A positioning device for saxophone assembly

Abstract

The present disclosure relates to the technical field of saxophone processing, and one embodiment of the present disclosure provides a positioning device for saxophone assembly, which comprises a main frame and a turnover frame, the turnover frame is rotatably connected to the main frame through a rotating shaft, an angle adjusting assembly is arranged between the turnover frame and the main frame, and a clamping and fixing assembly is arranged on the turnover frame, the clamping and fixing assembly comprises a fixed sleeve, the fixed sleeve is fixed to an upper end of a surface of the turnover frame, the surface of the turnover frame is provided with a movable cavity, a adjusting screw is perpendicularly rotatably connected to the movable cavity, a lifting frame is perpendicularly slidably sleeved in the movable cavity, a movable sleeve is arranged on the lifting frame, and the movable sleeve is located at an upper end of the fixed sleeve. Through the above technical scheme, the technical problem that a special positioning device is generally lacking in the existing saxophone assembly process, the saxophone main body cannot be firmly fixed, and the main body is prone to shifting, shaking and other activities during assembly is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of saxophone instrument manufacturing, and more specifically, to a positioning device for saxophone assembly. Background Technology

[0002] In the field of saxophone manufacturing, the assembly process is the core step in precisely connecting components such as the main tube, side tubes, keys, and tonehole covers. The assembly precision directly determines the saxophone's intonation, key sensitivity, and overall stability. As saxophones develop towards higher precision and customization, the shortcomings of traditional assembly methods are becoming increasingly apparent: Current saxophone assembly processes generally lack dedicated positioning devices, making it impossible to firmly fix the saxophone body. During assembly, the body is prone to shifting and wobbling, affecting the accuracy of component connections and increasing operational difficulty, making it difficult to meet the demands for efficient and precise assembly.

[0003] Traditional saxophone assembly often relies on the operator holding the instrument or using a simple stand to support the main body. However, the saxophone body has an irregular curved surface structure, and different models of saxophones have different curvatures and lengths. When holding it in place, arm fatigue can easily cause the main body to shift. This is especially true during delicate operations such as installing the key linkage and welding the tube joints. Even slight movements can cause misalignment of parts. For example, misalignment of the key shaft hole can cause the key to jam, and misalignment of the tube joint can affect the airflow seal. Although a simple stand can provide some support, it cannot conform to the curved contours of the saxophone and has poor stability. It still requires manual assistance to stabilize the instrument during assembly, which not only distracts the operator but also increases the manpower required.

[0004] Therefore, developing a positioning device for assembly that can adapt to the irregular structure of saxophones and achieve a firm fixation of the main body has become an urgent need to improve the accuracy and efficiency of saxophone assembly. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a positioning device for saxophone assembly, which solves the technical problem that the existing saxophone assembly process generally lacks a dedicated positioning device, making it impossible to firmly fix the saxophone body, and the body is prone to displacement, shaking and other movements during assembly.

[0006] According to one aspect, at least one embodiment of this disclosure provides a positioning device for saxophone assembly, comprising: The main frame and the tilting frame are rotatably connected to the main frame via a rotating shaft. An angle adjustment component is disposed between the tilting frame and the main frame; A clamping and fixing assembly is disposed on the tilting frame; The clamping and fixing assembly includes a fixed sleeve, which is fixed to the upper end of the surface of the flipping frame. The surface of the flipping frame has a movable cavity, and an adjusting screw is vertically rotatably connected inside the movable cavity. A lifting frame is vertically slidably fitted inside the movable cavity, and a movable sleeve is provided on the lifting frame. The movable sleeve is located above the fixed sleeve.

[0007] As a further technical solution, the lifting frame and the adjusting screw are connected by a threaded connection, and a through cavity is opened in the bottom of the tilting frame. A column is installed in the through cavity, and a bottom rod is vertically and movably connected to the column.

[0008] As a further technical solution, a spring is fitted on the column, the spring is supported between the bottom of the cavity and the bottom rod, and a horizontal groove is opened on the surface of the bottom rod, and a support is rotatably connected in the horizontal groove.

[0009] As a further technical solution, an adjusting stud is horizontally rotatably connected in the transverse groove. The adjusting stud is connected to the support by a threaded connection. Both the adjusting screw and the adjusting stud are provided with a turning block at one end.

[0010] According to another aspect, in at least one embodiment of the present invention, the angle adjustment assembly includes a worm gear, the worm gear is fixed to one end of the rotating shaft of the tilting frame, a pair of fixing plates are provided on the back of the main frame, a worm is horizontally rotatably connected between the fixing plates, and the worm meshes with the worm gear.

[0011] As a further technical solution, a crank handle is provided at one end of the worm gear.

[0012] As a further technical solution, both the fixed sleeve and the movable sleeve are semi-circular structures, and the fixed sleeve and the movable sleeve are fixed at an inclined angle, with the inclined angle of the fixed sleeve and the movable sleeve matching the inclined angle of the saxophone neck.

[0013] As a further technical solution, the tilting frame can rotate 360° through the transmission of the worm and the worm wheel.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the clamping and fixing assembly solves the problems of insufficient stable fixation and easy displacement of saxophones in traditional assembly through a double-fixation and flexible adaptation design. The fixed sleeve and the movable sleeve cooperate to form a wraparound clamping from the top and bottom of the neck. The semi-circular structure conforms to the contour of the neck, and the tilt angle adapts to the shape of the neck, ensuring a stable and damage-free clamping. The support is elastically supported from the bottom by the action of a spring, and the position of the support can be adjusted by the adjusting stud to adapt to the bottom structure of different saxophone models. The threaded drive of the adjusting screw and the adjusting stud achieves precise control of the fixing force and support position, avoiding component deformation caused by rigid fixation. This structure can firmly fix the saxophone without manual assistance, ensuring the accuracy of component docking during assembly, reducing assembly deviations caused by displacement, and meeting the needs of fine assembly of saxophones. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 Appendix to this disclosure Figure 1 Enlarged view of part A in the middle; In the diagram: 1. Main frame; 2. Tilting frame; 3. Clamping and fixing assembly; 3-1. Fixing sleeve; 3-2. Movable cavity; 3-3. Adjusting screw; 3-4. Lifting frame; 3-5. Movable sleeve; 3-6. Through cavity; 3-7. Column; 3-8. Base rod; 3-9. Spring; 3-10. Horizontal groove; 3-11. Support; 3-12. Adjusting stud; 3-13. Tightening block; 4. Angle adjustment assembly; 4-1. Worm gear; 4-2. Fixing plate; 4-3. Worm; 5. Crank handle. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-3 As shown, a positioning device for saxophone assembly is illustrated in one embodiment of this disclosure, comprising: The main frame 1 and the tilting frame 2 are rotatably connected to the main frame 1 via a rotating shaft. An angle adjustment component 4 is disposed between the tilting frame 2 and the main frame 1; Clamping and fixing assembly 3, wherein the clamping and fixing assembly 3 is disposed on the flipping frame 2; The clamping and fixing assembly 3 includes a fixing sleeve 3-1, which is fixed to the upper surface of the flipping frame 2. A movable cavity 3-2 is formed on the surface of the flipping frame 2. An adjusting screw 3-3 is vertically rotatably connected within the movable cavity 3-2. A lifting frame 3-4 is vertically slidably fitted within the movable cavity 3-2. A movable sleeve 3-5 is provided on the lifting frame 3-4, located above the fixing sleeve 3-1. The lifting frame 3-4 and the adjusting screw 3-3 are connected by a threaded connection. A through cavity 3-6 is formed in the bottom of the flipping frame 2. A... There is a column 3-7, and a base rod 3-8 is vertically and movably connected to the column 3-7. A spring 3-9 is fitted on the column 3-7 and is supported between the bottom of the cavity 3-6 and the base rod 3-8. A horizontal groove 3-10 is opened on the surface of the base rod 3-8. A support 3-11 is horizontally rotatably connected in the horizontal groove 3-10. An adjusting stud 3-12 is horizontally rotatably connected in the horizontal groove 3-10. The adjusting stud 3-12 and the support 3-11 are connected by a threaded engagement. A screw block 3-13 is provided at one end of both the adjusting screw 3-3 and the adjusting stud 3-12.

[0024] In some examples, in order to achieve double stable fixation of the saxophone neck and bottom and avoid displacement or shaking of the saxophone during assembly, a clamping and fixing component 3 is designed. This component includes a fixing sleeve 3-1 at the upper end of the surface of the flip frame 2 to provide lower support and positioning for the saxophone neck. The vertically rotating adjusting screw 3-3 in the movable cavity 3-2 of the surface of the flip frame 2 and the lifting frame 3-4 are threaded together to form a lifting drive structure.

[0025] Rotating the screw block 3-13 at one end of the adjusting screw 3-3 can drive the lifting frame 3-4 to slide vertically along the movable cavity 3-2, thereby adjusting the height of the movable sleeve 3-5 on the lifting frame 3-4, so that the movable sleeve 3-5 fits down from the upper part of the saxophone neck and cooperates with the fixed sleeve 3-1 to form an upper and lower clamp, firmly fixing the neck part and preventing the neck from shifting axially or radially during assembly.

[0026] The upright 3-7 inside the bottom cavity 3-6 of the flip frame 2 provides vertical movable support for the bottom rod 3-8. The spring 3-9 on the upright 3-7 is supported between the bottom of the cavity 3-6 and the bottom rod 3-8, providing upward elastic support for the bottom rod 3-8. The bracket 3-11 inside the transverse groove 3-10 on the surface of the bottom rod 3-8 can support the bottom of the saxophone. The elastic support design allows the bracket 3-11 to automatically adjust its height according to the bottom profile of the saxophone, adapting to the bottom structure of different models of saxophones and avoiding damage to the bottom of the saxophone caused by rigid support.

[0027] The adjusting stud 3-12, which rotates horizontally within the transverse groove 3-10, is threadedly engaged with the support 3-11. Rotating the screw block 3-13 at one end of the adjusting stud 3-12 can drive the support 3-11 to move horizontally along the transverse groove 3-10, adjusting the support position of the support 3-11 to ensure precise support of the stress point at the bottom of the saxophone and further improve the stability of the fixation.

[0028] The vertical guide structure of the movable cavity 3-2 ensures that the lifting frame 3-4 rises and falls smoothly, and avoids uneven clamping caused by the displacement of the movable sleeve 3-5; the closed design of the through cavity 3-6 protects the internal spring 3-9 and the bottom rod 3-8, and prevents impurities from entering during the assembly process and affecting the operation of the components.

[0029] During operation, insert the saxophone neck into the fixed sleeve 3-1, rotate the adjusting screw 3-3 to clamp the neck with the movable sleeve 3-5, and the support 3-11 supports the bottom under the action of the spring 3-9. Rotate the adjusting stud 3-12 to adjust the position of the support 3-11. The elastic support ensures stability, is compatible with multiple saxophone models, and the coordinated operation of all components achieves precise fixation of the saxophone, meeting assembly requirements.

[0030] like Figures 1-3 As shown in the figure, the angle adjustment component 4 in this embodiment includes a worm gear 4-1, which is fixed to one end of the rotating shaft of the flipping frame 2. A pair of fixing plates 4-2 are provided on the back of the main frame 1. A worm 4-3 is horizontally rotatably connected between the fixing plates 4-2, and the worm 4-3 meshes with the worm gear 4-1.

[0031] In some examples, to achieve flexible adjustment and stable locking of the saxophone assembly angle and avoid wobbling or angle deviation during the angle adjustment process, an angle adjustment component 4 is designed. This component includes a worm gear 4-1 fixed at one end of the rotating shaft of the flip frame 2, which meshes with a worm 4-3 that rotates horizontally between the rotating shaft and the fixed plate 4-2 on the back of the main frame 1, forming a reduction transmission mechanism. The fixed plate 4-2 provides stable rotation support for the worm 4-3, ensuring that the worm 4-3 and the worm gear 4-1 always maintain precise meshing and avoid misalignment during the transmission process. When the worm 4-3 is rotated, the flip frame 2 is driven to rotate around the rotating shaft through the meshing transmission of the worm gear 4-1 and the worm 4-3, thereby adjusting the fixed saxophone angle on the flip frame 2 to meet the requirements of different assembly processes for the saxophone posture (such as connecting the buttons, installing the mouthpiece, etc.).

[0032] The worm gear 4-1 and worm 4-3 transmission has a self-locking characteristic, meaning that only the worm 4-3 can drive the worm gear 4-1 to rotate, and the worm gear 4-1 cannot drive the worm 4-3 in the opposite direction. This characteristic allows the saxophone to maintain a stable angle without additional locking structure after it has been adjusted to the target angle, preventing the saxophone from shifting due to external forces during assembly and ensuring the docking accuracy of the assembled parts. At the same time, the reduction ratio design of the worm gear 4-1 and worm 4-3 allows for fine-tuning of the angle. The operator can precisely control the rotation angle of the tilting frame 2 by slowly rotating the worm 4-3, avoiding the saxophone from shaking due to excessively rapid angle adjustment.

[0033] The symmetrical distribution design of the fixed plate 4-2 ensures that the worm 4-3 is subjected to balanced force and extends the service life of the worm 4-3; the rotational connection between the rotating shaft of the tilting frame 2 and the main frame 1 ensures smooth tilting without jamming.

[0034] During operation, rotating the worm gear 4-3 drives the tilting frame 2 to rotate via the worm wheel 4-1. After adjusting the saxophone to the target angle, the worm wheel 4-1 and worm gear 4-3 self-lock to maintain the angle, facilitating assembly operations. Precise transmission ensures controllable angles, and the self-locking characteristic ensures stability. The coordinated operation of all components enables multi-angle adjustment and positioning of the saxophone, meeting the operational requirements of the assembly process.

[0035] For example, such as Figure 2 As shown, a crank handle 5 is provided at one end of the worm gear 4-3.

[0036] In some examples, a crank handle 5 is provided at one end of the worm gear 4-3, providing the operator with a convenient point of force to rotate the worm gear 4-3. Compared to directly rotating the end of the worm gear 4-3, the crank handle 5 is ergonomically designed, allowing the operator to easily drive the worm gear 4-3 to rotate by turning the handle, reducing the force required on the hand. This is especially effective in reducing operator fatigue when the saxophone angle needs to be frequently adjusted.

[0037] For example, such as Figure 3 As shown, both the fixed sleeve 3-1 and the movable sleeve 3-5 are semi-circular structures. The fixed sleeve 3-1 and the movable sleeve 3-5 are fixed at an inclined angle, and the inclined angle of the fixed sleeve 3-1 and the movable sleeve 3-5 matches the inclined angle of the saxophone neck.

[0038] In some examples, the semi-circular structure of the fixed sleeve 3-1 and the movable sleeve 3-5 can form a wraparound clamping action from the outside of the saxophone neck's arc, increasing the contact area with the neck, preventing excessive local clamping force from causing neck deformation, and improving clamping stability to prevent the neck from rotating during assembly. The inclined fixing design of both sleeves, matching the tilt angle of the saxophone neck, ensures that the sleeves and neck are completely fitted together when clamped.

[0039] For example, such as Figure 2As shown, the tilting frame 2 can rotate 360° through the transmission of the worm 4-3 and the worm wheel 4-1.

[0040] In some examples, the 360° rotation function of the flip frame 2, achieved through the transmission of worm gear 4-3 and worm wheel 4-1, can meet the omnidirectional assembly needs of the saxophone. Whether it is connecting the button linkage on the side or installing the resonator tube at the bottom, the operator can adjust the saxophone to the most convenient angle by rotating the flip frame 2, without the need for frequent disassembly and reassembly of the saxophone, greatly improving assembly flexibility.

[0041] In actual use: Depending on the saxophone model, rotate the adjusting stud 3-12 and screw block 3-13 of the clamping and fixing assembly 3 to move the support 3-11 horizontally along the transverse groove 3-10 of the bottom rod 3-8, adjusting it to the appropriate support position for the bottom of the saxophone. Place the saxophone neck into the fixing sleeve 3-1 at the upper end of the flipping frame 2, rotate the adjusting screw 3-3 and screw block 3-13 to drive the lifting frame 3-4 to descend vertically along the movable cavity 3-2, so that the movable sleeve 3-5 clamps the neck from the top, and the bottom rod 3-8 is pushed upward by the spring 3-9, with the support 3-11 supporting the saxophone from the bottom, forming a double fixation from top and bottom. If the assembly angle needs to be adjusted, rotate the crank handle 5 of the angle adjusting assembly 4 to rotate the worm 4-3. Through the meshing transmission of the worm wheel 4-1 and worm 4-3, the flipping frame 2 rotates around the rotation axis. After adjusting to the target angle, the worm wheel 4-1 and worm 4-3 self-lock and retain the position. During assembly, the angle can be finely adjusted by turning the handle at any time. After assembly, turn the adjusting screw 3-3 and adjusting stud 3-12 in the opposite direction, loosen the movable sleeve 3-5 and the support 3-11, and the saxophone can be taken out. The entire process achieves stable fixation of the saxophone and flexible adjustment at multiple angles without the need for manual support.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A positioning device for saxophone assembly, characterized in that, include: The main frame (1) and the flipping frame (2) are rotatably connected to the main frame (1) via a rotating shaft; An angle adjustment component (4) is disposed between the flipping frame (2) and the main frame (1); A clamping and fixing assembly (3) is disposed on the flipping frame (2); The clamping and fixing assembly (3) includes a fixing sleeve (3-1), which is fixed to the upper surface of the flipping frame (2). The flipping frame (2) has a movable cavity (3-2) on its surface. An adjusting screw (3-3) is vertically rotatably connected inside the movable cavity (3-2). A lifting frame (3-4) is vertically slidably connected inside the movable cavity (3-2). A movable sleeve (3-5) is provided on the lifting frame (3-4), and the movable sleeve (3-5) is located at the upper end of the fixing sleeve (3-1).

2. A positioning device for saxophone assembly according to claim 1, characterized in that, The lifting frame (3-4) and the adjusting screw (3-3) are connected by a threaded connection. The bottom of the tilting frame (2) has a through cavity (3-6), and a column (3-7) is provided in the through cavity (3-6). A bottom rod (3-8) is vertically and movably connected to the column (3-7).

3. A positioning device for saxophone assembly according to claim 2, characterized in that, A spring (3-9) is fitted on the column (3-7). The spring (3-9) is supported between the bottom of the cavity (3-6) and the bottom rod (3-8). A horizontal groove (3-10) is opened on the surface of the bottom rod (3-8). A support (3-11) is horizontally rotatably connected in the horizontal groove (3-10).

4. A positioning device for saxophone assembly according to claim 3, characterized in that, An adjusting stud (3-12) is horizontally rotatably connected within the transverse groove (3-10). The adjusting stud (3-12) is connected to the support (3-11) via a threaded connection. A screw block (3-13) is provided at one end of both the adjusting screw (3-3) and the adjusting stud (3-12).

5. A positioning device for saxophone assembly according to claim 1, characterized in that, The angle adjustment assembly (4) includes a worm gear (4-1), which is fixed to one end of the rotating shaft of the tilting frame (2). A pair of fixing plates (4-2) are provided on the back of the main frame (1). A worm (4-3) is horizontally rotatably connected between the fixing plates (4-2), and the worm (4-3) meshes with the worm gear (4-1).

6. A positioning device for saxophone assembly according to claim 5, characterized in that, A crank handle (5) is provided at one end of the worm gear (4-3).

7. A positioning device for saxophone assembly according to claim 2, characterized in that, Both the fixed sleeve (3-1) and the movable sleeve (3-5) are semi-circular structures. The fixed sleeve (3-1) and the movable sleeve (3-5) are fixed at an inclined angle. The inclined angle of the fixed sleeve (3-1) and the movable sleeve (3-5) matches the inclined angle of the saxophone neck.

8. A positioning device for saxophone assembly according to claim 5, characterized in that, The tilting frame (2) can rotate 360° through the transmission between the worm (4-3) and the worm wheel (4-1).

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