Special-shaped fixing tool

Abstract

The utility model discloses a special-shaped fixing tool, including fixed frame and a plurality of fixed card, be equipped with a plurality of fixed beam in fixed frame, the both ends of fixed beam and fixed frame inboard slide fit, still be equipped with the fastener of fastening fixed beam to each fixed beam end portion on fixed frame, be equipped with the mounting screw hole of interval arrangement on fixed beam, the pre -tightening bolt of being able to with mounting screw hole thread cooperation is movably provided on fixed card, and the cam handle for fastening fixed card is rotatably connected to pre -tightening bolt upper end.

Description

Technical Field

[0001] This utility model relates to the field of production line tooling, specifically to an irregularly shaped fixed tooling. Background Technology

[0002] In fields such as machinery manufacturing, automotive parts processing, and aerospace component production, the demand for processing irregularly shaped workpieces (such as irregular curved surfaces, multi-protrusion structural parts, and asymmetrical frame parts) is increasing. Because these workpieces lack standardized shapes, they require precise fixing using tooling fixtures during processing to ensure accuracy in milling, drilling, welding, and other procedures.

[0003] Existing fixtures for irregularly shaped workpieces generally suffer from core defects such as strong reliance on customization and poor versatility, severely restricting production efficiency and cost control. Specific problems include: Most existing fixtures are custom-designed for a specific irregular shape; that is, a fixed structure is designed separately for a particular workpiece size, and the entire fixture must be replaced when the workpiece model is changed. Customizing a set of irregularly shaped fixtures requires processes such as design, material procurement, processing, and debugging. When the workpiece is discontinued or updated, the old fixtures become obsolete, resulting in waste of materials and processing costs. Furthermore, frequent handling of heavy fixtures requires additional manpower, indirectly increasing labor costs. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an irregularly shaped fixing fixture that can flexibly adjust the fixing position for irregularly shaped fixtures of different specifications, so as to meet the fixing of fixtures of different specifications, thereby reducing production costs and improving production efficiency.

[0005] The technical solution adopted by this utility model is as follows: an irregularly shaped fixing fixture, including a fixing frame and several fixing clips, a number of fixing beams are provided inside the fixing frame, the two ends of the fixing beams are slidably engaged with the inner side of the fixing frame, and fasteners for fastening the fixing beams are provided on the fixing frame corresponding to the ends of each fixing beam. The fixing beams are provided with spaced mounting screw holes; a pre-tightening bolt that can be threaded into the mounting screw hole is movably passed through the fixing clip, and a cam handle for fastening the fixing clip is rotatably connected to the upper end of the pre-tightening bolt.

[0006] This technical solution is used to fix irregularly shaped workpieces. The fixing beam, which is slidably set inside the fixing frame, can be adjusted to the required fixing position. After the fixing beam is moved to the fixed position, the two ends of the fixing beam are fixed by fasteners to keep the fixing beam in a stable position. The fixing clip is installed on the outside of the workpiece corresponding to the fixing beam by pre-tightening bolts. After the front end of the fixing clip presses against the edge of the workpiece, the cam handle is rotated downward to apply a downward fixing force to the workpiece. Under the action of multiple fixing clips, the workpiece is fixed at various positions. During use, it can be flexibly adjusted according to the specifications of the workpiece, so as to meet the fixing needs of various irregularly shaped workpieces of different specifications.

[0007] Preferably, the outer side of the fixed frame is provided with an adjusting groove that penetrates the inner sidewall of the fixed frame, and the fastener passes horizontally through the adjusting groove and is threadedly connected to the end of the fixed beam.

[0008] Preferably, the fixed frame is further provided with a base plate located below the fixed beam, and the base plate is further provided with a detachable fixed seat, and the pre-tightening bolt of the fixed clip can be threadedly connected to the upper end of the fixed seat.

[0009] Preferably, the fixing clip is provided with a strip groove for movably installing the pre-tightening bolt, and the strip groove is arranged along the length of the fixing clip.

[0010] Preferably, the pre-tightening bolt is fitted with an isolation pad located between the upper end of the fixing clip and the cam handle.

[0011] Preferably, it also includes an installation mechanism, which includes an installation frame located below the fixed frame and detachably connected to the fixed frame, with several anti-slip support feet at the bottom of the installation frame.

[0012] The beneficial effects of this utility model are as follows: Several fixing beams within the fixing frame can slide along the inner side of the fixing frame and be locked in any position by fasteners. The spacing between the fixing beams can be flexibly adjusted according to the length and width of the irregular workpiece. At the same time, the fixing clips can flexibly select the installation hole positions according to the workpiece fixing point positions, further adapting to the irregular structure of the workpiece with local protrusions and depressions, ensuring that the fixing points accurately fit the workpiece surface. There is no need to customize special tooling for different models, the number of tooling is greatly reduced, and storage and management costs are significantly reduced. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a perspective view of the irregularly shaped fixing fixture provided in the embodiments of this utility model.

[0015] Figure 2 This is a schematic diagram of the fixing of the irregular-shaped fixing fixture provided in the embodiment of this utility model.

[0016] Reference numerals in the attached drawings: fixed frame 100, adjusting slide 110, fixing clip 200, strip groove 210, fixed beam 300, mounting screw hole 310, fastener 400, pre-tightening bolt 500, cam handle 600, base plate 700, fixing seat 800, isolation pad 900, mounting frame 1000, anti-slip support foot 1100, workpiece 1200. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0019] like Figure 1 and Figure 2 As shown in the figure, a specific embodiment of this utility model provides an irregularly shaped fixing fixture, including a fixing frame 100 and a plurality of fixing clips 200. The fixing frame 100 is provided with a plurality of fixing beams 300. The two ends of the fixing beams 300 are slidably engaged with the inner side of the fixing frame 100. The fixing frame 100 is also provided with fasteners 400 for fastening the fixing beams 300 at their respective ends. The fixing beams 300 are provided with spaced mounting screw holes 310. The fixing clips 200 are movably provided with pre-tightening bolts 500 that can be threaded into the mounting screw holes 310. The upper end of the pre-tightening bolts 500 is rotatably connected to a cam handle 600 for fastening the fixing clips 200.

[0020] like Figure 1 and Figure 2 As shown, the tooling structure provided in this embodiment is used to fix the irregularly shaped workpiece 1200. The fixing beam 300, which is slidably arranged inside the fixing frame 100, can be slidably adjusted to the required fixing position. After the fixing beam 300 is moved to the fixed position, the two ends of the fixing beam 300 are fixed by fasteners 400 to keep the position of the fixing beam 300 stable. The fixing clip 200 is installed on the outside of the workpiece 1200 corresponding to the fixing beam 300 by pre-tightening bolts 500. After the front end of the fixing clip 200 presses against the edge of the workpiece 1200, the cam handle 6 is rotated downwards. The fixing clip 200 can apply a downward fixing force to the workpiece 1200. Under the action of multiple fixing clips 200, the workpiece 1200 is fixed at various positions. Several fixing clips 200 can be distributed at different positions of the fixing beam 300 to implement multi-point fixing from the edge and protrusion of the workpiece 1200 (such as 3-6 fixing clips 200), forming a stable force balance, preventing the workpiece 1200 from shifting due to processing vibration, and making the processing accuracy error controllable. It can be flexibly adjusted according to the specifications of the workpiece 1200, thereby meeting the fixing of various irregularly shaped workpieces 1200 with different specifications.

[0021] like Figure 1 and Figure 2As shown, to facilitate the adjustment and fixation of the various fixed beams 300, this embodiment provides an adjusting groove 110 that penetrates the inner wall of the fixed frame 100 on the outer side of the fixed frame 100. Fasteners 400 pass horizontally through the adjusting groove 110 and are threadedly connected to the ends of the fixed beams 300. The adjusting groove 110, in conjunction with the fasteners 400 (such as wing nuts), allows for manual and quick tightening of the fasteners 400 to lock the fixed beams 300 without the need for tools, significantly improving efficiency compared to the disassembly-installation process of traditional tooling.

[0022] like Figure 1 and Figure 2 As shown, this embodiment also includes a base plate 700 located below the fixed beam 300 within the fixed frame 100. A detachable fixing seat 800 is provided on the base plate 700, and the pre-tightening bolt 500 of the fixing clip 200 can be threadedly connected to the upper end of the fixing seat 800. The base plate 700 within the fixed frame 100 provides bottom support for the fixing seat 800. The detachable fixing seat 800 can be height adjusted according to the bottom structure of the workpiece 1200 to avoid uneven stress caused by the bottom of the workpiece 1200 being suspended. Simultaneously, the pre-tightening bolt 500 of the fixing clip 200 can be threadedly connected to the fixing seat 800 and can also be used to fix the workpiece 1200.

[0023] like Figure 1 As shown, in this embodiment, the fixing card 200 is provided with a strip groove 210 for the movable installation of the pre-tightening bolt 500. The strip groove 210 is arranged along the length of the fixing card 200, so that the contact length between the fixing card 200 and the workpiece 1200 can be adjusted to meet the requirements of different workpiece 1200 fixing positions.

[0024] like Figure 2 As shown, a spacer 900 is fitted on the preload bolt 500 between the upper end of the fixing clip 200 and the cam handle 600. The spacer 900 on the preload bolt 500 can be made of rubber, which can increase the friction between the cam handle 600 and the fixing clip 200, prevent the cam handle 600 from loosening due to processing vibration, and further ensure the reliability of the fixation.

[0025] like Figure 1 As shown, this embodiment also provides an installation mechanism, which includes an installation frame 1000 located below the fixed frame 100 and detachably connected to the fixed frame 100. The bottom of the installation frame 1000 is provided with several anti-slip support feet 1100. The fixed frame 100 and the installation frame 1000 are detachably connected, and the fixing method (such as bolt fixing or clamp fixing) of the installation frame 1000 can be adjusted according to the worktable size of the processing equipment (such as milling machine or drilling machine) to adapt to different models of processing equipment. The anti-slip support feet 1100 at the bottom of the installation frame 1000 can increase the friction with the worktable and prevent the tooling from sliding due to processing force, adapting to high-load processing scenarios.

[0026] In practical applications, the overall structure and material selection are as follows: The fixing frame 100 is made of alloy material and has a rectangular frame structure. Two rectangular grooves are opened along the length of the inner wall of the fixing frame 100 for sliding engagement with the ends of the fixing beam 300. Corresponding to each groove, a through-type adjusting groove 110 is opened on the outer side of the fixing frame 100 to accommodate the sliding and locking of the fastener 400. The fixing beam 300 is a metal structure with screw holes at both ends and the top for the installation of the fastener 400 and the pre-tightening bolt 500. The fixing clip 200 is made of Q235 steel plate, and the pre-tightening bolt 500 is a stainless steel bolt with external threads at the lower end (fitting to the mounting screw hole 310 or the fixing seat 800). The upper end is rotatably connected to the cam handle 600 via a deep groove ball bearing, ensuring that the bolt does not move when the cam rotates. The cam handle 600 is made of nylon and provides fixing pressure when rotated and pressed down. The base plate 700 is made of stainless steel and is detachably connected to the bottom of the fixed frame 100 by bolts; the mounting frame 1000 is an alloy rectangular frame with four anti-slip support feet 1100 at the bottom. The bottom of the support feet is pressed with diamond anti-slip texture to increase friction.

[0027] In summary, the tooling structure in this embodiment, through its modular and adjustable design, achieves efficient and stable fixing of workpieces of different specifications and shapes, fully meeting the requirements of the machining field for tooling that is universal, fast, and reliable.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An irregularly shaped fixing fixture, characterized in that; It includes a fixed frame (100) and several fixed clips (200). The fixed frame (100) is provided with several fixed beams (300). The two ends of the fixed beams (300) are slidably engaged with the inner side of the fixed frame (100). The fixed frame (100) is also provided with fasteners (400) for fastening the fixed beams (300) at the ends of each fixed beam (300). The fixed beams (300) are provided with spaced mounting screw holes (310). The fixing clip (200) is movably provided with a pre-tightening bolt (500) that can be threaded into the mounting screw hole (310), and the upper end of the pre-tightening bolt (500) is rotatably connected to a cam handle (600) for fastening the fixing clip (200).

2. The irregularly shaped fixing fixture according to claim 1, characterized in that; The outer side of the fixed frame (100) is provided with an adjusting groove (110) that penetrates the inner sidewall of the fixed frame (100). The fastener (400) passes horizontally through the adjusting groove (110) and is threadedly connected to the end of the fixed beam (300).

3. The irregularly shaped fixing fixture according to claim 1, characterized in that; The fixed frame (100) is also provided with a base plate (700) located below the fixed beam (300), and the base plate (700) is also provided with a detachable fixed seat (800), and the pre-tightening bolt (500) of the fixed clip (200) can be threadedly connected to the upper end of the fixed seat (800).

4. The irregularly shaped fixing fixture according to claim 1, Its characteristics are: The fixing clip (200) is provided with a strip groove (210) for the movable installation of the pre-tightening bolt (500), and the strip groove (210) is arranged along the length of the fixing clip (200).

5. The irregularly shaped fixing fixture according to claim 1, characterized in that; The pre-tightening bolt (500) is fitted with an isolation pad (900) located between the upper end of the fixing clip (200) and the cam handle (600).

6. The irregularly shaped fixing fixture according to any one of claims 1-5, characterized in that... ； It also includes an installation mechanism, which includes an installation frame (1000) located below the fixed frame (100) and detachably connected to the fixed frame (100), and the bottom of the installation frame (1000) is provided with several anti-slip support feet (1100).

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