Fine boring rod for hinge beam earhole

Abstract

The utility model is applicable to the technical field of machining cutters, and provides a fine boring bar for hinge beam earholes, which comprises a bar body and a boring head mounted on the bar body, a mounting column is arranged on the upper surface of the bar body, a mounting groove matched with the mounting column is arranged on the lower surface of the boring head, the mounting column is hollow, and the boring head is provided with a mounting groove matched with the mounting column. A plurality of contraction grooves communicating with the interior of the mounting column are formed in the outer surface of the mounting column, limiting rods sliding in the contraction grooves are arranged in the contraction grooves, one ends of the limiting rods extend into the mounting column through the contraction grooves, and a control assembly for controlling the multiple limiting rods to move at the same time is arranged in the mounting column; a plurality of limiting grooves matched with the limiting rods are formed in the inner wall of the mounting groove, when the boring rod of the device carries out fine boring treatment on the hinge beam earhole, the problem that the boring head is loosened under the influence of reverse acting force is solved, and the effect of fine boring treatment on the hinge beam earhole is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining tool technical field more specifically, it relates to a kind of for hinge beam ear hole's fine boring boring bar. BACKGROUND

[0002] In the process of manufacturing synthetic diamond, the hinge beam type six-surface hydraulic press equipment is generally used, and the hinge beam is an essential key component of the equipment. The ear hole and the cylinder body have very high matching precision during assembly. Therefore, the ear hole needs to be fine bored during the processing of the hinge beam to ensure the installation precision of the hinge beam.

[0003] The existing boring bar is generally used for fine boring of the hinge beam ear hole. The boring head of the boring bar is inserted into the hinge beam ear hole, and then the boring bar is driven to rotate by the power head of the boring bed frame, so that the boring head can fine bore the hinge beam ear hole. Therefore, the boring head is an important structure for fine boring of the hinge beam ear hole. However, different diameters of ear holes need to be fine bored during the fine boring process of the hinge beam ear hole, so different boring heads need to be replaced. However, most of the existing boring heads and boring bars are installed in a threaded manner. Although this facilitates the installation of the boring head, when the boring head is inserted into the hinge beam ear hole and rotates, if the boring head rotates along the thread direction, a certain reaction force will be generated due to the friction between the boring head blade and the inner wall of the hinge beam ear hole. Therefore, the boring head and the boring bar are prone to loosening after long-term fine boring of the hinge beam ear hole, which affects the processing effect of the hinge beam ear hole. If the boring head rotates along the thread direction, the boring head and the boring bar become tighter and tighter under long-term use, which increases the difficulty of replacing the boring head later. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a fine boring boring bar for hinge beam ear holes, which can prevent the boring head from loosening under the influence of reverse force during fine boring of the hinge beam ear hole, and further ensure the effect of fine boring of the hinge beam ear hole.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A fine boring boring bar for hinge beam ear holes includes a rod body and a boring head installed on the rod body. The upper surface of the rod body is provided with a mounting column, and the lower surface of the boring head is provided with a mounting groove matched with the mounting column. The mounting column is hollow, and a plurality of contraction grooves are formed on the outer surface of the mounting column and communicate with the inside of the mounting column. A limiting rod is arranged in each contraction groove to slide in the contraction groove. One end of the limiting rod extends into the inside of the mounting column through the contraction groove. A control assembly is arranged in the mounting column to control the simultaneous displacement of the plurality of limiting rods. A plurality of limiting grooves matched with the limiting rods are formed on the inner wall of the mounting groove.

[0007] The utility model further sets up: control subassembly includes screw rod, and the screw rod is vertically arranged in the mounting column, and the upper end is rotatably connected with the mounting column top wall, and the outer surface of screw rod is provided with the threaded sleeve, and the outer surface of threaded sleeve is hinged with control rotation board, and the other side of control rotation board is hinged with the side of limiting rod in the mounting column.

[0008] The utility model further sets up: the rod body is provided with the drive part in the outside, and the surface of drive part is provided with hexagonal groove, and the side of drive part close to the rod body is provided with the second pivot, and the other end of second pivot is rotatably penetrated into the drive cavity.

[0009] The utility model further sets up: the rod body is provided with the drive part in the outside, and the surface of drive part is provided with hexagonal groove, and the side of drive part close to the rod body is provided with the second pivot, and the other end of second pivot is rotatably penetrated into the drive cavity.

[0010] The utility model further sets up: the second pivot is provided with the second bevel gear in the end in the drive cavity, and the first bevel gear is connected with the second bevel gear.

[0011] The utility model further sets up: the boring head is provided with boring cutter installation groove for boring cutter installation.

[0012] The utility model further sets up: the outer surface of limiting rod in the contraction groove is provided with a plurality of installation grooves, and the secondary limiting column that slides in the installation groove is arranged in the installation groove, and the spring between secondary limiting column and the inner wall of installation groove is arranged, and the end of secondary limiting column away from spring is hemispherical, and the inner wall of limiting groove is provided with a plurality of secondary limiting grooves matched with secondary limiting column.

[0013] The utility model has the advantages of:

[0014] Firstly, the utility model is provided with limiting rod and other structures, so that the boring head is installed on the rod body in a way different from the traditional threaded installation, and when the boring rod is used to fine-bore the ear hole of the hinge beam, the boring head will not be loosened under the influence of the reverse force, thereby further ensuring the effect of fine-boring the ear hole of the hinge beam.

[0015] Secondly, the utility model is provided with a control assembly, which can control the displacement of multiple limiting rods at the same time, and the boring head can be quickly replaced without being controlled one by one, so that it is more convenient to fine-bore the ear hole of the hinge beam with different diameters.

[0016] Thirdly, the utility model is provided with secondary limiting column and other structures, so that the tightness between the limiting rod and the limiting groove is further increased, and the stability and firmness of the boring head after installation are further improved. DRAWINGS

[0017] Figure 1 It is the structure schematic view of boring bar of the ear hole of the hinge beam of the utility model;

[0018] Figure 2 It is the sectional structure schematic view of the utility model mounting column and pole body;

[0019] Figure 3 It is the bottom sectional view of boring head of the utility model;

[0020] Figure 4 It is Figure 2 The enlarged view of A in the middle;

[0021] Figure 5 It is Figure 4 The enlarged view of B in the middle.

[0022] In the figure: 1, pole body; 2, boring head; 3, boring cutter installation groove; 4, mounting column; 5, installation groove; 6, contraction groove; 7, limiting rod; 8, control assembly; 801, screw rod; 802, threaded sleeve; 803, control rotating plate; 804, first rotating shaft; 805, driving cavity; 806, first bevel gear; 807, driving piece; 808, second rotating shaft; 809, second bevel gear; 9, limiting groove; 10, installation groove; 11, secondary limiting column; 12, spring; 13, secondary limiting groove. DETAILED DESCRIPTION

[0023] Please refer to Figures 1-5 The utility model provides the following technical scheme:

[0024] Specifically refers to a kind of boring boring bar for hinge beam ear hole, including pole body 1 and boring head 2 being installed on pole body 1, boring head 2 is opened simultaneously with boring cutter installation groove 3 for boring cutter installation, the upper surface of pole body 1 is provided with mounting column 4, the lower surface of boring head 2 is opened with the installation groove 5 of adaptation with mounting column 4, so boring head 2 is completed installation on pole body 1 by installation groove 5 and mounting column 4 butt joint.

[0025] The installation column 4 is hollow inside, and a plurality of contraction grooves 6 are formed on the outer surface of the installation column 4 and communicate with the inside of the installation column 4. The contraction grooves 6 are provided with limiting rods 7 sliding in the contraction grooves 6. One end of the limiting rod 7 extends to the inside of the installation column 4 through the contraction groove 6. The installation column 4 is provided with a control assembly 8 for controlling the simultaneous displacement of the plurality of limiting rods 7. A plurality of limiting grooves 9 matched with the limiting rods 7 are formed on the inner wall of the installation groove 5. When the installation column 4 extends into the installation groove 5, the plurality of limiting rods 7 are controlled to displace outward by the control assembly 8, so that the limiting rods 7 gradually displace into the limiting grooves 9 and finally fit with the limiting grooves 9. The boring head 2 is installed in the installation column 4 in the above-mentioned manner of the pin rod, which is quite different from the traditional threaded installation. Therefore, when the boring rod is subjected to fine boring treatment on the hinge beam ear hole, the boring head 2 will not be loose due to the influence of the reverse force, further ensuring the effect of fine boring treatment on the hinge beam ear hole.

[0026] The control assembly 8 comprises a screw rod 801 vertically arranged in the installation column 4 and rotationally connected to the top wall of the installation column 4 at the upper end. A threaded sleeve 802 is threadedly sleeved on the outer surface of the screw rod 801. A control rotating plate 803 is hingedly connected to the outer surface of the threaded sleeve 802 facing the limiting rod 7. The other side of the control rotating plate 803 is hingedly connected to one side of the limiting rod 7 in the installation column 4. Therefore, in use, the threaded sleeve 802 is displaced upward or downward under the transmission of the screw rod 801 through rotation of the screw rod 801. When the threaded sleeve 802 is displaced upward on the screw rod 801, the threaded sleeve 802 forms a pushing force on the control rotating plate 803, so that the control rotating plate 803 synchronously pushes the limiting rod 7 to displace outward. When the threaded sleeve 802 is displaced downward, the threaded sleeve 802 forms a pulling force on the control rotating plate 803, so that the control rotating plate 803 pulls the limiting rod 7 to displace inward of the installation column 4, so as to pull the limiting rod 7 out of the limiting groove 9. Therefore, the boring head 2 can be removed from the rod body 1. The above structure can control the displacement of the plurality of limiting rods 7 at the same time, without controlling one by one. The boring head 2 can be quickly replaced, which is more convenient for fine boring of hinge beam ear holes of different diameters.

[0027] The rod body 1 is provided with a driving cavity 805, the lower end of the screw rod 801 is provided with a first rotating shaft 804, the lower end of the first rotating shaft 804 rotates and penetrates into the driving cavity 805, the lower end of the first rotating shaft 804 is provided with a first bevel gear 806, the outer side of the rod body 1 is provided with a driving piece 807, and the surface of the driving piece 807 is provided with a hexagonal groove, so that the driving piece 807 can be screwed by a hexagonal rod, the side, close to the rod body 1, of the driving piece 807 is provided with a second rotating shaft 808, the other end of the second rotating shaft 808 rotates and penetrates into the driving cavity 805, and the end, located in the driving cavity 805, of the second rotating shaft 808 is provided with a second bevel gear 809; the first bevel gear 806 is in meshing connection with the second bevel gear 809, so that, in use, the driving piece 807 is screwed, the second rotating shaft 808 is driven to rotate synchronously by the driving piece 807, the second bevel gear 809 rotates synchronously with the second rotating shaft 808, and the first bevel gear 806 rotates under the meshing transmission of the second bevel gear 809, so that the screw rod 801 is driven to rotate.

[0028] The outer surface of the limiting rod 7, located in the contraction groove 6, is provided with a plurality of mounting grooves 10, the mounting grooves 10 are provided with secondary limiting columns 11 which slide in the mounting grooves 10, springs 12 are arranged between the secondary limiting columns 11 and the inner walls of the mounting grooves 10, and the end, away from the springs 12, of the secondary limiting column 11 is hemispherical; when the secondary limiting column 11 is displaced into the contraction groove 6, the secondary limiting column 11 is in contact with the inner wall of the contraction groove 6, so that the secondary limiting column 11 is completely contracted into the mounting groove 10, and the springs 12 are extruded to be in a contraction state; the inner wall of the limiting groove 9 is provided with a plurality of secondary limiting grooves 13 which are matched with the secondary limiting columns 11, so that when the limiting rod 7 is displaced into the limiting groove 9, the secondary limiting columns 11 are synchronously moved into the limiting groove 9; when the limiting rod 7 is completely displaced into the limiting groove 9, the secondary limiting columns 11 are located at the same positions as the secondary limiting grooves 13, at this moment, the springs 12 are extruded and push the secondary limiting columns 11 into the secondary limiting grooves 13, so that the compactness between the limiting rod 7 and the limiting groove 9 is further increased, and the stability and firmness of the boring head 2 after installation are further improved.

[0029] The working principle of the boring rod for the fine boring of the ear hole of the hinge beam provided by the utility model is as follows: when the boring head 2 needs to be installed, the mounting column 4 is inserted into the mounting groove 5, at this moment, the driving piece 807 is screwed, the second rotating shaft 808 is driven to rotate synchronously by the driving piece 807, the second bevel gear 809 rotates synchronously with the second rotating shaft 808, at this moment, the first bevel gear 806 rotates under the meshing transmission of the second bevel gear 809, the screw rod 801 rotates synchronously, the threaded sleeve 802 is displaced upwards on the screw rod 801, the threaded sleeve 802 forms a pushing force on the control rotating plate 803, the control rotating plate 803 synchronously pushes the limiting rod 7 to displace outward, and finally pushes into the limiting groove 9, so that the installation of the boring head 2 is completed.

Claims

1. A fine boring bar for hinge beam ear hole, comprising a bar body (1) and a boring head (2) mounted on the bar body (1), characterized in that: The upper surface of the rod body (1) is provided with a mounting column (4), the lower surface of the boring head (2) is provided with a mounting groove (5) matched with the mounting column (4), the mounting column (4) is hollow, a plurality of contraction grooves (6) are arranged on the outer surface of the mounting column (4) and communicated with the inside of the mounting column (4), the contraction grooves (6) are provided with limiting rods (7) sliding in the contraction grooves (6), one end of the limiting rod (7) extends to the inside of the mounting column (4) through the contraction groove (6), the mounting column (4) is provided with a control assembly (8) for controlling the displacement of the plurality of limiting rods (7), and a plurality of limiting grooves (9) matched with the limiting rods (7) are arranged on the inner wall of the mounting groove (5).

2. A precision boring bar for boring the ear hole of a hinge beam according to claim 1, characterized in that: The control assembly (8) comprises a screw rod (801), the screw rod (801) is vertically arranged in the mounting column (4) and is rotationally connected to the top wall of the mounting column (4) at the upper end, a threaded sleeve (802) is sleeved on the outer surface of the screw rod (801), a control rotating plate (803) is hinged to the outer surface of the limiting rod (7) facing the threaded sleeve (802), and the other side of the control rotating plate (803) is hinged to the side of the limiting rod (7) in the mounting column (4).

3. A precision boring bar for boring the ear holes of a hinge beam according to claim 2, characterized in that: The rod body (1) is provided with a driving cavity (805), the lower end of the screw rod (801) is provided with a first rotating shaft (804), the lower end of the first rotating shaft (804) rotationally penetrates into the driving cavity (805), and the lower end of the first rotating shaft (804) is provided with a first bevel gear (806).

4. A precision boring bar for boring the ear holes of a hinge beam according to claim 3, characterized in that: The rod body (1) is provided with a driving member (807), the driving member (807) is provided with a second rotating shaft (808) on the side close to the rod body (1), and the other end of the second rotating shaft (808) rotationally penetrates into the driving cavity (805).

5. A precision boring bar for boring the ear holes of a hinge beam according to claim 4, characterized in that: The surface of the driving member (807) is provided with a hexagonal groove.

6. A precision boring bar for boring the ear holes of a hinge beam according to claim 4, characterized in that: The second rotating shaft (808) is provided with a second bevel gear (809) on the end located in the driving cavity (805), and the first bevel gear (806) is in meshing connection with the second bevel gear (809).

7. A precision boring bar for boring the ear holes of a hinge beam according to claim 1, characterized in that: The boring head (2) is provided with a boring cutter mounting groove (3) for boring cutter mounting.

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