Multi-station numerical control double-sided boring combined machine tool

Abstract

The invention belongs to the technical field of boring machine tools, and discloses a multi-station numerical control double-face boring combined machine tool which comprises a base and a boring cutter located above the base, and an adjusting mechanism used for adjusting the rotating radius of the boring cutter is arranged above the base. A first driving mechanism used for driving the boring cutter to rotate to bore a workpiece and a second driving mechanism used for driving the external workpiece to rotate to bore the workpiece through the boring cutter are arranged above the base, the arc-shaped rack and the arc-shaped clamping plate can rotate at different positions, and therefore different working modes of the machine tool are completed; when the arc-shaped rack is meshed with the first gear, the boring cutter can be driven to rotate through rotation of the arc-shaped rack, and a workpiece fixed to a machine tool is bored. And when the arc-shaped rack and the arc-shaped clamping plate are far away from the first gear, the arc-shaped clamping plate can be driven by the electric telescopic rod to clamp the workpiece to drive the workpiece to rotate, and a boring cutter is used for boring.

Description

Technical Field

[0001] The invention belongs to the technical field of boring machine tools, in particular to a multi-station CNC double-sided boring combined machine tool. Background Art

[0002] Boring refers to the further processing of forged, cast or drilled holes. Boring can enlarge the hole diameter, improve accuracy, reduce surface roughness, and better correct the deviation of the original hole axis.

[0003] There are two working modes of boring processing. The first is that the boring tool is fixed on the lathe and the processing is achieved by the rotation of the workpiece itself; the second is that the workpiece is fixed on the lathe and the boring tool performs rotary cutting.

[0004] For example, a lathe equipped with a boring device disclosed in the invention with the authorization publication number CN118046222A can not only complete conventional boring during the boring operation, but also polish and flatten the hole wall through the polishing roller arranged on the outer side of the tool rod. At the same time, when the tool is retracted, the boring tool can be automatically retracted, which can effectively prevent the boring tool from contacting the hole wall of the workpiece during the retraction process, thereby avoiding damage to the hole wall of the workpiece or damage to the boring tool edge.

[0005] However, this application only has the method of driving the boring cutter to rotate and process the workpiece, but cannot drive the workpiece itself to rotate and be processed by the boring cutter, which greatly reduces the adaptability of the machine tool. Summary of the invention

[0006] In order to solve the problem of low adaptability of machine tools mentioned in the above background technology, the present invention provides a multi-station CNC double-sided boring combination machine tool.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-station CNC double-sided boring combination machine tool, comprising a base and a boring cutter located above the base, an adjustment mechanism for adjusting the rotation radius of the boring cutter is arranged above the base, a driving mechanism 1 for driving the boring cutter to rotate and bore the workpiece is arranged above the base, and a driving mechanism 2 for driving an external workpiece to rotate and use the boring cutter to bore the workpiece.

[0008] Preferably, the adjustment mechanism includes two L-shaped support plates which are vertically fixed on the upper surface of the base and symmetrically distributed, and the two L-shaped support plates are rotatably connected to gear one, and the two gears one are fixedly connected to a rectangular frame on one side away from each other, and an internal threaded sleeve is slidably connected in the rectangular frame, and a connecting rod is fixedly connected between the internal threaded sleeve and the boring tool, and the connecting rod passes through gear one, and a rectangular groove for the connecting rod to slide is opened on the surface of gear one.

[0009] Preferably, the adjustment mechanism also includes a rotating shaft that passes through the rectangular frame and is rotatably connected to the rectangular frame, a rectangular plate is integrally fixed to one end of the rotating shaft, a motor is fixedly installed on the L-shaped support plate, a circular shaft rotatably connected to the L-shaped support plate is installed at the output end of the motor, and a slot that matches the rectangular plate is opened at one end of the circular shaft.

[0010] Preferably, a threaded rod sleeved on the rotating shaft is arranged in the rectangular frame, and the threaded rod passes through the internal threaded sleeve and is threadedly connected with the internal threaded sleeve.

[0011] Preferably, the driving mechanism 1 includes two vertical plates slidably connected to the upper surface of the base and symmetrically distributed, and a gear 2 rotatably connected between the two L-shaped support plates, and both of the vertical plates are provided with movable holes for the gear 2 to pass through.

[0012] Preferably, both of the vertical plates are rotatably connected to a first annular shaft, a gear three is sleeved on the first annular shaft and meshes with gear two, a plurality of equally spaced electric telescopic rods are inserted into the first annular shaft, and one end of the electric telescopic rod located in the first annular shaft is fixedly connected to an arc-shaped rack.

[0013] Preferably, the driving mechanism 2 includes a second annular shaft rotatably connected to one of the L-shaped support plates, a gear 4 is sleeved on the second annular shaft and meshes with the gear 2, a ratchet located in the second annular shaft is rotatably connected to the L-shaped support plate, and the center of the ratchet and the center of the second annular shaft are located on the same horizontal line.

[0014] Preferably, a strip rod is fixedly connected to the inner wall of the second annular shaft, and a clamping plate is rotatably connected to the strip rod, the number of the clamping plates is at least two, the side of the clamping plate away from the strip rod is adapted to the tooth groove of the ratchet, and a spring is fixedly connected to the clamping plate, and the other end of the spring is fixed to the inner wall of the second annular shaft.

[0015] Preferably, two screw rods are rotatably connected between the two L-shaped support plates, the two screw rods are coaxially fixed with the ratchet, and the thread directions of the two screw rod surfaces are opposite, the two vertical plates are plugged with movable sleeves, the two movable sleeves are respectively sleeved on the two screw rods, and the upper surface of the base is provided with a limiting groove for the vertical plate to slide, and an arc-shaped clamping plate is integrally fixed on each of the arc-shaped racks.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up an adjustment mechanism, the boring tool can be driven to move to a preset position in the vertical direction when the boring tool stops rotating, thereby changing the subsequent rotation radius of the boring tool, allowing the machine tool to adapt to workpieces with different hole diameters, effectively improving the adaptability of the machine tool.

[0018] By setting up a driving mechanism 1, the arc-shaped rack can drive the gear 1 to select when it is meshed with the gear 1, and the gear 1 drives the boring tool to rotate accordingly, so that the boring tool completes the boring work of the workpiece.

[0019] By setting up driving mechanism 2, the arc-shaped rack and the arc-shaped clamping plate can be driven to move in the horizontal direction, so that the arc-shaped rack is disengaged from gear 1, resulting in the arc-shaped rack being unable to drive gear 1 to rotate, and the boring tool will not rotate either. The workpiece to be processed is then clamped between multiple arc-shaped clamping plates, the workpiece is driven to rotate, and the boring tool is used to complete the boring work.

[0020] Among them, the arc-shaped rack and the arc-shaped clamping plate can rotate at different positions, thereby completing different working modes of the machine tool;

[0021] When the arc-shaped rack meshes with gear one, the rotation of the arc-shaped rack can drive the boring cutter to rotate, boring the workpiece fixed on the machine tool;

[0022] When the arc-shaped rack and the arc-shaped clamping plate are away from gear one, the arc-shaped clamping plate can be driven by the electric telescopic rod to clamp the workpiece and drive the workpiece to rotate, and the boring tool can be used to bore the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the position of the gear 1 in the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 5 It is a structural schematic diagram of the location of the connecting rod in the present invention;

[0028] Figure 6 It is a structural schematic diagram of the location of the rectangular groove in the present invention;

[0029] Figure 7 It is a structural schematic diagram of the location of the gear four in the present invention;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at C in the middle;

[0031] Fig. 9It is a schematic diagram of the structure of the neutral plate after horizontal movement of the present invention;

[0032] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at E in the middle.

[0033] In the figure: 1, base; 2, boring tool; 31, L-shaped support plate; 32, gear one; 33, rectangular frame; 34, internal threaded sleeve; 35, connecting rod; 36, rectangular groove; 37, rotating shaft; 38, rectangular plate; 39, motor; 310, round shaft; 311, clamping groove; 312, threaded rod; 41, vertical plate; 42, gear two; 43, movable hole; 44, first annular shaft; 45, gear three; 46, electric telescopic rod; 47, arc-shaped rack; 51, second annular shaft; 52, gear four; 53, ratchet; 54, strip rod; 55, clamping plate; 56, spring; 57, screw rod; 58, movable sleeve; 59, limit slide groove; 510, arc-shaped clamping plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1 As shown, the present invention provides a multi-station CNC double-sided boring combination machine tool, including a base 1, and a boring tool 2 located above the base 1, an adjustment mechanism for adjusting the rotation radius of the boring tool 2 is arranged above the base 1, a driving mechanism 1 for driving the boring tool 2 to rotate to bore a workpiece is arranged above the base 1, and a driving mechanism 2 for driving an external workpiece to rotate and use the boring tool 2 to bore a hole.

[0036] like Figures 2 to 5 As shown, the adjustment mechanism includes two L-shaped support plates 31 vertically fixed on the upper surface of the base 1 and symmetrically distributed, and the two L-shaped support plates 31 are rotatably connected to a gear 1 32, and the two gears 1 32 are fixedly connected to a rectangular frame 33 on the side away from each other, and an internal thread sleeve 34 is slidably connected in the rectangular frame 33. A connecting rod 35 is fixedly connected between the internal thread sleeve 34 and the boring tool 2, and the connecting rod 35 passes through the gear 1 32, and a rectangular groove 36 (such as Figure 6 shown).

[0037] The boring tool 2 and the connecting rod 35 can slide along the rectangular groove 36, and when the boring tool 2 is at different positions and rotates with the gear 1 32, its rotation radius is also different.

[0038] like Figures 2 to 5 As shown, the adjustment mechanism also includes a rotating shaft 37 that passes through the rectangular frame 33 and is rotatably connected to the rectangular frame 33. A rectangular plate 38 is integrally fixed to one end of the rotating shaft 37. A motor 39 is fixedly installed on the L-shaped support plate 31. A circular shaft 310 rotatably connected to the L-shaped support plate 31 is installed at the output end of the motor 39. A slot 311 that is compatible with the rectangular plate 38 is opened at one end of the circular shaft 310.

[0039] By adopting the above scheme, the rotating shaft 37 and the rectangular plate 38 can rotate along with the gear 1 32, and the rectangular plate 38 can rotate into the slot 311. When the rectangular plate 38 stops in the slot 311, the circular shaft 310 can drive the rotating shaft 37 to rotate through the rectangular plate 38.

[0040] like Figures 3 to 5 As shown, a threaded rod 312 sleeved on the rotating shaft 37 is arranged in the rectangular frame 33 , and the threaded rod 312 passes through the internal threaded sleeve 34 and is threadedly connected with the internal threaded sleeve 34 .

[0041] When the rotating shaft 37 drives the threaded rod 312 to rotate, the rotating shaft 37 can drive the internal threaded sleeve 34 to move along the rectangular groove 36, so that the internal threaded sleeve 34 can drive the boring tool 2 to move along the rectangular groove 36 through the connecting rod 35, so that the rotation radius of the boring tool 2 can adapt to different accessories.

[0042] like Figure 6 and Figure 1 As shown, the driving mechanism 1 includes two vertical plates 41 slidably connected to the upper surface of the base 1 and symmetrically distributed, and a gear 2 42 rotatably connected between the two L-shaped support plates 31, and both vertical plates 41 are provided with movable holes 43 for the gear 2 42 to pass through.

[0043] Gear 2 42 is driven by an external motor.

[0044] By adopting the above solution, the vertical plate 41 can move in the horizontal direction without affecting the rotation of the second gear 42 .

[0045] like Figure 6 As shown, the two vertical plates 41 are rotatably connected to a first annular shaft 44, a gear three 45 meshing with the gear two 42 is sleeved on the first annular shaft 44, a plurality of equally spaced electric telescopic rods 46 are inserted into the first annular shaft 44, and one end of the electric telescopic rod 46 located inside the first annular shaft 44 is fixedly connected to an arc-shaped rack 47.

[0046] Among them, the electric telescopic rod 46 can drive the arc-shaped rack 47 to move toward the side close to the gear 1 32, or move away from the side of the gear 1 32, so that the arc-shaped rack 47 can mesh with the gear 1 32.

[0047] Among them, the upper end of the vertical plate 41 is circular and has a circular hole, and the first annular shaft 44 is rotatably connected to the inner wall of the circular hole. This solution is adopted to allow the vertical plate 41 to move horizontally without being blocked by the gear 1 32.

[0048] like Figures 7 and 8 As shown, the driving mechanism 2 includes a second annular shaft 51 rotatably connected to one of the L-shaped support plates 31, a gear 4 52 meshing with the gear 2 42 is sleeved on the second annular shaft 51, a ratchet 53 located inside the second annular shaft 51 is rotatably connected to the L-shaped support plate 31, and the center of the ratchet 53 and the center of the second annular shaft 51 are located on the same horizontal line.

[0049] like Figure 8 As shown, a strip rod 54 is fixedly connected to the inner wall of the second annular shaft 51, and a clamping plate 55 is rotatably connected to the strip rod 54. The number of the clamping plates 55 is at least two, and the side of the clamping plate 55 away from the strip rod 54 is adapted to the tooth groove of the ratchet 53. A spring 56 is fixedly connected to the clamping plate 55, and the other end of the spring 56 is fixed to the inner wall of the second annular shaft 51.

[0050] With the above solution, whether the gear 2 42 rotates clockwise or counterclockwise, it will drive the gear 4 52 and the second annular shaft 51 and the clamping plate 55 located on the inner wall of the second annular shaft 51 to rotate accordingly. However, the gear 2 42 can only drive the ratchet 53 to rotate through the clamping plate 55 when it rotates counterclockwise.

[0051] like Figure 8 , Figure 6 , Fig. 9 and Fig.10 As shown, two screw rods 57 are rotatably connected between the two L-shaped support plates 31, and the two screw rods 57 are coaxially fixed with the ratchet 53, and the thread directions on the surfaces of the two screw rods 57 are opposite, and movable sleeves 58 are inserted on the two vertical plates 41, and the two movable sleeves 58 are respectively sleeved on the two screw rods 57, and a limiting groove 59 for the vertical plate 41 to slide is provided on the upper surface of the base 1, and an arc-shaped clamping plate 510 is integrally fixed on each arc-shaped rack 47.

[0052] When the gear 2 42 rotates counterclockwise, it can drive the ratchet 53 to rotate, and the ratchet 53 can drive two screw rods 57 coaxially fixed thereto to rotate accordingly, and the screw rods 57 can drive the vertical plate 41 to move in the horizontal direction through the movable sleeve 58, so that the two vertical plates 41 move in opposite directions, so that the arc-shaped rack 47 and the arc-shaped clamping plate 510 will also move accordingly, so that the arc-shaped rack 47 is separated from the gear 1 32 and cannot drive the gear 1 32 and the boring tool 2 to rotate;

[0053] At this time, the workpiece can be clamped between the multiple arc-shaped clamping plates 510, and then the workpiece can be rotated by the clockwise rotation of the gear 2 42 to complete the boring work using the boring tool 2.

[0054] In use, whether the gear 2 42 rotates clockwise or counterclockwise, it can drive the gear 3 45 and the first annular shaft 44 to rotate accordingly, and the arc-shaped rack 47 and the arc-shaped clamping plate 510 in the first annular shaft 44 will also rotate accordingly, so the arc-shaped rack 47 and the arc-shaped clamping plate 510 also rotate at the same time in the horizontal movement state, and will not affect the arc-shaped rack 47 from disengaging from the gear 1 32;

[0055] The electric telescopic rod 46 can not only drive the arc rack 47 to move closer to the gear 1 32, so that the arc rack 47 and the gear 1 32 are in a meshing state, but also the arc rack 47 can drive the arc clamping plate 510 to move away from the first annular shaft 44, so that multiple arc clamping plates 510 can clamp and fix the workpiece to be processed, so as to facilitate the subsequent driving of the workpiece to rotate.

[0056] Among them, a plurality of boring stations are arranged on the base 1, which can perform boring work on a plurality of workpieces at the same time.

[0057] By setting up an adjustment mechanism, the boring tool 2 can be driven to move to a preset position in the vertical direction when the boring tool 2 stops rotating, thereby changing the subsequent rotation radius of the boring tool 2, allowing the machine tool to adapt to workpieces with different apertures, effectively improving the adaptability of the machine tool.

[0058] By setting up the driving mechanism 1, the arc-shaped rack 47 can drive the gear 1 32 to select when it is meshed with the gear 1 32, and the gear 1 32 drives the boring tool 2 to rotate accordingly, so that the boring tool 2 completes the boring work of the workpiece.

[0059] By setting up driving mechanism 2, the arc-shaped rack 47 and the arc-shaped clamping plate 510 can be driven to move in the horizontal direction, so that the arc-shaped rack 47 disengages from gear 1 32, resulting in the arc-shaped rack 47 being unable to drive gear 1 32 to rotate, and the boring tool 2 will not rotate either. Then the workpiece to be processed is clamped between multiple arc-shaped clamping plates 510, and the workpiece is driven to rotate, and the boring tool 2 is used to complete the boring work.

[0060] The arc-shaped rack 47 and the arc-shaped clamping plate 510 can rotate at different positions, thereby completing different working modes of the machine tool;

[0061] When the arc-shaped rack 47 is meshed with the gear 1 32, the rotation of the arc-shaped rack 47 can drive the boring tool 2 to rotate, and bore the workpiece fixed on the machine tool;

[0062] When the arc-shaped rack 47 and the arc-shaped clamping plate 510 are away from the gear 1 32, the arc-shaped clamping plate 510 can be driven by the electric telescopic rod 46 to clamp the workpiece and drive the workpiece to rotate, and the boring tool 2 can be used to bore the hole.

[0063] The working principle and use process of the present invention:

[0064] In the initial state, the arc-shaped rack 47 and the gear 1 32 are meshed with each other, and the workpiece to be processed is fixed between the two boring cutters 2 by an external clamping device;

[0065] The external motor drives the gear 2 42 to rotate clockwise, and the gear 2 42 can drive the two gears 3 45 meshing with each other to rotate accordingly, and the gear 3 45 can drive the first annular shaft 44 to rotate accordingly, and the first annular shaft 44 can drive the electric telescopic rod 46 plugged on its surface to rotate accordingly, and the electric telescopic rod 46 can drive the gear 1 32 to rotate accordingly through the arc-shaped rack 47, and the gear 1 32 can drive the rectangular frame 33 fixed on its surface to rotate accordingly, and the rectangular frame 33 can drive the internal thread sleeve 34 to rotate accordingly, and the internal thread sleeve 34 can drive the boring tool 2 to rotate accordingly through the connecting rod 35, so that the boring tool 2 completes the boring work of the workpiece;

[0066] When the rectangular frame 33 rotates along with the gear 1 32, the rotating shaft 37, the rectangular plate 38 and the threaded rod 312 also rotate accordingly, so that the rectangular plate 38 passes through the slot 311 during the rotation;

[0067] If the rotation radius of the boring tool 2 is to be adjusted so that the rectangular plate 38 stays in the slot 311, the rotating shaft 37 and the threaded rod 312 are in a vertical state, and the motor 39 drives the round shaft 310 to rotate, and the round shaft 310 can drive the rectangular plate 38 in the slot 311 to rotate accordingly, and the rectangular plate 38 can drive the rotating shaft 37 to rotate accordingly, and the rotating shaft 37 can drive the threaded rod 312 sleeved on its surface to rotate accordingly, and the threaded rod 312 can drive the internal thread sleeve 34 threadedly connected thereto to slide along the rectangular frame 33, and the internal thread sleeve 34 can drive the boring tool 2 to move accordingly through the connecting rod 35, so as to change the subsequent rotation radius of the boring tool 2;

[0068] Among them, driving the workpiece to be processed to rotate is used to process a smaller workpiece, while driving the boring tool 2 to rotate is used to process a larger workpiece.

[0069] If it is necessary to keep the boring tool 2 in a stationary state and drive the workpiece to be processed to rotate while boring the hole by the boring tool 2, the external motor drives the gear 2 42 to rotate counterclockwise, and the gear 2 42 can drive the gear 4 52 meshing with it to rotate accordingly, and the gear 4 52 can drive the second annular shaft 51 to rotate accordingly, and the second annular shaft 51 can drive the clamping plate 55 to rotate accordingly through the strip rod 54, so that the clamping plate 55 is adapted to the tooth groove of the ratchet 53, and the clamping plate 55 can drive the ratchet 53 to rotate accordingly, and the ratchet 53 can drive the two screw rods 57 coaxially fixed thereto to rotate accordingly, and the screw rod 57 can drive the vertical plate 41 to move in the horizontal direction through the movable sleeve 58, so that the two vertical plates 41 move in relative directions;

[0070] The vertical plate 41 can drive the first annular shaft 44 and the gear three 45 to move in the horizontal direction, and the gear three 45 is also driven to rotate by the gear two 42 while moving in the horizontal direction. The first annular shaft 44 can drive the arc-shaped rack 47 and the arc-shaped clamping plate 510 to move in the horizontal direction through the electric telescopic rod 46, so that the arc-shaped rack 47 is separated from the gear one 32.

[0071] Then, the workpiece to be processed can be placed between the multiple arc-shaped clamping plates 510, and the arc-shaped rack 47 and the arc-shaped clamping plates 510 can be driven by the electric telescopic rod 46 to move away from the first annular shaft 44, so that the workpiece is clamped by the arc-shaped clamping plates 510. Before clamping the workpiece, the arc-shaped clamping plates 510 are in a stationary state, neither rotating nor moving horizontally;

[0072] After the workpiece is clamped by the arc-shaped clamping plate 510, the gear 2 42 can be driven by an external motor to rotate clockwise, driving the arc-shaped rack 47 and the arc-shaped clamping plate 510 to rotate accordingly, so that the workpiece clamped between the arc-shaped clamping plates 510 also rotates accordingly and is bored by the boring tool 2;

[0073] When the machine tool is in a working mode of driving the workpiece to rotate, the position of the boring tool 2 can also be adjusted through the adjustment mechanism to allow the boring tool 2 to adapt to holes on different workpieces.

[0074] Since the workpiece itself is rotated in a manner to process a small workpiece, it can be placed between a plurality of arc-shaped clamping plates 510, and it is not necessary to process both ends simultaneously.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station CNC double-sided boring machine tool, comprising a base (1) and a boring tool (2) located above the base (1), characterized in that: An adjustment mechanism for adjusting the rotation radius of the boring tool (2) is arranged above the base (1); a driving mechanism 1 for driving the boring tool (2) to rotate to bore a workpiece, and a driving mechanism 2 for driving an external workpiece to rotate to bore a workpiece using the boring tool (2) are arranged above the base (1).

2. The multi-station CNC double-sided boring machine tool according to claim 1 is characterized in that: The adjustment mechanism comprises two L-shaped support plates (31) vertically fixed on the upper surface of the base (1) and symmetrically distributed, the two L-shaped support plates (31) are rotatably connected to a gear one (32), the two gears one (32) are fixedly connected to a rectangular frame (33) on the side away from each other, an internal thread sleeve (34) is slidably connected inside the rectangular frame (33), a connecting rod (35) is fixedly connected between the internal thread sleeve (34) and the boring tool (2), the connecting rod (35) passes through the gear one (32), and a rectangular groove (36) for the connecting rod (35) to slide is opened on the surface of the gear one (32).

3. The multi-station CNC double-sided boring machine tool according to claim 2 is characterized in that: The adjustment mechanism further comprises a rotating shaft (37) penetrating the rectangular frame (33) and rotatably connected to the rectangular frame (33); a rectangular plate (38) is integrally fixed to one end of the rotating shaft (37); a motor (39) is fixedly mounted on the L-shaped support plate (31); a circular shaft (310) rotatably connected to the L-shaped support plate (31) is mounted on the output end of the motor (39); a slot (311) adapted to fit the rectangular plate (38) is provided at one end of the circular shaft (310).

4. The multi-station CNC double-sided boring machine tool according to claim 3 is characterized in that: A threaded rod (312) sleeved on a rotating shaft (37) is arranged in the rectangular frame (33); the threaded rod (312) passes through an internal threaded sleeve (34) and is threadedly connected to the internal threaded sleeve (34).

5. The multi-station CNC double-sided boring machine tool according to any one of claims 1 to 4, characterized in that: The driving mechanism 1 comprises two vertical plates (41) slidably connected to the upper surface of the base (1) and symmetrically distributed, and a second gear (42) rotatably connected between the two L-shaped support plates (31), and the two vertical plates (41) are both provided with movable holes (43) for the second gear (42) to pass through.

6. The multi-station CNC double-sided boring machine tool according to claim 5, characterized in that: The two vertical plates (41) are both rotatably connected to a first annular shaft (44); a gear three (45) meshing with a gear two (42) is sleeved on the first annular shaft (44); a plurality of equally spaced electric telescopic rods (46) are plugged into the first annular shaft (44); one end of the electric telescopic rod (46) located inside the first annular shaft (44) is fixedly connected to an arc-shaped rack (47).

7. The multi-station CNC double-sided boring machine tool according to claim 6, characterized in that: The second driving mechanism comprises a second annular shaft (51) rotatably connected to one of the L-shaped support plates (31); a fourth gear (52) meshing with the second gear (42) is sleeved on the second annular shaft (51); a ratchet (53) located inside the second annular shaft (51) is rotatably connected to the L-shaped support plate (31); and the center of the ratchet (53) and the center of the second annular shaft (51) are located on the same horizontal line.

8. The multi-station CNC double-sided boring machine tool according to claim 7, characterized in that: A strip rod (54) is fixedly connected to the inner wall of the second annular shaft (51), and a clamping plate (55) is rotatably connected to the strip rod (54). The number of the clamping plates (55) is at least two, and a side of the clamping plate (55) away from the strip rod (54) is adapted to the tooth groove of the ratchet (53). A spring (56) is fixedly connected to the clamping plate (55), and the other end of the spring (56) is fixed to the inner wall of the second annular shaft (51).

9. The multi-station CNC double-sided boring machine tool according to claim 8, characterized in that: Two screw rods (57) are rotatably connected between the two L-shaped support plates (31), and the two screw rods (57) are coaxially fixed with the ratchet (53), and the threads on the surfaces of the two screw rods (57) are in opposite directions. The two vertical plates (41) are plugged with movable sleeves (58), and the two movable sleeves (58) are respectively sleeved on the two screw rods (57). The upper surface of the base (1) is provided with a limiting sliding groove (59) for the vertical plate (41) to slide, and each of the arc-shaped racks (47) is integrally fixed with an arc-shaped clamping plate (510).

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