A machine tool for deep hole processing

Abstract

The utility model provides a machine tool for deep hole processing, which belongs to the technical field of hole processing. The machine tool for deep hole processing comprises a processing table, a vertical plate is fixedly installed on the processing table, a lifting box with a sliding connection is provided on the vertical plate, and a clamping assembly is fixedly installed on the processing table; a driving wheel is rotatably connected to the inner top wall of the lifting box, two driven wheels are meshingly connected to the driving wheel, and driven columns are fixedly installed in the middle of the driven wheels; a square frame is fixedly installed on the bottom wall of the lifting box, two adjustment grooves are respectively opened on the square frame along its diagonal line, two adjustment frames are slidably connected to the bottom wall of the square frame, and a positioning frame is fixedly connected to one end of the adjustment frame close to the middle of the lifting box; a drill shaft is rotatably connected in the positioning frame, and a hole processing adjustment assembly is provided between the drill shaft and the corresponding driven column; the utility model solves the technical problem that the positions of multiple drill bits are fixed, it is inconvenient to adjust the positions of multiple processing holes, and the processing of holes is restricted.

Description

Technical Field

[0001] The utility model belongs to the technical field of hole processing, and specifically relates to a machine tool for deep hole processing. Background Art

[0002] At present, the manufacturing and processing of molds usually uses drilling machine tools. Deep hole drilling machines are different from traditional hole processing methods. They mainly rely on specific drilling technology. Special machine tools for drilling deep hole systems and precision shallow holes with an aspect ratio greater than 10 are collectively called deep hole drilling machines.

[0003] The Chinese utility model patent application number: CN202321086884.8 (publication number: CN219900315U) proposes a multi-axis deep hole drilling machine capable of rapid cooling, comprising a lifting assembly and a multi-axis drilling assembly, the lifting assembly being mounted on a fixed plate, the multi-axis drilling assembly being mounted on the lifting assembly, the multi-axis machining assembly being used to drill multiple holes in a machining workpiece at the same time, the clamping assembly being mounted on the lifting assembly, and the clamping assembly being used to clamp the machining workpiece;

[0004] The Chinese utility model patent with application number: CN202110800912.7 (publication number: CN113600867A) discloses a double-head CNC deep hole drilling machine, including a main body, a support rod, a base, an adjustment device, a driving device, a dust extraction device and a drill, the driving device includes a driving motor, a first gear and a second gear, the drill is fixedly connected to the second gear, and the adjustment device drives the driving device to move longitudinally, so as to facilitate the adjustment of the processing angle and improve the quality of the drilling;

[0005] The above patents all have multiple drill bits that can produce multiple drilling positions. However, when the workpiece is fixed and cannot be moved, it is inconvenient to adjust the position of the hole processing on the workpiece, and the adjacent positions between the multiple drill bits are fixed, which makes it inconvenient to adjust the positions between the multiple processed holes, so that the processing of the holes is limited. Utility Model Content

[0006] In view of this, the utility model provides a deep hole processing machine tool, which is used to solve the technical problem that the positions of multiple drill bits are fixed, it is inconvenient to adjust the positions of multiple processing holes, and the processing of the holes is restricted.

[0007] The utility model is achieved in this way:

[0008] The utility model provides a deep hole processing machine tool, comprising a processing table, on which a vertical plate is fixedly installed, wherein a lifting box for adjusting the position of a tool which is slidably connected is provided on the vertical plate, and a clamping assembly for clamping a workpiece is fixedly installed on the processing table;

[0009] The lifting box is a hollow structure with an opening at the bottom wall. A driving wheel is rotatably connected to the inner top wall of the lifting box. Two driven wheels are meshingly connected to the driving wheel. A driven column is fixedly installed in the middle of each driven wheel.

[0010] A square frame is fixedly installed on the bottom wall of the lifting box, and two right-angle adjustment slots are respectively opened on the square frame along its diagonal lines. Two adjustment frames are slidably connected to the bottom wall of the square frame through the adjustment slots, and a positioning frame is fixedly connected to one end of the adjustment frame close to the middle of the lifting box;

[0011] The positioning frame is a hollow cylindrical structure, a drill shaft is rotatably connected inside the positioning frame, and a hole processing adjustment component is provided between the drill shaft and the corresponding driven column.

[0012] On the basis of the above technical solution, the deep hole processing machine tool of the utility model can also be improved as follows:

[0013] Furthermore, the adjustment frame is provided with a plurality of adjustment holes which are evenly spaced and penetrate through the adjustment frame, and the distance between two adjacent adjustment holes is the same as the distance between two adjustment slots;

[0014] The adjusting groove and the corresponding adjusting hole are both plugged with studs, and nuts threadedly connected to the studs are both abutted on the top wall of the square frame and the bottom wall of the adjusting frame.

[0015] Furthermore, a driving motor is fixedly mounted on the top wall of the lifting box, an output shaft of the driving motor passes through the lifting box and is fixedly connected to the middle of the driving wheel, and the top of the driven column is rotatably connected to the inner top wall of the lifting box.

[0016] Furthermore, the hole processing adjustment assembly includes a first U-shaped sleeve A fixedly installed at the bottom end of the driven column and opening downward, the two ends of a first cross connecting shaft are rotatably connected in the first U-shaped sleeve A, the other two ends of the first cross connecting shaft are rotatably connected in a first U-shaped sleeve B opened upward, and a guide rod is fixedly installed at the bottom end of the first U-shaped sleeve B.

[0017] Furthermore, a guide sleeve is sleeved on the guide rod, and a second U-shaped sleeve A with an opening downward is fixedly installed on the bottom end of the guide sleeve. Two ends of a second cross connecting shaft are rotatably connected in the second U-shaped sleeve A, and the other two ends of the second cross connecting shaft are rotatably connected in the second U-shaped sleeve B with an opening upward, and a drill shaft is fixedly installed on the bottom end of the second U-shaped sleeve B.

[0018] Furthermore, a plurality of limit strips are fixedly installed circumferentially equidistantly on the outer wall of the guide rod, a plurality of limit grooves are opened circumferentially equidistantly on the inner wall of the guide sleeve, and the limit strips are slidably connected in the corresponding limit grooves.

[0019] Furthermore, two slideways are fixedly installed on the vertical plate, and two slide rails are fixedly installed on the rear wall of the lifting box, and the slide rails are slidably connected to the slideways.

[0020] Furthermore, a top plate is fixedly mounted on the top of the vertical plate, a fixed end of a telescopic cylinder is fixedly mounted on the top plate, and a movable end of the telescopic cylinder extends downward and an end portion is fixedly mounted on the lifting box.

[0021] Compared with the prior art, the beneficial effects of a deep hole processing machine tool provided by the utility model are:

[0022] By setting the adjustment slot on the square frame and the adjustment hole on the adjustment frame, it is convenient to adjust the position of the drill shaft in the positioning frame, and it is convenient to adjust the distance of a single tool relative to the workpiece. When the position of the workpiece remains unchanged, it is convenient to adjust the drilling position; there is no need to remove the workpiece or move the workpiece, and the position of the workpiece does not change, so the position of the processing hole is easy to determine.

[0023] By setting up the hole processing adjustment component, the position of the drill shaft can be easily adjusted, and after the position is adjusted, the drill shaft can still rotate in the positioning frame; by setting up the limit groove and the limit strip, the overall connection of the hole processing component is facilitated, and the guide sleeve can rotate synchronously with the guide rod; by setting up the first cross connecting axis, the second cross connecting axis, etc., the overall rotation of the hole processing component is facilitated.

[0024] By arranging two right-angle adjustment grooves on the square frame along its diagonal lines, the adjustment frame can move along the right-angle lines of the adjustment grooves, so that the movement range of the drill shaft is larger. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a side view of the overall structure of a machine tool for deep hole processing;

[0027] Figure 2 This is an axonometric view of a lifting box of a deep hole processing machine tool;

[0028] Figure 3 It is a bottom view of a square frame and an adjustment frame of a machine tool for deep hole processing;

[0029] Figure 4 This is an axonometric view of the internal structure of a square frame of a machine tool for deep hole processing;

[0030] Figure 5 This is a disassembled diagram of a hole processing adjustment component of a deep hole processing machine tool;

[0031] Figure 6 for Figure 5 Schematic diagram of adjustment method 1;

[0032] Figure 7 for Figure 5 Schematic diagram of adjustment method 2;

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Processing table; 11. Vertical plate; 12. Slideway; 13. Slide rail; 14. Top plate; 15. Telescopic cylinder; 2. Lifting box; 20. Driving motor; 21. Driving wheel; 22. Driven wheel; 23. Driven column; 24. First U-shaped sleeve A; 25. First cross connecting shaft; 26. First U-shaped sleeve B; 27. Guide rod; 28. Limiting strip; 29. ​​Bearing; 30. Limiting groove; 31. Guide sleeve; 32. Second U-shaped sleeve A; 33. Second cross connecting shaft; 34. Second U-shaped sleeve B; 35. Drilling shaft; 36. Positioning frame; 37. Adjusting frame; 4. Square frame; 40. Sliding hole; 41. Adjusting groove; 42. Adjusting hole; 43. Stud; 44. Nut; 5. Clamping assembly. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example 1

[0040] like Figure 1-7 As shown, the utility model provides a deep hole processing machine tool, comprising a processing table 1, on which a vertical plate 11 is fixedly mounted, wherein a lifting box 2 for adjusting the position of a tool is provided on the vertical plate 11 and is slidably connected, and a clamping assembly 5 for clamping a workpiece is fixedly mounted on the processing table 1;

[0041] The lifting box 2 is a hollow structure with an opening at the bottom wall. A driving wheel 21 is rotatably connected to the inner top wall of the lifting box 2. Two driven wheels 22 are meshingly connected to the driving wheel 21. A driven column 23 is fixedly installed in the middle of each driven wheel 22.

[0042] A square frame 4 is fixedly mounted on the bottom wall of the lifting box 2. Two right-angle adjustment slots 41 are respectively opened on the square frame 4 along its diagonal lines. Two adjustment frames 37 are slidably connected to the bottom wall of the square frame 4 through the adjustment slots 41. A positioning frame 36 is fixedly connected to one end of the adjustment frame 37 close to the middle of the lifting box 2.

[0043] The positioning frame 36 is a hollow cylindrical structure. The drill shaft 35 is rotatably connected inside the positioning frame 36 . A hole processing adjustment component is provided between the drill shaft 35 and the corresponding driven column 23 .

[0044] Optionally, in the above technical solution, a plurality of penetrating adjustment holes 42 are equidistantly provided on the adjustment frame 37, and the distance between two adjacent adjustment holes 42 is the same as the distance between two adjustment slots 41;

[0045] The adjusting groove 41 and the corresponding adjusting hole 42 are both plugged with a stud 43 , and the top wall of the square frame 4 and the bottom wall of the adjusting frame 37 are both butted with nuts 44 threadedly connected to the stud 43 .

[0046] Optionally, in the above technical solution, a driving motor 20 is fixedly installed on the top wall of the lifting box 2, the output shaft of the driving motor 20 passes through the lifting box 2 and is fixedly connected to the middle of the driving wheel 21, and the top of the driven column 23 is rotatably connected to the inner top wall of the lifting box 2.

[0047] Optionally, in the above technical solution, the hole processing adjustment assembly includes a first U-shaped sleeve A24 fixedly mounted on the bottom end of the driven column 23 and opening downward, the two ends of the first cross connecting shaft 25 are rotatably connected in the first U-shaped sleeve A24, the other two ends of the first cross connecting shaft 25 are rotatably connected in a first U-shaped sleeve B26 opening upward, and a guide rod 27 is fixedly mounted on the bottom end of the first U-shaped sleeve B26.

[0048] Optionally, in the above technical solution, a guide sleeve 31 is sleeved on the guide rod 27, and a second U-shaped sleeve A32 with an opening downward is fixedly installed on the bottom end of the guide sleeve 31, and two ends of a second cross connecting shaft 33 are rotatably connected in the second U-shaped sleeve A32, and the other two ends of the second cross connecting shaft 33 are rotatably connected in a second U-shaped sleeve B34 with an opening upward, and a drill shaft 35 is fixedly installed on the bottom end of the second U-shaped sleeve B34.

[0049] Optionally, in the above technical solution, a plurality of limit strips 28 are fixedly installed circumferentially equidistantly on the outer wall of the guide rod 27, a plurality of limit grooves 30 are opened circumferentially equidistantly on the inner wall of the guide sleeve 31, and the limit strips 28 are slidably connected in the corresponding limit grooves 30.

[0050] Optionally, in the above technical solution, two slideways 12 are fixedly installed on the vertical plate 11 , and two slide rails 13 are fixedly installed on the rear wall of the lifting box 2 , and the slide rails 13 are slidably connected to the slideways 12 .

[0051] Optionally, in the above technical solution, a top plate 14 is fixedly installed on the top of the vertical plate 11, and a fixed end of a telescopic cylinder 15 is fixedly installed on the top plate 14. The movable end of the telescopic cylinder 15 extends downward and the end is fixedly installed on the lifting box 2.

[0052] Among them, a bearing groove is opened on the inner top wall of the lifting box 2, the circumferential surface in the bearing groove is fixedly connected to the outer circumferential surface of the bearing 29, and the inner circumferential surface of the bearing 29 is fixedly connected to the driven column 23, so that the driven column 23 is rotatably connected in the lifting box 2.

[0053] Wherein, no matter where the adjusting frame 37 moves on the square frame 4 , a part of the guide rod 27 is always located in the guide sleeve 31 .

[0054] The stud 43 and the adjusting groove 41 are interference-fitted, so that the stud 43 cannot slide along the adjusting groove 41 , thereby preventing the position of the adjusting frame 37 from being offset.

[0055] The width of the nut 44 is greater than the width of the adjustment slot 41 and the adjustment hole 42 , and installing the nut 44 facilitates the square frame 4 to fit the adjustment frame 37 .

[0056] A sliding hole 40 is provided at a right angle to the adjustment slot 41 to distinguish the adjustment slots 41 on both sides of the diagonal line, that is, the adjustment frame 37 can slide along the sliding hole 40 to the other side of the adjustment slot 41 .

[0057] The length and width of the square frame 4 are greater than the maximum length and width of the workpiece, and the length of the adjustment frame 37 is slightly greater than half the length of the square frame 4, so that the movement range of the drill shaft 35 can correspond to any hole position of the workpiece.

[0058] Working principle:

[0059] When in use, the drill is mounted on the drill shaft 35, the workpiece to be drilled is clamped on the clamping assembly 5, the position of the drill shaft 35 is adjusted according to the position of the hole to be drilled, the nut 44 is loosened and the stud 43 is removed, so that the distance between the tool on the adjustment frame 37 and the center of the workpiece changes;

[0060] Adjustment method 1 (such as Figure 6 ): Replace the adjustment hole 42 corresponding to the adjustment slot 41, pull the adjustment frame 37 outward or inward with the driving wheel 21 as the center, and pull it to a suitable position so that the new adjustment hole 42 corresponds to the adjustment slot 41. At this time, pass the stud 43 through the adjustment slot 41 and the adjustment hole 42, and screw on the nut 44 to fix the position of the drill shaft 35 on the adjustment frame 37;

[0061] Adjustment method 2 (such as Figure 7 ): When the adjustment hole 42 corresponding to the adjustment slot 41 remains unchanged, pull the adjustment frame 37 to make the adjustment frame 37 slide linearly along the adjustment slot 41, and after pulling it to a suitable position, make the original adjustment hole 42 correspond to the new position of the adjustment slot 41, then pass the stud 43 through the adjustment slot 41 and the adjustment hole 42, and screw on the nut 44 to fix the position of the drill shaft 35 on the adjustment frame 37;

[0062] Adjustment method 1 and adjustment method 2 can be used at the same time, that is, the adjustment frame 37 is pulled outward or inward with the driving wheel 21 as the center, and the adjustment frame 37 is pulled to make the adjustment frame 37 slide linearly along the adjustment groove 41; the above adjustment method allows the drill to be pulled to any position corresponding to the workpiece.

[0063] After the adjustment is completed, the drive motor 20 is started to drive the active wheel 21 to rotate, and the active wheel 21 drives the driven column 23 on the driven wheel 22 meshing therewith to rotate. The driven column 23 is restricted by the bearing 29 to rotate in situ, and drives the first U-shaped sleeve A24 to rotate. The first U-shaped sleeve A24 drives the guide rod 27 on the first U-shaped sleeve B26 to rotate through the first cross connecting shaft 25, and the guide rod 27 drives the guide sleeve 31 to rotate synchronously, so that the second U-shaped sleeve A32 drives the drill shaft 35 on the second U-shaped sleeve B34 to rotate synchronously through the second cross connecting shaft 33, so that the tool rotates along the central axis of the positioning frame 36; and the telescopic cylinder 15 is started to drive the lifting box 2 to move down along the slide 12 to perform drilling processing on the workpiece.

[0064] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A deep hole machining machine tool, comprising a machining table (1), on which a vertical plate (11) is fixedly mounted, characterized in that: The vertical plate (11) is provided with a slidably connected lifting box (2) for adjusting the position of a tool, and the processing table (1) is provided with a fixedly installed clamping assembly (5) for clamping a workpiece; The lifting box (2) is a hollow structure with an open bottom wall. A driving wheel (21) is rotatably connected to the inner top wall of the lifting box (2). Two driven wheels (22) are meshingly connected to the driving wheel (21). A driven column (23) is fixedly installed in the middle of each driven wheel (22). A square frame (4) is fixedly mounted on the bottom wall of the lifting box (2), and two right-angle adjustment slots (41) are respectively provided on the square frame (4) along its diagonal lines. Two adjustment frames (37) are slidably connected to the bottom wall of the square frame (4) through the adjustment slots (41), and a positioning frame (36) is fixedly connected to one end of the adjustment frame (37) close to the middle of the lifting box (2); The positioning frame (36) is a hollow cylindrical structure. A drill shaft (35) is rotatably connected inside the positioning frame (36). A hole processing adjustment component is provided between the drill shaft (35) and the corresponding driven column (23).

2. A deep hole machining machine tool according to claim 1, characterized in that: The adjustment frame (37) is provided with a plurality of adjustment holes (42) which are arranged at equal intervals through the adjustment frame, and the distance between two adjacent adjustment holes (42) is the same as the distance between two adjustment slots (41); The adjusting groove (41) and the corresponding adjusting hole (42) are both plugged with a stud (43), and a nut (44) threadedly connected to the stud (43) is abutted on the top wall of the square frame (4) and the bottom wall of the adjusting frame (37).

3. A deep hole machining machine tool according to claim 1, characterized in that: A driving motor (20) is fixedly mounted on the top wall of the lifting box (2); an output shaft of the driving motor (20) passes through the lifting box (2) and is fixedly connected to the middle of the driving wheel (21); and the top of the driven column (23) is rotatably connected to the inner top wall of the lifting box (2).

4. A deep hole machining machine tool according to claim 1, characterized in that: The hole processing adjustment assembly comprises a first U-shaped sleeve A (24) fixedly mounted at the bottom end of the driven column (23) and opening downward, wherein two ends of a first cross connecting shaft (25) are rotatably connected in the first U-shaped sleeve A (24), and the other two ends of the first cross connecting shaft (25) are rotatably connected in a first U-shaped sleeve B (26) opening upward, and a guide rod (27) is fixedly mounted at the bottom end of the first U-shaped sleeve B (26).

5. A deep hole machining machine tool according to claim 4, characterized in that: The guide rod (27) is sleeved with a guide sleeve (31), a second U-shaped sleeve A (32) with an opening facing downward is fixedly mounted on the bottom end of the guide sleeve (31), two ends of a second cross connecting shaft (33) are rotatably connected in the second U-shaped sleeve A (32), the other two ends of the second cross connecting shaft (33) are rotatably connected in a second U-shaped sleeve B (34) with an opening facing upward, and a drill shaft (35) is fixedly mounted on the bottom end of the second U-shaped sleeve B (34).

6. A deep hole machining machine tool according to claim 5, characterized in that: A plurality of limit strips (28) are fixedly mounted equidistantly on the outer wall of the guide rod (27), a plurality of limit grooves (30) are equidistantly formed on the inner wall of the guide sleeve (31), and the limit strips (28) are slidably connected in corresponding limit grooves (30).

7. A deep hole machining machine tool according to claim 1, characterized in that: Two slideways (12) are fixedly mounted on the vertical plate (11), and two slide rails (13) are fixedly mounted on the rear wall of the lifting box (2), wherein the slide rails (13) are slidably connected to the slideways (12).

8. A deep hole machining machine tool according to claim 7, characterized in that: A top plate (14) is fixedly mounted on the top of the vertical plate (11), a fixed end of a telescopic cylinder (15) is fixedly mounted on the top plate (14), and a movable end of the telescopic cylinder (15) extends downward and an end portion is fixedly mounted on the lifting box (2).

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