Knuckle ball pin press-fitting device

Abstract

The utility model discloses a steering knuckle ball pin press-fitting device, which relates to the technical field of ball pin press-fitting and comprises a rack, a top plate is fixedly mounted at the top of the rack through upright posts, a platen is fixedly mounted at the lower end of the rack, and cross beams are fixedly mounted on two sides of the bottom of the top plate respectively. Backer seats are fixedly mounted in the middle positions of the bottoms of the two cross beams, and press-fitting mechanisms are arranged below the two ends of the two cross beams. According to the utility model, a plurality of parts and mechanisms are arranged, and the hydraulic cylinder, the pressure head, the jig floating mechanism, the feeding mechanism and other components are utilized to realize accurate press fitting of the ball pin. An operator can place, clamp and fix a workpiece through the control device, then the system can automatically complete the taking-out, positioning and mounting processes of a ball pin, errors and inconsistency possibly caused by manual operation are avoided, and therefore the production efficiency and the product quality are improved, manual intervention is reduced, and the production cost is reduced. And the possibility of human errors is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball pin press-fitting, in particular to a steering knuckle ball pin press-fitting device. Background Art

[0002] Steering knuckle ball pin press-fit device usually refers to the equipment used to connect the steering knuckle and the ball pin in the automobile steering system. This equipment is used to firmly press the ball pin into the tapered hole of the steering knuckle during the press-fit process to ensure that the ball pin and the steering knuckle can withstand various forces and torques generated by the car during driving. In the process of automobile manufacturing and maintenance, the correct press-fit force is crucial to ensure the rigidity of the steering knuckle and the reliability of the ball pin.

[0003] This device usually includes a press-fitting tool and corresponding auxiliary equipment, which can press the ball pin into the tapered hole of the steering knuckle according to the specified torque and sequence. The correct press-fitting process can ensure that there is appropriate friction between the mating surface of the ball pin and the steering knuckle, which is very important for the handling and safety of the car. During the press-fitting process, if the torque is too large or the sequence is incorrect, the ball pin may be damaged or inaccurately positioned, affecting the steering performance of the car.

[0004] In actual applications of existing steering knuckle ball pin press-fitting devices, the traditional steering knuckle ball pin press-fitting process requires multiple steps, and the operator needs to perform manual adjustments in a certain order and torque, which not only increases the labor intensity but is also prone to errors. During manual operation, it is difficult to accurately control the press-fitting force, which may cause the ball pin to be pressed into the steering knuckle at an inconsistent depth, thereby affecting the steering performance. At the same time, the steering knuckle ball pin needs to be manually adjusted by the operator during the press-fitting process. If an error occurs during the operation, the ball pin may be damaged or inaccurately positioned, thereby affecting the driving safety of the vehicle.

[0005] Therefore, it is necessary to invent a steering knuckle ball pin press-fitting device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a steering knuckle ball pin press-fitting device to solve the above-mentioned technical deficiencies.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steering knuckle ball pin press-fitting device, comprising a frame, a top plate is fixedly installed on the top of the frame through a column, a table plate is fixedly installed on the lower end of the frame, cross beams are fixedly installed on both sides of the bottom of the top plate, backrests are fixedly installed at the middle position of the bottom of the two cross beams, and press-fitting mechanisms are arranged below the two ends of the two cross beams;

[0008] The press-fitting mechanism comprises:

[0009] Four indenter heads are respectively arranged below the two ends of the bottom of each cross beam. A pressure sensor is fixedly installed at the tail end of each indenter head.

[0010] Four hydraulic cylinders are respectively arranged at the two ends of each cross beam. Each hydraulic cylinder is fixedly connected to the two ends of the bottom of the top plate through a connecting member. The position of each hydraulic cylinder corresponds to the position of each indenter head one by one, and the output end of each hydraulic cylinder corresponds to the tail end of each pressure sensor.

[0011] The backstop seat has a special-shaped structure. Through holes adapted to the ball pins are respectively opened on both sides of the lower end of the backstop seat. The installation directions of the two backstop seats are opposite. A fixture floating mechanism is arranged on the pedestal of the frame.

[0012] The fixture floating mechanism includes:

[0013] Two placing tables are respectively arranged below the two backstop seats. The installation positions of the two placing tables correspond to the two backstop seats, and the installation directions are opposite.

[0014] Two angle adjusters are respectively arranged at the bottoms of the two placing tables.

[0015] As a preferred solution of the present utility model, a sliding mechanism is arranged above the table board and at the corresponding position of the backstop seat. The sliding mechanism is composed of structures such as a guide rail, a lead screw and a slider. An elevating mechanism is arranged above the guide rail of the sliding mechanism.

[0016] As a preferred solution of the present utility model, the elevating mechanism is composed of structures such as an electric cylinder and a bracket. The bottom of the bracket of the elevating mechanism is slidably connected to the guide rail in the sliding mechanism through a slider. The two angle adjusters are installed at the top end of the bracket of the elevating mechanism.

[0017] As a preferred solution of the present utility model, a feeding mechanism including a sliding table is arranged above the table board and on both sides of the sliding mechanism. The sliding table is installed above the table board through a support member and on one side of the sliding mechanism. The front of the sliding table is installed with a lifting cylinder through a sliding component. The output end of the top end of the lifting cylinder is fixedly installed with a gripper.

[0018] As a preferred solution of the present utility model, a group of material bins are arranged on both sides of the back of the frame. A material extractor is arranged on the outer wall of one side of each group of material bins. The lower end of the material extractor corresponds to the position of the gripper. The discharge port of each material bin is located on one side of the corresponding material extractor.

[0019] As a preferred solution of the present utility model, displacement scales are horizontally and fixedly installed on both sides of the bottom of each cross beam and located on both sides of the backstop seat. The indenter head is slidably connected to the displacement scale through a sliding component.

[0020] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0021] 1. By setting multiple components and mechanisms, and using components such as hydraulic cylinders, pressing heads, fixture floating mechanisms, and feeding mechanisms, precise pressing of ball pins is achieved. Operators can place and clamp the workpiece through the control device, and then the system can automatically complete the processes of taking out, positioning, and installing the ball pins, avoiding errors and inconsistencies that may be caused by manual operations. Thereby, the production efficiency and product quality are improved, manual intervention is reduced, the production efficiency is increased, and the possibility of human errors is decreased;

[0022] 2. Compared with the traditional process of pressing ball pins on steering knuckles, which requires multiple steps and operators need to make manual adjustments in a certain order and torque. This new device realizes automated operation, greatly reducing the operation steps and time, improving the production efficiency. And through real-time monitoring of the pressing process by pressure sensors, it ensures that the depth of the ball pin pressed into the steering knuckle is consistent, improving the steering performance. At the same time, the fixture floating mechanism and angle adjuster keep the workpiece stable during the installation process, improving the installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is the general assembly drawing of the overall structure of the present utility model;

[0025] Figure 2 It is the first perspective assembly drawing of the overall mechanism of the present utility model;

[0026] Figure 3 It is the second perspective assembly drawing of the overall structure of the present utility model;

[0027] Figure 4 It is the three-dimensional drawing of the fixture floating mechanism and the feeding mechanism of the present utility model;

[0028] Figure 5 It is the first perspective three-dimensional drawing of the pressing mechanism of the present utility model;

[0029] Figure 6 It is the second perspective drawing of the pressing mechanism of the present utility model.

[0030] Description of the reference numerals:

[0031] 1. Frame; 11. Top plate; 12. Table board; 13. Cross beam; 14. Backing seat; 15. Displacement scale;

[0032] 2. Pressing mechanism; 21. Pressing head; 22. Pressure sensor; 23. Hydraulic cylinder;

[0033] 3. Fixture floating mechanism; 31. Placing table; 32. Angle adjuster;

[0034] 4. Sliding mechanism; 41. Guide rail; 42. Lead screw; 43. Slide block;

[0035] 5. Lifting mechanism; 51. Electric cylinder; 52. Bracket;

[0036] 6. Loading mechanism; 61. Slide table; 62. Lifting cylinder; 63. Gripper;

[0037] 7. Magazine; 71. Feeder. Detailed implementation mode

[0038] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the following will further introduce the present utility model in detail with reference to the accompanying drawings.

[0039] The present utility model provides a Figures 1-5 steering knuckle ball pin pressing device as shown in the figure, including a frame 1. The top of the frame 1 is fixedly installed with a top plate 11 through columns, the lower end of the frame 1 is fixedly installed with a table board 12, both sides of the bottom of the top plate 11 are respectively fixedly installed with cross beams 13, backing seats 14 are fixedly installed at the middle positions of the bottoms of the two cross beams 13, and pressing mechanisms 2 are arranged below both ends of the two cross beams 13;

[0040] In this example, the top plate 11 serves as a connecting component and a supporting component for various component structures above the device, and thus can realize the installation of the cross beam 13, the pressing mechanism 2, and the control component. Moreover, the cross beam 13 serves as a limiting component for the workpiece to prevent the workpiece from shifting during the process of pressing the steering knuckle ball pin.

[0041] The pressing mechanism 2 includes:

[0042] Pressing heads 21, with four in number, are respectively arranged below both ends of the bottom of each cross beam 13, and a pressure sensor 22 is fixedly installed at the tail end of each pressing head 21;

[0043] Hydraulic cylinders 23, with four in number, are respectively arranged at both ends of each cross beam 13. Each hydraulic cylinder 23 is fixedly connected to both ends of the bottom of the top plate 11 through a connecting piece. The position of each hydraulic cylinder 23 corresponds to the position of each pressing head 21 one by one, and the output end of each hydraulic cylinder 23 corresponds to the tail end of each pressure sensor 22.

[0044] The backrest base 14 has a special-shaped structure. Through holes adapted to the ball pins are provided on both sides of the lower end of the backrest base 14. The installation directions of the two backrest bases 14 are opposite. A jig floating mechanism 3 is provided on the pedestal of the frame 1.

[0045] In this embodiment, the steering knuckle ball pin is pressed into the workpiece by the press head 21. Since the press head 21 itself does not have a stamping function, a hydraulic cylinder 23 is installed at the lower end of the cross beam 13. The stamping of the steering knuckle ball pin by the press head 21 is realized through the hydraulic cylinder 23. At the same time, in order to prevent the hydraulic cylinder 23 from applying too much or too little force during the process of driving the press head 21 and affecting the stamping effect of the press head 21, a pressure sensor 22 is installed at the tail end of the press head 21. The pressure sensor 22 is used to sense the magnitude of the pressure applied by the hydraulic cylinder 23, and then accurately control the magnitude of the pressure of the press head 21 on the workpiece for stamping the steering knuckle ball pin, so as to ensure the production quality.

[0046] The jig floating mechanism 3 includes:

[0047] Two placement platforms 31, which are respectively arranged below the two backrest bases 14. The installation positions of the two placement platforms 31 correspond to the two backrest bases 14, and the installation directions are opposite;

[0048] Two angle adjusters 32, which are respectively arranged at the bottoms of the two placement platforms 31.

[0049] In this embodiment, the jig floating mechanism 3 is used to support and position the workpiece that needs to install the steering knuckle ball pin. Thus, the workpiece is placed on the placement platform 31, and then the extrusion assembly on the placement platform 31 is used to fix the workpiece on the placement platform 31. Since the workpiece has a special-shaped structure, the angle adjuster 32 in the jig floating mechanism 3 controls the placement platform 31 to drive the workpiece to be adjusted within a certain angle range, so that the steering knuckle ball pin holes on both sides of the workpiece can correspond to the holes below the cross beam 13, and then it is convenient for the press head 21 to accurately punch the steering knuckle ball pin into the installation positions on both sides of the workpiece subsequently.

[0050] Furthermore, in the above technical solution, above the platen 12 and at the corresponding position of the backrest base 14, a sliding mechanism 4 is provided. The sliding mechanism 4 is composed of structures such as a guide rail 41, a lead screw 42, and a slider 43. An elevating mechanism 5 is arranged above the guide rail 41 of the sliding mechanism 4.

[0051] In this example, the fixture floating mechanism 3 is installed on the lifting mechanism 5, and the lifting mechanism 5 is installed on the slider 43. The threaded seat on the lead screw 42 is fixedly connected to the bottom support plate of the fixture floating mechanism 3. Thus, when the lead screw 42 controls the threaded seat to move back and forth, the fixture floating mechanism 3 and the lifting mechanism 5 move reciprocally on the guide rail 41 following the threaded seat. After the workpiece is placed on the placement table 31 of the fixture floating mechanism 3, the sliding mechanism 4 drives the workpiece on the fixture floating mechanism 3 to move below the cross beam 13, and aligns the workpiece on the placement table 31 with the backing seat 14, facilitating the subsequent sleeving of the workpiece onto the outer part of the lower end of the backing seat 14.

[0052] Furthermore, in the above technical solution, the lifting mechanism 5 is composed of structures such as an electric cylinder 51 and a bracket 52. The bottom of the bracket 52 of the lifting mechanism 5 is slidably connected to the guide rail 41 in the sliding mechanism 4 through the slider 43, and two angle adjusters 32 are installed at the top of the bracket 52 of the lifting mechanism 5.

[0053] In this example, the fixture floating mechanism 3 is installed at the top of the lifting mechanism 5. Since the workpiece on the placement table 31 needs to be sleeved against the lower end of the backing seat 14, and the function of the fixture floating mechanism 3 cannot achieve the sleeving of the workpiece on the lower end of the backing seat 14, the lifting mechanism 5 is used to drive the overall lifting of the fixture floating mechanism 3. The electric cylinder 51 in the lifting mechanism 5 jacks up the fixture floating mechanism 3, so that the workpiece rises to the lower end of the backing seat 14, and under the action of the electric cylinder 51, the fixture floating mechanism 3 and the workpiece are abutted against the bottom of the backing seat 14 to prevent the workpiece from falling, improving the stability of the subsequent press-fitting of the steering knuckle ball pin.

[0054] Furthermore, feeding mechanisms 6 are arranged on both sides of the sliding mechanism 4, including a slide table 61. The slide table 61 is installed above the table board 12 through a support member and is located on one side of the sliding mechanism 4. The front of the slide table 61 is installed with a lifting cylinder 62 through a sliding component, and the output end at the top of the lifting cylinder 62 is fixedly installed with a gripper 63.

[0055] In this example, since two placement tables 31 are installed on the fixture floating mechanism 3, two workpieces can be placed. There is only one set of grippers 63 in the feeding mechanism 6, and one set of grippers 63 can only install steering knuckle ball pins on both sides of one workpiece. Thus, the slide table 61 in the feeding mechanism 6 controls the synchronous movement of the lifting cylinder 62 and the gripper 63. Then, under the control of the slide table 61, one set of grippers 63 takes materials through multiple displacements and alternately clamps and places the steering knuckle ball pins at the corresponding positions on the outer sides of the two workpieces.

[0056] Further, in the above technical solution, a set of bins 7 are arranged on both sides of the back surface of the frame 1. A material picker 71 is arranged on the outer wall of one side of each set of bins 7. The lower end of the material picker 71 corresponds to the position of the gripper 63. The discharge port of each bin 7 is located on one side of the corresponding material picker 71.

[0057] In this embodiment, the steering knuckle ball pins are conveyed to the discharge ports of the bins 7 through the bins 7, and then the material picker 71 grabs the steering knuckle ball pins at the discharge ports of the bins 7. Then, the slide table 61 in the feeding mechanism 6 controls the lifting cylinder 62 and the gripper 63 to move. Further, the lifting cylinder 62 controls the gripper 63 to remove the steering knuckle ball pins from the material picker 71. Under the control of the slide table 61 and the lifting cylinder 62, the gripper 63 places the steering knuckle ball pins on both sides of the workpiece.

[0058] Further, in the above technical solution, displacement scales 15 are horizontally and fixedly installed at the bottom of each cross beam 13 and on both sides of the backing seat 14. The pressure head 21 is slidably connected to the displacement scale 15 through a sliding assembly. Further, the pressure head 21 can be connected to the displacement scale 15, realizing the connection of the pressure head 21. Thus, when the pressure head 21 moves below the cross beam 13, the stability of the pressure head 21 during the stamping process of the steering knuckle ball pins is maintained.

[0059] When the steering knuckle ball pin pressing device provided by the present utility model is in use, its working process is as follows:

[0060] The sliding mechanism 4 controls the lifting mechanism 5 and the fixture floating mechanism 3 to move to the front of the frame 1. Then, the operator places two workpieces on the two placement tables 31 of the fixture floating mechanism 3, and clamps and fixes the two workpieces through the clamping device on the placement tables 31. The angles of the two placement tables 31 are adjusted through the angle adjuster 32, that is, the angles of the two workpieces are synchronously adjusted. Then, the sliding mechanism 4 controls the fixture floating mechanism 3 and the lifting mechanism 5 to drive the two workpieces to move to the corresponding positions below the two backing seats 14 of the two cross beams 13. Then, the lifting mechanism 5 controls the fixture floating mechanism 3 to lift up, and the two workpieces on the placement tables 31 are abutted and sleeved below the two backing seats 14, and the lifting mechanism 5 keeps the position stable and immovable.

[0061] Subsequently, the feeder 71 takes out the ball pin at the discharge port of the bin 7. Then, the slide table 61 in the feeding mechanism 6 controls the lifting cylinder 62 and the gripper 63 to move below the feeder 71. Then, the lifting cylinder 62 controls the gripper 63 to rise, taking off the ball pin on the feeder 71. Subsequently, the lifting cylinder 62 controls the gripper 63 with the ball pin to descend. The slide table 61 controls the gripper 63 to move to the corresponding positions on both sides of the fixture floating mechanism 3 again. The lifting cylinder 62 controls the gripper 63 to rise to the outside of a workpiece again. Finally, the pressing mechanism 2 is activated, and the output end of the hydraulic cylinder 23 pushes the tail end of the pressing head 21, so that the ball pin clamped by the gripper 63 is pressed by the pressing head 21 to the outer mounting position of the workpiece, thus completing the installation of the ball pin of a workpiece steering knuckle. Subsequently, each mechanism in the pressing mechanism 2 resets, and the feeding mechanism 6 also resets. The gripper 63 takes materials again and repeats the action, moving to the outside of both sides of another workpiece to install the ball pin of the next workpiece.

[0062] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steering knuckle ball pin press-fitting device, comprising a frame (1), characterized in that: A top plate (11) is fixedly mounted on the top of the frame (1) via a column, a table plate (12) is fixedly mounted on the lower end of the frame (1), cross beams (13) are fixedly mounted on both sides of the bottom of the top plate (11), a backrest (14) is fixedly mounted at the middle position of the bottom of the two cross beams (13), and a pressing mechanism (2) is provided below both ends of the two cross beams (13); The press-fitting mechanism (2) comprises: There are four pressure heads (21) which are respectively arranged below the two ends of the bottom of each of the cross beams (13), and a pressure sensor (22) is fixedly mounted at the tail end of each of the pressure heads (21); There are four hydraulic cylinders (23), which are respectively arranged at the two ends of each cross beam (13); each hydraulic cylinder (23) is fixedly connected to the two ends of the bottom of the top plate (11) through a connecting piece; the position of each hydraulic cylinder (23) corresponds to the position of each pressure head (21); and the output end of each hydraulic cylinder (23) corresponds to the tail end of each pressure sensor (22); The backrest seat (14) is a special-shaped structure, and through holes adapted to the ball pin are provided on both sides of the lower end of the backrest seat (14). The installation directions of the two backrest seats (14) are opposite, and a fixture floating mechanism (3) is provided on the base of the frame (1); The fixture floating mechanism (3) comprises: Two placement platforms (31) are respectively arranged below the two backrest seats (14); the installation positions of the two placement platforms (31) correspond to the two backrest seats (14), and the installation directions are opposite; Two angle adjusters (32) are respectively arranged at the bottom of the two placement platforms (31).

2. A steering knuckle ball pin press-fitting device according to claim 1, characterized in that: A sliding mechanism (4) is arranged above the platform (12) and at a position corresponding to the backrest (14); the sliding mechanism (4) is composed of a guide rail (41), a screw rod (42) and a slider (43); a lifting mechanism (5) is arranged above the guide rail (41) of the sliding mechanism (4).

3. A steering knuckle ball pin press-fitting device according to claim 2, characterized in that: The lifting mechanism (5) is composed of an electric cylinder (51) and a bracket (52); the bottom of the bracket (52) of the lifting mechanism (5) is slidably connected to the guide rail (41) in the sliding mechanism (4) via a slider (43); and the two angle adjusters (32) are installed on the top of the bracket (52) of the lifting mechanism (5).

4. A steering knuckle ball pin press-fitting device according to claim 2, characterized in that: A feeding mechanism (6) including a slide (61) is provided on both sides of the sliding mechanism (4). The slide (61) is installed above the table (12) through a support member and is located on one side of the sliding mechanism (4). A lifting cylinder (62) is installed on the front side of the slide (61) through a sliding component. A clamp (63) is fixedly installed at the output end of the top of the lifting cylinder (62).

5. A steering knuckle ball pin press-fitting device according to claim 4, characterized in that: A group of silos (7) are provided on both sides of the back of the frame (1), and a material picker (71) is provided on the outer wall of one side of each group of silos (7), the lower end of the material picker (71) corresponds to the position of the clamp (63), and the discharge port of each silo (7) is located on one side of the corresponding position of the material picker (71).

6. A steering knuckle ball pin press-fitting device according to claim 1, characterized in that: A displacement ruler (15) is horizontally fixedly installed at the bottom of each crossbeam (13) and on both sides of the backrest seat (14), and the pressure head (21) is slidably connected to the displacement ruler (15) via a sliding assembly.

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