A gantry beam Y-axis screw rod auxiliary support structure

Abstract

The present application relates to a gantry crossbeam Y-axis lead screw auxiliary support structure, and relates to the field of mechanical processing technology. It includes a crossbeam and a boring and milling tool holder, two mounting seats are provided on the crossbeam, a horizontally arranged lead screw is provided between the two mounting seats, the end of the lead screw is rotatably connected to the corresponding mounting seat, one of the mounting seats is provided with a rotating motor, the output end of the rotating motor is coaxially fixed with one end of the lead screw, the rotating motor is used to drive the lead screw to rotate, the boring and milling tool holder is sleeved on the lead screw and is threadedly connected to the lead screw, an auxiliary support portion is provided on the crossbeam, the auxiliary support portion abuts against the side wall of the lead screw, and the auxiliary support portion is used to support the lead screw. The present application has the effect that the lead screw is not easily deformed.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing, and in particular to a gantry beam Y-axis screw rod auxiliary support structure. Background Art

[0002] The gantry boring and milling machine is a mechanical processing equipment that integrates advanced mechanical, electrical, and hydraulic technologies. It is suitable for semi-finishing and finishing in industries such as aviation, heavy machinery, locomotives, shipbuilding, power generation, machine tools, automobiles, printing, and molds. It can also be used for rough processing. The overall structure of the gantry boring and milling machine consists of a gantry frame. The gantry frame is composed of a rigid frame consisting of double columns, a movable crossbeam, a connecting beam, a transverse slide, and a milling head slide. The crossbeam moves up and down along the column guide rail (W axis). A vertical high-power multifunctional slide-type boring and milling head is installed on the crossbeam. The boring and milling head slide moves left and right (Y axis) and up and down (Z axis) along the crossbeam guide rail. The gantry frame moves longitudinally along the bed (X axis).

[0003] In the related art, the Chinese patent with publication number CN2721303Y discloses a five-axis linkage CNC fixed beam gantry boring and milling machine. It includes a bed, a column, a crossbeam, a workbench, a button station, an electric cabinet, a slide mounted on the crossbeam, and a main milling head mounted on the slide. The main milling head is a vertical ram frame structure, and one of a double rotary swing milling head, a vertical milling head or a universal milling head is installed at its lower end. It has multiple functions such as milling, boring, drilling, tapping, and countersinking.

[0004] The workbench and X-axis transmission device are fixed on the bed. The X-axis transmission device can drive the workbench to move horizontally forward and backward along the bed guide rail (X-axis); the slide and Y-axis transmission device are fixed on the crossbeam, driving the sliding pillow type milling head to move horizontally left and right along the crossbeam guide rail (Y-axis); the main milling head is installed on the slide and moves vertically along the slide guide rail (Z-axis).

[0005] The Y-axis transmission device uses a motor to drive the screw to rotate, and then the screw drives the sliding pillow type milling head to move horizontally left and right along the crossbeam guide rail. If the length of the crossbeam is too long, when the boring and milling tool holder slides to the middle of the screw, the screw will be deformed under the action of the gravity of the boring and milling tool holder, affecting the normal use of the fixed-beam gantry boring and milling machine, so it needs to be improved. Utility Model Content

[0006] In order to improve the problem that the lead screw is easily deformed under the gravity of the boring and milling tool holder, which affects normal use, the present application provides a gantry beam Y-axis lead screw auxiliary support structure.

[0007] The present application provides a gantry beam Y-axis screw rod auxiliary support structure adopts the following technical solution:

[0008] A gantry crossbeam Y-axis lead screw auxiliary support structure comprises a crossbeam and a boring and milling tool holder, wherein the crossbeam is provided with two mounting seats, a horizontally arranged lead screw is provided between the two mounting seats, the ends of the lead screw are rotatably connected to the corresponding mounting seats, one of the mounting seats is provided with a rotating motor, the output end of the rotating motor is coaxially fixed with one end of the lead screw, the rotating motor is used to drive the lead screw to rotate, the boring and milling tool holder is sleeved on the lead screw and threadedly connected with the lead screw, an auxiliary support portion is provided on the crossbeam, the auxiliary support portion abuts against the side wall of the lead screw, and the auxiliary support portion is used to support the lead screw.

[0009] By adopting the above technical solution, when in use, the motor is driven to drive the lead screw to rotate. Since the lead screw is threadedly connected to the boring and milling tool holder, the boring and milling tool holder is restricted by the crossbeam, so that the boring and milling tool holder will not rotate with the rotation of the lead screw, so that the boring and milling tool holder will eventually move along the length direction of the lead screw. At the same time, the lead screw rotates on the auxiliary support part, and the auxiliary support part supports the lead screw, so that the lead screw is not easily deformed under the action of gravity of the boring and milling tool holder.

[0010] Optionally, a slide rail is provided on the crossbeam, the slide rail is arranged along the length direction of the lead screw, the slide rail is embedded in the boring and milling tool holder, and the boring and milling tool holder can move on the slide rail along the length direction of the slide rail.

[0011] By adopting the above technical solution, when the lead screw rotates and drives the boring and milling tool holder to move, the boring and milling tool holder slides on the slide rail, and the slide rail guides the boring and milling tool holder, so that the boring and milling tool holder will not deviate during the movement, thereby increasing the stability of the movement of the boring and milling tool holder. At the same time, the slide rail also provides support for the boring and milling tool holder, reduces the load on the lead screw, and makes the lead screw less likely to deform.

[0012] Optionally, two rollers are provided on the top of the auxiliary support part, and the rollers are arranged along the length direction of the screw. The ends of the rollers are rotatably connected to the auxiliary support part, the two rollers are flush, the screw is located between the two rollers, and the side walls of the screw are abutted against the side walls of the rollers.

[0013] By adopting the above technical solution, when the screw rotates, the side wall of the screw slides on the roller, exerting sliding friction on the roller. At this time, the roller is forced to rotate about its own central axis, thereby converting sliding friction into rolling friction, reducing the friction between the auxiliary support part and the screw, making the screw less likely to be damaged by friction, and extending the service life of the screw.

[0014] Optionally, a guide rail is fixed on the crossbeam along the length direction of the lead screw, a guide block is provided on the auxiliary support portion, a guide groove is provided on the guide block, the guide rail is inserted in the guide groove, and the guide block can move on the guide rail.

[0015] By adopting the above technical solution, when the boring and milling tool holder moves on the lead screw, the bearing point on the lead screw keeps changing. At this time, the auxiliary support part is moved to make the guide block move on the guide rail, and the side wall of the guide rail abuts against the inner wall of the guide groove, which plays a role of limiting the guide, so that the auxiliary support part always keeps in abutment with the lead screw during the movement, that is, the auxiliary support part can move to any position of the lead screw according to the position of the boring and milling tool holder to support it, specifically to support the bearing point, so as to more effectively prevent the lead screw from deforming.

[0016] Optionally, the auxiliary support portion includes two support blocks, the boring and milling cutter holder is arranged between the two support blocks, and the boring and milling cutter holder can abut against the side walls of the support blocks, and the guide block is arranged on the support block.

[0017] By adopting the above technical solution, when the boring and milling tool holder moves on the lead screw and abuts against the support block, it will push the support block to move synchronously, so that the support block can support the position of the boring and milling tool holder on the lead screw, that is, the support block can automatically support the bearing point of the lead screw, which is convenient to operate.

[0018] Optionally, the two support blocks are connected by two connecting rods, and the two connecting rods are arranged along the length direction of the lead screw.

[0019] By adopting the above technical solution, when the boring and milling tool holder drives one of the support blocks to move, the other support block will also move synchronously, so that both sides of the boring and milling tool holder on the lead screw can always be supported, which improves the stability of the lead screw structure. At the same time, because the two support blocks move synchronously, when the boring and milling tool holder moves in opposite directions, it can pull the support block originally pushed to the mounting seat to automatically reset. In addition, the two connecting rods make the structure more stable, ensuring that the two support blocks are flush and not prone to tilting and flipping.

[0020] Optionally, the support block includes an upper mounting block and a lower positioning block, the upper mounting block is located above the lower positioning block, the roller is arranged on the upper mounting block, and the guide block is located on the lower positioning block, the upper mounting block and the lower positioning block are connected by a connecting plate, and the connecting plate is fixed to the lower positioning block by a positioning bolt, and a plurality of adjustment holes are opened on the connecting plate, and the plurality of adjustment holes are evenly arranged along the length direction of the lead screw, and an adjusting rod is passed through the adjusting hole, and the adjusting rod is threadedly connected to the inner wall of the adjusting hole, and one end of the adjusting rod can abut against the upper mounting block.

[0021] By adopting the above technical solution, the adjusting rod is moved in a direction away from the upper mounting block so that the adjusting rod is separated from the side wall of the upper mounting block. At this time, the upper mounting block loses its restriction, so that the upper mounting block can move on the lower positioning block along the length direction of the lead screw, thereby changing the distance between the two supporting points. When the distance adjustment is completed, the adjusting rod is moved in the direction of the upper mounting block until the end of the adjusting rod abuts against the upper mounting block. The adjusting rod applies an extruding force to the upper mounting block so that the connecting plate is fixed to the upper mounting block, thereby achieving the fixation of the upper mounting block on the lower positioning block.

[0022] Optionally, an anti-collision block is provided on the side wall of the lower positioning block, and the anti-collision block can abut against the mounting seat.

[0023] By adopting the above technical solution, when the boring and milling tool holder drives the support block to move to the end of the screw, the anti-collision block abuts against the mounting seat, and the anti-collision block plays a protective role, so that the lower positioning block will not directly collide with the mounting seat, thereby making the lower positioning block not easily damaged, thereby extending the service life of the support block.

[0024] In summary, the present application includes at least one of the following beneficial effects:

[0025] 1. When in use, the motor is driven to drive the lead screw to rotate. Since the lead screw is threadedly connected to the boring and milling tool holder, the boring and milling tool holder is restricted by the crossbeam, so that the boring and milling tool holder will not rotate with the rotation of the lead screw, so that the boring and milling tool holder will eventually move along the length direction of the lead screw. At the same time, the lead screw rotates on the auxiliary support part, and the auxiliary support part supports the lead screw, so that the lead screw is not easy to deform under the action of the gravity of the boring and milling tool holder;

[0026] 2. When the lead screw rotates and drives the boring and milling tool holder to move, the boring and milling tool holder slides on the slide rail, and the slide rail guides the boring and milling tool holder, so that the boring and milling tool holder will not deviate during the movement, increasing the stability of the boring and milling tool holder. At the same time, the slide rail also provides support for the boring and milling tool holder, reducing the load of the lead screw, making the lead screw less likely to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the Y-axis screw rod auxiliary support structure of the gantry beam in the embodiment of the present application;

[0028] Figure 2 This is a structural cross-sectional view of the Y-axis screw rod auxiliary support structure of the gantry beam of the embodiment of the present application;

[0029] Figure 3 It is a structural schematic diagram of the auxiliary support part.

[0030] In the figure: 10, crossbeam; 11, slide rail; 12, guide rail; 20, boring and milling tool holder; 30, mounting seat; 31, lead screw; 32, rotating motor; 40, auxiliary support part; 41, support block; 411, upper mounting block; 412, lower positioning block; 50, roller; 60, guide block; 61, guide groove; 70, connecting rod; 80, connecting plate; 81, adjustment hole; 90, adjustment rod; 110, anti-collision block. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses a gantry beam Y-axis screw rod auxiliary support structure. Figure 1 and Figure 2 The gantry crossbeam Y-axis screw auxiliary support structure includes a crossbeam 10 and a boring and milling tool holder 20. Two mounting seats 30 are fixed on the crossbeam 10. The two mounting seats 30 are flush. A horizontally arranged screw 31 is arranged between the two mounting seats 30. The ends of the screw 31 are rotatably connected to the corresponding mounting seats 30, so that the screw 31 is arranged along the length direction of the crossbeam 10. A rotating motor 32 is installed on one of the mounting seats 30 by bolts. The output end of the rotating motor 32 passes through the mounting seat 30 and is coaxially fixed with one end of the screw 31. The rotating motor 32 is used to drive the screw 31 to rotate with the central axis of the screw 31 as the axis.

[0033] Reference Figure 1 and Figure 2 The boring and milling tool holder 20 is sleeved on the lead screw 31 and is threadedly connected to the lead screw 31. Two slide rails 11 are fixed on the crossbeam 10 by bolts. The two slide rails 11 are respectively located on the upper and lower sides of the lead screw 31. The slide rails 11 are arranged along the length direction of the lead screw 31. The slide rails 11 are embedded in part of the structure of the boring and milling tool holder 20, and the boring and milling tool holder 20 can slide in the slide rails 11.

[0034] When in use, the motor 32 is driven to rotate, and the lead screw 31 is driven to rotate. Since the lead screw 31 is threadedly connected to the boring and milling tool holder 20, the boring and milling tool holder 20 is restricted by the crossbeam 10, so that the boring and milling tool holder 20 will not rotate with the rotation of the lead screw 31, so that the boring and milling tool holder 20 finally moves along the length direction of the lead screw 31. At the same time, the boring and milling tool holder 20 slides on the slide rail 11, and the slide rail 11 guides the boring and milling tool holder 20, so that the boring and milling tool holder 20 will not deviate during the movement, thereby increasing the stability of the movement of the boring and milling tool holder 20. At the same time, the slide rail 11 also provides support for the boring and milling tool holder 20, reduces the load of the lead screw 31, and makes the lead screw 31 not easily deformed.

[0035] Reference Figure 1 and Figure 2An auxiliary support portion 40 is provided on the crossbeam 10, and the auxiliary support portion 40 includes two support blocks 41. The two support blocks 41 are arranged along the length direction of the lead screw 31, and the two support blocks 41 are respectively located on both sides of the boring and milling tool holder 20, and the top of the support block 41 abuts against the lower surface of the lead screw 31 for supporting the lead screw 31.

[0036] Reference Figure 1 and Figure 3 The support block 41 includes an upper mounting block 411 and a lower positioning block 412. The upper mounting block 411 is located above the lower positioning block 412 and is connected by a connecting plate 80. Two rollers 50 are provided on the top wall of the upper mounting block 411. The rollers 50 are arranged along the length direction of the lead screw 31. The ends of the rollers 50 are rotatably connected to the auxiliary support portion 40. The two rollers 50 are flush. The lead screw 31 is located between the two rollers 50, and the side walls of the lead screw 31 abut against the side walls of the rollers 50.

[0037] When the screw 31 rotates, the side wall of the screw 31 slides on the roller 50, applying a sliding friction force to the roller 50. At this time, the roller 50 is forced to rotate about its own central axis, thereby converting the sliding friction into rolling friction, reducing the friction force between the auxiliary support part 40 and the screw 31, making it less likely for the screw 31 to be damaged by friction, thereby extending the service life of the screw 31.

[0038] Reference Figure 1 and Figure 3 , wherein a bolt is passed through the connecting plate 80, and the bolt is threadedly connected to the lower positioning block 412 to achieve the fixation of the connecting plate 80 and the lower positioning block 412, and a plurality of adjustment holes 81 are opened on the connecting plate 80, and the plurality of adjustment holes 81 are evenly distributed along the length direction of the lead screw 31, and an adjustment rod 90 is inserted into the adjustment hole 81, and the adjustment rod 90 is threadedly connected to the inner wall of the adjustment hole 81, and one end of the adjustment rod 90 can abut against the side wall of the upper mounting block 411 to achieve the fixation of the connecting plate 80 and the upper mounting block 411.

[0039] The adjusting rod 90 is moved in a direction away from the upper mounting block 411 so that the adjusting rod 90 is separated from the side wall of the upper mounting block 411. At this time, the upper mounting block 411 loses its restriction, so that the upper mounting block 411 can move on the lower positioning block 412 along the length direction of the lead screw 31, thereby changing the distance between the two supporting points. When the distance adjustment is completed, the adjusting rod 90 is moved in the direction of the upper mounting block 411 until the end of the adjusting rod 90 abuts against the upper mounting block 411. The adjusting rod 90 applies an extruding force to the upper mounting block 411, so that the connecting plate 80 is fixed to the upper mounting block 411, that is, the upper mounting block 411 is fixed to the lower positioning block 412.

[0040] Reference Figure 1 and Figure 3, wherein the two support blocks 41 are connected by two connecting rods 70, the two ends of the connecting rods 70 are respectively fixed to the corresponding lower positioning blocks 412, the two connecting rods 70 are parallel to each other, and are arranged along the length direction of the lead screw 31. A guide block 60 is fixed on the side wall of the lower positioning block 412 close to the crossbeam 10, and a guide groove 61 is opened on the guide block 60 along the length direction of the lead screw 31. A guide rail 12 is fixed on the crossbeam 10, the guide rail 12 is located below the lead screw 31, and the guide rail 12 is arranged along the length direction of the lead screw 31. The guide rail 12 is relatively inserted in the guide groove 61, so that the guide block 60 can move on the guide rail 12. The boring and milling tool holder 20 can abut against the side wall of the upper mounting block 411 and push the entire support block 41 to move on the guide rail 12.

[0041] When the boring and milling tool holder 20 moves on the lead screw 31, the bearing point on the lead screw 31 changes continuously. When the boring and milling tool holder 20 moves to abut against one of the support blocks 41 and pushes the support block 41 to move, the other support block 41 will also move synchronously. During this process, the side wall of the guide rail 12 abuts against the inner wall of the guide groove 61, which plays a role in limiting the guide, so that the roller 50 on the upper mounting block 411 always maintains a state of abutting against the lead screw 31 during the movement, so that the two sides of the position of the boring and milling tool holder 20 on the lead screw 31 can always be supported, that is, the changed bearing point can be accurately supported, and the lead screw 31 can be more effectively prevented from deforming. At the same time, because the two support blocks 41 move synchronously, when the boring and milling tool holder 20 moves in opposite directions, it can pull the support block 41 that was originally pushed to the mounting seat 30 to automatically reset. And the two connecting rods 70 make the structure more stable, ensuring that the two support blocks 41 are flush and not prone to tilting and flipping.

[0042] Reference Figure 1 and Figure 3 The side wall of the lower positioning block 412 is fixed with an anti-collision block 110 by bolts, and the anti-collision block 110 can abut against the mounting seat 30. When the boring and milling tool holder 20 drives the support block 41 to move to the end of the lead screw 31, the anti-collision block 110 abuts against the mounting seat 30, and the anti-collision block 110 plays a protective role, so that the lower positioning block 412 will not directly collide with the mounting seat 30, so that the lower positioning block 412 is not easily damaged, and the service life of the support block 41 is extended.

[0043] The implementation principle of the Y-axis lead screw auxiliary support structure of the gantry crossbeam embodiment of the present application is as follows: when in use, the rotating motor 32 is driven to drive the lead screw 31 to rotate. Since the lead screw 31 is threadedly connected to the boring and milling tool holder 20, the boring and milling tool holder 20 is restricted by the crossbeam 10, so that the boring and milling tool holder 20 will not rotate with the rotation of the lead screw 31, so that the boring and milling tool holder 20 will eventually move along the length direction of the lead screw 31. At the same time, the lead screw 31 rotates on the auxiliary support part 40, and the auxiliary support part 40 supports the lead screw 31, so that the lead screw 31 is not easily deformed under the action of gravity of the boring and milling tool holder 20.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gantry beam Y-axis screw rod auxiliary support structure, characterized in that: The invention comprises a crossbeam (10) and a boring and milling tool holder (20), wherein two mounting seats (30) are arranged on the crossbeam (10), a horizontally arranged lead screw (31) is arranged between the two mounting seats (30), the end of the lead screw (31) is rotatably connected to the corresponding mounting seat (30), a rotating motor (32) is arranged on one of the mounting seats (30), the output end of the rotating motor (32) is coaxially fixed with one end of the lead screw (31), the rotating motor (32) is used to drive the lead screw (31) to rotate, the boring and milling tool holder (20) is sleeved on the lead screw (31) and is threadedly connected to the lead screw (31), and an auxiliary support portion (40) is arranged on the crossbeam (10), the auxiliary support portion (40) abuts against the side wall of the lead screw (31), and the auxiliary support portion (40) is used to support the lead screw (31).

2. The gantry beam Y-axis screw rod auxiliary support structure according to claim 1 is characterized in that: A slide rail (11) is provided on the crossbeam (10), the slide rail (11) is arranged along the length direction of the lead screw (31), the slide rail (11) is embedded in the boring and milling tool holder (20), and the boring and milling tool holder (20) can move on the slide rail (11) along the length direction of the slide rail (11).

3. The gantry beam Y-axis screw rod auxiliary support structure according to claim 1, characterized in that: Two rollers (50) are provided at the top of the auxiliary support portion (40), and the rollers (50) are arranged along the length direction of the lead screw (31). The ends of the rollers (50) are rotatably connected to the auxiliary support portion (40), and the two rollers (50) are flush. The lead screw (31) is located between the two rollers (50), and the side walls of the lead screw (31) are in contact with the side walls of the rollers (50).

4. The gantry beam Y-axis screw rod auxiliary support structure according to claim 3 is characterized in that: A guide rail (12) is fixed on the crossbeam (10) along the length direction of the lead screw (31); a guide block (60) is provided on the auxiliary support portion (40); a guide groove (61) is provided on the guide block (60); the guide rail (12) is inserted into the guide groove (61); and the guide block (60) can move on the guide rail (12).

5. The gantry beam Y-axis screw rod auxiliary support structure according to claim 4, characterized in that: The auxiliary support portion (40) comprises two support blocks (41), the boring and milling tool holder (20) is arranged between the two support blocks (41), and the boring and milling tool holder (20) can abut against the side wall of the support block (41), and the guide block (60) is arranged on the support block (41).

6. The gantry beam Y-axis screw rod auxiliary support structure according to claim 5, characterized in that: The two support blocks (41) are connected via two connecting rods (70), and the two connecting rods (70) are arranged along the length direction of the lead screw (31).

7. The gantry beam Y-axis screw rod auxiliary support structure according to claim 5, characterized in that: The support block (41) comprises an upper mounting block (411) and a lower positioning block (412); the upper mounting block (411) is located above the lower positioning block (412); the roller (50) is arranged on the upper mounting block (411); the guide block (60) is located on the lower positioning block (412); the upper mounting block (411) and the lower positioning block (412) are connected via a connecting plate (80); the connecting plate (80) is fixed to the lower positioning block (412) via positioning bolts; a plurality of adjustment holes (81) are formed on the connecting plate (80); the plurality of adjustment holes (81) are evenly arranged along the length direction of the lead screw (31); an adjustment rod (90) is passed through the adjustment hole (81); the adjustment rod (90) is threadedly connected to the inner wall of the adjustment hole (81); one end of the adjustment rod (90) can abut against the upper mounting block (411).

8. The gantry beam Y-axis screw rod auxiliary support structure according to claim 7, characterized in that: An anti-collision block (110) is provided on the side wall of the lower positioning block (412), and the anti-collision block (110) can abut against the mounting seat (30).

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