Pulling mechanism of automatic capping machine

Abstract

This utility model discloses a pulling mechanism for an automatic capping machine, including two support frames. A handling structure and a material pulling structure are mounted on the two support frames. The handling structure includes a three-axis linear module connected to a second bracket. A connecting plate is connected below the second bracket, and several adjusting plates are connected to the connecting plate. Each adjusting plate has several suction cups below it. The material pulling structure includes a fourth linear module and a third linear guide rail. A crossbeam connects the fourth linear module and the third linear guide rail, and several gripper assemblies are mounted on the crossbeam. The advantages of this utility model are: the material pulling structure can partially extract the product fixture from the material frame; the handling structure can completely extract the product fixture and move it to a set position; the pulling mechanism has a compact structure, effectively reducing its space occupation, saving product fixture pulling time, and improving product fixture pulling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automatic capping machine technology, specifically to a pulling mechanism for an automatic capping machine. Background Technology

[0002] In automated PCB production lines, PCBs typically require reflow soldering, which necessitates the use of an automatic capping machine. The automatic capping machine operates by placing the PCB on a carrier, covering it with a cap, inspecting it, and then allowing it to enter the reflow oven for reflow soldering. Finally, the cap is removed, and the PCB is taken out. The entire process is automated, fast, and highly efficient.

[0003] In automatic capping machines, to improve PCB board loading efficiency, PCB boards are typically placed in multiple stacked product fixtures on a material frame, and then loaded via the material frame. Currently, robots are often used to handle and pull the product fixtures from the material frame; however, robots are complex in structure, expensive, and have high maintenance costs. For example, the picking and placing mechanism and automatic loading device disclosed in patent publication number CN220501992U uses a robot to pick and place the fixtures. However, robots are expensive, have high maintenance costs, and increase product production costs. Summary of the Invention

[0004] The purpose of this invention is to provide a pulling mechanism for an automatic capping machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulling mechanism for an automatic capping machine, comprising two support frames arranged side by side, with a handling structure and a material pulling structure mounted on the two support frames. The handling structure includes a three-axis linear module, which is connected to a second bracket. A horizontally arranged connecting plate is connected below the second bracket, and the connecting plate is connected to several horizontally arranged adjusting plates. Several position-adjustable suction cups are provided below each adjusting plate. The material pulling structure includes a fourth linear module fixed to one of the two support frames and a third linear guide rail fixed to the other. The fourth linear module and the third linear guide rail are arranged front to back, and a crossbeam is connected between the fourth linear module and the third linear guide rail. Several gripper assemblies are provided on the crossbeam.

[0006] In a further optimization, the gripper assembly includes a fixed plate connected to the crossbeam. The fixed plate is connected to a gripper cylinder positioned horizontally forward. The two pneumatic fingers of the gripper cylinder are each connected to a clamping plate. The gripper cylinder can drive the two clamping plates to open and close, thereby clamping or releasing the product fixture.

[0007] Further optimization involves providing a flexible pad on each of the opposite sides of the two clamping plates, which serves to reduce vibration and protect the product fixture.

[0008] Further optimization involves providing two vertically positioned limiting pins on one of the two clamping plates, and a through hole for the limiting pins to pass through on the other clamping plate. The limiting pins effectively limit the movement of the product fixture, ensuring precise clamping of the product fixture by the gripper assembly.

[0009] Further optimization includes fixing bolts on the fixing plate for connecting it to the crossbeam, at least two slots arranged side-by-side on the crossbeam, and a protrusion on the bottom of the fixing plate for engaging with the slots. The slots on the crossbeam are used for positioning the fixing plate and for facilitating its adjustment.

[0010] Further optimization involves providing a third base plate between the fourth linear module and the support frame, and a fourth base plate between the third linear guide rail and the support frame.

[0011] Further optimization involves the three-axis linear module comprising a first linear module and a first linear guide rail, each mounted on two separate support frames, arranged front to back. The first linear module is positioned above a third linear guide rail, which in turn is positioned above a fourth linear module. A first horizontally positioned bracket connects the first linear guide rail and the first linear module. A second linear module, which moves left to right, is mounted on the first bracket. The second linear module is connected to a vertically positioned third linear module. The first linear module allows for front-to-back adjustment of the second bracket, the second linear module allows for left-to-right adjustment of the second bracket, and the third linear module allows for vertical adjustment of the second bracket.

[0012] Further optimization includes a first base plate between the first linear module and the corresponding support frame, a second base plate between the first linear guide rail and the corresponding support frame, a third linear module connected to a second bracket, and a second linear guide rail between the third linear module and the first bracket.

[0013] Further optimization involves having two connecting plates arranged side-by-side, two adjusting plates arranged front-to-back, and two waist-shaped holes on each connecting plate for adjusting the position of the adjusting plate. Each adjusting plate also has a suction cup for adjusting the position of the suction cup. Each suction cup is connected to an adjusting plate by a mounting plate, facilitating the adjustment of the suction cup's mounting position.

[0014] Beneficial effects: The automatic capping machine of this utility model has a pulling mechanism that can accurately hold the product fixture in the material frame through the gripper assembly. The fourth linear module can drive the gripper assembly to move backward and pull out part of the product fixture from the material frame. The second bracket driven by the three-axis linear module and the suction cup connected below it can adsorb the product fixture pulled out by the gripper assembly. Then, under the action of the three-axis linear module, the product fixture is completely pulled out and moved to the set position. The pulling mechanism has a compact and simple structure, is easy to maintain, has low cost, and can effectively reduce the space occupied by its structure. At the same time, the pulling method of the product fixture is simple and easy, which can effectively save the CT time of product fixture pulling, improve the pulling efficiency of product fixture, and reduce production costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the axonal structure of the pull-out mechanism of the automatic capping machine disclosed in the embodiments of this utility model; Figure 2 This is a front view structural schematic diagram of the pull-out mechanism of the automatic capping machine disclosed in the embodiment of this utility model; Figure 3 This is a schematic diagram of the handling structure disclosed in the embodiment of this utility model; Figure 4 This is a schematic diagram of the material pulling structure disclosed in the embodiments of this utility model; Figure 5 for Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the automatic capping machine in the pulling state as disclosed in the embodiment of this utility model.

[0016] Figure Labels

[0017] 10-Support frame, 20-Lifting structure, 201-First base plate, 202-First linear module, 203-Second base plate, 204-First linear guide rail, 205-First bracket, 206-Second linear module, 207-Third linear module, 208-Second linear guide rail, 209-Second bracket, 210-Connecting plate, 211-Adjusting plate, 212-Mounting plate, 213-Suction cup, 30 - Material pulling structure, 301- Third base plate, 302- Fourth linear module, 303- Fourth base plate, 304- Third linear guide rail, 305- Crossbeam, 306- Gripper assembly, 3061- Fixing plate, 3062- Gripper cylinder, 3063- Clamping plate, 30631- Through hole, 3064- Pad plate, 3065- Limiting pin, 3066- Fixing bolt, 40- Material frame, 50- Product fixture. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figure 1-4 , Figure 6 As shown, an automatic capping machine's pulling mechanism includes two support frames 10 arranged side by side. A handling structure 20 and a material pulling structure 30 are mounted on the two support frames 10. The handling structure 20 includes a three-axis linear module connected to a second bracket 209. A horizontally arranged connecting plate 210 is connected below the second bracket 209. Several horizontally arranged adjusting plates 211 are connected to the connecting plate 210. Several position-adjustable suction cups 213 are provided below each adjusting plate 211. The material pulling structure 30 includes a fourth linear module 302 fixed to one of the two support frames 10 and a third linear guide rail 304 fixed to the other. The fourth linear module 302 and the third linear guide rail 304 are arranged front to back. A crossbeam 305 connects the fourth linear module 302 and the third linear guide rail 304. Several gripper assemblies 306 are provided on the crossbeam 305.

[0020] In this application, the pulling mechanism is used to pull out the product fixtures 50 within the material frame 40, enabling the stacked product fixtures 50 within the material frame 40 to be pulled out one by one and transported to the next workstation, such as a conveyor line. The support frame 10 is used for the installation of the handling structure 20 and the pulling structure 30. The pulling structure 30 pulls out a portion of the stacked product fixtures 50 within the material frame 40, and then the handling structure 20 pulls out the partially pulled-out product fixtures 50 completely and transports them to a designated position, achieving complete pulling and transport of the product fixtures 50. Through the coordinated arrangement of the handling structure 20 and the pulling structure 30, the structure is compact, effectively reducing the space occupied by the structure, while saving the CT time for pulling out the product fixtures 50 and improving the pulling efficiency of the product fixtures 50.

[0021] In this application, the handling structure 20 includes a three-axis linear module, which can drive the second support 209 to move back and forth, left and right, and up and down. The second support 209 can drive the connecting plate 210 and the adjusting plate 211 connected to it to move back and forth, left and right, and up and down synchronously, thereby driving the suction cup 213 to move synchronously, and finally realizing the adsorption and handling of the product jig 50 pulled by the material pulling structure 30.

[0022] In this application, the material pulling structure 30 includes a fourth linear module 302, a third linear guide rail 304, a crossbeam 305, and a gripper assembly 306. The fourth linear module 302 can drive the crossbeam 305 to move back and forth. The third linear guide rail 304 is used to guide and support the back and forth movement of the crossbeam 305, ensuring that the back and forth movement of the crossbeam 305 is smooth and precise. The crossbeam 305 drives the gripper assembly 306 to move back and forth. The gripper assembly 306 can clamp the product fixture 50 in the material frame 40, making it easy for the handling structure to pick up and transport the product fixture 50.

[0023] Please refer to Figure 5 As shown, in one embodiment of this application, the gripper assembly 306 includes a fixing plate 3061 connected to the crossbeam 305. The fixing plate 3061 is connected to a horizontally forward-positioned gripper cylinder 3062. The two pneumatic fingers of the gripper cylinder 3062 are respectively connected to a clamping plate 3063.

[0024] In this embodiment, the gripper assembly 306 includes a fixing plate 3061, a gripper cylinder 3062, and a clamping plate 3063. The fixing plate 3061 is used for mounting the gripper cylinder 3062, thereby realizing the connection between the crossbeam 305 and the gripper cylinder 3062. By connecting the pneumatic fingers of the gripper cylinder 3062 with the clamping plate 3063, the gripper cylinder 3062 drives the two clamping plates 3063 to open and close, ultimately gripping or releasing the product fixture 50 in the material frame 40. When the two clamping plates 3063 clamp the product fixture 50, the fourth linear module 302 drives the crossbeam 305 to move backward along the third linear guide rail 304, which in turn drives the gripper cylinder 3062 to move backward synchronously, pulling the clamped product fixture 50 backward a certain distance. This makes it easier for the suction cup 213 of the lifting structure 20 to hold the product fixture 50, facilitating the lifting structure 20 to pull the product fixture 50 out of the material frame 40 and transport it to the set position.

[0025] Among them, there are two gripper assemblies 306, which ensure that the pulling structure 30 effectively clamps the product fixture 50 and ensures that the product fixture 50 is pulled out smoothly and steadily.

[0026] Furthermore, each of the two clamping plates 3063 has a flexible pad 3064 on its opposite side. The flexible pad 3064 reduces hard contact between the clamping plates 3063 and the product fixture 50, preventing scratches or indentations, and absorbs mechanical vibrations or impacts, preventing workpiece displacement or damage during clamping. Simultaneously, the pad 3064 increases the coefficient of friction, preventing slippage between the product fixture 50 and the clamping plates 3063, ensuring effective clamping of the product fixture 50 by the gripper assembly 306, and ensuring that the pulling structure 30 can pull the product fixture 50 out of the material frame 40.

[0027] Based on the above solution, furthermore, one of the two clamping plates 3063 is provided with two vertically arranged limiting pins 3065, and the other of the two clamping plates 3063 is provided with a through hole 30631 for the limiting pins 3065 to pass through. The limiting pins 3065 are used to limit the gripper assembly 306 when it grips the product fixture 50, ensuring the accurate gripping position of the gripper assembly 306 on the product fixture 50. The through hole 30631 is used to avoid the limiting pins 3065 when the two clamping plates 3063 are closed, and to limit and support the limiting pins 3065.

[0028] Based on the above scheme, furthermore, the fixing plate 3061 is provided with fixing bolts 3066 for connecting it to the crossbeam 305, the crossbeam 305 is provided with at least two slots 3051 arranged side by side, and the fixing plate 3061 has a protrusion on its lower part for cooperating with the slots 3051. The fixing bolts 3066 are used to connect the fixing plate 3061 and the crossbeam 305, thus fixing the fixing plate 3061 to the crossbeam 305. The slots 3061 on the crossbeam 305 are used to lock the fixing bolts 3066 to the crossbeam 305. The protrusion on the lower part of the fixing plate 3061 can be engaged in the slots 3051 to achieve the installation positioning and limiting of the fixing plate 3061. The at least two slots 3051 ensure the stable installation of the fixing plate 3061.

[0029] Please refer to Figure 3 As shown, in one embodiment of this application, a third base plate 301 is provided between the fourth linear module 302 and the support frame 10, and a fourth base plate 303 is provided between the third linear guide rail 304 and the support frame 10. The third base plate 301 enables the fourth linear module 302 to be mounted on the support frame 10, and the fourth base plate 303 enables the third linear guide rail 304 to be mounted on the support frame 10. Specifically, the third base plate 301 is mounted on the left side of the support frame 10, and the fourth base plate 303 is mounted on the right side of the support frame 10. Both the right side of the third base plate 301 and the left side of the fourth base plate 303 have upward-facing protrusions for positioning and limiting the installation of the fourth linear module 302 and the third linear guide rail 304, ensuring accurate installation positions of the fourth linear module 302 and the third linear guide rail 304.

[0030] Please refer to Figure 4As shown, in another embodiment of this application, the three-axis linear module includes a first linear module 202 and a first linear guide rail 204 disposed on two support frames 10 and arranged front to back. The first linear module 202 is disposed above the third linear guide rail 304, and the first linear guide rail 204 is disposed above the fourth linear module 302. A first bracket 205 arranged horizontally is connected between the first linear guide rail 204 and the first linear module 202. A second linear module 206 that moves left to right is disposed on the first bracket 205. The second linear module 206 is connected to a third linear module 207 that is arranged vertically.

[0031] In this embodiment, the three-axis linear module includes a first linear module 202, a second linear module 206, and a third linear module 207. The first linear module 202 is used for forward and backward movement, the second linear module 206 for left and right movement, and the third linear module 207 for up and down movement, achieving three-axis motion. A first linear guide rail 204 cooperates with the first linear module 202 to provide support and guidance for the installation and movement of the first bracket 205. The first linear module 202 drives the first bracket 205 to move forward and backward, thereby driving the second linear module 206 and the third linear module 207 to move forward and backward synchronously. The second linear module 206 drives the third linear module 207 to move left and right, and the third linear module 207 drives the second bracket 209 to move up and down, ultimately achieving three-axis movement of the connecting plate 210, adjusting plate 211, and suction cup 213 connected below the second bracket 209.

[0032] Furthermore, a first base plate 201 is provided between the first linear module 202 and the corresponding support frame 10, a second base plate 203 is provided between the first linear guide rail 204 and the corresponding support frame 10, a third linear module 207 is connected to the second bracket 209, and a second linear guide rail 208 is provided between the third linear module 207 and the first bracket 205. The first base plate 201 is used for the connection between the first linear module 202 and the support frame 10, and the second base plate 203 is used for the connection between the first linear guide rail 204 and the support frame 10. Specifically, the first base plate 201 is mounted on the right side of the support frame 10, and the second base plate 203 is mounted on the left side of the support frame 10. Both the right side of the first base plate 201 and the right side of the second base plate 203 have upward-facing protrusions for the installation positioning and limiting of the first linear module 202 and the first linear guide rail 204, ensuring accurate installation positions of the first linear module 202 and the first linear guide rail 204. Meanwhile, the first linear module 202 and the fourth linear module 302 are respectively mounted on two different support frames 10, which can ensure the stability between the two support frames 10. This improves the overall structural stability of the pulling mechanism.

[0033] Please refer to Figure 4As shown, in another embodiment of this application, there are two connecting plates 210 arranged side by side, and two adjusting plates 211 arranged front and back. Both connecting plates 210 are provided with waist-shaped holes for adjusting the position of the adjusting plates 211, and both adjusting plates 211 are provided with suction cups 213 for adjusting the position of the suction cups 213. Each suction cup 213 is connected to an mounting plate 212 between itself and the adjusting plate 211.

[0034] In this embodiment, the two connecting plates 210 and the two adjusting plates 211 form a "well" shape. The two adjusting plates 211 can be adjusted in position relative to the two connecting plates 210. The oblong holes on the connecting plates 210 facilitate the position adjustment of the adjusting plates 211, and the connecting plates 210 are fixed by bolts engaging with the oblong holes. The mounting plate 212 is used for mounting the suction cup 213, and the adjusting plate 211 has oblong holes to facilitate the position adjustment of the mounting plate 212. The mounting plate 212 is fixed by bolts engaging with the oblong holes on the adjusting plate 211.

[0035] Please refer to Figure 6 As shown, in this application, the material frame 40 is located in the middle front side of the two support frames 10. Several product fixtures 50 are stacked inside the material frame 40. The material frame 40 has a lifting function, capable of raising the corresponding product fixture 50 to the same height as the gripper assembly 306 of the pulling structure 30. Then, the pulling structure 30 actuates. The fourth linear module 302 drives the crossbeam 305 to move the gripper assembly 306 forward. Simultaneously, the gripper cylinder 3062 drives the clamping plate 3063 to open. When the limit pin 3065 touches the product fixture 50, the fourth linear module 302 stops, and the gripper cylinder 3062 drives the clamping plate 3063 to clamp the product fixture 50. Then, the fourth linear module 302 drives the crossbeam 305 to move backward, causing the gripper assembly 306 to move backward synchronously, thus clamping the product fixture 50. The product fixture 50 is pulled back three-quarters or four-fifths, so that one-quarter or one-fifth of the product fixture 50 remains inside the material frame 40, ensuring the stability of the product fixture 50. Then, the lifting structure 20 moves, the first linear module 202 drives the second support 209 to move forward, and then through the cooperation of the second linear module 206 and the third linear module 207, the suction cup 213 connected below the second support 209 is driven to adsorb the product fixture 50. Then, the gripper assembly 306 releases the product fixture 50 and moves backward under the action of the fourth linear module 302. Then, with the cooperation of the first linear module 202, the second linear module 206 and the third linear module 207, the product fixture 50 is completely pulled out of the material frame 40 and moved to the set position, completing the entire process of the lifting action.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pulling mechanism of an automatic capping machine comprising two support frames (10) arranged side by side, characterized in that: The two support frames (10) are equipped with a lifting structure (20) and a pulling structure (30). The lifting structure (20) includes a three-axis linear module. The three-axis linear module is connected to a second bracket (209). A horizontally arranged connecting plate (210) is connected below the second bracket (209). The connecting plate (210) is connected to several horizontally arranged adjusting plates (211). Several position-adjustable suction cups (213) are provided below each adjusting plate (211). The pulling structure (30) includes a fourth linear module (302) fixed on one of the two support frames (10) and a third linear guide rail (304) fixed on the other. The fourth linear module (302) and the third linear guide rail (304) are arranged front and rear. A crossbeam (305) is connected between the fourth linear module (302) and the third linear guide rail (304). Several gripper assemblies (306) are provided on the crossbeam (305).

2. A puller mechanism for an automatic capping machine as claimed in claim 1, wherein: The gripper assembly (306) includes a fixed plate (3061) connected to the crossbeam (305), and the fixed plate (3061) is connected to a horizontally forward-positioned gripper cylinder (3062), and the two pneumatic fingers of the gripper cylinder (3062) are respectively connected to a clamping plate (3063).

3. A puller mechanism for an automatic capping machine as claimed in claim 2, wherein: Each of the two clamping plates (3063) has a flexible pad (3064) on its opposite side.

4. The pull mechanism of an automatic capping machine as claimed in claim 2 wherein: One of the two clamping plates (3063) is provided with two vertically arranged limiting pins (3065), and the other of the two clamping plates (3063) is provided with a through hole (30631) for the limiting pins (3065) to pass through.

5. The pull mechanism of an automatic capping machine as claimed in claim 2 wherein: The fixing plate (3061) is provided with fixing bolts (3066) for connecting it to the crossbeam (305), the crossbeam (305) is provided with at least two slots (3051) arranged side by side, and the bottom of the fixing plate (3061) is provided with a protrusion for cooperating with the slots (3051).

6. The pull mechanism of an automatic capping machine as claimed in claim 1, wherein: A third base plate (301) is provided between the fourth linear module (302) and the support frame (10), and a fourth base plate (303) is provided between the third linear guide rail (304) and the support frame (10).

7. The pull mechanism of an automatic capping machine as claimed in claim 1, wherein: The three-axis linear module includes a first linear module (202) and a first linear guide rail (204) disposed on two support frames (10) and disposed in front of and behind each other. The first linear module (202) is disposed above the third linear guide rail (304). The first linear guide rail (204) is disposed above the fourth linear module (302). A first support (205) is horizontally disposed between the first linear guide rail (204) and the first linear module (202). A second linear module (206) that moves left and right is disposed on the first support (205). The second linear module (206) is connected to a third linear module (207) that is vertically disposed.

8. A puller mechanism for an automatic capping machine according to claim 7, wherein: A first base plate (201) is provided between the first linear module (202) and the corresponding support frame (10), a second base plate (203) is provided between the first linear guide rail (204) and the corresponding support frame (10), the third linear module (207) is connected to the second bracket (209), and a second linear guide rail (208) is provided between the third linear module (207) and the first bracket (205).

9. The pull mechanism of an automatic capping machine as claimed in claim 1, wherein: There are two connecting plates (210) arranged side by side, and two adjusting plates (211) arranged front and back. Each of the two connecting plates (210) is provided with an oblong hole for adjusting the position of the adjusting plate (211). Each of the two adjusting plates (211) is provided with a suction cup (213) for adjusting the position of the suction cup (213). Each suction cup (213) is connected to an mounting plate (212) between it and the adjusting plate (211).

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