A double-head, double-workpiece boring machine

Abstract

This utility model relates to the field of boring machine technology and discloses a double-headed, double-workpiece boring machine. The machine includes a frame, with boring components mounted on the side walls of the frame. A mounting frame is fixedly connected to the side walls of the frame, and a fixing component is mounted on the side walls of the mounting frame. In this double-headed, double-workpiece boring machine, movable plates one and two move towards each other to clamp the workpiece. The workpiece is clamped simultaneously from both sides, with uniform clamping force, preventing offset or tilting and ensuring machining accuracy. The cam has a self-locking characteristic, preventing easy reversal after positioning. Rotating bolts change the lateral position of the limiting plate, altering the initial distance between the movable plates, flexibly adjusting the clamping space, and improving the applicability of the equipment. After adjustment, movable plates one and two fit more closely to both sides of the workpiece, reducing gaps, ensuring accurate workpiece positioning, uniform clamping force, and preventing workpiece offset due to excessive or insufficient spacing.

Description

Technical Field

[0001] This utility model relates to the field of boring machine technology, specifically a double-head, double-workpiece boring machine. Background Technology

[0002] Boring refers to the further processing of forged, cast, or drilled holes. Boring can enlarge the hole diameter, improve accuracy, reduce surface roughness, and can also better correct the deviation of the original hole axis. Boring can be divided into rough boring, semi-finish boring, and finish boring. Most existing boring machines are single-head boring machines. After the hole at one end of the workpiece is processed, it needs to be clamped again before boring. The process is more complicated, time-consuming, and inconvenient to use.

[0003] According to a public announcement of a novel double-head boring machine (announcement numbers: CN212144570U, CN202447893UU), the above application includes a boring machine tool. The boring machine tool has an inner mounting groove, and a first adjusting screw is rotatably connected to the left side of the inner side of the mounting groove. A drive motor is fixedly connected to the left end of the boring machine tool.

[0004] However, in actual use, when the above-mentioned boring machine only needs to bore the workpiece on one side, the other end loses symmetrical support, the workpiece clamping force is insufficient, it is prone to vibration, the workpiece is prone to displacement, and the accuracy is reduced. In view of this, we propose a double-head double-workpiece boring machine. Utility Model Content

[0005] The purpose of this invention is to provide a double-head, double-workpiece boring machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-head, double-workpiece boring machine, comprising a frame, a boring assembly disposed on the side wall of the frame, a mounting frame fixedly connected to the side wall of the frame, and a fixing assembly disposed on the side wall of the mounting frame, the fixing assembly comprising: A fixing rod, wherein a fixing plate is fixedly connected to the end face of the fixing rod, and bolts are threadedly connected to the side wall of the fixing plate; Movable plate one, a connecting rod is fixedly connected to the side wall of movable plate one, a limit plate is sleeved on the side wall of the connecting rod, and movable plate two is sleeved on the side wall of the fixed rod; A sliding frame, wherein a cam is rotatably connected to the side wall of the sliding frame.

[0007] Preferably, the boring assembly includes a drive motor fixedly connected to the side wall of the frame, the output end of the drive motor is fixedly connected to a bidirectional screw, the side wall of the bidirectional screw is threadedly connected to a mounting base, and the side wall of the mounting base is fixedly connected to a boring device.

[0008] Preferably, the fixing rod is fixedly connected to the side wall of the mounting frame, and the end face of the bolt is fixedly connected to a knob. The bolt is rotatably connected to the limiting plate. Rotating the bolt changes the lateral position of the limiting plate.

[0009] Preferably, the side wall of the connecting rod is fitted with a spring, and the number of springs is set to several sets. The spring abuts against the sliding frame, the spring abuts against the movable plate, and the spring abuts against the limiting plate. The spring pushes the sliding frame to the center.

[0010] Preferably, the sliding frame is sleeved with the connecting rod, the cam is movably connected to the movable plate, and the cam is movably connected to the fixed plate.

[0011] Preferably, a handle is fixedly connected to the outer wall of the cam, and the movable plate is sleeved with the fixed rod.

[0012] Preferably, the side walls of the first movable plate and the second movable plate are fixedly connected to a hinge frame, the end face of the hinge frame is hinged to an arc-shaped block, the side wall of the arc-shaped block is sleeved with a torsion spring, one end of the torsion spring abuts against the hinge frame, and the other end of the torsion spring abuts against the arc-shaped block.

[0013] Compared with the prior art, this utility model provides a double-head, double-workpiece boring machine, which has the following advantages: 1. This double-head, double-workpiece boring machine, through its fixed components, uses movable plates one and two to move in opposite directions to achieve fixed clamping of the workpiece. The workpiece is clamped simultaneously from both sides, with uniform clamping force, preventing offset or tilting and ensuring machining accuracy. The cam has a self-locking characteristic and will not easily reverse after being rotated to the positioning position. When boring a workpiece on one side is required, the workpiece is offset and placed closer to one side of one of the boring devices. Rotating the bolt changes the lateral position of the limiting plate and alters the initial distance between the movable plates. Regardless of the workpiece size, the clamping space can be flexibly adjusted, improving the applicability of the equipment. After adjustment, movable plates one and two can fit more closely to both sides of the workpiece, reducing gaps, ensuring accurate workpiece positioning, uniform clamping force, and preventing workpiece offset due to excessive or insufficient spacing.

[0014] 2. This double-head, double-workpiece boring machine, through the setting of arc-shaped blocks and torsion springs, allows the arc-shaped blocks to rotate along the outer surface of the workpiece, so that the arc-shaped blocks fit the outer surface of the workpiece. Even if the outer surface of the workpiece has a certain curvature, the arc-shaped blocks can automatically fit, adapting to workpieces of different shapes and sizes, with strong versatility and improved clamping effect. The arc-shaped blocks are in close contact with the outer surface of the workpiece, with a large contact area and more uniform force distribution, making it less likely for the workpiece to loosen or slip during processing, thus enhancing clamping stability. After releasing the clamp, the operator does not need to repeatedly adjust the clamping angle or position, as the arc-shaped blocks can automatically align under the action of the torsion spring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This utility model Figure 1 Schematic diagram of the structure of region A in the middle; Figure 3 This is a schematic diagram of the fixing component structure of this utility model; Figure 4 This is a schematic diagram of the structure of the movable plate of this utility model; Figure 5 This utility model Figure 4 Schematic diagram of the structure of region B in the middle.

[0016] In the diagram: 1. Frame; 2. Drive motor; 3. Bidirectional screw; 4. Mounting base; 5. Boring device; 6. Mounting bracket; 7. Fixing assembly; 701. Fixing rod; 702. Movable plate one; 703. Connecting rod; 704. Limiting plate; 705. Movable plate two; 706. Fixing plate; 707. Bolt; 708. Sliding frame; 709. Spring; 710. Cam; 8. Hinge frame; 9. Arc block; 10. Torsion spring. Detailed Implementation

[0017] like Figures 1-5 As shown, this utility model provides a technical solution: a double-headed, double-workpiece boring machine, including a frame 1, a boring assembly on the side wall of the frame 1, a mounting frame 6 fixedly connected to the side wall of the frame 1, and a fixing assembly 7 on the side wall of the mounting frame 6. The fixing assembly 7 includes a fixing rod 701, a first movable plate 702, a connecting rod 703, a limiting plate 704, a second movable plate 705, a fixing plate 706, a bolt 707, a sliding frame 708, a spring 709, and a cam 710. In one embodiment of this utility model, a fixing rod 701 is fixedly connected to the side wall of the mounting bracket 6, a fixing plate 706 is fixedly connected to the end face of the fixing rod 701, a bolt 707 is threadedly connected to the side wall of the fixing plate 706, and a knob is fixedly connected to the end face of the bolt 707. Movable plate 702 is sleeved with fixed rod 701. A connecting rod 703 is fixedly connected to the side wall of movable plate 702. A limiting plate 704 is sleeved on the side wall of connecting rod 703. Bolt 707 is rotatably connected to limiting plate 704. Rotating bolt 707 changes the lateral position of limiting plate 704. Movable plate 705 is sleeved on the side wall of fixed rod 701. Spring 709 is sleeved on the side wall of connecting rod 703. Several sets of spring 709 are provided. Spring 709 abuts against sliding frame 708, spring 709 abuts against movable plate 705, and spring 709 abuts against limiting plate 704. Spring 709 pushes sliding frame 708 to center.

[0018] The sliding frame 708 is sleeved with the connecting rod 703. The side wall of the sliding frame 708 is rotatably connected to the cam 710. The cam 710 is movably connected to the movable plate 705 and the fixed plate 706. The outer wall of the cam 710 is fixedly connected to the handle.

[0019] The boring assembly includes a drive motor 2 fixedly connected to the side wall of the frame 1. A bidirectional screw 3 is fixedly connected to the output end of the drive motor 2. A mounting base 4 is threadedly connected to the side wall of the bidirectional screw 3. A boring device 5 is fixedly connected to the side wall of the mounting base 4. The boring device 5 includes a boring bar and a boring tool. The specific structure and principle of the boring bar and boring tool are common in existing technologies and will not be described in detail here. Figure 2 This is also reflected in [the text].

[0020] The workpiece is placed between movable plate 1 702 and movable plate 2 705. The cam 710 is rotated, causing it to push movable plate 2 705 and limit plate 704. Limit plate 704 moves towards the fixed plate 706, and further drives movable plate 1 702 to move through connecting rod 703. Movable plate 1 702 and movable plate 2 705 move towards each other, thus achieving fixed clamping of the workpiece. The workpiece is clamped from both sides simultaneously, with uniform clamping force, without deviation or tilting, ensuring machining accuracy. The cam 710 has a self-locking characteristic and will not easily reverse after being rotated to the positioning position.

[0021] The boring device 5 is set in two sets, which can simultaneously bore both sides of the workpiece. When it is necessary to bore only one side of the workpiece, the workpiece is offset and placed close to one side of one set of boring devices 5. After the workpiece is clamped, the bidirectional screw 3 can be driven by the drive motor 2 to rotate, so that the mounting base 4 and the boring device 5 move laterally, and the boring device 5 bores the workpiece.

[0022] Rotating bolt 707 changes the lateral position of limit plate 704. At this time, the distance between movable plate 1 702 and movable plate 2 705 is reduced, changing the initial distance between the movable plates. Regardless of the size of the workpiece, the clamping space can be flexibly adjusted, improving the applicability of the equipment. After adjustment, movable plate 1 702 and movable plate 2 705 can fit more closely to both sides of the workpiece, reducing gaps, ensuring accurate workpiece positioning, uniform clamping force, and avoiding workpiece displacement due to excessive or insufficient distance.

[0023] In addition, a hinge frame 8 is fixedly connected to the side wall of movable plate 1 702 and movable plate 2 705. An arc-shaped block 9 is hinged to the end face of the hinge frame 8. A torsion spring 10 is sleeved on the side wall of the arc-shaped block 9. One end of the torsion spring 10 abuts against the hinge frame 8, and the other end of the torsion spring 10 abuts against the arc-shaped block 9. The arc-shaped block 9 rotates along the outer surface of the workpiece, so that the arc-shaped block 9 fits against the outer surface of the workpiece. Even if the outer surface of the workpiece has a certain curvature, the arc-shaped block 9 can automatically fit, adapting to workpieces of different shapes and sizes, with strong versatility and improved clamping effect. The arc-shaped block 9 is close to the outer surface of the workpiece, with a large contact area and more uniform force, making it less likely for the workpiece to loosen or slip during processing, thus enhancing clamping stability. After releasing the clamp, the operator does not need to repeatedly adjust the clamping angle or position, as the arc-shaped block 9 can automatically align under the action of the torsion spring 10.

[0024] In this utility model, during use, the workpiece is placed between the first movable plate 702 and the second movable plate 705. The cam 710 is rotated, causing the cam 710 to push the second movable plate 705 and the limiting plate 704. The limiting plate 704 moves towards the fixed plate 706, and further drives the first movable plate 702 to move in the same direction through the connecting rod 703. The first movable plate 702 and the second movable plate 705 move towards each other, thereby fixing and clamping the workpiece. The workpiece is then offset and placed so that it is close to one side of one of the boring devices 5. After clamping the workpiece, the bidirectional screw 3 can be driven to rotate by the drive motor 2, causing the mounting base 4 and the boring device 5 to move laterally. The boring device 5 then bores the workpiece.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A double-head, double-workpiece boring machine, comprising a frame (1), wherein a boring assembly is provided on the side wall of the frame (1), characterized in that: A mounting bracket (6) is fixedly connected to the side wall of the frame (1), and a fixing component (7) is provided on the side wall of the mounting bracket (6). The fixing component (7) includes: A fixing rod (701) is fixedly connected to a fixing plate (706) on its end face, and a bolt (707) is threadedly connected to the side wall of the fixing plate (706). Movable plate one (702), a connecting rod (703) is fixedly connected to the side wall of the movable plate one (702), a limit plate (704) is sleeved on the side wall of the connecting rod (703), and a movable plate two (705) is sleeved on the side wall of the fixed rod (701). A sliding frame (708) has a cam (710) rotatably connected to its side wall.

2. The double-head, double-workpiece boring machine according to claim 1, characterized in that: The boring assembly includes a drive motor (2) fixedly connected to the side wall of the frame (1), the output end of the drive motor (2) is fixedly connected to a bidirectional screw (3), the side wall of the bidirectional screw (3) is threadedly connected to a mounting base (4), and the side wall of the mounting base (4) is fixedly connected to a boring device (5).

3. The double-head, double-workpiece boring machine according to claim 1, characterized in that: The fixing rod (701) is fixedly connected to the side wall of the mounting bracket (6), and the end face of the bolt (707) is fixedly connected to a knob.

4. A double-head, double-workpiece boring machine according to claim 1, characterized in that: The side wall of the connecting rod (703) is fitted with a spring (709), and the number of springs (709) is set in several groups. The spring (709) abuts against the sliding frame (708), the spring (709) abuts against the movable plate (705), and the spring (709) abuts against the limiting plate (704).

5. A double-head, double-workpiece boring machine according to claim 1, characterized in that: The sliding frame (708) is sleeved with the connecting rod (703), the cam (710) is movably connected with the movable plate (705), and the cam (710) is movably connected with the fixed plate (706).

6. A double-head, double-workpiece boring machine according to claim 1, characterized in that: A handle is fixedly connected to the outer wall of the cam (710), and the movable plate (702) is sleeved with the fixed rod (701).

7. A double-head, double-workpiece boring machine according to claim 1, characterized in that: The side walls of the first movable plate (702) and the second movable plate (705) are fixedly connected to a hinge frame (8). An arc-shaped block (9) is hinged to the end face of the hinge frame (8). A torsion spring (10) is sleeved on the side wall of the arc-shaped block (9). One end of the torsion spring (10) abuts against the hinge frame (8), and the other end of the torsion spring (10) abuts against the arc-shaped block (9).

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