Device for polishing inner surface of U-shaped cylinder

Abstract

The utility model belongs to the technical field of machining, and discloses a device for polishing the inner surface of a U-shaped barrel, which comprises a bottom plate (1), a compression bolt (2), a support bolt (3), a vertical plate (4), a fastening bolt (5), a fastening nut (6) and a polishing body (8). A plurality of through grooves are formed in the periphery of the bottom plate (1), and the compression bolts (2) penetrate through the through grooves to fix the bottom plate (1) on a small slide carriage (9) of a lathe; the supporting bolt (3) is arranged in a threaded hole in the top of the bottom plate (1); a U-shaped barrel to be polished is laterally placed on the top of the bottom plate (1), and the tops of the supporting bolts (3) make contact with the side face of the U-shaped barrel to be polished. Manual operation is replaced by a machine, potential safety hazards are eliminated, working efficiency is improved, and surface quality of parts and consistency of products are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, and in particular relates to a device for polishing the inner surface of a "U" shaped cylinder. Background Technology

[0002] In the mechanical structure of a certain product, a U-shaped cylindrical part requires polishing of its inner surface before surface treatment, such as... Figure 2 As shown, polishing requires that the entire inner surface of the part be completely new, and the polishing lines must be consistent in direction. Only in this way can the surface quality meet the requirements of the drawing after surface treatment. Currently, parts are polished by operators using a straight grinder equipped with a cloth abrasive wheel. After polishing, the surface quality of the parts is inconsistent, and the polishing lines are messy. This results in the surface quality of the parts not meeting the requirements after surface treatment, often requiring rework and repair. Moreover, there are safety hazards during polishing. Utility Model Content

[0003] The technical problem this invention aims to solve is that manual polishing poses safety hazards and results in inconsistent surface quality of parts.

[0004] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0005] An apparatus for polishing the inner surface of a U-shaped cylinder includes a base plate 1, a clamping bolt 2, a support bolt 3, a vertical plate 4, a fastening bolt 5, a fastening nut 6, and a polishing body 8.

[0006] The base plate 1 has multiple through slots around its perimeter. The clamping bolts 2 pass through the through slots to fix the base plate 1 to the small slide 9 of the lathe. The support bolts 3 are set in the threaded holes at the top of the base plate 1. The "U" shaped cylinder to be polished is placed sideways on the top of the base plate 1, and the top of the support bolts 3 contacts the side of the "U" shaped cylinder to be polished. The upright plate 4 is vertically fixed above the base plate 1 and has bolt holes. The fastening bolts 5 pass through the bolt holes and the through holes of the lugs of the "U" shaped cylinder to be polished and are connected to the fastening nuts 6.

[0007] The shank of the polishing body 8 is connected to the three-jaw chuck 13 of the lathe spindle, and its main body is in contact with the inner surface of the "U" shaped cylinder.

[0008] Furthermore, the lathe's small slide 9 can move laterally and longitudinally.

[0009] The present invention has the following advantages: The polishing device of the present invention has a simple and reasonable structure, is convenient and quick to use, and uses the spindle rotation of the lathe, the longitudinal movement of the small slide, and the lateral movement of the slide box to polish the parts. It realizes the replacement of manual operation by machine, eliminates safety hazards, improves work efficiency, and ensures the surface quality of the parts and the consistency of the products. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the device of this utility model combined with a lathe for polishing parts.

[0011] Figure 2 This is a structural diagram of a U-shaped part.

[0012] Figure 3 This is a schematic diagram of the structure of this utility model.

[0013] Figure 4 This is a schematic diagram showing the combination of the U-shaped part and the device of this utility model.

[0014] Among them, 1-base plate; 2-clamping bolt; 3-support bolt; 4-vertical plate; 5-fixing bolt; 6-fixing nut; 7-part; 8-polished body; 9-lathe small slide; 10-lathe slide box; 11-small handwheel; 12-large handwheel; 13-lathe spindle three-jaw chuck. Detailed Implementation

[0015] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, the purpose of this utility model is to design a device for polishing the inner surface of a "U"-shaped cylinder. This device is mounted on a small slide above the lathe's apron (with the tool post removed from the small slide). The lateral movement of the apron and the longitudinal movement of the small slide drive the device and the parts to move laterally and longitudinally. The polishing body is mounted on the lathe spindle's three-jaw chuck and rotates to achieve motorized polishing. This solves the problems of low efficiency, safety hazards, inconsistent surface quality, and messy polishing patterns associated with manual polishing, which often result in substandard surface quality and require rework after surface treatment.

[0017] This utility model is achieved through the following technical solution:

[0018] An apparatus for polishing the inner surface of a U-shaped cylinder includes: a base plate 1, a clamping bolt 2, a support bolt 3, a vertical plate 4, a fastening bolt 5, and a fastening nut 6.

[0019] The base plate 1 has four grooves machined on its surface for fixing the utility model to the lathe slide using clamping bolts 2. The clamping bolts 2 pass through the grooves on the base plate and are screwed into the threaded holes on the lathe slide 9 to fix the utility model to the lathe slide 9. Support bolts 3 support the part 7, fitting tightly to prevent vibration during polishing. An upright plate 4 is welded to the base plate 1 to mount the part 7 onto the utility model. Fastening bolts 5 and fastening nuts 6 are used to mount the part 7 onto the upright plate 4 of the utility model and to fasten both. The part 7 to be polished is mounted on the utility model. The polishing body... The shank is mounted on the three-jaw chuck 13 of the lathe spindle, which drives the polishing body to rotate. The part mounting device is fixed on the small slide 9. Rotating the small handwheel 11 causes the small slide to drive the device and part used for polishing the inner surface of the "U"-shaped cylinder to move longitudinally. When the large handwheel 12 is rotated, the lathe apron 10 drives the small slide, the device and part used for polishing the inner surface of the "U"-shaped cylinder to move laterally. Rotating the small handwheel 11 can drive the lathe small slide to move longitudinally. Rotating the large handwheel 12 can drive the lathe apron 10 to move laterally. The lathe three-jaw chuck 13 is used to clamp the shank of the polishing body and drive the polishing body to rotate. During operation, part 7 is fixed to the vertical plate 4 of this utility model using fastening bolts 5 and fastening nuts 6. The support bolts 3 are adjusted to ensure that they fit tightly against the part, preventing vibration of the part from affecting the polishing effect. Then, the utility model containing the part is fixed to the lathe slide 9 using clamping bolts 2. The polishing body 8 is mounted on the lathe spindle three-jaw chuck 13. The small handwheel 11 is rotated to adjust the relative position of the part and the polishing body by moving the slide longitudinally (so that the axis of the polishing body and the center of the arc surface of the part are on the same axis). The lathe is started, and the polishing body rotates at high speed with the spindle. At the same time, the large handwheel 12 on the slide box 10 is rotated to drive the slide box, the small slide on the slide box, and the part to move laterally, thus completing the polishing function of this utility model.

[0020] Its working process is as follows:

[0021] During polishing, first, fix part 7 to this utility model using fastening bolts 5 and fastening nuts 6, and then fix this utility model to the small slide of the lathe using clamping bolts 2; adjust the support bolts 3 to ensure they fit tightly against the part, preventing vibration of the part from affecting the polishing effect; rotate the small handwheel to adjust the relative position of the part and the polishing body by moving the small slide longitudinally (so that the axis of the polishing body is on the same axis as the center of the arc surface of the part); start the lathe, and the polishing body rotates at high speed with the spindle, while simultaneously rotating the large handwheel 12 on the slide box 10, driving the slide box, the small slide on the slide box, and the part to move laterally, thus completing the polishing function of this utility model. The above operations are for polishing the arc surface of the part. When polishing the flat surface, adjust the polishing body to the flat surface position of the part by rotating the small handwheel 11, and then perform the above operations.

[0022] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and improvements without departing from the principles of the present invention, and these modifications and improvements should also be considered to fall within the protection scope of the present invention.

Claims

1. An apparatus for polishing the inner surface of a U-shaped cylinder, characterized in that, Includes base plate (1), clamping bolts (2), support bolts (3), upright plate (4), fastening bolts (5), fastening nuts (6), and polishing body (8); The base plate (1) has multiple through slots around its perimeter. The clamping bolt (2) passes through the through slots to fix the base plate (1) onto the small slide (9) of the lathe. The support bolt (3) is set in the threaded hole at the top of the base plate (1). The "U" shaped cylinder to be polished is placed on the top of the base plate (1), and the top of the support bolt (3) contacts the side of the "U" shaped cylinder to be polished. The upright plate (4) is vertically fixed above the base plate (1), and bolt holes are provided on it. The fastening bolt (5) passes through the bolt holes and the through holes of the "U" shaped cylinder support lugs to be polished and is connected to the fastening nut (6). The shank of the polishing body (8) is connected to the three-jaw chuck of the lathe spindle, and its main body is in contact with the inner surface of the "U" shaped cylinder.

2. The apparatus for polishing the inner surface of a "U"-shaped cylinder according to claim 1, characterized in that, The small slide of the lathe can move laterally and longitudinally.

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