Adjustable center of tailstock of numerical control machine tool

Abstract

The utility model belongs to the field of numerical control machine tools, and particularly relates to an adjustable center of a tailstock of a numerical control machine tool, which solves the problem that the angle of the center cannot be adjusted according to the requirements of workpieces in the prior art, and comprises a tailstock body, an adjusting mechanism and a center mechanism, and the adjusting mechanism comprises two vertical plates fixedly connected to the upper surface of the tailstock body. The adjusting mechanism and the center mechanism are matched with each other, when one of the two threaded rods is rotated, the corresponding sliding block can move along the corresponding guide column, the height of one end of the positioning cylinder can be changed through the arranged connecting rod and the arranged supporting rod, and the positioning precision is improved. And the effect of adjusting the inclination angles of the positioning cylinder and the sleeve is achieved, so that the angle of the ejector pin body installed at one end of the sleeve can be adjusted, the machining precision can be effectively improved, meanwhile, the machining range can be enlarged, the practicability of the device can be improved, and the device can meet the machining requirements of different workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to an adjustable center of a tailstock of a numerical control machine tool. Background Art

[0002] A CNC machine tool is an automated machine tool equipped with a program control system.

[0003] The function of the tailstock on a CNC machine tool is to use a sleeve to install the center to support one end of a longer workpiece. It can also be used to install drills, reamers and other tools for hole processing.

[0004] The authorization announcement number in the prior art is: CN205437176U, and its name is an adjustable center for the tailstock of a CNC machine tool. The device can stably position the sleeve or easily and conveniently move the sleeve simply by controlling the power on or off of the electromagnet, and has the advantage of being easy to use.

[0005] However, in actual use, it was found that the above device directly installed the positioning cylinder on the machine tool, and was unable to adjust the angle of the center according to the needs of the workpiece, which affected the versatility and flexibility of the device. Utility Model Content

[0006] The utility model solves the technical problem that the angle of the center can not be adjusted according to the requirements of the workpiece, and provides an adjustable center for the tailstock of a numerically controlled machine tool.

[0007] In order to solve the above technical problems, the utility model provides an adjustable center for the tailstock of a CNC machine tool, including a tailstock body, an adjustment mechanism and a center mechanism. The adjustment mechanism includes two vertical plates fixedly connected to the upper surface of the tailstock body, and a threaded rod rotatably sleeved inside the vertical plate and a guide column fixedly connected to the surface of the vertical plate. The outer surface of each of the guide columns is sleeved with a slidable slider, and the top ends of the two sliders are respectively threadedly connected to the outer surfaces of the two threaded rods.

[0008] The outer surface of each slider is hinged with a connecting rod through a pin shaft, the upper surface of the tailstock body is hinged with two supporting rods through a pin shaft, and the ends of the two supporting rods close to each other are respectively hinged to the inner walls of the two connecting rods, and the top mechanism includes a positioning cylinder and a sleeve, and the top ends of the two connecting rods are hinged to the bottom surface of the positioning cylinder.

[0009] Preferably, the ends of the two guide posts that are away from each other are fixedly connected with a limiting plate, and the diameter of the limiting plate is greater than the diameter of the guide post. By setting the limiting plate, the moving trajectory of the slider can be limited to prevent the slider from falling off during movement.

[0010] Preferably, the ends of the two threaded rods that are close to each other are fixedly connected with handles, and the outer surface of each handle is coated with an anti-slip layer. By providing a handle, the contact area of ​​the rotating end of the threaded rod can be increased, thereby facilitating the rotation of the threaded rod.

[0011] Preferably, a positioning block is fixedly connected to the inner wall of the positioning cylinder, and a positioning groove is opened on the outer surface of the sleeve. The sleeve is slidably mounted on the positioning block on the inner wall of the positioning cylinder through the positioning groove. By setting the positioning block and the positioning groove, the sleeve can move stably in the inner wall of the positioning cylinder.

[0012] Preferably, a threaded column is rotatably provided on the inner wall of the positioning cylinder, one end of the threaded column is threadedly connected to the inner wall of the sleeve, and the other end of the threaded column is fixedly connected to a handle. By providing the threaded column, the sleeve can be moved in the inner wall of the positioning cylinder when the threaded column is rotated, and the threaded column can be easily rotated by providing a handle.

[0013] Preferably, a conical groove is provided inside the sleeve, and a detachable ejector body is installed on the inner wall of the conical groove. The ejector body can be conveniently and stably installed on the sleeve by providing the conical groove.

[0014] Preferably, a through hole is provided inside the sleeve, and the tapered groove is connected with the threaded groove inside the sleeve through the through hole. The through hole can facilitate the disassembly of the ejector body installed on the sleeve.

[0015] Preferably, one end of the threaded column is fixedly connected to a push rod, the length of the push rod corresponds to the length of the conical groove, and the diameter of the push rod is smaller than the diameter of the through hole. By providing the push rod, when the threaded column rotates, the sleeve will move in the inner wall of the positioning cylinder, and the push rod will extend into the conical groove through the through hole, thereby facilitating the ejection and disassembly of the ejector body in the conical groove.

[0016] Compared with the related art, the utility model has the following beneficial effects:

[0017] 1. The utility model sets an adjustment mechanism and a top mechanism to cooperate with each other. When one of the two threaded rods is rotated, the corresponding slider can be moved along the corresponding guide column. The height of one end of the positioning cylinder can be changed by the provided connecting rod and the supporting rod, thereby achieving the effect of adjusting the inclination angle of the positioning cylinder and the sleeve. In this way, the angle of the ejector body installed at one end of the sleeve can be adjusted, which can effectively improve the processing accuracy, expand the processing range, improve the practicality of the device, and enable the device to meet the processing requirements of different workpieces.

[0018] 2. The utility model can make the sleeve stably move in the inner wall of the positioning tube by arranging the positioning block and the positioning groove, can stably mount the ejector body on the sleeve by arranging the conical groove, can facilitate the removal of the ejector body mounted on the sleeve by opening the through hole, and can facilitate the removal of the ejector body by arranging the ejector rod when the threaded column rotates, so that the sleeve can move in the inner wall of the positioning tube, and the ejector rod can extend into the conical groove through the through hole, so as to facilitate the ejection and removal of the ejector body in the conical groove.

[0019] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is the overall structure diagram of the utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the positioning tube of the utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the sleeve of the utility model;

[0024] Figure 4 It is a partial structural diagram of the utility model.

[0025] Numbers in the figure:

[0026] 1. Tailstock body; 2. Adjustment mechanism; 201. Vertical plate; 202. Threaded rod; 203. Slider; 204. Guide column; 205. Connecting rod; 206. Support rod; 207. Limiting piece; 208. Handle; 3. Top mechanism; 301. Positioning cylinder; 302. Positioning block; 303. Sleeve; 304. Positioning groove; 305. Conical groove; 306. Ejector body; 307. Threaded column; 308. Ejector rod; 309. Through hole; 310. Handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 The CNC machine tool tailstock adjustable center includes a tailstock body 1, an adjustment mechanism 2 and a center mechanism 3. The adjustment mechanism 2 includes two vertical plates 201 fixedly connected to the upper surface of the tailstock body 1, a threaded rod 202 rotatably sleeved inside the vertical plate 201, and a guide column 204 fixedly connected to the surface of the vertical plate 201.

[0029] The two threaded rods 202 can be rotated in the corresponding vertical plates 201 respectively, so as to facilitate the subsequent adjustment of the positions of other components.

[0030] The outer surface of each guide column 204 is sleeved with a slidable slider 203 , and the top ends of the two sliders 203 are respectively threadedly connected to the outer surfaces of the two threaded rods 202 .

[0031] The ends of the two threaded rods 202 that are close to each other are fixedly connected with handles 208, and the outer surface of each handle 208 is coated with an anti-slip layer. By providing the handles 208, the contact area of ​​the rotating end of the threaded rod 202 can be increased, making it easier to rotate the threaded rod 202.

[0032] The ends of the two guide posts 204 that are away from each other are fixedly connected with a limiting plate 207, and the diameter of the limiting plate 207 is greater than the diameter of the guide post 204. By setting the limiting plate 207, the moving trajectory of the slider 203 can be limited to prevent the slider 203 from falling off during movement.

[0033] When the handle 208 is rotated, the corresponding threaded rod 202 is driven to rotate, so that the corresponding slider 203 moves along the corresponding guide column 204 .

[0034] The outer surface of each slider 203 is hinged with a connecting rod 205 through a pin shaft, and the upper surface of the tailstock body 1 is hinged with two supporting rods 206 through a pin shaft. The ends of the two supporting rods 206 close to each other are respectively hinged to the inner walls of the two connecting rods 205. The top mechanism 3 includes a positioning cylinder 301 and a sleeve 303. The top ends of the two connecting rods 205 are hinged to the bottom surface of the positioning cylinder 301.

[0035] When one of the two handles 208 is rotated, the corresponding threaded rod 202 will rotate, so that the corresponding slider 203 can move along the corresponding guide column 204. At this time, the height of one end of the positioning tube 301 can be changed by setting the connecting rod 205 and the support rod 206, while the height of the other end does not change, so that the effect of adjusting the inclination angle of the positioning tube 301 can be achieved.

[0036] like Figure 2 and Figure 3 As shown, the reason why the positioning cylinder 301 and the sleeve 303 are set to be in a longer state is that the device can adjust the extension distance of the sleeve 303 according to the processing conditions of the workpiece, so as to meet the processing requirements of different workpieces.

[0037] A positioning block 302 is fixedly connected to the inner wall of the positioning cylinder 301, and a positioning groove 304 is provided on the outer surface of the sleeve 303. The sleeve 303 is slidably mounted on the positioning block 302 on the inner wall of the positioning cylinder 301 through the positioning groove 304. By setting the positioning block 302 and the positioning groove 304, the sleeve 303 can move stably in the inner wall of the positioning cylinder 301.

[0038] When the tilt angle of the positioning tube 301 changes, the tilt angle of the sleeve 303 slidably mounted on the inner wall thereof will also change.

[0039] A threaded column 307 is rotatably sleeved on the inner wall of the positioning cylinder 301 , one end of the threaded column 307 is threadedly connected to the inner wall of the sleeve 303 , and the other end of the threaded column 307 is fixedly connected to a handle 310 .

[0040] By providing the threaded column 307 , when the threaded column 307 rotates, the sleeve 303 can move along the positioning block 302 in the inner wall of the positioning tube 301 , and by providing the handle 310 , the threaded column 307 can be easily rotated.

[0041] The sleeve 303 is provided with a conical groove 305, and a detachable ejector body 306 is installed on the inner wall of the conical groove 305. The shape of the conical groove 305 is as follows: Figure 2 and Figure 3 As shown, by providing the tapered groove 305 , the ejector body 306 can be conveniently and stably mounted on the sleeve 303 .

[0042] In summary, by rotating one of the two handles 208 , the tilt angle of the positioning cylinder 301 can be changed, and the tilt angle of the sleeve 303 will also change accordingly, so that the tilt angle of the ejector body 306 installed in the conical groove 305 will also change.

[0043] By adjusting the inclination angle of the ejector body 306 and the extension length of the sleeve 303, more flexible processing operations can be achieved to meet the processing requirements of different workpieces.

[0044] Furthermore, when the workpiece needs to be processed through multiple processing steps, and different processing steps need to be performed at different angles, the above requirements can be met by rotating one of the two handles 208 .

[0045] Finally, by adjusting the tilt angle of the ejector body 306, the machine tool can process workpieces with more complex geometric shapes. For example, when processing certain holes or surfaces that require tilting, the operation can be performed more conveniently, effectively optimizing the operation and processing process.

[0046] A through hole 309 is provided inside the sleeve 303 , and the tapered groove 305 is connected to the threaded groove inside the sleeve 303 through the through hole 309 . The through hole 309 facilitates the disassembly of the ejector body 306 installed on the sleeve 303 .

[0047] One end of the threaded column 307 is fixedly connected with a push rod 308 . The length of the push rod 308 corresponds to the length of the tapered groove 305 . The diameter of the push rod 308 is smaller than the diameter of the through hole 309 .

[0048] By setting the ejector rod 308, when the threaded column 307 rotates, the sleeve 303 will move in the inner wall of the positioning tube 301, and the ejector rod 308 will extend into the conical groove 305 through the through hole 309, so as to facilitate the ejection and disassembly of the ejector body 306 in the conical groove 305.

[0049] The specific implementation process of the utility model is as follows: when in use, the tailstock body 1 is installed on the CNC machine tool, and then one end of the ejector body 306 is installed in the cone groove 305, and then the tilt angle of the ejector body 306 is adjusted according to the needs of the workpiece to be processed. When adjusting the tilt angle of the ejector body 306, it can be adjusted by rotating one of the two handles 208. Here, an example is given, and the specific operation requires the staff to select according to the on-site situation. When one of the handles 208 is rotated, the corresponding threaded rod 202 will be driven to rotate, so that the corresponding slider 203 moves along the guide column 204. When the guide column 204 is rotated, the corresponding slider 203 moves along the guide column 204. When the column 204 moves, the height of the corresponding end of the positioning cylinder 301 can be adjusted by the provided connecting rod 205 and the supporting rod 206, so as to achieve the effect of adjusting the inclination angle of the positioning cylinder 301, so that the inclination angle of the ejector body 306 can be adjusted. The staff can adjust the inclination angle of the ejector body 306 according to the on-site conditions, and then adjust the extension distance of the sleeve 303 and the ejector body 306 by turning the handle 310. In this way, by adjusting the position and inclination angle of the ejector body 306, the device can meet the processing requirements of a variety of different workpieces, thereby improving the practicality and flexibility of the device.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A CNC machine tool tailstock with an adjustable center, comprising a tailstock body (1), an adjustment mechanism (2) and a center mechanism (3), characterized in that: The adjustment mechanism (2) comprises two vertical plates (201) fixedly connected to the upper surface of the tailstock body (1), a threaded rod (202) rotatably sleeved inside the vertical plates (201) and a guide column (204) fixedly connected to the surface of the vertical plates (201), the outer surface of each guide column (204) being sleeved with a slidable slider (203), and the top ends of the two sliders (203) being respectively threadedly connected to the outer surfaces of the two threaded rods (202); The outer surface of each slider (203) is hinged with a connecting rod (205) via a pin shaft, and the upper surface of the tailstock body (1) is hinged with two supporting rods (206) via a pin shaft, and the ends of the two supporting rods (206) close to each other are respectively hinged with the inner walls of the two connecting rods (205), and the top end of the two connecting rods (205) is hinged to the bottom surface of the positioning cylinder (301).

2. The CNC machine tool tailstock adjustable center according to claim 1, characterized in that: One end of the two guide posts (204) that is away from each other is fixedly connected to a limiting plate (207), and the diameter of the limiting plate (207) is greater than the diameter of the guide post (204).

3. The CNC machine tool tailstock adjustable center according to claim 1, characterized in that: One end of the two threaded rods (202) close to each other is fixedly connected with a handle (208), and the outer surface of each handle (208) is coated with an anti-slip layer.

4. The CNC machine tool tailstock adjustable center according to claim 1, characterized in that: The inner wall of the positioning cylinder (301) is fixedly connected with a positioning block (302), the outer surface of the sleeve (303) is provided with a positioning groove (304), and the sleeve (303) is slidably sleeved on the positioning block (302) on the inner wall of the positioning cylinder (301) through the positioning groove (304).

5. The CNC machine tool tailstock adjustable center according to claim 4, characterized in that: The inner wall of the positioning cylinder (301) is rotatably sleeved with a threaded column (307), one end of the threaded column (307) is threadedly connected to the inner wall of the sleeve (303), and the other end of the threaded column (307) is fixedly connected to a handle (310).

6. The adjustable center of the tailstock of a CNC machine tool according to claim 5, characterized in that: A conical groove (305) is provided inside the sleeve (303), and a detachable ejector pin body (306) is installed on the inner wall of the conical groove (305).

7. The adjustable center of the tailstock of a CNC machine tool according to claim 6, characterized in that: A through hole (309) is provided inside the sleeve (303), and the tapered groove (305) is connected to the thread groove inside the sleeve (303) through the through hole (309).

8. The CNC machine tool tailstock adjustable center according to claim 7, characterized in that: One end of the threaded column (307) is fixedly connected to a push rod (308), the length of the push rod (308) corresponds to the length of the conical groove (305), and the diameter of the push rod (308) is smaller than the diameter of the through hole (309).

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