Clamping assembly for special-shaped product

Abstract

The utility model discloses a clamping assembly for a special-shaped product. The chuck is driven by the driving device and can move in a guide groove of a machine tool spindle in a reciprocating mode, the chuck comprises a main body section, a conical section connected to the front end of the main body section and a clamping section connected to the front end of the conical section, and a narrow groove which penetrates from the middle to the front end and is used for enabling the chuck to generate elastic deformation is formed in the chuck. The front part of the slot is provided with a wave-shaped structure positioned at the clamping section; the driving device drives the chuck to move front and back, and the conical section is matched with the horn mouth formed in the front end of the guide groove to achieve releasing and clamping of the product. The clamping head has the advantages that workpiece products in more shapes can be clamped, so that the application range of the clamping head is widened, the phenomenon of unstable clamping caused by the fact that edges and corners of the products are embedded into gaps is effectively avoided, and the problem that the products are clamped obliquely or are not concentric in size due to uneven stress of a traditional straight groove clamping assembly is effectively solved.

Description

Technical Field

[0001] This utility model relates to a clamping device for processing polygonal and irregularly shaped products, and more particularly to a clamping assembly for irregularly shaped products. Background Technology

[0002] In product processing, workpieces are often clamped and fixed using a clamping device before being machined with a cutting tool. Currently, conventional clamping devices include a machine tool spindle and a clamping assembly within the spindle. This assembly typically includes a collet with a tapered head and a slotted groove on the collet for elastic deformation. During machining, the tapered head of the collet engages with the flared opening of the machine tool spindle to clamp and release the workpiece. While this design is suitable for machining ordinary workpieces, it becomes problematic when clamping polygonal or irregularly shaped products. Due to the limitations of the slotted groove, the product's edges can easily become embedded in the slot of the clamping assembly, leading to uneven force distribution during clamping. This can result in insufficient clamping, potentially causing tool collisions or product ejection during machining, posing safety hazards. Furthermore, clamping misalignment can lead to dimensional inconsistencies after machining, failing to meet predetermined machining accuracy requirements and thus affecting product performance. Furthermore, existing clamping methods require a high level of skill from operators, and even with professional training, clamping errors are still difficult to completely avoid. In short, this instability in clamping not only reduces production efficiency but also makes it difficult to achieve a 100% pass rate for product quality, leaving potential quality hazards. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a clamping component for irregularly shaped products that can improve clamping stability, improve processing accuracy, and improve clamping efficiency.

[0004] To solve the above-mentioned technical problems, the present invention provides a clamping assembly for irregularly shaped products, including a driving device and a chuck driven by the driving device and capable of reciprocating within the guide groove of the machine tool spindle. The chuck includes a main body section, a tapered section connected to the front end of the main body section, and a clamping section connected to the front end of the tapered section. The chuck has a slot extending from the middle to the front end for elastic deformation. The front part of the slot has a wave-shaped structure located at the clamping section. The driving device drives the chuck to move back and forth, and the product is released and clamped by the cooperation of the tapered section and the flared opening at the front end of the guide groove.

[0005] The drive device includes a cylinder located at the rear end of the machine tool spindle and a connecting rod that matches the cylinder. The connecting rod is connected to the rear end of the chuck.

[0006] The chuck has a necked section in the middle, and a cylindrical section that mates with the guide groove at the rear end of the necked section.

[0007] The cylindrical section has a threaded section at its rear end, and the pull rod has a threaded hole at its front end. The pull rod is screwed into the threaded section through the threaded hole.

[0008] The slot has a process hole at its rear end.

[0009] The number of slots is 2-4.

[0010] Advantages of this utility model:

[0011] By employing a chuck driven by a drive unit and capable of reciprocating within the guide groove of the machine tool spindle, along with a wave-shaped structure located at the clamping section at the front of the slot, the drive unit moves the chuck back and forth. The release and clamping of the product are achieved through the cooperation of the tapered section and the flared opening at the front of the guide groove. On one hand, this allows for the clamping of workpieces of more shapes, even polygonal or complex shapes, ensuring stable clamping and thus expanding the chuck's applicability. On the other hand, the wave-shaped structure at the clamping section effectively prevents product edges from getting stuck in the gaps, thus avoiding instability during clamping. This effectively solves the problem of uneven force distribution leading to product misalignment or dimensional inconsistency in traditional straight-slot clamping assemblies, thereby improving machining accuracy and ensuring product quality. Attached Figure Description

[0012] Figure 1 This is an assembly diagram of the clamping component for irregularly shaped products according to this utility model;

[0013] Figure 2 This is a cross-sectional view of the clamping head portion in the clamping assembly for irregularly shaped products of this utility model;

[0014] Figure 3 This is a side view of the clamp in the clamping assembly for irregularly shaped products according to this utility model. Detailed Implementation

[0015] The clamping assembly for irregularly shaped products of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] The assembly structure of the clamping component for irregularly shaped products of this utility model is as follows: Figure 1As shown, the device includes a drive unit and a chuck 1 driven by the drive unit and capable of reciprocating within the guide groove of the machine tool spindle 9. The drive unit includes a cylinder 7 located at the rear end of the machine tool spindle 9 and a connecting rod 8 that matches the cylinder. The connecting rod 8 is connected to the rear end of the chuck. The chuck 1 includes a main body section 5, a tapered section 4 connected to the front end of the main body section, and a clamping section 3 connected to the front end of the tapered section. The chuck 1 has a slot 2 that extends from the middle to the front end and is used to cause elastic deformation of the chuck 1. The front part of the slot 2 has a wave-shaped structure located at the clamping section. The drive unit drives the chuck 1 to move back and forth, and the product is released and clamped by the cooperation of the tapered section and the flared opening at the front end of the guide groove. This effectively solves the problem of product misalignment or dimensional misalignment caused by uneven force in traditional straight groove clamping components.

[0017] Figure 2 , Figure 3 The diagram shows a chuck in this invention. The chuck 1 has a necked section 12 in the middle, and a cylindrical section 6 that mates with the guide groove at the rear end of the necked section 12. The cylindrical section 6 has a threaded section 10 at the rear end, and the pull rod 8 has a threaded hole at the front end. The pull rod 8 is screwed to the threaded section 10 through the threaded hole. The slot 2 has a process hole 11 at the rear end to reduce stress and prevent cracking during processing. The slot 2 consists of two symmetrically distributed slots or three to four slots that are evenly distributed radially along the central axis of the chuck 2.

Claims

1. A clamping assembly for a profiled product, characterized by: The utility model relates to a driving device and a chuck (1) driven by the driving device and capable of reciprocating in a guide groove of a machine tool spindle (9), the chuck (1) comprising a main body section (5), a tapered section (4) connected to the front end of the main body section and a clamping section (3) connected to the front end of the tapered section, a slot (2) being formed in the chuck (1) and extending from the middle to the front end for elastically deforming the chuck (1), the front part of the slot (2) being provided with a wave-shaped structure at the clamping section, the chuck (1) being driven by the driving device to move back and forth and the tapered section and the bell mouth provided at the front end of the guide groove cooperating to release and clamp the product.

2. The clamping assembly for a profiled product according to claim 1, characterized in that: The driving device comprises a cylinder (7) provided at the rear end of the machine tool spindle (9) and a pull rod (8) matched with the cylinder, the pull rod (8) being connected to the rear end of the chuck.

3. The clamping assembly for a profiled product according to claim 2, characterized in that: The middle part of the chuck (1) has a necked section (12), the rear end of the necked section (12) having a cylindrical section (6) matched with the guide groove.

4. The clamp assembly for a profiled product according to claim 3, characterized in that: The rear end of the cylindrical section (6) is provided with a threaded section (10), the front end of the pull rod (8) is provided with a threaded hole, and the pull rod (8) is screwed with the threaded section (10) through the threaded hole.

5. The clamp assembly for a profiled product according to claim 1, characterized in that: The rear end of the slot (2) is provided with a process hole (11).

6. The clamp assembly for a profiled product according to claim 1, characterized in that: The number of the slots (2) is 2-4.

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