Small-diameter deep hole processing machine tool

Abstract

The utility model belongs to the technical field of hole processing machine tools, and particularly relates to a small-diameter deep hole processing machine tool which is characterized in that first side plates are symmetrically arranged on the two sides of a bottom plate, a support is arranged above the bottom plate between the two first side plates, two moving blocks are symmetrically arranged on the support in a sliding mode, and first supporting plates are arranged on the lower end faces of the moving blocks in a sliding mode; two first clamping plates are arranged on the first supporting plate in a sliding mode, a plurality of first grooves are formed in the opposite faces of the two first clamping plates, opening frames are arranged in the first grooves, rolling shafts are rotationally arranged in the opening frames, a moving plate is arranged between the two first side plates in a sliding mode, and cutter assemblies are symmetrically arranged on the two sides of the moving plate in a sliding mode. A second supporting plate is slidably arranged on the upper end face of the bottom plate. Through the arrangement of the moving block, the first clamping plate, the rolling shaft and the like, the first clamping plate tracks and clamps a workpiece, the clamping stability of the workpiece during hole machining is effectively improved, and the hole machining precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hole processing machine tools, in particular to a small-diameter deep hole processing machine tool. Background Art

[0002] The length-to-diameter ratio of small-diameter deep holes is greater than 5. For these deep holes, higher processing accuracy and surface quality requirements are usually required, so deep hole processing has received more and more attention. In the field of mechanical processing, horizontal lathes are usually used to turn deep holes in shafts, which can improve efficiency and solve some deep hole processing problems of shaft parts that cannot be completed by boring machines and drilling machines. However, the cantilever tool bar structure, which is the most commonly used for deep hole turning, is very prone to tool bar vibration when processing deep holes due to its long tool bar and poor rigidity, which affects the processing quality of the hole. Sometimes when the hole to be processed is too long, it may be necessary to turn the workpiece direction to process the holes at both ends.

[0003] For example, patent application number CN201320885297.5 discloses a small-diameter deep hole processing machine tool, including a suspended spindle, the spindle is connected to a tool bar, a bed track is arranged below the spindle, and a cooling water spray device arranged opposite to the tool bar is also installed on the bed track, the cooling water spray device includes a connecting seat installed on the bed track, a cooling pipe that can be extended into the processing part is installed on the connecting seat, and a workbench that can slide along the surface is also arranged on the bed track between the spindle and the cooling water spray device. Since the distance between the cooling water spray device and the tool bar remains unchanged, and the cooling pipe of the cooling water spray device can be extended into the processing hole, the tool and the processing position can be better cooled during the processing process. At the same time, the iron filings at the processing position can be completely discharged, thereby improving the processing accuracy of the hole, extending the service life of the tool, and eliminating the need to frequently replace the tool, thereby reducing production costs.

[0004] In the prior art, a cooling pipe is installed on the bed rail opposite to the tool rod. The cooling pipe can extend into the processing part to cool the tool and improve the processing accuracy. However, for processing of deep holes that are too long, it is necessary to flip the workpiece and process holes on both sides. This will cause the positions of the holes processed at both ends to be inaccurate, resulting in reduced processing accuracy of the overall hole. Moreover, when processing deep holes, since the tool is too long, if the clamping is not stable enough, it is easy to vibrate during processing, thereby affecting the accuracy of hole processing, and even causing the tool to break and be damaged. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a small-diameter deep hole processing machine tool. The utility model uses the settings of a moving block, a first clamping plate and a roller, so that the first clamping plate tracks and clamps the workpiece, effectively increasing the clamping stability during workpiece hole processing and improving the hole processing accuracy. Through the settings of the moving plate and the slider, the tool assembly can be synchronously moved horizontally, so that the positions of the two tool assemblies for workpiece hole processing are in a coaxial state, effectively ensuring the hole processing accuracy.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a small-diameter deep hole processing machine tool, comprising a base plate, first side plates are symmetrically arranged on both sides of the base plate, a bracket is arranged above the base plate between the two first side plates, two moving blocks are symmetrically and slidably arranged on the bracket, a first supporting plate is slidably arranged on the lower end surface of the moving block, two first clamping plates are slidably arranged on the first supporting plate, a plurality of first grooves are arranged on the opposite surfaces of the two first clamping plates, an opening frame is arranged inside the first groove, a roller is rotatably arranged inside the opening frame, a moving plate is slidably arranged between the two first side plates, tool assemblies are symmetrically and slidably arranged on both sides of the moving plate, a second supporting plate is slidably arranged on the upper end surface of the base plate, and two second clamping plates are slidably arranged on the second supporting plate.

[0007] Optionally, a buffer pad is provided between the first groove and the opening frame.

[0008] Optionally, a second side plate is arranged between the two first side plates on one side of the bottom plate, a second push cylinder is arranged on one side of the second side plate, and an output end of the second push cylinder is connected to one side of the movable plate.

[0009] Optionally, two first screw rods are symmetrically rotatably arranged on the bracket, and the first screw rods are rotatably connected to the moving block.

[0010] Optionally, a first push cylinder is provided on the lower end surface of the moving block, and an output end of the first push cylinder is connected to the upper end surface of the first support plate.

[0011] Optionally, a second screw rod is rotatably provided on the first support plate, and the second screw rod is rotatably connected to the first clamping plate.

[0012] Optionally, a third screw rod is rotatably provided on the second supporting plate, and the third screw rod is rotatably connected to the second clamping plate.

[0013] Optionally, a plurality of slide grooves are arranged on the opposite sides of the two first side plates, a plurality of sliders are slidably arranged on the slide grooves, and the sliders are fixedly connected to one side of the movable plate.

[0014] Optionally, a fourth push cylinder is provided on the lower end surface of the base plate, and an output end of the fourth push cylinder passes through the base plate and is fixedly connected to the lower end surface of the second support plate.

[0015] In summary, compared with the prior art, the beneficial effects of this solution are:

[0016] (1) The utility model arranges the moving block, the first clamping plate and the roller, so that the first clamping plate can track and clamp the workpiece according to the real-time position of the drill hole during hole processing, thereby effectively increasing the clamping stability of the workpiece during hole processing and improving the hole processing accuracy;

[0017] (2) The utility model can effectively absorb the vibration generated during the hole processing of the workpiece by setting the opening frame, thereby improving the stability of the hole processing;

[0018] (3) The utility model can make the tool assembly move horizontally synchronously by means of the movable plate and the slider, so that the positions of the two tool assemblies for processing the workpiece holes are in a coaxial state, so that the processed holes are coaxial, effectively ensuring the accuracy of hole processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is the front view of the utility model;

[0022] Figure 4 for Figure 2 The three-dimensional cross-section view at AA in the middle;

[0023] Figure 5 for Figure 3 A three-dimensional cross-section view at the middle BB;

[0024] Figure 6 for Figure 4 A partial enlarged view of the D position;

[0025] Figure 7 for Figure 5 A partial enlarged view of the E in the middle;

[0026] Figure 8 for Figure 1 A partial enlarged view of point C in the middle.

[0027] In the figure: a base plate 10, a first side plate 11, a bracket 12, a moving block 13, a first screw rod 14, a first push cylinder 15, a first support plate 16, a first clamping plate 17, a second screw rod 18, a first groove 19, a buffer pad 20, an opening frame 21, a roller 22, a first motor 23, a second side plate 24, a moving plate 25, a second push cylinder 26, a tool assembly 27, a third push cylinder 28, a slide groove 29, a slider 30, a second support plate 31, a second clamping plate 32, a third screw rod 33, a second motor 34, a fourth push cylinder 35, and a third motor 36. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention. Embodiment 1:

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a small-diameter deep hole processing machine tool comprises a base plate 10, first side plates 11 are symmetrically arranged on both sides of the base plate 10, a bracket 12 is arranged between the two first side plates 11 above the base plate 10, two moving blocks 13 are symmetrically slidably arranged on the bracket 12, a first supporting plate 16 is slidably arranged on the lower end surface of the moving block 13, two first clamping plates 17 are slidably arranged on the first supporting plate 16, a plurality of first grooves 19 are arranged on the opposite surfaces of the two first clamping plates 17, an opening frame 21 is arranged inside the first groove 19, a roller 22 is rotatably arranged inside the opening frame 21, a moving plate 25 is slidably arranged between the two first side plates 11, a tool assembly 27 is symmetrically slidably arranged on both sides of the moving plate 25, a second supporting plate 31 is slidably arranged on the upper end surface of the base plate 10, and two second clamping plates 32 are slidably arranged on the second supporting plate 31.

[0030] Specifically, the bracket 12 is an "H"-shaped frame, and the moving block 13 is symmetrically and slidably arranged on the bracket 12. The portion where the roller 22 contacts the clamped workpiece is higher than the opposite surfaces of the two first clamping plates 17. When the workpiece is subjected to hole processing, while the two second clamping plates 32 clamp and fix the processed workpiece, the two first clamping plates 17 can clamp and fix the processed workpiece again. Due to the arrangement of the roller 22 and the moving block 13, when the workpiece hole is processed, the moving speed of the moving block 13 and the position of the tool assembly 27 are adjusted to be relatively static according to the feed speed of the tool assembly 27 drilling the workpiece. At this time, the moving block 13 drives the first support plate 16 to move, the first support plate 16 drives the first clamping plate 17 to move, and the first clamping plate 17 drives the roller 22 to move, thereby forming a tracking clamping of the workpiece drilling position, ensuring the stable clamping of the drilling position, and effectively improving the accuracy of hole processing. The arrangement of the roller 22 can reduce the friction between the first clamping plate 17 and the workpiece during the tracking clamping process.

[0031] The movable plate 25 is a "U"-shaped plate. The movement of the movable plate 25 drives the tool assemblies 27 arranged on both sides of the movable plate 25 to move synchronously, which can effectively ensure that the positions of the two tool assemblies 27 for drilling holes in the workpiece correspond to each other, and effectively improve the accuracy of deep hole processing.

[0032] Further, such as Figure 1 As shown, a third motor 36 is provided on one side of the first side plate 11, two first screw rods 14 are symmetrically rotatably provided on the bracket 12, the first screw rods 14 are rotatably connected to the moving block 13, and the output end of the third motor 36 passes through the first side plate 11 and is connected to one end of the first screw rod 14.

[0033] Specifically, the third motor 36 is a common motor, which is a prior art and will not be elaborated in detail in this solution. The rotation of the third motor 36 drives the first screw rod 14 to rotate, and the rotation of the first screw rod 14 drives the moving block 13 to slide horizontally on the bracket 12.

[0034] Further, such as Figure 3 As shown, a first push cylinder 15 is disposed on the lower end surface of the moving block 13 , and an output end of the first push cylinder 15 is connected to the upper end surface of the first support plate 16 .

[0035] Specifically, the first push cylinder 15 includes an electric push cylinder, a hydraulic push cylinder and other structures, which are existing technologies and will not be elaborated in detail in this scheme. The output end of the first push cylinder 15 drives the first support plate 16 to move vertically, so that the moving block 13 can be adjusted in height according to the size of the workpiece to be processed.

[0036] Further, such as Figure 4 and Figure 6 As shown, a second screw rod 18 is rotatably provided on the first support plate 16 , and the second screw rod 18 is rotatably connected to the first clamping plate 17 .

[0037] Specifically, the second screw 18 is a birotational screw, and the rotation of the second screw 18 can make the two first clamping plates 17 move synchronously toward the middle or both ends, ensuring that the two first clamping plates 17 have the same clamping force on the workpiece during clamping.

[0038] Further, such as Figure 2 , Figure 4 and Figure 5 As shown, a second side plate 24 is disposed between the two first side plates 11 on one side of the bottom plate 10 , a second push cylinder 26 is disposed on one side of the second side plate 24 , and an output end of the second push cylinder 26 is connected to one side of the moving plate 25 .

[0039] Specifically, the second push cylinder 26 includes an electric push cylinder, a hydraulic push cylinder and other structures, which are existing technologies and will not be elaborated in detail in this scheme. The second push cylinder 26 is arranged in the middle part of one side of the second side plate 24. The output end of the second push cylinder 26 drives the movable plate 25 to move horizontally, so that the tool assembly 27 arranged at both ends of the movable plate 25 can move synchronously, and the horizontal position of the tool assembly 27 can also be adjusted according to the position where the workpiece needs to be punched.

[0040] Further, such as Figure 6 and Figure 7 As shown, a plurality of slide grooves 29 are arranged on the opposite sides of the two first side plates 11 , a plurality of sliders 30 are slidably arranged on the slide grooves 29 , and the sliders 30 are fixedly connected to one side of the moving plate 25 .

[0041] Specifically, the arrangement of the slide groove 29 and the slider 30 can prevent the movable plate 25 from moving up and down when moving horizontally, thereby effectively improving the drilling accuracy.

[0042] Further, such as Figure 1 and Figure 8 As shown, a second motor 34 is provided on one side of the second support plate 31, a third screw rod 33 is rotatably provided on the second support plate 31, the third screw rod 33 is rotatably connected to the second clamping plate 32, and the output end of the second motor 34 passes through the second support plate 31 and is connected to one end of the third screw rod 33.

[0043] Specifically, the second motor 34 is an ordinary motor, which is the existing technology and will not be elaborated in detail in this solution. The third screw rod 33 is a double-rotation screw. The output end of the second motor 34 drives the third screw rod 33 to rotate. The rotation of the third screw rod 33 can make the two second clamping plates 32 move synchronously to the middle or both ends, ensuring that the two second clamping plates 32 have the same clamping force on the workpiece during clamping.

[0044] Further, such as Figure 1 As shown, a fourth push cylinder 35 is disposed on the lower end surface of the bottom plate 10 , and an output end of the fourth push cylinder 35 passes through the bottom plate 10 and is fixedly connected to the lower end surface of the second support plate 31 .

[0045] Specifically, the fourth push cylinder 35 includes an electric push cylinder, a hydraulic push cylinder and other structures, which are existing technologies and will not be elaborated in detail in this scheme. The output end of the fourth push cylinder 35 can drive the second support plate 31 to move vertically, so that the equipment can be adjusted in the vertical direction according to the position of the hole to be processed.

[0046] First, place the workpiece to be punched between the two second clamping plates 32, start the second motor 34, and the output end of the second motor 34 drives the third screw rod 33 to rotate. The rotation of the third screw rod 33 drives the two second clamping plates 32 to move toward the workpiece until the workpiece is clamped and fixed. Then start the fourth push cylinder 35, and the output end of the fourth push cylinder 35 drives the second support plate 31 to move upward. The movement of the second support plate 31 drives the workpiece to move until the workpiece moves to the horizontal position where the hole needs to be processed and is the same as the horizontal position of the tool assembly 27.

[0047] Next, the second push cylinder 26 is started, and the output end of the second push cylinder 26 drives the movable plate 25 to move horizontally. The horizontal movement of the movable plate 25 drives the tool assembly 27 arranged on both sides of the movable plate 25 to move horizontally synchronously until the tool assembly 27 moves to the position where the workpiece needs to be processed.

[0048] Then, the two third motors 36 are started synchronously, and the output end of the third motor 36 drives the first screw rod 14 to rotate, and the rotation of the first screw rod 14 drives the moving block 13 to move horizontally, and the movement of the moving block 13 drives the first push cylinder 15 to move, and the first push cylinder 15 drives the first support plate 16 to move, and the first support plate 16 drives the first clamping plate 17 to move, until the two first clamping plates 17 move to the two ends of the workpiece, and then each first motor 23, the output end of the first motor 23 drives the second screw rod 18 to rotate, and the rotation of the second screw rod 18 drives the two first clamping plates 17 to approach the workpiece until the roller 22 set on the first clamping plate 17 tightly clamps the workpiece.

[0049] Finally, the third push cylinder 28 is started, and the output end of the third push cylinder 28 drives the tool assembly 27 to move horizontally to perform hole processing on the workpiece. During the hole processing process, the roller 22 tracks and clamps the position of the hole processing of the tool assembly 27 until the hole processing is completed. Embodiment 2:

[0050] Based on the first embodiment, a further embodiment is made, such as Figure 6 and Figure 7 As shown, a buffer pad 20 is arranged between the first groove 19 and the opening frame 21 .

[0051] Specifically, the buffer pad 20 is made of elastic material. When the workpiece is processed, the roller 22 is in close contact with the workpiece. The vibration of the workpiece drives the roller 22 to vibrate, and the vibration of the roller 22 drives the opening frame 21 to vibrate. The setting of the buffer pad 20 can effectively absorb the vibration of the opening frame 21 and the vibration generated during the workpiece hole processing, so that the workpiece tends to be stable, and the accuracy of hole processing is effectively increased.

[0052] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0053] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0054] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A small diameter deep hole machining machine, characterized in that: The invention comprises a bottom plate (10), first side plates (11) are symmetrically arranged on both sides of the bottom plate (10), a bracket (12) is arranged between the two first side plates (11) above the bottom plate (10), two moving blocks (13) are symmetrically slidably arranged on the bracket (12), a first supporting plate (16) is slidably arranged on the lower end surface of the moving block (13), two first clamping plates (17) are slidably arranged on the first supporting plate (16), and the two first clamping plates (17) are provided on opposite surfaces thereof. A plurality of first grooves (19) are arranged, an opening frame (21) is arranged inside the first groove (19), a roller (22) is rotatably arranged inside the opening frame (21), a moving plate (25) is slidably arranged between the two first side plates (11), a tool assembly (27) is symmetrically slidably arranged on both sides of the moving plate (25), a second supporting plate (31) is slidably arranged on the upper end surface of the bottom plate (10), and two second clamping plates (32) are slidably arranged on the second supporting plate (31).

2. A small diameter deep hole machining machine tool according to claim 1, characterized in that: A buffer pad (20) is provided between the first groove (19) and the opening frame (21).

3. A small diameter deep hole machining machine tool according to claim 1, characterized in that: A second side plate (24) is arranged between the two first side plates (11) on one side of the bottom plate (10), a second push cylinder (26) is arranged on one side of the second side plate (24), and an output end of the second push cylinder (26) is connected to one side of the moving plate (25).

4. A small diameter deep hole machining machine tool according to claim 2, characterized in that: Two first screw rods (14) are symmetrically rotatably arranged on the bracket (12), and the first screw rods (14) are rotatably connected to the moving block (13).

5. A small diameter deep hole machining machine tool according to claim 4, characterized in that: The lower end surface of the moving block (13) is provided with a first push cylinder (15), and the output end of the first push cylinder (15) is connected to the upper end surface of the first support plate (16).

6. A small diameter deep hole machining machine tool according to claim 5, characterized in that: A second screw rod (18) is rotatably disposed on the first supporting plate (16), and the second screw rod (18) is rotatably connected to the first clamping plate (17).

7. The small-diameter deep hole machining machine tool according to claim 1, characterized in that: A third screw rod (33) is rotatably arranged on the second supporting plate (31), and the third screw rod (33) is rotatably connected to the second clamping plate (32).

8. The small-diameter deep hole machining machine tool according to claim 3, characterized in that: A plurality of slide grooves (29) are arranged on opposite sides of the two first side plates (11), a plurality of sliders (30) are slidably arranged on the slide grooves (29), and the sliders (30) are fixedly connected to one side of the movable plate (25).

9. The small-diameter deep hole machining machine tool according to claim 1, characterized in that: A fourth push cylinder (35) is provided on the lower end surface of the bottom plate (10), and an output end of the fourth push cylinder (35) passes through the bottom plate (10) and is fixedly connected to the lower end surface of the second support plate (31).

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