Automatic spring direction selecting assembly and spring assembling machine

Abstract

The invention discloses an automatic spring direction selecting assembly and a spring assembling machine, and relates to the technical field of spring assembling equipment, the automatic spring direction selecting assembly comprises a seat body, a conveying assembly, a steering assembly and an orienting assembly, the conveying assembly is used for conveying a spring, and the steering assembly applies pressure to the spring through a pressure head and rotates to adjust the direction of the spring; the orienting assembly is matched with the positioning rod through an orienting wall, so that the ending point of the spring abuts against and is positioned, and automatic orienting is achieved; a spring assembling machine comprises a machine table, a feeding disc, a spring feeding assembly, a contact piece feeding assembly, a mechanical clamping arm spring fastening assembly and the automatic spring direction selecting assembly, and the automatic feeding, direction selecting, assembling and discharging processes of springs and contact pieces are achieved. The spring assembling device has the effect of improving the automatic efficiency and precision of spring assembling.

Description

Technical Field

[0001] This application relates to the technical field of spring assembly equipment, and in particular to an automatic spring orientation component and a spring assembly machine. Background Technology

[0002] A wall switch is a commonly used low-voltage electrical switch, and its switching function relies on the reliable swinging of the moving contact.

[0003] The outermost and innermost turns of the spring are called the end coils. To ensure good feel and stable contact performance of the moving contact during operation, a protrusion is usually provided on the moving contact, and a spring is fitted onto the protrusion. The end of this spring (i.e., the termination point of the end coil) must be precisely positioned at a specific location (usually the middle) on the protrusion of the moving contact to ensure optimal spring arm, thereby efficiently and smoothly driving the moving contact to swing and return (e.g., ...). Figure 1 (As shown). If the orientation of the spring's ending point is random, it will cause the contact point with the protrusion to shift, leading to a series of quality problems such as inconsistent switch feel, fluctuating operating force, stuck action, or even premature failure.

[0004] Currently, due to the small size of the springs in wall switches, they are usually installed manually. However, this installation method has extremely low production efficiency, heavily relies on the worker's skill and concentration, and cannot meet the needs of large-scale production. Some production lines use visual recognition for automated production, which is technically feasible, but it significantly increases equipment costs, complexity, and debugging and maintenance difficulties. Furthermore, the recognition speed is limited by image processing time, making it difficult to match the pace of high-speed production. Summary of the Invention

[0005] In order to reduce production costs and improve production efficiency, this application provides an automatic spring orientation component and a spring assembly machine.

[0006] Firstly, the automatic orientation selection component with a spring provided in this application adopts the following technical solution: A spring-loaded automatic orientation component includes: The base body, one end of the top wall of the base body is fixedly connected to a support platform; The conveying assembly includes a sliding seat slidably connected to the top wall of the base, a first cylinder fixedly connected to the side wall of the base for driving the sliding seat, and a conveying seat fixedly connected to the side wall of the sliding seat. The conveying seat slides on the top wall of the support platform, and the conveying seat has a fixing hole for placing a spring. The steering assembly includes a mounting bracket disposed on one side of the seat, a lifting cylinder fixedly connected to the top wall of the mounting bracket, a rotating component fixedly connected to the output shaft of the lifting cylinder, a spinning rod rotatably connected to the rotating component, a rotating mechanism for driving the spinning rod to rotate, and a pressure head fixedly connected to the end of the spinning rod. The support platform has a through hole for the spring to fall down, and the pressure head is directly opposite the through hole. The directional assembly includes a directional seat slidably connected to the side wall of the base, a directional plate fixedly connected to the top wall of the directional seat, a positioning rod passing through the directional seat and abutting against the side wall of the directional plate, a pressure cap fixedly connected to the top wall of the directional seat, and a second cylinder for driving the directional seat to slide. The bottom of the pressure cap abuts against the top wall of the directional plate. The pressure cap has a clearance hole for the pressure head to press down. The positioning rod is disposed in the clearance hole. The directional seat is disposed below the support platform. The directional plate has a directional wall at one end near the positioning rod. The directional wall is used for the end point of the spring to abut against.

[0007] By adopting the above technical solution, the conveying component can convey the spring to the bottom of the steering component and let it fall into the orientation component through the through hole. The spinning rod of the steering component presses down and rotates, so that the spring can rotate and perform circumferential search until the end of the spring abuts against the orientation wall, thereby achieving accurate positioning of the end of the spring and facilitating subsequent spring installation.

[0008] Optionally, the directional plate has an extension near the positioning rod, the extension has a clearance groove, the side wall of the positioning rod abuts against the inner wall of the clearance groove, and the directional wall is connected to the inner wall of the clearance groove.

[0009] By adopting the above technical solution, the inner wall of the positioning groove abuts against the side wall of the positioning rod, thereby ensuring that there is no gap between the directional plate and the positioning rod that would cause the spring to get stuck, thus ensuring the smooth rotation of the spring.

[0010] Optionally, the pressure head has a positioning hole along the axial direction for the positioning rod to be inserted, the end of the spinning rod is a first abutment part, the first abutment part is disposed inside the positioning hole, the end of the positioning rod is a second abutment part, and the diameters of the first abutment part and the second abutment part gradually decrease towards the opposite side.

[0011] By adopting the above technical solution, when the spinning rod is pressed down, the positioning rod can be inserted into the positioning hole of the pressure head. As the pressure head is pressed down, the first abutting part of the positioning rod abuts against the second abutting part of the spinning rod. At this time, the pressing position of the pressure head is restricted and cannot continue to press down, preventing the spring from being over-compressed and causing the spinning rod to be unable to drive the spring to rotate, thus ensuring the reliability of the system operation.

[0012] Optionally, a fixing block is provided on the top of the directional seat, the side wall of the pressure cap is fitted with the side wall of the fixing block, a first clamping member is provided through the fixing block, a second clamping member is provided through the pressure cap, the first clamping member and the second clamping member are arranged opposite to each other, and a guide surface is provided on the top of both the first clamping member and the second clamping member. A receiving platform is fixedly connected to both ends of the directional seat, and a receiving groove is opened on the opposite side of the receiving platform at both ends. A compression spring is provided inside the receiving groove, and a slot is opened on both the first clamping member and the second clamping member. One end of the compression spring abuts against the inner wall of the receiving groove, and the other end abuts against the inner wall of the slot.

[0013] By adopting the above technical solution, after the pressure head is inserted into the clearance hole, it can abut against the guide surface, thereby pushing the first clamping member and the second clamping member to move to opposite sides, ensuring that the spring in the clearance hole can rotate normally to achieve orientation. After the pressure head has pressed down and rotated, the first clamping member and the second clamping member, under the influence of the compressed spring, can fix the spring, thereby facilitating the subsequent positioning and removal of the spring.

[0014] Optionally, the rotating mechanism includes a gear box fixedly connected to the side of the mounting frame near the support platform, a mounting plate fixedly connected to the side of the mounting frame away from the gear box, a first gear rotatably connected inside the gear box, a second gear rotatably connected to the top wall of the mounting plate, a timing belt sleeved around the outer periphery of the first and second gears, and a drive motor fixedly connected to the bottom wall of the mounting plate for driving the second gear to rotate. A plug-in plate is fixedly connected to the side wall of the spinning rod. The shaft of the first gear has a plug-in hole for inserting the spinning rod, and the inner wall of the plug-in hole has an abutment hole for inserting the plug-in plate.

[0015] By adopting the above technical solution, a stable and controllable rotational torque can be provided, ensuring that the spring is subjected to uniform force during the turning process, avoiding the spring from being accidentally dislodged or deformed, and ensuring the reliability of the orientation process and the consistency of the spring.

[0016] Optionally, the side wall of the conveyor seat is provided with a mounting hole communicating with the fixing hole, and a first proximity switch is provided in the mounting hole.

[0017] By adopting the above technical solution, the first proximity switch can identify whether a spring has entered the fixing hole, thereby sending a signal to enable the first cylinder to push the fixing seat to move, so that the spring can fall into the positioning seat, thus realizing automatic control.

[0018] Secondly, the spring assembly machine provided in this application adopts the following technical solution: A spring assembly machine includes a machine base, a feeding tray rotatably connected to the top wall of the machine base, a fixture seat fixedly connected to the top wall of the feeding tray, a spring feeding assembly disposed on the top wall of the machine base, a contact piece feeding assembly disposed on the top wall of the machine base, mechanical clamping arms for clamping springs and contacts, a spring fastening assembly, the aforementioned automatic spring orientation assembly, and a discharge track fixedly connected to the top wall of the machine base. The spring feeding assembly includes a spring vibratory feeder fixedly connected to the top wall of the machine base and a feeder for placing springs into fixed holes. The contact piece feeding assembly includes a contact piece vibratory feeder, a linear feeding guide rail connected to the contact piece vibratory feeder, and a loading platform fixedly connected to the end of the linear feeding guide rail. The loading platform has a positioning groove communicating with the linear feeding guide rail. At least three mechanical clamping arms are provided, each disposed on one side of the automatic spring orientation assembly, the contact piece feeding assembly, and the discharge track.

[0019] By adopting the above technical solution, the vibratory feeder transports the moving contact piece to the loading platform. The mechanical clamping arm clamps the moving contact piece in the loading platform and places it into the fixture seat. The feeding plate rotates to make it enter the area of ​​the automatic spring orientation component. The mechanical clamping arm on one side of the automatic spring orientation component loads the spring, which has been positioned and oriented, into the moving contact piece. The feeding plate continues to rotate so that the moving contact piece enters the area below the spring fastening component. The spring fastening component presses down and fixes the spring to ensure stable installation, thereby completing the automatic spring assembly operation.

[0020] Optionally, the mechanical gripper arm includes a support frame fixedly connected to the top wall of the machine tool, a slide fixedly connected to the side wall of the support frame, a horizontal slide slidably connected to the slide, a lifting slide slidably connected to the side wall of the horizontal slide, a finger cylinder slidably connected to the side wall of the lifting slide, and a gripper detachably connected to the output shaft of the finger cylinder.

[0021] By adopting the above technical solution, the mechanical gripper can move flexibly, thereby accurately grasping the spring and moving contact piece that has been aligned, and translating the spring and moving contact piece at the correct angle and placing them in the required position, ensuring accuracy and reliability.

[0022] Optionally, the spring fastening assembly includes a fixed frame fixedly connected to the top wall of the machine base, a clamping cylinder fixedly connected to the top wall of the fixed frame, a lifting seat fixedly connected to the output shaft of the clamping cylinder, and a clamping rod passing through and slidably connected to the lifting seat. A limit block is fixedly connected to the side wall of the clamping rod. The lifting seat includes a top platform and a bottom platform, and a limit groove is formed between the top platform and the bottom platform for the limit block to move.

[0023] By adopting the above technical solution, the clamping cylinder can drive the lifting seat to press down, so that the clamping rod can press the spring down, ensuring that the spring is inserted into the protrusion of the moving contact piece.

[0024] Optionally, a trigger rod is fixedly connected to the top wall of the clamping rod and passes through the top platform, and a fixed bracket is fixedly connected to the side wall of the top platform. A second proximity switch is passed through the fixed bracket and is directly opposite the trigger rod.

[0025] By adopting the above technical solution, the second proximity switch and the trigger rod work together to identify whether the spring in the moving contact is properly installed and send a signal to enable the feeding tray to continue rotating, thereby realizing automated safety cycle control.

[0026] In summary, this application has the following beneficial effects: 1. It realizes the automated feeding, orientation selection, installation and unloading process of springs and moving contact pieces, without the need for manual intervention during the production process, effectively improving production efficiency and reducing production costs.

[0027] 2. By cooperating with the directional plate, the first abutment and the second abutment, the orientation and fastening of the spring's end point are achieved, realizing a low-cost automatic orientation process. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the spring mounted on the moving contact piece according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the spring automatic orientation component according to an embodiment of this application; Figure 3 This is a schematic diagram of the contact feeding assembly according to an embodiment of this application; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the mechanical gripper arm according to an embodiment of this application; Figure 6 This is a schematic diagram of the steering component according to an embodiment of this application; Figure 7 This is a cross-sectional view of the steering component according to an embodiment of this application; Figure 8 This is an exploded view of the rotating mechanism according to an embodiment of this application; Figure 9 yes Figure 8 Enlarged view of point B in the middle; Figure 10 This is a schematic diagram of the structure of the directional component according to an embodiment of this application; Figure 11 This is an exploded view of the directional component according to an embodiment of this application; Figure 12 This is a schematic diagram of the structure of the directional component after the cover is hidden, according to an embodiment of this application; Figure 13 This is a top view of the orientation component according to an embodiment of this application; Figure 14 This is a schematic diagram of the structure of the spring fastening assembly according to an embodiment of this application; Figure 15 This is a schematic diagram of the clamping rod according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Base; 11. Support platform; 111. Through hole; 2. Conveying assembly; 21. Sliding seat; 22. First cylinder; 23. Conveying seat; 231. Fixing hole; 232. Mounting hole; 233. First proximity switch; 3. Steering assembly; 31. Mounting bracket; 32. Lifting cylinder; 33. Rotating component; 34. Spinning rod; 341. First abutment part; 342. Insertion plate; 35. Rotating mechanism; 351. Gearbox; 35 2. Mounting plate; 353. First gear; 3531. Insertion hole; 3532. Abutment hole; 354. Second gear; 355. Synchronous belt; 356. Drive motor; 36. Pressure head; 361. Positioning hole; 4. Orientation assembly; 41. Orientation seat; 411. Fixing block; 412. Receiving platform; 413. Receiving groove; 42. Orientation plate; 421. Orientation wall; 422. Extension; 423. Relief groove; 43. Positioning rod; 431. 44. Second contact part; 44. Pressure cover; 441. Clearance hole; 45. Second cylinder; 46. First clamping member; 47. Second clamping member; 48. Guide surface; 49. Slot; 491. Compression spring; 5. Machine base; 51. Feeding tray; 52. Fixture base; 53. Discharge track; 6. Spring feeding assembly; 61. Spring vibratory feeder; 62. Feeder; 7. Contact plate feeding assembly; 71. Contact plate vibratory feeder; 72. Linear feeding guide rail; 73. Loading platform; 731. Positioning slot; 8. Mechanical gripper arm; 81. Support frame; 82. Slide seat; 83. Horizontal slide table; 84. Lifting slide table; 85. Finger cylinder; 86. Gripper; 9. Spring fastening assembly; 91. Fixing frame; 92. Clamping cylinder; 93. Lifting seat; 931. Top platform; 932. Bottom platform; 933. Limiting slot; 934. Fixing bracket; 935. Second proximity switch; 94. Clamping rod; 941. Limiting block; 942. Trigger rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-15 This application will be described in further detail.

[0031] This application discloses an automatic spring orientation component and a spring assembly machine. (Refer to...) Figure 2 , Figure 3 and Figure 4The spring assembly machine includes a machine base 5, a feeding tray 51 rotatably connected to the top wall of the machine base 5, several jig seats 52 fixedly connected to the top wall of the feeding tray 51, a contact piece feeding assembly 7 disposed on the top wall of the machine base 5, a spring feeding assembly 6 disposed on the top wall of the machine base 5, a spring automatic orientation assembly disposed on one side of the spring feeding assembly 6, a spring fastening assembly 9 for fixing the spring, several mechanical clamping arms 8 for clamping the spring and contact piece, and a discharge track 53 fixedly connected to the top wall of the machine base 5. Multiple mechanical clamping arms 8 are provided and are respectively located on one side of the spring feeding assembly 6, the spring automatic orientation assembly, and the discharge track 53.

[0032] When installing the spring and the moving contact, the moving contact is conveyed to the area below the mechanical clamping arm 8 through the contact feeding assembly 7. The mechanical clamping arm 8 picks up the moving contact and places it on the fixture seat 52. The feeding tray 51 rotates to convey the moving contact to the area below the spring automatic orientation assembly. The spring feeding assembly 6 conveys the spring to the spring automatic orientation assembly for rotation. After the spring is rotated to the designated position, the mechanical clamping arm 8 on one side of the spring automatic orientation assembly clamps the spring and installs it onto the protrusion of the moving contact. The conveying tray continues to rotate to convey the fixture seat 52 to the area below the spring fastening assembly 9 to fasten the connection between the spring and the moving contact. Finally, the installed moving contact is output from the discharge track 53.

[0033] In this embodiment, the feeding tray 51 is a disc and is rotatably connected to the top wall of the machine base 5. In other embodiments, the feeding tray 51 can also be a linear track. In comparison, setting the feeding tray 51 as a disc allows the layout of all components to be more compact and occupies less space.

[0034] Reference Figure 2 , Figure 3 and Figure 4 The contact feeding assembly 7 includes a contact vibratory feeder 71, a linear feeding guide 72 connected to the contact vibratory feeder 71, and a loading platform 73 fixedly connected to the end of the linear feeding guide 72 away from the contact vibratory feeder 71. The loading platform 73 has a positioning groove 731 communicating with the linear feeding guide 72. The contact vibratory feeder 71 and the linear feeding guide 72 cooperate to transport the moving contact into the positioning groove 731. The mechanical gripper 8 picks up the moving contact from the positioning groove 731 and places it in the fixture seat 52. The linear feeding guide 72 has at least two tracks inside, and the number of positioning grooves 731 is equal to the number of tracks. Multiple tracks allow the contact feeding assembly 7 to feed multiple groups of materials simultaneously. After the mechanical gripper 8 picks up one of the contact pieces, there is no need to wait for the queuing process of individual contact pieces; the next contact piece is already in the ready position, thereby significantly reducing equipment waiting time and improving overall assembly cycle time and production efficiency.

[0035] Reference Figure 5The mechanical gripper arm 8 includes a support frame 81 fixedly connected to the top wall of the machine base 5, a slide 82 fixedly connected to the side wall of the support frame 81, a horizontal slide 83 slidably connected to the slide 82, a lifting slide 84 slidably connected to the side wall of the horizontal slide 83, a finger cylinder 85 slidably connected to the side wall of the lifting slide 84, and a gripper 86 detachably connected to the output shaft of the finger cylinder 85. The finger cylinder 85 provides a fast and stable gripping force, ensuring that the gripper 86 can stably grip the spring and the moving contact piece. Combined with the horizontal slide 83 and the lifting slide 84, it enables precise positioning and gripping. The detachably connected gripper 86 allows for quick replacement of different grippers 86 for moving contact pieces and springs of different shapes and materials, thus avoiding the need to design a separate mechanical gripper arm 8 for each workpiece and improving the equipment's versatility.

[0036] Reference Figure 2 , Figure 6 The automatic spring orientation assembly includes a base 1 fixedly connected to the top wall of the machine base 5, a conveying assembly 2 disposed on the top wall of the base 1, a steering assembly 3 disposed on one side of the conveying assembly 2, and a directional assembly 4 disposed below the steering assembly 3. A support platform 11 is fixedly connected to the side wall of the top of the base 1. The conveying assembly 2 includes a sliding seat 21 slidably connected to the top wall of the base 1, a first cylinder 22 fixedly connected to the side wall of the base 1 for driving the sliding seat 21, and a conveying seat 23 fixedly connected to the side wall of the sliding seat 21. The conveying seat 23 slides on the top wall of the support platform 11, and the conveying seat 23 has a fixing hole 231 along its thickness direction for placing the spring. A spring feeding assembly 6 is disposed above the base 1. The spring feeding assembly 6 includes a spring vibrating plate 61 fixedly connected to the top wall of the machine base 5 and a feeder 62 fixedly connected to the top wall of the base 1 for placing the spring into the fixing hole 231. The feeder 62 is connected to the spring vibrating plate 61 through a transparent flexible tube.

[0037] During conveying, the conveyor seat 23 is located below the feeder 62. The spring vibrating plate 61 conveys the spring to the feeder 62. The feeder 62 drops the springs one by one into the fixing hole 231 of the conveyor seat 23. The first cylinder 22 is activated so that the sliding seat 21 can drive the conveyor seat 23 to move below the steering assembly 3, thereby facilitating the steering assembly 3 to perform steering and orientation operations on the spring.

[0038] Reference Figure 6 , Figure 7 The side wall of the conveyor seat 23 has a mounting hole 232 communicating with the fixing hole 231. A first proximity switch 233, which is electrically connected to the first cylinder 22, is fixedly connected in the mounting hole 232. The sensing part of the first proximity switch 233 faces the fixing hole 231. The first proximity switch 233 can detect whether a spring has fallen into the mounting hole 232. When the spring falls into the mounting hole 232, the first proximity switch 233 sends a signal, causing the first cylinder 22 to start and drive the conveyor seat 23 to slide, thereby realizing automated conveying.

[0039] Reference Figure 6 , Figure 7 The steering assembly 3 includes a mounting bracket 31 fixedly connected to the top wall of the machine base 5 and located on one side of the base 1, a lifting cylinder 32 fixedly connected to the top wall of the mounting bracket 31, a rotating component 33 fixedly connected to the output shaft of the lifting cylinder 32, a spinning rod 34 rotatably connected to the rotating component 33, a rotating mechanism 35 for driving the spinning rod 34 to rotate, and a pressure head 36 fixedly connected to the end of the spinning rod 34. The support platform 11 has a through hole 111 for the spring to fall, and the pressure head 36 is directly opposite the through hole 111. After the conveyor seat 23 conveys the spring to the designated position, the spring will fall into the orientation assembly 4 along the through hole 111. The lifting cylinder 32 drives the spinning rod 34 to press down, and the rotating mechanism 35 drives the spinning rod 34 to rotate, thereby realizing the steering of the spring.

[0040] Reference Figure 8 , Figure 9 The rotating mechanism 35 includes a gear box 351 fixedly connected to the side of the mounting frame 31 near the support platform 11, a mounting plate 352 fixedly connected to the side of the mounting frame 31 away from the gear box 351, a first gear 353 rotatably connected inside the gear box 351, a second gear 354 rotatably connected to the top wall of the mounting plate 352, a synchronous belt 355 sleeved around the outer periphery of the first gear 353 and the second gear 354, and a drive motor 356 fixedly connected to the bottom wall of the mounting plate 352 for driving the second gear 354 to rotate. The side wall of the spinning rod 34 is fixedly connected to a plug plate 342. The shaft of the first gear 353 has a plug hole 3531 for inserting the spinning rod 34. The inner wall of the plug hole 3531 has an abutment hole 3532 for inserting the plug plate 342. The plug plate 342 is provided with a plurality of holes evenly arranged along the outer periphery of the spinning rod 34. The inner wall of the abutment hole 3532 abuts against the outer wall of the plug plate 342.

[0041] The insertion plate 342 engages with the abutment hole 3532, allowing the first gear 353 to rotate while simultaneously driving the spinning rod 34 to rotate, without affecting the downward pressing operation of the spinning rod 34. Multiple insertion plates 342 are arranged circumferentially along the rod portion of the spinning rod 34, ensuring uniform force distribution on the spinning rod 34, providing stable and controllable rotational torque, and ensuring uniform force distribution on the spring during steering.

[0042] Reference Figure 6 , Figure 10The directional assembly 4 includes a directional seat 41 slidably connected to the side wall of the base 1, a directional plate 42 fixedly connected to the top wall of the directional seat 41, a positioning rod 43 passing through the directional seat 41 and abutting against the side wall of the directional plate 42, a pressure cover 44 fixedly connected to the top wall of the directional seat 41 for fixing the directional plate 42, and a second cylinder 45 for driving the directional seat 41 to slide. The bottom of the pressure cover 44 abuts against the top wall of the directional plate 42. The pressure cover 44 has a relief hole 441 for the pressure head 36 to press down. The positioning rod 43 is disposed in the relief hole 441. The directional seat 41 is disposed below the support platform 11. The directional plate 42 has a directional wall 421 at one end near the positioning rod 43. The directional wall 421 is used for the end point of the spring to abut.

[0043] After the spinning rod 34 is pressed down, the spring is pushed into the clearance hole 441. At this time, the spring is sleeved on the positioning rod 43 to prevent the spring from bending when the spinning rod 34 is pressed down. The spinning rod 34 rotates, causing the spring to rotate and perform circumferential search until the end of the spring abuts against the orientation wall 421, thereby completing the orientation operation of the spring. This makes it convenient for the mechanical clamping arm 8 to install the spring on the protrusion of the moving contact piece, so that the end point can be in the middle position of the protrusion.

[0044] Reference Figure 11 , Figure 12 and Figure 13 The guide plate 42 has an extension 422 near the positioning rod 43. The extension 422 has a relief groove 423 that fits against the outer wall of the positioning rod 43. The guide walls 421 are located on both sides of the inner wall of the relief groove 423 and are connected to it. The relief groove 423 ensures a tight fit between the guide plate 42 and the positioning rod 43, preventing the spring from getting stuck in the gap between the positioning rod 43 and the guide plate 42, thus hindering smooth rotation. By changing the included angle between the guide walls 421 on both sides of the relief groove 423, the position of the spring's termination point can be changed, thus facilitating adaptation to different moving contact pieces.

[0045] Reference Figure 7 , Figure 8 The pressure head 36 has a positioning hole 361 along its axial direction for inserting the positioning rod 43. The end of the spinning rod 34 is a first abutment part 341 that extends into the positioning hole 361, and the end of the positioning rod 43 is a second abutment part 431 for abutting against the end face of the first abutment part 341. After the pressure head 36 presses the spring into the relief hole 441, the end faces of the first abutment part 341 and the second abutment part 431 abut against each other, thereby preventing the pressure head 36 from continuing to press down and causing the spring to be over-compressed. The diameters of the first abutment part 341 and the second abutment part 431 gradually decrease towards the opposite side, thereby facilitating the spring to fit onto the first abutment part 341 and the second abutment part 431 and preventing the spring from bending.

[0046] Reference Figure 11A fixing block 411 is provided on the top of the directional seat 41. A first clamping member 46 passes through the fixing block 411. The side wall of the pressure cover 44 fits against the side wall of the fixing block 411. The inner wall of the clearance hole 441 extends to the side wall of the pressure cover 44 near the fixing block 411. A second clamping member 47 is provided through the pressure cover 44 and is opposite to the first clamping member 46. A receiving platform 412 is fixedly connected to both ends of the directional seat 41. A receiving groove 413 is opened on the side of the receiving platform 412 facing each other. A compression spring 491 is provided inside the receiving groove 413. A slot 49 is opened on the side of the first clamping member 46 and the second clamping member 47 facing away from each other. One end of the compression spring 491 abuts against the inner wall of the receiving groove 413, and the other end abuts against the inner wall of the slot 49.

[0047] After the spring is oriented, the first clamping member 46 and the second clamping member 47 cooperate to effectively clamp the spring. The compression springs 491 on both sides ensure that the first clamping member 46 and the second clamping member 47 can firmly clamp the spring, thereby ensuring that the spring will not rotate during the movement of the oriented seat 41.

[0048] Reference Figure 11 , Figure 12 The top of both the first clamping member 46 and the second clamping member 47 is provided with a guide surface 48. When the spinning rod 34 is pressed down, the pressure head 36 will abut against the guide surface 48, causing the first clamping member 46 and the second clamping member 47 to move to opposite sides, preventing the first clamping member 46 and the second clamping member 47 from affecting the spring and causing the spring to be unable to rotate and orient smoothly.

[0049] Reference Figure 14 , Figure 15 The spring fastening assembly 9 includes a fixed frame 91 fixedly connected to the top wall of the machine base 5, a pressing cylinder 92 fixedly connected to the top wall of the fixed frame 91, a lifting seat 93 fixedly connected to the output shaft of the pressing cylinder 92, and a pressing rod 94 passing through and slidably connected to the lifting seat 93. Limiting blocks 941 are fixedly connected to the opposite side walls of the pressing rod 94. The lifting seat 93 includes a top platform 931 and a bottom platform 932. The top platform 931 and the bottom platform 932 are parallel to each other and spaced apart to form a limiting groove 933 for the limiting block 941 to move.

[0050] The pressing cylinder 92 pushes the lifting seat 93 down. When the bottom of the pressing rod 94 contacts the spring, the pressing rod 94 moves upward until the limiting block 941 abuts against the inner top wall of the limiting groove 933. At this time, the lifting seat 93 continues to press down, and the pressing rod 94 can fasten the spring to the protrusion of the moving contact piece.

[0051] Reference Figure 14 , Figure 15The top wall of the clamping rod 94 is fixedly connected to a trigger rod 942 that passes through the top platform 931. The side wall of the top platform 931 is fixedly connected to a fixing bracket 934, and a second proximity switch 935 passes through the fixing bracket 934, directly opposite the trigger rod 942. When the clamping rod 94 moves upward, the second proximity switch 935 can detect the trigger rod 942, thereby sending a signal to confirm that the protrusion of the moving contact piece is fitted with a spring and is tightened. After the tightening is completed, the feeding tray 51 can continue to rotate.

[0052] The implementation principle of the automatic spring orientation assembly and spring assembly machine in this application embodiment is as follows: the contact vibratory plate 71 enters the loading table 73 through the linear feeding guide 72, the mechanical clamping arm 8 clamps the moving contact and conveys it to the fixture seat 52 of the feeding plate 51, the feeding plate 51 rotates to rotate the moving contact to one side of the automatic spring orientation assembly, the spring vibratory plate 61 conveys the spring to the unloader 62, the unloader 62 controls the springs to be unloaded in sequence and enter the conveyor seat 23, the first proximity switch 233 senses the spring and sends a signal, the first cylinder 22 starts and moves the conveyor seat 23 to below the steering assembly 3, and the springs are released from the support. The spring is lowered into the directional seat 41 through the through hole 111 of the support platform 11. The spinning rod 34 is pressed down and rotated so that the end point of the spring abuts against the directional wall 421, thereby completing the orientation of the spring. The second cylinder 45 pushes the directional seat 41 to the bottom of the mechanical clamping arm 8. The mechanical clamping arm 8 places the spring on the protrusion of the moving contact piece. The feeding plate 51 continues to rotate to transport the moving contact piece with the spring to the bottom of the spring fastening assembly 9. The clamping cylinder 92 drives the clamping rod 94 to descend, ensuring that the spring is fastened to the protrusion of the moving contact piece. Finally, the mechanical clamping arm 8 removes the installed moving contact piece from the fixture seat 52, completing the spring assembly.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A spring auto-orienting assembly, comprising: Include: The seat body (1), one end of the top wall of the seat body (1) is fixedly connected with the support table (11); The conveying assembly (2) includes a sliding seat (21) slidingly connected to the top wall of the seat body (1), a first air cylinder (22) fixedly connected to the side wall of the seat body (1) for driving the sliding seat (21), and a conveying seat (23) fixedly connected to the side wall of the sliding seat (21), the conveying seat (23) is sliding on the top wall of the support table (11), the conveying seat (23) is provided with a fixed hole (231) for placing a spring; The steering assembly (3) includes a mounting bracket (31) arranged on one side of the seat body (1), a lifting cylinder (32) fixedly connected to the top wall of the mounting bracket (31), a rotating member (33) fixedly connected with the output shaft of the lifting cylinder (32), a rotary pressure rod (34) rotatably connected with the rotating member (33), a rotating mechanism (35) for driving the rotary pressure rod (34) to rotate, and a pressure head (36) fixedly connected to the end of the rotary pressure rod (34), the support table (11) is provided with a through hole (111) for the spring to fall, and the pressure head (36) is opposite to the through hole (111); The orientation assembly (4) includes a orientation seat (41) slidingly connected to the side wall of the seat body (1), a orientation plate (42) fixedly connected to the top wall of the orientation seat (41), a positioning rod (43) penetrating through the orientation seat (41) and abutting against the side wall of the orientation plate (42), a gland (44) fixedly connected to the top wall of the orientation seat (41), and a second air cylinder (45) for driving the sliding of the orientation seat (41), the bottom of the gland (44) abuts against the top wall of the orientation plate (42), the gland (44) is provided with a clearance hole (441) for the pressure head (36) to press down, the positioning rod (43) is arranged in the clearance hole (441), the orientation seat (41) is arranged below the support table (11), the orientation plate (42) is provided with a orientation wall (421) near one end of the positioning rod (43), and the orientation wall (421) is used for abutting against the end point of the spring.

2. The spring auto-directional component of claim 1, wherein, The orientation plate (42) is provided with an extension (422) near one end of the positioning rod (43), the extension (422) is provided with a clearance groove (423), the side wall of the positioning rod (43) abuts against the inner wall of the clearance groove (423), and the orientation wall (421) is connected with the inner wall of the clearance groove (423).

3. The spring auto-directional component of claim 1, wherein, The pressure head (36) is provided with a positioning hole (361) for the positioning rod (43) to insert along the axial direction, the end of the rotary pressure rod (34) is a first abutting portion (341), the first abutting portion (341) is arranged in the positioning hole (361), the end of the positioning rod (43) is a second abutting portion (431), and the diameters of the first abutting portion (341) and the second abutting portion (431) gradually decrease towards one side.

4. The spring auto-directional component of claim 1, wherein, The directional seat (41) is provided with a fixed block (411) on the top, the sidewall of the gland (44) is attached to the sidewall of the fixed block (411), the fixed block (411) is provided with a first clamping piece (46), the gland (44) is provided with a second clamping piece (47), the first clamping piece (46) and the second clamping piece (47) are oppositely arranged, the first clamping piece (46) and the second clamping piece (47) are both provided with a guide surface (48) on the top, the directional seat (41) is fixedly connected with a containing table (412) at both ends, the containing table (412) is provided with a containing groove (413) on the side facing each other, the containing groove (413) is provided with a compression spring (491) inside, the first clamping piece (46) and the second clamping piece (47) are both provided with a clamping groove (49), one end of the compression spring (491) is in abutment with the inner wall of the containing groove (413), and the other end is in abutment with the inner wall of the clamping groove (49).

5. The spring auto-directional component of claim 1, wherein, The rotating mechanism (35) comprises a gear box (351) fixedly connected to one side of the mounting rack (31) close to the support table (11), an installation plate (352) fixedly connected to the side of the mounting rack (31) away from the gear box (351), a first gear (353) rotationally connected in the gear box (351), a second gear (354) rotationally connected to the top wall of the installation plate (352), a synchronous belt (355) sleeved on the outer peripheries of the first gear (353) and the second gear (354), and a driving motor (356) fixedly connected to the bottom wall of the installation plate (352) and used for driving the second gear (354) to rotate, the side wall of the spinning rod (34) is fixedly connected with a plug-in plate (342), the shaft center of the first gear (353) is provided with a plug-in hole (3531) for the spinning rod (34) to plug into, and the inner wall of the plug-in hole (3531) is provided with an abutment hole (3532) for the plug-in plate (342) to plug into.

6. The spring auto-directional component of claim 1, wherein, The side wall of the conveying seat (23) is provided with a mounting hole (232) in communication with the fixing hole (231), and the mounting hole (232) is provided with a first proximity switch (233).

7. A spring assembly machine characterized by, The device comprises a machine table (5), a feeding disc (51) rotatably connected to the top wall of the machine table (5), a jig seat (52) fixedly connected to the top wall of the feeding disc (51), a spring feeding assembly (6) arranged on the top wall of the machine table (5), a contact piece feeding assembly (7) arranged on the top wall of the machine table (5), a mechanical clamping arm (8) for clamping the spring and the contact piece, a spring fastening assembly (9) for fixing the spring, the spring automatic direction selecting assembly according to any one of claims 1-6, and a discharging track (53) fixedly connected to the top wall of the machine table (5), the spring feeding assembly (6) comprises a spring vibrating disc (61) fixedly connected to the top wall of the machine table (5) and a feeder (62) for placing the spring into the fixed hole (231), the contact piece feeding assembly (7) comprises a contact piece vibrating disc (71), a linear feeding guide rail (72) connected to the contact piece vibrating disc (71), and a feeding table (73) fixedly connected to the end of the linear feeding guide rail (72), the feeding table (73) is provided with a positioning groove (731) in communication with the linear feeding guide rail (72), and the mechanical clamping arm (8) is provided with at least three and is arranged on one side of the spring automatic direction selecting assembly, the contact piece feeding assembly (7) and the discharging track (53) respectively.

8. The spring assembly machine of claim 7, wherein, The mechanical clamping arm (8) comprises a support frame (81) fixedly connected to the top wall of the machine table (5), a sliding seat (82) fixedly connected to the side wall of the support frame (81), a horizontal sliding table (83) slidingly connected to the sliding seat (82), a lifting sliding table (84) slidingly connected to the side wall of the horizontal sliding table (83), a finger air cylinder (85) slidingly connected to the side wall of the lifting sliding table (84), and a clamping jaw (86) detachably connected to the output shaft of the finger air cylinder (85).

9. The spring assembly machine of claim 7, wherein, The spring fastening assembly (9) comprises a fixed frame (91) fixedly connected to the top wall of the machine table (5), a pressing cylinder (92) fixedly connected to the top wall of the fixed frame (91), a lifting seat (93) fixedly connected to the output shaft of the pressing cylinder (92), and a pressing rod (94) penetratingly and slidingly connected to the lifting seat (93), the side wall of the pressing rod (94) is fixedly connected with a limiting block (941), and the lifting seat (93) comprises a top table (931) and a bottom table (932), and a limiting groove (933) for the movement of the limiting block (941) is formed between the top table (931) and the bottom table (932).

10. The spring assembly machine of claim 9, wherein, The top wall of the pressing rod (94) is fixedly connected with a trigger rod (942) penetratingly arranged in the top table (931), the side wall of the top table (931) is fixedly connected with a fixed support (934), and the fixed support (934) is penetratingly arranged with a second proximity switch (935) opposite to the trigger rod (942).

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