Mechanical square machining fixture

Abstract

The present disclosure relates to the technical field of mechanical square tube machining clamps, and one embodiment of the present disclosure provides a mechanical square tube machining clamp, which comprises a disc and a fixing frame, the fixing frame is arranged on the surface of the disc, a connecting assembly is arranged on the disc, a sleeve frame is rotationally connected to one end of the fixing frame through a pin shaft, an adjusting clamping assembly is arranged between the sleeve frame and the fixing frame, a tensioning assembly is arranged on the sleeve frame and the fixing frame, the adjusting clamping assembly comprises a base frame, the base frame is fixed to the bottom of the fixing frame, installation openings are formed in the fixing frame and the sleeve frame, a anti-falling frame is fixedly connected to the bottom of the base frame through bolts, an adjusting stud is rotationally connected between the base frame and the anti-falling frame, and clamping blocks are arranged in the installation openings. Through the above technical solution, the non-target clamping mode in the prior art causes the technical problems of slow clamping speed, poor positioning accuracy and difficulty in matching the beat demand of the automatic production line.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of mechanical square mother machining fixtures, specifically to mechanical square mother machining fixtures. Background Technology

[0002] In the field of machining, square nuts (referred to as "square nuts") are important connecting components widely used in industries such as construction, machinery equipment, and rail transportation. The machining accuracy of square nuts directly affects their thread fit accuracy and connection reliability. Therefore, in processes such as turning, milling, or drilling, special fixtures are required to achieve stable clamping. However, in traditional machining, while general-purpose chucks (such as three-jaw chucks and four-jaw chucks) have mature clamping technology for round workpieces, they have significant shortcomings in clamping square nuts, making it difficult to meet the requirements of high-efficiency machining.

[0003] As industrial production demands higher efficiency and precision, the drawbacks of traditional chucks in square nut machining are becoming increasingly apparent. On one hand, non-specific clamping methods result in slow clamping speeds and poor positioning accuracy, making it difficult to match the cycle time requirements of automated production lines. On the other hand, unreliable clamping can lead to machining errors, such as misaligned threaded holes and excessive surface roughness, increasing the scrap rate. Therefore, there is an urgent need to design a specialized machining fixture for square nuts, achieving rapid positioning and stable clamping through structural innovation. This would solve the problem of low machining efficiency associated with general-purpose chucks, thereby improving the production efficiency and finished product quality of square nut machining. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a mechanical square mother machining fixture, which solves the technical problem that the non-targeted clamping method in the prior art leads to slow clamping speed, poor positioning accuracy, and difficulty in matching the cycle time requirements of automated production lines.

[0005] According to one aspect, at least one embodiment of this disclosure provides a mechanical mother-machine tool fixture, comprising:

[0006] A disk and a mounting bracket, wherein the mounting bracket is disposed on the surface of the disk;

[0007] A connecting component, the connecting component being disposed on the disk;

[0008] A clamping frame and an adjusting clamping assembly are provided. The clamping frame is rotatably connected to one end of the fixed frame via a pin, and the adjusting clamping assembly is disposed between the clamping frame and the fixed frame.

[0009] A tensioning assembly is disposed on the sleeve frame and the fixing frame;

[0010] The adjusting clamping assembly includes a base frame, which is fixed to the bottom of the fixed frame. Both the fixed frame and the clamping frame have installation openings. An anti-detachment frame is fixedly connected to the bottom of the base frame by bolts. An adjusting stud is rotatably connected between the base frame and the anti-detachment frame. A clamping block is provided in each installation opening.

[0011] As a further technical solution, an internal threaded block is provided at the bottom of the clamping block located in the fixed frame. The internal threaded block is connected to the adjusting stud through a threaded engagement. The clamping block located in the sleeve frame is fixedly connected to the sleeve frame by bolts.

[0012] As a further technical solution, the tensioning assembly includes a side frame, which is disposed outside the fixed frame. A rotating block is rotatably connected to the side frame via a pin, and a screw is threadedly connected to the rotating block.

[0013] As a further technical solution, a locking block is rotatably connected to one end of the screw, and a slot is opened at one end of the top of the clamping frame. The locking block is inserted into the slot, and several stabilizing rods are provided at the bottom of the locking block. All the stabilizing rods are movably fitted into the rotating block.

[0014] As a further technical solution, the connecting component includes a support block, which is fixed to the side surface of the disk. The support block has an overall triangular structure, and several surfaces of the support block are provided with anti-slip raised layers.

[0015] As a further technical solution, the inner surface of the card slot and the side surface of the card block are both inclined structural surfaces.

[0016] As a further technical solution, the disk and the support block have axial through holes on their surfaces.

[0017] As a further technical solution, the surface of the fixing frame is connected to a fixing bolt by a threaded screw, and the fixing bolt is supported on the surface of the clamping block.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] In this disclosure, the adjusting clamping assembly achieves precise movement of the clamping block within the fixed frame by adjusting the threaded engagement between the stud and the internal threaded block. Combined with the fixable clamping block within the clamping frame, it can quickly adapt to the clamping requirements of square nuts of different specifications, solving the problem of slow clamping speed in traditional general-purpose fixtures. The clamping block fits tightly against the surface of the square nut, and combined with the tightening effect of the fixing bolts, ensures that the square nut does not wobble during processing, improving positioning accuracy, avoiding processing errors caused by unstable clamping, reducing scrap rate, and meeting the high-efficiency cycle requirements of automated production lines. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0022] Figure 2 This is an isometric drawing of the present disclosure;

[0023] Figure 3 This is another isometric view of the present disclosure;

[0024] Figure 4 This is an isometric sectional view of the present disclosure;

[0025] In the diagram: 1. Disc; 2. Fixing frame; 3. Clamping frame; 4. Adjusting clamping assembly; 4-1. Base frame; 4-2. Mounting port; 4-3. Anti-detachment frame; 4-4. Adjusting stud; 4-5. Clamping block; 4-6. Internal threaded block; 5. Tensioning assembly; 5-1. Side frame; 5-2. Rotating block; 5-3. Screw; 5-4. Locking block; 5-5. Locking groove; 5-6. Stabilizing rod; 6. Connecting assembly; 6-1. Support block; 6-2. Anti-slip protrusion; 7. Shaft through hole; 8. Fixing bolt. Detailed Implementation

[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-4 As shown, a mechanical nut machining fixture according to an embodiment of the present disclosure is illustrated, comprising:

[0033] The disk 1 and the fixing frame 2 are disposed on the surface of the disk 1;

[0034] Connection component 6, which is disposed on the disk 1;

[0035] The clamping frame 3 and the adjusting clamping assembly 4 are provided. The clamping frame 3 is rotatably connected to one end of the fixed frame 2 by a pin. The adjusting clamping assembly 4 is disposed between the clamping frame 3 and the fixed frame 2.

[0036] Tensioning component 5, which is disposed on the sleeve frame 3 and the fixing frame 2;

[0037] The adjusting clamping assembly 4 includes a base frame 4-1, which is fixed to the bottom of the fixed frame 2. Both the fixed frame 2 and the clamping frame 3 have mounting openings 4-2. An anti-detachment frame 4-3 is fixedly connected to the bottom of the base frame 4-1 by bolts. An adjusting stud 4-4 is rotatably connected between the base frame 4-1 and the anti-detachment frame 4-3. A clamping block 4-5 is provided in each mounting opening 4-2. The clamping block 4-5 located in the fixed frame 2 has an internal thread block 4-6 at its bottom. The internal thread block 4-6 is connected to the adjusting stud 4-4 by threaded engagement. The clamping block 4-5 located in the clamping frame 3 is fixedly connected to the clamping frame 3 by bolts.

[0038] In some examples, to achieve the effect of being adjustable according to the specifications of the square nut, an adjusting clamping assembly 4 is designed. This assembly includes a base frame 4-1 set at the bottom of the fixed frame 2, an anti-slip frame 4-3 rigidly connected to the fixed frame 2 by bolts, and an adjusting stud 4-4 rotatably connected between the base frame 4-1 and the anti-slip frame 4-3. Its two ends are respectively engaged with the base frame 4-1 and the anti-slip frame 4-3 through bearings, so that the adjusting stud 4-4 can rotate flexibly without axial displacement. The mounting openings 4-2 opened in the fixed frame 2 and the clamping frame 3 provide installation space for the clamping block 4-5, ensuring that the clamping block 4-5 can be accurately aligned with the clamping position of the square nut.

[0039] The internally threaded block 4-6 located at the bottom of the clamping block 4-5 within the fixed frame 2 is tightly threaded into the adjusting stud 4-4. When the adjusting stud 4-4 is rotated, the internally threaded block 4-6 moves along the axis of the adjusting stud 4-4, thereby causing the clamping block 4-5 within the fixed frame 2 to move synchronously within the mounting opening 4-2, which can be used as a reference for adjustment. The clamping block 4-5 located within the sleeve frame 3 is fixedly connected to the sleeve frame 3 by bolts. Its position can be changed and fixed according to the specifications of the square nut to ensure symmetrical clamping with the clamping block 4-5 within the fixed frame 2.

[0040] The adjusting clamping assembly 4 adjusts the position of the clamping block 4-5 inside the fixing frame 2 through the threaded transmission between the adjusting stud 4-4 and the internal threaded block 4-6. Combined with the pre-fixed clamping block 4-5 inside the clamping frame 3, it can accommodate the clamping requirements of square nuts of different specifications. During processing, rotating the adjusting stud 4-4 moves the two clamping blocks 4-5 towards each other, firmly clamping the square nut and preventing it from shaking or shifting during processing, thus ensuring processing accuracy and meeting diverse square nut processing needs.

[0041] like Figures 1-4As shown in the figure, the tensioning assembly 5 in this embodiment includes a side frame 5-1, which is disposed outside the fixed frame 2. A rotating block 5-2 is rotatably connected to the side frame 5-1 via a pin. A screw 5-3 is threadedly connected to the rotating block 5-2. A locking block 5-4 is rotatably fitted to one end of the screw 5-3. A slot 5-5 is provided at one end of the top of the tensioning frame 3. The locking block 5-4 is inserted into the slot 5-5. Several stabilizing rods 5-6 are provided at the bottom of the locking block 5-4. All stabilizing rods 5-6 are movably fitted into the rotating block 5-2.

[0042] In some examples, to achieve a reliable tensioning and fixing effect, a tensioning assembly 5 is designed. This assembly includes a side frame 5-1 fixed to the outside of the fixing frame 2, forming an integrated structure with the fixing frame 2, providing a stable mounting base for the rotating block 5-2. The rotating block 5-2 is rotatably connected to the side frame 5-1 via a pin, allowing it to rotate freely around the pin, so that the angle of the screw 5-3 can be adjusted according to the position of the clamping frame 3. The screw 5-3 and the rotating block 5-2 are connected by a threaded engagement. When the screw 5-3 is rotated, it moves along its own axis, thereby driving the locking block 5-4, which is rotated and connected at one end, to move synchronously.

[0043] The locking block 5-4 is connected to the rotating screw 5-3 in a rotating assembly, ensuring that the locking block 5-4 does not rotate with the screw 5-3 during its movement, thus guaranteeing precise alignment of the locking block 5-4 with the slot 5-5 on the top of the clamping frame 3. The slot 5-5 at one end of the top of the clamping frame 3 is adapted to the shape of the locking block 5-4, forming a stable locking structure when the locking block 5-4 is inserted into the slot 5-5. Several stabilizing rods 5-6 at the bottom of the locking block 5-4 are movably fitted within the rotating block 5-2. During the movement and operation of the locking block 5-4, the stabilizing rods 5-6 provide guidance and support, preventing the locking block 5-4 from tilting and ensuring precise engagement between the locking block 5-4 and the slot 5-5.

[0044] like Figures 1-4 As shown in the figure, the connecting component 6 in this embodiment includes a support block 6-1, which is fixed to the side surface of the disk 1. The support block 6-1 has a triangular structure, and several surfaces of the support block 6-1 are provided with anti-slip protrusions 6-2.

[0045] In some examples, a connecting component 6 is designed to achieve a secure connection with the chuck. This component includes a support block 6-1, which is connected to the side surface of the disk 1 by welding or bolting, forming a robust integral structure with the disk 1. This connection method can withstand external forces generated during processing and prevent loosening between the support block 6-1 and the disk 1. The support block 6-1 has an overall triangular structure. The stability of the triangle allows it to evenly distribute the force when connected to the chuck, enhancing the stability of the connection. Even when subjected to vibrations or impacts during processing, the overall structure remains stable.

[0046] Several surfaces of the support block 6-1 are provided with anti-slip raised layers 6-2. These anti-slip raised layers 6-2 can be uniformly distributed raised textures or granular structures. When the support block 6-1 is connected to the chuck, the anti-slip raised layers 6-2 can increase the friction between the support block 6-1 and the chuck, preventing relative sliding between the support block 6-1 and the chuck due to vibration or other reasons during processing.

[0047] The connecting component 6 achieves a reliable connection with the chuck through the stable connection between the support block 6-1 and the disk 1, as well as the design of the triangular structure and the anti-slip protrusion 6-2.

[0048] For example, such as Figure 4 As shown, the inner surface of the slot 5-5 and the side surface of the block 5-4 are both inclined structural surfaces.

[0049] In some examples, the inner surface of the slot 5-5 and one side surface of the block 5-4 are both inclined surfaces. The slopes of the two inclined surfaces match, and when the block 5-4 is inserted into the slot 5-5, the inclined structure makes the contact tighter. When tightened, it generates lateral compressive force, which enhances the clamping firmness, prevents the tightening component 5 from loosening, and improves the overall stability of the fixture.

[0050] For example, such as Figure 4 As shown, the disk 1 and the support block 6-1 have axial through holes 7 on their surfaces.

[0051] In some examples, the disk 1 and the support block 6-1 have a central through hole 7. The through hole is coaxial with the axis of the disk 1, which facilitates the passage of a drill bit.

[0052] For example, such as Figure 1 As shown, the surface of the fixing frame 2 is connected to the fixing bolt 8 by threaded screws, and the fixing bolt 8 is supported on the surface of the clamping block 4-5.

[0053] In some examples, the surface of the fixing bracket 2 is connected to a fixing bolt 8 by a threaded connection, and the fixing bolt 8 is supported on the surface of the clamping block 4-5. Tightening the fixing bolt 8 can further fix the clamping block 4-5, preventing it from shifting during processing. In conjunction with the adjusting stud 4-4, it can enhance the clamping reliability of the clamping block 4-5 for square nuts of different specifications and improve the applicability of the fixture.

[0054] In practical use: The disc 1 is fixed to the processing equipment by the support block 6-1 of the connecting component 6. The anti-slip protrusion 6-2 of the triangular support block 6-1 enhances the connection stability with the equipment, and the through hole 7 of the shaft facilitates the use of processing tools. Rotate the clamping bracket 3 to make it rotate around the pin of the fixed bracket 2. Place the mechanical square nut between the mounting port 4-2 of the fixed bracket 2 and the clamping bracket 3. According to the specifications of the square nut, rotate the adjusting stud 4-4 to drive the internal threaded block 4-6 of the clamping block 4-5 in the fixed bracket 2 to move, so that the clamping block 4-5 fits against one side of the square nut. Then fix the clamping block 4-5 in the clamping bracket 3 with bolts to make it fit against the other side of the square nut. Rotate the rotating block 5-2 of the tensioning assembly 5 to a suitable angle, and tighten the screw 5-3 to push the locking block 5-4 into the slot 5-5 of the clamping frame 3. Tilt the structural surface to ensure that the locking block 5-4 fits tightly with the slot 5-5. The stabilizing rod 5-6 ensures that the locking block 5-4 does not tilt. Finally, tighten the fixing bolt 8 on the surface of the fixing frame 2 to tighten the clamping block 4-5. After processing, turn the screw 5-3 in the opposite direction to disengage the locking block 5-4 from the slot 5-5, rotate the clamping frame 3 to open, and remove the square nut.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A mechanical square-shaped mother-of-pearl machining fixture, characterized in that, include: A disc (1) and a fixing frame (2), the fixing frame (2) being disposed on the surface of the disc (1); A connecting component (6) is disposed on the disk (1); The clamping frame (3) and the adjusting clamping assembly (4) are provided. The clamping frame (3) is rotatably connected to one end of the fixed frame (2) by a pin. The adjusting clamping assembly (4) is provided between the clamping frame (3) and the fixed frame (2). Tensioning assembly (5), the tensioning assembly (5) is disposed on the sleeve frame (3) and the fixing frame (2); The adjusting clamping assembly (4) includes a base frame (4-1), which is fixed to the bottom of the fixed frame (2). Both the fixed frame (2) and the clamping frame (3) have an installation port (4-2). The bottom of the base frame (4-1) is fixedly connected to an anti-detachment frame (4-3) by bolts. An adjusting stud (4-4) is rotatably connected between the base frame (4-1) and the anti-detachment frame (4-3). A clamping block (4-5) is provided in each of the installation ports (4-2).

2. The mechanical square-shaped machining fixture according to claim 1, characterized in that, The clamping block (4-5) located in the fixed frame (2) is provided with an internal thread block (4-6) at its bottom. The internal thread block (4-6) is connected to the adjusting stud (4-4) by a threaded engagement. The clamping block (4-5) located in the sleeve frame (3) is fixedly connected to the sleeve frame (3) by bolts.

3. The mechanical square-shaped machining fixture according to claim 1, characterized in that, The tensioning assembly (5) includes a side frame (5-1), which is located outside the fixed frame (2). A rotating block (5-2) is rotatably connected to the side frame (5-1) via a pin, and a screw (5-3) is threadedly connected to the rotating block (5-2).

4. The mechanical square-shaped machining fixture according to claim 3, characterized in that, One end of the screw (5-3) is rotatably connected to a locking block (5-4). The top end of the clamping frame (3) is provided with a locking groove (5-5). The locking block (5-4) is inserted into the locking groove (5-5). Several stabilizing rods (5-6) are provided at the bottom of the locking block (5-4). The stabilizing rods (5-6) are all movably fitted into the rotating block (5-2).

5. The mechanical square-shaped machining fixture according to claim 1, characterized in that, The connecting component (6) includes a support block (6-1), which is fixed to the side surface of the disk (1). The support block (6-1) has a triangular structure, and several surfaces of the support block (6-1) are provided with anti-slip protrusions (6-2).

6. The mechanical square-shaped machining fixture according to claim 4, characterized in that, The inner surface of the slot (5-5) and the side surface of the block (5-4) are both inclined structural surfaces.

7. The mechanical square-shaped machining fixture according to claim 5, characterized in that, The disk (1) and the support block (6-1) have axial through holes (7) on their surfaces.

8. The mechanical square-shaped machining fixture according to claim 1, characterized in that, The surface of the fixing frame (2) is connected to a fixing bolt (8) by a threaded screw, and the fixing bolt (8) is supported on the surface of the clamping block (4-5).

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