Rapid centering device for center lathe

Abstract

The utility model discloses a quick centering device for a center lathe, which is characterized in that a powerful clamping handle is fixedly clamped on a clamping jaw of the lathe, and a powerful collet chuck and a lock nut are arranged on the powerful clamping handle to be matched, so that a workpiece is clamped on the powerful collet chuck of the powerful clamping handle instead of being originally clamped on four jaws, and the clamping processing of the workpiece is realized. Therefore, a traditional clamping method is improved, the simple centering seat device is designed, the mode that the centering seat device is clamped on the powerful collet chuck of the powerful clamping handle instead of the mode that the centering seat device is clamped on four jaws originally is changed, the powerful collet chuck is locked through the lock nut, the powerful clamping handle is fixedly clamped on a lathe clamping jaw, and the clamping jaw is adjusted. The circle run-out is within a certain reasonable range through measurement of an instrument, each time of workpiece clamping is achieved through the lock nut and the powerful collet chuck, so that the clamping jaw does not need to be frequently loosened and tightened for positioning, production efficiency can be improved when a lathe works, the workpiece cannot be damaged, and the device is simple in structure and flexible to operate.

Description

Technical Field

[0001] The utility model belongs to the field of clamping devices for general machining, and relates to a quick centering device for a general lathe. Background Art

[0002] A lathe is a machine tool mainly used for turning a rotating workpiece with a turning tool. Drills, reamers, broaches, taps, dies, knurling tools, etc. can also be used for corresponding processing on the lathe. To position the workpiece stably during processing, a clamping mechanism is usually used on the workbench of the lathe.

[0003] When using a general lathe to process a large number of stepped shaft parts, a four-jaw chuck is often used for centering operations. For each workpiece clamped, a centering adjustment operation of the four-jaw chuck needs to be carried out, which not only has low production efficiency, but also causes a certain degree of damage to the local surface of the workpiece, or affects the appearance of the workpiece. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that in the prior art, for each workpiece clamped, a centering adjustment operation of the four-jaw chuck needs to be carried out, which not only has low production efficiency, but also causes a certain degree of damage to the local surface of the workpiece, and proposes a quick centering device for a general lathe.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A quick centering device for a general lathe proposed by the utility model includes a powerful clamping handle installed on a jaw;

[0007] At the other end of the powerful clamping handle, a powerful collet for fixing the workpiece to be processed is installed, and a locking nut is sleeved on the powerful collet.

[0008] Preferably, the powerful clamping handle is installed at the central position of the jaw.

[0009] Preferably, both the powerful collet and the locking nut are cylindrical structures.

[0010] Preferably, one end of the powerful collet is provided with a convex structure.

[0011] Preferably, a plurality of grooves are formed on the end wall of the powerful collet provided with the convex structure.

[0012] Preferably, the grooves are equally spaced and equally high.

[0013] Preferably, an annular protective sleeve is installed at one end of the locking nut, and a through hole is provided at the center of the annular protective sleeve.

[0014] Preferably, the annular protective sleeve is movably connected to the lock nut.

[0015] Preferably, the other end of the workpiece to be machined is clamped on the lathe center, and the lathe center is installed on the lathe tailstock.

[0016] Preferably, the jaws are installed on the chuck.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] A quick centering device for a common lathe proposed by the present utility model, the strong clamping handle is fixedly clamped on the jaws of the lathe. By using the method of setting and installing a strong collet and a lock nut on the strong clamping handle, the workpiece is changed from being clamped on the four jaws to being clamped on the strong collet of the strong clamping handle to realize the clamping and machining of the workpiece. Therefore, the present utility model improves the traditional clamping method, designs a simple centering seat device, changes from being clamped on the four jaws to being clamped on the strong collet of the strong clamping handle, uses a lock nut to lock the strong collet, and the strong clamping handle is fixedly clamped on the lathe jaws. After adjusting the jaws and measuring with an instrument to make its circular runout within a certain reasonable range, each time the workpiece is clamped through the lock nut and the strong collet. In this way, it is not necessary to frequently loosen and tighten the jaws for positioning. During the operation of the lathe, it can not only improve the production efficiency, but also will not damage the workpiece, and its structure is simple and the operation is flexible.

[0019] Further, one end of the strong collet is provided with a convex structure to make it more firm when the lock nut and the strong collet cooperate.

[0020] Further, several grooves are opened on the end wall of the strong collet with the convex structure to facilitate the placement of the workpiece into the strong collet.

[0021] Further, an annular protective sleeve is installed at one end of the lock nut, and a through hole is provided in the center of the annular protective sleeve to play a locking role. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a structural diagram of the quick centering device for a common lathe of the present utility model.

[0024] Figure 2 It is a structural diagram of the strong clamping handle of the present utility model.

[0025] Figure 3 This is the structural diagram of the powerful collet of the present utility model.

[0026] Figure 4 This is the structural diagram of the locking nut of the present utility model.

[0027] Wherein: 1 - clamping jaw, 2 - powerful clamping handle, 3 - workpiece to be processed, 4 - lathe center, 5 - powerful collet, 6 - locking nut, 7 - chuck, 8 - lathe tailstock. Specific embodiments

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present utility model is placed habitually. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0032] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0033] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The following further describes the present utility model in detail with reference to the accompanying drawings:

[0035] Embodiment 1

[0036] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown, includes a strong clamping handle 2 installed on the jaw 1; at the other end of the strong clamping handle 2, a strong collet 5 for fixing the workpiece 3 to be processed is installed, and a locking nut 6 is sleeved on the strong collet 5. The strong clamping handle 2 is fixedly clamped on the jaw 1 of the lathe. By using the method of installing and matching the strong collet 5 and the locking nut 6 on the strong clamping handle 2, the workpiece is changed from being originally clamped on the four jaws to being clamped on the strong collet 5 of the strong clamping handle 2 to realize the clamping and processing of the workpiece. Therefore, by improving the traditional clamping method, the present utility model designs a simple centering seat device, which is changed from being originally clamped on the four jaws to being clamped on the strong collet 5 of the strong clamping handle 2. The locking nut 6 is used to lock the strong collet 5, and the strong clamping handle 2 is fixedly clamped on the lathe jaw 1. After adjusting the jaw and measuring with an instrument to make its circular runout within a certain reasonable range, each time the workpiece is clamped through the locking nut 6 and the strong collet 5. In this way, it is not necessary to frequently loosen and tighten the jaw for positioning. During the operation of the lathe, it can not only improve the production efficiency but also not damage the workpiece, and its structure is simple and the operation is flexible.

[0037] Embodiment 2

[0038] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown, includes a strong clamping handle 2 installed on the jaw 1; at the other end of the strong clamping handle 2, a strong collet 5 for fixing the workpiece 3 to be processed is installed, and a locking nut 6 is sleeved on the strong collet 5. The strong clamping handle 2 is installed at the central position of the jaw 1.

[0039] Embodiment 3

[0040] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4As shown in the figure, it includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be processed is installed, and a locking nut 6 is sleeved on the powerful collet 5. Both the powerful collet 5 and the locking nut 6 are cylindrical structures.

[0041] Embodiment 4

[0042] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown in the figure, includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be processed is installed, and a locking nut 6 is sleeved on the powerful collet 5. Both the powerful collet 5 and the locking nut 6 are cylindrical structures. One end of the powerful collet 5 is provided with a convex structure.

[0043] Embodiment 5

[0044] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown in the figure, includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be processed is installed, and a locking nut 6 is sleeved on the powerful collet 5. Both the powerful collet 5 and the locking nut 6 are cylindrical structures. One end of the powerful collet 5 is provided with a convex structure. On the end wall of the powerful collet 5 with the convex structure, several grooves are opened.

[0045] Embodiment 6

[0046] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown in the figure, includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be processed is installed, and a locking nut 6 is sleeved on the powerful collet 5. Both the powerful collet 5 and the locking nut 6 are cylindrical structures. One end of the powerful collet 5 is provided with a convex structure. On the end wall of the powerful collet 5 with the convex structure, several grooves are opened. The grooves are arranged at equal heights and equal intervals.

[0047] Embodiment 7

[0048] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown in the figure, includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be processed is installed, and a locking nut 6 is sleeved on the powerful collet 5. Both the powerful collet 5 and the locking nut 6 are cylindrical structures. At one end of the locking nut 6, an annular protective sleeve is installed, and a through hole is provided at the center of the annular protective sleeve.

[0049] Embodiment 8

[0050] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown, includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be machined is installed, and a locking nut 6 is sleeved on the powerful collet 5. Both the powerful collet 5 and the locking nut 6 are cylindrical structures. At one end of the locking nut 6, an annular protective sleeve is installed, and a through hole is provided at the center of the annular protective sleeve. Among them, the annular protective sleeve is movably connected to the locking nut 6.

[0051] Embodiment 9

[0052] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown, includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be machined is installed, and a locking nut 6 is sleeved on the powerful collet 5. The other end of the workpiece 3 to be machined is clamped on the lathe center 4, and the lathe center 4 is installed on the lathe tailstock 8.

[0053] Embodiment 10

[0054] A rapid centering device for a common lathe proposed by the present utility model, as Figures 1 to 4 shown, includes a powerful clamping handle 2 installed on the jaw 1; at the other end of the powerful clamping handle 2, a powerful collet 5 for fixing the workpiece 3 to be machined is installed, and a locking nut 6 is sleeved on the powerful collet 5. The jaw 1 is installed on the chuck 7.

[0055] The rapid centering device for a common lathe proposed by the present utility model realizes the clamping and machining of the workpiece 3 by changing the clamping of the workpiece 3 from the original four jaws to the powerful collet 5 by using the method of installing and matching the powerful collet 5 and the locking nut 6 on the powerful clamping handle 2. The size of the collet 5 can be replaced according to the diameter of the clamping shaft. The adjustment of the circular runout of the workpiece 3 to be machined is realized by adjusting the powerful clamping handle 2 clamped by the jaw 1. The adjustment of the circular runout is only done once, and each time the workpiece is clamped through the locking nut 6 and the powerful collet 5, so that it is not necessary to frequently loosen and tighten the positioning of the jaw 1.

[0056] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A quick centering device for a common lathe, characterized in that, It includes a powerful clamping handle (2) installed on the jaw (1); At the other end of the powerful clamping handle (2), a powerful collet (5) for fixing the workpiece to be machined (3) is installed. The powerful collet (5) is of a cylindrical structure. One end of the powerful collet (5) is provided with a convex structure, and several grooves are formed on the end wall of the powerful collet (5) with the convex structure. A locking nut (6) is sleeved on the powerful collet (5), and an annular protective sleeve is installed at one end of the locking nut (6). A through hole is provided at the center of the annular protective sleeve, and the annular protective sleeve is movably connected to the locking nut (6).

2. The quick centering device for a common lathe according to claim 1, characterized in that, The powerful clamping handle (2) is installed at the central position of the jaw (1).

3. The rapid centering device for a conventional lathe according to claim 1, characterized in that, The locking nut (6) is of a cylindrical structure.

4. The quick centering device for a conventional lathe according to claim 1, characterized in that, The grooves are arranged at equal height and equal intervals.

5. The rapid centering device for a common lathe according to claim 1, characterized in that, The other end of the workpiece to be machined (3) is clamped on the lathe center (4), and the lathe center (4) is installed on the lathe tailstock (8).

6. The quick centering device for a common lathe according to claim 1, characterized in that, The jaw (1) is installed on the chuck (7).

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