CN207710351U - a positioning tool - Google Patents

Abstract

The utility model provides a location frock, belongs to machine parts machining field, its characterized in that: comprises a main body; both ends of the main body are provided with a positioning groove; a positioning screw is arranged in the positioning groove; a reference hole is arranged in the center of the main body; a loading and unloading groove is respectively arranged on the two sides of the reference hole on the upper surface of the main body; the loading and unloading groove is vertical to the positioning groove; a plurality of regularly arranged positioning pin holes are formed between the positioning groove and the loading and unloading groove; a positioning pin is arranged in the positioning pin hole; a positioning groove is formed in the lower surface of the main body along the direction of the positioning groove, and a positioning key is arranged in the positioning groove. The pin positioning is adopted, the applicable positioning pin holes can be flexibly selected according to the size of a machined workpiece, the manual clamping time is greatly shortened in the machining process, the workpiece is quickly fastened, the machine tool, the cutter and the workpiece are kept at correct relative positions, the precision and the quality of parts of mechanical products are guaranteed, the pin positioning device is multipurpose, and the cost is effectively reduced.

Description

a positioning tool

technical field

The utility model belongs to the field of mechanical parts processing, in particular to a positioning tool.

Background technique

Under the general trend of the increasing development of heavy industry, mechanical parts are becoming more and more diverse and complex, and modern production often updates the products manufactured by machinery, so the types of workpieces produced in small batches and multi-variety in modern production account for the majority of the total number of workpieces. However, general enterprises are accustomed to using traditional processing methods and mechanical fixtures, resulting in high processing efficiency and low cost. The traditional processing method is that when the workpiece is processed on the machine tool, in order to make the surface of the workpiece meet the technical requirements such as the size, geometric shape and mutual position accuracy with other surfaces specified in the drawing, the workpiece must be installed (positioned), Clamp (clamp). Each processing requires tooling according to the size of the workpiece, which is costly and inefficient.

Contents of the invention

The utility model aims to solve the above problems, and provides a quick positioning tool.

The positioning tool described in the utility model includes a main body; a positioning groove is arranged at both ends of the main body; a positioning screw is arranged in the positioning groove; a reference hole is arranged in the center of the main body, and the reference hole is used as a part for processing The origin, the tooling is clamped once, and there is no need to repeatedly find the machining reference origin when the processed parts are clamped again, which can greatly improve the processing efficiency; on the upper surface of the main body, a loading and unloading groove is respectively set on both sides of the reference hole; The loading and unloading groove can not only reduce the contact area between the workpiece and the tooling, but also make the tooling and the workpiece fit closer. It can also facilitate loading and unloading of workpieces. The loading and unloading groove and the positioning groove are vertically arranged; a number of regularly arranged positioning pin holes are arranged between the positioning groove and the loading and unloading groove; positioning pins are arranged in the positioning pin holes; the upper edge of the lower surface of the main body A positioning groove is arranged in the direction of the positioning groove, and a positioning key is arranged in the positioning groove, and the positioning key is used for fast clamping and alignment of the machine tool and the tooling.

In the positioning tool described in the utility model, the positioning pin hole is set as a threaded hole; the surface of the lower insertion end of the positioning pin is provided with a thread matching the internal thread of the positioning pin hole.

In the positioning tool described in the utility model, the upper part of the positioning pin is set as a pin rod, which is convenient to cooperate with various positioning holes on the workpiece.

In the positioning tool described in the utility model, the upper end of the positioning pin hole is provided with a chamfer. Chamfers are effective in preventing interference between part openings and positioning tooling.

In the positioning tool described in the utility model, the positioning screw is composed of a T-shaped bolt and a nut. Through its fast connection and fixation with the T-slot of the machine tool, it improves operational efficiency.

In the positioning tool described in the utility model, the positioning groove is provided with a groove in the vertical direction; the height of the groove is equal to the height of the aforementioned nut. The setting of this groove makes when the positioning tool described in the utility model is fixed on the machine tool by the positioning screw, the nut is located under the upper surface of the main body, which will not affect the part blank to be processed, so that it is convenient to use.

The positioning tool described in the utility model adopts pin positioning and can flexibly select suitable positioning pin holes according to the size of the workpiece to be processed, which greatly shortens the manual clamping time during the machining process, and quickly tightens the workpiece, so that the machine tool, tool, and workpiece Maintain the correct relative position to ensure the accuracy and quality of mechanical product parts, and one package for multiple purposes, effectively reducing costs.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the positioning tool described in the present invention.

Fig. 2 is a schematic diagram of the structure of the lower surface of the positioning tool described in the present invention.

Fig. 3 is a schematic diagram of the use state of the positioning tool described in the present invention.

Among them, 1-part, 2-part blank, 3-locating pin, 4-main body, 5-nut, 6-locating key, 7-T-bolt, 8-locating pin hole, 9-reference hole, 10-loading and unloading groove , 11-positioning groove.

Detailed ways

The positioning tool described in the utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

The positioning tooling described in the utility model, as shown in Figure 1, comprises main body 4; The two ends of described main body 4 are all provided with a positioning groove 11; Positioning groove 11 is provided with a groove in vertical direction; The groove of described groove The height is equal to the height of the aforementioned nut 5; a positioning screw is arranged in the positioning groove 11, and the positioning screw is composed of a T-bolt 7 and a nut 5; a diameter of 16 mm reference hole 9 is set in the center of the main body 4; On the upper surface of the main body 4, a loading and unloading groove 10 is respectively arranged on both sides of the reference hole 9; the loading and unloading groove 10 is vertically arranged with the positioning groove 11; Aligned positioning pin holes 8; positioning pins 3 are arranged in the positioning pin holes 8; as shown in Figure 2, a positioning groove is set along the positioning groove 11 direction on the lower surface of the main body 4, and the positioning groove A positioning key 6 is arranged inside. The positioning pin hole 8 is set as an M6 threaded hole; the upper part of the positioning pin 3 is set as a pin rod, and the surface of the insertion end of the lower part is provided with a thread matching the inner thread of the positioning pin hole 8 . The upper end of the positioning pin hole 8 is provided with a chamfer of 1.5mm*1.5mm.

When processing part 1, you can choose which positioning pin hole 8 to use as the positioning hole according to the size of the blank 2 of the part and the pin hole prefabricated on the blank in advance. The grooves are closely matched, and there is no need to align the tooling, and then the connecting T-bolt 7 is pressed against the tooling on the machine tool table through the nut 5. As shown in Figure 3, the part blank 2 is installed on the main body 4 of the tooling according to the hole diameter and hole distance on the workpiece, and the positioning pin 3 and the positioning pin hole 8 on the main body 4 are screwed together to prevent vibration during processing The pin moves up, and the part 1 can be processed by pressing the part 1 with a pressure plate.

Claims (6)

1. A positioning tool, characterized in that: it comprises a main body (4); a positioning groove (11) is arranged at both ends of the main body (4); a positioning screw is arranged in the positioning groove (11); the A reference hole (9) is set in the center of the main body (4); on the upper surface of the main body (4), a loading and unloading groove (10) is respectively arranged on both sides of the reference hole (9); the loading and unloading groove (10) is connected with the The positioning groove (11) is arranged vertically; several regularly arranged positioning pin holes (8) are arranged between the positioning groove (11) and the loading and unloading groove (10); the positioning pin holes (8) are provided with positioning Pin (3); a positioning groove is arranged on the lower surface of the main body (4) along the direction of the positioning groove (11), and a positioning key (6) is arranged in the positioning groove. 2. The positioning tool according to claim 1, characterized in that: the positioning pin hole (8) is set as a threaded hole; the surface of the lower insertion end of the positioning pin (3) is provided with a hole (8) Internal thread matching thread. 3. The positioning tool according to claim 2, characterized in that: the upper part of the positioning pin (3) is set as a pin. 4. The positioning tool according to claim 2, characterized in that: the upper end of the positioning pin hole (8) is provided with a chamfer. 5. The positioning tool according to claim 1, characterized in that: the positioning screw is composed of a T-bolt (7) and a nut (5). 6. The positioning tool according to claim 5, characterized in that: the positioning groove (11) is provided with a groove in the vertical direction; the height of the groove is equal to the height of the nut (5).