Polishing and grinding tool with tensioning abrasive belt for gas cylinder mounting seat airtight platform

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a polishing and grinding tool with a tensioning abrasive belt for an airtight platform of a gas cylinder mounting seat. At present, the position of a grinding rod is manually fixed during polishing, machining precision is not easy to guarantee, safety accidents are prone to occurring, and machining efficiency is low. The whole guide sleeve is of a concave structure, the bottom of the guide sleeve is provided with an inner hole matched with the outer circle of a boss of the grinding rod, and the inner wall of the guide sleeve is provided with high-precision internal threads screwed with a gas cylinder mounting seat; the rod part of the grinding rod is provided with a boss, the boss is symmetrically provided with a first chute and a second chute, and the rod part on the upper side of the boss is provided with a mounting groove for inserting the fixing frame; the two ends of the fixing frame are provided with a rolling wheel and an opening clamping pin respectively, and an abrasive belt of the rolling wheel penetrates through the second inclined groove downwards, wraps the lower end face of the grinding rod, penetrates through the first inclined groove upwards and is fixed to the opening clamping pin. The device has the characteristic of high safety, is convenient to operate, and solves the problem that the airtight surface of the gas cylinder mounting seat is difficult to machine and maintain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, especially relate to a take tight abrasive belt polishing and grinding tool for gas cylinder mounting seat airtight platform, guarantee higher form and position tolerance and excellent roughness of airtight surface after processing. BACKGROUND

[0002] The airtight surface roughness of gas cylinder mounting seat is required strictly, and the form and position tolerance between the airtight surface and the gas cylinder assembly thread is strict. When scratch appears on the airtight surface during assembly or conversion, the airtight surface needs to be polished on the lathe to ensure airtightness.

[0003] During polishing, the part rotates, and the grinding rod moves along the axial direction for polishing. In order to ensure airtightness, the form and position tolerance needs to be ensured during polishing. At present, the position of the grinding rod is fixed manually, and the method of fixing the abrasive belt by fingers is used. Firstly, the machining accuracy is not easy to ensure, secondly, the operation of holding the abrasive belt during machining is prone to safety accidents, and thirdly, the machining efficiency is low due to frequent replacement of the abrasive belt. UTILITY MODEL CONTENTS

[0004] The utility model discloses a take tight abrasive belt polishing and grinding tool for gas cylinder mounting seat airtight platform, guarantee higher form and position tolerance and excellent roughness of airtight surface after processing, and have the functions of quick replacement and tightening of the abrasive belt, improve the safety of operation, and the machining efficiency is higher.

[0005] The utility model provides a take tight abrasive belt polishing and grinding tool for gas cylinder mounting seat airtight platform, including guide bush, grinding rod and fixed frame, the whole of guide bush is concave structure, bottom has the inner hole with grinding rod boss outer circle cooperation, inner wall has the high accuracy internal thread with gas cylinder mounting seat screwing, grinding rod has the boss at the rod part, it has first inclined slot and second inclined slot on the boss symmetry, the rod part of boss upside has the installation slot of inserting fixed frame, fixed frame is installed with the roller and open pin at both ends respectively, the abrasive belt of roller passes through second inclined slot, the lower end surface of grinding rod is covered and then passes through first inclined slot and is fixed on open pin upwards.

[0006] Advantageously or optionally, the roller is fixed on the fixed frame by the third fixed screw, and is fastened by the second fixed screw in the vertical direction.

[0007] Advantageously or optionally, the open pin is installed on the other end of the fixed frame parallel to the third fixed screw, and is fastened by the first fixed screw in the vertical direction.

[0008] Advantageously or optionally, the grinding rod further has a threaded hole orthogonal to the installation slot at the rod part, and the fixed frame is fastened in the installation slot by the stud.

[0009] Advantageously or optionally, the inner hole and the internal thread of the guide sleeve are machined in one clamping.

[0010] Advantageously or optionally, the guide sleeve and the gas cylinder mounting seat are matched in thread with a grade of 6g / 5H.

[0011] Advantageously or optionally, the guide sleeve and the boss outer circle of the grinding rod are matched with a gap of not more than 0.01mm.

[0012] Advantageously or optionally, the perpendicularity between the airtight surface and the mounting thread of the gas cylinder mounting seat is not more than 0.02mm.

[0013] Beneficial effects: the tool involved in the utility model guarantees the shape tolerance of the airtight surface of the mounting seat after polishing through high-precision outer circle and inner hole matching, and has the characteristics of high precision. The tool has the characteristics of simple structure, low cost and easy operation; after the abrasive belt is worn, the position of the abrasive belt can be quickly adjusted, the production preparation time is saved, the production efficiency is greatly improved, and the tool has the characteristics of high efficiency.

[0014] The safety problem of manually fixing the abrasive belt is solved, and the tool has the characteristics of high safety. The tool has the characteristics of simple structure and easy operation. When the grinding rod is rotated by using a pneumatic tool, parts can be quickly repaired in the field without precise repair conditions, so the tool can be used for field repair, has the value of popularization and expansion, and solves the problems of gas cylinder mounting seat airtight surface machining and maintenance difficulties.

[0015] The features, functions and advantages discussed can be implemented independently in various examples, or can be combined in other examples. Other details of the examples can be seen with reference to the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The examples and preferred modes of use, other objects and its description will be best understood by reading the following detailed description of the examples of the utility model in conjunction with the attached drawings, when read in conjunction with the attached drawings, in which:

[0017] Figure 1 is an oblique view of the abrasive tool with a tensioned abrasive belt;

[0018] Figure 2 is a sectional view of the abrasive tool with a tensioned abrasive belt;

[0019] Figure 3 is a sectional view of the guide sleeve

[0020] Figure 4 is a front view of the grinding rod;

[0021] Figure 5 is a top view of the grinding rod.

[0022] 1-guide sleeve, 2-grinding rod, 3-fixing frame, 4-first fixing screw, 5-second fixing screw, 6-stud, 7-open pin, 8-third fixing screw, 9-threaded hole, 10-roller, 11-abrasive belt, 12-cylinder mounting seat, 13-airtight surface, 14-first inclined slot, 15-second inclined slot, 16-mounting slot DETAILED DESCRIPTION

[0023] The disclosed examples will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all, of the disclosed examples are shown. Indeed, a wide variety of examples can be described and many of the examples described herein can be modified in various ways and these modifications should be considered within the scope of the disclosure. Furthermore, the described examples are not intended to be exhaustive or to be limited to the examples described herein. Rather, the described examples are intended to be illustrative only and the scope of the disclosure is to be considered adequately described only by reference to the claims.

[0024] Reference will now be made to the drawings, in which Figure 1 and Figure 2 An abrasive belt tensioning abrasive tool for cylinder mounting seat airtight platform is exemplified, which includes a guide sleeve 1 precisely matched with the cylinder mounting thread, a grinding rod 2 that can be centered with the guide sleeve, and a fixing frame 3 that can fix and tension the abrasive belt.

[0025] The guide sleeve 1 is shown in Figure 3 , which is concave in overall structure, has an inner hole at the bottom matched with the outer circle of the boss of the grinding rod, and has a high-precision inner thread on the inner wall that is screwed with the mounting thread of the cylinder mounting seat 12. The inner hole and the inner thread need to be processed by one-time clamping to ensure the concentricity requirement. The shaft end of the cylinder mounting seat 12 has an airtight surface 13.

[0026] The guide sleeve 1 is screwed with the mounting thread of the cylinder mounting seat 12, and the thread matching level is 6g / 5H. The guide sleeve 1 is matched with the outer circle of the boss of the grinding rod 2, and the matching gap is not greater than 0.01mm. The perpendicularity between the airtight surface 13 of the cylinder mounting seat 12 and the mounting thread is not greater than 0.02mm. Therefore, in use, the parallelism of the grinding rod 2 and the airtight surface 13 is not greater than 0.05mm. Therefore, the shape and position tolerance requirements can be ensured during polishing.

[0027] The grinding rod 2 is shown in Figure 4 and Figure 5 , which has a boss at the rod part, the outer circle of which is matched with the inner hole of the guide sleeve 1, and the first inclined slot 14 and the second inclined slot 15 for the abrasive belt to pass through are symmetrically processed on the boss. The rod part on the upper side of the boss has a mounting slot 16 inserted into the fixing frame 3, and a threaded hole 9 orthogonal to the mounting slot 16, and the fixing frame 3 is fastened in the mounting slot of the grinding rod 2 through the stud 6.

[0028] The fixed frame 3 is provided with a roller 10 and an open pin 7 at both ends, the sand belt 11 is wound on the roller 10, the free end of the sand belt 11 passes through the second chute 15 downward, the lower end surface of the coated grinding rod 2, and then passes through the first chute 14 upward, and is fixed in the open pin 7, the open pin 7 is fastened by the first fixing screw 4, and the roller 10 is fastened by the second fixing screw 5, so as to realize the fastening and tensioning function of the sand belt 11. The roller 10 is fixed on the fixed frame 3 by the third fixing screw 8 at one end of the fixed frame 3, and the open pin 7 is installed at the other end of the fixed frame 3.

[0029] The sand belt 11 passes through the second chute 15 and the first chute 14, and simultaneously wraps the outer circle of the open pin 7, and preliminarily confirms the position. The first fixing screw 4 and the second fixing screw 5 on both sides are tightened to realize the tensioning and pressing of the sand belt. The sand belt 11 becomes an integral part of the grinding rod 2. In use, the product rotates with the lathe, the sand belt 11 moves axially with the grinding rod 2, and the polishing of the air-tight surface is realized.

[0030] The tool realizes high-precision outer circle and hole cooperation, ensures the shape and position tolerance of the air-tight surface of the mounting seat after polishing, and has the characteristics of high precision. The tool has the characteristics of simple structure, low cost and easy operation. After the sand belt is worn, the position of the sand belt can be quickly adjusted, the production preparation time is saved, the production efficiency is greatly improved, and the tool has the characteristics of high efficiency. The safety problem of manually fixing the sand belt is solved, and the tool has the characteristics of high safety. The tool has the characteristics of simple structure and easy operation. When the grinding rod is rotated by using a pneumatic tool, the parts can be quickly repaired in the field without precise repair conditions, so the tool has the characteristics of being used for field repair and has the value of popularization and expansion.

[0031] The description of the different advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Moreover, different advantageous examples can provide different advantages as compared to other advantageous examples. The chosen examples or examples are chosen in order to best illustrate the principles of the examples, practical application, and to enable one of ordinary skill in the art to understand the disclosure with various modifications being made to the examples that are suitable for the particular use.

Claims

1. A belt sander tool for a gas cylinder mounting seat airtight platform, characterized in that: It includes guide sleeve (1), grinding rod (2) and fixed frame (3), the guide sleeve (1) is concave structure as a whole, the bottom has the inner hole matched with the grinding rod boss outer circle, the inner wall has high-precision internal thread screwing with gas cylinder mounting seat (12); The grinding rod (2) has boss on the rod part, and the first inclined groove (14) and the second inclined groove (15) are symmetrically provided on the boss, the rod part on the upper side of the boss has the installation groove (16) inserted into the fixed frame (3);The fixed frame (3) is respectively provided with the roller (10) and the open pin (7) at both ends, the sand belt (11) of the roller (10) passes through the second inclined groove (15) downward, the lower end surface of the grinding rod (2) is coated, then passes through the first inclined groove (14) upward and is fixed on the open pin (7).

2. The abrasive belt tensioning and sanding tool of claim 1, wherein: The roller (10) is fixed on the fixed frame (3) by the third fixed screw (8), and is fastened by the second fixed screw (5) in the vertical direction.

3. The abrasive belt tensioning tool of claim 2, wherein: The open pin (7) is installed on the other end of the fixed frame (3) parallel to the third fixed screw (8), and is fastened by the first fixed screw (4) in the vertical direction.

4. The abrasive belt tensioning tool of claim 3, wherein: The grinding rod (2) further has a threaded hole (9) orthogonal to the installation groove (16) on the rod part, and the fixed frame (3) is fastened in the installation groove (16) by the stud (6).

5. The abrasive belt tensioning tool of claim 4, wherein: The inner hole and the internal thread of the guide sleeve (1) need to be processed once clamped.

6. The abrasive belt tensioning tool of any of claims 1-5, wherein: The thread matching level of the guide sleeve (1) and the gas cylinder mounting seat (12) is 6g / 5H.

7. The abrasive belt tensioning tool of any of claims 1-5, wherein: The boss outer circle matching gap of the guide sleeve (1) and the grinding rod (2) is not more than 0.01mm.

8. The abrasive belt tensioning tool of any of claims 1-5, wherein: The perpendicularity between the airtight surface (13) of the gas cylinder mounting seat (12) and the mounting thread is not more than 0.02mm.

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