Grinding machine capable of quickly replacing abrasive belt

Abstract

The utility model belongs to the technical field of dull polish machines, in particular to a dull polish machine capable of quickly replacing an abrasive belt, which comprises a handle, a driving component is fixedly arranged at one end of the handle, an auxiliary grip is fixedly arranged on the front side of the handle, and a driving wheel is arranged on the driving component. When the abrasive belt is replaced, an ejector rod is extruded inwards and extrudes a lock frame, after a lock catch of the lock frame is separated from a clamping block, an insertion rod is pulled outwards, one end of the insertion rod is separated from an insertion hole, then two adjusting blocks are pushed in the direction close to a driving wheel at the same time, and the adjusting blocks drive a driven wheel to move through rectangular blocks; the abrasive belt wheel body can be taken down and replaced by stopping pushing the adjusting block and pulling the abrasive belt wheel body outwards, the driven wheel can be taken down without disassembling a bolt, the abrasive belt can be taken down and replaced by adjusting the position of the driven wheel to loosen the abrasive belt, and the replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanding machines, in particular to a sanding machine capable of quickly replacing a sanding belt. Background Art

[0002] The sanding belt is one of the important parts of the pneumatic sander. The pneumatic sanding belt machine is mainly used for grinding narrow, complex, and difficult-to-access grinding parts. It is widely used in the grinding of bicycles, aluminum alloys, and zinc alloy die-castings. It has a large cutting ability, fast speed, and easy operation. It can perfectly solve the narrow and difficult-to-grind surfaces. It is easy to operate and suitable for grinding small corners and dead corners. The sanding belt needs to be replaced after a period of use to ensure the sanding quality.

[0003] However, in the existing equipment, the sander does not have an adjustment structure. When replacing the sanding belt, the screws on the driven wheel need to be removed. The sanding belt can only be removed and replaced after the driven wheel is removed. The purpose of quickly replacing the sanding belt cannot be achieved, thereby reducing the replacement efficiency. Therefore, a sanding machine with quick replacement of the sanding belt is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a sanding machine capable of quickly replacing the sanding belt.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sanding machine with which a sanding belt can be quickly replaced, comprising a handle, a driving assembly is fixedly provided at one end of the handle, an auxiliary grip is fixedly provided on the front side of the handle, a driving wheel is provided on the driving assembly, a connecting frame is fixedly provided on the front side of the driving assembly, a through groove is provided on the connecting frame, a driven wheel is movably provided in the through groove, the same sanding belt body is sleeved on the driven wheel and the driving wheel, and adjustment structures are movably provided on the front and back sides of the connecting frame.

[0006] As a further description of the above technical solution:

[0007] The front inner wall and the back inner wall of the through slot are both provided with card slots, the front and back sides of the connecting frame are both provided with slide slots, the slide slots and the card slots are communicated, the front and back sides of the connecting frame are both provided with two sliding slots, rotating shafts are fixedly provided on both sides of the driven wheel, and rectangular blocks are movably provided at the ends facing away from the two rotating shafts, and the rectangular blocks are movably connected to the card slots.

[0008] As a further description of the above technical solution:

[0009] A groove is provided on one side of the rectangular block close to the driven wheel, a bearing is fixedly provided in the groove, and an inner ring of the bearing is fixedly sleeved on the rotating shaft.

[0010] As a further description of the above technical solution:

[0011] The adjusting structure comprises two sliding blocks movably connected with the sliding grooves, one side of the two sliding blocks is fixedly provided with the same adjusting block, one end of the adjusting block is fixedly provided with a connecting rod, one end of the connecting rod is fixedly connected to one side of the rectangular block, a mounting box is fixedly provided on the top of the adjusting block, a hinged seat is fixedly provided on the inner wall of one side of the mounting box, a locking frame is movably provided in the hinged seat, an insertion rod is movably provided on the inner wall of one side of the mounting box, a card block is fixed on the insertion rod, a top rod is provided on the front inner wall of the mounting box, a spring is fixedly provided on the inner wall of one side of the mounting box, and one end of the spring is fitted with one side of the locking frame.

[0012] As a further description of the above technical solution:

[0013] The lock frame comprises a lock rod and a lock buckle. The lock buckle and the side close to the clamping block are both provided with an inclined surface. The inclined surface on one side of the clamping block is parallel to the inclined surface on one side of the lock buckle.

[0014] As a further description of the above technical solution:

[0015] The front and back sides of the connection frame are both provided with a plurality of insertion holes, and the insertion holes are matched with the insertion rods.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the sanding machine capable of quickly replacing the sanding belt is provided with a card slot, a sliding slot, a connecting rod, a hinge seat, a lock frame, a push rod, a spring and an insertion rod. When replacing the sanding belt, the push rod is squeezed inward, and the push rod squeezes the lock frame. When the lock buckle of the lock frame is out of contact with the card block, the insertion rod is pulled outward to make one end of the insertion rod disengage from the insertion hole, and then the two adjustment blocks are pushed in the direction close to the driving wheel at the same time. The adjustment block drives the driven wheel to move through the rectangular block. When the sanding belt body is loose, the pushing of the adjustment block is stopped, and then the sanding belt wheel body is pulled outward, and the sanding belt wheel body can be removed and replaced. There is no need to remove the bolts to remove the driven wheel. The sanding belt can be removed and replaced by adjusting the position of the driven wheel to loosen it, thereby improving the replacement efficiency.

[0018] 2. Compared with the prior art, the sanding machine capable of quickly replacing the sanding belt can make the adjustment block move more smoothly when adjusting the position of the driven wheel by setting the sliding groove and the sliding block, and the driven wheel will not be skewed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a sanding machine capable of quickly replacing a sanding belt proposed by the utility model;

[0020] Figure 2This is a three-dimensional structural schematic diagram of a connecting frame in a sanding machine capable of quickly replacing a sanding belt, as proposed by the utility model;

[0021] Figure 3 This is an enlarged structural schematic diagram of part A of a sanding machine capable of quickly replacing a sanding belt proposed by the utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of an adjustment structure in a sanding machine capable of quickly replacing a sanding belt proposed by the utility model;

[0023] Figure 5 It is a top-sectional schematic diagram of an adjustment structure in a sanding machine capable of quickly replacing a sanding belt proposed by the utility model;

[0024] Figure 6 The utility model is a schematic diagram of the three-dimensional structure of a driven wheel in a sanding machine capable of quickly replacing a sanding belt.

[0025] Legend:

[0026] 1. Handle; 2. Driving assembly; 3. Auxiliary grip; 4. Driving wheel; 5. Connecting frame; 6. Through slot; 7. Driven wheel; 8. Abrasive belt body; 9. Slot; 10. Slide slot; 11. Sliding slot; 12. Rectangular block; 13. Adjustment structure; 131. Sliding block; 132. Adjustment block; 133. Connecting rod; 134. Mounting box; 135. Articulated seat; 136. Locking frame; 137. Push rod; 138. Spring; 139. Insert rod; 140. Block; 14. Socket. DETAILED DESCRIPTION

[0027] 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 in 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.

[0028] Reference Figures 1 to 6The utility model provides a sanding machine for quickly replacing abrasive belts: it comprises a handle 1, a driving assembly 2 is fixedly arranged at one end of the handle 1, an auxiliary grip 3 is fixedly arranged at the front of the handle 1, a driving wheel 4 is arranged on the driving assembly 2, a connecting frame 5 is fixedly arranged at the front of the driving assembly 2, a through slot 6 is arranged on the connecting frame 5, a driven wheel 7 is movably arranged in the through slot 6, a clamping slot 9 is arranged on the front inner wall and the back inner wall of the through slot 6, a slide slot 10 is arranged at the front and back of the connecting frame 5, the slide slot 10 is communicated with the clamping slot 9, two sliding slots 11 are arranged at the front and back of the connecting frame 5, a rotating shaft is fixedly arranged at both sides of the driven wheel 7, a rectangular block 12 is movably arranged at the ends away from the two rotating shafts, a groove is arranged on the side of the rectangular block 12 close to the driven wheel 7, a bearing is fixedly arranged in the groove, the inner ring of the bearing is fixedly sleeved on the rotating shaft, and the rectangular block 12 is movably connected with the clamping slot 9;

[0029] Reference Figure 5 In order to achieve the purpose of adjustment, the driven wheel 7 and the driving wheel 4 are sleeved with the same sanding belt body 8, and the front and back sides of the connecting frame 5 are movably provided with an adjustment structure 13, and the adjustment structure 13 includes two sliding blocks 131 movably connected to the sliding groove 11, and one side of the two sliding blocks 131 is fixedly provided with the same adjustment block 132, and one end of the adjustment block 132 is fixedly provided with a connecting rod 133, and one end of the connecting rod 133 is fixedly connected to one side of the rectangular block 12, and the top of the adjustment block 132 is fixedly provided with a mounting box 134, and a hinge seat is fixedly provided on the inner wall of one side of the mounting box 134 135, a lock frame 136 is movably provided in the hinge seat 135, a plug rod 139 is movably provided on the inner wall of one side of the installation box 134, a plurality of plug holes 14 are provided on the front and back of the connecting frame 5, the plug holes 14 and the plug rod 139 are adapted, a push rod 137 is provided on the inner wall of the front side of the installation box 134, a spring 138 is fixedly provided on the inner wall of one side of the installation box 134, one end of the spring 138 is fitted with one side of the lock frame 136, the setting of the adjustment structure 13 can adjust the position of the driven wheel 7 to relax the abrasive belt, and then the abrasive belt body 8 can be removed and replaced, thereby improving the replacement efficiency;

[0030] Reference Figure 5 In order to achieve the purpose of rapid positioning, a card block 140 is fixed on the insertion rod 139, and the locking frame 136 includes a locking rod and a locking buckle. The sides of the locking buckle and the card block 140 that are close to each other are provided with inclined surfaces, and the inclined surface on one side of the card block 140 is parallel to the inclined surface on one side of the locking buckle. When the insertion rod 139 is squeezed, the card block 140 will squeeze the locking frame 136. When the inclined surfaces are in contact, the spring 138 is squeezed. When the inclined surfaces are out of contact, the locking frame 136 is re-locked on the card block 140, thereby achieving rapid positioning of the insertion rod 139.

[0031] Working principle: When the abrasive belt body 8 needs to be replaced, first squeeze the push rod 137 on one side of the two installation boxes 134 inward, and the push rod 137 squeezes the lock frame 136, and the lock frame 136 rotates in the hinge seat 135. When the lock buckle of the lock frame 136 is out of contact with the card block 140, pull the plug rod 139 outward to make one end of the plug rod 139 disengage from the socket 14, and then simultaneously push the two adjustment blocks 132 in the direction close to the driving wheel 4, the adjustment block 132 drives the connecting rod 133, and the connecting rod 133 drives the rectangular block 12, and the rectangular block 12 moves in the card slot 9 and drives the driven wheel 7 to move. When the abrasive belt body 8 is loose, stop pushing the adjustment block 132, and then pull the abrasive belt body 8 outward, and the abrasive belt body 8 can be removed and replaced. The body 8 is sleeved on the driving wheel 4 and the driven wheel 7, and then the two adjusting blocks 132 are pulled in the direction away from the driving wheel 4, and the adjusting block 132 drives the connecting rod 133, and the connecting rod 133 drives the rectangular block 12, and the rectangular block 12 drives the driven wheel 7. When the sanding belt body 8 is in a taut state, the plug rod 139 is squeezed inward, and the plug rod 139 drives the card block 140, and the card block 140 squeezes the lock on one side. When the inclined surface of the lock and the inclined surface of the card block 140 are out of contact, the spring 138 pushes the lock frame 136 to make its lock re-stuck on the card block 140 to achieve the positioning of the plug rod 139. When the plug rod 139 is inserted into the socket 14 and the adjusting block 132 is fixed, the squeezing of the plug rod 139 can be stopped, and the installation and replacement of the sanding belt body 8 is completed.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 sanding machine capable of quickly replacing a sanding belt, comprising a handle (1), characterized in that: A driving assembly (2) is fixedly provided at one end of the handle (1), an auxiliary grip (3) is fixedly provided at the front of the handle (1), a driving wheel (4) is provided on the driving assembly (2), a connecting frame (5) is fixedly provided at the front of the driving assembly (2), a through slot (6) is provided on the connecting frame (5), a driven wheel (7) is movably provided in the through slot (6), the driven wheel (7) and the driving wheel (4) are sleeved with the same sanding belt body (8), and an adjustment structure (13) is movably provided at the front and back of the connecting frame (5).

2. A sanding machine capable of quickly replacing the sanding belt according to claim 1, characterized in that: The front inner wall and the back inner wall of the through slot (6) are both provided with a clamping slot (9), the front and back of the connecting frame (5) are both provided with a slide slot (10), the slide slot (10) and the clamping slot (9) are communicated, the front and back of the connecting frame (5) are both provided with two sliding slots (11), the two sides of the driven wheel (7) are both fixedly provided with a rotating shaft, the ends of the two rotating shafts facing away from each other are both movably provided with a rectangular block (12), and the rectangular block (12) and the clamping slot (9) are movably connected.

3. A sanding machine capable of quickly replacing the sanding belt according to claim 2, characterized in that: A groove is provided on one side of the rectangular block (12) close to the driven wheel (7), a bearing is fixedly provided in the groove, and the inner ring of the bearing is fixedly sleeved on the rotating shaft.

4. A sanding machine capable of quickly replacing the sanding belt according to claim 2, characterized in that: The adjustment structure (13) comprises two sliding blocks (131) movably connected to the sliding groove (11); one side of the two sliding blocks (131) is fixedly provided with the same adjustment block (132); one end of the adjustment block (132) is fixedly provided with a connecting rod (133); one end of the connecting rod (133) is fixedly connected to one side of the rectangular block (12); a mounting box (134) is fixedly provided on the top of the adjustment block (132); and a mounting box (134) is fixedly provided on the inner wall of one side of the mounting box (134). A hinged seat (135) is fixedly provided, a lock frame (136) is movably provided in the hinged seat (135), an insertion rod (139) is movably provided on an inner wall of one side of the installation box (134), a clamping block (140) is fixedly provided on the insertion rod (139), a push rod (137) is provided on the front inner wall of the installation box (134), a spring (138) is fixedly provided on the inner wall of one side of the installation box (134), and one end of the spring (138) is in contact with one side of the lock frame (136).

5. A sanding machine capable of quickly replacing the sanding belt according to claim 4, characterized in that: The lock frame (136) comprises a lock rod and a lock buckle, and the lock buckle and the clamping block (140) are both provided with an inclined surface on one side thereof, and the inclined surface on one side of the clamping block (140) is parallel to the inclined surface on one side of the lock buckle.

6. A sanding machine capable of quickly replacing the sanding belt according to claim 4, characterized in that: The front and back sides of the connecting frame (5) are both provided with a plurality of plug holes (14), and the plug holes (14) and the plug rods (139) are matched with each other.

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