CN209970079U - Dual-purpose machine tool - Google Patents

Abstract

A dual-purpose machine tool includes a machine body unit and a working unit. The machine body unit comprises a base and a machine column extending from the base along a first axial direction, and a second axial direction perpendicular to the first axial direction is defined. The work unit includes a table. The table has a top surface. The dual-purpose machine tool further comprises a connecting unit, a transmission unit and a processing unit. The connecting unit comprises a base and an oil hydraulic cylinder. The oil hydraulic cylinder is provided with a cylinder body group and a piston rod capable of generating telescopic movement relative to the cylinder body group. The transmission unit can be driven by the piston rod to be linked. The processing unit can be driven by the transmission unit to rotate around a rotation axis between a first position and a second position relative to the workbench. The machining unit includes a spindle extending along a centerline. The position of the processing unit can be switched without manual operation or a servo motor, so that the processing unit has the advantages of convenience and low cost.

Description

Dual-purpose machine tool

Technical Field

The utility model relates to a processing equipment especially relates to a dual-purpose machine tool of main shaft direction can change.

Background

Referring to fig. 1 and 2, a conventional machine tool is adapted to perform a machining operation on an object 11. The object 11 includes a top surface 111, a bottom surface 112 opposite to the top surface 111, and a surrounding surface 113 connecting the peripheries of the top surface 111 and the bottom surface 112. The conventional machine tool includes a base 12, a column 13 extending upward from the base 12, a table 14 disposed on the base 12 for placing the object 11, a lifting base 15 movable in an up-and-down direction a and located above the table 14, a cutting base 16 rotatably connected to a front portion of the lifting base 15 about an axis L, and a cutter 17 connected to one end of the cutting base 16. The cutting base 16 can be adjusted manually to bring the knife 17 into rotation about the axis L relative to the base 12 between a horizontal position, as shown in fig. 1, and a vertical position, as shown in fig. 2. In the horizontal position, the tool 17 corresponds to the surrounding surface 113 of the object 11. In the upright position, the knife 17 corresponds to the top surface 111 of the object 11.

When the cutting tool is used, an object 11 is placed on the workbench 14, then the cutting seat 16 is operated according to operation requirements to drive the cutter 17 to rotate around the axis L to be in the vertical position or the horizontal position relative to the base 12, and then the lifting seat 15 is operated to move along the vertical direction A to drive the height of the cutter 17 to correspond to the height of the object 11, so that the cutting or carving and other processing operations can be carried out.

However, the conventional machine tool is inconvenient to use because the cutting seat 16 is manually rotated. In this regard, another conventional machine tool is driven by a servo motor to rotate the cutting base 16, which is convenient in use but has a problem of high cost, and in practice, the another conventional machine tool is also found to have a problem of inaccurate positioning when the cutting base 16 is driven to rotate.

Disclosure of Invention

The object of the present invention is to provide a dual-purpose machine tool which improves at least one of the disadvantages of the prior art.

The utility model discloses dual-purpose machine tool contains organism unit, and operation unit. The body unit includes a base and a mast extending from the base in a first axial direction. A second axis perpendicular to the first axis is defined. The operation unit comprises a workbench arranged on the base. The table has a top surface. The dual-purpose machine tool further comprises a connecting unit, a transmission unit and a processing unit. The connecting unit comprises a base arranged on the machine column and an oil hydraulic cylinder arranged on the base. The oil hydraulic cylinder is provided with a cylinder body group arranged on the base and a piston rod capable of generating telescopic movement relative to the cylinder body group. The transmission unit is arranged on the base, connected with the piston rod and driven by the piston rod to be interlocked. The processing unit is arranged on one side of the base, which is relatively close to the workbench, is connected with the transmission unit and can be driven by the transmission unit to rotate around a rotation axis extending along the second axial direction between a first position and a second position which are different relative to the workbench. The machining unit includes a spindle extending along a centerline.

The utility model discloses dual-purpose machine tool, the linkage unit the base is followed first axial with the organism unit base looks interval.

The utility model discloses dual-purpose machine tool, the processing unit for the workstation is in during the first position, the main shaft the central line is perpendicular the workstation the top surface during the second position, the main shaft the central line is parallel the workstation the top surface.

The utility model discloses dual-purpose machine tool, the linkage unit the piston rod is along perpendicular first axial with the third axial of second axial for cylinder body group produces telescopic movement.

The utility model discloses dual-purpose machine tool, the linkage unit is still including controlling and making hydraulic oil leading-in hydraulic control valve in the cylinder body group.

The utility model discloses dual-purpose machine tool, the transmission unit including set up in the outer peripheral face of piston rod stopper, and the pivot is located the base can by stopper drives and makes the processing unit winds axis of rotation pivoted driving medium.

The utility model discloses dual-purpose machine tool, the drive unit the stopper set up in the outer peripheral face of piston rod just follows the tooth row of third axial extension, the driving medium with the meshing gear is arranged to the tooth.

The utility model discloses dual-purpose machine tool, the linkage unit still including connect in the driving medium enables the processing unit winds axis of rotation produces the stopper of location.

The utility model discloses dual-purpose machine tool, the linkage unit the cylinder body group has two edges third axial looks spaced jar portion, the piston rod sets up between the jar portion.

The utility model discloses dual-purpose machine tool, the linkage unit is still including connecting the oil hydraulic cylinder with water conservancy diversion nest of tubes between the hydraulic control valve, water conservancy diversion nest of tubes has two looks intervals and connects the hydraulic control valve just connects respectively the removal pipe of cylinder body, hydraulic control valve can control hydraulic oil via remove the pipe and get into the cylinder body group and make the piston rod is followed the third axial is towards double-phase opposite direction removal respectively.

The utility model discloses a profitable effect lies in: by arranging the piston rod, the cylinder block group and the transmission unit, when the piston rod moves telescopically relative to the cylinder block group, the transmission unit can be transmitted to drive the processing unit to rotate around the rotation axis between a first position and a second position which are different relative to the workbench, and the position of the processing unit does not need to be switched manually or by a servo motor, so that the processing device has the advantages of convenience and low cost.

Drawings

FIG. 1 is a perspective assembly view of a prior art machine tool illustrating a cutting block in an upright position relative to a base;

FIG. 2 is a perspective assembly view of the prior art machine tool illustrating the cutting block in a horizontal position relative to the base;

FIG. 3 is a perspective assembly view of one embodiment of the novel dual-purpose machine tool illustrating a machining unit in a first position relative to a table;

FIG. 4 is an exploded perspective view of the embodiment;

FIG. 5 is a schematic front view of a connecting unit and a transmission unit of the embodiment;

FIG. 6 is a schematic right view of the connection unit and the transmission unit of the embodiment;

fig. 7 is a perspective assembly view of the embodiment illustrating the processing unit in a second position relative to the table.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 3 and 4, an embodiment of the dual purpose machine tool of the present invention is adapted to couple a tool 91 and perform a machining operation on an object 92. The object 92 includes an upper surface 921, a lower surface 922 opposite to the upper surface 921, and a surrounding surface 923 connecting the peripheries of the upper surface 921 and the lower surface 922. The dual-purpose machine tool comprises a machine body unit 2, a working unit 3, a connecting unit 4, a transmission unit 5, a machining unit 6, a guide unit 7, and a drive unit 8.

The body unit 2 comprises a base 21 and a mast 22 extending from the base 21 in a first axial direction Z. A second axis X and a third axis Y are defined, perpendicular to the first axis Z and to each other.

The working unit 3 includes a sliding seat 31 slidably disposed on the base 21 along the second axial direction X with respect to the base 21, and a table 32 slidably disposed on the sliding seat 31 along the third axial direction Y with respect to the base 21. The table 32 has a base 322, and a top 321 which is arranged above the base 322 and can rotate relative to the base 322 about a base line L3 extending along the first axis Z and is suitable for placing the object 92.

The technique for rotating the top 321 around the base line L3 relative to the base 322 can be implemented by a servo motor or other techniques, which are not repeated herein since the technique is prior art and not essential to the present application.

Referring to fig. 4, 5 and 6, the connection unit 4 includes a base 41 spaced apart from the base 21 along the first axial direction Z and slidably disposed on the machine pillar 22 relative to the base 21 along the first axial direction Z, a hydraulic cylinder 42 disposed on the base 41, a hydraulic control valve 43 disposed on the base 41 and capable of controlling hydraulic oil to be introduced into the hydraulic cylinder 42, a brake 45 disposed on the base, and a guide pipe set 44 connecting the hydraulic cylinder 42, the hydraulic control valve 43 and the brake 45.

The base 41 has a base wall 411 slidably disposed on the column 22, a connecting wall 412 spaced from the base wall 411 along the second axial direction X and having a smaller contour than the base wall 411, and a surrounding wall 413 extending from a periphery of the connecting wall 412 toward the base wall 411 and connecting the base wall 411. The base wall 411, the connecting wall 412 and the surrounding wall 413 cooperate to define an accommodating space 414 for the oil pressure cylinder 42. The base wall 411 has an extended surface area 415 corresponding to one side of the connecting wall 412 and located outside the surrounding wall 413 and provided for the hydraulic control valve 43.

The hydraulic cylinder 42 has a cylinder block 421 disposed in the accommodating space 414, and a piston rod 422 capable of moving in a telescopic manner relative to the cylinder block 421 along the third axial direction Y. In this embodiment, the oil pressure cylinder 42 is in the form of a double-cylinder oil pressure, so the cylinder block 421 has two cylinder portions 423 spaced apart from each other along the third axial direction Y and respectively connected to two corresponding sides of the surrounding wall 413, and the piston rod 422 is disposed between the cylinder portions 423.

In this embodiment, the brake 45 is in the form of a hydraulic electromagnetic brake, and includes a fixing member 451 that is non-rotatably disposed in the accommodating space 414 and is annular and spaced from the base wall 411, a connecting member 452 that is rotatably disposed inside the fixing member 451 about a rotation axis L1 extending along the second axial direction X with respect to the table 32 and has an outer periphery corresponding to an inner periphery of the fixing member 451, an engaging member 453 that is disposed between the fixing member 451 and the base wall 411 and has a shape and a contour corresponding to the fixing member 451 and the connecting member 452, an engaging portion 454 that is formed on a side of the engaging member 453 adjacent to the fixing member 451, a positioning portion 455 that is formed on the fixing member 451 and is complementary to a portion of the engaging portion 454, and an engaging portion 456 that is formed on the connecting member 452 and is complementary to a portion of the engaging portion 454 and is engageable with each other, An elastic member set 457 connecting the base wall 411 and the locking member 453 and constantly making the locking member 453 abut against the fixing member 451 and the connecting member 452, two positioning cylinders 458 spaced apart and disposed on the fixing member 451, and two piston members 459 formed on one side of the locking member 453 adjacent to the fixing member 451 and respectively corresponding to the positioning cylinders 458 and respectively capable of performing telescopic movement relative to the positioning cylinders 458 along the second axial direction X.

The guide pipe group 44 includes two moving pipes 441 connected to the hydraulic control valve 43 at intervals and to the cylinder portions 423, respectively, and two positioning pipes 442 located between the moving pipes 441 at intervals and connected to the positioning cylinders 458, respectively. The hydraulic control valve 43 can be operated to introduce hydraulic oil into the cylinder block 421 to drive the piston rod 422 to perform telescopic motion relative to the cylinder block 421.

In this embodiment, the hydraulic control valve 43 controls the hydraulic oil to be introduced into the left cylinder portion 423 through the left moving pipe 441 in fig. 5, thereby moving the piston rod 422 to the right, and the hydraulic control valve 43 controls the hydraulic oil to be introduced into the right cylinder portion 423 through the right moving pipe 441 in fig. 5, thereby moving the piston rod 422 to the left.

The transmission unit 5 is disposed on the base 41, connected to the piston rod 422, and driven by the piston rod 422 to move. The transmission unit 5 includes an actuating member 51 disposed on the outer peripheral surface of the piston rod 422, and a transmission member 52 disposed in the accommodating space 414, connected to the connecting member 452, and pivotally disposed on the base 41. The transmission member 52 can be driven by the stopper 51 to rotate the processing unit 6 around the rotation axis L1 relative to the worktable 32, and can be acted by the brake 45 to position the processing unit 6 around the rotation axis L1.

When the locking member 453 abuts against the fixing member 451 and the connecting member 452, the locking portion 454 is engaged with the positioning portion 455 and the engaging portion 456, so that a braking action is generated to position the connecting member 452 around the rotation axis L1, and the transmission member 52 connected to the connecting member 452 and the processing unit 6 are positioned around the rotation axis L1. When the hydraulic control valve 43 is controlled to make hydraulic oil enter the positioning cylinder 458 through the positioning pipe 442, the hydraulic control valve can drive the piston member 459 to move toward the base wall 411 along the second axial direction X, and further drive the locking member 453 to be spaced from the fixing member 451 by a distance, and the engaging portion 456 is disengaged from the locking portion 454, so that the connecting member 452 can rotate relative to the worktable 32 around the rotation axis L1, and the transmission member 52 can be driven by the locking member 51 to rotate relative to the worktable 32 around the rotation axis L1.

In this embodiment, the detent member 51 is a tooth row disposed on the outer peripheral surface of the piston rod 422 and extending along the third axial direction Y, and the transmission member 52 is a gear engaged with the tooth row. The processing unit 6 is disposed on a side of the base 41 opposite to the side adjacent to the worktable 32 and connected to the transmission unit 5 and can rotate around the rotation axis L1 relative to the worktable 32. The machining unit 6 comprises a spindle 61 adapted for the arrangement of the tool 91 and extending along a centre line L2.

Referring to fig. 3, 5 and 7, when the piston rod 422 moves telescopically relative to the cylinder block 421 along the third axial direction Y, the transmission unit 5 can be driven to drive the processing unit 6 to rotate around the rotation axis L1 between a first position (see fig. 3) and a second position (see fig. 7) which are different relative to the working platform 32. In the first position, the center line L2 of the spindle 61 is perpendicular to the top surface 321 of the table 32, and is suitable for machining the upper surface 921 of the object 92. In the second position, the central line L2 of the spindle 61 is parallel to the top surface 321 of the table 32, and is suitable for machining the surrounding surface 923 of the object 92.

Referring to fig. 3 and 4, the guide unit 7 includes a first linear guide 71 disposed between the column 22 and the base 41, a second linear guide 72 disposed between the base 21 and the sliding seat 31, and a third linear guide 73 disposed between the sliding seat 31 and the worktable 32.

The first linear guide 71 has two first rails 711 extending in the first axial direction Z and disposed in parallel on one side of the column 22 adjacent to the base 41, and two first sliders 712 disposed on the base 41 and slidably fitted in the first rails 711, respectively.

The second linear guide 72 has two second rails 721 extending along the second axial direction X and disposed in parallel on one side of the base 21 adjacent to the sliding seat 31, and two second sliders 722 disposed on the sliding seat 31 and slidably engaged with the second rails 721 respectively.

The third linear guide 73 has two third rail bars 731 extending in the third axial direction Y and disposed in parallel on one side of the sliding seat 31 adjacent to the table 32, and two third sliders 732 disposed on the table 32 and slidably engaged with the third rail bars 731, respectively.

The driving unit 8 includes a first lead screw 81 axially disposed on the machine pillar 22 and extending along the first axial direction Z and located between the first rails 711, a first screw 82 screwed to the first lead screw 81 and connected to the base 41 to enable the base 41 to move and position relative to the base 21 along the first axial direction Z, a first motor 87 driving the first lead screw 81, a second lead screw 83 axially disposed on the base 21 and extending along the second axial direction X and located between the second rails 721, a second screw 84 screwed to the second lead screw 83 and connected to the sliding seat 31 to enable the sliding seat 31 to move and position relative to the base 21 along the second axial direction X, a second motor 88 driving the second lead screw 83, and a third screw located on the sliding seat 31 and extending along the third axial direction Y and located between the third rails 731 The lead screw 85, a third nut 86 which is screwed to the third lead screw 85 and connected to the table 32, and can move the table 32 relative to the base 21 along the third axial direction Y and generate positioning, and a third motor 89 which drives the third lead screw 85.

Referring to fig. 3, 5 and 6, in use, the object 92 is placed on the worktable 32, the cutter 91 is disposed on the spindle 61, and then the hydraulic control valve 43 is operated to make the piston rod 422 move telescopically relative to the cylinder block 421 along the third axial direction Y according to the operation requirement, and at the same time, hydraulic oil is controlled to enter the positioning cylinder 458 through the positioning tube 442, so that the engaging portion 456 is disengaged from the engaging portion 454, so as to drive the actuating member 51 and the transmission member 52 to drive the processing unit 6 to be at the first position (see fig. 3) or at the second position (see fig. 7) relative to the worktable 32, and then the hydraulic oil is discharged from the positioning cylinder 458, so that the engaging portion 456, the engaging portion 454 and the positioning portion are engaged with each other, and the connecting member 452, 455, and the positioning portion are further engaged with each other, The transmission element 52 and the processing unit 6 are positioned around the rotation axis L1, that is, the object 92 can be processed by cutting or carving the upper surface 921 or the surrounding surface 923.

Referring to fig. 4 and 7, in addition, since the top surface 321 of the worktable 32 can rotate around the base line L3 relative to the base 322, the object 92 placed on the top surface 321 can be driven to rotate around the base line L3 relative to the base 322, so that the processing unit 6 can process four faces of the surrounding surface 923 when in the second position relative to the worktable 32, and thus the dual-purpose machine tool can process five faces of the object (i.e. five faces of the object 92 except the lower surface 922).

Referring to fig. 3, 4 and 5, in addition, by providing the first linear guide rail 71, the first lead screw 81 and the first thread insert 82, the base 41 can drive the main shaft 61 to move and position relative to the base 21 along the first axial direction Z. By providing the second linear guide 72, the second lead screw 83 and the second screw 84, the sliding seat 31 can drive the worktable 32 and the object 92 to move and position relative to the base 21 along the second axial direction X. By means of the third linear guide 73, the third lead screw 85 and the third thread sleeve 86, the table 32 can move and position the object 92 relative to the base 21 along the third axial direction Y. Therefore, since the positions of the spindle 61 and the object 92 are changed differently in the first axial direction Z, the second axial direction X, and the third axial direction Y in the above-described operation steps, the tool 91 can be operated to perform machining corresponding to a predetermined position on the object 92.

Therefore, in this embodiment, the hydraulic control valve 43 controls the hydraulic cylinder 42 to rotate the processing unit 6, and the position of the processing unit 6 does not need to be manually switched, which is very convenient in use. Further, the hydraulic cylinder 42 and the hydraulic control valve 43 are inexpensive compared to a servomotor, and therefore, the cost is low. In addition, by providing the brake 45, since the brake 45 can generate a braking action when the processing unit 6 is driven by the hydraulic control valve 43 to be at the first position or the second position relative to the worktable 32, so as to position the transmission member 52 around the rotation axis L1, the positioning can be more accurate.

It should be noted that, in the present embodiment, the dual-purpose machine tool is in the form of a vertical milling machine, and the position between the spindle 61 and the object 92 is changed along the first axial direction Z, the second axial direction X, and the third axial direction Y, but in other implementation forms, the dual-purpose machine tool may also be in other forms (for example, a shaper, etc.), and the same effect can be achieved as long as the position between the spindle 61 and the object 92 is changed along the first axial direction Z, the second axial direction X, and the third axial direction Y.

In addition, in the present embodiment, the brake 45 is in the form of a hydraulic electromagnetic brake, however, in other variations, the brake 45 may also be in other forms (e.g., a mechanical brake, an electromagnetic brake, etc.), and the same effect can be achieved as long as the transmission member 52 is positioned about the rotation axis L1.

It should be noted that, in the present embodiment, the oil pressure cylinder 42 is in the form of a double-cylinder oil pressure, however, in another embodiment, the hydraulic cylinder 42 may be a single cylinder hydraulic cylinder, that is, the cylinder block 421 of the hydraulic cylinder 42 has only one cylinder portion 423, and the guide pipe set 44 has only one moving pipe 441 and one positioning pipe 442, so long as the hydraulic control valve 43 can control hydraulic oil to enter the cylinder set 421 through the moving pipe 441 and the positioning pipe 442 to respectively move and position the piston rod 422 in the opposite direction along the third axial direction Y, the detent member 51 is connected to the outer peripheral surface of the piston rod 422 and can be driven by the movement of the piston rod 422 to rotate the transmission member 52 around the rotation axis L1, so as to achieve the same effect.

Further, in the present embodiment, when the machining unit 6 is at the first position, the center line L2 of the spindle 61 is perpendicular to the top surface 321 of the table 32, and when the machining unit 6 is at the second position, the center line L2 of the spindle 61 is parallel to the top surface 321 of the table 32, so that the center line L2 of the spindle 61 rotates substantially 90 degrees around the rotation axis L1 between the first position and the second position, however, without being limited thereto, in other embodiments, the angle of rotation between the first position and the second position of the center line L2 of the spindle 61 may be other angles (for example, 45 degrees), as long as the center line L2 corresponds to the upper surface 921 and the surrounding surface 923 of the object 92 respectively when the first position and the second position, the same effect can be achieved.

In addition, in the present embodiment, the detent member 51 and the transmission member 52 are in the form of a gear row and a gear, respectively, however, in other embodiments, other forms (for example, a slider and a crank, a transmission chain and a gear, etc.) may also be adopted, as long as the detent member 51 and the transmission member 52 can be driven by the movement of the piston rod 422 to rotate the processing unit 6 around the rotation axis L1, and the same effect can be achieved.

It should be noted that the technology for operating the top 321 to rotate around the base line L3 relative to the base 322 can be realized by the technology of a servo motor, the technology similar to the hydraulic cylinder 42, the hydraulic control valve 43 and the guide pipe set 44, and the technology similar to the brake 45 can be further added to improve the positioning accuracy.

In summary, by providing the piston rod 422, the cylinder block 421 and the transmission unit 5, when the piston rod 422 moves relative to the cylinder block 421 in the third axial direction Y in a telescopic manner, the transmission unit 5 can be transmitted to drive the machining unit 6 to rotate around the rotation axis L1 between the first position and the second position relative to the worktable 32, and there is no need to switch the position of the machining unit 6 by a hand or a servo motor, so that the advantages of convenience and low cost are obtained. In addition, by providing the brake 45, since the brake 45 can generate a braking action when the machining unit 6 is driven by the hydraulic control valve 43 to be at the first position or the second position relative to the worktable 32, the positioning of the transmission member 52 around the rotation axis L1 is more accurate, and thus the objective of the present invention can be achieved.

Claims (10)

1. The utility model provides a dual-purpose machine tool, contains organism unit, and operation unit, the organism unit includes the base, and by the column that first axial extension is followed to the base, and the definition is perpendicular first axial second axial, the operation unit including set up in the workstation of base, the workstation has top surface, its characterized in that: the dual-purpose machine tool further comprises a connecting unit, a transmission unit and a processing unit, wherein the connecting unit comprises a base arranged on the machine column and an oil hydraulic cylinder arranged on the base, the oil hydraulic cylinder is provided with a cylinder body group arranged on the base and a piston rod capable of moving in a telescopic mode relative to the cylinder body group, the transmission unit is arranged on the base and connected with the piston rod and driven by the piston rod to be linked, the processing unit is arranged on one side, relatively adjacent to the workbench, of the base and connected with the transmission unit and driven by the transmission unit to rotate between a first position and a second position, relative to the workbench, around a rotating axis extending along the second axial direction, and the processing unit comprises a main shaft extending along a central line.

2. The dual purpose machine tool of claim 1, wherein: the base of the connecting unit is spaced from the base of the body unit along the first axial direction.

3. The dual purpose machine tool of claim 1, wherein: when the machining unit is at the first position relative to the workbench, the central line of the spindle is vertical to the top surface of the workbench, and when the machining unit is at the second position, the central line of the spindle is parallel to the top surface of the workbench.

4. The dual purpose machine tool of claim 3, wherein: the piston rod of the connecting unit generates telescopic movement relative to the cylinder block along a third axial direction perpendicular to the first axial direction and the second axial direction.

5. The dual purpose machine tool of claim 4, wherein: the connecting unit further comprises a hydraulic control valve which can control and lead hydraulic oil into the cylinder block group.

6. The dual purpose machine tool of claim 5, wherein: the transmission unit comprises a stopper arranged on the outer peripheral surface of the piston rod and a transmission part which is pivoted on the base and can be driven by the stopper to enable the processing unit to rotate around the rotation axis.

7. The dual purpose machine tool of claim 6, wherein: the brake piece of the transmission unit is a gear row which is arranged on the outer peripheral surface of the piston rod and extends along the third axial direction, and the transmission piece is a gear meshed with the gear row.

8. The dual purpose machine tool of claim 6, wherein: the connecting unit further comprises a brake which is connected to the transmission piece and can enable the machining unit to be positioned around the rotating axis.

9. The dual purpose machine tool of claim 5, wherein: the cylinder block group of the connecting unit is provided with two cylinder parts which are spaced along the third axial direction, and the piston rod is arranged between the cylinder parts.

10. The dual purpose machine tool of claim 9, wherein: the connecting unit further comprises a guide pipe group connected between the oil hydraulic cylinder and the hydraulic control valve, the guide pipe group is provided with two moving pipes which are connected with the hydraulic control valve at intervals and connected with the cylinder body respectively, and the hydraulic control valve can control hydraulic oil to enter the cylinder body group through the moving pipes so that the piston rod moves towards two opposite directions along the third axial direction respectively.

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