High-precision cavity tooling clamp

CN224896554UActive Publication Date: 2026-10-27LANGFANG ZHANXIANG PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202522357368.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-06
Publication Date
2026-10-27
Estimated Expiration
2035-11-06

AI Technical Summary

Technical Problem

[0003]现有的工装夹具在使用时存在一定的弊端,首先,现有的不管是加工圆孔还是方槽,都是用小平口钳加紧装夹的,这种装夹方式会占用很多的架模时间,如扫表、看火花、碰数等,平均每件两次架模时间加起来大概30分钟,而且工件想要夹紧不松动,极容易夹伤工件或者把工件夹变形,给实际的使用过程带来了一定的不利影响,为此,我们提出一种高精度腔体工装夹具

Benefits of technology

[0011]有益效果:与现有技术相比,本实用新型提供了一种高精度腔体工装夹具,具备以下有益效果:该一种高精度腔体工装夹具,设置槽体结构,将工件直接放置到槽体内部,并在槽体外侧设置限位工件的定位件,不会损伤工件,在装夹的夹具槽体与工件接触的位置设置充气气囊,腔体组件放入夹具槽体内部后,充气气囊充气,保护腔体组件表面的位置,同时增加夹紧的效果,工件加工时更为稳定,整个腔体工装夹具结构简单,操作方便,使用的效果相对于传统方式更好。

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Abstract

The utility model discloses a high accuracy cavity frock clamp, including clamp main part, the upper end of clamp main part is equipped with cavity groove, one end in -side of cavity groove is provided with clamping plate, and the work piece is placed in the in -side of cavity groove, and the position between cavity groove and work piece is positioned with inflatable air bag, first limit subassembly and second limit subassembly are installed respectively in the position of cavity groove diagonal position on clamp main part. The utility model discloses a high accuracy cavity frock clamp sets up groove body structure, places work piece directly to the inside of groove body, and sets up the positioner of limiting work piece on the outside of groove body, will not damage work piece, sets up inflatable air bag in the position of frock groove and work piece contact of clamping, after cavity subassembly is put into the inside of frock groove, inflatable air bag inflates, protects the position of cavity subassembly surface, increases the effect of clamping simultaneously, and work piece processing is more stable.
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Description

Technical Field

[0001] This utility model relates to the field of cavity tooling technology, and in particular to a high-precision cavity tooling fixture. Background Technology

[0002] Cavity tooling fixtures are support devices for quickly clamping and positioning workpieces. With fierce competition in the machining industry, improving processing efficiency is the key to reducing costs and increasing profits in order to gain an advantage in terms of price. Improvements in process tooling can effectively improve production efficiency and product quality. With the continuous development of technology, people's requirements for cavity tooling fixtures are also getting higher and higher.

[0003] Existing tooling fixtures have certain drawbacks in use. First, whether machining round holes or square slots, they are all clamped with small flat-nose pliers. This clamping method takes up a lot of time for setting up the mold, such as scanning the dial indicator, checking the sparks, and measuring the dimensions. On average, the mold setting time for each piece is about 30 minutes. Moreover, it is very easy to damage or deform the workpiece if it is clamped tightly without loosening, which has a certain adverse effect on the actual use process. Therefore, we propose a high-precision cavity tooling fixture. Utility Model Content

[0004] Technical Problem Solved: To address the shortcomings of existing technologies, this utility model provides a high-precision cavity tooling fixture. It features a groove structure, allowing the workpiece to be placed directly inside the groove. Positioning components that limit the workpiece's position are located on the outside of the groove, preventing damage. An inflatable airbag is placed at the contact point between the fixture groove and the workpiece. After the cavity assembly is placed inside the fixture groove, the airbag inflates, protecting the surface of the cavity assembly and increasing the clamping effect. This makes the workpiece more stable during processing and effectively solves the problems in the background technology.

[0005] Technical solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-precision cavity tooling fixture, including a fixture body, a cavity groove is provided at the upper end of the fixture body, a clamping plate is provided on the inner side of one end of the cavity groove, a workpiece is placed inside the cavity groove, an inflatable airbag is positioned between the cavity groove and the workpiece, and a first limiting component and a second limiting component are respectively installed on the fixture body at diagonal positions of the cavity groove.

[0006] Preferably, a threaded rod is connected to the side of the clamping plate, and a locking bolt is positioned at the end of the threaded rod. A bearing is provided between the threaded rod and the clamping plate. The locking bolt is located on the outside of the clamping body. Both the first limiting component and the second limiting component have waist-shaped grooves, and limiting bolts are positioned on the waist-shaped grooves.

[0007] Preferably, the inner surface of the inflatable airbag is provided with an anti-slip protective sleeve, the inflatable airbag is provided with air holes, the air holes are connected to air tubes, and the end of the air tubes is connected to an air pump.

[0008] Preferably, the locking bolt, threaded rod, and bearing lock and position the clamping plate, and the first limiting component, waist groove, and limiting bolt lock and position the upper end of the workpiece.

[0009] Preferably, the air pump controls the inflation and deflation of the inflatable airbag through air pipes and air holes, the inflatable airbag is bonded and positioned with the anti-slip protective sleeve, and the inflatable airbag seals and positions the workpiece.

[0010] Preferably, the workpiece is engaged inside the cavity groove and is pressed and limited by a clamping plate, an inflatable airbag, a first limiting component, and a second limiting component.

[0011] Beneficial Effects: Compared with the prior art, this utility model provides a high-precision cavity tooling fixture with the following beneficial effects: This high-precision cavity tooling fixture is equipped with a groove structure, allowing the workpiece to be placed directly inside the groove. A positioning component is set on the outside of the groove to limit the workpiece, preventing damage to the workpiece. An inflatable airbag is set at the contact position between the clamping fixture groove and the workpiece. After the cavity component is placed inside the clamping groove, the inflatable airbag inflates, protecting the surface of the cavity component and increasing the clamping effect. The workpiece is more stable during processing. The entire cavity tooling fixture has a simple structure, is easy to operate, and performs better than traditional methods. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a high-precision cavity tooling fixture according to the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of an inflatable airbag in a high-precision cavity tooling fixture of this utility model.

[0014] Figure 3 This is a schematic diagram of the clamping plate in a high-precision cavity tooling fixture of this utility model.

[0015] Figure 4 This is a structural schematic diagram of point A in a high-precision cavity tooling fixture of this utility model.

[0016] In the diagram: 1. Fixture body; 2. Clamping plate; 3. First limiting component; 4. Workpiece; 5. Inflatable airbag; 6. Cavity groove; 7. Second limiting component; 8. Locking bolt; 9. Anti-slip protective sleeve; 10. Air hole; 11. Air pipe; 12. Air pump; 13. Waist hole groove; 14. Limiting bolt; 15. Threaded rod; 16. Bearing. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-4 As shown, a high-precision cavity tooling fixture includes a fixture body 1. A cavity groove 6 is formed at the upper end of the fixture body 1. A clamping plate 2 is provided on the inner side of one end of the cavity groove 6. A workpiece 4 is placed inside the cavity groove 6. An inflatable airbag 5 is positioned between the cavity groove 6 and the workpiece 4. A first limiting component 3 and a second limiting component 7 are respectively installed on the fixture body 1 at diagonal positions of the cavity groove 6. The groove structure allows the workpiece to be placed directly into the groove. Positioning components that limit the workpiece are provided on the outer side of the groove, preventing damage to the workpiece. An inflatable airbag is provided at the contact position between the clamped fixture groove and the workpiece. After the cavity component is placed inside the fixture groove, the inflatable airbag inflates, protecting the surface of the cavity component and increasing the clamping effect, making the workpiece more stable during processing.

[0021] Furthermore, a threaded rod 15 is connected to the side of the clamping plate 2, and a locking bolt 8 is positioned at the end of the threaded rod 15. A bearing 16 is provided between the threaded rod 15 and the clamping plate 2. The locking bolt 8 is located on the outside of the fixture body 1. Both the first limiting component 3 and the second limiting component 7 are provided with waist holes 13, and a limiting bolt 14 is positioned on the waist holes 13.

[0022] Furthermore, the inner surface of the inflatable airbag 5 is provided with an anti-slip protective sleeve 9, and the inflatable airbag 5 is provided with an air hole 10, which is connected to an air tube 11, and the end of the air tube 11 is connected to an air pump 12.

[0023] Furthermore, the locking bolt 8, threaded rod 15, and bearing 16 lock and position the clamping plate 2, while the first limiting component 3, waist groove 13, and limiting bolt 14 lock and position the upper end of the workpiece 4.

[0024] Furthermore, the air pump 12 controls the inflation and deflation of the inflatable airbag 5 through the air pipe 11 and the air hole 10. The inflatable airbag 5 is bonded and positioned with the anti-slip protective sleeve 9, and the inflatable airbag 5 seals and positions the workpiece 4.

[0025] Furthermore, the workpiece 4 is engaged inside the cavity groove 6 and is pressed and limited by the clamping plate 2, the inflatable airbag 5, the first limiting component 3 and the second limiting component 7.

[0026] Comparative example:

[0027] The existing clamping method takes up a lot of mold-setting time, such as scanning the table, checking the sparks, and counting the parts. On average, the mold-setting time for each part is about 30 minutes in total.

[0028] The clamping method described in this application, involving two-stage clamping, takes a total of 8 minutes, with a processing time of 4.5 hours per piece. Compared to the previous method, this results in a total saving of 22 minutes of clamping time per piece. The efficiency improvement is 7.3%, which enhances workpiece positioning accuracy, shortens clamping time, increases processing speed, and improves machine tool utilization and processing flexibility.

[0029] Working principle: This utility model includes a fixture body 1, a clamping plate 2, a first limiting component 3, a workpiece 4, an inflatable airbag 5, a cavity groove 6, a second limiting component 7, a locking bolt 8, an anti-slip protective sleeve 9, an air hole 10, an air pipe 11, an air pump 12, a waist hole groove 13, a limiting bolt 14, a threaded rod 15, and a bearing 16. The groove structure allows the workpiece to be placed directly inside the groove. Positioning components that limit the workpiece are located on the outside of the groove, preventing damage. An inflatable airbag is placed at the contact point between the clamping groove and the workpiece. After the cavity component is placed inside the clamping groove, the inflatable airbag inflates, protecting the surface of the cavity component and increasing the clamping effect, making the workpiece more stable during processing.

[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-precision cavity tooling fixture, comprising a fixture body (1), characterized in that: The upper end of the fixture body (1) is provided with a cavity groove (6), a clamping plate (2) is provided on the inner side of one end of the cavity groove (6), a workpiece (4) is placed inside the cavity groove (6), an inflatable airbag (5) is positioned between the cavity groove (6) and the workpiece (4), and a first limiting component (3) and a second limiting component (7) are respectively installed on the fixture body (1) at the diagonal positions of the cavity groove (6).

2. The high-precision cavity tooling fixture according to claim 1, characterized in that: The clamping plate (2) is connected to a threaded rod (15) on its side. A locking bolt (8) is positioned at the end of the threaded rod (15). A bearing (16) is provided between the threaded rod (15) and the clamping plate (2). The locking bolt (8) is located on the outside of the fixture body (1). The first limiting component (3) and the second limiting component (7) are both provided with waist holes (13). A limiting bolt (14) is positioned on the waist holes (13).

3. The high-precision cavity tooling fixture according to claim 1, characterized in that: The inner surface of the inflatable airbag (5) is provided with an anti-slip protective sleeve (9), and the inflatable airbag (5) is provided with an air hole (10). The air hole (10) is connected to an air tube (11), and the end of the air tube (11) is connected to an air pump (12).

4. A high-precision cavity tooling fixture according to claim 2, characterized in that: The locking bolt (8), threaded rod (15), and bearing (16) lock and position the clamping plate (2), and the first limiting component (3), waist hole groove (13), and limiting bolt (14) lock and position the upper end of the workpiece (4).

5. A high-precision cavity tooling fixture according to claim 3, characterized in that: The air pump (12) controls the inflation and deflation of the inflatable airbag (5) through the air pipe (11) and the air hole (10). The inflatable airbag (5) is bonded and positioned with the anti-slip protective sleeve (9). The inflatable airbag (5) seals and positions the workpiece (4).

6. A high-precision cavity tooling fixture according to claim 1, characterized in that: The workpiece (4) is engaged inside the cavity groove (6) and is pressed and limited by the clamping plate (2), the inflatable airbag (5), the first limiting component (3) and the second limiting component (7).