Ball head torque control rivet forming machine

Abstract

A ball head torque setting rivet forming machine is provided with a clamp, a rivet device, a lifting device and a torque device on a machine table. The clamp holds a ball head seat on a platform, and a ball head center is connected with a ball head rod. The rivet device controls a first driver to drive a spindle and a rivet to rotate. The lifting device controls a second driver to drive a screw rod to displace a rivet seat along a fixed seat downward, so that each rivet wheel gradually presses the top flange of the ball head seat inward to press the ball head. The torque device controls a servo motor to drive a torque shaft and a transmission shaft to rotate, and rotates the ball head through the ball head rod to reach a torque setting value. The ball head is formed by riveting combination while detecting the set torque, so as to reach the torque value required by rotating the ball head, thereby improving the production efficiency and yield, and saving manpower and resources.

Description

Technical Field

[0001] This utility model relates to the field of ball head riveting technology, and more particularly to a ball head fixed-torque riveting machine. Background Technology

[0002] A typical tie rod ball joint mainly serves as a pivot joint in mechanical transmission and steering mechanisms. In traditional technology, a tie rod ball joint includes at least a ball joint seat and a center ball joint. A wear-resistant component is installed inside the ball joint seat and between the ball joint and the center ball joint. A riveting tool is then used to rivet the top flange of the ball joint seat, causing the flange to press inward against and tighten the center ball joint to produce the finished tie rod ball joint.

[0003] After the tie rod ball joint is riveted and assembled, a torque testing machine is used to measure the torque required to rotate the ball joint. If the torque is less than or greater than the predetermined torque setting, the tie rod ball joint becomes a defective product and must be reprocessed or discarded, resulting in a waste of manpower, resources, and time, and affecting the quality of the tie rod ball joint. Therefore, how to solve the above problems is a topic that industry players urgently need to study. Utility Model Content

[0004] The main purpose of this invention is to utilize the riveting device, lifting device and torque device to work together to detect and set the torque at the ball head while it is being riveted and assembled, so as to achieve the torque value required to rotate the ball head, thereby improving production efficiency and yield, and saving manpower and material resources.

[0005] To achieve the above objectives, the present invention provides a ball head fixed-torque spin riveting forming machine, comprising a machine platform, a riveting device, a lifting device, and a torque device. Specifically: the machine platform has a clamp on the platform, and a fixed base is erected behind the clamp on the platform. The clamp has multiple jaws spaced circumferentially for holding the ball head seat, and a ball head rod is connected to the center of the ball head. The riveting device includes a riveting seat, a main shaft, a riveting tool, and a first driver. The riveting seat is slidably disposed on the front side of the fixed base. The main shaft is pivotally mounted through the riveting seat. The riveting tool is fixed to the bottom end of the main shaft and includes multiple riveting wheels spaced circumferentially, each riveting wheel facing downwards towards the ball head seat. The first driver is disposed on the riveting seat and drives the main shaft to rotate. The lifting device includes a second driver and a screw. The second driver is disposed on the fixed base, and the screw is vertically mounted. The screw is pivotally connected to the fixed base, and the screw is connected to the second driver and the riveting seat respectively. The torque device is vertically arranged facing the center of the fixture. The torque device includes a servo motor, a torque controller and a drive shaft arranged in sequence on the torque base. The two ends of the torque shaft of the torque controller are respectively directly connected to the servo motor and the drive shaft. The end connector of the drive shaft is connected to the ball head rod. The riveting device controls the first driver to drive the main shaft and the riveting tool to rotate. The lifting device controls the second driver to drive the screw to move the riveting seat downward along the fixed base, so that each riveting wheel gradually presses the ball head against the top flange of the ball head seat. The torque device controls the servo motor to drive the torque shaft and the drive shaft to rotate. The ball head is rotated through the ball head rod to reach the torque set value. Then the riveting device and the lifting device are controlled to stop.

[0006] In the aforementioned ball head fixed torsion riveting forming machine, a guide rail is provided in a straight direction on the front side of the fixed base of the machine table, a sliding seat is provided on the riveting seat corresponding to the guide rail, and a screw seat is provided on the riveting seat corresponding to the screw rod. The first driver is provided behind the fixed base of the riveting seat, and the first driver and the top of the main shaft are each provided with a pulley connecting the belt.

[0007] In the aforementioned ball-head fixed-torsion riveting forming machine, the fixed base and the riveting base are equipped with detectors to detect and set the vertical movement limit positions of the riveting base.

[0008] In the aforementioned ball head fixed torsion riveting forming machine, a fixed column is erected on the riveting seat, the torque seat is set on the fixed column, the main shaft is provided with a shaft hole that runs vertically through the shaft, and the drive shaft and the connector pass through the shaft hole and the center of the riveting device.

[0009] The aforementioned ball head fixed torsion riveting forming machine includes a drive shaft comprising a polygonal shaft and a sleeve. The sleeve has polygonal holes and slides up and down on the polygonal shaft. The top of the polygonal shaft is connected to the torsion shaft, and the connector is connected to the bottom of the sleeve.

[0010] In the aforementioned ball head fixed torsion riveting forming machine, the sleeve is provided with a pin that radially penetrates the joint, and the joint is connected to and fixedly extends the ball head rod upward.

[0011] The aforementioned ball head fixed torsion riveting forming machine further includes a correction mechanism disposed behind the fixture. The correction mechanism includes two pneumatic cylinders, which are respectively disposed on opposite sides of the correction mechanism. Each of the two pneumatic cylinders is connected to a clamping member. The two pneumatic cylinders drive the two clamping members to clamp and guide the ball head rod accordingly.

[0012] In the aforementioned ball head fixed torsion riveting forming machine, a fixed column is provided vertically at the bottom of the platform, the torque seat is provided on the fixed column, and the drive shaft and the joint can extend upward into the center of the fixture.

[0013] The aforementioned ball head fixed torsion riveting forming machine includes a drive shaft comprising a polygonal shaft and a sleeve. The sleeve has polygonal holes and slides up and down on the polygonal shaft. The bottom end of the polygonal shaft is connected to the torsion shaft. The connector is connected to the top end of the sleeve and is connected to the ball head rod extending downwards.

[0014] In the aforementioned ball head fixed torsion riveting forming machine, the torque seat and the outer side of the sleeve are connected by a pneumatic cylinder.

[0015] The ball head fixed torque riveting forming machine of this utility model can utilize the riveting device, lifting device and torque device to work together to detect and set the torque while the ball head is being riveted and assembled, so as to achieve the torque value required to rotate the ball head, thereby improving production efficiency and yield, and saving manpower and material resources. Attached Figure Description

[0016] Figure 1 This is a perspective view (I) of the ball head fixed torsion riveting forming machine of this utility model.

[0017] Figure 2 This is a perspective view (II) of the ball head fixed torsion riveting forming machine of this utility model.

[0018] Figure 3 This is an exploded perspective view of the ball head fixed-torque riveting forming machine and riveting device of this utility model.

[0019] Figure 4 This is a perspective view of the torque device above the ball head fixed-torque riveting forming machine of this utility model.

[0020] Figure 5 This is a three-dimensional enlarged view of the fixture for the ball head riveting machine of this utility model, showing the ball head seat being prepared for clamping.

[0021] Figure 6 This is a three-dimensional enlarged view of the ball head seat clamped by the fixture of the ball head fixed torsion riveting machine of this utility model.

[0022] Figure 7 This is a top view of the ball head seat clamped by the fixture of the ball head fixed torsion riveting machine of this utility model.

[0023] Figure 8 This is a side sectional view of the ball head fixed torsion riveting forming machine of this utility model.

[0024] Figure 9 yes Figure 8 Enlarged view of part A.

[0025] Figure 10 It is a continuation Figure 9 A schematic diagram of the riveting device and torque device riveting operation with a downward fixed torque.

[0026] Figure 11 This is a perspective view of the torque device below the ball head fixed-torque riveting forming machine of this utility model.

[0027] Figure 12 This is a side cross-sectional view of the lower torque device used in the ball head fixed torsion riveting forming machine of this utility model.

[0028] Figure 13 yes Figure 12 Enlarged view of part B.

[0029] Figure 14 It is a continuation Figure 13 A schematic diagram of the ball head fixed-torque riveting action.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Machine base 45, connector

[0032] 11. Platform 451, Screw Hole

[0033] 12. Fixing base 452, pin hole

[0034] 121. Guide rail; 46. Gear

[0035] 13. Fixture 461. Wheel and axle

[0036] 131. Gripper; 462. Handle

[0037] 14. Fixing post; 47. Positioning component

[0038] 141. Rack and pinion 5. Torque device

[0039] 2. Riveting device 51. Torque seat

[0040] 21. Riveting seat 511. Coupling

[0041] 211, slide block; 512, bearing.

[0042] 212, Screw connector 52, Servo motor

[0043] 22. Main shaft 521. Reducer

[0044] 221. Pulley; 522. Shaft

[0045] 222, Bearings; 523, Couplings

[0046] 223, shaft hole 53, torque controller

[0047] 23. Riveting tool 531. Torque shaft

[0048] 231. Riveting wheel; 54. Drive shaft

[0049] 232, Screws; 541, Multi-angle shafts

[0050] 24. First driver 542. Socket connector

[0051] 241, Pulley; 543, Connecting hole

[0052] 242, belt 544, polygonal hole

[0053] 25. Fixing post 545. Pin

[0054] 251, rack and pinion 546, pin hole

[0055] 26. Detector; 55. Connector

[0056] 27. Electrical switch assembly 551. Screw hole

[0057] 3. Lifting device 552, pin hole

[0058] 31. Second drive; 56. Gear

[0059] 311, reducer; 561, wheel and axle

[0060] 32. Screw 562. Handle

[0061] 4. Torque device; 57. Positioning component

[0062] 41. Torque seat 58. Pivot connector seat

[0063] 411. Coupling; 59. Pneumatic cylinder

[0064] 412, bearing; 591, piston rod

[0065] 42. Servo motor; 6. Calibration mechanism

[0066] 421, Reducer; 61, Base

[0067] 422, Shaft 62, Pneumatic Cylinder

[0068] 423. Coupling; 621. Piston rod

[0069] 43. Torque controller; 63. Clamping parts

[0070] 431. Torque shaft; 64. Screw.

[0071] 44. Drive shaft 65. Guide groove

[0072] 441, polygonal shaft 7, ball head

[0073] 442, Socket connector 71, Ball head seat

[0074] 443, guide ring 711, flange

[0075] 444, Multi-faceted Hole 72, Ball Head Cudgel

[0076] 445, pin 721, thread

[0077] 446. Pin hole. Detailed Implementation

[0078] To achieve the above objectives, the present invention employs the following technical means and achieves the following technical effects: feasible embodiments are provided, and the description is accompanied by accompanying drawings:

[0079] First, please refer to Figures 1 to 9 As shown in the figure, the ball head fixed-torque riveting forming machine of this utility model includes a machine table 1, a riveting device 2, a lifting device 3, two torque devices 4 and 5, and a correction mechanism 6, wherein:

[0080] The machine tool 1 has a clamp 13 mounted on a platform 11. A fixed base 12 is erected on the platform 11 behind the clamp 13, and a guide rail 121 is vertically mounted on the front side of the fixed base 12. A fixed post 14 is vertically mounted on the bottom of the platform 11. The clamp 13 has multiple grippers 131 arranged circumferentially at intervals for gripping the ball head seat 71 (see reference). Figure 5 , Figure 6 , Figure 9 The ball head 7 extends upwards and is connected to the ball head rod 72.

[0081] The riveting device 2 includes a riveting seat 21, a main shaft 22, a riveting tool 23, and a first driver 24. The riveting seat 21 is slidably disposed on the front side of the fixed seat 12. The riveting seat 21 is provided with a slide 211 corresponding to the guide rail 121. A fixed post 25 and a screw seat 212 are erected on the riveting seat 21. The main shaft 22 is provided with a shaft hole 223 that runs vertically through it. The main shaft 22 is pivotally disposed between the riveting seat 21 and the bearing 222. The riveting tool 23 is fixed to the bottom end of the main shaft 22 with a screw 232. The riveting tool 23 includes a plurality of riveting wheels 231 that are pivotally disposed circumferentially. Each riveting wheel 231 faces downward toward the ball head seat 71. The riveting base 21 is provided with the first driver 24 behind the fixed base 12. The first driver 24 and the top of the main shaft 22 are respectively provided with pulleys 221 and 241 and connected to belt 242. The first driver 24, in conjunction with the electrical switch group 27, drives the main shaft 22 to rotate. The fixed base 12 and the riveting base 21 are respectively provided with a detector 26 to detect and set the vertical movement limit position of the riveting base 21.

[0082] The lifting device 3 includes a servo motor type second driver 31 and a screw 32. The second driver 31 and the reducer 311 are disposed on the fixed base 12. The screw 32 is pivotally connected to the fixed base 12 in a straight line. The screw 32 is connected to the second driver 31 and then screwed to the screw seat 212 of the riveting seat 21.

[0083] The torque device 4 has a torque seat 41 mounted on the fixed column 25. The torque device 4 includes a servo motor 42, a torque controller 43, and a drive shaft 44 sequentially mounted on the torque seat 41. The torque shaft 431 of the torque controller 43 is fitted with couplings 411 and 423 and bearings 412 at both ends (see reference). Figure 4 and Figure 8 The reducer 421 shaft 422 of the servo motor 42 is directly connected to the drive shaft 44, and the bottom connector 45 of the drive shaft 44 is connected to the ball joint 72. The drive shaft 44 and the connector 45 pass downward through the shaft hole 223 and the center of the riveting device 23. The drive shaft 44 includes a polygonal shaft 441, a sleeve 442 and a guide ring 443. The sleeve 442 has a polygonal hole 444, which slides up and down on the polygonal shaft 441. The top of the polygonal shaft 441 is connected to the torque shaft 431. The sleeve 442 has a pin 445 that radially passes through the connector 45 and pin holes 446 and 452. The connector 45 is locked with the thread 721 of the upwardly extending ball joint 72 by a screw hole 451. The torque seat 41 is pivotally connected to the rack 251 of the fixed column 25 with a gear 46. The gear 46 and the axle 461 are rotated by the handle 462 to adjust the height of the torque seat 41 in accordance with the length of the ball joint 72, and then fixed in place with the positioning piece 47.

[0084] The torque device 5 has a torque seat 51 mounted on a fixed column 14 below the platform 11, such as... Figure 1 , Figure 2 , Figure 11 , Figure 12 , Figure 13 As shown, the torque device 5 has a servo motor 52, a torque controller 53 and a drive shaft 54 ​​arranged sequentially on the torque seat 51. The torque shaft 531 of the torque controller 53 is fitted with couplings 511 and 523 and bearings 512 at both ends to directly connect the reducer 521 shaft 522 of the servo motor 52 and the drive shaft 54 ​​respectively. The drive shaft 54 ​​and the connector 55 can extend upwards out of the center of the clamp 13. The drive shaft 54 ​​includes a polygonal shaft 541 and a sleeve 542. The bottom of the sleeve 542 has a polygonal hole 544 that slides up and down to fit the polygonal shaft 541. The bottom end of the polygonal shaft 541 is connected to the torque shaft 531. The top connection hole 543 of the sleeve 542 has a pin 545 that radially passes through the connector 55 and pin holes 546 and 552. The torque seat 51 and the outer pivot seat 58 of the sleeve 542 are connected vertically by a pneumatic cylinder 59 and a piston rod 591. The torque seat 51 is pivotally connected to the rack 141 of the fixed column 14 by a gear 56. The gear 56 and the axle 561 are rotated by the handle 562 to adjust the height position of the torque seat 51 in accordance with the length of the ball joint 72, and then fixed with the positioning member 57.

[0085] The base 61 of the calibration mechanism 6 is located behind the fixed seat 12 of the clamp 13, and is used in conjunction with the screw 64 and the guide groove 65 to adjust the set height position. The calibration mechanism 6 includes two pneumatic cylinders 62, which are located on opposite sides of the calibration mechanism 6. The two pneumatic cylinders are connected to two different clamps 63 through their respective piston rods 621. The two pneumatic cylinders 62 drive the two clamps 63 to clamp and guide the ball head rod 72, so as to facilitate the combination and connection of the drive shaft 44, the connector 45 and the ball head rod 72.

[0086] Please see Figures 8 to 10The drive shaft 44 of the torque device 4 is locked to the upright ball head rod 72 via a connector 45. The riveting device 2 controls the first driver 24 to drive the main shaft 22 and the riveting tool 23 to rotate, and the lifting device 3 controls the second driver 31 to drive the screw 32 to move the riveting seat 21 downward along the fixed base 12, so that each riveting wheel 231 gradually presses the top flange 711 of the ball head seat 71 inward against the ball head 7. The torque device 4 controls the servo motor 42. The torque shaft 431 and the transmission shaft 44 are driven to rotate, and the ball head 7 is rotated through the ball head rod 72 to achieve the torque setting value set by the torque controller 43. Then, the riveting device 2 and the lifting device 3 are controlled to stop. The lifting device 3 then drives the riveting device 2 to move upward. Then, the ball head 7 and the ball head seat 71 are removed and unloaded. The ball head 7 is tested for the set torque while being riveted and assembled to achieve the torque value required to rotate the ball head 7, thereby improving production efficiency and yield, and saving manpower and material resources.

[0087] Please see Figure 1 , Figures 11 to 14 When the flange 711 of the ball head seat 71 and the ball head rod 72 face different directions, the ball head rod 72 of the ball head 7 extends downward into the center of the clamp 13. The pneumatic cylinder 59 of the torque device 5 first pushes the sleeve 542 and the connector 55 of the drive shaft 54 ​​upward to lock the downward-facing ball head rod 72 of the ball head 7. The riveting device 2 controls the first driver 24 to drive the main shaft 22 and the riveting tool 23 to rotate, and the lifting device 3 controls the second driver 31 to drive the screw 32 to move the riveting seat 21 downward along the fixed seat 12, so that each of the riveting wheels 231 rivets the top of the ball head seat 71. The flange 711 gradually presses inward against the ball head 7, while the torque device 5 controls the servo motor 52 to drive the torque shaft 531 and the transmission shaft 54 ​​to rotate. The ball head 7 is rotated through the ball head rod 72 to achieve the torque setting value set by the torque controller 53. Then, the riveting device 2 and the lifting device 3 are stopped. The lifting device 3 then drives the riveting device 2 to move upward. The ball head 7 and the ball head seat 71 are then removed and taken out. The ball head 7 is tested for the set torque while being riveted and assembled to achieve the torque value required to rotate the ball head 7, thereby improving production efficiency and yield, and saving manpower and resources.

[0088] The embodiments listed above are only for the convenience of illustrating the present utility model and are not intended to limit it. Various simple changes and modifications that can be made by those skilled in the art without departing from the spirit and scope of the present utility model should still be included within the protection scope of the claims.

Claims

1. A ball head fixed-torque riveting forming machine, comprising a machine table, a riveting device, a lifting device, and a torque device, characterized in that: The machine is equipped with a clamp on the platform, and a fixed base is erected on the platform behind the clamp. The clamp is provided with multiple grippers spaced around it to hold the ball head seat, and a ball head rod is connected to the center of the ball head. The riveting device includes a riveting seat, a main shaft, a riveting tool, and a first driver. The riveting seat is slidably disposed on the front side of the fixed seat. The main shaft is pivotally disposed through the riveting seat. The riveting tool is fixed to the bottom end of the main shaft and includes a plurality of riveting wheels arranged circumferentially. Each riveting wheel faces downward toward the ball head seat. The first driver is disposed on the riveting seat and drives the main shaft to rotate. The lifting device includes a second driver and a screw. The second driver is mounted on the fixed base, and the screw is pivotally connected to the fixed base in a straight line. The screw is also connected to the second driver and the riveting base. The torque device is vertically positioned towards the center of the clamp. The torque device includes a servo motor, a torque controller, and a drive shaft arranged sequentially on a torque seat. The two ends of the torque shaft of the torque controller are respectively directly connected to the servo motor and the drive shaft. The end connector of the drive shaft is connected to the ball joint. The riveting device controls the first driver to drive the main shaft and the riveting tool to rotate, and the lifting device controls the second driver to drive the screw to move the riveting seat downward along the fixed seat, so that each riveting wheel gradually presses the ball head against the top flange of the ball head seat. The torque device controls the servo motor to drive the torque shaft and the transmission shaft to rotate, and rotates the ball head through the ball head rod to reach the torque set value, and then controls the riveting device and the lifting device to stop operating.

2. The ball-end swage machine of claim 1 wherein, The machine tool has a guide rail directly on the front side of the fixed base, a sliding seat corresponding to the guide rail, and a screw seat corresponding to the screw rod. The first driver is located behind the fixed base, and the first driver and the top of the main shaft are each provided with a pulley connecting the belt.

3. The ball head fixed-torsion riveting forming machine as described in claim 2, characterized in that, The fixed base and the riveting base are equipped with detectors to detect and set the vertical movement limit positions of the riveting base.

4. The ball head fixed-torsion riveting forming machine as described in claim 1, characterized in that, The riveting base has a fixed column erected on it, the torque seat is set on the fixed column, the main shaft has a shaft hole that runs vertically through it, and the drive shaft and the connector pass through the shaft hole and the center of the riveting device.

5. The ball head fixed-torsion riveting forming machine as described in claim 4, characterized in that, The drive shaft includes a polygonal shaft and a sleeve. The sleeve has polygonal holes and slides up and down to fit the polygonal shaft. The top of the polygonal shaft is connected to the torque shaft, and the connector is connected to the bottom of the sleeve.

6. The ball head fixed-torsion riveting forming machine as described in claim 5, characterized in that, The bushing has a pin that radially passes through the connector, which connects and fixes the upward-extending ball joint.

7. The ball head fixed-torsion riveting forming machine as described in claim 6, characterized in that, The device further includes a calibration mechanism located behind the clamp. The calibration mechanism includes two pneumatic cylinders, which are respectively located on opposite sides of the calibration mechanism. Each pneumatic cylinder is connected to a clamp, and the two pneumatic cylinders drive the two clamps to clamp and guide the ball joint rod accordingly.

8. The ball head fixed-torsion riveting forming machine as described in claim 1, characterized in that, The platform has a fixed column at its bottom, the torque seat is located on the fixed column, and the drive shaft and the connector can extend upward into the center of the clamp.

9. The ball head fixed torsion riveting forming machine as described in claim 8, characterized in that, The drive shaft includes a polygonal shaft and a sleeve. The sleeve has polygonal holes and slides up and down to fit the polygonal shaft. The bottom end of the polygonal shaft is connected to the torque shaft. The connector is connected to the top end of the sleeve and is connected to the ball joint extending downward.

10. The ball head fixed-torsion riveting forming machine as described in claim 9, characterized in that, The torque seat is connected to the outer side of the sleeve by pneumatic cylinders.

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