Machine clamping type two-tooth boring bar

Abstract

The utility model discloses a machine clamping type two-tooth boring bar, which relates to the technical field of boring bars, and comprises a boring bar body and a guide shaft arranged below the boring bar body, the outer side of the guide shaft is fixedly sleeved with a connecting ring, the outer wall of the connecting ring is fixedly provided with two symmetrically arranged fixing rods, the rod walls of the two fixing rods are both rotatably sleeved with rotating plates, and the rotating plates are arranged on the rotating plates. Positioning rods are fixedly arranged at the ends, away from each other, of the two rotating plates, positioning grooves are formed in the two sides of the bottom of the boring rod body, the upper ends of the positioning rods are matched with the interiors of the positioning grooves in an inserted connection mode, connecting plates are fixedly arranged at the ends, close to each other, of the two rotating plates, and a pushing connecting mechanism is arranged between the two connecting plates and the connecting ring. According to the boring rod body, the guide shaft, the positioning block, the positioning groove, the fixing rod, the rotating plate, the positioning rod and the positioning groove, the guide shaft and the boring rod body can be rapidly connected, and an operator can conveniently, rapidly and effectively disassemble and assemble the boring rod.

Description

Technical Field

[0001] The utility model relates to the technical field of boring bars, in particular to a machine-clamped two-tooth boring bar. Background Art

[0002] The boring bar is a connecting rod between the boring machine, deep hole boring machine and the corresponding drill bit, boring head, rolling head and combined boring and rolling head. The boring bar in the prior art is generally set with a single tooth, which is easy to wear. At this time, it is necessary to change the material and cutting angle. According to the material characteristics, the boring bar is redesigned and manufactured, and double teeth are added to increase the service life and reduce the defect rate.

[0003] At the same time, the current boring bar is connected to the cutter head by bolts, and the bolt fixing is generally performed manually. When the bolts are tightened manually, the disassembly and assembly of the cutter head is relatively cumbersome, and the locking force cannot be accurately controlled, which causes the boring bar to easily loosen from the cutter head during use, reducing the stability of the boring bar. Utility Model Content

[0004] In view of the problems existing in the above-mentioned existing machine-clamped two-tooth boring bar, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a machine-clamped two-tooth boring bar, which solves the problem that the connection between the boring bar and the cutter head by bolts in the prior art is relatively cumbersome and the locking force cannot be accurately controlled.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A machine-clamped two-tooth boring bar, comprising a boring bar body and a guide shaft arranged below the boring bar body, a connecting ring is arranged on the outer fixed sleeve of the guide shaft, two symmetrically arranged fixing rods are fixedly arranged on the outer wall of the connecting ring, the rod walls of the two fixing rods are both rotatably sleeved with rotating plates, and positioning rods are fixedly arranged at one end of the two rotating plates away from each other, positioning grooves are arranged on both sides of the bottom of the boring bar body, and the upper end of the positioning rod is plugged into and matched with the inside of the positioning groove;

[0008] A connecting plate is fixedly arranged at one end of the two rotating plates close to each other, and a pushing connection mechanism is arranged between the two connecting plates and the connecting ring.

[0009] Preferably, two symmetrically arranged chip removal grooves are provided on the upper end of the boring bar body.

[0010] Preferably, the connecting ring and the guide shaft are fixed by welding.

[0011] Preferably, the pushing connection mechanism includes a fixing plate, which is fixedly connected to the outer wall of the connecting ring and has a driving screw rotatably inserted therein. A slide plate is threadedly sleeved on the rod wall of the driving screw, and two symmetrically arranged push rods are fixedly provided on the outer wall of the slide plate. A guide hole is opened inside the connecting plate, and the push rod is slidably arranged in the guide hole.

[0012] Furthermore, a hexagonal rotation groove is formed at the bottom of the driving screw.

[0013] Preferably, a positioning groove is provided at the bottom of the boring bar body, and a positioning block is fixedly provided at the top of the guide shaft, and the positioning block is plug-fitted into the interior of the positioning groove.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The utility model can quickly connect the guide shaft with the boring bar body through the boring bar body, guide shaft, positioning block, positioning groove, fixing rod, rotating plate, positioning rod and positioning groove, so that the operator can perform convenient and effective disassembly and assembly operations.

[0016] 2. The utility model can drive the positioning rod to be quickly plugged into and matched with the positioning groove by means of the rotating plate, connecting plate, pushing connection mechanism and hexagonal rotating groove, thereby further improving the convenience of operation of the boring bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 An enlarged schematic diagram of part A.

[0020] Description of reference numerals:

[0021] 1. Boring bar body; 2. Guide shaft; 3. Connecting ring; 4. Fixed rod; 5. Turn plate; 6. Positioning rod; 7. Positioning groove; 8. Positioning block; 9. Connecting plate; 10. Chip groove; 11. Fixed plate; 12. Drive screw; 13. Slide plate; 14. Push rod; 15. Guide hole; 16. Hexagonal rotating groove. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The utility model embodiment discloses a machine-clamped two-tooth boring bar.

[0024] The utility model provides Figure 1-2 The machine-clamped two-tooth boring bar shown in the figure comprises a boring bar body 1 and a guide shaft 2 arranged below the boring bar body 1, the upper end of the boring bar body 1 is provided with two symmetrically arranged chip removal grooves 10, the outer fixed sleeve of the guide shaft 2 is provided with a connecting ring 3, the connecting ring 3 and the guide shaft 2 are fixed by welding, the outer wall of the connecting ring 3 is fixed with two symmetrically arranged fixing rods 4, the rod walls of the two fixing rods 4 are both rotatably sleeved with a rotating plate 5, and the two rotating plates 5 are fixed with a positioning rod 6 at one end away from each other, and positioning grooves 7 are provided on both sides of the bottom of the boring bar body 1, and the upper end of the positioning rod 6 is plugged into and matched with the inside of the positioning groove 7;

[0025] A connecting plate 9 is fixedly provided at one end close to the two rotating plates 5, and a push connection mechanism is provided between the two connecting plates 9 and the connecting ring 3. The push connection mechanism includes a fixed plate 11, which is fixedly connected to the outer wall of the connecting ring 3, and a driving screw 12 is rotatably penetrated inside. A hexagonal rotating groove 16 is provided at the bottom of the driving screw 12, and a slide plate 13 is threadedly sleeved on the rod wall of the driving screw 12. Two symmetrically arranged push rods 14 are fixedly provided on the outer wall of the slide plate 13, and a guide hole 15 is provided inside the connecting plate 9, and the push rod 14 is slidably arranged in the guide hole 15.

[0026] When connecting the boring bar body 1 and the guide shaft 2, after connecting the guide shaft 2 to the boring bar body 1, the driving screw 12 can be rotated with the help of the cooperation between the external hexagonal bolt and the hexagonal rotating groove 16, and the slide plate 13 moves longitudinally. At this time, the slide plate 13 drives the two push rods 14 to move downward, and under the sliding cooperation of the push rods 14 and the guide holes 15, the two connecting plates 9 move downward, and the connecting plate 9 can drive the rotating plate 5 to rotate. At this time, the rotating plate 5 drives the positioning rod 6 to rotate stably under the support of the fixed rod 4, so that the upper end of the positioning rod 6 can be stably inserted into the positioning groove 7. At this time, under the plug-in cooperation of the two positioning rods 6 and the positioning groove 7, the rapid forming of the boring bar can be completed, and the convenience of using the boring bar is improved. At the same time, with the cooperation of the two cutter teeth, the processing strength of the boring bar can be improved. At the same time, with the cooperation of the chip removal groove 10, the waste chips can be quickly moved away from the workpiece during the processing.

[0027] In order to improve the connection accuracy between the boring bar body 1 and the guide shaft 2, Figure 1 As shown, a positioning groove is provided at the bottom of the boring bar body 1, and a positioning block 8 is fixedly provided at the top of the guide shaft 2, and the positioning block 8 is plugged into and matched with the inside of the positioning groove.

[0028] With the plug-in cooperation between the positioning block 8 and the positioning groove, the center line of the guide shaft 2 and the boring bar body 1 can be made to coincide, thereby ensuring the machining accuracy of the boring bar.

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A machine-clamped two-tooth boring bar, comprising a boring bar body (1) and a guide shaft (2) arranged below the boring bar body (1), characterized in that: The outer fixed sleeve of the guide shaft (2) is provided with a connecting ring (3), the outer wall of the connecting ring (3) is fixed with two symmetrically arranged fixing rods (4), the rod walls of the two fixing rods (4) are rotatably sleeved with a rotating plate (5), and the two rotating plates (5) are fixed with a positioning rod (6) at one end away from each other, and positioning grooves (7) are provided on both sides of the bottom of the boring bar body (1), and the upper end of the positioning rod (6) is plugged into and matched with the inside of the positioning groove (7); A connecting plate (9) is fixedly provided at one end of the two rotating plates (5) that are close to each other, and a pushing connection mechanism is provided between the two connecting plates (9) and the connecting ring (3).

2. The machine-clamped two-tooth boring bar according to claim 1, characterized in that: The upper end of the boring bar body (1) is provided with two symmetrically arranged chip removal grooves (10).

3. The machine-clamped two-tooth boring bar according to claim 1, characterized in that: The connecting ring (3) and the guide shaft (2) are fixed by welding.

4. The machine-clamped two-tooth boring bar according to claim 1, characterized in that: The push connection mechanism comprises a fixing plate (11), the fixing plate (11) is fixedly connected to the outer wall of the connecting ring (3), and a driving screw (12) is rotatably inserted inside the fixing plate (11), a slide plate (13) is threadedly sleeved on the rod wall of the driving screw (12), and two symmetrically arranged push rods (14) are fixedly arranged on the outer wall of the slide plate (13), a guide hole (15) is opened inside the connecting plate (9), and the push rod (14) is slidably arranged in the guide hole (15).

5. The machine-clamped two-tooth boring bar according to claim 4, characterized in that: The bottom of the driving screw rod (12) is provided with a hexagonal rotation groove (16).

6. The machine-clamped two-tooth boring bar according to claim 1, characterized in that: A positioning groove is provided at the bottom of the boring bar body (1), and a positioning block (8) is fixedly provided at the top of the guide shaft (2), wherein the positioning block (8) is plug-fitted into the interior of the positioning groove.

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