CN219633400U

CN219633400U - Curved surface sander

Info

Publication number: CN219633400U
Application number: CN202320850776.7U
Authority: CN
Inventors: 史扬帆; 董永胜
Original assignee: Kingtec Industrial Co ltd
Current assignee: Kingtec Industrial Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-09-05
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses a curved surface sander, which comprises an operation table and a plurality of rotary workpieces; the rotary workpiece comprises a rotary shaft and a sanding disc, and a connecting table extends from the sanding disc towards the direction of the rotary shaft; the operation table is provided with a plurality of connecting holes, at least one part of the rotating shaft and the connecting table are arranged in the connecting holes in a penetrating way, and the connecting table is connected with the rotating shaft in a sliding way up and down; the periphery of the connecting table is sleeved with a limiting piece, the limiting piece is positioned in the connecting hole, and the arc concave hole wall of the connecting hole is attached to the arc outer convex wall surface of the limiting piece. The utility model enables the curved surface sander to be used for polishing a plane or a curved surface object by the inclined movement of the rotary workpiece during working.

Description

Curved surface sander

Technical Field

The utility model relates to the technical field of workpiece processing equipment, in particular to a curved surface sander.

Background

Sanding (or polishing) is to polish some uneven, uneven thickness, material or articles which do not meet the technological requirements, while a curved surface sander is a device for sanding the surface of a curved plate, when polishing different curved plates, sand drum sand sleeves with different diameters are needed, and the sand drum sand sleeves are smoother, smoother and even in thickness. Among them, sanding machines are commonly used sanding tools, and particularly when wooden workpieces are processed, sanding machines are often used for surface finishing.

At present, most sanding machines for wood finish machining are one or a plurality of rotary working surfaces, so that when a polished object is a plane, the polished area can be larger, and the polishing efficiency is high. However, when the object to be polished is a curved surface material, the sander with this structure has a certain limitation.

Disclosure of Invention

The utility model aims to solve the defects of the technology and design the technology to improve the use effect and the practical performance.

The utility model relates to a curved surface sander, which comprises an operation table and a plurality of rotary workpieces; the rotary workpiece comprises a rotary shaft and a sanding disc, and a connecting table extends from the sanding disc towards the direction of the rotary shaft; the operation table is provided with a plurality of connecting holes, at least one part of the rotating shaft and the connecting table are arranged in the connecting holes in a penetrating way, and the connecting table is connected with the rotating shaft in a sliding way up and down; the periphery of the connecting table is sleeved with a limiting piece, the limiting piece is positioned in the connecting hole, and the arc concave hole wall of the connecting hole is attached to the arc convex wall of the limiting piece.

Through adopting above-mentioned technical scheme, but with rotation axis and rotation work piece tilting swing joint, rotation work piece can tilting activity at the during operation, makes curved surface grinder can be used for the polishing of plane or curved surface object to handle, has improved grinder's application scope, and simple structure, and implementation feasibility is high.

Optionally, the limiting part comprises a bearing sleeved on the periphery of the connecting table and a bearing sleeve sleeved on the outer side of the bearing.

Through adopting above-mentioned technical scheme, the cooperation of bearing and bearing housing can improve the stability of rotatory work piece, and then improves the planarization that grinder curved surface polished.

Optionally, a fixing hole through which the rotating shaft passes is formed in the table top of the connecting table.

Optionally, the rotation axis extends towards the lateral wall of connection platform one end has the locating piece, the lateral wall of connection platform is seted up and is supplied the constant head tank of locating piece grafting, the constant head tank with the fixed orifices communicates with each other.

By adopting the technical scheme, the positioning block is inserted into the positioning groove on the connecting table, and then the rotating shaft drives the positioning block to further force the connecting table to rotate when rotating.

Optionally, a relief groove is formed in the side wall of the connection platform, and the relief groove is communicated with the fixing hole.

Through adopting above-mentioned technical scheme, letting the groove can provide the space when curved surface grinder is at the during operation and dodging, have certain buffering effect, reduce the probability that the connection platform bursts apart when high-speed rotation.

Optionally, a flange is formed at the upper end edge of the side wall of the connecting table towards one side of the bearing, and the radius of the outer edge of the flange is larger than the inner diameter of the bearing, so that the lower end face of the flange is abutted with the inner edge of the bearing.

Through adopting above-mentioned technical scheme, the turn-ups forms along the upper end of connecting bench lateral wall towards one side of bearing for locating part and rotatory work piece become an organic wholely, reduce the probability that the locating part dropped from the connecting bench at curved surface grinder during operation.

Optionally, the curved surface sander comprises three rotating working pieces, wherein each rotating working piece is positioned on the same plane and is respectively arranged at three points of an equilateral triangle in a distributed manner.

Optionally, the operation panel is provided with three the rotatory work piece simultaneously rotatory gear train and drive the motor of gear train pivoted, intermesh between the gear train and with the motor meshing is connected.

Through adopting above-mentioned technical scheme, the gear train adopts one-level driven mode, makes curved surface grinder's inner structure compacter on the one hand, has reduced curved surface grinder's whole volume, on the other hand makes curved surface grinder's drive mechanism stability better.

The curved surface sander has the following beneficial effects;

1. the rotary shaft is connected with the rotary workpiece in a tilting mode, and the rotary workpiece can move in a tilting mode during working, so that the curved surface sander can be used for polishing a plane or curved surface object.

2. The utility model adopts the detachable connection between the rotary workpiece and the rotary shaft, thereby facilitating the installation or replacement of the rotary workpiece.

3. The gear set adopts a primary transmission mode, so that the internal structure of the curved surface sander is more compact, the whole volume of the curved surface sander is reduced, and the stability of a transmission mechanism of the curved surface sander is better.

Drawings

FIG. 1 is a schematic view of the overall structure of a curved surface sander according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an exploded construction of a curved sander in accordance with an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a curved sander according to an embodiment of the present utility model;

fig. 4 is a schematic view of the overall structure of the rotary tool according to the embodiment of the present utility model.

1. An operation table; 11. a connection hole; 111. an arc-shaped concave hole wall; 2. a motor; 3. a gear set; 4. rotating the work piece; 41. a rotation shaft; 411. a positioning block; 42. a sand optical disc; 43. a connection station; 431. a fixing hole; 432. a positioning groove; 433. flanging; 435. a relief groove; 44. a limiting piece; 441. a bearing; 442. a bearing sleeve; 443. an arc-shaped outer convex wall.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1, the curved surface sander described in this embodiment includes an operation table 1 and a plurality of rotating workpieces 4 disposed on the operation table 1, specifically, three rotating workpieces 4 are disposed on the operation table 1, and the bottom surfaces of the rotating workpieces 4 are located on the same plane and are respectively located at three points of an equilateral triangle for installation, so as to improve the smoothness of curved surface sanding. In addition, the operation table 1 is provided with a gear set 3 for driving the three rotary workpieces 4 to rotate simultaneously and a motor 2 for driving the gear set 3 to rotate, and the gear sets 3 are meshed with each other and connected with the motor 2 in a meshed manner. In the embodiment, the gear set 3 adopts a primary transmission mode, so that on one hand, the internal structure of the curved surface sander is more compact, the whole volume of the curved surface sander is reduced, and on the other hand, the stability of a transmission mechanism of the curved surface sander is better.

Referring to fig. 2, the rotary work 4 includes a rotary shaft 41 and a sand disk 42, and a connection table 43 integrally extends in the direction of the rotary shaft 41 from the sand disk 42. Three connecting holes 11 are formed in the operation table 1, at least one part of the rotating shaft 41 and the connecting table 43 penetrate through the connecting holes 11, and the connecting table 43 is connected with the rotating shaft 41 in a sliding manner up and down.

Referring to fig. 3, a stopper 44 is fitted around the connection table 43, and the stopper 44 is located in the connection hole 11. Specifically, the limiting member 44 includes a bearing 441 sleeved on the peripheral side of the connection platform 43, and a bearing sleeve 442 sleeved on the outer side of the bearing 441, wherein an inner wall of the bearing sleeve 442 is in interference fit with an outer wall of the bearing 441, and a through hole for the connection platform 43 to pass through is formed in the bottom of the bearing sleeve 442. The pore wall of the connecting hole 11 is provided with an arc-shaped inner concave pore wall, and an arc-shaped outer convex wall which is arranged on the outer wall of the limiting piece 44 (the outer wall of the bearing sleeve 442) is attached to the arc-shaped inner concave pore wall, so that the limiting piece 44 is positioned in the connecting hole 11, and the limiting piece 44 can be positioned in the connecting hole 11 to incline and turn left and right. The proposal ensures that the rotary workpiece 4 can move obliquely during working, thereby enabling the curved surface sander to be used for polishing planar or curved surface objects.

Referring to fig. 3, a flange 433 is formed at an upper end edge of a side wall of the connection table 43 toward one side of the bearing 441, and a radius of an outer edge of the flange 433 is larger than an inner diameter of the bearing 441 so that a lower end face of the flange 433 is abutted to an inner edge of the bearing 441, and further the limiting piece 44 and the rotary workpiece 4 are integrated in an installation process.

Referring to fig. 3 and 4, a fixing hole 431 through which the rotation shaft 41 passes is formed in the top of the connection table 43. Meanwhile, the side wall of the rotating shaft 41, which faces one end of the connecting table 43, is extended with a positioning block 411, the side wall of the connecting table 43 is provided with a positioning slot 432 for inserting the positioning block 411, and the positioning slot 432 is communicated with the fixing hole 431. When the positioning block 411 is inserted into the positioning groove 432 on the connection table 43, the rotation shaft 41 drives the positioning block 411 to further force the connection table 43 to rotate during rotation. In addition, the positioning blocks 411 on two sides of the rotation shaft 41 are two cylindrical rods, and the bottom of the positioning groove 432 is provided with a curved surface suitable for the radian of the outer wall of the cylindrical rod, so that a buffering effect can be achieved when the curved surface sanding machine polishes an inclined curved surface.

As a further preference, referring to fig. 4, the sidewall of the connection stage 43 is provided with a relief groove 435, and the relief groove 435 communicates with the fixing hole 431. When the curved surface sander works, the abdication groove 435 can provide space avoidance, has a certain buffering effect, and reduces the probability of cracking of the connection table 43 during high-speed rotation.

The implementation principle of the curved surface sander described in the embodiment is as follows: firstly, a bearing sleeve 442 is sleeved on a bearing 441, and passes through a through hole on the bearing sleeve 442 and the inner wall of the bearing 441 through a connecting table 43, so that the lower end surface of a flange 433 on the connecting table 43 is abutted with the inner edge of the bearing 441; secondly, the connecting table 43 sleeved with the limiting piece 44 is arranged in the connecting hole 11 in a penetrating way, the arc-shaped outer convex wall is attached to the arc-shaped concave hole wall, the limiting piece 44 is positioned in the connecting hole 11, and meanwhile, the positioning block 411 on the rotating shaft 41 is inserted into the positioning groove 432 on the connecting table 43; finally, the gear set 3 and the motor 2 are matched and installed on the operation table 1, so that the curved surface sander is assembled.

The present utility model is not limited to the above-mentioned preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model can make any changes in shape or structure, and all the technical solutions that are the same or similar to the present utility model fall within the scope of the present utility model.

Claims

1. The curved surface sander is characterized by comprising an operating table (1) and a plurality of rotary workpieces (4);

the rotary workpiece (4) comprises a rotary shaft (41) and a sanding disc (42), and a connecting table (43) extends from the sanding disc (42) towards the rotary shaft (41);

the operation table (1) is provided with a plurality of connecting holes (11), at least one part of the rotating shaft (41) and the connecting table (43) are arranged in the connecting holes in a penetrating mode, and the connecting table (43) is connected with the rotating shaft (41) in a sliding mode up and down;

the periphery of the connecting table (43) is sleeved with a limiting piece (44), the limiting piece (44) is located in the connecting hole (11), and the arc-shaped inner concave hole wall (111) of the connecting hole (11) is attached to the arc-shaped outer convex wall (443) of the limiting piece (44).

2. The curved surface sander according to claim 1, wherein the stopper (44) comprises a bearing (441) fitted around the periphery of the connection table (43) and a bearing sleeve (442) fitted around the bearing (441).

3. The curved surface sander according to claim 1, wherein the surface of the connection table (43) is provided with a fixing hole (431) through which the rotation shaft (41) passes.

4. A curved surface sander according to claim 3, wherein the side wall of the rotating shaft (41) towards one end of the connecting table (43) extends to form a positioning block (411), a positioning groove (432) for inserting the positioning block (411) is formed in the side wall of the connecting table (43), and the positioning groove (432) is communicated with the fixing hole (431).

5. A curved surface sander according to claim 3, wherein the side wall of the connection table (43) is provided with a relief groove (435), and the relief groove (435) is communicated with the fixing hole (431).

6. The curved surface sander according to claim 2, wherein a flange (433) is formed at an upper end edge of the side wall of the connection table (43) toward one side of the bearing (441), and a radius of an outer edge of the flange (433) is larger than an inner diameter of the bearing (441) so that a lower end face of the flange (433) is abutted against an inner edge of the bearing (441).

7. The curved surface sander according to claim 1, comprising three said rotary work pieces (4), each of said rotary work pieces (4) being in the same plane and being mounted in a three-point distribution of equilateral triangles, respectively.

8. The curved surface sander according to claim 7, wherein the operation table (1) is provided with a gear set (3) for driving the three rotating workpieces (4) to rotate simultaneously and a motor (2) for driving the gear set (3) to rotate, and the gear sets (3) are meshed with each other and connected with the motor (2) in a meshed manner.