CN219255225U

CN219255225U - Water drill clamp

Info

Publication number: CN219255225U
Application number: CN202223153386.9U
Authority: CN
Inventors: 陈海峰
Original assignee: Hubei Mingyu Crystal Jewelry Co ltd
Current assignee: Hubei Mingyu Crystal Jewelry Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-06-27
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a water drill clamp, and belongs to the technical field of water drill processing. The fixture comprises a fixture body, a plurality of fixture needles, a worm, a sealing sleeve and a rectangular connecting block, wherein the sealing sleeve comprises a bearing sleeve, a waterproof sealing ring and a copper sleeve, a thrust ball bearing and an oil seal which are sequentially arranged in the bearing sleeve from inside to outside, and the bearing sleeve, the copper sleeve, the thrust ball bearing and the oil seal are coaxial with the worm; the inner side of the rectangular connecting block is provided with a convex ring which is coaxially arranged with the worm and sleeved on the worm; the inner hole of the bearing sleeve is a stepped hole with small inside and large outside, the copper sleeve and the thrust ball bearing are positioned in a small hole of the stepped hole, the oil seal is positioned in a large hole of the stepped hole, and the outer end face of the oil seal is level with the outer side of the bearing sleeve; the outer end face of the thrust ball bearing is level with the step face of the step hole, and the inner side of the rectangular connecting block is propped against the outer end face of the oil seal; the inner end surface of the oil seal is simultaneously propped against the outer end surface and the step surface of the thrust ball bearing, the outer wall of the oil seal is tightly matched with the large hole, and the inner wall of the oil seal is in clearance fit with the outer wall of the convex ring.

Description

Water drill clamp

Technical Field

The utility model belongs to the technical field of water drill processing, and particularly relates to a water drill clamp.

Background

Water drills are a very important accessory for ornaments and apparel, which are usually processed by polishing machines. The water drill can use a water drill clamp during polishing; the rhinestone clamp is used for fixing blanks such as a rhinestone and the like, and the mirror surface of the rhinestone is converted through the action of the clamp.

The patent of application number CN201520011574.9 discloses a precious stone anchor clamps leak protection oil structure, includes: the worm is arranged in the row body, the bearing seat is connected with the end face of the row body, the bearing is arranged in the bearing seat, the fixing nut is connected with the tail part of the worm through threads, and the worm further comprises a sealing cover which is connected with the bearing seat through threads; an external thread is arranged on the outer side of the sealing cover; an inner hole of the bearing seat is provided with an inner thread which is matched with an outer thread of the sealing cover; an oil storage cavity is arranged in the sealing cover, and a fixing nut and lubricating oil are contained in the oil storage cavity.

The utility model discloses a water bores, hollow bores, zircon drill fixture as the patent of application number CN201320427350.7, the structure of anchor clamps includes the anchor clamps body, the screw rod, the end cover, plane bearing, the nut, the seal cover, the end cover is fixed at anchor clamps body both ends, and the end cover is the indent structure, and the end cover center design has the hole, and the screw rod passes end cover and anchor clamps body, has cup jointed plane bearing on the screw rod both ends, and plane bearing cup joints in the seal cover, and plane bearing and seal cover inlay in the concave groove of end cover, and the outer end of screw rod one end is fixed with the nut.

It can be seen from the foregoing that a seal is required between the worm (or screw) and the end of the clamp body to prevent oil leakage and water ingress. Sealing structures vary from company to company. As shown in fig. 1, the conventional water drill fixture comprises a fixture body 1, a plurality of fixture needles 2 which are arranged side by side at the lower side of the fixture body 1 and can move up and down, a dovetail groove at the upper part of the fixture body 1, a worm 3 which penetrates through the fixture body 1 and is used for driving the fixture needles 2 to move up and down, a sealing sleeve 4 between the driving end of the worm 3 and the corresponding end of the fixture body 1, an oil leakage preventing sleeve between the other end of the worm 3 and the corresponding end of the fixture body 1, a rectangular connecting block 5 fixed on the driving end of the worm 3, and the like. The worm 3 is a polish rod at the sealing sleeve 4 and the oil leakage preventing sleeve. The sealing sleeve 4 comprises a bearing sleeve 6, a waterproof sealing ring 7 on the inner end surface of the bearing sleeve 6, an inner sealing ring 16, a copper sleeve 8 and a thrust ball bearing 9 which are sequentially arranged in the bearing sleeve 6 from inside to outside; the bearing sleeve 6 is open at the outer side and is provided with a through hole for the worm 3 to pass through at the inner side. The bearing sleeve 6, the inner sealing ring 16, the copper sleeve 8 and the thrust ball bearing 9 are coaxial with the worm 3, and a circular groove for embedding the bearing sleeve 6 is formed in the end part of the clamp body 1.

In the prior art, grease in the clamp body moves from the bearing housing toward the oil leakage prevention housing. The sealing sleeve is mainly used for preventing water from entering the clamp body; the oil leakage preventing sleeve is mainly used for preventing oil from leaking out. However, in actual use, grease is also used at the thrust ball bearing to promote lubrication and sealing effects. After oil exudation at the thrust ball bearing, two adverse consequences can result: firstly, the service life is influenced, and the thrust ball bearing needs to be replaced in about 30 days; secondly, influence the waterproof effect, water passes through the thrust ball bearing easily and gets into in the anchor clamps body.

Disclosure of Invention

In order to solve the problems, the embodiment of the utility model provides a water drill clamp, which adjusts the structure of a bearing sleeve, and an oil seal and a convex ring are arranged outside a thrust ball bearing, so that the possibility of grease seepage is reduced, and the service life of the bearing is further prolonged; under the condition that grease does not ooze, the sealing effect is good, an inner sealing ring can be omitted, and the structure of the bearing sleeve is not particularly complicated as a whole. The technical scheme is as follows:

the embodiment of the utility model provides a water drill clamp, which comprises a clamp body 1, a plurality of clamp needles 2 which are arranged side by side on the lower side of the clamp body 1 and can rotate, a worm 3 which penetrates through the clamp body 1 and is used for driving the clamp needles 2 to move up and down, a sealing sleeve 4 between the driving end of the worm 3 and the corresponding end of the clamp body 1, and a rectangular connecting block 5 which is fixed on the driving end of the worm 3, wherein the sealing sleeve 4 comprises a bearing sleeve 6, a waterproof sealing ring 7 on the inner end surface of the bearing sleeve 6, a copper sleeve 8, a thrust ball bearing 9 and an oil seal 10 which are sequentially arranged from inside to outside in the bearing sleeve 6, the outer side of the bearing sleeve 6 is opened, the bearing sleeve 6, the copper sleeve 8 and the thrust ball bearing 9 are coaxial with the worm 3, and a circular groove for embedding the bearing sleeve 6 is formed at the end part of the clamp body 1; the inner side of the rectangular connecting block 5 is provided with a convex ring 11, and the convex ring 11 and the worm 3 are coaxially arranged and sleeved on the worm 3; the inner hole of the bearing sleeve 6 is a stepped hole with small inner part and large outer part, the copper sleeve 8 and the thrust ball bearing 9 are positioned in the small hole of the stepped hole, the oil seal 10 is positioned in the large hole of the stepped hole, and the outer end face of the oil seal is level with the outer side of the bearing sleeve 6; the outer end face of the thrust ball bearing 9 is flush with the step face 12 of the step hole, and the inner side of the rectangular connecting block 5 is propped against the outer end face of the oil seal 10; the inner end surface of the oil seal 10 is simultaneously propped against the outer end surface and the step surface 12 of the thrust ball bearing 9, the outer wall of the oil seal is tightly matched with the large hole, and the inner wall of the oil seal is in clearance fit with the outer wall of the convex ring 11.

Preferably, the convex ring 11 in the embodiment of the utility model is sleeved with the wear-resistant ring 13; the wear-resistant ring 13 is coaxially arranged with the convex ring 11, the outer end face of the wear-resistant ring is flush with the outer end face of the oil seal 10, the inner end face of the wear-resistant ring is propped against the outer end face of the thrust ball bearing 9, and the outer wall of the wear-resistant ring is in clearance fit with the inner wall of the oil seal 10.

Specifically, the inner diameter of the wear-resistant ring 13 in the embodiment of the utility model is larger than the inner diameter of the thrust ball bearing 9, and the outer diameter thereof is smaller than the outer diameter of the thrust ball bearing 9; the inner diameter of the oil seal 10 is smaller than the outer diameter of the thrust ball bearing 9, and the outer diameter of the oil seal is larger than the outer diameter of the thrust ball bearing 9.

Further, the outer diameter of the outer end of the bearing sleeve 6 at the large hole in the embodiment of the utility model is enlarged to form a convex ring part 14, and the convex ring part 14 is positioned outside the clamp body 1.

Further, the inner side of the convex ring part 14 in the embodiment of the present utility model is a conical surface; the conical surface and the bearing sleeve 6 are coaxially arranged, and are propped against the outer side of the clamp body 1, and the diameter of the conical surface is gradually increased from inside to outside.

Wherein, the inner end surface of the bearing sleeve 6 in the embodiment of the utility model is coaxially provided with a through hole for the worm 3 to pass through, and the through hole is coaxially provided with a sealing groove 15 matched with the waterproof sealing ring 7; the sealing groove 15 is arranged around the worm 3, and the waterproof sealing ring 7 is embedded in the sealing groove 15.

Preferably, the rectangular connecting block 5 in the embodiment of the present utility model is in threaded connection with the driving end of the worm 3 and is locked by a locking bolt, and the direction of the threads is the same as the rotation direction of the worm 3.

The technical scheme provided by the embodiment of the utility model has the beneficial effects that: the embodiment of the utility model provides a water drill clamp, which adjusts the structure of a bearing sleeve, and an oil seal and a convex ring are arranged outside a thrust ball bearing, so that the possibility of grease exudation is reduced, and the service life of the bearing is prolonged (the thrust ball bearing is usually replaced about 90 days); under the condition that grease does not ooze, the sealing effect is good, an inner sealing ring can be omitted, and the structure of the bearing sleeve is not particularly complicated as a whole.

Drawings

Figure 1 is a schematic structural view of a prior art gland;

FIG. 2 is a schematic structural view of a water drill jig;

figure 3 is a schematic structural view of a gland in an embodiment of the present utility model;

fig. 4 is a schematic structural view of a rectangular connection block.

In the figure: the novel high-pressure oil-proof sealing device comprises a fixture body 1, a fixture needle 2, a worm 3, a sealing sleeve 4, a rectangular connecting block 5, a bearing sleeve 6, a waterproof sealing ring 7, a copper sleeve 8, a thrust ball bearing 9, an oil seal 10, a convex ring 11, a stepped surface 12, a wear-resistant ring 13, a convex ring part 14, a sealing groove 15 and an inner sealing ring 16.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

Referring to fig. 2 to 4, an embodiment of the present utility model provides a water drill jig, which includes a jig body 1 disposed in a front-rear direction, a plurality of jig pins 2 disposed at a lower side of the jig body 1, a dovetail groove formed at an upper portion of the jig body 1, a worm 3 penetrating the jig body 1 in the front-rear direction, a sealing sleeve 4 between a front end of the jig body 1 and a driving end (front end) of the worm 3, an oil leakage preventing sleeve between a rear end of the jig body 1 and the other end of the worm 3, a rectangular connection block 5 disposed at a front end of the worm 3 and at a front side of the sealing sleeve 4, and the like. The clamp body 1 is of a hollow structure, and butter is filled in the clamp body. The plurality of jig pins 2 are arranged side by side in front of and behind each other and are driven to rotate by a worm 3. The rectangular connecting block 5 is fixedly connected with the front end of the worm 3. The sealing sleeve 4 comprises a bearing sleeve 6, a waterproof sealing ring 7 on the inner end surface of the bearing sleeve 6, and a copper sleeve 8, a thrust ball bearing 9 and an oil seal 10 which are sequentially arranged in the bearing sleeve 6 from inside to outside. The bearing sleeve 6 is of a cylindrical structure, the inner side of the bearing sleeve is closed, a through hole for the worm 3 to pass through is formed in the bearing sleeve, and the outer side of the bearing sleeve is open. The bearing sleeve 6, the copper sleeve 8, the thrust ball bearing 9 and the oil seal 10 are coaxial with the worm 3, and a circular groove for embedding the bearing sleeve 6 is formed in the end part of the clamp body 1. The bearing housing 6 is inserted into the circular groove to fix the bearing housing 6 to the jig body 1. The inner side of the rectangular connecting block 5 is provided with a convex ring 11; the convex ring 11 is coaxially arranged with the worm 3, is sleeved on the worm 3, has the same inner diameter as the threaded hole on the rectangular connecting block 5, and has the inner end positioned at the adjacent outer side of the thrust ball bearing 9. The inner hole of the bearing sleeve 6 is a stepped hole with small inner part and large outer part; the copper sleeve 8 and the thrust ball bearing 9 are positioned in the small holes of the stepped holes, which is consistent with the prior art. The oil seal 10 is located in the large hole of the stepped hole and its outer end face is flush with the outer side of the bearing housing 6. The outer end face of the thrust ball bearing 9 is flush with the step face 12 of the step hole, and the inner side of the rectangular connecting block 5 is propped against the outer end face of the oil seal 10. The inner end surface of the oil seal 10 is simultaneously propped against the outer end surface of the thrust ball bearing 9 and the stepped surface 12 to seal the gap between the thrust ball bearing 9 and the bearing sleeve 6, the outer wall of the oil seal is tightly matched with the large hole, and the inner wall of the oil seal is in clearance fit with the outer wall of the convex ring 11. The convex ring 11 can make the oil seal 10 more stable in use.

Preferably, referring to fig. 3, the convex ring 11 in the embodiment of the present utility model is sleeved with a wear-resistant ring 13; the surface of the wear ring 13 is smooth and is made of a wear-resistant material, such as a conventional wear-resistant alloy. The wear-resistant ring 13 is coaxially arranged with the convex ring 11, the outer end face of the wear-resistant ring is flush with the outer end face of the oil seal 10, the inner end face of the wear-resistant ring is propped against the outer end face of the thrust ball bearing 9, and the outer wall of the wear-resistant ring is in clearance fit with the inner wall of the oil seal 10.

Specifically, the inner diameter of the wear ring 13 in the embodiment of the present utility model is larger than the inner diameter of the thrust ball bearing 9, and the outer diameter thereof is smaller than the outer diameter of the thrust ball bearing 9. The oil seal 10 has an inner diameter smaller than the outer diameter of the thrust ball bearing 9 and an outer diameter larger than the outer diameter of the thrust ball bearing 9.

Further, referring to fig. 3, the outer diameter of the bearing housing 6 at the large hole at the outer end of the bearing housing in the embodiment of the present utility model becomes large to form a convex ring portion 14. The collar portion 14 is arranged coaxially with the bearing housing 6, outside the clamp body 1, with its inner side abutting against the front side of the clamp body 1. Further, the inner side of the convex ring portion 14 is a tapered surface. The conical surface and the bearing sleeve 6 are coaxially arranged, and are propped against the outer side of the clamp body 1, and the diameter of the conical surface and the bearing sleeve gradually increases from inside to outside. The length of the convex ring portion 14 is matched with the thickness of the oil seal 10, and the specific length is 3-5mm.

Wherein, a through hole (which is arranged along the front and back directions and is in clearance fit with the worm 3) for the worm 3 to pass through is coaxially arranged on the inner end surface of the bearing sleeve 6 in the embodiment of the utility model, and a sealing groove 15 which is matched with the waterproof sealing ring 7 is coaxially arranged on the through hole. The sealing groove 15 is arranged around the worm 3, and the waterproof sealing ring 7 is embedded in the sealing groove 15.

Preferably, in the embodiment of the utility model, the rectangular connecting block 5 is in threaded connection with the driving end of the worm 3 and is locked by a locking bolt, a threaded hole is formed in the rectangular connecting block 5, and the direction of the threads of the worm 3 is the same as the rotation direction of the worm 3 so that the rectangular connecting block 5 always presses the sealing sleeve 4. The number of the locking bolts is two, and the two locking bolts are arranged in parallel front and back and are perpendicular to the worm 3.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a water bores anchor clamps, includes anchor clamps body (1), anchor clamps body (1) downside sets up side by side and many anchor clamps needle (2) that can rotate, runs through anchor clamps body (1) and be used for driving worm (3) of anchor clamps needle (2) up-and-down motion, fixed rectangle connecting block (5) on seal cover (4) and the driving end of worm (3) between the driving end of worm (3) and the corresponding end of anchor clamps body (1), seal cover (4) include copper bush (8) and thrust ball bearing (9) that water-proof seal (7) and bearing bush (6) on terminal surface set gradually from inside to outside in bearing bush (6), the outside of bearing bush (6) is uncovered, bearing bush (6), copper bush (8) and thrust ball bearing (9) all are coaxial with worm (3), the tip of anchor clamps body (1) is equipped with the circular slot that supplies bearing bush (6) to imbed; the novel thrust ball bearing is characterized in that the sealing sleeve (4) further comprises an oil seal (10) which is arranged in the bearing sleeve (6) and is positioned at the outer side of the thrust ball bearing (9), a convex ring (11) is arranged at the inner side of the rectangular connecting block (5), and the convex ring (11) and the worm (3) are coaxially arranged and sleeved on the worm (3); the inner hole of the bearing sleeve (6) is a stepped hole with small inner part and large outer part, the copper sleeve (8) and the thrust ball bearing (9) are positioned in a small hole of the stepped hole, and the oil seal (10) is positioned in the large hole of the stepped hole, and the outer end face of the oil seal is level with the outer side of the bearing sleeve (6); the outer end face of the thrust ball bearing (9) is flush with the step face (12) of the step hole, and the inner side of the rectangular connecting block (5) is propped against the outer end face of the oil seal (10); the inner end surface of the oil seal (10) is simultaneously propped against the outer end surface of the thrust ball bearing (9) and the stepped surface (12), the outer wall of the oil seal is tightly matched with the large hole, and the inner wall of the oil seal is in clearance fit with the outer wall of the convex ring (11).

2. The water drill clamp according to claim 1, characterized in that the collar (11) is externally sleeved with a wear ring (13); the wear-resistant ring (13) and the convex ring (11) are coaxially arranged, the outer end face of the wear-resistant ring is flush with the outer end face of the oil seal (10), the inner end face of the wear-resistant ring is propped against the outer end face of the thrust ball bearing (9), and the outer wall of the wear-resistant ring is in clearance fit with the inner wall of the oil seal (10).

3. The water drill clamp according to claim 2, characterized in that the inner diameter of the wear ring (13) is larger than the inner diameter of the thrust ball bearing (9) and the outer diameter thereof is smaller than the outer diameter of the thrust ball bearing (9); the inner diameter of the oil seal (10) is smaller than the outer diameter of the thrust ball bearing (9), and the outer diameter of the oil seal is larger than the outer diameter of the thrust ball bearing (9).

4. The water drill clamp according to claim 1, characterized in that the outer diameter of the bearing sleeve (6) at the large hole is enlarged to form a convex ring part (14), and the convex ring part (14) is positioned outside the clamp body (1).

5. The water drill clamp according to claim 4, characterized in that the inner side of the collar portion (14) is a conical surface; the conical surface and the bearing sleeve (6) are coaxially arranged, the conical surface is propped against the outer side of the clamp body (1), and the diameter of the conical surface is gradually increased from inside to outside.

6. The water drill clamp according to claim 1, characterized in that a through hole for a worm (3) to pass through is coaxially arranged on the inner end surface of the bearing sleeve (6), and a sealing groove (15) matched with the waterproof sealing ring (7) is coaxially arranged on the through hole; the sealing groove (15) is arranged around the worm (3), and the waterproof sealing ring (7) is embedded into the sealing groove (15).

7. The water drill clamp according to claim 1, characterized in that the rectangular connecting block (5) is in threaded connection with the driving end of the worm (3) and is locked by a locking bolt, the direction of the threads being the same as the rotation direction of the worm (3).