Automatic blanking screw assembling equipment

Abstract

The utility model discloses automatic blanking screw assembling equipment, which comprises a feeding device, a screw assembling device, a screw feeding device and a blanking device, the feeding device comprises a fixed table and a first transfer component used for driving the fixed table to move, and the fixed table is used for fixing a workpiece on which a screw is screwed; the screw assembling device comprises a clamping nozzle assembly, a screw pressing assembly matched with the clamping nozzle assembly and a second transferring assembly used for driving the clamping nozzle assembly and the pressing assembly to move synchronously, the clamping nozzle assembly is provided with a material cavity used for positioning the screws, and the screw pressing assembly is used for driving the screws in the material cavity to move and move out of the material cavity to be matched with the workpieces; the screw feeding device comprises a feeding assembly used for arranging screws in order and a suction assembly, and the suction assembly is used for conveying the screws on the feeding assembly to a material cavity of the clamping nozzle assembly. The discharging device comprises a discharging clamping jaw and a third transferring assembly driving the discharging clamping jaw to move, and the discharging clamping jaw is used for clamping the workpieces.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment, and in particular to an automatic screw assembly equipment. Background Technology

[0002] Automatic screw fastening equipment is widely used in industries such as home appliances, automobiles, and electronic communications. Currently, automatic screw fastening equipment on the market is generally divided into two types: air-blowing and air-suction. Air-blowing screw fastening equipment operates by blowing screws through a supply pipe into the screw clamp via an air feeder, and then a cylinder drives an electric screwdriver downwards to fasten the screws. Air-suction screw fastening equipment operates by using a telescopic mechanism to drive a screw sleeve up and down. The sleeve mechanism has a vacuum connector on its side wall, and a servo screw drives a suction head to pick up the screw at the screw picking point, then moves to the product fastening point for fastening. The production line used with this type of equipment is relatively long and occupies a large space. Utility Model Content

[0003] This invention addresses the shortcomings of existing screw-fastening equipment, which results in long production lines that occupy a large amount of space. It provides an automatic screw-feeding assembly device.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic screw assembly device, characterized by comprising a feeding device, a screw assembly device, a screw supply device, and a screw unloading device.

[0005] The feeding device includes a fixed platform and a first transfer assembly for driving the fixed platform to move, the fixed platform being used to fix the workpiece to be screwed on;

[0006] The screw assembly device includes a clamping assembly, a screw pressing assembly that cooperates with the clamping assembly, and a second transfer assembly for driving the clamping assembly and the pressing assembly to move synchronously. The clamping assembly is provided with a material cavity for positioning the screw, and the screw pressing assembly is used to drive the screw in the material cavity to move and move out of the material cavity to cooperate with the workpiece.

[0007] The screw feeding device includes a feeding component and a suction component for orderly arranging screws. The suction component is used to transport the screws on the feeding component to the material chamber of the clamping component.

[0008] The unloading device includes unloading jaws and a third transfer component that drives the unloading jaws to move. The unloading jaws are used to grip the workpiece.

[0009] By adopting the above technical solution, the technical problem solved is how to quickly screw onto a workpiece. This is achieved by placing the workpiece on a fixed table, feeding the screw assembly device with a screw feeding device, assembling the workpiece with screws using the screw assembly device, and unloading the workpiece with screws installed using a unloading device.

[0010] The present invention is further configured such that: the clamping assembly includes a clamping seat and a movable half-clamping block pivotally connected to the clamping seat; at least two movable half-clamping blocks are provided, each of which has a positioning groove; the positioning grooves of all movable half-clamping blocks are arranged opposite each other to form a material cavity; the material cavity is provided with a limiting step for restricting the movement of the screw; the screw pressing assembly includes a punch, a first rotary motor that drives the punch to rotate, and a pressing transfer device that drives the punch to press down; when the pressing transfer device drives the punch into the material cavity and abuts against the screw in the material cavity, it also drives the movable half-clamping block to rotate around its pivot point; when the movable half-clamping block rotates around its pivot point, the limiting step no longer restricts the screw, and the screw in the material cavity is controlled by the pressing transfer device to move out of the material cavity and cooperate with the workpiece.

[0011] By adopting the above technical solution, the screw is clamped and positioned by the clamping assembly, and then moved to the corresponding position on the fixed platform by the second transfer assembly.

[0012] The present invention is further configured such that: the clamping mouth seat has a side feed port, the side feed port is configured to communicate with the material cavity, and the suction component is configured to communicate with the side feed port.

[0013] By adopting the above technical solution, the side feed port is set in conjunction with the material cavity, which facilitates the feeding assembly to put screws into the material cavity.

[0014] The present invention is further configured such that the feeding device also includes a side-tilting component, which is used to drive the fixed platform to rotate at a certain angle.

[0015] By adopting the above technical solution, the side of the workpiece can be easily rotated using the rotating component.

[0016] The present invention is further configured such that the fixed platform is provided with a contour positioning seat that cooperates with the workpiece.

[0017] By adopting the above technical solution, the function of the contour positioning seat is to restrict the movement of the workpiece.

[0018] The present invention is further configured such that: the fixed platform is provided with a pressure plate and a pressing driver, the pressing driver being used to drive the pressure plate to press or disengage from the workpiece.

[0019] By adopting the above technical solution, the workpiece is pressed by the pressure plate, thereby preventing the workpiece from shifting position when the fixed table reverses.

[0020] The present invention is further configured such that the pressing driver is a rotary pressing cylinder.

[0021] By adopting the above technical solution, the pressure plate can be driven to press down by rotating the downward pressure cylinder. When releasing the workpiece, similar to other rotating downward pressure cylinders, the pressure plate can also rotate as it moves away from the workpiece, thus dislocating it from the workpiece and facilitating the unloading gripper to pick up the workpiece.

[0022] The present invention is further configured such that: the pressure plate is provided with a clearance hole for avoiding the installation position.

[0023] By adopting the above technical solution, a clearance hole is provided to avoid the installation position, thereby further increasing the pressing area of ​​the pressure plate and increasing the stability during pressing.

[0024] The present invention is further configured such that: the second transfer component includes a first translation component and a first lifting component, and the third transfer component includes a second translation component and a second lifting component.

[0025] By adopting the above technical solutions, the overall range of motion can be expanded through translational and lifting transfers, and the device position can be better optimized.

[0026] The present invention is further configured such that: the feeding device further includes a feeding slide, and the feeding slide is provided with a slope.

[0027] By adopting the above technical solution, the workpiece can be easily guided by the unloading slide. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an automatic screw assembly and feeding device.

[0029] Figure 2 This is a schematic diagram of the overall structure of an automatic screw assembly and feeding device.

[0030] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 This is a combined sectional view of the clamping nozzle assembly;

[0032] Figure 5 This is a schematic diagram of the feeding device and pressure plate status.

[0033] The parts referred to by the numbers in the above attached figures are as follows: 1. Feeding device; 11. Fixed platform; 12. Side tilting assembly; 121. Pivot seat; 122. Second rotary motor; 13. First transfer assembly; 14. Contouring positioning seat; 15. Pressure plate; 16. Pressing driver; 17. Clearance hole; 2. Screw assembly device; 21. Grip assembly; 211. Grip seat; 212. Movable half-clamp; 213. Positioning groove; 214. Limiting... 215. Side feed inlet; 216. Material cavity; 22. Screw pressing assembly; 221. Screw head; 222. First rotary motor; 223. Pressing transfer assembly; 23. Second transfer assembly; 231. First translation assembly; 232. First lifting assembly; 3. Screw feeding device; 4. Unloading device; 41. Unloading gripper; 42. Third transfer assembly; 421. Second translation assembly; 422. Second lifting assembly; 43. Unloading slide. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0035] Example:

[0036] An automatic screw assembly equipment, combined with Figure 1 It includes a feeding device 1, a screw assembly device 2, a screw feeding device 3, and a unloading device 4. The feeding device 1 is used to drive the workpiece, and the screw assembly device 2 is used to assemble the workpiece with screws and to clamp the workpiece with screws installed.

[0037] See Figure 2 and Figure 5The feeding device 1 includes a fixed platform 11, a side-tilting assembly 12 for driving the fixed platform to rotate, and a first transfer assembly 13. The first transfer assembly 13 uses a linear module to drive the fixed platform 11 and the side-tilting assembly 12 to move synchronously. The side-tilting assembly 12 includes a pivot seat 121 for pivotally connecting both ends of the fixed platform 11 and a second rotary motor 122 for driving the rotary table to rotate. The rotary motor is a stepper motor. The fixed platform 11 is connected to a pivot shaft by screw threads. The pivot shaft is pivotally connected to the pivot seat 121. The portion of the pivot shaft extending out of the pivot seat 121 is connected to the output end of the rotary motor through a coupling. The fixed platform 11 is detachably connected to a contour positioning seat 14 that mates with the workpiece by screws. The contour positioning seat 14 is provided with a position that mates with the surface of the workpiece. The contoured surface that fits against the side is used for fixing the workpiece. The fixed table 11 is equipped with a pressure plate 15 and a pressing driver 16 that drives the pressure plate 15 to press the workpiece. Under the action of the pressing driver 16, the pressure plate 15 presses the workpiece on the contoured positioning seat 14. The pressure plate 15 is provided with a clearance hole 17, which avoids the holes on the workpiece used for mounting screws. The pressing driver 16 adopts a rotary pressing cylinder. The advantage of using a rotary pressing cylinder is that the workpiece can be pressed down by the pressure plate 15. After the workpiece is assembled with screws, the pressure plate 15 moves away from the workpiece under the action of the rotary pressing cylinder. At the same time, the pressure plate 15 rotates so that the pressure plate 15 is staggered from the workpiece, which makes it easier for the unloading device 4 to pick up the workpiece.

[0038] See Figure 2 and Figure 3The screw assembly device 2 includes a clamping jaw assembly 21, a screw pressing assembly 22 that cooperates with the clamping jaw assembly 21, and a second transfer assembly 23 for driving the clamping jaw assembly 21 and the pressing assembly to move synchronously. The clamping jaw assembly 21 includes a clamping jaw seat 211 and movable half-clamping blocks 212 pivotally connected to the clamping jaw seat 211. At least two movable half-clamping blocks 212 are pivotally connected to the clamping jaw seat 211. In this embodiment, only two movable half-clamping blocks 212 are provided. Each movable half-clamping block 212 is provided with a positioning groove 213. The positioning grooves 213 of all movable half-clamping blocks are arranged opposite each other to form a material cavity 216. In this embodiment, the two movable half-blocks are symmetrically arranged. The material cavity 216 includes an upward-facing large diameter and a downward-facing small diameter. The diameter difference between the large diameter and the small diameter forms a limiting step. 214, the limiting step 214 is set with a slope. The limiting step 214 is used to limit the movement of the screw. Under natural gravity, the two movable half-clamping blocks 212 are fitted together. The clamping mouth seat 211 has a through hole with the same diameter as the material cavity 216. The through hole is used for the head of the screw pressing assembly to enter. The clamping mouth seat 211 has a side feed port 215 that communicates with the material cavity 216. The side feed port 215 is set at an inclination. The side feed port 215 is connected to the screw feeding device 3. The screw feeding device 3 puts the screw into the material cavity 216 through the side feed port 215. Since the screw has the diameter difference between the head and the threaded part, it can be locked with the limiting step 214. The threaded part of the screw extends out of the material cavity 216, which is convenient for relative matching with the workpiece.

[0039] See Figure 3 and Figure 4 The screw pressing assembly 22 includes a screw head 221, a first rotary motor 222 that drives the screw head 221 to rotate, and a pressing transfer device 223 that drives the screw head 221 to press down. In this embodiment, the first rotary motor 222 is a torque motor. The advantage of a torque motor is that it can control the torque on the screw, avoiding issues such as screw stripping due to excessive torque. In this embodiment, the pressing transfer device 223 is a cylinder. When the pressing transfer device 223 drives the screw head 221 to press down, the screw head 221 enters the material yard and abuts against the head of the screw. 23 continues to move. Since the limiting step 214 is set with a slope, it drives the movable half-clamping block 212 to rotate around its pivot. When the movable half-clamping block 212 rotates around its pivot, the limiting step 214 no longer restricts the screw. The screw in the material cavity 216 is controlled by the downward pressure transfer 223 to move out of the material cavity 216 and cooperate with the workpiece. The first rotary motor 222 drives the screw head 221 to rotate. The screw head 221 cooperates with the head of the screw so that the screw and the screw head 221 rotate synchronously, thereby completing the screw assembly work of the workpiece.

[0040] See Figure 1 and Figure 2The screw feeding device 3 includes a feeding assembly and a suction assembly for orderly arranging screws. The suction assembly transports the screws from the feeding assembly to the material chamber 216 of the clamping assembly 21. The feeding assembly can use a vibratory feeder in conjunction with a conveyor rail to arrange the screws, so that the screws enter the material chamber 216 in a connected manner. The suction assembly includes an air pipe and an air source. In this embodiment, negative pressure suction is used. The air pipe is connected to both the transmission rail of the feeding assembly and the side inlet 215. The air source is a vacuum pump or a vacuum tube generator that works with the air pump. The air pipe sends the screws from the feeding assembly into the material chamber 216 through the air source. The feeding assembly and suction assembly are existing technologies and will not be described in detail. The unloading assembly includes an unloading clamp 41, a third transfer assembly 42 that drives the unloading clamp 41 to move, and an unloading slide 43. The second transfer assembly 23 includes a first translation assembly 231 and a first lifting assembly 232 installed on the first translation assembly 231. The pressing component is fixedly connected to the first lifting component 232. The third transfer component 42 includes a second translation component 421 and a second lifting component 422 installed on the second translation component 421. The unloading gripper 41 is fixedly connected to the second lifting component 422 by screws. The first translation component 231, the first lifting component 232, the second translation component 421 and the second lifting component 422 are all linear modules. The first translation component 231 and the second translation component 421 are both arranged parallel to the horizontal plane. The first lifting component 232 and the second lifting component 422 are both arranged perpendicular to the ground. The unloading gripper 41 is a flat pneumatic finger. The pneumatic finger can grip the screw-installed workpiece from the fixed table 11 and place it on the unloading slide 43. The unloading slide 43 is provided with a slope to facilitate the sliding of the workpiece. A storage box or assembly line is set below the unloading slide 43 so that the installed workpiece can enter the next process.

Claims

1. An automatic screw assembly device, characterized in that: The device includes a feeding device (1), a screw assembly device (2), a screw feeding device (3), and a unloading device (4). The feeding device (1) includes a fixed platform (11) and a first transfer assembly (13) for driving the fixed platform (11) to move, the fixed platform (11) being used to fix the workpiece with screws on it; The screw assembly device (2) includes a clamping assembly (21), a screw pressing assembly (22) that cooperates with the clamping assembly (21), and a second transfer assembly (23) for driving the clamping assembly (21) and the pressing assembly to move synchronously. The clamping assembly (21) is provided with a material cavity (216) for positioning the screw. The screw pressing assembly (22) is used to drive the screw in the material cavity (216) out of the material cavity (216) and cooperate with the workpiece. The screw feeding device (3) includes a feeding component and a suction component for orderly arranging screws. The suction component is used to transport the screws on the feeding component to the material cavity (216) of the clamping component (21). The unloading device (4) includes an unloading gripper (41) and a third transfer assembly (42) for moving the unloading gripper (41), the unloading gripper (41) being used to grip the workpiece.

2. The automatic screw assembly equipment according to claim 1, characterized in that: The clamping assembly (21) includes a clamping seat (211) and a movable half-clamping block (212) pivotally connected to the clamping seat (211). At least two movable half-clamping blocks (212) are provided, each with a positioning groove (213). The positioning grooves (213) of all movable half-clamping blocks (212) are arranged opposite each other to form a material cavity (216). The material cavity (216) is provided with a limiting step (214) for restricting screw movement. The screw pressing assembly (22) includes a ferrule (221) and a driving ferrule (222). 1) A first rotating motor (222) and a pressing transfer (223) that drives the die head (221) to press down. When the pressing transfer (223) drives the die head (221) into the material cavity (216) and abuts against the screw in the material cavity (216), it drives the movable half clamp (212) to rotate around its pivot. When the movable half clamp (212) rotates around its pivot, the limiting step (214) no longer restricts the screw. The screw in the material cavity (216) is controlled by the pressing transfer (223) to move out of the material cavity (216) and cooperate with the workpiece.

3. The automatic screw assembly equipment according to claim 2, characterized in that: The clamp seat (211) has a side feed port (215), which is connected to the material cavity (216), and the suction assembly is connected to the side feed port (215).

4. The automatic screw assembly equipment according to claim 1, characterized in that: The feeding device (1) also includes a side-tilting assembly (12), which is used to drive the fixed platform (11) to rotate at a certain angle.

5. The automatic screw assembly equipment according to claim 4, characterized in that: The fixed platform (11) is provided with a contour positioning seat (14) that cooperates with the workpiece.

6. The automatic screw assembly equipment according to claim 4, characterized in that: The fixed platform (11) is provided with a pressure plate (15) and a pressing driver (16), the pressing driver (16) being used to drive the pressure plate (15) to press or disengage from the workpiece.

7. The automatic screw assembly equipment according to claim 6, characterized in that: The press driver (16) is a rotary press cylinder.

8. The automatic screw assembly equipment according to claim 6, characterized in that: The pressure plate (15) is provided with a clearance hole (17) for avoiding the installation position.

9. The automatic screw assembly equipment according to claim 1, characterized in that: The second transfer assembly (23) includes a first translation assembly (231) and a first lifting assembly (232), and the third transfer assembly (42) includes a second translation assembly (421) and a second lifting assembly (422).

10. An automatic screw assembly device according to claim 1, characterized in that: The feeding device (4) also includes a feeding slide (43), which is provided with a slope.

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