A guide groove manufacturing positioning tool

CN224914218UActive Publication Date: 2026-10-30CHINA WATER RESOURCES NO 4 BUREAU (CHAMDO) ENERGY ENGINEERING CO LTD
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Patent Information

Application Number
CN202522472384.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-21
Publication Date
2026-10-30
Estimated Expiration
2035-11-21

AI Technical Summary

Technical Problem

[0003]现有的装夹适应性差且效率低下,面对不同尺寸规格的工件,操作人员需要频繁地手动调整夹具位置或更换夹具组件,此过程不仅繁琐耗时,严重制约生产效率,而且极度依赖操作人员的经验,手动调整的定位精度难以保证,直接影响后续导槽的加工质量;且易造成工件表面损伤或微观变形,传统的刚性夹持方式在提供锁紧力时,作用点为离散的局部区域,夹紧力集中,对于表面光洁度要求高或刚性较弱的工件,过大的集中应力极易导致工件表面压伤、划痕,甚至引发不可见的微观变形,从而造成工件报废或潜在的质量隐患

Benefits of technology

1.本实用,通过电动推杆驱动气动系统,将直线运动转化为均匀的气体压力,进而推动夹持单元动作,该设计不仅能根据工件尺寸自动调整初始位置,更能通过二次启动提供柔和且均匀的夹紧力,有效避免了在夹持过程中对工件表面造成损伤,实现了高精度与高安全性的统一。

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Abstract

The utility model belongs to the technical field of guide groove production, especially relate to a guide groove production positioning frock, the inside sliding installation of installation frame has the plug, the lateral wall fixed mounting of plug has connecting rod, the inside rotation installation of connecting rod has the limit stop, is provided with torsion spring between connecting rod and limit stop, is provided with electric push rod above the mounting seat, will linear motion convert into even gas pressure through electric push rod drive pneumatic system, and then push the clamping unit action, this design not only can automatic adjustment initial position according to work piece size, can provide even clamping force through secondary start -up more, effectively avoided the damage to work piece surface in the clamping process, realized the unity of high accuracy and high security, the whole clamping and loosening process is by electric push rod one -key control, action is quick, accurate, has improved the efficiency of mounting and unloading significantly, integrated waste box design facilitates quick cleaning processing waste, and torsion spring mechanism can ensure that the clamping unit is automatically reset after each loose clamp.
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Description

Technical Field

[0001] This utility model belongs to the field of guide groove manufacturing technology, and in particular relates to a guide groove manufacturing positioning tool. Background Technology

[0002] In the field of machining, for various workpieces that require guide grooves (especially those with relatively precise requirements or those that are easily damaged), the accuracy, efficiency, and safety of clamping and positioning have always been key aspects of the production process. Traditional guide groove machining commonly uses mechanical fixtures such as bolt clamps or rigid calipers.

[0003] Existing clamping methods are unsuitable and inefficient. When faced with workpieces of different sizes and specifications, operators need to frequently adjust the position of the clamps manually or replace the clamping components. This process is not only tedious and time-consuming, severely restricting production efficiency, but also highly dependent on the operator's experience. The positioning accuracy of manual adjustments is difficult to guarantee, directly affecting the machining quality of subsequent guide grooves. Furthermore, it is easy to cause surface damage or micro-deformation of the workpiece. When traditional rigid clamping methods provide locking force, the point of application is a discrete local area, and the clamping force is concentrated. For workpieces with high surface finish requirements or weak rigidity, excessive concentrated stress can easily lead to surface damage, scratches, or even invisible micro-deformation, resulting in workpiece scrap or potential quality hazards. Utility Model Content

[0004] To achieve the above objectives, this utility model proposes a positioning fixture for manufacturing guide grooves, which includes a mounting base, an mounting frame fixedly mounted on the top of the mounting base, a plug slidably mounted inside the mounting frame, a connecting rod fixedly mounted on the side wall of the plug, a limiting plate rotatably mounted inside the connecting rod, a torsion spring provided between the connecting rod and the limiting plate, and an electric push rod provided on the top of the mounting base.

[0005] In one example, a connecting plate is fixedly mounted on the output end of the electric actuator, and a piston is provided on the connecting plate relative to the end connected to the electric actuator. There are two pistons.

[0006] In one example, a connecting pipe is fixedly mounted on the piston at the end connected to the connecting plate, and the connecting pipe is fixedly mounted on the mounting frame at the end connected to the piston.

[0007] In one example, the limiting plate is L-shaped.

[0008] In one example, a mounting plate is fixedly installed above the mounting base.

[0009] In one example, a waste container is slidably mounted inside the mounting base.

[0010] The guide groove manufacturing and positioning fixture proposed in this utility model can bring the following beneficial effects: 1. This utility model uses an electric push rod to drive a pneumatic system, which converts linear motion into uniform gas pressure, thereby driving the clamping unit to move. This design can not only automatically adjust the initial position according to the workpiece size, but also provide a gentle and uniform clamping force through secondary start-up, effectively avoiding damage to the workpiece surface during clamping and achieving a balance between high precision and high safety.

[0011] 2. In this utility model, the entire clamping and releasing process is controlled by a single button on an electric push rod, resulting in rapid and accurate action that significantly improves the efficiency of clamping and unloading. Simultaneously, the integrated waste bin design facilitates quick cleaning of processing debris, while the torsion spring mechanism ensures that the clamping unit automatically resets after each release. These features collectively guarantee smooth continuous operation of the tooling, simplify maintenance, and help extend the equipment's service life. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the mounting plate structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the piston structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the limiting plate structure of this utility model.

[0016] The attached figures are labeled as follows: 11. Mounting base; 12. Mounting frame; 13. Plug; 14. Connecting rod; 15. Limiting plate; 16. Torsion spring; 17. Electric push rod; 18. Connecting plate; 19. Piston; 21. Connecting pipe; 22. Step plate; 23. Waste box. Detailed Implementation

[0017] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0018] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0022] Example: like Figures 1-4 As shown in the figure, an embodiment of the present invention proposes a guide groove manufacturing positioning fixture, which includes a mounting base 11, which serves as the basic support platform for the entire fixture. The mounting base 11 is used to place the object for which the guide groove needs to be opened and to provide an environment for the installation of subsequent components.

[0023] When in use, first, according to the size of the object to be guided, start the electric push rod 17. The electric push rod 17, as the core power source, provides precise and controllable linear motion. The electric push rod 17 will push the connecting plate 18 to move. The connecting plate 18 plays the role of force transmission and synchronous linkage, ensuring that the power energy acts on both sides at the same time. The connecting plate 18 will simultaneously drive the two pistons 19 to move. The pistons 19, as pneumatic driving elements, reciprocate in the cylinder to generate pneumatic pressure changes. The two pistons 19 will squeeze the gas inside them into the cylinder through the connecting pipe 21. The inner wall of the mounting frame 12 and the connecting pipe 21 form a closed gas flow channel, ensuring that the pressure is transmitted to the target position without loss. At this time, the plug 13 inside the mounting frame 12 will slowly move to the other end of the mounting frame 12 due to the compression of the gas. The plug 13, as a pneumatic actuator, converts the gas pressure into linear displacement. The connecting rod 14 provided on the side wall of the plug 13 will also extend out of the mounting frame 12. The connecting rod 14, as an extension mechanism, directly transmits the displacement of the plug 13 to the external clamping unit to match the size of the object to be opened. Piston 19 and connecting pipe 21 are connected to mounting frame 12 via mounting bracket. The combination of mounting frame 12 and plug 13 is also equivalent to piston 19, ensuring that gas will not leak during operation and maintaining stable system pressure. Therefore, there is also a relative seal between mounting frame 12 and plug 13, and no gas will escape from the inside of mounting frame 12. The connecting rod 14 is only adjusted according to the approximate size of the object to be slotted, and does not need to match the size of the object to be slotted. It is sufficient that the object to be slotted can rest on the bottom of the limiting plate 15 which is subsequently rotated and installed on the connecting rod 14.

[0024] At this point, the object to be guided is placed on the limiting plate 15, which is rotatably mounted on the connecting rod 14. The limiting plate 15 forms the initial support surface, and its rotational design allows it to adapt to the placement of the object. Because a torsion spring 16 is installed between the limiting plate 15 and the connecting rod 14, the torsion spring 16 provides the initial restoring torque to the limiting plate 15, allowing it to maintain a specific L-shaped preparatory posture in its natural state. Therefore, the initial state of the limiting plate 15 is L-shaped. However, unlike the L-shaped ...

[0025] Once the object requiring a groove is placed on the limiting plate 15, it will continue to descend due to gravity until it contacts the top of the mounting plate 22. The mounting plate 22, as the main load-bearing component, bears most of the object's weight and distributes the force to the mounting base 11, increasing stability. At this point, the limiting plate 15 will flip from both sides towards the center. However, because the object requiring a groove is simply resting on top of the limiting plate 15, the angle of rotation is limited, and it cannot effectively clamp the object. Therefore, the electric push rod 17 needs to be activated again. This second activation of the electric push rod 17 achieves final precision clamping. Through air pressure transmission, it provides a uniform and gentle clamping force, avoiding damage to the object's surface. This causes the connecting rod 14 to again pull the limiting plate 15 towards the center, effectively clamping the object requiring a groove. After the guide groove opening operation is completed, the electric push rod 17 is activated again in reverse to release the pressure and actively release the clamping state, achieving rapid unloading. This allows the gas inside the mounting frame 12 to be drawn back into the piston 19, and the plug head 13 will also return to its original position due to the negative pressure. This causes the limiting plate 15 to move from the middle to both ends, ending the clamping of the object to be opened. Due to the influence of the torsion spring 16, the limiting plate 15 will also rotate 90 degrees from the middle to both sides, returning to its original position. The reset function of the torsion spring 16 ensures that the clamping unit can automatically return to the ready state, preparing for the next operation and improving the efficiency of continuous operation.

[0026] When there is a large amount of waste residue generated by the guide groove inside the mounting base 11, the waste box 23, which is slidably installed inside the mounting base 11, is pulled out. The waste box 23 serves as a separable chip collection container, which facilitates centralized processing of processing waste, keeps the working area clean, pours out the waste residue inside, and then reinstalls it inside the mounting base 11. This effectively prevents the accumulation of waste chips from affecting the tooling accuracy or damaging moving parts, and extends the service life of the equipment.

[0027] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A positioning fixture for manufacturing a guide groove, comprising a mounting base (11), wherein a mounting frame (12) is fixedly mounted above the mounting base (11), characterized in that, A plug (13) is slidably installed inside the mounting frame (12). A connecting rod (14) is fixedly installed on the side wall of the plug (13). A limiting plate (15) is rotatably installed inside the connecting rod (14). A torsion spring (16) is provided between the connecting rod (14) and the limiting plate (15). An electric push rod (17) is provided above the mounting base (11).

2. The positioning fixture for manufacturing a guide groove according to claim 1, characterized in that: A connecting plate (18) is fixedly installed at the output end of the electric push rod (17). A piston (19) is provided on the end of the connecting plate (18) that is connected to the electric push rod (17). There are two pistons (19).

3. The guide groove manufacturing and positioning fixture according to claim 1, characterized in that: A connecting pipe (21) is fixedly installed on the piston (19) relative to the end connected to the connecting plate (18), and the end of the connecting pipe (21) relative to the piston (19) is fixedly installed on the mounting frame (12).

4. The positioning fixture for manufacturing a guide groove according to claim 1, characterized in that: The limiting plate (15) is L-shaped.

5. A positioning fixture for manufacturing guide grooves according to claim 1, characterized in that: A mounting plate (22) is fixedly installed above the mounting base (11).

6. The positioning fixture for manufacturing a guide groove according to claim 1, characterized in that: The waste box (23) is slidably installed inside the mounting base (11).