Conveniently usable chuck positioner

Abstract

The utility model discloses a chuck positioner convenient to use, including the axle sleeve, the outer wall right side of axle sleeve is provided with the fixed plate, the inside installation of axle sleeve has the adjusting mechanism, the adjusting mechanism is used for adjusting axial positioning, the inside installation of fixed plate has the fixed mechanism, the fixed mechanism is used for with axle sleeve and fixed plate fixed, the adjusting mechanism includes axial positioning block, axial positioning block sets up in the inside of axle sleeve, the outer wall fixed connection of axial positioning block has the sliding block, the inner wall of axle sleeve is opened and is limited to the slot, and the limit slot is slidably connected with the sliding block. In the utility model, when adjusting axial positioning, rotating threaded rod is fixed in the installation groove of axle sleeve through bearing, and is matched with axial positioning block screw groove, converts rotary motion into linear motion, at the same time, the sliding block outside axial positioning block slides along the limit slot of axle sleeve inner wall, changes chuck positioner positioning adjustment mode.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool equipment technology, and in particular to a convenient chuck positioner. Background Technology

[0002] A chuck positioner is an auxiliary device that is directly installed on the machine tool chuck. Before machining shaft parts, the axial position of the part can be quickly determined by simply aligning the part with the preset reference of the positioner. There is no need for repeated manual measurement and adjustment. It can not only stably control the axial clamping deviation and ensure the machining accuracy of turning and milling processes from the source, but also reduce clamping time and make the part position more uniform during batch processing.

[0003] A search revealed Chinese patent publication number CN209736663U, which discloses an axial positioner for a lathe three-jaw chuck. The positioner includes a positioner body with an adjusting column coaxially mounted on one side. The adjusting column has a T-shaped cross-section. A mounting tube is coaxially fixedly connected to the side of the positioner body near the adjusting column. One end of the adjusting column extends into the mounting tube, and the radius of the adjusting column inside the mounting tube is equal to the inner diameter of the mounting tube. This design ensures accurate positioning and can position parts with an axial outer diameter of 20mm-105mm. To meet usage requirements, an adjusting column is designed and manufactured to adjust the clamping dimensions. By replacing adjusting columns of different lengths, clamping dimensions can be met, eliminating the need for individual measurement and adjustment during machining, greatly improving production efficiency. However, the screw and nut positioning structure is prone to loosening under machine tool vibration, often requiring frequent adjustments and calibrations. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a convenient chuck positioner, which aims to improve the positioning structure of the screw and nut structure in the prior art. When the machine tool bed is vibrating, the positioning is prone to loosening, which often requires frequent adjustment and calibration.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a convenient chuck positioner, including a bushing, a fixing plate provided on the right side of the outer wall of the bushing, an adjustment mechanism installed inside the bushing for adjusting axial positioning, and a fixing mechanism installed inside the fixing plate for fixing the bushing and the fixing plate. The adjustment mechanism includes an axial positioning block, which is disposed inside the bushing. A slider is fixedly connected to the outer wall of the axial positioning block. A limit groove is formed on the inner wall of the bushing, and the limit groove is slidably connected to the slider. A drive assembly is disposed inside the bushing.

[0006] Through the above technical solution: the fixing mechanism inside the fixing plate fixes the bushing to the fixing plate as a whole, ensuring the stability of the positioner body, and the slider outside the axial positioning block slides along the limiting groove on the inner wall of the bushing.

[0007] As a further description of the above technical solution: The drive assembly includes a threaded rod, which is rotatably connected to the left end of the outer wall of the bushing. A bearing is fixedly connected to the left side of the outer wall of the threaded rod. An installation groove is provided on the left side of the inner wall of the bushing. A threaded groove is provided on the left side of the outer wall of the axial positioning block. The threaded groove is threadedly connected to the threaded rod.

[0008] The above technical solution involves rotating the threaded rod, which is fixed in the mounting groove of the bushing by a bearing. The threaded rod engages with the threaded groove of the axial positioning block, converting the rotational motion into the linear motion of the axial positioning block.

[0009] As a further description of the above technical solution: The fixing mechanism includes a positioning ring, which is fixedly connected to the right end of the outer wall of the bushing. A positioning groove is provided on the left side of the outer wall of the fixing plate, and the positioning ring engages with the positioning groove. A fixing component is installed inside the fixing plate.

[0010] Through the above technical solution: the locating ring of the bushing is inserted into the locating groove of the fixing plate, and the initial fixation is completed.

[0011] As a further description of the above technical solution: The fixing component includes a bolt, which is disposed on the outer wall of the fixing plate. The outer wall of the fixing plate has multiple circular grooves at equal intervals. The bolt is rotatably connected to the circular grooves. The inner wall of the circular grooves has a locking block. The outer wall of the bolt is threadedly connected to the locking block. The locking block is slidably connected to the square groove. The outer wall of the positioning ring has multiple locking slots at equal intervals. The locking block engages with the locking slots.

[0012] The above technical solution involves the bolt rotating within the circular groove, which in turn causes the locking block to slide within the square groove. This allows the locking block to gradually approach the positioning ring and eventually engage with the corresponding slot on its outer wall. Multiple bolts simultaneously drive the locking block.

[0013] As a further description of the above technical solution: The threaded rod passes through the left side of the outer wall of the bushing, and the bearing is fixedly connected to the inner wall of the mounting groove.

[0014] Through the above technical solution: one end of the threaded rod is exposed to facilitate force application and rotation, while the other end is inserted into the bushing and engages with the threaded groove of the axial positioning block. The bearing can restrict the axial movement of the threaded rod, so that the threaded rod can only rotate stably around its own axis.

[0015] As a further description of the above technical solution: The bolts are evenly distributed around the fixing plate, and the ends of the bolts are rotatably connected to the inner wall of the square groove.

[0016] The above technical solution allows the equidistant distribution of multiple bolts to form a uniform circumferential force on the connection point between the fixing plate and the bushing, avoiding loosening of the connection or deformation of the component caused by excessive local force, and can stably convert the rotational movement of the bolts into the linear sliding of the locking block along the square groove.

[0017] As a further description of the above technical solution: An adjustment knob is provided on the left side of the outer wall of the bushing, and the adjustment knob is fixedly connected to the left side of the outer wall of the threaded rod.

[0018] The above technical solution increases the contact area for hand application, enabling it to quickly drive the axial positioning block to move.

[0019] As a further description of the above technical solution: The fixing plate is triangular in shape, and multiple mounting holes are equidistantly provided on the outer wall of the fixing plate.

[0020] Through the above technical solution, the triangular structure of the fixing plate has greater mechanical stability than that of circles and squares, which can distribute the force on the positioner during operation, reduce the risk of deformation, and the mounting holes can be adapted to fasteners of different specifications, making it easy to accurately connect and fix the fixing plate to the external chuck. At the same time, it is compatible with chuck mounting positions of different sizes, improving the versatility of the positioner.

[0021] This utility model has the following beneficial effects: 1. In this utility model, when adjusting the axial positioning, the threaded rod is rotated, and it is fixed in the mounting groove of the bushing by the bearing. It cooperates with the threaded groove of the axial positioning block to convert the rotational motion into linear motion. At the same time, the slider outside the axial positioning block slides along the limiting groove of the inner wall of the bushing, changing the positioning adjustment mode of the chuck positioner. The threaded rod drives the bushing, and the bushing is not easy to move axially when it is impacted.

[0022] 2. In this utility model, the positioning ring of the bushing is first inserted into the positioning groove of the fixing plate to complete the initial fixing; then the bolt is rotated to make it rotate in the circular groove, and the bolt drives the locking block to slide in the square groove, so that the locking block is close to the positioning ring and inserted into its outer wall locking groove, and the locking block is driven synchronously by multiple bolts. Attached Figure Description

[0023] Figure 1 This is a front view of the convenient chuck positioner proposed in this utility model; Figure 2 A perspective view of the convenient chuck positioner proposed in this utility model; Figure 3This is an exploded view of the structure of the convenient chuck positioner proposed in this utility model; Figure 4 This is a partial structural cross-sectional view of the convenient chuck positioner proposed in this utility model; Figure 5 This is a partial structural exploded view of the convenient chuck positioner proposed in this utility model.

[0024] Legend: 1. Bushing; 2. Fixing plate; 3. Adjusting mechanism; 301. Axial positioning block; 302. Slider; 303. Limiting groove; 304. Drive assembly; 3041. Threaded rod; 3042. Bearing; 3043. Mounting groove; 3044. Threaded groove; 4. Fixing mechanism; 401. Positioning ring; 402. Positioning groove; 403. Fixing assembly; 4031. Bolt; 4032. Round groove; 4033. Clamping block; 4034. Square groove; 4035. Clamping slot; 5. Adjusting knob; 6. Mounting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 2 , Figure 3 and Figure 4 The present invention provides an embodiment of a convenient chuck positioner, including a bushing 1, a fixing plate 2 provided on the right side of the outer wall of the bushing 1, an adjustment mechanism 3 installed inside the bushing 1, the adjustment mechanism 3 being used for axial positioning adjustment, and a fixing mechanism 4 installed inside the fixing plate 2, the fixing mechanism 4 being used for fixing the bushing 1 and the fixing plate 2. The adjustment mechanism 3 includes an axial positioning block 301, which is disposed inside the bushing 1. A slider 302 is fixedly connected to the outer wall of the axial positioning block 301. A limit groove 303 is opened on the inner wall of the bushing 1. The limit groove 303 is slidably connected to the slider 302. A drive assembly 304 is disposed inside the bushing 1. The drive assembly 304 includes a threaded rod 3041, which is rotatably connected to the left end of the outer wall of the bushing 1. A bearing 3042 is fixedly connected to the left side of the outer wall of the threaded rod 3041. An installation groove 3043 is provided on the left side of the inner wall of the bushing 1. A threaded groove 3044 is provided on the left side of the outer wall of the axial positioning block 301. The threaded groove 3044 is threadedly connected to the threaded rod 3041. The threaded rod 3041 passes through the left side of the outer wall of the bushing 1. The bearing 3042 is fixedly connected to the inner wall of the installation groove 3043. Specifically, during axial positioning adjustment, the threaded rod 3041 is rotated. The threaded rod 3041 is fixed in the mounting groove 3043 of the bushing 1 by means of the bearing 3042. It forms a threaded engagement with the threaded groove 3044 of the axial positioning block 301, which can convert the rotational motion into the linear motion of the axial positioning block 301. At the same time, the slider 302 outside the axial positioning block 301 slides along the limiting groove 303 on the inner wall of the bushing 1, thereby changing the positioning adjustment method of the chuck positioner. The bushing 1 is driven by the threaded rod 3041, so even if the bushing 1 is impacted, it is not easy to move axially.

[0027] Reference Figure 2 , Figure 3 and Figure 5 The fixing mechanism 4 includes a positioning ring 401, which is fixedly connected to the right end of the outer wall of the bushing 1. A positioning groove 402 is provided on the left side of the outer wall of the fixing plate 2. The positioning ring 401 is engaged with the positioning groove 402. A fixing component 403 is installed inside the fixing plate 2. The fixing component 403 includes bolts 4031, which are disposed on the outer wall of the fixing plate 2. The outer wall of the fixing plate 2 has multiple circular grooves 4032 equidistantly provided. The bolts 4031 are rotatably connected to the circular grooves 4032. The inner wall of the circular grooves 4032 is provided with a locking block 4033. The outer wall of the bolts 4031 is threadedly connected to the locking block 4033. The locking block 4033 is slidably connected to the square groove 4034. The outer wall of the positioning ring 401 has multiple locking slots 4035 equidistantly provided. The locking block 4033 engages with the locking slots 4035. The bolts 4031 are equidistantly distributed around the fixing plate 2. The ends of the bolts 4031 are rotatably connected to the inner wall of the square groove 4034. Specifically, firstly, the positioning ring 401 of the bushing 1 is embedded into the positioning groove 402 of the fixing plate 2 to complete the initial fixing operation; then, the bolt 4031 is rotated so that it rotates in the circular groove 4032. The bolt 4031 drives the locking block 4033 to slide in the square groove 4034, causing the locking block 4033 to gradually move closer to the positioning ring 401 and finally lock into the corresponding locking groove 4035 on its outer wall. By having multiple bolts 4031 synchronously drive the locking block 4033 and the locking groove 4035 to engage with each other, a tight connection between the bushing 1 and the fixing plate 2 is achieved, preventing relative displacement between the two.

[0028] Reference Figure 1 and Figure 2 An adjustment knob 5 is provided on the left side of the outer wall of the bushing 1. The adjustment knob 5 is fixedly connected to the left side of the outer wall of the threaded rod 3041. The fixing plate 2 is triangular, and multiple mounting holes 6 are provided at equal intervals on the outer wall of the fixing plate 2. Specifically, the adjustment knob 5 increases the contact area for hand force application, enabling it to quickly drive the axial positioning block 301 to move. The triangular structure of the fixing plate 2 is more mechanically stable than round or square shapes, which can distribute the force on the positioner during operation and reduce the risk of deformation. The mounting hole 6 can be adapted to fasteners of different specifications, making it easy to accurately connect and fix the fixing plate 2 to the external chuck. At the same time, it is compatible with chuck mounting positions of different sizes, improving the versatility of the positioner.

[0029] Working principle: When adjusting the axial positioning, rotate the threaded rod 3041. The threaded rod 3041 is fixed in the mounting groove 3043 of the bushing 1 through the bearing 3042. The threaded rod 3041 is threadedly engaged with the threaded groove 3044 of the axial positioning block 301, converting the rotational motion into the linear motion of the axial positioning block 301. At the same time, the slider 302 outside the axial positioning block 301 slides along the limiting groove 303 on the inner wall of the bushing 1, changing the positioning adjustment mode of the chuck positioner. The threaded rod 3041 drives the bushing 1. The bushing 1 is impacted and is not easily moved axially. First, insert the positioning ring 401 of the bushing 1 into the positioning groove 402 of the fixing plate 2 to complete the initial fixation; then rotate the bolt 4031, and the bolt 4031 rotates in the circular groove 4032. The bolt 4031 drives the locking block 4033 to slide in the square groove 4034, so that the locking block 4033 gradually approaches the positioning ring 401 and finally locks into the corresponding locking groove 4035 on its outer wall. By synchronously driving the locking block 4033 and the locking groove 4035 through multiple bolts 4031, the bushing 1 and the fixing plate 2 are tightly fixed to avoid relative displacement.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A user-friendly chuck positioner, including a bushing (1), characterized in that: A fixing plate (2) is provided on the right side of the outer wall of the bushing (1). An adjustment mechanism (3) is installed inside the bushing (1). The adjustment mechanism (3) is used for axial positioning adjustment. A fixing mechanism (4) is installed inside the fixing plate (2). The fixing mechanism (4) is used to fix the bushing (1) and the fixing plate (2). The adjustment mechanism (3) includes an axial positioning block (301), which is disposed inside the bushing (1). A slider (302) is fixedly connected to the outer wall of the axial positioning block (301). A limiting groove (303) is opened on the inner wall of the bushing (1). The limiting groove (303) is slidably connected to the slider (302). A drive assembly (304) is disposed inside the bushing (1).

2. The easy-to-use chuck positioner according to claim 1, characterized in that: The drive assembly (304) includes a threaded rod (3041), which is rotatably connected to the left end of the outer wall of the bushing (1). A bearing (3042) is fixedly connected to the left side of the outer wall of the threaded rod (3041). An installation groove (3043) is provided on the left side of the inner wall of the bushing (1). A threaded groove (3044) is provided on the left side of the outer wall of the axial positioning block (301). The threaded groove (3044) is threadedly connected to the threaded rod (3041).

3. The easy-to-use chuck positioner of claim 1, wherein: The fixing mechanism (4) includes a positioning ring (401), which is fixedly connected to the right end of the outer wall of the bushing (1). A positioning groove (402) is provided on the left side of the outer wall of the fixing plate (2). The positioning ring (401) engages with the positioning groove (402). A fixing component (403) is installed inside the fixing plate (2).

4. The easy-to-use chuck positioner of claim 3, wherein: The fixing component (403) includes a bolt (4031), which is disposed on the outer wall of the fixing plate (2). The outer wall of the fixing plate (2) is provided with a plurality of circular grooves (4032) at equal intervals. The bolt (4031) is rotatably connected to the circular grooves (4032). The inner wall of the circular grooves (4032) is provided with a locking block (4033). The outer wall of the bolt (4031) is threadedly connected to the locking block (4033). The locking block (4033) is slidably connected to the square groove (4034). The outer wall of the positioning ring (401) is provided with a plurality of locking slots (4035) at equal intervals. The locking block (4033) engages with the locking slots (4035).

5. The easy-to-use chuck positioner of claim 2, wherein: The threaded rod (3041) passes through the left side of the outer wall of the bushing (1), and the bearing (3042) is fixedly connected to the inner wall of the mounting groove (3043).

6. The easy-to-use chuck positioner of claim 4, wherein: The bolts (4031) are evenly distributed around the fixing plate (2), and the ends of the bolts (4031) are rotatably connected to the inner wall of the square groove (4034).

7. The easy-to-use chuck positioner of claim 1, wherein: An adjustment knob (5) is provided on the left side of the outer wall of the bushing (1), and the adjustment knob (5) is fixedly connected to the left side of the outer wall of the threaded rod (3041).

8. The easy-to-use chuck positioner according to claim 1, characterized in that: The fixing plate (2) is triangular, and the outer wall of the fixing plate (2) is provided with a plurality of mounting holes (6) at equal intervals.

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