Special-shaped part positioning tool

Abstract

The utility model relates to a special-shaped part positioning tool which comprises a bottom plate, a positioning device and a positioning device, a binding face is arranged on the bottom plate, the binding face is used for being tightly attached to the back face of a main body, and a notch is formed in one side of the bottom plate and used for containing a cylinder; a plurality of positioning structures, wherein the plurality of positioning structures and the binding surface enclose to form a fixing space for placing a special-shaped part; the positioning structure comprises a positioning part; the attaching piece is used for attaching the side face of the special-shaped piece; the connecting piece is connected with the bottom plate and the attaching pieces, when the special-shaped piece is installed on the special-shaped piece cutting device, the cylinder is placed on the notch, the back face of the main body is tightly attached to the attaching face, and then the special-shaped piece is limited to the special-shaped piece cutting device through the attaching pieces, so that when the base plate drives the special-shaped piece to rotate and a cutter cuts the special-shaped piece, the special-shaped piece is not damaged. The special-shaped part is fixed relative to the position of the special-shaped part clamping device, so that the special-shaped part can be fixed to the bottom plate through the attaching part by placing the cylinder in the vacancy, and the situation that the special-shaped part cannot be machined through a three-jaw chuck is avoided.

Description

Technical Field

[0001] This application relates to the technical field of workpiece processing, and in particular to a positioning fixture for irregularly shaped parts. Background Technology

[0002] Workpiece machining is usually performed using machine tools, which mainly include a base plate, a three-jaw chuck, and cutting tools. The back of the workpiece is pressed against the surface of the three-jaw chuck, and the jaws hold the workpiece, fixing it on the three-jaw chuck. The base plate drives the three-jaw chuck and the workpiece on it to rotate, and the cutting tool cuts close to the rotating workpiece.

[0003] The workpieces that need to be processed are as follows: Figure 1 As shown, the workpiece is an irregularly shaped part, which is mainly composed of a ring and a body. There is a ring on the top of the body, which causes the back of the irregularly shaped part to be uneven. If the irregularly shaped part is clamped and processed by a three-jaw chuck, the back of the body cannot be tightly attached to the surface of the three-jaw chuck, resulting in the irregularly shaped part not being firmly fixed on the three-jaw chuck. Summary of the Invention

[0004] This application provides a positioning fixture for irregularly shaped parts to solve the problem that three-jaw chucks are not suitable for irregularly shaped parts in related technologies.

[0005] Firstly, a positioning fixture for irregularly shaped parts is provided, comprising:

[0006] The base plate has a bonding surface that is used to fit tightly against the back of the irregular part. There is a notch on one side of the base plate for placing the irregular part cylinder.

[0007] A plurality of positioning structures, the plurality of positioning structures and the mating surface forming a fixed space for placing irregularly shaped parts; the positioning structures include;

[0008] Adhesive components are used to adhere to the sides of irregularly shaped parts.

[0009] Connectors are connected to the base plate and the bonding component respectively.

[0010] In some embodiments, the bonding element is located within the notch and is used to fit tightly against the side of the irregular cylindrical part.

[0011] In some embodiments, the connector includes an extension rod;

[0012] The extension rod is located on the side of the base plate.

[0013] In some embodiments, the bonding element is disposed on the bonding surface and is used to tightly adhere to the side of the irregularly shaped part body.

[0014] In some embodiments, the connector further includes a fixing plate;

[0015] The fixing plate is set on the mating surface.

[0016] In some embodiments, the pressing plate is further included.

[0017] The pressing plate is arranged on the bottom plate.

[0018] In some embodiments, the hydraulic rod is further included.

[0019] Two ends of the hydraulic rod are connected with the bottom plate and the pressing plate respectively.

[0020] The embodiment of the present application provides a positioning tool for a special-shaped part. When the special-shaped part is installed on the present application, the cylinder is placed on the missing part, the back of the main body is tightly attached to the attachment surface, and then the special-shaped part is limited on the present application through the plurality of attachment parts. When the bottom plate drives the special-shaped part to rotate and the cutter cuts, the position of the special-shaped part relative to the present application is fixed. Therefore, the present application places the cylinder on the missing part, so that the special-shaped part can be fixed on the bottom plate through the attachment parts, thereby avoiding the case that the special-shaped part cannot be processed by using a three-jaw chuck. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 The structural schematic diagram of the special-shaped part is provided for the embodiment of the present application.

[0023] Figure 2 The structural front view schematic diagram is provided for the embodiment of the present application.

[0024] Figure 3 The structural schematic diagram of the positioning structure is provided for the embodiment of the present application.

[0025] Figure 4 The structural back view schematic diagram is provided for the embodiment of the present application.

[0026] In the figure: 1, bottom plate; 2, attachment surface; 3, missing part; 4, positioning structure; 41, attachment part; 42, connecting part; 42a, extension rod; 41b, fixed plate; 5, pressing plate; 6, hydraulic rod. DETAILED DESCRIPTION

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0028] The embodiment of the present application provides a special-shaped part positioning tool, which can solve the problem that a three-jaw chuck is not applicable to a special-shaped part in the related art.

[0029] Please refer to Figures 1 to 4 A special-shaped part positioning tool, comprising:

[0030] A bottom plate 1, the bottom plate 1 has a fitting surface 2, the fitting surface 2 is used for closely fitting a back surface of a special-shaped part body, one side of the bottom plate 1 is provided with a missing part 3, the missing part 3 is used for placing a cylinder of the special-shaped part;

[0031] A plurality of positioning structures 4, the plurality of positioning structures and the fitting surface surround a fixed space used for placing the special-shaped part; the positioning structure 4 comprises:

[0032] A fitting part 41, the fitting part 41 is used for fitting a side surface of the special-shaped part;

[0033] A connecting part 42, the connecting part 42 is connected with the bottom plate 1 and the fitting part 41 respectively.

[0034] As Figure 2 shown, the bottom plate 1 is a semicircular column, the missing part 3 is located on one side of the flat side surface of the bottom plate 1, because the body is a ring structure, so that the fitting surface of the special-shaped part and the bottom plate 1 is larger, when the special-shaped part is installed on the bottom plate 1, the cylinder is placed in the missing part 3, avoiding that the special-shaped part cannot be fixed flat due to the cylinder closely fitting the fitting surface, the body closely fits the fitting surface 2, the fitting part 41 closely fits the side surface of the special-shaped part, and the fitting part 41 is located at different positions of the special-shaped part through the connecting part 42, in a preferred embodiment, three fitting parts 41 surround a triangular area, which is helpful to fix the position of the special-shaped part on the bottom plate 1;

[0035] It should be pointed out that a countersunk screw hole is formed on the bottom plate 1, and the bottom plate 1 is fixed on a machine tool through the countersunk screw.

[0036] The fitting part 41 is located in the missing part 3, and the fitting part 41 is used for closely fitting a side surface of the cylinder of the special-shaped part.

[0037] The connecting part 42 comprises an extension rod 42a;

[0038] The extension rod 42a is arranged on the side surface of the bottom plate 1;

[0039] When the fitting part 41 is located in the vacancy 3, the connecting part is the extension rod 42a, which is connected with the flat side of the bottom plate 1. In this embodiment, one of the fitting parts 41 is in the vacancy 3, and the extension rod 42a is connected with the fitting part 41 by bolts. The fitting part 41 is fixed relative to the bottom plate 1 by the fixation of the extension rod 42a and the bottom plate 1. When the bottom plate 1 rotates, the special-shaped part will be rotated slowly due to inertia. The fitting part 41 in the vacancy 3 is in contact with the side of the cylinder, so that the special-shaped part is rotated synchronously with the bottom plate 1.

[0040] The fitting part 41 is arranged on the fitting surface 2, and is used for being in contact with the side of the special-shaped part;

[0041] The connecting part 42 further comprises a fixed plate 42b;

[0042] The fixed plate 42b is arranged on the fitting surface 2.

[0043] When the fitting part 41 is arranged on the fitting surface 2, the connecting part 42 is the fixed plate 42b. In a preferable embodiment, the number of the extension rod 42a is one, the number of the fixed plate 42b is two, and only one fitting part 41 is connected on each of the fixed plate 42b and the extension rod 42a. The extension rod 42a is located in the middle of the flat side of the bottom plate 1, and the two fixed plates 42b are symmetrical about the central axis of the bottom plate 1. The fixed plate 42b is connected with the fitting part 41 by bolts, as shown in Figure 3 .

[0044] The fitting part 41 on the fixed plate 42b is fixed by bolts, and the two fitting parts 41 are directed to a point, which is located on the extension line of the length of the extension rod 42a. The special-shaped part is lifted by the two fitting parts 41, as shown in Figure 2 .

[0045] Further comprising a pressing plate 5;

[0046] The pressing plate 5 is arranged on the bottom plate 1.

[0047] Further comprising a hydraulic rod 6;

[0048] The two ends of the hydraulic rod 6 are connected with the bottom plate 1 and the pressing plate 5 respectively;

[0049] The pressing plate 5 is controlled to be away from the fitting surface 2 by the hydraulic rod 6, and in the actual installation of the special-shaped part, the pressing plate 5 is first controlled to be away from the fitting surface 2, the special-shaped part body is passed through the pressing plate 5, until the special-shaped part contacts the two fitting parts 41 installed on the fitting surface 2, then the position of the special-shaped part is adjusted, so that the cylinder is close to the fitting part 41 installed on the extension rod 42a, and in the process of adjusting the position of the special-shaped part, the pressing plate 5 can effectively prevent the special-shaped part from falling off the device, then the pressing plate 5 is controlled to be close to the fitting surface 2, so that the pressing plate 5 clamps the special-shaped part with the bottom plate 1, and the special-shaped part is prevented from falling off in the processing process.

[0050] The number of the pressing plate 5 and the hydraulic rod 6 is two, and the two pressing plates 5 and the two hydraulic rods 6 are one-to-one corresponding, the two pressing plates 5 are symmetrically arranged about the central axis of the bottom plate 1, and the two pressing plates 5 can clamp the two sides of the special-shaped part respectively, so that the special-shaped part can be placed more effectively from the bottom plate 1.

[0051] The working principle of the present application is as follows:

[0052] Before use, the present application needs to be installed on the machine tool through the countersunk head bolt, then the two pressing plates 5 are controlled to be away from the bottom plate 1, the special-shaped part is convenient to pass through between the bottom plate 1 and the pressing plate 5, when the fitting parts 41 on the two fixed plates 42b hold the special-shaped part, the special-shaped part is adjusted, so that the side of the cylinder is close to the fitting part 41 on the extension rod 42a, then the pressing plate 5 is controlled to be close to the bottom plate 1, so that the pressing plate 5 clamps the special-shaped part, and after the special-shaped part is clamped, the processing can be carried out.

[0053] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. Unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting" 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 meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0055] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A positioning fixture for irregularly shaped parts, characterized in that, include: A base plate (1) has a bonding surface (2) on it, which is used to tightly adhere to the back of the irregular part body. A notch (3) is provided on one side of the base plate (1), which is used to place the irregular part cylinder. A plurality of positioning structures (4), wherein the plurality of positioning structures and the mating surface form a fixed space for placing irregularly shaped parts; the positioning structure (4) includes; Adhesive component (41), the adhesive component (41) is used to adhere to the side of the irregular part; Connector (42), which is connected to the base plate (1) and the bonding member (41) respectively.

2. The irregular part positioning fixture as described in claim 1, characterized in that: The fitting (41) is located within the notch (3) and is used to fit tightly against the side of the irregular cylindrical part.

3. The irregular part positioning fixture as described in claim 2, characterized in that: The connector (42) includes an extension rod (42a); The extension rod (42a) is disposed on the side of the base plate (1).

4. The irregular part positioning fixture as described in claim 1, characterized in that: The bonding member (41) is disposed on the bonding surface (2) and is used to tightly adhere to the side of the irregular part body.

5. The irregular part positioning fixture as described in claim 4, characterized in that: The connector (42) also includes a fixing plate (42b); The fixing plate (42b) is disposed on the bonding surface (2).

6. The irregular part positioning fixture as described in claim 1, characterized in that: It also includes a pressure plate (5); The pressure plate (5) is disposed on the base plate (1).

7. The irregular part positioning fixture as described in claim 6, characterized in that: It also includes a hydraulic rod (6); The two ends of the hydraulic rod (6) are respectively connected to the base plate (1) and the pressure plate (5).

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