A positioning fixture for machining eccentric ball castings

Abstract

This invention relates to the field of eccentric sphere casting processing technology, specifically a positioning fixture for eccentric sphere casting processing. The fixture includes a ring body, with a fixing mechanism on one side and a connecting mechanism on the other side. The fixing mechanism is equipped with an adjusting mechanism. In this invention, the spherical casting is placed inside the fixing mechanism, and the drive mechanism controls the adjusting mechanism to position the casting. Then, the fixing mechanism is activated to fix the casting. Next, the connecting mechanism is connected to the machine tool's four-jaw chuck. The positional relationship between the casting's center and the chuck's rotation center is adjusted as needed using the connecting mechanism. The machine tool is then started to process the casting. During processing, the drive mechanism can be activated in conjunction with the adjusting mechanism to move the casting, causing the surface position of the spherical casting to change. This facilitates the user in fixing the casting and adjusting its eccentric rotation, as well as adjusting the casting's surface position, thus making the casting processing easier.

Description

TECHNICAL FIELD

[0001] The present application relates to eccentric ball casting processing technical field, specifically to a kind of positioning tool for eccentric ball casting processing. BACKGROUND

[0002] When the numerical control machine tool is machining workpiece, the tool is usually fixed and the machine tool drives the workpiece to rotate. However, when the ball casting is machined by the machine tool, the four-jaw chuck and three-jaw chuck commonly used in the machine tool are not convenient to fix the ball workpiece because the surface of the ball is curved. In addition, the ball casting may need to be eccentrically machined according to the machining needs, that is, the center of the workpiece is offset from the center of the machine tool rotation, so that when the machine tool drives the workpiece to rotate, the workpiece revolves around the center of the machine tool and is machined by the tool. When the ball casting is machined by the worker, machining holes, grooves or other machining operations may be needed on the surface of the casting. In actual machining, the user needs to frequently adjust the position of the surface of the ball casting for machining, which is inconvenient. SUMMARY

[0003] The present application aims to provide a positioning tool for eccentric ball casting processing to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A positioning tool for eccentric ball casting processing includes a ring body, a fixing mechanism is arranged on one side of the ring body, and a connecting mechanism is arranged on the other side of the ring body. The fixing mechanism is matched with an adjusting mechanism, and the adjusting mechanism is matched with a driving mechanism.

[0006] The fixing mechanism includes a fixed ring, and one side of the fixed ring is fixedly connected with one side of the ring body. An annular clamping groove is formed in the inner wall of the fixed ring, and a tooth ring is arranged inside the fixed ring. One side of the tooth ring is rotatably clamped inside the annular clamping groove. A plurality of sliding holes are formed in the outer wall of the ring body, and an L-shaped sliding rod is arranged at each sliding hole. The long arm of each L-shaped sliding rod is slidably sleeved in the adjacent sliding hole. The short arm of each L-shaped sliding rod is fixedly connected with a pull rope at one end. The pull rope is inserted into the inner wall of the ring body at one end, and the pull rope is fixedly connected with the outer wall of the tooth ring at the other end. The long arm of each L-shaped sliding rod is fixedly connected with a contact cylinder at one end.

[0007] Further, the outer wall of the fixed ring is fixedly connected with a motor box through a mounting bracket, and a driving motor is arranged inside the motor box. The motor shaft of the driving motor is fixedly connected with a main gear. A notch is formed in the outer wall of the fixed ring, and the main gear is located inside the notch and engages with the tooth ring.

[0008] Furthermore, the connecting mechanism includes a connecting frame, which is C-shaped. Both ends of the connecting frame are fixedly connected to the other side of the ring body, and a slide rail is fixedly connected to one side of the connecting frame. A clamping block is slidably engaged inside the slide rail.

[0009] Furthermore, the connecting frame has two fixed support plates on one side, and a screw is rotatably connected between the two support plates. The outer wall of the clamping block has a threaded hole, and the inner wall of the threaded hole is screwed into the outer wall of the screw.

[0010] Furthermore, the adjusting mechanism includes two washboards, each with a guide rod fixedly connected to its top. Each guide rod has a lead screw at its top, and each guide rod has a screw-fitting hole at its top where its inner sidewall engages with the outer sidewall of the adjacent lead screw. Both lead screws are movably connected to the driving mechanism, and each guide rod has a slidably fitted frame on its outer side. Each frame has a retaining rail on its adjacent side, and each frame is slidably engaged within the retaining rail. Two connecting rods are positioned between the retaining rails, and each connecting rod has an insertion hole at its top center. The driving mechanism has a fixed rod fixedly connected to its bottom end, and the outer sidewall of the fixed rod is rotatably fitted with the inner sidewall of the two insertion holes. Each connecting rod has a retaining block rotatably connected to both ends. Each retaining rail has a sliding groove on its adjacent side, and the two retaining blocks at both ends of the same connecting rod are slidably engaged within the two sliding grooves.

[0011] Furthermore, the driving mechanism includes a housing, with circular holes on both sides of the housing. An annular shell is rotatably fitted between the two circular holes. Guide grooves are provided on both sides of the annular shell, and the two guide grooves are arranged diagonally with the center of the annular shell as the center. A slider is rotatably fitted at one end of the outer wall of each of the two lead screws, and the two sliders are respectively slidably engaged in the two guide grooves. Two driving rods are provided inside the annular shell, and both ends of the two driving rods are rotatably connected to the inner wall of the annular shell. A fixed box is fixedly connected to the outer wall of the annular shell, and a stepper motor is provided inside the fixed box. The motor shaft of the stepper motor is fixedly connected to one end of a driving rod, and a transmission belt is rotatably fitted between the outer walls of the two driving rods. Connecting blocks are rotatably connected to both sides of the transmission belt, and one end of each of the two connecting blocks is rotatably connected to one end of each of the two lead screws. The top end of the fixed rod is fixedly connected to the bottom surface of the housing.

[0012] Furthermore, the annular shell has two drive rollers rotatably connected between its two opposite sides, and two toothed belts are rotatably sleeved between the outer walls of the two drive rollers. The outer walls of the two lead screws are fixedly sleeved with auxiliary gears, and the two toothed belts mesh with the two auxiliary gears respectively. A protective box is fixedly connected to one side of the annular shell, and a servo motor is installed inside the protective box. The motor shaft of the servo motor is fixedly connected to one end of a drive roller. Two limiting rods are fixedly connected to the two opposite inner walls of the annular shell, and two sliders are slidably engaged between the two adjacent limiting rods respectively.

[0013] Furthermore, the inner wall of the box is rotatably connected to a rotating rod, and a drive gear is fixedly sleeved on the outer wall of the rotating rod. A drive box is fixedly connected to one side of the box, and a power motor is installed inside the drive box. The motor shaft of the power motor is fixedly connected to one end of the rotating rod. Multiple tooth blocks are fixedly connected to the outer wall of the annular shell, and the drive gear meshes with adjacent tooth blocks.

[0014] Furthermore, a support plate is fixedly connected between the two opposing inner sidewalls of the annular shell, and the support plate has a hollow box-shaped structure. An electromagnet is installed inside the support plate, and iron wires are fixedly sleeved inside both toothed belts.

[0015] Furthermore, the box body is equipped with a U-shaped frame, and each of the two arms of the U-shaped frame has a moving slot on one side. A connecting box is fixedly connected to the top surface of the U-shaped frame, and an electric hoist is installed inside the connecting box. A lifting rope is fixedly wound on the electric hoist, and a sliding plate is fixedly connected to one end of the lifting rope. The two ends of the sliding plate are respectively slidably engaged in the two moving slots, and the bottom surface of the sliding plate is fixedly connected to the top surface of the box body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By placing the spherical casting into the fixing mechanism, and then using the drive mechanism to control the adjustment mechanism to position the casting so that the center of the casting and the center of the ring are on the same vertical plane, the fixing mechanism is then activated to fix the casting. Next, the connecting mechanism is connected to the machine tool's four-jaw chuck. Then, as needed, the connecting mechanism is adjusted to make the casting deviate from the rotation center of the four-jaw chuck, thus causing the casting to rotate eccentrically. The machine tool is then started to process the casting. During processing, the drive mechanism can be activated in conjunction with the adjustment mechanism to rub the casting, causing the surface position of the spherical casting to change. This facilitates the user in fixing the spherical casting, adjusting the eccentric rotation of the casting, and adjusting the surface position of the casting, thus making it easier for the user to process the casting.

[0018] 2. In use, place the casting inside the ring body, then start the drive mechanism and adjustment mechanism to make the casting be clamped by the adjustment mechanism, so that the center of the casting and the center of the ring body are in the same vertical plane. Then start the drive motor to make the main gear drive the gear ring to rotate, so that the gear ring pulls multiple ropes to drive multiple L-shaped slide bars to move synchronously, so that multiple L-shaped slide bars drive adjacent contact cylinders to move synchronously, so that multiple contact cylinders synchronously contact the surface of the casting to fix the casting. The user can use the machine tool's four-jaw chuck to clamp the clamping block, and then the user can turn the screw as needed to drive the ring body and the casting to move, so that the center of the casting is aligned with the center of the four-jaw chuck for normal processing, or the center of the casting is deviated from the center of the four-jaw chuck for eccentric processing of the casting.

[0019] 3. In use, by activating the electromagnet, the two toothed belts are attracted and tightened. The drive motor is then activated to slightly loosen the multiple contact cylinders from the casting. The servo motor then drives the two toothed belts to rotate synchronously via the drive roller. This causes the two toothed belts to drive the two auxiliary gears, which in turn drive the two lead screws to rotate synchronously. This causes the two lead screws to move the two guide rods in opposite directions on adjacent lead screws, and also causes the two rubbing plates to move in opposite directions, clamping the casting from both sides. The user can then turn off the electromagnet, loosening the two toothed belts. The stepper motor then drives the adjacent drive rod, which in turn drives the transmission ring belt to rotate. This causes the transmission ring belt to drive the two lead screws in opposite directions within adjacent guide grooves, causing the two rubbing plates to move in opposite directions to rub the casting, thus adjusting the surface position of the casting. The user can also activate the power motor to drive the drive gear, which in turn drives the annular shell to rotate, adjusting the orientation of the two guide grooves and thus the movement direction of the two lead screws and adjacent rubbing plates.

[0020] 4. When in use, the electric hoist can be started to release or retract the hoisting rope. The hoisting rope is used to control the height of the box and the two washboards, and the sliding plate is used to always keep the center of the box and the center of the ring in the same vertical plane. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is an exploded view of the fixing mechanism structure in this invention;

[0023] Figure 3 This is an exploded view of the connecting mechanism structure in this invention;

[0024] Figure 4 This is a schematic diagram showing the positional relationship between the adjustment mechanism and the drive mechanism in this invention;

[0025] Figure 5 This is a schematic diagram of the adjustment mechanism structure in this invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the box in this invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the annular shell in this invention;

[0028] Figure 8 This is an exploded view of the drive mechanism structure in this invention.

[0029] In the diagram: 100, ring body; 101, sliding hole; 200, fixing mechanism; 210, fixing ring; 211, annular groove; 212, notch; 220, gear ring; 230, L-shaped slide rod; 231, pull rope; 232, contact cylinder; 240, motor box; 241, main gear; 300, connecting mechanism; 310, connecting frame; 320, slide rail; 330, clamping block; 331, threaded hole; 340, screw; 400, adjusting mechanism; 410, washboard; 411, guide rod; 420, lead screw; 421, auxiliary gear; 430, clamping rail; 431, clamping block; 432 433. Connecting rod; 440. Fixing rod; 450. Sleeve frame; 451. U-shaped frame; 460. Moving groove; 461. Connecting box; 462. Lifting rope; 500. Slide plate; 501. Drive mechanism; 502. Limiting rod; 503. Support plate; 510. Box body; 521. Annular shell; 522. Tooth block; 523. Guide groove; 524. Fixing box; 530. Slider; 540. Drive rod; 541. Transmission belt; 542. Connecting block; 550. Drive roller; 551. Toothed belt; 552. Protective box; 560. Rotating rod; 561. Drive gear; 562. Drive box. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-8 In this embodiment of the invention, a positioning fixture for processing an eccentric ball casting includes a ring body 100, a fixing mechanism 200 is provided on one side of the ring body 100, and a connecting mechanism 300 is provided on the other side of the ring body 100. The fixing mechanism 200 is equipped with an adjusting mechanism 400, and the adjusting mechanism 400 is equipped with a driving mechanism 500.

[0032] The fixing mechanism 200 includes a fixing ring 210, one side of which is fixedly connected to one side of the ring body 100. An annular groove 211 is provided on the inner wall of the fixing ring 210, and a toothed ring 220 is provided inside the fixing ring 210. One side of the toothed ring 220 is rotatably engaged inside the annular groove 211. A plurality of sliding holes 101 are provided on the outer wall of the ring body 100, and an L-shaped sliding rod 230 is provided at each of the plurality of sliding holes 101. The long arms of the plurality of L-shaped sliding rods 230 are slidably sleeved inside the adjacent sliding holes 101, and a pull rope 231 is fixedly connected to one end of each of the short arms of the plurality of L-shaped sliding rods 230. One end of each of the plurality of pull ropes 231 passes through the inner wall of the ring body 100, and one end of each of the plurality of pull ropes 231 is fixedly connected to the outer wall of the toothed ring 220. A contact cylinder 232 is fixedly connected to one end of each of the plurality of L-shaped sliding rods 230.

[0033] Specifically, a spherical casting is placed inside the ring 100, and the drive mechanism 500 controls the adjustment mechanism 400 to limit the spherical casting so that it always remains inside the ring 100. Then, the ring 100 is fixed to the four-jaw chuck of the machine tool using the connecting mechanism 300. Next, a person rotates the gear ring 220, causing it to pull multiple pull ropes 231 synchronously. This causes the multiple pull ropes 231 to synchronously drive adjacent L-shaped slide bars 230 to slide equidistantly, thus... Multiple contact cylinders 232 contact the surface of the spherical casting, causing the multiple contact cylinders 232 to contact and fix the casting at the center of the ring 100, thereby positioning and fixing the spherical casting. Then, the adjusting mechanism 400 is moved away, fixing the spherical casting inside the ring 100. Then, the machine tool is started to process the casting. During the processing, the drive mechanism 500 can be started to control the adjusting mechanism 400 to adjust the position of the spherical casting, thereby facilitating the processing of the spherical casting by the user.

[0034] Example 1

[0035] like Figures 2-3 As shown, in this embodiment, the outer wall of the fixing ring 210 is fixedly connected to the motor box 240 by the mounting bracket, and the motor box 240 is provided with a drive motor. The motor shaft of the drive motor is fixedly connected to the main gear 241. The outer wall of the fixing ring 210 has a notch 212, and the main gear 241 is located inside the notch 212 and meshes with the gear ring 220.

[0036] In this embodiment, an electromagnetic brake is provided on the drive motor. When the drive motor is not started, the motor shaft is fixed by the electromagnetic brake. By starting the drive motor, the main gear 241 is driven to rotate, thereby causing the main gear 241 to drive the gear ring 220 to rotate, which in turn pulls multiple ropes 231 to drive adjacent L-shaped slide bars 230 to move synchronously. The user can control the start and stop of the drive motor through the control device, which is convenient for the user. The drive motor can be powered by a wire with a rotating wire connector. The rotating wire connector is a prior art technology. This connector can rotate and be powered, so that the power supply of the drive motor is not easily affected when the machine tool drives the ring 100 to rotate.

[0037] like Figures 2-3 As shown, in this embodiment, the connecting mechanism 300 includes a connecting frame 310, which is C-shaped. Both ends of the connecting frame 310 are fixedly connected to the other side of the ring 100, and a slide rail 320 is fixedly connected to one side of the connecting frame 310. A clamping block 330 is slidably engaged inside the slide rail 320.

[0038] In practice, when using the machine tool, the clamping block 330 is fixed to the four-jaw chuck. If eccentric machining is required on the spherical casting, the operator can adjust the position of the sphere inside the ring 100 by sliding the clamping block 330, so that the center of the sphere and the center of the four-jaw chuck are not on the same central axis, while the axis of the eccentric part to be machined is on the same central axis as the four-jaw chuck. Then, when the machine tool is started and the four-jaw chuck drives the ring 100 and the casting to rotate through the clamping block 330, the casting will rotate around the central axis of the eccentric part, which makes it easier for the operator to perform eccentric machining.

[0039] like Figure 3 As shown, in this embodiment, support plates are fixedly connected to both ends of one side of the connecting frame 310, and a screw 340 is rotatably connected between the two support plates. A threaded hole 331 is opened on the outer wall of the clamping block 330, and the inner wall of the threaded hole 331 is screwed into the outer wall of the screw 340.

[0040] In practice, when adjusting the position of the clamping block 330, the user can adjust the position of the clamping block 330 by rotating the screw 340, and fix the position of the clamping block 330 by utilizing the self-locking characteristic of the thread.

[0041] Example 2

[0042] Based on Embodiment 1, the spherical casting is adjusted and limited by setting an adjustment mechanism 400 and a drive mechanism 500.

[0043] like Figure 5As shown, in this embodiment, the adjusting mechanism 400 includes two washboards 410, and each washboard 410 is fixedly connected to a guide rod 411 at its top. Each guide rod 411 has a lead screw 420 at its top, and each guide rod 411 has a screwing hole at its top where its inner sidewall engages with the outer sidewall of the adjacent lead screw 420. Both lead screws 420 are movably connected to the driving mechanism 500, and each guide rod 411 has a slidably fitted frame 440 on its outer side. Each frame 440 has a retaining rail 430 on an adjacent side, and the two frames 440 are... The two connecting rods 432 are respectively slidably engaged with the two rails 430 on their adjacent sides. The two connecting rods 432 are provided between the two rails 430, and the center of the top surface of the two connecting rods 432 is provided with an insertion hole. The bottom end of the drive mechanism 500 is fixedly connected to a fixing rod 433, and the outer wall of the fixing rod 433 is rotatably sleeved with the inner wall of the two insertion holes. The two connecting rods 432 are rotatably connected with a locking block 431 at both ends. The two rails 430 are provided with a sliding groove on their adjacent sides. The two locking blocks 431 at both ends of the same connecting rod 432 are respectively slidably engaged with the two sliding grooves.

[0044] In specific implementation, the two clamping rails 430 are limited by the fixing rod 433 and the two connecting rods 432 to keep them parallel. The two guide rods 411 are limited by the two sleeves 440 to keep them vertical. When the spherical casting is initially placed inside the ring 100, the drive mechanism 500 is located directly above the ring 100. The user can synchronously rotate the two lead screws 420 to move the two guide rods 411 and the adjacent washers 410 towards each other, causing the two washers 410 to clamp the spherical casting and move the center of the spherical casting so that it is in the same vertical plane as the center of the ring 100. Then, the fixing mechanism 200 is activated to fix the casting. The user can then adjust the relative position of the spherical casting and the machine tool four-jaw chuck using the connecting mechanism 300. Finally, the drive mechanism 500 and the adjusting mechanism 400 are activated. 00 is removed, and then the machine tool is started for processing. When it is necessary to adjust the surface of the casting during processing, the user can reset the drive mechanism 500 and the adjustment mechanism 400. Then, by moving the two rubbing plates 410, the two rubbing plates 410 clamp the ball, and start the fixing mechanism 200, so that the toothed ring 220 rotates slightly, so that the multiple contact cylinders 232 are partially disengaged from the casting. By moving the position of the two rubbing plates 410, the two rubbing plates 410 move while clamping the casting, so that the rubbing plates 410 move and drive the casting to rotate at the same time. The two rubbing plates 410 move simultaneously from opposite sides of the ball casting, so as to rub the ball casting to rotate, thereby adjusting the surface of the casting to cooperate with the machine tool for processing. The contact surface between the rubbing plate 410 and the casting is covered with a material with high friction with the surface of the casting, so that the rubbing plate 410 can rub the casting to rotate and thus adjust its surface position.

[0045] like Figures 5-6As shown, in this embodiment, the drive mechanism 500 includes a housing 510, and the housing 510 has circular holes on both sides. An annular shell 520 is rotatably sleeved between the two circular holes. The annular shell 520 has guide grooves 522 on both sides, and the two guide grooves 522 are arranged diagonally with the center of the annular shell 520 as the center. A slider 530 is rotatably sleeved at one end of the outer wall of each of the two lead screws 420, and the two sliders 530 are respectively slidably engaged in the two guide grooves 522. Two drive rods 540 are provided inside the annular shell 520. Both ends of the moving rod 540 are rotatably connected to the inner sidewall of the annular shell 520. A fixed box 523 is fixedly connected to the outer sidewall of the annular shell 520. A stepper motor is installed inside the fixed box 523. The motor shaft of the stepper motor is fixedly connected to one end of a driving rod 540. A transmission ring belt 541 is rotatably sleeved between the outer sidewalls of the two driving rods 540. Connecting blocks 542 are rotatably connected to both sides of the transmission ring belt 541. One end of each of the two connecting blocks 542 is rotatably connected to one end of each of the two lead screws 420. The top end of the fixed rod 433 is fixedly connected to the bottom surface of the box 510.

[0046] In practical implementation, the two sliders 530 can limit the lead screws 420, ensuring that the two lead screws 420 remain perpendicular to the opposite sides of the annular shell 520. The user starts a stepper motor to rotate the adjacent drive rods 540, causing the transmission belt 541 to rotate between the two drive rods 540. Two connecting blocks 542 are located on either side of the transmission belt 541, allowing the two lead screws 420 to move synchronously and in opposite directions when the transmission belt 541 rotates. This adjusts the position of the two lead screws 420, and simultaneously adjusts the position of the two washboards 410 via the two lead screws 420 and the adjacent guide rods 411, causing the two washboards 410 to move in opposite directions and rotate the casting. One end of each of the two guide grooves 522 is parallel to the central axis of the annular shell 520. After the user moves the two lead screws 420 to one end of the adjacent guide groove 522 by starting the stepper motor, and then rotates... The annular shell 520 allows adjustment of the movement direction of the two lead screws 420, thereby adjusting the rubbing direction of the two rubbing plates 410. During the rubbing process, the casting is located between multiple contact cylinders 232, and there is a small gap between the surface of the casting and some of the contact cylinders 232, allowing the casting to rotate. After the two rubbing plates 410 rub the ball to rotate, the drive motor can be started to drive the gear ring 220 to rotate, causing the multiple contact cylinders 232 to quickly contact and fix the casting. Then, the user can rotate the two rubbing plates 410 to detach from the casting via the lead screws 420, and then reset the lead screws 420 to one end of the adjacent guide groove 522. The lead screws 420 are then rotated again to make the two rubbing plates 410 contact the casting again, and the stepper motor is started again to drive the two lead screws 420 and the adjacent rubbing plates 410 to rotate, thereby rubbing the casting to make it rotate. Through repeated rubbing, the surface of the casting is rotated to a suitable position, thus cooperating with the machine tool to process the casting.

[0047] like Figures 7-8 As shown, in this embodiment, two drive rollers 550 are rotatably connected between opposite sides of the annular shell 520, and two toothed belts 551 are rotatably sleeved between the outer walls of the two drive rollers 550. The outer walls of the two lead screws 420 are fixedly sleeved with auxiliary gears 421, and the two toothed belts 551 mesh with the two auxiliary gears 421 respectively. A protective box 552 is fixedly connected to one side of the annular shell 520, and a servo motor is provided inside the protective box 552. The motor shaft of the servo motor is fixedly connected to one end of a drive roller 550. Two limiting rods 501 are fixedly connected to the two opposite inner walls of the annular shell 520, and two sliders 530 are slidably engaged between the two adjacent limiting rods 501 respectively.

[0048] In practical implementation, during use, the user can start the servo motor to drive the adjacent drive roller 550 to rotate, thereby causing the drive roller 550 to drive the two toothed belts 551 to rotate synchronously between the two drive rollers 550. The two toothed belts 551 drive the adjacent auxiliary gears 421 and lead screws 420 to rotate synchronously, while the two guide rods 411 are limited by the adjacent sleeves 440, so that the two lead screws 420 can rotate synchronously and drive the adjacent guide rods 411 and the washboards 410 to move synchronously. The two lead screws 420 rotate in opposite directions, and the two toothed belts 551 drive the two auxiliary gears 421 and the adjacent lead screws 420 to rotate in the same direction, so that when the two lead screws 420 rotate synchronously, they can drive the two washboards 410 to move synchronously and in opposite directions on the adjacent lead screws 420 by the same distance.

[0049] like Figures 6-8 As shown, in this embodiment, a rotating rod 560 is rotatably connected to one inner side wall of the box body 510, and a drive gear 561 is fixedly sleeved on the outer side wall of the rotating rod 560. A drive box 562 is fixedly connected to one side of the box body 510, and a power motor is provided inside the drive box 562. The motor shaft of the power motor is fixedly connected to one end of the rotating rod 560. Multiple tooth blocks 521 are fixedly connected to the outer side wall of the annular shell 520, and the drive gear 561 meshes with adjacent tooth blocks 521. A support plate 502 is fixedly connected between two opposite inner side walls of the annular shell 520, and the support plate 502 is a hollow box-shaped structure. An electromagnet is provided inside the support plate 502, and iron wires are fixedly sleeved inside both toothed belts 551.

[0050] In practical implementation, during use, the power motor can be started to drive the rotating rod 560 to rotate, which in turn drives the annular shell 520 to rotate via the drive gear 561. Both the power motor and the stepper motor are equipped with electromagnetic brakes, preventing their shafts from rotating when they are not started. Users can control the start and stop times and durations of the power motor, stepper motor, and servo motor via control equipment. This allows the two washboards 410 to be automatically rubbed against the casting by the self-starting power motor, stepper motor, and servo motor, facilitating user operation. Furthermore, during use, the two toothed belts 551 have annular iron wires embedded inside, and the electromagnet is located on the top surface of the support plate 502. When the lead screw 420 needs to rotate... When in motion, the electromagnet can be activated to attract the iron wires inside the two toothed belts 551, thereby tightening the two toothed belts 551. This causes the two drive rollers 550 to drive the two toothed belts 551 to rotate synchronously. When the two lead screws 420 slide in the adjacent guide grooves 522, the electromagnet is turned off, causing the two toothed belts 551 to relax. The two toothed belts 551 will not drive the adjacent drive rollers 550 to rotate, so that when the lead screws 420 move, they can drive the toothed belts 551 to move synchronously. Each of the two drive rollers 550 has two annular grooves, and the two toothed belts 551 are rotatably engaged in the adjacent annular grooves. When the secondary gear 421 drives the adjacent toothed belts 551 to move, the toothed belts 551 are always limited by the annular grooves, preventing the toothed belts 551 from skewing.

[0051] Example 3

[0052] The U-shaped frame 450 and the electric hoist facilitate the user's adjustment of the position of the drive mechanism 500 and the adjustment mechanism 400.

[0053] like Figure 4 As shown, in this embodiment, the box body 510 is equipped with a U-shaped frame 450, and each of the two adjacent sides of the U-shaped frame 450 is provided with a moving groove 451. A connecting box 460 is fixedly connected to the top surface of the U-shaped frame 450, and an electric hoist is provided inside the connecting box 460. A lifting rope 461 is fixedly wound on the electric hoist, and a sliding plate 462 is fixedly connected to one end of the lifting rope 461. The two ends of the sliding plate 462 are respectively slidably engaged in the two moving grooves 451, and the bottom surface of the sliding plate 462 is fixedly connected to the top surface of the box body 510.

[0054] In practice, when in use, the center of the box 510 and the center of the ring 100 are always in the same vertical plane by means of the sliding plate 462. When in use, the height of the box 510 and the two washboards 410 can be controlled by starting the electric hoist, which allows the washboards 410 to detach from or contact the casting.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning tool for eccentric ball casting machining, comprising a ring body (100), characterized in that, The ring body (100) is provided with a fixing mechanism (200) on one side, and a connecting mechanism (300) on the other side, the fixing mechanism (200) is provided with an adjusting mechanism (400), and the adjusting mechanism (400) is provided with a driving mechanism (500); The fixing mechanism (200) comprises a fixing ring (210), one side of the fixing ring (210) is fixedly connected with one side of the ring body (100), an annular clamping groove (211) is formed in an inner wall of the fixing ring (210), and a tooth ring (220) is arranged in the fixing ring (210), one side of the tooth ring (220) is rotatably clamped in the annular clamping groove (211), a plurality of sliding holes (101) are formed in the outer wall of the ring body (100), and a plurality of L-shaped sliding rods (230) are arranged at the sliding holes (101), long arms of the plurality of L-shaped sliding rods (230) are slidably sleeved in adjacent sliding holes (101), short arms of the plurality of L-shaped sliding rods (230) are fixedly connected with pull ropes (231), one ends of the plurality of pull ropes (231) penetrate the inner wall of the ring body (100), and the one ends of the plurality of pull ropes (231) are fixedly connected with the outer wall of the tooth ring (220), and one ends of the long arms of the plurality of L-shaped sliding rods (230) are fixedly connected with abutting cylinders (232). The adjusting mechanism (400) comprises two clamping plates (410), and the clamping plates (410) are fixedly connected with guide rods (411) at the top ends, the guide rods (411) are provided with screw rods (420) at the top ends, and the guide rods (411) are provided with screw holes in the inner walls at the top ends, which are screwed with the outer walls of the screw rods (420), the screw rods (420) are movably connected with the driving mechanism (500), the outer walls of the guide rods (411) are slidably sleeved with sleeve frames (440), the sleeve frames (440) are provided with clamping rails (430) on the adjacent sides, the sleeve frames (440) are slidably clamped in the clamping rails (430), two connecting rods (432) are arranged between the clamping rails (430), the connecting rods (432) are provided with insertion holes in the top surfaces, the driving mechanism (500) is fixedly connected with a fixed rod (433) at the bottom end, the fixed rod (433) is rotatably sleeved with the insertion holes, the connecting rods (432) are rotatably connected with clamping blocks (431) at the two ends, the clamping rails (430) are provided with sliding grooves on the adjacent sides, and the clamping blocks (431) at the two ends of the same connecting rod (432) are slidably clamped in the sliding grooves.

2. The positioning tool for eccentric ball casting machining according to claim 1, characterized in that, The outer wall of the fixing ring (210) is fixedly connected with a motor box (240) through a mounting frame, the motor box (240) is provided with a driving motor, a main gear (241) is fixedly connected with a motor shaft of the driving motor, the outer wall of the fixing ring (210) is provided with a notch (212), and the main gear (241) is located in the notch (212) and is engaged with the tooth ring (220).

3. The positioning tool for eccentric ball casting machining according to claim 2, characterized in that, The connecting mechanism (300) comprises a connecting frame (310), the connecting frame (310) is C-shaped, both ends of the connecting frame (310) are fixedly connected with the other side of the ring body (100), and one side of the connecting frame (310) is fixedly connected with a sliding rail (320), and the sliding rail (320) is slidably connected with a clamping block (330) inside.

4. The positioning tool for eccentric ball casting machining according to claim 3, characterized in that, Both ends of one side of the connecting frame (310) are fixedly connected with supporting plates, a screw rod (340) is rotatably connected between the two supporting plates, screw holes (331) are formed in the outer side walls of the clamping block (330), and the inner side walls of the screw holes (331) are screwed with the outer side walls of the screw rod (340).

5. The positioning tool for eccentric ball casting machining according to claim 1, characterized in that, The driving mechanism (500) comprises a box body (510), circular holes are formed in opposite sides of the box body (510), an annular shell (520) is rotatably sleeved between the two circular holes, guide grooves (522) are formed in opposite sides of the annular shell (520), and the two guide grooves (522) are diagonally arranged with the center of the annular shell (520) as the center, sliding blocks (530) are rotatably sleeved at one end of the outer side walls of the two screw rods (420), and the two sliding blocks (530) are slidably connected in the two guide grooves (522) respectively, two driving rods (540) are arranged in the annular shell (520), and both ends of the two driving rods (540) are rotatably connected with the inner side walls of the annular shell (520), a fixing box (523) is fixedly connected with the outer side wall of the annular shell (520), and a stepping motor is arranged in the fixing box (523), the motor shaft of the stepping motor is fixedly connected with one end of one of the driving rods (540), a transmission ring belt (541) is rotatably sleeved between the outer side walls of the two driving rods (540), connecting blocks (542) are rotatably connected with opposite sides of the transmission ring belt (541), and one end of each of the two connecting blocks (542) is rotatably connected with one end of one of the two screw rods (420), and the top end of the fixing rod (433) is fixedly connected with the bottom surface of the box body (510).

6. The positioning tool for eccentric ball casting machining according to claim 5, characterized in that, Two driving rollers (550) are rotatably connected between opposite sides of the annular shell (520), two toothed belts (551) are rotatably sleeved between the outer side walls of the two driving rollers (550), a pinion (421) is fixedly sleeved with the outer side wall of each of the two screw rods (420), and the two toothed belts (551) are engaged with the two pinions (421) respectively, a protection box (552) is fixedly connected with one side of the annular shell (520), a servo motor is arranged in the protection box (552), the motor shaft of the servo motor is fixedly connected with one end of one of the driving rollers (550), and two limiting rods (501) are fixedly connected with the opposite inner side walls of the annular shell (520), and the two sliding blocks (530) are slidably connected between adjacent two limiting rods (501).

7. The positioning tool for eccentric ball casting machining according to claim 6, characterized in that, The box body (510) is rotatably connected with a rotating rod (560) on one inner side wall, and the outer side wall of the rotating rod (560) is fixedly sleeved with a driving gear (561), one side of the box body (510) is fixedly connected with a driving box (562), and the inside of the driving box (562) is provided with a power motor, the motor shaft of the power motor is fixedly connected with one end of the rotating rod (560), and the outer side wall of the annular shell (520) is fixedly connected with a plurality of tooth blocks (521), and the driving gear (561) is engaged with the adjacent tooth blocks (521).

8. The positioning tool for eccentric ball casting machining according to claim 7, characterized in that, The annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is fixedly connected between two opposite inner side walls, and the annular shell (520) is 9. The positioning tool for eccentric ball casting machining according to claim 8, characterized in that, ​

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