A small part center locator

Abstract

The utility model discloses a small -size part center positioner belongs to surveying and positioning technical field. The positioner is by left and right positioning clamping plate, left and right positioning lever, middle telescopic link, center point marker four big parts constitute. Among them, left and right positioning subassembly is by clamping plate and positioning lever and is used for fixing part and determining part center in the positioning process, middle telescopic link is used for extending clamping plate position through telescoping to left and right clamping plate in the positioning process, can realize to the positioning of small -size part of different size, center point marker is by marker main part, marker rod and is used for marking part center point after positioning. The utility model discloses simple operation, experimental error is small, can very intuitively simple positioning mark part center point, and the positioning effect is obvious.

Description

Technical Field

[0001] This utility model relates to a small part center locator, and more particularly to a small part center locator that positions and marks the center point of a small cuboid or cube part by extension and retraction, belonging to the field of measurement and positioning technology. Background Technology

[0002] According to relevant literature, the center point locators currently developed are complex to operate, have large positioning errors, and have insignificant positioning effects, which increases the difficulty of machining measurement and positioning and makes them unsuitable for use in machining measurement and positioning work.

[0003] However, judging from the center point locators currently used in mechanical processing measurement and positioning, the positioning function of the "center point locators" on the market is not strong. They can only locate parts of a fixed size, and their structure is relatively simple, with large positioning errors, difficult operation, and insufficient positioning effect. Utility Model Content

[0004] The purpose of this invention is to overcome the cumbersome and slow process of measuring the center of parts in existing machining processes. This invention provides a small part center locator that can freely extend and retract to hold the part according to its size during machining measurement. Then, a center point marker marks the center point of the part, thereby quickly and accurately marking the center point of the small part.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a small part center locator, comprising a left positioning plate 1, a right positioning plate 2, a middle telescopic rod 3, a left positioning rod 4, a right positioning rod 5, and a center point marker; the left positioning plate 1 and the right positioning plate 2 are telescopically connected by the middle telescopic rod 3; the left positioning rod 4 is installed at a 45-degree angle to the left positioning plate 1, and the right positioning rod 5 is installed at a 45-degree angle to the right positioning plate 2; both the left positioning rod 4 and the right positioning rod 5 are provided with positioning openings and always maintain planar sliding contact; a sliding groove is provided at the positioning opening; the intersection of the left positioning rod 4 and the right positioning rod 5 is the positioning center; and the center point marker is installed at the positioning center.

[0006] Specifically, the left positioning plate 1 and the right positioning plate 2 are L-shaped and placed opposite each other. Both of their base plates are provided with T-shaped sliding grooves, and the two ends of the middle telescopic rod 3 are slidably installed in the T-shaped sliding grooves on both sides.

[0007] Specifically, the bottom of the left positioning rod 4 is fixed at a 45-degree angle in the cuboid positioning slot at the bottom of the left positioning plate 1. The left positioning rod 4 has a positioning opening with a circular groove. The bottom of the right positioning rod 5 is fixed at a 45-degree angle in the cuboid positioning slot at the bottom of the right positioning plate 2. The right positioning rod 5 has a positioning opening with a circular groove.

[0008] Specifically, the center point marker consists of a marker body 6 and a marker rod 7. The marker body 6 is square. The front and rear side walls of the marker body 6 are provided with protrusions corresponding to the sliding groove on the left positioning rod 4, and the left and right side walls are provided with protrusions corresponding to the sliding groove on the right positioning rod 5. The marker body 6 has a marking hole in the middle, and the middle of the marking hole has an internal thread. The top of the marker rod 7 is provided with a decorative knob element, the middle of which has an external thread corresponding to the internal thread, and the bottom is a conical pin. When the marker rod 7 is rotated downwards, the conical pin extends out of the marker body 6.

[0009] The advantages of this utility model are: reasonable structure, simple operation, convenient use, telescopic function, can position parts of different sizes, with small positioning error and obvious positioning effect, which is of great help in the process of positioning the center point of small parts in machining measurement. Attached Figure Description

[0010] Figure 1 This is an axonometric view and a partial enlarged view of the three-dimensional structure of this utility model; Figure 2 This is a three-dimensional front view of the present invention; Figure 3 This is a schematic diagram of the marker device of this utility model; Figure 4 This is a front view of the marker device of this utility model; Figure 5 for Figure 4 A sectional view along line AA.

[0011] In the diagram: 1-Left positioning plate, 2-Right positioning plate, 3-Middle telescopic rod, 4-Left positioning rod, 5-Right positioning rod, 6-Marker body, 7-Marker rod. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] Example 1: As Figure 1-4As shown, a small part center locator includes a left positioning plate 1, a right positioning plate 2, a central telescopic rod 3, a left positioning rod 4, a right positioning rod 5, and a center point marker. The left positioning plate 1 and the right positioning plate 2 are telescopically connected by the central telescopic rod 3. The left positioning rod 4 forms a 45-degree angle with the left positioning plate 1, and the right positioning rod 5 forms a 45-degree angle with the right positioning plate 2. Both the left positioning rod 4 and the right positioning rod 5 are provided with positioning openings, and they always maintain planar sliding contact. A sliding groove is provided at the positioning opening. The intersection of the left positioning rod 4 and the right positioning rod 5 is the positioning center, and the center point marker is installed at the positioning center. The overall structure is reasonable and intuitive, which is conducive to quickly and accurately locating and marking the center point of the part in machining measurement.

[0014] Furthermore, the left positioning plate 1 and right positioning plate 2 are L-shaped and placed opposite each other, that is, the left positioning plate 1 and right positioning plate 2 are set at a 90-degree angle. The width and height of the left and right positioning plates are relatively large, allowing them to stably and directly clamp the left and right sides of the part to be positioned, reducing errors caused by factors such as angle. The base plates of both the left and right positioning plates 1 and 2 are hollow, with T-shaped grooves inside each hollow section. The two ends of the central telescopic rod 3 are slidably installed in the T-shaped grooves on both sides. The central telescopic rod 3 is the connecting element between the left and right positioning plates 1 and 2. The T-shaped grooves act as limiters, facilitating the left and right extension and retraction of the central telescopic rod 3. This allows the small part center locator to freely extend and retract to select the appropriate size, while preventing the central telescopic rod 3 from falling off. This enables the small part center locator to position parts of different sizes, increasing its application range and reducing positioning errors.

[0015] Furthermore, the bottom of the left positioning rod 4 is fixed at a 45-degree angle within a cuboid positioning slot at the bottom of the left positioning plate 1. The left positioning rod 4 has a positioning opening with a circular groove. The bottom of the right positioning rod 5 is fixed at a 45-degree angle within a cuboid positioning slot at the bottom of the right positioning plate 2. The right positioning rod 5 also has a positioning opening with a circular groove. As the left and right positioning plates freely extend and retract, the left and right positioning rods also extend and retract accordingly. This allows for accurate positioning of parts of different sizes to the center point of the desired part, as the positioning rods move.

[0016] Furthermore, the center point marker consists of a marker body 6 and a marker rod 7. The marker body 6 is square, with circular protrusions on its front and rear side walls corresponding to the sliding grooves on the left positioning rod 4, and circular protrusions on its left and right side walls corresponding to the sliding grooves on the right positioning rod 5. That is, the marker body 6 is simultaneously mounted on both the left and right positioning rods 4 and 5, achieving a sliding connection through the circular sliding grooves at the positioning openings. The marker body 6 has a marking hole in the middle, with an internal thread in the center. The marker rod 7 has a decorative knob element at the top, an external thread corresponding to the internal thread in the middle, and a conical pin at the bottom. When the marker rod 7 rotates downwards, the conical pin extends out of the marker body 6. The center point marker is positioned at the intersection of the left and right positioning rods and can move with the extension and retraction of the small part locator. Regardless of how the small part locator extends and retracts, the center point marker will always be positioned at the intersection of the left and right positioning rods, making the positioning process more convenient, faster, and more accurate.

[0017] This utility model discloses a small part center locator that is lightweight and compact. After locking the part to be positioned, rotating the marker rod 7 can complete the positioning of the center point of the small part. It is simple to operate and the positioning process is convenient, fast and accurate.

[0018] The working principle of this utility model is as follows: In actual operation, because the left positioning rod 4 and the right positioning rod 5 are hollow in the middle, the intersection of the left positioning rod 4 and the right positioning rod 5 will form a hollow part. When the center point marker moves to the hollow position, after the left positioning plate 1 and the right positioning plate 2 lock the part to be positioned, the positioning center of the part is the intersection of the left positioning rod 4 and the right positioning rod 5. Then, after the positioning operator rotates the top knob element of the positioning rod 7, the conical pin on the positioning rod 7 will move downwards in a spiral motion. The positioning rod 7 moves downwards. When the marking rod 7 rotates to the bottom of the marking device body 6, the conical pin extends out of the marking device body 6, and the marking point on the conical pin at the bottom of the positioning rod 7 can contact the surface of the part to be positioned, marking the center point of the part to be positioned. The entire process of positioning and marking the center point of the part to be positioned is completed. In actual operation, it is simple and convenient, can quickly locate and mark the center point of the part, the positioning process is not prone to errors, and the positioning marking device can minimize positioning errors and ensure the accuracy of the positioning center.

[0019] As described above, those skilled in the art can make other simple modifications and variations based on the technical solution and concept of this utility model, and all such simple modifications and variations are within the protection scope of the claims of this utility model.

Claims

1. A small part center locator, characterized in that, It includes a left positioning plate (1), a right positioning plate (2), a middle telescopic rod (3), a left positioning rod (4), a right positioning rod (5), and a center point marker; the left positioning plate (1) and the right positioning plate (2) are connected by the middle telescopic rod (3), the left positioning rod (4) is installed at a 45-degree angle to the left positioning plate (1), the right positioning rod (5) is installed at a 45-degree angle to the right positioning plate (2), both the left positioning rod (4) and the right positioning rod (5) are provided with positioning ports and the two always maintain planar sliding contact, the positioning ports are provided with sliding grooves, the intersection of the left positioning rod (4) and the right positioning rod (5) is the positioning center, and the center point marker is installed at the positioning center.

2. The small part center locator according to claim 1, characterized in that: The left positioning plate (1) and the right positioning plate (2) are L-shaped and placed opposite each other. Both of them have T-shaped grooves inside their base plates. The two ends of the middle telescopic rod (3) are slidably installed in the T-shaped grooves on both sides.

3. A small part center locator according to claim 1, characterized in that: The bottom of the left positioning rod (4) is fixed at a 45-degree angle in the cuboid positioning slot at the bottom of the left positioning plate (1). The left positioning rod (4) has a positioning opening with a circular groove. The bottom of the right positioning rod (5) is fixed at a 45-degree angle in the cuboid positioning slot at the bottom of the right positioning plate (2). The right positioning rod (5) has a positioning opening with a circular groove.

4. A small part center locator according to claim 1 or 3, characterized in that: The center point marker consists of a marker body (6) and a marker rod (7). The marker body (6) is square. The front and rear side walls of the marker body (6) are provided with protrusions corresponding to the sliding groove on the left positioning rod (4), and the left and right side walls are provided with protrusions corresponding to the sliding groove on the right positioning rod (5). The marker body (6) has a marking hole in the middle, and the middle of the marking hole is provided with an internal thread. The top of the marker rod (7) is provided with a floral knob element, the middle is provided with an external thread corresponding to the internal thread, and the bottom is a conical pin. When the marker rod (7) is rotated downwards, the conical pin extends out of the marker body (6).

Images