A ball loading machine with lead screw and lead screw

Abstract

This invention discloses a ball loading machine using a lead screw, relating to the field of lead screw ball loading technology. Steel balls are placed in a tiered ball bin, rolling along a groove and accumulating at the bottom. They then enter a feeding pipe through a discharge port and are continuously conveyed through a folded tube. When no further conveying is needed, a lifting cylinder extends, pushing the adhesive plate and mounting plate, causing the feeding pipe to move upwards and stretching the folded tube. When the feeding pipe is higher than the groove and extends beyond the discharge port, its outer wall blocks the steel balls from sliding down the groove, thus achieving conveying obstruction. When a sensor below detects insufficient steel balls in the feeding pipe, the lifting cylinder descends, lowering the feeding pipe below the groove, allowing the steel balls to fall back into the feeding pipe for continued conveying. The sensor detects in real time, and automatic feeding is achieved by repeatedly lifting the lifting cylinder. This allows for precise control of steel ball conveying and stopping, achieving automatic feeding, avoiding frequent manual operation, and improving conveying efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to the field of ball loading technology using lead screws and lead nuts, and more particularly to a ball loading machine using lead screws and lead nuts. Background Technology

[0002] As one of the most widely used transmission components in the fields of machine tools and precision machinery, the lead screw plays an irreplaceable role in many industrial scenarios due to its unique functional characteristics. Its core function lies in its ability to accurately and efficiently convert motion into linear motion. Specifically, on the one hand, it can smoothly and accurately convert rotary motion into linear motion, providing reliable power transmission for the linear movement of equipment; on the other hand, it can also cleverly convert torque into axial reciprocating force, meeting the needs of equipment for the direction and form of force under different working conditions.

[0003] However, despite the numerous advantages of lead screws, existing lead screw technologies suffer from several unresolved issues during assembly, with the difficulty and slowness of ball loading being particularly prominent. In the manufacturing process of lead screws, the ball loading step is crucial for ensuring stable performance and precise transmission. However, due to the small size and large number of steel balls, which need to be accurately inserted into the specific channels between the nut and the screw, traditional manual ball loading methods are not only inefficient and time-consuming, but also struggle to guarantee that each ball is accurately positioned, leading to problems such as missing balls or ball jamming, thus affecting the overall performance and service life of the lead screw. Even with simple mechanical ball loading devices, problems such as low loading accuracy and poor adaptability often exist, failing to meet the assembly requirements of high-precision lead screws. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of traditional manual ball loading methods, which are not only inefficient and require a lot of manpower and time, but also make it difficult to ensure that each steel ball is accurately placed, and are prone to problems such as missing balls and ball jamming, thus affecting the overall performance and service life of the lead screw. Therefore, a lead screw ball loading machine is proposed.

[0005] To achieve the above objectives, the present invention employs the following technology: a ball loading machine with a lead screw: including a frame, the frame including a base plate and a support frame, a support plate fixed on the base plate, and further including: a ball lowering assembly disposed on the support plate, a metering assembly on the support frame, and a ball loading assembly disposed on the base plate;

[0006] The ball loading assembly includes a ball loading chamber mounted on a base plate. The top of the ball loading chamber has a ball filling port, and several detection sensors are installed on both sides of the ball filling port. The inside of the ball loading chamber has a connection port, and a ball blocking rod is slidably connected inside the connection port. A lifting component is connected between one side of the ball loading chamber and the ball blocking rod. A moving unit is mounted on the base plate, and a moving block is connected to the moving unit. A servo motor is mounted on one side of the moving block, and a lead screw mounting shaft is connected to the output end of the servo motor. An adjusting component is provided on the base plate.

[0007] The steel ball enters the ball loading chamber through the ball inlet. The moving unit drives the servo motor to move forward, and the servo motor drives the lead screw to rotate, so that the steel ball enters the lead screw groove.

[0008] As a further description of the aforementioned technology, a lead screw ball loading machine:

[0009] The lifting component includes an extension frame fixed to one side of the ball loading chamber. An electric push rod is installed on the top of the extension frame. The extension end of the electric push rod is connected to a horizontal plate. The horizontal plate and the ball blocking rod are connected by a clamping groove.

[0010] As a further description of the aforementioned technology, a lead screw ball loading machine:

[0011] The adjusting component includes a welding block fixed to the base plate, a sliding plate slidably connected to the welding block, two positioning blocks fixed to the base plate, a drive motor installed on one side of the positioning block, the output end of the drive motor passing through the positioning block and connected to the threaded rod, a pusher ball stop rod and a nut placement bracket respectively installed on the sliding plate, and a positioning button installed on one side of the nut placement bracket.

[0012] As a further description of the aforementioned technology, a lead screw ball loading machine:

[0013] The quantitative component includes a transverse lead screw unit mounted on a support frame and a sliding frame fixed on the support frame. The sliding frame is slidably connected to a sliding block that contacts the transverse lead screw unit. A placement plate is fixed on the sliding block. A displacement cylinder is mounted on one side of the placement plate. A fixing plate is fixed on the top of the placement plate. The fixing plate and the displacement cylinder are connected by a top sliding frame.

[0014] As a further description of the aforementioned technology, a lead screw ball loading machine:

[0015] One side of the movable frame is connected to a fixed ball block, and the fixed ball block has a ball storage groove inside.

[0016] As a further description of the aforementioned technology, a lead screw ball loading machine:

[0017] Several welding rods are fixed on the support frame. A connecting plate is fixed on the outer periphery of the welding rod. A slot is opened inside the connecting plate. A stop block is slidably connected to the inner wall of the slot. A telescopic spring is connected between the stop block and the slot. A ball positioning port that contacts the stop block is opened inside the connecting plate. A ball dropping port is opened on the connecting plate. The bottom of the ball dropping port is connected to the ball adding port through a ball dropping tube.

[0018] As a further description of the aforementioned technology, a lead screw ball loading machine:

[0019] The lower ball assembly includes a connecting frame mounted on a support plate. A segmented steel ball chamber is connected to the top of the connecting frame, and a switch cover is hinged to the segmented steel ball chamber. A connecting plate is fixed to one side of the switch cover, and an extension plate is fixed to one side of the connecting frame. A switch cylinder is mounted on the extension plate, and the switch cylinder is hinged to the connecting plate.

[0020] As a further description of the aforementioned technology, a lead screw ball loading machine:

[0021] The internal structure of the tiered steel ball compartment has a groove and a discharge port. The groove and the discharge port are connected. A fixing column is fixed at the bottom of the connecting frame. A lifting cylinder is connected to the fixing column through a sticky plate on one side. The extension end of the lifting cylinder passes through the sticky plate and is connected to the mounting plate. A discharge pipe that is slidably connected to the discharge port is fixed inside the mounting plate. A sensor is installed at the bottom of the sticky plate. A folded tube is connected between the discharge pipe and the sensor. A discharge pipe is connected between the bottom of the sensor and the ball positioning port.

[0022] In summary, due to the adoption of the above-mentioned technology in the lead screw ball loading machine, the beneficial effects of this invention are:

[0023] The steel balls are placed in the graded steel ball bins by the ball-feeding assembly, metering assembly, and ball-loading assembly. The steel balls roll along the groove and accumulate at the bottom before entering the feeding pipe through the feeding port. They are then continuously conveyed through the folding pipe. When no further conveying is needed, the lifting cylinder extends, pushing the sticking plate and mounting plate, causing the feeding pipe to move upward and the folding pipe to stretch. When the feeding pipe is higher than the groove and extends out of the feeding port, its outer wall blocks the steel balls in the groove from sliding down, thus achieving conveying obstruction. When the sensor below detects that there are not enough steel balls in the feeding pipe, the lifting cylinder descends, causing the feeding pipe to drop below the groove. The steel balls fall into the feeding pipe and continue to be conveyed. The sensor detects in real time, and automatic feeding is completed by repeating the lifting and lowering action of the lifting cylinder. The conveying and stopping of steel balls can be precisely controlled, achieving automatic feeding, avoiding frequent manual operation, and improving conveying efficiency and accuracy.

[0024] Steel balls enter the lower ball positioning port along the lower ball tube and accumulate vertically inside. The transverse lead screw unit is activated, causing the sliding block to slide around the outer circumference of the sliding frame. The placement plate moves synchronously, which in turn moves the fixed ball block until it aligns with the corresponding stop. Once aligned, the displacement cylinder is activated, pushing the moving frame to slide on the fixed plate. The fixed ball block pushes the stop within the slot and compresses the telescopic spring. When the ball storage groove of the fixed ball block aligns with the lower ball positioning port, steel balls fall along the storage groove. Once the set number is reached, the cylinder retracts, pulling the moving frame. The frame and the fixed ball block move, the fixed ball block disengages from the stop block, the telescopic spring rebounds and pushes the stop block to reset, closing the lower ball positioning port. The transverse screw unit moves again, driving the sliding block to slide on the sliding frame until the ball storage tank of the fixed ball block is in the same straight line as the ball dropping port. The displacement cylinder extends again, pushing the fixed ball block closer to the ball dropping port. When the ball storage tank coincides with the ball dropping port, a fixed number of steel balls fall down through the ball dropping port and enter the ball filling port through the ball dropping pipe. This allows for precise control of the number of steel balls fed each time, ensuring accurate steel ball quantity during loading and improving product quality stability.

[0025] Connect the lead screw to the lead screw mounting shaft, place the lead nut on the lead nut placement rack, press the positioning button to securely position the lead nut on its outer circumference, start the drive motor to rotate the threaded rod, the sliding plate slides on the outer circumference of the welding block, moving the pusher ball blocking rod closer to the ball loading chamber to prevent the steel ball from leaking out of the ball loading chamber. Start the moving unit to move the lead screw mounting shaft on one side of the moving block, so that the lead screw enters the ball lowering position in the ball loading chamber. Start the servo motor to rotate the lead screw, accurately positioning the lead screw and lead nut, and preparing for ball blocking to prevent the steel ball from leaking out, creating favorable conditions for subsequent ball loading and improving the success rate of ball loading.

[0026] The electric push rod retracts, pulling the crossbar to raise the ball-stopping rod, no longer obstructing the steel ball in the ball-filling port. The steel ball falls down along the connection port and enters the rotating lead screw groove. After the steel ball has fallen, the electric push rod extends, pushing the ball-stopping rod down to re-enter the connection port to verify whether the ball filling is complete. After confirming that the ball filling is complete, the drive motor is restarted to move the pusher ball-stopping rod away from the ball-filling chamber and the lead screw nut placement frame close to the ball-filling chamber. The moving unit pushes the moving block, moving the lead screw closer to the lead screw nut. The servo motor is restarted again, driving the lead screw to rotate into the lead screw nut, completing the connection between the lead screw and the lead screw nut. The raising and lowering operation of the ball-stopping rod can effectively verify the ball filling situation, ensuring accurate ball filling and ultimately completing the high-quality connection between the lead screw and the lead screw nut. Attached Figure Description

[0027] Figure 1 A schematic diagram of the overall structure according to the present invention is shown;

[0028] Figure 2 A schematic diagram of the overall structure from another perspective according to the present invention is shown;

[0029] Figure 3A schematic diagram of the lower ball assembly structure according to the present invention is shown;

[0030] Figure 4 A cross-sectional schematic diagram of the lower ball assembly according to the present invention is shown;

[0031] Figure 5 A schematic diagram of the quantitative component structure according to the present invention is shown;

[0032] Figure 6 A cross-sectional schematic diagram of the quantitative component according to the present invention is shown;

[0033] Figure 7 The present invention is shown Figure 6 Enlarged view of a portion of point A in the middle;

[0034] Figure 8 A schematic diagram of the ball loading assembly structure according to the present invention is shown;

[0035] Figure 9 A schematic diagram of the welding block structure according to the present invention is shown;

[0036] Figure 10 The present invention is shown Figure 9 A magnified view of a portion of point B in the middle.

[0037] Legend:

[0038] 10. Frame; 11. Base plate; 12. Support frame; 13. Support plate;

[0039] 20. Ball lowering assembly; 21. Connecting frame; 22. Dividing steel ball compartment; 23. Switch cover; 231. Connecting plate; 232. Extension plate; 233. Switch cylinder; 24. Groove; 241. Discharge port; 25. Discharge pipe; 26. Fixing column; 261. Lifting cylinder; 262. Mounting plate; 263. Sensor; 27. Ball lowering pipe;

[0040] 30. Quantitative component; 31. Transverse lead screw unit; 32. Sliding frame; 321. Sliding block; 322. Placement plate; 33. Displacement cylinder; 34. Moving frame; 341. Fixed plate; 342. Fixed ball block; 343. Ball storage tank; 35. Welding rod; 351. Connecting plate; 352. Slotted; 353. Telescopic spring; 354. Stop block; 355. Ball lowering positioning port; 356. Ball dropping port; 36. Ball dropping tube;

[0041] 40. Ball loading assembly; 41. Ball loading chamber; 411. Ball filling port; 412. Detection sensor; 413. Ball blocking rod; 42. Extension frame; 421. Electric push rod; 422. Horizontal plate; 423. Clamping groove; 43. Moving unit; 431. Moving block; 432. Servo motor; 433. Lead screw mounting shaft; 44. Welding block; 441. Sliding plate; 442. Drive motor; 443. Threaded rod; 444. Positioning block; 445. Push ball blocking rod; 446. Lead screw nut placement rack; 447. Positioning button. Detailed Implementation

[0042] The following will describe in detail, with reference to the accompanying drawings of the embodiments of the present invention, a ball-loading machine with a lead screw in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0043] like Figures 1-10 As shown, the present invention provides a ball loading machine for lead screws: including a frame 10, the frame 10 including a base plate 11 and a support frame 12, a support plate 13 fixed on the base plate 11, and further including: a ball unloading assembly 20 disposed on the support plate 13, a quantitative assembly 30 disposed on the support frame 12, and a ball loading assembly 40 disposed on the base plate 11.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the lower ball assembly 20 includes a connecting frame 21 mounted on a support plate 13. A segmented steel ball chamber 22 is connected to the top of the connecting frame 21. The segmented steel ball chamber 22 contains steel balls of different sizes, and a switch cover 23 is hinged to the segmented steel ball chamber 22. A connecting plate 231 is fixed to one side of the switch cover 23, and an extension plate 232 is fixed to one side of the connecting frame 21. A switch cylinder 233 is mounted on the extension plate 232, and the switch cylinder 233 is hinged to the connecting plate 231. The attached diagram shows the disassembled state, with a groove 24 formed inside the segmented steel ball chamber 22. And a discharge port 241, a groove 24 is connected to the discharge port 241, a fixing column 26 is fixed at the bottom of the connecting frame 21, a lifting cylinder 261 is connected to the fixing column 26 through a sticking plate on one side, the extension end of the lifting cylinder 261 passes through the sticking plate and is connected to the mounting plate 262, a discharge pipe 25 is fixed inside the mounting plate 262 and is slidably connected to the discharge port 241, a sensor 263 is installed at the bottom of the sticking plate, and a folding tube is connected between the discharge pipe 25 and the sensor 263, and a lower ball tube 27 is connected between the bottom of the sensor 263 and the lower ball positioning port 355;

[0045] When loading balls into the lead screw and lead nut, firstly, the steel balls are placed in the dividing steel ball bin 22. The steel balls placed in the dividing steel ball bin 22 will roll along the groove 24 and gradually accumulate at the bottom of the groove 24. Then, the steel balls will enter the feeding pipe 25 through the feeding port 241 and continue to be conveyed through the feeding pipe 25 and the folding pipe.

[0046] When the steel balls no longer need to be fed, the lifting cylinder 261 begins to extend, pushing the sticking plate and the mounting plate 262 on top of it. Under the force, the mounting plate 262 will drive the feeding pipe 25 to move upward, and at the same time stretch the folding tube. When the feeding pipe 25 moves upward to a certain position, it will extend the feeding port 241, which is higher than the groove 24. At this time, the steel balls in the groove 24 cannot continue to slide along the feeding port 241 due to the obstruction of the outer wall of the feeding pipe 25, thereby blocking the feeding of the steel balls.

[0047] When the lower sensor 263 detects that the number of steel balls in the feeding tube 25 is insufficient, the lifting cylinder 261 will descend, causing the feeding tube 25 to descend to a position lower than the groove 24. At this time, the steel balls in the groove 24 will fall into the feeding tube 25, so that the steel balls can continue to be conveyed. The sensor 263 senses the number of steel balls in the feeding tube 25 in real time to determine whether the material needs to be added. Then the lifting action of the lifting cylinder 261 is repeated to complete the material adding process.

[0048] In addition, when it is necessary to add steel balls to the grading steel ball chamber 22, the ball adding start switch cylinder 233 is activated. The switch cylinder 233 extends and pulls the connecting plate 231. The connecting plate 231 drives the switch cover 23 to rotate around the hinge point, thereby opening the switch cover 23 and making it convenient to add steel balls to the grading steel ball chamber 22.

[0049] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7As shown, the quantitative assembly 30 includes a transverse lead screw unit 31 mounted on a support frame 12 and a sliding frame 32 fixed on the support frame 12. The sliding frame 32 is slidably connected to a sliding block 321 that contacts the transverse lead screw unit 31. A placement plate 322 is fixed on the sliding block 321. A displacement cylinder 33 is mounted on one side of the placement plate 322. A fixing plate 341 is fixed to the top of the placement plate 322. The fixing plate 341 and the displacement cylinder 33 are connected via a top-sliding movable frame 34. A fixed ball block 342 is connected to one side of the movable frame 34. The inside of 42 is provided with a ball storage tank 343. Several welding rods 35 are fixed on the support frame 12. A connecting plate 351 is fixed on the outer periphery of the welding rods 35. A slot 352 is provided inside the connecting plate 351. A stop block 354 is slidably connected to the inner wall of the slot 352. A telescopic spring 353 is connected between the stop block 354 and the slot 352. A ball positioning port 355 that contacts the stop block 354 is provided inside the connecting plate 351. A ball dropping port 356 is provided on the connecting plate 351. The bottom of the ball dropping port 356 is connected to the ball filling port 411 through a ball dropping tube 36.

[0050] During the steel ball feeding operation, firstly, the steel balls enter the lower ball positioning port 355 along the lower ball tube 27 and are stacked vertically in the lower ball positioning port 355.

[0051] Next, the transverse lead screw unit 31 is activated. The transverse lead screw unit 31 drives the sliding block 321 to slide on the outer periphery of the sliding frame 32. Since the placement plate 322 is connected to the sliding block 321, the placement plate 322 will move synchronously with the movement of the sliding block 321, thereby driving the fixed ball block 342 to move until the fixed ball block 342 is aligned with the corresponding stop block 354.

[0052] When the fixed ball block 342 is aligned with the stop block 354, the displacement cylinder 33 is activated. The displacement cylinder 33 extends and pushes the moving frame 34 to slide on the fixed plate 341. The fixed ball block 342 moves together with the moving frame 34, thereby pushing the stop block 354 to move in the slot 352 and squeezing the telescopic spring 353. As the fixed ball block 342 continues to push, when the ball storage groove 343 of the fixed ball block 342 is aligned with the lower ball positioning port 355, the steel ball in the lower ball positioning port 355 will fall along the ball storage groove 343. When the number of steel balls falling into the ball storage groove 343 reaches the set value, the steel balls can no longer fall.

[0053] At this time, the displacement cylinder 33 retracts, pulling the moving frame 34 to move on the fixed plate 341, and at the same time driving the fixed ball block 342 to move. The fixed ball block 342 gradually disengages from the contact with the stop block 354, and the compression spring 353 begins to rebound, pushing the stop block 354 to reset, thereby closing the lower ball positioning port 355.

[0054] Subsequently, the transverse lead screw unit 31 moves again, driving the sliding block 321 to slide on the sliding frame 32 until the ball storage groove 343 of the fixed ball block 342 and the ball drop port 356 are in the same straight line.

[0055] Next, the displacement cylinder 33 extends again, pushing the moving frame 34 to move on the fixed plate 341, and at the same time pushing the fixed ball block 342 to approach the ball drop port 356. When the ball storage tank 343 coincides with the ball drop port 356, a fixed number of steel balls in the ball storage tank 343 fall down along the ball drop port 356 and enter the ball filling port 411 along the ball drop pipe 36, thus completing the feeding operation of a fixed number of steel balls.

[0056] like Figure 1 , Figure 2 , Figure 8 , Figure 9 , Figure 10 As shown, the ball loading assembly 40 includes a ball loading chamber 41 mounted on a base plate 11. The top of the ball loading chamber 41 has a ball filling port 411, and several detection sensors 412 are installed on both sides of the ball filling port 411. A connection port is provided inside the ball loading chamber 41, and a ball-blocking rod 413 is slidably connected inside the connection port. The connection port communicates with the ball filling port 411. A lifting component is connected between one side of the ball loading chamber 41 and the ball-blocking rod 413. The lifting component includes an extension frame 42 fixed to one side of the ball loading chamber 41. An electric push rod 421 is mounted on the top of the extension frame 42. A horizontal plate 422 is connected to the extended end of the electric push rod 421. The horizontal plate 422 and the ball-blocking rod 413 are connected via a clamping groove 423. A moving unit 43 is mounted on the base plate 11, and a series of sensors are connected to the moving unit 43. A movable block 431 is provided. A servo motor 432 is installed on one side of the movable block 431. The output end of the servo motor 432 is connected to a lead screw mounting shaft 433. An adjusting component is provided on the base plate 11. The adjusting component includes a welding block 44 fixed on the base plate 11. A sliding plate 441 is slidably connected to the welding block 44. Two positioning blocks 444 are fixed on the base plate 11. A drive motor 442 is installed on one side of the positioning block 444. The output end of the drive motor 442 passes through the positioning block 444 and is connected to the threaded rod 443. A pusher ball stop rod 445 and a lead screw placement frame 446 are respectively installed on the sliding plate 441. An electric push rod is connected to one side of both the pusher ball stop rod 445 and the lead screw placement frame 446. A positioning button 447 is installed on one side of the lead screw placement frame 446.

[0057] When the steel ball enters the ball filling port 411, the system is in the initial state. At this time, the ball blocking rod 413 is embedded in the connection port, effectively preventing the steel ball entering the ball filling port 411 from falling. The number of steel balls falling into the ball filling port 411 will be accurately detected by the detection sensor 412.

[0058] After the steel ball quantity is checked, the ball loading preparation work of the lead screw and lead nut begins. First, connect the lead screw to the lead screw mounting shaft 433, place the lead nut on the lead nut placement bracket 446, and then press the positioning button 447 to securely position the outer periphery of the lead nut.

[0059] Then the drive motor 442 is started, and the drive motor 442 drives the threaded rod 443 to rotate. Since the sliding plate 441 is connected to the threaded rod 443, as the threaded rod 443 rotates, the sliding plate 441 will slide on the outer periphery of the welding block 44. When the sliding plate 441 slides, it will drive the pusher ball blocking rod 445 to move closer to the ball loading chamber 41. Its function is to prevent the steel balls from leaking out of the ball loading chamber 41 and ensure the smooth progress of the ball loading process.

[0060] Then, the moving unit 43 is started, which drives the lead screw mounting shaft 433 on one side of the moving block 431 to move. The lead screw mounting shaft 433 then drives the lead screw to enter the ball loading chamber 41 and the ball unloading position. When the lead screw enters the ball loading chamber 41, the servo motor 432 is started, which drives the lead screw connected to the lead screw mounting shaft 433 to rotate.

[0061] At this time, the electric push rod 421 begins to retract, pulling the horizontal plate 422. The horizontal plate 422 then pulls the ball-stopping rod 413 embedded in the clamping groove 423 to rise. After the ball-stopping rod 413 rises, it no longer blocks the steel ball in the ball-adding port 411. The steel ball then falls down along the connection port and enters the groove of the rotating lead screw.

[0062] After the steel ball has fallen, the electric push rod 421 is extended, causing the horizontal plate 422 to push the ball-stopping rod 413 down and re-enter the connection port, thus verifying whether the ball addition is complete.

[0063] After confirming that the ball addition is complete, start the drive motor 442 again. The drive motor 442 drives the threaded rod 443 to rotate, causing the pusher ball blocking rod 445 to move away from the ball loading chamber 41. As the pusher ball blocking rod 445 continues to move, the nut placement rack 446 will come close to the ball loading chamber 41.

[0064] Next, the moving unit 43 pushes the moving block 431, which in turn drives the lead screw connected to the lead screw mounting shaft 433 to approach the lead screw nut. Then, the servo motor 432 starts again, driving the lead screw connected to the lead screw mounting shaft 433 to rotate into the lead screw nut, thus completing the connection between the lead screw and the lead screw nut, and the entire ball loading process ends.

[0065] Working principle: The steel balls are placed in the tiered steel ball bin 22. The steel balls roll along the groove 24 and gradually accumulate at the bottom. Then they enter the feed pipe 25 through the feed port 241 and continue to be conveyed through the folding pipe. When it is not necessary to convey steel balls, the lifting cylinder 261 extends, pushes the sticking plate and the mounting plate 262, and drives the feed pipe 25 to move upward, so that the folding pipe is stretched. When the feed pipe 25 is higher than the groove 24, its outer wall blocks the steel balls in the groove 24 and prevents them from sliding down.

[0066] When the sensor 263 below detects that there are not enough steel balls in the feeding pipe 25, the lifting cylinder 261 descends, driving the feeding pipe 25 to a position below the groove 24. The steel balls fall into the feeding pipe 25 and continue to be conveyed. The sensor 263 senses in real time and repeats the lifting action of the lifting cylinder 261 to complete the feeding.

[0067] Steel balls enter the lower ball positioning port 355 along the lower ball tube 27 and stack vertically. The transverse screw unit 31 is activated, which drives the sliding block 321 to slide around the outer periphery of the sliding frame 32. The placement plate 322 moves synchronously, which in turn drives the fixed ball block 342 to move until it is aligned with the corresponding stop block 354. After the fixed ball block 342 is aligned with the stop block 354, the displacement cylinder 33 is activated, which pushes the moving frame 34 to slide on the fixed plate 341. The fixed ball block 342 pushes the stop block 354 to move in the slot 352 and squeezes the telescopic spring 353. When the ball storage groove 343 of the fixed ball block 342 is aligned with the lower ball positioning port 355, the steel balls fall along the ball storage groove 343 and stop after reaching the set number. At this time, the displacement cylinder 33 retracts, pulling the moving frame 34 and the fixed ball block 342 to move. The fixed ball block 342 disengages from the stop block 354, and the telescopic spring 353 rebounds to push the stop block 354 to reset, closing the lower ball positioning port 355.

[0068] The transverse lead screw unit 31 moves again, so that the ball storage tank 343 of the fixed ball block 342 is aligned with the ball drop port 356. The displacement cylinder 33 extends again, pushing the fixed ball block 342 closer to the ball drop port 356. When the two overlap, a fixed number of steel balls in the ball storage tank 343 fall down through the ball drop port 356 and enter the ball feeding port 411 through the ball drop pipe 36, thus completing the quantitative steel ball feeding.

[0069] After the steel ball enters the ball filling port 411, in the initial state, the ball blocking rod 413 is embedded in the connection port to prevent the steel ball from falling. The detection sensor 412 accurately detects the number of steel balls in the ball filling port 411. After the detection is completed, the lead screw is connected to the lead screw mounting shaft 433, the lead nut is placed on the lead nut placement bracket 446, and the positioning button 447 is pressed to securely position the outer periphery of the lead nut.

[0070] Start the drive motor 442, which drives the threaded rod 443 to rotate. The sliding plate 441 slides on the outer periphery of the welding block 44, which drives the pusher ball blocking rod 445 to move closer to the ball loading chamber 41 to prevent the steel ball from leaking out. Start the moving unit 43, which drives the lead screw mounting shaft 433 on one side of the moving block 431 to move, so that the lead screw enters the ball loading position in the ball loading chamber 41. After the lead screw is in place, the servo motor 432 starts, driving the lead screw to rotate. The electric push rod 421 retracts, pulling the horizontal plate 422, causing the ball-stopping rod 413 embedded in the clamping groove 423 to rise. The steel ball falls down along the connection port and enters the rotating lead screw groove. After the steel ball has fallen, the electric push rod 421 extends, pushing the ball-stopping rod 413 down to re-enter the connection port to verify whether the ball loading is complete. After confirming that the ball loading is complete, the drive motor 442 is started again, moving the pusher ball-stopping rod 445 away from the ball loading chamber 41 and the lead screw nut placement rack 446 close to the ball loading chamber 41. The moving unit 43 pushes the moving block 431 to bring the lead screw closer to the lead screw nut. The servo motor 432 starts again, driving the lead screw to rotate and enter the lead screw nut, completing the connection between the lead screw and the lead screw nut. The entire ball loading process is completed.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technology and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. A lead screw ball loading machine, comprising a frame (10), the frame (10) including a base plate (11) and a support frame (12), wherein a support plate (13) is fixed on the base plate (11), characterized in that, Also includes: The ball lowering assembly (20) is set on the support plate (13), the metering assembly (30) is set on the support frame (12), and the ball loading assembly (40) is set on the bottom plate (11). The ball loading assembly (40) includes a ball loading chamber (41) mounted on a base plate (11). The top of the ball loading chamber (41) is provided with a ball filling port (411), and several detection sensors (412) are installed on both sides of the ball filling port (411). A connection port is provided inside the ball loading chamber (41), and a ball blocking rod (413) is slidably connected inside the connection port. A lifting component is connected between one side of the ball loading chamber (41) and the ball blocking rod (413). A moving unit (43) is mounted on the base plate (11), and a moving block (431) is connected to the moving unit (43). A servo motor (432) is mounted on one side of the moving block (431), and a lead screw mounting shaft (433) is connected to the output end of the servo motor (432). An adjusting component is provided on the base plate (11). The steel ball enters the ball loading chamber (41) through the ball loading port (411). The moving unit (43) drives the servo motor (432) to move forward. The servo motor (432) drives the lead screw to rotate, and the steel ball enters the lead screw groove. The quantitative component (30) includes a transverse lead screw unit (31) mounted on a support frame (12) and a sliding frame (32) fixed on the support frame (12). The sliding frame (32) is slidably connected to a sliding block (321) that contacts the transverse lead screw unit (31). A placement plate (322) is fixed on the sliding block (321). A displacement cylinder (33) is mounted on one side of the placement plate (322). A fixing plate (341) is fixed on the top of the placement plate (322). The fixing plate (341) and the displacement cylinder (33) are connected by a top sliding frame (34). One side of the movable frame (34) is connected to a fixed ball block (342), and a ball storage groove (343) is provided inside the fixed ball block (342). A number of welding rods (35) are fixed on the support frame (12). A connecting plate (351) is fixed on the outer periphery of the welding rods (35). A slot (352) is opened inside the connecting plate (351). A stop block (354) is slidably connected to the inner wall of the slot (352). A telescopic spring (353) is connected between the stop block (354) and the slot (352). A ball positioning port (355) that contacts the stop block (354) is opened inside the connecting plate (351). A ball dropping port (356) is opened on the connecting plate (351). The bottom of the ball dropping port (356) is connected to the ball adding port (411) through a ball dropping tube (36).

2. The lead screw ball loading machine according to claim 1, characterized in that, The lifting component includes an extension frame (42) fixed to one side of the ball loading chamber (41). An electric push rod (421) is installed on the top of the extension frame (42). The extension end of the electric push rod (421) is connected to a horizontal plate (422). The horizontal plate (422) is connected to the ball blocking rod (413) through a clamping groove (423).

3. The ball loading machine with lead screw and lead screw according to claim 2, characterized in that, The adjusting component includes a welding block (44) fixed on the base plate (11), a sliding plate (441) slidably connected to the welding block (44), two positioning blocks (444) fixed on the base plate (11), a drive motor (442) installed on one side of the positioning block (444), the output end of the drive motor (442) passing through the positioning block (444) and connected to the threaded rod (443), a pusher ball stop rod (445) and a nut placement rack (446) respectively installed on the sliding plate (441), and a positioning button (447) installed on one side of the nut placement rack (446).

4. The lead screw ball loading machine according to claim 3, characterized in that, The lower ball assembly (20) includes a connecting frame (21) mounted on a support plate (13). A segmented steel ball chamber (22) is connected to the top of the connecting frame (21), and a switch cover (23) is hinged on the segmented steel ball chamber (22). A connecting plate (231) is fixed to one side of the switch cover (23), and an extension plate (232) is fixed to one side of the connecting frame (21). A switch cylinder (233) is mounted on the extension plate (232), and the switch cylinder (233) is hinged to the connecting plate (231).

5. A lead screw ball loading machine according to claim 4, characterized in that, The internal cavity of the tiered steel ball hopper (22) is provided with a groove (24) and a discharge port (241). The groove (24) is connected to the discharge port (241). A fixing column (26) is fixed at the bottom of the connecting frame (21). The fixing column (26) is connected to a lifting cylinder (261) through a sticking plate on one side. The extension end of the lifting cylinder (261) passes through the sticking plate and is connected to the mounting plate (262). A discharge pipe (25) is fixed inside the mounting plate (262) and is slidably connected to the discharge port (241). A sensor (263) is installed at the bottom of the sticking plate. A folding tube is connected between the discharge pipe (25) and the sensor (263). A discharge pipe (27) is connected between the bottom of the sensor (263) and the ball positioning port (355).

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