Polishing and grinding equipment for inner wall of furnace tube

Abstract

The utility model belongs to the technical field of furnace tube machining equipment, and particularly relates to furnace tube inner wall polishing and grinding equipment. Comprising a rack; the two linear guide rails are arranged on the rack in a front-back mode, and a bench vice is installed on the linear guide rails in a sliding mode; the reciprocating air cylinder is installed on the rack, and the driving end of the reciprocating air cylinder drives the bench vice to reciprocate left and right; an air supply port of the pneumatic polishing machine is communicated with a hard air supply pipe, the hard air supply pipe is clamped and fixed through the bench vice, and meanwhile, the other end of the hard air supply pipe is communicated with external compressed air through a hose. The problems that time and labor are wasted, and the grinding position, roundness and flatness are difficult to guarantee are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of furnace tube processing equipment, and specifically relates to a furnace tube inner wall polishing and grinding equipment. Background Technology

[0002] During the machining of the furnace tube inner wall, due to tool wear and chipping, the surface finish may not meet the customer's drawing requirements. This necessitates polishing and grinding the sections of the inner wall that do not meet the finish requirements to achieve the desired smoothness. In the butt welding process of the furnace tube sections, the weld formation technically requires single-sided welding with double-sided forming. That is, welding must be performed on the surface of the tube section, and the inner wall must also be welded simultaneously. Achieving this technical requirement demands a high level of skill from the welder. Unevenness in the weld seam on the inner wall is unavoidable, necessitating grinding and repair of these uneven weld seams.

[0003] Polishing and grinding the inner wall of furnace tubes with a diameter of 50mm to 200mm and a depth of several meters usually requires manual hand-held electric or pneumatic polishing machines, which is time-consuming and labor-intensive, and it is difficult to guarantee the position, roundness and flatness of the polishing. Utility Model Content

[0004] The purpose of this invention is to provide a furnace tube inner wall polishing and grinding equipment to solve the problems of time-consuming and labor-intensive processes, and the difficulty in guaranteeing the grinding position, roundness, and flatness.

[0005] To solve the above-mentioned technical problems, this utility model provides a furnace tube inner wall polishing and grinding device, comprising:

[0006] frame;

[0007] Linear guide rails, two of which are arranged one in front of the other on the frame, and a bench vise is slidably mounted on the linear guide rails;

[0008] A reciprocating cylinder is mounted on the frame, and the drive end of the reciprocating cylinder drives the bench vise to reciprocate left and right.

[0009] A pneumatic polishing machine, wherein a rigid air supply pipe is connected to the air supply port of the pneumatic polishing machine, the rigid air supply pipe is clamped and fixed by the bench vise, and the other end of the rigid air supply pipe is connected to external compressed air through a flexible hose.

[0010] Preferably, the frame includes: a support frame, a mounting base, and a fixing base; the mounting base is provided at the top left and right ends of the support frame, and the fixing base is provided at the top front and rear ends of the mounting base, through which the linear guide rail is fixedly installed.

[0011] Preferably, the bench vise includes: a mounting base plate, a fixing block, a fixing clamp, a moving clamp, and a rotating screw; the fixing clamp is provided on the rear side of the top of the mounting base plate, the fixing block is provided on the front side, the moving clamp is provided between the fixing block and the fixing clamp, and the moving clamp is rotatably connected to the rotating screw through a bearing, and the other end of the rotating screw is threaded through the fixing block.

[0012] Preferably, it also includes an auxiliary mechanism, which includes a drive clamping mechanism and a support rotating bracket; the drive clamping mechanism drives the furnace tube workpiece placed on the support rotating bracket to rotate.

[0013] Preferably, the drive clamping mechanism includes: a mounting frame, a drive motor, a universal joint shaft, and a four-jaw chuck; the drive motor is mounted on the mounting frame, and the output end of the drive motor is drivenly connected to the four-jaw chuck through the universal joint shaft, and the jaws of the four-jaw chuck clamp and fix one end of the furnace tube workpiece.

[0014] Preferably, the rotating support bracket includes a support frame and support rollers; the support rollers are evenly distributed on the front and rear sides of the top of the support frame, and the support rollers are evenly distributed in the left and right direction so that a plurality of support rollers support the furnace tube workpiece.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention uses external compressed air to drive a reciprocating cylinder. The reciprocating cylinder clamps a rigid air supply pipe through a bench vise, driving a pneumatic polisher to reciprocate left and right within the inner hole of the furnace tube workpiece. Simultaneously, the pneumatic polisher rotates under the drive of compressed air, and under the left and right movement of the reciprocating cylinder, it performs a reciprocating linear motion while rotating, thus achieving the back-and-forth polishing and grinding action on the inner wall of the furnace tube. This achieves the advantages of automatic grinding, saving time and effort, and producing high-quality grinding, thereby improving grinding efficiency. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a furnace tube inner wall polishing and grinding device according to this utility model.

[0018] Figure 2 This is a structural diagram of a furnace tube inner wall polishing and grinding equipment and its auxiliary mechanism according to this utility model.

[0019] Figure 3 This is a structural diagram of the bench vise of this utility model.

[0020] Figure 4 This is a structural diagram of the mounting base of this utility model.

[0021] Figure 5This is a structural diagram of the fixing base of this utility model.

[0022] In the diagram: 1-Frame, 11-Support frame, 12-Mounting base, 13-Fixed base, 2-Linear guide rail, 3-Reciprocating cylinder, 4-Bench vise, 41-Mounting base plate, 42-Fixing block, 43-Fixing clamp, 44-Moving clamp, 45-Rotating screw, 5-Pneumatic polishing machine, 6-Hard air supply pipe, 7-Hose, 8-Drive clamping mechanism, 81-Mounting bracket, 82-Drive motor, 83-Universal coupling shaft, 84-Four-jaw chuck, 9-Support roller, 10-Furnace tube workpiece. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0024] like Figures 1 to 5 As shown, this utility model embodiment provides a furnace tube inner wall polishing and grinding device, including:

[0025] Rack 1;

[0026] Linear guide rail 2, two linear guide rails 2 are arranged one after the other on the frame 1, and a bench vise 4 is slidably installed on the linear guide rail 2;

[0027] Reciprocating cylinder 3 is mounted on frame 1, and the drive end of reciprocating cylinder 3 drives table vise 4 to reciprocate left and right.

[0028] The pneumatic polishing machine 5 has a rigid air supply pipe 6 connected to its air supply port. The rigid air supply pipe 6 is clamped and fixed by a bench vise 4, and the other end of the rigid air supply pipe 6 is connected to external compressed air via a flexible hose 7. The external compressed air drives the reciprocating cylinder 3 to work. The reciprocating cylinder 3 clamps the rigid air supply pipe 6 through the bench vise 4, thereby driving the pneumatic polishing machine 5 to reciprocate left and right in the inner hole of the furnace tube workpiece 10. At the same time, the pneumatic polishing machine 5 rotates under the drive of compressed air, and under the left and right drive of the reciprocating cylinder 3, the pneumatic polishing machine 5 rotates and performs reciprocating linear motion to achieve the back-and-forth polishing and grinding action on the inner wall of the furnace tube.

[0029] The frame 1 includes a support frame 11, a mounting base 12, and a fixing base 13. The support frame 11 has mounting bases 12 at the top left and right ends, and the mounting base 12 has fixing bases 13 at the top front and rear ends. The linear guide rail 2 is fixedly installed by the fixing bases 13.

[0030] The bench vise 4 includes: a mounting base plate 41, a fixing block 42, a fixing clamp 43, a moving clamp 44, and a rotating screw 45. The fixing clamp 43 is located on the rear side of the top of the mounting base plate 41, and the fixing block 42 is located on the front side. The moving clamp 44 is slidably connected between the fixing block 42 and the fixing clamp 43, and the moving clamp 44 is rotatably connected to the rotating screw 45 through a bearing. The other end of the rotating screw 45 is threaded through the fixing block 42. When clamping the rigid air supply pipe 6, the rotating screw 45 can be rotated to drive the moving clamp 44 to move towards the fixing clamp 43 until the rigid air supply pipe 6 is clamped and fixed.

[0031] It also includes auxiliary mechanisms, including a drive clamping mechanism 8 and a support rotating bracket; the drive clamping mechanism 8 drives the furnace tube workpiece 10 placed on the support rotating bracket to rotate. The drive motor 82 drives the furnace tube workpiece 10 to rotate via the universal joint shaft 83. The direction of rotation of the furnace tube workpiece 10 is opposite to the direction of rotation of the polishing abrasive wheel or grinding wheel on the pneumatic grinder 5, so as to improve the polishing and grinding quality.

[0032] The drive clamping mechanism 8 includes: a mounting frame 81, a drive motor 82, a universal joint shaft 83, and a four-jaw chuck 84; the drive motor 82 is mounted on the mounting frame 81, and the output end of the drive motor 82 is connected to the four-jaw chuck 84 via the universal joint shaft 83. The jaws of the four-jaw chuck 84 clamp and fix one end of the furnace tube workpiece 10.

[0033] The support rotating bracket includes: a support frame and support rollers 9 ( Figure 2 (Only a simple schematic diagram of the support roller 9 is shown in the figure); the support frame is provided with rolling support rollers 9 on both the front and rear sides of the top, and the support rollers 9 are evenly distributed in the left and right direction so that several support rollers 9 support the furnace tube workpiece 10. Moreover, the shaft end of the support roller 9 here can also be provided with a structure of motor and belt drive to drive rotation, so as to improve the support and rotation of the furnace tube workpiece 10.

[0034] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A furnace tube inner wall polishing and grinding equipment, characterized in that, include: Rack (1); Linear guide rail (2), two linear guide rails (2) are arranged one in front of the other on the frame (1), and a bench vise (4) is slidably installed on the linear guide rail (2); A reciprocating cylinder (3) is mounted on the frame (1), and the driving end of the reciprocating cylinder (3) drives the bench vise (4) to reciprocate left and right. A pneumatic polishing machine (5) has a rigid air supply pipe (6) connected to its air supply port. The rigid air supply pipe (6) is clamped and fixed by the bench vise (4), and the other end of the rigid air supply pipe (6) is connected to external compressed air through a hose (7).

2. The furnace tube inner wall polishing and grinding equipment as described in claim 1, characterized in that, The frame (1) includes: a support frame (11), a mounting base (12) and a fixing base (13); the mounting base (12) is provided at the top left and right ends of the support frame (11), and the fixing base (13) is provided at the top front and rear ends of the mounting base (12), and the linear guide rail (2) is fixedly installed through the fixing base (13).

3. The furnace tube inner wall polishing and grinding equipment as described in claim 1, characterized in that, The bench vise (4) includes: a mounting base plate (41), a fixing block (42), a fixing clamp (43), a moving clamp (44), and a rotating screw (45); the fixing clamp (43) is provided on the rear side of the top of the mounting base plate (41), and the fixing block (42) is provided on the front side. The moving clamp (44) is provided between the fixing block (42) and the fixing clamp (43), and the moving clamp (44) is rotatably connected to the rotating screw (45) through a bearing. The other end of the rotating screw (45) is threaded through the fixing block (42).

4. The furnace tube inner wall polishing and grinding equipment as described in claim 1, characterized in that, It also includes an auxiliary mechanism, which includes a drive clamping mechanism (8) and a support rotating bracket; the drive clamping mechanism (8) drives the furnace tube workpiece (10) placed on the support rotating bracket to rotate.

5. The furnace tube inner wall polishing and grinding equipment as described in claim 4, characterized in that, The drive clamping mechanism (8) includes: a mounting frame (81), a drive motor (82), a universal joint shaft (83), and a four-jaw chuck (84); the drive motor (82) is mounted on the mounting frame (81), and the output end of the drive motor (82) is driven and connected to the four-jaw chuck (84) through the universal joint shaft (83). The jaws of the four-jaw chuck (84) clamp and fix one end of the furnace tube workpiece (10).

6. The furnace tube inner wall polishing and grinding equipment as described in claim 4, characterized in that, The rotating support bracket includes a support frame and support rollers (9); the support frame is provided with rolling support rollers (9) on both the front and rear sides of the top of the support frame, and the support rollers (9) are evenly distributed in the left and right direction so that a number of support rollers (9) support the furnace tube workpiece (10).

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