Four-station rotating device and four-station testing equipment

Abstract

This invention provides a four-station rotating device and a four-station testing equipment. The four-station rotating device includes a turntable, four clamping platforms, and a rotary driver. The four clamping platforms are evenly connected to the turntable in sequence, and each clamping platform includes a loading area, an alignment area, a testing area, and an unloading area along its rotation trajectory. Each clamping platform includes a base frame, connecting rods, and two sets of clamps. The base frame includes a main plate and two extension rods, each extending perpendicularly from both ends of the main plate and in the same direction. The connecting rods are perpendicularly connected to the two extension rods. The two sets of clamps are respectively connected to the main plate and the connecting rods. The four-station testing equipment includes the aforementioned four-station rotating device. The four-station rotating device and four-station testing equipment of this invention clamp and fix the two sides of a circuit board using two sets of opposing clamps. The upper and lower heads of the testing equipment can press and test the circuit board from its bottom and top surfaces respectively, meeting specific testing requirements.

Description

[0001] This application is a divisional application of the original application, which was filed on May 30, 2023, with application number 2023106284468, and the invention title is "Four-station rotating device and four-station testing equipment". Technical Field

[0002] This invention relates to the field of automation technology, and in particular to a four-station rotating device and a four-station testing equipment. Background Technology

[0003] In circuit board manufacturing production lines, there are generally several stages: loading, alignment, testing, and unloading. These stages are typically connected by a four-station rotary device for transporting the circuit boards. Existing four-station rotary devices generally use suction cups on a turntable to hold the circuit boards in place. However, when the upper and lower heads of the testing equipment used in the testing stage need to press the circuit boards against their bottom and top surfaces for testing, the suction cups in existing technology obstruct the bottom of the circuit boards, preventing the testing equipment from pressing and testing them. Even if some four-station rotary devices use conventional clamps to hold the circuit boards, these clamps are difficult to control and result in unstable clamping.

[0004] Therefore, it is necessary to provide a four-station rotating device and a four-station testing equipment to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a four-station rotating device and a four-station testing equipment. The upper and lower heads of the testing device can press and test the circuit board from the bottom and top surfaces respectively, meeting specific testing requirements. The clamps can automatically control the clamping or releasing of the circuit board, which is easy to control and the process is stable.

[0006] The technical solution of this invention is as follows:

[0007] A four-station rotating device, characterized in that it is used for rotating and conveying circuit boards, the four-station rotating device comprising:

[0008] A turntable, its rotation mechanism;

[0009] Four clamping platforms are evenly connected to the turntable in sequence, and the clamping platforms include a loading area, an alignment area, a testing area and a unloading area on their rotation trajectory;

[0010] A rotary driver, connected to the turntable, is used to drive the turntable and each of the clamping platforms to rotate, so that each of the clamping platforms cyclically passes through the loading area, the alignment area, the testing area and the unloading area in sequence;

[0011] The clamping platform includes a base frame, connecting rods, and two sets of clamps. The base frame includes a main plate and two extension rods. The main plate is connected to the turntable. The two extension rods protrude vertically from both ends of the main plate and extend in the same direction. The connecting rod is vertically connected to the two extension rods. The connecting rod is connected to the base frame to form a hollow structure. The two sets of clamps are respectively connected to the main plate and the connecting rods, and the clamping openings of the two sets of clamps are opposite to each other.

[0012] Each set of clamps is configured with multiple clamps, and the clamping platform also includes two first linear guide rails, which are respectively connected between the main body plate and one set of clamps, and between the connecting rod and another set of clamps;

[0013] The clamp includes a base, a pad, a rotating block, a push block, a pressure block, and a horizontal drive component. The base includes a first connecting end, a second connecting end, and a third connecting end. The third connecting end is located between the first and second connecting ends. The first connecting end is connected to the slider of the first linear guide rail. The second connecting end is connected to the pad. The two ends of the rotating block are rotatably connected to the third connecting end and the push block, respectively. The push block has a release position and a clamping position on its movement trajectory. The pressure block is connected to the rotating block, and the pressure block and the push block are located on the same side of the rotating block. At one end, the horizontal driving component is a cylinder connected to the push block, which drives the push block to move back and forth between the release position and the clamping position. The release position is away from the circuit board relative to the clamping position. When the push block moves from the release position to the clamping position, the rotating block and the pressing block rotate towards the circuit board, so that the pressing block and the pad block cooperate to clamp the circuit board. When the push block moves from the clamping position to the release position, the rotating block and the pressing block rotate away from the circuit board, so that the pressing block and the pad block separate and release the circuit board.

[0014] In the four-station rotating device of the present invention, the pad block is provided with a stepped groove at one end near the circuit board, and the pressure block is provided with a protrusion at one end near the circuit board. When the push block is in the clamping position, the protrusion is located in the stepped groove.

[0015] In the four-station rotating device of the present invention, the clamping platform further includes two fixed racks, which are respectively fixed to the main body plate and the connecting rod; the clamp also includes a movable rack, which is movably engaged with the fixed rack, and the movable rack is connected to the base.

[0016] In the four-position rotating device of the present invention, the clamp further includes a spring piece that connects the moving rack and the base.

[0017] In the four-station rotating device of the present invention, the clamping platform further includes two scales, which are respectively fixed to the main body plate and the connecting rod, for marking the position of the clamp.

[0018] In the four-station rotating device of the present invention, the clamping platform further includes:

[0019] Two second linear guides are respectively connected to the two extension rods, and both are aligned with the length direction of the extension rods; and,

[0020] Two connecting blocks, the connecting blocks connecting the slider of the second linear guide rail and one end of the connecting rod;

[0021] In the four-station rotating device of the present invention, the clamping platform further includes:

[0022] Two side plates are respectively connected to the two extension rods, the length direction of the side plates is consistent with the length direction of the extension rods, and each side plate is provided with an elongated sliding hole, the length direction of the sliding hole being consistent with the length direction of the side plate; and,

[0023] Two locking assemblies are provided, each including a locking screw, a washer, and a locking handle. The locking screw is movably inserted into the sliding hole. The locking handle is rotatably connected to one end of the locking screw, and the other end of the locking screw is connected to the connecting block. The washer is sleeved on the locking screw and located between the locking handle and the side plate. The locking handle has a sliding position and a locking position on its rotation trajectory. When the locking handle is in the sliding position, there is a gap between the locking handle and the washer, allowing the locking screw to slide in the sliding hole. When the locking handle is in the locking position, the washer is interference-fitted between the locking handle and the side plate, fixing the locking screw to the side plate.

[0024] Another technical solution of the present invention is:

[0025] A four-station testing device includes: the aforementioned four-station rotating device, a pre-feeding track conveyor mechanism, a dust-adhesive mechanism, a post-feeding track conveyor mechanism, a loading arm, an alignment mechanism, a testing device, a unloading arm, a marking platform, multiple receiving platforms, and a discharge arm. The post-feeding track conveyor mechanism, the dust-adhesive mechanism, and the pre-feeding track conveyor mechanism are sequentially arranged on one side of the loading area along the transverse direction. The loading arm is slidably disposed above the post-feeding track conveyor mechanism and the loading area. The alignment mechanism is disposed in the alignment area. The testing device is disposed in the testing area. The marking platform is arranged adjacent to the unloading area along the transverse direction. The multiple receiving platforms and the marking platform are arranged longitudinally. The unloading arm is slidably disposed above the unloading area and the marking platform. The discharge arm is slidably disposed above the marking platform and the multiple receiving platforms.

[0026] In the four-station testing device of the present invention, the four-station testing device further includes two sets of support components, the two sets of support components are located below the loading area and are arranged in parallel along the longitudinal direction, each support component including:

[0027] Tray, used to support circuit boards; and,

[0028] A vertical drive unit, connected to the tray, is used to drive the tray to move in a vertical direction.

[0029] Compared with the prior art, the beneficial effects of this invention are as follows: In the four-station rotating device and four-station testing equipment of this invention, one clamping platform is first located in the loading area for loading, and the two sides of the circuit board are clamped and fixed by two sets of opposing clamps. Then, the rotary driver rotates 90°, so that the clamping platform is located in the alignment area. After the alignment operation is completed, the rotary driver rotates another 90°, so that the clamping platform is located in the testing area. Because the connecting rod and the base frame form a hollow structure, the upper and lower heads of the testing device can press and test from the bottom and top surfaces of the circuit board respectively, meeting specific testing requirements. The rotary driver rotates another 90°, so that the clamping platform is located in the unloading area to complete the unloading operation. The rotary driver rotates cyclically, and the loading, alignment, testing and unloading processes are carried out simultaneously, effectively improving production efficiency.

[0030] When the circuit board needs to be clamped, the horizontal drive unit moves the push block from the release position to the clamping position. The push block pushes the upper end of the rotating block to rotate closer to the circuit board, and the pressure block also rotates closer to the circuit board, thus allowing the pressure block and the pad to clamp the circuit board. Because the rotating block is rotatably connected to the push block through a second rotating shaft, the push block will not jam during movement. When the circuit board needs to be released, the horizontal drive unit moves the push block from the clamping position to the release position. The push block pulls the upper end of the rotating block to rotate away from the circuit board, and the pressure block also rotates away from the circuit board, thus allowing the pressure block and the pad to separate and release the circuit board. The clamp can automatically control the clamping or releasing of the circuit board, which is easy to control and the process is stable. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of the present invention.

[0032] Figure 1 This is a top view of the four-station rotating device provided in a preferred embodiment of the present invention.

[0033] Figure 2 This is a schematic diagram of the clamping platform of the four-station rotating device provided in a preferred embodiment of the present invention.

[0034] Figure 3 This is a schematic diagram of the clamping platform of the four-station rotating device provided in a preferred embodiment of the present invention from another angle.

[0035] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle.

[0036] Figure 5 This is a schematic diagram of the base frame of the four-station rotating device provided in a preferred embodiment of the present invention.

[0037] Figure 6 This is a schematic diagram showing the disassembled structure of the locking assembly and connecting block of the four-station rotating device provided in a preferred embodiment of the present invention.

[0038] Figure 7 This is a schematic diagram of the clamp structure of the four-station rotating device provided in a preferred embodiment of the present invention.

[0039] Figure 8 This is an exploded view of the clamp of the four-station rotating device provided in a preferred embodiment of the present invention.

[0040] Figure 9 This is a schematic diagram of the structure of a four-station testing device provided in a preferred embodiment of the present invention.

[0041] Figure 10 A schematic diagram of the support components of a four-station testing device provided in a preferred embodiment of the present invention.

[0042] in,

[0043] 001. Circuit board

[0044] 1. Four-position rotating device,

[0045] 11. Turntable

[0046] 12. Plywood platform,

[0047] 12a. Loading area; 12b. Alignment area; 12c. Testing area; 12d. Unloading area.

[0048] 120. Base frame; 1201. Main body plate; 1202. Extension rod.

[0049] 121. Connecting rod,

[0050] 122. Clip,

[0051] 1221, Base; 12211, First Connecting End; 12212, Second Connecting End; 12213, Third Connecting End.

[0052] 1222, pad block; 12221, step groove;

[0053] 1223. Rotating block,

[0054] 1224, Push the block.

[0055] 1225, pressure block; 12251, protrusion block.

[0056] 1226. Horizontal drive components,

[0057] 1227. Moving rack,

[0058] 1228. Shrapnel

[0059] 123. First linear guide rail,

[0060] 124. Second linear guide rail,

[0061] 125. Connecting block,

[0062] 126. Side plate; 1261. Sliding hole;

[0063] 127. Locking assembly; 1271. Locking screw; 1272. Washer; 1273. Locking handle.

[0064] 128. Fix the rack and pinion.

[0065] 129. Ruler

[0066] 2. Pre-feeding track conveyor mechanism,

[0067] 3. Dust-adhesion mechanism,

[0068] 4. Post-feeding track conveyor mechanism,

[0069] 5. Loading arm,

[0070] 6. Alignment mechanism,

[0071] 7. Testing apparatus

[0072] 8. Unloading arm,

[0073] 9. Marking platform

[0074] 10. Receiving table,

[0075] 20. Discharge arm,

[0076] 30. Support components; 301. Tray; 302. Vertical drive components.

[0077] In the diagram, units with similar structures are represented by the same labels. Detailed Implementation

[0078] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0079] The directional terms mentioned in this invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this invention, and are not intended to limit this invention.

[0080] The terms "first" and "second" used in the terminology of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as limiting the order of events.

[0081] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0082] In existing four-station rotary devices, suction cups are typically used on the turntable to hold circuit boards. When the upper and lower heads of the testing device used in the testing process need to press the circuit board from the bottom and top of the circuit board for testing, the suction cups used in the existing technology block the bottom of the circuit board, making it impossible for the testing device to press and test the circuit board. Even if some four-station rotary devices use conventional clamps to hold the circuit board, the clamps are not easy to control and the clamping is unstable.

[0083] The following is a preferred embodiment of a four-station rotating device and a four-station testing equipment provided by the present invention, which can solve the above-mentioned technical problems.

[0084] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A preferred embodiment of the present invention provides a four-station rotating device 1 for rotating and conveying a circuit board 001. The four-station rotating device 1 includes a turntable 11, four clamping platforms 12, and a rotating driver. The turntable 11 is rotatably arranged. The four clamping platforms 12 are sequentially and evenly connected to the turntable 11, with each adjacent pair of clamping platforms 12 spaced 90° apart. Each clamping platform 12 includes a loading area 12a, an alignment area 12b, a testing area 12c, and a unloading area 12d along its rotational trajectory. The rotating driver is connected to the turntable 11 and drives the turntable 11 and each clamping platform 12 to rotate, so that each clamping platform 12 cyclically passes through the loading area 12a, the alignment area 12b, the testing area 12c, and the unloading area 12d in sequence. Each clamping platform 12 includes a base frame 120, a connecting rod 121, and two sets of clamps 122. The base frame 120 includes a main body plate 1201 and two extension rods 1202. The main body plate 1201 is connected to the turntable 11. The two extension rods 1202 protrude vertically from both ends of the main body plate 1201 and extend in the same direction. A connecting rod 121 is vertically connected to the two extension rods 1202. The connecting rod 121 is connected to the base frame 120 to form a hollow structure. Two sets of clamps 122 are respectively connected to the main body plate 1201 and the connecting rods 121, and the clamping openings of the two sets of clamps 122 are opposite to each other.

[0085] The four-station rotating device 1 of the present invention includes a clamping platform 12 initially located in the loading area 12a for loading, and clamping and fixing the two sides of the circuit board 001 by two sets of opposing clamps 122. Then, the rotary driver rotates 90°, so that the clamping platform 12 is located in the alignment area 12b. After the alignment operation is completed, the rotary driver rotates another 90°, so that the clamping platform 12 is located in the testing area 12c. Because the connecting rod 121 and the base frame 120 form a hollow structure, the upper and lower heads of the testing device 7 can press and test the circuit board 001 from the bottom and top surfaces respectively, meeting specific testing requirements. The rotary driver then rotates another 90°, so that the clamping platform 12 is located in the unloading area 12d, completing the unloading operation. The rotary driver rotates cyclically, and the loading, alignment, testing and unloading processes are carried out simultaneously, effectively improving production efficiency.

[0086] Please refer to Figure 2 Each set of clamps 122 consists of multiple clamps; in this example, both sets of clamps 122 have four clamps each. The clamping platform 12 also includes two first linear guides 123, which are respectively connected between the main body plate 1201 and one set of clamps 122, and between the connecting rod 121 and another set of clamps 122. The length of both first linear guides 123 is the same as the length of the connecting rod 121. With this structure, when some parts of the circuit board 001 cannot be clamped, the position of the clamps 122 can be adjusted to clamp the circuit board 001 at a suitable position.

[0087] Please refer to Figure 2 and Figure 3 The clamping platform 12 also includes two second linear guides 124 and two connecting blocks 125. The two second linear guides 124 are respectively connected to two extension rods 1202, and are aligned with the length direction of the extension rods 1202. The connecting blocks 125 connect the sliders of the second linear guides 124 and one end of the connecting rod 121. In this structure, both ends of the connecting rod 121 are connected to the second linear guides 124 via the two connecting blocks 125, allowing the connecting rod 121 to move closer to or further away from the main plate 1201. This allows the clamps 122 on the connecting rod 121 to move closer to or further away from the clamps 122 on the main plate 1201, with the appropriate distance selectable based on the different widths of the circuit board 001.

[0088] Please refer to Figure 3 , Figure 4 and Figure 6The clamping platform 12 also includes two side plates 126 and two locking assemblies 127. The two side plates 126 are respectively connected to two extension rods 1202, with the length direction of the side plates 126 aligned with the length direction of the extension rods 1202. Each side plate 126 has an elongated sliding hole 1261, with the length direction of the sliding hole 1261 aligned with the length direction of the side plate 126. Each locking assembly 127 includes a locking screw 1271, a washer 1272, and a locking handle 1273. The locking screw 1271 is movably inserted into the sliding hole 1261. The locking handle 1273 is rotatably connected to one end of the locking screw 1271, and the other end of the locking screw 1271 is connected to the connecting block 125. The washer 1272 is sleeved on the locking screw 1271 and located between the locking handle 1273 and the side plate 126. The locking handle 1273 has a sliding position and a locking position on its rotation trajectory. When the locking handle 1273 is in the sliding position, there is a gap between the locking handle 1273 and the washer 1272, allowing the locking screw 1271 to slide in the sliding hole 1261. When the locking handle 1273 is in the locked position, the washer 1272 is interference-fitted between the locking handle 1273 and the side plate 126, fixing the locking screw 1271 to the side plate 126. In this embodiment, the locking handle 1273 is shown in the locked position. In the above structure, when it is necessary to adjust the distance between the two sets of clamps 122, the locking handle 1273 is adjusted to the sliding position. At this time, there is a gap between the locking handle 1273 and the washer 1272, and the washer 1272 can move back and forth on the locking screw 1271. The washer 1272 is not stuck with the side plate 126, and the locking screw 1271 can slide in the sliding hole 1261 without affecting the movement of the connecting rod 121. When it is necessary to fix the distance between the two sets of clamps 122, the locking handle 1273 is adjusted to the locking position. At this time, the locking handle 1273 presses the washer 1272 onto the side plate 126, and the locking screw 1271 cannot slide in the sliding hole 1261. Therefore, the connecting rod 121 cannot move, and the distance between the two sets of clamps 122 is fixed, which enhances stability.

[0089] Please refer to Figure 7 and Figure 8The clamp 122 includes a base 1221, a pad 1222, a rotating block 1223, a push block 1224, a pressure block 1225, and a horizontal drive member 1226. The base 1221 includes a first connecting end 12211, a second connecting end 12212, and a third connecting end 12213. The third connecting end 12213 is located between the first connecting end 12211 and the second connecting end 12212. The first connecting end 12211 is connected to the slider of the first linear guide rail 123. The second connecting end 12212 is connected to the pad 1222. The two ends of the rotating block 1223 are rotatably connected to the third connecting end 12213 via a first rotating shaft and to the push block 1224 via a second rotating shaft, respectively. The push block 1224 moves horizontally, and its movement trajectory includes a release position and a clamping position. The pressure block 1225 is connected to the rotating block 1223, and the pressure block 1225 and the push block 1224 are located on opposite sides of the same end of the rotating block 1223. The horizontal drive member 1226 is connected to the push block 1224 and is used to drive the push block 1224 to move back and forth between the release position and the clamping position. The release position is farther away from the circuit board 001 relative to the clamping position. The horizontal drive member 1226 can be a cylinder. When the push block 1224 moves from the release position to the clamping position, the rotating block 1223 and the pressure block 1225 rotate toward the circuit board 001, so that the pressure block 1225 and the pad block 1222 cooperate to clamp the circuit board 001. When the push block 1224 moves from the clamping position to the releasing position, the rotating block 1223 and the pressing block 1225 rotate away from the circuit board 001, thereby causing the pressing block 1225 and the pad block 1222 to separate and release the circuit board 001. In this embodiment, the push block 1224 is located in the releasing position.

[0090] With the above structure, when it is necessary to clamp the circuit board 001, the horizontal drive member 1226 drives the push block 1224 to move from the release position to the clamping position. The push block 1224 pushes the upper end of the rotating block 1223 to rotate towards the circuit board 001, and the pressure block 1225 also rotates towards the circuit board 001, so that the pressure block 1225 and the pad block 1222 cooperate to clamp the circuit board 001. Since the rotating block 1223 is rotatably connected to the push block 1224 through the second rotating shaft, the push block 1224 will not get stuck during the movement. When it is necessary to release the circuit board 001, the horizontal drive member 1226 drives the push block 1224 to move from the clamping position to the release position. The push block 1224 pulls the upper end of the rotating block 1223 to rotate away from the circuit board 001, and the pressure block 1225 also rotates away from the circuit board 001, so that the pressure block 1225 and the pad block 1222 separate and release the circuit board 001. The above structure can automatically control the clamping or releasing of circuit board 001, which is easy to control and the process is stable.

[0091] Please refer to Figure 7The pad 1222 has a stepped groove 12221 at one end near the circuit board 001, and the pressure block 1225 has a protrusion 12251 at one end near the circuit board 001. When the push block 1224 is in the clamping position, the protrusion 12251 is located in the stepped groove 12221. With the above structure, during use, the circuit board 001 can be placed into the stepped groove 12221 first, which limits the two sides of the circuit board 001 to prevent the circuit board 001 from shifting, and then the clamping operation can be performed.

[0092] Please refer to Figure 3 and Figure 7 The clamping platform 12 also includes two fixed racks 128, which are respectively fixed to the main body plate 1201 and the connecting rod 121. The clamp 122 also includes a movable rack 1227 and a spring piece 1228. The movable rack 1227 is movably engaged with the fixed rack 128, and the spring piece 1228 connects the movable rack 1227 and the base 1221. With the above structure, when the clamp 122 is positioned, it can be fixed by engaging the movable rack 1227 with the fixed rack 128. Because the spring piece 1228 has a certain elasticity, bending the spring piece 1228 in a direction perpendicular to the fixed rack 128 can disengage the movable rack 1227 from the fixed rack 128. Releasing the spring piece 1228 can make the movable rack and the fixed rack 128 tightly engaged, which is convenient to use.

[0093] Please refer to Figure 3 The clamping platform 12 also includes two scales 129, which are fixed to the main body plate 1201 and the connecting rod 121 respectively, for marking the position of the clamp 122. With the above structure, the position of the clamp 122 can be accurately adjusted.

[0094] Please refer to Figure 9 At the same time, please combine Figure 1A preferred embodiment of the present invention also provides a four-station testing device, which includes a four-station rotating device 1, a pre-feeding track conveyor mechanism 2, a dust-adhesion mechanism 3, a post-feeding track conveyor mechanism 4, a loading arm 5, an alignment mechanism 6, a testing device 7, a unloading arm 8, a marking platform 9, multiple receiving platforms 10, and a discharge arm 20. The post-feeding track conveyor mechanism 4, the dust-adhesion mechanism 3, and the pre-feeding track conveyor mechanism 2 are arranged sequentially on one side of the loading area 12a along the transverse direction. The loading arm 5 is slidably disposed above the post-feeding track conveyor mechanism 4 and the loading area 12a. The alignment mechanism 6 is disposed in the alignment area 12b. The testing device 7 is disposed in the testing area 12c. The marking platform 9 is arranged adjacent to the unloading area 12d along the transverse direction. The multiple receiving platforms 10 and the marking platform 9 are arranged longitudinally. The unloading arm 8 is slidably disposed above the unloading area 12d and the marking platform 9. The discharge arm 20 is slidably disposed above the marking platform 9 and the multiple receiving platforms 10. Using the above structure, the circuit board 001 is fed into the dust removal mechanism 3 by the pre-feeding track conveyor 2 to remove dust from the circuit board 001. Then, the circuit board 001 is received by the post-feeding track conveyor 4. The loading arm 5 moves the circuit board 001 from the post-feeding track conveyor 4 to the clamping platform 12 located in the loading area 12a. The circuit board 001 enters the alignment area 12b. The alignment mechanism 6 moves horizontally and vertically in the alignment area 12b to take pictures of the mark points on the circuit board 001 and calculate their positions. The circuit board 001 then enters the testing area 12c. The testing device 7 moves horizontally and vertically, and its upper and lower heads perform pressing and testing on the circuit board 001. The circuit board 001 then enters the unloading area 12d. The unloading arm 8 moves the circuit board 001 from the unloading area 12d to the marking platform 9. The unloading arm 20 moves the circuit board 001 from the marking platform 9 to each receiving station 10. Figure 9 In this design, the x-direction is horizontal and the y-direction is vertical, with the two directions perpendicular to each other. This structure allows for automatic dust removal, material loading, alignment, testing, unloading, and discharge without manual intervention, effectively improving production efficiency.

[0095] Please refer to Figure 9 and Figure 10 The four-station testing equipment also includes two sets of support components 30, located below the loading area 12a and arranged parallel to each other longitudinally. Each support component 30 includes a tray 301 and a vertical drive 302. The tray 301 supports the circuit board 001. The vertical drive 302 is connected to the tray 301 and drives the tray 301 to move vertically. With this structure, when the loading arm 5 loads the circuit board 001 into the loading area 12a, if the circuit board 001 is narrow, one tray 301 rises; if the circuit board 001 is wide, the other tray 301 also rises, thus stably supporting the circuit board 001. Figure 10 In the diagram, the x-direction is horizontal, the y-direction is vertical, and the z-direction is vertical; the three directions are perpendicular.

[0096] The working process of the four-station testing equipment of the preferred embodiment of the present invention:

[0097] 1. Adjust the distance between the two sets of clips 122 and fix them in place using the two locking components 127;

[0098] 2. In each set of clamps 122, adjust each clamp 122 to a proper position and fix it by moving the rack 1227 and engaging it with the fixed rack 128;

[0099] 3. The circuit board 001 is fed into the dust removal mechanism 3 by the pre-feeding track conveyor 2 to remove dust from the circuit board 001, and then the circuit board 001 is received by the post-feeding track conveyor 4.

[0100] 4. The circuit board 001 is moved from the feeding rail conveyor 4 to the clamping platform 12 located in the feeding area 12a by the feeding arm 5. At the same time, one or both of the two trays 301 rise to support the circuit board 001. The horizontal drive 1226 drives the push block 1224 to move from the release position to the clamping position. The push block 1224 pushes the upper end of the rotating block 1223 to rotate towards the circuit board 001. The pressure block 1225 also rotates towards the circuit board 001, so that the pressure block 1225 and the pad block 1222 cooperate to clamp the circuit board 001. Thus, the two sides of the circuit board 001 are clamped and fixed by the two sets of opposing clamps 122.

[0101] 5. The rotary driver rotates 90° so that the clamping platform 12 is located in the alignment area 12b. The alignment mechanism 6 moves in the alignment area 12b in the horizontal and vertical directions to take pictures of the mark points on the circuit board 001 and calculate their positions.

[0102] 6. The rotary driver rotates another 90° so that the clamping platform 12 is located in the test area 12c. The test device 7 moves along the horizontal and vertical directions, and its upper and lower heads perform a pressing test on the circuit board 001.

[0103] 7. The rotary driver rotates another 90°, so that the clamping platform 12 is located in the unloading area 12d; the horizontal drive 1226 drives the push block 1224 to move from the clamping position to the releasing position. The push block 1224 pulls the upper end of the rotating block 1223 to rotate away from the circuit board 001, and the pressure block 1225 also rotates away from the circuit board 001, so that the pressure block 1225 and the pad block 1222 separate and release the circuit board 001.

[0104] 8. The unloading arm 8 moves the circuit board 001 from the unloading area 12d to the marking platform 9;

[0105] 9. The unloading arm 20 moves the circuit board 001 from the marking platform 9 to each receiving station 10.

[0106] This completes the working process of the four-station testing equipment in this preferred embodiment.

[0107] The four-station rotating device and four-station testing equipment of the present invention include a clamping platform that is first located in the loading area for loading, and the two sides of the circuit board are clamped and fixed by two sets of opposing clamps. Then, the rotary driver rotates 90°, so that the clamping platform is located in the alignment area. After the alignment operation is completed, the rotary driver rotates another 90°, so that the clamping platform is located in the testing area. Because the connecting rod and the base frame form a hollow structure, the upper and lower heads of the testing device can press and test the circuit board from the bottom and top surfaces respectively to meet specific testing requirements. The rotary driver then rotates another 90°, so that the clamping platform is located in the unloading area to complete the unloading operation. The rotary driver rotates cyclically, and the loading, alignment, testing and unloading processes are carried out simultaneously, which effectively improves production efficiency.

[0108] In summary, although the present invention has been disclosed above with reference to preferred embodiments, 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 concept of the technical solution of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A four-position rotating device, characterized in that, The four-station rotating device for rotating and conveying circuit boards includes: A turntable, its rotation mechanism; Four clamping platforms are evenly connected to the turntable in sequence, and the clamping platforms include a loading area, an alignment area, a testing area and a unloading area on their rotation trajectory; A rotary driver, connected to the turntable, is used to drive the turntable and each of the clamping platforms to rotate, so that each of the clamping platforms cyclically passes through the loading area, the alignment area, the testing area and the unloading area in sequence; The clamping platform includes a base frame, connecting rods, and two sets of clamps. The base frame includes a main plate and two extension rods. The main plate is connected to the turntable. The two extension rods protrude vertically from both ends of the main plate and extend in the same direction. The connecting rod is vertically connected to the two extension rods. The connecting rod is connected to the base frame to form a hollow structure. The two sets of clamps are respectively connected to the main plate and the connecting rods, and the clamping openings of the two sets of clamps are opposite to each other. Each set of clamps is configured with multiple clamps, and the clamping platform also includes two first linear guide rails, which are respectively connected between the main body plate and one set of clamps, and between the connecting rod and another set of clamps; The clamp includes a base, a pad, a rotating block, a push block, a pressure block, and a horizontal drive component. The base includes a first connecting end, a second connecting end, and a third connecting end. The third connecting end is located between the first and second connecting ends. The first connecting end is connected to the slider of the first linear guide rail. The second connecting end is connected to the pad. The two ends of the rotating block are rotatably connected to the third connecting end and the push block, respectively. The push block has a release position and a clamping position on its movement trajectory. The pressure block is connected to the rotating block, and the pressure block and the push block are located on the same side of the rotating block. On both sides of the end, the horizontal driving component is a cylinder, which is connected to the push block and is used to drive the push block to move back and forth between the release position and the clamping position. The release position is away from the circuit board relative to the clamping position. When the push block moves from the release position to the clamping position, the rotating block and the pressing block rotate towards the circuit board, so that the pressing block and the pad block cooperate to clamp the circuit board. When the push block moves from the clamping position to the release position, the rotating block and the pressing block rotate away from the circuit board, so that the pressing block and the pad block separate and release the circuit board. The clamping platform also includes: Two second linear guides are respectively connected to the two extension rods, and both are aligned with the length direction of the extension rods; and, Two connecting blocks, the connecting blocks connecting the slider of the second linear guide rail and one end of the connecting rod; The clamping platform also includes: Two side plates are respectively connected to the two extension rods, the length direction of the side plates is consistent with the length direction of the extension rods, and each side plate is provided with an elongated sliding hole, the length direction of the sliding hole being consistent with the length direction of the side plate; and, Two locking assemblies are provided, each including a locking screw, a washer, and a locking handle. The locking screw is movably inserted into the sliding hole. The locking handle is rotatably connected to one end of the locking screw, and the other end of the locking screw is connected to the connecting block. The washer is sleeved on the locking screw and located between the locking handle and the side plate. The locking handle has a sliding position and a locking position on its rotation trajectory. When the locking handle is in the sliding position, there is a gap between the locking handle and the washer, allowing the locking screw to slide in the sliding hole. When the locking handle is in the locking position, the washer is interference-fitted between the locking handle and the side plate, fixing the locking screw to the side plate.

2. The four-station rotating device according to claim 1, characterized in that, The pad block has a stepped groove at one end near the circuit board, and the pressure block has a protrusion at one end near the circuit board. When the push block is in the clamping position, the protrusion is located in the stepped groove.

3. The four-station rotating device according to claim 1, characterized in that, The clamping platform also includes two fixed racks, which are respectively fixed to the main body plate and the connecting rod; the clamp also includes a movable rack, which is movably engaged with the fixed rack, and the movable rack is connected to the base.

4. The four-station rotating device according to claim 3, characterized in that, The clamp also includes a spring clip that connects the movable rack and the base.

5. The four-station rotating device according to claim 3, characterized in that, The clamping platform also includes two scales, which are fixed to the main body plate and the connecting rod respectively, for marking the position of the clamp.

6. A four-station testing device, characterized in that, include: The four-station rotating device, the pre-feeding track conveyor mechanism, the dust-adhesive mechanism, the post-feeding track conveyor mechanism, the loading arm, the alignment mechanism, the testing device, the unloading arm, the marking platform, the multiple receiving platforms, and the discharge arm as described in any one of claims 1-5, wherein the post-feeding track conveyor mechanism, the dust-adhesive mechanism, and the pre-feeding track conveyor mechanism are arranged sequentially on one side of the loading area along the transverse direction; the loading arm is slidably disposed above the post-feeding track conveyor mechanism and the loading area; the alignment mechanism is disposed in the alignment area; the testing device is disposed in the testing area; the marking platform is arranged adjacent to the unloading area along the transverse direction; the multiple receiving platforms and the marking platform are arranged longitudinally; the unloading arm is slidably disposed above the unloading area and the marking platform; and the discharge arm is slidably disposed above the marking platform and the multiple receiving platforms.

7. The four-station testing equipment according to claim 6, characterized in that, The four-station testing equipment also includes two sets of support components, which are located below the loading area and arranged in parallel along the longitudinal direction. Each support component includes: Tray, used to support circuit boards; and, A vertical drive unit, connected to the tray, is used to drive the tray to move in a vertical direction.

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