Steel ball pressing equipment of air suspension controller valve body

By achieving the linkage of the press rod and the steel ball introduction assembly in the steel ball pressing equipment, the problem of unstable placement of the steel ball during the pressing process is solved, and the pressing effect and quality are improved.

CN119426954AActive Publication Date: 2025-02-14浙江金麦特自动化系统有限公司
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Patent Information

Application Number
CN202411876123.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-02-14
Estimated Expiration
2044-12-19

AI Technical Summary

Technical Problem

It is difficult for existing steel ball pressing equipment to achieve stable steel ball pressing during the pressing process, resulting in unsatisfactory pressing effect and quality.

Method used

By achieving linkage cooperation between the press rod and the steel ball introduction assembly, the steel ball is ensured to be placed stably in the hole when pressing down, and then performing top-contact pressure installation, the steel ball is stabilized.

Benefits of technology

The effect and quality of steel ball pressing are improved, ensuring that the steel ball can be placed stably in the hole, and improving the reliability of the overall pressing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses steel ball pressing equipment for an air suspension controller valve body, which comprises a workbench (1), a conveying line (2) penetrating through the whole workbench (1) is arranged on the workbench (1), and a transfer frame (3) for placing the controller valve body is arranged on a conveying belt of the conveying line (2); a plurality of press-fitting stations (4) are arranged on the workbench (1), and frame body lifting and positioning mechanisms (5) corresponding to the press-fitting stations (4) are arranged on the conveying line (2); a mechanical arm (6) used for feeding the controller valve body is arranged on the workbench (1) and located between the press-fitting station (4) and the conveying line (2). Through linkage cooperation of the pressing rod and the steel ball guiding-in assembly, stable press fitting of the steel balls is achieved, and the press fitting effect and the press fitting quality of the steel balls are improved.
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Description

Technical Field

[0001] The invention relates to the field of air spring controller assembly equipment, and in particular to a steel ball pressing device for an air suspension controller valve body. Background Art

[0002] The air suspension system uses air springs as elastic elements and utilizes the compressibility of gas to achieve its elastic effect. The air pressure of the compressed gas can be automatically adjusted as the load and road conditions change. In the entire system, the controller is a very important electrical component. The controller includes a valve body. When the valve body is processed, redundant holes will inevitably be generated, and these redundant holes need to be blocked by steel balls. Existing steel ball pressing equipment, such as the Chinese utility model patent with announcement number CN220388556U, discloses a steel ball automatic riveting head, including: a driving component; a limiting component, which is connected to the driving component, and a pressing head component, which is connected to the limiting component. The driving component is extended to drive the pressing head component to move vertically downward to press the steel ball. The pressing head component is provided with a spring. After the pressing is completed, the driving component contracts and then extends to switch to the riveting mode and drive the limiting spring of the limiting component. The driving component continues to drive the pressing head component to move downward to rivet the steel ball. In the steel ball pressing mechanism, the pressing rod needs to overcome the positioning bead when pushing the steel ball downward, the positioning bead retracts, and the steel ball falls, but at this time the steel ball is not placed stably, and the pressing rod is pressed down immediately, which makes the effect and quality of the steel ball pressing unsatisfactory. Summary of the invention

[0003] The purpose of the present invention is to provide a steel ball pressing device for an air suspension controller valve body. The present invention realizes stable press-fitting of the steel ball through the linkage cooperation of the pressing rod and the steel ball introduction assembly, thereby improving the effect and quality of the press-fitting of the steel ball.

[0004] The technical solution of the present invention: a steel ball pressing device for an air suspension controller valve body comprises a workbench, the workbench is provided with a conveyor line running through the entire workbench, and a transfer frame for placing the controller valve body is provided on the conveyor belt of the conveyor line; the workbench is provided with a plurality of pressing stations, and a frame lifting and positioning mechanism is provided on the conveyor line and corresponding to the pressing stations; a mechanical arm for loading the controller valve body is provided on the workbench and located between the pressing stations and the conveyor line; the pressing station comprises a station frame arranged on the workbench, a pressing base is provided at the bottom of the station frame, and a clamping assembly for fixing the controller valve body is provided on the front side of the pressing base; a pressing power part is provided at the upper end of the station frame, a pressing top seat is connected to the movable end of the pressing power part, and a pre-top seat is connected to the end of the pressing top seat via an elastic part, a downward pressing channel is provided in the pre-top seat, and a pressing rod extending into the downward pressing channel is provided at the lower part of the pressing top seat; a steel ball introduction assembly for controlling the steel ball to enter the downward pressing channel is provided at the front end of the pre-top seat.

[0005] In the above-mentioned steel ball pressing device for the air suspension controller valve body, the transfer frame includes a disc body, the disc body is provided with mutually symmetrical ribs, the ribs are provided with a plurality of support columns, and a circular groove is provided on the disc body and between the ribs on both sides.

[0006] In the aforementioned steel ball pressing device for the valve body of the air suspension controller, positioning holes are arranged diagonally on the bottom of the disc.

[0007] In the aforementioned steel ball pressing equipment for the air suspension controller valve body, the frame lifting and positioning mechanism includes a cylinder fixing plate arranged on the workbench, a lifting cylinder is provided on the cylinder fixing plate, the protruding end of the lifting cylinder is connected to a lifting frame, and positioning columns matching the positioning holes are diagonally arranged on the lifting frame. A movable limit frame is provided on the workbench and on both sides of the conveyor line.

[0008] In the aforementioned steel ball pressing device for the valve body of the air suspension controller, a plurality of fixing sleeves are provided on the cylinder fixing plate and around the lifting cylinder, and a plurality of guide columns matching with the fixing sleeves are provided on the lifting frame.

[0009] In the aforementioned steel ball pressing equipment for the air suspension controller valve body, a positioning servo is provided in the conveyor line and at a position corresponding to the pressing station, and the protruding end of the positioning servo has a baffle for limiting the disc body.

[0010] In the aforementioned steel ball pressing device for the air suspension controller valve body, the clamping assembly includes a movable plate arranged on the front side of the pressing base, a column is provided on the inner side of the movable plate, the column is slidably connected to the pressing base, and a connecting piece is provided on the front side of the pressing base; a locking cylinder is provided on the outer side of the movable plate, and the protruding end of the locking cylinder is connected to the connecting piece; the inner side of the movable plate is connected to a locking plate via a slider assembly, a positioning block is provided on the inner side of the movable plate, and the end of the locking plate is connected to the positioning block via an elastic piece.

[0011] In the aforementioned steel ball pressing device of the air suspension controller valve body, the upper end of the pre-top seat is provided with a positioning rod, the positioning rod is passed through the pressing top seat, a pre-stressing spring is sleeved on the positioning rod, the upper end of the pre-stressing spring is connected to the pressing top seat, and the lower end of the pre-stressing spring is connected to the upper end of the pre-top seat.

[0012] In the aforementioned steel ball pressing device for the air suspension controller valve body, a guide seat corresponding to the downward pressure channel is provided in the pre-top seat, and a feeding port corresponding to the introduction end of the steel ball introduction assembly is provided on one side of the guide seat; a chassis seat corresponding to the guide seat is provided at the lower part of the pre-top seat; and the pressure rod extends into the downward pressure channel.

[0013] In the aforementioned steel ball pressing device for the air suspension controller valve body, the steel ball introduction assembly includes a feed cylinder arranged on the rear side of the pressing top seat, the protruding end of the feed cylinder is connected to a switch plate, the end of the switch plate is slidably arranged in the pre-top seat, and the end of the switch plate has a through groove corresponding to the feed port; the feed port of the guide seat is provided with ribs for blocking the steel ball and matching with the through groove; the front side of the pre-top seat is provided with a material pipe seat, and a steel ball material pipe is provided in the material pipe seat, and the inner end of the steel ball material pipe matches with the through groove.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. In the present invention, the controller valve body is placed on the transfer rack, the transfer rack is sent to the pressing station through the conveyor line, the frame lifting and positioning mechanism drives the transfer rack to be lifted, the transfer rack is separated from the conveying surface of the conveyor line, the transfer rack is fixed at the corresponding pressing station, the mechanical arm moves the valve body from the transfer rack to the pressing base, the clamping assembly fixes the valve body, the pressing top seat is driven by the pressing power part to move down to the valve body, the pre-top seat contacts the valve body, the steel ball introduction assembly is started, the steel ball is sent to the downward pressure channel, and enters the hole of the valve body, the pressing power part continues to work, the pressing top seat continues to move downward, the pressure rod touches the steel ball to enter the hole, and the pressing of the steel ball is completed; through the linkage cooperation of the pressure rod and the steel ball introduction assembly, after the steel ball is stably placed in the hole, the pressure rod touches the steel ball again for pressing, so as to achieve stable pressing of the steel ball and improve the pressing effect and pressing quality of the steel ball.

[0016] 2. The frame lifting and positioning mechanism can accurately position the transfer frame at the corresponding press-fitting station, making it convenient for the robotic arm to grab the controller valve body.

[0017] 3. After the valve body is placed on the press-fit base, the clamping assembly is close to the valve body, and the upper end of the clamping plate is close to the valve body, so that the clamping assembly can clamp the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the cooperation between the transfer rack and the frame lifting and positioning mechanism;

[0020] Figure 3 is a schematic diagram of a transfer rack;

[0021] Figure 4 A schematic diagram of a frame lifting and positioning mechanism;

[0022] Figure 5 is a schematic diagram of a clamping assembly;

[0023] Figure 6 is a schematic diagram of a clamping plate;

[0024] Figure 7 This is a schematic diagram of the steel ball introduction assembly;

[0025] Figure 8 A schematic diagram of the switch board.

[0026] Explanation of the marks in the attached drawings: 1- workbench, 2- conveyor line, 3- transfer rack, 4- pressing station, 5- frame lifting and positioning mechanism, 6- mechanical arm, 7- station rack, 8- pressing base, 9- clamping assembly, 10- pressing power part, 11- pressing top seat, 12- pre-top seat, 13- pressing channel, 14- pressing rod, 15- steel ball introduction assembly, 16- positioning steering gear, 17- baffle, 18- positioning rod, 19- pre-compression spring, 20- guide seat, 21- feeding port, 22- chassis seat, 31- Disk body, 32-rib plate, 33-support column, 34-circular groove, 35-positioning hole, 51-cylinder fixing plate, 52-lifting cylinder, 53-lifting frame, 54-positioning column, 55-fixed sleeve, 56-guide column, 57-movable limit frame, 91-movable plate, 92-column, 93-connecting piece, 94-clamping cylinder, 95-clamping plate, 96-positioning block, 151-feeding cylinder, 152-switch plate, 153-through groove, 154-rib, 155-material pipe seat, 156-steel ball material pipe. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0028] Embodiment: A steel ball pressing device for an air suspension controller valve body comprises a workbench 1, on which a conveyor line 2 running through the entire workbench 1 is installed, as shown in the attached Figure 1 As shown, a transfer rack 3 for placing the controller valve body is installed on the conveyor belt of the conveyor line 2; the transfer rack 3 includes a tray 31, as shown in the attached Figure 3 As shown, the plate 31 is provided with symmetrical ribs 32, and the ribs 32 are provided with a plurality of support columns 33. The plate 31 is provided with a circular groove 34 between the ribs 32 on both sides. The valve body is mounted on the ribs on both sides, and the bottom end of the valve body is stuck in the circular groove. The support columns support the side of the valve body to avoid interference caused by the protruding parts on the valve body, so as to achieve the stability of the valve body. The bottom of the plate 31 is provided with positioning holes 35 arranged diagonally. The workbench 1 is provided with a plurality of press-fitting stations 4, and the conveyor line 2 is provided with a frame lifting and positioning mechanism 5 for positioning the transfer frame 3 corresponding to the press-fitting stations 4, as shown in the attached figure. Figure 2As shown; a mechanical arm 6 for loading the controller valve body is installed on the workbench 1 and between the press-fitting station 4 and the conveyor line 2. The mechanical arm mainly realizes the loading of the valve body and moves the valve body from the transfer rack to the press-fitting station; the frame lifting and positioning mechanism 5 includes a cylinder fixing plate 51 arranged on the workbench 1, as shown in the attached Figure 4 As shown, a lifting cylinder 52 is provided on the cylinder fixing plate 51, and a lifting frame 53 is connected to the protruding end of the lifting cylinder 52. Positioning columns 54 matching the positioning holes 35 are arranged diagonally on the lifting frame 53. A movable limit frame 57 is installed on the workbench 1 and on both sides of the conveyor line 2. The lifting cylinder is started to drive the lifting frame to move up until the transfer frame touches the movable limit frame. The positioning column is stuck in the positioning hole at the bottom of the transfer frame to ensure that the lifting frame can stably lift the transfer frame. A plurality of fixed sleeves 55 are provided on the cylinder fixing plate 51 and around the lifting cylinder 52, and a plurality of guide columns 56 matching the fixed sleeves 55 are installed on the lifting frame 53. Through the cooperation of the guide column and the fixed sleeve, the stable operation of the lifting frame can be achieved. A positioning servo 16 is provided in the conveyor line 2 and at the position corresponding to the pressing station 4. The protruding end of the positioning servo 16 has a baffle 17 for limiting the disc 31. The conveyor line is always in operation. After the transfer rack moves to the pressing station, the positioning servo drives the baffle to rotate, and the transfer rack is blocked by the baffle and cannot move forward. Then the frame lifting and positioning mechanism operates to lift the transfer rack.

[0029] The press-fitting station 4 includes a station frame 7 arranged on the workbench 1, a press-fitting base 8 is installed at the bottom of the station frame 7, and a clamping assembly 9 for fixing the controller valve body is installed on the front side of the press-fitting base 8; the clamping assembly 9 includes a movable plate 91 arranged on the front side of the press-fitting base 8, as shown in the attached Figure 5 As shown, the inner side of the movable plate 91 has a column 92, and the column 92 is slidably connected to the pressing base 8. The front side of the pressing base 8 is provided with a connecting piece 93; the outer side of the movable plate 91 is provided with a clamping cylinder 94, as shown in the attached Figure 6 As shown, the protruding end of the locking cylinder 94 is connected to the connecting piece 93; the inner side of the movable plate 91 is connected with a locking plate 95 via a slider assembly, and a positioning block 96 is provided on the inner side of the movable plate 91. The end of the locking plate 95 is connected with the positioning block 96 via an elastic member. The mechanical arm sends the valve body to the pressing base. At this time, the mechanical arm does not withdraw. The locking cylinder drives the movable plate to move toward the valve body. The locking plate on the upper end of the movable plate is in an elastic active state. The upper end of the locking plate clamps the valve body. There are holes all around the valve body. The mechanical arm drives the valve body to change direction, and the locking cylinder moves outward, the locking plate is separated from the valve body, and the valve body changes to the other side.

[0030] The upper end of the work station frame 7 has a pressing power part 10, which is mainly used to realize the rotation of the screw through the motor through the belt drive to realize the lifting and lowering of the moving sleeve. The movable end of the pressing power part 10 is connected to the pressing top seat 11, and the moving sleeve drives the pressing top seat to lift and lower. The end of the pressing top seat 11 is connected to the pre-top seat 12 through an elastic member. The pre-top seat 12 has a downward pressure channel 13, and the lower part of the pressing top seat 11 is provided with a pressure rod 14 extending into the downward pressure channel 13; the front end of the pre-top seat 12 has a steel ball introduction component 15 for controlling the steel ball to enter the downward pressure channel 13. The upper end of the pre-top seat 12 has a positioning rod 18, which is inserted into the pressing top seat 11, and a pre-compression spring 19 is sleeved on the positioning rod 18. The upper end of the pre-top seat 12 is connected to the pressing top seat 11, and the lower end of the pre-compression spring 19 is connected to the upper end of the pre-top seat 12. The pre-top seat will contact the valve body first, and the pre-compression spring will make the pre-top seat and the surface of the valve body stick tightly. The pre-top seat 12 is provided with a guide seat 20 corresponding to the downward pressure channel 13, and one side of the guide seat 20 is provided with an inlet 21 corresponding to the introduction end of the steel ball introduction assembly 15; the lower part of the pre-top seat 12 is provided with a chassis seat 22 corresponding to the guide seat 20; the pressure rod 14 extends into the downward pressure channel 13, and when the pre-top seat contacts the surface of the valve body, the chassis seat contacts the surface of the valve body, and the discharge hole on the chassis seat is aligned with the hole on the surface of the valve body. After the steel ball enters the guide seat, it falls through the chassis seat and enters the hole of the valve body.

[0031] The steel ball introduction assembly 15 includes a feeding cylinder 151 arranged at the rear side of the pressing top seat 11, as shown in the attached Figure 7 As shown, the extended end of the feed cylinder 151 is connected to a switch plate 152. Figure 8 As shown, the end of the switch plate 152 is slidably arranged in the pre-top seat 12, and the end of the switch plate 152 has a through groove 153 corresponding to the feed port 21; the feed port of the guide seat 20 is provided with a rib 154 for blocking the steel ball and matching the through groove 153; the front side of the pre-top seat 12 is provided with a material tube seat 155, and a steel ball material tube 156 is provided in the material tube seat 155, and the inner end of the steel ball material tube 156 matches the through groove 153; the steel balls are arranged in the steel ball material tube in sequence, and in the initial state, the ribs are stuck in the through groove to block the steel balls from entering the guide seat, the feed cylinder is started, driving the switch plate to move up, the through groove and the ribs are separated, and the steel ball enters the guide seat through the feed port, and then the feed cylinder is reset. After the steel ball enters the hole of the valve body, the pressing power part continues to move, driving the pressure rod to pass through the guide seat and the chassis seat, enter the hole of the valve body, and press the steel ball into the valve body.

[0032] The working principle of the present invention is as follows: the controller valve body is placed on the transfer rack, the transfer rack is sent to the pressing station through the conveyor line, the frame lifting and positioning mechanism drives the transfer rack to lift, the transfer rack is separated from the conveying surface of the conveyor line, the transfer rack is fixed at the corresponding pressing station, the robotic arm moves the valve body from the transfer rack to the pressing base, the clamping assembly fixes the valve body, the pressing top seat is driven by the pressing power part to move onto the valve body, the pre-top seat contacts the valve body, the steel ball introduction assembly is started, the steel ball is sent to the downward pressure channel, and enters the hole of the valve body, the pressing power part continues to work, the pressing top seat continues to move downward, the pressure rod touches the steel ball to enter the hole, and the pressing of the steel ball is completed; through the linkage cooperation of the pressure rod and the steel ball introduction assembly, after the steel ball is stably placed in the hole, the pressure rod touches the steel ball again for pressing, so as to achieve stable pressing of the steel ball and improve the pressing effect and pressing quality of the steel ball.

[0033] The above embodiments only express the implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. In this embodiment, the words "up", "down", "left", "right", "front" and "rear" only represent their relative positions and do not represent their absolute positions. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A steel ball pressing device for an air suspension controller valve body, comprising a workbench (1), characterized in that: The workbench (1) is provided with a conveyor line (2) running through the entire workbench (1), and a transfer rack (3) for placing a controller valve body is provided on the conveyor belt of the conveyor line (2); the workbench (1) has a plurality of press-fitting stations (4), and a frame lifting and positioning mechanism (5) for positioning the transfer rack (3) is provided on the conveyor line (2) and corresponding to the press-fitting stations (4); a mechanical arm (6) for loading the controller valve body is provided on the workbench (1) and located between the press-fitting station (4) and the conveyor line (2); the press-fitting station (4) includes a station rack (7) arranged on the workbench (1), and the station rack (7) A pressing base (8) is provided at the bottom, and a clamping assembly (9) for fixing the controller valve body is provided at the front side of the pressing base (8); a pressing power piece (10) is provided at the upper end of the workstation frame (7); a movable end of the pressing power piece (10) is connected to a pressing top seat (11); the end of the pressing top seat (11) is connected to a pre-top seat (12) via an elastic member; a downward pressure channel (13) is provided in the pre-top seat (12); a pressing rod (14) extending into the downward pressure channel (13) is provided at the lower part of the pressing top seat (11); and a steel ball introduction assembly (15) for controlling a steel ball to enter the downward pressure channel (13) is provided at the front end of the pre-top seat (12).

2. The steel ball pressing device for the valve body of the air suspension controller according to claim 1, characterized in that: The transfer rack (3) comprises a plate body (31), on which are disposed mutually symmetrical ribs (32), on which are disposed a plurality of support columns (33), and on which are disposed circular grooves (34) located between the ribs (32) on both sides.

3. The steel ball pressing device for the valve body of the air suspension controller according to claim 2, characterized in that: Positioning holes (35) are arranged diagonally on the bottom of the disk body (31).

4. The steel ball pressing device for the valve body of the air suspension controller according to claim 2, characterized in that: The frame lifting and positioning mechanism (5) includes a cylinder fixing plate (51) arranged on the workbench (1), a lifting cylinder (52) is provided on the cylinder fixing plate (51), the protruding end of the lifting cylinder (52) is connected to a lifting frame (53), and positioning columns (54) cooperating with positioning holes (35) are diagonally arranged on the lifting frame (53), and movable limit frames (57) are provided on the workbench (1) and on both sides of the conveyor line (2).

5. The steel ball pressing device for the valve body of the air suspension controller according to claim 4, characterized in that: A plurality of fixing sleeves (55) are provided on the cylinder fixing plate (51) and around the lifting cylinder (52), and a plurality of guide pillars (56) matching with the fixing sleeves (55) are provided on the lifting frame (53).

6. The steel ball pressing device for the valve body of the air suspension controller according to claim 2, characterized in that: A positioning steering gear (16) is provided in the conveying line (2) and at a position corresponding to the pressing station (4), and a protruding end of the positioning steering gear (16) has a baffle (17) for limiting the position of the disk body (31).

7. The steel ball pressing device for the valve body of the air suspension controller according to claim 2, characterized in that: The clamping assembly (9) comprises a movable plate (91) arranged on the front side of the pressing base (8), the inner side of the movable plate (91) is provided with a column (92), the column (92) is slidably connected to the pressing base (8), and the front side of the pressing base (8) is provided with a connecting piece (93); the outer side of the movable plate (91) is provided with a clamping cylinder (94), and the protruding end of the clamping cylinder (94) is connected to the connecting piece (93); the inner side of the movable plate (91) is connected with a clamping plate (95) via a slider assembly, and the inner side of the movable plate (91) is provided with a positioning block (96), and the end of the clamping plate (95) is connected to the positioning block (96) via an elastic member.

8. The steel ball pressing device for the valve body of the air suspension controller according to claim 1, characterized in that: The upper end of the pre-top seat (12) is provided with a positioning rod (18), the positioning rod (18) is inserted into the pressing top seat (11), a pre-compression spring (19) is sleeved on the positioning rod (18), the upper end of the pre-compression spring (19) is connected to the pressing top seat (11), and the lower end of the pre-compression spring (19) is connected to the upper end of the pre-top seat (12).

9. The steel ball pressing device for the valve body of the air suspension controller according to claim 1, characterized in that: The pre-top seat (12) is provided with a guide seat (20) corresponding to the downward pressing channel (13), and one side of the guide seat (20) is provided with an inlet (21) corresponding to the introduction end of the steel ball introduction component (15); the lower part of the pre-top seat (12) is provided with a chassis seat (22) corresponding to the guide seat (20); and the pressure rod (14) extends into the downward pressing channel (13).

10. The steel ball pressing device for the valve body of the air suspension controller according to claim 9, characterized in that: The steel ball introduction assembly (15) comprises a feed cylinder (151) arranged at the rear side of the pressing top seat (11); the protruding end of the feed cylinder (151) is connected to a switch plate (152); the end of the switch plate (152) is slidably arranged in the pre-top seat (12), and the end of the switch plate (152) has a through groove (153) corresponding to the feed port (21); the feed port of the guide seat (20) is provided with a rib (154) for blocking the steel ball and matching with the through groove (153); the front side of the pre-top seat (12) is provided with a material pipe seat (155), and a steel ball material pipe (156) is arranged in the material pipe seat (155), and the inner end of the steel ball material pipe (156) matches with the through groove (153).

Citation Information

Patent Citations

  • Automatic riveting head for steel balls

    CN220388556U

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    CN118635870A

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    CN210549440U