Three-hole drill bag with center distance capable of being freely adjusted

Abstract

The utility model provides a three-hole drill pack with freely adjustable center distance, which relates to the technical field of machining equipment, and comprises a placing frame and a drill bit, a plurality of power shafts are arranged at the upper end of the placing frame, one side of each power shaft is connected with a transmission shaft, and the transmission shafts drive the drill bit to rotate. Three adjusting devices are arranged at the lower end of the containing frame and used for adjusting the distance between drill bits, each adjusting device comprises a fixing plate, a lead screw, an operating block, an adjusting plate, a connecting piece and a T-shaped groove formed in the bottom of the containing frame, the fixing plates are arranged at the bottom of the containing frame, the operating blocks drive bolts to move in the fixing plates, and the adjusting plates are connected with the connecting pieces. By means of the adjusting device, the distance between the drill bits can be adjusted, then switching of the drilling distance is completed, the hole distance switching time of equipment is shorter than two minutes, the machining adaptability can be improved, and multi-dimensional hole position layouts such as an L-shaped hole position layout and a T-shaped hole position layout can be processed.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment, and in particular to a three-hole drill bag with freely adjustable center distance. Background Technology

[0002] A three-hole drill bit is a tool or accessory used for drilling operations, typically in equipment such as pig snout motors and drilling machines, to perform drilling operations on three holes simultaneously.

[0003] When using a three-hole drill bag, the power shaft on one side of the mounting bracket is driven by a motor, which in turn drives the drill bit to rotate via a transmission shaft. When the drill bit spacing needs adjustment, the fixed drill bit position necessitates changing the mold to accommodate different hole spacings, resulting in a changeover time exceeding 15 minutes. This impacts the efficiency of the three-hole drill bag. Utility Model Content

[0004] The technical problem this invention aims to solve is that when the drill bit spacing needs to be adjusted, the fixed position of the drill bit necessitates changing the mold to adapt to different hole spacings, which takes more than 15 minutes, thus affecting the efficiency of the three-hole drill pack.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a three-hole drill bag with freely adjustable center distance, including a placement frame and drill bits. The upper end of the placement frame is provided with several power shafts, one side of which is connected to a transmission shaft. The transmission shaft drives the drill bits to rotate. The lower end of the placement frame is provided with three adjustment devices, which adjust the spacing between the drill bits.

[0006] The effect achieved by the above components is as follows: when using a three-hole drill bag, the adjustment device adjusts the drill bit spacing to make the drill bit adapt to the subsequent drilling spacing requirements. Then, the power shaft on one side of the mounting frame is driven by a motor, and the power shaft drives the drill bit to rotate through the transmission shaft.

[0007] Preferably, the power shaft can be adapted to a pig snout motor.

[0008] The effects achieved by the above components are as follows: the pig snout motor helps the motor dissipate heat better through specially designed heat dissipation holes, avoiding performance degradation or damage caused by overheating, and can still work normally in harsh environments, making the power source of the power shaft more stable.

[0009] Preferably, the three adjustment devices are located at three edges at the lower end of the placement frame, with two adjustment devices being symmetrical to each other and one adjustment device being perpendicular to the other two adjustment devices.

[0010] The effect achieved by the above components is that, by setting the positions of the three adjustment devices, the three drill bits can be adjusted in multiple directions, thereby improving the adaptability of the drill bits and enabling them to handle L-shaped, T-shaped and other multi-dimensional hole layouts.

[0011] Preferably, the adjustment device includes a fixed plate, a lead screw, an operating block, an adjustment plate, a connector, and a T-shaped groove at the bottom of the placement frame. The fixed plate is located at the bottom of the placement frame. The operating block drives the bolt to move inside the fixed plate. The lead screw drives the adjustment plate to move in the T-shaped groove at the bottom of the placement frame. The adjustment plate is connected to the drive shaft and the drill bit through the connector to adjust the drill bit spacing.

[0012] The effect achieved by the above components is as follows: When it is necessary to change the drilling spacing, the operating block is rotated, causing the lead screw fixed on one side of the operating block to rotate inside the fixed plate fixed on the surface of the placement frame. Then, the adjusting plate threaded on the surface of the lead screw will move along the T-slot opened at the bottom of the lead screw and the placement frame. Then, the position of the drill bit and the drive shaft connected to the surface of the adjusting plate through the connector is adjusted, thereby adjusting the spacing of the holes drilled by the subsequent drill bit. By using the adjusting device, the spacing between the drill bits can be adjusted, and the drilling spacing can be switched, making the hole spacing switching time of the equipment less than two minutes. It can also improve the processing adaptability and can handle multi-dimensional hole layouts such as L-shaped and T-shaped holes.

[0013] Preferably, the connector includes a connecting block and a rotating rod. The connecting block is disposed on the surface of the adjusting plate. A rotating rod is provided on one side of the connecting block. One side of the rotating rod is connected to the transmission shaft, so that the angle between the transmission shaft and the connecting block can be changed. One side of the connecting block is connected to the drill bit.

[0014] The effect achieved by the above components is as follows: when the adjustment plate moves, the connecting block fixed on the surface will drive the drill bit to move, and the rotating rod fixed on one side of the connecting block will rotate with the drive shaft, causing the angle between the drive shaft and the connecting block to change, and then the adjustment plate will complete the adjustment of the drill bit spacing.

[0015] Preferably, the drive shaft is telescopic.

[0016] The effect achieved by the above components is that the transmission shaft can extend and retract, so that the transmission shaft will not get stuck when the angle between the transmission shaft and the connecting block changes, thereby enabling subsequent adjustment of the drill bit spacing.

[0017] Preferably, the lead of the lead screw is ≤2mm.

[0018] The effect achieved by the above components is to improve the positioning accuracy of the lead screw by setting the lead screw lead pitch to ≤2mm, thereby improving the adjustment accuracy of the adjustment device.

[0019] Preferably, the surface of the operating block has a plurality of anti-slip protrusions, which increase the surface friction of the operating block.

[0020] The effect achieved by the above components is that by creating several anti-slip protrusions on the surface of the operating block, the friction of the operating block surface is increased, making it easier for the operator to rotate the operating block.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] By using the adjustment device, the spacing between drill bits can be adjusted, and the drilling spacing can be switched, so that the hole spacing switching time is less than two minutes. It can also improve the processing adaptability and handle multi-dimensional hole layouts such as L-shaped and T-shaped holes. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This utility model Figure 1 A schematic diagram of the three-dimensional structure viewed from below;

[0026] Figure 3 This utility model Figure 1 A schematic diagram of a partial three-dimensional structure;

[0027] Figure 4 This utility model Figure 2 A partial three-dimensional structural diagram.

[0028] Legend: 1. Placement frame; 2. Power shaft; 3. Transmission shaft; 4. Drill bit; 5. Adjustment device; 51. Fixing plate; 52. Lead screw; 53. Operating block; 54. Adjustment plate; 55. T-slot; 56. Connecting piece; 561. Connecting block; 563. Rotating rod. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Figures 1 to 4 The diagram shows a three-hole drill bag with freely adjustable center distance, comprising a mounting frame 1 and drill bits 4. The upper end of the mounting frame 1 has several power shafts 2, one side of which is connected to a transmission shaft 3. The transmission shaft 3 drives the drill bits 4 to rotate. The lower end of the mounting frame 1 has three adjusting devices 5, which adjust the spacing between the drill bits 4. When using the three-hole drill bag, the adjusting devices 5 adjust the spacing between the drill bits 4 to match the subsequent drilling spacing requirements. Then, the power shafts 2 on one side of the mounting frame 1 are driven by a motor, and the power shafts 2, through the transmission shafts 3, drive the drill bits 4 to rotate.

[0032] Figures 1 to 4 The power shaft 2 shown is compatible with a pig snout motor. The pig snout motor features specially designed heat dissipation holes to help it dissipate heat more effectively, preventing performance degradation or damage caused by overheating. It also ensures normal operation even in harsh environments, making the power source of the power shaft 2 more stable. Three adjustment devices 5 are located at three edges of the lower end of the mounting bracket 1. Two of these adjustment devices 5 are symmetrical, and one is perpendicular to the other two. This arrangement of the three adjustment devices 5 allows for multi-directional adjustment of the three drill bits 4, improving their adaptability and enabling the handling of L-shaped, T-shaped, and other multi-dimensional hole layouts.

[0033] Figures 1 to 4The adjustment device 5 shown includes a fixed plate 51, a lead screw 52, ​​an operating block 53, an adjustment plate 54, a connecting piece 5656, and a T-shaped groove 55 opened at the bottom of the placement frame 1. The fixed plate 51 is set at the bottom of the placement frame 1. The operating block 53 drives the bolt to move inside the fixed plate 51. The lead screw 52 drives the adjustment plate 54 to move in the T-shaped groove 55 at the bottom of the placement frame 1. The adjustment plate 54 is connected to the drive shaft 3 and the drill bit 4 through the connecting piece to adjust the spacing of the drill bit 4. When it is necessary to change the drilling spacing, rotate the operating block 53, so that the lead screw 52 fixed on one side of the operating block 53 rotates inside the fixed plate 51 fixed on the surface of the placement frame 1. Then, the adjusting plate 54 threaded to the surface of the lead screw 52 will move along the T-shaped groove 55 opened at the bottom of the lead screw 52 and the placement frame 1. Then, the position of the drill bit 4 and the drive shaft 3 connected to the surface of the adjusting plate 54 through the connector is adjusted, so that the spacing of the holes drilled by the subsequent drill bit 4 is adjusted. By using the adjusting device 5, the spacing between the drill bits 4 can be adjusted, and the drilling spacing can be switched. The hole spacing switching time of the equipment is less than two minutes, and the processing adaptability can be improved. It can handle multi-dimensional hole layouts such as L-shaped and T-shaped holes.

[0034] Figures 1 to 4 The connecting component 56 shown includes a connecting block 561 and a rotating rod 563. The connecting block 561 is mounted on the surface of the adjusting plate 54. The rotating rod 563 is located on one side of the connecting block 561 and is connected to the drive shaft 3 on one side, allowing the angle between the drive shaft 3 and the connecting block 561 to be changed. The connecting block 561 is connected to the drill bit 4 on one side. When the adjusting plate 54 moves, the connecting block 561, which is fixed to the surface, will drive the drill bit 4 to move. The rotating rod 563, which is fixed to one side of the connecting block 561, will rotate with the drive shaft 3, changing the angle between the drive shaft 3 and the connecting block 561. This allows the adjusting plate 54 to adjust the distance between the drill bit 4.

[0035] Figures 1 to 4 The transmission shaft 3 shown is telescopic. The telescopic rod via the transmission shaft 3 prevents the transmission shaft 3 from jamming when the angle between the transmission shaft 3 and the connecting block 561 changes, thus allowing for subsequent adjustment of the drill bit 4 spacing. The lead screw 52 has a lead of ≤2mm. Setting the lead screw 52's lead of ≤2mm improves its positioning accuracy, thereby improving the adjustment accuracy of the adjusting device 5. Several anti-slip protrusions are formed on the surface of the operating block 53 to increase its surface friction. These anti-slip protrusions make it easier for the operator to rotate the operating block 53.

[0036] Working Principle: When using the three-hole drill bag, the adjusting device 5 adjusts the spacing of the drill bits 4 to match the subsequent drilling spacing requirements. The power shaft 2 on one side of the mounting frame 1 is driven by a motor, which in turn drives the drill bits 4 to rotate via the transmission shaft 3. When the drilling spacing needs to be changed, the operating block 53 is rotated, causing the lead screw 52 fixed on one side of the operating block 53 to rotate inside the fixing plate 51 fixed to the surface of the mounting frame 1. The adjusting plate 54, threaded onto the lead screw 52, ​​moves along the T-slot 55 at the bottom of the mounting frame 1. The drill bits 4 and transmission shaft 3, connected via connectors on the surface of the adjusting plate 54, are then positioned, adjusting the spacing of the holes drilled by the subsequent drill bits 4. By using the adjusting device 5, the spacing between the drill bits 4 can be adjusted, completing the switching of drilling spacing. This reduces the hole spacing switching time to less than two minutes and improves processing adaptability, handling L-shaped, T-shaped, and other multi-dimensional hole layouts.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the disclosed technical content and apply them to other fields. However, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, shall still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A three-hole drill set with freely adjustable center distance comprising a holder (1) and drill bits (4), characterized in that: The upper end of the placement frame (1) is provided with several power shafts (2), one side of which is connected to a transmission shaft (3). The transmission shaft (3) drives the drill bit (4) to rotate. The lower end of the placement frame (1) is provided with three adjustment devices (5), which adjust the spacing between the drill bits (4).

2. The three-hole drill pack of claim 1, wherein: The power shaft (2) can be adapted to a pig snout motor.

3. A three-hole drill pack with free-adjustable center distance according to claim 2, characterized in that: The three adjustment devices (5) are located at three edges at the lower end of the placement frame (1), with two adjustment devices (5) being symmetrical to each other and one adjustment device (5) being perpendicular to the other two adjustment devices (5).

4. The three-hole drill pack of claim 3, wherein: The adjustment device (5) includes a fixed plate (51), a lead screw (52), an operating block (53), an adjustment plate (54), a connecting piece (56), and a T-shaped groove (55) opened at the bottom of the placement frame (1). The fixed plate (51) is set at the bottom of the placement frame (1). The operating block (53) drives the bolt to move inside the fixed plate (51). The lead screw (52) drives the adjustment plate (54) to move in the T-shaped groove (55) at the bottom of the placement frame (1). The adjustment plate (54) is connected to the transmission shaft (3) and the drill bit (4) through the connecting piece to adjust the spacing of the drill bit (4).

5. A three-hole drill pack with free-adjustable center-to-center distance according to claim 4, characterized in that: The connector (56) includes a connecting block (561) and a rotating rod (563). The connecting block (561) is disposed on the surface of the adjusting plate (54). The rotating rod (563) is provided on one side of the connecting block (561). One side of the rotating rod (563) is connected to the transmission shaft (3), so that the angle between the transmission shaft (3) and the connecting block (561) can be changed. One side of the connecting block (561) is connected to the drill bit (4).

6. A three-hole drill pack with free-adjustable center-to-center distance according to claim 5, characterized in that: The drive shaft (3) can extend and retract.

7. A three-hole drill pack with free-adjustable center-to-center distance according to claim 6, characterized in that: The lead of the lead screw (52) is ≤2mm.

8. The three-hole drill pack of claim 4, wherein: The surface of the operating block (53) has several anti-slip protrusions, which increase the surface friction of the operating block (53).

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