Tailstock following mechanism for numerical control machine tool

Abstract

The utility model belongs to the technical field of tailstock following mechanisms, and particularly relates to a tailstock following mechanism used on a numerical control machine tool, which comprises a tailstock body arranged on a guide rail on one side of the machine tool and a cross saddle arranged on a guide rail on the other side of the machine tool, a mounting seat is fixedly mounted on the tailstock body, a positioning rod is slidably connected onto the mounting seat, and the cross saddle is fixedly connected with the tailstock body. One end of the positioning rod can be connected into the cross saddle through a first limiting assembly, and the other end of the positioning rod can be further connected into the installation base through a second limiting assembly. And the positioning rod and the cross carriage are separated, so that the moving stability of the tailstock body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tailstock follow-up mechanisms, and particularly to a tailstock follow-up mechanism for a numerical control machine tool. Background Technique

[0002] The telescopic movement of the tailstock sleeve of a numerical control machine tool is hydraulically controlled (the tailstock sleeve and the piston rod on the tailstock body form a set of hydraulic cylinder devices). The tailstock sleeve can be extended or retracted under the numerical control instructions of the machine tool and can participate in the numerical control programming of part cutting. The tailstock of a numerical control machine tool is classified according to the fixing method of the tailstock body and the tailstock guide rail and the moving method of the tailstock body, and is divided into two forms: a manual tailstock and an automatic tailstock. A manual tailstock means that the locking device between the tailstock body and the tailstock guide rail on the machine tool is realized by a manual control method, and the movement of the tailstock body is achieved by manually pushing the tailstock body forward or backward along the tailstock guide rail. An automatic tailstock means that the locking device between the tailstock body and the tailstock guide rail on the machine tool is realized by an automatic control method (generally a hydraulic locking method), and the tailstock body has an automatic driving device. The tailstock body moves forward or backward under the control of the numerical control instructions of the machine tool, so that the tailstock body can be automatically moved to a suitable position for clamping the workpiece, which is a truly numerically controllable programmable automatic tailstock.

[0003] For a general manual tailstock, the movement of its tailstock body is achieved by manually pushing the tailstock body forward or backward along the tailstock guide rail. However, for the tailstock of a machine tool with a medium or larger specification, due to the heavy self-weight of the tailstock, the frictional resistance between the tailstock body and the tailstock guide rail is relatively large, and it is quite difficult to manually push the tailstock body.

[0004] The existing patent CN201446242U discloses a tailstock follow-up mechanism for a machine tool. Although this patent can solve the above problems, in this patent, when the tailstock body moves, there will be a phenomenon that the pin shaft is separated from the cross slide, which will affect the movement of the tailstock body. Therefore, a tailstock follow-up mechanism for a numerical control machine tool is invented. Summary of the Utility Model

[0005] In view of the above and / or problems existing in the prior art of a tailstock follow-up mechanism for a numerical control machine tool, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a tailstock follow-up mechanism for a numerical control machine tool, which can solve the above-mentioned existing problems.

[0007] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0008] A tailstock follow-up mechanism for a numerically controlled machine tool, which includes a tailstock body arranged on the guide rail on one side of the machine tool and a cross slide arranged on the guide rail on the other side of the machine tool. An installation seat is fixedly installed on the tailstock body, and a positioning rod is slidably connected to the installation seat. One end of the positioning rod can be connected to the cross slide through a first limiting component, and one end of the positioning rod can also be connected to the installation seat through a second limiting component.

[0009] As a preferred solution of the tailstock follow-up mechanism for a numerically controlled machine tool described in the present invention, wherein: a guide hole is opened in the installation seat, and the inner cavity of the guide hole is slidably connected with the positioning rod.

[0010] As a preferred solution of the tailstock follow-up mechanism for a numerically controlled machine tool described in the present invention, wherein: limiting plates are fixedly installed on both sides of one end of the positioning rod, and a driving plate is fixedly installed at the other end of the positioning rod.

[0011] As a preferred solution of the tailstock follow-up mechanism for a numerically controlled machine tool described in the present invention, wherein: the first limiting component includes:

[0012] A positioning groove, which is opened in the cross slide;

[0013] A first hollow circular plate, which is fixedly installed in the positioning groove, and one end of the positioning rod can pass through the first hollow circular plate;

[0014] First grooves, which are opened at both ends of the first hollow circular plate, and the limiting plate can pass through the first grooves.

[0015] As a preferred solution of the tailstock follow-up mechanism for a numerically controlled machine tool described in the present invention, wherein: the second limiting component includes:

[0016] A storage groove, which is opened in the installation seat;

[0017] A second hollow circular plate, which is fixedly installed in the storage groove, and one end of the positioning rod can pass through the second hollow circular plate;

[0018] Second grooves, which are opened at both ends of the second hollow circular plate, and the limiting plate can pass through the second grooves.

[0019] As a preferred solution of the tailstock follow-up mechanism for a numerically controlled machine tool described in the present invention, wherein: an arrow indication is provided on the outer surface of the driving plate to facilitate personnel to judge the position of the limiting plate.

[0020] Compared with the prior art:

[0021] By setting the first limiting component to connect one end of the positioning rod to the cross slide, it can avoid the separation of the positioning rod and the cross slide when the tailstock body moves, thereby improving the moving stability of the tailstock body. Description of the Drawings

[0022] Figure 1 Schematic diagram of the connection state between the cross slide and the tailstock body of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at A in the present invention;

[0024] Figure 3 Schematic diagram of the separated state between the cross slide and the tailstock body of the present invention;

[0025] Figure 4 Side view schematic diagram of the partial structure of the first limiting component of the present invention;

[0026] Figure 5 Side view schematic diagram of the positioning rod and the limiting plate of the present invention;

[0027] Figure 6 Side view schematic diagram of the partial structure of the second limiting component of the present invention;

[0028] Figure 7 Schematic diagram of the structure of the driving plate of the present invention.

[0029] In the figure: cross slide 10, tailstock body 20, mounting seat 30, guide hole 40, receiving groove 41, positioning groove 42, positioning rod 43, driving plate 44, limiting plate 45, first hollow circular plate 46, first groove 47, second hollow circular plate 48, second groove 49, arrow indication 491. Detailed Embodiment

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail with reference to the accompanying drawings.

[0031] The present invention provides a tailstock follow-up mechanism for a numerically controlled machine tool. Please refer to Figures 1-7, including a tailstock body 20 arranged on one side guide rail of the machine tool and a cross slide 10 arranged on the other side guide rail of the machine tool. An installation base 30 is fixedly installed on the tailstock body 20. A positioning rod 43 is slidably connected to the installation base 30. One end of the positioning rod 43 can be connected to the cross slide 10 through a first limiting component, and one end of the positioning rod 43 can also be connected to the installation base 30 through a second limiting component. A guiding hole 40 is opened in the installation base 30, and the inner cavity of the guiding hole 40 slidably connects the positioning rod 43. Limiting plates 45 are fixedly installed on both sides of one end of the positioning rod 43. A driving plate 44 is fixedly installed at the other end of the positioning rod 43. An arrow indication 491 is provided on the outer surface of the driving plate 44 to facilitate personnel to judge the position of the limiting plate 45.

[0032] The first limiting component includes: a positioning groove 42, a first hollow circular plate 46, and a first groove 47;

[0033] The positioning groove 42 is opened in the cross slide 10. The first hollow circular plate 46 is fixedly installed in the positioning groove 42, and one end of the positioning rod 43 can pass through the first hollow circular plate 46. First grooves 47 are opened at both ends of the first hollow circular plate 46, and the limiting plate 45 can pass through the first grooves 47.

[0034] The second limiting component includes: a receiving groove 41, a second hollow circular plate 48, and a second groove 49;

[0035] The receiving groove 41 is opened in the installation base 30. The second hollow circular plate 48 is fixedly installed in the receiving groove 41, and one end of the positioning rod 43 can pass through the second hollow circular plate 48. Second grooves 49 are opened at both ends of the second hollow circular plate 48, and the limiting plate 45 can pass through the second grooves 49.

[0036] During specific use, when the position of the tailstock body 20 needs to be adjusted, first manually loosen the locking device between the tailstock body 20 and the tailstock guide rail on the machine tool. Then, move the cross slide 10 to a suitable position above the tailstock body 20. At this time, move the positioning rod 43 into the positioning groove 42 through the driving plate 44 until one end of the positioning rod 43 passes through the first hollow circular plate 46 and the limiting plate 45 passes through the first groove 47. Then, rotate the positioning rod 43 to stagger the limiting plate 45 and the first groove 47 to avoid separation. At this time, the cross slide 10 can drive the tailstock body 20 to move;

[0037] When the position of the tailstock body 20 does not need to be adjusted, first manually lock the locking device between the tailstock body 20 and the tailstock guide rail on the machine tool. Then, move the positioning rod 43 into the receiving groove 41 through the driving plate 44 until one end of the positioning rod 43 passes through the second hollow circular plate 48 and the limiting plate 45 passes through the second groove 49. After that, rotate the positioning rod 43 to stagger the limiting plate 45 and the second groove 49, so that one end of the positioning rod 43 can be received.

[0038] Although the present invention has been described with reference to the embodiments above, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tailstock accompanying mechanism for a numerically controlled machine tool, comprising a tailstock body (20) arranged on a guide rail on one side of the machine tool and a cross carriage (10) arranged on a guide rail on the other side of the machine tool, wherein a mounting seat (30) is fixedly mounted on the tailstock body (20), characterized in that: A positioning rod (43) is slidably connected to the mounting seat (30), one end of the positioning rod (43) can be connected to the cross slide (10) through a first limiting assembly, and one end of the positioning rod (43) can also be connected to the mounting seat (30) through a second limiting assembly.

2. The tailstock follower mechanism for a CNC machine tool according to claim 1, characterized in that: A guide hole (40) is provided in the mounting seat (30), and the inner cavity of the guide hole (40) is slidably connected to a positioning rod (43).

3. The tailstock follower mechanism for a CNC machine tool according to claim 1, characterized in that: Limiting plates (45) are fixedly mounted on both sides of one end of the positioning rod (43), and a driving plate (44) is fixedly mounted on the other end of the positioning rod (43).

4. The tailstock follower mechanism for a CNC machine tool according to claim 3, characterized in that: The first limiting component comprises: A positioning groove (42), wherein the positioning groove (42) is formed in the cross carriage (10); A first hollow circular plate (46), wherein the first hollow circular plate (46) is fixedly installed in the positioning groove (42), and one end of the positioning rod (43) can pass through the first hollow circular plate (46); A first groove (47), wherein both ends of the first hollow circular plate (46) are provided with a first groove (47), and the limiting plate (45) can pass through the first groove (47).

5. The tailstock follower mechanism for a CNC machine tool according to claim 3, characterized in that: The second limiting component comprises: A receiving groove (41), wherein the receiving groove (41) is provided in the mounting seat (30); A second hollow circular plate (48), wherein the second hollow circular plate (48) is fixedly installed in the receiving groove (41), and one end of the positioning rod (43) can pass through the second hollow circular plate (48); A second groove (49), wherein both ends of the second hollow circular plate (48) are provided with a second groove (49), and the limiting plate (45) can pass through the second groove (49).

6. The tailstock follower mechanism for a CNC machine tool according to claim 3, characterized in that: An arrow indication (491) is provided on the outer surface of the driving plate (44) to facilitate personnel to determine the position of the limiting plate (45).

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