Punching device for saxophone body

Abstract

The utility model relates to the technical field of musical instrument manufacturing, in particular to a saxophone body punching device which comprises a machine base, a vertical plate is fixedly arranged on the left side of the upper end face of the machine base, a saxophone body punching die is fixedly connected to the lower portion of the right end face of the vertical plate, and a fixing support is fixedly arranged on the upper side of the right end face of the vertical plate. A transmission box is assembled on the front side of the sliding plate through bolts, a driving shaft is longitudinally assembled on the upper side in the transmission box, a cam is assembled on the driving shaft, and a tool changing frame is fixedly arranged on the lower side of the transmission box. Automatic positioning of the saxophone body is achieved through the saxophone body punching die, manual positioning and manual position adjustment of the saxophone body are not needed, manual intervention is reduced, operation convenience is improved, the punching requirements of sound holes with different diameters can be met, a drill bit does not need to be manually replaced, the punching process is faster and more continuous, and the punching efficiency is improved. And the punching efficiency is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of musical instrument manufacturing, in particular to a saxophone body punching device. Background Art

[0002] The saxophone is a wind instrument invented by Belgian instrument maker Adolphe Sax in the 19th century. It usually consists of a conical metal body, a mouthpiece, a single reed and a series of keys. The saxophone can produce a unique and expressive sound, and its timbre is between that of woodwind instruments and brass instruments. The saxophone is a metal conical body instrument that produces sound through the vibration of a single reed on the mouthpiece. It has a complex system of keys for changing the pitch and is widely used in jazz, classical music, military music and many other musical styles.

[0003] Saxophone is a popular wind instrument. The distribution and accuracy of the sound holes on its body directly affect the pitch and timbre of the instrument. In the production process of saxophone, it is necessary to punch holes on its body to make sound holes. In the prior art, measuring tools are usually used to determine the position and size of the sound holes, and the positions of the sound holes are marked on the body. Then, punching equipment such as a punching machine is used to punch out the sound holes at the pre-marked positions. However, the use of a punching machine requires manual positioning of the saxophone body, and the position of the saxophone body needs to be manually adjusted to perform punching operations at different positions. It is difficult to ensure the consistency and accuracy of the punching, and different drill bits need to be manually replaced for sound holes of different diameters. The operation is not convenient, which affects the punching efficiency. Utility Model Content

[0004] In view of the existing deficiencies, the utility model provides a saxophone body punching device, which can accurately position the saxophone body without manually adjusting the position of the saxophone body, thereby achieving fast and accurate punching of the saxophone body, reducing production costs and improving product quality.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A saxophone body punching device, comprising a machine base and a vertical plate. A vertical plate is fixedly arranged on the left side of the upper end surface of the machine base. A tube body punching die is fixedly connected to the lower part of the right end surface of the vertical plate. A fixed bracket is fixedly arranged on the upper side of the right end surface of the vertical plate. A threaded lead screw is assembled inside the fixed bracket. Guide slide bars are symmetrically arranged on the upper and lower sides of the threaded lead screw. A driving motor is assembled on the left side of the vertical plate, and the output end of the driving motor is fixedly connected to the left end of the threaded lead screw. A slide plate is assembled on the threaded lead screw by screw thread engagement, and the slide plate is sleeved on the guide slide bars and is slidably connected thereto. A transmission box is assembled on the front side of the slide plate by bolts. A driving shaft is longitudinally assembled on the upper side inside the transmission box. A reduction motor is installed on the rear side of the transmission box, and the output end of the reduction motor is fixedly connected to the driving shaft. A cam is assembled on the driving shaft. A limit sleeve is arranged on the lower side inside the transmission box. A push rod that can move up and down is assembled inside the limit sleeve. A first return spring is sleeved on the outer surface of the push rod. A guide post is fixedly connected to the upper end of the push rod. A tool changing rack is fixedly arranged on the lower side of the transmission box.

[0007] Further, the tube body punching die is of a conical structure, the diameter of its left end is larger than that of the right end, the inside of the tube body punching die is of a hollow structure, and a plurality of groups of positioning holes with diameters gradually decreasing from left to right are evenly arranged on the upper side of the outer surface of the tube body punching die.

[0008] Further, a discharge port is formed inside the vertical plate, and the position of the discharge port corresponds to the inner cavity of the tube body punching die. A waste box is arranged on the machine base on the left side of the vertical plate, and the waste box is located below the discharge port.

[0009] Further, a stud is fixedly arranged at the right end of the tube body punching die, and a retaining disc is connected to the stud by screw thread.

[0010] Further, a rotatable roller is assembled inside the upper end of the guide post, and the surface of the roller is in contact connection with the surface of the cam.

[0011] Further, the tool changing rack includes a connecting hanging rod and a tool disc. The tool disc is rotatably sleeved on the connecting hanging rod. The upper end of the connecting hanging rod is fixedly connected to the transmission box. A plurality of groups of punching head holes with different diameters are evenly arranged inside the tool disc. Punching heads are correspondingly arranged in the plurality of groups of punching head holes one by one, and the specifications of the punching heads are adapted to the specifications of the positioning holes. A connecting piece is arranged on the inner side of the outer surface of the punching head. The connecting piece is sleeved on a retaining rod, and the lower end of the retaining rod is fixedly connected to the tool disc. A second return spring is sleeved on the retaining rod below the connecting piece.

[0012] Further, a sliding sleeve is fixedly installed on the lower side of the cutter head, and the sliding sleeve is sleeved on the connecting hanging rod. A support spring is embedded inside the sliding sleeve, and a movable ball is embedded at the outer end of the support spring. There are multiple groups of the balls, and the number is the same as that of the stamping heads. Arc-shaped card slots are formed at the positions corresponding to the balls on the connecting hanging rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model realizes the automatic positioning of the saxophone body through the tube body punching die, eliminating the need for manual positioning and manual adjustment of the saxophone body, reducing manual intervention, improving the operation convenience, and the tool changing rack is provided with multiple stamping heads with different diameters, which can meet the punching requirements of sound holes with different diameters, eliminating the need for manual drill replacement, making the punching process faster and continuous, thus significantly improving the punching efficiency.

[0015] 2. The tube body punching die in the utility model is of a conical structure, with the left end diameter larger than the right end diameter. The conical design can adapt to the support and fixation of the saxophone body, ensuring its stability during punching. The inside of the tube body punching die is a hollow structure, providing sufficient space for accommodating the waste generated during punching, for temporarily storing the waste generated by punching. Multiple groups of positioning holes with diameters gradually decreasing from left to right are evenly arranged on the upper side of the toroidal surface of the tube body punching die. Through the arranged positioning holes, the punching of the saxophone body can be positioned, facilitating the punching of the saxophone body, and at the same time, meeting the punching requirements of sound holes with different diameters on the saxophone body.

[0016] 3. The utility model ensures that the waste generated during the punching process can smoothly discharge from the inside of the punching die through the arranged discharge port, preventing the waste from accumulating inside the tube body punching die and causing blockage. At the same time, the waste discharged from the discharge port can directly fall into the waste box, collecting the punching waste through the waste box, avoiding the scattering of the waste, and facilitating the subsequent treatment of the waste.

[0017] 4. The utility model is provided with a tool changing rack, which is convenient for replacing stamping heads of different specifications to punch different specifications of positioning holes. The operator does not need to manually replace the drill bit, and only needs to gently rotate the cutter head to select a suitable stamping head for punching, improving the punching efficiency and operation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the utility model;

[0019] Figure 2 is the structural schematic diagram of another angle of the utility model;

[0020] Figure 3 is the front view of the utility model;

[0021] Figure 4 is a schematic diagram of the partial structure of the present utility model;

[0022] Figure 5 is a schematic diagram of the structure of the transmission box in the present utility model;

[0023] Figure 6 is a schematic diagram of the internal structure of the transmission box in the present utility model;

[0024] Figure 7 is a schematic diagram of the structure of the tool changer in the present utility model;

[0025] Figure 8 is a schematic diagram of the bottom structure of the tool changer in the present utility model;

[0026] Figure 9 is a schematic diagram of the disassembled structure of the tool changer in the present utility model;

[0027] Figure 10 is a cross-sectional view of the tool changer in the present utility model;

[0028] Figure 11 is Figure 10 an enlarged schematic diagram of the structure at position A in

[0029] In the figure: 1, machine base; 2, tube body punching die; 3, waste box; 4, discharge port; 5, vertical plate; 6, driving motor; 7, fixed bracket; 8, reduction motor; 9, transmission box; 10, tool changer; 101, connecting hanging rod; 102, tool disc; 103, punching drill bit; 104, drill bit hole; 105, stop bar; 106, connecting piece; 107, second return spring; 108, sliding sleeve; 109, support spring; 1010, ball; 1011, card slot; 11, positioning hole; 12, sliding plate; 13, guiding slide bar; 14, threaded lead screw; 15, stud; 16, retaining disc; 17, cam; 18, driving shaft; 19, guide post; 20, first return spring; 21, push rod; 22, limiting sleeve; 23, roller. Specific embodiments

[0030] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0031] Embodiment:

[0032] As Figures 1 to 11As shown in the figure, a saxophone body punching device includes a machine base 1 and a vertical plate 5. On the left side of the upper end surface of the machine base 1, a vertical plate 5 is fixedly installed. At the lower part of the right end surface of the vertical plate 5, a tube body punching die 2 is fixedly connected. On the upper side of the right end surface of the vertical plate 5, a fixed bracket 7 is fixedly installed. Inside the fixed bracket 7, a threaded lead screw 14 is assembled. On the upper and lower sides of the threaded lead screw 14, guide slide rods 13 are symmetrically arranged. On the left side of the vertical plate 5, a driving motor 6 is assembled, and the output end of the driving motor 6 is fixedly connected to the left end of the threaded lead screw 14. A slide plate 12 is assembled on the threaded lead screw 14 by screw thread engagement, and the slide plate 12 is sleeved on the guide slide rod 13 and is slidably connected thereto. On the front side of the slide plate 12, a transmission box 9 is assembled by bolts. Inside the upper side of the transmission box 9, a driving shaft 18 is longitudinally assembled. At the rear side of the transmission box 9, a reduction motor 8 is installed, and the output end of the reduction motor 8 is fixedly connected to the driving shaft 18. A cam 17 is assembled on the driving shaft 18. Inside the lower side of the transmission box 9, a limit sleeve 22 is provided. Inside the limit sleeve 22, a push rod 21 that can move up and down is assembled. A first return spring 20 is sleeved on the outer surface of the push rod 21. The upper end of the push rod 21 is fixedly connected to a guide post 19. A tool changing rack 10 is fixedly installed at the lower side of the transmission box 9. This design solves the problems in the prior art that when using a punching machine, it is necessary to manually position the saxophone body and manually adjust the position of the saxophone body for punching operations at different positions, which is difficult to ensure the consistency and accuracy of punching. Moreover, for sound holes with different diameters, it is necessary to manually replace different drill bits, and the operation is not convenient enough, affecting the punching efficiency.

[0033] In this embodiment, the tube body punching die 2 has a conical structure, and its left end diameter is larger than the right end diameter. The conical design can adapt to the support and fixation of the saxophone body on it, ensuring its stability during punching. The inside of the tube body punching die 2 is a hollow structure, providing sufficient accommodation space for the waste generated during punching, for temporarily storing the waste generated by punching. On the upper side of the outer surface of the tube body punching die 2, a plurality of groups of positioning holes 11 with diameters gradually decreasing from left to right are evenly arranged. Through the arranged positioning holes 11, the punching of the saxophone body can be positioned, facilitating the punching of the saxophone body, and at the same time, it can meet the punching requirements of sound holes with different diameters on the saxophone body.

[0034] In this embodiment, a discharge port 4 is opened inside the vertical plate 5, and the position of the discharge port 4 corresponds to the internal cavity of the tube body punching die 2. On the machine base 1 on the left side of the vertical plate 5, a waste box 3 is provided, and the waste box 3 is located below the discharge port 4. This design ensures that the waste generated during the punching process can smoothly discharge from the inside of the punching die through the arranged discharge port 4, preventing the waste from accumulating inside the tube body punching die 2 and causing blockage. At the same time, the waste discharged from the discharge port 4 can directly fall into the waste box 3, and the waste box 3 collects the punching waste, avoiding the scattering of the waste and facilitating the subsequent treatment of the waste.

[0035] In this embodiment, a stud 15 is fixedly installed at the right end of the tube body punching die 2, and a retaining disc 16 is threadedly connected to the stud 15. This design plays a positioning role for the saxophone tube body through the set stud 15 and retaining disc 16. The retaining disc 16 can clamp and fix the saxophone tube body from the right side, so that it is fixed on the tube body punching die 2 and remains stable.

[0036] In this embodiment, a rotatable roller 23 is assembled inside the upper end of the guide post 19, and the surface of the roller 23 is in contact connection with the surface of the cam 17. By setting the roller 23, the sliding friction is transformed into rolling friction. The resistance of rolling friction is much smaller than that of sliding friction, which can reduce the friction between the guide post 19 and the cam 17, significantly reduce energy loss and component wear, and extend the service life of the equipment.

[0037] In this embodiment, the tool changer 10 includes a connecting hanging rod 101 and a tool disc 102. The tool disc 102 is rotatably sleeved on the connecting hanging rod 101. The upper end of the connecting hanging rod 101 is fixedly connected to the transmission box 9. A plurality of sets of punching head holes 104 with different diameters are evenly formed inside the tool disc 102. Punching heads 103 are correspondingly arranged in the plurality of sets of punching head holes 104 one by one, and the specifications of the punching heads 103 are adapted to the specifications of the positioning holes 11. A connecting piece 106 is arranged on the inner side of the circumferential surface of the punching head 103. The connecting piece 106 is sleeved on the retaining rod 105, and the lower end of the retaining rod 105 is fixedly connected to the tool disc 102. A second return spring 107 is sleeved on the retaining rod 105 below the connecting piece 106. By setting the tool changer 10, it is convenient to replace punching heads 103 with different specifications to punch holes in different specifications of positioning holes 11. The operator does not need to manually replace the drill bit, and only needs to gently rotate the tool disc 102 to select a suitable punching head 103 for punching, which improves the punching efficiency and operation convenience.

[0038] In this embodiment, a sliding sleeve 108 is fixedly installed below the tool disc 102, and the sliding sleeve 108 is sleeved on the connecting hanging rod 101. A support spring 109 is embedded inside the sliding sleeve 108, and movable balls 1010 are embedded at the outer ends of the support spring 109. There are multiple groups of balls 1010 and the number is the same as the number of punching heads 103. Arc-shaped grooves 1011 are formed at the corresponding positions on the connecting hanging rod 101 for the balls 1010. This design can realize the rotational connection between the tool disc 102 and the connecting hanging rod 101 through the sliding sleeve 108, which is convenient for rotating and adjusting the tool disc 102. Through the cooperation of the balls 1010 and the grooves 1011, the tool disc 102 can be accurately positioned during rotation and fixed in the current position, so that the punching heads 103 on the tool disc 102 can correspond to the positioning holes 11, thereby improving the punching accuracy and consistency.

[0039] The working principle of this saxophone body punching device: In actual application, first, the saxophone body is sleeved on the body punching die 2, and the saxophone body is supported by the body punching die 2. Then, the retaining plate 16 is screwed onto the stud 15 by thread and tightened. Through the cooperation of the stud 15 and the retaining plate 16, the saxophone body is clamped and fixed from the right side to ensure its stability during the punching process. On the upper side of the circumferential surface of the body punching die 2, a plurality of groups of positioning holes 11 with diameters gradually decreasing from left to right are evenly arranged for positioning the punching of the saxophone body. The operator can punch holes at different positioning holes 11 according to needs. Then, the driving motor 6 is started, and the driving motor 6 drives the threaded lead screw 14 to rotate, thereby driving the slide plate 12 to translate. The slide plate 12 drives the transmission box 9 and the punching head 103 to move, so that the punching cylinder is aligned with the positioning hole 11 on the body punching die 2. The reduction motor 8 is started, and the reduction motor 8 drives the cam 17 to rotate. When the cam 17 rotates, it pushes the guide post 19 to move downward, and the guide post 19 pushes the push rod 21 to move downward. The push rod 21 pushes the punching head 103 on the tool change rack 10 to move downward, and the punching of the saxophone body is realized through the downward pressing action of the punching head 103;

[0040] The waste generated during the punching process falls into the cavity inside the body punching die 2 and falls into the waste box 3 through the discharge port 4. The waste box 3 is used to collect the punching waste, avoiding the scattering of the waste and facilitating the later treatment;

[0041] When it is necessary to replace the punching heads 103 of different specifications, the operator can gently rotate the tool disc 102 to rotate the required punching head 103 to directly below the push rod 21 and correspond to the positioning hole 11. The sliding sleeve 108 and the ball 1010 on the lower side of the tool disc 102 cooperate with the card slot 1011 on the connecting hanging rod 101 to realize the precise positioning and fixation of the tool disc 102.

[0042] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to list all the implementation manners here. All obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A saxophone body punching device, comprising a machine base (1) and a vertical plate (5), characterized in that: On the left side of the upper end face of the machine base (1), a vertical plate (5) is fixedly installed. At a position slightly below the right end face of the vertical plate (5), a tube body punching die (2) is fixedly connected. On the upper side of the right end face of the vertical plate (5), a fixed support (7) is fixedly installed. Inside the fixed support (7), a threaded lead screw (14) is assembled. On the upper and lower sides of the threaded lead screw (14), guide slide rods (13) are symmetrically arranged. On the left side of the vertical plate (5), a driving motor (6) is assembled, and the output end of the driving motor (6) is fixedly connected to the left end of the threaded lead screw (14). A slide plate (12) is assembled on the threaded lead screw (14) by screw thread engagement, and the slide plate (12) is sleeved on the guide slide rod (13) and is slidably connected thereto. On the front side of the slide plate (12), a transmission box (9) is assembled by bolts. Inside the upper side of the transmission box (9), a driving shaft (18) is longitudinally assembled. At the rear side of the transmission box (9), a reduction motor (8) is installed, and the output end of the reduction motor (8) is fixedly connected to the driving shaft (18). A cam (17) is assembled on the driving shaft (18). Inside the lower side of the transmission box (9), a limit sleeve (22) is provided. Inside the limit sleeve (22), a push rod (21) that can move up and down is assembled. A first return spring (20) is sleeved on the circumferential surface of the push rod (21). The upper end of the push rod (21) is fixedly connected to a guide post (19). A tool changing rack (10) is fixedly installed at the lower side of the transmission box (9).

2. The saxophone body punching device according to claim 1, characterized in that: The tube body punching die (2) is of a conical structure, with its left end diameter larger than the right end diameter. The inside of the tube body punching die (2) is a hollow structure. On the circumferential surface of the tube body punching die (2), a plurality of positioning holes (11) with diameters gradually decreasing from left to right are evenly arranged on the upper side.

3. The saxophone body punching device according to claim 2, characterized in that: An outlet (4) is opened inside the vertical plate (5), and the position of the outlet (4) corresponds to the internal cavity of the tube body punching die (2). A waste box (3) is provided on the machine base (1) on the left side of the vertical plate (5), and the waste box (3) is located below the outlet (4).

4. The saxophone body punching device according to claim 3, characterized in that: A stud (15) is fixedly installed at the right end of the tube body punching die (2), and a retaining disc (16) is connected to the stud (15) by screw thread.

5. The saxophone body punching device according to claim 1, characterized in that: A rotatable roller (23) is assembled inside the upper end of the guide post (19), and the surface of the roller (23) is in contact connection with the surface of the cam (17).

6. The saxophone body punching device according to claim 1, characterized in that: The tool changer (10) includes a connecting hanging rod (101) and a tool disc (102). The tool disc (102) is rotatably sleeved on the connecting hanging rod (101). The upper end of the connecting hanging rod (101) is fixedly connected to the transmission box (9). A plurality of groups of stamping head holes (104) with different diameters are evenly formed inside the tool disc (102). A stamping head (103) is correspondingly arranged in each of the plurality of groups of stamping head holes (104). The specifications of the stamping head (103) are adapted to the specifications of the positioning holes (11). A connecting piece (106) is arranged on the inner side of the circumferential surface of the stamping head (103). The connecting piece (106) is sleeved on the stop rod (105). The lower end of the stop rod (105) is fixedly connected to the tool disc (102). A second return spring (107) is sleeved on the stop rod (105) below the connecting piece (106).

7. The saxophone body punching device according to claim 6, characterized in that: A sliding sleeve (108) is fixedly arranged below the tool disc (102). The sliding sleeve (108) is sleeved on the connecting hanging rod (101). A support spring (109) is embedded inside the sliding sleeve (108). A movable ball (1010) is embedded at the outer end of the support spring (109). A plurality of groups of the balls (1010) are provided and the number thereof is the same as the number of the stamping heads (103). Arc-shaped grooves (1011) are formed at positions corresponding to the balls (1010) on the connecting hanging rod (101).

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