Positioning tool for automatic feeding of shaft parts

Abstract

The utility model relates to a locating tool for automatic feeding of shaft parts, which comprises a locating disc, a plurality of containing grooves are evenly formed in the locating disc at equal intervals, a limiter is arranged in each containing groove, each limiter comprises a first screw rod, a second screw rod, a first sliding block and a second sliding block, the first screw rod and the second screw rod are symmetrically arranged in the containing grooves, and the first sliding block and the second sliding block are arranged on the locating disc. The first sliding block is arranged at the end, close to the second screw, of the first screw, the second sliding block is arranged at the end, close to the first screw, of the second screw, and pressure sensors are arranged on the surfaces of the first sliding block and the second sliding block. The relative distance between the first screw rod and the second screw rod can be adjusted through rotation of the first screw rod and the second screw rod, and the positions of the first screw rod and the second screw rod in the containing groove can be adjusted, so that the device can adapt to shaft parts within a large size range; the problem that the positioning jig with the corresponding size needs to be reprocessed when the size slightly fluctuates is solved, and the material cost of the jig is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft parts processing, in particular to a positioning tool for automatic feeding of shaft parts. Background Art

[0002] Shaft parts are one of the typical parts often encountered in hardware accessories. They are mainly used to support transmission components, transmit torque and bear loads. According to the different structural forms of shaft parts, they can generally be divided into three categories: smooth shafts, stepped shafts and special-shaped shafts; or divided into solid shafts, hollow shafts, etc. In industrial products, shaft parts are suitable for one or more CNC machine tool parts maintenance operations. They are used in machines to support transmission parts such as gears and pulleys to transmit torque or motion. Shaft parts are rotating parts with a length greater than the diameter. They are generally composed of the outer cylindrical surface, conical surface, inner hole and thread of the concentric shaft and the corresponding end face. The shaft with an aspect ratio of less than 5 is called a short shaft, and that greater than 20 is called a slender shaft. Most shafts are between the two.

[0003] Because shaft parts are slender and smooth, they are not easy to locate and clamp. Existing positioning devices are either complex in structure or have a small clamping size range. Therefore, a positioning tool with a simple structure and a wide positioning size range is particularly important. Utility Model Content

[0004] The utility model aims to provide a positioning tool for automatic feeding of shaft parts to solve the problems existing in the above-mentioned prior art.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A positioning tool for automatic feeding of shaft parts, comprising a positioning plate, a plurality of accommodating grooves are evenly arranged at equal intervals on the positioning plate, each of the accommodating grooves is provided with a limiter, the limiter comprises a first screw, a second screw, a first slider and a second slider, the first screw and the second screw are symmetrically arranged in the accommodating groove, the first screw and the second screw are both arranged horizontally, threaded holes corresponding to the first screw and the second screw are arranged in the accommodating groove, the first slider is arranged at one end of the first screw close to the second screw, the second slider is arranged at one end of the second screw close to the first screw, the peripheries of the first slider and the second slider are both arranged to be acute-angled inverted shapes, and pressure sensors are provided on the surfaces of the first slider and the second slider.

[0007] By adopting the above technical solution, the relative distance between the first screw and the second screw can be adjusted by rotating the first screw and the second screw, and the positions of the first screw and the second screw in the accommodating groove can be adjusted, so that the device can adapt to shaft parts within a larger size range, avoiding the problem of needing to re-process the positioning fixture of the corresponding size when the size fluctuates slightly, greatly saving the material cost of the fixture, and the thread itself has a high tightness, which can fully meet the processing and positioning needs.

[0008] In a further embodiment, a plurality of nuts are sleeved on the first screw rod and the second screw rod.

[0009] In a further embodiment, an ear plate is provided at a middle position of the bottom of the accommodating groove, and an arc-shaped groove is provided at the top of the ear plate.

[0010] In a further embodiment, a magnet is disposed inside the ear plate.

[0011] In a further embodiment, the ends of the first slider and the second slider that are back to back are each provided with a positioning hole, a positioning pin is inserted into the positioning hole, and the ends of the first slider and the second slider that are close to each other are each provided with a dovetail groove, and the dovetail groove is connected to the positioning hole.

[0012] In a further embodiment, end surface positioning blocks are slidably installed in the dovetail grooves.

[0013] By adopting the above technical solution, the corresponding special-shaped end face positioning block can be slidably installed in the dovetail groove, so that the device has higher applicability and can achieve precise positioning of shaft parts with different end faces, avoiding the problem of having to redo the entire fixture when processing some small batches of special-shaped shaft parts.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. The relative distance between the first screw and the second screw can be adjusted by rotating the first screw and the second screw, and the positions of the first screw and the second screw in the receiving groove can be adjusted, so that the device can adapt to shaft parts within a larger size range, avoiding the problem of needing to re-process the positioning fixture of the corresponding size when the size fluctuates slightly, greatly saving the material cost of the fixture, and the thread itself has a high tightness, which can fully meet the effect of processing and positioning;

[0016] 2. By slidably installing the end face positioning blocks in the dovetail groove, the corresponding special-shaped end face positioning blocks can be slidably installed in the dovetail groove, so that the device has higher applicability and can achieve accurate positioning of shaft parts with different end faces and special shapes, avoiding the problem of having to redo the entire fixture when processing some small batches of special-shaped shaft parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the accommodating groove of the utility model.

[0019] In the figure, 1, positioning plate; 2, receiving groove; 3, limiter; 31, first screw; 32, second screw; 33, first slider; 34, second slider; 4, pressure sensor; 5, nut; 6, ear plate; 7, magnet. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] Embodiment 1:

[0023] like Figure 1-2As shown, a positioning tool for automatic feeding of shaft parts includes a positioning plate 1, a plurality of accommodating grooves 2 are evenly arranged on the positioning plate 1, a limiter 3 is arranged in each accommodating groove 2, the limiter 3 includes a first screw 31, a second screw 32, a first slider 33 and a second slider 34, the first screw 31 and the second screw 32 are symmetrically arranged in the accommodating groove 2, the first screw 31 and the second screw 32 are both horizontally arranged, and threaded holes corresponding to the first screw 31 and the second screw 32 are arranged in the accommodating groove 2, the first slider 33 is arranged at one end of the first screw 31 close to the second screw 32, and the second slider 34 is arranged at the second screw 32 close to the first screw At one end of 31, the periphery of the first slider 33 and the second slider 34 are both set to be an acute-angled inverted blunt shape, the surfaces of the first slider 33 and the second slider 34 are both provided with pressure sensors 4, and the first screw rod 31 and the second screw rod 32 are both sleeved with multiple nuts 5, and the multiple nuts are used to prevent the threaded rod from rotating while further limiting the positions of the first slider and the second slider, and the first slider 33 and the second slider 34 are both provided with positioning holes at the ends back to back, and positioning pins are inserted in the positioning holes, and the first slider 33 and the second slider 34 are both provided with dovetail grooves at the ends close to each other, the dovetail grooves are connected to the positioning holes, and end surface positioning blocks are slidably installed in the dovetail grooves.

[0024] like Figure 1-Figure 2 As shown, a lug plate 6 is provided at the middle position of the bottom of the accommodating groove 2 , an arc groove is provided at the top of the lug plate 6 , and a magnet 7 is provided inside the lug plate 6 .

[0025] Specific implementation process: The relative distance between the first screw and the second screw can be adjusted by rotating the first screw and the second screw, and the positions of the first screw and the second screw in the accommodating groove can be adjusted, so that the device can adapt to shaft parts within a larger size range, avoiding the problem of needing to re-process the positioning fixture of the corresponding size when the size fluctuates slightly, greatly saving the material cost of the fixture, and the thread itself has a high tightness, which can fully meet the effect of processing and positioning.

[0026] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A positioning tool for automatic feeding of shaft parts, comprising a positioning plate (1), characterized in that: A plurality of accommodating grooves (2) are evenly arranged on the positioning plate (1), and a limiter (3) is arranged in each of the accommodating grooves (2). The limiter (3) comprises a first screw rod (31), a second screw rod (32), a first slider (33) and a second slider (34). The first screw rod (31) and the second screw rod (32) are symmetrically arranged in the accommodating groove (2). The first screw rod (31) and the second screw rod (32) are both arranged horizontally. The accommodating groove (2) is provided with threaded holes corresponding to the first screw rod (31) and the second screw rod (32). The first slider (33) is arranged at one end of the first screw rod (31) close to the second screw rod (32), and the second slider (34) is arranged at one end of the second screw rod (32) close to the first screw rod (31). The peripheries of the first slider (33) and the second slider (34) are both arranged in an acute angle inverted blunt shape. Pressure sensors (4) are arranged on the surfaces of the first slider (33) and the second slider (34).

2. The positioning tool for automatic feeding of shaft parts according to claim 1 is characterized in that: A plurality of nuts (5) are sleeved on the first screw rod (31) and the second screw rod (32).

3. The positioning tool for automatic feeding of shaft parts according to claim 1 is characterized in that: An ear plate (6) is provided at the middle position of the bottom of the accommodating groove (2), and an arc-shaped groove is provided at the top of the ear plate (6).

4. A positioning tool for automatic feeding of shaft parts according to claim 3, characterized in that: A magnet (7) is arranged inside the ear plate (6).

5. The positioning tool for automatic feeding of shaft parts according to claim 1 is characterized in that: The ends of the first slider (33) and the second slider (34) that are back to back are each provided with a positioning hole, a positioning pin is inserted into the positioning hole, and the ends of the first slider (33) and the second slider (34) that are close to each other are each provided with a dovetail groove, and the dovetail groove is connected to the positioning hole.

6. A positioning tool for automatic feeding of shaft parts according to claim 5, characterized in that: End surface positioning blocks are slidably installed in the dovetail grooves.

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