A quick positioning and quick changing V-shaped tool structure

Abstract

The present application relates to the technical field of mechanical production and processing, in particular to a quick positioning and quick change V-shaped tool structure, which comprises a fixed plate, a V-shaped iron main body arranged on the fixed plate, and a supporting component, two accommodating cavities are arranged on the V-shaped iron main body, an avoiding groove is arranged between the two accommodating cavities, the supporting component is hinged in the accommodating cavity, a bolt one for adjusting the overturning angle of the supporting component is arranged on the avoiding groove, a chain is pressed and matched by a U-shaped iron driven by a bolt two through the lever principle, so as to realize the quick positioning of the parts, for eccentric shaft parts or stepped shaft parts, the corresponding adjustment of the part clamping height can be realized while the shaft center clamping precision is ensured, under the clamping action of the supporting component and the several supporting plates, even if the length of the shaft diameter change is short, the whole stable clamping positioning of the stepped shaft part can be realized, and the V-shaped tool structure has good universality and applicability.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing and processing technology, and in particular to a quick-positioning and quick-change V-shaped tooling structure. Background Technology

[0002] In the past, the positioning and fixing of shaft parts relied mainly on manual or semi-automatic methods. These methods were not only inefficient but also difficult to guarantee positioning accuracy. Especially in mass production environments, this inefficient and low-precision positioning method severely restricted the improvement of production efficiency. In addition, the disassembly of workpieces was also cumbersome, further increasing production time and costs.

[0003] For example, Chinese patent application number CN202222838115.0 discloses a quick clamping and positioning fixture for shaft parts, including a main body. The main body is provided with a positioning block and a pressure block. The pressure block is connected to the upper surface of the main body through a first spring. The positioning block is connected to the side of the main body through a translation mechanism. A V-shaped block is fixedly provided on the upper surface of the main body. The pressure block and the V-shaped block form a long shaft positioning part of the drive shaft. The positioning block is provided with a short shaft positioning part of the drive shaft. This provides a quick clamping and positioning fixture for shaft parts, which can quickly position the shaft during clamping and improve processing efficiency. However, in actual use, with the center clamping and correction method, the pressure block and V-shaped block can only position shaft parts with no change in shaft diameter. It cannot quickly position eccentric shaft parts, and correcting the shaft axis takes a lot of time. In addition, for stepped shaft parts, if the length of the shaft diameter change is short, the positioning block and pressure block cannot stably clamp the short area, resulting in very low clamping and correction efficiency. Summary of the Invention

[0004] In view of this, the purpose of this invention is to propose a fast positioning and quick-change V-shaped tooling structure to solve the technical problems of poor universality and applicability of existing technologies, inability to achieve fast positioning, unstable clamping, and low clamping and correction efficiency.

[0005] To achieve the above objectives, the present invention provides a quick-positioning and quick-change V-shaped tooling structure, including a fixed plate and a V-shaped iron body disposed on the fixed plate. The tooling structure further includes:

[0006] The support component has two receiving cavities on the V-shaped iron body, and a clearance groove is provided between the two receiving cavities on the V-shaped iron body. The support component is hinged in the receiving cavity, and a bolt for adjusting the flip angle of the support component is installed on the clearance groove.

[0007] There are two baffles, which are respectively bolted to both sides of the fixed plate;

[0008] A fixing hook is installed at the upper end of the baffle;

[0009] A positioning assembly is used to clamp a part to be positioned. The positioning assembly includes a chain and a U-shaped iron. The two ends of the chain are respectively hooked onto the fixing hooks on both sides. The main body of the V-shaped iron has mounting blocks on both sides, and bolts are installed on the mounting blocks. The U-shaped iron is movably mounted on the main body of the V-shaped iron. The bolts pass through the mounting blocks and abut against the top of the U-shaped iron. The main body of the V-shaped iron also has slots on both sides for the chain to pass through. The U-shaped iron cooperates with the fixing hooks to tighten the chain.

[0010] Furthermore, the supporting component is a plate-shaped structure with a chamfered lower part. The side of the plate-shaped structure near the hinge abuts against the bolt, and the upper supporting surface of the plate-shaped structure does not exceed the supporting surface of the V-shaped iron body.

[0011] Furthermore, the positioning component also includes a limiting cylinder and a top support plate. The surface of the limiting cylinder is a frustum-shaped structure connected in sequence. The limiting cylinder is installed on the connecting shaft of the chain. A connecting plate is adjustablely installed on two adjacent limiting cylinders. The top support plate is adjustablely installed on the other end of the connecting plate.

[0012] Furthermore, there are multiple top support plates, and the clamping ends of the multiple top support plates are all concave arc structures.

[0013] Furthermore, multiple top support plates are spaced apart on the chain.

[0014] Furthermore, the projections of the multiple top support plates in the horizontal direction remain consistent.

[0015] Furthermore, the width of the clamping end of the top support plate is smaller than the width of the chain.

[0016] The beneficial effects of this invention are as follows: By adopting a quick-positioning and quick-change V-shaped tooling structure, a supporting component and a positioning assembly are set on the V-shaped iron body. Utilizing the lever principle, the U-shaped iron is driven by bolt two to form a pressing fit with the chain, thereby achieving rapid positioning of the parts. For eccentric shaft parts or stepped shaft parts, the accuracy of shaft clamping can be guaranteed while the corresponding adjustment of the part clamping height can be achieved. Under the joint clamping action of the supporting component and several top support plates, even if the length of the shaft diameter change is short, the stepped shaft part can still be stably clamped and positioned as a whole, exhibiting good versatility and applicability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is an assembly diagram of some structures in this invention;

[0021] Figure 4 This is a schematic diagram of the assembly of the baffle and the fixing hook in this invention;

[0022] Figure 5 This is a schematic diagram of the assembly of some positioning components and chains in this invention;

[0023] Figure 6 A schematic diagram showing the state in which the part to be positioned is clamped and placed in this invention.

[0024] The diagram is marked as follows:

[0025] 1. Fixing plate; 2. V-shaped iron body; 3. Supporting component; 4. Receiving cavity; 5. Clearance groove; 6. Bolt 1; 7. Baffle; 8. Fixing hook; 9. Chain; 10. U-shaped iron; 11. Mounting block; 12. Bolt 2; 13. Groove; 14. Limiting cylinder; 15. Top support plate; 16. Connecting plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] This invention proposes a V-shaped tooling structure for quick positioning and quick change, such as... Figures 1 to 4 As shown, the fixture includes a fixed plate 1 and a V-shaped iron body 2 mounted on the fixed plate 1. The fixture structure also includes:

[0029] The support component 3 has two receiving cavities 4 on the V-shaped iron body 2. A clearance groove 5 is provided between the two receiving cavities 4 on the V-shaped iron body 2. The support component 3 is hinged in the receiving cavity 4. A bolt 6 for adjusting the flipping angle of the support component 3 is installed on the clearance groove 5.

[0030] There are two baffles 7, which are respectively bolted to both sides of the fixing plate 1;

[0031] Fixed locking hook 8 is installed on the upper end of baffle 7;

[0032] The positioning assembly is used to clamp the part to be positioned. The positioning assembly includes a chain 9 and a U-shaped iron 10. The two ends of the chain 9 are respectively hooked on the fixed locking hooks 8 on both sides. The two sides of the V-shaped iron body 2 are provided with mounting blocks 11, and bolts 12 are installed on the mounting blocks 11. The U-shaped iron 10 is movably mounted on the V-shaped iron body 2. The bolts 12 pass through the mounting blocks 11 and abut against the top of the U-shaped iron 10. The two sides of the V-shaped iron body 2 are also provided with slots 13 for the chain 9 to pass through. The U-shaped iron 10 cooperates with the fixed locking hooks 8 to tighten the chain 9. The slots 13 are correspondingly engaged with the worktable surface by slotted nuts to ensure that each disassembly and installation is in the same position without the need to correct the main body of the tooling structure.

[0033] In this embodiment, when used for positioning, the fixing plate 1 is fixed to the corresponding workbench surface by matching T-bolts to serve as a fixation on the processing equipment of the overall tooling structure. When processing shaft parts with no change in shaft diameter, simply place them gently in the middle of the V-shaped iron body 2 and ensure that the parts are in the correct position. Then, the semi-circular barb on the fixing hook 8 hooks and locks one end of the chain 9. The bolt 2 12 drives the U-shaped iron 10 to press against the chain 9 on that side to form a tension fixation. The other end of the chain 9 rotates freely, passes over the part, passes through the slot 13 on the other side, and is hooked and locked on the fixing hook 8 on that side. Using the lever principle, the bolt 2 12 on that side drives the U-shaped iron 10 to form a pressing fit on the chain 9 to achieve rapid positioning of the parts.

[0034] When machining and placing eccentric shaft-type parts, the eccentric clamping part is placed in the area that mates with the receiving cavity 4. Then, according to the eccentric direction of the shaft part's axis, the bolt 6 on the corresponding side is turned to push the support component 3 to rotate a certain angle within the receiving cavity 4, thereby pushing the shaft part to the position of the required axis machining accuracy.

[0035] In this embodiment, as Figure 1 , Figure 2 As shown, the support component 3 is a plate-shaped structure with a chamfered lower part. The side of the plate-shaped structure near the hinge rests against bolt 6. The upper support surface of the plate-shaped structure does not exceed the support surface of the V-shaped iron body 2. When the support surface of the plate-shaped structure of the support component 3 is inside the receiving cavity 4, it will not affect the support surface of the V-shaped iron body 2 on the part, ensuring the axial clamping accuracy. When the support surfaces of the plate-shaped structures of the two support components 3 are simultaneously outside the receiving cavity 4, the support surface of the V-shaped iron body 2 will not affect the support of the support component 3 on the part, ensuring the axial clamping accuracy while realizing the corresponding adjustment of the clamping height of the part.

[0036] In this embodiment, as Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the positioning assembly also includes a limiting cylinder 14 and a top support plate 15. The surface of the limiting cylinder 14 is a frustum-shaped structure connected in sequence. The limiting cylinder 14 is installed on the connecting shaft of the chain 9. A connecting plate 16 is adjustablely installed on two adjacent limiting cylinders 14. The top support plate 15 is adjustablely installed on the other end of the connecting plate 16. There are multiple top support plates 15. The clamping ends of the multiple top support plates 15 are all concave arc structures. The multiple top support plates 15 are spaced apart on the chain 9. When processing and placing stepped shaft parts, if the length of the shaft diameter change is short, clamping and positioning at this point requires the cooperation of the lower ends of the three top support parts on both sides.

[0037] For the upper part, the chain 9 needs to be used in reverse, that is, the clamping surface of the chain 9 on the side where the connecting plate 16 is installed is facing down. According to the specific size of the shaft diameter change, the installation height of the top support plate 15 on the connecting plate 16 is adjusted, and the corresponding position of the connecting plate 16 on the limiting cylinder 14 is adjusted so that the clamping surface of the top support plate 15 corresponds to the shaft diameter change.

[0038] Under the combined clamping action of the support component 3 and several top support plates 15, even if the length of the shaft diameter change is short, the overall stable clamping and positioning of the stepped shaft part can be achieved. It has good versatility and applicability, which can significantly improve processing efficiency and quality level, meet the needs of large-scale production. It adopts pneumatic or hydraulic drive, and the magnitude and direction of clamping force can be flexibly adjusted as needed to ensure that the part will not loosen or shift during processing, while achieving efficient and accurate positioning and fixing function.

[0039] The disassembly process can be completed with just a gentle push or pull, greatly saving time and labor costs and achieving efficient disassembly of shaft parts.

[0040] In this embodiment, as Figure 1 , Figure 5 As shown, the projections of the multiple top support plates 15 in the horizontal direction are consistent. Under the joint clamping of the multiple top support plates 15, the clamping force is evenly applied to the surface of the part, so that the tooling structure can also be used for clamping and positioning of tubular parts, avoiding local stress that could cause deformation of the tube.

[0041] In addition, preferred, such as Figure 5 , Figure 6 As shown, the width of the clamping end of the top support plate 15 is smaller than the width of the chain 9. The clamping end width is small enough that, under the premise of ensuring sufficient structural strength, it can be used for various types of eccentric shaft parts or stepped shaft parts.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0043] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A quick-positioning and quick-change V-shaped tooling structure, comprising a fixed plate (1) and a V-shaped iron body (2) disposed on the fixed plate (1), characterized in that, The tooling structure also includes: The support component (3) has two receiving cavities (4) on the V-shaped iron body (2), and a clearance groove (5) is provided between the two receiving cavities (4) on the V-shaped iron body (2). The support component (3) is hinged in the receiving cavity (4), and a bolt (6) for adjusting the flip angle of the support component (3) is installed on the clearance groove (5). There are two baffles (7), which are respectively bolted to both sides of the fixing plate (1); A fixing hook (8) is installed on the upper end of the baffle (7); A positioning assembly is used to clamp the part to be positioned. The positioning assembly includes a chain (9) and a U-shaped iron (10). The two ends of the chain (9) are respectively hooked onto the fixing hooks (8) on both sides. The V-shaped iron body (2) is provided with mounting blocks (11) on both sides. Bolts (12) are installed on the mounting blocks (11). The U-shaped iron (10) is movably mounted on the V-shaped iron body (2). The bolts (12) pass through the mounting blocks (11) and abut against the top of the U-shaped iron (10). The V-shaped iron body (2) is also provided with slots (13) on both sides for the chain (9) to pass through. The U-shaped iron (10) cooperates with the fixing hooks (8) to... Tighten the chain (9). The positioning component also includes a limiting cylinder (14) and a top support plate (15). The surface of the limiting cylinder (14) is a frustum-shaped structure connected in sequence. The limiting cylinder (14) is installed on the connecting shaft of the chain (9). A connecting plate (16) is adjustablely installed on two adjacent limiting cylinders (14). The top support plate (15) is adjustablely installed on the other end of the connecting plate (16). There are multiple top support plates (15). The clamping ends of the multiple top support plates (15) are all concave arc structures. The multiple top support plates (15) are spaced apart on the chain (9). The width of the clamping end of the top support plate (15) is smaller than the width of the chain (9).

2. The V-shaped tooling structure for quick positioning and quick change according to claim 1, characterized in that, The supporting component (3) is a plate-shaped structure with a chamfered lower part. The side of the plate-shaped structure near the hinge abuts against the bolt (6). The upper supporting surface of the plate-shaped structure does not exceed the supporting surface of the V-shaped iron body (2).

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