Large-stroke lifting equipment

Abstract

The utility model discloses large-stroke lifting equipment which comprises a rack, a lifting mechanism and a conveying mechanism, the lifting mechanism is arranged in the rack, the conveying mechanism is arranged on one side of the lifting mechanism, a guide rod upper supporting plate and a guide rod lower cushion block are arranged in the lifting mechanism, a guide rod is arranged between the guide rod upper supporting plate and the guide rod lower cushion block, and a fixed seat cushion plate and a base are arranged in the lifting mechanism. According to the large-stroke lifting equipment, the equipment bearing mechanism and the power mechanism are reasonably arranged, and then the excellent transmission performance of the servo motor and the synchronous belt is fully utilized; the lifting stroke of the lifting equipment is not excessively limited and interfered by power sources such as an air cylinder and a lead screw, so that large-stroke lifting is realized with relatively low cost, the flexibility of upper and lower layer layout of a coating line body is greatly improved, and the application range of the coating line body to PCBs (Printed Circuit Board) is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a long-stroke lifting equipment. Background Art

[0002] The Chinese name of PCB is printed circuit board, also known as printed circuit board. It is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Because it is made by electronic printing technology, it is called a "printed" circuit board. At present, the PCB coating production line is directly stacked with a conveying mechanism on the lifting equipment to obtain the conveying function of the upper and lower layers of the coating line at different heights. However, in the prior art, the above-mentioned lifting equipment is often limited in its lifting stroke by its power structure. For example, the stroke of a cylinder-type lifting equipment will be restricted by the selected cylinder, and the stroke of a screw-type lifting equipment will be restricted by the motor because the motor of the screw is located on the lifting stroke trajectory. Therefore, a large-stroke lifting equipment is proposed to address the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a large-stroke lifting device to solve the problems raised in the above background.

[0004] To solve the above technical problems, the utility model specifically provides the following technical solutions: a large-stroke lifting device, including a frame, a lifting mechanism and a conveying mechanism, the upper and lower parts of the lifting mechanism are fixedly connected to the upper and lower inner walls of the frame, the upper and lower parts of the lifting mechanism respectively include a fixed seat pad, a guide rod upper support plate and a base, a guide rod lower pad, and a motor fixed seat, the fixed seat pad is fixedly connected to the bearing seat below, and the driven shaft is rotatably connected in the bearing seat, the upper part of the base is rotatably connected to the driving shaft, and the driving shaft and the driven shaft are connected through a synchronous wheel and a synchronous belt transmission, the guide rod upper support plate is fixedly connected to the guide rod lower pad, one side of the conveying mechanism is fixedly connected to the synchronous belt, and the conveying mechanism is slidably connected to the guide rod at the same time, the motor fixed seat is located on one side of the base, a servo motor is arranged on the motor fixed seat, the servo motor is transmission-connected to the driving shaft through a coupling, and the servo motor is extended in a direction away from the conveying mechanism to avoid the lifting trajectory of the conveying mechanism.

[0005] Preferably, the frame includes a frame bottom plate, and the lifting mechanism is fixedly arranged on one side above the frame bottom plate, and a through groove corresponding to the conveying mechanism is arranged in the middle of the frame bottom plate.

[0006] In the utility model, the conveying mechanism includes a movable frame, and a motor adjustment plate and a motor fixing plate connected to the motor adjustment plate are provided on the upper side of one side of the movable frame. A stepper motor is fixedly connected to the motor fixing plate, and the motor adjustment plate forms a position-adjustable connection with the inner wall of the movable frame.

[0007] Wherein, a first sprocket is provided at the front end of the stepper motor, a sprocket shaft is rotatably connected at the bottom of the movable frame, a second sprocket is provided on the sprocket shaft, and the first sprocket and the second sprocket are connected by a first transmission chain.

[0008] Furthermore, a third sprocket is provided on the sprocket shaft, and the conveying mechanism also includes a movable rail and a fixed rail located on a plane perpendicular to the sprocket shaft, the sprocket shaft is slidingly and rotatably connected to the movable rail, the sprocket shaft is rotatably connected to the fixed rail, a conveying chain is provided in the movable rail and the fixed rail, and the conveying chain is transmission-connected to the third sprocket.

[0009] Preferably, the upper part of the fixed rail is fixedly connected to a board sensor and a board stop assembly respectively.

[0010] In the utility model, one side of the synchronous belt is fixedly connected with a synchronous belt connecting plate, one side of the movable frame is slidably connected with the guide rod through two linear bushings, and one side of the movable frame is provided with an in-position sensing plate close to the linear bushing, and the in-position sensing plate is located between the two linear bushings.

[0011] Wherein, the synchronous belt connecting plate is fixedly connected to the middle part of the outer wall of the movable frame of the conveying mechanism, and the two guide rods are connected to the two sides of the movable frame of the conveying mechanism through the linear bushings.

[0012] In the utility model, lifting guide rod sleeves for fixing and installing the guide rod are arranged at the upper and lower ends of the guide rod, and a guide rod limiting ring is arranged between the lifting guide rod sleeve and the guide rod.

[0013] In the utility model, an alarm light is arranged on the top of the frame, and an operation panel is arranged on the side.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model has a lifting mechanism provided in a frame, and a conveying mechanism is provided on one side of the lifting mechanism, a guide rod upper support plate and a guide rod lower pad are provided in the lifting mechanism, and a guide rod is provided between the two, a fixed seat pad and a base are provided in the lifting mechanism, and a bearing seat is provided under the fixed seat pad, and a synchronous belt is provided between the bearing seat and the base, a servo motor is provided in the motor fixing seat, and the servo motor drives the synchronous belt to work by connecting the synchronous wheel and the coupling to the driving shaft, and the servo motor is extended in the direction away from the conveying mechanism, and can form an avoidance position with the lifting trajectory of the conveying mechanism, so that the conveying mechanism can perform large-stroke lifting, and the equipment bearing mechanism and the power mechanism are reasonably arranged, which makes the lifting stroke of the lifting equipment not excessively restrained and interfered by the power source such as the cylinder and the screw rod, thereby realizing large-stroke lifting at a relatively low cost, which not only greatly improves the flexibility of the upper and lower layer layout of the coating line body, but also expands the application range of the coating line body to the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is an overall schematic diagram of the utility model;

[0018] Figure 2 It is a front view schematic diagram of the conveying mechanism of the utility model;

[0019] Figure 3 It is a side view schematic diagram of the conveying mechanism of the utility model;

[0020] Figure 4 It is a rear view schematic diagram of the conveying mechanism of the utility model;

[0021] Figure 5 It is a schematic diagram of the conveying mechanism of the utility model.

[0022] The reference numerals in the accompanying drawings represent the following:

[0023] 1. Frame; 101. Alarm light; 102. Operation panel; 103. Frame bottom plate; 2. Lifting mechanism; 201. Fixed seat pad; 202. Guide rod upper support plate; 203. Bearing seat; 204. Driven shaft; 205. Synchronous belt; 206. Driving shaft; 207. Coupling; 208. Motor fixed seat; 209. Lifting guide rod sleeve; 210. Guide rod limit ring; 211. Guide rod; 212. In-position sensor; 213. Base ; 214, guide rod lower pad; 215, linear bushing; 216, synchronous wheel; 217, servo motor; 218, synchronous belt connecting plate; 3, conveying mechanism; 301, movable frame; 302, sprocket shaft; 303, stepping motor; 304, motor fixing plate; 305, motor adjustment plate; 306, first sprocket; 307, first transmission chain; 308, moving rail; 309, to-plate sensor; 310, fixed rail; 311, stop plate assembly. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 As shown, the utility model provides a large-stroke lifting device, including a frame 1, a lifting mechanism 2 and a conveying mechanism 3. The upper and lower parts of the lifting mechanism 2 are fixedly connected to the upper and lower inner walls of the frame 1. The upper and lower parts of the lifting mechanism 2 respectively include a fixed seat pad 201, a guide rod upper support plate 202 and a base 213, a guide rod lower pad 214, and a motor fixed seat 208. The lower part of the fixed seat pad 201 is fixedly connected to a bearing seat 203, and the bearing seat 203 is rotatably connected to a driven shaft 204. The upper part of the base 213 is rotatably connected to a driving shaft 206, and the driving shaft 206 and the driven shaft 204 are connected to each other. The guide rod 211 is fixedly connected between the guide rod upper support plate 202 and the guide rod lower pad 214 through the synchronous wheel 216 and the synchronous belt 205. One side of the conveying mechanism 3 is fixedly connected to the synchronous belt 205. The conveying mechanism 3 is also slidably connected to the guide rod 211. The motor fixing seat 208 is located on one side of the base 213. A servo motor 217 is arranged on the motor fixing seat 208. The servo motor 217 is connected to the driving shaft 206 through the coupling 207. The servo motor 217 is extended in the direction away from the conveying mechanism 3 to avoid the lifting trajectory of the conveying mechanism 3.

[0026] Please refer to Figure 1In this embodiment, the frame 1 includes a frame bottom plate 103, and a lifting mechanism 2 is fixedly arranged on one side above the frame bottom plate 103, and a through groove corresponding to the conveying mechanism 3 is arranged in the middle of the frame bottom plate 103.

[0027] In this embodiment, a motor adjustment plate 305 and a motor fixing plate 304 connected to the motor adjustment plate 305 are provided above one side of the movable frame 301, a stepper motor 303 is fixedly connected to the motor fixing plate 304, and the motor adjustment plate 305 forms a positionally adjustable connection with the inner wall of the movable frame 301.

[0028] The front end of the stepper motor 303 is provided with a first sprocket 306 , and the movable frame 301 is rotatably connected to the sprocket shaft 302 at the bottom. The sprocket shaft 302 is provided with a second sprocket. The first sprocket 306 and the second sprocket are connected through a first transmission chain 307 .

[0029] Further, the sprocket shaft 302 is also provided with a third sprocket, the conveying mechanism 3 also includes a movable rail 308 and a fixed rail 310 located on a plane perpendicular to the sprocket shaft 302, the fixed rail 310 and the movable rail 308 can be adjusted in distance to convey products of different sizes, the sprocket shaft 302 and the movable rail 308 are slidably and rotatably connected, the sprocket shaft 302 and the fixed rail 310 are rotatably connected, a conveying chain is provided in the movable rail 308 and the fixed rail 310, and the conveying chain is connected to the third sprocket by transmission. The power output by the stepper motor 303 can be transmitted to the sprocket shaft 302 by the first sprocket 306 and the first transmission chain 307, the sprocket shaft 302 includes a hexagonal transmission shaft connected to the second sprocket and the third sprocket, the hexagonal transmission shaft can rotate to drive the second sprocket and the third sprocket to rotate, and then can drive the conveying chain located in the fixed rail 310 and the movable rail 308 groove to operate.

[0030] In this embodiment, the upper side of the fixed rail 310 is fixedly connected to the plate sensor 309 and the plate stop assembly 311, respectively, so as to control the product to stop at the set position through inductive feedback.

[0031] In this embodiment, a synchronous belt connecting plate 218 is fixedly connected to one side of the synchronous belt 205, and one side of the movable frame 301 is slidably connected to the guide rod 211 through two linear bushings 215. A position sensing plate 212 is provided on one side of the movable frame 301, close to the linear bushing 215, and the position sensing plate 212 is located between the two linear bushings 215.

[0032] The synchronous belt connecting plate 218 is fixedly connected to the middle of the outer wall of the movable frame 301 of the conveying mechanism 3, and the two guide rods 211 are connected to both sides of the movable frame 301 of the conveying mechanism 3 through linear bushings 215, so that the lifting and lowering of the conveying mechanism 3 is stable.

[0033] The synchronous belt connecting plate 218 and the linear bushing 215 are connected to the movable frame 301 in the conveying mechanism 3. Under the action of the synchronous belt 205, the entire conveying mechanism 3 can move up and down with a large stroke. At the same time, the in-position sensor plate 212 in the middle of the linear bushing 215 controls the entire conveying mechanism 3 to stop working through the feedback position.

[0034] In this embodiment, lifting guide rod sleeves 209 for fixing the guide rod 211 are provided at the upper and lower ends of the guide rod 211 , and a guide rod limiting ring 210 is provided between the lifting guide rod sleeve 209 and the guide rod 211 .

[0035] In this embodiment, the alarm light 101 and the operation panel 102 provided on the rack 1 provide prompts and control for the internal structure of the rack 1, and the rack base plate 103 provided at the bottom of the rack 1 is arranged after rigorous mechanical calculation and reasonable structural design, which not only allows the lowering position of the conveying mechanism 3 but also avoids stress concentration so as to have sufficient strength.

[0036] Working principle:

[0037] A lifting mechanism 2 is provided in the frame 1, and a conveying mechanism 3 is provided on the lifting mechanism 2. A guide rod upper support plate 202 and a guide rod lower pad 214 are provided on the upper and lower parts of the lifting mechanism 2, respectively. A guide rod 211 is provided between the guide rod upper support plate 202 and the guide rod lower pad 214. The guide rod 211 is connected to a movable frame 301 in the conveying mechanism 3 by a linear bushing 215 sleeved on the guide rod 211. In this way, the entire conveying mechanism 3 can rely on the lifting guide of the guide rod 211 to stably perform large-stroke lifting and lowering movements.

[0038] A fixed seat pad 201 and a base 213 and a motor fixed seat 208 are respectively provided on the upper and lower parts of the lifting mechanism 2, and a driven shaft 204 and a driving shaft 206 are respectively inserted into the bearing seat 203 and the base 213 provided below the fixed seat pad 201, and at the same time, the driven shaft 204 and the driving shaft 206 are connected through a synchronous wheel 216 and a synchronous belt 205, and the driving shaft 206 can drive the driven shaft 204 to rotate by the synchronous belt 205, and the servo motor 217 drives the synchronous wheel 216 on the driving shaft 206 to rotate, and a synchronous belt connecting plate 218 is provided on the synchronous belt 205 to be connected to the middle part of the back side of the movable frame 301 in the conveying mechanism 3, and the synchronous belt 205 is the driving force for the entire conveying mechanism 3 to move up and down, and the servo motor 217 is extended in the direction away from the conveying mechanism 3, and can form a avoidance position with the lifting trajectory of the conveying mechanism 3, so that the conveying mechanism 3 can be lifted and lowered with a large stroke.

[0039] In addition, the frame bottom plate 103 of the equipment has undergone rigorous mechanical calculations and reasonable structural design, which not only allows the conveying mechanism 3 to descend but also avoids stress concentration so that it has sufficient strength. The reasonable arrangement of the stepper motor 303 also makes the descending process of the conveying mechanism 3 unrestrained. Therefore, this process realizes the long-stroke conveying of the PCB board from the upper layer to the lower layer of the line body.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A long-stroke lifting device, comprising a frame (1), a lifting mechanism (2) and a conveying mechanism (3), characterized in that: The upper and lower parts of the lifting mechanism (2) are fixedly connected to the upper and lower inner walls of the frame (1); the upper and lower parts of the lifting mechanism (2) respectively include a fixed seat pad (201), a guide rod upper support plate (202) and a base (213), a guide rod lower pad (214), and a motor fixed seat (208); the lower part of the fixed seat pad (201) is fixedly connected to a bearing seat (203), and the bearing seat (203) is rotatably connected to a driven shaft (204); the upper part of the base (213) is rotatably connected to a driving shaft (206), and the driving shaft (206) and the driven shaft (204) are connected through a synchronous wheel (216) and a synchronous belt (205); the guide rod upper support plate (202) and a base (213) are connected to the motor fixed seat (208); A guide rod (211) is fixedly connected between the plate (202) and a pad (214) under the guide rod; one side of the conveying mechanism (3) is fixedly connected to the synchronous belt (205); the conveying mechanism (3) is also slidably connected to the guide rod (211); the motor fixing seat (208) is located on one side of the base (213); a servo motor (217) is arranged on the motor fixing seat (208); the servo motor (217) is transmission-connected to the driving shaft (206) via a coupling (207); the servo motor (217) is extended in a direction away from the conveying mechanism (3) to avoid the lifting track of the conveying mechanism (3).

2. A long-stroke lifting device according to claim 1, characterized in that: The frame (1) comprises a frame bottom plate (103), and the lifting mechanism (2) is fixedly arranged on one side above the frame bottom plate (103), and a through groove corresponding to the conveying mechanism (3) is arranged in the middle of the frame bottom plate (103).

3. A long-stroke lifting device according to claim 1, characterized in that: The conveying mechanism (3) comprises a movable frame (301), and a motor adjustment plate (305) and a motor fixing plate (304) connected to the motor adjustment plate (305) are provided on one side of the movable frame (301). A stepping motor (303) is fixedly connected to the motor fixing plate (304), and the motor adjustment plate (305) forms a positionally adjustable connection with the inner wall of the movable frame (301).

4. A long-stroke lifting device according to claim 3, characterized in that: A first sprocket (306) is provided at the front end of the stepping motor (303), and a sprocket shaft (302) is rotatably connected to the bottom of the movable frame (301), a second sprocket is provided on the sprocket shaft (302), and the first sprocket (306) and the second sprocket are connected in transmission via a first transmission chain (307).

5. A long-stroke lifting device according to claim 4, characterized in that: A third sprocket is also arranged on the sprocket shaft (302); the conveying mechanism (3) further comprises a movable rail (308) and a fixed rail (310) located on a plane perpendicular to the sprocket shaft (302); the sprocket shaft (302) is slidably and rotationally connected to the movable rail (308); the sprocket shaft (302) is rotationally connected to the fixed rail (310); a conveying chain is arranged inside the movable rail (308) and the fixed rail (310); and the conveying chain is drivingly connected to the third sprocket.

6. A long-stroke lifting device according to claim 5, characterized in that: The top of the track fixing (310) is fixedly connected to a board sensor (309) and a board stopping assembly (311) respectively.

7. A long-stroke lifting device according to claim 3, characterized in that: A synchronous belt connecting plate (218) is fixedly connected to one side of the synchronous belt (205), and one side of the movable frame (301) is slidably connected to the guide rod (211) through two linear bushings (215). An in-position sensing plate (212) is provided on one side of the movable frame (301), close to the linear bushings (215), and the in-position sensing plate (212) is located between the two linear bushings (215).

8. A long-stroke lifting device according to claim 7, characterized in that: The synchronous belt connecting plate (218) is fixedly connected to the middle of the outer wall of the movable frame (301) of the conveying mechanism (3), and the two guide rods (211) are connected to both sides of the movable frame (301) of the conveying mechanism (3) through the linear bushings (215).

9. A long-stroke lifting device according to claim 1, characterized in that: The upper and lower ends of the guide rod (211) are provided with lifting guide rod sleeves (209) for fixing the guide rod (211), and a guide rod limiting ring (210) is provided between the lifting guide rod sleeve (209) and the guide rod (211).

10. The long-stroke lifting device according to claim 1, characterized in that: The frame (1) is provided with an alarm light (101) on the top and an operation panel (102) on the side.

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