A positioning tool

Abstract

The application relates to the technical field of production auxiliary equipment, and provides a positioning tool, which comprises a base, a driving piece, a lifting piece, a fixing seat and a clamping piece, the lifting piece is arranged on the base and can move up and down, the driving piece is connected with the lifting piece and is used for controlling the lifting piece to lift and fall; the fixing seat is arranged on the base, and a workpiece is arranged on the fixing seat; the clamping piece is rotatably connected to the fixing seat and is hinged with the lifting piece, the lifting piece is used for controlling the clamping piece to swing, and the clamping piece is used for pressing on an inner edge of the workpiece. The application has the effect of conveniently positioning and clamping the workpiece.

Description

Technical Field

[0001] This application relates to the field of production auxiliary equipment technology, and in particular to a positioning tooling. Background Technology

[0002] In the field of precision machining, accurate workpiece positioning is a crucial step in ensuring machining accuracy and product quality. The proper use of positioning fixtures can effectively reduce machining errors and significantly improve production efficiency. Currently, the method of using cylinders to directly clamp the workpiece externally for positioning is extremely common in various machining scenarios. Its working principle relies on the stable mechanical force output by the cylinder to firmly fix the workpiece in a predetermined position, thus providing a stable foundation for subsequent machining processes such as cutting, drilling, and grinding. This method is widely used in industries such as parts manufacturing and metal production.

[0003] like Figure 1 The workpiece shown is a rectangular, hollow shell with an inner edge on its inner wall, circumferentially oriented. During production, the outer side of the rectangular shell requires precision machining. However, the workpiece cannot be directly clamped by a cylinder during positioning, and existing positioning fixtures have limitations. Therefore, a fixture capable of clamping the workpiece internally is needed, taking into account its internal structure. Utility Model Content

[0004] To facilitate the positioning and clamping of workpieces, this application provides a positioning fixture.

[0005] The positioning fixture provided in this application adopts the following technical solution: A positioning fixture includes a base, a drive component, a lifting component, a fixed seat, and a clamping component. The lifting component is movable up and down on the base. The drive component is connected to the lifting component and is used to control the lifting component's movement. The fixed seat is located on the base, and the workpiece is placed on the fixed seat. The clamping component is rotatably connected to the fixed seat and hinged to the lifting component. The lifting component is used to control the clamping component's swing, and the clamping component is used to press against the inner edge of the workpiece.

[0006] By adopting the above technical solution, when a rectangular shell needs to be processed, the operator first places the workpiece on the fixed seat, and then runs the drive unit, which controls the lifting component to move up and down. When the lifting component rises, it causes the clamping component to swing, so that the end of the clamping component away from the lifting component presses against the inner edge of the workpiece, thereby achieving workpiece clamping and positioning.

[0007] When the lifting component descends, it will also cause the clamping component to swing, thereby removing the pressure on the workpiece from the end of the clamping component away from the lifting component, making it easier for the staff to remove the workpiece from the fixed seat.

[0008] Preferably, the driving component is a cylinder, a hydraulic cylinder, or an electric push rod.

[0009] By adopting the above technical solutions, cylinders, hydraulic cylinders, or electric push rods can all be used to control the up and down movement of the lifting components.

[0010] Preferably, there are several clamping members, each of which is connected to the lifting member and is used together to clamp the workpiece.

[0011] By adopting the above technical solution, multiple clamping components clamp the workpiece together, achieving multi-point fixation of the workpiece, improving the stability of the workpiece on the fixed seat, and ensuring machining accuracy.

[0012] Preferably, the base has a plurality of fixed seats spaced apart, and each fixed seat is provided with the lifting component and the clamping component.

[0013] By adopting the above technical solution, multiple fixed seats can position multiple workpieces.

[0014] Preferably, the pressing surface of the clamping member is provided with a rubber layer.

[0015] By adopting the above technical solution, on the one hand, the rubber layer is elastic, which can achieve flexible contact between the clamping component and the workpiece, reducing damage to the workpiece. On the other hand, the rubber layer is a polymer material, which can increase the static friction between the clamping component and the workpiece, thereby improving the firmness of the workpiece when it is clamped.

[0016] Preferably, the base also includes mounting strips, which are located on both sides of the base. Each mounting strip has a mounting groove, which is parallel to each other. The mounting grooves are used to cooperate with a CNC machining center.

[0017] By adopting the above technical solution, the mounting slot is used to fix the entire base to the equipment, such as a CNC machining center or other automated processing equipment.

[0018] Preferably, the mounting strip is detachably connected to the base by fasteners, which are fastening bolts or fastening screws.

[0019] By adopting the above technical solution, the fastening bolts or screws are detachable components, which can achieve a detachable connection between the mounting strip and the base.

[0020] Preferably, the fixed base is provided with a limiting protrusion ring, which is used to abut against the inner sidewall of the workpiece; the fixed base is also provided with a relief groove, which is used to accommodate the extension plate on the workpiece.

[0021] By adopting the above technical solution, the workpiece can be clamped on the limiting protrusion ring to achieve initial positioning, and then the clamping component is used to press the workpiece tightly to complete the fixation of the workpiece.

[0022] In summary, this application includes at least one of the following beneficial technical effects: (1) By setting up a drive unit, a lifting unit, a fixed seat and a clamping unit, when it is necessary to process a rectangular shell, the operator first places the workpiece on the fixed seat, and then runs the drive unit, which controls the lifting unit to move up and down. When the lifting unit rises, it will drive the clamping unit to swing, so that the end of the clamping unit away from the lifting unit is pressed against the inner edge of the workpiece, thereby realizing the clamping and positioning of the workpiece.

[0023] (2) By setting a rubber layer, the rubber layer can reduce damage to the workpiece on the one hand, and increase the static friction between the clamping parts and the workpiece on the other hand, thereby improving the firmness of the workpiece when it is clamped. (3) By setting a limiting protrusion, the workpiece can be stuck on the limiting protrusion to achieve preliminary positioning. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the rectangular shell structure in the background art of this application; Figure 2 This is a schematic diagram of the positioning tooling in the embodiments of this application; Figure 3 This is a partial structural schematic diagram of the positioning tooling in the embodiments of this application; Figure 4 This is a schematic diagram of the structure in which the workpiece is pressed against the positioning fixture in the embodiment of this application.

[0025] Reference numerals in the attached drawings: 1. Base; 2. Drive component; 3. Lifting component; 4. Fixed seat; 5. Clamping component; 6. Limiting protrusion; 7. Relief groove; 8. Mounting strip; 9. Mounting groove. Detailed Implementation

[0026] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0027] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0030] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0031] This application discloses a positioning fixture. (Refer to...) Figures 2 to 3 The positioning fixture includes a base 1, a drive component 2, a lifting component 3, a fixed base 4, and a clamping component 5. The base 1 serves as a supporting carrier, and the lifting component 3, which is movable up and down on the base 1, is block-shaped. The drive component 2 is connected to the lifting component 3 and is used to control the lifting of the lifting component 3. The drive component 2 is a common actuator such as a cylinder, hydraulic cylinder, or electric actuator; in this embodiment, the drive component 2 is a cylinder, and the piston rod of the cylinder is fixedly connected to the lifting component 3.

[0032] The fixed base 4 is fixedly connected to the base 1, and the workpiece is placed on the fixed base 4. The clamping member 5 is rotatably connected to the fixed base 4. One end of the clamping member 5 is hinged to the lifting member 3, and the other end is used to press against the inner edge of the workpiece. The lifting member 3 is used to control the swing of the clamping member 5. When the lifting member 3 moves up and down, it will drive the clamping member 5 to rotate. There are two clamping members 5 spaced apart. Both clamping members 5 are hinged to the lifting member 3 and are used together to clamp the workpiece.

[0033] Combination Figure 4 When machining a rectangular shell, the operator first places the workpiece on the fixed base 4, then operates the drive unit 2, which controls the lifting unit 3 to move up and down. As the lifting unit 3 rises, it causes the clamping unit 5 to swing, thus pressing the end of the clamping unit 5 away from the lifting unit 3 against the inner edge of the workpiece, achieving workpiece clamping and positioning. Multiple clamping units 5 work together to press against the workpiece, achieving multi-point positioning, improving the stability and accuracy of workpiece machining, and ensuring production quality.

[0034] When the drive unit 2 controls the lifting unit 3 to descend, it will also drive the clamping unit 5 to swing, thereby removing the pressure on the workpiece from the end of the clamping unit 5 away from the lifting unit 3, making it easier for the staff to remove the processed workpiece from the fixed seat 4.

[0035] Specifically, the fixed base 4 is also integrally connected with a limiting protrusion 6, which abuts against the inner wall of the workpiece. The workpiece is clamped onto the limiting protrusion 6, thereby achieving the pre-positioning of the workpiece. Then, the clamping member 5 is used to press the workpiece to complete the fixation of the workpiece. The fixed base 4 is also provided with a relief groove 7, which is used to accommodate the extension plate on the workpiece.

[0036] In this embodiment, a plurality of fixed seats 4 are spaced apart on the base 1, and each fixed seat 4 is equipped with a lifting member 3 and a clamping member 5 for positioning multiple workpieces. In some embodiments, the pressing surface of the clamping member 5 is further provided with a rubber layer (not shown in the figure), which is used to contact the inner edge of the workpiece. On the one hand, the rubber layer is elastic, which can achieve flexible contact between the clamping member 5 and the workpiece, reducing damage to the workpiece. On the other hand, the rubber layer is a polymer material, which can increase the static friction between the clamping member 5 and the workpiece, thereby improving the firmness of the workpiece when it is clamped.

[0037] In addition, mounting strips 8 can be detachably connected to both sides of the base 1. The mounting strips 8 are detachably connected to the base 1 by fasteners, such as bolts or screws. Each mounting strip 8 has a mounting groove 9, which is parallel to each other. The mounting grooves 9 are used to cooperate with a CNC machining center to fix the entire base 1 to the equipment.

[0038] The implementation principle of a positioning fixture in this embodiment is as follows: When processing a rectangular shell, the operator first places the workpiece to be processed on the limiting protrusion 6 of the fixed base 4 for pre-positioning. Then, the drive unit 2 is activated, which precisely controls the lifting unit 3 to move vertically. When the lifting unit 3 moves upward, it causes the connected clamping unit 5 to swing, thereby tightly pressing the end of the clamping unit 5 away from the lifting unit 3 against the inner edge of the workpiece. This achieves firm clamping and precise positioning of the workpiece, ensuring its stability during processing.

[0039] When the processing is completed and the workpiece needs to be removed, the lifting component 3 is moved downward. At this time, the lifting component 3 will also drive the clamping component 5 to swing, so that the end of the clamping component 5 away from the lifting component 3 is relieved of the pressure on the workpiece, providing convenient conditions for the staff to remove the workpiece from the fixed seat 4.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning fixture, characterized by, The device includes a base (1), a drive unit (2), a lifting unit (3), a fixed seat (4), and a clamping unit (5). The lifting unit (3) is movable up and down on the base (1). The drive unit (2) is connected to the lifting unit (3) and is used to control the lifting unit (3) to move up and down. The fixed seat (4) is located on the base (1), and the workpiece is placed on the fixed seat (4). The clamping unit (5) is rotatably connected to the fixed seat (4) and is hinged to the lifting unit (3). The lifting unit (3) is used to control the clamping unit (5) to swing. The clamping unit (5) is used to press on the inner edge of the workpiece.

2. The positioning tool of claim 1, wherein The driving component (2) is a cylinder, a hydraulic cylinder, or an electric push rod.

3. The positioning tool of claim 1, wherein The clamping member (5) is provided in several parts, and each clamping member (5) is connected to the lifting member (3) and is used together to clamp the workpiece.

4. The positioning tool of claim 1, wherein The base (1) has several fixed seats (4) spaced apart, and each fixed seat (4) is provided with a lifting member (3) and a clamping member (5).

5. A positioning fixture according to claim 1, characterized in that, The clamping surface of the clamp (5) is provided with a rubber layer.

6. A positioning fixture according to claim 1, characterized in that, It also includes mounting strips (8), which are located on both sides of the base (1). Each mounting strip (8) has a mounting groove (9) which is parallel to each other. The mounting groove (9) is used to cooperate with a CNC machining center.

7. A positioning fixture according to claim 6, characterized in that, The mounting strip (8) is detachably connected to the base (1) by fasteners, which are fastening bolts or fastening screws.

8. A positioning fixture according to claim 1, characterized in that, The fixed seat (4) is provided with a limiting protrusion (6), which is used to abut against the inner side wall of the workpiece; the fixed seat (4) is also provided with a relief groove (7), which is used to accommodate the extension plate on the workpiece.

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