Manual newspaper button circuit board assembling device

Abstract

The utility model discloses a manual alarm button circuit board assembling device, and belongs to the field of automation equipment. The utility model relates to a manual newspaper button circuit board assembling device which comprises a bottom plate, a middle frame conveying track, a middle frame conveying mechanism, a circuit board assembling mechanism, a circuit board placing table and a pin screwing mechanism. The circuit board assembling mechanism and the pin screwing mechanism are used for achieving placement and pin screwing fixing of the circuit board on the middle frame, automatic assembling of the circuit board on the middle frame is achieved, production efficiency is improved, uncontrollability of manual assembling quality is reduced, and stability and consistency of product quality are improved; moreover, the circuit board is pressed into the middle frame through the spring pins during assembly, the structure is simple and compact, the assembly precision is high, the stability is good, and it is guaranteed that the circuit board is installed in place on the middle frame.

Description

Technical Field

[0001] The utility model relates to a product assembly mechanism, more specifically, to a hand alarm button circuit board assembly device. Background Art

[0002] Fire manual alarm buttons (referred to as "manual alarm buttons") are very common in many high-rise residential buildings, office buildings and other public places. Pressing them can sound the alarm and are generally used in the event of a sudden fire or danger.

[0003] The manual alarm button is essentially a switch that controls the operation of a motor or other electrical equipment by connecting or disconnecting a control circuit. It is generally composed of electrical components such as a base, a middle frame, a box cover and a circuit board. The box cover is buckled on the base, and electrical components such as the circuit board are installed on the middle frame. The middle frame is fixed between the box cover and the base. Figure 1 and Figure 2 The illustrated structure is an assembly structure of a circuit board on a middle frame in a hand alarm button. The circuit board 102 is fixed on the middle frame 101 through six sheet-shaped pins 103. The middle frame 101 is provided with a positioning column 104, and a positioning hole 105 is provided at a corresponding position of the circuit board 102 to ensure that the circuit board 102 and the middle frame 101 are accurately positioned. In addition, a plug hole 106 is also provided on the middle frame 101, and the lower part of the pin 103 can be inserted into the corresponding plug hole 106. A bar hole 107 is also provided at a corresponding position of the circuit board 102. After the circuit board 102 is installed on the middle frame 101, the upper part of the pin 103 passes through the corresponding bar hole 107. At the same time, a screwable locking portion 108 is provided at the top of the pin 103. The circuit board 102 is fixed by screwing the locking portion 108, and the circuit connection is achieved at the same time.

[0004] In the actual assembly process, the installation of the circuit board on the middle frame is divided into the front-end pin installation process and the back-end circuit board installation process. At present, the assembly of the circuit board on the middle frame is mainly completed manually, but the manual assembly operation is cumbersome and the work efficiency is low. The quality stability of manual screwing is also poor, which easily leads to problems such as poor electrical connection between the circuit board and the pins. Summary of the invention

[0005] 1. Technical problems to be solved by the utility model

[0006] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and provide a hand alarm button circuit board assembly device. The technical solution of the utility model is adopted, a middle frame conveying mechanism is used to realize the conveying of the middle frame on the conveying track, a circuit board assembly mechanism and a foot screwing mechanism are used to realize the placement of the circuit board on the middle frame and the fixing of the foot screwing, thereby realizing the automatic assembly of the circuit board on the middle frame, improving the production efficiency, reducing the uncontrollability of the manual assembly quality, and improving the stability and consistency of the product quality; and, when assembling the circuit board, the spring pin is used to press it into the middle frame, which not only has a simple and compact structure, but also has high assembly accuracy and good stability, thereby ensuring that the circuit board is installed in place on the middle frame.

[0007] 2. Technical solution

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0009] The utility model discloses a hand-report button circuit board assembly device, comprising a bottom plate, a middle frame conveying track, a middle frame conveying mechanism, a circuit board assembly mechanism, a circuit board placement table and a foot-tightening mechanism, wherein the middle frame conveying track, the middle frame conveying mechanism, the circuit board assembly mechanism, the circuit board placement table and the foot-tightening mechanism are respectively mounted on the bottom plate, the middle frame conveying mechanism is arranged on one side of the middle frame conveying track, and is used to control the movement of the middle frame on the middle frame conveying track; the middle frame conveying track is provided with a circuit board installation station and a foot-tightening station, the circuit board assembly mechanism is arranged at the circuit board installation station, and is used to grab the circuit board on the circuit board placement table and install it on the corresponding middle frame of the middle frame conveying track; the foot-tightening mechanism is arranged at the foot-tightening station, and is used to screw the pins of the middle frame on which the circuit board is installed to fix the circuit board; wherein,

[0010] The circuit board assembly mechanism has a clamping jaw assembly that can move laterally and vertically, and the clamping jaw assembly includes two clamping jaws that can open and close and are arranged opposite to each other. A spring pin is also provided between the two clamping jaws, and the lower end of the spring pin is lower than the clamping parts of the two clamping jaws in a natural state. When the clamping jaw assembly grabs the circuit board from the circuit board placement table, the spring pin is compressed by the circuit board; when the clamping jaw assembly places the circuit board above the middle frame and releases the circuit board, the spring pin applies elastic downward pressure to the circuit board to press the circuit board into the middle frame.

[0011] Furthermore, a positioning pin capable of positioning and cooperating with a corresponding hole on the circuit board is provided between the two clamping jaws, and the lower end of the positioning pin is lower than the clamping parts of the two clamping jaws.

[0012] Furthermore, the two clamping jaws are respectively arranged on a clamping jaw cylinder, a fixing plate is provided at the lower part of the cylinder body of the clamping jaw cylinder, and the spring pin and the positioning pin are respectively installed on the fixing plate.

[0013] Furthermore, the clamping jaw assembly is mounted on a lifting seat plate, and the lifting seat plate is slidably mounted on the transverse seat plate through a vertical guide rail, and a lifting driving cylinder is provided on the transverse seat plate, and a driving end of the lifting driving cylinder is connected to the lifting seat plate, and the clamping jaw assembly is driven by the lifting driving cylinder to move vertically; the transverse seat plate is mounted on the driving end of the transverse driving cylinder, and the transverse driving cylinder is mounted on a fixed seat plate, and the fixed seat plate is fixed to the base plate through a column.

[0014] Furthermore, the circuit board placement table is arranged on one side of the middle frame conveying track, including a seat plate, a positioning column and a support column, the positioning column and the support column are respectively installed on the seat plate, the positioning column is higher than the support column and is distributed on the periphery of the support column for positioning the circuit board.

[0015] Furthermore, the foot screwing mechanism includes a guide column, a fixed mounting plate, a lifting mounting plate, a lifting control cylinder, a foot screwing drive cylinder, a rack, a gear set and a screwing head, the guide column is vertically fixed on the base plate, the fixed mounting plate is fixed on the top of the guide column, the lifting mounting plate is slidably mounted on the guide column, the lifting control cylinder is fixed on the fixed mounting plate, and the driving end of the lifting control cylinder is connected to the lifting mounting plate through a connecting frame; the foot screwing drive cylinder is mounted on the lifting mounting plate, the rack is mounted on the driving end of the foot screwing drive cylinder, the rack is meshed with the gear set for transmission, the screwing head is arranged on the axle of the corresponding gear in the gear set, and the lower end of the screwing head has a screwing groove.

[0016] Furthermore, the gear set includes a driving gear, a transmission gear, an intermediate gear and a driven pinion gear, the rack is meshed with the driving gear, the driving gear is meshed with the transmission gear, the intermediate gear is coaxially arranged with the transmission gear, the driven pinion gear is arranged on the outer periphery of the intermediate gear and meshed with the intermediate gear, and the screwing head is coaxially fixed on the driven pinion gear.

[0017] Furthermore, the middle frame conveying mechanism includes a mounting seat, a fixed guide rail, a sliding seat, an advance and retreat cylinder, a conveying cylinder, a fixed slider, a long guide rail and a shift fork. The mounting seat is fixed on the base plate, and the sliding seat is mounted on the mounting seat through the fixed guide rail in a direction perpendicular to the middle frame conveying track. The advance and retreat cylinder is mounted on the mounting seat, and the driving end of the advance and retreat cylinder is connected to the sliding seat; the conveying cylinder is mounted on the sliding seat in a direction parallel to the middle frame conveying track, and the driving end of the conveying cylinder is connected to the long guide rail. The long guide rail is mounted on the sliding seat in a direction parallel to the middle frame conveying track through the fixed slider, and two or more shift forks are provided at equal intervals on the long guide rail.

[0018] Furthermore, the shift fork has a U-shaped notch capable of accommodating the middle frame.

[0019] Furthermore, the middle frame conveying track is fixed on the bottom plate through a supporting column, and a track groove for positioning and supporting the middle frame is provided on the middle frame conveying track.

[0020] 3. Beneficial effects

[0021] Compared with the existing known technologies, the technical solution provided by the utility model has the following beneficial effects:

[0022] (1) The utility model discloses a hand-held alarm button circuit board assembly device, which includes a bottom plate, a middle frame conveying track, a middle frame conveying mechanism, a circuit board assembly mechanism, a circuit board placement table and a foot screwing mechanism. The middle frame conveying mechanism is used to realize the conveyance of the middle frame on the conveying track, and the circuit board assembly mechanism and the foot screwing mechanism are used to realize the placement of the circuit board on the middle frame and the foot screwing fixation, thereby realizing the automatic assembly of the circuit board on the middle frame, improving the production efficiency, reducing the uncontrollability of manual assembly quality, and improving the stability and consistency of product quality; and when assembling the circuit board, the spring pin is used to press it into the middle frame, which not only has a simple and compact structure, but also has high assembly accuracy and good stability, thereby ensuring that the circuit board is installed in place on the middle frame;

[0023] (2) A hand alarm button circuit board assembly device of the utility model has a positioning pin between its two clamping jaws that can be positioned and matched with the corresponding hole on the circuit board. The lower end of the positioning pin is lower than the clamping parts of the two clamping jaws. The positioning pin is used to ensure the position accuracy of the circuit board. The positioning pin can be used together with the spring pin to further ensure that the circuit board is accurately pressed into the middle frame;

[0024] (3) The utility model is a hand-held button circuit board assembly device, wherein the two clamping claws are respectively arranged on the clamping claw cylinder, a fixing plate is provided at the lower part of the cylinder body of the clamping claw cylinder, and the spring pin and the positioning pin are respectively installed on the fixing plate, so that the installation and manufacturing are simple and convenient;

[0025] (4) The utility model is a hand-report button circuit board assembly device, in which the clamping claw assembly is installed on the lifting seat plate, and the lifting and lateral movement of the clamping claw assembly are controlled by the lifting drive cylinder and the lateral movement drive cylinder respectively, so that the circuit board on the circuit board placement table can be stably grasped and placed on the middle frame on the middle frame conveying track, and the assembly action speed is fast and the efficiency is high;

[0026] (5) The utility model is a hand-held alarm button circuit board assembly device, wherein the circuit board placement platform is arranged on one side of the middle frame conveying track, and comprises a base plate, a positioning column and a supporting column, wherein the positioning column and the supporting column are respectively mounted on the base plate, and the positioning column is higher than the supporting column and is distributed on the periphery of the supporting column, and is used to position the circuit board. This design facilitates the positioning and grabbing of the circuit board;

[0027] (6) The utility model is a hand-operated button circuit board assembly device, whose screwing mechanism adopts a gear rack mechanism transmission, has a simple and compact structure, and a stable transmission. The reciprocating motion of the screwing driving cylinder can drive each screwing head to rotate, thereby quickly completing the screwing work. The screwing quality is reliable, ensuring the stable fixation of the circuit board and good electrical connection;

[0028] (7) The utility model is a manual alarm button circuit board assembly device, whose gear set includes a driving gear, a transmission gear, an intermediate gear and a driven pinion. The gear set design can synchronously drive multiple screwing heads to rotate, ensuring the synchronous screwing of multiple pins on the circuit board and improving the assembly efficiency;

[0029] (8) The utility model is a hand-held button circuit board assembly device, in which the frame conveying mechanism includes a mounting seat, a fixed guide rail, a sliding seat, an advance and retreat cylinder, a conveying cylinder, a fixed slider, a long guide rail and a shift fork. The advance and retreat cylinder and the conveying cylinder cooperate to realize intermittent movement of the middle frame on the conveying track. The conveying action of the middle frame is stable and efficient, and the assembly rhythm is coherent and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the assembly structure of the circuit board in the hand alarm button on the middle frame;

[0031] Figure 2 This is a schematic diagram of the split structure of the circuit board and the middle frame in the hand alarm button;

[0032] Figure 3 This is a schematic diagram of the overall structure of a hand alarm button circuit board assembly device of the utility model;

[0033] Figure 4 It is a schematic diagram of the overall structure of the circuit board assembly mechanism in the utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the clamping jaw assembly in the utility model;

[0035] Figure 6 This is a schematic diagram of the state of the clamping claw assembly grabbing a circuit board in the utility model;

[0036] Figure 7 This is a schematic diagram of the state of the clamping jaw assembly releasing the circuit board in the utility model;

[0037] Figure 8 This is a schematic diagram of the overall structure of the foot-twisting mechanism in the utility model;

[0038] Fig. 9 It is a partial structural schematic diagram of the foot-twisting mechanism in the utility model;

[0039] Fig.10This is a schematic diagram of the transmission structure of the gear set of the foot-twisting mechanism in the utility model;

[0040] Fig.11 It is a schematic diagram of the matching state between the middle frame conveying mechanism and the middle frame conveying track in the utility model;

[0041] Fig.12 It is a three-dimensional structural schematic diagram of the middle frame conveying mechanism in the utility model.

[0042] Explanation of the symbols in the schematic diagram:

[0043] 101, middle frame; 102, circuit board; 103, pin; 104, positioning column; 105, positioning hole; 106, jack; 107, strip hole; 108, locking part;

[0044] 1. Bottom plate; 2. Middle frame conveying track; 2-1. Support column; 2-2. Track groove; 3. Middle frame conveying mechanism; 3-1. Mounting seat; 3-2. Fixed guide rail; 3-3. Sliding seat; 3-4. Advance and retreat cylinder; 3-5. Conveying cylinder; 3-6. Fixed slider; 3-7. Long guide rail; 3-8. Fork; 4. Circuit board assembly mechanism; 4-1. Column; 4-2. Fixed seat plate; 4-3. Transverse drive cylinder; 4-4. Transverse seat plate; 4-5. Lifting drive cylinder; 4-6. Vertical guide rail; 4-7. Lifting seat plate; 4-8. Claw cylinder; 4-8-1. Claw; 4-9. Fixed plate; 4-9-1 , spring pin; 4-9-2, positioning pin; 5, circuit board placement table; 5-1, seat plate; 5-2, positioning column; 5-3, support column; 6, foot screwing mechanism; 6-1, guide column; 6-2, fixed mounting plate; 6-3, lifting mounting plate; 6-3-1, connecting frame; 6-4, lifting control cylinder; 6-5, foot screwing drive cylinder; 6-6, rack; 6-6-1, rack guide; 6-6-2, rack slider; 6-7, gear set; 6-7-1, driving gear; 6-7-2, transmission gear; 6-7-3, intermediate gear; 6-7-4, driven pinion; 6-8, screwing head; 6-8a, screwing groove. DETAILED DESCRIPTION

[0045] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the drawings and embodiments.

[0046] [Example]

[0047] Combination Figure 3As shown, a hand alarm button circuit board assembly device of the present embodiment includes a base plate 1, a middle frame conveying track 2, a middle frame conveying mechanism 3, a circuit board assembly mechanism 4, a circuit board placement table 5 and a foot tightening mechanism 6, the middle frame conveying track 2, the middle frame conveying mechanism 3, the circuit board assembly mechanism 4, the circuit board placement table 5 and the foot tightening mechanism 6 are respectively installed on the base plate 1, the middle frame conveying mechanism 3 is arranged on one side of the middle frame conveying track 2, and is used to control the middle frame 101 to move on the middle frame conveying track 2; the middle frame conveying track 2 is provided with a circuit board installation station and a foot tightening station, and the middle frame conveying mechanism 3 can drive the middle frame 101 to move between the circuit board installation station and the foot tightening station; the circuit board assembly mechanism 4 is arranged at the circuit board installation station, and is used to grab the circuit board 102 on the circuit board placement table 5 and install it on the corresponding middle frame 101 of the middle frame conveying track 2; the foot tightening mechanism 6 is arranged at the foot tightening station, and is used to screw the pins 103 of the middle frame 101 installed with the circuit board 102 to fix the circuit board 102.

[0048] Reference Figures 4 to 7 As shown, in this embodiment, the circuit board assembly mechanism 4 has a clamping jaw assembly that can move laterally and vertically. The lateral and vertical movements of the clamping jaw assembly can enable the circuit board 102 to move between the circuit board placement table 5 and the circuit board installation station of the middle frame conveying track 2. The clamping jaw assembly includes two clamping jaws 4-8-1 that can open and close and are relatively arranged. The clamping jaws 4-8-1 have a clamping portion, and the clamping portion can be a groove that can clamp out the edge of the circuit board 102. A spring pin 4-9-1 is also provided between the two clamping jaws 4-8-1. The lower end of the spring pin 4-9-1 is lower than the clamping portions of the two clamping jaws 4-8-1 in a natural state. When the clamping jaw assembly grabs the circuit board 102 from the circuit board placement table 5, the spring pin 4-9-1 is compressed by the circuit board 102. At this time, the spring pin 4-9-1 elastically stores energy (such as Figure 6 ); When the clamp assembly places the circuit board 102 on top of the middle frame 101 and releases the circuit board 102, the spring pin 4-9-1 applies elastic downward pressure to the circuit board 102 to press the circuit board 102 into the middle frame 101 (such as Figure 7 ), so that the circuit board 102 can be stably installed in the middle frame 101. The above-mentioned clamping claw assembly design is not only simple and compact in structure, but also has high assembly accuracy and good stability, ensuring that the circuit board is installed in place on the middle frame.

[0049] like Figures 5 to 7As shown, in this embodiment, a positioning pin 4-9-2 capable of positioning and cooperating with the corresponding hole position on the circuit board 102 is also provided between the two clamping jaws 4-8-1, and the lower end of the positioning pin 4-9-2 is lower than the clamping part of the two clamping jaws 4-8-1. When the clamping jaw assembly grabs the circuit board 102, the positioning pin 4-9-2 can be first inserted into the hole position of the circuit board 102 to realize the positioning of the circuit board 102, so that the grasping position of the circuit board 102 is more stable; when releasing the circuit board 102, the positioning pin 4-9-2 can also play a guiding role to avoid the circuit board 102 from being deflected when released and causing assembly errors. For the convenience of installation, the two clamping jaws 4-8-1 are respectively arranged on the clamping jaw cylinder 4-8, and the lower part of the cylinder body of the clamping jaw cylinder 4-8 is provided with a fixing plate 4-9, and the spring pin 4-9-1 and the positioning pin 4-9-2 are respectively installed on the fixing plate 4-9, and the installation and manufacturing are simple and convenient.

[0050] catch Figures 4 to 5 As shown, in this embodiment, the clamping claw assembly is installed on the lifting seat plate 4-7, and the lifting seat plate 4-7 is slidably installed on the transverse seat plate 4-4 through the vertical guide rail 4-6. The transverse seat plate 4-4 is provided with a lifting drive cylinder 4-5, and the driving end of the lifting drive cylinder 4-5 is connected to the lifting seat plate 4-7, and the lifting drive cylinder 4-5 drives the clamping claw assembly to move vertically; the transverse seat plate 4-4 is installed on the driving end of the transverse drive cylinder 4-3, and the transverse drive cylinder 4-3 is installed on the fixed seat plate 4-2, and the fixed seat plate 4-2 is fixed on the bottom plate 1 through the column 4-1. The transverse drive cylinder 4-3 can drive the clamping claw assembly to transfer between the circuit board placement table 5 and the circuit board installation station of the middle frame conveying track 2, and the lifting drive cylinder 4-5 can drive the clamping claw assembly to move up and down to grab or release the circuit board 102. By using the lifting drive cylinder 4-5 and the lateral drive cylinder 4-3 to control the lifting and lateral movement of the clamping claw assembly respectively, the circuit board on the circuit board placement table 5 can be stably grasped and placed on the middle frame on the middle frame conveying track, and the assembly action speed is fast and efficient. In this embodiment, the circuit board placement table 5 is arranged on one side of the middle frame conveying track 2, including a seat plate 5-1, a positioning column 5-2 and a support column 5-3, the positioning column 5-2 and the support column 5-3 are respectively installed on the seat plate 5-1, the positioning column 5-2 is higher than the support column 5-3 and distributed on the periphery of the support column 5-3, and is used to position the circuit board 102. The circuit board 102 can be placed on the circuit board placement table 5 by the circuit board feeding mechanism, the support column 5-3 supports the circuit board 102, and the positioning column 5-2 can locate the outer contour of the circuit board 102, so that the lower part of the circuit board 102 is hollowed out, which can facilitate the clamping claw 4-8-1 to accurately grasp the circuit board 102 from the circuit board placement table 5.

[0051] Reference Figure 8 and Fig. 9As shown, in this embodiment, the above-mentioned foot screwing mechanism 6 includes a guide column 6-1, a fixed mounting plate 6-2, a lifting mounting plate 6-3, a lifting control cylinder 6-4, a foot screwing drive cylinder 6-5, a rack 6-6, a gear set 6-7 and a screwing head 6-8, the guide column 6-1 is vertically fixed on the bottom plate 1, the fixed mounting plate 6-2 is fixed on the top of the guide column 6-1, the lifting mounting plate 6-3 is slidably installed on the guide column 6-1, and the lifting control cylinder 6-4 is fixed on the fixed The lifting control cylinder 6-4 is mounted on the lifting mounting plate 6-2, and the driving end of the lifting control cylinder 6-4 is connected to the lifting mounting plate 6-3 through the connecting frame 6-3-1; the screwing foot driving cylinder 6-5 is mounted on the lifting mounting plate 6-3, the rack 6-6 is mounted on the driving end of the screwing foot driving cylinder 6-5, the rack 6-6 is meshed with the gear set 6-7 for transmission, the screwing head 6-8 is arranged on the axle of the corresponding gear in the gear set 6-7, and the lower end of the screwing head 6-8 has a screwing groove 6-8a. When working, the lifting control cylinder 6-4 drives the lifting mounting plate 6-3 to move downward, so that the screwing groove 6-8a at the end of the screwing head 6-8 is inserted into the locking part 108 at the top of the pin 103, and then the screwing foot driving cylinder 6-5 is actuated, and the screwing head 6-8 is driven to rotate through the gear rack mechanism, thereby screwing the locking part 108. The above-mentioned screwing mechanism 6 adopts a gear rack mechanism transmission, which has a simple and compact structure and stable transmission. The reciprocating motion of the screwing driving cylinder 6-5 can drive the rotational motion of each screwing head 6-8, thereby quickly completing the screwing work. The screwing quality is reliable, ensuring the stable fixation of the circuit board and good electrical connection.

[0052] like Fig.10 As shown, the above-mentioned gear set 6-7 includes a driving gear 6-7-1, a transmission gear 6-7-2, an intermediate gear 6-7-3 and a driven pinion 6-7-4, the rack 6-6 is meshed with the driving gear 6-7-1, the driving gear 6-7-1 is meshed with the transmission gear 6-7-2, the intermediate gear 6-7-3 is coaxially arranged with the transmission gear 6-7-2, the driven pinion 6-7-4 is arranged on the outer periphery of the intermediate gear 6-7-3 and meshed with the intermediate gear 6-7-3, and the screwing head 6-8 is coaxially fixed on the driven pinion 6-7-4. Specifically, the screwing head 6-8 is provided with six, that is, six driven pinions 6-7-4 are provided on the outer periphery of the intermediate gear 6-7-3, and the screwing foot driving cylinder 6-5 drives the rack 6-6 to move linearly, thereby driving the driving gear 6-7-1 to rotate, and drives the intermediate gear 6-7-3 to rotate through the transmission gear 6-7-2, so that each driven pinion 6-7-4 rotates with the screwing head 6-8. The gear set design can synchronously drive multiple screwing heads to rotate, ensure the synchronous screwing of multiple pins on the circuit board, and improve the assembly efficiency. In order to improve the movement stability of the rack 6-6, the rack 6-6 is installed on the rack guide 6-6-1, and the rack guide 6-6-1 is slidably set on the side plate of the connecting frame 6-3-1 through the rack slider 6-6-2.

[0053] Reference Fig.11 and Fig.12 As shown, in the present embodiment, the middle frame conveying mechanism 3 comprises a mounting seat 3-1, a fixed guide rail 3-2, a sliding seat 3-3, an advance and retreat cylinder 3-4, a conveying cylinder 3-5, a fixed slider 3-6, a long guide rail 3-7 and a shift fork 3-8. The mounting seat 3-1 is fixed on the base plate 1, the sliding seat 3-3 is mounted on the mounting seat 3-1 through the fixed guide rail 3-2 in a direction perpendicular to the middle frame conveying track 2, the advance and retreat cylinder 3-4 is mounted on the mounting seat 3-1, and the driving end of the advance and retreat cylinder 3-4 is connected to the sliding seat 3-3; the conveying cylinder 3-5 is mounted on the sliding seat 3-3 in a direction parallel to the middle frame conveying track 2, and the driving end of the conveying cylinder 3-5 is connected to the long guide rail 3-7. The long guide rail 3-7 is mounted on the sliding seat 3-3 in a direction parallel to the middle frame conveying track 2 through the fixed slider 3-6, and two or more shift forks 3-8 are provided at equal intervals on the long guide rail 3-7. During operation, the advance and retreat cylinder 3-4 contracts, at which time the shift fork 3-8 leaves the middle frame 101 on the middle frame conveying track 2, and the conveying cylinder 3-5 moves a middle frame spacing in the opposite direction of the conveying direction of the middle frame 101, and then the advance and retreat cylinder 3-4 extends to align and clamp the middle frame 101 with each shift fork 3-8, and then the conveying cylinder 3-5 moves a middle frame spacing in the conveying direction, driving the middle frame 101 on the middle frame conveying track 2 to move forward a certain distance, and repeating the above action process can drive the middle frame 101 to intermittently move on the middle frame conveying track 2. In this embodiment, the middle frame 101 is roughly square, and has a convex rib for limiting the circuit board, and the shift fork 3-8 has a U-shaped notch that can accommodate the middle frame 101. When driving the middle frame 101 to move, the U-shaped notch can be inserted into the corresponding convex rib side of the middle frame 101, thereby driving the middle frame 101 to slide stably, the conveying action is stable and efficient, and the assembly rhythm is coherent and compact. In addition, in this embodiment, the middle frame conveying track 2 is fixed on the bottom plate 1 through the support column 2 - 1 , and the middle frame conveying track 2 is provided with a track groove 2 - 2 for positioning and supporting the middle frame 101 .

[0054] It is worth mentioning that in this embodiment, in order to prevent the circuit board 102 from moisture, the circuit board 102 is dipped in industrial wax, which is sticky. In order to prevent the components in contact with the circuit board 102 from sticking to the industrial wax and causing a decrease in working accuracy, the clamping jaws 4-8-1, the circuit board placement table 5 and the screwing heads 6-8 are all provided with a heating function, which can be specifically electric heating, and polytetrafluoroethylene (Teflon) insulation material is set between the heating component and other components to prevent heat transfer, so that the stuck industrial wax can be melted to ensure assembly accuracy.

[0055] The utility model discloses a hand alarm button circuit board assembly device, which utilizes a middle frame conveying mechanism to realize the conveying of the middle frame on a conveying track, utilizes a circuit board assembly mechanism and a foot screwing mechanism to realize the placement of the circuit board on the middle frame and the fixing of the foot screwing, thereby realizing the automatic assembly of the circuit board on the middle frame, improving the production efficiency, reducing the uncontrollability of manual assembly quality, and improving the stability and consistency of product quality.

[0056] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A hand alarm button circuit board assembly device, characterized in that: The invention comprises a bottom plate (1), a middle frame conveying track (2), a middle frame conveying mechanism (3), a circuit board assembly mechanism (4), a circuit board placement platform (5) and a foot screwing mechanism (6), wherein the middle frame conveying track (2), the middle frame conveying mechanism (3), the circuit board assembly mechanism (4), the circuit board placement platform (5) and the foot screwing mechanism (6) are respectively mounted on the bottom plate (1), and the middle frame conveying mechanism (3) is arranged on one side of the middle frame conveying track (2) and is used to control the middle frame (101) to be moved on the middle frame conveying track (2). The middle frame conveying track (2) is provided with a circuit board installation station and a foot screwing station, the circuit board assembly mechanism (4) is arranged at the circuit board installation station, and is used to grab the circuit board (102) on the circuit board placement table (5) and install it on the corresponding middle frame (101) of the middle frame conveying track (2); the foot screwing mechanism (6) is arranged at the foot screwing station, and is used to screw the pins (103) of the middle frame (101) on which the circuit board (102) is installed to fix the circuit board (102); wherein, The circuit board assembly mechanism (4) has a clamping jaw assembly capable of moving laterally and vertically, the clamping jaw assembly comprising two clamping jaws (4-8-1) capable of opening and closing and arranged opposite to each other, a spring pin (4-9-1) being arranged between the two clamping jaws (4-8-1), the lower end of the spring pin (4-9-1) being lower than the clamping parts of the two clamping jaws (4-8-1) in a natural state, when the clamping jaw assembly grabs the circuit board (102) from the circuit board placement table (5), the spring pin (4-9-1) is compressed by the circuit board (102); when the clamping jaw assembly places the circuit board (102) above the middle frame (101) and releases the circuit board (102), the spring pin (4-9-1) applies elastic downward pressure to the circuit board (102) to press the circuit board (102) into the middle frame (101).

2. The hand alarm button circuit board assembly device according to claim 1, characterized in that: A positioning pin (4-9-2) capable of being positioned and matched with a corresponding hole on the circuit board (102) is also provided between the two clamping jaws (4-8-1), and the lower end of the positioning pin (4-9-2) is lower than the clamping parts of the two clamping jaws (4-8-1).

3. The hand alarm button circuit board assembly device according to claim 2, characterized in that: The two clamping jaws (4-8-1) are respectively arranged on the clamping jaw cylinder (4-8), a fixing plate (4-9) is arranged at the lower part of the cylinder body of the clamping jaw cylinder (4-8), and the spring pin (4-9-1) and the positioning pin (4-9-2) are respectively installed on the fixing plate (4-9).

4. The hand alarm button circuit board assembly device according to claim 1, 2 or 3, characterized in that: The clamping jaw assembly is mounted on a lifting seat plate (4-7), and the lifting seat plate (4-7) is slidably mounted on a transverse seat plate (4-4) via a vertical guide rail (4-6). A lifting drive cylinder (4-5) is provided on the transverse seat plate (4-4), and a driving end of the lifting drive cylinder (4-5) is connected to the lifting seat plate (4-7), and the lifting drive cylinder (4-5) drives the clamping jaw assembly to move vertically; the transverse seat plate (4-4) is mounted on a driving end of a transverse drive cylinder (4-3), and the transverse drive cylinder (4-3) is mounted on a fixed seat plate (4-2), and the fixed seat plate (4-2) is fixed to a base plate (1) via a column (4-1).

5. The hand alarm button circuit board assembly device according to claim 4, characterized in that: The circuit board placement platform (5) is arranged on one side of the middle frame conveying track (2), and comprises a seat plate (5-1), a positioning column (5-2) and a support column (5-3); the positioning column (5-2) and the support column (5-3) are respectively mounted on the seat plate (5-1); the positioning column (5-2) is higher than the support column (5-3) and is distributed on the periphery of the support column (5-3) for positioning the circuit board (102).

6. The hand alarm button circuit board assembly device according to claim 1, characterized in that: The foot screwing mechanism (6) comprises a guide column (6-1), a fixed mounting plate (6-2), a lifting mounting plate (6-3), a lifting control cylinder (6-4), a foot screwing drive cylinder (6-5), a rack (6-6), a gear set (6-7) and a screwing head (6-8), wherein the guide column (6-1) is vertically fixed on the bottom plate (1), the fixed mounting plate (6-2) is fixed on the top of the guide column (6-1), the lifting mounting plate (6-3) is slidably mounted on the guide column (6-1), and the lifting control cylinder (6-4) is fixed on the fixed mounting plate. (6-2), and the driving end of the lifting control cylinder (6-4) is connected to the lifting installation plate (6-3) through a connecting frame (6-3-1); the screwing foot driving cylinder (6-5) is installed on the lifting installation plate (6-3), the rack (6-6) is installed on the driving end of the screwing foot driving cylinder (6-5), the rack (6-6) is meshed with the gear set (6-7) for transmission, the screwing head (6-8) is arranged on the axle of the corresponding gear in the gear set (6-7), and the lower end of the screwing head (6-8) has a screwing groove (6-8a).

7. The hand alarm button circuit board assembly device according to claim 6, characterized in that: The gear set (6-7) comprises a driving gear (6-7-1), a transmission gear (6-7-2), an intermediate gear (6-7-3) and a driven pinion gear (6-7-4); the rack (6-6) is meshed with the driving gear (6-7-1); the driving gear (6-7-1) is meshed with the transmission gear (6-7-2); the intermediate gear (6-7-3) is coaxially arranged with the transmission gear (6-7-2); the driven pinion gear (6-7-4) is arranged on the outer periphery of the intermediate gear (6-7-3) and is meshed with the intermediate gear (6-7-3); and the screwing head (6-8) is coaxially fixed on the driven pinion gear (6-7-4).

8. The hand alarm button circuit board assembly device according to claim 1, characterized in that: The middle frame conveying mechanism (3) comprises a mounting seat (3-1), a fixed guide rail (3-2), a sliding seat (3-3), an advance and retreat cylinder (3-4), a conveying cylinder (3-5), a fixed slider (3-6), a long guide rail (3-7) and a shift fork (3-8); the mounting seat (3-1) is fixed on the bottom plate (1); the sliding seat (3-3) is mounted on the mounting seat (3-1) in a direction perpendicular to the middle frame conveying track (2) via the fixed guide rail (3-2); the advance and retreat cylinder (3-4) is mounted on the mounting seat (3-1) ), the driving end of the advance and retreat cylinder (3-4) is connected to the sliding seat (3-3); the conveying cylinder (3-5) is installed on the sliding seat (3-3) in a direction parallel to the middle frame conveying track (2), the driving end of the conveying cylinder (3-5) is connected to the long guide rail (3-7), the long guide rail (3-7) is installed on the sliding seat (3-3) in a direction parallel to the middle frame conveying track (2) through a fixed slider (3-6), and two or more shift forks (3-8) are evenly spaced on the long guide rail (3-7).

9. The hand alarm button circuit board assembly device according to claim 8, characterized in that: The shift fork (3-8) is provided with a U-shaped notch capable of accommodating the middle frame (101).

10. The hand alarm button circuit board assembly device according to claim 9, characterized in that: The middle frame conveying track (2) is fixed on the bottom plate (1) via a support column (2-1), and a track groove (2-2) for positioning and supporting the middle frame (101) is provided on the middle frame conveying track (2).

Images