Automobile seat slide rail retainer and steel ball assembly equipment

Abstract

The application discloses a kind of automobile seat slide rail retainer and steel ball assembly equipment, belong to industrial robot technical field.Mainly including feeding assembly with bunker, the push block is arranged in the bottom of bunker, rotating assembly includes drive base and carousel, the top surface of carousel is fixed component, the side of carousel is provided with the press-fitting component for steel ball is pressed into the inside of retainer, material taking manipulator is arranged between feeding assembly and rotating assembly, suction assembly is installed on material taking manipulator, suction assembly includes suction pipe, the bottom of suction pipe is provided with suction hole, the side of suction pipe is provided with negative pressure pipe.The application discloses a kind of automobile seat slide rail retainer and steel ball assembly equipment, by setting up storage component, so that steel ball is always in stable limiting state in the whole process from adsorption, conveying to discharging, will not be position deviation because of air flow fluctuation or equipment vibration, can push steel ball to the opening of retainer pocket, improve the practicability of device.

Description

Technical Field

[0001] This invention relates to the field of industrial robot technology, specifically to an assembly device for automotive seat slide rail retainers and steel balls. Background Technology

[0002] The car seat slide rail is the core component for adjusting the seat position. It mainly consists of slide rail, retainer and steel ball. The steel ball is installed in the pocket of the retainer to help the seat slide smoothly on the slide rail.

[0003] During the assembly of the steel ball and the cage, the steel ball needs to be pressed and inserted into the pocket of the cage, which requires the use of assembly equipment.

[0004] However, in the existing assembly robots, most of them use negative pressure suction nozzles to clamp the workpiece during the assembly process and then release it after moving it above the assembly point. At this time, the workpiece will fall freely into the preset assembly point.

[0005] However, during the feeding process of the negative pressure nozzle, due to the certain height difference between the steel ball and the pocket, although the steel ball and the pocket are aligned in the vertical direction, the steel ball has high rolling properties. Therefore, when the steel ball falls freely onto the pocket, it may roll, causing a slight offset between the steel ball and the pocket. If the steel ball is placed close to the pocket, when the negative pressure nozzle places the steel ball and moves away, the negative pressure nozzle may make a slight collision with the steel ball during the departure process. This may cause the steel ball to roll into the adjacent pocket or roll away from the retainer, thus making it impossible to press the steel ball. Therefore, it is necessary to provide an automotive seat slide rail retainer and steel ball assembly device to solve the above problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an assembly device for automotive seat slide rail retainer and steel ball, so as to achieve the effect of fast and accurate installation.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is: an assembly device for automotive seat slide rail retainers and steel balls, including a connecting frame, a placement frame on one side of the connecting frame, a feeding component having a hopper, a pusher for discharging material at the bottom of the hopper, a rotating component including a drive base and a turntable, a plurality of fixing components for assembling retainers being provided on the top surface of the turntable, a pressing component for pressing steel balls into the retainer being provided on one side of the turntable, a material handling robot being disposed between the feeding component and the rotating component, the material handling robot being equipped with an air extraction component, the air extraction component including an air extraction pipe, an air extraction hole being provided at the bottom of the air extraction pipe, a negative pressure pipe being provided on one side of the air extraction pipe, a material storage component being disposed inside the air extraction pipe, including a third cylinder, the third cylinder being mounted on the top of the air extraction pipe. The third cylinder's output end passes through the suction pipe and is fixedly mounted with a push rod. A pressure block is fixedly mounted at the end of the push rod away from the third cylinder. A limiting block is located at the bottom of the suction pipe. A limiting block is installed at the bottom end of the suction pipe. A limiting arc groove is formed on the inner side of the limiting block. A stop block is provided in the limiting arc groove. A clamping part is slidably assembled in the limiting arc groove. The clamping part includes a connecting plate and at least three sets of elastic clamping blocks. The connecting plate is slidably installed inside the suction pipe. A through hole adapted to the size of the steel ball is opened at its center. The bottom of the connecting plate is equipped with multiple sets of elastic clamping blocks. A gap adapted to the size of the stop block is left between the multiple sets of elastic clamping blocks. A clamping hole is formed at the bottom of the multiple sets of elastic clamping blocks. The size of the clamping hole is smaller than the size of the steel ball.

[0008] Furthermore, a support plate is also provided in a ring around the outer side of the pressure block, and two sets of pressure columns are provided extending from the bottom of the support plate. A first spring is installed on the top of the connecting plate, and the top of the first spring is adapted to contact the support plate.

[0009] Two sets of second springs are installed at the bottom of the connecting plate. The rigidity of the second springs is greater than that of the first spring. Two sets of placement slots are opened at the top of the limiting block, and the bottom of the second springs is installed inside the placement slots.

[0010] Furthermore, the material handling robot includes a rotating base, which is mounted on the top of the placement frame. A fixed frame is mounted on the rotating base, and a second cylinder is provided on one side of the fixed frame. The output end of the second cylinder is oriented towards the rotating base, and a fixed block is mounted on the bottom of the second cylinder. The air extraction assembly is installed inside the fixed block.

[0011] Furthermore, the rotating assembly includes a drive base and a turntable, the drive base being mounted on the top surface of the placement frame, and the turntable being horizontally rotatably mounted on the top of the drive base.

[0012] Furthermore, each of the fixing components includes a fixture base, which is fastened to the top surface of the turntable by bolts. The top surface of the fixture base has a positioning groove along its length. Multiple sets of clamping cylinders are installed on the fixture base, and the output end of each clamping cylinder is connected to a clamping block.

[0013] Furthermore, a pressing assembly is provided on one side of the turntable. The pressing assembly includes a gantry frame, which is located on the outside of the placement frame. A pressing cylinder is vertically mounted on the top of the gantry frame.

[0014] Furthermore, the output end of the press-fit cylinder is connected to a mounting plate, and two sets of guide columns are vertically mounted on the top surface of the mounting plate. The guide columns extend upward through the top of the gantry frame, and a pressure head assembly is mounted on the bottom surface of the mounting plate. The pressure head assembly contains multiple pressure heads.

[0015] Furthermore, a testing component is provided on the placement rack between the hopper and the turntable. The testing component includes a bracket installed on the placement rack, two sets of first slide rails are installed on one side of the bracket, a lifting frame is installed on the first slide rails, and a fourth cylinder is installed on the top of the bracket. The output end of the fourth cylinder is connected downward to the top of the lifting frame.

[0016] Furthermore, the bottom of the pressure block has a recess that matches the size of the steel ball.

[0017] Furthermore, two sets of discharge through holes are provided on one side of the bottom plate of the silo. The discharge through holes extend vertically through the bottom of the silo, and the diameter of the discharge through holes is larger than the diameter of a single steel ball.

[0018] Furthermore, a rotary motor is installed at the top of the center of the inner cavity of the hopper, the output end of the rotary motor passes through the hopper and is equipped with a rotating shaft, and a material sweeping blade is installed at the bottom of the rotating shaft.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects: The automotive seat slide rail retainer and steel ball assembly equipment provided in this application, by setting up a storage component, ensures that the steel ball is always in a stable and limited position throughout the entire process from adsorption, conveying to discharge, and will not shift its position due to airflow fluctuations or equipment vibration. It can accurately push the steel ball to the opening of the retainer pocket, thereby improving the practicality of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an assembly device for an automotive seat slide rail retainer and steel ball according to the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the feeding assembly;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 for Figure 2 Schematic diagram of the intermediate pressure assembly;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is a schematic diagram of the material storage assembly.

[0026] Figure 7 This is a schematic diagram of the adsorption of steel balls;

[0027] Figure 8 This is a schematic diagram showing the discharge of steel balls;

[0028] Figure 9 This is a schematic diagram of the internal structure of the limiting block;

[0029] Figure 10 This is a schematic diagram of the test position for the steel ball;

[0030] Figure 11 This is a schematic diagram illustrating the motion of the steel ball as it is ejected from the extraction tube.

[0031] The following are the labeling elements in the figure:

[0032] 1. Assembly mechanism;

[0033] 2. Feeding assembly; 21. Connecting frame; 211. Placement frame; 22. Hopper; 23. Discharge through hole; 24. Rotating shaft; 25. Sweeping paddle; 26. Rotary motor; 27. First cylinder; 28. Push block; 29. ​​Material receiving hole;

[0034] 3. Material handling robot; 31. Rotating seat; 32. Fixed frame; 33. Second cylinder; 34. Fixed block;

[0035] 4. Air extraction assembly; 41. Air extraction pipe; 42. Negative pressure pipe;

[0036] 5. Rotating component; 51. Turntable; 52. Drive base;

[0037] 6. Fixture assembly; 61. Fixture base; 62. Positioning groove; 63. Clamping cylinder; 64. Clamping block;

[0038] 7. Press-fitting assembly; 71. Gantry frame; 72. Press-fitting cylinder; 73. Mounting plate; 74. Guide column; 75. Press head assembly;

[0039] 8. Material storage assembly; 81. Third cylinder; 82. Top rod; 821. Pressure block; 822. Support plate; 823. Pressure column; 83. Limiting block; 831. Placement groove; 832. Stop block; 84. Clamping part; 841. Connecting plate; 842. First spring; 843. Second spring; 844. Elastic clamping block. Detailed Implementation

[0040] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0041] Example 1: This example specifically illustrates the basic structure and working principle of an automotive seat slide rail retainer and steel ball assembly device, specifically:

[0042] like Figures 1-3 As shown, this application provides an assembly device for a car seat slide rail retainer and steel ball, including an assembly mechanism 1, which is used to load the manufactured steel balls into the retainer of the car seat slide rail.

[0043] The assembly mechanism 1 includes a feeding assembly 2, which includes a connecting frame 21 fixedly installed on the ground. The connecting frame 21 is located on the left side of the entire device and a hopper 22 is fixedly installed on the top.

[0044] The hopper 22 is a cylindrical structure with an opening at the top. It has a storage cavity inside for storing steel balls to be assembled in batches. At the same time, two sets of discharge through holes 23 are opened on one side of the bottom plate of the hopper 22. The discharge through holes 23 vertically penetrate the bottom of the hopper 22, and their diameter is slightly larger than the diameter of a single steel ball, so that only a single steel ball can pass through vertically, realizing the restriction of single ball discharge at a time and ensuring stable discharge order.

[0045] Meanwhile, a rotary motor 26 is fixedly installed at the top of the center of the inner cavity of the hopper 22. The output end of the rotary motor 26 passes through the hopper 22 and is fixedly equipped with a rotating shaft 24. A sweeping paddle 25 is fixedly installed at the bottom of the rotating shaft 24. The sweeping paddle 25 is close to the bottom plate of the hopper 22 and can rotate under the drive of the rotary motor 26. This causes the steel balls in the hopper 22 to be driven and rotated by the sweeping paddle 25, thereby continuously moving towards the discharge hole 23. This allows the steel balls to fall into the discharge hole 23 one by one, preventing the steel balls from accumulating and getting stuck in the hopper 22 and unable to be discharged normally.

[0046] Meanwhile, a first cylinder 27 is fixedly installed on one side of the bottom of the hopper 22. A push block 28 is fixedly installed on the output end of the first cylinder 27. The push block 28 is slidably installed at the bottom of the hopper 22, and the top surface of the push block 28 is in contact with the lower surface of the bottom plate of the hopper 22. Two sets of material receiving holes 29 are provided on its top. The diameter of the material receiving holes 29 is the same as that of the discharge through hole 23, which can receive the steel balls falling from the discharge through hole 23.

[0047] Furthermore, when the first cylinder 27 retracts and the pusher block 28 is in its initial state, the material receiving hole 29 and the discharge through hole 23 are aligned vertically and horizontally. The steel ball can enter the material receiving hole 29 through the discharge through hole 23. When the output end of the first cylinder 27 extends, the material receiving hole 29 will move to the preset discharge position with the pusher block 28. At this time, the material receiving hole 29 is aligned vertically with the gripping station described below, and the steel ball can fall from the material receiving hole 29 into the gripping station to complete the material distribution, effectively avoiding the simultaneous discharge of multiple steel balls and affecting subsequent assembly.

[0048] like Figure 3 , Figure 6 As shown, a placement frame 211 is also provided on one side of the feeding component 2. A picking robot 3 is provided on the top of the placement frame 211. The picking robot 3 includes a rotating seat 31, which is fixedly installed on the top of the placement frame 211. A fixed frame 32 is rotatably connected to the rotating seat 31. A second cylinder 33 is provided on one side of the fixed frame 32. A fixed block 34 is fixedly installed at the bottom output end of the second cylinder 33. Two sets of suction components 4 are detachably installed inside the fixed block 34. The suction components 4 include a suction pipe 41 and a suction hole is provided at the bottom of the suction pipe 41. The suction hole is used to adsorb steel balls. A negative pressure pipe 42 is provided on one side of the suction pipe 41. The negative pressure pipe 42 is connected to an external negative pressure device, so that the steel balls can be stably adsorbed inside the suction pipe 41 by the negative pressure generated by the negative pressure pipe 42.

[0049] During material removal, the suction component 4 moves to the top of the material receiving hole 29 under the drive of the rotating seat 31. Then, the second cylinder 33 drives the suction component 4 to extend downward, so that the bottom end of the suction pipe 41 is close to the steel ball in the material receiving hole 29. Then, the negative pressure device is activated, and a negative pressure is formed at the suction hole to stably adsorb the steel ball. Then, the second cylinder 33 retracts and drives the suction component 4 with the adsorbed steel ball to move upward, thereby completing the material removal of the steel ball.

[0050] like Figures 4-5 As shown, a rotating assembly 5 is also provided on one side of the material handling robot 3. The rotating assembly 5 includes a drive base 52 and a turntable 51. The drive base 52 is fixedly installed on the top surface of the equipment frame. The turntable 51 is horizontally rotated and mounted on the top of the drive base 52. The drive motor inside the drive base 52 drives the turntable 51 to rotate intermittently.

[0051] Four workstations are evenly arranged on the top surface of the turntable 51 along the circumference, and each workstation is equipped with a fixing component 6. The fixing component 6 includes a fixture base 61, which is fastened to the top surface of the turntable 51 by bolts. The top surface of the fixture base 61 is provided with a positioning groove 62 along the length direction. The size of the positioning groove 62 is adapted to the size of the retainer to be assembled, and is used to support the retainer of the car seat slide rail. Multiple sets of clamping cylinders 63 are fixedly installed on the fixture base 61, and a clamping block 64 is fixedly connected to the output end of each set of clamping cylinders 63.

[0052] When the retainer is placed into the positioning groove 62, the clamping cylinders 63 at both ends extend synchronously, causing the clamping blocks 64 to press against the end faces of both ends of the retainer. At this time, the other end of the retainer will be held against the positioning groove 62 and fixed by the clamping cylinder 63.

[0053] It should be noted that the retainer is provided with pockets that are compatible with the steel balls, so that the steel balls can be successively adsorbed and placed in the pockets by the suction component 4 through the rotation of the material handling robot 3 until all the pockets on a single retainer are filled with steel balls. Then the turntable 51 rotates 90° clockwise to facilitate the unloading operation of the next station.

[0054] In this embodiment, the four workstations are arranged in a clockwise direction ( Figure 4 The four stations are defined as the feeding station for inserting steel balls into the cage pocket, the pressing station for pressing steel balls into the cage pocket, the cage inspection station, and the cage unloading station. The four stations rotate synchronously with the turntable 51 to realize multi-process parallel operation.

[0055] A pressing assembly 7 is provided on the turntable 51 corresponding to the pressing station. The pressing assembly 7 includes a gantry frame 71, which is located on the outside of the placement frame 211. A pressing cylinder 72 is fixedly installed vertically downward on the top of the gantry frame 71. The output end of the pressing cylinder 72 is fixedly connected to a mounting plate 73. Two sets of guide columns 74 are vertically installed on the top surface of the mounting plate 73. The guide columns 74 penetrate upward through the top of the gantry frame 71 and are slidably connected to the gantry frame 71 to guide the up and down movement of the mounting plate 73.

[0056] The bottom surface of the mounting plate 73 is fixedly mounted with a pressure head assembly 75, which contains multiple pressure heads. The number of pressure heads corresponds to the arrangement spacing and the pockets on the retainer. Each pressure head has a mounting surface at its bottom that is adapted to the surface of the steel ball, so that it can fit the surface of the steel ball and be quickly aligned during pressing.

[0057] Thus, during cage assembly, when the cage filled with steel balls rotates from the feeding station to the pressing station, the pressing cylinder 72 drives the mounting plate 73 and the pressing head assembly 75 to move downwards. Each pressing head is aligned with the pre-placed steel ball and applies a stable downward pressure to press the steel ball into the corresponding pocket of the cage to complete the assembly.

[0058] After a set of cages is pressed in, the drive base 52 drives the turntable 51 to rotate 90° clockwise, so that the pressed cages are rotated to the inspection station.

[0059] Furthermore, a visual inspection mechanism (not shown in the figure) is set up at the inspection station. This visual inspection mechanism is used to inspect the finished product of the cage after the pressing process, and to check whether the steel balls in all pockets are assembled in place, and whether there are any missing, stuck or skewed parts.

[0060] Then turntable 51 rotates 90° clockwise again to rotate the qualified retainer to the unloading station for subsequent unloading operations.

[0061] Example 2: During the discharge process of the suction pipe 41, due to the certain height difference between the steel ball and the pocket, although the steel ball and the pocket are aligned in the vertical direction, the steel ball has high rolling properties. Therefore, when the steel ball falls freely onto the pocket, it may roll, causing a slight offset between the steel ball and the pocket.

[0062] However, if the suction pipe 41 is too close to the pocket when placing the steel ball, the suction pipe 41 may make a slight collision with the steel ball during the process of placing and leaving it. This may cause the steel ball to roll into the adjacent pocket or roll away from the retainer, thus making it impossible to press the steel ball in place. To solve the above problem, improvements are made to the suction assembly 4, specifically:

[0063] like Figures 6-11 As shown, a material storage assembly 8 is provided inside the suction pipe 41. The material storage assembly 8 includes a third cylinder 81 fixedly installed at the top of the suction pipe 41. The output end of the third cylinder 81 passes through the suction pipe 41 and is fixedly installed with a push rod 82. At the same time, a cylindrical pressure block 821 is fixedly installed at the end of the push rod 82 away from the third cylinder 81. So when the third cylinder 81 extends or retracts, it can drive the pressure block 821 to move vertically back and forth. In the initial state, the pressure block 821 is located at the bottom end of the suction pipe 41.

[0064] In this embodiment, the negative pressure pipe 42 is located at the upper end of the suction pipe 41, and the diameter of the pressure block 821 is smaller than the inner diameter of the suction pipe 41. Thus, when the negative pressure is generated inside the suction pipe 41 through the negative pressure pipe 42, it can directly act on the bottom opening of the suction pipe 41 through the gap between the pressure block 821 and the suction pipe 41.

[0065] A recess adapted to the size of the steel ball is provided at the bottom of the pressure block 821, and the inner diameter of the suction pipe 41 is larger than the diameter of the steel ball. When there is negative pressure at the bottom opening of the suction pipe 41, the steel ball will be sucked into the interior of the suction pipe 41, so that the top of the steel ball will be stuck in the recess at the bottom of the pressure block 821 and stably limited.

[0066] Meanwhile, a limiting block 83 is fixedly installed at the bottom of the suction pipe 41. The limiting block 83 has a limiting arc groove on its inner side. The limiting arc groove has an inner side wall close to the center and an outer side wall away from the center. At the same time, a clamping part 84 is vertically slidably installed in the limiting arc groove. The clamping part 84 includes a connecting plate 841. The connecting plate 841 is slidably installed inside the suction pipe 41. A through hole is opened at its center. The size of the through hole is larger than the outer diameter of the pressure block 821 so that the pressure block 821 can pass through.

[0067] Meanwhile, multiple sets of elastic clamping blocks 844 arranged circumferentially are fixedly installed at the bottom of the connecting plate 841. When no external force is applied, the bottoms of the multiple sets of elastic clamping blocks 844 approach each other and form a clamping hole with a diameter smaller than that of the steel ball. Since the tops of the multiple sets of elastic clamping blocks 844 are fixed to the connecting plate 841, an inner ring with the same diameter as the through hole is formed at the top, thereby forming a conical clamping space inside the multiple sets of elastic clamping blocks 844.

[0068] It should be noted that a gap is provided between adjacent elastic clamping blocks 844, and a stop block 832 adapted to the size of the gap is provided in the limiting arc groove to facilitate the avoidance of the elastic clamping blocks 844.

[0069] like Figures 7-11 As shown, a circular support plate 822 is also provided on the upper outer side of the pressure block 821. Two sets of pressure columns 823 are extended from the bottom of the support plate 822. At the same time, a first spring 842 is fixedly installed on the top of the connecting plate 841. The top of the first spring 842 is fixedly installed with the bottom of the pressure column 823. The first spring 842 is in a free state in the initial state. When the negative pressure pipe 42 starts to work, the negative pressure will act on the bottom opening of the suction pipe 41 through the first gap formed between the support plate 822 and the inner wall of the suction pipe 41, so as to achieve the adsorption and fixation of the steel ball.

[0070] Understandably, in the initial state, the pressure block 821 is a cylindrical structure and extends into the through hole of the connecting plate 841. The outer diameter of the connecting plate 841 is smaller than the inner diameter of the through hole, thus forming a second gap between the connecting plate 841 and the two. This gap is suitable for the passage of negative pressure, so that the first gap and the second gap are connected and form an airflow channel, realizing the rapid adsorption of the steel ball by the suction pipe 41.

[0071] Meanwhile, two sets of second springs 843 are fixedly installed at the bottom of the connecting plate 841, and two sets of placement slots 831 are opened at the top of the limiting block 83. The bottom of the second spring 843 is fixedly installed in the placement slot 831. The strength of the second spring 843 is much greater than that of the first spring 842, so that when the first spring 842 is under force and in a contracted state, the second spring 843 is not affected.

[0072] In the initial state, the bottom of the pressure block 821 is located at the upper end of the clamping space formed by multiple sets of elastic clamping blocks 844, and the bottom of the elastic clamping block 844 is located inside the limiting arc groove. At this time, the inner wall of the elastic clamping block 844 is in contact with the inner wall of the limiting arc groove, so that the bottom of the elastic clamping block 844 is in an open state. Since the inner wall diameter of the limiting arc groove is fixed, the bottom clamping hole formed by multiple sets of elastic clamping blocks 844 is the largest and its size is larger than the diameter of the steel ball, allowing the steel ball to freely enter and exit the clamping space.

[0073] When it is necessary to pick up the steel ball, the entire suction pipe 41 moves downward to the position above the top of the steel ball above the material receiving hole 29. Then the negative pressure is activated, and the negative pressure acts on the steel ball through the airflow channel, so that the steel ball enters the clamping space through the open clamping hole and is stuck in the recess at the bottom of the pressure block 821.

[0074] Subsequently, the third cylinder 81 drives the push rod 82 to extend downward, causing the pressure block 821 to move down synchronously and penetrate into the clamping space. At this time, the pressure column 823 first compresses the first spring 842. As the push rod 82 continues to move down, the elastic force of the first spring 842 is transmitted to the connecting plate 841, compressing the more rigid second spring 843, and driving the connecting plate 841 to move towards the bottom of the suction pipe 41.

[0075] As the connecting plate 841 moves downward, it drives the clamping part 84 to move downward as a whole. When the clamping part 84 moves downward, the elastic clamping block 844 extends downward along the inner wall of the limiting arc groove. Since the elastic clamping block 844 is elastic and the inner wall diameter of the limiting arc groove is fixed, the part of the elastic clamping block 844 extending out of the bottom of the limiting arc groove will gradually retract inward during the downward movement, so that the diameter of the clamping hole gradually shrinks as it moves downward.

[0076] When the elastic clamping block 844 is fully extended to the lowest position, the diameter of the clamping hole shrinks to the minimum, and the minimum size is smaller than the diameter of the steel ball. The steel ball entering the clamping space will be supported by the bottom of the elastic clamping block 844. Together with the recess of the upper pressure block 821, the two ends of the steel ball are restricted to prevent the steel ball from shaking and shifting inside the air extraction pipe 41.

[0077] When the preset discharge position is reached, the third cylinder 81 drives the push rod 82 to extend downward again, and the pressure block 821 pushes the steel ball downward directly. Since the bottom of the elastic clamping block 844 is in a contracted state at this time, the downward movement of the steel ball will squeeze the bottom of the elastic clamping block 844, thereby causing the elastic clamping block 844 to expand outward, and finally make the outer wall of the elastic clamping block 844 fit with the outer wall of the limiting arc groove. At this time, the clamping hole formed by the bottom of the multiple sets of elastic clamping blocks 844 is larger than the diameter of the steel ball. Thus, under the push of the pressure block 821, the steel ball is pushed out from the bottom of the contracted clamping hole and falls into the pocket opening of the lower retainer.

[0078] Throughout the feeding process, the steel ball is always pushed by the pressure block 821 and limited by multiple sets of elastic clamping blocks 844, so there will be no lateral rolling deviation. The pushing action is stable and controllable, which further improves the feeding accuracy.

[0079] In summary, by incorporating the material storage component 8, this device ensures that the steel balls remain in a stable, limited position throughout the entire process from adsorption and conveying to discharge, preventing positional shifts due to airflow fluctuations or equipment vibrations. This allows for precise pushing of the steel balls to the opening of the retainer pocket, enhancing the device's practicality.

[0080] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assembly device for automotive seat slide rail retainers and steel balls, characterized in that: include: A connecting frame (21) is provided with a placement rack (211) on one side. The feeding assembly (2) has a hopper (22) and a pusher (28) for discharging material is provided at the bottom of the hopper (22). The rotating assembly (5) includes a drive base (52) and a turntable (51). The top surface of the turntable (51) is provided with multiple fixing assemblies (6) with retainers attached. One side of the turntable (51) is provided with a pressing assembly (7) for pressing steel balls into the retainer. The material handling robot (3) is located between the feeding assembly (2) and the rotating assembly (5). The material handling robot (3) is equipped with an air extraction assembly (4). The air extraction assembly (4) includes an air extraction pipe (41). An air extraction hole is provided at the bottom of the air extraction pipe (41). A negative pressure pipe (42) is provided on one side of the air extraction pipe (41). The material storage assembly (8) is located inside the suction pipe (41) and includes a third cylinder (81). The third cylinder (81) is installed at the top of the suction pipe (41). The output end of the third cylinder (81) passes through the suction pipe (41) and is fixedly mounted with a push rod (82). A pressure block (821) is fixedly mounted at the end of the push rod (82) away from the third cylinder (81). A limiting block (83) is provided at the bottom of the suction pipe (41). The bottom end of the suction pipe (41) is equipped with a limiting block (83). A limiting arc groove is provided on the inner side of the limiting block (83), and a stop block (832) is provided in the limiting arc groove. The clamping part (84) is slidably assembled in the limiting arc groove. The clamping part (84) includes a connecting plate (841) and at least three sets of elastic clamping blocks (844). The connecting plate (841) is slidably installed inside the air extraction pipe (41), and a through hole adapted to the size of the steel ball is opened at its center. A connecting plate (841) is slidably installed inside the suction pipe (41). Multiple sets of elastic clamping blocks (844) are installed at the bottom of the connecting plate (841). A gap adapted to the size of the stop block (832) is left between the multiple sets of elastic clamping blocks (844). A clamping hole is formed at the bottom of the multiple sets of elastic clamping blocks (844), and the size of the clamping hole is smaller than the size of the steel ball.

2. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 1, characterized in that: The outer side of the pressure block (821) is also provided with a support plate (822), and the bottom of the support plate (822) is provided with two sets of pressure columns (823). The top of the connecting plate (841) is equipped with a first spring (842), and the top of the first spring (842) is adapted to contact the support plate (822). The bottom of the connecting plate (841) is equipped with two sets of second springs (843), the rigidity of the second springs (843) is greater than that of the first springs (842), and the top of the limiting block (83) is provided with two sets of placement slots (831), the bottom of the second springs (843) is installed inside the placement slots (831).

3. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 2, characterized in that: The material handling robot (3) includes a rotating seat (31), which is mounted on the top of the placement frame (211). A fixed frame (32) is mounted on the rotating seat (31). A second cylinder (33) is provided on one side of the fixed frame (32). The output end of the second cylinder (33) is oriented toward the rotating seat (31). A fixed block (34) is mounted on the bottom of the second cylinder (33). The air extraction component (4) is installed inside the fixed block (34).

4. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 3, characterized in that: The rotating assembly (5) includes a drive base (52) and a turntable (51). The drive base (52) is mounted on the top surface of the placement rack (211), and the turntable (51) is horizontally rotatably mounted on the top of the drive base (52).

5. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 1, characterized in that: Each of the fixing components (6) includes a fixture base (61), which is fastened to the top surface of the turntable (51) by bolts. The top surface of the fixture base (61) is provided with a positioning groove (62) along the length direction. Multiple sets of clamping cylinders (63) are installed on the fixture base (61), and the output end of each clamping cylinder (63) is connected to a clamping block (64).

6. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 1, characterized in that: A pressing assembly (7) is provided on one side of the turntable (51), the pressing assembly (7) including a gantry frame (71), the gantry frame (71) being located on the outside of the placement frame (211).

7. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 6, characterized in that: A pressing cylinder (72) is vertically installed downward on the top of the gantry (71). The output end of the pressing cylinder (72) is connected to a mounting plate (73). Two sets of guide columns (74) are vertically installed on the top surface of the mounting plate (73). The guide columns (74) extend upward through the top of the gantry (71). A pressing head assembly (75) is installed on the bottom surface of the mounting plate (73). The pressing head assembly (75) contains multiple pressing heads.

8. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 1, characterized in that: The bottom of the pressure block (821) has a recess that matches the size of the steel ball.

9. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 1, characterized in that: Two sets of discharge through holes (23) are provided on one side of the bottom plate of the hopper (22). The discharge through holes (23) vertically penetrate the bottom of the hopper (22), and the diameter of the discharge through holes (23) is larger than the diameter of a single steel ball.

10. The automotive seat slide rail retainer and steel ball assembly equipment according to claim 9, characterized in that: A rotary motor (26) is installed at the top of the center of the inner cavity of the hopper (22). The output end of the rotary motor (26) passes through the hopper (22) and is equipped with a rotating shaft (24). A material sweeping paddle (25) is installed at the bottom of the rotating shaft (24).

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