Quick-change type positioning tool

Abstract

The utility model discloses a quick-change type positioning tool, and relates to the technical field of positioning tools, the quick-change type positioning tool comprises a base, a quick-change core shaft and a positioning plate, one side of the base is fixed on a workbench, and the upper surface of the base is provided with a positioning spigot; the quick-change mandrel is vertically mounted in the positioning spigot of the base, and a plurality of second positioning pin holes which are vertically and uniformly distributed are formed in the top of the quick-change mandrel; a plurality of first positioning pin holes which are uniformly distributed are formed in one side of the positioning plate, the first positioning pin holes correspond to the second positioning pin holes in position, cylindrical positioning pins are arranged in the first positioning pin holes in an inserted mode, and the cylindrical positioning pins are suitable for fixing the positioning plate to the quick-change mandrel. The quick-change type positioning tool is suitable for machining various products, different products can be machined only by replacing the corresponding quick-change mandrel, and the quick-change type positioning tool is simple in structure and convenient and fast to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning frock technical field, concretely relates to a quick change positioning frock. BACKGROUND

[0002] For a long time, the machining industry mainly carries out processing production and manufacture in single station, and this mode is not only low in efficiency, but also needs to find the center manually when using the traditional correction clamp to process, so that a lot of time is wasted after clamping, and the operation level of personnel is required to be high. INVENTION CONTENTS

[0003] Therefore, in order to solve the defects of the above-mentioned technology, the utility model provides a quick change positioning frock.

[0004] The utility model provides a quick change positioning frock, which comprises:

[0005] A base is fixed on one side of a workbench, and a positioning stop is formed on the upper surface of the base;

[0006] A quick change mandrel is vertically installed in the positioning stop of the base, and a plurality of vertically distributed second positioning pin holes are formed in the top of the quick change mandrel;

[0007] A positioning plate is provided with a plurality of uniformly distributed first positioning pin holes on one side, the first positioning pin holes correspond to the second positioning pin holes in position, and a cylindrical positioning pin is arranged in the first positioning pin holes, and the cylindrical positioning pin is suitable for fixing the positioning plate on the quick change mandrel.

[0008] Preferably, the utility model further comprises:

[0009] A first connecting piece is suitable for being fixedly connected between the positioning plate and the quick change mandrel;

[0010] A second connecting piece is suitable for being fixedly connected between the quick change mandrel and the base.

[0011] Preferably, the utility model further comprises a third connecting piece, which is suitable for being fixedly connected between the base and the workbench.

[0012] Preferably, the first connecting piece is a third locking screw, a third countersunk hole is formed in the center of the first positioning pin hole on the positioning plate, the bottom of the third countersunk hole extends to the quick change mandrel, and the third locking screw is suitable for being threadedly connected in the third countersunk hole to fix the positioning plate and the quick change mandrel.

[0013] Preferably, the second connecting piece is a second locking screw, the base is provided with a second countersunk hole vertically penetrating upwards opposite the positioning stop, and the top of the second countersunk hole extends to the quick-change core shaft, and the second locking screw is suitable for being threadedly connected in the second countersunk hole to fix the quick-change core shaft and the base.

[0014] Preferably, the third connecting piece is a first locking screw, a side of the base is provided with a plurality of first countersunk holes vertically penetrating, and the first locking screw is suitable for being threadedly connected in the first countersunk hole to fix the base and the workbench.

[0015] Preferably, the diameter of the first positioning pin hole is not less than the diameter of the second positioning pin hole.

[0016] Preferably, the number of the cylindrical positioning pins is not less than two.

[0017] Preferably, the size of the positioning stop is greater than the horizontal cross-sectional size of the quick-change core shaft.

[0018] Compared with the prior art, the quick-change positioning tool has at least the following beneficial effects:

[0019] The quick-change positioning tool in the utility model is composed of a base, a quick-change core shaft and a positioning plate, wherein the upper surface of the base is provided with a positioning stop, which provides a precise installation positioning reference surface for the quick-change core shaft; the pin hole positioning mode utilizes the high-precision cooperation of the cylindrical positioning pins, can accurately limit the degrees of freedom of the positioning plate in multiple directions, ensures that the spatial position precision of the positioning plate after installation meets the requirements, provides an accurate positioning reference for subsequent machining or assembly processes, and improves the consistency and precision of product quality. When it is necessary to replace the positioning plate according to the height of the machined product, complex disassembly and installation steps are not needed, and the positioning plate can be fixed only by aligning the pin holes and inserting the positioning pins, so that the installation time of the positioning plate replacement is greatly shortened, and the work efficiency is improved. This operation mode is not only convenient and fast, but also facilitates quick switching of the positioning plate between different machining tasks, and meets the needs of frequent replacement of tooling in multi-variety and small-batch production. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 3 is a three-dimensional structure schematic view of the quick-change positioning tool in the embodiment of the utility model;

[0021] Figure 2 Fig. 4 is a one-directional sectional structure schematic view of the quick-change positioning tool in the embodiment of the utility model;

[0022] Figure 3 Fig. 5 is another directional sectional structure schematic view of the quick-change positioning tool in the embodiment of the utility model.

[0023] MARKS OF THE DRAWINGS:

[0024] 1-positioning plate;

[0025] 11-first positioning pin hole; 12-third countersunk screw hole;

[0026] 12-vertical plate;

[0027] 2-fast-changing mandrel; 21-second positioning pin hole;

[0028] 3-base; 31-positioning stop; 32-first countersunk screw hole; 33-second countersunk screw hole;

[0029] 4-cylindrical positioning pin;

[0030] 5-first locking screw; 6-second locking screw; 7-third locking screw. DETAILED DESCRIPTION

[0031] The technical scheme of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0032] In the description of the utility model, it should be explained that the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements, it can be wireless connection, or wired connection. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] Please refer to Figures 1-3 The utility model embodiment provides a kind of fast-changing positioning tool, which includes base 3, fast-changing mandrel 2 and positioning plate 1, wherein:

[0035] The side of the base 3 is fixed on the workbench, and the upper surface of the base 3 is provided with a positioning stop 31, which provides a precise installation positioning reference surface for the quick-change mandrel 2. The shape and size accuracy of the positioning stop 31 can effectively ensure the installation position accuracy of the quick-change mandrel 2 on the base 3, so that it is stably installed in the vertical direction and the position is accurate, and the subsequent positioning error caused by the mandrel installation deviation is reduced.

[0036] The quick-change mandrel 2 is vertically installed in the positioning stop 31 of the base 3, and the top of the quick-change mandrel 2 is provided with a plurality of vertically distributed second positioning pin holes 21;

[0037] The positioning plate 1 is provided with a plurality of uniformly distributed first positioning pin holes 11, which are positionally corresponding to the second positioning pin holes 21 and are configured to be inserted with a cylindrical positioning pin 4, and the cylindrical positioning pin 4 is suitable for fixing the positioning plate 1 on the quick-change mandrel 2. This pin hole positioning method utilizes the high-precision cooperation of the cylindrical positioning pin, can accurately limit the degrees of freedom of the positioning plate 1 in multiple directions, ensures that the spatial position accuracy of the positioning plate 1 after installation meets the requirements, provides accurate positioning reference for subsequent machining or assembly processes, and improves the consistency and accuracy of product quality.

[0038] Specifically, in the embodiment, the quick-change mandrel 2 is vertically installed in the positioning stop 31 of the base 3, and the first positioning pin holes 11 on one side of the positioning plate 1 are positionally corresponding to the second positioning pin holes 21 on the top of the quick-change mandrel 2. By inserting the cylindrical positioning pin 4, the positioning plate 1 can be fixed on the quick-change mandrel 2. When it is necessary to replace the positioning plate 1 according to the height of the machined product, complex disassembly and installation steps are not required, and the positioning plate 1 can be fixed by aligning the pin holes and inserting the positioning pin, which greatly shortens the installation time of the positioning plate 1 replacement and improves the work efficiency. This operation method is not only convenient and fast, but also facilitates quick switching of the positioning plate 1 between different machining tasks, and meets the needs of frequent replacement of tooling in multi-variety small-batch production.

[0039] It can be understood that the positioning plate 1 can be flexibly replaced with a corresponding specification positioning plate according to the shape, size and machining requirements of different workpieces. The tooling can adapt to the positioning needs of multiple different types of workpieces, improve the versatility and flexibility of the tooling, reduce the cost of purchasing multiple special tooling for enterprises, and is especially suitable for multi-variety production environment.

[0040] Specifically, please refer to Figure 1 , 2 In the specific embodiment of the utility model, the quick-change positioning tool further comprises a first connecting piece and a second connecting piece, wherein:

[0041] The first connecting piece is suitable for being fixedly connected between the positioning plate 1 and the quick-change mandrel 2; and the second connecting piece is suitable for being fixedly connected between the quick-change mandrel 2 and the base 3.

[0042] Thus, the positioning plate 1 and the quick-change core shaft 2 are fixedly connected through the first connecting piece, and the quick-change core shaft 2 and the base 3 are fixedly connected through the second connecting piece, and compared with single cylindrical positioning pin connection, the multi-point connection mode can significantly enhance the overall stability of the whole tool structure. In the machining process, the positioning plate 1 is not easy to loosen or displace even if subjected to a larger cutting force or impact force, thereby ensuring the machining precision and stability.

[0043] Specifically, referring to Figure 1 In the specific embodiment of the utility model, the quick-change positioning tool further comprises a third connecting piece, which is adapted to be fixedly connected between the base 3 and the workbench.

[0044] Thus, through the fixing effect of the third connecting piece, the connection strength between the base 3 and the workbench is increased, and the connection between the base 3 and the workbench is more firm when facing a larger machining force or impact force, so that the tool service life is prolonged, and the downtime repair time caused by connection problems is reduced.

[0045] Specifically, referring to Figure 2 , 3 In the specific embodiment of the utility model, the first connecting piece is a third locking screw 7, a third countersunk screw hole 12 located at the center of the first positioning pin hole 11 is formed in the positioning plate 1, and the bottom of the third countersunk screw hole 12 extends to the quick-change core shaft 2, and the third locking screw 7 is adapted to be threadedly connected in the third countersunk screw hole 12 to fix the positioning plate 1 and the quick-change core shaft 2.

[0046] Compared with other possible connection modes, such as simple pin connection or magnetic adsorption, the threaded connection can provide greater axial clamping force, effectively prevent the positioning plate 1 from loosening or displacing in the machining process, ensure the stable connection between the positioning plate 1 and the quick-change core shaft 2, and improve the reliability and precision of machining.

[0047] In addition, the threaded connection structure of the third locking screw has high strength and rigidity and can withstand a larger tensile force and shear force. When facing the impact load or vibration that may occur in the machining process, the threaded connection can maintain its connection strength and is not easy to be damaged or fail, thereby prolonging the tool service life and reducing the downtime repair time caused by connection problems.

[0048] Specifically, referring to Figure 2 , 3As shown in the specific embodiments of the utility model, the second connecting piece is a second locking screw 6, the base 3 is provided with a second countersunk hole 33 which is vertically and upwardly penetrating at the position opposite to the positioning stop 31, and the top of the second countersunk hole 33 extends to the quick-change mandrel 2, and the second locking screw 6 is suitable for being threadedly connected in the second countersunk hole 33 to fix the quick-change mandrel 2 and the base 3.

[0049] The relative position between the quick-change mandrel 2 and the base 3 can be accurately controlled through the tightening degree of the second locking screw 6.

[0050] The connecting mode does not need complex alignment devices or special tools, and the operator can master it after simple training, thereby improving the installation efficiency and shortening the tool changing time.

[0051] When disassembling, the second locking screw 6 is loosened, and the quick-change mandrel 2 can be taken off from the base 3.

[0052] Specifically, please refer to Figure 3 As shown in the specific embodiments of the utility model, the third connecting piece is a first locking screw 5, the base 3 is provided with a plurality of first countersunk holes 32 which are vertically penetrating on one side, and the first locking screw 5 is suitable for being threadedly connected in the first countersunk hole 32 to fix the base 3 and the workbench.

[0053] Therefore, the first locking screw 5 is threadedly connected in the first countersunk hole 32 of the base to fix the base 3 and the workbench together.

[0054] Specifically, please refer to Figure 2 As shown in the specific embodiments of the utility model, the diameter of the first positioning pin hole 11 is not less than the diameter of the second positioning pin hole 21.

[0055] In this way, the first positioning pin hole 11 can provide greater inclusiveness when the cylindrical positioning pin is inserted into the pin hole for positioning. This helps to more accurately guide the positioning pin into the hole during the initial positioning stage, reducing the gap between the positioning pin and the hole wall, thereby improving the initial positioning accuracy between the positioning plate 1 and the quick-change core shaft 2, and ensuring that the two can be quickly and accurately centered.

[0056] Specifically, referring to Figure 2 As shown in the specific embodiments of the present application, the number of cylindrical positioning pins 4 is not less than two.

[0057] In this way, the provision of multiple cylindrical positioning pins 4 allows the operator to simultaneously adjust the centering when installing the positioning plate 1. This not only improves the efficiency of centering, but also reduces the time required for repeated adjustments due to inaccurate centering of a single positioning pin, allowing the positioning plate 1 to be quickly and accurately installed in place.

[0058] Specifically, referring to Figure 1 , 3 As shown in the specific embodiments of the present application, the size of the positioning stop 31 is greater than the horizontal cross-sectional size of the quick-change core shaft 2.

[0059] The quick-change core shaft 2 can be more easily aligned and inserted into the positioning stop 31 during installation. This provides more operating space for the installation of the core shaft, reducing the difficulty of installation due to size interference, and improving the installation efficiency. At the same time, when disassembling the quick-change core shaft 2, the larger gap also facilitates the insertion and operation of the tool, making the disassembly process smoother.

[0060] Although the present application discloses the above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A quick change positioning tool, characterized by, The utility model relates to a quick-change core shaft fixing device, including: a base is fixed on one side of the workbench, and a positioning stop is formed in the upper surface of the base; a quick-change core shaft is vertically installed in the positioning stop of the base, and a plurality of vertically and evenly distributed second positioning pin holes are formed in the top of the quick-change core shaft; a positioning plate is provided with a plurality of evenly distributed first positioning pin holes on one side, the first positioning pin holes are positionally corresponding to the second positioning pin holes, and a cylindrical positioning pin is configured to be inserted into the first positioning pin holes, and the cylindrical positioning pin is suitable for fixing the positioning plate on the quick-change core shaft.

2. The quick change positioning tooling of claim 1, wherein, Further including: a first connecting piece is suitable for being fixedly connected between the positioning plate and the quick-change core shaft; a second connecting piece is suitable for being fixedly connected between the quick-change core shaft and the base.

3. The quick change positioning fixture of claim 1, wherein, Further including a third connecting piece, which is suitable for being fixedly connected between the base and the workbench.

4. The quick change positioning fixture of claim 2, wherein, The first connecting piece is a third locking screw, a third countersunk hole is formed in the center of the first positioning pin hole on the positioning plate, and the bottom of the third countersunk hole extends to the quick-change core shaft, and the third locking screw is suitable for being threadedly connected in the third countersunk hole to fix the positioning plate and the quick-change core shaft.

5. The quick change positioning fixture of claim 2, wherein, The second connecting piece is a second locking screw, a second countersunk hole is formed in the base opposite the positioning stop and vertically upwardly penetrating, and the top of the second countersunk hole extends to the quick-change core shaft, and the second locking screw is suitable for being threadedly connected in the second countersunk hole to fix the quick-change core shaft and the base.

6. The quick change positioning fixture of claim 3, wherein, The third connecting piece is a first locking screw, a plurality of vertically penetrating first countersunk holes are formed in one side of the base, and the first locking screw is suitable for being threadedly connected in the first countersunk hole to fix the base and the workbench.

7. The quick change positioning fixture of claim 1, wherein, The diameter of the first positioning pin hole is not less than the diameter of the second positioning pin hole.

8. The quick change positioning tooling of any of claims 1-7, wherein, The number of the cylindrical positioning pins is not less than two.

9. The quick change positioning fixture of claim 1, wherein, The size of the positioning stop is greater than the horizontal cross-sectional size of the quick-change core shaft.

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