CN-224223592-U - Grinding tool for piston rod cladding

Abstract

The application provides a grinding tool for a piston rod after cladding, which comprises a clamping body, a connecting piece and an abutting screw rod, wherein the connecting piece comprises an adjusting cylinder screwed on the clamping body, the inner end of the adjusting cylinder is inserted with a plug rod, the outer diameter of the plug rod is equal to the diameter of a pin hole of a flat part of the piston rod, and a positioning plate is arranged on the plug rod. Compared with the existing connecting piece, the technical scheme of the application is that the inserting rod is additionally arranged, and the inserting rod is continuously inserted into the pin hole along with the screwing of the adjusting cylinder until the positioning plate is abutted against the end part of the pin hole, so that the piston rod can be positioned along the axial direction of the pin hole, and the clamped stability of the piston rod can be further improved.

Inventors

• HUANG WEI
• ZHOU JUNHAI
• ZHAO HAIQIANG

Assignees

• 河南艾通科技股份有限公司

Dates

Publication Date

20260512

Application Date

20250528

Claims (10)

1. 1. The utility model provides a grinding frock after piston rod cladding, includes the centre gripping body, connecting piece and butt screw rod, its characterized in that, the connecting piece including spin in the adjustment section of thick bamboo of the centre gripping body, the inner grafting of adjustment section of thick bamboo has the spliced pole, the diameter of the pinhole of the flat portion of spliced pole external diameter equal piston rod is equipped with the locating plate on the spliced pole.
2. 2. The post-cladding piston rod grinding tool of claim 1, wherein the post-cladding piston rod grinding tool comprises a cylinder, The abutting screw rod is screwed at the axis of the clamping body.
3. 3. The post-cladding piston rod grinding tool of claim 2, wherein, The adjusting cylinder is arranged perpendicular to the abutting screw.
4. 4. A post-cladding piston rod grinding tool as defined in claim 3, wherein, The adjusting cylinders are symmetrically arranged on two sides of the clamping body.
5. 5. The post-cladding piston rod grinding tool of claim 4, wherein, The outer end of the adjusting cylinder is provided with a knob.
6. 6. The post-cladding piston rod grinding tool of claim 5, wherein, And a limiting groove is formed in the adjusting cylinder.
7. 7. The post-cladding piston rod grinding tool of claim 6, wherein, The limiting groove is parallel to the axis of the adjusting cylinder.
8. 8. The post-cladding piston rod grinding tool of claim 7, wherein, The outer wall of the plug rod is provided with a limit strip which is clamped with the limit groove.
9. 9. The post-cladding piston rod grinding tool of claim 8, wherein, The positioning plate is configured in a disk shape.
10. 10. The post-cladding piston rod grinding tool of claim 9, wherein, The locating plate and the plug-in rod are coaxially arranged.

Description

Grinding tool for piston rod cladding Technical Field The application relates to the technical field of piston rod machining, in particular to a grinding tool for a piston rod after cladding. Background When the piston rod is subjected to cladding post-processing, one processing mode is to firstly process the flat part of the piston rod and then process the magnetic ring hole, but when the magnetic ring hole is processed, the existing three-jaw chuck can only clamp two points on the circumference of the flat part, and the clamping stability cannot be ensured. The patent with publication number CN222404528U discloses a processing frock for pushing jack piston rod, and this processing frock sets up between chuck and piston rod, can improve the stability of centre gripping. However, since this patent does not have a positioning mechanism in the axial direction of the pin hole of the flat portion, the stability of the piston rod still needs to be improved. Disclosure of utility model In view of the above, an object of the present application is to provide a post-cladding grinding tool for positioning a piston rod in an axial direction of a pin hole of a flat portion. The technical scheme of the application is as follows: The application provides a grinding tool for a piston rod after cladding, which comprises a clamping body, a connecting piece and an abutting screw rod, wherein the connecting piece comprises an adjusting cylinder screwed on the clamping body, the inner end of the adjusting cylinder is inserted with a plug rod, the outer diameter of the plug rod is equal to the diameter of a pin hole of a flat part of the piston rod, and a positioning plate is arranged on the plug rod. Compared with the existing connecting piece, the technical scheme of the application is that the inserting rod is additionally arranged, and the inserting rod is continuously inserted into the pin hole along with the screwing of the adjusting cylinder until the positioning plate is abutted against the end part of the pin hole, so that the piston rod can be positioned along the axial direction of the pin hole, and the clamped stability of the piston rod can be further improved. In some implementations, the abutment screw is screwed at the axis of the clamping body. In some implementations, the adjustment cylinder is disposed perpendicular to the abutment screw. In some implementations, the adjustment cylinders are symmetrically arranged on both sides of the clamping body. In some implementations, the outer end of the adjustment cylinder is provided with a knob. In some implementations, a limit slot is provided inside the adjustment cylinder. In some implementations, the limit slot is parallel to the axis of the adjustment cylinder. In some implementations, the outer wall of the insertion rod is provided with a stop bar that engages the stop slot. In some implementations, the positioning plate is configured as a disk. In some implementations, the locating plate is arranged coaxially with the plug rod. Drawings Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, and it should be understood that the embodiments described below are only for explaining the present application, not limiting the scope of the present application, and wherein: FIG. 1 is a schematic view of a post-cladding piston rod grinding tool according to an embodiment of the present application; Reference numerals: 10. the clamping body, 11, cylinder, 12, accommodation space; 20. The device comprises a connecting piece, a 21 adjusting cylinder, a 22 plug rod, a 23 positioning plate, a 24 knob, a 25 limiting groove, a 26 limiting strip; 30. abutting the screw. Detailed Description For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for the purpose of illustration only and are not intended to limit the present application. In the related art, when the piston rod is processed after cladding, one processing mode is to firstly process the flat part of the piston rod and then process the magnetic ring hole, but when processing the magnetic ring hole, the existing three-jaw chuck can only clamp two points on the circumference of the flat part, and the clamping stability can not be ensured. The patent with publication number CN222404528U discloses a processing frock for pushing jack piston rod, and this processing frock sets up between chuck and piston rod, can improve the stability of centre gripping. However, since this patent does not have a positioning mechanism in the axial direction of the pin hole of the flat portion, the stability of the piston rod still needs to be improved. In view of this, an object of the present embodiment is to provide a post-cladding