A boring bar support device for a boring machine

Abstract

This utility model discloses a boring bar support device for a boring machine, relating to the field of boring machining technology. The support base has a through-hole at the center of its end face for installing a rotating bearing. Several support rods are evenly distributed circumferentially around the support base on its outer side. Each support rod has an axially aligned mounting groove that matches a movable rod. An adjusting screw, axially aligned with the mounting groove and extending beyond the groove, is rotatably mounted on the bottom surface of the mounting groove. The movable rod has an adjusting screw hole that passes through it and threadedly engages with the adjusting screw. A clamping rod perpendicular to the movable rod is located on the side of the movable rod furthest from the support base and corresponding to the end face of the support base. This utility model allows workers to easily adapt and adjust the device according to the workpiece size during installation, providing strong support for the subsequent stable support of the boring bar and greatly facilitating disassembly.

Description

Technical Field

[0001] This utility model relates to the field of boring processing technology, and in particular to a boring bar support device for a boring machine. Background Technology

[0002] During the boring process of a boring machine (especially for boring bars with a large length-to-diameter ratio), the boring bar is affected by radial cutting force, which causes the overhanging part to bend and deform, affecting the coaxiality and roundness of the hole. Therefore, a cross support bracket needs to be installed on the boring bar for support during the boring process. Through the multi-point support of the cross support bracket, the overhanging length of the boring bar can be significantly reduced, the bending stiffness can be improved, and the machining stability can be ensured.

[0003] Existing cross support brackets are as per the instruction manual. Figure 1 As shown, the support includes a support base 1, a support rod 4, a movable rod 2, and a clamping rod 1. Several support rods 4 are evenly distributed around the outer side of the support base 6. Both the movable rod 2 and the support rod 4 are provided with several mounting screw holes 5 spaced apart along their axial direction, and mounting bolts 3 are provided in the corresponding mounting screw holes 5. The clamping rod 1 is located at the end of the movable rod 2. The existing cross support frame still has the following shortcomings in actual use:

[0004] 1. Because the mounting screw hole 5 is fixed, the distance between the two clamping rods 1 can only be adjusted to a fixed value. This not only limits the applicability of the cross support frame, but also fails to effectively guarantee the centering and positioning support of the boring bar and the workpiece.

[0005] 2. During the adjustment of the cross support frame, it is necessary not only to repeatedly disassemble and install the bolts 3, but also to manually hold the movable rod to calibrate the mounting screw holes 5. This operation is time-consuming and laborious, and places a heavy burden on the staff.

[0006] 3. After repeated use, the clamping rod 1 undergoes multiple welding and slag cleaning processes, which can easily lead to uneven contact between the cross support frame and the workpiece, thus affecting the stable clamping of the workpiece. The clamping rod 1 also cannot be easily disassembled, replaced, or repaired.

[0007] Therefore, there is an urgent need for a boring bar support device that can overcome the above-mentioned shortcomings. Utility Model Content

[0008] To overcome the shortcomings of the prior art, this utility model discloses a boring bar support device for a boring machine. During the installation process, this utility model allows the operator to make convenient and adaptive adjustments according to the workpiece size, providing strong support for the subsequent stable support of the boring bar, and also greatly facilitating the operator's disassembly operation.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A boring bar support device for a boring machine includes a support base, a support rod, and a movable rod. The support base has a through-hole at its center for rotating the boring bar. Several support rods are evenly distributed circumferentially around the support base on its outer side. Each support rod has an axially aligned mounting groove that matches the movable rod. An adjusting screw, axially aligned with the mounting groove and extending beyond the groove, is rotatably mounted on the bottom surface of the mounting groove. The movable rod has an adjusting screw hole that passes through the movable rod and threadedly engages with the adjusting screw. The movable rod is inserted into the mounting groove and its height is adjusted by the rotation of the adjusting screw. A clamping rod perpendicular to the movable rod is located on the side of the movable rod furthest from the support base and corresponding to the support base's end face.

[0011] Furthermore, the length of the adjusting screw is greater than the sum of the lengths of the support rod and the movable rod.

[0012] Furthermore, a limiting groove is provided on one side of the adjusting screw rod body along the axial direction of the adjusting screw rod. A movable ring that can slide along the axial direction of the movable rod is sleeved on the adjusting screw rod body located at the upper part of the movable rod. The inner ring surface of the movable ring is provided with a limiting protrusion that matches the limiting groove. A limiting insert is provided on the opposite surface of the movable ring and the movable rod. The end face of the movable rod away from the support base is provided with limiting holes that are evenly distributed around the adjusting screw rod and match the limiting insert.

[0013] Furthermore, a handle is provided at the end of the adjusting screw away from the support.

[0014] Furthermore, a welding block is detachably installed at the end of the clamping rod away from the movable rod.

[0015] Furthermore, the end of the clamping rod facing the support seat has a groove that matches the welding block. The bottom surface of the groove has a through hole that passes through the clamping rod. The side of the welding block corresponding to the bottom surface of the groove has a fixing screw that passes through the through hole. The fixing screw has a fixing nut for fixing the welding block.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the screw to drive the movable rod for lifting and lowering adjustment, the traditional bolt fixing adjustment method is avoided, which not only greatly increases the accuracy of the lifting and lowering adjustment of the movable rod, but also effectively reduces the operation difficulty for the staff.

[0017] By setting a limit ring, the adjusting screw can be limited and fixed after the movable rod is adjusted in height, which effectively avoids displacement of the movable rod caused by accidental rotation of the adjusting screw, and effectively ensures the clamping stability of the subsequent clamping rod.

[0018] By setting up detachable welding blocks, the traditional method of directly welding the clamping rod to the workpiece is avoided, thus preventing wear and tear on the clamping rod. This not only provides strong support for the stable clamping of the workpiece by the clamping rod, but also allows the support base, support rod, movable rod, and clamping rod to be disassembled first after the boring process is completed, making it convenient for workers to remove and clean the welding blocks and weld points on the workpiece.

[0019] During installation and use, this invention not only allows workers to make convenient and adaptive adjustments according to the workpiece size, providing strong support for the subsequent stable support of the boring bar, but also greatly facilitates the subsequent disassembly operation and significantly extends its service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the existing support structure;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the support rod structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the movable ring structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the movable rod structure of this utility model.

[0025] In the diagram: 1. Clamping rod; 2. Movable rod; 3. Mounting bolt; 4. Support rod; 5. Mounting screw hole; 6. Support base; 7. Through port; 8. Adjusting screw; 9. Mounting groove; 10. Rotary handle; 11. Limiting groove; 12. Movable ring; 13. Limiting protrusion; 14. Limiting insertion rod; 15. Through hole; 16. Limiting insertion hole; 17. Adjusting screw hole; 18. Groove; 19. Fixing nut; 20. Fixing screw; 21. Welding block. Detailed Implementation

[0026] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0027] Please refer to the instruction manual appendix. Figure 2-5 This utility model provides a technical solution:

[0028] Example 1: A boring bar support device for a boring machine includes a support base 6. A through-hole 7, passing through the support base 6 and used for rotating and supporting the boring bar, is provided in the middle of the end face of the support base 6. Specifically, a rotating bearing is installed in the through-hole 7 to achieve rotational support for the boring bar. Several support rods 4 are evenly distributed around the circumference of the support base 6 on the outer side. The end face of each support rod 4 has a mounting groove 9 arranged axially along the support rod 4 and adapted to a movable rod 2. An adjusting screw 8, arranged axially along the mounting groove 9, is rotatably mounted on the bottom surface of the mounting groove 9. The end face of the movable rod 2 is provided with… There is an adjusting screw hole 17 that passes through the movable rod 2 and is threadedly engaged with the adjusting screw 8. The movable rod 2 is inserted into the mounting groove 9 and is driven to lift and lower by the rotation of the adjusting screw 8. In order to meet the lifting and lowering adjustment of the movable rod 2 by the adjusting screw 8, the length of the adjusting screw 8 is greater than the sum of the lengths of the support rod 4 and the movable rod 2. In order to facilitate the rotation of the adjusting screw 8, a handle 10 is provided at the end of the adjusting screw 8 away from the support seat 6. A clamping rod 1 perpendicular to the movable rod 2 is provided on the side of the movable rod 2 away from the support seat 6 and corresponding to the end face of the support seat 6.

[0029] When supporting the boring bar, the operator adjusts the spacing between the corresponding clamping rods 1 by rotating the adjusting screw 8 according to the size of the workpiece. Then, the device is clamped on the workpiece by multiple clamping rods 1. The support seat 6 is then made to coaxially correspond with the boring hole position of the workpiece by fine adjustment of the movable rod 2. Finally, the clamping rods 1 are welded and fixed to the workpiece. The operator can then install the rotating bearing and the boring bar in sequence in the through port 7 to achieve rotational support for the boring bar.

[0030] In Example 2, during the rotational support of the boring bar, if deep hole machining or large-diameter boring is being performed, the device needs to withstand a large cutting force. This can easily cause the adjusting screw 8 to rotate due to vibration, which in turn causes the movable rod 2 to shift, affecting the rigidity of the overall structure. In severe cases, it can also cause vibration marks or dimensional deviations on the machined surface. To prevent accidental rotation of the adjusting screw 8, a limiting groove 11 is provided on one side of the adjusting screw 8 along the axial direction of the adjusting screw 8. A movable ring 12 that can slide along the axial direction of the movable rod 2 is fitted on the adjusting screw 8 at the upper part of the movable rod 2. The inner ring surface of the movable ring 12 is provided with a limiting protrusion 13 that matches the limiting groove 11. A limiting insert 14 is provided on the opposite surface of the movable ring 12 and the movable rod 2. The end face of the movable rod 2 away from the support seat 6 is provided with a groove 13 that is evenly distributed around the adjusting screw 8 and is aligned with the limiting groove 11. The limiting insertion rod 14 is matched with the limiting insertion hole 16. After the adjusting screw 8 is rotated to adjust the movable rod 2 to the appropriate position, the operator only needs to slide the movable ring 12 down the adjusting screw 8 until the limiting insertion rod 14 at the lower part of the movable ring 12 is inserted into the limiting insertion hole 16 on the end face of the movable rod 2. Through the insertion of the limiting insertion rod 14 and the limiting insertion hole 16, the movable ring 12 cannot rotate. Then, by using the locking of the limiting protrusion 13 on the inner ring surface of the movable ring 12 and the limiting groove 11, the adjusting screw 8 is limited and fixed. While preventing the adjusting screw 8 from rotating, the movable rod 2 is also limited and fixed. By increasing the number of limiting insertion holes 16, it can be ensured that the limiting insertion rod 14 can also be smoothly inserted into the corresponding limiting insertion hole 16 after rotating with the adjusting screw 8. Even if there is a mismatch, it can be made to match by fine adjustment of the adjusting screw 8.

[0031] In Example 3, during repeated use of this device, welding is required between the clamping rod 1 and the workpiece. This not only requires workers to clean the welding slag on the clamping rod 1, but also easily leads to the contact surface between the clamping rod 1 and the workpiece not being kept flat, affecting the subsequent stable clamping of the workpiece, and also affecting the disassembly and assembly efficiency. Therefore, a welding block 21 is detachably installed at the end of the clamping rod 1 away from the movable rod 2. Specifically, a groove 18 adapted to the welding block 21 is provided on the side of the end of the clamping rod 1 facing the support seat 6. A through hole 15 penetrating the clamping rod 1 is provided on the bottom surface of the groove 18. A fixing screw 20 passing through the through hole 15 is provided on the side of the welding block 21 corresponding to the bottom surface of the groove 18. A fixing nut 19 for fixing the welding block 21 is provided on the fixing screw 20.

[0032] During welding, the device can be fixed by welding the welding block 21 to the workpiece. When the boring is completed and the device is disassembled, simply remove the fixing nut 19, slide the movable ring 12 upward and rotate the adjusting screw 8 to drive the clamping rod 1 to detach from the welding block 21 through the movable rod 2. Afterward, only the weld joint of the welding block 21 needs to be disassembled and cleaned separately. If the welding block 21 becomes deformed or uneven after repeated welding, the welding block 21 can be replaced directly without replacing the clamping rod 1.

[0033] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A boring bar support device for a boring machine, comprising a support base (6), a support rod (4), and a movable rod (2), characterized in that: The support base (6) has a through-hole (7) in the middle of its end face for rotating the support boring bar. The support base (6) has several support rods (4) evenly distributed around its circumference. The support rod (4) has an mounting groove (9) that is axially arranged along the support rod (4) and adapted to the movable rod (2). The bottom surface of the mounting groove (9) is rotatably mounted with an adjusting screw (8) that is axially arranged along the mounting groove (9) and extends to the outside of the mounting groove (9). The movable rod (2) has an adjusting screw hole (17) that is threaded through the movable rod (2) and threaded with the adjusting screw (8). The movable rod (2) is inserted into the mounting groove (9) and is driven to lift and adjust by the rotation of the adjusting screw (8). The movable rod (2) is far from the support base (6) and has a clamping rod (1) perpendicular to the movable rod (2) on one side of its end that is opposite to the end face of the support base (6).

2. The boring bar support device for a boring machine according to claim 1, characterized in that: The length of the adjusting screw (8) is greater than the sum of the lengths of the support rod (4) and the movable rod (2).

3. A boring bar support device for a boring machine according to claim 2, characterized in that: The adjusting screw (8) has a limiting groove (11) on one side of its body, which is arranged along the axial direction of the adjusting screw (8). The adjusting screw (8) located on the upper part of the movable rod (2) has a movable ring (12) that can slide along the axial direction of the movable rod (2). The inner ring surface of the movable ring (12) has a limiting protrusion (13) that matches the limiting groove (11). The movable ring (12) and the movable rod (2) have a limiting insert (14) on their opposite surfaces. The end face of the movable rod (2) away from the support seat (6) has a limiting insertion hole (16) that is evenly distributed around the adjusting screw (8) and matches the limiting insert (14).

4. A boring bar support device for a boring machine according to claim 3, characterized in that: The adjusting screw (8) has a handle (10) at the end away from the support (6).

5. A boring bar support device for a boring machine according to claim 1, characterized in that: A welding block (21) is detachably installed at the end of the clamping rod (1) away from the movable rod (2).

6. A boring bar support device for a boring machine according to claim 5, characterized in that: The clamping rod (1) has a groove (18) on the side facing the support base (6) that is compatible with the welding block (21). The bottom surface of the groove (18) has a through hole (15) that passes through the clamping rod (1). The welding block (21) has a fixing screw (20) that passes through the through hole (15) on the side corresponding to the bottom surface of the groove (18). The fixing screw (20) has a fixing nut (19) for fixing the welding block (21).

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