Automatic screw locking machine

Abstract

The utility model discloses an automatic screw locking machine, relates to the technical field of automobile part assembly, solves the problem that the assembly efficiency of a circuit board and a shell is low due to the fact that the manual screw locking speed is low, and comprises a product feeding mechanism which comprises a positioning module capable of horizontally moving, and the positioning module comprises a positioning carrier and a pressing assembly; the screw locking mechanism comprises a suction head with a vertically through cavity, a screwdriver head which is connected with the suction head in a vertically penetrating manner and can rotate, and a quick connector which is mounted on the outer side of the suction head and is communicated with the cavity, and the diameter of the cavity is matched with that of a screw; the utility model discloses a screw feeder. The circuit board and the shell are fixed in the cavity on the positioning carrier and then are pressed down and fixed through the pressing assembly, then the screw locking operation can be automatically completed, the situation of omission is not prone to occurring, meanwhile, the assembling quality of products can be guaranteed, the assembling efficiency of the circuit board and the shell is obviously improved, and the production cost of automobile parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly, in particular to an automatic screw locking machine. Background Art

[0002] With the increasing popularity of new energy vehicles, production requirements for various automotive electronic components are becoming increasingly demanding, and production equipment is becoming increasingly automated. New energy vehicles contain a variety of circuit boards. After production, one type of circuit board needs to be assembled with the housing. Traditionally, this process was manually secured to the housing using screws using an electric screwdriver. Manual operation is slow, requiring a significant amount of labor to complete, increasing labor costs and failing to meet the demands of mass production. Furthermore, some circuit boards have numerous screw holes, making manual operation prone to omissions. This can lead to screws being missed in some holes, compromising the stability of the circuit board's mounting. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and to design an automatic screw locking machine to solve the problem of slow manual screw locking speed and thus the assembly efficiency of the circuit board and the housing.

[0004] The technical solution of the present invention to achieve the above-mentioned purpose is an automatic screw locking machine, comprising:

[0005] A product feeding mechanism, the product feeding mechanism comprising a horizontally movable positioning module, the positioning module comprising a positioning carrier for positioning the product and a pressing assembly for pressing the product downward, the positioning carrier having a cavity adapted to the shape of the product;

[0006] A screw locking mechanism, located above the product feeding mechanism and capable of horizontal movement, comprises a suction head having a cavity extending vertically therethrough, a screwdriver bit rotatably connected to the suction head, and a quick connector mounted on the outside of the suction head and communicating with the cavity, wherein the diameter of the cavity matches the diameter of the screw;

[0007] A screw feeder is located on one side of the product feeding mechanism and is used to supply screws to the screw locking mechanism.

[0008] Preferably, the product feeding mechanism also includes a linear module, the positioning module also includes a base plate installed on the linear module, and a carrier fixing plate installed on the base plate, the positioning carrier is fixed on the carrier fixing plate, and the clamping assembly is provided with two, and is diagonally distributed at both ends of the positioning carrier.

[0009] Preferably, the clamping assembly includes a cylinder fixing block, a clamping cylinder vertically fixed on the cylinder fixing block, a connecting rod connected to the output end of the clamping cylinder, a fixing block rotatably connected to the upper end of the connecting rod, and a compression rod fixed to the bottom of the fixing block.

[0010] Preferably, a pressing block is fixedly mounted on the lower end of the pressing rod, and the bottom of the pressing block protrudes downward to form a mold that matches the shape of the product.

[0011] Preferably, the screw locking mechanism also includes a support frame, a horizontally movable module horizontally fixed on the support frame, a lifting module installed on the horizontally movable module, and a material picking module and a screw locking module installed on the lifting module, and the material picking module is located above the screw locking module.

[0012] Preferably, a mounting plate is fixedly mounted on the lifting module, and the material taking module includes a pad fixed on the mounting plate, a mounting bent plate fixedly connected to the bottom of the pad, and the suction head fixed on the mounting bent plate.

[0013] Preferably, the screw locking module includes a slide plate connected to the mounting plate for upward and downward sliding, an adjustment plate fixedly mounted on the slide plate, an electric screwdriver fixing plate fixed to the bottom of the adjustment plate, an electric screwdriver vertically fixed to the electric screwdriver fixing plate, a screwdriver head connected to the output end of the electric screwdriver, an up and down moving cylinder fixed on one side of the mounting plate, and a floating joint connected to the output end of the up and down moving cylinder, and the lower end of the floating joint is connected to a connecting piece fixed to the bottom of the slide plate.

[0014] Preferably, it further comprises a machine platform, on which two product feeding mechanisms are provided, and between which two product feeding mechanisms are provided two screw feeders and two anti-static ion blowers.

[0015] Compared with the prior art, the beneficial effects are:

[0016] In the utility model, the circuit board and the shell are fixed in the cavity on the positioning carrier, and then pressed down and fixed by the clamping assembly to prevent the relative position between the circuit board and the shell from changing. The screw locking mechanism controls the left and right and up and down movement of the screwdriver head. After the suction head sucks the screw, the screwdriver head moves down to contact the screw, and then the screwdriver head rotates to tighten the screw into the screw hole on the circuit board. In this reciprocating manner, the assembly of the circuit board and the shell can be completed quickly, and omissions are not likely to occur. At the same time, the assembly quality of the product can also be guaranteed, the assembly efficiency of the circuit board and the shell is significantly improved, and the production cost of automobile parts is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the automatic screw locking machine of the utility model;

[0018] Figure 2It is a structural diagram of the product feeding mechanism in the automatic screw locking machine;

[0019] Figure 3 It is a structural diagram of the positioning module in the product feeding mechanism;

[0020] Figure 4 It is a structural diagram of the clamping component in the positioning module;

[0021] Figure 5 It is a structural diagram of the screw locking mechanism in the automatic screw locking machine;

[0022] Figure 6 It is a structural diagram of the material taking module and the screw locking module in the screw locking mechanism;

[0023] Figure 7 yes Figure 6 A structural diagram from another perspective;

[0024] Figure 8 It is a schematic diagram of the result when the screwdriver head and the suction head are matched.

[0025] In the figure, 1. Product feeding mechanism; 11. Linear module; 12. Positioning module; 121. Bottom plate; 122. Carrier fixing plate; 123. Positioning carrier; 124. Pressing assembly; 1241. Cylinder fixing block; 1242. Pressing cylinder; 1243. Connecting rod; 1244. Fixing block; 1245. Pressing rod; 1246. Pressing block; 2. Locking screw mechanism; 21. Support frame; 22. Horizontal moving module; 23. Lifting module 1. Material picking module; 241. Spacer; 242. Mounting bend plate; 243. Suction head; 244. Quick connector; 25. Screw locking module; 251. Slide plate; 252. Adjustment plate; 253. Electric screwdriver fixing plate; 254. Electric screwdriver; 255. Screwdriver head; 256. Up and down moving cylinder; 257. Floating joint; 258. Buffer spring; 26. Mounting plate; 3. Screw feeder; 4. Anti-static ion blower; 5. Machine. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1As shown, a preferred embodiment of the present invention provides an automatic screw locking machine, which mainly includes a machine platform 5, two product feeding mechanisms 1, two screw feeders 3, two anti-static ion blowers 4, and a screw locking mechanism 2 mounted on the machine platform 5. The two screw feeders 3 and the two anti-static ion blowers 4 are located between the two product feeding mechanisms 1 and correspond to the two product feeding mechanisms 1 respectively. The screw locking mechanism 2 spans above the two product feeding mechanisms 1, and the screw feeder 3 is used to feed the screw locking mechanism 2 with screws. The anti-static ion blower 4 can remove static electricity, preventing damage to the circuit board caused by static electricity generated during screw locking.

[0028] In this embodiment, the main structures of the two product feeding mechanisms 1 are the same, and they are respectively used to position circuit boards of two different sizes.

[0029] like Figure 2-Figure 4 As shown, the product feeding mechanism 1 is mainly composed of a linear module 11 and a positioning module 12. The positioning module 12 is composed of a base plate 121, a carrier fixing plate 122, a positioning carrier 123, and a clamping assembly 124. The linear module 11 is horizontally fixed on the machine table 5, and the base plate 121 is fixedly mounted on the linear module 11. The linear module 11 controls the linear movement of the base plate 121. The carrier fixing plate 122 is fixed to the base plate 121 by screws, and the positioning carrier 123 is fixed to the carrier fixing plate 122 by screws. There are two clamping assemblies 124, which are distributed at diagonal positions of the positioning carrier 123. After the positioning carrier 123 positions the circuit board and the housing, the clamping assembly 124 presses the circuit board and the housing diagonally.

[0030] refer to Figure 4 The clamping assembly 124 is composed of a cylinder fixing plate 1241, a clamping cylinder 1242, a connecting rod 1243, a fixing block 1244, a pressing rod 1245 and a pressing block 1246, wherein a groove that can accommodate the cylinder fixing plate 1241 is provided on both sides of the carrier fixing plate 122, and the cylinder fixing plate 1241 is fixed in the groove by screws. The clamping cylinder 1242 is vertically fixed on the cylinder fixing plate 1241, and the output end of the clamping cylinder 1242 faces upward and is connected to the connecting rod 1243. The fixing block 1244 is rotatably connected to the upper end of the connecting rod 1243, but the fixing block 1244 cannot move along the axial direction of the connecting rod 1243. The pressing rod 1245 is fixed to the other end of the fixing block 1244, and the lower end of the pressing rod 1245 is fixedly connected to the pressing block 1246.

[0031] Positioning carrier 123 has a cavity shaped to match the circuit board and housing. The circuit board is stacked on top of the housing. After the housing and circuit board are sequentially placed into the cavity, fixed block 1244 is rotated to move pressure block 1246 over the circuit board. Then, compression cylinder 1242 controls the downward movement of pressure block 1246. The downwardly protruding bottom of pressure block 1246 forms a mold that fits the circuit board and housing, pressing them together and completing their positioning. Linear module 11 then controls positioning module 12 to move below screw locking mechanism 2.

[0032] like Figure 5-Figure 7 As shown, the screw locking mechanism 2 is composed of a support frame 21, a horizontally movable module 22, a lifting module 23, a material picking module 24, and a screw locking module 25. The support frame 21 is fixedly mounted on the machine platform 5, the horizontally movable module 22 is horizontally fixed to the support frame 21, and the lifting module 23 is mounted on the horizontally movable module 22. A mounting plate 26 is mounted on the lifting module 23, and the material picking module 24 and the screw locking module 25 are both mounted on the mounting plate 26. The horizontally movable module 22 and the lifting module 23 are driven by servo motors to control the left and right and up and down movements of the material picking module 24 and the screw locking module 25.

[0033] refer to Figure 6 The material extraction module 24 consists of a pad 241, a mounting bent plate 242, a suction head 243, and a quick connector 244. The pad 241 is fixed to the lower side of the mounting plate 26. The mounting bent plate 242 is shaped like a Z and extends obliquely downward. The suction head 243 is fixed vertically to the lower end of the mounting bent plate 242. Inside the suction head 243, there is a cavity that runs vertically through it. The diameter of this cavity is adapted to the diameter of the screw and is slightly larger than the diameter of the screw. On the outside of the suction head 243, there are two quick connectors 244. The quick connectors 244 are connected to the cavity inside the suction head 243 and are used to connect to the exhaust mechanism.

[0034] The screw locking module 25 is composed of a slide plate 251, an adjustment plate 252, an electric screwdriver fixing plate 253, an electric screwdriver 254, a screwdriver head 255, and an up and down moving cylinder 256. The slide plate 251 is connected to a slide rail fixed on the mounting plate 26 for up and down sliding. There is a sheet metal part on the top of the mounting plate 26, and the up and down moving cylinder 256 is vertically fixed on the sheet metal part. The output end of the up and down moving cylinder 256 is fixedly connected to a floating joint 257. The lower end of the floating joint 257 is clamped with a connecting piece fixed to the bottom of the slide plate 251, and the up and down movement of the slide plate 251 is controlled by the up and down moving cylinder 256.

[0035] A buffer spring 258 is provided on the floating joint 257. The upper and lower ends of the spring abut against the pressure piece fixed on the floating joint 257. The floating joint 257 can move up and down relative to the connecting part. When the screwdriver bit 255 moves down to tighten the screw, the buffer spring 258 can play a buffering role to prevent the screwdriver bit 255 from damaging the circuit board.

[0036] Adjustment plate 252 is fixed to slide plate 251 via screws. Adjustment plate 252 has a vertically extending strip hole, which allows adjustment of the vertical position of adjustment plate 252. An electric screwdriver fixing plate 253 is also fixed to adjustment plate 252 via screws. An electric screwdriver 254 is vertically fixed to electric screwdriver fixing plate 253. A screwdriver bit 255 is located at the lower end of electric screwdriver 254, and its rotation is controlled by electric screwdriver 254.

[0037] refer to Figure 8 The screwdriver bit 255 is thick at one end and thin at the other end. The diameter of the thicker end of the screwdriver bit 255 matches the diameter of the cavity inside the suction head 243, and the screwdriver bit 255 is connected to the cavity in an up-and-down sliding manner.

[0038] When the bit 255 is inserted into the cavity inside the suction head 243, the upper end of the cavity is blocked. At this time, air is pumped outward through the quick connector 244, and negative pressure is generated at the lower end of the suction head 243. The screw feeder 3 provides screws, and the suction head 243 sucks the screws. There is a certain gap between the thicker end of the bit 255 and the inner wall of the suction head 243, which does not hinder the quick connector 244 from pumping air outward.

[0039] After the suction head 243 has sucked up the screw, it is moved by the horizontal movement module 22 to directly above the screw hole on the circuit board on the positioning carrier 123. The lifting module 23 then controls the screw locking module 25 to move downward. The vertical movement cylinder 256 controls the screwdriver bit 255 to move downward. The lower end of the screwdriver bit 255 contacts the screw at the lower end of the suction head 243. The electric screwdriver 254 then controls the screwdriver bit 255 to rotate and tighten the screw into the circuit board. This reciprocating process tightens the screws one by one into the screw holes on the circuit board, thus completing the fixation between the circuit board and the housing. The relative position between the screw holes on the circuit board and the screwdriver bit 255 can be precisely controlled.

[0040] After the circuit board and housing are locked and fixed, the linear module 11 controls the movement to eject the product and then load it. Another product feeding mechanism 1 is used to position large circuit boards and housings. The screw locking module 25 can be switched back and forth between the two product feeding mechanisms 1 via the horizontal moving module 22, so that screw locking operations can be performed on different products, while also improving production efficiency.

[0041] The above technical solutions only reflect the preferred technical solutions of the present utility model. Any changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the scope of protection of the present utility model.

Claims

1. An automatic screw locking machine, characterized in that: include: A product feeding mechanism (1), the product feeding mechanism (1) comprising a horizontally movable positioning module (12), the positioning module (12) comprising a positioning carrier (123) for positioning the product and a pressing assembly (124) for pressing the product downward, the positioning carrier (123) having a cavity adapted to the shape of the product; A screw locking mechanism (2) is located above the product feeding mechanism (1) and is capable of horizontal movement. The screw locking mechanism (2) comprises a suction head (243) having a cavity extending vertically therethrough, a screwdriver bit (255) vertically interlaced with the suction head (243) and capable of rotation, and a quick connector (244) mounted on the outside of the suction head (243) and communicating with the cavity. The diameter of the cavity is adapted to the diameter of the screw. A screw feeder (3) is located on one side of the product feeding mechanism (1) and is used to supply screws to the screw locking mechanism (2).

2. The automatic screw locking machine according to claim 1, characterized in that: The product feeding mechanism (1) further comprises a linear module (11), the positioning module (12) further comprises a base plate (121) mounted on the linear module (11), and a carrier fixing plate (122) mounted on the base plate (121), the positioning carrier (123) is fixed on the carrier fixing plate (122), and two pressing assemblies (124) are provided and diagonally distributed at both ends of the positioning carrier (123).

3. The automatic screw locking machine according to claim 2, characterized in that: The pressing assembly (124) comprises a cylinder fixing plate (1241), a pressing cylinder (1242) vertically fixed on the cylinder fixing plate (1241), a connecting rod (1243) connected to the output end of the pressing cylinder (1242), a fixing block (1244) rotatably connected to the upper end of the connecting rod (1243), and a pressing rod (1245) fixed to the bottom of the fixing block (1244).

4. The automatic screw locking machine according to claim 3, characterized in that: A pressing block (1246) is fixedly mounted on the lower end of the pressing rod (1245), and the bottom of the pressing block (1246) is convex downward to form a mold that matches the shape of the product.

5. The automatic screw locking machine according to claim 1, characterized in that: The screw locking mechanism (2) further comprises a support frame (21), a horizontally movable module (22) horizontally fixed on the support frame (21), a lifting module (23) mounted on the horizontally movable module (22), and a material taking module (24) and a screw locking module (25) mounted on the lifting module (23), wherein the material taking module (24) is located above the screw locking module (25).

6. The automatic screw locking machine according to claim 5, characterized in that: A mounting plate (26) is fixedly mounted on the lifting module (23), and the material taking module (24) comprises a cushion block (241) fixed on the mounting plate (26), a mounting bent plate (242) fixedly connected to the bottom of the cushion block (241), and the suction head (243) fixed on the mounting bent plate (242).

7. The automatic screw locking machine according to claim 6, characterized in that: The screw locking module (25) comprises a slide plate (251) connected to the mounting plate (26) for vertical sliding, an adjustment plate (252) fixedly mounted on the slide plate (251), an electric screwdriver fixing plate (253) fixed at the bottom of the adjustment plate (252), an electric screwdriver (254) vertically fixed on the electric screwdriver fixing plate (253), a screwdriver head (255) connected to the output end of the electric screwdriver (254), an up-and-down moving cylinder (256) fixed on one side of the mounting plate (26), and a floating joint (257) connected to the output end of the up-and-down moving cylinder (256), wherein the lower end of the floating joint (257) is connected to a connecting piece fixed at the bottom of the slide plate (251).

8. The automatic screw locking machine according to claim 1, characterized in that: It also includes a machine platform (5), on which two product feeding mechanisms (1) are arranged, and between the two product feeding mechanisms (1) are two screw feeders (3) and two anti-static ion blowers (4).

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