Screw locking machine for electric control box

Abstract

The utility model discloses an electric control box screw locking machine which comprises a machine table, a positioning jig used for placing a product is arranged on the machine table, a screw locking mechanism is arranged above the positioning jig, and a screw feeding box is further arranged on the machine table. The screw locking mechanism comprises a first vertical rod, a first connecting section, a second connecting section, a third connecting section and a fourth connecting section, one end of the first connecting section is rotatably and slidably connected with the first vertical rod, the first connecting section is rotatably connected with the second connecting section, the second connecting section is connected with the third connecting section, and the fourth connecting section is connected with the third connecting section. The third connecting section is vertically and rotatably connected with the screw gun mounting plate; a first position encoder is arranged at the top of the first vertical rod, a second position encoder is arranged at the top of the first rotating piece, a third position encoder is arranged at the top of the third connecting section, the structure can achieve positioning of the screw locking position, and then the torque value of the screw gun for locking screws at all the positions is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of screw fastening machines, and in particular to a screw fastening machine for an electrical control box. Background Technology

[0002] The production process of new energy electrical control boxes involves key steps such as assembly, screw tightening, and aging. When tightening screws, multiple screws are required to secure the control box, and each screw has a different tightening position; therefore, the applied torque must be adjusted accordingly. Excessive torque may damage the product, while insufficient torque may result in loose screws. Currently, the torque during screw tightening is mainly controlled manually, which makes it impossible to ensure the accuracy of tightening each screw. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an electronically controlled screw fastening machine that ensures the accuracy of each screw during the tightening process.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an electric control box screw fastening machine, including a machine base, a positioning fixture for placing products is provided on the machine base, a screw fastening mechanism is provided above the positioning fixture, and a screw feeding box is also provided on the machine base;

[0005] The screw-locking mechanism includes a first vertical rod, a first connecting section, a second connecting section, a third connecting section, and a fourth connecting section. One end of the first connecting section is rotatably and slidably connected to the first vertical rod. The other end of the first connecting section is horizontally rotatably connected to one end of the second connecting section via a first rotating component. The other end of the second connecting section is connected to the third connecting section. The bottom of the third connecting section is vertically rotatably connected to a screw gun mounting plate via a second rotating component. A screw gun is mounted on the screw gun mounting plate.

[0006] The first vertical rod is provided with a first position encoder at its top, the first rotating part is provided with a second position encoder at its top, and the third connecting section is provided with a third position encoder at its top. It also includes a control module that is connected to the first position encoder, the second position encoder, the third position encoder and the screw gun. The control module is used to provide torque values ​​for each screw position.

[0007] Furthermore, a barcode scanner is also installed on one side of the machine, and the barcode scanner is connected to the control module via a signal.

[0008] Furthermore, the positioning fixture includes a base plate, which is detachably connected to the machine base, and the base plate is provided with a plurality of positioning pins and positioning blocks for positioning the product.

[0009] Furthermore, a hoist is installed at the top of the first vertical rod, and the connecting end of the hoist is connected to the first connecting section;

[0010] The first rotating component includes a first rotating cylinder connected to the second connecting section. The first rotating cylinder has a first rotating rod at both ends that is rotatably connected to the rotating mounting block. The rotating mounting block is detachably connected to the first connecting section. A limit button is provided on the side wall of the first rotating cylinder. When the second connecting section rotates to a certain angle relative to the first connecting section, the limit button abuts against the first connecting section.

[0011] The second rotating component includes a connecting seat fixedly connected to the screw gun mounting plate. The connecting seat is provided with a first mounting block and a second mounting block. The bottom ends of the third connecting section are provided with second rotating rods that extend into the first mounting block and the second mounting block, respectively. The upper end of the first mounting block is provided with an arc-shaped notch. The connecting seat is provided with a locking component that can extend into the arc-shaped notch, so that the screw gun can move within a 90-degree angle range formed by the horizontal and vertical directions.

[0012] Furthermore, an electrostatic eliminator is installed inside the rack, and a shadowless lamp is installed at the top inside the rack.

[0013] The beneficial effects of this utility model are:

[0014] 1. In this structure, the positioning of the screw can be achieved by setting the first position encoder, the second position encoder and the third position encoder. Then, the torque value of the screw at the current position can be sent to the screw gun through the control module, thereby ensuring the torque value of the screw gun in each position.

[0015] 2. The barcode scanner in this structure allows for the selection of the torque formula for this screw fastening machine, enabling it to be used for screw fastening on different products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an electronically controlled box lock according to an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the screw-locking mechanism of an electrical control box screw-locking machine according to an embodiment of this application.

[0018] Figure 3 For this Figure 2 Enlarged view of the structure at point A in the middle.

[0019] The components in the diagram are labeled as follows: 1. Machine base; 2. Positioning fixture; 21. Positioning pin; 3. Screw locking mechanism; 31. First vertical rod; 32. First connecting section; 33. Second connecting section; 34. Third connecting section; 35. Fourth connecting section; 36. First rotating component; 37. First position encoder; 38. Second position encoder; 39. Third position encoder; 310. Hoist; 311. Limiting device; 312. Arc-shaped notch; 313. Locking component; 314. Connecting seat; 4. Screw feed box; 5. Screw gun; 6. Barcode scanner; 7. Static eliminator; 8. Shadowless lamp. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] An embodiment of this application discloses an electrical control box screw fastening machine, including a machine base 1, a positioning fixture 2 for placing products is provided on the machine base 1, a screw fastening mechanism 3 is provided above the positioning fixture 2, and a screw feeding box 4 is also provided on the machine base 1.

[0022] The screw-locking mechanism 3 includes a first vertical rod 31, a first connecting section 32, a second connecting section 33, a third connecting section 34, and a fourth connecting section 35. One end of the first connecting section 32 is rotatably and slidably connected to the first vertical rod 31. The other end of the first connecting section 32 is horizontally rotatably connected to one end of the second connecting section 33 via a first rotating member 36. The other end of the second connecting section 33 is connected to the third connecting section 34. The bottom of the third connecting section 34 is vertically rotatably connected to the screw gun 5 mounting plate via a second rotating member. A screw gun 5 is mounted on the screw gun 5 mounting plate.

[0023] The first vertical rod 31 is provided with a first position encoder 37 at its top, the first rotating part 36 is provided with a second position encoder 38 at its top, and the third connecting section 34 is provided with a third position encoder 39 at its top. It also includes a control module that is signal-connected to the first position encoder 37, the second position encoder 38, the third position encoder 39 and the screw gun 5. The control module is used to provide torque values ​​for each screw-locking position.

[0024] It should be explained that using a position encoder to locate a position is an existing operation, and will not be elaborated on here.

[0025] Specifically, during operation, the product is first placed into the product positioning fixture 2 and assembled. Then, the screwdriver 5 is used to move to each screw position on the product for screw tightening. During the screw tightening operation, the first position encoder 37, the second position encoder 38, and the third position encoder 39 work together to send the screw position to the control module. The control module retrieves the required screw tightening torque for the current position based on its internal records and sends this torque data to the screwdriver 5. The screwdriver 5 uses the set torque to tighten the screw. If the torque is too high or does not reach the set torque value, an error is reported, and the screw needs to be replaced and retightened.

[0026] In this structure, the first position encoder 37, the second position encoder 38, and the third position encoder 39 can be used to locate the screw position. This allows the control module to send the torque value of the screw at the current position to the screw gun 5, thereby ensuring that the screw gun 5 has the correct torque value for screwing at each position. At the same time, the first vertical rod 31, the first connecting section 32, the second connecting section 33, the third connecting section 34, and the fourth connecting section 35 in this structure make the movement of the screw gun 5 smoother and able to reach each screw position.

[0027] In this embodiment, a barcode scanner 6 is also provided on one side of the machine 1, and the barcode scanner 6 is connected to the control module via signal.

[0028] In practice, a QR code corresponding to the product will be attached to the product. By scanning the QR code on the product with a barcode scanner, you can obtain the screw fastening formula for that product, that is, the different torque values ​​required for different positions, so as to realize the screw fastening operation with different torque values ​​in different positions.

[0029] The structure allows for the use of barcode scanner 6 to retrieve the torque formula for this screw fastening machine, enabling it to be used for screw fastening on different products.

[0030] In this embodiment, the positioning fixture 2 includes a base plate, which is detachably connected to the machine base 1. The base plate is provided with a plurality of positioning pins 21 and positioning blocks for positioning the product.

[0031] In actual operation, the product is placed on the fixture. Since the fixture is equipped with positioning pins 21 and positioning blocks, the product can be positioned and installed in accordance with the fixture, thereby ensuring the accuracy of subsequent screw tightening operations.

[0032] In this embodiment, a hoisting hoist 310 is installed at the top of the first vertical rod 31, and the connecting end of the hoisting hoist 310 is connected to the first connecting section 32;

[0033] The first rotating component 36 includes a first rotating cylinder connected to the second connecting section 33. The first rotating cylinder has a first rotating rod at both ends that is rotatably connected to the rotating mounting block. The rotating mounting block is detachably connected to the first connecting section 32. A limit block 311 is provided on the side wall of the first rotating cylinder. When the second connecting section 33 rotates relative to the first connecting section 32 to a certain angle, the limit block 311 abuts against the first connecting section 32.

[0034] The second rotating component includes a connecting seat 314 fixedly connected to the mounting plate of the screw gun 5. The connecting seat 314 is provided with a first mounting block and a second mounting block. The bottom ends of the third connecting section 34 are provided with second rotating rods that extend into the first mounting block and the second mounting block respectively. The upper end of the first mounting block is provided with an arc-shaped notch 312. The connecting seat 314 is provided with a locking member 313 that can extend into the arc-shaped notch 312, so that the screw gun 5 can move within a 90-degree angle range formed by the horizontal and vertical directions.

[0035] Specifically, the hoist 310 allows the first connecting section 32 to rise and fall relative to the first vertical rod 31 and hover at any height. Simultaneously, the first connecting section 32 and the second connecting section 33 can rotate horizontally relative to each other, and the third connecting section 34 and the screw gun 5 mounting plate can rotate vertically relative to each other. This allows the screw gun 5 to move to any position in three-dimensional space, facilitating screw tightening operations at various locations on the product. Furthermore, the structure incorporates a limiting block. When the second connecting section 33 rotates relative to the first connecting section 32 to a certain angle, the limiting block 311 abuts against the first connecting section 32, thus limiting the horizontal rotation angle between the first and second connecting sections 32 and 33. Additionally, the use of the arc-shaped notch 312 on the first mounting block and the locking element 313 limits the vertical rotation angle between the third connecting section 34 and the screw gun 5 mounting plate. This limiting configuration allows operators to easily control the screw gun 5 within the required range of motion.

[0036] In this embodiment, an electrostatic eliminator 7 is also provided on the inner side of the frame, and a shadowless lamp 8 is provided on the top of the inner side of the frame.

[0037] In this structure, the static eliminator 7 can achieve the function of eliminating static electricity and prevent the generated static electricity from damaging the product. At the same time, the shadowless lamp 8 can reduce the interference of shadows when screwing while providing illumination.

[0038] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrically controlled box lock screwing machine, characterized by: Including machine table (1), the machine table (1) is provided with positioning jig (2) for placing product, the positioning jig (2) is provided with screw locking mechanism (3) above, the machine table (1) is further provided with screw supply box (4); The screw locking mechanism (3) includes first vertical rod (31), first connecting section (32), second connecting section (33), third connecting section (34) and fourth connecting section (35), one end of the first connecting section (32) is rotatably and slidably connected with the first vertical rod (31), the other end of the first connecting section (32) is horizontally rotatably connected with one end of the second connecting section (33) through the first rotating part (36), the other end of the second connecting section (33) is connected with the third connecting section (34), the bottom of the third connecting section (34) is vertically rotatably connected with the screw gun (5) mounting plate through the second rotating part, and the screw gun (5) mounting plate is provided with the screw gun (5). The top of the first vertical rod (31) is provided with a first position encoder (37), the top of the first rotating part (36) is provided with a second position encoder (38), and the top of the third connecting section (34) is provided with a third position encoder (39), and a control module is further connected with the first position encoder (37), the second position encoder (38), the third position encoder (39) and the screw gun (5) in signal connection, and the control module is used for providing the torque value of each screw locking position.

2. An electrically controlled box lock screwing machine according to claim 1, characterized in that: The machine table (1) is further provided with a code scanning gun (6) on one side, and the code scanning gun (6) is connected with the control module in signal connection.

3. An electrically controlled box lock screw machine as claimed in claim 1, wherein: The positioning jig (2) includes a bottom plate, the bottom plate is detachably connected with the machine table (1), and a plurality of positioning pins (21) and positioning blocks for positioning the product are arranged on the bottom plate.

4. The electrically controlled box lock screw machine of claim 1, wherein: The top of the first vertical rod (31) is provided with a lifting hoist (310), and the connecting end of the lifting hoist (310) is connected with the first connecting section (32). The first rotating part (36) includes a first rotating cylinder connected with the second connecting section (33), first rotating rods rotatably connected with rotating mounting blocks are arranged at both ends of the first rotating cylinder, the rotating mounting blocks are detachably connected with the first connecting section (32), limiting blocks (311) are arranged on the side wall of the first rotating cylinder, and when the second connecting section (33) is rotated to a certain angle relative to the first connecting section (32), the limiting blocks (311) abut against the first connecting section (32). The second rotating part includes a connecting seat (314) fixedly connected with the screw gun (5) mounting plate, the connecting seat (314) is provided with a first mounting block and a second mounting block, second rotating rods are arranged at both sides of the bottom end of the third connecting section (34) and extend into the first mounting block and the second mounting block respectively, an arc-shaped notch (312) is arranged on one side of the upper end of the first mounting block, a locking part (313) is arranged on one side of the connecting seat (314) and can extend into the arc-shaped notch (312), so that the screw gun (5) can move within the range of 90 degrees formed by the horizontal and vertical.

5. An electrically controlled box lock screw machine as claimed in claim 1, wherein: The machine table (1) is provided with an electrostatic eliminator (7) on the inner side, and a shadowless lamp (8) on the top of the inner side.

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