A ball pin detection device and a ball pin production line

Abstract

The application relates to the technical field of detection devices, in particular to a ball pin detection device which comprises a support table, a conveying belt and multiple detection units. First material guiding blocks and two support plates are fixedly connected to the support table. A detection disc is rotatably arranged on one of the support plates, and two cross rods are rotatably connected to the other support plate. The first material guiding blocks are connected with second material guiding blocks through first torsion springs. A hydraulic cylinder is installed on the support table. The driving end of the hydraulic cylinder is fixedly connected with a support column which is arranged in a T-shaped cross section. A groove is arranged on the support column, and a guide rod is fixedly connected in the groove. In the process of detecting the ball pin, the qualified workpieces can be automatically moved to the conveying belt without using a discharging module, the energy consumption of the device is small, and the detection cost is low.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a ball pin testing device and a ball pin production line. Background Technology

[0002] With the continuous development of society and the continuous progress of technology, the use of ball joints is gradually increasing. Ball joints are important parts that ensure the stability of automobile handling. During the manufacturing process, ball joints generally need to undergo multi-station testing to ensure quality.

[0003] Chinese Patent Publication No. CN110479622A discloses a ball pin detection device and a ball pin production line. The ball pin detection device includes: a worktable and a detection disc, a drive module and a detection module disposed on the worktable. The detection module includes at least three detection units, which are arranged along the circumference of the detection disc. At least two ball pin positioning modules are disposed on the detection disc.

[0004] Although the ball pin detection device and ball pin production line in the above patent solve the problem of low detection efficiency and impact on ball pin production efficiency of existing ball pin detection methods, they have the following drawbacks: during the ball pin detection process, the device needs to use the loading module and unloading module to pick up and place the workpieces in sequence. The workpieces that pass the inspection cannot be automatically moved to the conveyor belt. The device consumes a lot of energy and the inspection cost is high. Summary of the Invention

[0005] The purpose of this invention is to address the following shortcomings in the prior art: during the inspection of ball pins, the device requires the use of a loading module and a unloading module to sequentially pick up and place the workpieces; the qualified workpieces cannot be automatically moved onto the conveyor belt; the device consumes a lot of energy; and the inspection cost is high. Therefore, this invention proposes a ball pin inspection device and a ball pin production line.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A ball pin detection device includes a support platform, a conveyor belt, and multiple detection units. A first guide block and two support plates are fixedly connected to the support platform. A detection disc is rotatably mounted on one of the support plates, and two cross rods are rotatably connected to the other support plate. The first guide block is connected to a second guide block through a first torsion spring.

[0008] A hydraulic cylinder is installed on the support platform. The drive end of the hydraulic cylinder is fixedly connected to a support column with a T-shaped cross-section. A groove is provided on the support column. A guide rod is fixedly connected in the groove. A bracket is connected to the guide rod through a first spring. A servo motor is installed on the bracket. A bidirectional lead screw is fixedly connected to the drive end of the servo motor. A clamping assembly is provided on the bidirectional lead screw. The clamping assembly includes two clamping blocks threaded onto the bidirectional lead screw.

[0009] Each of the detection discs has multiple through holes, and each through hole contains a circular plate. The detection discs are equipped with multiple electric push rods, and the drive end of each electric push rod is fixedly connected to the corresponding circular plate. The support plate is equipped with a feeding assembly, which includes an inclined plate fixedly connected to the support plate.

[0010] As a preferred embodiment, an extrusion block is fixedly connected to one side surface of the support platform, and an opening is provided on the extrusion block. An extrusion rod is fixedly connected to one side surface of the bracket, and one end of the extrusion rod is in contact with the inclined surface of the opening.

[0011] As a preferred embodiment, a groove is formed on one side surface of the support platform, and a bending block is slidably disposed in the groove. A second spring is fixedly connected to the bending block, and one end of the second spring is fixedly connected to the inner wall of the groove. A crossbar is fixedly connected to one side surface of the bracket. A support block with a T-shaped cross-section is slidably connected to the support platform. The support block is disposed below the second guide block, and a hinge rod is hinged to the support block. The hinge rod is hinged to the bending block.

[0012] As a preferred embodiment, a second torsion spring is fitted onto one of the cross rods, one end of the second torsion spring is fixedly connected to the cross rod, and the other end of the second torsion spring is fixedly connected to the support plate. A rotating block is fixedly connected to the cross rod, and a limiting rod with an L-shaped cross section is fixedly connected to the support block. The lower surface of the limiting rod is in contact with the upper surface of the rotating block.

[0013] As a preferred embodiment, each of the cross rods is fixedly connected to a pulley, and the two pulleys are connected by a belt. Two slide rods are slidably connected to the first guide block, and a positioning plate is fixedly connected to one end of each slide rod.

[0014] As a preferred embodiment, each of the slide bars has a T-shaped cross-section, and a third spring is sleeved on the slide bar. One end of the third spring is fixedly connected to the slide bar, and the other end of the third spring is fixedly connected to the first guide block.

[0015] As a preferred embodiment, the detection disk has multiple bevels, each bevel communicating with a corresponding through hole, and multiple arc-shaped plates are fixedly connected to the upper surface of the detection disk.

[0016] As a preferred embodiment, an airbag and a baffle are provided on one side of the support platform. The airbag is positioned between the baffle and the bending block. Two one-way valves are installed on the airbag. The second guide block has multiple oblique holes, which are connected to the airbag via corrugated pipes.

[0017] A ball pin production line, wherein a ball pin detection device is provided in the ball pin production line.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The electric push rod drives the circular plate to move horizontally and retracts towards the center of the detection disc. After the circular plate moves, it no longer blocks the through hole. The qualified ball head pin in the through hole will fall onto the inclined plate under the action of gravity and slide back onto the conveyor belt for transmission. During the detection of ball head pins, the qualified workpiece can be automatically moved to the conveyor belt without the need for transfer using the unloading module. The device has low energy consumption and low detection cost.

[0020] During the rotation of each cross bar, one end of the cross bar will move against the surface of the corresponding slide bar, the distance between the two slide bars will decrease, and the distance between the two positioning plates will also decrease. As the two positioning plates approach each other, the ball pins arranged on the first guide block can be aligned, and each ball pin will not be misaligned, so that the subsequent ball pins can fall into the through hole better and more smoothly, which is beneficial to the detection and processing of the ball pins.

[0021] After the airbag is squeezed by the bending block, the gas inside is transported through the bellows to each inclined hole for discharge. The outlet of each inclined hole is angled towards the surface of the second guide block, which can blow away the dust and impurities on the surface of the second guide block. The gas will also blow onto the ball head pin, which helps to blow away the dust on the surface of the ball head pin. This can effectively prevent dust and impurities from adhering to the ball head pin when it falls onto the surface of the second guide block, thus preventing dust and impurities from adhering to the ball head pin and affecting the subsequent detection of the ball head pin. This is conducive to better and more accurate detection of the ball head pin. Attached Figure Description

[0022] Figure 1 This is a partial front view of the ball pin detection device of the present invention.

[0023] Figure 2 This is a partial side view of the ball head pin detection device of the present invention;

[0024] Figure 3 This is a partial top view of the ball head pin detection device of the present invention;

[0025] Figure 4 This is a partial cross-sectional view of the front of the ball head pin detection device of the present invention;

[0026] Figure 5 This is a partial top view of the first guide block and the detection disk in this invention.

[0027] Figure 6 This is a bottom-view perspective view of the second guide block and support block in this invention.

[0028] Figure 7 This is a partial three-dimensional structural diagram of the first and second guide blocks in this invention.

[0029] In the diagram: 1 Support platform, 2 Conveyor belt, 3 Detection unit, 4 Arc plate, 5 Airbag, 6 Bending block, 7 Support column, 8 Opening, 9 Extrusion block, 10 Extrusion rod, 11 Bracket, 12 Clamping block, 13 Second guide block, 14 Support block, 15 First guide block, 16 Cross rod, 17 Detection disc, 18 Support plate, 19 Inclined hole, 20 Inclined plate, 21 Circular plate, 22 Second spring, 23 Bellows, 24 Bidirectional lead screw, 25 First torsion spring, 26 Electric push rod, 27 Third spring, 28 Cross bar, 29 Limiting rod, 30 Slide rod, 31 Positioning plate, 32 Belt, 33 Second torsion spring, 34 Rotating block, 35 First spring, 36 Hinge rod. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Reference Figures 1-7A ball pin detection device includes a support platform 1, a conveyor belt 2, and multiple detection units 3. A first guide block 15 and two support plates 18 are fixedly connected to the support platform 1. The two support plates 18 are perpendicular to each other. A detection disc 17 is rotatably mounted on one support plate 18, and two cross rods 16 are rotatably connected to the other support plate 18. The first guide block 15 is connected to a second guide block 13 through a first torsion spring 25. A hydraulic cylinder is installed on the support platform 1. A support column 7 with a T-shaped cross section is fixedly connected to the drive end of the hydraulic cylinder. A groove is opened on the support column 7, and a guide rod is fixedly connected in the groove. A bracket 11 is connected to the guide rod through a first spring 35. A servo motor is installed on the bracket 11. A bidirectional lead screw 24 is fixedly connected to the drive end of the servo motor. A clamping assembly is provided on the bidirectional lead screw 24. The clamping assembly includes two clamping blocks 12 threaded on the bidirectional lead screw 24.

[0032] Each detection disc 17 has multiple through holes, and each through hole contains a circular plate 21. The detection disc 17 is equipped with multiple electric push rods 26, and the drive end of each electric push rod 26 is fixedly connected to the corresponding circular plate 21. The support plate 18 is equipped with a feeding assembly, which includes an inclined plate 20 fixedly connected to the support plate 18.

[0033] An extrusion block 9 is fixedly connected to one side surface of the support platform 1. An opening 8 is provided on the extrusion block 9. An extrusion rod 10 is fixedly connected to one side surface of the bracket 11. One end of the extrusion rod 10 is in contact with the inclined surface of the opening 8. The hydraulic cylinder drives the support column 7 to move vertically upward, thereby driving the bracket 11 to move upward at the same time. One end of the extrusion rod 10 will move upward against the inclined surface of the opening 8. At the same time, the bracket 11 slides relative to the guide rod, and the first spring 35 deforms.

[0034] A groove is provided on one side surface of the support platform 1, and a bending block 6 is slidably disposed in the groove. A second spring 22 is fixedly connected to the bending block 6, and one end of the second spring 22 is fixedly connected to the inner wall of the groove. A crossbar 28 is fixedly connected to one side surface of the bracket 11. A support block 14 with a T-shaped cross section is slidably connected to the support platform 1. The support block 14 is located below the second guide block 13. A hinge rod 36 is hinged to the support block 14. The hinge rod 36 is hinged to the bending block 6. During the movement of the crossbar 28, it will move together with the right side surface of the bending block 6. During the relative sliding of the bending block 6 and the groove, the second spring 22 deforms, and the tilt angle of the hinge rod 36 changes at the same time. The support block 14 moves vertically upward at the same time. During the upward movement of the support block 14, it will move together with the lower surface of the second guide block 13. The second guide block 13 and the first guide block 15 rotate relative to each other, and the first torsion spring 25 deforms at the same time.

[0035] A second torsion spring 33 is fitted on one of the cross rods 16. One end of the second torsion spring 33 is fixedly connected to the cross rod 16, and the other end of the second torsion spring 33 is fixedly connected to the support plate 18. A rotating block 34 is fixedly connected to the cross rod 16, and a limiting rod 29 with an L-shaped cross section is fixedly connected to the support block 14. The lower surface of the limiting rod 29 is in contact with the upper surface of the rotating block 34.

[0036] Each cross rod 16 is fixedly connected to a pulley, and the two pulleys are connected by a belt 32. Two sliding rods 30 are slidably connected to the first guide block 15. One end of each sliding rod 30 is fixedly connected to a positioning plate 31. After the support block 14 drives the limiting rod 29 to move upward together, the limiting rod 29 will disengage from the rotating block 34. Under the transmission action of the second torsion spring 33, the cross rod 16 and the rotating block 34 rotate simultaneously. The rotating block 34 rotates from a horizontal state to an inclined state. Under the transmission action of the pulley and the belt 32, the other cross rod 16 rotates simultaneously.

[0037] Each slide bar 30 has a T-shaped cross section. A third spring 27 is fitted on the slide bar 30. One end of the third spring 27 is fixedly connected to the slide bar 30, and the other end of the third spring 27 is fixedly connected to the first guide block 15. During the rotation of each cross bar 16, one end of the cross bar 16 will move against the surface of the corresponding T-shaped slide bar 30. The slide bar 30 and the first guide block 15 slide relative to each other. The third spring 27 deforms, the distance between the two slide bars 30 decreases, and the distance between the two positioning plates 31 decreases at the same time. As the two positioning plates 31 approach each other, the ball pins arranged on the first guide block 15 can be aligned.

[0038] The detection disc 17 has multiple bevels, each connected to a corresponding through hole. Multiple arc plates 4 are fixedly connected to the upper surface of the detection disc 17. Ball pins can slide down along the bevel surface of the first guide block 15 and pass through the gap between the arc plates 4, falling onto the bevel. Subsequently, the ball pins will slide down along the bevel surface into the through hole. An airbag 5 and a baffle are provided on one side of the support platform 1. The airbag 5 is located between the baffle and the bending block 6. Two one-way valves are installed on the airbag 5. Multiple bevel holes 19 are provided on the second guide block 13. The multiple bevel holes 19 are connected to the airbag 5 through a bellows 23. When the airbag 5 is squeezed, the gas inside it will be transported to each bevel hole 19 through the bellows 23 and discharged. The outlet of each bevel hole 19 is inclined towards the surface of the second guide block 13, thereby blowing away the dust and impurities on the surface of the second guide block 13.

[0039] A ball pin production line, wherein a ball pin detection device is installed in the ball pin production line.

[0040] In this invention, during use, multiple ball-head pins (not shown) are conveyed from right to left on conveyor belt 2 at intervals of a certain distance (as shown in the attached diagram). Figure 1 As shown, when a ball pin is about to move between the two clamping blocks 12, the bidirectional lead screw 24 and the bracket 11 rotate relative to each other under the drive of the servo motor. As the two clamping blocks 12 move along the bidirectional lead screw 24, they slide against the upper inner wall of the bracket 11. As the two clamping blocks 12 approach each other, they can clamp the ball pin. Then, the hydraulic cylinder drives the support column 7 to move vertically upward, thereby driving the bracket 11 and the ball pin between the two clamping blocks 12 to move upward at the same time. One end of the pressing rod 10 will move upward against the inclined surface of the opening 8. The bracket 11 slides relative to the guide rod at the same time. Since one end of the first spring 35 is fixedly connected to the bracket 11 and the other end is fixedly connected to the guide rod, the first spring 35 deforms.

[0041] During the relative sliding of the bracket 11 and the support column 7, the ball pin between the clamping blocks 12 can be driven to move towards the first guide block 15. During the movement of the crossbar 28 along with the bracket 11, it will move against the right side surface of the bending block 6. During the relative sliding of the bending block 6 and the slide groove, the second spring 22 deforms, the tilt angle of the hinge rod 36 changes at the same time, and the support block 14 moves vertically upward at the same time. In the initial state, the first guide block 15 and the second guide block 13 are similar to an inverted V shape. During the upward movement of the support block 14, it will move against the lower surface of the second guide block 13. The second guide block 13 and the first guide block 15 rotate relative to each other. Since one end of the first torsion spring 25 is fixedly connected to the second guide block 13 and the other end is fixedly connected to the first guide block 15, the first torsion spring 25 deforms at the same time.

[0042] After the second guide block 13 rotates upward, it will gradually be aligned with the inclined first guide block 15. At this time, the ball pin between the two clamping blocks 12 is located a short distance above the second guide block 13. At this time, the servo motor drives the bidirectional lead screw 24 to rotate, and the distance between the two clamping blocks 12 increases. After the two clamping blocks 12 are separated from the ball pin, the ball pin will fall onto the second guide block 13 under the action of gravity and slide down along the inclined surface of the second guide block 13 and the first guide block 15. Only one ball pin can be placed horizontally on the first guide block 15. By repeating the above process, multiple ball pins will be arranged on the first guide block 15.

[0043] Driven by the drive motor, the detection disc 17 rotates above the support plate 18. The distance between the arc plates 4 is slightly larger than the size of the ball pin. When the gap between two arc plates 4 faces one end of the first guide block 15, the ball pin slides down the inclined surface of the first guide block 15, passes through the gap between the arc plates 4, and falls onto the inclined opening. Subsequent ball pins slide down the inclined surface of the inclined opening into the through hole. During the subsequent rotation of the detection disc 17, the arc plates 4 face one end of the first guide block 15, preventing the next ball pin from sliding onto the detection disc 17. On the upper surface, repeating the above process, each ball pin can be placed in each through hole in sequence. As the ball pin rotates with the detection disc 17, it will face each detection unit 3. The detection unit 3 can then detect the ball pin. When the ball pin passes the test, the corresponding electric push rod 26 on the detection disc 17 drives the circular plate 21 to move horizontally. The circular plate 21 retracts towards the center of the detection disc 17. After the circular plate 21 moves, it no longer blocks the through hole. Under the action of gravity, the ball pin in the through hole will fall onto the inclined plate 20 and slide back down onto the conveyor belt 2 for transmission.

[0044] When the ball head pin in the through hole fails the inspection, the electric push rod 26 does not drive the circular plate 21 to move. The defective ball head pin can be removed and transferred using the unloading module, or it can be removed and transferred manually. During the production of ball head pins, the number of defective ball head pins will be far less than the number of qualified ball head pins. Whether the defective ball head pin is removed by the unloading module or manually, the unloading module works very infrequently, consumes less energy, and requires less work from the staff. During the ball head pin inspection process, the qualified workpieces can be automatically moved to the conveyor belt 2 without the need for transfer using the unloading module. The energy consumption of the device is low, and the inspection cost is low.

[0045] Initially, the limiting rod 29 and its lower surface are in contact with the upper surface of the rotating block 34, which is horizontally positioned. As the support block 14 moves upward, it will cause the limiting rod 29 to move upward as well, disengaging it from the rotating block 34. Under the transmission action of the second torsion spring 33, the cross rod 16 and the rotating block 34 rotate simultaneously, with the rotating block 34 rotating from a horizontal state to an inclined state. Under the transmission action of the pulley and belt 32, the other cross rod 16 rotates simultaneously, and the cross sections of both cross rods 16 are inclined. With the cross-shaped arrangement, as each cross rod 16 rotates, one end of each cross rod 16 will move against the surface of the corresponding T-shaped slide rod 30. The third spring 27 will deform, the distance between the two slide rods 30 will decrease, and the distance between the two positioning plates 31 will also decrease. As the two positioning plates 31 approach each other, the ball pins arranged on the first guide block 15 can be aligned, and the ball pins will not be misaligned, so that the subsequent ball pins can fall into the through hole better and more smoothly, which is beneficial to the detection and processing of the ball pins.

[0046] As the bending block 6 moves under the squeezing action of the crossbar 28, it squeezes the airbag 5 between the baffle and the bending block 6. The one-way valve restricts only outside air from entering the airbag 5. The gas inside the airbag 5 can only be discharged through the bellows 23. After the airbag 5 is squeezed, the gas inside it will be transported to each inclined hole 19 through the bellows 23 for discharge. The outlet of each inclined hole 19 is inclined towards the surface of the second guide block 13, which can blow away the dust and impurities on the surface of the second guide block 13. The gas will also blow onto the ball head pin, which is beneficial to blowing away the dust on the surface of the ball head pin. This can effectively prevent dust and impurities from adhering to the ball head pin when it falls onto the surface of the second guide block 13, thus preventing dust and impurities from adhering to the ball head pin and affecting the detection of the ball head pin. This is conducive to better and more accurate detection of the ball head pin.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A ball stud inspection apparatus comprising a support table (1), a conveyor belt (2), a plurality of inspection units (3), characterized in that, The support table (1) is fixedly connected with a first material guide block (15) and two support plates (18), one of which is rotatably provided with a detection disc (17), and the other is rotatably connected with two cross rods (16), and the first material guide block (15) is connected with a second material guide block (13) through a first torsion spring (25); The support table (1) is provided with a hydraulic cylinder, the driving end of the hydraulic cylinder is fixedly connected with a support column (7) with a T-shaped cross section, a groove is formed in the support column (7), a guide rod is fixedly connected in the groove, a bracket (11) is connected to the guide rod through a first spring (35), a servo motor is installed on the bracket (11), the driving end of the servo motor is fixedly connected with a bidirectional screw rod (24), a clamping assembly is arranged on the bidirectional screw rod (24), and the clamping assembly comprises two clamping blocks (12) which are screwed on the bidirectional screw rod (24); A plurality of through holes are formed in each detection disc (17), a circular plate (21) is arranged in each through hole, a plurality of electric push rods (26) are arranged on the detection disc (17), the driving end of each electric push rod (26) is fixedly connected with a corresponding circular plate (21), and a discharging assembly is arranged on the support plate (18), the discharging assembly comprises an inclined plate (20) fixedly connected to the support plate (18); One side surface of the support table (1) is fixedly connected with an extrusion block (9), an opening (8) is formed in the extrusion block (9), one side surface of the bracket (11) is fixedly connected with an extrusion rod (10), and one end of the extrusion rod (10) is in abutment with the inclined surface of the opening (8); One side surface of the support table (1) is provided with a sliding groove, a bending block (6) is slidably arranged in the sliding groove, a second spring (22) is fixedly connected to the bending block (6), one end of the second spring (22) is fixedly connected to the inner wall of the sliding groove, one side surface of the bracket (11) is fixedly connected with a cross rod (28), the support table (1) is slidably connected with a support block (14) with a T-shaped cross section, the support block (14) is arranged below the second material guide block (13), a hinge rod (36) is hingedly connected to the support block (14), and the hinge rod (36) is hingedly connected to the bending block (6); in the movement of the cross rod (28), the right side surface of the bending block (6) is moved together; One of the cross rods (16) is sleeved with a second torsion spring (33), one end of the second torsion spring (33) is fixedly connected to the cross rod (16), the other end of the second torsion spring (33) is fixedly connected to the support plate (18), a rotating block (34) is fixedly connected to the cross rod (16), and the support block (14) is fixedly connected with a limiting rod (29) with an L-shaped cross section, the lower surface of the limiting rod (29) is in abutment with the upper surface of the rotating block (34); Each cross bar (16) is fixedly connected with a pulley, two pulleys are connected through a belt (32), the first guide block (15) is slidably connected with two slide rods (30), one end of each slide rod (30) is fixedly connected with a positioning plate (31); in the rotating process of each cross bar (16), one end of the cross bar (16) moves against the surface of the corresponding slide rod (30) respectively.

2. A ball stud testing device according to claim 1, wherein Each slide rod (30) is T-shaped in cross section, a third spring (27) is sleeved on the slide rod (30), one end of the third spring (27) is fixedly connected with the slide rod (30), and the other end of the third spring (27) is fixedly connected with the first guide block (15).

3. A ball stud testing apparatus according to claim 1, wherein The detection disc (17) is provided with a plurality of bevels, each bevel is communicated with the corresponding through hole, and the upper surface of the detection disc (17) is fixedly connected with a plurality of arc-shaped plates (4).

4. A ball stud testing apparatus as claimed in claim 1, wherein One side of the support table (1) is provided with an air bag (5) and a baffle, the air bag (5) is arranged between the baffle and the bending block (6), two one-way valves are installed on the air bag (5), a plurality of inclined holes (19) are formed in the second guide block (13), and the plurality of inclined holes (19) are connected with the air bag (5) through a corrugated pipe (23).

5. A ball stud production line characterized by, The ball head pin production line is provided with the ball head pin detection device of any one of claims 1-4.

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