Box-in-box beam built-in lead screw driving mechanism

Abstract

The utility model provides a box-in-box beam built-in lead screw driving mechanism, and relates to the field of machine tool machining. The device comprises a cross beam and a ram, a sliding rail is fixedly arranged on the cross beam, a sliding block is fixedly arranged on the ram, the sliding block is arranged on the sliding rail in a sliding mode, an installation groove is formed in the cross beam, a lead screw is rotatably installed in the installation groove, the lead screw is sleeved with a nut seat in a threaded mode, the nut seat is fixedly connected with the ram, and a driving assembly is arranged between the lead screw and the cross beam. The machining method has the effect that the machining quality is not prone to being affected.

Description

Technical Field

[0001] The present application relates to the field of machine tool operation, and particularly to a screw drive mechanism built into the crossbeam of a box-in-box structure. Background Art

[0002] A heavy cutting machine tool is a metal processing equipment used for high-precision cutting of metal materials. It is usually equipped with high-precision cutting tools and measurement systems to ensure that the machined parts meet precise dimensional and shape requirements. Heavy cutting machine tools are widely used in the manufacturing industry, especially in fields that require high-precision parts, such as aerospace, automotive manufacturing, mold manufacturing, etc.

[0003] Currently, in the related art, a heavy cutting machine tool includes: a base, a crossbeam, and a ram. The crossbeam is slidably arranged on the base, and the ram is slidably arranged on the crossbeam through a gear and a rack. During operation, by controlling the rotation of the gear, the ram can be driven to move on the crossbeam.

[0004] However, in the above technology, driving the ram to move on the crossbeam through a rack and a gear generally requires the use of a gearbox motor. Therefore, the cost is high, and the driving force is uneven, resulting in low stability of the ram structure during processing and affecting the processing quality. Summary of the Utility Model

[0005] In order to improve the problems existing in the above technology, the present application provides a screw drive mechanism built into the crossbeam of a box-in-box structure.

[0006] The present application provides a screw drive mechanism built into the crossbeam of a box-in-box structure, adopting the following technical solutions:

[0007] A screw drive mechanism built into the crossbeam of a box-in-box structure includes: a crossbeam and a ram. A slide rail is fixedly arranged on the crossbeam, a slider is fixedly arranged on the ram, and the slider is slidably arranged on the slide rail. An installation groove is formed in the crossbeam, and a lead screw is rotatably installed in the installation groove. A nut seat is sleeved on the lead screw in a threaded manner, and the nut seat is fixedly connected to the ram. A driving component is arranged between the lead screw and the crossbeam.

[0008] By adopting the above technical solutions, during processing, driving the rotation of the lead screw can drive the nut seat to drive the ram to move along the length direction of the crossbeam; using the driving method of the lead screw and the nut seat to replace the driving method of the gear and the rack can reduce the use of the gearbox motor to achieve the effect of cost reduction; and the ram can move more stably, thus not easily affecting the processing quality.

[0009] Optionally, the driving component includes: a transmission belt and a driving motor. The driving motor is installed on the crossbeam, and the transmission belt is transmitted between the output shaft of the driving motor and the lead screw.

[0010] By adopting the above technical solution, during processing, the driving motor is started, and due to the arrangement of the transmission belt, the lead screw will rotate, thereby being able to drive the nut seat to drive the ram to move.

[0011] Optionally, a lubrication assembly is provided on the nut seat. The lubrication assembly includes: a lubrication part, and the lubrication part includes: a semi-circular block and a lubricating sponge. The semi-circular block is arranged on the nut seat, and the lubricating sponge is fixed on the semi-circular block.

[0012] By adopting the above technical solution, during the movement of the nut seat, the lubricating sponge can apply lubricating oil to the lead screw, so that the lead screw is not prone to rust, thereby being able to extend the service life of the lead screw and the nut seat, and the ram can move more smoothly.

[0013] Optionally, the lubrication assembly further includes: a pressing part and a replenishing part. An oil storage cavity is formed in the semi-circular block, and a replenishing hole is formed through the inner wall of the oil storage cavity. A through oil hole is formed through the bottom of the replenishing hole. The pressing part is arranged on the semi-circular block, and the replenishing part is arranged in the replenishing hole.

[0014] By adopting the above technical solution, by pressing the pressing part, the lubricating oil in the oil storage cavity can be squeezed onto the lubricating sponge, thereby replenishing the lubricating oil for the lubricating sponge.

[0015] Optionally, the pressing part includes: a pressing plate, a pressing rod and a pressing spring. The pressing plate is arranged in the oil storage cavity. A pressing hole is formed in the semi-circular block. One end of the pressing rod is fixed to the pressing plate and the other end penetrates into the pressing hole. The pressing spring is sleeved on the pressing rod and one end thereof is fixed to the pressing rod and the other end is fixed to the bottom of the pressing hole.

[0016] By adopting the above technical solution, during oil replenishment, the pressing rod is pressed, and the pressing rod will push the pressing plate towards the lubricating sponge, so that the lubricating oil in the oil storage cavity can be squeezed onto the lubricating sponge to achieve the effect of oil replenishment.

[0017] Optionally, the replenishing part includes: a mesh plate, a blocking block and a reset spring. The mesh plate is fixed in the replenishing hole. The blocking block is arranged in the replenishing hole, and the reset spring is fixed between the blocking block and the mesh plate.

[0018] By adopting the above technical solution, when the pressing plate squeezes the lubricating oil, the lubricating oil will push the blocking block into the through oil hole to open the replenishing hole, so that the lubricating oil can be squeezed onto the lubricating sponge.

[0019] Optionally, a first sealing sleeve is fixedly sleeved on the pressing plate, and a second sealing sleeve is fixedly sleeved on the blocking block.

[0020] By adopting the above technical solution, the first sealing sleeve can improve the sealing performance between the extrusion plate and the inner wall of the oil storage cavity.

[0021] Optionally, an insertion hole is formed in the nut seat, and a fixing hole is formed in the inner wall of the insertion hole. An insertion rod is fixedly arranged on the half-ring block, and the insertion rod is arranged in the insertion hole. A placement hole is formed in the insertion rod, and a fixing rod is arranged between the placement hole and the fixing hole. A top-pushing spring is arranged between the fixing rod and the bottom of the placement hole, and a guiding surface is arranged on the fixing rod.

[0022] By adopting the above technical solution, during installation, the fixing rod is completely pressed into the placement hole, and then the insertion rod is inserted into the insertion hole; until the fixing hole is aligned with the placement hole, and under the push of the top-pushing spring, the fixing rod automatically inserts into the fixing hole, thus completing the quick connection between the half-ring block and the nut seat.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. During processing, when the driving screw rotates, the nut seat can be driven to drive the ram to move along the length direction of the crossbeam; using the driving method of the screw and the nut seat instead of the driving method of the gear and the rack can reduce the use of the gearbox motor, so as to achieve the effect of cost reduction; and the ram can move more stably, thus not easily affecting the processing quality.

[0025] 2. During the movement of the nut seat, the lubricating sponge can apply lubricating oil to the screw, so that the screw is not easy to rust, thereby extending the service life of the screw and the nut seat, and the ram can move more smoothly.

[0026] 3. During installation, the fixing rod is completely pressed into the placement hole, and then the insertion rod is inserted into the insertion hole; until the fixing hole is aligned with the placement hole, and under the push of the top-pushing spring, the fixing rod automatically inserts into the fixing hole, thus completing the quick connection between the half-ring block and the nut seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram according to Embodiment 1 of the present application;

[0028] Figure 2 is a schematic structural diagram according to Embodiment 2 of the present application;

[0029] Figure 3 is along Figure 2 the schematic cross-sectional view taken along the cutting line A-A in

[0030] Figure 4 is Figure 3 the schematic partial enlarged view of part B in

[0031] Figure 5 is Figure 3 A schematic partial enlarged view of part C in it.

[0032] In the figure: 1, cross beam; 11, slide rail; 12, installation groove; 13, lead screw; 14, nut seat; 141, insertion hole; 142, fixing hole; 2, ram; 21, slider; 3, drive assembly; 31, transmission belt; 32, drive motor; 4, lubrication part; 41, semi-circular block; 411, oil storage cavity; 412, supply hole; 413, oil passage hole; 414, pressing hole; 42, lubricating sponge; 5, pressing part; 51, pressing plate; 511, first sealing sleeve; 52, pressing rod; 53, pressing spring; 6, supply part; 61, mesh plate; 62, plug block; 621, second sealing sleeve; 63, return spring; 7, insertion rod; 71, placement hole; 8, fixing rod; 81, pushing spring; 82, guiding surface. Specific embodiments

[0033] This application provides a screw drive mechanism built into the cross beam of a box-in-box.

[0034] Embodiment 1:

[0035] Referring to Figure 1 , a screw drive mechanism built into the cross beam of a box-in-box includes: a cross beam 1 and a ram 2. In the embodiment of this application, the cross beam 1 is hollow, and in actual application, the cross beam 1 will be slidably installed on the base so that the cross beam 1 can move horizontally. Slide rails 11 are evenly arranged at both ends of the inner side wall of the cross beam 1 along the width direction. A slider 21 is fixedly arranged on the ram 2, and the slider 21 is slidably arranged on the slide rail 11 and slides along the length direction of the slide rail 11.

[0036] Referring to Figure 1 , installation grooves 12 are formed in the inner side walls at both ends of the cross beam 1 along the width direction and along the length direction. A lead screw 13 is horizontally rotatably installed in the installation groove 12. A nut seat 14 is threadedly sleeved on the lead screw 13, and the nut seat 14 is fixedly connected to the ram 2 by bolts. During processing, driving the lead screw 13 to rotate can drive the nut seat 14 to drive the ram 2 to move along the length direction of the cross beam 1; using the driving method of the lead screw 13 and the nut seat 14 instead of the driving method of gears and racks can reduce the use of gearbox motors to achieve the effect of cost reduction; and the ram 2 can move more stably, so that the processing quality is not easily affected.

[0037] In the embodiment of this application, the lead screw 13 is arranged at one end of the cross beam 1 close to the bottom to improve the stability during heavy cutting.

[0038] Referring to Figure 1, a driving assembly 3 is arranged between the lead screw 13 and the cross beam 1. The driving assembly 3 includes: a transmission belt 31 and a driving motor 32. The driving motor 32 is installed on the outer side wall of the cross beam 1, and the transmission belt 31 is transmitted between the output shaft of the driving motor 32 and the lead screw 13. During processing, the driving motor 32 is started, and due to the arrangement of the transmission belt 31, the lead screw 13 will rotate, so as to drive the nut seat 14 to drive the ram 2 to move.

[0039] In the actual application of the embodiment of the present application, if a single set of lead screw 13, nut seat 14, transmission belt 31 and driving motor 32 can drive the ram 2 to move stably and smoothly, then a set of lead screw 13, nut seat 14, transmission belt 31 and driving motor 32 can be removed, so as to achieve the effect of cost saving.

[0040] The working principle of Embodiment 1 is specifically as follows: During processing, the driving motor 32 is started, and due to the arrangement of the transmission belt 31, the lead screw 13 will rotate, so as to drive the nut seat 14 to drive the ram 2 to move.

[0041] Embodiment 2:

[0042] See Figure 2 、 Figure 3 and Figure 4 , the difference between this embodiment and Embodiment 1 is that a lubrication assembly is arranged on the nut seat 14. There are two lubrication assemblies in the embodiment of the present application. The lubrication assembly includes: a lubricating part 4, a pressing part 5 and a replenishing part 6.

[0043] See Figure 4 , the lubrication assembly includes: a semi-circular block 41 and a lubricating sponge 42. The semi-circular block 41 is arranged on the nut seat 14, and the two semi-circular blocks 41 can enclose a complete circle to wrap the lead screw 13. The lubricating sponge 42 is fixed on the semi-circular block 41, and the lubricating sponge 42 is in contact with the lead screw 13. The lubricating sponge 42 absorbs lubricating oil. During the movement of the nut seat 14, the lubricating sponge 42 can apply the lubricating oil to the lead screw 13, so that the lead screw 13 is not easy to rust, thereby extending the service life of the lead screw 13 and the nut seat 14, and the ram 2 can move more smoothly.

[0044] See Figure 5 , further, an insertion hole 141 is opened on one side of the nut seat 14 close to the semi-circular block 41, and a fixing hole 142 is opened on the inner wall of the insertion hole 141. An insertion rod 7 is fixedly arranged at one end of the semi-circular block 41 close to the nut seat 14, and the end of the insertion rod 7 away from the semi-circular block 41 is arranged in the insertion hole 141 to complete the preliminary connection between the semi-circular block 41 and the nut seat 14.

[0045] See Figure 5, one end of the insertion rod 7 located in the insertion hole 141 is provided with an installation hole 71, and a fixing rod 8 is arranged between the installation hole 71 and the fixing hole 142. A pushing spring 81 is fixedly arranged between the fixing rod 8 and the bottom of the installation hole 71, and the pushing spring 81 is used to push the fixing rod 8 to extend out of the installation hole 71. During installation, the fixing rod 8 is completely pressed into the installation hole 71, and then the insertion rod 7 is inserted into the insertion hole 141; until the fixing hole 142 is aligned with the installation hole 71, and through the push of the pushing spring 81, the fixing rod 8 automatically inserts into the fixing hole 142, thus completing the rapid connection between the semi-circular block 41 and the nut seat 14.

[0046] See Figure 5 , one side of the end of the fixing rod 8 away from the pushing spring 81 and facing the semi-circular block 41 is provided with a guiding surface 82, and one end of the guiding surface 82 close to the pushing spring 81 is lower than the opening of the fixing hole 142. During disassembly, pull the semi-circular block 41 away from the nut seat 14 forcefully. Through the setting of the guiding surface 82, the fixing rod 8 will be automatically pressed into the installation hole 71, so that the insertion rod 7 can be withdrawn from the insertion hole 141, thus completing the separation between the semi-circular block 41 and the nut seat 14, in order to supplement the lubricating oil to the lubricating sponge 42.

[0047] See Figure 4 , the pressing part 5 includes: an extrusion plate 51, a pressing rod 52 and a pressing spring 53. The semi-circular block 41 is provided with an oil storage cavity 411 for storing lubricating oil, and a supply hole 412 is provided on the inner wall of the oil storage cavity 411. The inner diameter of the supply hole 412 gradually decreases from the end close to the lubricating sponge 42 to the end away from the lubricating sponge 42; a through oil hole 413 is penetrated through the bottom of the supply hole 412. In the embodiment of the present application, the cross-section of the supply hole 412 is an isosceles trapezoid, and the inner diameter of the through oil hole 413 is larger than the maximum inner diameter of the supply hole 412. In the embodiment of the present application, an oil supply pipe (not shown in the figure) communicating with the oil storage cavity 411 may be provided.

[0048] See Figure 4 , the extrusion plate 51 is arranged in the oil storage cavity 411. A pressing hole 414 is provided on the side wall of the semi-circular block 41. One end of the pressing rod 52 is fixed to the extrusion plate 51 and the other end penetrates into the pressing hole 414; the pressing spring 53 is sleeved on one end of the pressing rod 52 located in the pressing hole 414, and one end of the pressing spring 53 is fixed to the pressing rod 52 and the other end is fixed to the bottom of the pressing hole 414. During oil replenishment, press the pressing rod 52, and the pressing rod 52 will push the extrusion plate 51 to approach the lubricating sponge 42, so as to be able to extrude the lubricating oil in the oil storage cavity 411 onto the lubricating sponge 42 to achieve the effect of oil replenishment; after the oil replenishment is completed, release the pressing rod 52, and the pressing spring 53 can reset the pressing rod 52.

[0049] See Figure 5, Further, a first sealing sleeve 511 is fixedly sleeved on the peripheral wall of the pressing plate 51, and the first sealing sleeve 511 can improve the sealing performance between the pressing plate 51 and the inner wall of the oil storage cavity 411.

[0050] See Figure 4 , The supply part 6 includes: a net plate 61, a plug 62 and a return spring 63. The net plate 61 is fixed in the supply hole 412. The plug 62 is arranged in the supply hole 412, and the plug 62 is located on the side of the net plate 61 close to the lubricating sponge 42. In the embodiment of the present application, the cross section of the plug 62 is an isosceles trapezoid. The return spring 63 is fixed between the net plate 61 and the plug 62. When the pressing plate 51 presses the lubricating oil, the lubricating oil will push the plug 62 to extend into the oil passage hole 413 to open the supply hole 412, so that the lubricating oil can be squeezed onto the lubricating sponge 42; after releasing the pressing rod 52, the return spring 63 can reset the plug 62.

[0051] See Figure 4 , Further, a second sealing sleeve 621 is fixedly sleeved on the plug 62, and the second sealing sleeve 621 can improve the sealing performance between the plug 62 and the inner wall of the supply hole 412.

[0052] The working principle of the second embodiment is as follows: During the movement of the nut seat 14, the lubricating sponge 42 can apply the lubricating oil to the lead screw 13, so that the lead screw 13 is not easy to rust, thereby extending the service life of the lead screw 13 and the nut seat 14, and the ram 2 can move more smoothly.

[0053] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A screw drive mechanism built into the crossbeam of a box-in-box, characterized in that, Including: A crossbeam (1) and a ram (2), a slide rail (11) is fixedly arranged on the crossbeam (1), a slider (21) is fixedly arranged on the ram (2), and the slider (21) is slidably arranged on the slide rail (11). An installation groove (12) is formed in the crossbeam (1), and a lead screw (13) is rotatably installed in the installation groove (12). A nut seat (14) is sleeved on the lead screw (13) in a threaded manner, and the nut seat (14) is fixedly connected to the ram (2). A driving assembly (3) is arranged between the lead screw (13) and the crossbeam (1).

2. The in-box beam built-in lead screw drive mechanism according to claim 1, wherein, The driving assembly (3) includes: a transmission belt (31) and a driving motor (32). The driving motor (32) is installed on the crossbeam (1), and the transmission belt (31) is transmitted between the output shaft of the driving motor (32) and the lead screw (13).

3. The in-box beam built-in screw drive mechanism according to claim 1, characterized in that A lubricating assembly is arranged on the nut seat (14). The lubricating assembly includes: a lubricating part (4). The lubricating part (4) includes: a semi-circular block (41) and a lubricating sponge (42). The semi-circular block (41) is arranged on the nut seat (14), and the lubricating sponge (42) is fixed on the semi-circular block (41).

4. The in-box crossbeam built-in screw drive mechanism according to claim 3, characterized in that, The lubricating assembly further includes: a pressing part (5) and a replenishing part (6). An oil storage cavity (411) is formed in the semi-circular block (41), and a replenishing hole (412) is formed through the inner wall of the oil storage cavity (411). A through oil hole (413) is formed through the bottom of the replenishing hole (412). The pressing part (5) is arranged on the semi-circular block (41), and the replenishing part (6) is arranged in the replenishing hole (412).

5. The in-box crossbeam built-in lead screw drive mechanism according to claim 4, characterized in that, The pressing part (5) includes: a pressing plate (51), a pressing rod (52) and a pressing spring (53). The pressing plate (51) is arranged in the oil storage cavity (411). A pressing hole (414) is formed in the semi-circular block (41). One end of the pressing rod (52) is fixed to the pressing plate (51), and the other end penetrates into the pressing hole (414). The pressing spring (53) is sleeved on the pressing rod (52), and one end of the pressing spring (53) is fixed to the pressing rod (52), and the other end is fixed to the bottom of the pressing hole (414).

6. The in-box crossbeam built-in screw drive mechanism according to claim 5, characterized in that, The replenishing part (6) includes: a net plate (61), a plug block (62) and a return spring (63). The net plate (61) is fixed in the replenishing hole (412). The plug block (62) is arranged in the replenishing hole (412), and the return spring (63) is fixed between the plug block (62) and the net plate (61).

7. The in-box beam built-in lead screw drive mechanism according to claim 6, wherein, A first sealing sleeve (511) is fixedly sleeved on the pressing plate (51), and a second sealing sleeve (621) is fixedly sleeved on the plug block (62).

8. The in-box crossbeam built-in screw drive mechanism according to claim 3, characterized in that, The nut seat (14) is provided with an insertion hole (141), and a fixing hole (142) is formed in the inner wall of the insertion hole (141). An insertion rod (7) is fixedly arranged on the half-ring block (41), and the insertion rod (7) is arranged in the insertion hole (141). An installation hole (71) is formed in the insertion rod (7), and a fixing rod (8) is arranged between the installation hole (71) and the fixing hole (142). A pushing spring (81) is arranged between the fixing rod (8) and the bottom of the installation hole (71). A guiding surface (82) is arranged on the fixing rod (8).

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