Automatic assembling equipment for fixed knots

Abstract

The invention relates to the technical field of automobile part assembling, and discloses automatic fixed knot assembling equipment which comprises a workbench, an operating mechanism and a storage assembly are fixedly installed at the top of the workbench, a rotary supporting table is installed in the workbench, and a material containing hole penetrating into the workbench is formed in the top of the workbench. The operating mechanism is used for automatically adjusting the angle of the retainer c and pushing the steel ball d into a steel ball raceway of the besides-star wheel a, and the operating mechanism operates to trigger the storage assembly to discharge the steel ball d to be assembled to a to-be-assembled position; under the combined action of the operating mechanism, the storage assembly and the rotary supporting table, the assembling process of the steel ball d of the fixed knot can be automatically completed, the steps of angle adjustment of a retainer c, placement of the steel ball d, extrusion and in-place of the steel ball d and the like in a traditional manual assembling mode are replaced, the assembling efficiency of the fixed knot is effectively improved, the labor intensity of workers is greatly reduced, and the production efficiency is improved. And labor cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts assembly, and more specifically to an automatic assembly device for fixed joints. Background Art

[0002] In an automotive drive system, a drive shaft fixed joint (constant velocity joint) wheel plays a crucial role. It can achieve angle adjustment and power transmission between different axes. The structure of the constant velocity joint is similar to that of a spherical universal joint, and its core components are as shown in the attached figure, including: an inner star wheel b (inner raceway), an outer star wheel a (outer raceway), a cage c (retainer), and a plurality of steel balls d. These components cooperate together. Through the rolling movement of the steel balls between the inner and outer raceways, efficient and flexible power transmission between different axes is achieved, while maintaining the constant velocity and stability of the transmission. It is an important connecting component in an automotive drive axle. Figure 11 As shown, it includes: an inner star wheel b (inner raceway), an outer star wheel a (outer raceway), a cage c (retainer), and a plurality of steel balls d. These components work together to achieve efficient and flexible power transmission between different axes through the rolling movement of the steel balls between the inner and outer raceways, while maintaining the constant velocity and stability of the transmission. It is an important connecting component in an automotive drive axle.

[0003] The assembly of the drive shaft fixed joint (constant velocity joint) is a key process in drive shaft production. Traditionally, this process relies on manual operation. Especially during the installation process of the steel balls, it is necessary to manually install several steel balls d one by one. First, it is necessary to manually use tools to adjust the angle of the cage c inside the outer star wheel a until the ball grooves on the side wall of the cage c are exposed outside the outer star wheel a. Then, the steel balls d to be assembled are placed at the assembly position (i.e., the intersection of the ball grooves on the side wall of the cage c and the steel ball raceway on the inner wall of the outer star wheel a). After that, use tools to push the steel balls d downward so that they are stuck in the ball grooves of the cage c to form a connection with the inner star wheel b. Finally, reset the cage c to complete the installation of the steel balls d. Since several steel balls d need to be installed inside the fixed joint, the efficiency of manual assembly in the traditional way is low, and the labor of workers is large, and the labor cost is relatively high. Therefore, an automatic assembly device for fixed joints is proposed to automatically complete the assembly of the steel balls d in the fixed joint assembly process, improve work efficiency and save labor. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic assembly device for fixed joints to solve the problems of difficult manual assembly and low efficiency of the constant velocity joint of the traditional drive shaft in the above-mentioned background art.

[0005] The present invention provides the following technical solution: an automatic assembly device for fixed joints, including a workbench. An operating mechanism and a material storage component are fixedly installed on the top of the workbench. A rotating support table is installed inside the workbench, and a material placement hole penetrating through to the inside is provided on the top of the workbench. The operating mechanism is used to automatically adjust the angle of the cage c and push the steel balls d into the steel ball raceway of the outer star wheel a. The operation of the operating mechanism is used to trigger the material storage component to discharge the steel balls d to be assembled to the assembly position. The operating mechanism is composed of a lifting frame, an angle-adjusting arm, a horizontal output mechanism, and a vertical output mechanism. The lifting frame is docked with the angle-adjusting arm, and the lifting frame is used to control the lifting of the angle-adjusting arm. The bottom end of the angle-adjusting arm is docked with the cage c to form an integral body. The horizontal output mechanism is installed on the lifting frame, and the output of the horizontal output mechanism is used to control the angle of the angle-adjusting arm. The vertical output mechanism is installed on the lifting frame, and the output of the vertical output mechanism is used to apply a downward pressure to the steel ball d to be assembled.

[0006] Further, the lifting frame includes two arm frames, an arc top frame, and two electric cylinders I. The two arm frames are fixedly installed on the top of the workbench. Vertical sliding grooves are opened on the inner sides of the two arm frames, and ear blocks are slidably sleeved in the vertical sliding grooves. An arc rail groove is provided at the bottom of the arc top frame, and moving plates are fixedly connected to both ends of the bottom of the arc top frame. The bottom ends of the two moving plates are respectively fixedly connected to the two ear blocks. The two electric cylinders I are installed inside the workbench, and the output shafts of the two electric cylinders I penetrate the workbench and are connected to the two ear blocks; the angle-adjusting arm includes a pressing cover, a lever is fixedly connected to the top of the pressing cover, a top slider is fixedly connected to the top end of the lever, and the top slider is slidably sleeved in the arc rail groove of the arc top frame.

[0007] Further, the radian of the top of the pressing cover is the same as the radian of the surface of the cage c, and an embedded circular frame f is provided at the bottom of the pressing cover.

[0008] Further, the horizontal output mechanism includes a horizontal oil cylinder, the horizontal oil cylinder is fixedly connected to the side wall of the lifting frame through an end cylinder, the output shaft of the horizontal oil cylinder is connected to a push-pull rod through a connecting plate, two positioning beads are provided on the side wall of the push-pull rod, the vertical output mechanism includes a vertical oil cylinder, a rubber contact head is fixedly connected to the output end of the vertical oil cylinder, both sides of the piston inside the horizontal oil cylinder are respectively connected to the two oil nozzles of the vertical oil cylinder through two oil pipes, a hydraulic oil transmission mechanism is installed inside the workbench, the oil outlet end of the hydraulic oil transmission mechanism is connected to the two oil nozzles of the horizontal oil cylinder, a vertical through groove is provided on the side wall of the angle-adjusting arm, the push-pull rod passes through the vertical through groove, the end of the push-pull rod passes through the lifting frame and is connected to the storage component, the two positioning beads are respectively located on both sides of the vertical through groove, and the horizontal oil cylinder and the vertical oil cylinder expand and contract in opposite running tracks.

[0009] Further, the storage component includes a storage barrel and a rail frame. An L-shaped feeding pipe is fixedly connected to the discharge port of the storage barrel. A discharge pipe orifice and a rod inlet hole are respectively opened on both sides of the L-shaped feeding pipe. The rail frame is arranged at the bottom of the discharge pipe orifice. The center point of the rod inlet hole overlaps with the axis of the push-pull rod, and the diameter of the rod inlet hole is larger than the diameter of the push-pull rod.

[0010] Further, the rotary support table includes a second electric cylinder and a rotary driving mechanism. The second electric cylinder is installed at the bottom of the inner wall of the workbench. The top of the output shaft of the second electric cylinder is connected with a sliding column through a knob. The top of the sliding column is fixedly connected with a placement table for placing the outer star wheel a. The rotary driving mechanism is installed on one side of the inner wall of the workbench, and the output end of the rotary driving mechanism is butted against the sliding column.

[0011] Further, a positioning ring is fixedly connected to the periphery of the material placement hole at the top of the workbench.

[0012] Further, a number of hemispherical grooves are opened at the bottom of the positioning ring, and a number of balls are movably sleeved in the hemispherical grooves.

[0013] Further, the placement table includes two U-shaped plates, and the inner sides of the two U-shaped plates are fixedly connected through a number of connecting rods.

[0014] Further, the rotary support table includes a fixing plate. A through hole penetrating to the bottom is opened at the top of the fixing plate, and a rotary sleeve is rotatably sleeved in the through hole. A passive gear is fixedly connected to the side wall of the rotary sleeve. A motor is fixedly installed at the top of the fixing plate, and a driving gear is fixedly connected to the output shaft of the motor. The passive gear meshes with the driving gear. The rotary sleeve is slidably sleeved on the side wall of the sliding column. A positioning convex strip is arranged on the side wall of the sliding column, and a positioning groove is opened on the inner wall of the rotary sleeve. The positioning convex strip is embedded in the positioning groove.

[0015] The technical effects and advantages of the present invention: Through the combined action of the operating mechanism, the material storage component, and the rotary support table, the present invention can automatically complete the assembly process of the fixed joint steel ball d, replacing steps such as the angle adjustment step of the cage c, the placement step of the steel ball d, and the extrusion of the steel ball d into place in the traditional manual assembly method, effectively improving the assembly efficiency of the fixed joint, greatly reducing the manual labor intensity, and saving labor costs; By improving the structures of the horizontal output mechanism and the vertical output mechanism of the operating mechanism, the hydraulic oil supply mechanism of the power source can be shared and synchronous operation can be achieved, enabling the equipment to reduce the use of the power source, enhancing the structural compactness of the equipment, and further improving the working efficiency by optimizing the assembly rhythm of the fixed joint through synchronous operation; Further improving the structure of the horizontal output mechanism to make it have a linkage relationship with the material storage component. When the horizontal output mechanism operates, the material storage component can automatically discharge materials, output the steel ball d to be assembled and feed it, making the automation effect of the equipment better, and further optimizing the rhythm of the fixed joint assembly of the equipment, making the connection of each assembly step smoother. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic enlarged structure view of location A in the present invention Figure 1 ; Figure 3 Schematic view of the second state of the angle adjustment arm, the lateral output mechanism and the vertical output mechanism in the present invention Figure 2 ; Figure 4 Schematic view of the lifting frame and the angle adjustment arm structure in the present invention Figure 2 ; Figure 5 Schematic view of the pressure application cover structure in the present invention Figure 4 ; Figure 6 Schematic view of the lateral output mechanism and the vertical output mechanism structure in the present invention Figure 4 ; Figure 7 Schematic view of the storage component structure in the present invention Figure 1 ; Figure 8 Schematic view of the rotary support platform structure in the present invention Figure 1 ; Figure 9 Schematic view of the rotary drive mechanism structure in the present invention Figure 8 ; Figure 10 Schematic view of the positioning ring structure in the present invention Figure 8 ; Figure 11 Schematic view of the existing fixed joint structure

[0017] Reference numerals are: 1, workbench; 2, operating mechanism; 3, storage component; 4, hydraulic oil transmission mechanism; 5, rotary support platform; 6, positioning ring; 21, lifting frame; 22, angle adjustment arm; 23, lateral output mechanism; 24, vertical output mechanism; 211, boom; 212, arc top frame; 213, moving plate; 214, ear block; 215, electric cylinder 1; 221, pressure application cover; 222, lever; 223, top slider; 231, lateral oil cylinder; 232, connecting plate; 233, push-pull rod; 234, positioning bead; 235, oil pipe; 236, end cylinder; 241, vertical oil cylinder; 242, rubber contact; 31, storage barrel; 32, L-shaped feed pipe; 33, discharge pipe orifice; 34, rail frame; 35, rod inlet hole; 51, electric cylinder 2; 52, knob; 53, sliding column; 54, placement table; 55, rotary drive mechanism; 541, U-shaped plate; 542, connecting rod; 551, fixed plate; 552, rotary sleeve; 553, passive gear; 554, active gear; 555, motor; 61, ball Detailed Description of the Invention

[0018] The following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings

[0019] Referring to Figures 1-3 , the present invention provides a fixed joint automatic assembly device, including a workbench 1. An operating mechanism 2 and a material storage component 3 are fixedly installed on the top of the workbench 1. A rotating support table 5 is installed inside the workbench 1. A material placing hole penetrating to the inside is provided on the top of the workbench 1. The operating mechanism 2 is used to automatically adjust the angle of the cage c and push the steel ball d into the steel ball raceway of the outer star wheel a. The operation of the operating mechanism 2 is used to trigger the material storage component 3 to discharge the steel balls d to be assembled to the assembly position. The operating mechanism 2 is composed of a lifting frame 21, an angle adjusting arm 22, a horizontal output mechanism 23, and a vertical output mechanism 24. The lifting frame 21 is docked with the angle adjusting arm 22. The lifting frame 21 is used to control the lifting of the angle adjusting arm 22. The bottom end of the angle adjusting arm 22 is docked with the cage c to form an integral body. The horizontal output mechanism 23 is installed on the lifting frame 21. The output of the horizontal output mechanism 23 is used to control the angle of the angle adjusting arm 22. The vertical output mechanism 24 is installed on the lifting frame 21. The output of the vertical output mechanism 24 is used to apply a downward pressure to the assembly position of the steel ball d.

[0020] During operation, the assembled cage c and the inner star wheel b contained in the outer star wheel a are placed on the rotating support table 5. The outer star wheel a is supported by the rotating support table 5 and lifted to the material placing hole. Then, the steel ball d assembly process is carried out through the operation of the operating mechanism 2. First, the lifting frame 21 drives the angle adjusting arm 22 to move downward and dock with the cage c to form an integral body. Then, the horizontal output mechanism 23 outputs to generate a driving force on the angle adjusting arm 22 to make it skew. When the angle adjusting arm 22 is skewed, it will drive the cage c to generate an angular change in the outer star wheel a until the ball grooves on the side wall of the cage c are exposed. Then, the material storage component 3 operates to output the steel balls d to be assembled to the assembly position, that is, the bottom end of the vertical output mechanism 24. The steel ball d can be pressed into the steel ball raceway of the outer star wheel a through the output of the vertical output mechanism 24, thus completing the assembly of a single steel ball d. Then, the horizontal output mechanism 23 and the vertical output mechanism 24 are reset. The outer star wheel a is driven by the rotating support table 5 to rotate and change positions, and the installation of the next steel ball d can be carried out to achieve the automatic assembly effect.

[0021] Referring to Figure 4, the lifting frame 21 includes two boom arms 211, an arc-shaped top frame 212, and two first electric cylinders 215. The two boom arms 211 are fixedly installed on the top of the workbench 1. Vertical sliding grooves are formed on the inner sides of the two boom arms 211, and ear blocks 214 are slidably sleeved in the vertical sliding grooves. An arc-shaped rail groove is provided at the bottom of the arc-shaped top frame 212. Two moving plates 213 are fixedly connected to both ends of the bottom of the arc-shaped top frame 212. The bottom ends of the two moving plates 213 are respectively fixedly connected to the two ear blocks 214. The two first electric cylinders 215 are installed inside the workbench 1, and the output shafts of the two first electric cylinders 215 penetrate through the workbench 1 and are connected to the two ear blocks 214; the angle-adjusting arm 22 includes a pressing cover 221. A lever 222 is fixedly connected to the top of the pressing cover 221. A top slider 223 is fixedly connected to the top end of the lever 222. The top slider 223 is slidably sleeved in the arc-shaped rail groove of the arc-shaped top frame 212.

[0022] The output of the first electric cylinder 215 drives the ear block 214 to lift. The ear block 214 drives the vertical displacement of the moving plate 213. The height of the arc-shaped top frame 212 is controlled by the vertical displacement of the moving plate 213. Through the connection relationship between the arc-shaped top frame 212 and the top slider 223, the lifting and connection of the pressing cover 221 with the cage c are achieved. At this time, the centers of the arc-shaped top frame 212 and the cage c overlap. Since the connection between the angle-adjusting arm 22 and the cage c is mainly fixed by the pressing effect of the lifting frame 21, and when the angle-adjusting arm 22 is skewed, it may be disconnected from the cage c. Therefore, through the structural and shape settings of the lifting frame 21 and the angle-adjusting arm 22, the lifting frame 21 can apply a pressure towards the cage c to the angle-adjusting arm 22 to prevent disconnection.

[0023] Refer to Figure 5 , the top arc of the pressing cover 221 has the same curvature as the surface of the cage c, and an embedded circular frame f is provided at the bottom of the pressing cover 221.

[0024] Since the existing shape of the cage c is similar to a spherical shape, that is, an incomplete sphere, through the shape setting of the top of the pressing cover 221, when the pressing cover 221 is connected to the cage c, the pressing cover 221 can be used as a spherical extension of the cage c. Thus, when controlling the angle change of the cage c when the angle-adjusting arm 22 is skewed, a part of the pressing cover 221 can enter the internal planet gear a with the cage c, avoiding interference with the skewing of the angle-adjusting arm 22 at the connection between the angle-adjusting arm 22 and the cage c. By embedding the embedded circular frame f into the internal of the cage c, the dislocation of the pressing cover 221 on the top of the cage c can be avoided.

[0025] Refer to Figure 6The horizontal output mechanism 23 includes a horizontal cylinder 231, which is fixedly connected to the side wall of the lifting frame 21 through an end tube 236. The output shaft of the horizontal cylinder 231 is connected to a push-pull rod 233 through a connecting plate 232. Two positioning beads 234 are arranged on the side wall of the push-pull rod 233. The vertical output mechanism 24 includes a vertical cylinder 241. The output end of the vertical cylinder 241 is fixedly connected to a rubber contact 242. The interior of the horizontal cylinder 231 is located on both sides of the piston through two The oil pipe 235 is connected with the two oil nozzles of the vertical oil cylinder 241, and a hydraulic oil delivery mechanism 4 is installed inside the workbench 1. The oil outlet end of the hydraulic oil delivery mechanism 4 is connected with the two oil nozzles of the horizontal oil cylinder 231. The side wall of the angle adjustment arm 22 is provided with a vertical groove, and the push-pull rod 233 passes through the vertical groove. The end of the push-pull rod 233 passes through the lifting frame 21 and is connected with the storage assembly 3. The two positioning beads 234 are respectively located on both sides of the vertical groove, and the horizontal oil cylinder 231 and the vertical oil cylinder 241 extend and retract in opposite running trajectories.

[0026] When the lateral output mechanism 23 is running, the push-pull rod 233 is driven to move horizontally by the extension of the lateral oil cylinder 231. Under the action of the two positioning beads 234, the angle adjustment arm 22 can be toggled, thereby causing the angle adjustment arm 22 to be skewed. When the vertical output mechanism 24 is running, the steel ball d can be pressed down by the extension of the vertical oil cylinder 241. The connection effect of the oil pipe 235 can make the vertical oil cylinder 241 and the lateral oil cylinder 231 run synchronously, that is, when the lateral output mechanism 23 runs to control the angle adjustment arm 22 to be skewed, the vertical output mechanism 24 automatically resets to avoid interference with the feeding of the steel ball d to be assembled. When the lateral output mechanism 23 resets to control the angle adjustment arm 22 to be straightened, the vertical output mechanism 24 automatically outputs to press down the steel ball d to be assembled. Through this structural setting, the lateral output mechanism 23 and the vertical output mechanism 24 share a power source, which improves the compactness of the structure, and the synchronous operation effect makes the equipment more efficient.

[0027] Reference Figure 7 The material storage assembly 3 includes a material storage barrel 31 and a rail frame 34. The material storage barrel 31 is fixedly connected to an L-shaped material delivery pipe 32 at its discharge port. A discharge pipe port 33 and a feed rod hole 35 are respectively provided on both sides of the L-shaped material delivery pipe 32. The rail frame 34 is arranged at the bottom of the discharge pipe port 33. The center point of the feed rod hole 35 overlaps with the axis of the push-pull rod 233, and the diameter of the feed rod hole 35 is larger than the diameter of the push-pull rod 233.

[0028] A number of steel balls d are stored in the storage bucket 31. Under the influence of gravity, the stored steel balls d can enter the L-shaped material conveying pipe 32 through the discharge port for arrangement. When the transverse output mechanism 23 operates, that is, the push-pull rod 233 moves horizontally. The end of the push-pull rod 233 can enter the L-shaped material conveying pipe 32 through the inlet rod hole 35, and the arranged single steel ball d is ejected from the discharge pipe orifice 33. The steel ball d falls onto the rail frame 34 and slides along the rail frame 34 to be poured out to the position to be assembled, thereby achieving the effect of automatic feeding and further improving the automation effect of the equipment.

[0029] Referring to Figure 8 , the rotary support table 5 includes a second electric cylinder 51 and a rotary drive mechanism 55. The second electric cylinder 51 is installed at the bottom of the inner wall of the workbench 1. The top of the output shaft of the second electric cylinder 51 is connected to a sliding column 53 through a knob 52. A placement table 54 is fixedly connected to the top of the sliding column 53. The placement table 54 is used to place the outer star wheel a. The rotary drive mechanism 55 is installed on one side of the inner wall of the workbench 1, and the output end of the rotary drive mechanism 55 is docked with the sliding column 53.

[0030] During operation, the outer star wheel a is placed on the placement table 54. The output of the second electric cylinder 51 drives the sliding column 53 to move upward. The upward movement of the sliding column 53 drives the placement table 54 to move upward, and then the outer star wheel a can be controlled to enter the material placement hole of the workbench 1. When it is necessary to control the rotation of the outer star wheel a, the output of the rotary drive mechanism 55 drives the sliding column 53 to rotate. The rotation of the sliding column 53 drives the placement table 54 to rotate, and then the placed outer star wheel a can be rotated. Since the second electric cylinder 51 and the sliding column 53 are connected through the knob 52, when the sliding column 53 rotates, the self-rotation of the knob 52 can avoid causing torque to the second electric cylinder 51.

[0031] Referring to Figure 8 , a positioning ring 6 is fixedly connected to the periphery of the material placement hole at the top of the workbench 1.

[0032] When the rotary support table 5 controls the upward movement of the outer star wheel a, the positioning ring 6 can play a role in resisting the top edge of the outer star wheel a. That is, the outer star wheel a can be clamped and fixed through the rotary support table 5 and the positioning ring 6, thereby improving the stability.

[0033] Referring to Figure 10 , a number of hemispherical grooves are formed at the bottom of the positioning ring 6, and a number of balls 61 are movably sleeved in the hemispherical grooves.

[0034] When the positioning ring 6 contacts the outer star wheel a, friction will be generated, which will interfere with its rotation. By arranging a number of balls 61 to contact the top of the outer star wheel a, the friction between the positioning ring 6 and the outer star wheel a can be reduced.

[0035] Referring to Figure 8 , the placement table 54 includes two U-shaped plates 541, and the inner sides of the two U-shaped plates 541 are fixedly connected through a number of connecting rods 542.

[0036] Since the bottom end of the outer star wheel a has a convex shaft, through the shape setting of the U-shaped plate 541, the convex shaft part at the bottom of the outer star wheel a can be inserted into the inner wall through the opening of the U-shaped plate 541, and the main body part is supported by the U-shaped plate 541, so that the outer star wheel a can be stably placed on the placement table 54.

[0037] Refer to Figure 9 , the rotary support table 5 includes a fixed plate 551. A through hole penetrating from the top to the bottom is opened on the top of the fixed plate 551. A rotary sleeve 552 is rotatably sleeved in the through hole. A passive gear 553 is fixedly connected to the side wall of the rotary sleeve 552. A motor 555 is fixedly installed on the top of the fixed plate 551. The output shaft of the motor 555 is fixedly connected to an active gear 554. The passive gear 553 meshes with the active gear 554. The rotary sleeve 552 is slidably sleeved on the side wall of the sliding column 53. A positioning convex strip is arranged on the side wall of the sliding column 53. A positioning groove is opened on the inner wall of the rotary sleeve 552. The positioning convex strip is embedded in the positioning groove.

[0038] The motor 555 outputs power to drive the active gear 554 to rotate. Under the meshing effect of the active gear 554 and the passive gear 553, the rotary sleeve 552 can be rotated. Through the cooperation relationship between the positioning convex strip and the positioning groove, the rotary sleeve 552 can drive the sliding column 53 to rotate. And through the connection relationship between the rotary sleeve 552 and the sliding column 53, the rotary drive mechanism 55 can be prevented from interfering with the up and down displacement of the sliding column 53.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. The present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic assembling device for fixed joints, characterized in that: It includes a workbench (1), on the top of which an operating mechanism (2) and a material storage component (3) are fixedly installed. A rotating support platform (5) is installed inside the workbench (1). A material placement hole penetrating to the inside is provided on the top of the workbench (1). The operating mechanism (2) is used to automatically adjust the angle of the cage c and push the steel ball d into the steel ball raceway of the outer star wheel a. The operation of the operating mechanism (2) is used to trigger the discharge of the material storage component (3) to discharge the steel balls d to be assembled to the assembly position. The operating mechanism (2) is composed of a lifting frame (21), an angle adjusting arm (22), a lateral output mechanism (23), and a vertical output mechanism (24). The lifting frame (21) is docked with the angle adjusting arm (22). The lifting frame (21) is used to control the lifting of the angle adjusting arm (22). The bottom end of the angle adjusting arm (22) is docked with the cage c to form an integral body. The lateral output mechanism (23) is installed on the lifting frame (21), and the output of the lateral output mechanism (23) is used to control the angle of the angle adjusting arm (22). The vertical output mechanism (24) is installed on the lifting frame (21), and the output of the vertical output mechanism (24) is used to apply a downward pressure to the assembly position of the steel ball d.

2. The automatic assembly device for fixed joints according to claim 1, wherein: The lifting frame (21) includes two arm frames (211), an arc-shaped top frame (212), and two electric cylinders I (215). The two arm frames (211) are fixedly installed on the top of the workbench (1). Vertical sliding grooves are opened on the inner sides of the two arm frames (211), and ear blocks (214) are slidably sleeved in the vertical sliding grooves. An arc-shaped rail groove is provided at the bottom of the arc-shaped top frame (212). Moving plates (213) are fixedly connected to both ends of the bottom of the arc-shaped top frame (212). The bottom ends of the two moving plates (213) are respectively fixedly connected to the two ear blocks (214). The two electric cylinders I (215) are installed inside the workbench (1), and the output shafts of the two electric cylinders I (215) penetrate the workbench (1) and are connected to the two ear blocks (214). The angle adjusting arm (22) includes a pressure applying cover (221). A dial rod (222) is fixedly connected to the top of the pressure applying cover (221). A top slider (223) is fixedly connected to the top end of the dial rod (222). The top slider (223) is slidably sleeved in the arc-shaped rail groove of the arc-shaped top frame (212).

3. The automatic assembly device for fixed joints according to claim 2, characterized in that: The top arc of the pressure applying cover (221) has the same curvature as the surface of the cage c. An embedded circular frame f is provided at the bottom of the pressure applying cover (221).

4. The automatic assembly device for fixed joints according to claim 1, characterized in that: The horizontal output mechanism (23) includes a horizontal oil cylinder (231). The horizontal oil cylinder (231) is fixedly connected to the side wall of the lifting frame (21) through an end cylinder (236). The output shaft of the horizontal oil cylinder (231) is connected to a push-pull rod (233) through a connecting plate (232). Two positioning beads (234) are arranged on the side wall of the push-pull rod (233). The vertical output mechanism (24) includes a vertical oil cylinder (241). The output end of the vertical oil cylinder (241) is fixedly connected with a rubber contact head (242). Inside the horizontal oil cylinder (231), on both sides of the piston, two oil pipes (235) are respectively connected to two nozzles of the vertical oil cylinder (241). Inside the workbench (1), a hydraulic oil delivery mechanism (4) is installed. The oil outlet end of the hydraulic oil delivery mechanism (4) is connected to two nozzles of the horizontal oil cylinder (231). A vertical through groove is arranged on the side wall of the angle adjustment arm (22). The push-pull rod (233) penetrates through the vertical through groove. The end of the push-pull rod (233) penetrates through the lifting frame (21) and is connected to the material storage assembly (3). The two positioning beads (234) are respectively located on both sides of the vertical through groove. The horizontal oil cylinder (231) and the vertical oil cylinder (241) expand and contract in opposite running trajectories.

5. The automatic assembly device for fixed joints according to claim 4, characterized in that: The material storage assembly (3) includes a material storage barrel (31) and a rail frame (34). The discharge port of the material storage barrel (31) is fixedly connected with an L-shaped material conveying pipe (32). Discharge pipe orifices (33) and rod insertion holes (35) are respectively arranged on both sides of the L-shaped material conveying pipe (32). The rail frame (34) is arranged at the bottom of the discharge pipe orifice (33). The center point of the rod insertion hole (35) coincides with the axis of the push-pull rod (233), and the diameter of the rod insertion hole (35) is larger than the diameter of the push-pull rod (233).

6. The automatic assembly device for fixed joints according to claim 1, characterized in that: The rotary support table (5) includes a second electric cylinder (51) and a rotary driving mechanism (55). The second electric cylinder (51) is installed at the bottom of the inner wall of the workbench (1). The top end of the output shaft of the second electric cylinder (51) is connected to a sliding column (53) through a knob (52). A placing table (54) is fixedly connected to the top of the sliding column (53). The placing table (54) is used for placing the outer star wheel a. The rotary driving mechanism (55) is installed on one side of the inner wall of the workbench (1). The output end of the rotary driving mechanism (55) is docked with the sliding column (53).

7. The automatic assembly device for fixed joints according to claim 6, characterized in that: A positioning ring (6) is fixedly connected to the periphery of the material placing hole on the top of the workbench (1).

8. An automatic assembly device for a fixed section, according to claim 7, characterized in that: A plurality of hemispherical grooves are arranged at the bottom of the positioning ring (6). A plurality of balls (61) are movably sleeved in the plurality of hemispherical grooves.

9. The automatic assembly device for fixed joints according to claim 6, wherein: The placing table (54) includes two U-shaped plates (541). The inner sides of the two U-shaped plates (541) are fixedly connected through a plurality of connecting rods (542).

10. The automatic assembly device for fixed joints according to claim 6, characterized in that: The rotating support table (5) includes a fixed plate (551). A through hole extending from the top to the bottom is formed in the top of the fixed plate (551). A rotating sleeve (552) is rotatably sleeved in the through hole. A driven gear (553) is fixedly connected to the side wall of the rotating sleeve (552). A motor (555) is fixedly installed on the top of the fixed plate (551). A driving gear (554) is fixedly connected to the output shaft of the motor (555). The driven gear (553) meshes with the driving gear (554). The rotating sleeve (552) is slidably sleeved on the side wall of the sliding column (53). A positioning rib is arranged on the side wall of the sliding column (53). A positioning groove is formed in the inner wall of the rotating sleeve (552). The positioning rib is embedded in the positioning groove.

Images