A precision mechanical parts machining positioning device
Patent Information
- Application Number
- CN202521951099.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-09-11
AI Technical Summary
每次更换加工件型号时，都需要重新校对、调整甚至重新安装夹具，耗费大量生产准备时间，难以适应多品种，有待改进
本实用新型通过电机的驱动力，带动了第一螺纹杆、第一螺纹套、第一限位杆、第一夹持板、蜗杆、第二螺纹杆、涡轮、第二螺纹套、第二限位杆等组件相互配合，实现了启动贯穿在中空板侧面的电机，从而带动固定在输出轴末端的第一螺纹杆转动，第一螺纹杆转动带动螺纹连接在圆周面的两个第一螺纹套在第一限位杆圆周面做直线滑动相互靠近，第一螺纹套做直线运动，在对不同型号的产品进行夹持时，无需更换不同的定位辅助元件，省时省力。
Smart Images
Figure CN224701618U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of machining positioning devices, and in particular relates to a precision mechanical parts machining positioning device. Background Technology
[0002] In the CNC milling and turning processes of precision mechanical parts, the rapid, accurate and reliable positioning of the workpiece is the key to ensuring machining accuracy, consistency and production efficiency. At present, the positioning methods commonly used in this field mainly include traditional fixture positioning (such as mechanical vises and pressure plates) and special tooling positioning.
[0003] Traditional general-purpose fixtures are typically designed for workpieces with standard shapes. For precision parts with complex contours, irregular shapes, or thin walls, frequent replacement or addition of special jaws, positioning blocks, and other auxiliary components is required. Each time the workpiece model is changed, the fixture needs to be recalibrated, adjusted, or even reinstalled, consuming a significant amount of production preparation time. This makes it difficult to adapt to a wide variety of products and needs improvement. Utility Model Content
[0004] The purpose of this utility model is to provide a precision mechanical parts machining positioning device. Through the driving force of the motor, the first threaded rod, the first threaded sleeve, the first limiting rod, the first clamping plate, the worm gear, the second threaded rod, the turbine, the second threaded sleeve, the second limiting rod and other components work together to start the motor that runs through the side of the hollow plate, thereby driving the first threaded rod fixed at the end of the output shaft to rotate, thus solving the existing problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a precision mechanical parts machining positioning device, comprising a machining machine and a positioning mechanism. The positioning mechanism is located on the top of the machining machine and includes a hollow plate fixedly connected to the top of the machining machine. A motor passes through the side of the hollow plate, and a first threaded rod is fixedly connected to the end of the motor's output shaft. A first threaded sleeve is threadedly connected to the circumferential surface of the first threaded rod, and a first clamping plate is fixedly connected to the circumferential surface of the first threaded sleeve. A first limiting rod is fixedly connected to the inner wall of the hollow plate.
[0006] Furthermore, a worm gear is fixedly connected to the circumferential surface of the first threaded rod, a second threaded rod is rotatably connected to the inner wall of the hollow plate, a second threaded sleeve is threadedly connected to the circumferential surface of the second threaded rod, a turbine is fixedly connected to the circumferential surface of the second threaded rod, a second limiting rod is fixedly connected to the inner wall of the hollow plate, and a second clamping plate is fixedly connected to the circumferential surface of the second threaded sleeve. The above design is beneficial because when the second threaded rod rotates, it drives the first threaded sleeve threaded to the circumferential surface to slide on the circumferential surface of the second limiting rod, thereby clamping the other two sides of the workpiece to be processed.
[0007] Furthermore, the first threaded sleeve is slidably connected to the circumferential surface of the first limiting rod, and the second threaded sleeve is slidably connected to the circumferential surface of the second limiting rod. The worm and the turbine mesh with each other, and the side section of the hollow plate is set to a cross shape. The design of the worm is advantageous because when the worm rotates, it drives the meshing turbine to rotate.
[0008] Furthermore, a secondary reinforcement mechanism is provided on the side of the first clamping plate. The secondary reinforcement mechanism includes a connecting block, which is fixedly connected to the side of the first clamping plate. A sliding groove is formed on the top of the connecting block, and a sliding rod is slidably connected to the inner wall of the sliding groove. A groove is formed on the circumferential surface of the sliding rod, and a spring is fixedly connected to the inner wall of the groove. A pressure block is fixedly connected to the end of the spring away from the groove, and a limit plate is fixedly connected to the inner wall of the sliding groove. The above design is beneficial for clamping the top of the product to be processed and preventing displacement.
[0009] Furthermore, a handle is fixedly connected to the top of the sliding rod, and the handle is designed to facilitate operation by the staff.
[0010] Furthermore, the limiting plate is located on the movement trajectory of the pressure block, and the side cross-section of the pressure block is set to an arc shape. Setting the side cross-section of the pressure block to an arc shape is beneficial for the pressure block to slide on the inner wall of the groove when it is squeezed.
[0011] This utility model has the following beneficial effects: This invention utilizes the driving force of a motor to activate components such as a first threaded rod, a first threaded sleeve, a first limiting rod, a first clamping plate, a worm gear, a second threaded rod, a turbine, a second threaded sleeve, and a second limiting rod. This enables the motor, which runs through the side of the hollow plate, to rotate, thereby rotating the first threaded rod fixed at the end of the output shaft. The rotation of the first threaded rod causes two first threaded sleeves, which are threaded onto the circumferential surface, to slide linearly closer to each other on the circumferential surface of the first limiting rod. The first threaded sleeves also move linearly. When clamping different models of products, there is no need to change different positioning auxiliary components, saving time and effort.
[0012] This invention utilizes the sliding force of a sliding rod to drive the connecting block, sliding groove, groove, spring, pressure block, and limiting plate to work together. After the first and second clamping plates have clamped the product to be processed, the operator can hold the handle fixed to the top of the sliding rod and press down on the handle, causing the sliding rod to slide downward on the inner wall of the sliding groove. The downward sliding of the sliding rod drives the spring fixed to the inner wall of the groove to move downward. After clamping multiple products to be processed, the top of the product can be clamped.
[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a three-dimensional appearance diagram of the present invention; Figure 2 This is a schematic diagram of a half-section three-dimensional view of the hollow plate of this utility model; Figure 3 This is a schematic diagram of the meshing at the worm gear turbine of this utility model; Figure 4 This is a three-dimensional half-section view of the connecting block of this utility model; Figure 5 For the present utility model Figure 4 A three-dimensional magnified diagram of A in the middle.
[0016] The attached diagram lists the components represented by each number as follows: 1. Processing machine; 2. Positioning mechanism; 21. Hollow plate; 22. Motor; 23. First threaded rod; 24. First threaded sleeve; 25. First limiting rod; 26. First clamping plate; 27. Worm gear; 28. Second threaded rod; 29. Turbine; 210. Second threaded sleeve; 211. Second limiting rod; 212. Second clamping plate; 3. Secondary reinforcement mechanism; 31. Connecting block; 32. Slide groove; 33. Sliding rod; 34. Groove; 35. Spring; 36. Pressure block; 37. Limiting plate; 38. Handle. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-5 As shown, this utility model is a precision mechanical parts machining positioning device, including a machining machine 1 and a positioning mechanism 2. The positioning mechanism 2 is located on the top of the machining machine 1. The positioning mechanism 2 includes a hollow plate 21, which is fixedly connected to the top of the machining machine 1. A motor 22 passes through the side of the hollow plate 21. A first threaded rod 23 is fixedly connected to the end of the output shaft of the motor 22. A first threaded sleeve 24 is threadedly connected to the circumferential surface of the first threaded rod 23. A first clamping plate 26 is fixedly connected to the circumferential surface of the first threaded sleeve 24. A first limiting rod 25 is fixedly connected to the inner side wall of the hollow plate 21.
[0019] As shown in the figure, a worm gear 27 is fixedly connected to the circumferential surface of the first threaded rod 23, a second threaded rod 28 is rotatably connected to the inner wall of the hollow plate 21, a second threaded sleeve 210 is threadedly connected to the circumferential surface of the second threaded rod 28, a turbine 29 is fixedly connected to the circumferential surface of the second threaded rod 28, a second limiting rod 211 is fixedly connected to the inner wall of the hollow plate 21, and a second clamping plate 212 is fixedly connected to the circumferential surface of the second threaded sleeve 210. The above design is beneficial to the fact that when the second threaded rod 28 rotates, it drives the first threaded sleeve 24 threadedly connected to the circumferential surface to slide on the circumferential surface of the second limiting rod 211, thereby clamping the other two sides of the workpiece to be processed.
[0020] As shown in the figure, the first threaded sleeve 24 is slidably connected to the circumferential surface of the first limiting rod 25, and the second threaded sleeve 210 is slidably connected to the circumferential surface of the second limiting rod 211. The worm 27 and the turbine 29 mesh with each other. The side section of the hollow plate 21 is set as a cross shape. The design of the worm 27 is advantageous because when the worm 27 rotates, it drives the meshing turbine 29 to rotate.
[0021] As shown in the figure, a secondary reinforcement mechanism 3 is provided on the side of the first clamping plate 26. The secondary reinforcement mechanism 3 includes a connecting block 31, which is fixedly connected to the side of the first clamping plate 26. A sliding groove 32 is provided on the top of the connecting block 31. A sliding rod 33 is slidably connected to the inner wall of the sliding groove 32. A groove 34 is provided on the circumferential surface of the sliding rod 33. A spring 35 is fixedly connected to the inner wall of the groove 34. A pressure block 36 is fixedly connected to the end of the spring 35 away from the groove 34. A limit plate 37 is fixedly connected to the inner wall of the sliding groove 32. The above design is beneficial for clamping the top of the product to be processed and preventing displacement.
[0022] As shown in the figure, a handle 38 is fixedly connected to the top of the sliding rod 33. The design of the handle 38 facilitates operation by the staff.
[0023] As shown in the figure, the limiting plate 37 is located on the movement trajectory of the pressure block 36. The side cross section of the pressure block 36 is set to be arc-shaped. The arc-shaped side cross section of the pressure block 36 is conducive to the pressure block 36 sliding on the inner wall of the groove 34 when it is squeezed.
[0024] A specific application of this embodiment is as follows: When it is necessary to clamp the workpiece to be processed, the operator starts the motor 22 that runs through the side of the hollow plate 21, thereby driving the first threaded rod 23 fixed at the end of the output shaft to rotate. The rotation of the first threaded rod 23 causes the two first threaded sleeves 24 threadedly connected to the circumferential surface to slide linearly closer to each other on the circumferential surface of the first limiting rod 25. The linear movement of the first threaded sleeves 24 simultaneously causes the two first clamping plates 26 fixed on the circumferential surface to move closer to each other. When the first threaded rod 23 rotates, it drives the worm gear 27 fixed on the circumferential surface to rotate. The rotation of the worm gear 27 causes... The meshing turbine 29 is driven by a force, which simultaneously causes the second threaded rod 28 rotating on the inner wall of the hollow plate 21 to rotate. The rotation of the second threaded rod 28 drives two second threaded sleeves 210, threaded onto the circumferential surface, to move linearly closer to each other on the circumferential surface of the second limiting rod 211. When the two second threaded sleeves 210 approach each other, they cause the second clamping plates 212, fixed on the circumferential surface, to approach each other. At this time, the worker places the product to be processed on the top of the hollow plate 21. As the motor 22 continues to operate, the first clamping plate 26 and the second clamping plate 212 come into contact with the outer surface of the product to be processed. After the product to be processed is clamped, once the first clamping plate 26 and the second clamping plate 212 have clamped the product, the operator grasps the handle 38 fixed to the top of the sliding rod 33 and presses it down. This causes the sliding rod 33 to slide downwards along the inner wall of the groove 32. The downward movement of the sliding rod 33 drives the spring 35 fixed to the inner wall of the groove 34 to move downwards. The downward movement of the spring 35 drives the pressure block 36 fixed to the other end to move downwards. When the pressure block 36 has moved downwards a certain distance, it contacts the limiting plate 37 fixed to the inner wall of the groove 32. As the operator continues to press down... Pressing down on the handle 38 causes the pressure block 36 to press against the limiting plate 37, while simultaneously applying a reaction force to the pressure block 36, causing it to slide against the inner wall of the groove 34. As the pressure block 36 slides into the groove 34, the spring 35 remains taut. Once the sliding rod 33 contacts the top of the product to be processed and completes the clamping, the operator stops pressing the handle 38, causing the pressure block 36 to stop pressing against the limiting plate 37. At the same time, the spring 35 returns to its original position due to its elasticity, thereby causing the pressure block 36 to return to its original position and completing the limiting of the top of the product to be processed.
[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A precision mechanical assembly machine tool positioning device, comprising a tool machine (1) and a positioning mechanism (2), characterized in that: The positioning mechanism (2) is located on the top of the processing machine (1); The positioning mechanism (2) includes a hollow plate (21), which is fixedly connected to the top of the processing machine (1). A motor (22) passes through the side of the hollow plate (21). A first threaded rod (23) is fixedly connected to the end of the output shaft of the motor (22). A first threaded sleeve (24) is threadedly connected to the circumferential surface of the first threaded rod (23). A first clamping plate (26) is fixedly connected to the circumferential surface of the first threaded sleeve (24). A first limiting rod (25) is fixedly connected to the inner side wall of the hollow plate (21).
2. The precision mechanical parts machining positioning device according to claim 1, characterized in that, The circumferential surface of the first threaded rod (23) is fixedly connected to a worm gear (27), the inner wall of the hollow plate (21) is rotatably connected to a second threaded rod (28), the circumferential surface of the second threaded rod (28) is threadedly connected to a second threaded sleeve (210), the circumferential surface of the second threaded rod (28) is fixedly connected to a turbine (29), the inner wall of the hollow plate (21) is fixedly connected to a second limiting rod (211), and the circumferential surface of the second threaded sleeve (210) is fixedly connected to a second clamping plate (212).
3. The precision mechanical parts machining positioning device according to claim 2, characterized in that, The first threaded sleeve (24) is slidably connected to the circumferential surface of the first limiting rod (25), the second threaded sleeve (210) is slidably connected to the circumferential surface of the second limiting rod (211), the worm (27) and the turbine (29) mesh with each other, and the side section of the hollow plate (21) is set to a cross shape.
4. The precision mechanical parts machining positioning device according to claim 3, characterized in that, A secondary reinforcement mechanism (3) is provided on the side of the first clamping plate (26). The secondary reinforcement mechanism (3) includes a connecting block (31). The connecting block (31) is fixedly connected to the side of the first clamping plate (26). A sliding groove (32) is provided on the top of the connecting block (31). A sliding rod (33) is slidably connected to the inner wall of the sliding groove (32). A groove (34) is provided on the circumferential surface of the sliding rod (33). A spring (35) is fixedly connected to the inner wall of the groove (34). A pressure block (36) is fixedly connected to the end of the spring (35) away from the groove (34). A limit plate (37) is fixedly connected to the inner wall of the sliding groove (32).
5. The precision mechanical parts machining positioning device according to claim 4, characterized in that, A handle (38) is fixedly connected to the top of the sliding rod (33).
6. The precision mechanical parts machining positioning device according to claim 5, characterized in that, The limiting plate (37) is located on the movement trajectory of the pressure block (36), and the side cross section of the pressure block (36) is set to be arc-shaped.