Automatic lathe guide sleeve device with good centering effect

Abstract

The utility model provides a guide sleeve device of a precision automatic lathe with a good centering effect, and relates to the technical field of precision automatic lathes. The guide sleeve is connected with the sleeve seat in a sleeving manner; one end of the guide sleeve is positioned outside the sleeve seat; the guide sleeve can axially move along the sleeve seat, and the sleeve seat can drive the guide sleeve to rotate; a plurality of strip-shaped grooves extending in the length direction of the guide sleeve are formed in the side wall of the guide sleeve. The sliding sleeve is arranged on the outer side of the guide sleeve in a sliding and sleeving manner; the adjusting ring sleeves the sliding sleeve and is in threaded connection with the sliding sleeve; the connecting assembly is used for connecting the chuck and the adjusting ring; the chuck is movably arranged in the radial direction of the sliding sleeve; the chuck penetrates through the strip-shaped groove and can slide along the strip-shaped groove; the multiple chucks are arranged in the circumferential direction of the sliding sleeve. And the anti-loosening assembly is used for limiting the relative movement of the adjusting ring and the sliding sleeve after the adjusting ring is moved. All the chucks can be moved at the same time, the operation of clamping or loosening a workpiece is simplified, and the centering effect can be guaranteed. And the anti-loosening assembly can enable the chuck to be in contact with the workpiece, and the centering effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heart machine technical field especially a kind of heart machine guide sleeve device with good centering effect. BACKGROUND

[0002] Heart type numerical control lathe, referred to as heart machine, also called spindle box mobile numerical control lathe, is a kind of machine tool with high precision, high efficiency and high automation degree, mainly used for processing bar small parts.Heart machine is usually adjusted after tool position during processing, so that tool is always in fixed position during processing, and product is processed by moving forward and backward of main shaft Z axis and driving product rotation.

[0003] The patent literature with application No.202322921335.4 uses multiple positioning screws in a circular array to clamp the workpiece, providing good centering effect for workpieces of different diameters, and avoiding workpiece damage caused by vibration during processing.

[0004] However, the above-mentioned scheme has the following defects:

[0005] 1. Each positioning screw needs to be twisted to approach or move away from the workpiece to clamp or release the workpiece, which is slightly cumbersome. In addition, if the movement of each positioning screw is not synchronized during clamping of the workpiece, the centering effect of the workpiece may not be ideal.

[0006] 2. The positioning screw is connected by threads, and is affected by vibration during processing, so that it cannot maintain contact with the surface of the workpiece to play a role after loosening. UTILITY MODEL CONTENTS

[0007] In view of the above situation, the utility model provides a heart machine guide sleeve device with good centering effect, aiming to solve at least one of the defects pointed out in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] The utility model provides a heart machine guide sleeve device with good centering effect, comprising:

[0010] a sleeve seat;

[0011] a guide sleeve, which is connected to the sleeve seat; one end of the guide sleeve is located outside the sleeve seat; the guide sleeve can move axially along the sleeve seat, and the sleeve seat can drive the guide sleeve to rotate; a plurality of strip-shaped grooves are formed on the side wall of the guide sleeve in the length direction;

[0012] a sliding sleeve, which is slidably sleeved on the outside of the guide sleeve;

[0013] an adjusting ring, which is sleeved on the sliding sleeve and threadedly connected with the sliding sleeve;

[0014] A connecting assembly for connecting the collet and the adjusting ring;

[0015] The collet is arranged along the radial direction of the sleeve and is capable of sliding along the strip-shaped slot; a plurality of collets are arranged along the circumferential direction of the sleeve;

[0016] A loosening prevention assembly for limiting the relative movement between the adjusting ring and the sleeve after the adjusting ring is moved.

[0017] In some embodiments of the present application, the loosening prevention assembly comprises:

[0018] The fixed plate is fixedly arranged on the outer side of the sleeve at one end and extends along the radial direction of the sleeve at the other end;

[0019] The first limiting screw is in threaded connection with the fixed plate, and one end of the first limiting screw is in contact with the right end surface of the adjusting ring.

[0020] In some embodiments of the present application, the loosening prevention assembly comprises:

[0021] The extension plate is fixedly arranged on the adjusting ring at one end and extends along the axial direction of the sleeve at the other end;

[0022] The second limiting screw is in threaded connection with the extension plate, and one end of the second limiting screw is in contact with the outer wall of the sleeve.

[0023] In some embodiments of the present application, one end of the second limiting screw is bonded with an anti-skid block.

[0024] In some embodiments of the present application, the connecting assembly comprises:

[0025] The connecting block is in sliding connection with the adjusting ring at one side;

[0026] The connecting link is hingedly connected with the connecting block at one end and is hingedly connected with the collet at the other end.

[0027] In some embodiments of the present application, one side of the connecting block has a T-shaped portion, and the T-shaped portion is in sliding connection with the adjusting ring.

[0028] In some embodiments of the present application, the inner side of the sleeve seat has a plurality of guide grooves;

[0029] The outer wall of the guide sleeve has a protrusion, and the protrusion is in sliding connection with the guide groove.

[0030] In some embodiments of the present application, the guide groove has six guide grooves.

[0031] In some embodiments of the present application, the guide sleeve has a positioning portion, the positioning portion is located in the sleeve seat, and the inner side of the positioning portion is tapered.

[0032] In some embodiments of the utility model, the sleeve has a jack, and the chuck is inserted into the jack.

[0033] The utility model discloses at least has following advantages or beneficial effects:

[0034] I. Through the setting of the sleeve, the adjusting ring and the connecting assembly, each chuck can be moved simultaneously, the operation of clamping or loosening the workpiece is simplified, and the centering effect can be guaranteed.

[0035] II. After the anti-loosening assembly moves the adjusting ring, the relative movement of the adjusting ring and the sleeve is limited, the chuck can keep in contact with the workpiece, and the chuck can continuously play the role of clamping and centering, and the centering effect is good.

[0036] Other features and advantages of the utility model will be described in the subsequent specification, and some of them become obvious from the specification, or are understood by implementing the utility model. DRAWINGS

[0037] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description can be used to obtain other drawings without creative labor for those skilled in the art.

[0038] Figure 1 The structure schematic view of the external part of the centering effect good centering machine guide sleeve device;

[0039] Figure 2 The structure schematic view of the internal part of the centering effect good centering machine guide sleeve device;

[0040] Figure 3 For Figure 2 The local enlarged view of A position in the middle.

[0041] Figure 4 The structure schematic view of the extension plate.

[0042] Figure:

[0043] 1- support, 2- sleeve seat, 21- guide groove, 3- guide sleeve, 31- positioning part, 32- protruding block, 33- strip-shaped groove, 4- sleeve, 41- jack, 5- adjusting ring, 6- chuck, 7- connecting assembly, 71- connecting block, 711- T-shaped part, 72- connecting rod,

[0044] 81- fixed plate, 82- first limiting screw,

[0045] 91- extension plate, 92- second limiting screw. DETAILED DESCRIPTION

[0046] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application.

[0047] In the description of the embodiments of the present application, it is to be understood that the terms "length", "upper", "right", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting the embodiments of the present application.

[0048] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0049] The meaning of "several" is one or more, unless otherwise explicitly specified.

[0050] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] The embodiments of the present application will be described in detail below.

[0052] Embodiment 1

[0053] Referring to Figures 1-3 The present embodiment provides a centering effect good core machine guide sleeve device, which comprises a bracket 1, a sleeve seat 2, a guide sleeve 3, a sliding sleeve 4, an adjusting ring 5, a chuck 6, a connecting assembly 7 and an anti-loose assembly.

[0054] The bracket 1 has a through hole.

[0055] The outer wall of the sleeve seat 2 is rotatably connected with the inner wall of the through hole, and the inner side of the sleeve seat 2 has a plurality of (such as six) guide grooves 21.

[0056] The guide sleeve 3 is sleeved with the sleeve seat 2, one end of the guide sleeve 3 is located outside the sleeve seat 2, the other end has a positioning part 31, the positioning part 31 is located inside the sleeve seat 2, the inner side of the positioning part 31 is tapered. The outer wall of the guide sleeve 3 has a protrusion 32, the protrusion 32 is in sliding connection with the guide groove 21. The side wall of the guide sleeve 3 is provided with a plurality of strip-shaped grooves 33 extending along the length direction thereof.

[0057] The sliding sleeve 4 is slidably sleeved outside the guide sleeve 3, the sliding sleeve 4 has a insertion hole 41. The outer wall of the sliding sleeve 4 has external threads.

[0058] The adjusting ring 5 is sleeved with the sliding sleeve 4 and has internal threads matched with the external threads, the adjusting ring 5 is in threaded connection with the sliding sleeve 4.

[0059] The chuck 6 is inserted with the insertion hole 41, the chuck 6 is movably arranged along the radial direction of the sliding sleeve 4; the chuck 6 penetrates through the strip-shaped grooves 33 and can slide along the strip-shaped grooves 33. The chuck 6 has a plurality (such as three), the plurality of chucks 6 are arranged along the circumferential direction of the sliding sleeve 4 and are equidistantly arranged.

[0060] The connecting assembly 7 is used for connecting the chuck 6 and the adjusting ring 5.

[0061] The anti-loosening assembly is used for limiting the relative movement between the adjusting ring 5 and the sliding sleeve 4 after the adjusting ring 5 is moved.

[0062] When the adjusting ring 5 moves relative to the sliding sleeve 4, the connecting assembly 7 moves the chuck 6 along the radial direction of the sliding sleeve 4, the plurality of chucks 6 simultaneously move close to or away from each other, so as to facilitate clamping or loosening the workpiece penetrating through the guide sleeve 3 and can ensure the centering effect;

[0063] Considering that the threaded connection between the adjusting ring 5 and the sliding sleeve 4 is easily loosened by vibration during machining, when loosening occurs, the adjusting ring 5 moves relative to the sliding sleeve 4 to move the chuck 6, causing the chuck 6 to separate from the workpiece. In order to enable the chuck 6 to maintain contact with the workpiece during machining, the anti-loosening assembly is arranged; the anti-loosening assembly limits the relative movement between the adjusting ring 5 and the sliding sleeve 4 after the adjusting ring 5 is moved, so as to enable the chuck 6 to maintain contact with the workpiece, the chuck 6 can continuously play its clamping and centering role, and the centering effect is good;

[0064] In addition, similar to the prior art, in the above scheme, since the sliding sleeve 4 is slidably sleeved outside the guide sleeve 3, the chuck 6 is inserted with the insertion hole 41 and can slide along the strip-shaped grooves 33, so that during the axial adjustment of the position of the workpiece in the machining process, the workpiece can drive the chuck 6 and the sliding sleeve 4 to move together (left and right movement), avoiding damage to the surface of the workpiece due to the relative movement between the workpiece and the chuck 6.

[0065] The connecting assembly 7 comprises a connecting block 71 and connecting rods 72. The connecting block 71 has a T-shaped portion 711 on one side, which is in sliding connection with the adjusting ring 5. One end of each connecting rod 72 is hingedly connected to the connecting block 71, and the other end is hingedly connected to the collet 6.

[0066] When the adjusting ring 5 is turned to move left, each collet 6 is driven by the connecting rod 72 to clamp the workpiece. When the adjusting ring 5 is turned in the opposite direction to move right, each collet 6 is driven by the connecting rod 72 to release the workpiece.

[0067] In combination with the above, the present embodiment has at least the following beneficial effects:

[0068] I. By providing the sliding sleeve 4, the adjusting ring 5, and the connecting assembly 7, each collet 6 can be moved simultaneously, simplifying the operation of clamping or releasing the workpiece and ensuring the centering effect.

[0069] II. After the anti-loosening assembly moves the adjusting ring 5, it limits the relative movement of the adjusting ring 5 and the sliding sleeve 4, allowing the collet 6 to maintain contact with the workpiece, so that the collet 6 can continuously exert its clamping and centering effect, achieving good centering effect.

[0070] III. During the axial adjustment of the position of the workpiece during processing, the workpiece can move the collet 6 and the sliding sleeve 4 together, avoiding damage to the surface of the workpiece due to relative movement between the workpiece and the collet 6.

[0071] IV. By sliding the protrusion 32 with the guide groove 21, the sleeve 3 can be moved axially along the sleeve seat 2 while allowing the sleeve seat 2 to rotate the guide sleeve 3.

[0072] V. The inner side of the positioning portion 31 is tapered, and one end of the workpiece can abut the inner side of the positioning portion 31, which can achieve better centering effect on the workpiece.

[0073] Embodiment 2

[0074] Referring to Figures 1-3 In this embodiment, the anti-loosening assembly comprises a fixed plate 81 and a first limiting screw 82.

[0075] One end of the fixed plate 81 is fixedly arranged on the outer side of the sliding sleeve 4, and the other end extends along the radial direction of the sliding sleeve 4.

[0076] The first limiting screw 82 is in threaded connection with the fixed plate 81, and one end of the first limiting screw 82 is in contact with the right side end surface of the adjusting ring 5.

[0077] After the adjusting ring 5 is turned to clamp the workpiece by the collet 6, the first limiting screw 82 is tightened, so that the first limiting screw 82 is in contact with the right side end surface of the adjusting ring 5 through the first anti-slip block, thereby limiting the movement of the adjusting ring 5 to the right. In this way, the connecting rod 72 will not drive the collet 6 to disengage from the workpiece.

[0078] Embodiment 3

[0079] This embodiment is another implementation of Embodiment 2.

[0080] Referring to Figures 1-4 In this embodiment, the anti-loose assembly comprises an extension plate 91 and a second limiting screw 92.

[0081] One end of the extension plate 91 is fixedly arranged on the adjusting ring 5, and the other end extends along the axial direction of the sliding sleeve 4.

[0082] The second limiting screw 92 is threadedly connected with the extension plate 91, and one end of the second limiting screw 92 is in contact with the outer wall of the sliding sleeve 4.

[0083] After the adjusting ring 5 is screwed to clamp the workpiece by the chuck 6, the second limiting screw 92 is tightened to make the second limiting screw 92 in contact with the outer wall of the sliding sleeve 4, thereby limiting the rotation and rightward movement of the adjusting ring 5, so that the connecting rod 72 cannot drive the chuck 6 to be separated from the workpiece.

[0084] Further, one end of the second limiting screw 92 is bonded with an anti-skid block (not shown in the figure) to increase the friction between the second limiting screw 92 and the sliding sleeve 4, thereby improving the limiting and anti-loose effect.

[0085] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and changes, and in the case of no conflict, the embodiments of the application and the features in the embodiments can be combined with each other. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A guide sleeve device for a Swiss-type machine with good centering effect, characterized in that, include: set of seats; A guide sleeve is fitted onto the sleeve base; one end of the guide sleeve is located outside the sleeve base; the guide sleeve can move axially along the sleeve base, and the sleeve base can drive the guide sleeve to rotate; multiple strip-shaped grooves extending along the length direction are provided on the side wall of the guide sleeve. A sliding sleeve is slidably fitted onto the outside of the guide sleeve; An adjusting ring is fitted onto the sliding sleeve and threadedly connected to the sliding sleeve. A connecting assembly for connecting the clamp and the adjusting ring; A chuck is radially movably disposed along the sliding sleeve; the chuck passes through the slot and is slidable along the slot; The plurality of said chucks are arranged circumferentially along the sliding sleeve; Anti-loosening components are used to limit the relative movement of the adjusting ring and the sliding sleeve after the adjusting ring has been moved.

2. The centering effect guide sleeve device for a Swiss-type machine according to claim 1, characterized in that, The anti-loosening component includes: A fixing plate is fixed at one end on the outer side of the sliding sleeve and extends radially along the sliding sleeve at the other end. The first limiting screw is threadedly connected to the fixing plate, and one end of the first limiting screw is in contact with the right end face of the adjusting ring.

3. The centering effect guide sleeve device for a Swiss-type machine according to claim 1, characterized in that, The anti-loosening component includes: An extension plate, one end of which is fixedly mounted on the adjusting ring, and the other end of which extends axially along the sliding sleeve; The second limiting screw is threadedly connected to the extension plate, and one end of the second limiting screw contacts the outer wall of the sliding sleeve.

4. The centering effect guide sleeve device for a Swiss-type machine according to claim 3, characterized in that, One end of the second limiting screw is glued with an anti-slip block.

5. The guide sleeve device for a Swiss-type lathe according to any one of claims 1 to 4, characterized in that, The connection component includes: A connecting block, one side of which is slidably connected to the adjusting ring; The connecting rod is hinged at one end to the connecting block and at the other end to the clamp.

6. The guide sleeve device for a Swiss-type lathe according to claim 5, characterized in that, One side of the connecting block has a T-shaped portion, which is slidably connected to the adjusting ring.

7. The guide sleeve device for a Swiss-type lathe according to claim 1, characterized in that, The inner side of the sleeve has several guide grooves; The outer wall of the guide sleeve has a protrusion, which is slidably connected to the guide groove.

8. The guide sleeve device for a Swiss-type lathe according to claim 7, characterized in that, There are six guide grooves.

9. The guide sleeve device for a Swiss-type lathe according to claim 1, characterized in that, The guide sleeve has a positioning part located inside the sleeve base, and the inner side of the positioning part is tapered.

10. The guide sleeve device for a Swiss-type lathe according to claim 1, characterized in that, The sliding sleeve has a socket, and the clamp is inserted into the socket.

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