Water sand polishing equipment

Abstract

The utility model discloses a water sand polishing device which comprises a working table, a saw blade capable of rotating horizontally is arranged on the table top of the working table, a polishing wheel is arranged above the saw blade, an abrasive belt making contact with the polishing face of the saw blade is arranged on the side wall of the polishing wheel, and a liquid spraying pipe used for spraying water liquid to the polishing face of the saw blade is arranged on the adjacent side of the saw blade. The positioning device further comprises a lower positioning block and an upper positioning block arranged above the lower positioning block, a positioning rod is coaxially arranged at the axis of the lower positioning block and the axis of the upper positioning block, and a plurality of elastic blocks evenly distributed in the circumferential direction are annularly arranged on the side wall of the positioning rod. And a center hole of the saw blade is fixed on each elastic block and is positioned between the upper positioning block and the lower positioning block. The circular saw blade fixing device has the advantages of being capable of fixing circular saw blades of different sizes, wide in application range, small in water consumption, capable of saving water, environmentally friendly and the like.

Description

Technical Field

[0001] The utility model belongs to polishing equipment, in particular to water sand polishing equipment. Background Art

[0002] In the prior art, the saw blade and the motor cooperate to achieve the cutting of the material. During the production process of the existing circular saw blade, the outer circle of the saw blade teeth needs to be polished; in the Chinese patent with publication number CN210307183U, a fully automatic polishing machine with sanding belt and water is disclosed, including a frame, a circulating water tank, an automatic flip robot, a three-station robot, a vertical sheet collection mechanism, a dustproof sealing cover, a water-adding polishing work chamber, a sanding belt moving CNC mechanism, a vertical polishing suction cup, a flat saw blade feeding mechanism and a CNC electrical cabinet; a workbench is installed above the frame, and a three-station robot is installed above the workbench. On one side of the three-station robot, a flat saw blade feeding mechanism and a vertical sheet collection mechanism are installed through a lifting drive screw.

[0003] In the prior art, due to the differences in the sizes of circular saw blades, the inner diameters of the center holes of the circular saw blades also vary, and the fixing structure of the circular saw blades is single, so the polishing equipment cannot be applied to circular saw blades of different sizes, and its use is limited. Utility Model Content

[0004] The utility model aims to provide a water sand polishing device, which solves the problems existing in the prior art such as being unable to adapt to circular saw blades of different sizes.

[0005] The above technical purpose of the present utility model is mainly solved by the following technical solutions: a water sand polishing equipment, including a workbench, a horizontally rotatable saw blade is provided on the workbench surface, a polishing wheel is provided above the saw blade, a sanding belt in contact with the polishing surface of the saw blade is provided on the side wall of the polishing wheel, a spray pipe for spraying water on the polishing surface of the saw blade is provided on the adjacent side of the saw blade, and also includes a lower positioning block and an upper positioning block provided above the lower positioning block, a coaxially arranged positioning rod is provided at the axis center of the lower positioning block and the upper positioning block, a plurality of circumferentially evenly distributed elastic blocks are arranged on the side wall of the positioning rod, and the center hole of the saw blade is fixed on each elastic block and is located between the upper positioning block and the lower positioning block.

[0006] As a further preferred technical solution of the present invention, the upper positioning block is coaxially connected to the positioning rod, and the upper positioning block can move relative to the lower positioning block along the axis direction of the positioning rod and is locked by a bolt.

[0007] As a further preferred technical solution of the present invention; a receiving groove is provided on the side wall of the positioning rod, which cooperates with the elastic block, a limiting cavity is provided on the inner wall of the receiving groove, and a limiting column is provided on the elastic block, which cooperates with the limiting cavity and can move in the limiting cavity, and a telescopic spring connected to the end of the limiting column is provided in the limiting cavity.

[0008] As a further preferred technical solution of the present invention, an annular groove is provided on the bottom surface of the upper positioning block corresponding to the circumference of the positioning rod, and the inner diameter of the annular groove is not less than the maximum outer diameter of the elastic block.

[0009] As a further preferred technical solution of the present invention, a first annular support portion is provided at the bottom edge of the upper positioning block, and a second annular support portion corresponding to the position of the first annular support portion is provided at the top edge of the lower positioning block.

[0010] As a further preferred technical solution of the present invention, a fixed cavity cooperating with the positioning rod is provided at the axis of the lower positioning block, the bottom of the fixed cavity is open, and the opening at the bottom of the fixed cavity is provided with a sealing cover cooperating with the threaded inner wall of the fixed cavity.

[0011] As a further preferred technical solution of the present invention, a reset spring is provided between the cover and the bottom of the positioning rod, a limiting protrusion is provided on the lower side wall of the positioning rod, and a limiting groove cooperating with the limiting protrusion is provided on the inner wall of the fixed cavity.

[0012] Therefore, the utility model has the characteristics of being able to fix circular saw blades of different sizes, having a wider range of applications, using less water, being more water-saving and environmentally friendly, and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the upper positioning block and the lower positioning block;

[0015] Figure 3 yes Figure 2 A magnified view of the structure at A in FIG;

[0016] Figure 4 yes Figure 1 Schematic diagram of the structure of the lower positioning block and positioning rod. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0018] like Figure 1-4As shown, a water sand polishing device includes a workbench 1, a saw blade 2 that can rotate horizontally is provided on the workbench 1, a polishing wheel 31 is provided above the saw blade 2, an abrasive belt 32 in contact with the polishing surface of the saw blade 2 is provided on the side wall of the polishing wheel 31, a spray pipe 11 for spraying water on the polishing surface of the saw blade 2 is provided on the adjacent side of the saw blade 2, and further includes a lower positioning block 41 and an upper positioning block 42 provided above the lower positioning block 41, a coaxial positioning rod 43 is provided at the axis center of the lower positioning block 41 and the upper positioning block 42, and a plurality of positioning rods 43 are provided on the side wall of the positioning rod 43. There are elastic blocks 44 evenly distributed around the circumference, and the center hole of the saw blade 2 is fixed on each elastic block 44 and is located between the upper positioning block 42 and the lower positioning block 41; the upper positioning block 42 is coaxially connected to the positioning rod 43, and the upper positioning block 42 can move relative to the lower positioning block 41 along the axial direction of the positioning rod 43 and is locked by a bolt 421. A first annular support portion 423 is provided at the edge of the bottom surface of the upper positioning block 42, and a second annular support portion 411 corresponding to the position of the first annular support portion 423 is provided at the edge of the top surface of the lower positioning block 41.

[0019] After the saw blade is produced, it is fixed on the workbench in a horizontal state and fixed on the workbench table through the lower positioning block and the upper positioning block. A servo motor connected to the lower positioning block is provided under the workbench, which can fix the saw blade and drive the saw blade to rotate horizontally through the lower positioning block and the upper positioning block. The polishing wheel rotates and drives the sanding belt to rotate rapidly, and drives the sanding belt close to the polishing part of the saw blade until it abuts. The saw blade rotates horizontally synchronously, so that the sanding belt can polish the polishing part of the outer circle of the saw blade in an all-round and uniform manner to ensure the polishing quality. The spray pipe arranged on the adjacent side of the saw blade can spray water on the polishing part when the sanding belt is polishing. The spraying area is small, less water is used, it is more water-saving and environmentally friendly, and effectively realizes water sand polishing.

[0020] A driving motor for driving the sanding belt to move is set on the other side of the saw blade. The end of the output rod of the driving motor is connected to the driving wheel. The side wall of the driving wheel and the side wall of the polishing wheel are connected through the sanding belt in the form of a transmission belt structure. When the driving wheel is driven to rotate by the driving motor, the sanding belt is driven by the driving wheel and supported by the polishing wheel to achieve stable and rapid movement for easy polishing. The bottom of the driving motor is connected to the movable end of the linear guide rail, so that the driving motor can be moved by the control of the linear guide rail to adjust the position of the polishing wheel, adapt to saw blades of different sizes and facilitate the disassembly and assembly of the saw blade.

[0021] The lower positioning block is coaxially connected to the output shaft of the servo motor. The servo motor drives the lower positioning block to rotate. The lower positioning block and the upper positioning block clamp and fix the saw blade, thereby driving the saw blade to rotate through the lower positioning block. The positioning rod is coaxially arranged with the lower positioning block and the upper positioning block, and the upper positioning block is sleeved on the positioning rod and can move axially along the positioning rod. The elastic block on the side wall of the positioning rod can be radially extended and contracted. The various elastic blocks are mutually enclosed to form a circular limiting structure. The connection structure between each elastic block and the positioning rod is consistent, the distance is consistent, and the distribution is uniform. Saw blades of different sizes are sleeved into the positioning rod. Then, if the inner diameter of the center hole of the saw blade is larger, the side walls of the center hole of the saw blade are stuck on the outer walls of each elastic block, and the saw blade is centered by the elastic block, so that the saw blade is kept at the position of the rotation center, and the first annular support part and the second annular support part are respectively in contact with the upper end face and the lower end face of the saw blade, so as to realize the upper and lower clamping and fixation of the saw blade, reduce the contact area with the saw blade, avoid stress damage to the saw blade caused by excessive pressure, and ensure the fixation stability of the saw blade. The longitudinal positions of the first annular support part and the second annular support part are consistent, so as to realize relative clamping of the saw blade.

[0022] After the saw blade is inserted into the side wall of the elastic block and centered, the lower end face of the saw blade is close to the end face of the second annular support part, and then the upper positioning block is inserted into the positioning rod and moved down to the first annular support part to abut and press the upper end face of the saw blade, and then the bolt and gasket are tightened to the upper part of the positioning rod. The upper part of the positioning rod is provided with a threaded section that cooperates with the bolt thread. After the bolt is tightened, the upper positioning block cooperates with the lower positioning block to clamp the saw blade to prevent the saw blade from loosening. Soft pads can be provided on the end faces of the first annular support part and the second annular support part to increase the fixing force on the saw blade and increase the protection effect of the saw blade to prevent the first annular support part and the second annular support part from crushing the saw blade.

[0023] like Figure 2-3As shown, a receiving groove 431 is provided on the side wall of the positioning rod 43, and a limiting cavity 432 is provided on the inner wall of the receiving groove 431. A limiting column 441 is provided on the elastic block 44 to cooperate with the limiting cavity 432 and can move in the limiting cavity 432. A telescopic spring 433 connected to the end of the limiting column 441 is provided in the limiting cavity 432. An annular groove 422 is provided on the bottom surface of the upper positioning block 42 corresponding to the circumference of the positioning rod 43, and the inner diameter of the annular groove 422 is not less than the maximum outer diameter of the elastic block 44; the above-mentioned elastic block cooperates with the receiving groove and can be embedded in the receiving groove. When the inner diameter of the center hole of the saw blade is consistent with the outer diameter of the positioning rod, the saw blade can be stuck on the side wall of the positioning rod, and the elastic block shrinks into the receiving groove and is centered by the positioning rod. When the inner diameter of the center hole of the saw blade is larger than the outer diameter of the positioning rod. The elastic block supports the side wall of the center hole of the saw blade through the action of the telescopic spring to achieve centering effect. The limit column limits and guides the movement of the elastic block to prevent the elastic block from tilting and offsetting when moving, which affects the centering effect of the saw blade. The annular groove of the upper positioning block is set so that when the upper positioning block and the lower positioning block clamp the saw blade, if the inner diameter of the center hole of the saw blade is larger than the positioning rod, the elastic block will protrude from the side wall of the positioning rod. At this time, the annular groove can accommodate the excess height of the elastic block to avoid the upper and lower positioning blocks being unable to close and clamp due to longitudinal interference from the elastic block.

[0024] like Figure 2 As shown, a fixing cavity 412 cooperating with the positioning rod 43 is provided at the axis center of the lower positioning block 41, and the bottom of the fixing cavity 412 is open, and a sealing cover 413 is provided at the opening of the bottom of the fixing cavity 412, which is threadedly engaged with the inner wall of the fixing cavity 412, and a return spring 414 is provided between the sealing cover 413 and the bottom of the positioning rod 43, and a limiting protrusion 434 is provided on the lower side wall of the positioning rod 43, and a limiting groove 415 cooperating with the limiting protrusion 434 is provided on the inner wall of the fixing cavity 412; the above-mentioned sealing cover is tightened at the opening of the fixing cavity by threads to facilitate the assembly of the positioning rod and the return spring, and at the same time support the return spring so that the positioning rod can move axially reciprocatingly, and the limiting protrusion on the side wall of the above-mentioned positioning rod is engaged in the limiting groove of the fixing cavity to limit and guide the axial movement of the positioning rod, thereby maintaining the stability of the movement of the positioning rod and avoiding fixed The positioning rod moves upward out of the fixed cavity and separates from the lower positioning block. When the saw blade is put onto the positioning rod, the positioning rod is first driven downward, and the elastic block contracts into the accommodating groove, so that the elastic block is limited by the side wall of the fixed cavity and maintained in the accommodating groove. At this time, the saw blade can be placed on the lower positioning block, and then the positioning rod is released. The positioning rod automatically moves up under the action of the reset spring, and the elastic block gradually moves up with the positioning rod until the elastic block is located inside the center hole of the saw blade. At this time, the elastic block is still limited by the fixed cavity and maintained in the accommodating groove. Then the positioning rod continues to move upward until the elastic block is separated from the fixed cavity, and the elastic block moves toward the side wall of the center hole of the saw blade under the action of the telescopic spring. Each elastic block expands outward synchronously until it abuts against the side wall of the center hole of the saw blade, which is not affected by the size of the saw blade, thereby completing the centering of the saw blade. It has a simple structure, is easy to operate, and is very convenient to use, which greatly increases the scope of application.

[0025] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A water sand polishing device, comprising a workbench (1), a saw blade (2) that can rotate horizontally is provided on the workbench (1), a polishing wheel (31) is provided above the saw blade (2), an abrasive belt (32) that contacts the polishing surface of the saw blade (2) is provided on the side wall of the polishing wheel (31), and a spray pipe (11) for spraying water on the polishing surface of the saw blade (2) is provided on the adjacent side of the saw blade (2), characterized in that: The saw blade (2) further comprises a lower positioning block (41) and an upper positioning block (42) arranged above the lower positioning block (41); a coaxially arranged positioning rod (43) is provided at the axis center of the lower positioning block (41) and the upper positioning block (42); a plurality of circumferentially evenly distributed elastic blocks (44) are arranged on the side wall of the positioning rod (43); the center hole of the saw blade (2) is fixed on each elastic block (44) and is located between the upper positioning block (42) and the lower positioning block (41).

2. The water sand polishing equipment according to claim 1, characterized in that: The upper positioning block (42) is coaxially connected to the positioning rod (43). The upper positioning block (42) can move relative to the lower positioning block (41) along the axis direction of the positioning rod (43) and is locked by a bolt (421).

3. The water sand polishing equipment according to claim 1, characterized in that: The side wall of the positioning rod (43) is provided with a receiving groove (431) that cooperates with the elastic block (44), the inner wall of the receiving groove (431) is provided with a limiting cavity (432), the elastic block (44) is provided with a limiting column (441) that cooperates with the limiting cavity (432) and can move in the limiting cavity (432), and the limiting cavity (432) is provided with a telescopic spring (433) connected to the end of the limiting column (441).

4. The water sand polishing equipment according to any one of claims 1 to 3, characterized in that: An annular groove (422) is provided on the bottom surface of the upper positioning block (42) corresponding to the peripheral side of the positioning rod (43), and the inner diameter of the annular groove (422) is not less than the maximum outer diameter of the elastic block (44).

5. The water sand polishing equipment according to any one of claims 1 to 3, characterized in that: A first annular support portion (423) is provided at the bottom edge of the upper positioning block (42), and a second annular support portion (411) corresponding to the position of the first annular support portion (423) is provided at the top edge of the lower positioning block (41).

6. The water sand polishing equipment according to claim 1, characterized in that: A fixing cavity (412) cooperating with the positioning rod (43) is provided at the axis of the lower positioning block (41), the bottom of the fixing cavity (412) is open, and a sealing cover (413) threadedly cooperating with the inner wall of the fixing cavity (412) is provided at the opening of the bottom of the fixing cavity (412).

7. The water sand polishing equipment according to claim 6, characterized in that: A return spring (414) is provided between the cover (413) and the bottom of the positioning rod (43); a limiting protrusion (434) is provided on the lower side wall of the positioning rod (43); and a limiting groove (415) is provided on the inner wall of the fixing cavity (412) to cooperate with the limiting protrusion (434).

Images