Pneumatic positioning device for precision part

Abstract

The utility model provides a pneumatic positioning device for precision parts. The pneumatic positioning device for the precision part comprises a mounting plate and a workpiece body, wherein a positioning mechanism and a guide mechanism are arranged on the mounting plate; the positioning mechanism comprises an air cylinder, the air cylinder is fixedly mounted on the mounting plate, the output end of the air cylinder is fixedly connected with a positioning plate, the positioning plate is slidably connected with a guide pin, the guide pin is slidably sleeved with a positioning rod, the positioning rod is fixedly connected with the positioning plate, the rear end of the guide pin is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the air cylinder. The rear end of the positioning rod is fixedly connected with a spring, and the other end of the spring is fixedly connected with the surface of one side of the mounting plate; and the guide mechanism comprises a mounting seat, and the mounting seat is fixedly mounted on the mounting plate. The pneumatic positioning device for the precision part has the advantages that workpieces can be quickly positioned and clamped, and meanwhile the situation that the surfaces of the workpieces are not attached can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, especially relates to a pneumatic positioning device for precision parts. BACKGROUND

[0002] In some mechanical processing workshops, the most commonly used positioning and clamping device for mechanical workpieces is used during the machining process of the mechanical workpieces. The positioning and clamping device can stably position the workpieces for processing, which facilitates the technicians to perform polishing, installation, machining and other operations on the workpieces, and the firm positioning can ensure the safety of the workpieces during machining. Therefore, the machining positioning device for mechanical workpieces plays a crucial role in mechanical processing.

[0003] However, in the current workpiece production workshop, for workpieces with high hole position precision, hole positioning is often used. Screw hole positioning generally uses bolt tightening positioning. This positioning method is not only time-consuming and labor-intensive, but also inefficient.

[0004] Therefore, it is necessary to provide a new pneumatic positioning device for precision parts to solve the above technical problems. SUMMARY

[0005] The technical problem solved by the utility model is to provide a pneumatic positioning device for precision parts, which can quickly position and clamp workpieces and avoid the non-adhesion of workpieces to each other.

[0006] To solve the above technical problems, the pneumatic positioning device for precision parts provided by the utility model comprises a mounting plate and a workpiece body, and the mounting plate is provided with a positioning mechanism and a guide mechanism.

[0007] The positioning mechanism comprises a gas cylinder, the gas cylinder is fixedly installed on the mounting plate, the output end of the gas cylinder is fixedly connected with a positioning plate, a guide pin is slidably connected to the positioning plate, a positioning rod is slidably sleeved on the guide pin, the positioning rod is fixedly connected with the positioning plate, the rear end of the guide pin is fixedly connected with a connecting rod, the rear end of the positioning rod is fixedly connected with a spring, and the other end of the spring is fixedly connected with one side surface of the mounting plate.

[0008] The guide mechanism comprises a mounting seat, the mounting seat is fixedly installed on the mounting plate, a linear bearing is fixedly connected to the mounting seat, a guide rod is slidably installed in the linear bearing, a bolt is threadedly connected to the front end of the guide rod, and the guide rod is fixedly connected with the positioning plate through the bolt.

[0009] As a further scheme of the utility model, a plurality of screw holes are formed in the bottom surface of the mounting plate, and two supporting plates are fixedly connected to the mounting plate.

[0010] As a further scheme of the utility model, the guide pin, the positioning rod, the connecting rod and the spring form a positioning assembly, and four groups of the positioning assembly are arranged in a matrix on the positioning plate.

[0011] As a further scheme of the utility model, the guide mechanism is provided with two groups, and the two groups of guide mechanisms are symmetrically distributed about the axis of the positioning plate.

[0012] As a further scheme of the utility model, the rear end of the guide rod is provided with a limiting plate, and the side adjacent to the limiting plate of the mounting seat is provided with a gasket.

[0013] As a further scheme of the utility model, four positioning holes are formed in the workpiece body, and the guide pin and the positioning hole are one-to-one correspondingly arranged.

[0014] Compared with the related art, the pneumatic positioning device for precision parts has the following beneficial effects:

[0015] 1. The positioning mechanism is arranged, the positioning plate is pushed out by the starting cylinder, the guide pin is synchronously pushed out to pass through the positioning hole on the workpiece body to realize positioning, a plurality of positioning holes on the workpiece body can be positioned at one time, the working time is shortened, and the working efficiency is improved.

[0016] 2. The guide mechanism is arranged, when the positioning mechanism is pushed out, the guide rod slides in the linear bearing, guides and limits the positioning mechanism, and the linear stroke of the positioning mechanism is limited by the limiting plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to facilitate the understanding of those skilled in the art, the utility model is further described below with reference to the drawings.

[0018] Figure 1 The overall structure schematic view of the pneumatic positioning device for precision parts is provided.

[0019] Figure 2 The main body structure schematic view of the pneumatic positioning device for precision parts is provided.

[0020] Figure 3 The expanded structure schematic view of the pneumatic positioning device for precision parts is provided.

[0021] Figure 4 The positioning mechanism structure schematic view of the pneumatic positioning device for precision parts is provided.

[0022] Figure 5 The guide mechanism structure schematic view of the pneumatic positioning device for precision parts is provided.

[0023] In the diagram: 1. Mounting plate; 2. Workpiece body; 3. Cylinder; 4. Positioning plate; 5. Guide pin; 6. Positioning rod; 7. Connecting rod; 8. Spring; 9. Mounting seat; 10. Linear bearing; 11. Guide rod; 12. Bolt; 13. Screw hole; 14. Support plate. Detailed Implementation

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 This is a schematic diagram of the overall structure of the pneumatic positioning device for precision parts according to this utility model; Figure 2 This is a schematic diagram of the main structure of the pneumatic positioning device for precision parts according to this utility model; Figure 3 This is a schematic diagram of the unfolded structure of the pneumatic positioning device for precision parts according to this utility model; Figure 4 A schematic diagram of the positioning mechanism of the pneumatic positioning device for precision parts provided by this utility model; Figure 5 A schematic diagram of the guide mechanism structure of the pneumatic positioning device for precision parts provided by this utility model. The pneumatic positioning device for precision parts includes: a mounting plate 1 and a workpiece body 2, wherein the mounting plate 1 is provided with a positioning mechanism and a guide mechanism;

[0025] The positioning mechanism includes a cylinder 3, which is fixedly mounted on the mounting plate 1. The output end of the cylinder 3 is fixedly connected to a positioning plate 4. A guide pin 5 is slidably connected to the positioning plate 4. A positioning rod 6 is slidably sleeved on the guide pin 5. The positioning rod 6 is fixedly connected to the positioning plate 4. A connecting rod 7 is fixedly connected to the rear end of the guide pin 5. A spring 8 is fixedly connected to the rear end of the positioning rod 6. The other end of the spring 8 is fixedly connected to one side surface of the mounting plate 1.

[0026] The guiding mechanism includes a mounting base 9, which is fixedly mounted on a mounting plate 1. A linear bearing 10 is fixedly connected to the mounting base 9. A guide rod 11 is slidably mounted inside the linear bearing 10. A bolt 12 is threadedly connected to the front end of the guide rod 11. The guide rod 11 is fixedly connected to the positioning plate 4 by the bolt 12.

[0027] like Figure 2 As shown, the bottom surface of the mounting plate 1 has multiple screw holes 13, and two support plates 14 are fixedly connected to the mounting plate 1.

[0028] The screw hole 13 allows the device to be fixedly installed on the production line, and the support plate 14 extends the service life of the device.

[0029] like Figure 2As shown, the guide pin 5, positioning rod 6, connecting rod 7 and spring 8 form a positioning assembly, and the positioning assembly is arranged in a matrix of four groups on the positioning plate 4.

[0030] By setting up four sets of positioning components, the stability of the positioning mechanism during operation can be increased when the positioning mechanism positions the workpiece body 2.

[0031] like Figure 3 As shown, the guide mechanism is provided in two sets, and the two sets of guide mechanisms are symmetrically distributed about the axis of the positioning plate 4.

[0032] By setting up two sets of guiding mechanisms, the positioning mechanism can be guided and limited.

[0033] like Figure 4 As shown, a limiting plate is provided at the rear end of the guide rod 11, and a gasket is provided on the side of the mounting base 9 adjacent to the limiting plate;

[0034] The limiting plate can limit the guide mechanism, and the shims can reduce the impact and vibration between the guide rod 11 and the mounting base 9, thus extending the service life of the equipment.

[0035] like Figure 2 As shown, the workpiece body 2 has four positioning holes, and the guide pin 5 is set in a one-to-one correspondence with the positioning holes;

[0036] By setting the guide pin 5 to correspond one-to-one with the positioning hole, the guide pin 5 can pass through the positioning hole to position the workpiece body 2.

[0037] The working principle of the pneumatic positioning device for precision parts provided by this utility model is as follows:

[0038] First step: When in use, first install the device on the production line through the screw hole 13. When the workpiece body 2 needs to be positioned, start the cylinder 3 to push out the positioning plate 4. At the same time, the spring 8 is stretched and deformed, and the guide pin 5 is pushed out to pass through the positioning hole on the workpiece body 2 to achieve positioning. Then the positioning plate 4 contacts the workpiece body 2. Continue to push out the workpiece body 2 until it is pressed against another workpiece. The part of the guide pin 5 that exceeds the workpiece body 2 will be pushed back by the other workpiece to avoid the workpieces not fitting together. After positioning is completed, the cylinder 3 returns, and at the same time the rear end of the connecting rod 7 contacts the mounting plate 1, pushing the connecting rod 7 and the guide pin 5 back to their original positions.

[0039] The second step: When the positioning mechanism is ejected, the guide rod 11 slides in the linear bearing 10 to guide and limit the positioning mechanism, and at the same time, the linear travel of the positioning mechanism is limited by the limiting plate.

[0040] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0041] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0042] 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, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A pneumatic positioning device for precision parts, characterized in that, It includes mounting plate and workpiece body, and the mounting plate is provided with positioning mechanism and guide mechanism; The positioning mechanism includes a cylinder fixedly installed on the mounting plate, an output end of the cylinder is fixedly connected with a positioning plate, a guide pin is slidably connected to the positioning plate, a positioning rod is slidably sleeved on the guide pin, the positioning rod is fixedly connected with the positioning plate, a connecting rod is fixedly connected to a rear end of the guide pin, a spring is fixedly connected to a rear end of the positioning rod, and another end of the spring is fixedly connected with a side surface of the mounting plate; The guide mechanism includes a mounting seat fixedly installed on the mounting plate, a linear bearing fixedly connected to the mounting seat, a guide rod slidably installed in the linear bearing, a bolt threadedly connected to a front end of the guide rod, and the guide rod fixedly connected with the positioning plate through the bolt.

2. The precision part pneumatic positioning device of claim 1, wherein: A plurality of screw holes are formed in a bottom surface of the mounting plate, and two supporting plates are fixedly connected to the mounting plate.

3. The precision part pneumatic positioning device of claim 1, wherein: The guide pin, the positioning rod, the connecting rod and the spring form a positioning assembly, and four groups of the positioning assembly are arranged and distributed in a matrix manner on the positioning plate.

4. The precision part pneumatic positioning device of claim 1, wherein: The guide mechanism is provided with two groups, and the two groups of guide mechanisms are symmetrically distributed about an axis of the positioning plate.

5. The precision part pneumatic positioning device of claim 1, wherein: A limiting plate is arranged at a rear end of the guide rod, and a gasket is arranged on a side of the mounting seat adjacent to the limiting plate.

6. The precision part pneumatic positioning device of claim 1, wherein: Four positioning holes are formed in the workpiece body, and the guide pin and the positioning hole are one-to-one correspondingly arranged.

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