Chip resistor PCB mounting limiting positioning device

Abstract

The application discloses a chip resistor PCB mounting limiting positioning device, and relates to the technical field of PCB mounting limiting positioning devices.The device comprises a main component, which comprises a bearing seat and an inclined support rod fixedly connected to one side of the bearing seat, and the end of the inclined support rod is fixedly connected with a feeding frame.The device uses a fixed frame to make a second electric push rod telescopic shaft quickly drive a fixed plate to move up and down, and further uses an adjusting motor to quickly drive a connecting frame to adjust the angle, and simultaneously uses a third electric push rod to quickly drive a clamping plate to move, while the PCB body moves on a conveyor belt, so that a trapezoidal extrusion block quickly magnetically attracts and adsorbs an L-shaped pressing plate, a first return spring is extruded by the L-shaped pressing plate, the L-shaped pressing plate rotates around a connecting shaft, one end of the L-shaped pressing plate quickly extrudes and positions the PCB body, and the processing effect of the device is improved to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of PCB mounting positioning and limiting devices, and in particular to a PCB mounting positioning and limiting device for chip resistors. Background Technology

[0002] Chip resistors (also known as surface mount resistors) are one of the most commonly used electronic components in surface mount technology. They are widely used in the circuit boards of various electronic products. In the PCB (printed circuit board) assembly process, chip resistors need to be picked up from the feeder by a pick-and-place machine, accurately mounted on the pads on the PCB surface after visual positioning, and then completed by reflow soldering to achieve electrical connection.

[0003] Regarding the conveying and positioning of PCB boards, when the PCB board moves on the conveyor belt, due to the vibration and uneven friction resistance of the conveyor belt, the PCB board is prone to slight displacement on the conveyor belt, resulting in the accumulation of placement position errors. The positioning mechanism of existing equipment usually clamps and positions the PCB board only after it arrives at the placement station, lacking pre-positioning and guiding functions during the PCB board conveying process. The initial position deviation of the PCB board when it enters the placement station will affect the accuracy and consistency of subsequent clamping and positioning. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the current chip resistor PCB mounting positioning device, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a chip resistor PCB mounting positioning device, which is suitable for solving the problem that the PCB board is prone to slight displacement on the conveyor belt due to the vibration and uneven friction resistance of the conveyor belt, resulting in the accumulation of mounting position errors.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a PCB mounting limiting and positioning device for chip resistors, the PCB mounting limiting and positioning device comprising:

[0008] The main component includes a load-bearing base and an inclined support rod fixedly connected to one side of the load-bearing base. One end of the inclined support rod is fixedly connected to a feeding frame. A support column is fixedly connected to the upper surface of the load-bearing base, and a load-bearing block is fixedly connected to the lower surface of the feeding frame.

[0009] A wafer conveying assembly includes an inclined track frame fixedly connected to the upper surface of the support base and a connecting shaft fixedly connected to the inner surface of the inclined track frame. One side of the inclined track frame is fixedly connected to one side of a support column. A first guide rod is fixedly connected to the upper surface of the support column, and a first T-shaped block is slidably connected inside the first guide rod.

[0010] The supporting compression assembly includes a first return spring fixedly connected to the upper surface of the support base and a conveying groove formed on the upper surface of the support base. A rotating shaft is fixedly connected inside the conveying groove, a conveyor belt is rotatably connected to the outer surface of the rotating shaft, and an auxiliary conveying rail is fixedly connected inside the conveying groove.

[0011] As a preferred embodiment of the chip resistor PCB mounting positioning device of the present invention, wherein: a second guide rail is fixedly connected to one side of the first T-shaped block, a bearing plate is slidably connected to the upper surface of the first guide rail, there are two sets of the first guide rail, and the two sets of first guide rail are symmetrical about the center of the support seat, a second drive motor is slidably connected to the upper surface of the first guide rail, a second T-shaped block is slidably connected inside the second guide rail, and a drive rod is fixedly connected to the upper surface of the second T-shaped block.

[0012] As a preferred embodiment of the chip resistor PCB mounting positioning device of the present invention, wherein: one end of the output shaft of the second drive motor is fixedly connected to a second drive shaft, the outer surface of the second drive shaft is threadedly rotatably connected to the inner surface of the drive rod, one end of the second drive shaft is rotatably connected to one side of the bearing plate, one side of the first guide rail is fixedly connected to a first drive motor, one end of the output shaft of the first drive motor is fixedly connected to a first drive shaft, the outer surface of the first drive shaft is threadedly connected to a first T-shaped block, and the lower surface of the first T-shaped block is fixedly connected to a first electric push rod.

[0013] As a preferred embodiment of the chip resistor PCB mounting limiting and positioning device of the present invention, wherein: a trapezoidal extrusion block is fixedly connected to the lower surface of the first electric push rod; a fixing frame is fixedly connected to one side of the second T-shaped block; a second electric push rod is fixedly connected inside the fixing frame; a mounting plate is fixedly connected to the lower surface of the second electric push rod; a fixing plate is fixedly connected to the lower surface of the mounting plate; an adjusting motor is fixedly connected to the lower surface of the fixing plate; a connecting frame is fixedly connected to one end of the output shaft of the adjusting motor; a sliding groove is provided inside the connecting frame; and a clamping plate is slidably connected inside the sliding groove.

[0014] As a preferred embodiment of the PCB mounting limiting and positioning device for chip resistors described in this invention, the clamping plate is provided with a rubber toothed pad on one side, a connecting frame is fixedly connected to the upper surface of the clamping plate, a third electric push rod is fixedly connected to one side of the connecting frame, a connecting plate is fixedly connected to the upper surface of the connecting frame, one side of the third electric push rod is fixedly connected to one side of the connecting plate, a trapezoidal groove is provided in the inclined track frame, the outer surface of the trapezoidal extrusion block is slidably connected to the trapezoidal groove, both ends of the connecting shaft are fixedly connected to the inner surface of the trapezoidal groove, a rotating plate is rotatably connected to the outer surface of the connecting shaft, and an L-shaped pressure plate is fixedly connected to the lower surface of the rotating plate.

[0015] As a preferred embodiment of the chip resistor PCB mounting limiting and positioning device of the present invention, wherein: a fourth electric push rod is fixedly connected inside the bearing seat, a connecting plate is fixedly connected to the upper surface of the fourth electric push rod, a transmission plate is fixedly connected to one side of the connecting plate, and an insertion plate is fixedly connected to the lower surface of the transmission plate.

[0016] As a preferred embodiment of the chip resistor PCB mounting limiting and positioning device of the present invention, wherein: the outer surface of the insertion plate is slidably connected to the bearing seat, a linkage telescopic rod is fixedly connected to one side of the transmission plate, a hinge rod is fixedly connected to one end of the linkage telescopic rod, and an L-shaped clamping rod is fixedly connected to one side of the linkage telescopic rod.

[0017] As a preferred embodiment of the chip resistor PCB mounting limiting and positioning device of the present invention, the fourth electric push rod is in two sets, and both sets of the fourth electric push rod are symmetrical about the center of the hinge rod; the hinge rod is in two sets, and both sets of the hinge rod are symmetrical about the center of the support seat; the lower surface of the insertion plate is in contact with the unfolding plate.

[0018] As a preferred embodiment of the PCB mounting limiting and positioning device for chip resistors described in this invention, a second reset spring is fixedly connected inside the support base, the upper surface of the second reset spring is fixedly connected to the lower surface of the unfolding plate, a push shaft is fixedly connected inside the unfolding plate, a first support rod is fixedly connected to one end of the push shaft, a U-shaped frame is rotatably connected to one end of the first support rod, and an abutment plate is fixedly connected to one side of the U-shaped frame.

[0019] As a preferred embodiment of the chip resistor PCB mounting positioning device of the present invention, wherein: a second support rod is rotatably connected inside the first support rod, one end of the second support rod is rotatably connected inside the U-shaped frame, the number of abutment plates is two sets, and the two sets of abutment plates are symmetrical about the center of the unfolding plate, the PCB board body is placed on the upper surface of the conveyor belt, and a number of equidistant auxiliary shafts are equidistantly distributed in the auxiliary conveyor rail.

[0020] The beneficial effects of this invention are:

[0021] 1. By using a load-bearing base, tilting support rod, feeding frame, conveying trough, support column, and load-bearing block, the tilting support rod supports the feeding frame. Furthermore, the feeding frame is used to place the wafer. Furthermore, the conveying trough is used to place and support the internal structure of the support extrusion assembly. Furthermore, the support column is used to place and support the internal structure of the wafer conveying assembly, thereby improving the placement effect of the equipment to a certain extent.

[0022] 2. By utilizing an inclined track frame, trapezoidal groove, first drive motor, first guide rail, first T-block, bearing plate, second drive shaft, second electric push rod, second T-block, second guide rail, second drive motor, sliding groove, first electric push rod, and trapezoidal extrusion block, the first drive motor and the second drive motor cooperate with each other, causing the first T-block and the second T-block to move within the first guide rail and the second guide rail respectively. This allows the fixed frame to be adjusted during rapid movement, enabling the subsequent structure to quickly place the wafer on top of the PCB board body, thereby improving the processing effect of the equipment to a certain extent.

[0023] 3. Utilizing a fixed frame, mounting plate, adjusting motor, first drive shaft, L-shaped pressure plate, rotating plate, drive rod, connecting shaft, connecting frame, clamping plate, connecting plate, and third electric push rod, the second electric push rod's telescopic shaft rapidly drives the fixed plate to move up and down. Furthermore, the adjusting motor rapidly drives the connecting frame for angle adjustment, and simultaneously, the third electric push rod rapidly drives the clamping plate to move, thus facilitating the rapid clamping of the wafer to a certain extent. Simultaneously, when the PCB board moves on the conveyor belt, the first electric push rod and the trapezoidal extrusion block can cooperate to quickly magnetically attract the L-shaped pressure plate, causing the first return spring to be squeezed by the L-shaped pressure plate. This causes the L-shaped pressure plate to rotate around the connecting shaft, allowing one end to quickly squeeze and position the PCB board, thereby improving the processing efficiency of the equipment to a certain extent.

[0024] 4. Utilizing a rotating shaft, conveyor belt, auxiliary conveyor rail, PCB board body, first return spring, auxiliary shaft, L-shaped clamping rod, fourth electric push rod, insertion plate, second return spring, unfolding plate, abutment plate, transmission plate, connecting plate, linkage telescopic rod, U-shaped frame, first support rod, push shaft, hinge rod, and second support rod, the fourth electric push rod quickly drives the linkage telescopic rod to move up and down within the auxiliary conveyor rail. This causes one set of L-shaped clamping rods to obstruct the PCB board body, thereby enabling the equipment to quickly clamp the PCB board body to a certain extent. Furthermore, the transmission plate and insertion plate work together to allow the insertion plate to quickly squeeze the unfolding plate. This causes the first and second support rods to work with the push shaft to allow the abutment plate to quickly unfold up and down, thereby providing support for the PCB board body to a certain extent and ensuring its stability during processing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0026] Figure 1 This is a schematic diagram of the overall structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0027] Figure 2 This is a schematic cross-sectional view of the overall structure of the chip resistor PCB mounting limiting and positioning device proposed in this invention.

[0028] Figure 3 This is a schematic diagram of the internal structure of the inclined track frame of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0029] Figure 4 This is a schematic diagram of the chip transport component structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0030] Figure 5 This is a schematic diagram of the support and extrusion assembly structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0031] Figure 6 This is a schematic diagram of the auxiliary conveyor rail distribution structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0032] Figure 7 This is a schematic diagram of the transmission plate distribution structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0033] Figure 8 This is a schematic diagram of the fixed plate distribution structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0034] Figure 9 This is a schematic diagram of the clamping plate distribution structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0035] Figure 10 This is a schematic diagram of the insertion board distribution structure of a chip resistor PCB mounting limiting and positioning device proposed in this invention;

[0036] Figure 11 This is a schematic diagram of the distribution structure of the first and second support rods of a chip resistor PCB mounting limiting and positioning device proposed in this invention.

[0037] Figure 12 This is an enlarged structural diagram of point A of the PCB mounting and positioning device for chip resistors proposed in this invention.

[0038] Figure Descriptions: 100. Main body assembly; 101. Support seat; 102. Inclined support rod; 103. Feed frame; 104. Conveying trough; 105. Support column; 106. Load-bearing block; 200. Wafer conveying assembly; 201. Inclined track frame; 202. Trapezoidal groove; 203. First drive motor; 204. First guide rail; 205. First T-block; 206. Bearing plate; 207. Second drive shaft; 208. Second electric push rod; 209. Second T-block; 210. Second guide rail; 211. Second drive motor; 212. Sliding groove; 213. First electric push rod; 214. Trapezoidal extrusion block; 215. Fixing frame; 216. Mounting plate; 217. Fixing plate; 218. Adjusting motor; 219. First drive shaft; 220. L-shaped... 221. Pressure plate; 222. Rotating plate; 223. Drive rod; 224. Connecting shaft; 225. Connecting frame; 226. Clamping plate; 227. Connecting plate; 228. Third electric push rod; 300. Supporting extrusion assembly; 301. Rotating shaft; 302. Conveyor belt; 303. Auxiliary conveyor rail; 304. PCB board body; 305. First return spring; 306. Auxiliary shaft; 307. L-shaped clamping rod; 308. Fourth electric push rod; 309. Insertion plate; 310. Second return spring; 311. Unfolding plate; 312. Abutment plate; 313. Transmission plate; 314. Connecting plate; 315. Linkage telescopic rod; 316. U-shaped frame; 317. First support rod; 318. Push shaft; 319. Hinge rod; 320. Second support rod. Detailed Implementation

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0042] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0043] Example 1:

[0044] Reference Figure 1 - Figure 12 In one embodiment of the present invention, a chip resistor PCB mounting limiting and positioning device is provided, including a main body component 100, a chip conveying component 200 and a support and extrusion component 300.

[0045] The main component 100 includes a load-bearing base 101 and an inclined support rod 102 fixedly connected to one side of the load-bearing base 101. One end of the inclined support rod 102 is fixedly connected to a feeding frame 103. A support column 105 is fixedly connected to the upper surface of the load-bearing base 101, and a load-bearing block 106 is fixedly connected to the lower surface of the feeding frame 103.

[0046] Furthermore, the wafer conveying assembly 200 includes an inclined track frame 201 fixedly connected to the upper surface of the support base 101 and a connecting shaft 223 fixedly connected to the inner surface of the inclined track frame 201. One side of the inclined track frame 201 is fixedly connected to one side of the support column 105. A first guide rail rod 204 is fixedly connected to the upper surface of the support column 105, and a first T-shaped block 205 is slidably connected inside the first guide rail rod 204.

[0047] Finally, the support compression assembly 300 includes a first return spring 305 fixedly connected to the upper surface of the support base 101 and a conveying groove 104 opened on the upper surface of the support base 101. A rotating shaft 301 is fixedly connected inside the conveying groove 104, a conveyor belt 302 is rotatably connected to the outer surface of the rotating shaft 301, and an auxiliary conveying rail 303 is fixedly connected inside the conveying groove 104.

[0048] Furthermore, a second guide rail 210 is fixedly connected to one side of the first T-block 205, and a bearing plate 206 is slidably connected to the upper surface of the first guide rail 204. There are two sets of first guide rails 204, and both sets of first guide rails 204 are symmetrical about the center of the support seat 101. A second drive motor 211 is slidably connected to the upper surface of the first guide rail 204, and a second T-block 209 is slidably connected inside the second guide rail 210. A drive rod 222 is fixedly connected to the upper surface of the second T-block 209. As the first T-block 205 slides within the first guide rail 204 along the X-axis, the second guide rail 210 fixedly connected to its side moves synchronously with the first T-block 205, realizing the movement of the Y-axis guide rail in the X-axis direction. The position is adjusted in the axial direction; the bearing plate 206 is slidably connected to the upper surface of the first guide rail 204, providing rotational support for the end of the second drive shaft 207; the two sets of first guide rails 204 are symmetrically arranged about the center of the support seat 101 to ensure the stability and synchronicity of movement in the X-axis direction; the second drive motor 211 is slidably connected to the upper surface of the first guide rail 204 and moves synchronously with the first T-block 205, and its output shaft drives the second drive shaft 207 to rotate; the second T-block 209 is slidably connected inside the second guide rail 210 and slides along the Y-axis direction, and the drive rod 222 on its upper surface moves synchronously with the second T-block 209, providing precise two-dimensional planar positioning for the subsequent wafer clamping and placement mechanism.

[0049] Furthermore, a second drive shaft 207 is fixedly connected to one end of the output shaft of the second drive motor 211. The outer surface of the second drive shaft 207 is threadedly rotatably connected to the inner surface of the drive rod 222. One end of the second drive shaft 207 is rotatably connected to one side of the bearing plate 206. A first drive motor 203 is fixedly connected to one side of the first guide rail 204. A first drive shaft 219 is fixedly connected to one end of the output shaft of the first drive motor 203. The outer surface of the first drive shaft 219 is threadedly connected to the first T-block 205. A first electric push rod 213 is fixedly connected to the lower surface of the first T-block 205. The second drive shaft 207 is driven to rotate by the second drive motor 211. The second drive shaft 207 drives the drive rod 222 and the second T-block 209 along the second guide rail 210 in a Y-direction motion. The reciprocating motion in the Y-axis direction enables precise positioning of the wafer gripping mechanism in the Y-axis direction; the bearing plate 206 provides rotational support for the end of the second drive shaft 207, ensuring coaxiality and stability during the rotation of the second drive shaft 207; the first drive motor 203 drives the first T-block 205 to reciprocate along the first guide rail 204 in the X-axis direction via the first drive shaft 219, enabling precise positioning of the wafer gripping mechanism in the X-axis direction; the first electric push rod 213, fixed on the lower surface of the first T-block 205, moves synchronously with the first T-block 205, and its telescopic shaft drives the trapezoidal extrusion block 214 to rise and fall, realizing the pre-positioning and guiding function of the PCB board during the conveying process, and correcting its position before the PCB board enters the mounting station to ensure the accuracy and consistency of subsequent clamping and positioning.

[0050] Furthermore, a trapezoidal pressing block 214 is fixedly connected to the lower surface of the first electric push rod 213, and a fixing frame 215 is fixedly connected to one side of the second T-shaped block 209. A second electric push rod 208 is fixedly connected inside the fixing frame 215. A mounting plate 216 is fixedly connected to the lower surface of the second electric push rod 208, and a fixing plate 217 is fixedly connected to the lower surface of the mounting plate 216. An adjusting motor 218 is fixedly connected to the lower surface of the fixing plate 217, and a connecting frame 224 is fixedly connected to one end of the output shaft of the adjusting motor 218. A sliding groove 212 is provided inside the connecting frame 224, and a clamping plate 226 is slidably connected inside the sliding groove 212. The trapezoidal pressing block 214 is fixed to the lower end of the telescopic shaft of the first electric push rod 213 and moves up and down with the lifting and lowering of the first electric push rod 213. Its trapezoidal inclined surface and the trapezoidal groove 214 are connected to the lower end of the telescopic shaft of the first electric push rod 213. 02. During the descent, the rotating plate 221 is squeezed, causing the L-shaped pressure plate 220 to rotate and apply a pre-positioning pressure to the PCB board body 304. The fixed frame 215 is fixed to one side of the second T-shaped block 209 and moves with the second T-shaped block 209 in the Y-axis direction, providing installation support for the second electric push rod 208. The second electric push rod 208 drives the mounting plate 216 and the fixed plate 217 to rise and fall through telescopic drive, adjusting the vertical distance between the clamping plate 226 and the PCB board. The adjusting motor 218 is fixed to the lower surface of the fixed plate 217, and its output shaft drives the connecting frame 224 to rotate around the vertical axis, adjusting the pick-up angle of the chip resistor. The sliding groove 212 opened in the connecting frame 224 provides a horizontal sliding guide for the clamping plate 226, allowing the clamping plate 226 to reciprocate within the sliding groove 212.

[0051] Furthermore, a rubber toothed pad is provided on one side of the clamping plate 226, and a connecting frame 225 is fixedly connected to the upper surface of the clamping plate 226. A third electric push rod 228 is fixedly connected to one side of the connecting frame 225. A connecting plate 227 is fixedly connected to the upper surface of the connecting frame 224, and one side of the third electric push rod 228 is fixedly connected to one side of the connecting plate 227. A trapezoidal groove 202 is provided in the inclined track frame 201, and the outer surface of the trapezoidal extrusion block 214 is slidably connected in the trapezoidal groove 202. The two ends of the connecting shaft 223 are fixed. A rotating plate 221 is rotatably connected to the outer surface of the connecting shaft 223, which is fixedly connected to the inner surface of the trapezoidal groove 202. An L-shaped pressure plate 220 is fixedly connected to the lower surface of the rotating plate 221. A rubber toothed pad is provided on the clamping surface of the clamping plate 226 to provide flexible contact and anti-slip effect when clamping the chip resistor, avoiding damage to the surface of the resistor element. A connecting frame 225 is fixed to the upper surface of the clamping plate 226 and moves synchronously with the clamping plate 226, providing a connection point for the third electric push rod 228. One end of the push rod 228 is fixedly connected to the connecting frame 225, and the other end is fixedly connected to the connecting plate 227. The clamping plate 226 is reciprocated along the sliding groove 212 by telescopic drive to realize the clamping and release of the chip resistor. The trapezoidal groove 202 is opened in the inclined track frame 201 to provide sliding guidance for the trapezoidal extrusion block 214. The two ends of the connecting shaft 223 are fixed to the inner surface of the trapezoidal groove 202 to provide rotational support for the rotating plate 221. The rotating plate 221 rotates around the connecting shaft 223, and the L-shaped pressure plate 220 fixed on its lower surface swings up and down with the rotation of the rotating plate 221. When the trapezoidal extrusion block 214 descends, it squeezes the rotating plate 221 to make the L-shaped pressure plate 220 rotate downward, and applies pre-positioning pressure to the PCB board body 304 to realize the pre-positioning and guiding function of the PCB board body 304 during the conveying process. This effectively improves the problem of slight offset of the PCB board body 304 caused by the vibration of the conveyor belt and uneven frictional resistance, and ensures the accuracy and consistency of subsequent clamping and positioning.

[0052] Working principle:

[0053] By using a load-bearing base, tilting support rod, feeding frame, conveying trough, support column, and load-bearing block, the tilting support rod supports the feeding frame. Furthermore, the feeding frame is used to perform anti-corrosion treatment on the wafer. Furthermore, the conveying trough is used to place and support the internal structure of the support extrusion assembly. Furthermore, the support column is used to place and support the internal structure of the wafer conveying assembly, thereby improving the placement effect of the equipment to a certain extent.

[0054] By utilizing an inclined track frame, trapezoidal groove, first drive motor, first guide rail, first T-block, bearing plate, second drive shaft, second electric push rod, second T-block, second guide rail, second drive motor, sliding groove, first electric push rod, and trapezoidal extrusion block, the first drive motor and the second drive motor cooperate with each other, causing the first T-block and the second T-block to move within the first guide rail and the second guide rail respectively. This allows the fixed frame to be adjusted during rapid movement, enabling the subsequent structure to quickly place the wafer on top of the PCB board body, thereby improving the processing effect of the equipment to a certain extent.

[0055] The system utilizes a fixed frame, mounting plate, adjusting motor, first drive shaft, L-shaped pressure plate, rotating plate, drive rod, connecting shaft, connecting frame, clamping plate, connecting plate, and third electric push rod. The second electric push rod's telescopic shaft rapidly drives the fixed plate to move up and down. Furthermore, the adjusting motor rapidly adjusts the angle of the connecting frame, while the third electric push rod simultaneously moves the clamping plate. This facilitates rapid wafer clamping to a certain extent. Simultaneously, when the PCB board moves on the conveyor belt, the first electric push rod cooperates with the trapezoidal extrusion block, which magnetically attracts the L-shaped pressure plate, causing the first return spring to be compressed by the L-shaped pressure plate. This causes the L-shaped pressure plate to rotate around the connecting shaft, allowing one end to quickly press and position the PCB board, thus improving the processing efficiency of the equipment to a certain extent.

[0056] Utilizing a rotating shaft, conveyor belt, auxiliary conveyor rail, PCB board body, first return spring, auxiliary shaft, L-shaped clamping rod, fourth electric push rod, insertion plate, second return spring, unfolding plate, abutment plate, transmission plate, connecting plate, linkage telescopic rod, U-shaped frame, first support rod, push shaft, hinge rod, and second support rod, the fourth electric push rod quickly drives the linkage telescopic rod to move up and down within the auxiliary conveyor rail. This causes one set of L-shaped clamping rods to obstruct the PCB board body, thereby enabling the equipment to quickly clamp the PCB board body to a certain extent. Furthermore, the transmission plate and insertion plate work together to allow the insertion plate to quickly squeeze the unfolding plate. This causes the first and second support rods to work with the push shaft to allow the abutment plate to quickly unfold up and down, thereby providing support for the PCB board body to a certain extent and ensuring its stability during processing.

[0057] Example 2:

[0058] Reference Figure 4 - Figure 7 and Figure 10 - Figure 12The difference from Embodiment 1 is that: a fourth electric push rod 308 is fixedly connected inside the load-bearing base 101; a connecting plate 314 is fixedly connected to the upper surface of the fourth electric push rod 308; a transmission plate 313 is fixedly connected to one side of the connecting plate 314; and an insertion plate 309 is fixedly connected to the lower surface of the transmission plate 313. The fourth electric push rod 308 is fixed inside the load-bearing base 101, and its telescopic axis extends upward and is fixedly connected to the connecting plate 314. The telescopic drive lifts and lowers the connecting plate 314 and the transmission plate 313 as a whole. The connecting plate 314 is fixed to the fourth electric push rod. The telescopic shaft end of 308 transmits the driving force of the fourth electric push rod 308 to the transmission plate 313 and the insertion plate 309; the transmission plate 313 is fixed to one side of the joint plate 314 and rises and falls synchronously with the joint plate 314. Its lower surface is fixedly connected to the insertion plate 309, transmitting the lifting motion to the insertion plate 309; the insertion plate 309 is slidably connected inside the support seat 101 and rises and falls vertically along the guide channel inside the support seat 101 under the drive of the fourth electric push rod 308. The opening and closing actions of the opening plate 311 are controlled by the contact and separation between its lower end and the unfolding plate 311.

[0059] Furthermore, the outer surface of the insertion plate 309 is slidably connected to the load-bearing seat 101. A linkage telescopic rod 315 is fixedly connected to one side of the transmission plate 313. A hinge rod 319 is fixedly connected to one end of the linkage telescopic rod 315, and an L-shaped clamping rod 307 is fixedly connected to one side of the linkage telescopic rod 315. The sliding fit between the outer surface of the insertion plate 309 and the guide channel within the load-bearing seat 101 ensures the linear motion accuracy of the insertion plate 309 during lifting and lowering, preventing skewing. One end of the linkage telescopic rod 315 is fixed to the transmission plate 313 and rises and falls synchronously with the transmission plate 313. Its other end is fixedly connected to the hinge rod 319, transmitting the lifting and lowering motion to the hinge rod 319. The hinge rod 319... Driven by the telescopic rod 315, the L-shaped clamp 307 is raised and lowered within the auxiliary conveyor rail 303. One side of the L-shaped clamp 307 is fixedly connected to the telescopic rod 315. During the raising and lowering process, the end of the L-shaped clamp 307 forms a blocking or releasing control on the PCB board body 304 on the conveyor belt 302. When the L-shaped clamp 307 rises, its end is higher than the upper surface of the conveyor belt 302, blocking and positioning the PCB board body 304. When the L-shaped clamp 307 falls, its end is lower than the upper surface of the conveyor belt 302, releasing the PCB board body 304 so that it can continue to be conveyed forward, thereby realizing the position control and pre-positioning function of the PCB board body 304 during the conveying process.

[0060] Furthermore, there are two sets of fourth electric push rods 308, both sets being symmetrical about the hinge rod 319. There are also two sets of hinge rods 319, both sets being symmetrical about the support base 101. The lower surface of the insertion plate 309 contacts the unfolding plate 311. The symmetrical arrangement of the two sets of fourth electric push rods 308 about the hinge rod 319 provides a balanced lifting driving force for the combined plate 314 and the transmission plate 313, ensuring that the transmission plate 313 remains horizontal during lifting and avoiding tilting caused by unilateral driving. The hinge rods 319 are arranged symmetrically about the center of the support base 101, so that the L-shaped clamps 307 on both sides rise and fall synchronously, ensuring that the blocking and releasing actions on both sides of the PCB board body 304 are consistent. The lower surface of the insertion plate 309 keeps in contact with the upper surface of the unfolding plate 311. When the insertion plate 309 descends with the transmission plate 313, its lower surface presses down on the unfolding plate 311, driving the unfolding plate 311 to move downward and unfold. When the insertion plate 309 rises, the unfolding plate 311 returns to its original position under the elastic force of the second return spring 310, realizing the folding of the unfolding plate 311.

[0061] Furthermore, a second return spring 310 is fixedly connected inside the support base 101. The upper surface of the second return spring 310 is fixedly connected to the lower surface of the unfolding plate 311. A push shaft 318 is fixedly connected inside the unfolding plate 311. A first support rod 317 is fixedly connected to one end of the push shaft 318. A U-shaped frame 316 is rotatably connected to one end of the first support rod 317. An abutment plate 312 is fixedly connected to one side of the U-shaped frame 316. The lower end of the second return spring 310 is fixed inside the support base 101, and the upper end is fixedly connected to the lower surface of the unfolding plate 311. When the unfolding plate 311 is pressed downward by the insertion plate 309, it is compressed and stores elastic potential energy. When the insertion plate 309 rises, it releases the elastic potential energy. After compression, the elastic potential energy released pushes the unfolding plate 311 to return to its original position. The push shaft 318 is fixed inside the unfolding plate 311 and moves synchronously with the rise and fall of the unfolding plate 311. One end of the push shaft 318 is fixedly connected to the first support rod 317, transmitting the lifting motion to the first support rod 317. One end of the first support rod 317 is fixedly connected to the push shaft 318, and the other end is rotatably connected to the U-shaped frame 316. When the unfolding plate 311 descends, the first support rod 317 pushes the U-shaped frame 316 to unfold outward. One side of the U-shaped frame 316 is fixedly connected to the abutment plate 312, which moves to both sides as the U-shaped frame 316 unfolds, so that the abutment plate 312 contacts and supports the PCB board body 304 from both sides.

[0062] Furthermore, a second support rod 320 is rotatably connected inside the first support rod 317. One end of the second support rod 320 is rotatably connected inside the U-shaped frame 316. There are two sets of abutment plates 312, and both sets of abutment plates 312 are symmetrical about the center of the unfolding plate 311. A PCB board body 304 is placed on the upper surface of the conveyor belt 302. Several equidistant auxiliary shafts 306 are distributed in the auxiliary conveyor rail 303. One end of the second support rod 320 is rotatably connected to the first support rod 317, and the other end is rotatably connected to the U-shaped frame 316, forming a scissor-type linkage mechanism with the first support rod 317. When the unfolding plate 311 is raised and lowered, it assists in driving the unfolding and retraction of the U-shaped frame 316, ensuring the synchronous and symmetrical movement of the two sets of abutment plates 312. The two sets of abutment plates 312 are arranged symmetrically about the center of the unfolding plate 311. When unfolding, they move from P... Both sides of the PCB board body 304 simultaneously contact and apply support force, ensuring the PCB board body 304 maintains stable flatness at the mounting station and preventing bending deformation caused by local support force. Auxiliary shafts 306 are equidistantly distributed within the auxiliary conveyor rails 303, with their outer surfaces rolling contact with the lower surface of the PCB board body 304. This provides rolling support during the conveying process of the PCB board body 304, reducing conveying friction resistance and improving conveying stability.

[0063] Working principle: First, the chip resistor element is placed in the feed frame 103. The feed frame 103 is fixed to one side of the support base 101 by the inclined support rod 102. The support block 106 provides auxiliary support for the feed frame 103. Under the action of gravity, the chip resistor slides along the inclined bottom surface of the feed frame 103 to the picking position of the chip conveying assembly 200. The two-dimensional planar positioning mechanism of the chip conveying assembly 200 starts to operate, driving the chip clamping assembly to move to the picking position. The first drive motor 203 drives the first T-block 205 to move along the first guide rail 204 in the X-axis direction through the first drive shaft 219. The first T-block 205 drives the second guide rail 210 and the second drive motor 211 to move synchronously, realizing the position adjustment of the Y-axis guide rail in the X-axis direction. The second drive motor 211 drives the second T-block 209 to move along the second guide rail 210 in the Y-axis direction via the second drive shaft 207. The second T-block 209 drives the fixed frame 215 and the clamping assembly to move synchronously, so that the clamping assembly is precisely aligned with the position of the wafer resistor. The second electric push rod 208 drives the mounting plate 216 and the fixed plate 217 to descend, so that the connecting frame 224 approaches the wafer resistor. The third electric push rod 228 extends and retracts to drive the clamping plate 226 to move along the sliding groove 212 toward the wafer resistor. The rubber tooth pad on one side of the clamping plate 226 contacts the wafer resistor and clamps it. The adjusting motor 218 can drive the connecting frame 224 to rotate around the vertical axis as needed to adjust the clamping angle of the wafer resistor and compensate for the posture deviation of the wafer resistor in the feeder.

[0064] Secondly, the PCB board body 304 is carried by the conveyor belt 302 and conveyed forward along the conveyor groove 104. The rotating shaft 301 drives the conveyor belt 302 to rotate cyclically. The equidistant auxiliary shafts 306 in the auxiliary conveyor rail 303 roll in contact with the lower surface of the PCB board body 304, providing low-friction rolling support and reducing frictional resistance and vibration during the conveying process. Before the PCB board body 304 enters the mounting station, the first electric push rod 213 drives the trapezoidal extrusion block 214 to descend along the trapezoidal groove 202. The trapezoidal inclined surface of the trapezoidal extrusion block 214 contacts the upper surface of the rotating plate 221 and applies downward extrusion force, causing the rotating plate 221 to rotate around the connecting shaft 223. The L-shaped pressure plate 220, which is fixed on the lower surface, swings downward as the rotating plate 221 rotates. Its end contacts the upper surface edge of the PCB board body 304, applying a downward prepositioning pressure to the PCB board body 304. This prepositioning pressure presses the PCB board body 304 against the surface of the conveyor belt 302, eliminating the slight jumps and offsets caused by the vibration of the conveyor belt and uneven frictional resistance, so that the PCB board body 304 enters the mounting station in the correct posture and position. The first reset spring 305 is compressed when the L-shaped pressure plate 220 is pressed. When the trapezoidal extrusion block 214 rises, the first reset spring 305 releases elastic potential energy to push the rotating plate 221 and the L-shaped pressure plate 220 to reset.

[0065] Secondly, when the PCB board body 304 is conveyed to the mounting station, the positioning mechanism of the support extrusion assembly 300 is activated to precisely position and stably support the PCB board body 304. The fourth electric push rod 308 is activated, and its telescopic axis pushes the connecting plate 314 and the transmission plate 313 upward. The transmission plate 313 drives the linkage telescopic rod 315 to rise synchronously. The linkage telescopic rod 315 drives the L-shaped clamping rod 307 to rise within the auxiliary conveyor rail 303 through the hinge rod 319. The end of the L-shaped clamping rod 307 is higher than the upper surface of the conveyor belt 302, forming a support for the forward direction of the PCB board body 304 from both sides. The fourth electric push rod 308 rises, and the insertion plate 309 fixed on the lower surface of the transmission plate 313 rises synchronously with the transmission plate 313. The lower end of the insertion plate 309 separates from the unfolding plate 311. At this time, the second reset spring 310 releases the elastic potential energy stored in the compression, pushing the unfolding plate 311 to move upward and reset. The unfolding plate 311 drives the push shaft 318 to rise synchronously. The push shaft 318 drives the U-shaped frame 316 to unfold to both sides through the scissor-type linkage mechanism composed of the first support rod 317 and the second support rod 320.

[0066] Then, the U-shaped frame 316 drives the abutment plate 312 to move to both sides, providing support from the bottom sides of the PCB board body 304. The two sets of abutment plates 312 are symmetrically arranged about the center of the unfolding plate 311. When unfolding, they simultaneously contact the lower surface of the PCB board body 304 from both sides, so that the PCB board body 304 maintains a stable flatness at the mounting station and avoids bending deformation caused by local support force. When it is necessary to release the PCB board body 304 to continue forward conveying, the fourth electric push rod 308 retracts in the opposite direction, the transmission plate 313 descends, the insertion plate 309 presses the unfolding plate 311 downward, the second reset spring 310 is compressed, the unfolding plate 311 drives the abutment plate 312 to close, and the L-shaped clamp 307 descends to below the upper surface of the conveyor belt 302, releasing the obstruction and support on the PCB board body 304, and the PCB board body 304 continues to be conveyed forward.

[0067] Finally, after the PCB board body 304 is positioned and supported stably, the two-dimensional planar positioning mechanism of the chip transport assembly 200 moves the clamping plate 226 holding the chip resistor to the predetermined mounting position above the PCB board body 304. The second electric push rod 208 drives the clamping plate 226 to descend, so that the chip resistor is close to the pad position on the surface of the PCB board body 304. The third electric push rod 228 extends and retracts in the opposite direction, and the clamping plate 226 releases the chip resistor and places it on the pad to complete the mounting. After the mounting is completed, the clamping plate 226 rises and resets, and the chip transport assembly 200 returns to the picking position to pick up the next chip resistor. The positioning mechanism of the support and pressing assembly 300 releases the PCB board body 304 as needed, so that it continues to be transported forward to the next station.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A PCB mounting and positioning device for chip resistors, characterized in that, The PCB mounting limiting and positioning device includes: The main component (100) includes a load-bearing base (101) and an inclined support rod (102) fixedly connected to one side of the load-bearing base (101). One end of the inclined support rod (102) is fixedly connected to a feeding frame (103). A support column (105) is fixedly connected to the upper surface of the load-bearing base (101), and a load-bearing block (106) is fixedly connected to the lower surface of the feeding frame (103). The wafer delivery assembly (200) includes an inclined track frame (201) fixedly connected to the upper surface of the support base (101) and a connecting shaft (223) fixedly connected to the inner surface of the inclined track frame (201). One side of the inclined track frame (201) is fixedly connected to one side of the support column (105). A first guide rod (204) is fixedly connected to the upper surface of the support column (105). A first T-shaped block (205) is slidably connected inside the first guide rod (204). The support compression assembly (300) includes a first return spring (305) fixedly connected to the upper surface of the support base (101) and a conveying groove (104) opened on the upper surface of the support base (101). A rotating shaft (301) is fixedly connected in the conveying groove (104), and a conveyor belt (302) is rotatably connected to the outer surface of the rotating shaft (301). An auxiliary conveying rail (303) is fixedly connected in the conveying groove (104).

2. The PCB mounting positioning and limiting device for chip resistors according to claim 1, characterized in that: A second guide rail rod (210) is fixedly connected to one side of the first T-shaped block (205). A bearing plate (206) is slidably connected to the upper surface of the first guide rail rod (204). There are two sets of the first guide rail rods (204), and the two sets of first guide rail rods (204) are symmetrical about the center of the load-bearing seat (101). A second drive motor (211) is slidably connected to the upper surface of the first guide rail rod (204). A second T-shaped block (209) is slidably connected inside the second guide rail rod (210). A drive rod (222) is fixedly connected to the upper surface of the second T-shaped block (209).

3. The PCB mounting positioning and limiting device for chip resistors according to claim 2, characterized in that: The output shaft of the second drive motor (211) is fixedly connected to a second drive shaft (207). The outer surface of the second drive shaft (207) is threaded and rotatably connected to the inner surface of the drive rod (222). One end of the second drive shaft (207) is rotatably connected to one side of the bearing plate (206). The first drive motor (203) is fixedly connected to one side of the first guide rail rod (204). The output shaft of the first drive motor (203) is fixedly connected to a first drive shaft (219). The outer surface of the first drive shaft (219) is threaded and connected to the inside of the first T-block (205). The lower surface of the first T-block (205) is fixedly connected to a first electric push rod (213).

4. The PCB mounting positioning and limiting device for chip resistors according to claim 3, characterized in that: A trapezoidal extrusion block (214) is fixedly connected to the lower surface of the first electric push rod (213). A fixed frame (215) is fixedly connected to one side of the second T-shaped block (209). A second electric push rod (208) is fixedly connected inside the fixed frame (215). A mounting plate (216) is fixedly connected to the lower surface of the second electric push rod (208). A fixed plate (217) is fixedly connected to the lower surface of the mounting plate (216). An adjusting motor (218) is fixedly connected to the lower surface of the fixed plate (217). A connecting frame (224) is fixedly connected to one end of the output shaft of the adjusting motor (218). A sliding groove (212) is opened inside the connecting frame (224). A clamping plate (226) is slidably connected inside the sliding groove (212).

5. The PCB mounting positioning and limiting device for chip resistors according to claim 4, characterized in that: A rubber toothed pad is provided on one side of the clamping plate (226). A connecting frame (225) is fixedly connected to the upper surface of the clamping plate (226). A third electric push rod (228) is fixedly connected to one side of the connecting frame (225). A connecting plate (227) is fixedly connected to the upper surface of the connecting frame (224). One side of the third electric push rod (228) is fixedly connected to one side of the connecting plate (227). A trapezoidal groove (202) is provided in the inclined track frame (201). The outer surface of the trapezoidal extrusion block (214) is slidably connected to the trapezoidal groove (202). Both ends of the connecting shaft (223) are fixedly connected to the inner surface of the trapezoidal groove (202). A rotating plate (221) is rotatably connected to the outer surface of the connecting shaft (223). An L-shaped pressure plate (220) is fixedly connected to the lower surface of the rotating plate (221).

6. The PCB mounting positioning and limiting device for chip resistors according to claim 1, characterized in that: A fourth electric push rod (308) is fixedly connected inside the load-bearing seat (101). A connecting plate (314) is fixedly connected to the upper surface of the fourth electric push rod (308). A transmission plate (313) is fixedly connected to one side of the connecting plate (314). An insertion plate (309) is fixedly connected to the lower surface of the transmission plate (313).

7. The PCB mounting positioning and limiting device for chip resistors according to claim 6, characterized in that: The outer surface of the insertion plate (309) is slidably connected to the load-bearing seat (101). A linkage telescopic rod (315) is fixedly connected to one side of the transmission plate (313). A hinge rod (319) is fixedly connected to one end of the linkage telescopic rod (315). An L-shaped clamp rod (307) is fixedly connected to one side of the linkage telescopic rod (315).

8. The PCB mounting positioning and limiting device for chip resistors according to claim 7, characterized in that: There are two sets of the fourth electric push rods (308), and both sets of the fourth electric push rods (308) are symmetrical about the center of the hinge rod (319). There are two sets of the hinge rods (319), and both sets of the hinge rods (319) are symmetrical about the center of the support seat (101). The lower surface of the insertion plate (309) is in contact with the unfolding plate (311).

9. The PCB mounting positioning and limiting device for chip resistors according to claim 8, characterized in that: A second return spring (310) is fixedly connected inside the load-bearing seat (101). The upper surface of the second return spring (310) is fixedly connected to the lower surface of the unfolding plate (311). A push shaft (318) is fixedly connected inside the unfolding plate (311). A first support rod (317) is fixedly connected to one end of the push shaft (318). A U-shaped frame (316) is rotatably connected to one end of the first support rod (317). An abutment plate (312) is fixedly connected to one side of the U-shaped frame (316).

10. A chip resistor PCB mounting positioning and limiting device according to claim 9, characterized in that: The first support rod (317) is rotatably connected to the second support rod (320), one end of the second support rod (320) is rotatably connected to the U-shaped frame (316), the number of the abutment plates (312) is two sets, and the two sets of abutment plates (312) are symmetrical about the center of the unfolding plate (311). The PCB board body (304) is placed on the upper surface of the conveyor belt (302), and a number of equidistant auxiliary shafts (306) are equidistantly distributed in the auxiliary conveyor rail (303).

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