Main shaft chuck positioning structure of precision automatic lathe

Abstract

The utility model discloses a spindle chuck positioning structure of a precision automatic lathe, which belongs to the field of spindle chucks and comprises a chuck body, positioning grooves are symmetrically arranged on the rear portion of the inner side wall of the chuck body, a mounting plate is slidably connected inside the chuck body, a positioning mechanism is arranged inside the mounting plate, and the positioning mechanism is connected with the chuck body. According to the positioning structure for the spindle chuck of the precision automatic lathe, the mounting plate is mounted in the chuck body through the arrangement of the mounting plate and the positioning mechanism, the rotary knob is rotated through a screwdriver to drive the threaded rod to rotate, the connecting plate is limited through the limiting rod, and then the positioning barrel is limited; and when the threaded rod rotates, the positioning barrel moves, so that the position of the positioning barrel is adjusted, the distance of a workpiece arranged outside the chuck can be conveniently adjusted according to needs, the workpiece is positioned, position overtravel is avoided, and the machining precision of the workpiece is prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spindle chuck, concretely to a main shaft chuck positioning structure of a jig boring and milling machine. BACKGROUND

[0002] The jig boring and milling machine is a commonly used mechanical processing equipment, when processing workpieces, the workpieces are usually fixed by using the clamping device installed on the main shaft or the auxiliary main shaft, the clamping device of the jig boring and milling machine usually comprises a clamping chuck, the clamping chuck is used to clamp and fix the parts through external clamping, and the inner hole shape of the clamping chuck can be circular, square or polygonal according to the cross-sectional shape of the clamped workpiece.

[0003] The current chuck cannot be clamped and positioned when clamping the workpiece, manual clamping often causes the position of the workpiece to be out of range after clamping, which affects the machining accuracy of the workpiece, and once the deviation exceeds a certain range, the workpiece can only be scrapped, which not only wastes time but also increases production cost, therefore, the main shaft chuck positioning structure of the jig boring and milling machine is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a main shaft chuck positioning structure of a jig boring and milling machine, which solves the problem that the current chuck cannot be clamped and positioned when clamping the workpiece, manual clamping often causes the position of the workpiece to be out of range after clamping, which affects the machining accuracy of the workpiece, and once the deviation exceeds a certain range, the workpiece can only be scrapped, which not only wastes time but also increases production cost.

[0005] To achieve the above object, the utility model provides the following technical scheme: a main shaft chuck positioning structure of a jig boring and milling machine, which comprises a chuck body, a positioning groove is symmetrically arranged on the rear part of the inner side wall of the chuck body, an installation plate is slidably connected to the inside of the chuck body, and a positioning mechanism is arranged in the installation plate.

[0006] A positioning block is fixedly connected to the outer side wall of the installation plate and slidably connected to the inside of the positioning groove, and a connecting mechanism is arranged on the outer side of the installation plate.

[0007] The positioning mechanism comprises a threaded rod, a knob, a positioning cylinder, a connecting plate, a limiting rod and a cross slot, the threaded rod is rotatably connected to the front side of the installation plate, the rear end of the threaded rod is fixedly connected with the knob, the outer side wall of the threaded rod is symmetrically screwed with the positioning cylinder through threads, the rear part of the outer side wall of the positioning cylinder is fixedly connected with the connecting plate, the rear side of the connecting plate is fixedly connected with the limiting rod, and the back of the knob is provided with the cross slot.

[0008] Further description of the above technical scheme:

[0009] The outer side wall of the threaded rod is fixedly connected with a thrust ring, and the thrust ring is located on the front side of the mounting plate.

[0010] As a further description of the above technical solution:

[0011] The limiting rod penetrates the rear side of the mounting plate, and is in sliding connection between the limiting rod and the mounting plate, and the rear end of the limiting rod is fixedly connected with a baffle.

[0012] As a further description of the above technical solution:

[0013] The connecting mechanism comprises a contraction cavity, a reset spring, a sliding plate, a fixed head and a fixed hole, the outer side wall of the mounting plate is symmetrically provided with the contraction cavity, the middle part of the mutually close side of the contraction cavity of the left and right parts is fixedly connected with the reset spring, the other end of the reset spring is fixedly connected with the sliding plate, the middle part of the mutually far side of the sliding plate of the left and right parts is fixedly connected with the fixed head, and the outer side wall of the chuck body is symmetrically provided with the fixed hole.

[0014] As a further description of the above technical solution:

[0015] The sliding plate is in sliding connection in the inside of the contraction cavity, and the outer side wall of the sliding plate is attached to the inner side wall of the contraction cavity, and the end part of the fixed head is provided with a hemispherical surface.

[0016] Compared with the prior art, the walk heart machine spindle chuck positioning structure has the following beneficial effects:

[0017] The walk heart machine spindle chuck positioning structure is characterized in that the mounting plate is installed in the inside of the chuck body through the setting of the mounting plate and the positioning mechanism, the threaded rod is rotated by rotating the knob through the screwdriver, the limiting rod limits the connecting plate, and then the positioning cylinder is limited, the positioning cylinder is moved when the threaded rod rotates, so that the position of the positioning cylinder is adjusted, the distance of the workpiece placed outside the chuck is adjusted according to the need, the workpiece is positioned, the position is prevented from overtraveling, and the machining precision of the workpiece is prevented from being affected.

[0018] The walk heart machine spindle chuck positioning structure is characterized in that the mounting plate is installed in the inside of the chuck body through the setting of the positioning groove, the positioning block and the connecting mechanism, the fixed head is contracted in the inside of the contraction cavity by extruding the fixed head, the positioning block is embedded in the positioning groove by extruding the reset spring through the sliding plate, the mounting plate is located in the inside of the chuck body, the mounting plate is pushed, the fixed head is embedded in the fixed hole through the reset of the reset spring when the fixed head is aligned with the fixed hole, installation is completed, installation is more simple and convenient, time is saved, and the device is convenient to disassemble, the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The walk heart machine spindle chuck positioning structure is characterized in that the mounting plate is installed in the inside of the chuck body through the setting of the positioning groove, the positioning block and the connecting mechanism, the fixed head is contracted in the inside of the contraction cavity by extruding the fixed head, the positioning block is embedded in the positioning groove by extruding the reset spring through the sliding plate, the mounting plate is located in the inside of the chuck body, the mounting plate is pushed, the fixed head is embedded in the fixed hole through the reset of the reset spring when the fixed head is aligned with the fixed hole, installation is completed, installation is more simple and convenient, time is saved, and the device is convenient to disassemble, the practicability of the device is improved.

[0020] Figure 2 The utility model provides a kind of positioning slot opening structure schematic diagram of walk center machine main shaft chuck positioning structure is proposed by the utility model;

[0021] Figure 3 The utility model provides a kind of thread rod installation structure schematic diagram of walk center machine main shaft chuck positioning structure is proposed by the utility model;

[0022] Figure 4 The utility model provides a kind of reset spring installation structure schematic diagram of walk center machine main shaft chuck positioning structure is proposed by the utility model.

[0023] In the drawing: 100, chuck body;200, positioning slot;210, positioning block;220, shrinkage cavity;230, reset spring;240, sliding plate;250, fixed head;260, fixed hole;300, mounting plate;310, threaded rod;320, knob;330, positioning cylinder;340, connecting plate;350, limit rod;360, cross slot. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the features limited as "first", "second" can be explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0026] In the description of the utility model, it is to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For the ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0027] The utility model provides a kind of heart machine main shaft chuck positioning structure, it is convenient to adjust the distance of workpiece to be placed in the outside of chuck according to needs, position workpiece, avoid position overtravel, prevent affecting the machining accuracy of workpiece, please refer to Figures 1-4 Including chuck body 100;

[0028] Please refer to Figure 2 The inside wall rear portion of chuck body 100 is symmetrically provided with positioning slot 200, and the inside of chuck body 100 is slidably connected with mounting plate 300, and the inside of mounting plate 300 is provided with positioning mechanism;

[0029] Please refer to Figure 2 The outer side wall of mounting plate 300 is symmetrically fixedly connected with positioning block 210, and positioning block 210 is slidably connected in the inside of positioning slot 200, and the outside of mounting plate 300 is provided with connecting mechanism;

[0030] Please refer to Figure 3 Positioning mechanism includes threaded rod 310, knob 320, positioning cylinder 330, connecting plate 340, limit rod 350 and cross slot 360;

[0031] Please refer to Figure 3 The front side middle part of mounting plate 300 is rotatably connected with threaded rod 310 in penetration, the rear end of threaded rod 310 is fixedly connected with knob 320, and the outer side wall of threaded rod 310 is symmetrically screwed with positioning cylinder 330 by screw thread;

[0032] Please refer to Figure 3 The outer side wall rear portion of positioning cylinder 330 is symmetrically fixedly connected with connecting plate 340, the rear side of connecting plate 340 is fixedly connected with limit rod 350, and the back of knob 320 is provided with cross slot 360.

[0033] In summary, by using the mounting plate 300 and the positioning mechanism, the mounting plate 300 is installed inside the chuck body 100. By turning the knob 320 with a screwdriver, the threaded rod 310 is rotated. The limiting rod 350 limits the connecting plate 340, which in turn limits the positioning cylinder 330. When the threaded rod 310 rotates, the positioning cylinder 330 moves, thereby adjusting the position of the positioning cylinder 330. This allows for easy adjustment of the distance the workpiece is placed outside the chuck as needed, positioning the workpiece, preventing overtravel, and avoiding affecting the machining accuracy of the workpiece.

[0034] Please refer to it again. Figure 3 A thrust ring is fixedly connected to the front part of the outer side wall of the threaded rod 310, and the anti-reverse ring is located on the front side of the mounting plate 300.

[0035] Please refer to it again. Figure 3 The limiting rod 350 passes through the rear side of the mounting plate 300, and the limiting rod 350 is slidably connected to the mounting plate 300. A baffle is fixedly connected to the rear end of the limiting rod 350.

[0036] Please refer to it again. Figure 4 The connecting mechanism includes a contraction cavity 220, a return spring 230, a slide plate 240, a fixing head 250, and a fixing hole 260. The outer side wall of the mounting plate 300 is symmetrically provided with contraction cavities 220. The middle part of the close side of the left and right contraction cavities 220 is fixedly connected to the return spring 230. The other end of the return spring 230 is fixedly connected to the slide plate 240. The middle part of the far side of the left and right slide plates 240 is fixedly connected to the fixing head 250. The outer side wall of the clamp body 100 is symmetrically provided with fixing holes 260.

[0037] Please refer to it again. Figure 4 The slide plate 240 is slidably connected to the inside of the contraction cavity 220, and the outer side wall of the slide plate 240 is in contact with the inner side wall of the contraction cavity 220. The end of the fixing head 250 is provided with a hemispherical surface.

[0038] In summary, by utilizing the positioning groove 200, positioning block 210, and connecting mechanism, the fixing head 250 is compressed and retracted into the contraction cavity 220. This causes the sliding plate 240 to compress the return spring 230, embedding the positioning block 210 into the positioning groove 200. This positions the mounting plate 300 inside the clamp body 100. When the fixing head 250 aligns with the fixing hole 260, the return spring 230 resets the fixing head 250, completing the installation. This makes installation simpler and more convenient, saving time and facilitating disassembly, thus enhancing the practicality of the device.

[0039] In practical use, those skilled in the art first install the positioning mechanism by squeezing the fixing head 250, causing it to retract into the shrinkage cavity 220, and the sliding plate 240 to squeeze the return spring 230, embedding the positioning block 210 into the positioning groove 200, so that the mounting plate 300 is located inside the chuck body 100. Push the mounting plate 300, and when the fixing head 250 is aligned with the fixing hole 260, the return spring 230 resets the fixing head 250 into the fixing hole 260, completing the installation. Then, turn the knob 320 with a screwdriver to drive the threaded rod 310 to rotate, using the limit rod 350 to limit the connecting plate 340, thereby limiting the positioning cylinder 330. When the threaded rod 310 rotates, the positioning cylinder 330 moves, thereby adjusting the position of the positioning cylinder 330 and adjusting the distance of the workpiece outside the chuck body 100. After completing the adjustment and positioning, install the chuck body 100 on the spindle of the Swiss-type machine.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A positioning structure for the spindle chuck of a Swiss-type lathe, characterized in that: The chuck body (100) includes a chuck body (100), and the rear of the inner side wall of the chuck body (100) is symmetrically provided with positioning grooves (200). The chuck body (100) is slidably connected to the interior of the chuck body (100), and the interior of the mounting plate (300) is provided with a positioning mechanism. The mounting plate (300) has a positioning block (210) symmetrically fixedly connected to its outer side wall, and the positioning block (210) is slidably connected to the inside of the positioning groove (200). A connecting mechanism is provided on the outer side of the mounting plate (300). The positioning mechanism includes a threaded rod (310), a knob (320), a positioning cylinder (330), a connecting plate (340), a limiting rod (350), and a cross groove (360). The threaded rod (310) is rotatably connected through the front middle of the mounting plate (300). The knob (320) is fixedly connected to the rear end of the threaded rod (310). The positioning cylinder (330) is symmetrically threaded to the outer side wall of the threaded rod (310). The connecting plate (340) is symmetrically fixedly connected to the rear side of the outer side wall of the positioning cylinder (330). The limiting rod (350) is fixedly connected to the rear side of the connecting plate (340). The cross groove (360) is provided on the back of the knob (320).

2. The positioning structure for the spindle chuck of a Swiss-type lathe according to claim 1, characterized in that: A thrust ring is fixedly connected to the front part of the outer side wall of the threaded rod (310), and the anti-reverse ring is located on the front side of the mounting plate (300).

3. The positioning structure for the spindle chuck of a Swiss-type lathe according to claim 1, characterized in that: The limiting rod (350) passes through the rear side of the mounting plate (300), and the limiting rod (350) is slidably connected to the mounting plate (300), and a baffle is fixedly connected to the rear end of the limiting rod (350).

4. The positioning structure for the spindle chuck of a Swiss-type lathe according to claim 1, characterized in that: The connecting mechanism includes a contraction cavity (220), a return spring (230), a sliding plate (240), a fixing head (250), and a fixing hole (260). The outer side wall of the mounting plate (300) is symmetrically provided with contraction cavities (220). The middle part of the contraction cavities (220) on the left and right sides that are close to each other is fixedly connected with a return spring (230). The other end of the return spring (230) is fixedly connected with a sliding plate (240). The middle part of the sliding plates (240) on the left and right sides that are far apart from each other is fixedly connected with a fixing head (250). The outer side wall of the clamp body (100) is symmetrically provided with fixing holes (260).

5. The positioning structure for the spindle chuck of a Swiss-type lathe according to claim 4, characterized in that: The sliding plate (240) is slidably connected to the inside of the contraction cavity (220), and the outer side wall of the sliding plate (240) is in contact with the inner side wall of the contraction cavity (220). The end of the fixing head (250) is provided with a hemispherical surface.

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