CN219275524U

CN219275524U - Floating idler connecting rod assembly

Info

Publication number: CN219275524U
Application number: CN202320244719.4U
Authority: CN
Inventors: 孙军勇; 聂和君
Original assignee: Zhengzhou Yaxin Superhard Material Co ltd
Current assignee: Zhengzhou Yaxin Superhard Material Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-30
Anticipated expiration: 2033-02-17

Abstract

The utility model relates to the technical field of precise machining of honing reamer, and discloses a floating idler pulley connecting rod assembly, which comprises a connecting body connected with the end part of an idler pulley main body through a fixed structure, and two end connecting screw rods with the bottom inserted into the connecting body; the screw rod is connected at both ends includes screw thread portion and optical axis part, and optical axis part is located the middle part or the lower part of screw rod is connected at both ends, and the outside cover of optical axis part is equipped with the spacing ring, and the outside cover of spacing ring is equipped with at least angular contact ball bearing, and angular contact ball bearing's bottom is erect at second top ring upper surface, and the terminal surface that the connection body kept away from the idler main part is provided with the limit structure that restriction angular contact ball bearing reciprocated. According to the utility model, the idler wheel main body can be axially adjusted in distance and radially adjusted in rotation by arranging the two ends to be connected with the screw rods, so that the multi-hole reaming and honing tool is effectively supported when half holes are machined, and finally, the aim of improving the machining precision of the part Kong Bianxing is achieved.

Description

Floating idler connecting rod assembly

Technical Field

The utility model relates to the technical field of precise machining of honing reamer, in particular to a floating idler pulley connecting rod assembly.

Background

Honing is to finish the finish surface by using tools such as honing knife and the like, and the finish surface is often high in precision requirement; honing is widely applied to the field and is often used in combination with other workpieces, such as a honing reamer is used for processing half holes in a multi-axis honing reamer, and the field is mostly used for processing full holes and then cutting the half holes in a line, but the precision is not high, or the honing reamer is purchased to process the half holes, so that the cost is too high, and in order to reduce the cost and improve the processing precision of the existing honing tool, a new design is provided for an idler wheel in the honing reamer.

The existing floating idler wheel device, such as Chinese patent, has the following patent numbers: ZL201220674592.1, named: a floating idler assembly, the specification of which discloses that "the floating idler assembly comprises: the two ends of the floating shaft are fixedly arranged on the back surface of the sheet medium transmission channel plate, and the middle part of the floating shaft is provided with a limit groove; the idler wheels are symmetrically arranged on the floating shaft and close to the two ends, and the idler wheels are exposed out of the surface of the sheet type medium transmission channel plate through a pair of hollowed-out parts on the sheet type medium transmission channel plate; and one end of the pressure spring is positioned in the limiting groove, the other end of the pressure spring is sleeved on a positioning column on the inner side of a limiting bridge arranged on the back surface of the sheet medium transmission channel plate, and an equilibrium elastic force is provided for the floating shaft.

Disclosure of Invention

The purpose of the utility model is that: overcomes the defects existing in the prior art, and provides a floating idler connecting rod assembly, through arranging two ends to connect with screw rods, the idler main body can be axially adjusted in distance and radially rotationally adjusted, so that a multi-hole reaming and honing tool is effectively supported when half holes are machined, and finally the aim of improving the machining precision of parts Kong Bianxing is achieved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a floating idler connecting rod assembly comprises a connecting body connected with the end part of an idler main body through a fixed structure, and two ends of which are inserted into the connecting body from the bottom and are connected with screw rods; the middle part of the connecting body is provided with a through hole, an annular second top ring is integrally arranged in the through hole, and the second top ring is sleeved outside the connecting screw rod at two ends; the screw rod is connected at both ends includes screw thread portion and optical axis part, and optical axis part is located the middle part or the lower part of screw rod is connected at both ends, and the outside cover of optical axis part is equipped with the spacing ring, and the outside cover of spacing ring is equipped with at least angular contact ball bearing, and angular contact ball bearing's bottom is erect at second top ring upper surface, and the terminal surface that the connection body kept away from the idler main part is provided with the limit structure that restriction angular contact ball bearing reciprocated.

Further, the outer diameter of the angular contact ball bearing is the same as the inner diameter of the connecting body, and the inner diameter of the angular contact ball bearing is larger than the inner diameter of the second top ring.

Further, the fixed knot constructs including integrative annular first top ring that sets up in the through-hole, and the upper surface of first top ring sets up with the lower surface of second top ring is integrative, and the internal diameter of first top ring is less than the internal diameter of second top ring, is provided with the fixed screw in the first top ring, and the nut of fixed screw erects at the upper surface of first top ring.

Further, the nut of the set screw is tangential to the inner diameter of the second top ring.

Further, the idler wheel main body is provided with a connector on the end face close to the connecting body, the connector is provided with an internal thread hole along the axial lead direction of the through hole of the connecting body, and the fixing screw is in threaded connection with the internal thread hole.

Further, the positions of the nuts of the fixing screws, which correspond to the positions of the two ends, connected with the screw rods are provided with jacks with the same diameter, and the bottoms of the two ends, connected with the screw rods, are spliced with the jacks.

Furthermore, two angular contact ball bearings are arranged, the sizes of the two angular contact ball bearings are the same, and the two angular contact ball bearings are vertically overlapped and sleeved on the outer side of the limiting ring; the limit structure comprises a body bolt hole formed in the end face of the connecting body, far away from the idler wheel main body, an end cover is arranged on one side of the connecting body, far away from the idler wheel main body, an end cover bolt hole matched with the end cover is formed in the position, corresponding to the body bolt hole, of the end cover, the end cover is connected with the connecting body through bolts, and the end cover is sleeved on the outer side of the two ends, where the screw rods are connected.

Further, the lower surface of the end cover is propped against the top of the angular contact ball bearing, and the inner diameter of the end cover is larger than the outer diameter of the inner ring of the angular contact ball bearing.

The beneficial effects of the utility model are as follows: according to the utility model, the two ends are connected with the screw rod, the connecting body, the angular contact ball bearing and the fixing structure, as the threaded parts are arranged at the upper parts of the two ends connected with the screw rod, when the upper parts are connected with external components, axial distance adjustment can be realized through the threaded parts, the connecting body and the end cover can fix the axial positions of the two ends connected with the screw rod through the contact ball bearing, and due to the arrangement of the angular contact ball bearing, the idler wheel main body can be adjusted by radial arbitrary rotation of the lower part, so that the porous reaming and honing tool can be effectively supported when half holes are processed, the half holes can be directly processed at lower cost by adopting the existing structure, the investment of disposable production equipment can be reduced, and the problem of product processing precision can be solved; the idler pulley main body and the connecting body can be combined to realize high-precision axial distance adjustment and radial rotation by forming a fixed structure through the connector, the fixed screw and the first top ring; through set up the jack on the nut of fixed screw, be favorable to fixed both ends to connect the lead screw.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a fastening structure according to the present utility model;

fig. 4 is a schematic view of the internal structure of the connecting body according to the present utility model.

In the figure, 1, a connecting body; 2. a set screw; 3. an end cap; 4. both ends are connected with screw rods; 5. angular contact ball bearings; 6. a body bolt hole; 7. an end cap bolt hole; 8. an idler body; 9. a connector; 10. a limiting ring; 11. a first top ring; 12. and a second top ring.

Detailed Description

The utility model is further illustrated by the following description in conjunction with the accompanying drawings and specific embodiments.

Examples:

as shown in fig. 1-4, a floating idler connecting rod assembly comprises a connecting body 1 connected with the end part of an idler main body 8 through a fixed structure, and two end connecting screw rods 4 with the bottoms inserted into the connecting body 1, wherein a through hole is formed in the middle of the connecting body 1, an annular second top ring 12 is integrally arranged in the through hole, and the second top ring 12 is sleeved outside the two end connecting screw rods 4; the two-end connecting screw rod 4 comprises a threaded part and an optical axis part, the optical axis part is positioned at the middle part or the lower part of the two-end connecting screw rod 4, a limiting ring 10 is sleeved outside the optical axis part, two angular contact ball bearings 5 are sleeved outside the limiting ring 10, the two angular contact ball bearings are identical in size, the bottoms of the angular contact ball bearings 5 are erected on the upper surface of a second top ring 12, and a limiting structure for limiting the angular contact ball bearings 5 to move up and down is arranged on the end face, far away from the idler pulley main body 8, of the connecting body 1; by arranging the two-end connecting screw rod 4, the connecting body 1, the angular contact ball bearing 5 and the fixing structure, as the upper part of the two-end connecting screw rod 4 is provided with a threaded part, when the upper part is connected with an external component, axial distance adjustment can be realized through the threaded part, the connecting body 1 and the end cover 3 can fix the axial position of the two-end connecting screw rod 4 through the contact ball bearing 5, and as the angular contact ball bearing is arranged, the lower part can radially and randomly rotate to adjust the idler wheel main body 8, so that the porous reaming and honing cutter can be effectively supported when a half hole is processed, the half hole can be directly processed by using lower cost by adopting the existing structure, the investment of disposable production equipment can be reduced, and the problem of product processing precision can be solved; the idler wheel main body 8 is connected to the connecting rod subassembly one end of this application, and the drive shaft in the middle of the machine multi-axle head is connected to the other end.

The outer diameter of the angular ball bearing 5 is the same as the inner diameter of the connection body 1, and the inner diameter of the angular ball bearing 5 is larger than the inner diameter of the second top ring 12.

The fixing structure comprises an annular first top ring 11 integrally arranged in the through hole, the upper surface of the first top ring 11 and the lower surface of the second top ring 12 are integrally arranged, the inner diameter of the first top ring 11 is smaller than that of the second top ring 12, a fixing screw 2 is arranged in the first top ring 11, a nut of the fixing screw 2 is erected on the upper surface of the first top ring 11, and the nut of the fixing screw 2 is tangent to the inner diameter of the second top ring 12; the idler pulley main body 8 is provided with a connector 9 on the end surface close to the connecting body 1, the connector 9 is provided with an internal threaded hole along the axial line direction of the through hole of the connecting body 1, and the fixing screw 2 is in threaded connection with the internal threaded hole; through connector 9, set screw 2 and first top ring 11 constitution fixed knot construct, can combine idler main part 8 and connection body 1, realize high accuracy axial roll adjustment and radial rotation.

The positions of the nuts of the fixed screws 2, which correspond to the positions of the two ends connected with the screw rods 4, are provided with jacks with the same diameter, and the bottoms of the two ends connected with the screw rods 4 are spliced with the jacks; through set up the jack on the nut of fixed screw 2, be favorable to fixed both ends to connect lead screw 4. When no jack is arranged or the two-end connecting screw rod 4 is not inserted into the bottom of the jack, a gap is reserved between the lower part of the two-end connecting screw rod 4 and the axial direction of the fixed screw 2, and a gap is reserved between the radial direction and the connecting body 1, so that the two-end connecting screw rod 4 can be conveniently axially adjusted or fixed; the radial upper part is fixed on the lower part and can rotate arbitrarily.

The limiting structure comprises a body bolt hole 6 formed in the end face, far away from the idler wheel main body 8, of the connecting body 1, an end cover 3 is arranged on one side, far away from the idler wheel main body 8, of the connecting body 1, an end cover bolt hole 7 matched with the end cover 3 is formed in the position, corresponding to the body bolt hole 6, of the end cover 3, the end cover 3 is connected with the connecting body 1 through a bolt, and the end cover 3 is sleeved on the outer side of a connecting screw rod 4 at two ends; the lower surface of the end cover 3 is propped against the top of the angular contact ball bearing 5, and the inner diameter of the end cover 3 is larger than the outer diameter of the inner ring of the angular contact ball bearing 5; by arranging the end cover 3 to fix the upper outer ring of the angular contact ball bearing 5, the pretightening force can be increased.

The installation process comprises the following steps: the connecting body 1 is arranged above the connector 9 of the idler pulley main body 8, the first top ring 11 is ensured to be positioned below the second top ring 12, the fixing screw 2 is screwed into an internal threaded hole of the connector 9 from the inside of the connecting body 1, the connecting body 1 and the idler pulley main body 8 are fixed, then two angular contact ball bearings 5 are sleeved on the outer sides of the limiting rings 10 of the connecting screw rods 4 at two ends, the connecting body 1 is inserted, the bottom surface of the angular contact ball bearings 5 is tightly attached to the upper surface of the second top ring 12, the outer ring of the angular contact ball bearings contacts with the inner wall of the connecting body 1, finally, the end cover bolt holes 7 on the end cover 3 are aligned with the body bolt holes 6 on the connecting body 1, and then the bolts are screwed into the connecting body to be fixed; the screw rods 4 are connected at two ends, and the screw threads for adjustment are arranged at two ends, and the length of the screw rods 4 is adjusted to adjust the lifting of the idler wheel main body 8, so that the highest point of the idler wheel supporting cutter can be changed, and the purpose of adjusting the scale circle of the cutter is achieved; the idler body 8 can be moved with the tool by radial rotation.

The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.

Claims

1. A floating idler bar assembly, characterized by: comprises a connecting body (1) connected with the end part of an idler wheel main body (8) through a fixed structure, and two ends of which the bottom is inserted into the connecting body (1) are connected with screw rods (4); the middle part of the connecting body (1) is provided with a through hole, an annular second top ring (12) is integrally arranged in the through hole, and the second top ring (12) is sleeved outside the connecting screw rod (4) at two ends; the screw rod (4) is connected at both ends including screw thread portion and optical axis part, and optical axis part is located the middle part or the lower part of screw rod (4) is connected at both ends, and the outside cover of optical axis part is equipped with spacing ring (10), and the outside cover of spacing ring (10) is equipped with at least angular contact ball bearing (5), and the bottom of angular contact ball bearing (5) is erect at second top ring (12) upper surface, and the terminal surface that idler main part (8) was kept away from to connecting body (1) is provided with limit structure that restriction angular contact ball bearing (5) were moved about.

2. A floating idler tie rod assembly as claimed in claim 1, wherein: the outer diameter of the angular contact ball bearing (5) is the same as the inner diameter of the connecting body (1), and the inner diameter of the angular contact ball bearing (5) is larger than the inner diameter of the second top ring (12).

3. A floating idler tie rod assembly as claimed in claim 2, wherein: the fixed knot constructs including integrative annular first top ring (11) that sets up in the through-hole, and the upper surface of first top ring (11) sets up with the lower surface of second top ring (12) an organic whole, and the internal diameter of first top ring (11) is less than the internal diameter of second top ring (12), is provided with set screw (2) in first top ring (11), and the nut of set screw (2) erects the upper surface at first top ring (11).

4. A floating idler tie rod assembly as claimed in claim 3, wherein: the nut of the fixing screw (2) is tangent with the inner diameter of the second top ring (12).

5. A floating idler tie rod assembly as set forth in claim 4 wherein: the idler wheel main body (8) is provided with a connector (9) on the end face close to the connecting body (1), the connector (9) is provided with an internal thread hole along the axial lead direction of the through hole of the connecting body (1), and the fixing screw (2) is in threaded connection with the internal thread hole.

6. A floating idler tie rod assembly as set forth in claim 5 wherein: the positions of the nuts of the fixed screws (2) corresponding to the two ends of the fixed screws are provided with jacks with the same diameter as the fixed screws, and the bottoms of the two ends of the fixed screws are connected with the jacks in an inserting mode.

7. A floating idler tie rod assembly as set forth in claim 6 wherein: the two angular contact ball bearings (5) are the same in size, and the two angular contact ball bearings (5) are vertically overlapped and sleeved on the outer side of the limiting ring (10); limit structure is including seting up body bolt hole (6) of the terminal surface that is kept away from idler main part (8) at connecting body (1), and one side that connecting body (1) kept away from idler main part (8) is provided with end cover (3), and the position that end cover (3) corresponds body bolt hole (6) is provided with end cover bolt hole (7) rather than the adaptation, and end cover (3) are connected with connecting body (1) through the bolt, and the outside at both ends connection lead screw (4) is established to end cover (3) cover.

8. A floating idler tie rod assembly as set forth in claim 7 wherein: the lower surface of the end cover (3) is propped against the top of the angular contact ball bearing (5), and the inner diameter of the end cover (3) is larger than the outer diameter of the inner ring of the angular contact ball bearing (5).