A curved platen clamp

Abstract

The utility model relates to the technical field of machining frock, specifically is a kind of bent pressing plate clamp, for being pressed tightly piece clamped on base plate, including bent pressing plate main body, adjusting stud and connecting block, the periphery of being pressed tightly piece is provided with pressing groove, the periphery of base plate is provided with several threaded holes, bent pressing plate main body is composed of middle straight section, upper bent structure and lower bent structure, upper bent structure and lower bent structure are respectively arranged in the upper portion and lower portion of middle straight section, upper bent structure is inclined downward towards the side away from middle straight section, lower bent structure is inclined downward towards the side away from middle straight section, long hole is provided on middle straight section, one end of adjusting stud is connected with threaded hole by screw thread, and the other end is connected with connecting block by screw thread after passing through long hole, and connecting block is nut.The bent pressing plate clamp can effectively convert radial force into axial force, and realize the stable clamping of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of machining tooling technology, specifically to a curved pressure plate clamp. Background Technology

[0002] In many industrial fields such as machining and assembly, effective workpiece clamping is a key step in ensuring machining accuracy and assembly quality. However, traditional fixtures often fail to meet actual production needs when faced with workpieces of special shapes or situations requiring specific clamping force direction and magnitude.

[0003] Specifically, existing fixture structures present several problems for workpieces that require axial force to be applied in a specific direction for fixation. On one hand, some fixture structures experience interference during machining, preventing the completion of all machining stations in a single setup and failing to provide a suitable force transmission method, resulting in poor clamping performance and impacting machining efficiency and product quality. On the other hand, some fixtures damage the workpiece surface during force application, potentially affecting the workpiece's subsequent performance and reducing overall product quality.

[0004] Given the shortcomings of traditional clamps, there is an urgent need for a new type of clamp that can precisely control the direction and magnitude of the clamping force. This new clamp should be able to free up the machining area by changing the direction of the clamping force, while minimizing damage to the workpiece surface, thus meeting the clamping requirements of special workpieces and improving the efficiency and quality of industrial production. This utility model, a curved pressure plate clamp, has emerged in this context, aiming to address the shortcomings of existing clamps under specific clamping requirements. Summary of the Invention

[0005] To solve the above problems, this utility model provides a curved pressure plate clamp that can effectively convert radial force into axial force, thereby achieving stable clamping of the workpiece.

[0006] The technical solution of this utility model is as follows: A curved pressure plate clamp for clamping a component to be clamped onto a base plate includes a curved pressure plate body, an adjusting stud, and a connecting block. The component to be clamped has clamping grooves around its perimeter, and the base plate has several threaded holes around its perimeter. The curved pressure plate body consists of a middle straight section, an upper curved structure, and a lower curved structure. The upper and lower curved structures are respectively located at the upper and lower parts of the middle straight section. The upper curved structure slopes downwards towards the side furthest from the middle straight section, and the lower curved structure slopes downwards towards the side furthest from the middle straight section. An elongated hole is provided on the middle straight section. One end of the adjusting stud is threaded into the threaded hole, and the other end passes through the elongated hole and is threaded into the connecting block, which is a nut.

[0007] The angle between the upper curved structure and the horizontal plane is greater than 0 degrees and less than 1 degree.

[0008] Preferably, the angle between the upper curved structure and the horizontal plane is 0.3 degrees.

[0009] The angle between the lower curved structure and the horizontal plane is greater than 10 degrees and less than 30 degrees.

[0010] Preferably, the angle between the lower curved structure and the horizontal plane is 15 degrees.

[0011] The surface of the curved pressure plate that contacts the part being pressed is provided with an anti-slip pad.

[0012] Specifically, the anti-slip mat is made of rubber.

[0013] Furthermore, the surface of the anti-slip mat is provided with anti-slip texture.

[0014] The root of the lower curved structure is aligned with the bottom surface of the substrate.

[0015] The main body of the curved pressure plate is made of high-strength alloy steel.

[0016] The beneficial effects of this utility model are as follows: 1. This utility model discloses a curved pressure plate clamp. Through the design of an upper 0.3-degree hook structure and a lower 15-degree inclined surface, the curved pressure plate clamp can effectively convert radial force into axial force, achieving stable clamping of the workpiece. This makes the magnitude and direction of the clamping force more controllable, improving the accuracy of processing and assembly. By adjusting the cooperation between the stud, the threaded hole, and the connecting block, the position of the curved pressure plate body relative to the base plate can be precisely adjusted, thereby further precisely controlling the magnitude of the axial force applied to the workpiece.

[0017] 2. The present invention discloses a curved pressure plate clamp, which can adapt to workpieces of various shapes, especially those that require specific axial force clamping, making the clamp a promising tool for applications in machining, assembly and other industrial fields. The surface of the curved pressure plate body that contacts the workpiece being clamped is provided with an anti-slip pad, and the surface of the anti-slip pad is provided with an anti-slip texture, which further enhances the adaptability of the clamp to workpieces of different shapes and materials, while preventing the workpiece from sliding during the clamping process.

[0018] 3. The present invention discloses a curved pressure plate fixture. The anti-slip pad in the curved pressure plate fixture avoids direct hard contact between the fixture and the workpiece, reduces damage to the workpiece surface, and is of great significance for some workpieces with high surface precision requirements, ensuring the subsequent use performance of the workpiece.

[0019] 4. The present invention discloses a curved pressure plate clamp. The curved pressure plate clamp has a simple structural design, and the connection and operation of each component are intuitive and easy to understand, which enables operators to get started quickly and improves work efficiency. Attached Figure Description

[0020] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0021] In the attached diagram: Figure 1 This is an exploded structural diagram of a curved pressure plate clamp according to an embodiment of the present utility model; Figure 2 This is a front view of the clamped part of a curved pressure plate clamp according to an embodiment of the present utility model; Figure 3 for Figure 2 Sectional view of AA; Figure 4 This is a front view of the substrate of a curved pressure plate clamp according to an embodiment of the present utility model; Figure 5 for Figure 4 BB section view; Figure 6 This is a three-dimensional structural diagram of the curved pressure plate body of a curved pressure plate clamp according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the stress analysis of the curved pressure plate fixture; The components represented by the various reference numerals in the diagram are: This utility model comprises: 1. a clamped part, 2. a base plate, 3. a curved pressure plate body, 4. an adjusting stud, 5. a connecting block, 11. a clamping groove, 21. a threaded hole, 31. a straight section in the middle, 311. a long hole, 32. an upper curved structure, and 33. a lower curved structure. Detailed Implementation

[0022] like Figure 1 As shown, the curved pressure plate clamp includes a curved pressure plate body 3, an adjusting stud 4, and a connecting block 5, which are used to securely clamp the clamped part 1 onto the base plate 2.

[0023] The curved pressure plate body 3 is made of high-strength alloy steel to ensure that the clamp is not easily deformed when subjected to large clamping forces; for example Figure 6As shown, the curved pressure plate body 3 consists of a middle straight section 31, an upper curved structure 32, and a lower curved structure 33. The upper curved structure 32 has a precisely set angle of 0.3 degrees with the horizontal plane and tilts downwards towards the side away from the middle straight section 31 to achieve effective force conversion and precise clamping. The lower curved structure 33 has an angle of 15 degrees with the horizontal plane and also tilts downwards towards the side away from the middle straight section 31, with its root aligned with the bottom surface of the substrate 2 to ensure stability during clamping. An elongated hole 311 is provided on the middle straight section 31 for adjusting the passage and adjustment of the stud 4.

[0024] One end of the adjusting stud 4 is threadedly connected to the threaded holes 21 provided around the perimeter of the substrate 2. The structure of the substrate 2 is as follows: Figure 4 and Figure 5 As shown, the other end passes through the elongated hole 311 on the curved pressure plate body 3 and is threadedly connected to the connecting block 5. By rotating the adjusting stud 4, the position of the curved pressure plate body 3 relative to the base plate 2 can be adjusted, thereby changing the magnitude of the axial force applied to the pressed part 1.

[0025] In this embodiment, the connecting block 5 is a nut, which is threaded to the other end of the adjusting stud 4 to provide radial force to the curved pressure plate body 3 and achieve stable clamping.

[0026] like Figure 2 and Figure 3 As shown, the clamped part 1 is provided with clamping grooves 11 around its perimeter, which are used to cooperate with the curved structure of the curved pressure plate body 3 to achieve clamping.

[0027] A rubber anti-slip pad is provided on the surface of the curved pressure plate body 3 that contacts the clamped part 1. The surface of the anti-slip pad is further provided with anti-slip texture to increase friction, prevent the clamped part 1 from shifting during clamping, and protect the surface of the clamped part 1 from damage.

[0028] The curved pressure plate fixture in this embodiment achieves stable and precise clamping of the clamped part 1 through a unique curved structure design and the cooperation of the adjusting stud 4 and the connecting block 5, while protecting the surface quality of the clamped part 1 and improving the accuracy and efficiency of processing and assembly. Example

[0029] The curved clamping plate fixture features a 0.3-degree hook structure at the top, a 15-degree slope at the bottom, and a 17*30 long hole in the middle for M16 bolt locking. It is especially suitable for scenarios where radial force needs to be applied to the plane to apply axial force to the workpiece through the curved part to achieve stable clamping.

[0030] The curved pressure plate fixture includes a clamped part 1, a base plate 2, a curved pressure plate body 3, an adjusting stud 4, and a connecting block 5.

[0031] The main body 3 of the curved pressure plate has a specific curved structure and is made of high-strength alloy steel. The curvature and length of its curved part are optimized according to the shape and size range of common clamped workpieces.

[0032] The adjusting stud 4 is connected by a thread, with one end engaging with a pre-set threaded hole on the base plate 2 and the other end connected to a connecting block on the bent pressure plate body 3. It is used to adjust the position of the bent pressure plate body 3 relative to the base plate 2 to change the magnitude of the axial force applied to the workpiece.

[0033] The connecting block 5 is equipped with an adjusting stud 4 at one end for applying radial force to the curved pressure plate body 3, and is made of high-hardness steel.

[0034] The clamped part 1 is the unit to which force is applied. It is usually located in the blank position with a slot for clamping the curved pressure plate body 3.

[0035] The length of the substrate 2 is designed according to the size of the clamped part 1, and is used to clamp the curved pressure plate body 3 to convert the radial force into the axial force.

[0036] The dimensions of the curved pressure plate body 3 are designed according to the slot positions of the base plate 2 and the pressed part 1, and are used to convert radial force into axial force.

[0037] The adjusting stud 4 is usually modified from an M20 bolt and is used to connect the curved pressure plate body 3 and the base plate 2.

[0038] The connecting block 5 is usually a nut, used to adjust the position of the bent pressure plate body 2 relative to the base plate 1, so as to change the magnitude of the axial force applied to the workpiece.

[0039] The curved clamping plate features a specific curved structure, meticulously designed to achieve efficient force conversion based on mechanical principles. The curvature and length of the curved portion are optimized for the shape and size range of common clamped workpieces, ensuring excellent contact with the workpiece surface when force is applied. The clamping plate body is made of high-strength alloy steel, a material with high strength and toughness, capable of withstanding significant clamping forces without easily deforming, guaranteeing the long-term stable use of the clamp.

[0040] An adjusting stud is installed between the base plate and the curved pressure plate body. The adjusting stud is threaded, with one end engaging a pre-drilled threaded hole on the base plate and the other end connected to a connecting block on the curved pressure plate body. By rotating the adjusting stud, the position of the curved pressure plate body relative to the base plate can be changed, thereby adjusting the magnitude of the axial force applied to the workpiece. The pitch of the adjusting stud is precisely calculated to ensure that the force change is uniform and easily controlled when rotating the adjusting stud.

[0041] Anti-slip pads are provided on the surfaces of the curved clamping plate that contact the workpiece and on the surfaces of the base plate that contact the worktable where the workpiece is placed. These anti-slip pads are made of materials with high friction and good elasticity, such as rubber. The surface of the anti-slip pad in contact with the workpiece has a fine texture to further increase friction and prevent the workpiece from shifting during clamping; the anti-slip pad in contact with the worktable stabilizes the clamp and prevents it from sliding on the worktable when force is applied.

[0042] When using this curved clamping plate fixture to hold a workpiece, first place the workpiece on the base plate and adjust its position. Then, rotate the adjusting stud to bring the curved clamping plate body closer to the workpiece. As the adjusting stud rotates, the curved clamping plate body rotates around the connection point with the base plate. At this time, the force applied to the adjusting stud is converted into a radial force through the planar part of the curved clamping plate body, while the curved part of the curved clamping plate body further converts this radial force into an axial force on the workpiece. Because the curved part of the curved clamping plate body is in contact with the workpiece surface, the axial force can be evenly applied to the workpiece, achieving stable clamping. During the clamping process, the anti-slip pad effectively prevents the workpiece and the fixture from sliding, ensuring the stability of the clamping. Figure 7 This is a schematic diagram of the force analysis of the curved pressure plate fixture.

[0043] This curved clamping plate fixture can precisely adjust the axial force applied to the workpiece by adjusting the stud, meeting the different clamping force requirements of different workpieces and improving the accuracy of machining and assembly. This curved clamping plate fixture can accommodate workpieces of various shapes, especially those that require specific axial force clamping, thus expanding the range of applications of the fixture. This curved pressure plate fixture can protect the workpiece surface. The anti-slip pad avoids direct hard contact between the fixture and the workpiece, reducing damage to the workpiece surface and ensuring the surface quality of the workpiece. This is of great significance for some workpieces with high surface precision requirements. This curved pressure plate clamp has a simple structure and is easy to operate. The overall clamp structure is simple in design, and the connection and operation of each component are intuitive and easy to understand. Operators can get started quickly, which improves work efficiency and makes maintenance and upkeep more convenient.

[0044] The manufacturing process of this curved pressure plate fixture is as follows: 1) Substrate fabrication: Select steel plates that meet strength requirements and cut them to size according to the dimensions of the parts to be pressed. Precisely drill threaded holes on the substrate to match the adjusting studs, ensuring that the position of the curved pressure plate body can be accurately adjusted after the adjusting studs are installed.

[0045] 2) Fabrication of the curved pressure plate body: High-strength alloy steel material is initially formed into a curved structure through forging process, and then machined and the curvature of the curved part is precisely ground to ensure the fit with the surface of common workpieces.

[0046] 3) Selection and machining of adjusting studs: Select M20 bolts according to design requirements. Machin the end of the adjusting stud appropriately to ensure good fit with the connecting block on the curved pressure plate body, achieving smooth rotational adjustment.

[0047] 4) Anti-slip mat installation: Cut the pre-prepared rubber anti-slip mat according to the shape of the contact surface with the curved pressure plate body 2 and the base plate. Use strong adhesive to stick the anti-slip mat to the contact surface between the curved pressure plate body and the workpiece, and to the contact surface between the base plate and the worktable, ensuring that the mat is firmly attached without bubbles or looseness.

[0048] The steps for using this curved pressure plate clamp are as follows: 1) Preparation: Place the prepared curved pressure plate fixture on a stable workbench, check whether all parts are firmly connected, and adjust whether the stud can rotate smoothly. 2) Workpiece placement: Place the workpiece to be clamped on the base plate. Based on the shape and size of the workpiece, use the positioning grooves or positioning holes that may exist on the base plate (if designed) to adjust the workpiece to a suitable position, ensuring that the part of the workpiece to be processed or assembled is in an easy-to-operate state.

[0049] 3) Clamping Operation: By rotating the adjusting stud, the curved clamping plate body gradually moves closer to the workpiece. During rotation, observe the contact between the curved clamping plate body and the workpiece to ensure that the curved part can evenly conform to the workpiece surface. Continuously rotate the adjusting stud according to the required clamping force for the workpiece until a suitable clamping state is achieved. At this point, the radial force applied through the plane is converted into an axial force on the workpiece through the curved clamping plate body, achieving a stable clamping of the workpiece.

[0050] 4) Machining or Assembly Operations: After the workpiece is securely clamped, corresponding machining (such as drilling, milling, etc.) or assembly operations can be performed. During the operation, pay attention to the condition of the fixture and the workpiece to ensure the stability of the clamping. If necessary, the adjusting stud can be finely adjusted.

[0051] 5) Workpiece removal: After machining or assembly, rotate the adjusting stud in the opposite direction to move the curved pressure plate away from the workpiece, and then remove the workpiece from the base plate. Clean the surface of the fixture of debris and contaminants to prepare it for the next use.

[0052] This curved clamping plate fixture has a simple structure, is easy to implement, and is versatile. It changes the traditional clamping method and meets the production needs of complex parts (such as cavity products). Practical application has shown good results, improving production efficiency and solving the problem of clamping plate interference at the work station when processing complex parts using traditional clamping methods.

Claims

1. A curved pressure plate clamp for clamping a clamping member (1) onto a base plate (2), characterized in that, The device includes a curved pressure plate body (3), an adjusting stud (4), and a connecting block (5). The pressed part (1) is provided with a pressing groove (11) around its perimeter, and the base plate (2) is provided with several threaded holes (21) around its perimeter. The curved pressure plate body (3) is composed of a middle straight section (31), an upper curved structure (32), and a lower curved structure (33). The upper curved structure (32) and the lower curved structure (33) are respectively located at the upper and lower parts of the middle straight section (31). The upper curved structure (32) is inclined downwards towards the side away from the middle straight section (31), and the lower curved structure (33) is inclined downwards towards the side away from the middle straight section (31). An elongated hole (311) is provided on the middle straight section (31). One end of the adjusting stud (4) is threadedly connected to the threaded hole (21), and the other end passes through the elongated hole (311) and is threadedly connected to the connecting block (5). The connecting block (5) is a nut.

2. The curved pressure plate clamp according to claim 1, characterized in that, The angle between the upper curved structure (32) and the horizontal plane is greater than 0 degrees and less than 1 degree.

3. A curved pressure plate clamp according to claim 2, characterized in that, The angle between the upper curved structure (32) and the horizontal plane is 0.3 degrees.

4. A curved pressure plate clamp according to claim 1, characterized in that, The angle between the lower curved structure (33) and the horizontal plane is greater than 10 degrees and less than 30 degrees.

5. A curved pressure plate clamp according to claim 4, characterized in that, The angle between the lower curved structure (33) and the horizontal plane is 15 degrees.

6. A curved pressure plate clamp according to claim 1, characterized in that, The surface of the curved pressure plate body (3) that contacts the pressed part (1) is provided with an anti-slip pad.

7. A curved pressure plate clamp according to claim 6, characterized in that, The anti-slip mat is made of rubber.

8. A curved pressure plate clamp according to claim 6 or 7, characterized in that, The surface of the anti-slip mat is provided with anti-slip texture.

9. A curved pressure plate clamp according to claim 1, characterized in that, The root of the lower curved structure (33) is aligned with the bottom surface of the substrate (2).

10. A curved pressure plate clamp according to claim 1, characterized in that, The curved pressure plate body (3) is made of high-strength alloy steel.

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