Positioning and clamping device for piston pin hole seat

Abstract

The utility model relates to the field of piston machining equipment, in particular to a positioning and clamping device for a piston pin hole seat. The positioning and clamping device comprises a clamping structure suitable for clamping a workpiece; the correcting rod is suitable for being inserted into a workpiece pin hole; the positioning rod is mounted on the clamping structure; the proximity switch is mounted on the clamping structure and is close to the positioning rod; the proximity switch is configured to give out light reminding when the correcting rod abuts against the positioning rod. The positioning and clamping structure for the piston pin hole seat is provided with the proximity switch, so that an operator can correctly determine that a workpiece is installed in place, the phenomenon that the perpendicularity of the inner end face of the milling pin hole seat and the axis of a pin hole is out of tolerance is avoided, and the machining quality of the workpiece is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of piston processing equipment, and specifically to a positioning and clamping device for piston pin hole seats. Background Technology

[0002] High-end two-stroke pistons have high requirements for the form and position tolerances of the inner end face of the pin hole seat. In order to ensure the accuracy of this part, a milling process of the inner end face of the pin hole seat needs to be added during the machining process.

[0003] In the existing machining process, improper installation during piston alignment often results in the perpendicularity of the inner end face of the milled pin hole seat to the pin hole axis exceeding the tolerance, affecting the machining quality of the piston.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] To improve or solve the technical problem of improper installation during piston alignment in existing technologies, this utility model provides a positioning and clamping device for a piston pin hole seat. The positioning and clamping device includes: a clamping structure suitable for clamping a workpiece; an alignment rod suitable for insertion into the workpiece pin hole; a positioning rod mounted on the clamping structure; and a proximity switch mounted on the clamping structure and close to the positioning rod. The proximity switch is configured to emit a light warning when the alignment rod abuts against the positioning rod.

[0006] This utility model discloses a positioning and clamping structure for a piston pin hole seat, comprising a clamping structure, a correction rod, a positioning rod, and a proximity switch. The proximity switch emits a light indicator when the correction rod and positioning rod abut, allowing the operator to accurately confirm the workpiece is properly installed, thus preventing deviations in the perpendicularity between the inner end face of the milled pin hole seat and the pin hole axis. The clamping structure clamps the workpiece after it is installed, facilitating subsequent machining. Through these features, the positioning and clamping structure for a piston pin hole seat, incorporating a proximity switch, ensures the operator can accurately confirm the workpiece is properly installed, preventing deviations in the perpendicularity between the inner end face of the milled pin hole seat and the pin hole axis, and guaranteeing the machining quality of the workpiece.

[0007] Furthermore, the clamping structure is a three-jaw chuck.

[0008] Furthermore, a mounting cylinder suitable for mating with the workpiece is provided in the middle of the clamping structure.

[0009] Furthermore, a pull rod is provided at one end of the correction rod.

[0010] Furthermore, a mounting plate is provided on the clamping structure, and the proximity switch is mounted on the mounting plate.

[0011] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0012] The proximity switch can emit a light to remind the operator when the correction rod and the positioning rod are in contact, so that the operator can accurately determine that the workpiece is installed in place, thereby avoiding the phenomenon of the perpendicularity of the inner end face of the milled pin hole seat and the pin hole axis being out of tolerance; the clamping structure can clamp the workpiece after it is installed in place, so as to facilitate the subsequent processing of the workpiece. Attached Figure Description

[0013] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0014] Figure 1 This is a schematic diagram of an embodiment of a positioning and clamping device for a piston pin hole seat according to the present invention;

[0015] Figure 2 This is another schematic diagram of an embodiment of the positioning and clamping device for piston pin hole seat according to the present invention.

[0016] List of reference numerals in the attached diagram: 1. Clamping structure; 2. Mounting cylinder; 3. Correction rod; 31. Pull rod; 4. Positioning rod; 5. Proximity switch; 6. Mounting plate. Detailed Implementation

[0017] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0018] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] To improve or solve the technical problem of improper installation during piston alignment in the prior art, this utility model provides a positioning and clamping device for a piston pin hole seat. The positioning and clamping device includes: a clamping structure 1, suitable for clamping the workpiece; an alignment rod 3, suitable for insertion into the workpiece pin hole; a positioning rod 4, mounted on the clamping structure 1; and a proximity switch 5, mounted on the clamping structure 1 and close to the positioning rod 4; the proximity switch 5 is configured to emit a light warning when the alignment rod 3 and the positioning rod 4 come into contact.

[0021] Figure 1 This is a schematic diagram of an embodiment of a positioning and clamping device for a piston pin hole seat according to the present invention. Figure 2 This is another schematic diagram of an embodiment of the positioning and clamping device for a piston pin hole seat according to the present invention. Figure 1 and Figure 2 As shown, in one or more embodiments, the positioning and clamping device for piston pin hole seat of the present invention includes: clamping structure 1, correction rod 3, positioning rod 4 and proximity switch 5.

[0022] See also Figure 1 and Figure 2 In one or more embodiments, the clamping structure 1 is a three-jaw chuck. The workpiece is clamped by the three jaws of the three-jaw chuck. Further, a mounting cylinder 2 is provided in the middle of the three-jaw chuck, the peripheral wall of which abuts against the three jaws, and its upper end abuts against the workpiece. The correction rod 3 is approximately cylindrical and matches the pin hole of the workpiece. Exemplarily, when the correction rod 3 coincides with one jaw in the vertical direction, the workpiece is installed in place. Further, a pull rod 31 is provided at one end of the correction rod 3, which facilitates pulling out and inserting the correction rod 3. Further, a positioning rod 4 is mounted on the clamping structure 1 and extends vertically upward. Further, a proximity switch 5 is mounted on the clamping structure 1. Specifically, a mounting plate 6 is provided on the clamping structure 1, and the proximity switch 5 is mounted on the mounting plate 6. When the correction rod 3 abuts against the positioning rod 4, the proximity switch 5 emits a light warning.

[0023] The working principle of this utility model is as follows:

[0024] When the alignment rod 3 rests against the positioning post, the workpiece is installed in place, the proximity switch 5 lights up red, the clamping structure 1 clamps the workpiece, the alignment rod 3 is pulled out, and the workpiece processing begins.

[0025] When the correction rod 3 is not close to the positioning post, the proximity switch 5 light will not illuminate, making it impossible to process the workpiece.

[0026] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A positioning and clamping device for a piston pin hole seat, characterized in that, include: Clamping structure (1) is suitable for clamping workpieces; The correction rod (3) is suitable for insertion into the pin hole of the workpiece; The positioning rod (4) is installed on the clamping structure (1); A proximity switch (5) is mounted on the clamping structure (1) and close to the positioning rod (4); the proximity switch (5) is configured to emit a light warning when the correction rod (3) abuts against the positioning rod (4).

2. The positioning and clamping device for a piston pin hole seat according to claim 1, characterized in that, The clamping structure (1) is a three-jaw chuck.

3. A positioning and clamping device for a piston pin hole seat according to claim 2, characterized in that, A mounting cylinder (2) suitable for matching the workpiece is provided in the middle of the clamping structure (1).

4. A positioning and clamping device for a piston pin hole seat according to claim 1, characterized in that, A pull rod (31) is provided at one end of the correction rod (3).

5. A positioning and clamping device for a piston pin hole seat according to claim 1, characterized in that, A mounting plate (6) is provided on the clamping structure (1), and the proximity switch (5) is mounted on the mounting plate (6).

Images