A fastening device for machining high-strength screws

Abstract

The utility model discloses a kind of fastening devices for processing high-strength screw, belong to screw processing positioning technical field, the back of support seat is equipped with fixed plate, the lower end of fixed plate is equipped with chassis, and the top frame is connected with the support fixing member by chassis, and the top frame is equipped with positioning head, and the end surface of positioning head is equipped with positioning plug, and the positioning plug is inserted into the plum blossom mouth of screw to be processed. Positioning mechanism can accurately position screw to be processed in device by positioning head and positioning plug, ensure that plum blossom mouth and positioning plug are accurately aligned, realize preliminary limiting, improve the accuracy and stability of screw processing. Telescopic clamping mechanism is cooperated by telescopic device, abutting head, rotating block and rotating piece, and further clamping after screw preliminary positioning. Telescopic device telescopic drives abutting head to move, rotating block is pushed to rotate, and screw is firmly clamped by the limiting connection of rotating piece and rotating block, and the mode is stable and reliable, can adapt to the screw processing demand of different sizes and shapes.

Description

Technical Field

[0001] This utility model relates to the field of screw processing and positioning technology, and in particular to a fastening device for processing high-strength screws. Background Technology

[0002] High-strength bolts, also known as high-strength screws, are often simply referred to as high-strength bolts in the construction field. These bolts are made of high-strength steel or require a high level of preload when tightened, resulting in a significantly higher load-bearing capacity than ordinary bolts of the same specifications. High-strength bolts transmit external forces through preload and friction. Their connection method relies on the enormous tightening preload generated within the bolt shank to tightly clamp the connecting plates, thereby generating sufficient friction to enhance the integrity and rigidity of the connection. When subjected to shear forces, high-strength bolt connections can be divided into friction-type connections and bearing-type connections, depending on the design and stress requirements.

[0003] In the machining of high-strength bolts, fixtures and other equipment are typically used to fasten the workpiece to ensure stability and machining accuracy. The design of fixtures requires comprehensive consideration of factors such as the shape, size, and machining requirements of the workpiece, resulting in relatively complex structures. Due to the high hardness and strength of high-strength bolts, more stringent requirements are placed on the clamping force and stability of the fixtures. However, the complexity of the fixture structure may limit the application of clamping force, making it difficult to further tighten the fixture, thus affecting machining accuracy and stability.

[0004] During the manufacturing and installation of fixtures, errors or deformations can affect the clamping effect. For example, a mismatch in the width of the fixture jaws may prevent the fixture from tightly securing the workpiece, while insufficient surface finish may affect the clamping force and stability. These problems can all prevent the fixture from effectively preventing workpiece slippage during machining, thus affecting the machining quality. Utility Model Content

[0005] The main objective of this invention is to provide a fastening device for processing high-strength screws, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fastening device for processing high-strength screws includes the screw to be processed and a support base; A fixing plate is installed on the back of the support base, and a base frame is provided at the lower end of the fixing plate. The base frame is connected to a top frame through a support fixing member. A positioning head is installed on the top frame, and a positioning plug is provided on the end face of the positioning head. The positioning plug is inserted into the spline opening of the screw to be processed to realize the limiting of the screw to be processed. A telescopic device is installed at the notch on the side wall of the support base, and the telescopic end of the telescopic device is connected to a clamping head. The inner end of the support base is connected to a rotating block through a rotating component. A positioning notch is opened on the rotating block, which is directly opposite the slot on the upper end of the support base. The screw to be processed is inserted into the positioning notch and the slot on the support base. Then, the telescopic device extends and retracts to drive the rotating block to rotate, thereby further clamping the screw to be processed.

[0007] As an optional solution of this application, the cross-section of the support base is U-shaped, and the support base is fixed to the fixing plate by bolts. The fixing plate and the base frame are integrated, and the cross-section of the fixing plate and the base frame is L-shaped. The upper end of the base frame is provided with multiple waist holes. As an optional solution of this application, the support fixing component includes a support screw, a fixing nut and an anti-slip washer. The anti-slip washer and the fixing nut are sleeved on the support screw and realize the fixing of the support fixing component, the base frame and the top frame. The cross-section of the top frame is designed in the shape of an "L" and the top frame is provided with a waist hole aligned with the base frame. As an optional solution of this application, the positioning head is welded to the top frame, and the positioning head and the positioning plug are designed as a single unit. The height of the positioning plug is adjusted up and down with the support fixing component so that it faces the slot at the upper end of the support base. As an optional solution of this application, the telescopic device is a hydraulic cylinder and an electric push rod, which are fixed to the support base by bolts. The clamping head is fixed to the telescopic end of the telescopic device by bolts, and the surface of the clamping head is connected with a rubber anti-slip sleeve by adhesive. As an optional solution of this application, the rotating component is fixed on the support base, the rotating component is inserted into the opening of the rotating block, the rotating component is limited to the rotating block, and the cross-section of the rotating block is designed in the shape of an "F". As an optional solution of this application, the side wall of the rotating block is provided with an anti-slip protrusion. The anti-slip protrusion increases the contact area between the rotating block and the pressing head. The surface of the anti-slip protrusion is connected with an anti-slip pad by an adhesive.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The positioning mechanism, through the design of the positioning head and positioning plug, can accurately position the screw to be processed in the device, ensuring that the screw's spline end is accurately aligned with the positioning plug, thus achieving a preliminary limiting function. This design improves the accuracy and stability of screw processing.

[0009] The telescopic clamping mechanism, through the cooperation of a telescopic device, a clamping head, a rotating block, and a rotating component, can further clamp the screw after its initial positioning. The telescopic movement of the telescopic device moves the clamping head, which in turn drives the rotating block to rotate. The limiting connection between the rotating component and the rotating block achieves a secure clamping of the screw. This clamping method is not only stable and reliable but also adaptable to the processing needs of screws of different sizes and shapes.

[0010] The anti-slip protrusions and anti-slip pads on the rotating block further enhance the clamping effect, effectively preventing the screw from slipping or shifting during processing. This not only ensures the machining accuracy and quality of the screw but also improves the safety and reliability of the entire device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a diagram showing the overall structure of the present invention; Figure 3 This is a front view of the overall structure of this utility model; Figure 4 The diagram shows the positioning plug, rotating block, rotating component, anti-slip protrusion, and screw to be processed according to this utility model.

[0012] In the diagram: 1. Support base; 2. Fixing plate; 3. Base frame; 4. Top frame; 5. Support fixing component; 6. Positioning head; 7. Positioning plug; 8. Telescopic device; 9. Clamping head; 10. Rotating block; 11. Rotating component; 12. Positioning notch; 13. Anti-slip protrusion; 14. Screw to be processed. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] like Figure 1 - Figure 4 As shown, a fastening device for processing high-strength screws includes a screw 14 to be processed and a support base 1. A fixing plate 2 is mounted on the back of the support base 1, and a base frame 3 is provided at the lower end of the fixing plate 2. A top frame 4 is connected to the base frame 3 through a support fixing member 5, and a positioning head 6 is mounted on the top frame 4. A positioning plug 7 is provided on the end face of the positioning head 6, which is inserted into the spline opening of the screw 14 to be processed, thereby realizing the limiting function of the screw 14 to be processed.

[0015] A telescopic device 8 is installed at the notch on the side wall of the support base 1, and a clamping head 9 is connected to the telescopic end of the telescopic device 8. A rotating block 10 is connected to the inner end of the support base 1 via a rotating component 11. A positioning notch 12 is provided on the rotating block 10, which is directly opposite the slot on the upper end of the support base 1. The screw 14 to be processed is inserted into the positioning notch 12 and the slot on the support base 1, and then the telescopic device 8 drives the rotating block 10 to rotate, thereby further clamping the screw 14 to be processed.

[0016] The support base 1 has a U-shaped cross-section and is fixed to the fixing plate 2 with bolts. The fixing plate 2 and the base frame 3 are integrated and have an L-shaped cross-section. The upper end of the base frame 3 has multiple slots, which help to fix and support the entire device.

[0017] The support fastener 5 includes a support screw, a fixing nut, and an anti-slip washer. The anti-slip washer and the fixing nut are fitted onto the support screw and secure the support fastener 5, the base frame 3, and the top frame 4. The top frame 4 also has an "L"-shaped cross-section and has slots aligned with the base frame 3 for easy installation and fixation.

[0018] The positioning head 6 is welded to the top frame 4, and the positioning head 6 and the positioning plug 7 are designed as a single unit. The height of the positioning plug 7 can be adjusted by moving the support fixing part 5 up and down, so that it is aligned with the slot at the top of the support base 1 to ensure positioning accuracy.

[0019] The telescopic device 8 can be a hydraulic cylinder or an electric push rod, and is fixed to the support base 1 by bolts. The clamping head 9 is fixed to the telescopic end of the telescopic device 8 by bolts, and the surface of the clamping head 9 is covered with a rubber anti-slip sleeve by adhesive to increase friction and prevent slippage.

[0020] The rotating component 11 is fixed on the support base 1 and inserted into the opening of the rotating block 10, with the rotating component 11 and the rotating block 10 in a limiting connection. The rotating block 10 has an "F" shaped cross-section, which helps to increase the stability and load-bearing capacity of the rotating block 10.

[0021] The side wall of the rotating block 10 is provided with an anti-slip protrusion 13. The anti-slip protrusion 13 increases the contact area between the rotating block 10 and the clamping head 9, thereby improving the clamping effect. The surface of the anti-slip protrusion 13 is connected with an anti-slip pad by an adhesive to further enhance the anti-slip effect and ensure that the screw will not be damaged or have a precision deviation due to slippage during processing.

[0022] Prepare the screws to be processed. Align the screw's spline with the positioning plug 7. Insert the screw so that the positioning plug 7 is inserted into the spline, achieving initial positioning. Operate the telescopic device 8, causing the telescopic end to move the clamping head 9. The clamping head 9 pushes the rotating block 10 to rotate, and through the limiting connection between the rotating part 11 and the rotating block 10, further clamping of the screw is achieved.

[0023] Adjust the height of the support fixing component 5 so that the height of the positioning plug 7 is directly aligned with the upper slot of the support base 1 to ensure accurate positioning. After confirming that the screws are securely tightened, check the stability of the entire device. Ensure that the fixing plate 2, base frame 3, and top frame 4 are firmly secured using bolts and anti-slip washers, etc.

[0024] Perform screw machining operations such as turning and milling. During machining, the anti-slip protrusion 13 and anti-slip pad of the rotating block 10 ensure that the screw will not be damaged or have its accuracy deviated due to slippage. After machining is completed, stop the machining equipment. Operate the telescopic device 8 to release the screw by disengaging the clamping head 9 from the rotating block 10.

[0025] Remove the machined screws for subsequent inspection or assembly. Throughout the process, ensure the stability and clamping effect of all components to guarantee machining accuracy and screw quality.

[0026] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fastening device for processing high-strength screws, comprising a screw to be processed (14) and a support (1), characterized in that: A fixing plate (2) is installed on the back of the support base (1), and a base frame (3) is provided at the lower end of the fixing plate (2). The base frame (3) is connected to a top frame (4) through a support fixing member (5). A positioning head (6) is installed on the top frame (4), and a positioning plug (7) is provided on the end face of the positioning head (6). The positioning plug (7) is inserted into the spline opening of the screw (14) to be processed, thereby limiting the position of the screw (14) to be processed. A telescopic device (8) is installed at the side wall notch of the support base (1), and a clamping head (9) is connected to the telescopic end of the telescopic device (8). The inner end of the support base (1) is connected to a rotating block (10) through a rotating part (11). A positioning notch (12) is opened on the rotating block (10). The positioning notch (12) is directly opposite the upper end of the support base (1). The screw (14) to be processed is inserted into the positioning notch (12) and the groove on the support base (1). Then, the telescopic device (8) extends and retracts to drive the rotating block (10) to rotate, thereby further clamping the screw (14) to be processed.

2. The fastening device for processing high-strength screws according to claim 1, characterized in that: The cross-section of the support base (1) is U-shaped, and the support base (1) is fixed to the fixing plate (2) by bolts. The fixing plate (2) and the base frame (3) are designed as a whole, and the cross-section of the fixing plate (2) and the base frame (3) is L-shaped. The upper end of the base frame (3) is provided with multiple waist holes.

3. A fastening device for processing high-strength screws according to claim 2, characterized in that: The support fixing component (5) includes a support screw, a fixing nut and an anti-slip washer. The anti-slip washer and the fixing nut are sleeved on the support screw and fix the support fixing component (5), the base frame (3) and the top frame (4). The cross-section of the top frame (4) is designed in an "L" shape, and the top frame (4) has a waist hole aligned with the base frame (3).

4. A fastening device for processing high-strength screws according to claim 3, characterized in that: The positioning head (6) is welded to the top frame (4), and the positioning head (6) and the positioning plug (7) are designed as a whole. The height of the positioning plug (7) is adjusted up and down with the support fixing part (5) so that it faces the upper end of the support base (1) with a slot.

5. A fastening device for processing high-strength screws according to claim 4, characterized in that: The telescopic device (8) is a hydraulic cylinder and an electric push rod, which are fixed to the support base (1) by bolts. The clamping head (9) is fixed to the telescopic end of the telescopic device (8) by bolts. The surface of the clamping head (9) is connected with a rubber anti-slip sleeve by adhesive.

6. A fastening device for processing high-strength screws according to claim 5, characterized in that: The rotating component (11) is fixed on the support base (1). The rotating component (11) is inserted into the opening of the rotating block (10). The rotating component (11) and the rotating block (10) are connected in a limiting manner. The cross-section of the rotating block (10) is designed in the shape of an "F".

7. A fastening device for processing high-strength screws according to claim 6, characterized in that: The side wall of the rotating block (10) is provided with an anti-slip protrusion (13). The anti-slip protrusion (13) increases the contact area between the rotating block (10) and the pressing head (9). The surface of the anti-slip protrusion (13) is connected with an anti-slip pad by an adhesive.

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