A clamp capable of adapting to different product sizes, capable of vacuum negative pressure and non-vacuum negative pressure

Abstract

The utility model relates to mechanical processing fixture technical field, and disclose a kind of vacuum negative pressure and no vacuum negative pressure's fixture that can adapt to different product size, including I -beam, I -beam upper end is equipped with cushion block, cushion block is equipped with load plate, vacuum air receiver is installed in load plate below, load plate is pasted and is equipped with chip guard, chip guard upper edge is equipped with fixed first locating block and second locating block, chip guard upper side near side edge is opened and is equipped with sliding slot, third locating block can be slidably installed in sliding slot;The utility model can quickly adapt to the processing demand of different size product by replacing the position of first locating block and second locating block, sliding adjustment third locating block and adjusting clamping mechanism component position, save delivery time and development cost.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, specifically a fixture that can adapt to different product sizes and can operate under vacuum or without vacuum. Background Technology

[0002] In industrial production processes, it is often necessary to process and handle products of different sizes, which requires fixtures to have good adaptability. Traditional fixtures often require frequent changes of fixture components when dealing with products of different sizes, which is cumbersome and costly.

[0003] Early clamps had simple structures, only suitable for fixing products of a single size or similar shape, with extremely limited applicability. With industrial development, some adjustable clamps emerged, but most had complex adjustment methods and low efficiency. Later, vacuum negative pressure clamps solved some product clamping problems to a certain extent because they could adsorb products through negative pressure. However, existing vacuum negative pressure clamps are generally only suitable for products within a specific size range; they cannot effectively clamp products outside this range, and they cannot simultaneously meet the diverse needs of clamping under both vacuum and non-vacuum conditions. Furthermore, existing clamps are complex to operate when switching between different functions, making them difficult to meet the demands of rapid production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fixture that can adapt to different product sizes and can operate under both vacuum and non-vacuum pressure. It has the advantages of being able to quickly adapt to the processing needs of products of different sizes, enabling rapid changeover to meet customers' needs for fast delivery, while saving delivery time and development costs. It solves the problems of existing fixtures being unable to adapt to multiple product sizes and the difficulty in flexibly switching between vacuum and non-vacuum pressure clamping methods.

[0005] To achieve the aforementioned goal of quickly adapting to the processing needs of products of different sizes, enabling rapid changeover to meet customers' demands for fast delivery, and saving delivery time and development costs, this utility model provides the following technical solution: a fixture adaptable to different product sizes and capable of both vacuum negative pressure and non-vacuum negative pressure, comprising an I-beam frame, a pad at the upper end of the I-beam frame, a carrier plate on the pad, a vacuum storage tank installed below the carrier plate, a chip-proof guard plate affixed to the carrier plate, a fixed first positioning block and a second positioning block at the upper edge of the chip-proof guard plate, and a sliding groove opened near the side of the upper edge of the chip-proof guard plate, within which a third positioning block is slidably installed.

[0006] Preferably, proximity switches are installed on the first positioning block, the second positioning block, and the third positioning block.

[0007] Preferably, the chip-proof guard plate has fixing holes with different spacing at its upper edge, and the first positioning block and the second positioning block are fixedly installed in the fixing holes.

[0008] Preferably, a vacuum tube connection assembly is provided below the vacuum storage tank.

[0009] Preferably, a vacuum negative pressure connector is fixed on the side wall of the vacuum storage tank.

[0010] Preferably, the chip-proof guard plate has a hollow structure. When it is attached to the carrier plate, the hollow structure and the surface of the carrier plate together enclose the product placement area.

[0011] Preferably, an annular groove is provided in the product placement area, and a sealing strip is provided in the annular groove.

[0012] Preferably, a clamping mechanism assembly is installed on the side of the carrier plate.

[0013] Preferably, there are three clamping mechanism components, one of which is fixed to one side of the carrier plate, and the other two are fixed to the adjacent sides of that side.

[0014] Preferably, there are two I-beam frames, which are symmetrically fixed to the ground.

[0015] Compared with the prior art, this utility model provides a clamp that can adapt to different product sizes and can operate under both vacuum and non-vacuum conditions, and has the following beneficial effects:

[0016] This fixture, adaptable to different product sizes and capable of both vacuum and non-vacuum negative pressure processing, can quickly adapt to the processing needs of products of different sizes by changing the positions of the first and second positioning blocks, sliding and adjusting the third positioning block, and adjusting the position of the clamping mechanism components, thus saving delivery time and development costs. It supports both vacuum and non-vacuum negative pressure processing methods to meet the processing needs of different products. The clamping mechanism components are interchangeable and universal, improving the utilization rate and flexibility of the fixture. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the clamp structure without vacuum negative pressure according to this utility model;

[0019] Figure 3 This is a schematic diagram of the vacuum negative pressure clamp structure of this utility model;

[0020] Figure 4 This is a top view of the vacuum negative pressure clamp structure of this utility model.

[0021] In the diagram: 1. I-beam frame; 2. Pad block; 3. Carrier plate; 31. Clamping mechanism assembly; 32. Vacuum storage tank; 33. Vacuum tube connection assembly; 34. Vacuum negative pressure connector; 4. Chip guard plate; 41. First positioning block; 42. Second positioning block; 43. Sliding groove; 44. Third positioning block; 45. Proximity switch; 46. Product placement area; 47. Sealing strip; 48. Fixing hole; 5. Product. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] like Figure 3As shown, a fixture adaptable to different product sizes (5) and capable of both vacuum negative pressure and non-vacuum negative pressure operation includes two I-beam frames 1, symmetrically fixed to the ground. A pad 2 is provided at the upper end of each I-beam frame 1, and a carrier plate 3 is mounted on the pad 2. A vacuum storage tank 32 is installed below the carrier plate 3. A chip-proof guard plate 4 is attached to the carrier plate 3. A first positioning block 41 and a second positioning block 42 are fixed at the upper edge of the chip-proof guard plate 4. A sliding groove 43 is opened near the side of the chip-proof guard plate 4, and a third positioning block 44 is slidably installed within the sliding groove 43. The I-beam frame 1 serves as the basic support structure of the fixture, its main function being to connect the machine tool and raise the fixture carrier plate 3. By rationally designing the height and position of the I-beam frame 1, it can be ensured that the machine tool can smoothly process the product 5 placed on the carrier plate 3, while maintaining the overall stability and rigidity of the fixture. The pad 2 is located between the I-beam frame 1 and the carrier plate 3, serving to support and adjust the height of the carrier plate 3. By increasing or decreasing the number of pads 2 or adjusting their thickness, the height and level of the carrier plate 3 can be finely adjusted to adapt to the processing requirements of different products 5, ensuring processing accuracy and product quality. The carrier plate 3 is the component in the fixture that directly supports the product 5 to be processed. Its surface is flat and has a certain strength and rigidity, capable of withstanding various forces and vibrations during processing. The carrier plate 3 is also equipped with positioning holes and sliding grooves 43, etc., to facilitate the installation and adjustment of positioning blocks to adapt to products 5 of different sizes and shapes. The vacuum storage tank 32 plays the role of maintaining and stabilizing the vacuum negative pressure in the fixture. When the fixture needs to process the product 5 using a vacuum negative pressure method, the vacuum storage tank 32 can store and release the vacuum negative pressure to ensure the stability of the vacuum degree during processing and prevent the processing quality from being affected by vacuum fluctuations. The main function of the chip guard plate 4 is to prevent aluminum chips, iron chips, and other debris generated during processing from accumulating on the surface of the carrier plate 3. If too much of these debris accumulates, it will not only affect the clamping and positioning accuracy of the product 5, but may also damage the processing tools. The chip guard plate 4 is typically made of an easy-to-clean material, facilitating quick removal of debris after machining and maintaining the cleanliness and efficient operation of the fixture. The first positioning block 41 and the second positioning block 42 are fixed components in the fixture used to position the product 5 in the X / Y directions of freedom. Through precise machining and installation, they ensure that the product 5 can be accurately placed in the predetermined position on the carrier plate 3, thereby guaranteeing machining accuracy and product 5 quality. These two positioning blocks are typically designed based on the common size and shape of the product 5 to accommodate the machining needs of most products 5. The sliding groove 43 and the third positioning block 44 are designed to further enhance the versatility and flexibility of the fixture. The sliding groove 43 allows the third positioning block 44 to slide freely within the groove, thereby adjusting its position according to the size and shape of different products 5. This design enables the fixture to adapt to the machining needs of more types and sizes of products 5 without replacing the entire fixture or making complex adjustments.The third positioning block 44 is also used to position the X / Y degree of freedom of product 5. Together with the first positioning block 41 and the second positioning block 42, it ensures the accuracy and stability of product 5 clamping.

[0025] like Figure 3 As shown, proximity switches 45 are installed on the first positioning block 41, the second positioning block 42, and the third positioning block 44. The proximity switches 45 can detect in real time whether the product 5 is correctly placed near the positioning block. When the product 5 approaches or contacts the positioning block, the proximity switch 45 will sense the presence of the product 5 and transmit the signal to the machine control system. By sensing whether the product 5 is clamped in place, the proximity switch 45 can prevent processing errors or equipment damage caused by the product 5 not being placed correctly, thereby improving processing accuracy and equipment safety. Traditional fixtures require manual confirmation of whether the product 5 is clamped in place, while the automated detection function of the proximity switch 45 can eliminate this step, reduce manual intervention, and improve production efficiency.

[0026] like Figure 3 As shown, the chip guard plate 4 has fixing holes 48 with different spacings along its upper edge. The first positioning block 41 and the second positioning block 42 are fixedly installed in the fixing holes 48. The fixing holes 48 with different spacings on the upper part of the chip guard plate 4 provide multiple installation position options for the first positioning block 41 and the second positioning block 42. This design allows the fixture to flexibly adjust the position of the positioning blocks according to the size and shape of different products 5, ensuring that the product 5 can be accurately and stably positioned. During the production process, when it is necessary to switch to processing products 5 of different sizes, the operator only needs to remove the positioning block from the current fixing hole 48 and reinstall it into the fixing hole 48 suitable for the new product 5. This quick switching function significantly improves production efficiency and reduces downtime. By selecting the appropriate fixing hole 48 to install the positioning block, a higher degree of matching between the positioning block and the contour of the product 5 can be ensured, thereby reducing positioning errors and improving processing accuracy.

[0027] like Figure 3 As shown, a vacuum tube connection assembly 33 is provided below the vacuum storage tank 32; when the processing of product 5 requires connection to a vacuum negative pressure device, the vacuum negative pressure device is connected; when product 5 is processed in a free state, the vacuum negative pressure device is not connected.

[0028] like Figure 3 As shown, a vacuum negative pressure connector 34 is fixed on the side wall of the vacuum storage tank 32; the vacuum negative pressure connector 34 is connected to the machine tool's vacuum negative pressure gauge, and the machine tool will not work when the working negative pressure of the fixture is less than the set negative pressure value of the fixture.

[0029] like Figure 4As shown, the chip guard plate 4 has a hollow structure. When it is attached to the carrier plate 3, the hollow structure and the surface of the carrier plate 3 together form a product placement area 46. An annular groove is provided in the product placement area 46, and a sealing strip 47 is provided in the annular groove.

[0030] like Figure 3 As shown, a clamping mechanism assembly 31 is installed on the side of the carrier plate 3; there are three clamping mechanism assemblies 31 in total, one of which is fixed to one side of the carrier plate 3, and the other two are fixed to the adjacent side of the same side; the three clamping mechanism assemblies 31 apply clamping force to the product 5 from one main side and two adjacent side of the carrier plate 3 respectively, using a cylinder as power, and using a wedge clamping mechanism to clamp the product 5 to ensure that the product 5 is stable and does not shift during the processing, thereby improving the processing accuracy and efficiency of the product 5.

[0031] Example 2

[0032] like Figure 1 and Figure 2 As shown, unlike the vacuum-capable clamp in Example 1, the clamp without vacuum pressure does not have a sealing strip 47, and all other components use the same standard.

[0033] Working principle: The product 5 to be processed is placed on the carrier plate 3, and the radial and axial degrees of freedom of the product 5 are positioned by the positioning block; the proximity switch 45 senses whether the product 5 is clamped in place and transmits the signal to the machine control system; the vacuum negative pressure device is activated as needed, and the vacuum is sealed by the sealing strip 47, and the product 5 is clamped by atmospheric pressure; the clamping mechanism assembly 31 is activated to clamp the product 5; the machine tool processes the product 5; after processing, the clamping mechanism assembly 31 is released and the product 5 is taken out.

[0034] In summary, this fixture, which can adapt to different product sizes and supports both vacuum and non-vacuum negative pressure processing, can quickly adapt to the processing requirements of products 5 of different sizes by changing the positions of the first positioning block 41 and the second positioning block 42, sliding and adjusting the third positioning block 44, and adjusting the position of the clamping mechanism assembly 31. This saves delivery time and development costs. It supports both vacuum negative pressure and non-vacuum negative pressure processing methods to meet the processing needs of different products 5. The clamping mechanism assembly 31 is interchangeable and universal, improving the utilization rate and flexibility of the fixture.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" 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 thereof 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. Without further limitations, 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 said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable vacuum and non-vacuum negative pressure clamp for different product sizes, comprising an I-shaped frame (1), a cushion block (2) is arranged at the upper end of the I-shaped frame (1), and a loading plate (3) is arranged on the cushion block (2), characterized in that: A vacuum storage tank (32) is installed below the carrier plate (3). A chip protection plate (4) is attached to the carrier plate (3). A first positioning block (41) and a second positioning block (42) are fixed at the upper edge of the chip protection plate (4). A sliding groove (43) is opened on the upper side of the chip protection plate (4). A third positioning block (44) is slidably installed in the sliding groove (43).

2. The vacuum and non-vacuum negative pressure adaptable fixture of claim 1, wherein: Proximity switches (45) are installed on the first positioning block (41), the second positioning block (42) and the third positioning block (44).

3. The vacuum and non-vacuum negative pressure adaptable fixture of claim 1, wherein: The chip guard plate (4) has fixing holes (48) with different spacings at the upper edge, and the first positioning block (41) and the second positioning block (42) are fixedly installed in the fixing holes (48).

4. The vacuum and non-vacuum negative pressure adaptable fixture of claim 1, wherein: The vacuum storage tank (32) is provided with a vacuum tube connection assembly (33) below it.

5. The vacuum and non-vacuum negative pressure adaptable fixture of claim 1 or 4, wherein: A vacuum negative pressure connector (34) is fixed on the side wall of the vacuum storage tank (32).

6. The vacuum and non-vacuum negative pressure adaptable fixture of claim 1, wherein: The chip protection plate (4) has a hollow structure. When it is attached to the carrier plate (3), the hollow structure and the surface of the carrier plate (3) together form a product placement area (46).

7. The vacuum and non-vacuum negative pressure adaptable fixture of claim 6, wherein: An annular groove is provided in the product placement area (46), and a sealing strip (47) is provided in the annular groove.

8. The vacuum and non-vacuum negative pressure adaptable fixture of claim 1, wherein: The carrier plate (3) is equipped with a clamping mechanism assembly (31) on its side.

9. The vacuum and non-vacuum negative pressure adaptable fixture of claim 8, wherein: There are three clamping mechanism components (31), one of which is fixed to one side of the carrier plate (3), and the other two are fixed to the adjacent side of that side.

10. The vacuum and non-vacuum negative pressure adaptable fixture of claim 1, wherein: There are two I-beam frames (1), which are symmetrically fixed to the ground.

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