Rotary material collecting and discharging device capable of being adjusted front and back

Abstract

The invention relates to the field of electronic manufacturing industry, in particular to a rotary material receiving and discharging device capable of being adjusted front and back, which comprises a base plate, a rotating mechanism, a bracket and a grabbing mechanism, and is characterized in that the rotating mechanism is fixedly connected to the front surface of the base plate; the support is connected to the front end of the rotating mechanism through a pin shaft. The grabbing mechanism is fixedly connected to the bottom of the support. The box body is fixedly connected to the front surface of the substrate; the cylinder is mounted at the left end of the upper surface of the box body; the rack is vertically installed at the output end of the air cylinder. The two first rotating shafts are installed at the upper end and the lower end of an inner cavity of the box body through bearings correspondingly. The gear is installed on the outer wall of the gear and connected with the rack in a meshed mode, and when the rack moves up and down, the gear can rotate anticlockwise or clockwise. The PCB conveying distance can be changed, the device is suitable for being used in different production lines, the grabbing position of the air nozzle is changed, the device is suitable for grabbing PCBs of different sizes, adjustment is convenient, collecting and releasing of the PCBs of various types are achieved, and the downtime is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of electronic manufacturing industry, in particular to a rotating material collecting and releasing device which can be adjusted forwards and backwards. Background Art

[0002] PCB, Chinese name for printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. PCB circuit boards can only be obtained after lamination, photolithography, etching, drilling, electroplating, solder mask, monitoring and other steps; the automated production of PCB circuit boards is inseparable from the board retractor. When in use, the air nozzle is attached to the surface of the PCB circuit board to achieve the PCB circuit board grabbing. The board retractor is a pneumatic system or a connecting rod mechanism to achieve the movement of the PCB circuit board, playing the role of placing and removing the PCB circuit board on the production line; due to the different application occasions of PCB circuit boards, the size of PCB circuit boards is also different. Due to the limitation of drilling holes on the PCB circuit board, the position of the air nozzle remains unchanged. Once the PCB circuit boards of different sizes are grabbed, the air nozzle will leak at the drilling position, making it difficult to achieve stable grabbing of PCB circuit boards of different sizes; in addition, the transmission distance of the PCB circuit board cannot be changed, which is difficult to adapt to the use of different production lines and has poor practicality. It is necessary to propose a flexible and adjustable rotating retractor. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a rotating material collection and unloading device that can be adjusted forward and backward to solve the problem raised in the above background technology that PCB circuit boards of different sizes cannot be collected and released and the conveying distance is difficult to adapt to the use of different types of production lines.

[0004] To achieve the above-mentioned objectives, an embodiment of the present invention provides the following technical solutions: a rotating material collecting and releasing device that can be adjusted forward and backward, including a base plate, the rotating material collecting and releasing device that can be adjusted forward and backward also includes a rotating mechanism, a bracket and a grasping mechanism, the rotating mechanism is fixedly connected to the front side of the base plate; the bracket is connected to the front end of the rotating mechanism through a pin shaft; the grasping mechanism is fixedly connected to the bottom of the bracket.

[0005] Preferably, the rotating mechanism includes a box body, a cylinder, a rack, a first rotating shaft, a gear and a telescopic assembly, the box body is fixedly connected to the front side of the base plate; the cylinder is installed at the left end of the upper surface of the box body; the rack is vertically installed at the output end of the cylinder; there are two first rotating shafts, which are respectively installed at the upper and lower ends of the inner cavity of the box body through bearings; the gear is installed on the outer wall of the gear, and the gear is meshed with the rack, and when the rack moves up and down, the gear can rotate counterclockwise or clockwise; one end of the telescopic assembly is installed at the front end of the first rotating shaft, and the other end of the telescopic assembly is connected to the bracket through a pin.

[0006] The cooperation between the rack and the gear can make the telescopic assembly rotate back and forth clockwise and counterclockwise, thereby realizing the left and right movement of the grasping mechanism.

[0007] Preferably, the telescopic assembly includes an outer rod, a slot, an inner rod, a spring and a positioning block, the outer rod is installed at the front end of the first rotating shaft, and the top of the outer rod is provided with slots equidistantly from left to right; the inner rod is inserted into the inner cavity of the outer rod, and the left end of the inner rod is connected to the bracket by a pin shaft; the spring and the positioning block are inserted into the inner cavity of the inner rod from the inside to the outside, and the positioning block is pushed into the inner cavity of the slot under the action of the spring elastic force to position the inner rod; the inner rod can slide on the outer rod to change the total length of the inner rod and the outer rod, thereby changing the conveying distance.

[0008] Preferably, the positions of the outer rods on the two telescopic assemblies are staggered front to back.

[0009] Preferably, the positioning block is conical in shape.

[0010] Preferably, the grabbing mechanism comprises an outer cover, a second rotating shaft, a crank, a turntable, a brake nut, a steel belt, a slideway, a slider, teeth and an air nozzle, the outer cover is fixedly connected to the bottom of the bracket; the second rotating shaft is installed at the top center position of the outer cover through a bearing, and the outer wall of the second rotating shaft is provided with a thread; the crank and the turntable are respectively fixedly connected to the upper and lower ends of the second rotating shaft; the brake nut is screwed on the outer wall of the second rotating shaft, and when the brake nut is screwed and moved downward, the brake nut contacts the upper surface of the outer cover to brake the second rotating shaft; the steel belt is fixedly connected to the The lower surface of the turntable; there are four slideways, which are respectively opened at four diagonal positions on the lower surface of the outer cover; the slider is slidably installed on the inner wall of the slideway; there are several teeth, which are installed on the upper surface of the slider from the inside to the outside, and the teeth are meshed with the steel belt; the air nozzle is installed on the outside of the slider, and the PCB circuit board is sucked by the air nozzle; by rotating the turntable clockwise or counterclockwise, the slider can be moved inward or outward with the cooperation of the steel belt and the teeth, and the position of the air nozzle can be adjusted to keep the air nozzle away from the drilling hole of the PCB circuit board to ensure that the air nozzle sucks the PCB circuit board.

[0011] Preferably, the steel belt is distributed on the lower surface of the turntable in a spiral shape.

[0012] Preferably, the sliding block is in the shape of an I-beam.

[0013] Preferably, the crank drives the turntable to rotate clockwise or counterclockwise, and the inclined surface of the steel belt squeezes the teeth inward or outward, causing the slider to drive the air nozzle to move inward or outward, causing the rectangle formed by the four air nozzles to become smaller or larger.

[0014] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: 1. The present invention drives the rack to move up and down through the cylinder, and the telescopic assembly can rotate clockwise and counterclockwise under the transmission of the rack and the gear, and the grabbing mechanism moves left and right to achieve the purpose of PCB circuit board transportation. The inner rod moves on the outer rod, and the positioning block is pushed to insert into the corresponding position slot under the action of the spring elastic force, so the position of the inner rod can be adjusted. Therefore, the transmission distance of the PCB circuit board can be changed, which is suitable for the use of different production lines and has strong practicality.

[0015] 2. The present invention drives the turntable to rotate clockwise or counterclockwise through the crank handle, and the slider moves inward or outward under the cooperation of the steel belt and the teeth, the distance between the four air nozzles is reduced or increased, the brake nut is screwed to move downward, and the brake nut contacts the outer cover to brake the turntable. According to the different sizes of PCB circuit boards, the gripping position of the air nozzle is changed, which is suitable for gripping PCB circuit boards of different sizes, easy to adjust, and can achieve the retractable and retractable boards of various types of PCB circuit boards, shortening the downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is an exploded view of the rotating mechanism of the present invention.

[0018] Figure 3 It is a front cross-sectional view of the telescopic assembly of the present invention.

[0019] Figure 4 For the present invention Figure 3 Enlarged view of point A in .

[0020] Figure 5 It is a front cross-sectional view of the grabbing mechanism of the present invention.

[0021] Figure 6 It is a bottom view of the grabbing mechanism of the present invention.

[0022] Figure 7 It is a bottom view of the turntable of the present invention.

[0023] Figure 8 It is a schematic diagram of the slider structure of the present invention.

[0024] In the figure: 1, base plate; 2, rotating mechanism; 3, bracket; 4, grasping mechanism; 21, box body; 22, cylinder; 23, rack; 24, first rotating shaft; 25, gear; 26, telescopic assembly; 261, outer rod; 262, slot; 263, inner rod; 264, spring; 265, positioning block; 41, outer cover; 42, second rotating shaft; 43, crank handle; 44, turntable; 45, brake nut; 46, steel belt; 47, slideway; 48, slider; 49, teeth; 410, air nozzle. DETAILED DESCRIPTION

[0025] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] For examples, see Figure 1-8 In an embodiment of the present invention, a rotating material collecting and releasing device that can be adjusted forward and backward includes a base plate 1, a rotating mechanism 2 is fixedly connected to the front side of the base plate 1, a bracket 3 is connected to the front side of the rotating mechanism 2 through a pin shaft, and a gripping mechanism 4 is fixedly connected to the lower surface of the bracket 3, and a PCB circuit board is gripped by the gripping mechanism 4.

[0028] The rotating mechanism 2 includes a box body 21 fixedly connected to the front side of the base plate 1, a cylinder 22 is installed at the left end of the upper surface of the box body 21, a rack 23 is vertically installed at the output end of the cylinder 22, two first rotating shafts 24 are installed at the upper and lower ends of the inner cavity of the box body 21 through bearings, and a telescopic component 26 and a gear 25 are installed at the front and rear ends of the outer wall of the first rotating shaft 24 respectively, and the gear 25 is meshed and connected with the rack 23. When the rack 23 is driven up and down by the cylinder 22, the gear 25 can be rotated counterclockwise or clockwise, and the left end of the telescopic component 26 is connected to the rear side of the bracket 3 through a pin.

[0029] Furthermore, the telescopic assembly 26 includes an outer rod 261 installed at the front end of the first rotating shaft 24, and a plurality of slots 262 are equidistantly provided on the upper surface of the outer rod 261 from left to right. An inner rod 263 is inserted into the inner cavity of the outer rod 261, and the left end of the inner rod 263 is connected to the rear side of the bracket 3 by a pin shaft. A spring 264 and a positioning block 265 are respectively inserted into the inner cavity of the inner rod 263 from the inside to the outside. Under the elastic force of the spring 264, the positioning block 265 is pushed to insert into the inner cavity of the slot 262 to position the inner rod 263. The positioning block 265 is conical in shape. When the positioning block 265 is pressed down, the positioning block 265 can be moved out of the slot 262. When the positioning block 265 is moved up, it is also convenient for the positioning block 265 to be inserted into the inner cavity of the slot 262. The positions of the outer rods 261 on the two telescopic assemblies 26 are staggered front and back to prevent the two outer rods 261 from colliding with each other when rotating.

[0030] Furthermore, the grabbing mechanism 4 includes an outer cover 41 fixedly connected to the lower surface of the bracket 3, a second rotating shaft 42 is installed at the center position of the upper surface of the outer cover 41 through a bearing, the outer wall of the second rotating shaft 42 is provided with a thread, a crank 43 and a turntable 44 are respectively installed at the upper and lower ends of the second rotating shaft 42, a brake nut 45 is screwed on the middle part of the outer wall of the second rotating shaft 42, when the brake nut 45 is screwed and moved downward, the brake nut 45 contacts the upper surface of the outer cover 41 to brake the second rotating shaft 42, a steel belt 46 is fixedly connected to the lower surface of the turntable 44, and slideways 47 are provided at the diagonals of the lower surface of the outer cover 41, and a slider 48 is slidably installed on the inner side of the slideway 47, and the slider The shape of 48 is an I-shape, which ensures that the slider 48 can slide stably along the slideway 47 at the bottom of the outer cover 41. A plurality of teeth 49 are installed at equal distances from the inside to the outside on the top of the slider 48. The teeth 49 are meshed and connected with the steel belt 46. The steel belt 46 is spirally distributed on the lower surface of the turntable 44. When the turntable 44 rotates clockwise or counterclockwise, the inclined surface of the steel belt 46 can squeeze the teeth 49 inward or outward, so that all the sliders 48 move inward or outward at the same time. An air nozzle 410 is installed on the outside of the slider 48. The air nozzle 410 is connected to the pneumatic system through an air pipe. The air nozzle 410 is used to suck the PCB circuit board to achieve the purpose of PCB circuit board grabbing.

[0031] Working principle: Step 1: The cylinder 22 drives the rack 23 to move up and down, so that the gear 25 can rotate clockwise first, and then counterclockwise. At the same time, the first rotating shaft 24 drives the telescopic assembly 26 to rotate clockwise first, and then counterclockwise. The bracket 3 first moves steadily to the lower right, and then to the lower left. The air nozzle 410 sucks the PCB circuit board, and the air nozzle 410 releases the PCB circuit board to realize the retraction and release of the PCB circuit board; Step 2: When PCB circuit boards of different sizes need to be transported, the brake nut 45 is screwed to move upward, the brake on the second rotating shaft 42 is released, and the turntable 44 is driven to rotate clockwise or counterclockwise by the crank 43. The inclined surface of the steel belt 46 squeezes the teeth 49 inward or outward, prompting the slider 48 to drive the air nozzle 410 to move inward or outward, and the rectangle formed by the four air nozzles 410 becomes smaller or larger until the air nozzle 410 attracts the position of the PCB circuit board and no longer drills holes in the PCB circuit board. The brake nut 45 is screwed to move downward, the second rotating shaft 42 is braked, and the position adjustment of the air nozzle 410 is completed, so that PCB circuit boards of different sizes can be grabbed; Step three, when it is necessary to change the transmission distance, press down the positioning block 265 to remove the positioning block 265 from the slot 262, drag the inner rod 263 to move on the outer rod 261 until the total length of the inner rod 263 and the outer rod 261 meets the moving distance of the grabbing mechanism 4, release the positioning block 265, and insert the positioning block 265 into the corresponding position slot 262 under the elastic force of the spring 264 to realize the positioning of the inner rod 263. By changing the distance that the cylinder 22 drives the rack 23 to move up and down, the transmission distance of the PCB circuit board can be changed.

[0032] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A rotating material collecting and releasing device that can be adjusted forward and backward, comprising a base plate (1), characterized in that: The rotating retractable material device that can be adjusted forward and backward also includes: A rotating mechanism (2) fixedly connected to the front side of the base plate (1); A bracket (3) connected to the front end of the rotating mechanism (2) via a pin; A gripping mechanism (4) fixedly connected to the bottom of the bracket (3); The rotating mechanism (2) comprises: A box body (21) fixedly connected to the front side of the base plate (1); A cylinder (22) mounted on the left end of the upper surface of the box body (21); A rack (23) vertically mounted on the output end of the cylinder (22); Two first rotating shafts (24) are respectively mounted at the upper and lower ends of the inner cavity of the box body (21) through bearings; A gear (25) is mounted on the outer wall of the gear (25), and the gear (25) is meshed with the rack (23), and when the rack (23) moves up and down, the gear (25) can rotate counterclockwise or clockwise; A telescopic component (26) has one end mounted on the front end of the first rotating shaft (24), and the other end of the telescopic component (26) is connected to the bracket (3) via a pin.

2. The rotating material collecting and releasing device that can be adjusted forward and backward according to claim 1 is characterized in that: The telescopic assembly (26) comprises: An outer rod (261) is mounted on the front end of the first rotating shaft (24), and a top of the outer rod (261) is provided with slots (262) equidistantly spaced from left to right; An inner rod (263) is inserted into the inner cavity of the outer rod (261), and a left end of the inner rod (263) is connected to the bracket (3) via a pin; The spring (264) and the positioning block (265) are inserted into the inner cavity of the inner rod (263) from the inside to the outside. Under the elastic force of the spring (264), the positioning block (265) is pushed into the inner cavity of the card slot (262) to position the inner rod (263).

3. The rotating material collecting and releasing device that can be adjusted forward and backward according to claim 2 is characterized in that: The positions of the outer rods (261) on the two telescopic assemblies (26) are staggered front to back.

4. The rotating material collecting and releasing device that can be adjusted forward and backward according to claim 3 is characterized in that: The positioning block (265) is in a conical shape.

5. The rotating material collecting and releasing device that can be adjusted forward and backward according to claim 4 is characterized in that: The grabbing mechanism (4) comprises: An outer cover (41) fixedly connected to the bottom of the bracket (3); A second rotating shaft (42) is mounted at the top center of the outer cover (41) via a bearing, and a thread is provided on the outer wall of the second rotating shaft (42); A crank handle (43) and a rotating disk (44) are respectively fixedly connected to the upper and lower ends of the second rotating shaft (42); A brake nut (45) is screwed onto the outer wall of the second rotating shaft (42); when the brake nut (45) is screwed to move downward, the brake nut (45) contacts the upper surface of the outer cover (41) to brake the second rotating shaft (42); A steel belt (46) fixedly connected to the lower surface of the rotating disk (44); Four slideways (47) are respectively disposed at four diagonal positions on the lower surface of the outer cover (41); A slider (48) slidably mounted on the inner wall of the slideway (47); A plurality of teeth (49) are mounted on the upper surface of the slider (48) from the inside to the outside, and the teeth (49) are meshedly connected with the steel belt (46); An air nozzle (410) is installed on the outside of the sliding block (48), and the PCB circuit board is sucked by the air nozzle (410).

6. The rotating material collecting and releasing device capable of being adjusted forward and backward according to claim 5, characterized in that: The steel belt (46) is distributed in a spiral shape on the lower surface of the turntable (44).

7. The rotating material collecting and releasing device capable of front-to-back adjustment according to claim 6 is characterized in that: The sliding block (48) is in the shape of an I-beam.

8. The rotating material collecting and releasing device capable of front-to-back adjustment according to claim 7 is characterized in that: The crank (43) drives the turntable (44) to rotate clockwise or counterclockwise, and the inclined surface of the steel belt (46) presses the teeth (49) inwardly or outwardly, causing the slider (48) to drive the air nozzle (410) to move inwardly or outwardly, causing the rectangle formed by the four air nozzles (410) to become smaller or larger.

Images