Press-fit device of thrust rod ball pin and thrust rod

Abstract

The invention relates to the technical field of thrust rod ball pin press-fit, in particular to a thrust rod ball pin press-fit device and a thrust rod, the thrust rod ball pin press-fit device comprises a bottom box and a workbench fixedly connected to the bottom box, a punching machine is mounted at the top of the workbench, a placement seat is fixedly connected to the top of the workbench, a guide seat is fixedly connected to the top of the workbench, and an electric sliding rail is slidably mounted on the guide seat. After a thrust rod is placed, an electric rotating rod is started to drive a straight gear to rotate reversely, the straight gear drives an annular disc to rotate forwards through an outer gear ring, the annular disc drives three contact rods to move in the direction close to one another through inclined holes, and the contact rods drive three positioning frames to move in the direction close to one another through L-shaped plates and connecting springs; the three positioning frames center and position the ball seats of the thrust rods, under the action of the connecting springs, the positioning frames can center and position the ball seats of the thrust rods of different sizes to complete press-fit, manual correction and replacement positioning work are not needed, the operation continuity is high, convenience is achieved, and therefore the press-fit efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of thrust rod ball pin press-fitting, in particular to a thrust rod ball pin press-fitting device and a thrust rod. Background Art

[0002] The thrust rod is a guiding rod assembly that connects the frame and the axle (axle) of a heavy-duty commercial vehicle suspension. During the assembly process of the thrust rod, the ball pin needs to be press-fitted onto the thrust rod to complete the assembly. As an important component of the thrust rod, the connection quality and performance of the ball pin directly affect the overall performance of the suspension system.

[0003] The Chinese utility model patent with announcement number CN222003315U discloses a heavy-duty commercial vehicle balanced suspension thrust rod ball pin assembly tool, including: a base, a measuring table, and an angle measuring plate. The base is provided with a vertically downward V-shaped opening, the measuring table is connected to the side wall of the base along the axial length of the thrust rod, and the angle measuring plate is connected to the angle measuring plate at the pin shaft at one end of the measuring table away from the base, and the measuring end of the angle measuring plate can be rotatably extended out of the outer edge of the measuring table; the rotation axis at the angle measuring plate pin shaft connection, the symmetry surface of the V-shaped opening, and the rotation axis of the thrust rod are located in the same plane, and a locking bolt is provided at the angle measuring plate pin shaft connected to the measuring table. Although the above patent can press fit the ball pin after positioning, it is necessary to center the thrust rod ball seat and the pressing block of the stamping machine before press fitting to prevent deviation in press fitting. Due to the different sizes of the thrust rod ball seat, manual calibration or replacement of the positioning tool is required for positioning each time. This operation is more troublesome, the operation continuity is not strong, and the efficiency of press fitting is affected.

[0004] The present invention aims to solve the problems existing in the above patents. To this end, a thrust rod ball pin press-fitting device and a thrust rod are proposed, which can complete the press-fitting of thrust rod ball seats of different sizes after centering, have strong operation continuity, are relatively convenient, and improve the press-fitting efficiency. Summary of the invention

[0005] In order to overcome the deficiencies in the prior art, the present invention provides a press-fit device for a thrust rod ball pin.

[0006] To achieve the above-mentioned purpose, the present invention discloses a press-fit device for a thrust rod ball pin, comprising a bottom box and a workbench fixedly connected to the bottom box, a punching machine is installed on the top of the workbench, a placement seat is fixedly connected to the top of the workbench, a guide seat is fixedly connected to the top of the workbench, an electric slide rail is slidably installed on the guide seat, a limiting frame located above the placement seat is fixedly connected to the moving part of the electric slide rail, an electric lead screw threadedly connected to the electric slide rail is installed on the guide seat, and also comprises an angle measuring component, an annular plate, a driving component, a contact rod, a guide frame, an L-shaped plate, a connecting spring, a positioning frame and a testing component, wherein the angle measuring component is installed on the limiting frame and is used to measure the angle of the ball pin, and the top of the workbench is fixedly connected to the A ring plate is connected to the bottom of the punching machine, a guide frame is fixedly connected to the inner side of the ring plate at uniform intervals along the circumferential direction, a positioning frame is slidably mounted on the guide frame, an L-shaped plate is slidably mounted on the guide frame, a connecting spring mounted on the guide frame is connected between the L-shaped plate and the guide frame, a contact rod is fixedly connected to the L-shaped plate, a driving assembly is arranged between the workbench and the ring plate, the driving assembly is used to drive the contact rod to move, the contact rod drives the L-shaped plate to move, the L-shaped plate drives the three positioning frames to move towards each other through the connecting spring, so that the three positioning frames can center the ball seats of thrust rods of different sizes, and a testing assembly is arranged between the placement seat and the workbench, which is used to drive the ball pin to rotate for testing.

[0007] To further explain, the angle measuring assembly includes a fixed plate fixedly connected to the limit frame, a rotating shaft is rotatably connected to the fixed plate, a measuring plate is fixedly mounted on the rotating shaft to measure the angle of the ball pin, a worm gear is fixedly mounted on the rotating shaft, and a worm gear meshing with the worm gear is rotatably connected to the fixed plate.

[0008] To further explain, the driving assembly includes an annular disk rotatably connected to the top circumference of the annular plate, the annular disk is provided with inclined holes evenly spaced along the circumference, the inclined holes are slidably connected to the contact rod, an outer gear ring is fixedly mounted on the outer side surface of the annular disk along the circumference, an electric rotating rod is installed on the top of the workbench and is located on the rear side of the annular plate, and a spur gear meshing with the outer gear ring is fixedly mounted on the electric rotating rod.

[0009] Further explanation, the test assembly includes a guide rod symmetrically fixed to the outer side of the placement seat, the guide rod passes through the annular plate, a push rod is slidably mounted on the guide rod, the push rod slidably passes through the placement seat, a rack is fixed to the push rod, a guide gear is rotatably connected to the top of the workbench, the guide gear is located between the push rods, the guide gear is meshed with the rack, a cylinder is installed on the placement seat, and the end of the telescopic rod of the cylinder is fixedly connected to one of the ends of the push rods.

[0010] Further explanation, the press-fit device of the thrust rod ball pin also includes an indicating assembly, which includes a vertical rod rotatably connected to the fixed plate, a dial rotatably mounted on the vertical rod, the dial is fixedly connected to the fixed plate, an indicating rod is fixedly mounted on the vertical rod and is parallel to the measuring plate, for indicating the angle of the measuring plate, and a belt assembly is connected between the vertical rod and the rotating shaft.

[0011] Further explanation, the press-fitting device of the thrust rod ball pin also includes a positioning assembly, the positioning assembly includes a mounting plate fixedly connected to the punching machine, a fixing rod fixedly connected to the mounting plate, an arc-shaped positioning plate slidably mounted on the fixing rod for positioning the ball pin, a bidirectional screw is rotatably connected to the mounting plate, the threads on the front and rear sides of the bidirectional screw are opposite, and the bidirectional screw is threadedly connected to the arc-shaped positioning plate.

[0012] As a further explanation, the press-fit device of the thrust rod ball pin also includes a protection pad fixed to the inner side of the arc-shaped positioning plate to protect the arc-shaped positioning plate.

[0013] A thrust rod is prepared by the above-mentioned thrust rod ball pin press-fit device. The present invention has the following technical effects: 1. Whenever the thrust rod is placed, start the electric rotating rod to drive the spur gear to reverse, the spur gear drives the annular disk to rotate forward through the outer gear ring, the annular disk drives the three contact rods to move towards each other through the oblique hole, the contact rod drives the three positioning frames to move towards each other through the L-shaped plate and the connecting spring, the three positioning frames center the ball seat of the thrust rod, and under the action of the connecting spring, the positioning frame can center the ball seat of thrust rods of different sizes to complete the press fitting, without manual proofreading and replacement of positioning work, the operation is highly continuous and convenient, thereby improving the press fitting efficiency.

[0014] 2. Under the action of the push rod, whenever the ball pin is pressed into the ball seat of the thrust rod, the push rod can drive the ball pin to rotate for flexibility test to prevent the pressed ball pin from getting stuck and affecting the subsequent use of the thrust rod, thereby ensuring the subsequent normal use of the thrust rod.

[0015] 3. Under the action of the dial and the indicator rod, whenever the operator twists the worm to rotate the measuring plate, the rotating shaft drives the vertical rod to rotate through the belt assembly, and the vertical rod drives the indicator rod to rotate. The indicator rod indicates the rotation angle of the measuring plate through the dial, which allows the operator to understand the angle of the measuring plate more clearly, thereby improving the efficiency of angle adjustment. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the placement seat and the limiting frame of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the angle measurement component of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the driving assembly of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the positioning frame of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the test assembly of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the indicator assembly of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the belt assembly of the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the positioning assembly of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the protection pad of the present invention. In the figure, 1, bottom box; 2, workbench; 201, thrust rod; 3, punching machine; 4, placement seat; 5, guide seat; 6, electric screw; 7, electric slide rail; 8, limit frame; 9, fixed plate; 91, rotating shaft; 92, measuring plate; 93, worm gear; 94, worm; 10, annular plate; 11, annular disk; 111, oblique hole; 112, electric rotating rod; 113, spur gear; 114, outer gear ring; 12, Contact rod; 13. Guide frame; 14. L-shaped plate; 15. Connecting spring; 16. Positioning frame; 17. Guide rod; 171. Push rod; 1711. Rack; 172. Guide gear; 173. Cylinder; 18. Vertical rod; 181. Dial; 182. Indicator rod; 183. Belt assembly; 19. Mounting plate; 191. Fixing rod; 192. Arc positioning plate; 193. Bidirectional screw; 20. Protective pad. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1 To Attachment Fig.10 The principles and features of the present invention are described in detail with reference to the accompanying drawings and embodiments; the examples are only used to explain the present invention; they are not used to limit the scope of the present invention. A press-fit device for a thrust rod ball pin comprises a bottom box 1 and a workbench 2 fixedly connected to the outer top of the bottom box 1, a punching machine 3 is installed on the left rear side of the top of the workbench 2, a placement seat 4 is fixedly connected to the front side of the top of the workbench 2, and the placement seat 4 can place the thrust rod 201, a guide seat 5 is fixedly connected to the middle of the top of the workbench 2, an electric slide rail 7 is slidably installed on the guide seat 5, a limit frame 8 is fixedly connected to the moving part of the electric slide rail 7, and a V-shaped groove is symmetrically opened at the bottom of the limit frame 8. The limit frame 8 is located above the placement seat 4, and an electric screw 6 is installed on the right side of the guide seat 5. The electric screw 6 is threadedly connected to the electric slide rail 7. It also comprises an angle measuring component, an annular plate 10, a driving component, a contact rod 12, a guide frame 13, an L-shaped plate 14, a connecting spring 15, a positioning frame 16 and a testing component. The angle measuring component is installed on the limit frame 8. When the angle measuring component is in operation, the angle measuring component can measure the angle of the ball pin. An annular plate 10 is connected, and the annular plate 10 is located directly below the punching machine 3. Three guide frames 13 are fixedly connected to the inner upper part of the annular plate 10 at uniform intervals along the circumferential direction. Positioning frames 16 are slidably mounted on the three guide frames 13. L-shaped plates 14 are slidably mounted on the three guide frames 13. A connecting spring 15 is connected between the inner side surface of the L-shaped plate 14 and the outer side surface of the guide frame 13. The connecting spring 15 is sleeved on the guide frame 13. A contact rod 12 is fixedly connected to the outer top of the L-shaped plate 14. A driving assembly is arranged between the workbench 2 and the annular plate 10. The driving assembly is used to drive the contact rod 12 to move, and the contact rod 12 drives the L-shaped plate 14 to move. The L-shaped plate 14 drives the three positioning frames 16 to move in a direction close to each other through the connecting spring 15, so that the three positioning frames 16 can center the ball seats of thrust rods 201 of different sizes. A test assembly is arranged between the placement seat 4 and the workbench 2. When the test assembly is in operation, the test assembly can drive the ball pin to rotate for testing.

[0017] The angle measuring assembly includes a fixed plate 9, a rotating shaft 91, a measuring plate 92, a worm wheel 93 and a worm 94. The fixed plate 9 is fixedly connected to the upper part of the left side surface of the limiting frame 8. The rotating shaft 91 is rotatably connected to the left side of the fixed plate 9. The measuring plate 92 is fixedly sleeved on the middle part of the rotating shaft 91. When the measuring plate 92 contacts the ball pin, the measuring plate 92 can measure the angle of the ball pin. The worm wheel 93 is fixedly sleeved on the upper part of the rotating shaft 91. The worm 94 is rotatably connected to the left side of the fixed plate 9, and the worm 94 is meshed with the worm wheel 93.

[0018] The driving assembly includes an annular disk 11, an electric rotating rod 112, a spur gear 113 and an outer gear ring 114. The annular disk 11 is connected to the top of the annular plate 10 in a circumferentially rotatable manner. Three inclined holes 111 are evenly spaced along the circumference on the annular disk 11. The three inclined holes 111 are slidably connected to the three contact rods 12. The outer side surface of the annular disk 11 is fixedly sleeved with an outer gear ring 114 along the circumferential direction. An electric rotating rod 112 is installed on the left rear side of the top of the workbench 2. The electric rotating rod 112 is located on the rear side of the annular plate 10. A spur gear 113 is fixedly sleeved on the upper part of the electric rotating rod 112, and the spur gear 113 is meshed with the outer gear ring 114.

[0019] The test assembly includes a guide rod 17, a push rod 171, a rack 1711, a guide gear 172 and a cylinder 173. The guide rod 17 is symmetrically fixed to the lower part of the outer left side of the placement seat 4. The front and rear guide rods 17 penetrate the annular plate 10. Push rods 171 are slidably mounted on the front and rear guide rods 17. The push rods 171 slide through the left side of the placement seat 4. A rack 1711 is fixed to the right part of the side where the front and rear push rods 171 are close to each other. A guide gear 172 is rotatably connected to the left front side of the top of the workbench 2. The guide gear 172 is located between the front and rear push rods 171. The guide gear 172 is meshed with the front and rear racks 1711. A cylinder 173 is installed on the right side of the placement seat 4. The telescopic rod end of the cylinder 173 is fixedly connected to the right end of the rear push rod 171.

[0020] First, place the thrust rod 201 horizontally on the placement seat 4, and make the ball seat at one end of the thrust rod 201 be inside the annular disk 11, start the electric screw 6 to reverse and drive the electric slide rail 7 to move downward, the electric slide rail 7 drives the limit frame 8 to move downward, the limit frame 8 drives the fixed plate 9 to move downward, the fixed plate 9 drives the measuring plate 92 to move downward through the rotating shaft 91, when the limit frame 8 moves downward and contacts the thrust rod 201, close the electric screw 6, the limit frame 8 stops moving downward, the limit frame 8 limits the top of the thrust rod 201, due to the V-groove setting at the bottom of the limit frame 8, thrust rods 201 of different sizes can be limited, then start the electric rotating rod 112 to reverse, the electric rotating rod 112 reverses and drives the spur gear 113 to reverse, the spur gear 113 reverses with The outer gear ring 114 rotates forward, and the outer gear ring 114 rotates forward to drive the annular disk 11 to rotate forward, and the annular disk 11 rotates forward to drive the inclined hole 111 to rotate forward, and the inclined hole 111 rotates forward to drive the three contact rods 12 to move in the direction of approaching each other, and the contact rod 12 drives the three L-shaped plates 14 to move in the direction of approaching each other, and the L-shaped plate 14 drives the three positioning frames 16 to move in the direction of approaching each other through the connecting spring 15, and the three positioning frames 16 move to contact the ball seat of the thrust rod 201, and the three positioning frames 16 also push the ball seat of the thrust rod 201 to be centered, so that the ball seat of the thrust rod 201 corresponds to the punching head of the punching machine 3 to complete the centering operation, and the positioning frame 16 stops moving, and the L-shaped plate 14 continues to move to compress the connecting spring 15. The spring 15 enables the positioning frame 16 to center the ball seats of thrust rods 201 of different sizes to complete the press-fitting, without the need for manual calibration and replacement of positioning work, with strong continuity of operation and convenience, thereby improving the press-fitting efficiency. The electric rotating rod 112 is turned off, the spur gear 113 stops driving the outer gear ring 114 to rotate forward, and the contact rod 12 also stops driving the L-shaped plate 14 to move. Then the ball pin is placed on the ball seat of the thrust rod 201, and the ball pin corresponds to the measuring plate 92. The worm 94 is twisted to rotate, and the rotation of the worm 94 drives the worm wheel 93 to rotate. The worm wheel 93 drives the rotating shaft 91 to rotate, and the rotating shaft 91 drives the measuring plate 92 to rotate. When the measuring plate 92 rotates to the angle of the ball pin press-fitting, the worm 94 is stopped from being twisted, and the measuring plate 92 stops rotating. The self-locking function of the worm 94 and the worm wheel 93 can lock the rotating shaft 91, thus completing the locking of the measuring plate 92. The electric slide rail 7 is started to drive the limit frame 8 to move to the left, and the limit frame 8 drives the fixed plate 9 to move to the left. The fixed plate 9 drives the measuring plate 92 to move to the left through the rotating shaft 91. When the measuring plate 92 moves to the left and contacts the end face of the ball pin, the measuring plate 92 pushes the ball pin to rotate to the press-fit angle. The electric slide rail 7 is started to drive the limit frame 8 to move right and reset. The limit frame 8 resets and drives the measuring plate 92 to move right and reset through the fixed plate 9 and the rotating shaft 91. The measuring plate 92 resets and disengages from the ball pin, and the punching machine 3 can be started. The punching head of the punching machine 3 moves downward and contacts the ball pin. The punching head of the punching machine 3 moves downward and pushes the ball pin to move downward.The ball pin is moved downward and pressed into the ball seat of the thrust rod 201 for press fitting. Since the limit frame 8 limits the top of the thrust rod 201, it can prevent the thrust rod 201 from tilting up and affecting the press fitting of the ball pin. When the ball pin is press fitted, the bottom end of the ball pin is between the front and rear push rods 171. The punching machine 3 is started to move upward and reset. The punching head of the punching machine 3 is out of contact with the ball pin, and the cylinder 173 is started again. The telescopic rod of the cylinder 173 extends to drive the rear push rod 171 to move leftward. The rear push rod 171 moves leftward to drive the rear rack 1711 to move leftward. The rear rack 1711 drives the guide gear 172 Reverse, the guide gear 172 reverses and drives the front rack 1711 to move right, the front rack 1711 moves right and drives the front push rod 171 to move right, the front push rod 171 moves right and the rear push rod 171 moves left, driving the press-fitted ball pin to rotate, when the rack 1711 moves to the left to the maximum stroke, the start cylinder 173 drives the rear push rod 171 to move right and reset, which also makes the front push rod 171 move left and reset, and the front and rear push rods 171 reset and drive the ball pin to rotate again, and so on and so forth, the ball pin can be rotated continuously, and the press-fitted ball pin can be flexibly adjusted. The test is performed to prevent the press-fitted ball pin from getting stuck and affecting the subsequent use of the thrust rod 201, thereby ensuring the subsequent normal use of the thrust rod 201. When the ball pin flexibility test is completed, the cylinder 173 is closed, and the front and rear push rods 171 are in place, and then the electric rotating rod 112 is started to rotate forward to drive the spur gear 113 to rotate forward, and the spur gear 113 stops and drives the outer gear ring 114 to reverse, and the outer gear ring 114 drives the three contact rods 12 to move away from each other through the inclined hole 111 to reset, and the contact rod 12 drives the three L-shaped plates 14 to move away from each other to reset, and the L-shaped plates 14 first resets the compressed connection spring 15, and then the L-shaped plate 14 drives the three positioning frames 16 to move away from each other through the connection spring 15. The three positioning frames 16 reset and disengage from the ball seat of the thrust rod 201. The electric rotating rod 112 is turned off, and the electric screw 6 is started to rotate forward to drive the electric slide rail 7 to move upward and reset. The electric slide rail 7 drives the limit frame 8 to move upward and reset. The limit frame 8 resets and disengages from the thrust rod 201. The electric screw 6 is turned off, and the thrust rod 201 with the ball pin pressed can be removed from the placement seat 4. According to the above operation, the ball pin can be pressed on the other end.

[0021] The press-fit device of the thrust rod ball pin also includes an indicating assembly installed between the fixed plate 9 and the rotating shaft 91, and the indicating assembly includes a vertical rod 18, a dial 181, an indicating rod 182 and a belt assembly 183. The fixed plate 9 is rotatably connected with the vertical rod 18 on the right side, and the middle part of the vertical rod 18 is rotatably fitted with a dial 181, and the dial 181 is fixedly connected to the fixed plate 9. The upper part of the vertical rod 18 is fixedly fitted with an indicating rod 182, and the indicating rod 182 is in a parallel state with the measuring plate 92. When the indicating rod 182 rotates, the indicating rod 182 can indicate the angle of the measuring plate 92. A belt assembly 183 is connected between the lower part of the vertical rod 18 and the lower part of the rotating shaft 91. The belt assembly 183 consists of two pulleys and a flat belt, one of which is fixedly fitted on the lower part of the vertical rod 18, and the other is fixedly fitted on the lower part of the rotating shaft 91, and the flat belt is wound between the two pulleys.

[0022] The press-fitting device of the thrust rod ball pin also includes a positioning assembly installed on the punching machine 3, the positioning assembly includes a mounting plate 19, a fixing rod 191, an arc-shaped positioning plate 192 and a bidirectional screw 193. The mounting plate 19 is fixedly connected to the lower front side of the punching machine 3, and the fixing rod 191 is fixedly connected to the left side of the front side of the mounting plate 19. Two arc-shaped positioning plates 192 are slidably mounted on the fixing rod 191. When the arc-shaped positioning plate 192 moves and contacts the ball pin, the arc-shaped positioning plate 192 can position the ball pin. The right side of the front side of the mounting plate 19 is rotatably connected to a bidirectional screw 193. The threads on the front and rear sides of the bidirectional screw 193 are opposite, and the bidirectional screw 193 is threadedly connected to the arc-shaped positioning plates 192 on the front and rear sides.

[0023] When the ball pin is placed on the ball seat of the thrust rod 201, the worm 94 is twisted to rotate and drive the worm wheel 93 to rotate, so that the rotating shaft 91 drives the measuring plate 92 to rotate, and the rotating shaft 91 also drives the belt assembly 183 to rotate, and the belt assembly 183 rotates to drive the vertical rod 18 to rotate, and the vertical rod 18 rotates to drive the indicator rod 182 to rotate, and the indicator rod 182 rotates synchronously with the measuring plate 92, and the indicator rod 182 rotates to indicate the angle on the dial 181, and the angle indicated by the indicator rod 182 is the rotation angle of the measuring plate 92. When the indicator rod 182 rotates to the angle of the ball pin press fit, stop twisting the worm 94, the rotating shaft 91 stops driving the belt assembly 183 to rotate, and the belt assembly 183 stops driving the indicator rod 182 to rotate through the vertical rod 18, and the subsequent operation can be started. In this way, the operator can understand the angle of the measuring plate 92 more clearly, thereby improving the efficiency of angle adjustment.

[0024] When the ball pin is placed on the ball seat of the thrust rod 201, the two-way screw 193 is twisted to rotate, and the rotation of the two-way screw 193 drives the front and rear arc-shaped positioning plates 192 to move in a direction close to each other, and the front and rear arc-shaped positioning plates 192 move to contact the ball pin, and the arc-shaped positioning plates 192 position the ball pin. Stop twisting the two-way screw 193, and the front and rear arc-shaped positioning plates 192 assist in positioning the ball pin, and then the subsequent operation can be started to press the ball pin into the ball seat of the thrust rod 201 to complete the press fit. When the ball pin is press-fitted, the ball pin is disengaged from the arc-shaped positioning plate 192, and the two-way screw 193 is twisted to rotate in the opposite direction to drive the front and rear arc-shaped positioning plates 192 to move and reset in a direction away from each other. In this way, the ball pin can be prevented from moving to affect the accuracy of the press fit, thereby improving the accuracy of the ball pin press fit.

[0025] The press-fit device of the thrust rod ball pin also includes a protection pad 20 , and the inner side surfaces of the front and rear arc-shaped positioning plates 192 are fixedly connected with the protection pad 20 , and the protection pad 20 can protect the arc-shaped positioning plates 192 .

[0026] When the front and rear arc-shaped positioning plates 192 move toward each other, the arc-shaped positioning plates 192 drive the front and rear protection pads 20 to move toward each other, and the protection pads 20 move to contact the ball pin, and the protection pads 20 protect the ball pin, and the arc-shaped positioning plates 192 position the ball pin through the protection pads 20. When the arc-shaped positioning plates 192 move to reset, the arc-shaped positioning plates 192 drive the protection pads 20 to move to reset. In this way, the arc-shaped positioning plates 192 can be prevented from excessively contacting the ball pin and causing the ball pin to wear, thereby ensuring the integrity of the ball pin.

[0027] The present invention also provides a thrust rod, which is prepared according to the press-fit device of the thrust rod ball pin.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A press-fit device for a thrust rod ball pin, comprising a bottom box (1) and a workbench (2) fixedly connected to the bottom box (1), a punching machine (3) being installed on the top of the workbench (2), a placement seat (4) being fixedly connected to the top of the workbench (2), a guide seat (5) being fixedly connected to the top of the workbench (2), an electric slide rail (7) being slidably installed on the guide seat (5), a limit frame (8) located above the placement seat (4) being fixedly connected to the moving part of the electric slide rail (7), an electric lead screw (6) being threadedly connected to the electric slide rail (7) being installed on the guide seat (5), characterized in that: The invention also comprises an angle measuring assembly, an annular plate (10), a driving assembly, a contact rod (12), a guide frame (13), an L-shaped plate (14), a connecting spring (15), a positioning frame (16) and a testing assembly. The angle measuring assembly is mounted on a limiting frame (8) and is used to measure the angle of a ball pin. The top of the workbench (2) is fixedly connected to an annular plate (10) located directly below the punching machine (3). The inner side of the annular plate (10) is fixedly connected to a guide frame (13) at uniform intervals along the circumferential direction. The positioning frame (16) is slidably mounted on the guide frame (13). The L-shaped plate (14) is slidably mounted on the guide frame (13). The L-shaped plate (14) and the guide frame (14) are connected to each other. A connecting spring (15) sleeved on the guide frame (13) is connected between the two parts, a contact rod (12) is fixedly connected to the L-shaped plate (14), a driving assembly is arranged between the workbench (2) and the annular plate (10), the driving assembly is used to drive the contact rod (12) to move, the contact rod (12) drives the L-shaped plate (14) to move, the L-shaped plate (14) drives the three positioning frames (16) to move in a direction close to each other through the connecting spring (15), so that the three positioning frames (16) can center the ball seats of thrust rods (201) of different sizes, and a testing assembly is arranged between the placement seat (4) and the workbench (2) for driving the ball pin to rotate for testing.

2. The press-fit device for the thrust rod ball pin according to claim 1, characterized in that: The angle measuring assembly comprises a fixing plate (9) fixedly connected to a limiting frame (8), a rotating shaft (91) rotatably penetrated on the fixing plate (9), a measuring plate (92) fixedly sleeved on the rotating shaft (91) for measuring the angle of the ball pin, a worm gear (93) fixedly sleeved on the rotating shaft (91), and a worm (94) rotatably connected to the fixing plate (9) and meshing with the worm gear (93).

3. The press-fit device for the thrust rod ball pin according to claim 2, characterized in that: The driving assembly comprises an annular disk (11) rotatably connected to the top circumference of the annular plate (10), the annular disk (11) is provided with oblique holes (111) evenly spaced along the circumference, the oblique holes (111) are slidably connected to the contact rod (12), an outer gear ring (114) is fixedly sleeved on the outer side surface of the annular disk (11) along the circumference, an electric rotating rod (112) located at the rear side of the annular plate (10) is installed on the top of the workbench (2), and a spur gear (113) meshing with the outer gear ring (114) is fixedly sleeved on the electric rotating rod (112).

4. The press-fit device for the thrust rod ball pin according to claim 3, characterized in that: The test assembly comprises a guide rod (17) symmetrically fixed to the outer side surface of the placement seat (4), the guide rod (17) passes through the annular plate (10), a push rod (171) is slidably mounted on the guide rod (17), the push rod (171) slidably passes through the placement seat (4), a rack (1711) is fixedly connected to the push rod (171), a guide gear (172) is rotatably connected to the top of the workbench (2), the guide gear (172) is located between the push rods (171), the guide gear (172) is meshed with the rack (1711), and a cylinder (173) is installed on the placement seat (4), and the end of the telescopic rod of the cylinder (173) is fixedly connected to the end of one of the push rods (171).

5. The press-fit device for the thrust rod ball pin according to claim 4, characterized in that: The press-fit device of the thrust rod ball pin also includes an indication assembly, which includes a vertical rod (18) rotatably connected to the fixed plate (9), a dial (181) rotatably mounted on the vertical rod (18), the dial (181) being fixedly connected to the fixed plate (9), an indication rod (182) being fixedly mounted on the vertical rod (18) and being parallel to the measuring plate (92) for indicating the angle of the measuring plate (92), and a belt assembly (183) being connected between the vertical rod (18) and the rotating shaft (91).

6. The press-fit device for the thrust rod ball pin according to claim 5, characterized in that: The press-fit device of the thrust rod ball pin also includes a positioning assembly, which includes a mounting plate (19) fixedly connected to the punching machine (3), a fixing rod (191) fixedly connected to the mounting plate (19), an arc-shaped positioning plate (192) slidably mounted on the fixing rod (191) for positioning the ball pin, a bidirectional screw (193) rotatably connected to the mounting plate (19), the threads on the front and rear sides of the bidirectional screw (193) are opposite, and the bidirectional screw (193) is threadedly connected to the arc-shaped positioning plate (192).

7. The press-fit device for the thrust rod ball pin according to claim 6, characterized in that: The thrust rod ball pin press-fit device also includes a protection pad (20) fixed to the inner side of the arc-shaped positioning plate (192) to protect the arc-shaped positioning plate (192).

8. A thrust rod, characterized in that: The press-fit device of the thrust rod ball pin according to any one of claims 1 to 7 is prepared.

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