Racket computer wire drawing machine

Abstract

The application discloses a racket computer stringing machine which comprises a base, a stringing assembly, a clamping assembly and an electrical control system, wherein the clamping assembly comprises a clamping jaw, a pressing block, a top cone block, a side top block, a pushing block and an eccentric handle pushing mechanism, the eccentric handle pushing mechanism comprises an eccentric shaft, a needle bearing arranged on the eccentric shaft, an unlocking assembly and a side top block adjusting assembly, the side top block adjusting assembly comprises the pushing block, a straight gear with a screw rod and an adjusting worm, the screw rod penetrates through the pushing block, the worm is arranged on the side of the pushing block, and the outer side surface of the straight gear is arranged in correspondence with the side top block.

Description

Technical Field

[0001] This invention belongs to the field of racket stringing auxiliary equipment, specifically relating to a racket computer stringing machine. Background Technology

[0002] A computerized stringing machine for rackets, also known as a racket stringing machine, is a machine used to string rackets such as tennis rackets, badminton rackets, and squash rackets. Based on machine form, racket stringing machines can be divided into tabletop stringing machines and 3D stringing machines; based on string type, they can be divided into tennis racket stringing machines, badminton racket stringing machines, and dual-purpose tennis / badminton racket stringing machines; based on different stringing systems, they can be divided into spring-type stringing machines, weighted stringing machines, and computerized stringing machines. A common machine structure includes a clamp that fixes the racket frame and allows it to rotate, an electronically controlled stringing device, and a device for precisely controlling string tension. The computerized control system allows for precise control of the motor using computer technology. In order to ensure that the machine can effectively clamp and position the strings during use, the adjustable string clamping mechanism is a crucial component. To achieve better adjustment and fixation and effectively clamp the strings, the manufacturing and processing costs of existing string tensioning and threading machines remain high. For example, application number TW110214919U discloses a moving structure for the string clamp of a racket threading machine, in which the main fixing components are two mutually cooperating circular inclined surface accessories. The adjustable string clamping mechanism of this application has a complicated processing technology and suffers from high production costs. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a racket computer stringing machine that can overcome the above-mentioned high processing cost, is easy to use, and has a low equipment processing cost.

[0004] The technical solution adopted by this invention to solve its technical problem is: a racket computer-controlled stringing machine, the key being that the racket computer-controlled stringing machine includes a base, a stringing assembly, a racket clamping assembly, and an electrical control system. The stringing assembly and the racket clamping assembly are mounted on the base. The stringing assembly includes a bead clamp component, a stringing component, and an encoder component. The racket clamping assembly includes a rotating seat, a clamping frame component, and a string clamping component. The base includes a support foot and a support platform. The stringing assembly is fixedly connected to the support platform, and the rotating seat is connected to the support platform. The bottom of the rotating seat is rotatably connected to the top of the support seat via a bearing seat. Two sets of clamping frames are provided, arranged diagonally. Two sets of racket clamping assemblies are provided, also arranged diagonally. Both sets of clamping frames and two sets of string clamping components are connected to the rotating seat. The rotating seat is connected to the support platform via a bearing assembly. The wire clamping component includes a wire clamping claw, a pressure block, a top cone block, a side top block, a push block, and an off-axis handle pushing mechanism. The off-axis handle pushing mechanism includes an off-axis, a needle roller bearing mounted on the off-axis, an unlocking component, and a side top block adjusting component. The pressure block passes through a groove on a rotating seat. The wire clamping claw of the wire clamping component is rotatably inserted into the pressure block via a column. The top cone block is fixedly connected above the pressure block. The arc surface of the side top block is correspondingly disposed on the side of the top cone block. The outer surface of the needle roller bearing of the off-axis handle pushing mechanism contacts and connects to the side top block via a push block. The off-axis is connected to the unlocking component. The side top block adjusting component includes a push block, a spur gear with a screw, and an adjusting worm. The screw passes through the push block, the worm is disposed on the side of the push block, and the outer surface of the spur gear corresponds to the side top block.

[0005] The unlocking component includes an unlocking button located on the upper part of the handle, an opening / closing pin, a locking block, and a pad located below the unlocking button; the locking block is connected below the opening / closing pin, and the pad is correspondingly located on the outer edge of the locking block 3365, with a return spring connected to the pad; the handle includes a pressing handle, a handle frame, and a movable pressing tongue, the pressing handle is rotatably connected to the handle frame, the end of the movable pressing tongue is axially connected to the inside of the handle frame, the head of the movable pressing tongue contacts the top of the opening / closing pin, a protrusion is located in the middle of the pressing handle, the protrusion is located above the middle position of the movable pressing tongue, and the pressing handle is fixedly connected to the upper part of the offset shaft by a pin.

[0006] The clamping frame component includes a support base, a knob, a rotating handle, a transmission gear set, a left clamping arm, a right clamping arm, and a protective clamp; the knob, rotating handle, and transmission gear set are disposed inside the support base, the left clamping arm and the right clamping arm are respectively disposed on the left and right sides of the support base, and the protective clamp is disposed on the inner side of the support base.

[0007] The knob is threadedly connected to the drive shaft, which is slidably mounted on the support base. A drive block is fixedly connected to the drive shaft, and the drive block is equipped with a spur rack. The spur rack has spur teeth on both sides, and each of the spur teeth on both sides meshes with a double-layer circular gear. The double-layer circular gear meshes with the drive gears of the left and right clamping arms. The rotating handle can tighten and loosen the drive shaft by rotating the locking screw. A protective clamp is connected to the tail end of the drive shaft.

[0008] The spur rack is fixed inside the spur rack by a pulley system. The drive shaft passes through a sleeve. The sleeve is fixedly connected to the support base by a fixing bolt. The sleeve has a through hole on its side for the locking screw of the rotating handle to pass through. The double-layer circular gear includes a large gear and a small gear. The large gear meshes with the spur rack, and the small gear meshes with the clamping arm gear.

[0009] The bearing assembly between the rotating seat and the support platform also includes an electromagnetic brake, which is electrically connected to the electrical control system.

[0010] The tensioning assembly is fixedly mounted on a support platform. The tensioning assembly includes a fixed bracket, guide shafts, a ball screw, a linkage frame, a tensioning arm, a drive motor, and an encoder. The fixed bracket includes a base plate, a front support seat, a rear support seat, and a motor mount. Two guide shafts are provided, with both ends connected between the front and rear support seats via bearings. A motor is connected to the motor mount, and the motor's output shaft drives the ball screw. The ball screw is rotatably connected between the front and rear support seats and passes through the linkage frame. The tensioning arm is fixedly connected above the linkage frame. A spur rack is fixedly connected to the linkage frame, and the spur rack meshes with a gear on the encoder's output shaft.

[0011] The string tensioning arm includes a tensioning arm body, a guide wheel, a wire clamping block, and a touch switch. The guide wheel is located at the head of the tensioning arm body, and the wire clamping block is located behind the guide wheel. The wire clamping block includes a left wire clamping block and a right wire clamping block. The outer sides of the left and right wire clamping blocks are provided with straight circular grooves, and the depth of the grooves gradually decreases from front to back. Ball bearings are placed in the grooves. A touch switch is located behind the wire clamping block, and the touch switch is electrically connected to the electrical control system.

[0012] The electrical control system includes a central processing unit, a touch panel, a display screen, and a power supply component, and the drive motor is a servo motor.

[0013] The support legs and the support platform are provided with a height adjustment mechanism, which is a lifting column.

[0014] The racket computer stringing machine of this invention uses an improved clamping frame and string clamping component as structural parts, combined with an electrically automated stringing assembly, to achieve fast and effective stringing action. Simultaneously, the improved structure of the string clamping component, employing a side-top block combined with a circular top cone block, significantly reduces production costs and effectively overcomes the wear defects of the double-bevel fit in existing technologies. It greatly improves the processing efficiency of the badminton racket stringing and tightening process, offering advantages such as low overall processing cost, high processing efficiency, and ease of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the rotating seat structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the adjustment structure of the clamping component of the present invention.

[0018] Figure 4 This is a schematic diagram of the main structure of the clamping component of the present invention.

[0019] Figure 5 This is a schematic diagram of the rotating base structure of the present invention.

[0020] Figure 6 This is a schematic diagram of the internal structure of the wire clamping component of the present invention.

[0021] Figure 7 This is a schematic diagram of the off-axis structure of the present invention.

[0022] Figure 8 This is a schematic diagram of the unlocking component structure of the present invention.

[0023] Figure 9 This is a schematic diagram of the internal structure of the clamping frame component of the present invention.

[0024] Figure 10 This is a schematic diagram of the overall structure of the clamping frame component of the present invention.

[0025] Figure 11 This is a schematic diagram of the internal adjustment structure of the clamping frame component of the present invention.

[0026] Figure 12 This is a schematic diagram of the tensioning assembly structure of the present invention.

[0027] Figure 13 This is a schematic diagram of the internal structure of the stringing assembly of the present invention. Detailed Implementation

[0028] like Figures 1 to 7As shown, a racket computer-controlled stringing machine includes a base 10, a stringing assembly 20, a racket clamping assembly 30, and an electrical control system. The stringing assembly and the racket clamping assembly are mounted on the base. The stringing assembly 20 includes a bead clamp component 21, a stringing component 22, and an encoder component 23. The racket clamping assembly 30 includes a rotating base 31, a clamping frame component 32, and a string clamping component 33. The base includes support feet and a support platform 11. The support feet support the ground to provide support for the entire machine. The support platform 11 is mounted on the support feet and is used to place the entire functional body. A height adjustment mechanism is provided between the support feet and the support platform. The string assembly is fixedly connected to the support platform 11. A rotating seat 31 is connected to the support platform 11. The rotating seat 31 is used to change the working angle during string tensioning, allowing the string tensioning device of the machine to tighten the string. The bottom of the rotating seat 31 is rotatably connected to the support platform 11 above the support seat via a bearing seat. Two sets of clamping frame components are provided, arranged diagonally. Two sets of clamping beat components are also provided, arranged diagonally. The two sets of clamping frame components 32 and two sets of string clamping components 33 are symmetrically connected to the rotating seat at four corners. The two sets of clamping frame components 32 are located on the short side of the curved rectangular rotating seat 31, and the two sets of string clamping components 33 are located on the curved rectangular side of the rotating seat 31. The rotating base 31 has a long side; each set of clamping frame components is provided with a C-shaped, encircling left and right frame arms. The clamping frame components and racket clamping assembly arranged diagonally can clamp the outer frame of the badminton racket, and fix the racket on the rotating base by moving in opposite directions, which facilitates the stringing operation; the rotating base 31 is connected to the support platform through a bearing assembly, which includes a turntable cover plate 121, a bearing 122, and an electromagnetic brake 123 connected in sequence; the string clamping component 33 includes a string clamping claw 331, a pressure block 332, a top cone block 333, a side top block 334, a push block 335, and an off-axis handle pushing mechanism 330, the off-axis... The handle pushing mechanism includes an off-axis 336, a needle roller bearing 337 mounted on the off-axis, an unlocking component, and a side top block adjustment component; the pressure block 332 passes through a groove provided on the rotating seat 31, the groove being a straight groove, the pressure block 332 is fixed in the groove from below, and the top cone block moves horizontally with the pressure block; the wire clamping claw of the wire clamping component is rotatably inserted into the pressure block via a column 338, the top cone block 333 is fixedly connected above the pressure block 332, and the arc surface of the side top block is correspondingly provided on the side of the top cone block, the shape of the arc surface of the side top block being adapted to the side of the top cone block; the wire clamping component 33 also includes a housing 339.The outer side of the needle roller bearing of the off-axis handle push mechanism is connected to the side top block through a push block. The off-axis has an eccentric shaft structure in the middle section, with the head and tail ends being normal shafts, and the outer edge is flush with the normal shaft. When the off-axis rotates, the needle roller bearing originally placed in the notch position is in the notch and rotates to the outer shaft plane, thereby driving the needle roller bearing to press against the push block, thereby pressing the side top block and locking it. Preferably, a rotating bearing is provided below the off-axis, and a thrust bearing is provided above the off-axis. Increasing the bearings can improve the smoothness of rotation and improve the lubrication. The off-axis is connected to the unlocking component 3360. The side top block adjustment component includes a push block 335, a spur gear 3352 with a screw, and an adjusting worm gear 3353. The screw of the spur gear 3352 passes through the push block and is screwed into the push block (not shown in the figure). The worm gear is located on the side of the push block, and the outer side of the spur gear is correspondingly set with the side top block. The worm gear drives the spur gear to rotate. Since the spur gear is screwed into the push block, rotation causes it to move back and forth, thus allowing the overall length of the push block to be reduced or increased. The worm gear is rotatably fixed by a worm gear seat 3354 on the push block. The push block is equipped with a thrust spring 3351, one end of which is fixed to the outer casing. A pin passes through the upper end of the offset shaft 336, connecting to a handle, allowing rotation of the handle to drive the offset shaft. The structure where the top cone block and the side top block cooperate and are pushed by the push block effectively reduces production costs and overcomes the defect of the double-sloping surface fit used in the prior art, which cannot effectively fit after wear. The clamping claw 331 is the main body of the existing locking structure and will not be described in detail.

[0029] like Figure 8As shown, the unlocking component 3360 includes an unlocking button located on the upper part of the handle, an opening / closing pin 3364, a locking block 3365, and a pad 3366 located below the unlocking button; the opening / closing pin 3364 is connected to the locking block 3365 below, and the pad is correspondingly provided on the outer edge of the locking block 3365. The pad is connected to a return spring (not shown in the figure); when the handle is rotated to the locked position, the locking direction of the pad is the same as that of the push block, and it is locked under the drive of the spring, preventing the push block from returning to its original position, thereby achieving locking; the handle includes a pressing handle 3361, a handle bracket 3363, and a movable pressing tongue 3362. The pressing handle is rotatably connected to the handle frame. The end of the movable pressure tongue is axially connected inside the handle frame. The head of the movable pressure tongue contacts the top of the opening and closing pin. A protrusion is provided in the middle of the pressing handle, which is positioned above the middle position of the movable pressure tongue. The pressing handle is fixedly connected to the upper part of the offset shaft by a pin. When unlocking is required, the pressing handle is pressed down, causing the movable pressure tongue to press down. Through the lever principle, the movable pressure tongue is pressed down, thereby pressing the opening and closing pin and causing the locking block to move down. Since the diameter of the opening and closing pin is smaller than that of the locking block, the pad that was originally locked by the locking block loses its support and can move, thereby allowing the push block to move backward and achieve unlocking.

[0030] like Figure 9 As shown, the clamping frame component 32 includes a support base 320, a knob 321, a rotating handle 322, a transmission gear set 323, a left clamping arm 324, a right clamping arm 325, and a protective clip 326. The support base 320 is provided with an upper cover 3201. The knob 321, rotating handle, transmission gear set, left clamping arm, right clamping arm, and protective clip are assembled as a whole and can be slidably connected to the support base. The left and right clamping arms are respectively located on the left and right sides of the support base, and the protective clip is located on the inner side of the support base. The left and right clamping arms of the clamping frame component are C-shaped, one on each side, forming an enclosing posture. The left clamping arm 324 and the right clamping arm 325 are provided with a plastic open clamping part 327 at the clamping position. The left and right clamping arms are mounted on the upper part of the support base. The support base contains a transmission gear set 323. The knob is threadedly connected to a transmission shaft. The rotating handle has a screw shaft, the external thread of which is rotatably connected to an internal thread opening on the side end of the support base (not shown in the figure). The end of the output shaft of the rotating handle is aligned with the groove of the transmission shaft 3231 in the locking transmission gear set. The protective clamp 326 clamps the racket as the entire transmission gear set 323 moves outward.

[0031] like Figure 10As shown, the knob 321 is threadedly connected to the drive shaft 3231. The drive shaft is slidably connected to the support base via a sleeve. A drive block is fixedly connected to the drive shaft. The drive block is equipped with a spur rack 3234, with spur teeth on both sides. Each of the spur teeth on both sides meshes with a double-layer circular gear 3233. The double-layer circular gear meshes with the drive gears 3232 of the left and right clamping arms. The rotating handle tightens and loosens the drive shaft by rotating the locking screw. When the drive shaft is locked, the left and right clamping arms can be tightened and loosened by rotating the knob. The tightening adjustment is performed step by step. The tail end of the transmission shaft is connected to a protective clamp. The transmission gear set also includes a drive gear 3232, a double-layer circular gear 3233, and a spur rack 3234 mounted on the rotating shaft. The gears are connected to one stage of the double-layer circular gear 3233, and the other stage of the double-layer circular gear is connected to the spur rack 3234. The spur rack has one side of spur teeth on the left and right sides, for a total of double-sided spur teeth. The left and right clamping arms are each connected to one side of spur teeth via the double-layer circular gear. The spur rack is connected to the transmission shaft 3231 via a spur rack seat 3235. In the initial adjustment stage, the protective clamp is moved outward or inward by sliding the transmission shaft back and forth. Moving it outward pushes and clamps the racket frame. Then, the transmission shaft can be locked in the forward and backward sliding direction by turning the rotary handle. Then, the transmission gear set is driven by the knob to drive the left and right clamping arms to tighten synchronously, further clamping the racket frame. The badminton frame is securely fixed in place by the inner and outer clamps of the left and right clamps and the protective clamp.

[0032] like Figure 9 As shown, the spur rack 3234 is fixed inside the spur rack 3235 by a pulley block 3236. The drive shaft passes through the sleeve, and the inner wall of the sleeve is adapted to the drive shaft. The sleeve is fixedly connected to the support base by a fixing bolt 3237, thereby realizing sliding within the support base. The sleeve has a through hole on its side for the locking screw of the rotating handle to pass through, and another hole in the sleeve for the fixing bolt to connect. The double-layer circular gear includes a large gear and a small gear. The large gear meshes with the spur gear, and the small gear meshes with the clamping arm gear.

[0033] like Figure 5 As shown, the bearing assembly between the rotating seat 31 and the support platform also includes an electromagnetic brake 123, which is electrically connected to the electrical control system. The electromagnetic brake can lock the rotating seat when the string is tensioned.

[0034] like Figures 12 to 13As shown, the tensioning assembly 20 is fixedly mounted on the support platform. The tensioning assembly includes a fixed bracket, guide shafts 202, ball screws 203, a linkage frame 204, a tensioning arm 205, a drive motor 206, and an encoder 207. The fixed bracket includes a base plate 2011, a front support 2012, a rear support 2013, and a motor mount 2061. Two guide shafts 202 are provided, fixed to the front support 2012 and the rear support 2013 by linear bearings. An upper support frame 209 is provided between the tops of the front support 2012 and the rear support 2013. A pressure spring 208 is provided between the front support 2012 and the linkage frame 204. A motor 206 is connected to the motor mount 2061. The motor's output shaft drives a ball screw 203. Two guide shafts 202 are respectively positioned above and below the ball screw. The two ends of the ball screw are rotatably connected between the front support and the rear support. The ball screw 203 passes through the linkage frame 204 and is rotatably fixed through the screw bearing seat 2031. The tension arm 205 is fixedly connected above the linkage frame 204. A spur rack 2041 is fixedly connected to the linkage frame, and the spur rack meshes with the gear on the encoder's output shaft. The encoder is electrically connected to the electrical control system. An encoder 207 is fixed to the support platform and is used to detect the displacement value of the linkage frame.

[0035] The tensioning arm includes a tensioning arm body, a guide wheel, a wire clamping block, and a touch switch. The guide wheel is located at the head of the tensioning arm body, and the wire clamping block is located behind the guide wheel. The wire clamping block includes a left clamping block and a right clamping block. The outer sides of the left and right clamping blocks have straight circular grooves, the depth of which gradually decreases from front to back. Ball bearings are placed in the grooves. A touch switch is located behind the clamping blocks and is electrically connected to an electrical control system. When the touch switch is touched, it opens, and the sliding frame moves backward. During this movement, the ball bearings slide to the lower groove, causing the left and right clamping plates to move closer together to clamp the string, and the movement continues to tighten it. When the system detects that the displacement has reached a preset value, the backward movement stops.

[0036] The electrical control system includes a central processing unit, a touch panel, a display screen, and a power supply component; the drive motor is a servo motor. Alternatively, a servo motor can be used.

[0037] A height adjustment mechanism, a lifting column, is provided between the supporting legs and the supporting platform. The lifting column is connected by an inner and outer sleeve, and a drive device is provided between the inner and outer sleeves. The drive device is a gear drive assembly. The drive device is electrically connected to the electrical control system.

[0038] The control motor and control switch in the electrical control system are existing technologies and will not be described in detail here.

[0039] The above-disclosed embodiments are merely a few specific examples of the present invention, but the present invention is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A racquet computerized stringing machine characterized in that The racket computer stringing machine includes a base, a stringing assembly, a racket clamping assembly, and an electrical control system. The stringing assembly and racket clamping assembly are mounted on the base. The stringing assembly includes a bead clamp component, a stringing component, and an encoder component. The racket clamping assembly includes a rotating seat, a clamping frame component, and a string clamping component. The base includes support feet and a support platform. The stringing assembly is fixedly connected to the support platform, and the rotating seat is connected to the support platform. The bottom of the rotating seat is rotatably connected to the top of the support seat via a bearing seat. Two sets of clamping frames are provided, arranged diagonally. Two sets of racket clamping assemblies are provided, arranged diagonally. Both sets of clamping frames and two sets of string clamping components are connected to the rotating seat. The rotating seat is connected to the support platform via a bearing assembly. The string clamping component includes string clamping claws, a pressure block, and a top cone block. The device comprises a side top block, a push block, and an off-axis handle pushing mechanism. The off-axis handle pushing mechanism includes an off-axis, a needle roller bearing mounted on the off-axis, an unlocking component, and a side top block adjusting component. The pressure block passes through a groove on a rotating seat. The clamping claw of the wire clamping component is rotatably inserted into the pressure block via a column. The top cone block is fixedly connected above the pressure block. The arc surface of the side top block is correspondingly disposed on the side of the top cone block and is coaxially disposed with the top cone block. The outer surface of the needle roller bearing of the off-axis handle pushing mechanism contacts and connects to the side top block via a push block. The off-axis is connected to the unlocking component. The side top block adjusting component includes a push block, a spur gear with a screw, and an adjusting worm. The screw passes through the push block, the worm is disposed on the side of the push block, and the outer surface of the spur gear is correspondingly disposed with the side top block.

2. The racquet computer pull-wire machine of claim 1, wherein The unlocking component includes an unlocking button located on the upper part of the handle, an opening / closing pin, a locking block, and a pad located below the unlocking button; the locking block is connected below the opening / closing pin, and the pad is correspondingly located on the outer edge of the locking block, with a return spring connected to the pad; the handle includes a pressing handle, a handle frame, and a movable pressing tongue, the pressing handle being rotatably connected to the handle frame, the end of the movable pressing tongue being axially connected to the inside of the handle frame, the head of the movable pressing tongue contacting the top of the opening / closing pin, a protrusion located in the middle of the pressing handle, the protrusion being positioned above the middle position of the movable pressing tongue, and the pressing handle being fixedly connected to the upper part of an off-axis by a pin.

3. The racket computer stringing machine according to claim 1, characterized in that... The clamping frame component includes a support base, a knob, a rotating handle, a transmission gear set, a left clamping arm, a right clamping arm, and a protective clamp; the knob, rotating handle, and transmission gear set are disposed inside the support base, the left clamping arm and the right clamping arm are respectively disposed on the left and right sides of the support base, and the protective clamp is disposed on the inner side of the support base.

4. The racket computer stringing machine according to claim 3, characterized in that... The knob is threadedly connected to a drive shaft, which is slidably mounted on a support base. A drive block is fixedly connected to the drive shaft, and the drive block is equipped with a spur rack. The spur rack has spur teeth on both sides, and each of the spur teeth on both sides meshes with a double-layer circular gear. The double-layer circular gear meshes with the drive gears of the left and right clamping arms. The rotating handle can tighten and loosen the drive shaft by rotating the locking screw. The tail end of the drive shaft is connected to a protective clamp.

5. The racket computer stringing machine according to claim 4, characterized in that... The spur rack is fixed inside the spur rack by a pulley system. The drive shaft passes through a sleeve. The sleeve is fixedly connected to the support base by a fixing bolt. The sleeve has a through hole on its side for the locking screw of the rotating handle to pass through. The double-layer circular gear includes a large gear and a small gear. The large gear meshes with the spur rack, and the small gear meshes with the clamping arm gear.

6. The racket computer stringing machine according to claim 5, characterized in that... The bearing assembly between the rotating seat and the support platform also includes an electromagnetic brake, which is electrically connected to the electrical control system.

7. The racket computer stringing machine according to claim 6, characterized in that... The tensioning assembly is fixedly mounted on a support platform. The tensioning assembly includes a fixed bracket, guide shafts, a ball screw, a linkage frame, a tensioning arm, a drive motor, and an encoder. The fixed bracket includes a base plate, a front support seat, a rear support seat, and a motor mount. Two guide shafts are provided, fixed to the front and rear support seats via linear bearings. A motor is connected to the motor mount, and the motor's output shaft drives the ball screw. The ball screw is rotatably connected at both ends between the front and rear support seats and passes through the linkage frame. The tensioning arm is fixedly connected above the linkage frame. A spur rack is fixedly connected to the linkage frame, and the spur rack meshes with a gear on the encoder's output shaft.

8. The racket computer stringing machine according to claim 7, characterized in that... The string tensioning arm includes a tensioning arm body, a guide wheel, a wire clamping block, and a touch switch. The guide wheel is located at the head of the tensioning arm body, and the wire clamping block is located behind the guide wheel. The wire clamping block includes a left wire clamping block and a right wire clamping block. The outer sides of the left and right wire clamping blocks are provided with straight circular grooves, and the depth of the grooves gradually decreases from front to back. Ball bearings are placed in the grooves. A touch switch is located behind the wire clamping block, and the touch switch is electrically connected to the electrical control system.

9. The racket computer stringing machine according to claim 8, characterized in that... The electrical control system includes a central processing unit, a touch panel, a display screen, and a power supply component, and the drive motor is a servo motor.

10. The racket computer stringing machine according to claim 9, characterized in that... The support legs and the support platform are provided with a height adjustment mechanism, which is a lifting column.

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