An automatic installation mechanism for automobile accessory screws

Abstract

The utility model discloses an automatic installation mechanism of automobile parts screw, including frame, the top of frame is connected with the frame and is equipped with X axis servo screw rod linear module, and the X axis of X axis servo screw rod linear module moves the slide table and is connected with Z axis servo screw rod linear module, and the Z axis of Z axis servo screw rod linear module moves the slide table and is connected with the electric wrench, and the electric wrench bottom is installed with the electric wrench head, and the screw locking head is fixed in the electric wrench head through the fixed component, and the fixed component is constituted by arc clamping block and spring, when needing to replace screw locking head, only need to exert certain external force to overcome the spring elasticity, make arc clamping block separate from the clamping slot of screw locking head, can conveniently and quickly dismantle the original locking head down, and install the new locking head of adapting different types screw, greatly improved the flexibility and versatility of mechanism in a variety of installation tasks, no longer stop because of screw type mismatch, ensure the continuity of production.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts processing technology, specifically relating to an automatic screw installation mechanism for automotive parts. Background Technology

[0002] In the production of automotive parts, screw installation is an extremely important and frequent operation. With the rapid development of the automotive industry, the requirements for production efficiency and assembly precision are constantly increasing. The traditional manual screw installation method has gradually exposed many drawbacks such as low efficiency, high labor intensity and unstable installation quality, which can no longer meet the needs of modern large-scale production. Against this background, automatic screw installation machines for automotive parts have emerged, which greatly improve installation efficiency.

[0003] While existing automatic screw installation machines improve the efficiency and stability of screw installation to some extent, quickly and accurately installing screws to the corresponding automotive parts through automated operation, they have a significant limitation: the screw locking heads cannot be replaced. In actual automotive production scenarios, there are many types of automotive parts, and different parts use different types of screws, such as Phillips head screws, slotted head screws, and hex head screws. For different types of screws, appropriate locking heads are required, such as Phillips head locking heads for Phillips head screws, slotted head locking heads for slotted head screws, and hex head locking heads for hex head screws, to ensure smooth screw installation and reliable installation quality. Because the screw locking heads of existing mechanisms cannot be replaced, they lack sufficient flexibility and versatility when dealing with the installation of various types of screws. Once a screw that does not match the existing locking head is encountered, the mechanism cannot work properly and must be stopped. The entire locking device must be replaced manually or other temporary methods must be used to deal with the problem, which seriously affects production efficiency and increases downtime and labor costs during the production process. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic screw installation mechanism for automotive parts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic screw installation mechanism for automotive parts, comprising:

[0006] The machine base has a frame connected to its top, and an X-axis servo lead screw linear module is installed inside the top of the frame. A Z-axis servo lead screw linear module is connected to the X-axis moving slide of the X-axis servo lead screw linear module. An electric screwdriver is connected to the Z-axis moving slide of the Z-axis servo lead screw linear module. An electric screwdriver bit is installed at the bottom of the electric screwdriver. A screw locking head is fixed inside the electric screwdriver bit by a fixing component. The fixing component includes an arc-shaped locking block and a spring. There are two sets of arc-shaped locking blocks, both of which are slidably connected inside the electric screwdriver bit. The spring force pushes the arc-shaped locking block to engage with the slot inside the screw locking head, so that the screw locking head is fixed inside the bottom of the electric screwdriver bit.

[0007] Preferably, the screw locking head is an internal hexagon locking head, the top of the screw locking head is connected to a cross-shaped fixing plug, the electric screwdriver bit is provided with a cross-shaped fixing slot, and the cross-shaped fixing slot is provided with sliding grooves on both sides.

[0008] Preferably, the arc-shaped locking block is slidably connected in the sliding groove, and the spring is provided in two sets and is respectively disposed in the two sets of sliding grooves. The two ends of the spring are respectively connected to the arc-shaped locking block and the electric screwdriver bit.

[0009] Preferably, the card slots are provided in two sets and are respectively located in the cross-shaped fixing plug. After the cross-shaped fixing plug is inserted into the cross-shaped fixing slot, the arc-shaped card block cooperates with the card slot to engage.

[0010] Preferably, the top of the machine base is provided with two sets of processing tables, and each set of processing tables is provided with a Y-axis servo lead screw linear module. A movable seat is connected to the Y-axis moving slide of the Y-axis servo lead screw linear module.

[0011] Preferably, the movable seat is equipped with two sets of electric cylinders, and the push rod of the electric cylinder is connected to a clamping block and the clamping block is connected to a protective pad.

[0012] Preferably, the base is provided with a control box.

[0013] Preferably, the bottom of the base is rotatably connected to several casters.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The fixing component consists of an arc-shaped locking block and a spring. When the screw locking head needs to be replaced, only a certain external force needs to be applied to overcome the spring force so that the arc-shaped locking block can be disengaged from the slot of the screw locking head. The original locking head can be easily and quickly removed and a new locking head that is compatible with different types of screws can be installed. This greatly improves the flexibility and versatility of the mechanism in various installation tasks, and the machine will no longer have to stop due to mismatched screw types, thus ensuring the continuity of production.

[0016] (2) The mechanism adopts X-axis, Z-axis and Y-axis servo lead screw linear modules and electric cylinders and other automated components, which can realize fast and accurate screw installation operations. Compared with the traditional manual installation method, it significantly improves the efficiency of screw installation, thereby improving the efficiency of the entire automotive parts production and meeting the efficiency requirements of modern large-scale production.

[0017] (3) Several casters are rotatably connected to the bottom of the base, which makes the entire automatic installation mechanism easy to move. The equipment position can be flexibly adjusted according to the layout of the production workshop and production needs, which facilitates the installation, debugging and maintenance of the equipment. In addition, the control box set on the base integrates the control function of the equipment. Operators can conveniently operate the equipment and set parameters through the control box, which improves the ease of operation and intelligence of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the electric screwdriver bit and screw locking head of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-shaped fixing slot and the cross-shaped fixing plug of this utility model;

[0022] Figure 5 This is a schematic diagram of the screw locking head of this utility model.

[0023] In the diagram: 1. Base; 2. Frame; 3. X-axis servo lead screw linear module; 4. Z-axis servo lead screw linear module; 5. Electric screwdriver; 6. Electric screwdriver bit; 7. Screw locking head; 8. Arc-shaped locking block; 9. Spring; 10. Slot; 11. Cross-shaped fixing plug; 12. Cross-shaped fixing slot; 13. Machining table; 14. Y-axis servo lead screw linear module; 15. Electric cylinder; 16. Clamping block; 17. Control box; 18. Casters; 19. Moving base. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] This utility model provides, for example Figure 1-5 The illustrated automatic screw installation mechanism for automotive parts includes:

[0027] A base 1 is provided, with a frame 2 connected to the top of the base 1. An X-axis servo lead screw linear module 3 is provided inside the top of the frame 2. A Z-axis servo lead screw linear module 4 is connected to the X-axis moving slide of the X-axis servo lead screw linear module 3. An electric screwdriver 5 is connected to the Z-axis moving slide of the Z-axis servo lead screw linear module 4. An electric screwdriver bit 6 is installed at the bottom of the electric screwdriver 5. A screw locking head 7 is fixed inside the electric screwdriver bit 6 by a fixing component. The fixing component includes an arc-shaped locking block 8 and a spring 9. Two sets of arc-shaped locking blocks 8 are provided and are slidably connected inside the electric screwdriver bit 6. The spring force of the spring 9 pushes the arc-shaped locking blocks 8 to engage with the slot 10 inside the screw locking head 7, so that the screw locking head 7 is fixed inside the bottom of the electric screwdriver bit 6.

[0028] The screw locking head 7 is an internal hexagon locking head. The top of the screw locking head 7 is connected to a cross-shaped fixing plug 11. The electric screwdriver bit 6 is provided with a cross-shaped fixing slot 12. The cross-shaped fixing slot 12 is provided with sliding grooves on both sides.

[0029] The arc-shaped locking block 8 is slidably connected in the sliding groove, and the spring 9 is provided in two sets and is respectively located in the two sets of sliding grooves. The two ends of the spring 9 are respectively connected to the arc-shaped locking block 8 and the electric screwdriver bit 6.

[0030] The slot 10 has two sets, which are respectively located in the cross-shaped fixing plug 11. After the cross-shaped fixing plug 11 is inserted into the cross-shaped fixing slot 12, the arc-shaped locking block 8 cooperates with the slot 10 to engage. The cross-shaped fixing plug 11 and the cross-shaped fixing slot 12 form a mechanical limit in an orthogonal direction, which can prevent the screw locking head 7 from translating or rotating in the horizontal direction.

[0031] The machine base 1 has two sets of processing tables 13 on its top, and each set of processing tables 13 is equipped with a Y-axis servo lead screw linear module 14. A movable seat 19 is connected to the Y-axis moving slide of the Y-axis servo lead screw linear module 14.

[0032] The movable seat 19 is equipped with two sets of electric cylinders 15. The push rod of the electric cylinder 15 is connected to a clamping block 16, and a protective pad is connected to the clamping block 16. The protective pad is made of rubber to avoid damage when clamping the car parts.

[0033] The base 1 is equipped with a control box 17. The operator controls and operates the entire automatic installation mechanism through the control box 17 on the base 1. The control box 17 integrates an advanced PLC control system and a touch screen human-machine interface. The operator can set various parameters on the touch screen, such as the motion parameters of the X-axis, Z-axis and Y-axis servo lead screw linear module 14, the torque and speed of the electric screwdriver 5, and the extension and retraction stroke of the electric cylinder 15, to adapt to the installation requirements of different automotive parts and screws.

[0034] The base 1 is rotatably connected to several casters 18. The casters 18 make the entire automatic installation mechanism easy to move and can flexibly adjust the equipment position according to the layout of the production workshop and production needs.

[0035] This automatic screw installation mechanism for automotive parts achieves precise three-dimensional motion control by relying on X-axis, Z-axis, and Y-axis servo lead screw linear modules 14. The frame 2 connected to the top of the base 1 is equipped with an X-axis servo lead screw linear module 3. Its servo motor receives pulse signals from the control box 17 and converts the rotational motion into linear motion through the lead screw and nut pair, driving the Z-axis servo lead screw linear module 4 connected to the X-axis moving slide to move in the horizontal direction (X-axis direction). The Z-axis servo lead screw linear module 4 uses the same principle to move the electric screwdriver 5 connected to the Z-axis moving slide in the vertical direction (Z-axis direction), thereby achieving precise position adjustment of the electric screwdriver 5 in space to align with the installation position of the screw on the automotive part.

[0036] The Y-axis servo lead screw linear modules 14, which are set on the two sets of processing tables 13 at the top of the base 1, have the same motion control logic as the previous two. They drive the moving seat 19 connected to the Y-axis moving slide to move in another horizontal direction (Y-axis direction). During this process, the position sensors (not shown in the figure) installed on each linear module feed back the current position information to the control box 17 in real time. The control box 17 adjusts the speed and direction of the servo motor in real time according to the deviation between the preset path and the feedback position, so as to ensure that the electric screwdriver 5 can reach the target position quickly and accurately, further expanding the working range of the mechanism and ensuring that screw installation operations can be performed on automotive parts in different positions.

[0037] The electric screwdriver 5 is the core component for screw installation. Its bottom-mounted screwdriver bit 6 houses a screw locking head 7, which is secured by a fixing assembly. Two sets of arc-shaped locking blocks 8 within the fixing assembly are slidably connected within the screwdriver bit 6 and, under the elastic force of the spring 9, engage with the slot 10 within the screw locking head 7, thus firmly fixing the screw locking head 7 to the bottom of the screwdriver bit 6. During screw installation, the torque sensor built into the electric screwdriver 5 monitors torque changes in real time and transmits the data to the control box 17. The control box 17 dynamically adjusts the speed and direction of the electric screwdriver 5 according to preset torque parameters. When installing hexagonal socket head cap screws, the cross-shaped locking head at the top... The fixed plug 11 is inserted into the cross-shaped fixed slot 12 inside the electric screwdriver bit 6. The arc-shaped locking block 8 is engaged with the slot 10 inside the cross-shaped fixed plug 11 under the elastic force of the spring 9, ensuring that the locking head will not loosen during installation. After the electric screwdriver 5 is started, the screw locking head 7 moves to the screw installation position of the automotive parts through the X-axis, Z-axis and Y-axis servo lead screw linear module 14, so that the screw locking head 7 can contact the screw head in the screw installation position. Under the action of the electric screwdriver 5, the screw locking head 7 first screws in quickly at a high speed. When the torque is close to the preset value, the speed is automatically reduced to tighten precisely until the set torque is reached, ensuring that the screw installation is both efficient and firm.

[0038] When it is necessary to replace the hex socket locking head with a flathead or Phillips head, the operator first pauses the equipment operation by controlling the control box 17 to ensure safe operation. Then, the operator manually applies a downward force to pull the locking head, so that the Phillips head retaining plug 11 on the top of the locking head moves downward, causing the arc-shaped locking block 8 to overcome the elastic force of the spring 9 and slide into the inside of the electric screwdriver bit 6, disengaging from the current locking head's slot 10. At this point, the old hex socket locking head can be easily removed. Then, a suitable flathead or Phillips head locking head is selected, and its Phillips head retaining plug 11 is aligned with the Phillips head retaining slot 12 inside the electric screwdriver bit 6. The head is then slowly inserted. When the locking head is inserted into place, the arc-shaped locking block 8 automatically pops out under the action of the spring 9 and locks into the slot 10 of the new locking head, completing the locking head's fixation.

[0039] Before screw installation, the automotive parts need to be secured to ensure accuracy and stability. Two sets of electric cylinders 15 are installed on the moving base 19, and clamping blocks 16 connected to their push rods are used to hold the automotive parts. The control box 17 pre-sets the extension and retraction stroke of the electric cylinders 15 according to the size and shape of the automotive parts. When the electric cylinders 15 are working, the built-in displacement sensor (not shown in the attached figure) provides real-time feedback on the position information of the clamping blocks 16, thereby improving the control box 17's ability to adjust the extension and retraction of the electric cylinders 15 and ensuring that the clamping blocks 16 can firmly fix the automotive parts in the appropriate position. After the screw installation is completed, the electric cylinders 15 retract, the clamping blocks 16 release, and the automotive parts with the screws installed can be removed.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automobile accessory screw automatic mounting mechanism characterized by comprising: include: A base (1) is connected to a frame (2) at the top of the base (1), and an X-axis servo lead screw linear module (3) is provided on the top of the frame (2). A Z-axis servo lead screw linear module (4) is connected to the X-axis moving slide of the X-axis servo lead screw linear module (3). An electric screwdriver (5) is connected to the Z-axis moving slide of the Z-axis servo lead screw linear module (4). An electric screwdriver bit (6) is installed at the bottom of the electric screwdriver (5). A screw locking head (7) is fixed inside the electric screwdriver bit (6) by a fixing component. The fixing component includes an arc-shaped locking block (8) and a spring (9). Two sets of arc-shaped locking blocks (8) are provided and are slidably connected inside the electric screwdriver bit (6). The spring (9) pushes the arc-shaped locking block (8) to engage with the slot (10) inside the screw locking head (7) so that the screw locking head (7) is fixed to the bottom of the electric screwdriver bit (6).

2. The automatic installation mechanism of a car accessory screw according to claim 1, characterized in that: The screw locking head (7) is an internal hexagon locking head. The top of the screw locking head (7) is connected to a cross-shaped fixing plug (11). The electric screwdriver bit (6) is provided with a cross-shaped fixing slot (12). The cross-shaped fixing slot (12) is provided with sliding grooves on both sides.

3. The automatic installation mechanism of a car accessory screw according to claim 2, characterized in that: The arc-shaped locking block (8) is slidably connected in the sliding groove. The spring (9) is provided in two sets and is respectively located in the two sets of sliding grooves. The two ends of the spring (9) are respectively connected to the arc-shaped locking block (8) and the electric screwdriver bit (6).

4. The automatic installation mechanism of a car accessory screw according to claim 2, characterized in that: The slot (10) is provided in two sets and is respectively located in the cross-shaped fixing plug (11). After the cross-shaped fixing plug (11) is inserted into the cross-shaped fixing slot (12), the arc-shaped locking block (8) cooperates with the slot (10) to engage.

5. The automatic installation mechanism of a car accessory screw according to claim 1, characterized in that: The machine base (1) is provided with two sets of processing tables (13) on the top, and each set of processing tables (13) is provided with a Y-axis servo screw linear module (14). A movable seat (19) is connected to the Y-axis moving slide of the Y-axis servo screw linear module (14).

6. The automatic installation mechanism of a car accessory screw according to claim 5, characterized in that: The movable seat (19) is equipped with two sets of electric cylinders (15), and the push rod of the electric cylinder (15) is connected to a clamping block (16) and a protective pad is connected to the clamping block (16).

7. The automatic installation mechanism of a car accessory screw according to claim 1, characterized in that: The base (1) is equipped with a control box (17).

8. The automatic installation mechanism of a car accessory screw according to claim 1, characterized in that: The bottom of the base (1) is rotatably connected to several casters (18).

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