Anti-cracking and anti-explosion resin grinding wheel

Abstract

The utility model discloses an anti-cracking and anti-explosion resin grinding wheel which comprises a resin grinding wheel body and a connecting shaft, the connecting shaft penetrates through the resin grinding wheel body and is in sliding fit with the resin grinding wheel body, the rear side of the outer wall of the connecting shaft is in threaded connection with a fixing block, and the anti-cracking and anti-explosion resin grinding wheel further comprises heat dissipation holes formed in the resin grinding wheel body. Four heat dissipation holes are annularly distributed at equal intervals, reset cavities are formed in the outer sides of the heat dissipation holes, the reset cavities communicate with the heat dissipation holes, shielding plates are arranged in the reset cavities, one ends of the shielding plates extend into the heat dissipation holes, and the shielding plates are in sliding fit with the heat dissipation holes. After the anti-cracking and anti-explosion resin grinding wheel is started, the shielding plate can be thrown into the reset cavity through centrifugal force, heat of the resin grinding wheel can be guided into the heat dissipation holes through the heat conduction graphite strips, the heat dissipation holes communicate with the outside, and therefore the heat can be dissipated into the environment, the effective heat dissipation effect is achieved, and burst caused by the fact that the temperature of the resin grinding wheel is too high is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of resin grinding wheels, in particular to a crack-proof and explosion-proof resin grinding wheel. Background Art

[0002] Resin grinding wheel is a kind of grinding tool made of resin as a binder. It is widely used in metal processing, automobile parts manufacturing, aerospace and other fields due to its high strength, excellent elasticity and self-sharpening. Resin grinding wheel can quickly and efficiently grind various materials, including metal, ceramics and glass, etc. It is particularly suitable for rough grinding, rough grinding, cutting and free grinding. It is easy to manufacture, with a short process cycle, and can adapt to different grinding needs. In addition, resin grinding wheel also has good heat resistance and adaptability, making it one of the indispensable grinding tools in modern industrial manufacturing.

[0003] The existing Chinese patent with announcement number CN218747028U discloses a flexibly replaceable resin grinding wheel, including a driving motor, a motor shaft and a mounting block, a resin grinding wheel assembly is arranged on the outside of the mounting block, a mounting groove is opened inside the mounting block, an active mechanism is rotatably connected to the middle of one side of the inner wall of the mounting groove, and driven mechanisms are arranged on both sides of the inside of the mounting groove close to the active mechanism.

[0004] Although the above scheme can flexibly replace the resin grinding wheel, the resin grinding wheel has poor heat dissipation efficiency. After long-term use, the grinding wheel is prone to bursting, which reduces its service life. Therefore, it does not meet the existing needs. In this regard, we propose a crack-proof and explosion-resistant resin grinding wheel. Utility Model Content

[0005] The utility model aims to provide a crack-proof and explosion-proof resin grinding wheel to solve the problem in the background art that the resin grinding wheel has insufficient heat dissipation effect after long-term use, resulting in heat accumulation, easy explosion and shortening of service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crack-proof and explosion-proof resin grinding wheel, comprising a resin grinding wheel and a connecting shaft, wherein the connecting shaft penetrates the resin grinding wheel, and the connecting shaft and the resin grinding wheel are slidably matched, and a fixing block is threadedly connected to the rear side of the outer wall of the connecting shaft;

[0007] It also includes heat dissipation holes, which are arranged inside the resin grinding wheel, and four heat dissipation holes are arranged in a circular shape and are evenly spaced, and reset cavities are arranged outside the heat dissipation holes, and the reset cavities are connected to the heat dissipation holes, and shielding plates are arranged inside the reset cavities, and one end of the shielding plates extends to the inside of the heat dissipation holes, and the shielding plates are slidably matched with the heat dissipation holes;

[0008] It also includes a transmission cavity, which is opened on the front side of the connecting shaft. A threaded rod is rotatably arranged inside the transmission cavity. A cross limit block is connected to the external thread of the threaded rod. The four ends of the cross limit block extend to the outside of the transmission cavity, and the cross limit block is slidably matched with the transmission cavity.

[0009] Preferably, one end of the shielding plate located inside the reset cavity is connected to the reset cavity via two reset springs.

[0010] Preferably, two groups of thermally conductive graphite strips are provided on both sides of the heat dissipation hole, and each group of thermally conductive graphite strips has two strips.

[0011] Preferably, guide rods are welded to the upper and lower ends inside the transmission cavity, and the guide rods all pass through the cross limit blocks, and the guide rods all slide in cooperation with the cross limit blocks.

[0012] Preferably, the cross limit block is welded with a clamping block on the rear side of one end outside the transmission cavity and on the front end of the fixed block, and the clamping block at the front end of the fixed block is provided with four clamping blocks distributed in a circular shape and at equal intervals, and the front and rear ends of the resin grinding wheel are provided with four clamping grooves distributed in a circular shape and at equal intervals, and the clamping grooves are all adapted to the clamping blocks.

[0013] Preferably, a receiving groove is provided at the front end of the transmission cavity, a rotating shaft is welded to the front end of the threaded rod, one end of the rotating shaft extends to the interior of the receiving groove, and the rotating shaft is rotatably matched with the receiving groove.

[0014] Preferably, a hexagonal socket is provided at the front end of the rotating shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model has four heat dissipation holes arranged in an annular shape and distributed equidistantly inside the resin grinding wheel. When the resin grinding wheel is started, the shielding plate can be thrown into the reset cavity by centrifugal force, so that the front and rear ends of the heat dissipation holes can be connected with the outside world. The heat of the resin grinding wheel can be introduced into the heat dissipation holes by the heat-conducting graphite strips. The heat dissipation holes are connected with the outside world so that the heat can be dissipated into the environment, thereby achieving an effective heat dissipation effect and avoiding the resin grinding wheel from bursting due to excessive temperature. At the same time, when not in use, the shielding plate can be restored to its position under the elastic action of the reset spring to block the heat dissipation holes and avoid dust from entering the heat dissipation holes and affecting the heat dissipation effect.

[0017] 2. The utility model opens a transmission cavity at the front of the connecting shaft. When the resin grinding wheel is fixed, the rotating shaft is rotated, the rotating shaft drives the threaded rod to rotate, and the threaded rod drives the limit block to move linearly synchronously, so that the limit block can squeeze and push the resin grinding wheel, and then the fixed block is rotated so that the resin grinding wheel can be installed between the limit block and the fixed block. At this time, the clamping block will be clamped into the inside of the clamping groove, so as to increase the firmness of the resin grinding wheel and avoid the relative rotation of the resin grinding wheel. The whole operation can be completed by rotating the rotating shaft and the fixed block, which is convenient and quick to use.

[0018] 3. The utility model has a storage groove at the front end of the connecting shaft. Since the hexagonal groove is provided at the front end of the rotating shaft, the rotating shaft can only be rotated by professional tools such as an hexagonal wrench, thereby avoiding the rotation of the threaded rod caused by accidental touch and avoiding affecting the fixing relationship of the resin grinding wheel. In addition, the storage groove can hide the rotating shaft to a certain extent, further improving the effect of preventing accidental touch, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a front view schematic diagram of the internal structure of the utility model;

[0021] Figure 3 It is a side view schematic diagram of the internal structure of the utility model;

[0022] Figure 4 For the utility model Figure 2 A partial enlarged view of the middle A area;

[0023] Figure 5 For the utility model Figure 3 A partial enlarged view of area B.

[0024] In the figure: 1. resin grinding wheel; 2. connecting shaft; 3. heat dissipation hole; 4. thermal conductive graphite strip; 5. reset chamber; 6. reset spring; 7. baffle plate; 8. transmission chamber; 9. threaded rod; 10. cross limit block; 11. guide rod; 12. rotating shaft; 13. hexagonal socket; 14. clamping block; 15. clamping slot; 16. storage slot; 17. fixing block. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5 The utility model provides a technical solution: a crack-proof and explosion-proof resin grinding wheel, comprising a resin grinding wheel 1 and a connecting shaft 2, wherein the connecting shaft 2 penetrates the resin grinding wheel 1, and the connecting shaft 2 and the resin grinding wheel 1 are slidably matched, and a fixing block 17 is threadedly connected to the rear side of the outer wall of the connecting shaft 2;

[0027] It also includes a heat dissipation hole 3, which is opened inside the resin grinding wheel 1, and four heat dissipation holes 3 are opened in a ring-shaped and equidistant distribution, and a reset cavity 5 is opened on the outside of the heat dissipation hole 3, and the reset cavity 5 is connected to the heat dissipation hole 3, and a shielding plate 7 is arranged inside the reset cavity 5, one end of the shielding plate 7 extends to the inside of the heat dissipation hole 3, and the shielding plate 7 is slidably matched with the heat dissipation hole 3;

[0028] It also includes a transmission cavity 8, which is opened on the front side of the connecting shaft 2. A threaded rod 9 is rotatably arranged inside the transmission cavity 8. A cross limit block 10 is threadedly connected to the outside of the threaded rod 9. The four ends of the cross limit block 10 extend to the outside of the transmission cavity 8, and the cross limit block 10 is slidably matched with the transmission cavity 8.

[0029] When in use, the rotation of the resin grinding wheel 1 generates centrifugal force, causing the baffle plate 7 to slide into the reset chamber 5, the front and rear ends of the heat dissipation holes 3 are opened, and the thermally conductive graphite strips 4 conduct heat to the heat dissipation holes 3, thereby achieving a good heat dissipation effect and avoiding the resin grinding wheel 1 from bursting due to excessive temperature. When not in use, the reset spring 6 causes the baffle plate 7 to slide back into the heat dissipation holes 3 to block dust and avoid affecting the heat dissipation effect.

[0030] See also Figure 4 , one end of the shielding plate 7 located inside the reset chamber 5 is connected to the reset chamber 5 through two reset springs 6. The shielding plate 7 is connected to the reset chamber 5 through the two reset springs 6, which can ensure that the shielding plate 7 can be stably maintained inside the heat dissipation hole 3 when not subject to external force, effectively preventing dust from entering. At the same time, when the centrifugal force disappears, the reset spring 6 can quickly reset the shielding plate 7;

[0031] See also Figure 2 , Figure 3 and Figure 4 Two groups of heat-conducting graphite strips 4 are arranged on both sides of the heat dissipation hole 3, and each group of heat-conducting graphite strips 4 is provided with two. The heat-conducting graphite strips 4 can significantly improve the heat conduction efficiency, ensure that the heat of the resin grinding wheel 1 can be quickly discharged, thereby effectively reducing the grinding wheel temperature and avoiding the risk of explosion;

[0032] See also Figure 5The upper and lower ends of the transmission cavity 8 are welded with guide rods 11, and the guide rods 11 all penetrate the cross limit block 10, and the guide rods 11 are slidably matched with the cross limit block 10. The sliding matching design of the guide rods 11 and the cross limit block 10 enables the cross limit block 10 to maintain stable linear movement while rotating;

[0033] See also Figure 2 and Figure 3 The cross limit block 10 is located at the rear side of one end outside the transmission chamber 8 and the front end of the fixed block 17. Both are welded with a clamping block 14, and the clamping block 14 at the front end of the fixed block 17 is equidistantly distributed in an annular shape. The front and rear ends of the resin grinding wheel 1 are both provided with four equidistantly distributed annular clamping grooves 15, and the clamping grooves 15 are all adapted to the clamping blocks 14. Through the adaptation design of the equidistantly distributed annular clamping blocks 14 and the clamping grooves 15, it can be ensured that the resin grinding wheel 1 can remain stable during the rotation process to avoid safety hazards caused by looseness;

[0034] See also Figure 5 A receiving groove 16 is provided at the front end of the transmission cavity 8, a rotating shaft 12 is welded at the front end of the threaded rod 9, one end of the rotating shaft 12 extends to the inside of the receiving groove 16, and the rotating shaft 12 is rotatably matched with the receiving groove 16. The rotational matching design of the receiving groove 16 and the rotating shaft 12 enables the hexagonal wrench to be easily inserted and rotate the rotating shaft 12, thereby controlling the rotation of the threaded rod 9 and the cross limit block 10, and realizing the installation and removal of the grinding wheel;

[0035] See also Figure 1 and Figure 5 A hexagon socket 13 is provided at the front end of the rotating shaft 12. The hexagon socket 13 is provided at the front end of the rotating shaft 12, so that an hexagon socket wrench can be used conveniently for operation, thereby avoiding the inconvenience and damage risk that may be caused by using other tools.

[0036] Working principle: When using, when replacing the resin grinding wheel 1, insert the hexagonal wrench into the storage groove 16, so that the hexagonal wrench is docked with the hexagonal groove 13, so that the rotating shaft 12 can be rotated, and the rotating shaft 12 will drive the threaded rod 9 to rotate synchronously, and the threaded rod 9 will drive the cross limit block 10 to rotate synchronously. Since the cross limit block 10 and the guide rod 11 are slidably matched, the cross limit block 10 will be axially limited, and the rotation of the cross limit block 10 will be converted into horizontal linear movement, so that the cross limit block 10 with the card block 14 moves out of the card slot 15 at the front end of the resin grinding wheel 1. At this time, you only need to slide the resin grinding wheel 1 to make it fall off from the fixed block 17, and then rotate the fixed block 17 through the threaded groove to separate the fixed block 17 from the connecting shaft 2, so that the resin grinding wheel 1 can be released. The limiter behind the grease grinding wheel 1 can quickly take out the resin grinding wheel 1 for replacement. When the resin grinding wheel 1 is in use, its rotation will generate centrifugal force, and the centrifugal force will cause the baffle plate 7 to slide from the heat dissipation hole 3 into the interior of the reset cavity 5, so that the front and rear ends of the heat dissipation hole 3 can be opened, and the heat can be conducted to the heat dissipation hole 3 through the heat conduction effect of the thermally conductive graphite strip 4. Since the front and rear ends of the heat dissipation hole 3 are both open, the flow of air can be facilitated to achieve a good heat dissipation effect and avoid the resin grinding wheel 1 from bursting due to excessive temperature. When the resin grinding wheel 1 is not in use, under the elastic recovery action of the reset spring 6, the baffle plate 7 will slide back into the interior of the heat dissipation hole 3, so that the heat dissipation hole 3 can be blocked to prevent dust from entering the heat dissipation hole 3 and affecting the heat dissipation effect.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A crack-proof and explosion-proof resin grinding wheel, comprising a resin grinding wheel (1) and a connecting shaft (2), wherein the connecting shaft (2) passes through the resin grinding wheel (1), and the connecting shaft (2) and the resin grinding wheel (1) are slidably matched, and a fixing block (17) is threadedly connected to the rear side of the outer wall of the connecting shaft (2), characterized in that: It also comprises a heat dissipation hole (3) which is arranged inside the resin grinding wheel (1), and four heat dissipation holes (3) are arranged in an annular shape and are evenly spaced, a reset cavity (5) is arranged outside the heat dissipation hole (3), and the reset cavity (5) is communicated with the heat dissipation hole (3), and a shielding plate (7) is arranged inside the reset cavity (5), one end of the shielding plate (7) extends to the inside of the heat dissipation hole (3), and the shielding plate (7) is slidably matched with the heat dissipation hole (3); It also includes a transmission cavity (8) which is opened on the front side of the connecting shaft (2); a threaded rod (9) is rotatably arranged inside the transmission cavity (8); a cross limit block (10) is threadedly connected to the outside of the threaded rod (9); four ends of the cross limit block (10) extend to the outside of the transmission cavity (8), and the cross limit block (10) is slidably matched with the transmission cavity (8).

2. The anti-cracking and anti-explosion resin grinding wheel according to claim 1, characterized in that: One end of the shielding plate (7) located inside the reset chamber (5) is connected to the reset chamber (5) via two reset springs (6).

3. The anti-cracking and anti-explosion resin grinding wheel according to claim 1, characterized in that: Two groups of heat-conducting graphite strips (4) are arranged on both sides of the heat dissipation hole (3), and each group of heat-conducting graphite strips (4) has two strips.

4. The anti-cracking and anti-explosion resin grinding wheel according to claim 1, characterized in that: Guide rods (11) are welded to the upper and lower ends of the transmission cavity (8), and the guide rods (11) all penetrate the cross limit blocks (10), and the guide rods (11) all slide in cooperation with the cross limit blocks (10).

5. The anti-cracking and anti-explosion resin grinding wheel according to claim 1, characterized in that: A clamping block (14) is welded to the rear side of one end of the cross limit block (10) located outside the transmission cavity (8) and the front end of the fixed block (17), and the clamping blocks (14) at the front end of the fixed block (17) are provided with four clamping grooves (15) distributed in an annular shape and at equal intervals, and the front and rear ends of the resin grinding wheel (1) are provided with four clamping grooves (15) distributed in an annular shape and at equal intervals, and the clamping grooves (15) are all matched with the clamping blocks (14).

6. The anti-cracking and anti-explosion resin grinding wheel according to claim 1, characterized in that: The front end of the transmission cavity (8) is provided with a receiving groove (16), the front end of the threaded rod (9) is welded with a rotating shaft (12), one end of the rotating shaft (12) extends into the interior of the receiving groove (16), and the rotating shaft (12) and the receiving groove (16) are rotatably matched.

7. The anti-cracking and anti-explosion resin grinding wheel according to claim 6, characterized in that: The front end of the rotating shaft (12) is provided with a hexagonal inner groove (13).

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