Steel ball filling and automatic assembling equipment and operation method

Abstract

The application relates to a steel ball automatic filling and assembling equipment, and belongs to the technical field of ball screw production, which comprises a workbench, a conveyor arranged on the workbench, a placing rack arranged on one side of the workbench, an adjusting sleeve arranged on the workbench, the adjusting sleeve being the same in outer diameter as a screw rod and being provided with the same outer spiral groove as the screw rod, and a first driving assembly arranged on the workbench; a second driving assembly is installed on the workbench and connected with a first lifting plate, a locking assembly is arranged on the first lifting plate and connected with a first finger air cylinder; a third driving assembly is installed on the workbench and connected with a ball filling assembly, the ball filling assembly is connected with a ball storage box, the ball storage box is connected with a ball distributing pipe, and an air pump is arranged on the ball distributing pipe; a fourth driving assembly is installed on the workbench and connected with a butt joint assembly, and the butt joint assembly is connected with a second finger air cylinder. The application has the effects of realizing automatic ball filling of steel balls and improving ball filling efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of ball screw production, and in particular to an automatic assembly device for steel ball filling and an operating method. Background Art

[0002] Typically, assembling balls in a ball screw pair requires manual steps: First, prepare an auxiliary screw and a connecting sleeve. Insert the auxiliary screw into the nut housing, ensuring the spiral grooves of the auxiliary screw and nut housing are precisely aligned. Create a gap at the entrance of the nut housing for installing the first ball. Manually insert the first steel ball into the entrance of the spiral groove of the nut housing. Ensure the steel ball is accurately seated in the spiral groove. Rotate the auxiliary screw to move the nut housing on the auxiliary screw, gradually inserting more steel balls as it moves. Once the steel balls are loaded, connect the connecting sleeve to the auxiliary screw, and rotate the nut housing to transfer the nut housing and balls to the connecting sleeve. Insert the main screw into the sleeve and connect it to the connecting sleeve. Finally, slowly move the nut housing from the sleeve to the main screw to complete the ball installation. However, this manual method of ball filling is inefficient and prone to missing balls. Summary of the Invention

[0003] In order to realize automatic filling of steel balls, improve filling efficiency and reduce the occurrence of missing balls, the present application provides an automatic assembly device for filling steel balls and an operating method.

[0004] The present application provides an automatic steel ball filling and assembly equipment that adopts the following technical solutions:

[0005] An automatic assembly device for steel ball filling, comprising a workbench, a conveyor for conveying nut seats, a plurality of racks for placing lead screws disposed on one side of the workbench, an adjustment sleeve disposed on the workbench, the adjustment sleeve having the same outer diameter as the lead screw and having an outer spiral groove identical to that of the lead screw, and a first drive assembly for controlling the rotation and simultaneous lifting of the adjustment sleeve disposed on the workbench;

[0006] A second drive assembly is mounted on the workbench, the second drive assembly is connected to a first lifting plate, a locking assembly is provided on the first lifting plate, the locking assembly is connected to a first finger cylinder for grabbing a nut seat, the second drive assembly is used to control the first lifting plate to move along the X-axis and the Z-axis, and when the locking assembly is unlocked, the first finger cylinder can move along the height direction of the lifting plate;

[0007] A third drive assembly is installed on the workbench, the third drive assembly is connected to a bead filling assembly, the bead filling assembly is connected to a bead storage box, the bead storage box is connected to a bead separation tube, the bead separation tube is equipped with an air pump for ejecting steel balls, the bead filling assembly is used to drive the bead storage box to rotate and move along the Z axis at the same time, and the third drive assembly is used to drive the bead filling assembly to move along the X axis and the Z axis;

[0008] A fourth drive assembly is installed on the workbench, and the fourth drive assembly is connected to a docking assembly, and the docking assembly is connected to a second finger cylinder for grabbing the lead screw. The docking assembly is used to control the connection between the outer spiral groove of the adjusting sleeve and the spiral groove of the lead screw and can control the rotation of the second finger cylinder. The fourth drive assembly is used to control the rotation of the docking assembly and can move along the X-axis and Z-axis.

[0009] By adopting the above technical solution, the second drive component drives the first finger cylinder to move to the conveyor, and the first finger cylinder grabs the nut seat; the second drive component drives the first finger cylinder to move to the nut seat and inserts it into the adjusting sleeve and is coaxial with the adjusting sleeve; the first drive component is controlled to drive the adjusting sleeve to rotate, and cooperates with manual observation until the outer spiral groove of the adjusting sleeve is aligned with the spiral groove of the nut seat, and the third drive component is controlled to drive the bead filling component and the bead storage box to move, so that the bead distribution tube is located in the nut seat and aligned with the spiral groove of the nut seat; the bead storage box is controlled to transport steel balls to the bead distribution tube, and the air pump drives the steel balls into the spiral channel between the nut seat and the adjusting sleeve. During this process, manual observation is cooperated. If the air pump cannot successfully drive the steel balls out, the adjusting sleeve is controlled to rotate 1-5° to avoid bead jamming. After each designed number of steel balls has been filled, the bead filling assembly rotates the bead storage box and bead dispensing tube by a specified angle. Simultaneously, the first drive assembly rotates the adjustment sleeve by the same angle, raising the adjustment sleeve and the bead dispensing tube by the same distance. After the specified number of steel balls has been assembled, the third drive assembly separates the bead filling assembly from the bead storage box, while the first drive assembly continuously rotates the adjustment sleeve until it passes through the nut holder. The fourth drive assembly drives the second finger cylinder to grasp the lead screw and engage it with the adjustment sleeve. The docking assembly connects the outer spiral groove of the adjustment sleeve with the spiral groove of the lead screw. The locking assembly is released, and the adjustment sleeve and lead screw rotate synchronously to assemble the nut holder onto the lead screw. The first finger cylinder then separates from the nut holder, and the adjustment sleeve separates from the lead screw, completing the installation of the lead screw and nut holder. This system enables automated loading and unloading of beads and automated assembly of the lead screw and nut holder, requiring only manual supervision to ensure any stuck beads. This automated filling process improves efficiency. Furthermore, the air pump pushes the steel balls into the spiral groove, minimizing missed balls.

[0010] Optionally, the first driving assembly includes a first motor, the first motor is installed in the workbench, the first motor is connected to a rotating disk, the rotating disk is connected to a first telescopic sleeve, and the adjusting sleeve is slidably connected in the first telescopic sleeve.

[0011] By adopting the above technical solution, when the nut seat is inserted into the adjusting sleeve and an appropriate amount of steel balls are loaded, the first motor drives the rotating disk to rotate, so that the first telescopic sleeve drives the adjusting sleeve to rotate, and the adjusting sleeve can also extend out of the first telescopic sleeve.

[0012] Optionally, the locking assembly includes a first slide, the first finger cylinder is installed on the first slide, the first slide is slidably connected to the first lifting plate, the first lifting plate is provided with a snap-in groove, the first slide is provided with an inflation chamber, the inflation chamber is connected to a reset spring, a snap-in block is slidably connected in the inflation chamber, the snap-in block is connected to the reset spring, and a buffer pad is installed at the bottom of the first lifting plate.

[0013] By adopting the above technical solution, when grabbing the nut seat, the inflation chamber is inflated, so that the clamping block is inserted into the lower clamping groove, the lifting plate and the first slide seat are fixed, and the movement of the lifting plate is controlled to drive the first finger cylinder to move and grab the nut seat;

[0014] During the assembly of the steel ball, keep the clamping block inserted into the lower clamping groove. At this time, the first finger cylinder and the nut seat cannot be raised or lowered, ensuring that the adjusting sleeve can be rotated and raised stably.

[0015] After the beads are loaded, the inflation chamber is exhausted, and the reset spring drives the clamping block to separate from the lower clamping groove. At this time, when the adjusting sleeve and the lead screw rotate synchronously, the first slide, the first finger cylinder and the nut seat can rise synchronously until the nut seat moves onto the lead screw. The first finger cylinder is released, and the first slide automatically falls onto the buffer pad, and the clamping block is realigned with the clamping groove, ready to grab the next nut seat.

[0016] Optionally, the second drive assembly includes a first servo drive unit, the first servo drive unit is connected to a first lifting frame, the first servo drive unit drives the first lifting frame to move along the X-axis direction, the first lifting frame is slidably connected to the first lifting plate, and the first lifting frame is provided with a second servo drive unit for controlling the first lifting plate to move along the Z-axis.

[0017] Optionally, the third drive assembly includes a third servo drive unit, the third servo drive unit is connected to a second lifting frame, the second lifting frame is slidably connected to a mounting plate, the mounting plate is connected to the bead filling assembly, and the second lifting frame is provided with a fourth servo drive unit for controlling the movement of the mounting plate along the Z-axis direction.

[0018] Optionally, a bead separating plate is rotatably connected to the bead storage box, and a second motor for driving the bead separating plate to rotate is provided on the bead storage box. The bead separating plate has a plurality of bead separating grooves along its circumference, and each of the bead separating grooves can only accommodate one steel ball. The inner diameter of the bead separating groove is the same as the inner diameter of the bead separating tube.

[0019] By adopting the above technical solution, the second motor drives the bead separating plate to rotate. After the steel balls fall into the bead separating groove, the bead separating plate can take the steel balls to the bead separating tube for discharge, and only one steel ball is discharged into the bead separating tube at a time to avoid bead jamming.

[0020] Optionally, the bead filling assembly includes a third motor, the third motor is fixed on the mounting plate, a synchronous sleeve is fixed on the casing of the third motor, the synchronous sleeve is provided with an inner spiral groove identical to the spiral groove of the nut seat, the third motor is connected to a telescopic rod, the telescopic rod is connected to the bead storage box, and the bead storage box is connected to the synchronous sleeve by assembling a ball screw.

[0021] By adopting the above technical solution, when the first motor drives the adjusting sleeve to rotate, the third motor rotates synchronously, and the third motor drives the telescopic rod and the bead storage box to rotate. Since the inner spiral groove of the synchronous sleeve is the same as the spiral groove of the nut seat, when the adjusting sleeve and the bead storage box rotate at the same time, it can ensure that the bead separating tube is always aligned with the spiral groove of the adjusting sleeve. At the same time, the adjusting sleeve and the bead separating tube can also rise synchronously to realize the normal operation of the assembly work and avoid the collision between the bead separating tube and the adjusting sleeve.

[0022] Optionally, the fourth drive assembly includes a fifth servo drive unit, the fifth servo drive unit is connected to a movable disk, the fifth servo drive unit drives the movable disk to move along the X-axis direction, the movable disk is equipped with a fourth motor, the fourth motor is connected to a rotating disk, a third lifting frame is installed on the rotating disk, the third lifting frame is slidably connected to a cantilever arm, the third lifting frame is provided with a sixth servo drive unit for controlling the lifting of the cantilever arm, and the cantilever arm is connected to the docking assembly.

[0023] By adopting the above technical solution, the fifth servo drive unit drives the movable plate to move, so that the cantilever arm drives the second finger cylinder to move to the placement rack, and then the sixth servo drive unit drives the cantilever arm and the second finger cylinder to descend to grab the lead screw and then lift the lead screw. Then the fifth servo drive unit, the sixth servo drive unit and the fourth motor cooperate to grab the lead screw for moving, rotating and lifting, so that the lead screw is inserted into the adjusting sleeve.

[0024] Optionally, the docking assembly includes a fifth motor, which is connected to the second finger cylinder. A patch is provided at the bottom of the screw, and a photoelectric sensor is embedded in the top of the adjusting sleeve. When the photoelectric sensor is aligned with the patch, the spiral groove of the screw is connected with the outer spiral groove of the adjusting sleeve.

[0025] By adopting the above technical solution, the second finger cylinder descends to grab the lead screw. When the lead screw is transferred to the top of the adjusting sleeve, the fifth motor drives the lead screw to rotate. After the patch is aligned with the photoelectric sensor, the second finger cylinder descends to insert the lead screw into the adjusting sleeve. At this time, the spiral groove of the lead screw and the outer spiral groove of the adjusting sleeve are connected to ensure that the nut seat can be smoothly transferred to the lead screw.

[0026] A steel ball filling operation method, using the above-mentioned steel ball filling automatic assembly equipment, includes the following steps:

[0027] S1, control the second drive assembly to drive the first finger cylinder to move to the conveyor, and the first finger cylinder grabs the nut seat;

[0028] S2, control the second driving assembly to drive the first finger cylinder to move to the nut seat to insert into the adjusting sleeve and be coaxial with the adjusting sleeve;

[0029] S3, controlling the first drive assembly to drive the adjusting sleeve to rotate so that the outer spiral groove of the adjusting sleeve is aligned with the spiral groove of the nut seat;

[0030] S4, controlling the third driving assembly to drive the bead filling assembly and the bead storage box to move so that the bead dispensing tube is located in the nut seat and aligned with the spiral groove of the nut seat;

[0031] S5, controlling the bead storage box to transport steel balls to the bead distribution tube. Whenever a steel ball enters the spiral groove of the nut seat, the bead filling assembly drives the bead storage box and the bead distribution tube to rotate a specified angle. At the same time, the first driving assembly drives the adjusting sleeve to rotate the same angle. At this time, the adjusting sleeve will rise one end distance during rotation because the first steel ball is assembled. At this time, the bead filling assembly drives the bead storage box and the bead distribution tube to rise the same distance.

[0032] S6. Repeat step S5 until a specified number of steel balls are assembled, control the third drive assembly to separate the bead filling assembly from the bead storage box, and control the first drive assembly to drive the adjusting sleeve to continuously rotate until the adjusting sleeve passes through the nut seat;

[0033] S7, controlling the fourth driving assembly to drive the second finger cylinder to grab the lead screw and connect it to the adjusting sleeve, and the docking assembly controls the outer spiral groove of the adjusting sleeve to connect with the spiral groove of the lead screw;

[0034] S8. Loosen the locking assembly, rotate the adjusting sleeve and the lead screw synchronously, assemble the nut seat onto the lead screw, then separate the first finger cylinder from the nut seat, separate the adjusting sleeve from the lead screw, and complete the installation of the lead screw and nut seat.

[0035] In summary, this application includes at least one of the following beneficial technical effects:

[0036] 1. Automatic loading and unloading of steel balls is realized, and the screw and nut seat are automatically assembled. Only manual supervision is required to see if there are any stuck balls. Automatic steel ball filling is achieved, which improves filling efficiency. In addition, the air pump pushes the steel balls into the spiral groove to reduce the risk of missing steel balls.

[0037] 2. When the first motor drives the adjusting sleeve to rotate, the third motor rotates synchronously, and the third motor drives the telescopic rod and the bead storage box to rotate. Since the inner spiral groove of the synchronous sleeve is the same as the spiral groove of the nut seat, when the adjusting sleeve and the bead storage box rotate at the same time, it can ensure that the bead distribution tube is always aligned with the spiral groove of the adjusting sleeve. At the same time, the adjusting sleeve and the bead distribution tube can also rise synchronously, realizing the normal operation of the assembly work and avoiding the collision of the bead distribution tube and the adjusting sleeve.

[0038] 3. The fifth motor drives the second finger cylinder to rotate, so that the first photoelectric sensor is aligned with the first patch, and then the second finger cylinder descends to grab the lead screw. When the lead screw is transferred to the top of the adjusting sleeve, the fifth motor drives the lead screw to rotate, so that the second patch is aligned with the second photoelectric sensor. The second finger cylinder descends to insert the lead screw into the adjusting sleeve. At this time, the spiral groove of the lead screw and the outer spiral groove of the adjusting sleeve are connected to ensure that the nut seat can be smoothly transferred to the lead screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0040] Figure 2 It is a structural diagram of the second drive assembly and the fourth drive assembly according to an embodiment of the present application.

[0041] Figure 3 It is a structural diagram of an embodiment of the present application used to reflect the adjustment sleeve and the first drive assembly.

[0042] Figure 4 yes Figure 3 Enlarged schematic diagram of part A.

[0043] Figure 5 yes Figure 3 Schematic diagram of the enlarged portion B.

[0044] Figure 6 It is a structural diagram of the third drive component used in an embodiment of the present application.

[0045] Figure 7 It is a structural diagram of the embodiment of the present application used to reflect the bead filling component.

[0046] Figure 8 yes Figure 4 Enlarged schematic diagram of part C.

[0047] Explanation of the accompanying drawings: 1. workbench; 11. conveyor; 12. placement rack; 2. adjusting sleeve; 21. outer spiral groove; 3. first drive assembly; 31. first motor; 32. rotating disk; 33. first telescopic sleeve; 4. second drive assembly; 41. first lifting plate; 411. clamping groove; 42. first servo drive unit; 43. first lifting rack; 44. second servo drive unit; 5. locking assembly; 51. first finger cylinder; 52. first slide; 521. inflation chamber; 53. return spring; 54. clamping block; 55. buffer pad; 6. third drive assembly; 61. third servo drive unit; 62. second Lifting frame; 63. Mounting plate; 64. Fourth servo drive unit; 7. Bead filling assembly; 71. Bead storage box; 72. Second motor; 73. Bead separation plate; 731. Bead separation groove; 74. Bead separation tube; 75. Air pump; 76. Third motor; 77. Synchronous sleeve; 771. Inner spiral groove; 78. Telescopic rod; 8. Fourth drive assembly; 81. Fifth servo drive unit; 82. Moving plate; 83. Fourth motor; 84. Rotating plate; 85. Third lifting frame; 86. Cantilever arm; 87. Sixth servo drive unit; 9. Docking assembly; 91. Second finger cylinder; 92. Fifth motor; 93. Patch; 94. Photoelectric sensor. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-8 This application is described in further detail.

[0049] The embodiment of the present application discloses an automatic assembly device for steel ball filling.

[0050] like Figure 1 、 Figure 2 and Figure 3 The automatic assembly equipment for steel ball filling includes a workbench 1. A conveyor 11 for conveying nut seats is installed on the top surface of the workbench 1. The conveyor 11 is arranged along the X-axis direction. A plurality of placement racks 12 for placing screws are fixed at one end of the front side of the workbench 1. The placement racks 12 are arranged equidistantly along the length direction of the workbench 1. An adjusting sleeve 2 is provided at the center of the workbench 1. The adjusting sleeve 2 has the same outer diameter as the screw and is provided with the same outer spiral groove 21 as the screw. A first driving component 3 for controlling the rotation and lifting of the adjusting sleeve 2 is provided inside the workbench 1.

[0051] A second drive assembly 4 is installed on the rear side of the workbench 1. The second drive assembly 4 is connected to a first lifting plate 41. A locking assembly 5 is provided on the first lifting plate 41. The locking assembly 5 is connected to a first finger cylinder 51 for grabbing the nut seat. The second drive assembly 4 is used to control the movement of the first lifting plate 41 along the X-axis and the Z-axis. When the locking assembly 5 is unlocked, the first finger cylinder 51 can move along the height direction of the lifting plate.

[0052] like Figure 1 、 Figure 6 and Figure 7 The top surface of the workbench 1 is mounted with a third drive assembly 6, which is arranged opposite to the conveyor 11. The third drive assembly 6 is connected to a bead filling assembly 7, which is connected to a bead storage box 71. A second motor 72 is mounted on the bead storage box 71. A bead separation plate 73 is rotatably connected to the bead storage box 71. The second motor 72 is connected to the bead separation plate 73. The bead separation plate 73 has a plurality of bead separation grooves 731 along its circumference, each of which can accommodate only one steel ball. A bead separation tube 74 is connected to the bottom of the bead storage box 71. The inner diameter of the bead separation grooves 731 is the same as that of the bead separation tube 74. An air pump 75 for ejecting the steel balls is mounted on the bead separation tube 74. The air nozzle of the air pump 75 is aligned between the first and second steel balls at the mouth of the bead separation tube 74, ensuring that only one steel ball is ejected at a time. The bead filling assembly 7 is used to drive the bead storage box 71 to rotate and move along the Z axis. The third driving assembly 6 is used to drive the bead filling assembly 7 to move along the X axis and the Z axis.

[0053] like Figure 1 and Figure 2 A fourth drive assembly 8 is installed on the front side of the workbench 1, and the fourth drive assembly 8 is arranged toward the placement rack 12. The fourth drive assembly 8 is connected to the docking assembly 9, and the docking assembly 9 is connected to the second finger cylinder 91 for grabbing the screw. The docking assembly 9 is used to control the connection between the outer spiral groove 21 of the adjusting sleeve 2 and the spiral groove of the screw and can control the rotation of the second finger cylinder 91. The fourth drive assembly 8 is used to control the rotation of the docking assembly 9 and can move along the X-axis and Z-axis.

[0054] When filling the steel balls, the second drive assembly 4 drives the first finger cylinder 51 to move to the conveyor 11, and the first finger cylinder 51 grabs the nut seat; the second drive assembly 4 drives the first finger cylinder 51 to move to the nut seat and insert it into the adjusting sleeve 2 and become coaxial with the adjusting sleeve 2. At this time, a gap is left between the nut seat and the adjusting sleeve 2, and the gap is adapted to the ball bearing.

[0055] Control the first drive assembly 3 to drive the adjusting sleeve 2 to rotate, and manually observe until the outer spiral groove 21 of the adjusting sleeve 2 is aligned with the spiral groove of the nut seat, and at this time, the end of the outer spiral track of the adjusting sleeve 2 (that is, the opening at the top of the adjusting sleeve 2 where the outer spiral track passes through) is facing the first spiral groove of the adjusting sleeve 2 where beads need to be filled;

[0056] The third driving assembly 6 is controlled to drive the bead filling assembly 7 and the bead storage box 71 to move, so that the bead distribution tube 74 is located in the nut seat and aligned with the spiral notch of the adjusting sleeve 2; the second motor 72 is started, so that the bead distribution plate 73 drives the steel balls to be delivered to the bead distribution tube 74. After the first steel ball enters the channel surrounded by the outer spiral track and the nut seat, the air pump 75 pumps air at intervals to push another steel ball into the channel. The previous steel ball will be squeezed by the next steel ball and continue to be pushed into the channel (or directly slide into the channel). During this process, manual cooperation and observation are performed. If the air pump 75 cannot smoothly eject the steel ball, the adjusting sleeve 2 is controlled to rotate 1-5 degrees to avoid bead jamming.

[0057] After each designed number of steel balls are filled, the bead filling assembly 7 drives the bead storage box 71 and the bead distribution tube 74 to rotate a specified angle. At the same time, the first drive assembly 3 drives the adjustment sleeve 2 to rotate the same angle, and the adjustment sleeve 2 and the bead distribution tube 74 rise the same distance. After the specified number of steel balls are assembled, the third drive assembly 6 is controlled to drive the bead filling assembly 7 to separate from the bead storage box 71.

[0058] Control the first drive assembly 3 to drive the adjusting sleeve 2 to rotate continuously until the adjusting sleeve 2 passes through the nut seat; control the fourth drive assembly 8 to drive the second finger cylinder 91 to grab the lead screw and plug it into the adjusting sleeve 2, and the docking assembly 9 controls the outer spiral groove 21 of the adjusting sleeve 2 to connect with the spiral groove of the lead screw;

[0059] Loosen the locking assembly 5, rotate the adjusting sleeve 2 and the lead screw synchronously, and raise the nut seat until it fits onto the lead screw. Then, separate the first finger cylinder 51 from the nut seat, and the adjusting sleeve 2 from the lead screw, completing the installation of the lead screw and nut seat. This enables automatic loading and unloading of steel balls and automatic assembly of the lead screw and nut seat. Only manual supervision is required to ensure that no balls are stuck, allowing for automatic filling of steel balls and improving filling efficiency. Furthermore, the air pump 75 pushes the steel balls into the spiral groove, reducing the risk of missing steel balls.

[0060] like Figure 2 、 Figure 3 and Figure 4 The first driving assembly 3 includes a first motor 31, which is installed in the workbench 1. The first motor 31 is connected to a rotating disk 32, and the rotating disk 32 is connected to a first telescopic sleeve 33. The adjusting sleeve 2 is slidably connected in the first telescopic sleeve 33;

[0061] When the nut seat is inserted into the adjusting sleeve 2 and an appropriate amount of steel balls are loaded, the first motor 31 drives the rotating disk 32 to rotate, so that the first telescopic sleeve 33 drives the adjusting sleeve 2 to rotate, and the adjusting sleeve 2 can also extend out of the first telescopic sleeve 33.

[0062] like Figure 2 、 Figure 3 and Figure 5The second drive assembly 4 includes a first servo drive unit 42, which is installed on the rear side of the workbench 1. The first servo drive unit 42 is connected to a first lifting frame 43. The first servo drive unit 42 drives the first lifting frame 43 to move along the X-axis direction. The first lifting frame 43 is slidably connected to the first lifting plate 41. The first lifting frame 43 is provided with a second servo drive unit 44 for controlling the first lifting plate 41 to move along the Z-axis.

[0063] The locking assembly 5 includes a first slide 52, which is slidably connected to the first lifting plate 41. A snap-fit ​​groove 411 is provided on the first lifting plate 41. The first slide 52 provides an inflation chamber 521, and the inflation chamber 521 is connected to a return spring 53. A snap-fit ​​block 54 is slidably connected in the inflation chamber 521, and the snap-fit ​​block 54 is connected to the return spring 53. A buffer pad 55 is installed at the bottom of the first lifting plate 41. When the snap-fit ​​block 54 is located in the snap-fit ​​groove 411, the first slide 52 is supported on the buffer pad 55. When the inflation chamber 521 is exhausted, the return spring 53 drives the snap-fit ​​block 54 to separate from the snap-fit ​​groove 411.

[0064] When grabbing the nut seat, the inflation chamber 521 is inflated, so that the clamping block 54 is inserted into the clamping groove 411, the first lifting plate 41 and the first slide 52 are fixed, and the first servo drive unit 42 and the second servo drive unit 44 cooperate to control the movement of the first lifting plate 41 to drive the first finger cylinder 51 to move and grab the nut seat;

[0065] During the assembly of the steel ball, the clamping block 54 is kept inserted into the clamping groove 411. At this time, the first finger cylinder 51 and the nut seat cannot be raised or lowered, ensuring that the adjusting sleeve 2 can be rotated and raised stably.

[0066] After the beads are loaded, the inflation chamber 521 is exhausted, and the return spring 53 drives the clamping block 54 to separate from the clamping groove 411. At this time, when the adjusting sleeve 2 and the screw rotate synchronously, the first slide 52, the first finger cylinder 51 and the nut seat can rise synchronously until the nut seat moves onto the screw. The first finger cylinder 51 is released, and the first slide 52 automatically falls on the buffer pad 55, and the clamping block 54 is realigned with the clamping groove 411, ready to grab the next nut seat.

[0067] like Figure 6 and Figure 7 The third drive assembly 6 includes a third servo drive unit 61, which is connected to a second lifting frame 62. The third servo drive unit 61 drives the second lifting frame 62 to move along the X-axis direction. The second lifting frame 62 is slidably connected to a mounting plate 63, which is connected to the bead filling assembly 7. The second lifting frame 62 is provided with a fourth servo drive unit 64 for controlling the movement of the mounting plate 63 along the Z-axis direction.

[0068] The bead filling assembly 7 includes a third motor 76, which is fixed to the bottom of the mounting plate 63. A synchronous sleeve 77 is fixed to the casing of the third motor 76. The synchronous sleeve 77 is provided with an inner spiral groove 771 which is the same as the spiral groove of the nut seat. The third motor 76 is connected to a telescopic rod 78, which is connected to the bead storage box 71. The bead storage box 71 is connected to the synchronous sleeve 77 by assembling a ball screw.

[0069] When the first motor 31 drives the adjusting sleeve 2 to rotate, the third motor 76 rotates synchronously, and the third motor 76 drives the telescopic rod 78 and the bead storage box 71 to rotate. Since the inner spiral groove 771 of the synchronous sleeve 77 is the same as the spiral groove of the nut seat, when the adjusting sleeve 2 and the bead storage box 71 rotate at the same time, it can ensure that the bead separating tube 74 is always aligned with the spiral groove of the adjusting sleeve 2. At the same time, the adjusting sleeve 2 and the bead separating tube 74 can also rise synchronously to achieve normal operation of the assembly work and avoid the collision between the bead separating tube 74 and the adjusting sleeve 2.

[0070] like Figure 2 and Figure 3 The fourth drive assembly 8 includes a fifth servo drive unit 81, which is installed on the front side of the workbench 1. The fifth servo drive unit 81 is connected to a movable disk 82. The fifth servo drive unit 81 drives the movable disk 82 to move along the X-axis direction. A fourth motor 83 is installed on the movable disk 82. The fourth motor 83 is connected to a rotating disk 84. A third lifting frame 85 is installed on the rotating disk 84. The third lifting frame 85 is slidably connected to a cantilever arm 86. The third lifting frame 85 is provided with a sixth servo drive unit 87 for controlling the lifting of the cantilever arm 86. The cantilever arm 86 is connected to the docking assembly 9.

[0071] like Figure 2 and Figure 8 The docking assembly 9 includes a fifth motor 92, which is installed at the bottom of the cantilever arm 86. The fifth motor 92 is connected to the second finger cylinder 91. A patch 93 is provided at the bottom of the screw, and a photoelectric sensor 94 is embedded in the top of the adjusting sleeve 2. When the photoelectric sensor 94 is aligned with the patch 93, the spiral groove of the screw is connected with the outer spiral groove 21 of the adjusting sleeve 2.

[0072] The fifth servo drive unit 81 drives the movable plate 82 to move, so that the cantilever arm 86 approaches the placement rack 12. Then the fourth motor 83 drives the rotating plate 84 to rotate, so that the second finger cylinder 91 rotates to just above the lead screw. Then the sixth servo drive unit 87 drives the third lifting frame 85 to descend, so that the second finger cylinder 91 descends to grab the lead screw.

[0073] The lead screw is then transferred to the position directly above the adjustment sleeve 2. The fifth motor 92 drives the lead screw, aligning the patch 93 with the photoelectric sensor 94. The second finger cylinder 91 descends, inserting the lead screw into the adjustment sleeve 2. The spiral groove of the lead screw now aligns with the outer spiral groove 21 of the adjustment sleeve 2, ensuring smooth transfer of the nut seat to the lead screw. The fifth motor 92 and the first motor 31 are then synchronously activated, causing the adjustment sleeve 2 and the lead screw to rotate synchronously, thus transferring the nut seat to the lead screw.

[0074] The first servo drive unit 42 , the second servo drive unit 44 , the third servo drive unit 61 , the fourth servo drive unit 64 , the fifth servo drive unit 81 and the sixth servo drive unit 87 are all motor and lead screw structures.

[0075] The present application also provides a method for operating a steel ball filling machine, which is applied to the steel ball filling automatic assembly equipment of the present application, and includes the following steps:

[0076] S1. Control the second driving assembly 4 to drive the first finger cylinder 51 to move to the conveyor 11, and the first finger cylinder 51 grabs the nut seat;

[0077] S2, control the second driving assembly 4 to drive the first finger cylinder 51 to move to the nut seat to insert into the adjusting sleeve 2 and be coaxial with the adjusting sleeve 2;

[0078] S3, controlling the first driving assembly 3 to drive the adjusting sleeve 2 to rotate, so that the outer spiral groove 21 of the adjusting sleeve 2 is aligned with the first bead-loading spiral groove of the nut seat;

[0079] S4, controlling the third driving assembly 6 to drive the bead filling assembly 7 and the bead storage box 71 to move so that the bead distributing tube 74 is located in the nut seat and aligned with the spiral notch of the nut seat;

[0080] S5, control the bead storage box 71 to transport steel balls to the bead distribution tube 74, and the air pump 75 drives the steel balls into the spiral channel between the nut seat and the adjusting sleeve 2. During this process, manual observation is performed. If the air pump 75 cannot smoothly drive the steel balls out, the adjusting sleeve 2 is controlled to rotate 1-5 degrees to avoid beads being stuck. After each designed number of steel balls are filled, the bead filling assembly 7 drives the bead storage box 71 and the bead distribution tube 74 to rotate a specified angle. At the same time, the first driving assembly 3 drives the adjusting sleeve 2 to rotate the same angle, and the adjusting sleeve 2 and the bead distribution tube 74 rise the same distance;

[0081] S6. Repeat step S5 until a specified number of steel balls are assembled, control the third drive assembly 6 to drive the bead filling assembly 7 to separate from the bead storage box 71, and control the first drive assembly 3 to drive the adjusting sleeve 2 to continue rotating until the adjusting sleeve 2 passes through the nut seat;

[0082] S7: Control the fourth driving assembly 8 to drive the second finger cylinder 91 to grab the lead screw and connect it to the adjusting sleeve 2. The docking assembly 9 controls the outer spiral groove 21 of the adjusting sleeve 2 to connect with the spiral groove of the lead screw.

[0083] S8. Loosen the locking assembly 5, rotate the adjusting sleeve 2 and the lead screw synchronously, assemble the nut seat onto the lead screw, then separate the first finger cylinder 51 from the nut seat, separate the adjusting sleeve 2 from the lead screw, and complete the installation of the lead screw and the nut seat.

[0084] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic steel ball filling and assembly equipment, characterized by: The invention comprises a workbench (1), wherein a conveyor (11) for conveying a nut seat is provided on the workbench (1), a plurality of placement racks (12) for placing a lead screw are provided on one side of the workbench (1), the workbench (1) is provided with an adjustment sleeve (2), the adjustment sleeve (2) has the same outer diameter as the lead screw and is provided with an outer spiral groove (21) identical to the lead screw, and the workbench (1) is provided with a first drive assembly (3) for controlling the rotation of the adjustment sleeve (2) and the lifting and lowering thereof; A second driving assembly (4) is installed on the workbench (1), the second driving assembly (4) is connected to a first lifting plate (41), a locking assembly (5) is provided on the first lifting plate (41), the locking assembly (5) is connected to a first finger cylinder (51) for grabbing a nut seat, the second driving assembly (4) is used to control the first lifting plate (41) to move along the X-axis and the Z-axis, and when the locking assembly (5) is unlocked, the first finger cylinder (51) can move along the height direction of the first lifting plate (41); A third driving assembly (6) is installed on the workbench (1), the third driving assembly (6) is connected to a bead filling assembly (7), the bead filling assembly (7) is connected to a bead storage box (71), the bead storage box (71) is connected to a bead distribution tube (74), the bead distribution tube (74) is equipped with an air pump (75) for ejecting steel balls, the bead filling assembly (7) is used to drive the bead storage box (71) to rotate and move along the Z axis at the same time, and the third driving assembly (6) is used to drive the bead filling assembly (7) to move along the X axis and the Z axis; A fourth drive assembly (8) is installed on the workbench (1), the fourth drive assembly (8) is connected to a docking assembly (9), the docking assembly (9) is connected to a second finger cylinder (91) for grabbing the lead screw, the docking assembly (9) is used to control the outer spiral groove (21) of the adjusting sleeve (2) to connect with the spiral groove of the lead screw and can control the rotation of the second finger cylinder (91), the fourth drive assembly (8) is used to control the rotation of the docking assembly (9) and can move along the X-axis and the Z-axis.

2. The automatic steel ball filling and assembling equipment according to claim 1, characterized in that: The first driving assembly (3) comprises a first motor (31), the first motor (31) is installed in the workbench (1), the first motor (31) is connected to a rotating disk (32), the rotating disk (32) is connected to a first telescopic sleeve (33), and the adjusting sleeve (2) is slidably connected in the first telescopic sleeve (33).

3. The automatic steel ball filling and assembling equipment according to claim 1, characterized in that: The locking assembly (5) includes a first slide (52), the first finger cylinder (51) is installed on the first slide (52), the first slide (52) is slidably connected to the first lifting plate (41), the first lifting plate (41) is provided with a clamping groove (411), the first slide (52) is provided with an inflation chamber (521), the inflation chamber (521) is connected to a reset spring (53), a clamping block (54) is slidably connected in the inflation chamber (521), the clamping block (54) is connected to the reset spring (53), and a buffer pad (55) is installed at the bottom of the first lifting plate (41).

4. The automatic steel ball filling and assembling equipment according to claim 1, characterized in that: The second drive assembly (4) includes a first servo drive unit (42), the first servo drive unit (42) is connected to a first lifting frame (43), the first servo drive unit (42) drives the first lifting frame (43) to move along the X-axis direction, the first lifting frame (43) is slidably connected to the first lifting plate (41), and the first lifting frame (43) is provided with a second servo drive unit (44) for controlling the first lifting plate (41) to move along the Z-axis.

5. The automatic steel ball filling and assembling equipment according to claim 1, characterized in that: The third drive assembly (6) includes a third servo drive unit (61), the third servo drive unit (61) is connected to a second lifting frame (62), the second lifting frame (62) is slidably connected to a mounting plate (63), the mounting plate (63) is connected to the bead filling assembly (7), and the second lifting frame (62) is provided with a fourth servo drive unit (64) for controlling the mounting plate (63) to move along the Z-axis direction.

6. The automatic steel ball filling and assembling equipment according to claim 1, characterized in that: A bead separation plate (73) is rotatably connected to the bead storage box (71). A second motor (72) is provided on the bead storage box (71) for driving the bead separation plate (73) to rotate. The bead separation plate (73) is provided with a plurality of bead separation grooves (731) along its circumference. Each of the bead separation grooves (731) can only accommodate one steel ball. The inner diameter of the bead separation groove (731) is the same as the inner diameter of the bead separation tube (74).

7. The automatic steel ball filling and assembling equipment according to claim 5, characterized in that: The bead filling assembly (7) includes a third motor (76), the third motor (76) is fixed on the mounting plate (63), a synchronous sleeve (77) is fixed on the housing of the third motor (76), the synchronous sleeve (77) is provided with an inner spiral groove (771) identical to the spiral groove of the nut seat, the third motor (76) is connected to a telescopic rod (78), the telescopic rod (78) is connected to the bead storage box (71), and the bead storage box (71) is connected to the synchronous sleeve (77) by assembling a ball screw.

8. The automatic steel ball filling and assembling equipment according to claim 1, characterized in that: The fourth drive assembly (8) includes a fifth servo drive unit (81), the fifth servo drive unit (81) is connected to a movable disk (82), the fifth servo drive unit (81) drives the movable disk (82) to move along the X-axis direction, a fourth motor (83) is installed on the movable disk (82), the fourth motor (83) is connected to a rotating disk (84), a third lifting frame (85) is installed on the rotating disk (84), the third lifting frame (85) is slidably connected to a cantilever arm (86), and a sixth servo drive unit (87) for controlling the lifting of the cantilever arm (86) is provided on the third lifting frame (85), and the cantilever arm (86) is connected to the docking assembly (9).

9. The automatic steel ball filling and assembling equipment according to claim 8, characterized in that: The docking assembly (9) includes a fifth motor (92), the fifth motor (92) is connected to the second finger cylinder (91), a patch (93) is provided at the bottom of the lead screw, and a photoelectric sensor (94) is embedded in the top of the adjustment sleeve (2). When the photoelectric sensor (94) is aligned with the patch (93), the spiral groove of the lead screw is connected with the outer spiral groove (21) of the adjustment sleeve (2).

10. A method for operating a steel ball filling machine, characterized in that: The steel ball filling automatic assembly equipment according to any one of claims 1 to 9 comprises the following steps: S1, controlling the second driving assembly (4) to drive the first finger cylinder (51) to move to the conveyor (11), and the first finger cylinder (51) grabs the nut seat; S2, controlling the second driving assembly (4) to drive the first finger cylinder (51) to move to the nut seat so as to be inserted into the adjusting sleeve (2) and to be coaxial with the adjusting sleeve (2); S3, controlling the first driving assembly (3) to drive the adjusting sleeve (2) to rotate, so that the outer spiral groove (21) of the adjusting sleeve (2) is aligned with the first bead-loading spiral groove of the nut seat; S4, controlling the third driving assembly (6) to drive the bead filling assembly (7) and the bead storage box (71) to move so that the bead distribution tube (74) is located in the nut seat and aligned with the spiral notch of the nut seat; S5, control the bead storage box (71) to transport steel balls to the bead distribution tube (74), and the air pump (75) drives the steel balls into the spiral channel between the nut seat and the adjusting sleeve (2). During this process, manual observation is performed. If the air pump (75) cannot smoothly drive the steel balls out, the adjusting sleeve (2) is controlled to rotate 1-5 degrees to avoid beads being stuck. After each designed number of steel balls are poured, the bead filling assembly (7) drives the bead storage box (71) and the bead distribution tube (74) to rotate a specified angle. At the same time, the first driving assembly (3) drives the adjusting sleeve (2) to rotate the same angle, and the adjusting sleeve (2) and the bead distribution tube (74) rise the same distance. S6, repeatedly executing step S5 until a specified number of steel balls are assembled, controlling the third driving assembly (6) to drive the bead filling assembly (7) to separate from the bead storage box (71), and controlling the first driving assembly (3) to drive the adjusting sleeve (2) to continuously rotate until the adjusting sleeve (2) passes through the nut seat; S7, controlling the fourth driving assembly (8) to drive the second finger cylinder (91) to grab the lead screw and connect it to the adjusting sleeve (2), and the docking assembly (9) to control the outer spiral groove (21) of the adjusting sleeve (2) to connect with the spiral groove of the lead screw; S8. Loosen the locking assembly (5), rotate the adjusting sleeve (2) and the lead screw synchronously, and assemble the nut seat onto the lead screw. Then separate the first finger cylinder (51) from the nut seat, separate the adjusting sleeve (2) from the lead screw, and complete the installation of the lead screw and the nut seat.

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