Grinding machine with sleeve easy to replace

Abstract

The utility model provides a polisher with a sleeve easy to replace, which comprises a fixed seat, a driving component, a polishing component and a fixed component, the upper side of the right end of the fixed seat is rotatably provided with the polishing component for polishing a PVC (polyvinyl chloride) pipe, and the right rear side of the fixed seat is provided with the driving component. Compared with the prior art, the PVC pipe polishing device has the following beneficial effects that by arranging the positioning arc plate, the polishing barrel can be installed and positioned and can be limited, so that the polishing barrel is more stable when a PVC pipe is rotationally polished, the first abutting block and the second abutting block are arranged and matched with the first electric cylinder and the second electric cylinder, and the polishing effect is better. And the first abutting block and the second abutting block are separated from the outer wall of the grinding cylinder, at the moment, only clamping connection of a positioning strip and a positioning groove of the grinding cylinder is left for fixing, the grinding cylinder can be taken down only by pushing the grinding cylinder from left to right, the disassembling difficulty of the grinding cylinder is greatly reduced, and a user can replace the grinding cylinder conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinders, and particularly relates to a grinder with an easily replaceable sleeve. Background Art

[0002] PVC pipe grinding machine is a kind of electric tool specially used for grinding and finishing the surface of PVC (polyvinyl chloride) pipes. This kind of machine usually uses electric motor or compressed air as the power source to drive the grinding parts such as grinding wheel, grinding belt or grinding disc to rotate or vibrate, so as to remove the excess material, defects or uneven parts on the surface of PVC pipe, so as to make the surface smooth or meet specific processing requirements.

[0003] The design of some PVC pipe grinders does not fully consider the ease of maintenance. The connection between the grinding cylinder and the machine body is too complicated or the fasteners are inconvenient to operate, which will directly increase the difficulty of disassembly and is not conducive to the later replacement of the grinding cylinder. Therefore, we hope to design a grinder with a new structure to solve this problem. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model aims to provide a grinder with an easily replaceable sleeve, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical scheme: a grinder with easily replaceable sleeves, comprising: a fixed seat, a driving assembly, a grinding assembly and a fixed assembly, wherein a grinding assembly for grinding PVC pipes is rotatably mounted on the upper right end of the fixed seat, a driving assembly is mounted on the right rear side of the fixed seat, and a fixing assembly for fixing and conveying PVC pipes is mounted on the left side of the fixed seat;

[0006] The fixing seat includes a base and a mounting frame, the mounting frame is installed on the right side of the upper end of the base, and the grinding assembly includes a rotating cylinder, a positioning arc plate and a grinding cylinder;

[0007] A positioning arc plate is fixed on the lower rear side of the rotating cylinder, and a grinding cylinder is inserted into the rotating cylinder through the positioning arc plate;

[0008] The fixing assembly comprises a lead screw module and a clamp, and two clamps are slidably mounted on the upper side of the lead screw module.

[0009] As a preferred embodiment, the rotating cylinder is rotatably mounted on the upper side of the mounting frame via a large bearing and a bearing seat, and the right end of the rotating cylinder is connected to the driving pulley at the right end of the driving assembly via a transmission belt.

[0010] As a preferred embodiment, the upper left side of the rotating cylinder is equipped with electric cylinder 2, the left front side of the rotating cylinder is equipped with electric cylinder 1, the rear side of the electric cylinder 1 is equipped with abutment block 1, and the lower end of the electric cylinder 2 is equipped with abutment block 2;

[0011] The specifications of the electric cylinder 1 and the electric cylinder 2 are the same, and the specifications of the abutment block 1 and the abutment block 2 are the same. In actual use, the abutment block 1 abuts against the front side of the grinding cylinder, and the abutment block 2 abuts against the upper side of the grinding cylinder, which can quickly fix or contact-lock the grinding cylinder machine.

[0012] As a preferred embodiment, the upper left side of the rotating cylinder penetrates downward to form a movable through groove 1, and the left front side of the rotating cylinder penetrates backward to form a movable through groove 2, the cross-sectional size and structure of the movable through groove 1 match the cross-sectional size and structure of the abutment block 1, and the cross-sectional size and structure of the movable through groove 2 match the cross-sectional size and structure of the abutment block 2;

[0013] One end of the abutment block 1 close to the grinding cylinder and one end of the abutment block 2 close to the grinding cylinder are both provided with arc surfaces, and the curvature of the arc surfaces is the same as the curvature of the surface of the grinding cylinder.

[0014] As a preferred embodiment, a positioning groove is radially opened outward on the front lower side and the rear upper side of the positioning arc plate, and a positioning strip is radially arranged outward on the front lower side and the rear upper side of the rotating cylinder, and the number, distribution position, size and structure of the positioning strips match the number, distribution position, size and structure of the positioning grooves;

[0015] The abutment block 1 and the abutment block 2 are not in direct contact with the positioning arc plate. The arrangement of the positioning groove and the positioning strip can install and position the grinding cylinder and limit the grinding cylinder, making it more stable when rotating and grinding the PVC pipe.

[0016] As a preferred embodiment, the clamp includes a connecting frame, a cylinder and a chuck, wherein a cylinder is respectively installed on the front and rear sides of the connecting frame, and a chuck is movably installed inside the front and rear sides of the connecting frame via a cylinder.

[0017] After adopting the above technical solution, the beneficial effects of the utility model are: by setting the positioning arc plate, the grinding cylinder can be installed and positioned, and the grinding cylinder can be limited, so that it is more stable when rotating and grinding the PVC pipe;

[0018] The setting of abutment block one and abutment block two, in cooperation with electric cylinder one and electric cylinder two, pulls abutment block one and abutment block two that abut against the grinding cylinder radially outward, so that abutment block one and abutment block two are respectively out of contact with the outer wall of the grinding cylinder. At this time, the grinding cylinder is only fixed by the clamping connection between the positioning strip and the positioning groove. The grinding cylinder can be removed by simply pushing it from left to right, which greatly reduces the difficulty of disassembling the grinding cylinder and facilitates its replacement by the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a grinder with an easily replaceable sleeve.

[0021] Figure 2 This is a schematic diagram of a front view of a grinder with an easily replaceable sleeve according to the utility model.

[0022] Figure 3 The utility model is a schematic diagram of a fixture structure of a grinder with an easily replaceable sleeve.

[0023] Figure 4 It is a schematic diagram of the grinding component structure of a grinding machine with an easily replaceable sleeve according to the utility model.

[0024] Figure 5 for Figure 4 A is an enlarged schematic diagram.

[0025] In the figure, 100 is a fixing seat, 110 is a mounting frame, and 120 is a base;

[0026] 200-driving assembly;

[0027] 300-grinding assembly, 310-electric cylinder 1, 311-abutment block 1, 320-electric cylinder 2, 321-abutment block 2, 330-rotating cylinder, 340-positioning arc plate, 341-positioning groove, 350-grinding cylinder, 351-positioning strip;

[0028] 400-fixing assembly, 410-screw module, 420-clamp, 421-connecting frame, 422-cylinder, 423-chuck. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 5 The utility model provides a technical solution: a grinder with an easily replaceable sleeve, comprising: a fixed seat 100, a driving assembly 200, a grinding assembly 300 and a fixed assembly 400, the grinding assembly 300 for grinding the PVC pipe is rotatably installed on the upper right end of the fixed seat 100, the driving assembly 200 is installed on the right rear side of the fixed seat 100, and the fixed assembly 400 for fixing and conveying the PVC pipe is installed on the left side of the fixed seat 100;

[0031] The fixing seat 100 includes a base 120 and a mounting frame 110. The mounting frame 110 is mounted on the right side of the upper end of the base 120. The grinding assembly 300 includes a rotating cylinder 330, a positioning arc plate 340 and a grinding cylinder 350.

[0032] A positioning arc plate 340 is fixed to the lower rear side of the rotating cylinder 330, and a grinding cylinder 350 is inserted into the rotating cylinder 330 through the positioning arc plate 340;

[0033] The fixing assembly 400 includes a lead screw module 410 and a clamp 420 , and two clamps 420 are slidably mounted on the upper side of the lead screw module 410 (the lead screw module 410 mentioned above adopts an existing product on the market, which can be selected according to actual use requirements).

[0034] See also Figure 4 , Figure 5 The rotating cylinder 330 is rotatably mounted on the upper side of the mounting frame 110 through a large bearing and a bearing seat, and the right end of the rotating cylinder 330 is connected to the driving pulley at the right end of the driving assembly 200 through a transmission belt.

[0035] The second electric cylinder 320 is installed on the upper left side of the rotating cylinder 330, the first electric cylinder 310 is installed on the left front side of the rotating cylinder 330, the first abutment block 311 is installed on the rear side of the first electric cylinder 310, and the second abutment block 321 is installed on the lower end of the second electric cylinder 320;

[0036] The specifications of electric cylinder 1 310 and electric cylinder 2 320 are the same, and the specifications of abutment block 1 311 and abutment block 2 321 are the same. In actual use, abutment block 1 311 abuts against the front side of the grinding cylinder 350, and abutment block 2 321 abuts against the upper side of the grinding cylinder 350, which can quickly fix or contact-lock the grinding cylinder 350.

[0037] The upper left side of the rotating cylinder 330 penetrates downward to form a movable through slot 1, and the left front side of the rotating cylinder 330 penetrates backward to form a movable through slot 2. The cross-sectional dimensions and structure of the movable through slot 1 match those of the abutment block 1 311, and the cross-sectional dimensions and structure of the movable through slot 2 match those of the abutment block 2 321.

[0038] One end of the abutment block 1 311 close to the grinding cylinder 350 and one end of the abutment block 2 321 close to the grinding cylinder 350 are both provided with arc surfaces, and the curvature of the arc surfaces is the same as the curvature of the surface of the grinding cylinder 350 .

[0039] As the first embodiment of the utility model, the arrangement of the abutment block 1 311 and the abutment block 2 321 cooperates with the electric cylinder 1 310 and the electric cylinder 2 320. In actual use, when it is necessary to replace and disassemble the grinding cylinder 350, the electric cylinder 1 310 and the electric cylinder 2 320 are started, and the abutment block 1 311 and the abutment block 2 321 abutting against the grinding cylinder 350 are radially pulled outward, so that the abutment block 1 311 and the abutment block 2 321 are respectively disengaged from the outer wall of the grinding cylinder 350. At this time, the grinding cylinder 350 is only fixed by the clamping connection between the positioning strip 351 and the positioning groove 341. The grinding cylinder 350 can be removed by only pushing it from left to right, which greatly reduces the difficulty of disassembling the grinding cylinder 350 and facilitates the user to replace it.

[0040] See also Figures 1 to 5 A positioning groove 341 is radially provided on the front lower side and the rear upper side of the positioning arc plate 340, and a positioning strip 351 is radially provided on the front lower side and the rear upper side of the rotating cylinder 330. The number, distribution position, size and structure of the positioning strips 351 match the number, distribution position, size and structure of the positioning grooves 341.

[0041] The abutment block 1 311 and the abutment block 2 321 are not in direct contact with the positioning arc plate 340. The setting of the positioning groove 341 and the positioning strip 351 can install and position the grinding cylinder 350 and limit the grinding cylinder 350 to make it more stable when rotating and grinding the PVC pipe.

[0042] The fixture 420 includes a connecting frame 421 , a cylinder 422 and a chuck 423 . A cylinder 422 is installed on the front and rear sides of the connecting frame 421 , respectively. A chuck 423 is movably installed inside the front and rear sides of the connecting frame 421 through a cylinder 422 .

[0043] As a second embodiment of the present utility model, based on the above-mentioned first embodiment, in actual use, when the grinding cylinder 350 needs to be installed inside the rotating cylinder 330, the positioning strips 351 on the front lower side and the rear upper side of the grinding cylinder 350 are first aligned with the positioning grooves 341 on the front lower side and the rear upper side of the positioning arc plate 340, and then the grinding cylinder 350 is inserted from right to left, that is, the two positioning strips 351 are inserted into the two positioning grooves 341 simultaneously. After the positioning strips 351 are in place, the grinding cylinder 350 is installed (in actual use, the left side of the positioning groove 341 does not penetrate the positioning arc plate 340, which makes the positioning strips 351 When it moves to the left to the end of the positioning groove 341, it will not slide out of the positioning groove 341. At the same time, the inner diameter of the grinding cylinder 350 can be replaced according to the outer diameter of the PVC pipe to be polished, and it can be suitable for grinding PVC pipes of various specifications). Then, the electric cylinder 1 310 and the electric cylinder 2 320 are started to fix the abutment block 1 311 and the abutment block 2 321 to fix the grinding cylinder 350 inside the rotating cylinder 330, so that the grinding cylinder 350 can be installed and positioned, and the grinding cylinder 350 can be limited to make it more stable when rotating and grinding the PVC pipe (the models of the above-mentioned electric cylinder 1 310 and the electric cylinder 2 320 can be selected according to actual usage requirements).

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding machine with an easily replaceable sleeve, comprising: A fixing seat (100), a driving assembly (200), a grinding assembly (300) and a fixing assembly (400), characterized in that a grinding assembly (300) for grinding a PVC pipe is rotatably mounted on the upper right end of the fixing seat (100), a driving assembly (200) is mounted on the right rear side of the fixing seat (100), and a fixing assembly (400) for fixing and transporting a PVC pipe is mounted on the left side of the fixing seat (100); The fixing seat (100) comprises a base (120) and a mounting frame (110), the mounting frame (110) being mounted on the right side of the upper end of the base (120), and the grinding assembly (300) comprises a rotating cylinder (330), a positioning arc plate (340) and a grinding cylinder (350); A positioning arc plate (340) is fixed on the lower rear side of the rotating cylinder (330), and a grinding cylinder (350) is inserted into the rotating cylinder (330) through the positioning arc plate (340); The fixing assembly (400) comprises a lead screw module (410) and a clamp (420), and two clamps (420) are slidably mounted on the upper side of the lead screw module (410).

2. A grinding machine with easily replaceable sleeve as claimed in claim 1, characterized in that: The rotating cylinder (330) is rotatably mounted on the upper side of the mounting frame (110) via a large bearing and a bearing seat, and the right end of the rotating cylinder (330) is connected to the driving pulley at the right end of the driving assembly (200) via a transmission belt.

3. A grinding machine with easily replaceable sleeve as claimed in claim 2, characterized in that: The upper left side of the rotating cylinder (330) is equipped with an electric cylinder 2 (320), the left front side of the rotating cylinder (330) is equipped with an electric cylinder 1 (310), the rear side of the electric cylinder 1 (310) is equipped with an abutment block 1 (311), and the lower end of the electric cylinder 2 (320) is equipped with an abutment block 2 (321); The specifications of the electric cylinder 1 (310) and the electric cylinder 2 (320) are the same, and the specifications of the abutment block 1 (311) and the abutment block 2 (321) are the same.

4. A grinding machine with easily replaceable sleeve as claimed in claim 3, characterized in that: The upper left side of the rotating cylinder (330) penetrates downward to form a movable through groove 1, and the left front side of the rotating cylinder (330) penetrates backward to form a movable through groove 2, the cross-sectional dimensions and structure of the movable through groove 1 match the cross-sectional dimensions and structure of the abutment block 1 (311), and the cross-sectional dimensions and structure of the movable through groove 2 match the cross-sectional dimensions and structure of the abutment block 2 (321); One end of the abutment block 1 (311) close to the grinding cylinder (350) and one end of the abutment block 2 (321) close to the grinding cylinder (350) are both provided with a curved surface, and the curvature of the curved surface is the same as the curvature of the surface of the grinding cylinder (350).

5. A grinding machine with easily replaceable sleeve as claimed in claim 4, characterized in that: A positioning groove (341) is radially provided outwardly on the front lower side and the rear upper side of the positioning arc plate (340), and a positioning strip (351) is radially provided outwardly on the front lower side and the rear upper side of the rotating cylinder (330), and the number, distribution position, size and structure of the positioning strips (351) match the number, distribution position, size and structure of the positioning grooves (341); The abutment block 1 (311) and the abutment block 2 (321) are not in direct contact with the positioning arc plate (340).

6. A grinding machine with easily replaceable sleeve as claimed in claim 1, characterized in that: The clamp (420) comprises a connecting frame (421), a cylinder (422) and a chuck (423); a cylinder (422) is installed on the front side and the rear side of the connecting frame (421), respectively; and a chuck (423) is movably installed inside the front side and the rear side of the connecting frame (421) via a cylinder (422).

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