Fixture special for flute milling

Abstract

The utility model belongs to the technical field of musical instrument processing, and particularly discloses a special fixture for flute milling, which comprises a base and a transverse positioning component, the transverse positioning component comprises a bilateral driving device and clamping components, and the clamping components are symmetrically arranged on two sides of the bilateral driving device in the transverse direction. The clamping assembly comprises a fixed clamp and a movable clamp which are used for clamping in the radial direction of the flute, the fixed clamp is fixedly connected to the base, the movable clamp is transversely connected to the base in a sliding mode, the double-side driving device comprises a driving block and a driven block, the driving block is wedge-shaped, the two sides of the driving block are obliquely arranged to form a driving part, and the cross section of the driving part is T-shaped; a T-shaped groove is formed in the driven block, the driving parts on the two sides of the driving block are slidably connected to the T-shaped groove of the driven block, and the driven block is transversely slidably connected to the base and is in driving connection to the movable clamp, so that bidirectional tensioning is achieved, the clamping efficiency is improved, the stability and precision of flutes in the machining process are guaranteed, and machining errors are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of musical instrument processing technology, specifically relating to a special fixture for milling flutes. Background Technology

[0002] As a traditional wind instrument, the tin whistle has a wide range of applications, and its ever-increasing demand places higher demands on production efficiency and quality. In the manufacturing process, machining precision, production efficiency, stability, and product appearance protection are all key factors. Traditional machining methods and fixtures are, to some extent, insufficient to meet the demands of modern large-scale, high-quality production. On the one hand, with the increasing emphasis on pitch accuracy in musical performance, the machining precision of the flute holes has become a crucial factor affecting tin whistle quality; on the other hand, the diverse market demand for tin whistles of different specifications and pitches also requires a higher degree of flexibility and adaptability in the production process.

[0003] Currently, most commonly used clamps in the industry are simple vises. These clamps have a relatively simple structure, mainly consisting of a fixed jaw, a movable jaw, and a screw. When clamping a whistle, the movable jaw is moved by rotating the screw, thus clamping the whistle. However, their clamping accuracy is low. Due to uneven clamping force and a relatively rough positioning method, it is difficult to ensure the accuracy of the diameter and spacing of the whistle holes during machining, easily leading to pitch problems. Secondly, simple vises have a small clamping capacity and a cumbersome clamping process, requiring repeated manual adjustments, resulting in low production efficiency and failing to meet the needs of mass production. Utility Model Content

[0004] To address the issue of insufficient efficiency and accuracy in whistle clamping in existing technologies, a special fixture for whistle milling is proposed. This utility model provides the following technical solution:

[0005] A special fixture for milling flutes includes a base and a lateral positioning assembly. The lateral positioning assembly includes a double-sided drive device and a clamping assembly. The clamping assembly is symmetrically arranged on both sides of the double-sided drive device. The clamping assembly includes a fixed clamp and a movable clamp for clamping the flute radially. The fixed clamp is fixedly connected to the base, and the movable clamp is slidably connected to the base laterally. The double-sided drive device includes a drive block and a driven block. The drive block is wedge-shaped, and the two sides of the drive block are inclined to form drive portions with a T-shaped cross-section. The driven block is provided with a T-slot. The drive portions on both sides of the drive block are slidably connected to the T-slots of the driven block. The driven block is laterally slidably connected to the base and drivenly connected to the movable clamp.

[0006] Preferably, the dual-sided drive device uses an OK clamp, with a drive block in the middle of the OK clamp and driven blocks on both sides of the drive block. In another preferred embodiment, the dual-sided drive device further includes a longitudinal telescopic cylinder and a spring. The spring is connected to the movable clamp and the driven block, and the output end of the longitudinal telescopic cylinder is driven and connected to the drive block, causing the drive block to slide longitudinally and connect to the base.

[0007] Preferably, a guide seat is installed on the base, and a guide groove is provided in the middle of the guide seat. The driving block is vertically slidably connected to the guide groove, and the driven block is horizontally slidably connected to the guide groove.

[0008] Preferably, a longitudinal positioning mounting seat is installed on the base, and a positioning rod for positioning the flute in the axial direction is installed on the longitudinal positioning mounting seat.

[0009] Preferably, a longitudinal drive device is installed on the base, the longitudinal positioning mounting seat is longitudinally slidably connected to the base, and the longitudinal drive device is driven to the longitudinal positioning mounting seat.

[0010] Preferably, multiple lateral positioning components are arranged in parallel on the base.

[0011] Preferably, the lateral positioning components are arranged at equal intervals along the lateral direction.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Through the design of the double-sided drive device and clamping components, the bidirectional tension of the flute is realized, which improves the clamping efficiency, while ensuring the stability and precision of the flute during the processing and reducing processing errors;

[0014] 2. Pneumatic OK clamps can be used to simplify the operation process and improve work efficiency;

[0015] 3. By using a longitudinal positioning mounting base and positioning rod, the precise positioning of the whistle during processing is ensured, effectively solving the problem of standardizing the control of the diameter and spacing of the whistle holes, thereby improving product quality and reducing the scrap rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a 3D structural diagram of the OK clip;

[0018] In the attached diagram, 1 is the base; 2 is the lateral positioning assembly; 21 is the clamping assembly; 211 is the fixed clamp; 212 is the movable clamp; 22 is the double-sided drive device; 221 is the drive block; 2211 is the drive unit; 222 is the driven block; 23 is the guide seat; 31 is the longitudinal positioning mounting seat; 32 is the positioning rod; and 4 is the flute. Detailed Implementation

[0019] The directional terms mentioned in the following embodiments, such as "up", "down", "left", and "right", are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention of this utility model.

[0020] Example 1

[0021] like Figure 1 and Figure 2 As shown, a special fixture for milling flutes includes a base 1 and a transverse positioning assembly 2. The transverse positioning assembly 2 includes a double-sided drive device 22 and a clamping assembly 21. The clamping assembly 21 is symmetrically arranged on both sides of the double-sided drive device 22 in the transverse direction. The clamping assembly 21 includes a fixed clamp 211 and a movable clamp 212 for clamping the flute 4 in the radial direction. The fixed clamp 211 is fixedly connected to the base 1, and the movable clamp 212 is slidably connected to the base 1 in the transverse direction. The double-sided drive device 22 includes a drive block 221 and a driven block 222. The drive block 221 is wedge-shaped. The moving block 221 is inclined on both sides to form a driving part 2211. The cross-section of the driving part 2211 is T-shaped. The driven block 222 is provided with a T-shaped groove. The driving parts 2211 on both sides of the driving block 221 are slidably connected to the T-shaped groove of the driven block 222. The driving part 2211 can only move along the length direction of the T-shaped groove, which can prevent it from disengaging from other directions. The driven block 222 is laterally slidably connected to the base 1 and driven to the movable clamp 212 to achieve bidirectional tensioning, improve clamping efficiency, ensure the stability and accuracy of the flute 4 during the processing, and reduce processing errors.

[0022] Specifically, the dual-sided drive device 22 uses an OK clamp, with a drive block 221 in the middle and driven blocks 222 on both sides of the drive block 221. The drive block 221 moves up and down, and the driven blocks 222 move left and right. The drive method is simple, fast, and efficient. In this embodiment, a pneumatic OK clamp is used to further simplify the operation process and improve work efficiency.

[0023] Specifically, a guide seat 23 is installed on the base 1, and a guide groove is provided in the middle of the guide seat 23. The drive block 221 is vertically slidably connected to the guide groove, and the driven block 222 is horizontally slidably connected to the guide groove to ensure that the movement path of the double-sided drive device 22 is accurate.

[0024] Specifically, multiple horizontal positioning components 2 are arranged in parallel on the base 1. Each horizontal positioning component 2 is arranged at equal intervals along the horizontal direction, which can process multiple flutes 4 at the same time, thus improving production efficiency.

[0025] Furthermore, a longitudinal positioning mounting seat 31 is installed on the base 1, and a positioning rod 32 for positioning the flute 4 in the axial direction is installed on the longitudinal positioning mounting seat 31. This ensures the accurate positioning of the whistle during the processing, effectively solves the problem of standard control of the diameter and spacing of the flute holes, thereby improving product quality and reducing the scrap rate.

[0026] Furthermore, a longitudinal drive device is installed on the base 1, and the longitudinal positioning mounting seat 31 is longitudinally slidably connected to the base 1. The longitudinal drive device is driven and connected to the longitudinal positioning mounting seat 31, which can further fine-tune the longitudinal position.

[0027] Example 2

[0028] The difference from Embodiment 1 is that the double-sided drive device 22 also includes a longitudinal telescopic cylinder and a spring for resetting. The two ends of the spring are respectively connected to the movable clamp 212 and the driven block 222. The drive block 221 moves horizontally and longitudinally, and the driven block 222 moves left and right. The output end of the longitudinal telescopic cylinder is driven and connected to the drive block 221 and drives the drive block 221 to slide longitudinally and connect to the base 1.

[0029] Example 3

[0030] The difference from Embodiment 1 and Embodiment 2 is that the drive block 221 of the OK clamp is driven by a lead screw. The lead screw is arranged vertically and threaded to the drive block 221. The lead screw is driven by a motor, thereby driving the drive block 221 to move up and down, realizing more precise and stable drive control and improving processing accuracy.

[0031] Example 4

[0032] Based on Embodiment 1, Embodiment 2, or Embodiment 3, the fixed clamp 211 and the movable clamp 212 are provided with clamping grooves on their adjacent sides. The clamping grooves are arc-shaped and rubber pads are fixedly connected to the clamping grooves, which increases the stability of clamping and protects the surface of the flute 4 from damage, thereby improving the yield and aesthetics of the product.

Claims

1. A special fixture for milling flutes, characterized in that, The device includes a base (1) and a lateral positioning assembly (2). The lateral positioning assembly (2) includes a double-sided drive device (22) and a clamping assembly (21). The clamping assembly (21) is symmetrically arranged on both sides of the double-sided drive device (22). The clamping assembly (21) includes a fixed clamp (211) and a movable clamp (212) for clamping the flute (4) radially. The fixed clamp (211) is fixedly connected to the base (1), and the movable clamp (212) is slidably connected to the base (1) laterally. The device (22) includes a driving block (221) and a driven block (222). The driving block (221) is wedge-shaped, and the two sides of the driving block (221) are inclined to form a driving part (2211). The cross-section of the driving part (2211) is T-shaped. The driven block (222) is provided with a T-shaped groove. The driving parts (2211) on both sides of the driving block (221) are slidably connected to the T-shaped groove of the driven block (222). The driven block (222) is laterally slidably connected to the base (1) and drivenly connected to the movable clamp (212).

2. The special fixture for milling flutes according to claim 1, characterized in that, The dual-sided drive device (22) uses an OK clamp, with a drive block (221) in the middle of the OK clamp and driven blocks (222) on both sides of the drive block (221) of the OK clamp.

3. The special fixture for milling flutes according to claim 2, characterized in that, A guide seat (23) is installed on the base (1). A guide groove is provided in the middle of the guide seat (23). The driving block (221) is vertically slidably connected to the guide groove, and the driven block (222) is horizontally slidably connected to the guide groove.

4. The special fixture for milling flutes according to claim 1, characterized in that, A longitudinal positioning mounting seat (31) is installed on the base (1), and a positioning rod (32) for positioning the flute (4) in the axial direction is installed on the longitudinal positioning mounting seat (31).

5. The special fixture for milling flutes according to claim 4, characterized in that, A longitudinal drive device is installed on the base (1), and the longitudinal positioning mounting seat (31) is longitudinally slidably connected to the base (1). The longitudinal drive device is driven to be connected to the longitudinal positioning mounting seat (31).

6. The special fixture for milling flutes according to claim 1, characterized in that, Multiple horizontal positioning components (2) are arranged in parallel on the base (1).

7. The special fixture for milling flutes according to claim 6, characterized in that, Each lateral positioning component (2) is arranged at equal intervals along the lateral direction.

8. The special fixture for milling flutes according to claim 1, characterized in that, The dual-sided drive device (22) also includes a longitudinal telescopic cylinder and a spring. The spring is connected to the movable clamp (212) and the driven block (222). The output end of the longitudinal telescopic cylinder is driven to the drive block (221) and drives the drive block (221) to slide longitudinally to the base (1).

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