A CNC tooling fixture

Abstract

The utility model relates to a kind of CNC tooling fixture, including fixture base body and support platform, at least one positioning slot for accommodating and positioning workpiece is set on the side wall of the fixture base body, the support platform is connected to the bottom of the fixture base body, the upper surface of the support platform is used to support the bottom surface of workpiece.The utility model carries out quick initial positioning to workpiece by positioning slot, saves the time of traditional scribing, alignment, significantly improves clamping efficiency, support platform provides stable support for workpiece bottom surface, and it is common to constitute support structure with fixture base body, effectively suppresses vibration in machining process, ensures machining accuracy, and simultaneously, the tooling fixture simple structure, manufacturing cost is low, and general-purpose.

Description

Technical Field

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

[0002] Tooling fixtures, as key process equipment connecting workpieces and machine tools, directly determine machining quality, efficiency, and cost. Currently, in the machining of small-batch, multi-variety workpieces, general-purpose fixtures are commonly used in conjunction with scribing and dial indicator alignment. This traditional method has significant drawbacks. First, each workpiece clamping requires manual alignment and positioning, a tedious and time-consuming process that heavily relies on the operator's experience, resulting in a significant reduction in effective machine tool processing time and overall low production efficiency. Second, general-purpose fixtures are poorly adaptable to complex or irregularly shaped workpieces, failing to provide sufficient and stable support and clamping. During machining, especially under intermittent cutting or large cutting forces, the workpiece is prone to vibration, displacement, or even deformation. This not only severely affects the quality and dimensional accuracy of the machined surface but may also cause abnormal tool wear or chipping, increasing production costs. Although specialized fixtures can provide stable positioning, they are typically complex in structure, have long design and manufacturing cycles, are expensive, and are highly specialized, making them unsuitable for rapid product changes and iterations. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a CNC tooling fixture that is simple in structure, has high clamping efficiency, can effectively suppress vibration, and has low maintenance cost.

[0004] To achieve the above objectives, this utility model employs a CNC tooling fixture, comprising a fixture base and a support platform. At least one positioning groove for accommodating and positioning a workpiece is provided on the side wall of the fixture base. The support platform is connected to the bottom of the fixture base, and the upper surface of the support platform is used to support the bottom surface of the workpiece.

[0005] The advantages of the above structure are as follows: the positioning groove enables rapid initial positioning of the workpiece, eliminating the time required for traditional scribing and alignment, and significantly improving clamping efficiency. The support platform provides stable support for the bottom surface of the workpiece and together with the fixture base, forms a support structure that effectively suppresses vibration during processing and ensures processing accuracy. At the same time, the tooling fixture has a simple structure, low manufacturing cost, and strong versatility.

[0006] This utility model is further configured to include a clamping assembly, which includes a pressure plate, a support plate, and fasteners. The pressure plate is located on the side of the fixture base where the positioning groove is formed, and the support plate is located on the other side of the fixture base opposite to the positioning groove. The fasteners pass through the support plate and the fixture base in sequence and are driven to connect with the pressure plate. By tightening the fasteners, the pressure plate is driven to clamp the workpiece. After the workpiece is placed in the positioning groove, clamping can be completed simply by operating the fasteners; the action is simple and the time consumption is short.

[0007] This utility model is further configured with a detachable pressure block at the end of the pressure plate facing the workpiece. The pressure block is used to contact and clamp the workpiece. As a consumable part, the pressure block is worn down over long-term use, so there is no need to replace the entire pressure plate; only the very low-cost pressure block needs to be replaced, which greatly reduces maintenance costs and extends the service life of the fixture body.

[0008] This utility model is further configured such that the bottom surface of the support platform and the bottom surface of the fixture base are located on the same plane. By ensuring that the force on the fixture base and the support platform can be evenly transmitted to the machine tool table, they together form a robust whole, effectively suppressing cutting vibration and ensuring the smoothness of the machining process. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0010] Figure 2 This is a schematic diagram of the internal structure of the fixture base according to an embodiment of the present invention.

[0011] Figure 3 This is a schematic diagram of the pressure block structure on the pressure plate in an embodiment of this utility model. Detailed Implementation

[0012] like Figures 1-3As shown, an embodiment of this utility model provides a CNC tooling fixture, including a fixture base 1, a support platform 2, and a clamping assembly 3. The fixture base 1 has twelve positioning slots 11 on its side wall for accommodating and positioning workpieces 4. The support platform 2 is connected to the bottom of the fixture base 1, and its upper surface supports the bottom surface of the workpiece 4. Its bottom surface is coplanar with the bottom surface of the fixture base 1, jointly providing support for the workpiece 4 and transmitting the cutting force to the machine tool table. The clamping assembly 3 includes a pressure plate 31 and a support plate 32. 2 and two fastening screws as fasteners 33. The pressure plate 31 is located on the side of the fixture base 1 where the positioning groove 11 is opened. Two detachable pressure blocks 311 are provided on the end of the pressure plate facing the workpiece 4. The support plate 32 is located on the other side of the fixture base 1. The two fastening screws 33 pass through the support plate 32 and the fixture base 1 respectively and are driven to connect with the pressure plate 31. By tightening the fastening screws 33, the pressure plate 31 and its pressure blocks 311 can be driven to move towards the workpiece 4, thereby stably pressing the workpiece 4 in the positioning groove 11.

[0013] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model, and the utility model creation is in line with the applicant's actual R&D capabilities and resource conditions.

Claims

1. A CNC tooling fixture, characterized in that: The fixture includes a fixture base and a support platform. The fixture base has at least one positioning groove on its side wall for accommodating and positioning a workpiece. The support platform is connected to the bottom of the fixture base, and the upper surface of the support platform is used to support the bottom surface of the workpiece.

2. The CNC tooling fixture according to claim 1, characterized in that: It also includes a clamping assembly, which includes a pressure plate, a support plate, and fasteners. The pressure plate is located on the side of the fixture base where the positioning groove is opened, and the support plate is located on the other side of the fixture base opposite to the positioning groove. The fasteners pass through the support plate and the fixture base in sequence and are driven to connect with the pressure plate. The pressure plate is driven to clamp the workpiece by tightening the fasteners.

3. The CNC tooling fixture according to claim 2, characterized in that: The end of the pressure plate facing the workpiece is provided with a detachable pressure block, which is used to contact and press the workpiece.

4. The CNC tooling fixture according to claim 1, 2, or 3, characterized in that: The bottom surface of the support platform and the bottom surface of the fixture base are located on the same plane.

Images