CN214557647U

CN214557647U - Guide sleeve assembly

Info

Publication number: CN214557647U
Application number: CN202120824437.2U
Authority: CN
Inventors: 张华林; 张友林
Original assignee: Dongguan Shuangli Cutting Tool Co ltd
Current assignee: Dongguan Shuangli Cutting Tool Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-02
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to a guide sleeve component, which comprises a guide sleeve, a first flange and a second flange, wherein the guide sleeve comprises a first through hole with larger inner diameter and a second through hole with smaller inner diameter; the expansion sleeve consists of an inner conical ring and an outer conical ring; the gland is provided with a second flange and a locking through hole, the locking blind hole and the locking through hole are combined to form a complete locking hole, the gland body is provided with a third through hole which is matched with the inner diameter of the second through hole and is coaxial with the second through hole, the gland body is provided with a ring pressing portion protruding towards the first through hole along the third through hole, and when the gland is assembled with the guide sleeve, the ring pressing portion is embedded in the first through hole and pushes the expansion sleeve in the first through hole. The guide sleeve assembly formed by combining the guide sleeve, the expansion sleeve and the gland is used as an auxiliary assembly part for assembling the drilling gun, the structure is relatively simple, and the reliability is higher compared with that of a single guide sleeve assembling structure.

Description

Guide sleeve assembly

Technical Field

The utility model relates to a guide pin bushing technical field especially relates to a guide pin bushing subassembly.

Background

At present, when a numerical control drilling machine tool drills, a guide sleeve is required to be used for guiding a drill gun to drill, meanwhile, the guide sleeve needs to tightly push a workpiece plane to seal oil, cutting fluid is prevented from splashing, the drilling precision and quality are guaranteed, the guide sleeve made of soft plastic materials is generally used on the existing numerical control drilling machine tool, and the guide sleeve made of the soft plastic materials has certain elasticity, so that the effect of well guiding the drill gun can be achieved, and the oil can be tightly sealed on the workpiece plane in the drilling process. But there are more defects in the guide pin bushing that uses software plastic material: if the abrasion is large, the steel wire is easy to scrap, and the guiding and positioning effects are not accurate. And current guide pin bushing is straight section of thick bamboo cylinder structure generally, and the effect in the aspect of the oil blanket is relatively poor.

The utility model discloses a public nation utility model patent of publication number CN206966723U among the prior art discloses a guide pin bushing structure of numerical control drilling machine tool brill rifle, including tungsten steel guide pin bushing body, tungsten steel guide pin bushing body is provided with along its axial with brill rifle matched with through-hole, and tungsten steel guide pin bushing body still is provided with the first body and the second body that are connected along its axial, and the external diameter of first body is greater than the external diameter of second body, the bottom surface of first body from interior to exterior is equipped with annular oil sealing plane of circle and conical surface in proper order. This prior art can reduce the attrition rate of guide pin bushing, improves the efficiency of tearing open and changing of guide pin bushing, guarantees the drilling precision of work piece. Although the prior art adopts a rigid guide sleeve body, in practical application, the guiding and positioning effects of a drill gun are not ideal only by using a single guide sleeve, and the guide sleeve in the prior art has a too simple structure and lower reliability; although the prior art adopts the oil sealing plane, the oil sealing effect is poor, and the problem of oil leakage cannot be actually solved.

Disclosure of Invention

The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, a guide pin bushing subassembly is provided.

The embodiment of the utility model provides a guide pin bushing subassembly, it includes: the guide sleeve comprises a guide sleeve body, a through hole is axially formed in the guide sleeve body, a first flange is annularly arranged on the outer wall of the end part of the guide sleeve body, the through hole comprises a first through hole with a larger inner diameter and a second through hole with a smaller inner diameter, and a locking blind hole is formed in the guide sleeve body; the expansion sleeve consists of an inner conical ring and an outer conical ring, the outer diameter of the expansion sleeve is matched with the inner diameter of the first through hole, the expansion sleeve is embedded in the first through hole when being assembled with the guide sleeve, and the inner diameter of the inner conical ring is matched with the inner diameter of the second through hole; the gland comprises a gland body, wherein a second flange is annularly arranged on the outer wall of the gland body, the second flange is provided with a locking through hole coaxial with the locking blind hole, the locking blind hole and the locking through hole are combined into a complete locking hole, the gland body is provided with a third through hole which is matched with and coaxial with the inner diameter of the second through hole, the gland body is provided with an annular pressing part protruding towards the first through hole along the third through hole, and when the gland is assembled with the guide sleeve, the annular pressing part is embedded in the first through hole and presses the expansion sleeve in the first through hole.

In some of these embodiments, the outer end edges of the first and second through holes are each provided with a chamfer.

In some embodiments, the plurality of locking holes are uniformly distributed along the second flange.

In some of these embodiments, the thickness of the first flange is 1/10 the axial length of the guide sleeve body.

In some of these embodiments, the second through hole has an inner diameter less than 1/2 of the outer diameter of the guide sleeve body.

In some embodiments, the sum of the length L of the ring pressing portion capable of being embedded into the first through hole and the thickness I of the expansion sleeve is greater than the depth of the first through hole.

In some of these embodiments, the length L is 2.5mm, the thickness I is 6.3mm, and the depth of the first through-hole is 8 mm.

In some embodiments, the depth of the locking blind hole is greater than the depth of the first through hole.

In some of these embodiments, the second flange has an outer diameter that is less than the outer diameter of the first flange.

In some embodiments, the outer edge of the first flange forms a first step, and the second flange and the first step form a second step.

Compared with the prior art, the embodiment of the utility model provides a guide pin bushing subassembly, it includes: the guide sleeve comprises a guide sleeve body, a through hole is axially formed in the guide sleeve body, a first flange is annularly arranged on the outer wall of the end part of the guide sleeve body, the through hole comprises a first through hole with a larger inner diameter and a second through hole with a smaller inner diameter, and a locking blind hole is formed in the guide sleeve body; the expansion sleeve consists of an inner conical ring and an outer conical ring, the outer diameter of the expansion sleeve is matched with the inner diameter of the first through hole, the expansion sleeve is embedded in the first through hole when being assembled with the guide sleeve, and the inner diameter of the inner conical ring is matched with the inner diameter of the second through hole; the gland comprises a gland body, wherein a second flange is annularly arranged on the outer wall of the gland body, the second flange is provided with a locking through hole coaxial with the locking blind hole, the locking blind hole and the locking through hole are combined into a complete locking hole, the gland body is provided with a third through hole which is matched with and coaxial with the inner diameter of the second through hole, the gland body is provided with an annular pressing part protruding towards the first through hole along the third through hole, and when the gland is assembled with the guide sleeve, the annular pressing part is embedded in the first through hole and presses the expansion sleeve in the first through hole. The guide sleeve assembly formed by combining the guide sleeve, the expansion sleeve and the gland is used as an auxiliary assembly part for assembling the drilling gun, the structure is relatively simple, and the reliability is higher compared with that of a single guide sleeve assembling structure.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below to provide a more concise and understandable description of other features, objects, and advantages of the invention.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is an exploded structural view of a guide sleeve assembly according to an embodiment of the present invention.

Fig. 2 is an assembly structure view of the guide sleeve assembly according to the embodiment of the present invention.

In the figure, 1, guide sleeve; 2. expanding and tightening the sleeve; 3. a gland; 11. a guide sleeve body; 12. a first flange; 13. a first through hole; 14. a second through hole; 15. locking the blind holes; 16. chamfering; 17. a first step; 21. an inner conical ring; 22. an outer cone ring; 31. a gland body; 32. a second flange; 33. locking the through hole; 34. a third through hole; 35. a ring pressing part; 36. a second step.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described and illustrated with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. Moreover, it will be appreciated that in the development of any such actual embodiment, as in any specific implementation, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as is commonly understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are not to be construed as limiting the number, but may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description may not be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The utility model relates to a "a plurality of" means more than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in the description of the invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1-2, a guide sleeve assembly comprises a guide sleeve 1, an expansion sleeve 2 and a gland 3, wherein the guide sleeve 1 and the gland 3 are tightly combined through the expansion sleeve 2.

The utility model discloses a guide pin bushing 1 in embodiment, including guide pin bushing 1 body, guide pin bushing 1 body is opened along the axial has the through-hole, and the tip outer wall ring of guide pin bushing 1 body is equipped with first flange 12, and the through-hole includes the great first through-hole 13 of internal diameter and the less second through-hole 14 of internal diameter, and the intersection of first through-hole 13 and second through-hole 14 forms the step, has evenly laid lock solid blind hole 15 along the annular on the terminal surface of guide pin bushing 1 body. The first flange 12 is used for assembling the guide sleeve 1 assembly into a machine tool, the step is formed to provide assembly support for the expansion sleeve 2, the aperture difference between the first through hole 13 and the second through hole 14 is the annular arc interval of the expansion sleeve 2, so that the inner hole of the expansion sleeve 2, the first through hole 13 and the second through hole 14 of the guide sleeve 1 and the third through hole 34 of the gland 3 form a through guide hole, and the whole structure is more compact.

The utility model discloses an embodiment expand tight cover 2 as the accepting piece between guide pin bushing 1 and the gland 3 for guide pin bushing 1 is compacter and the reliability is stronger with gland 3's assembly structure. Specifically, the expansion sleeve 2 is composed of an inner conical ring 21 and an outer conical ring 22, the outer diameter of the expansion sleeve 2 is matched with the inner diameter of the first through hole 13, the expansion sleeve is embedded in the first through hole 13 when being assembled with the guide sleeve 1, and the inner diameter of the inner conical ring 21 is matched with the inner diameter of the second through hole 14. The shape and structure of the inner conical ring 21 and the outer conical ring 22 are the prior art, the specific model is the Z1 type expansion sleeve 2, and detailed description is omitted.

The utility model discloses a gland 3 in the embodiment, including gland 3 body, the outer wall ring of this gland 3 body is equipped with second flange 32, and second flange 32 has the lock solid through-hole 33 with the coaxial configuration of lock solid blind hole 15, and lock solid blind hole 15 and the combination of lock solid through-hole 33 are complete lock solid hole. The aperture of the locking through hole 33 is larger than that of the locking blind hole 15, and the locking through hole 33 is divided into a first locking through hole with a larger aperture and a second locking through hole with a smaller aperture, the second locking through hole is used for accommodating a nut of a screw, and the locking blind hole 15 is used for accommodating a screw rod of the screw. The gland 3 body has the third through-hole 34 that matches and coaxial with the internal diameter of second through-hole 14, and the gland 3 body has along the protruding ring splenium 35 of third through-hole 34 towards first through-hole 13, and when gland 3 and guide pin bushing 1 assembled, this ring splenium 35 inlays the dress and carries out the roof pressure to the tight cover 2 that expands that is located first through-hole 13 in the first through-hole 13, strengthens gland 3 and guide pin bushing 1's compactness.

The utility model discloses an in the embodiment, the outer end edge of first through-hole 13 and second through-hole 14 all is equipped with chamfer 16, and chamfer 16 is the annular form, can be convenient for the direction of accessory insert the assembly, improves the convenience of accessory assembly and reduces the assembly degree of difficulty.

The utility model discloses an in the embodiment, three locking hole is evenly laid along second flange 32, and the locking hole is the internal thread hole, and the screw can be downthehole guide pin bushing 1 and the gland 3 lock solid through screwing up at this lock solid, and the setting in three locking hole can help the lock solid position evenly distributed with gland 3 and guide pin bushing 1, and lets the assembly of inserting in gland 3 and guide pin bushing 1 not take place the skew, avoids influencing the assembly effect to boring the rifle, improves the reliability of assembly.

The utility model discloses an in the embodiment, 1/10 of the thickness of first flange 12 for the axial length of guide pin bushing 1 body, the thickness design of flange need match with the axial length of guide pin bushing 1 body to be certain proportion, guarantee the flange and in the in-process of assembly, have sufficient reliability and compromise holistic weight and cost simultaneously. In the embodiment, the flange is not provided with a hole, so that the flange is used as a supporting position of the second flange 32 of the gland 3, and the assembly reliability of the first flange 12 and the second flange 32 on a machine tool after combination is improved.

The embodiment of the utility model provides an in, the internal diameter of second through-hole 14 is less than 1/2 of the external diameter of guide pin bushing 1 body, guide pin bushing 1 just needs to have sufficient assembly strength now as the assembly part of brill rifle, so the proportion that accounts for of the second through-hole 14 of guide pin bushing 1 is bigger, the intensity of guide pin bushing 1 will be less, 1/2 that the internal diameter of second through-hole 14 is less than the external diameter of guide pin bushing 1 body is a reference condition, otherwise intensity is not enough, the assembly effect does not reach the position, influence the direction effect of guide pin bushing 1 subassembly.

The utility model discloses an in the embodiment, the total sum of the length L that the ring splenium 35 can be inlayed in first through-hole 13 and the thickness I of tight cover 2 that expands is greater than the degree of depth of first through-hole 13. In the specific embodiment, the length L is 2.5mm, the thickness I is 6.3mm, and the depth of the first through hole 13 is 8 mm. In order to strengthen the assembly compactness between the guide sleeve 1 and the gland 3, the size specification can ensure that the gland 3 keeps the compressing effect on the expansion sleeve 2, and the reaction force generated by the expansion sleeve 2 can also act between the gland 3 and the guide sleeve 1, so that the whole assembly effect is better and reliable, and the oil sealing effect can be achieved to a certain extent.

In the embodiment of the present invention, the depth of the locking blind hole 15 is greater than the depth of the first through hole 13. In the embodiment, the blind locking hole 15 is located outside the first through hole 13, so the blind locking hole 15 and the first through hole 13 are coaxial holes, and in order to enhance the reliability of the locking hole, the depth of the blind locking hole 15 is increased to be greater than that of the first through hole 13, so that the wall thickness of the position exceeding the depth of the first through hole 13 is larger, at the moment, the locking hole and the second through hole 14 are coaxial, and the inner diameter of the second through hole 14 is smaller than that of the first through hole 13, so the coaxial wall thickness of the locking hole and the second through hole 14 is larger than that of the locking hole and the first through hole 13, and the strength is also larger, thereby improving the reliability of locking.

In the embodiment of the present invention, the outer diameter of the second flange 32 is smaller than the outer diameter of the first flange 12, and the outer edge of the first flange 12 forms the first step 17, and the second flange 32 and the first step 17 form the second step 36. After the guide sleeve 1 assembly is assembled, the guide sleeve 1 assembly needs to be assembled in a machine tool, and in order to avoid oil leakage of an assembly gap during assembly, the second step 36 is configured outside the first flange 12 and the second flange 32, and the third step is used as an assembly joint and has an oil sealing effect to a certain extent.

Compared with the prior art, the embodiment of the utility model provides a guide pin bushing subassembly, it includes: the guide sleeve 1 comprises a guide sleeve 1 body, the guide sleeve 1 body is provided with a through hole along the axial direction, the outer wall of the end part of the guide sleeve 1 body is annularly provided with a first flange 12, the through hole comprises a first through hole 13 with a larger inner diameter and a second through hole 14 with a smaller inner diameter, and the guide sleeve 1 body is provided with a locking blind hole 15; the expansion sleeve 2 consists of an inner conical ring 21 and an outer conical ring 22, the outer diameter of the expansion sleeve 2 is matched with the inner diameter of the first through hole 13, the expansion sleeve is embedded in the first through hole 13 when being assembled with the guide sleeve 1, and the inner diameter of the inner conical ring 21 is matched with the inner diameter of the second through hole 14; the gland 3 comprises a gland 3 body, a second flange 32 is annularly arranged on the outer wall of the gland 3 body, the second flange 32 is provided with a locking through hole 33 coaxial with the locking blind hole 15, the locking blind hole 15 and the locking through hole 33 are combined into a complete locking hole, the gland 3 body is provided with a third through hole 34 matched with and coaxial with the inner diameter of the second through hole 14, the gland 3 body is provided with an annular pressing part 35 protruding towards the first through hole 13 along the third through hole 34, and when the gland 3 is assembled with the guide sleeve 1, the annular pressing part 35 is embedded in the first through hole 13 and presses the expansion sleeve 2 in the first through hole 13. The guide sleeve 1 assembly formed by the combination of the guide sleeve 1, the expansion sleeve 2 and the gland 3 is used as an assembly auxiliary accessory of the drill gun, and has relatively simple structure and higher reliability compared with the assembly structure of a single guide sleeve 1.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A guide sleeve assembly, comprising:

the guide sleeve (1) comprises a guide sleeve (1) body, a through hole is formed in the guide sleeve (1) body along the axial direction, a first flange (12) is arranged on the outer wall of the end part of the guide sleeve (1) body in a surrounding mode, the through hole comprises a first through hole (13) with a larger inner diameter and a second through hole (14) with a smaller inner diameter, and a locking blind hole (15) is formed in the guide sleeve (1) body;

the expansion sleeve (2) consists of an inner conical ring (21) and an outer conical ring (22), the outer diameter of the expansion sleeve (2) is matched with the inner diameter of the first through hole (13), the expansion sleeve is embedded in the first through hole (13) when being assembled with the guide sleeve (1), and the inner diameter of the inner conical ring (21) is matched with the inner diameter of the second through hole (14);

the gland (3) comprises a gland (3) body, a second flange (32) is arranged on the outer wall of the gland (3) body in a surrounding mode, the second flange (32) is provided with a locking through hole (33) coaxial with the locking blind hole (15), the locking blind hole (15) and the locking through hole (33) are combined into a complete locking hole, the gland (3) body is provided with a third through hole (34) matched with and coaxial with the inner diameter of the second through hole (14), the gland (3) body is provided with a ring pressing portion (35) protruding towards the first through hole (13) along the third through hole (34), and when the gland (3) is assembled with the guide sleeve (1), the ring pressing portion (35) is embedded in the first through hole (13) and presses the expansion sleeve (2) located in the first through hole (13).

2. A guide sleeve assembly according to claim 1, characterized in that the outer end edges of the first through hole (13) and the second through hole (14) are provided with chamfers (16).

3. A guide sleeve assembly according to claim 1, wherein a plurality of said locking holes are uniformly arranged along said second flange (32).

4. A guide sleeve assembly according to claim 1, characterized in that the thickness of the first flange (12) is 1/10 of the axial length of the guide sleeve (1) body.

5. A guide sleeve assembly according to claim 1, characterized in that the inner diameter of the second through hole (14) is smaller than 1/2 of the outer diameter of the guide sleeve (1) body.

6. A guide sleeve assembly according to claim 1, characterized in that the sum of the length L of the ring press (35) that can be inserted into the first through hole (13) and the thickness I of the expansion sleeve (2) is greater than the depth of the first through hole (13).

7. A guide sleeve assembly according to claim 6, characterized in that said length L is 2.5mm, said thickness I is 6.3mm and the depth of said first through hole (13) is 8 mm.

8. Guide sleeve assembly according to claim 1, characterized in that the depth of the blind locking hole (15) is greater than the depth of the first through hole (13).

9. A guide sleeve assembly according to claim 1, characterized in that the outer diameter of said second flange (32) is smaller than the outer diameter of said first flange (12).

10. A guide sleeve assembly according to claim 9, characterized in that the outer edge of the first flange (12) forms a first step (17), and the second flange (32) and the first step (17) form a second step (36).