number
- CN202522271701.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0003]传统机构常采用固定尺寸的刚性夹持组件,难以适配不同直径、不规则外轮廓的工件,导致工件在加工过程中不平衡,综上所述,为了解决上述问题,降低损耗,本实用新型应运而生
1.本实用新型通过设置平衡结构,通过液压杆驱动固定盘升降,联动四个连接杆带动平衡杆沿稳定槽滑动,实现固定结构向中心聚拢或向外张开,可灵活适配不同直径、不规则外轮廓的工件,突破传统刚性夹持组件固定尺寸的局限,扩大了机构的适用范围,四个固定结构呈对称分布,在平衡杆带动下从四周对工件形成环抱式夹持,通过对称位置调整确保工件处于中心平衡状态。
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Figure CN224846932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tool workpiece processing technology, and specifically to a CNC machine tool workpiece processing balancing mechanism. Background Technology
[0002] CNC machine tool machining is an automated machining method that utilizes digital program control to precisely complete processes such as cutting, milling, and drilling of complex workpieces. Before machining, technicians write CNC programs based on workpiece drawings, setting parameters such as tool path, spindle speed, and feed rate. The program is then input into the machine tool control system. During machining, the machine tool drives the spindle and worktable in conjunction with the program instructions, causing the cutting tool to precisely cut the workpiece fixed in the fixture. It features high precision and high stability, reduces manual intervention, avoids human error, and is suitable for mass production and machining of complex, irregularly shaped parts.
[0003] Traditional mechanisms often use rigid clamping components of fixed size, which are difficult to adapt to workpieces of different diameters and irregular outer contours, resulting in imbalance of the workpiece during processing. In order to solve the above problems and reduce losses, this utility model was developed. Utility Model Content
[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a workpiece machining balancing mechanism for CNC machine tools, comprising: a base, characterized in that: a support structure and a balancing structure are fixedly connected to the top of the base, the balancing structure includes a hydraulic rod, the bottom of the hydraulic rod is fixedly connected to the top of the base, a fixed plate is fixedly connected to the top of the hydraulic rod, four connecting rods are rotatably connected to the top of the fixed plate, a connecting block is rotatably connected to the end of each connecting rod away from the fixed plate, a balancing rod is fixedly connected to the top of the connecting block, and a fixing structure is fixedly connected to the top of the balancing rod.
[0005] Preferably, the balance bar has a cylindrical structure.
[0006] Preferably, the fixing structure includes a fixing block, the bottom of which is fixedly connected to the top of the balance bar.
[0007] Preferably, a fixing plate is fixedly connected to the outer wall of the fixing block, the fixing plate has an arc-shaped structure, and a protective block is fixedly connected to the outer wall of the fixing plate.
[0008] Preferably, the support structure includes a support frame, the bottom of which is fixedly connected to the top of the base, a stabilizing groove is provided on the top of the support frame, and a support rod is fixedly connected to the outer wall of the support frame, the bottom of which is fixedly connected to the top of the base.
[0009] Preferably, the outer wall of the support rod is slidably connected to the inner wall of the fixed plate, and the inner wall of the stabilizing groove is slidably connected to the outer wall of the balance bar.
[0010] The beneficial effects of this utility model are as follows: 1. This utility model, by setting up a balancing structure, drives the fixed plate to rise and fall through a hydraulic rod, and links four connecting rods to drive the balance bar to slide along the stabilizing groove, so that the fixed structure can converge towards the center or open outward. It can flexibly adapt to workpieces of different diameters and irregular outer contours, break through the limitations of the fixed size of traditional rigid clamping components, and expand the applicability of the mechanism. The four fixed structures are symmetrically distributed, and under the drive of the balance bar, they form a ring-shaped clamping of the workpiece from all sides. The symmetrical position adjustment ensures that the workpiece is in a central balanced state.
[0011] 2. This utility model features a fixed structure with an arc-shaped fixing plate that fits tightly against the outer surface of the workpiece, increasing the clamping contact area to distribute pressure. The protective block on the outer wall of the fixing plate directly contacts the workpiece, which can buffer the clamping force and prevent hard clamping from causing scratches, squeezing deformation, or other damage to the workpiece surface. It is especially suitable for processing fragile materials or precision workpieces. Attached Figure Description
[0012] Figure 1 This is the front view of this utility model; Figure 2 This is a schematic diagram of the balance structure of this utility model; Figure 3 This is a schematic diagram of the fixing structure of this utility model; Figure 4 This is a schematic diagram of the support structure of this utility model.
[0013] In the diagram: 1. Base; 2. Support structure; 3. Balancing structure; 21. Support frame; 22. Support rod; 23. Stabilizing groove; 31. Hydraulic rod; 32. Fixing plate; 33. Connecting rod; 34. Connecting block; 35. Balancing rod; 36. Fixing structure; 361. Fixing block; 362. Fixing plate; 363. Protective block. Detailed Implementation
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example:
[0015] Please see Figure 1 - Figure 2 This utility model provides a technical solution: a workpiece machining balancing mechanism for CNC machine tools, comprising: a base 1, a support structure 2 and a balancing structure 3 fixedly connected to the top of the base 1, the balancing structure 3 including a hydraulic rod 31, the bottom of the hydraulic rod 31 fixedly connected to the top of the base 1, a fixed plate 32 fixedly connected to the top of the hydraulic rod 31, four connecting rods 33 rotatably connected to the top of the fixed plate 32, a connecting block 34 rotatably connected to the end of the connecting rod 33 away from the fixed plate 32, a balancing rod 35 fixedly connected to the top of the connecting block 34, and a fixing structure 36 fixedly connected to the top of the balancing rod 35. The balancing rod 35 has a cylindrical structure. When the hydraulic rod 31 is activated, its bottom is fixed to the base 1, and its top drives the fixed plate 32 to rise and fall along the support rod 22 to adjust to a suitable height. When the fixed plate 32 rises or falls, the four connecting rods 33 rotatably connected to its top rotate accordingly, and the end of the connecting rod 33 away from the fixed plate 32 pulls or pushes the balancing rod 35 through the connecting block 34. Because the balance bar 35 is cylindrical and slidably connected to the stabilizing groove 23, it will slide along the stabilizing groove 23, thereby driving the top fixed structure 36 to move synchronously. Under the linkage of the connecting rod 33 and the connecting block 34, the four balance bars 35 converge towards the center or open outward to clamp workpieces of different sizes, and the workpieces are kept in a balanced state by adjusting their symmetrical positions.
[0016] Please see Figure 3 The fixing structure 36 includes a fixing block 361, the bottom of which is fixedly connected to the top of the balance bar 35. A fixing plate 362 with an arc-shaped structure is fixedly connected to the outer wall of the fixing block 361, and a protective block 363 is fixedly connected to the outer wall of the fixing plate 362. When the balance bar 35 moves the fixing structure 36 to fit the workpiece, the fixing block 361 provides support based on its fixed connection with the balance bar 35. Due to its arc-shaped structure, the fixing plate 362 on the outer wall of the fixing block 361 can fit tightly against the outer surface of the workpiece, increasing the clamping contact area. The protective block 363 on the outer wall of the fixing plate 362 directly contacts the workpiece, preventing the workpiece from being damaged by rigid clamping. At this time, the four fixing structures 36, driven by the balance bar 35, form a ring-shaped clamping around the workpiece from all sides. By utilizing the adaptability of the arc-shaped fixing plate 362 and the buffering effect of the protective block 363, both the clamping stability and the protection of the workpiece are ensured, guaranteeing the balanced clamping state of the workpiece before processing.
[0017] Please see Figure 4The support structure 2 includes a support frame 21, the bottom of which is fixedly connected to the top of the base 1. A stabilizing groove 23 is provided on the top of the support frame 21. A support rod 22 is fixedly connected to the outer wall of the support frame 21, the bottom of which is fixedly connected to the top of the base 1. The outer wall of the support rod 22 is slidably connected to the inner wall of the fixed plate 32. The inner wall of the stabilizing groove 23 is slidably connected to the outer wall of the balance bar 35. The bottom of the support frame 21 is fixed to the base 1, providing basic support for the entire structure. When the fixed plate 32 is raised or lowered, its inner wall slides along the outer wall of the support rod 22. The support rod 22, by being fixed to the base 1 at its bottom, restricts the offset of the fixed plate 32, ensuring stable vertical movement. When the balance bar 35 slides, its outer wall slides along the inner wall of the stabilizing groove 23 at the top of the support frame 21. The stabilizing groove 23 constrains the movement trajectory of the balance bar 35, preventing it from swaying. The support rod 22 cooperates with the stabilizing groove 23 to limit the movement paths of the fixed plate 32 and the balance bar 35 respectively, ensuring that the entire mechanism remains stable during the process of the connecting rod 33 and the connecting block 34 driving the fixed structure 36 to clamp the workpiece, and avoiding the workpiece balance being affected by the shaking of the components.
[0018] Working principle: In use, the hydraulic rod 31 is activated, its bottom fixed to the base 1, and its top drives the fixed plate 32 to rise and fall along the support rod 22 to adjust to a suitable height. When the fixed plate 32 rises or falls, the four connecting rods 33 rotatably connected to its top rotate accordingly. The end of the connecting rod 33 away from the fixed plate 32 pulls or pushes the balance rod 35 through the connecting block 34. Because the balance rod 35 is cylindrical and slidably connected to the stabilizing groove 23, it slides along the stabilizing groove 23, thereby driving the fixed structure 36 at the top to move synchronously. Under the linkage of the connecting rods 33 and the connecting block 34, the four balance rods 35 converge towards the center or open outward to clamp workpieces of different sizes. The workpiece is kept in a balanced state by symmetrical position adjustment. When the balance rod 35 drives the fixed structure 36 to move to fit the workpiece, the fixed block 361 provides support based on its fixed connection with the balance rod 35. Due to its arc-shaped structure, the fixing plate 362 on the outer wall of the fixed block 361 can closely fit the outer surface of the workpiece, increasing the clamping contact area. The protective block 363 on the outer wall of the fixed plate 362 directly contacts the workpiece, preventing damage from rigid clamping. At this time, the four fixed structures 36, driven by the balance bar 35, form a ring-like clamp around the workpiece. Utilizing the adaptability of the arc-shaped fixed plate 362 and the buffering effect of the protective block 363, both stable clamping and workpiece protection are ensured, guaranteeing the balanced clamping state of the workpiece before processing. The bottom of the support frame 21 is fixed to the base 1, providing basic support for the entire structure. When the fixed plate 32 rises and falls, its inner wall slides along the outer wall of the support bar 22. The support bar 22, fixed to the base 1 at its bottom, restricts the offset of the fixed plate 32, ensuring stable vertical movement. When the balance bar 35 slides, its outer wall slides along the inner wall of the stabilizing groove 23 at the top of the support frame 21. The stabilizing groove 23 constrains the movement trajectory of the balance bar 35, preventing it from wobbling. The support rod 22 cooperates with the stabilizing groove 23 to limit the movement paths of the fixed plate 32 and the balance bar 35 respectively, ensuring that the entire mechanism remains stable during the process of the connecting rod 33 and the connecting block 34 driving the fixed structure 36 to clamp the workpiece, and avoiding the workpiece balance being affected by the shaking of the components.
[0019] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A workpiece machining balancing mechanism for CNC machine tools, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support structure (2) and a balance structure (3). The balancing structure (3) includes a hydraulic rod (31), the bottom of which is fixedly connected to the top of the base (1), a fixed plate (32) is fixedly connected to the top of the hydraulic rod (31), four connecting rods (33) are rotatably connected to the top of the fixed plate (32), a connecting block (34) is rotatably connected to the end of the connecting rod (33) away from the fixed plate (32), a balancing rod (35) is fixedly connected to the top of the connecting block (34), and a fixing structure (36) is fixedly connected to the top of the balancing rod (35).
2. The workpiece machining balancing mechanism for CNC machine tools according to claim 1, characterized in that: The balance bar (35) has a cylindrical structure.
3. The workpiece machining balancing mechanism for CNC machine tools according to claim 1, characterized in that: The fixing structure (36) includes a fixing block (361), the bottom of which is fixedly connected to the top of the balance bar (35).
4. The workpiece machining balancing mechanism for CNC machine tools according to claim 3, characterized in that: The outer wall of the fixing block (361) is fixedly connected to a fixing plate (362), the fixing plate (362) adopts an arc-shaped structure, and the outer wall of the fixing plate (362) is fixedly connected to a protective block (363).
5. The workpiece machining balancing mechanism for CNC machine tools according to claim 1, characterized in that: The support structure (2) includes a support frame (21), the bottom of which is fixedly connected to the top of the base (1), a stabilizing groove (23) is provided on the top of the support frame (21), and a support rod (22) is fixedly connected to the outer wall of the support frame (21), the bottom of which is fixedly connected to the top of the base (1).
6. The workpiece machining balancing mechanism for CNC machine tools according to claim 5, characterized in that: The outer wall of the support rod (22) is slidably connected to the inner wall of the fixed plate (32), and the inner wall of the stabilizing groove (23) is slidably connected to the outer wall of the balance rod (35).