Longitudinal cutting machine tool tool table and longitudinal cutting machine tool

Abstract

The utility model provides a longitudinal cutting machine tool tool table and a longitudinal cutting machine tool, and relates to the technical field of longitudinal cutting machine tools, the longitudinal cutting machine tool tool table comprises a tool sliding table, a milling device and a sliding table cooling oil way, wherein one side of the tool sliding table is used for assembling a nut so as to be matched with a lead screw to move up and down; the milling device is assembled on the side, away from the nut, of the tool sliding table. The sliding table cooling oil way is arranged on the tool sliding table, communicates with the oil cooler and is used for cooling the tool sliding table. In this way, temperature rise and thermal deformation of the tool sliding table can be effectively restrained, the feeding precision of the lead screw pair is stabilized, precision errors caused by heating are reduced, the machining precision and stability are improved, and therefore the high-precision machining requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to longitudinal cutting machine tool technical field especially, relates to a longitudinal cutting machine tool tool table and longitudinal cutting machine tool. BACKGROUND

[0002] In the processing of numerical control longitudinal cutting machine tool, the servo motor of milling power device and its internal rotating bearing will produce a large amount of heat when running at high speed.These heat is transferred to the tool table through conduction, causing the tool table temperature to rise and thermal deformation.The thermal deformation of the tool table not only affects the stability of the overall structure, but also causes the precision of the feed system to decrease.

[0003] In addition, the tool table is movably arranged on the rack through the screw rod pair, and a large amount of heat will be generated due to friction during long-time operation.The screw rod will expand after being heated, causing the length of the screw rod to change, which causes the position of the nut cooperating with the screw rod to deviate, thereby affecting the feeding accuracy of the machine tool.Because the tool table is installed with milling devices, end face cutter assemblies, turning tool assemblies and other cutting tools, the positions of these tools deviate with the thermal deformation of the tool table, ultimately affecting the machining accuracy of the workpiece.

[0004] Currently, the same type of longitudinal cutting machine tool on the market usually relies on natural heat dissipation or local air cooling to cool down when facing the above heat problems, but these methods cannot effectively solve the precision stability problem in high temperature environment.Especially during long-time continuous machining, heat accumulation is intensified, causing the precision of the machine tool to decrease and affecting the machining quality.

[0005] Therefore, a longitudinal cutting machine tool tool table and longitudinal cutting machine tool capable of effectively controlling the temperature rise of the tool table and having high overall machining precision and stability are needed. UTILITY MODEL CONTENTS

[0006] The utility model discloses a longitudinal cutting machine tool tool table and longitudinal cutting machine tool to solve at least one of the above technical problems, which has the advantages of effectively controlling the temperature rise of the tool table and high overall machining precision and stability.

[0007] To achieve the above object, the utility model provides a longitudinal cutting machine tool tool table in one aspect, which comprises:

[0008] The tool sliding table is used to assemble the nut on one side to realize up-down movement in cooperation with the screw rod;

[0009] The milling device is assembled on the side of the tool sliding table away from the nut;

[0010] The sliding table cooling oil circuit is arranged on the tool sliding table and communicates with the oil cooling machine to cool the tool sliding table.

[0011] Optionally, the slide cooling oil circuit comprises: a first oil inlet hole, a first cooling oil channel and a first oil outlet hole connected in sequence.

[0012] The first oil inlet hole and the first oil outlet hole are arranged on one side of the tool slide and are in communication with the oil cooling machine.

[0013] The first cooling oil channel is arranged inside the tool slide and is arranged correspondingly along the installation area of the lead screw and the installation area of the milling device.

[0014] Optionally, the first cooling oil channel comprises: a first vertical section, a first horizontal section and a second vertical section connected in sequence, the first vertical section is connected with the first oil inlet hole, the first horizontal section extends along the length direction of the tool slide, and the second vertical section is connected with the first oil outlet hole and is arranged symmetrically with the first vertical section with respect to the lead screw.

[0015] Optionally, the first cooling oil channel further comprises: a second horizontal section, a third vertical section, a third horizontal section and a fourth vertical section; one end of the first vertical section away from the first horizontal section is connected with the first oil inlet hole through the second horizontal section, the third vertical section connected in sequence; one end of the second vertical section away from the first horizontal section is connected with the first oil outlet hole through the third horizontal section, the fourth vertical section connected in sequence; the second horizontal section and the third horizontal section both extend along the width direction of the tool slide, and the third vertical section and the fourth vertical section are both arranged vertically.

[0016] Optionally, one end of the first vertical section and the second vertical section away from the first horizontal section, one end of the second horizontal section away from the first vertical section, one end of the third horizontal section away from the second vertical section, and one end of the first horizontal section away from the second vertical section all penetrate through the tool slide and close the opening penetrating through the tool slide by sealing screws.

[0017] Optionally, the first oil inlet hole and the first oil outlet hole are both stepped holes; the slide cooling oil circuit further comprises: an embedded pipe joint assembled in the first oil inlet hole and the first oil outlet hole; the first oil inlet hole and the first oil outlet hole are in communication with the oil cooling machine through the embedded pipe joint.

[0018] Optionally, the milling device comprises: a milling assembly box detachably arranged on the tool slide, an assembly box cover detachably arranged on the milling assembly box, a driving motor detachably arranged on the assembly box cover, a transmission gear set arranged in the milling assembly box and / or the assembly box cover and in transmission connection with the driving motor, and a plurality of rotary cutters arranged in the milling assembly box and connected with the transmission gear set and penetrating out of the milling assembly box.

[0019] Optionally, the milling device further comprises a milling box cooling oil circuit arranged in the box cover of the assembly box; the milling box cooling oil circuit comprises a second oil inlet hole, a second cooling oil channel and a second oil outlet hole connected in sequence;

[0020] The second oil inlet hole and the second oil outlet hole are arranged on one side of the tool sliding table and communicate with the oil cooling machine; the second cooling oil channel is arranged in the box cover of the assembly box around the transmission gear set.

[0021] Optionally, the longitudinal cutting machine tool table further comprises an end face cutter assembly and a turning tool assembly assembled on the side of the tool sliding table away from the nut, and a plurality of sliding blocks assembled on the side of the tool sliding table away from the milling device; the end face cutter assembly and the turning tool assembly are respectively located on one side of the milling device; the plurality of sliding blocks are in sliding cooperation with the vertically arranged sliding rails.

[0022] The longitudinal cutting machine tool table is assembled with the nut, the sliding table cooling oil circuit communicates with the oil cooling machine; the control system is used for controlling the movement of the driving member and the longitudinal cutting machine tool table, and controlling the work of the oil cooling machine, so that the tool sliding table maintains constant temperature during the machining process.

[0023] Compared with the prior art, the longitudinal cutting machine tool table has the following advantages:

[0024] Since the cooling oil circuit is arranged in the tool sliding table of the longitudinal cutting machine tool table and communicates with the external oil cooling machine, the heat generated by the milling power device and the screw rod during operation can be quickly taken away, and active cooling is realized. This design effectively suppresses the temperature rise and thermal deformation of the tool sliding table, stabilizes the feeding accuracy of the screw pair, reduces the accuracy error caused by heating, improves the machining accuracy and stability, and thus meets the high-precision machining requirements. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0026] Figure 1 It is a structure schematic view from the perspective of the embodiment of the present application.

[0027] Figure 2Structure schematic diagram of another view angle of the embodiment of the utility model;

[0028] Figure 3 Structure exploded view of the embodiment of the utility model;

[0029] Figure 4 Structure schematic diagram of tool slide platform of the embodiment of the utility model;

[0030] Figure 5 Top view of tool slide platform of the embodiment of the utility model;

[0031] Figure 6 Structure schematic diagram of another view angle of the embodiment of the utility model; Figure 5 Sectional view along A-A line in the structure schematic diagram of another view angle of the embodiment of the utility model; Sectional view along B-B line in the structure schematic diagram of another view angle of the embodiment of the utility model;

[0032] Sectional view along C-C line in the structure schematic diagram of another view angle of the embodiment of the utility model; Figure 7 Sectional view along D-D line in the structure schematic diagram of another view angle of the embodiment of the utility model. Figure 5

[0033] Structure schematic diagram of another view angle of the embodiment of the utility model; Figure 8 Figure 5 Structure exploded schematic diagram of part structure of tool slide platform and slide platform cooling oil circuit of the embodiment of the utility model under one view angle;

[0034] Figure 9 Structure exploded schematic diagram of part structure of tool slide platform and slide platform cooling oil circuit of the embodiment of the utility model under another view angle;

[0035] Figure 10 Structure exploded schematic diagram of part structure of milling device of the embodiment of the utility model;

[0036] Figure 11 Structure schematic diagram of assembly box cover of the embodiment of the utility model;

[0037] Figure 12 Structure schematic diagram of assembly box cover of the embodiment of the utility model;

[0038] Figure 13 Sectional view along D-D line in the structure schematic diagram of another view angle of the embodiment of the utility model.

[0039] Figure 14 Figure 13

[0040] Explanation of reference signs

[0041] 100-longitudinal cutting machine tool platform;

[0042] 1-tool slide platform;

[0043] 2-milling device; 21-driving motor; 22-milling assembly box; 23-assembly box cover; 24-transmission gear set; 25-rotary cutter; a-receiving slot; 26-bearing; ​

[0044] o1 - first oil inlet hole; 31 - first cooling oil channel; 311 - third vertical section; 312 - second horizontal section; 313 - first vertical section; 314 - first horizontal section; 315 - second vertical section; 316 - third horizontal section; 317 - fourth vertical section; o2 - first oil outlet hole; 32 - embedded pipe joint; 33 - oil sealing screw; b - opening;

[0045] o3 - second oil inlet hole; 41 - second cooling oil channel; o4 - second oil outlet hole;

[0046] 5 - end face cutter assembly;

[0047] 6 - turning tool assembly;

[0048] 7 - sliding block;

[0049] 200 - screw rod pair; 210 - nut; 220 - screw rod;

[0050] 300 - sliding rail. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0052] It should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "back", "side", "circumferential" and the like in the utility model indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the first, second and the like are only for distinguishing a plurality of components or structures with the same or similar structures, and do not indicate a certain special limitation on the arrangement order or connection relationship.

[0053] Please refer to Figures 1 to 14 The utility model embodiment provides a longitudinal cutting machine tool table 100 for assembling to longitudinal cutting machine (not shown in the drawing), realizes the processing to work piece. This longitudinal cutting machine tool table 100 includes: tool sliding table 1, milling device 2 and sliding table cooling oil circuit.

[0054] The tool slide 1 is used to carry a tool and implement multi-process machining on a workpiece. The tool slide 1 is plate-shaped, and one side thereof is used to assemble a nut 210 to cooperate with a lead screw 220 to realize up and down movement, thereby realizing accurate feeding of a tool assembled on the tool slide 1.

[0055] The milling device 2 is assembled on the side of the tool slide 1 away from the nut 210. It can be understood that the milling device 2 can include a driving motor 21, a milling assembly box 22, an assembly box cover 23, a transmission device, and a machining tool (not shown in the figure). It can be understood that the milling device 2 is prior art, and therefore will not be described in detail here.

[0056] The slide cooling oil circuit is arranged on the tool slide 1 and communicates with an oil cooling machine (not shown in the figure) to cool the tool slide 1. Specifically, the slide cooling oil circuit can communicate with the oil cooling machine through an oil pipe (not shown in the figure). Alternatively, the slide cooling oil circuit can be arranged inside the tool slide 1 or on the surface of the tool slide 1, and can be arranged as one slide cooling oil circuit or multiple slide cooling oil circuits, as long as it can transfer heat on the tool slide 1 out, and therefore will not be limited here.

[0057] Since the longitudinal cutting machine tool slide 100 is arranged with a cooling oil circuit inside the tool slide 1 and communicates with an external oil cooling machine, heat generated by the milling power device and the lead screw 220 can be quickly taken away to realize active cooling. This design effectively suppresses the temperature rise and thermal deformation of the tool slide 1, stabilizes the feeding accuracy of the lead screw pair 200, reduces the accuracy error caused by heating, improves the machining accuracy and stability, thereby meeting the high-precision machining requirement.

[0058] In order to guarantee the heat dissipation effect of the slide cooling oil circuit while simplifying the arrangement of the slide cooling oil circuit, it is alternatively provided that Figure 6 , Figure 9 and Figure 10 In this embodiment, the slide cooling oil circuit includes a first oil inlet hole o1, a first cooling oil channel 31, and a first oil outlet hole o2 that are sequentially communicated. The cooling liquid enters the first oil inlet hole o1 from the oil cooling machine, flows through the first cooling oil channel 31, and finally returns to the oil cooling machine through the first oil outlet hole o2 to quickly take away the heat in the tool slide 1.

[0059] Optionally, the first oil inlet hole o1 and the first oil outlet hole o2 are arranged on one side of the tool slide 1 and communicate with the oil cooling machine. Specifically, the first oil inlet hole o1 and the first oil outlet hole o2 are arranged on the upper side of the tool slide 1. The first cooling oil channel 31 is arranged inside the tool slide 1 and corresponds to the installation area of the screw nut 210 and the installation area of the milling device 2. It can be understood that corresponding to the installation area of the screw nut 210 and the installation area of the milling device 2 means that the first cooling oil channel 31 overlaps the installation area of the screw nut 210 and the installation area of the milling device 2, or is arranged in the adjacent area, so that the heat can be efficiently discharged through one first cooling oil channel 31 to achieve rapid cooling.

[0060] Optionally, please refer to Figure 6 and Figure 2 In this embodiment, the first cooling oil channel 31 includes: a first vertical section 313, a first horizontal section 314 and a second vertical section 315 communicated in sequence. The first vertical section 313 communicates with the first oil inlet hole o1, the first horizontal section 314 extends along the length direction of the tool slide 1, and the second vertical section 315 communicates with the first oil outlet hole o2 and is arranged symmetrically with the first vertical section 313 relative to the screw rod 220. Since the first cooling oil channel 31 is arranged around the adjacent area of the screw rod pair 200, the heat transmitted by the screw rod pair 200 can be quickly taken away.

[0061] Optionally, please refer to Figures 6 to 8 In this embodiment, the first cooling oil channel 31 further includes: a second horizontal section 312, a third vertical section 311, a third horizontal section 316 and a fourth vertical section 317. One end of the first vertical section 313 away from the first horizontal section 314 communicates with the first oil inlet hole o1 through the second horizontal section 312 and the third vertical section 311 communicated in sequence. One end of the second vertical section 315 away from the first horizontal section 314 communicates with the first oil outlet hole o2 through the third horizontal section 316 and the fourth vertical section 317 communicated in sequence; the second horizontal section 312 and the third horizontal section 316 both extend along the width direction of the tool slide 1, and the third vertical section 311 and the fourth vertical section 317 are both vertically arranged. In this way, the first cooling oil channel 31 is arranged along the vertical direction, the width direction and the length direction of the tool slide 1, so that the first cooling oil channel 31 covers the vertical direction, the width direction and the length direction, which can ensure that the cooling liquid flows smoothly in the entire tool slide 1 and avoid local overheating or cooling failure caused by uneven cooling.

[0062] In order to facilitate the machining of the first cooling oil channel 31, optionally, please refer to Figure 4 , Figure 9 and Figure 10In the embodiment, the first vertical section 313 and the second vertical section 315 are penetrated through the tool slide 1 from one end of the first horizontal section 314, the second horizontal section 312 is penetrated through the tool slide 1 from one end of the first vertical section 313, the third horizontal section 316 is penetrated through the tool slide 1 from one end of the second vertical section 315, and the first horizontal section 314 is penetrated through the tool slide 1 from one end of the second vertical section 315, and the opening b penetrated through the tool slide 1 is closed by the oil sealing screw 33. In this way, the machining process can be simplified, and the machining of the first cooling oil channel 31 is facilitated.

[0063] In order to facilitate the quick connection of the first oil inlet hole o1, the first oil outlet hole o2 and the oil pipe, optionally, please refer to Figure 6 and Figure 9 In the embodiment, the first oil inlet hole o1 and the first oil outlet hole o2 are both stepped holes; the slide cooling oil circuit further comprises an embedded pipe joint 32 fitted in the first oil inlet hole o1 and the first oil outlet hole o2. The first oil inlet hole o1 and the first oil outlet hole o2 are in communication with the oil cooler through the embedded pipe joint 32.

[0064] Optionally, please refer to Figure 1 and Figure 11 In the embodiment, the milling device 2 comprises a milling assembly box 22, an assembly box cover 23, a driving motor 21, a transmission gear set 24, and a plurality of rotary cutters 25. The milling assembly box 22 is detachably arranged on the tool slide 1. The assembly box cover 23 is detachably arranged on the milling assembly box 22. The driving motor 21 is detachably arranged on the assembly box cover 23. The transmission gear set 24 is arranged in the milling assembly box 22 and / or the assembly box cover 23 and is in transmission connection with the driving motor 21. The plurality of rotary cutters 25 are arranged in the milling assembly box 22 and are connected with the transmission gear set 24 and penetrate out of the milling assembly box 22. Specifically, in the embodiment, the detachable connection of the milling assembly, the assembly box cover 23 and the driving motor 21 can be connected by bolts (not shown in the figure). The driving motor 21 can be a servo motor. The milling assembly box 22 and / or the assembly box cover 23 have corresponding accommodating grooves a. The plurality of rotary cutters 25 are connected with the transmission gear set 24, one end of which away from the transmission gear set 24 penetrates out of the milling assembly box 22 and is in rotational connection with the milling assembly box 22 and / or the assembly box cover 23 through the bearing 26.

[0065] In order to improve the cooling effect of the longitudinal cutting machine tool slide 100, further, please refer to Figures 12 to 14In the embodiment, the milling device 2 further comprises a milling box cooling oil path arranged in the assembly box cover 23; the milling box cooling oil path comprises a second oil inlet hole o3, a second cooling oil channel 41 and a second oil outlet hole o4 communicated in sequence; the second oil inlet hole o3 and the second oil outlet hole o4 are arranged on one side of the tool slide 1 and are communicated with an oil cooling machine (not shown in the figure); the second cooling oil channel 41 is arranged in the assembly box cover 23 around the transmission gear set 24. In this way, the milling device 2 can be cooled, the precision error caused by overheating of the milling device 2 is reduced, the heat transmitted from the milling device 2 to the tool slide 1 is reduced, and the cooling effect of the longitudinal cutting machine tool table 100 is further improved.

[0066] Optionally, please refer to Figures 1 to 3 In the embodiment, the longitudinal cutting machine tool table 100 further comprises an end face cutter assembly 5, a turning tool assembly 6 and a plurality of sliding blocks 7. The end face cutter assembly 5 and the turning tool assembly 6 are assembled on the side of the tool slide 1 away from the nut 210. The end face cutter assembly 5 and the turning tool assembly 6 are respectively located on one side of the milling device 2. Specifically, in the embodiment, the end face cutter assembly 5 is located on the left side of the milling device 2, the turning tool assembly 6 is located on the right side of the milling device 2, and the milling device 2 is located in the middle. In this way, the milling device 2 has a large overlapping area with the nut 210 in the installation area of the tool slide 1 in space. Specifically, the end face cutter assembly 5 and the turning tool assembly 6 are prior art, and therefore will not be described in detail here. The plurality of sliding blocks 7 are assembled on the side of the tool slide 1 away from the milling device 2, and the plurality of sliding blocks 7 are in sliding cooperation with the vertically arranged sliding rail 300 to limit the rotational freedom of the tool slide 1, so that the tool slide 1 realizes up-down movement under the cooperation of the screw pair 200.

[0067] Another aspect of the embodiment of the utility model provides a longitudinal cutting machine (not shown in the figure), which comprises a rack (not shown in the figure), a screw rod 220, a nut 210, an oil cooling machine (not shown in the figure), a control system (not shown in the figure) and the longitudinal cutting machine tool table 100 as described above. The screw rod 220 is rotatably assembled on the rack; the nut 210 is in threaded cooperation with the screw rod 220 and is assembled on one side of the tool slide 1 of the longitudinal cutting machine tool table 100; a driving member is assembled on the rack and drives the screw rod 220 to rotate; the slide cooling oil path of the longitudinal cutting machine tool table 100 is communicated with the oil cooling machine; the control system is used to control the movement of the driving member and the longitudinal cutting machine tool table 100 and control the working of the oil cooling machine, so that the tool slide 1 keeps constant temperature in the machining process. Specifically, the oil cooling machine, the control system and the control system controlling the movement of the driving member and the longitudinal cutting machine tool table 100 and controlling the working of the oil cooling machine are prior art, and therefore will not be described in detail here. Since the longitudinal cutting machine has all the structures and connection relationships of the longitudinal cutting machine tool table 100, it has all the advantages of the longitudinal cutting machine tool table 100, which will not be described here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part or all of the technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A slitting machine tool station, characterized by, The utility model relates to a milling machine tool slide cooling oil circuit, comprising: a tool slide (1) on one side of which a nut (210) is mounted to cooperate with a lead screw (220) to achieve up and down movement; a milling device (2) mounted on the tool slide (1) on the side away from the nut (210); a slide cooling oil circuit provided in the tool slide (1) and connected to an oil cooling machine to cool the tool slide (1).

2. The slitting machine tool station of claim 1, wherein, The slide cooling oil circuit comprises a first oil inlet hole (o1), a first cooling oil channel (31) and a first oil outlet hole (o2) connected in sequence; The first oil inlet hole (o1) and the first oil outlet hole (o2) are provided on one side of the tool slide (1) and connected to the oil cooling machine; The first cooling oil channel (31) is provided inside the tool slide (1) and corresponds to the mounting area of the nut (210) and the mounting area of the milling device (2).

3. The slitting machine tool station of claim 2, wherein, The first cooling oil channel (31) comprises a first vertical section (313), a first horizontal section (314) and a second vertical section (315) connected in sequence, the first vertical section (313) is connected to the first oil inlet hole (o1), the first horizontal section (314) extends along the length direction of the tool slide (1), and the second vertical section (315) is connected to the first oil outlet hole (o2) and is symmetrically arranged with the first vertical section (313) relative to the lead screw (220).

4. The slitting machine tool station of claim 3, wherein, The first cooling oil channel (31) further comprises a second horizontal section (312), a third vertical section (311), a third horizontal section (316) and a fourth vertical section (317); one end of the first vertical section (313) away from the first horizontal section (314) is connected to the first oil inlet hole (o1) through the second horizontal section (312) and the third vertical section (311) connected in sequence; one end of the second vertical section (315) away from the first horizontal section (314) is connected to the first oil outlet hole (o2) through the third horizontal section (316) and the fourth vertical section (317) connected in sequence; the second horizontal section (312) and the third horizontal section (316) extend along the width direction of the tool slide (1), and the third vertical section (311) and the fourth vertical section (317) are vertically arranged.

5. The slitting machine tool station of claim 4, wherein, One end of the first vertical section (313) and the second vertical section (315) away from the first horizontal section (314), one end of the second horizontal section (312) away from the first vertical section (313), one end of the third horizontal section (316) away from the second vertical section (315), and one end of the first horizontal section (314) away from the second vertical section (315) all penetrate the tool slide (1) and close the openings (b) penetrating the tool slide (1) through oil sealing screws (33).

6. The slitting machine tool station of claim 3, wherein, The first oil inlet hole (o1) and the first oil outlet hole (o2) are both stepped holes; the sliding table cooling oil circuit further comprises: an embedded pipe joint (32) fitted in the first oil inlet hole (o1) and the first oil outlet hole (o2); the first oil inlet hole (o1) and the first oil outlet hole (o2) are communicated with the oil cooling machine through the embedded pipe joint (32).

7. The slitting machine tool station of claim 1 wherein, The milling device (2) comprises: a milling assembly box (22) detachably arranged on the tool sliding table (1), an assembly box cover (23) detachably arranged on the milling assembly box (22), a driving motor (21) detachably arranged on the assembly box cover (23), a transmission gear set (24) arranged in the milling assembly box (22) and / or the assembly box cover (23) and in transmission connection with the driving motor (21), and a plurality of rotary cutters (25) arranged in the milling assembly box (22) and connected with the transmission gear set (24) and passing out of the milling assembly box (22).

8. The slitting machine tool station of claim 7, wherein, The milling device (2) further comprises: a milling box cooling oil circuit arranged in the assembly box cover (23); the milling box cooling oil circuit comprises: a second oil inlet hole (o3), a second cooling oil channel (41) and a second oil outlet hole (o4) communicated in sequence; The second oil inlet hole (o3) and the second oil outlet hole (o4) are arranged on one side of the tool sliding table (1) and communicated with the oil cooling machine; the second cooling oil channel (41) is arranged in the assembly box cover (23) around the transmission gear set (24).

9. The slitting machine tool station of claim 1 wherein, Further comprising: an end face cutter assembly (5) and a turning cutter assembly (6) fitted on one side of the tool sliding table (1) away from the nut (210), and a plurality of sliding blocks (7) fitted on one side of the tool sliding table (1) away from the milling device (2); the end face cutter assembly (5) and the turning cutter assembly (6) are respectively located on one side of the milling device (2); the plurality of sliding blocks (7) are in sliding cooperation with a vertically arranged sliding rail (300).

10. A slitting machine tool, characterized in that Comprising: a rack, a screw rod (220) rotatably fitted on the rack, a nut (210) in threaded cooperation with the screw rod (220), a driving member driving the screw rod (220) to rotate, an oil cooling machine, a control system, and the longitudinal cutting machine tool table according to any one of claims 1-9; the longitudinal cutting machine tool table is fitted with the nut (210), the sliding table cooling oil circuit is communicated with the oil cooling machine; the control system is used to control the driving member and the movement of the longitudinal cutting machine tool table, and control the oil cooling machine to work, so that the tool sliding table (1) maintains constant temperature during machining.

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