Positioning tool for turning special-shaped plate parts

Abstract

The utility model relates to the field of machining, and discloses a positioning tool for turning special-shaped plate parts, which comprises a base, and a plurality of fixing components and pushing components which are detachably mounted on the base, the base is annular and is used for being clamped on a chuck of a lathe, and a plurality of kidney-shaped mounting holes are annularly arrayed in the base; the fixing assembly is provided with a positioning groove used for positioning the special-shaped plate. And an inclined wedge block is arranged on the pushing assembly in a sliding manner and is used for pushing the special-shaped plate. According to the positioning tool designed by the utility model, the positions of the fixing assembly and the pushing assembly on the base can be adjusted according to the appearance size, the thickness and the machining position of a part to be machined, the part to be machined is locked by the fixing assembly and the pushing assembly, and only the base needs to be clamped on a chuck of a lathe; and the precision of the part in the turning process can be guaranteed, and meanwhile the advantages that feeding and discharging are fast and convenient can be taken into account.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, especially to a positioning tool for turning of special-shaped plate parts. BACKGROUND

[0002] At present, for the machining of special-shaped plate parts with irregular shapes, such as machining of holes with high precision on special-shaped plates, turning machining (the machining precision of a lathe is higher than that of a drilling machine) is usually adopted, and the clamping mode of three-jaw or four-jaw chucks is generally adopted for turning machining, but plate parts with irregular shapes have always been a problem for turning machining, and the position of the chuck jaw needs to be constantly adjusted to determine the position of the workpiece during clamping, which is time-consuming and laborious and difficult to ensure the position precision of the product.

[0003] Based on this, the positioning tool for turning of special-shaped plate parts is provided to solve the above problems. SUMMARY

[0004] The utility model aims at solving the problem that the position of the chuck jaw needs to be constantly adjusted to determine the position of the workpiece for turning machining of special-shaped plate parts at present. To this end, the utility model provides a positioning tool for turning of special-shaped plate parts.

[0005] The utility model solves the technical problems by adopting the following technical solutions:

[0006] The positioning tool for turning of special-shaped plate parts comprises a base, a plurality of fixing components and a pushing and tightening component which are detachably installed on the base, the base is annular and is used for clamping on the chuck of a lathe, a plurality of waist-round mounting holes are arranged in the annular array on the base, a positioning groove for positioning the special-shaped plate is arranged on the fixing component, and a slant wedge block is arranged on the pushing and tightening component for pushing and tightening the special-shaped plate.

[0007] In some optional embodiments, the plurality of fixing components and the plurality of pushing and tightening components are adjacently arranged.

[0008] In some optional embodiments, the fixing component comprises a fixed block, a movable block and a fastening bolt, the movable block is fixedly installed on the top of the end face of the fixed block at one end of the special-shaped plate through the fastening bolt, and the bottom surface of the movable block and the end face of the fixed block form the positioning groove.

[0009] In some optional embodiments, a countersunk waist-round hole is arranged on the movable block, and the fastening bolt is screwed with the fixed block through the countersunk waist-round hole.

[0010] In some optional embodiments, the contact surfaces of the fixed block and the movable block are provided with meshing teeth.

[0011] In some alternative embodiments, the fixing assembly further comprises two jacking bolts, both of which are arranged on the top of the movable block and are threaded through the movable block.

[0012] In some alternative embodiments, the jacking assembly comprises a fixing seat, a wedge block, a locking bolt and a return spring, the fixing seat is provided with an inclined sliding groove, one end of the wedge block is slidingly arranged on the sliding groove, the wedge block is provided with a waist hole, the locking bolt is screwed with the fixing seat through the waist hole, the return spring is arranged in the counterbore at the bottom of the wedge block, and the end of the wedge block in contact with the special-shaped plate is provided with an inclined surface.

[0013] In some alternative embodiments, the inclination angle of the end of the wedge block connected with the fixing seat is greater than the inclination angle of the end of the wedge block in contact with the special-shaped plate.

[0014] In some alternative embodiments, at least one locking block is arranged behind each of the fixing assembly or the jacking assembly to lock the position of the fixing assembly or the jacking assembly.

[0015] In some alternative embodiments, a counterweight block is arranged on the base.

[0016] Compared with the prior art, the positioning tool has the following beneficial effects:

[0017] 1. The positioning tool can adjust the position of the fixing assembly and the jacking assembly on the base according to the shape, size, thickness and processing position of the processed part, and can lock the part by the fixing assembly and the jacking assembly, so that the base can be clamped on the chuck of the lathe, the accuracy of the part in the turning process is ensured, and the loading and unloading are fast and convenient.

[0018] 2. The fixing assembly can be flexibly adjusted according to the thickness of the part, and has high applicability; and the jacking assembly can exert a lateral pressing force on the part, so that the reliability of the part locking is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor, and the drawings comprise:

[0020] Figure 1 is a perspective view of the positioning tool for turning processing of the special-shaped plate part provided by the present application;

[0021] Figure 2It is the plan view of the positioning tool for turning processing of the special-shaped plate part provided in the utility model.

[0022] Figure 3 It is Figure 2 The C-C section view provided;

[0023] Figure 4 It is the bottom view of the positioning tool for turning processing of the special-shaped plate part provided in the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1 - base, 1.1 - mounting hole, 2 - fixing assembly, 2.1 - fixed block, 2.2 - movable block, 2.3 - fastening bolt, 2A - meshing tooth, 2.4 - jacking bolt, 3 - pushing assembly, 3.1 - fixed seat, 3.1.0 - sliding groove, 3.2 - inclined wedge block, 3.3 - locking bolt, 3.4 - return spring, 4 - counterweight, 5 - locking block. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the present application.

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be pointed out that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "mounting", "connection" and "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 an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0029] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0030] Example 1

[0031] This embodiment provides a positioning tool for turning special-shaped plate parts, as shown in the attached Figure 1 To the attached Figure 4 As shown, it includes a base 1, a fixing component 2, a pushing component 3 and a counterweight 4, wherein:

[0032] The base 1 serves as the installation basis for the fixing component 2, the tightening component 3, and the counterweight 4, and is used to be clamped on the chuck of the lathe. The base is annular as a whole, and has a plurality of waist-shaped mounting holes 1.1 arranged in a ring shape on it. The back of the mounting hole is provided with a countersunk hole, which can sink the bolts of the fixing component 2, the tightening component 3, and the counterweight 4 into the base.

[0033] Multiple fixing components 2 and multiple pushing components 3 are detachably mounted on the base 1 by bolts. Figure 1 As shown, the special-shaped plate parts provided in this embodiment are locked on the base by two fixing components and two pushing components. Preferably, the plurality of fixing components 2 and the plurality of pushing components 3 are arranged adjacent to each other.

[0034] The counterweight block 4 is fixed to the base 1 by bolts and is used as the counterweight of the positioning tool to ensure the dynamic balance of the positioning tool during the turning process.

[0035] Preferably, as attached Figure 1 and attached Figure 3 As shown, the fixing assembly 2 includes a fixed block 2.1, a movable block 2.2 and a fastening bolt 2.3. The movable block 2.2 is fixedly mounted on the top of the end face of the fixed block 2.1 facing one end of the special-shaped plate by the fastening bolt 2.3. The bottom surface of the movable block 2.2 and the end face of the fixed block 2.1 form a positioning groove, and the parts can be arranged in the positioning groove. Preferably, a countersunk waist-shaped hole is provided on the movable block 2.2, and the fastening bolt 2.3 passes through the countersunk waist-shaped hole and is screwed to the fixed block 2.1. This design can adjust the position of the movable block by adjusting the fastening bolt to accommodate parts of different thicknesses. Furthermore, the contact surfaces of the fixed block 2.1 and the movable block 2.2 are both provided with meshing teeth 2A. This design can increase the connection reliability between the movable block and the fixed block and prevent the movable block from shifting.

[0036] Further, the fixing assembly 2 further comprises two tightening bolts 2.4, which are arranged on the top of the movable block 2.2 and are screwed through the movable block 2.2. The design of the tightening bolts can tightly press the workpiece, thereby ensuring the clamping reliability of the workpiece.

[0037] Preferably, as shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 3 The pushing assembly 3 comprises a fixing seat 3.1, a wedge block 3.2, a locking bolt 3.3 and a reset spring 3.4. The fixing seat 3.1 is provided with an inclined sliding groove 3.1.0. One end of the wedge block 3.2 is slidingly arranged on the sliding groove. The wedge block 3.2 and the sliding groove 3.1.0 are preferably dovetail joint structures. The wedge block 3.2 is provided with a waist hole. The locking bolt 3.3 is screwed with the fixing seat 3.1 through the waist hole. The reset spring 3.4 is arranged in the counterbore at the bottom of the wedge block 3.2. The end of the wedge block 3.2 in contact with the special-shaped plate is provided with an inclined surface. The pushing assembly designed in the embodiment can control the movement of the wedge block along the sliding groove of the fixing seat by adjusting the locking bolt, thereby realizing the quick clamping or loosening of the workpiece.

[0038] Preferably, the inclination angle of the end of the wedge block 3.2 connected with the fixing seat 3.1 is greater than the inclination angle of the end of the wedge block 3.2 in contact with the special-shaped plate. Specifically, the inclination angle of the end of the wedge block 3.2 connected with the fixing seat 3.1 is 20°, and the inclination angle of the end of the wedge block 3.2 in contact with the special-shaped plate is 10°.

[0039] In specific implementation, first, the position, direction and height of the fixing assembly are adjusted according to the size, thickness and clamping position of the machined part. Then, the position, direction and height of the pushing assembly are adjusted. The part to be machined is first attached to the positioning groove of the fixing assembly. The workpiece is pressed by the tightening bolt. Then, the wedge block is pressed by the locking bolt, so as to force the wedge block to displace and generate a lateral force and a pressing force, thereby locking the part. The utility model can basically meet the clamping of all special-shaped parts. The thickness of the part can be between 15-30 mm, and the size of the part can be between 400-180 mm. The utility model can ensure the accuracy of the part in the turning process, and also has the advantages of fast and convenient feeding and discharging. The utility model can effectively improve the work efficiency, reduce the labor intensity and improve the quality of the product.

[0040] Embodiment two

[0041] On the basis of embodiment one, the utility model further comprises at least one locking block 5 arranged behind each of the fixing assembly 2 or the pushing assembly 3, which is used for locking the position of the fixing assembly or the pushing assembly.

[0042] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, are all included in the patent protection scope of the present application.

Claims

1. A positioning tool for turning a profiled plate-like part, characterized in that: The base and a plurality of fixing assemblies and pushing and tightening assemblies detachably mounted on the base; The base is annular and is used for clamping on a chuck of a lathe, and a plurality of waist-round mounting holes are arranged in the annular base in an array; The fixing assembly is provided with a positioning groove for positioning the special-shaped plate; The pushing and tightening assembly is provided with a sliding wedge block for pushing and tightening the special-shaped plate.

2. The positioning fixture of claim 1, wherein: The plurality of fixing assemblies and the plurality of pushing and tightening assemblies are adjacently arranged.

3. The positioning tool of claim 1, wherein: The fixing assembly comprises a fixed block, a movable block and a fastening bolt, the movable block is fixedly mounted on the top of the end face of the fixed block at one end of the special-shaped plate by the fastening bolt, and the bottom face of the movable block and the end face of the fixed block form the positioning groove.

4. The positioning fixture of claim 3, wherein: The movable block is provided with a countersunk waist-round hole, and the fastening bolt is screwed with the fixed block through the countersunk waist-round hole.

5. The positioning tool of claim 3, wherein: The contact faces of the fixed block and the movable block are provided with meshing teeth.

6. The positioning fixture of claim 3, wherein: The fixing assembly further comprises two top tightening bolts, which are arranged on both sides of the top of the movable block and are screwed through the movable block.

7. The positioning fixture of claim 1, wherein: The pushing and tightening assembly comprises a fixed seat, a wedge block, a locking bolt and a return spring, the fixed seat is provided with an inclined sliding groove, one end of the wedge block is slidingly mounted on the sliding groove, the wedge block is provided with a waist-round hole, the locking bolt is screwed with the fixed seat through the waist-round hole, the return spring is arranged in the counterbore at the bottom of the wedge block, and the end of the wedge block in contact with the special-shaped plate is provided with an inclined surface.

8. The positioning fixture of claim 1, wherein: The inclination angle of the end of the wedge block connected with the fixed seat is greater than the inclination angle of the end of the wedge block in contact with the special-shaped plate.

9. The positioning tooling of any one of claims 1 to 8, wherein: At least one locking block is arranged behind each fixing assembly or pushing and tightening assembly for locking the position of the fixing assembly or the pushing and tightening assembly.

10. The positioning tooling of any one of claims 1 to 8, wherein: A counterweight is further arranged on the base.

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