Integrated plane screw fastening equipment

Abstract

The invention relates to the technical field of screw turning equipment, and discloses integrated plane screw fastening equipment which comprises a platform for placing a to-be-mounted part, linear modules are arranged above the platform in the X-axis direction and the Y-axis direction, one of the two linear modules is in transmission connection with the other linear module, and the lower portion of the other linear module is in transmission connection with a right-angle electric screw gun. The position of the right-angle electric screw gun is transmitted to a screw hole position of a to-be-mounted part through the linear module; a positioning structure is further arranged on the platform and used for guiding the working end of the right-angle electric screw gun, and the position of the screw of the to-be-installed part is further accurate. Through mutual cooperation of the linear modules, position adjustment of the right-angle electric screw gun is achieved, so that the device can be applied to different screw positions, the lifting structure is arranged below the right-angle electric screw gun, the secondary guide mold is arranged on the lifting structure, and positioning of the position of a workpiece to be machined is guaranteed through arrangement of the base and the holder.

Description

Technical Field

[0001] The present invention relates to the field of screw-tightening equipment, and in particular to an integrated plane screw fastening equipment. Background Art

[0002] In modern manufacturing, screw fastening, a fundamental assembly process, is widely used in a variety of fields, including electronics, home appliances, and automotive parts. Statistics show that in the assembly of small and medium-sized products, screw fastening accounts for 30%-40% of the total assembly time, directly impacting production efficiency and cost control. Currently, most equipment uses screw arrays for planar fastening.

[0003] In the existing production model, although large-scale intelligent tightening workstations have the advantages of high precision and high speed, the purchase cost of a single device is as high as 500,000 to 2 million yuan, and the supporting programming, debugging and maintenance costs are high, making it difficult for small and medium-sized enterprises to afford it. Therefore, more than 85% of small and medium-sized manufacturing companies still rely on manual handheld electric screwdrivers to perform one-by-one tightening operations. This method has significant defects: First, affected by human fatigue and operating proficiency, the average tightening efficiency is only 12-18 pieces / minute, which is difficult to meet the annual batch production demand of more than 100,000 pieces; second, manual operation consistency is poor, and quality problems such as substandard torque and missing tightening are prone to occur, and the rework rate is as high as 5%-8%; third, long-term repetitive labor can easily cause occupational strain injuries to workers, increasing the employment risks of enterprises; therefore, the present invention proposes an integrated flat screw fastening device to solve the above problems. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an integrated plane screw fastening device.

[0005] The present invention provides an integrated flat screw fastening device that adopts the following technical solutions:

[0006] An integrated flat screw fastening device includes a platform for placing the part to be mounted, with linear modules provided above the platform in both the X-axis and Y-axis directions. One of the two linear modules is connected to the other in a transmission manner, and the other is connected to a right-angle electric screw gun below the other. The position of the right-angle electric screw gun is transmitted to the screw hole position of the part to be mounted via the linear module.

[0007] A positioning structure is also provided on the platform, which guides the working end of the right-angle electric screw gun to further accurately position the screws of the parts to be installed.

[0008] Preferably, a fastener is provided on the outside of the right-angle electric screw gun, and the fastener is connected to the linear module transmission component.

[0009] Preferably, the fastener includes a base plate fixedly connected to the linear module by screws and a locking buckle located below the base plate, and the locking buckle is clamped on the outside of the right-angle electric screw gun.

[0010] Preferably, the platform includes a base for support on the periphery, a fixed bottom plate is installed on the inner side of the base, a cylinder is fixedly connected to the bottom of the base plate, and a movable plate located above the bottom plate is installed at the output end of the cylinder. The platform also includes a gantry installed on the base.

[0011] Preferably, the positioning structure includes a base fixed to the movable plate with bolts, and a ridge is provided on the base.

[0012] Preferably, the positioning structure further comprises a retaining frame located above the base, a limiting piece for fitting with the ridge is provided on the inner side of the retaining frame, and a guide block for guiding the right-angle electric screw gun is further provided on the top of the retaining frame.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] Through the mutual cooperation of the linear modules, the position adjustment of the right-angle electric screw gun is realized so that the device can be applied to different screw positions. A lifting structure is set under the right-angle electric screw gun, and a secondary guide mold is set on the lifting structure. The position positioning of the workpiece to be processed is ensured by the setting of the base and the retaining frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an isometric structural diagram of an embodiment of the invention.

[0016] Figure 2 It is a bottom-up isometric structural diagram of an embodiment of the invention.

[0017] Figure 3 It is a schematic diagram of the mold position structure of an embodiment of the invention.

[0018] Figure 4 Schematic diagram of the retainer structure of an embodiment of the invention.

[0019] Figure 5 It is a schematic diagram of the base structure of an embodiment of the invention.

[0020] Figure 6 It is an electrical control diagram of an embodiment of the invention.

[0021] Figure 7 It is an electrical control diagram of an embodiment of the invention.

[0022] Explanation of the accompanying reference numerals: 1. Base; 2. Bottom plate; 21. Movable plate; 3. Gantry; 4. Linear module one; 5. Linear module two; 6. Base plate; 61. Locking buckle; 7. Right-angle electric screw gun; 8. Cylinder; 9. Pneumatic solenoid valve; 10. Control button; 11. Retaining frame; 1101. Limiting plate; 1102. Guide block; 12. Base; 12. Ridge; 13. PLC module; 14. Electric screwdriver power switch; 15. PLC power supply. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 - Attachment Figure 7 The present invention is described in further detail.

[0024] Example 1: Reference Figure 1 - Figure 7 , an integrated plane screw fastening device, including a platform for placing the part to be installed, a linear module is set above the platform in the X-axis and Y-axis directions, one of the two linear modules is connected to the other by transmission, and the other is connected to the right-angle electric screw gun 7 by transmission below. The position of the right-angle electric screw gun 7 is transmitted to the screw hole position of the part to be installed through the linear module; for example: Figure 1-Figure 3 As shown, the X-axis linear module 1 4 is located at the top, and the Y-axis linear module 2 5 is located at the bottom. The linear module 2 5 is installed on the drive assembly of the linear module 1 4. The rotation of the linear module 1 4 realizes the position transmission of the linear module 2 5 in the X-axis direction; the movement of the linear module 2 5 will drive the position transmission of the right-angle electric screw gun 7. Of course, the same transmission effect can be achieved by setting the linear module 2 5 on the X-axis and the linear module 1 4 on the Y-axis, and both can ultimately realize the transmission of the right-angle electric screw gun 7 into place. The linear modules can be controlled manually or electrically, but regardless of which control method is used, the linear modules are equipped with a stepper motor installation interface to facilitate subsequent electronic control upgrades.

[0025] A positioning structure is also provided on the platform, which guides the working end of the right-angle electric screw gun 7 to further accurately position the screws of the parts to be installed.

[0026] The outside of the right-angle electric screw gun 7 is provided with fasteners, which are connected to the linear module transmission parts. According to the actual arrangement, Figure 1-Figure 3 The linear module 2 5 located below is selected to connect with the fastener, and its position transmission is performed by the linear module 2 5. An electric screwdriver power switch 14 for powering the right-angle electric screw gun 7 is provided below the base plate 2.

[0027] The fastener includes a base plate 6 fixedly connected to the linear module by screws and a locking buckle 61 located below the base plate 6. The locking buckle 61 is clamped on the outside of the right-angle electric screw gun 7. The locking buckle 61 is a two-section structure. One section is fixed on the transmission part of the linear module, and the other section is fixed to the previous section through screws. The two sections increase the friction between the outer wall of the right-angle electric screw gun 7 to achieve the fixed position of the right-angle electric screw gun 7.

[0028] The platform includes a base 1 for support on the outside, a fixed bottom plate 2 is installed on the inner side of the base 1, a cylinder 8 is fixedly connected to the bottom of the bottom plate 2, and the output end of the cylinder 8 is installed with a movable plate 21 located above the bottom plate 2. The platform also includes a gantry 3 installed on the base 1, and the gantry 3 is used to support the linear module. A pneumatic solenoid valve 9 is provided on the outside of the cylinder 8, and the pneumatic solenoid valve 9 is used to realize the telescopic control of the cylinder 8, and then the movable plate 21 is driven to change its position in the Z-axis direction. A control button 10 and an emergency stop button (for unexpected situations, the equipment stops working after being photographed) are provided on the platform. A PLC module 13 for controlling the entire device is provided at the bottom of the bottom plate 2, and the PLC module 13 is provided with a PLC power supply 15 for powering it. The PLC module 13 is used to control the lifting height of the cylinder 8 and the start and stop of the right-angle electric screw gun 7. The specific electrical wiring is as follows Figure 6 、 Figure 7 A 220V plug is also provided at the bottom of the base plate 2.

[0029] The control button 10 cooperates with the PLC module 13 to control the rotation of the right-angle electric screw gun 7 and the extension of the cylinder 8. After the preset time is reached, the cylinder 8 is reset and the right-angle electric screw gun 7 stops rotating.

[0030] The positioning structure includes a base 12 fixed to the movable plate 21 by bolts. A ridge 12 is provided on the base 12. The ridge 12 is set according to the shape of the workpiece to be processed. The base 12 and the ridge 12 are integrally injection molded using a polymer material. The base 12 is fixed above the movable plate 21 by bolts.

[0031] The positioning structure also includes a retaining frame 11 located above the base 12. A limiting piece 1101 is provided on the inner side of the retaining frame 11 for fitting with the ridge 12. A guide block 1102 is also provided on the top of the retaining frame 11 for guiding the right-angle electric screw gun 7. The retaining frame 11 has a C-shaped structure with an open side when viewed from above. The retaining frame 11 is also integrally injection molded using a polymer material. During the processing, the workpiece to be processed is placed on the inner side of the ridge 12 of the base 12, and then the retaining frame 11 is placed above the base 12. Under the joint action of the ridge 12 and the limiting piece 1101, each guide block 1102 is positioned just above the screw to be tightened. The guide block 1102 is a cylindrical structure with an outward chamfer on its top for guiding the right-angle electric screw gun 7 that may have some deviations, thereby ensuring the accuracy of the final docking position between the right-angle electric screw gun 7 and the screw.

[0032] During processing, first select the appropriate combination of linear module 1 4, linear module 2 5, and the number of right-angle electric screw guns 7 according to the number and position of the bolts to be tightened. Figure 1-Figure 5 Taking four rectangularly distributed screws to be tightened as an example, a linear module 1 4 and two linear modules 2 5 are set. Both linear modules 1 4 and linear modules 2 5 are connected to a bidirectional threaded rod. Four electric screw guns are set. The four electric screw guns are arranged at both ends of the two linear modules 2 5. The two linear modules 2 5 are installed at both ends of the linear module 1 4. The linear module 1 4 rotates to drive the two linear modules 2 5 to adjust the position in the X-axis direction. The linear module 2 5 rotates to drive the two electric screw guns to change the position. Finally, each electric screw gun is driven to reach the screw position of the workpiece to be processed; the workpiece to be processed is placed on The inner side of the ridge 12 of the base 12, and then the retaining frame 11 is placed on the outer side of the ridge 12, and the control button 10 is pressed. The cylinder 8 lifts the movable plate 21, and the action end of the right-angle electric screw gun 7 enters the guide block 1102. After alignment, the electric screw gun rotates to complete the tightening of the screw. The rotation time of the right-angle electric screw gun 7 is controlled by PLC to ensure that the screw is tightened in place while avoiding excessive rotation; after the preset time is reached, the right-angle electric screw gun 7 stops and the cylinder 8 resets. At this time, the installation of the circuit breaker is completed, and then the retaining frame 11 is removed, the circuit breaker is taken out, and the next circuit breaker is installed.

[0033] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated flat screw fastening device, comprising a platform for placing parts to be mounted, characterized in that: Linear modules are provided above the platform in the X-axis and Y-axis directions, one of the two linear modules is connected to the other by transmission, and the other is connected to a right-angle electric screw gun (7) below by transmission, and the position of the right-angle electric screw gun (7) is transmitted to the screw hole position of the part to be installed through the linear module; A positioning structure is also provided on the platform, and the positioning structure guides the working end of the right-angle electric screw gun (7) to further accurately position the screws of the parts to be installed.

2. The integrated flat screw fastening device according to claim 1, characterized in that: The right-angle electric screw gun (7) is provided with a fastener on the outside, and the fastener is connected to the linear module transmission part.

3. The integrated flat screw fastening device according to claim 2, characterized in that: The fastener comprises a base plate (6) fixedly connected to the linear module by screws and a locking buckle (61) located below the base plate (6), and the locking buckle (61) is clamped on the outside of the right-angle electric screw gun (7).

4. The integrated flat screw fastening device according to claim 1, characterized in that: The platform comprises a base (1) for supporting the periphery, a fixed base plate (2) is installed on the inner side of the base (1), a cylinder (8) is fixedly connected to the bottom of the base plate (2), and a movable plate (21) located above the base plate (2) is installed at the output end of the cylinder (8). The platform also comprises a gantry (3) installed on the base (1).

5. The integrated flat screw fastening device according to claim 4, characterized in that: The positioning structure comprises a base (12) fixed to the movable plate (21) by bolts, and a ridge (12) is provided on the base (12).

6. The integrated flat screw fastening device according to claim 5, characterized in that: The positioning structure further comprises a retaining frame (11) located above the base (12), a limiting piece (1101) for fitting with the ridge (12) is provided on the inner side of the retaining frame (11), and a guide block (1102) for guiding the right-angle electric screw gun (7) is also provided on the top of the retaining frame (11).

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