High-rigidity square ram gantry machining center with six linear rails on machine head

Abstract

The utility model discloses a high-rigidity square ram gantry machining center with a machine head provided with six linear rails, relates to the field of machine tools, improves the overall strength, expands the machining range, and comprises a machine tool body. A driving sleeve body is arranged at the machining end of the machine tool body in a sliding mode, a through groove is formed in the driving sleeve body, a ram body is connected into the through groove in a sliding mode, linear rail bodies which are mutually symmetrical are distributed on the three sides of the ram body, and sliding block boxes are connected into the linear rail bodies in a sliding mode. The side, away from the linear rail body, of the sliding block box is connected with the inner wall of the through groove. The machining precision, stability and reliability of the machine tool are finally improved, the linear rail body and the sliding block box bear larger load and lateral force, and a cutter or a workbench can stably conduct high-precision machining; and finally, the inclination angle of the machining head can be adjusted, so that an object is machined, and the machining range of the machining head is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a high-rigidity square ram gantry machining center with six linear rails on the machine head. Background Art

[0002] The high-rigidity square ram gantry machining center adopts a gantry frame fixed, the worktable moves on the bed (1 axis), the spindle box moves on the saddle (Z axis), the saddle and the spindle box move on the crossbeam (Y axis), the spindle box adopts a square ram structure, and the speed is changed by a two-stage gear box to meet the needs of low-speed constant torque and high-speed constant power cutting. The high-rigidity square ram gantry machining center has the characteristics of high precision, high efficiency, high reliability, high rigidity, and high torque.

[0003] The square ram is the head of the gantry machining center. The square ram gantry machining center has the characteristics of high precision, which can ensure that the processed parts meet the fineness requirements and meet the processing needs of high-precision parts.

[0004] The existing gantry machining center's machine head is basically equipped with two or four linear rails. Although it can improve rigidity, speed, accuracy and stability to a certain extent, the four or two linear rails may deform or vibrate under the same force conditions, affecting the machining accuracy and stability, while limiting its load capacity.

[0005] In the existing machine head of the gantry machining center, when in use, the spindle passes through the square slide and the tool head is installed through the tool sleeve to process the object, but its angle is adjusted, thereby limiting its processing range. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the problems existing in the prior art, the utility model provides a high-rigidity square ram gantry machining center with six linear rails on the machine head.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model is implemented through the following technical solutions: a high-rigidity square ram gantry machining center with six linear rails on the machine head, comprising a machine tool body; a driving sleeve is slidably provided at the machining end of the machine tool body, the driving sleeve is provided with a through slot, the interior of the through slot is slidably connected to the ram body, the bottom end of the ram body is installed with a mounting frame assembly through bolts, the three sides of the ram body are distributed with mutually symmetrical linear rail bodies, the interior of the linear rail body is slidably connected to a slider box, and the side of the slider box away from the linear rail body is connected to the inner side of the through slot. The wall, the interior of the slider box is slidably connected with evenly distributed steel ball parts, the bottom of the mounting frame assembly is movably connected with a support part, the inside of the support part is movably connected with a receiving ring part and a T-shaped connecting part; a driving motor is installed on the top of the ram body through bolts, the output end of the driving motor is connected with a main shaft, the main shaft runs through the ram body, and the bottom of the main shaft is movably connected with a cross connecting part for connecting with the linkage shaft below so that the linkage shaft can rotate with the cutter head sleeve, and the linear rail body and the slider box are used to increase the strength and stability of the ram body when it slides.

[0010] As a preferred solution of the utility model, a high-rigidity square slide gantry machining center with six linear rails on the machine head, wherein the mounting frame assembly includes a support member, a receiving ring member, a T-shaped connecting member and a cross connecting member, which are used to adjust the inclination angle of the linkage shaft, thereby expanding the processing range.

[0011] By adopting the above technical solution, when it is necessary to process an object, the driving motor above the ram body will drive the main shaft to rotate, and the cross connector and the cutter head sleeve will also rotate to process the object. When it is necessary to process the oblique side of the object, the driving motor above the ram body can be paused first, and then the stepper motor and the forward and reverse motor can be operated in sequence. The operation of the stepper motor will rotate the support at the bottom of the mounting frame assembly, and the rotation of the forward and reverse motor will rotate the T-shaped connector with the receiving ring. Since the linkage shaft is movably connected to the inside of the receiving ring, the inclination angle of the linkage shaft and the cutter head sleeve can be adjusted, and finally the inclination angle of the processing head can be adjusted, and then the object can be processed, thereby expanding its processing range.

[0012] As a preferred solution of the utility model, a high-rigidity square slide ram gantry machining center with six linear rails on the machine head is provided with a mounting bolt on one side of the slider box close to the linear rail body, and the mounting bolt is threaded through the slider box to connect it to the inner wall of the through groove.

[0013] By adopting the above technical solution, there are also mounting bolts inside and on both sides of the slide rail of the linear rail body for connecting it to the slide body; the slider box can be separated from the middle for easy later maintenance, and the through-thread connection of the mounting bolt is required.

[0014] As a preferred solution of the utility model, a high-rigidity square slide ram gantry machining center with six linear rails on the machine head, circulation grooves are opened on both sides of the slider box, and steel ball parts are evenly distributed inside the circulation grooves. The steel ball parts fit the inner wall of the linear rail body to reduce friction.

[0015] By adopting the above technical solution, the circulation groove is in the shape of a racetrack circle, and there is lubricating oil inside the circulation groove to ensure the rotation and sliding of the steel ball parts inside the circulation groove.

[0016] As a preferred solution of the utility model, a high-rigidity square slide ram gantry machining center with six linear rails on the machine head, a connecting ring tooth is welded on the top of the support member, and the connecting ring tooth is movably connected to the mounting frame assembly by embedding, and a stepper motor is installed inside the mounting frame assembly by bolts, and the output end of the stepper motor is meshed and connected to the connecting ring tooth for adjusting the rotation angle of the support member.

[0017] By adopting the above technical solution, the mounting frame assembly has a mounting cavity corresponding to the connecting ring gear and the stepper motor, which is used to adjust the rotation angle of the entire support and its object when the stepper motor is operating.

[0018] As a preferred solution of the utility model, a high-rigidity square slide ram gantry machining center with six linear rails on the machine head, wherein both sides of the receiving ring are welded to the T-shaped connecting piece, and the top end of the T-shaped connecting piece is movably connected to the inner wall of the support piece.

[0019] By adopting the above technical solution, the T-shaped connecting piece is in an inverted T shape, and its upper end is movably connected to the inner wall of the supporting piece.

[0020] As a preferred solution of the utility model, a high-rigidity square slide gantry machining center with six linear rails on the machine head, a forward and reverse motor is installed inside the support member by bolts, and the output end of the forward and reverse motor is engaged and connected to the top of the T-shaped connecting member, so as to allow the receiving ring to rotate around the axis at the top of the T-shaped connecting member, thereby adjusting the tilt angle.

[0021] By adopting the above technical solution, the output ends of the forward and reverse motors and the stepper motors are equipped with gear sets for meshing and transmission. The cross connection piece is a universal coupling, so the lower linkage shaft is allowed to deflect at an angle during the rotation of the main shaft; the tool head sleeve is used to fix the tool holder.

[0022] As a preferred solution of the utility model, a high-rigidity square slide gantry machining center with six linear rails on the machine head is described, wherein a plug-in rod is welded to the side of the bottom end of the T-shaped connecting piece away from the receiving ring piece, and the plug-in rod is slidably connected to the inner wall of the support piece to assist in limiting its tilting range.

[0023] By adopting the above technical scheme, cavities are opened in the mounting frame assembly and the supporting member corresponding to the main shaft, cross connecting member, linkage shaft, cutter head sleeve and receiving ring, T-shaped connecting member, plug rod, and forward and reverse motors for convenient transmission and adjustment of the tilt angle; only one side of the top of the T-shaped connecting member is engaged with the output end of the forward and reverse motors, while the top of the other T-shaped connecting member is movably connected to the inner wall of the supporting member through a pin.

[0024] As a preferred solution of the utility model, a high-rigidity square slide gantry machining center with six linear rails on the machine head, wherein the machine tool body, the slide body, the drive motor, the spindle and the tool head sleeve constitute a high-rigidity square slide gantry machining center.

[0025] By adopting the above technical solutions, the square ram gantry machining center is mainly used to process large, heavy, high-precision and high-efficiency parts. Its working principle is to use the gantry frame to fix, the worktable moves on the bed (axis), the spindle box moves on the saddle (Z axis), and the saddle and the spindle box move on the crossbeam (Y axis). The spindle box adopts a square ram structure and is speed-changed by a two-stage gearbox to meet the needs of low-speed constant torque and high-speed constant power cutting.

[0026] (III) Beneficial effects

[0027] The utility model provides a high-rigidity square ram gantry machining center with six linear rails on the machine head. It has the following beneficial effects:

[0028] First, by setting up the machine tool body, slide body and mounting frame assembly and their respective objects, when the hydraulic pressure above the driving sleeve is manipulated by an external control device to push the slide body downward, since the three outer peripheries of the slide body are installed with two pairs of linear rail bodies by bolts, and the internal sliding connection of the linear rail body is connected with a slider box, and the slider box is connected to the inner wall of the through groove by a mounting bolt, the steel ball parts inside the slider box will slide with the inside of the linear rail body during the sliding process, ultimately improving the machining accuracy, stability and reliability of the machine tool, and allowing the linear rail body and the slider box to withstand greater loads and lateral forces, so that the tool or workbench can stably perform high-precision machining.

[0029] Secondly, by setting up the machine tool body, slide body and mounting frame assembly and their respective objects, when it is necessary to process the object, the drive motor above the slide body will drive the main shaft to rotate. At this time, the cross connecting piece and the tool head sleeve will also rotate and process the object. When it is necessary to process the oblique side of the object, the operation of the drive motor above the slide body can be paused first, and then the stepper motor and the forward and reverse motor can be operated in sequence. The operation of the stepper motor will rotate the support at the bottom of the mounting frame assembly, and the rotation of the forward and reverse motors will rotate the T-shaped connecting piece with the receiving ring. Since the linkage shaft is movably connected to the inside of the receiving ring, the inclination angle of the linkage shaft and the tool head sleeve can be adjusted, and finally the inclination angle of the processing head can be adjusted, and then the object can be processed, thereby expanding its processing range. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0032] Figure 2 It is a structural schematic diagram of part of the utility model.

[0033] Figure 3 It is a structural schematic diagram of the ram body and the interior of the object of the utility model.

[0034] Figure 4 This utility model Figure 3 A magnified view of the displacement of part A in the middle.

[0035] Figure 5 It is a structural cross-sectional view of the mounting frame assembly, the main shaft and the objects thereof of the utility model.

[0036] Figure 6 It is a schematic diagram of the structure in which the mounting frame assembly of the utility model is separated from the main shaft and the objects thereof.

[0037] In the figure, 10, machine tool body; 11, driving sleeve; 12, through groove; 13, main shaft; 14, cross connector; 15, linkage shaft; 16, tool head sleeve; 17, driving motor; 20, ram body; 21, linear rail body; 22, slider box; 23, circulation groove; 24, steel ball piece; 25, mounting bolt; 30, mounting frame assembly; 31, supporting piece; 32, connecting ring gear; 33, stepping motor; 34, receiving ring piece; 35, T-shaped connecting piece; 36, plug-in rod; 37, forward and reverse motor. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] Example 1

[0040] Reference Figure 1 , 2 , 3, 4, 5 and 6 are the first embodiment of the utility model, which provides a high-rigidity square ram gantry machining center with six linear rails on the machine head, including a machine tool body 10; a driving sleeve 11 is slidably provided at the machining end of the machine tool body 10, and the driving sleeve 11 is provided with a through groove 12, and a ram body 20 is slidably connected inside the through groove 12, and a mounting frame assembly 30 is installed at the bottom end of the ram body 20 by bolts, and mutually symmetrical linear rail bodies 21 are distributed on three sides of the ram body 20, and a slider box 22 is slidably connected inside the linear rail body 21, and the slider box 22 is connected to the inner wall of the through groove 12 on the side away from the linear rail body 21, and the slider The box 22 is internally slidably connected with evenly distributed steel ball parts 24, and the mounting frame assembly 30 is movably connected with a support member 31 at the bottom, and the support member 31 is internally movably connected with a receiving ring member 34 and a T-shaped connecting member 35; a driving motor 17 is installed at the top of the ram body 20 by bolts, and the output end of the driving motor 17 is connected to the main shaft 13, and the main shaft 13 passes through the ram body 20. A cross connecting member 14 is movably connected below the main shaft 13 for connecting with the linkage shaft 15 below so that the linkage shaft 15 can rotate with the tool head sleeve 16, and the linear rail body 21 and the slider box 22 are used to increase the strength and stability of the ram body 20 when sliding.

[0041] Specifically, the mounting frame assembly 30 includes a support member 31, a receiving ring member 34, a T-shaped connector 35 and a cross connector 14, which are used to adjust the inclination angle of the linkage shaft 15, thereby expanding the processing range; when it is necessary to process the object, the drive motor above the ram body 20 will drive the main shaft 13 to rotate, and at this time the cross connector 14 and the cutter head sleeve 16 will also rotate and process the object, and when it is necessary to process the oblique side of the object, the drive motor above the ram body 20 can be suspended first. At this time, the stepper motor 33 and the forward and reverse motor 37 are operated in sequence. The operation of the stepper motor 33 will rotate the support member 31 at the bottom of the mounting frame assembly 30, and the rotation of the forward and reverse motor 37 will rotate the T-shaped connector 35 with the receiving ring member 34. Since the linkage shaft 15 is movably connected to the inside of the receiving ring member 34, the inclination angle of the linkage shaft 15 and the tool head sleeve 16 can be adjusted, and finally the inclination angle of the processing head can be adjusted, and then the object can be processed, thereby expanding its processing range.

[0042] Furthermore, a mounting bolt 25 is distributed on one side of the slider box 22 close to the linear rail body 21, and the mounting bolt 25 penetrates the threaded connection of the slider box 22 to connect it to the inner wall of the through groove 12. There are also mounting bolts 25 inside and on both sides of the slide rail of the linear rail body 21 to connect it to the ram body 20; the slider box 22 can be separated from the middle to facilitate later maintenance, and thus requires a through-threaded connection of the mounting bolt 25. Circulation grooves 23 are provided on both sides of the slider box 22, and steel ball pieces 24 are evenly distributed inside the circulation grooves 23. The steel ball pieces 24 fit the inner wall of the linear rail body 21 to reduce friction. The circulation groove 23 is in the shape of a runway circle, and there is lubricating oil inside to ensure the rotation and sliding of the steel ball pieces 24 inside the circulation groove 23. A connecting ring gear 32 is welded to the top of the support member 31, and the connecting ring gear 32 is movably connected to the mounting frame assembly 30 by embedding. A stepper motor 33 is installed inside the mounting frame assembly 30 by bolts, and the output end of the stepper motor 33 is meshed and connected to the connecting ring gear 32 for adjusting the rotation angle of the support member 31.

[0043] Example 2

[0044] Reference Figure 1 , 2 , 3, 4, 5 and 6 are the second embodiment of the utility model, which is based on the previous embodiment. The mounting frame assembly 30 has a mounting cavity corresponding to the connecting ring gear 32 and the stepper motor 33, which is used to adjust the rotation angle of the entire support member 31 and its object when the stepper motor 33 is in operation. The two sides of the receiving ring member 34 are welded and connected to the T-shaped connecting member 35, and the top of the T-shaped connecting member 35 is movably connected to the inner wall of the support member 31. The T-shaped connecting member 35 is in an inverted T shape, and its upper end is movably connected to the inner wall of the support member 31. A forward and reverse motor 37 is installed inside the support member 31 by bolts, and the output end of the forward and reverse motor 37 is meshed and connected to the top of the T-shaped connecting member 35, which is used to allow the receiving ring member 34 to rotate around the axis at the top of the T-shaped connecting member 35, thereby adjusting the tilt angle. The output ends of the forward and reverse motor 37 and the stepper motor 33 are both provided with gear sets for meshing and transmission. The cross connection member 14 is a universal coupling, so that the lower linkage shaft 15 is allowed to deflect an angle during the rotation of the main shaft 13.

[0045] Specifically, the tool sleeve 16 is used to fix the tool holder. The bottom end of the T-shaped connector 35 is welded to a plug rod 36 on the side away from the receiving ring 34. The plug rod 36 is slidably connected to the inner wall of the support 31 to assist in limiting its tilt range. The mounting frame assembly 30 and the support 31 correspond to the main shaft 13, the cross connector 14, the linkage shaft 15, the tool sleeve 16 and the receiving ring 34, the T-shaped connector 35, the plug rod 36, and the forward and reverse motor 37. Cavities are provided to facilitate transmission and adjustment of the tilt angle; only one side of the top of the T-shaped connector 35 is engaged with the output end of the forward and reverse motor 37, while the top of the other T-shaped connector 35 is movably connected to the inner wall of the support 31 through a latch.

[0046] Furthermore, the machine tool body 10, the ram body 20, the drive motor 17, the spindle 13 and the cutter sleeve 16 constitute a high-rigidity square ram gantry machining center. The square ram gantry machining center is mainly used to process large, heavy, high-precision and high-efficiency parts. Its working principle is that the gantry frame is fixed, the worktable moves the 1 axis on the bed, the spindle box moves the Z axis on the saddle, and the saddle together with the spindle box moves the Y axis on the crossbeam. The spindle box adopts a square ram structure and is speed-changed through a two-stage gearbox to meet the needs of low-speed constant torque and high-speed constant power cutting.

[0047] Working principle: through the machine tool body 10, the ram body 20 and the mounting frame assembly 30 and their respective objects, when the hydraulic pressure above the driving sleeve 11 is manipulated by the external control device to push the ram body 20 downward, since the three outer peripheries of the ram body 20 are installed with two pairs of linear rail bodies 21 by bolts, and the inner sliding connection of the linear rail body 21 is connected with the slider box 22, and the slider box 22 is connected to the inner wall of the through groove 12 by the mounting bolt 25, the steel ball piece 24 inside the slider box 22 will slide with the inner part of the linear rail body 21 during the sliding process, ultimately improving the machining accuracy, stability and reliability of the machine tool, and allowing the linear rail body 21 and the slider box 22 to bear greater loads and lateral forces, so that the tool or workbench can stably perform high-precision machining; through the machine tool body 10, the ram body 20 and the mounting frame assembly Parts 30 and their respective objects. When it is necessary to process the object, the driving motor above the ram body 20 will drive the main shaft 13 to rotate. At this time, the cross connecting member 14 and the tool head sleeve 16 will also rotate and process the object. When it is necessary to process the oblique side of the object, the operation of the driving motor above the ram body 20 can be paused first, and then the stepper motor 33 and the forward and reverse motor 37 can be operated in sequence. The operation of the stepper motor 33 will rotate the support member 31 at the bottom of the mounting frame assembly 30, and the rotation of the forward and reverse motor 37 will allow the T-shaped connecting member 35 to rotate with the receiving ring member 34. Since the linkage shaft 15 is movably connected to the inside of the receiving ring member 34, the inclination angle of the linkage shaft 15 and the tool head sleeve 16 can be adjusted, and finally the inclination angle of the processing head can be adjusted, and then the object can be processed, thereby expanding its processing range.

[0048] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A high-rigidity square ram gantry machining center with six linear rails on the machine head, characterized in that: The invention comprises a machine tool body (10); a driving sleeve (11) is slidably provided at the processing end of the machine tool body (10); the driving sleeve (11) is provided with a through slot (12); a ram body (20) is slidably connected inside the through slot (12); a mounting frame assembly (30) is installed at the bottom end of the ram body (20) by bolts; three sides of the ram body (20) are distributed with mutually symmetrical linear rail bodies (21); a slider box (22) is slidably connected inside the linear rail body (21); a side of the slider box (22) away from the linear rail body (21) is connected to the inner wall of the through slot (12); the slider box (22) is slidably connected inside with uniformly distributed steel ball pieces (24); A support member (31) is movably connected to the bottom of the mounting frame assembly (30), and a receiving ring member (34) and a T-shaped connecting member (35) are movably connected inside the support member (31); a driving motor (17) is installed on the top of the sliding pillow body (20) through bolts, and the output end of the driving motor (17) is connected to a main shaft (13), and the main shaft (13) passes through the sliding pillow body (20); a cross connecting member (14) is movably connected to the bottom of the main shaft (13) for connecting to the linkage shaft (15) below so that the linkage shaft (15) can rotate with the tool head sleeve (16), and the linear rail body (21) and the slider box (22) are used to increase the strength and stability of the sliding pillow body (20) when sliding.

2. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: The mounting frame assembly (30) comprises a support member (31), a receiving ring member (34), a T-shaped connecting member (35) and a cross connecting member (14), which are used to adjust the inclination angle of the linkage shaft (15) and thus expand the processing range.

3. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: A mounting bolt (25) is distributed on one side of the slider box (22) close to the linear rail body (21), and the mounting bolt (25) is threadedly connected to the slider box (22) for connecting it to the inner wall of the through groove (12).

4. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: Circulation grooves (23) are provided on both sides of the slider box (22), and steel ball pieces (24) are evenly distributed inside the circulation grooves (23). The steel ball pieces (24) fit the inner wall of the linear rail body (21) to reduce friction.

5. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: A connecting ring tooth (32) is welded to the top of the support member (31), and the connecting ring tooth (32) is movably connected to the mounting frame assembly (30) by embedding. A stepper motor (33) is installed inside the mounting frame assembly (30) by bolts, and the output end of the stepper motor (33) is meshedly connected to the connecting ring tooth (32) for adjusting the rotation angle of the support member (31).

6. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: The two sides of the receiving ring (34) are welded to the T-shaped connecting piece (35), and the top end of the T-shaped connecting piece (35) is movably connected to the inner wall of the supporting piece (31).

7. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: A forward and reverse motor (37) is installed inside the support member (31) by means of bolts, and the output end of the forward and reverse motor (37) is meshedly connected to the top end of the T-shaped connecting member (35) to allow the receiving ring member (34) to rotate around the axis at the top end of the T-shaped connecting member (35) to adjust the tilt angle.

8. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: A plug-in rod (36) is welded to the bottom end of the T-shaped connecting piece (35) away from the receiving ring piece (34), and the plug-in rod (36) is slidably connected to the inner wall of the supporting piece (31) to assist in limiting its tilting range.

9. According to claim 1, a high-rigidity square ram gantry machining center with six linear rails on the machine head is characterized by: The machine tool body (10), the ram body (20), the drive motor (17), the spindle (13) and the tool head sleeve (16) constitute a high-rigidity square ram gantry machining center.

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