A positioning tool

Abstract

The utility model discloses a positioning frock, including base, the top rotation of base is installed with mounting seat, the bottom swing installation of mounting seat has a pair of ring bolt, and the elastic component is connected between mounting seat and ring bolt, and the side wall rotation of mounting seat is installed with a pair of respectively equipped with pulley's support arm, and the central position of mounting seat swing installation has the guide block, and a pair of support arm is connected with guide block respectively to make linear motion with the guide block drive a pair of support arm relative around axle rotation adjustment interval. The utility model discloses adjustable interval positioning assembly that pulley, screw and guide block are composed on mounting seat, and mounting seat can cooperate with ring bolt and spring adjustment in the installation direction of base, and the traditional positioning frock needs to design special fixture for tubular and rectangular workpiece respectively, and the device realizes double function through single structure, and the structure is simple, compact installation, has stronger versatility and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing, specifically to a positioning tooling. Background Technology

[0002] Currently, in the fields of mechanical manufacturing and automated assembly, workpiece positioning fixtures are used to accurately position and fix workpieces to ensure the accuracy and stability of the machining and assembly processes. However, existing positioning fixtures generally suffer from poor versatility and complex structures.

[0003] Currently, traditional positioning fixtures typically require the design of dedicated clamps for different workpiece shapes (such as tubular and rectangular workpieces). For example, positioning tubular workpieces requires arc-shaped jaws or V-groove structures to accommodate their circular cross-sections; while positioning rectangular workpieces necessitates the use of flat clamping plates or slot structures. This approach not only results in a wide variety of fixtures and high costs, but also necessitates frequent fixture changes when switching between different workpiece types, increasing equipment setup time and labor costs, and severely impacting production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning tool to solve the problem of the limited functionality of traditional positioning tools mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture, including a base, a mounting seat rotatably mounted on the top of the base, a pair of eye bolts movably mounted on the bottom of the mounting seat, an elastic member connecting the mounting seat and the eye bolts, a pair of support arms, each equipped with a pulley, rotatably mounted on the side wall of the mounting seat, a guide block movably mounted at the center of the mounting seat, and the pair of support arms connected to the guide block, so that when the guide block makes linear movement, it drives the pair of support arms to rotate relative to each other around an axis to adjust the spacing.

[0006] Preferably, a pair of eye bolts are rotatably mounted in the base via a pivot, the end of each eye bolt passes through the mounting base and is threaded with a nut, and the elastic member is a spring sleeved on the eye bolt, with both ends of the spring contacting the nut and the mounting base respectively.

[0007] Preferably, a screw is rotatably mounted at the center of the mounting base, the guide block is threadedly connected to the screw, a sliding sleeve is rotatably mounted on the side wall of the support arm, and a pair of sliding sleeves of the support arm are slidably mounted in the guide block.

[0008] Preferably, the top of the screw passes through the mounting base and has an internal hexagonal groove.

[0009] Preferably, the top and side walls of the base are respectively provided with limiting grooves for accommodating the mounting base, and both ends of the mounting base are respectively provided with grooves that are adapted to the limiting grooves.

[0010] Preferably, the base has a pair of through holes at its bottom.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model uses pulleys, screws, and guide blocks to form an adjustable-spacing positioning assembly on the mounting base. The mounting base can be adjusted in the mounting direction on the base with the eye bolts and springs. Traditional positioning fixtures require special clamps to be designed for tubular and rectangular workpieces, while this device achieves dual functions through a single structure. It has a simple structure, compact installation, and strong versatility and flexibility. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the first state of this utility model;

[0014] Figure 2 This is a schematic diagram of the second state three-dimensional structure of the present invention;

[0015] Figure 3 This is a cross-sectional three-dimensional structural diagram of the mounting base of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the support arm and guide block of this utility model.

[0017] In the diagram: 1. Base; 2. Mounting base; 3. Support arm; 4. Pulley; 5. Screw; 6. Limiting groove; 7. Groove; 8. Eye bolt; 9. Spring; 10. Guide block; 11. Sliding sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3This utility model provides a technical solution: a positioning fixture, including a base 1, with a pair of through holes at the bottom of the base 1 for inserting bolts through the base 1 and securely connecting them to a pre-set mounting hole (existing technology) on a machine tool. A mounting seat 2 is rotatably mounted on the top of the base 1, and a pair of eye bolts 8 are movably mounted on the bottom of the mounting seat 2. An elastic member connects the mounting seat 2 and the eye bolts 8. The pair of eye bolts 8 are rotatably mounted in the base 1 via a rotating shaft. The ends of the eye bolts 8 penetrate the mounting seat 2 and are threaded with nuts. The elastic member is a spring 9 sleeved on the eye bolts 8, with each end of the spring 9 having a nut threaded onto it. The base 1 has a limiting groove 6 on its top and side walls to accommodate the mounting seat 2, which is in contact with the nut and the mounting seat 2. The two ends of the mounting seat 2 are respectively provided with grooves 7 that are adapted to the limiting grooves 6. The advantage of this setting is that the direction of the mounting seat 2 can be adjusted according to the shape of the workpiece to be positioned. If it is necessary to position a tubular workpiece, the mounting seat 2 can be adjusted to a vertical position, at which time the groove 7 is engaged with the limiting groove 6 on the top. If it is necessary to position a rectangular workpiece, the mounting seat 2 can be adjusted so that the groove 7 is engaged with the limiting groove 6 on the side. Under the action of the elastic potential energy of the spring 9, the mounting seat 2 can be prevented from coming loose from the limiting groove 6.

[0020] Please see Figures 2-4 A pair of support arms 3, each equipped with a pulley 4, are rotatably mounted on the side wall of the mounting base 2. A guide block 10 is movably mounted at the center of the mounting base 2. The pair of support arms 3 are connected to the guide block 10 so that when the guide block 10 makes linear movement, it drives the pair of support arms 3 to rotate relative to each other around the axis to adjust the distance. A screw 5 is rotatably mounted at the center of the mounting base 2. The top of the screw 5 passes through the mounting base 2 and is provided with an internal hexagonal groove. The guide block 10 is threadedly connected to the screw 5. A sliding sleeve 11 is rotatably mounted on the side wall of the support arm 3. The sliding sleeves 11 of the pair of support arms 3 are slidably mounted in the guide block 10.

[0021] When positioning tubular workpieces, in order to improve the applicability, the guide block 10 can be driven to make a vertical linear movement in the mounting base 2 by turning the screw 5. Under the action of the sliding sleeve 11, a pair of pulleys 4 can be driven to move relative to each other around the axis to adjust the distance between the two support arms 3.

[0022] This application uses pulley 4, screw 5 and guide block 10 to form an adjustable spacing positioning component on mounting base 2. Mounting base 2 can be adjusted in the mounting direction on base 1 with eye bolt 8 and spring 9. Traditional positioning fixtures require special fixtures to be designed for tubular and rectangular workpieces respectively, while this device achieves dual functions through a single structure. It has a simple structure, compact installation and strong versatility and flexibility.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture, characterized in that: The device includes a base (1), a mounting seat (2) is rotatably mounted on the top of the base (1), a pair of eye bolts (8) are movably mounted on the bottom of the mounting seat (2), an elastic member is connected between the mounting seat (2) and the eye bolts (8), a pair of support arms (3) with pulleys (4) are rotatably mounted on the side wall of the mounting seat (2), a guide block (10) is movably mounted at the center of the mounting seat (2), and the pair of support arms (3) are connected to the guide block (10) respectively, so that when the guide block (10) makes linear movement, it drives the pair of support arms (3) to rotate relative to the axis to adjust the distance.

2. The positioning fixture according to claim 1, characterized in that: A pair of eye bolts (8) are rotatably mounted in the base (1) via a pivot. The end of the eye bolt (8) passes through the mounting base (2) and is threaded with a nut. The elastic member is a spring (9) sleeved on the eye bolt (8). The two ends of the spring (9) are in contact with the nut and the mounting base (2) respectively.

3. The positioning fixture according to claim 1, characterized in that: A screw (5) is rotatably mounted at the center of the mounting base (2), and the guide block (10) is threadedly connected to the screw (5). A sliding sleeve (11) is rotatably mounted on the side wall of the support arm (3), and a pair of sliding sleeves (11) of the support arm (3) are respectively slidably mounted in the guide block (10).

4. A positioning fixture according to claim 3, characterized in that: The top of the screw (5) passes through the mounting base (2) and is provided with an internal hexagonal groove.

5. A positioning fixture according to claim 1, characterized in that: The base (1) has a limiting groove (6) on its top and side walls for accommodating the mounting base (2), and the mounting base (2) has grooves (7) at both ends that are adapted to the limiting groove (6).

6. A positioning fixture according to claim 1, characterized in that: The base (1) has a pair of through holes at its bottom.

Images