Four-corner positioning tool

Abstract

The utility model provides a four-corner positioning tool. In order to solve the technical problems of how to stably fix and position machining mechanism parts and particularly prevent the movement and vibration of the parts in the machining process. The utility model provides a four-corner positioning tool which comprises a frame-shaped base, a positioning device and a positioning device. The four clamping jaws are symmetrically distributed on the two sides of the fixing frame in pairs, two sets of jaw tips are oppositely arranged, and the bottoms of the clamping jaws are hinged to the fixing frame; the operation unit is similar to a slingshot frame structure and comprises a limiting frame; the two ends of one end of the limiting frame are hinged to one set of clamping jaws, and the inner side of the other end of the limiting frame abuts against the other set of clamping jaws in a sliding mode. The four-corner positioning tool is compact in design and easy to install, the rejection rate is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of processing, in particular to a four-corner positioning tool. BACKGROUND

[0002] In the processing industry such as metal, woodworking and machinery, in order to process components more accurately, positioning tools are usually used. With the continuous development of manufacturing industry, the requirements for processing precision and efficiency are also getting higher and higher. The conventional flat tongs combined with the cover plate of the processing platform can basically achieve the clamping and positioning of the components, but when processing special-shaped components, the traditional flat tongs combined with the cover plate of the processing platform cannot achieve “six-way positioning”. In the unstable positioning of the processing components, the processing components will move or follow the vibration of the platform equipment during the processing process, thereby affecting the processing precision, affecting the processing efficiency, and also increasing the processing cost. CONTENT OF THE UTILITY MODEL

[0003] One of the technical problems to be solved by the present disclosure is how to stably fix and position the processing components, especially to prevent the movement and vibration of the components during the processing process.

[0004] To solve the above technical problems, the present disclosure provides a four-corner positioning tool, which comprises:

[0005] A base, the base comprising a fixing frame;

[0006] Four clamping jaws, the four clamping jaws being symmetrically distributed on both sides of the fixing frame in pairs, the two sets of jaw tips being oppositely arranged, and the bottom of the clamping jaw being hinged to the fixing frame;

[0007] And an operation unit, the operation unit being similar to the bow frame structure of a bow and comprising a limiting frame;

[0008] Wherein, the two ends of the limiting frame are hinged to the middle and lower parts of one set of clamping jaws, and the inner side of the other end is in sliding abutment with the back of the other set of clamping jaws.

[0009] In some embodiments, the four clamping jaws are a first clamping jaw, a second clamping jaw, a third clamping jaw and a fourth clamping jaw, wherein the first clamping jaw and the second clamping jaw are a first set of clamping jaws and have the same structure, and the third clamping jaw and the fourth clamping jaw are a second set of clamping jaws and have the same structure.

[0010] In some embodiments, the first set of clamping jaws is hinged to the limiting frame, and the second set of clamping jaws is provided with a limiting part, and the structure of the limiting part is matched with the structure of the inner side of the limiting frame.

[0011] In some embodiments, a roller shaft is installed inside the limiting frame, and the structure of the limiting part is an arc shape matched with the roller shaft.

[0012] In some embodiments, the bottom of each of the four clamping jaws is provided with an axle hole, and the fixed frame is also provided with an axle hole at a position corresponding to the clamping jaw, and the axle passes through the axle holes of the clamping jaw and the fixed frame to realize the hinging of the clamping jaw and the fixed frame.

[0013] In some embodiments, the first clamping jaw and the second clamping jaw are provided with axle holes, and the end of the limiting frame is also provided with an axle hole at a position corresponding to the first group of clamping jaws, and the axle passes through the axle holes of the limiting frame and the first group of clamping jaws to realize the hinging of the first group of clamping jaws and the limiting frame.

[0014] In some embodiments, the operation unit further comprises a handle connected to the limiting frame to operate the movement of the limiting frame.

[0015] In some embodiments, the structures of the first group of clamping jaws and the second group of clamping jaws can be the same or different.

[0016] In some embodiments, the end of the axle is clamped by a snap spring.

[0017] In some embodiments, the base is detachably connected to the platform.

[0018] Through the above technical solution, the four-corner positioning tool provided by the present disclosure is designed to be compact and easy to install, can quickly clamp and disassemble the machining member, and can provide stable position limitation for the machining member through the four clamping jaws to effectively prevent the movement and vibration of the machining member. The four clamping jaws uniformly apply external force to the machining member, which can reduce the risk of deformation of the machining member, reduce the scrap rate, and improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is a structural schematic diagram of the four-corner positioning tool disclosed by the embodiments of the present disclosure.

[0021] Explanation of reference signs:

[0022] 1, platform; 2, four-corner positioning tool; 21, base; 211, fixed frame; 221, handle; 222, limiting frame; 230, limiting part; 231, first clamping jaw; 232, second clamping jaw; 233, third clamping jaw; 234, fourth clamping jaw; 24, axle; 25, snap spring. DETAILED DESCRIPTION

[0023] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are provided for the purpose of illustrating the principles of the present disclosure, and are not intended to limit the scope of the present disclosure, which can be embodied in a variety of different forms, not limited to the specific examples disclosed herein, but include all technical solutions falling within the scope of the claims.

[0024] The present disclosure provides these examples in order to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0025] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0027] It should also be noted that, in the description of the present disclosure, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0028] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0030] like Figure 1 A four-corner positioning fixture is shown, comprising: a base 21, the base 21 including a fixing frame 211; four grippers, the four grippers being symmetrically distributed in pairs on both sides of the fixing frame 211, the tips of the two pairs of grippers facing each other, and the bottom of the grippers being hinged to the fixing frame 211; and an operating unit, the operating unit resembling a slingshot frame structure, including a limiting frame 222; wherein, the two ends of the limiting frame 222 are hinged to the lower middle part of one pair of grippers, and the inner side of the other end slides against the back of the other pair of grippers.

[0031] like Figure 1 As shown, the base 21 is mounted on the platform 1, which can be a lathe, milling machine, or other processing equipment platform. The base 21 includes two stepped surface structures: a bottom stepped surface and an upper stepped surface. The bottom stepped surface of the base 21 is used to mount the four corner positioning fixtures onto the platform 1. The upper stepped surface is a fixing frame 211, which is mounted on the bottom stepped surface. In some embodiments, the stepped surface of the fixing frame 211 is higher than the bottom stepped surface of the base 21 to provide space for the installation of the grippers.

[0032] Specifically, the four-corner positioning fixture 2 is equipped with four grippers, which are arranged in pairs to form two groups. The two grippers in each group are symmetrically distributed, and the tips of the grippers in the two groups face each other to limit the movement of the processed components. It should be noted that the fixing frame 211 is a frame structure, and the two groups of grippers are respectively hinged to the fixing frame 211 through hinges. In some embodiments, the grippers are hinged to the outer side of the frame structure of the fixing frame 211.

[0033] The four-corner positioning fixture 2 is also equipped with an operating unit, which can achieve stable positioning of the four grippers on the workpiece. For example... Figure 1In the shown embodiment, the structure of the operating unit is similar to the bow of a bow and arrow, and the limiting frame 222 of the operating unit is used for limiting the position of the four clamping jaws. The open end of the limiting frame 222 has two end portions, and the two end portions are respectively hinged to two symmetrical clamping jaws close to the two end portions. The other end of the limiting frame 222 is in sliding abutment with the other two symmetrical clamping jaws, so that under the pushing action of an external force, the limiting frame 222 can slide outside the clamping jaws and finally slide to a suitable position to be clamped, so that one end of the limiting frame 222 is hinged to the two clamping jaws, and the other end is clamped to the two clamping jaws on the inner side, thereby stably limiting the four clamping jaws.

[0034] In some embodiments, the four clamping jaws are a first clamping jaw 231, a second clamping jaw 232, a third clamping jaw 233, and a fourth clamping jaw 234. The first clamping jaw 231 and the second clamping jaw 232 are a first group of clamping jaws and have the same structure, and the third clamping jaw 233 and the fourth clamping jaw 234 are a second group of clamping jaws and have the same structure.

[0035] It should be noted that the first clamping jaw 231 and the second clamping jaw 232 are a first group of clamping jaws and have the same structure, and the first clamping jaw 231 and the second clamping jaw 232 are symmetrically distributed on the outer side of the fixed frame 211. The third clamping jaw 233 and the fourth clamping jaw 234 are a second group of clamping jaws and have the same structure, and the third clamping jaw 233 and the fourth clamping jaw 234 are symmetrically distributed on the outer side of the fixed frame 211.

[0036] In some embodiments, the first group of clamping jaws is hinged to the limiting frame 222, and the second group of clamping jaws is provided with a limiting portion 230, and the structure of the limiting portion 230 is matched with the structure on the inner side of the limiting frame 222.

[0037] In order to better realize the stable limiting of the limiting frame 222 and the four clamping jaws, the limiting portion 230 is arranged in the area close to the inner side of the limiting frame 222 of the second group of clamping jaws in sliding abutment with the inner side of the limiting frame 222, as shown in the figure. Figure 1 The limiting portion 230 is matched with the structure on the inner side of the limiting frame 222, so that when the inner side of the limiting frame 222 is in abutment with the limiting portion 230, it can be clamped more stably.

[0038] In some embodiments, a roller 24 is installed inside the limiting frame 222, and the structure of the limiting portion 230 is an arc shape matched with the roller 24.

[0039] In order to further improve the stable positioning of the limiting frame 222 and the four clamping jaws, a roller 24 is installed at the inner side of the limiting frame 222, and the limiting portion 230 is correspondingly structured as an arc shape matched with the roller 24. Under the pushing of external force, the limiting frame 222 is pushed upward to the area of the arc-shaped limiting portion 230, and the limiting frame 222 stably positions the four clamping jaws. The roller 24 arranged at the inner side of the limiting frame 222 can reduce the friction between the limiting frame 222 and the clamping jaws, making the pushing operation more convenient and improving the clamping and dismounting efficiency of the four-corner positioning tool 2. After the machining of the to-be-machined component is completed, the limiting frame 222 is slid along the back of the second group of clamping jaws to the bottom by using external force, so as to release the pressure of the four clamping jaws and facilitate the taking out of the machined component.

[0040] In some embodiments, the bottom of each of the four clamping jaws is provided with an axle hole, and the fixed frame 211 is also provided with an axle hole at the position corresponding to the clamping jaw. The roller 24 passes through the axle holes of the clamping jaw and the fixed frame 211 to realize the hinging of the clamping jaw and the fixed frame 211.

[0041] In order to further improve the clamping and dismounting efficiency of the four-corner positioning tool 2, the hinging of the clamping jaw and the fixed frame 211 is realized by arranging the roller 24. Specifically, as shown in the embodiment of Figure 1 the bottom of each of the four clamping jaws, the fixed frame 211 and the position corresponding to the clamping jaw are all provided with an axle hole for installing the roller 24. When installing the roller 24, taking the hinging of the first group of clamping jaws and the fixed frame 211 as an example, the roller 24 is sequentially passed through the axle hole of the first clamping jaw 231, the axle hole of the front side of the fixed frame 211, the axle hole of the second clamping jaw 232 and the axle hole of the rear side of the fixed frame 211. Thus, the hinging of the first group of clamping jaws and the fixed frame 211 is realized. The hinging of the first group of clamping jaws and the fixed frame 211 realized by the roller 24 improves the opening and closing efficiency of the four clamping jaws and the fixed frame 211, making the clamping and dismounting of the four-corner positioning tool 2 more convenient.

[0042] In some embodiments, the first clamping jaw 231 and the second clamping jaw 232 are provided with an axle hole, and the end of the limiting frame 222 is also provided with an axle hole at the position corresponding to the first group of clamping jaws. The roller 24 passes through the axle holes of the limiting frame 222 and the first group of clamping jaws to realize the hinging of the first group of clamping jaws and the limiting frame 222.

[0043] As shown in the embodiment of Figure 1 the middle and lower position areas of the first clamping jaw 231 and the second clamping jaw 232 are provided with a second axle hole, and the two open ends of the limiting frame 222 are also provided with an axle hole at the position corresponding to the first group of clamping jaws. The roller 24 is installed in the first group of clamping jaws and the two open ends of the limiting frame 222 through the axle hole, thereby realizing the hinging of the first group of clamping jaws and the limiting frame 222. The installation of the roller 24 can provide wear resistance between the limiting frame 222 and the first group of clamping jaws, thereby improving the connection life of the limiting frame 222 and the first group of clamping jaws.

[0044] In some embodiments, the operating unit further includes a handle 221, which is connected to the limiting frame 222 to operate the limiting frame 222 to move.

[0045] In order to better apply external force to the limit frame 222, a handle 221 is connected to the end of the limit frame 222. The handle 221 makes it easier to move the limit frame 222 and makes it more operable to move the limit frame 222 up and down.

[0046] In some embodiments, the structures of the first set of grippers and the second set of grippers may be the same or different.

[0047] like Figure 1 In the illustrated embodiment, the structures of the first set of grippers and the second set of grippers can be different. The second set of grippers is provided with a limiting part 230 to better abut against the limiting frame 222, and the bottom is also designed with an arc curve for better aesthetics. The structure of the first set of grippers is simpler, requires less material, and can save material costs. The structures of the first set of grippers and the second set of grippers can be the same, and both can adopt the same structure as the second set of grippers. When producing grippers, only one mold needs to be made, which can reduce the mold opening cost of production.

[0048] In some embodiments, the end of the roller 24 is engaged with a retaining ring 25.

[0049] In order to ensure a direct and stable rolling connection between the roller 24 and the gripper, the fixing frame 211, and the limiting frame 222, after the roller 24 is installed with the gripper, the fixing frame 211, and the limiting frame 222, snap rings 25 are used at both ends of the roller 24 to lock and limit its movement, which can prevent the roller 24 from shifting within the shaft hole.

[0050] In some embodiments, the base 21 is fitted onto the platform 1 and is detachably connected to the platform 1.

[0051] To facilitate the installation of the four-corner positioning fixture 2 onto the platform 1 of various processing equipment, the base 21 is fitted onto the platform 1 before installation. It should be noted that the frame structure of the base 21 must be compatible with the external structure of the platform 1 for more stable installation. The detachable connection between the base 21 and the platform 1 allows for easy disassembly and replacement of components after processing using the four-corner positioning fixture 2.

[0052] The four-corner positioning tool 2 of the present application oppositely arranges the claw tips of the four clamping claws, and the handle 221 can push the limiting frame 222 to move up and down, so as to clamp and disassemble the processing component by the four clamping claws. The connection of the clamping claws, the fixing frame and the limiting frame is realized by the roller 24, thereby forming a sliding link structure, which is simple to install and convenient to operate, improves the clamping and disassembling operation of the processing component, and enables the processing component to be stably positioned on the platform 1 for processing, thereby improving the processing precision and processing efficiency.

[0053] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0054] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A four corner locating fixture, characterized by, The utility model relates to a kind of platform (1) and its base (21), including: Base (21), the base (21) includes fixing frame (211); Four clamping jaws, four the clamping jaws are symmetrically distributed in two groups in the two sides of the fixing frame (211), two groups of claw tips are oppositely arranged, and the bottom of the clamping jaw is hinged with the fixing frame (211); And operating unit, the operating unit is similar to the bow frame structure of bow, including limiting frame (222); Wherein, the limiting frame (222) end portion is hinged with the middle lower part of one group of the clamping jaw at two ends, and the inner side of the other end is slidably abutted with the back of another group of the clamping jaw.

2. The four corner locating fixture of claim 1 wherein, Four the clamping jaws are first clamping jaw (231), second clamping jaw (232), third clamping jaw (233) and fourth clamping jaw (234), wherein the first clamping jaw (231) and the second clamping jaw (232) are first group of clamping jaws and are same in structure, and the third clamping jaw (233) and the fourth clamping jaw (234) are second group of clamping jaws and are same in structure.

3. The four corner locating fixture of claim 2 wherein, The first group of clamping jaws is hinged with the limiting frame (222), and the second group of clamping jaws is provided with limiting portion (230), and the structure of the limiting portion (230) is matched with the structure of the inner side of the limiting frame (222).

4. The four corner locating fixture of claim 3 wherein, Rolling shaft (24) is installed inside the limiting frame (222), and the structure of the limiting portion (230) is arc-shaped matched with the rolling shaft (24).

5. The four corner locating fixture of claim 1 wherein, The bottom of four the clamping jaws is provided with shaft hole, and the corresponding position of the fixing frame (211) is also provided with shaft hole, and the rolling shaft (24) passes through the shaft hole of the clamping jaw and the fixing frame (211), so that the clamping jaw is hinged with the fixing frame (211).

6. The four corner locating fixture of claim 2 wherein, The first clamping jaw (231) and the second clamping jaw (232) are provided with shaft hole, and the end of the limiting frame (222) is also provided with shaft hole corresponding to the first group of clamping jaws, and the rolling shaft passes through the shaft hole of the limiting frame (222) and the first group of clamping jaws, so that the first group of clamping jaws and the limiting frame (222) are hinged.

7. The four corner locating fixture of claim 1 wherein, The operating unit further includes handle (221), and the handle (221) is connected with the limiting frame (222) to operate the movement of limiting frame (222).

8. The four corner locating fixture of claim 2 wherein, The structure of the first group of clamping jaws and the second group of clamping jaws can be same or different.

9. The four corner locating fixture of any of claims 4-6, wherein, The end of the rolling shaft (24) is clamped using a snap spring (25).

10. The four corner locating fixture of claim 1 wherein, The base (21) is sleeved on the platform (1) and detachably connected with the platform (1).

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