Plate type combined clamp

Abstract

The invention relates to the technical field of tool jigs, in particular to a plate type combined clamp, a whole large plate is disassembled into a plurality of small miniature plates, the small miniature plates are arranged according to the sizes and characteristics of parts and tightly connected through connecting pieces in a pulling mode, and each small miniature plate comprises a basic module, a positioning module and a lifting appliance locking block. According to the invention, a new tool bottom plate is not needed, the required tool can be quickly assembled according to a drawing only by placing the drawing according to the design, and when not in use, the tool can be quickly disassembled and combined into tools required by other projects, so that the standardization, modularization and universality of the tool are really realized, the tool can be randomly assembled and recycled, the traditional special tool plate is completely replaced, and the production cost is reduced. In the first workpiece development stage, the machining period can be shortened in an assisting mode, and the tool and jig cost is saved. And in addition, splicing and using are flexible, dismounting and replacing are convenient and fast, and the two clamping modes of forward handle and reverse handle are achieved.

Description

Technical Field

[0001] This invention relates to the field of tooling and fixture technology, specifically to a plate-type combination fixture. Background Technology

[0002] Currently, the machining industry generally requires tooling plates during the initial sample production stage. In this stage, customers prioritize delivery time, directly impacting the tooling manufacturing cycle. Furthermore, customers rarely pay for tooling during the initial sample stage; in some cases, the cost of a custom-made tooling is even lower than the initial order cost. Therefore, the manufacturing cycle and cost of tooling become the biggest challenges in the initial sample stage. The uncertainty of orders after sample production can lead to wasted tooling costs. Even in mass production, excess dedicated tooling can cause waste. Dedicated tooling plates suffer from poor versatility and high cost. As a core component of tooling, the tooling plate is an indispensable part. Whether it's a large, modular tooling or a simple single-plate tooling, it consists of plates and other fastening components, making the tooling plate consistently the most expensive component. Some tooling is used infrequently, occupying inventory space most of the time. However, it's uncertain when it might be needed, so it can't be scrapped. This results in a large amount of tooling not only taking up inventory space but also significantly increasing a company's manufacturing costs. The core of tooling is actually the tooling base plate. Even the most complex tooling design is simply installing some clamping mechanisms and accessories on the base plate. This shows that the most expensive component in tooling manufacturing is the tooling plate. If the tooling plate can be reused or 100% universal, it represents a significant cost saving for a company, both in terms of cost and quantity, and will help the company gain a competitive advantage in the first-piece manufacturing stage. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a plate-type combination clamp.

[0004] The specific technical solution is as follows: A plate-type combination fixture is used to clamp parts. The fixture is made by disassembling a large plate into multiple micro-plates. The micro-plates are arranged according to the size and characteristics of the parts and are tightly connected by connectors. Each micro-plate includes a base block, a positioning block, and a lifting lock block. The base block includes a square base block A and a square base block B, as well as corner blocks with beveled angles. The straight edges of the sides are arbitrarily spliced ​​together by connectors. Base blocks A and B are used to connect other micro-plates. The corner blocks are installed at the four corners of the fixture. The positioning block includes a positioning block, a center block, an eccentric block, a filler block A, and a filler block B. The front and back surfaces of the positioning block and the eccentric block are respectively provided with positioning pin holes and zero-point mounting holes for positioning the parts on the fixture plate and installing zero points. Filler block A, center block A, and filler block B are used to adjust the size of the fixture plate.

[0005] The connector includes an I-shaped key and a T-slot. The T-slot is formed on the four sides of the base block and the positioning block and is matched and inserted with half of the I-shaped key.

[0006] The base block A, base block B, positioning block, and eccentric block are all cubes with dimensions of 100mm*100mm*40mm; the corner block is a cube with dimensions of 100mm*100mm*40mm and one corner has a 45° bevel; the size of the filling block A, center block, and filling block B is less than or equal to 100mm*100mm and can be adjusted to a distance of whole 100mm or whole 50mm.

[0007] Straight waist-shaped grooves and 45° inclined waist-shaped grooves are respectively opened on the front and back surfaces of the base block A and base block B.

[0008] It also includes quick-change nuts, with strong magnets installed at the ends of the quick-change nuts, which self-adhere to the straight waist-shaped grooves and 45° inclined waist-shaped grooves of base block A and base block B. A gasket is added between the quick-change nuts and the straight waist-shaped grooves and 45° inclined waist-shaped grooves.

[0009] It also includes a lifting device locking block, one end of which has a locking key that engages with the T-slots on the sides of base block A and base block B to tighten them.

[0010] All the miniature boards are precision ground, and the overall flatness and parallelism of the assembled tooling board are ≤0.02mm, and the cumulative error of length and width after assembly is ≤0.02mm.

[0011] The I-key and T-slot are interference fit.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: This invention utilizes basic assembly blocks connected by locking keys to arbitrarily combine them into a tooling base plate component, which can be applied to various machining fixture combinations or used independently as a tooling base plate. During the digital model programming stage, users can import the basic tooling component model according to the part's outline dimensions and clamping position, and quickly design the required tooling by placing it in any position.

[0013] The advantages of this design are: (1) No new tooling base plate is required. Only the design drawing needs to be laid out. The operator can quickly assemble the required tooling according to the drawing. Moreover, when not in use, it can be quickly disassembled and combined into tooling required for other projects. It truly realizes the standardization and modular universality of tooling. It can be arbitrarily spliced ​​and used infinitely. It completely replaces the traditional special tooling plate and realizes zero tooling cost. In the first piece development stage, it can help shorten the processing cycle and save tooling and fixture costs; (2) It is flexible in assembly and use, convenient for quick disassembly and replacement, and has two clamping methods: positive and negative handles. Among them, the basic assembly block is equipped with a zero point interface, which can be installed as an external clamping tooling. When used with the pneumatic zero point plate, it can realize a fast positioning and efficient clamping mode; (3) It can be disassembled and stored in pieces, saving floor space. It has strong variability and high reusability. It can be used as a universal tooling base plate, which greatly saves tooling manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembly of the combined fixture of the present invention; Figure 2 This is an exploded view of the combined clamp of the present invention; Figure 3 This is a schematic diagram of the connector of the present invention; Figure 4 for Figure 3 Longitudinal section view; Figure 5 This is a schematic diagram illustrating the use of the combined fixture of the present invention; In the diagram, 1. Basic block; 11. Basic block A; 12. Basic block B; 13. Corner block; 2. Positioning block; 21. Positioning block; 22. Center block; 23. Eccentric block; 24. Filler block A; 25. Filler block B; 3. Lifting device locking block; 31. Locking key; 4. I-beam key; 5. T-slot; 6. Quick-change nut; 7. Washer; 8. Parts. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings, but the scope of protection of the present invention is not limited by the drawings.

[0016] Figure 1 This is a schematic diagram of the assembly of the combined fixture of the present invention. Figure 2 This is an exploded view of the combined clamp of the present invention. Figure 3This is a schematic diagram of the connector of the present invention. Figure 4 for Figure 3 The longitudinal section is shown in the figure: This invention relates to a plate-type combination fixture for clamping part 8. The fixture is constructed by disassembling a large single plate into multiple miniature plates. These miniature plates are arranged according to the size and characteristics of part 8 and tightly connected by connectors. Each miniature plate includes a base block 1, a positioning block 2, and a lifting lock block 3. The base block 1 includes square base blocks A11 and B12, and corner blocks 13 with beveled angles. The straight edges of the sides are arbitrarily joined by connectors. Base blocks A11 and B12 are used to connect other miniature plates. Corner blocks 13 are installed at the four corners of the fixture to prevent injury from sharp edges. The size of the assembled module 1 is unlimited, and it is easy to disassemble and store when not in use. It can be used infinitely and spliced ​​arbitrarily, completely replacing the special tooling plate and achieving "0" tooling cost. The positioning module 2 includes positioning block 21, center block 22, eccentric block 23, filler block A24 and filler block B25. Positioning block 21 and eccentric block 23 have positioning pin holes and zero point mounting holes on their front and back surfaces, respectively, for positioning parts on the tooling plate and installing zero points. Filler block A24, center block 22 and filler block B25 are used to adjust the size of the tooling plate and can switch the positioning hole distance from the whole number 100 or the whole number 50. The connector includes an I-beam key 4 and a T-slot 5. The T-slot 5 is formed on the four sides of the base block 1 and the positioning block 2, and is inserted into half of the I-beam key 4. The I-beam key 4 and the T-slot 5 adopt an interference fit to ensure that the connection rigidity of the two adjacent base blocks meets the usage requirements. After connection, the sides of the two base blocks are completely fitted, so that the force-bearing surface is pressed on the side of the base block instead of the key. This design ensures good rigidity in the tooling plate after assembly, preventing bending deformation during hoisting, handling, or suspended use.

[0017] Base block A11, base block B12, positioning block 21, and eccentric block 23 are all cubes with dimensions of 100mm x 100mm x 40mm. Corner block 13 is a cube with dimensions of 100mm x 100mm x 40mm and one corner has a 45° bevel. Filler block A24, center block 22, and filler block B25 are 100mm x 100mm in size and can be adjusted to whole 100mm or 50mm intervals. Straight waist-shaped grooves and 45° bevel-shaped grooves are respectively formed on the front and back surfaces of base block A11 and base block B12. This facilitates positive or negative pressure application to the part, following its shape.

[0018] It also includes a quick-change nut 6, with a strong magnet installed at one end, which self-attaches to the straight and 45° inclined slots of base blocks A11 and B12. It is not easily dislodged during movement along the slots, facilitating easy positioning and providing a threaded connection. A washer 7 is added between the quick-change nut 6 and the straight and 45° inclined slots. It also includes a lifting device locking block 3, with a locking key 31 at one end. This lock engages with the T-slots 5 on the sides of base blocks A11 and B12 to tighten them, ensuring safe lifting without damaging the T-slots on the sides of the base blocks.

[0019] All the aforementioned miniature boards are precision ground, and the overall flatness and parallelism of the assembled tooling board are ≤0.02mm, and the cumulative error of length and width after assembly is ≤0.02mm.

[0020] Figure 5 This is a schematic diagram illustrating the use of the combined fixture of the present invention. As shown in the figure, during use, the user can import the model of the tooling microplate according to the outline dimensions and clamping position of part 8 during the digital model programming stage, and quickly design the layout diagram of the required tooling microplate. The operator can then quickly assemble the required tooling according to the drawing to clamp part 8. When not in use, it can be quickly disassembled and reassembled into tooling required for other projects.

Claims

1. A plate-type combination clamp, characterized in that: Used for clamping part (8), the clamp is a large whole plate disassembled into multiple micro plates, the multiple micro plates are arranged according to the size and characteristics of part (8) and tightly connected by connectors; the micro plates include a base block (1), a positioning block (2) and a lifting lock block (3); the base block (1) includes a square base block A (11) and a base block B (12), and a corner block (13) with an angled corner, the straight edges of the side are arbitrarily spliced ​​by connectors, base block A (11) and base block B (12) Used to connect other miniature boards, corner blocks (13) are installed at the four corners of the tooling; the positioning block (2) includes positioning block (21), center block (22), eccentric block (23), filler block A (24) and filler block B (25). Positioning pin holes and zero-point mounting holes are respectively opened on the front and back surfaces of positioning block (21) and eccentric block (23) for positioning part (8) on the tooling plate and installing zero point. Filler block A (24), center block (22) and filler block B (25) are used to adjust the size of the tooling plate.

2. The plate-type combination fixture according to claim 1, characterized in that: The connector includes an I-shaped key (4) and a T-shaped groove (5). The T-shaped groove (5) is opened on the four sides of the base block (1) and the positioning block (2) and is matched and plugged into half of the I-shaped key (4).

3. The plate-type combination fixture according to claim 1, characterized in that: The base block A (11), base block B (12), positioning block (21) and eccentric block (23) are all cubes with a length, width and height of 100mm*100mm*40mm; the corner block (13) is a cube with a length, width and height of 100mm*100mm*40mm and one corner has a 45° bevel; the size of the filling block A (24), center block (22) and filling block B (25) is less than or equal to 100mm*100mm and can be adjusted to a distance of whole 100 or whole 50mm.

4. The plate-type combination fixture according to claim 1, characterized in that: Straight waist-shaped grooves and 45° inclined waist-shaped grooves are respectively opened on the front and back surfaces of the base block A (11) and base block B (12).

5. The plate-type combination fixture according to claim 4, characterized in that: It also includes a quick-change nut (6), with a strong magnet installed at the end of the quick-change nut (6), which is self-adsorbed in the straight waist-shaped groove and the 45° inclined waist-shaped groove of the base block A (11) and the base block B (12). A gasket (7) is added between the quick-change nut (6) and the straight waist-shaped groove and the 45° inclined waist-shaped groove.

6. The plate-type combination fixture according to claim 1, characterized in that: It also includes a lifting device locking block (3), one end of which has a locking key (31) that engages with the T-slots (5) on the sides of the base block A (11) and the base block B (12) to tighten it.

7. The plate-type combination fixture according to claim 1, characterized in that: All the miniature boards are precision ground, and the overall flatness and parallelism of the assembled tooling board are ≤0.02mm, and the cumulative error of length and width after assembly is ≤0.02mm.

8. The plate-type combination fixture according to claim 1, characterized in that: The I-key (4) and the T-slot (5) are interference fit.

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