Adjustable centering five-axis vice

Abstract

The utility model discloses a five -axis vice of adjustable centering, including fixed base, center installation support, two -way screw rod, left sliding block, right sliding block, left jaw and right jaw, the center installation support includes center locating block and centering ring, two lock nuts are sleeved in the middle part of two -way screw rod, and two ball pre -tightening devices and two sealing rings are arranged between corresponding lock nuts and centering ring respectively. The utility model drives by screw rod and is configured center installation support, and the force is directly generated in linear mode, and does not need additional force amplifier, and the two jaws can realize synchronous opening and closing, and the clamping force size is decided by torque, and the clamping range is according to the size of the used jaw and screw rod, has the best workpiece accessibility, supports workpiece and processes from five sides, and the clamping range has the expansibility, and the fast -changing system of collocation screw rod can conveniently and quickly complete the adjustment, to adapt to the clamping task of different size workpieces.

Description

Technical Field

[0001] This utility model belongs to the field of clamping technology, and in particular relates to an adjustable centering five-axis vise. Background Technology

[0002] Most existing five-axis vises use unidirectional clamping, meaning one jaw is fixed while the other is pushed by a screw. This method easily causes the workpiece to shift to one side during clamping, and the clamping force is concentrated in a localized area, potentially leading to deformation and vibration. Uneven force on the jaws affects machining accuracy, and manual centering is required for each clamping operation, which is time-consuming. Therefore, it is necessary to design an adjustable centering five-axis vise. Utility Model Content

[0003] In view of this, one of the objectives of this utility model is to provide an adjustable centering five-axis vise, which achieves synchronous opening or closing of the two jaws through a centering and locking bidirectional screw.

[0004] To achieve the above objectives, this utility model provides an adjustable centering five-axis vise, including a fixed base, a central mounting bracket, a bidirectional screw, a left slider, a right slider, a left jaw, and a right jaw;

[0005] The central mounting bracket is mounted on a fixed base, and a guide rail is mounted on the fixed base. The left slider and the right slider are respectively mounted on both sides of the central mounting bracket. The left jaw is mounted on the left slider, and the right jaw is mounted on the right slider.

[0006] The central mounting bracket includes a central positioning block and a central centering ring, with the central centering ring disposed on the central positioning block; the bidirectional screw passes through the central centering ring; the left slider and the right slider are respectively threaded into the bidirectional screw; when the bidirectional screw rotates around its axis, the left slider and the right slider move symmetrically along the guide rail;

[0007] Two locking nuts are fitted onto the middle of the bidirectional screw, and two ball preload devices and two sealing rings are respectively disposed between the corresponding locking nuts and the centering ring; each ball preload device includes multiple balls; the locking nuts are used to lock the bidirectional screw and the centering ring; the ball preload devices are used to allow the bidirectional screw to rotate around the axis; the sealing rings are positioned on the outside of the ball preload devices.

[0008] Preferably, the left jaw and the left slider are detachably fixedly connected by screws and positioning grooves; the right jaw and the right slider are detachably fixedly connected by screws and positioning grooves.

[0009] Preferably, the central positioning block and the fixed base are fixedly connected by positioning pins.

[0010] Preferably, a scale is provided on the fixed base.

[0011] Preferably, jaw scales are provided on the left and right jaws respectively.

[0012] Preferably, one end of the bidirectional screw is a drive connection end.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model is driven by a screw and equipped with a central mounting bracket. The force is generated directly in a linear manner without the need for an external force amplifier. Its two jaws can open and close synchronously. The clamping force is determined by the torque, and the clamping range depends on the specifications of the jaws and screw used.

[0015] 2. This utility model has the best workpiece accessibility, supports workpiece processing from five sides, and can directly apply all clamping force to the workpiece from the top; at the same time, its clamping range is expandable, which can adapt to workpieces of different lengths, and can be easily and quickly adjusted with the screw quick change system to adapt to new clamping tasks.

[0016] 3. This utility model uses a ball preload device, which can improve positioning accuracy and clamping force. It also uses a locking nut and sealing ring to surround the middle area of ​​the screw in all directions to prevent dust and block iron filings, protecting the screw from contamination in a closed environment.

[0017] 4. This utility model has a high clamping force, which can achieve a reliable clamping process without pre-stamping. The overall structure is easy to transport and can be quickly disassembled and cleaned. The scale is set on the surface of the jaws and the base where they are in contact with the workpiece, eliminating the need for an additional scale device. It is lighter and easier to package, reducing the difficulty of installation. The jaws are detachable, which greatly improves the flexibility of assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure and force of the ball preload device according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the jaw scale of an embodiment of the present utility model;

[0023] Figure 5 This is an exploded view of a part according to an embodiment of the present utility model. Detailed Implementation

[0024] One of the core features of this invention is to provide an adjustable-centering five-axis vise, which is equipped with a bidirectional screw. The bidirectional screw is centered and fixed by a central centering ring, a locking nut and a ball preload device and can rotate around the axis to realize the synchronous opening or closing of the two jaws.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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] like Figure 1 As shown, the five-axis vise of this utility model embodiment includes a left jaw 1, a right jaw 6, a left slider 11, a right slider 8, a fixed base 10, a bidirectional screw 2, a locking nut 3 / 5, a centering ring 4, and a center positioning block 9. The center positioning block 9 is fixedly mounted on the fixed base 10, the centering ring 4 is fixedly mounted on the center positioning block 9, and the center positioning block 9 is also provided with a plug 7 for fixing and adjustment. The fixed base 10 is also provided with a guide rail. The left slider 11 and the right slider 8 are respectively located on both sides of the center positioning block 9 and can slide along the guide rail. The bidirectional screw... 2. The screw rod 2 passes through the central centering ring 4 and can rotate around the axis. The locking nut 3 / 5 is sleeved in the middle of the double-acting screw rod 2 to lock the double-acting screw rod 2 and the central centering ring 4. The two ends of the double-acting screw rod 2 are threaded to the left slider 11 and the right slider 8 respectively. When the double-acting screw rod 2 rotates around the axis, the left slider 11 and the right slider 8 can move symmetrically towards or away from each other along the guide rail. The left jaw 1 is fixedly connected to the left slider 11 by screws and positioning grooves, and the right jaw 6 is fixedly connected to the right slider 8 by screws and positioning grooves. The left jaw 1 and the right jaw 6 are used to hold the workpiece. An auxiliary scale is set on the fixed base 10 to help align the longitudinal center of the workpiece, prevent uneven force due to different spacing on both sides during clamping, and improve the machining accuracy.

[0027] like Figure 2As shown, the center positioning block 9 is mounted on the fixed base via two positioning pins 16 / 17 to achieve high-precision positioning. One end of the bidirectional screw 2 is a drive connection end for connecting to a drive device. The force is generated directly in a linear manner without the need for a force amplifier, and the clamping force depends on the torque provided by the drive device to the bidirectional screw 2. Two ball preload devices 13 / 14 are set between the corresponding locking nuts 3 / 5 and the center centering ring 4. Each ball preload device 13 / 14 includes multiple balls, allowing the bidirectional screw 2 to rotate around its own rotation axis while being locked with the center centering ring 4. The center of the bidirectional screw 2 can be adjusted at the center positioning block 9 via the locking nuts 3 / 5 to improve the fixture accuracy. Two sealing rings 12 / 15 are set between the corresponding locking nuts 3 / 5 and the center centering ring 4. The sealing rings 12 / 15 are positioned on the outer side compared to the ball preload devices 13 / 14, thus obtaining a dustproof high-precision screw and greatly reducing the impact of dust and iron filings on the fixture accuracy.

[0028] like Figure 3 As shown, the middle part of the bidirectional screw 2 is provided with a thread that mates with the locking nut 3 / 5. The balls of the ball preload device 13 / 14 are arranged between the locking nut 3 / 5 and the centering ring 4. The force F exerted by the locking nut 3 / 5 on the centering ring 4 through the balls is decomposed along the x and y directions as shown in the figure (Fx, Fy). Thus, the reaction force generated by the centering ring 4 plays the role of centering the bidirectional screw.

[0029] like Figure 4 As shown, jaw scales 18 can be set on the left jaw 1 and the right jaw 6 to help align the lateral center of the workpiece, prevent the center deviation of the workpiece from causing the center to deviate after clamping, and improve the machining accuracy. The jaw scales 18 and the scales of the fixed base 10 are made of aluminum alloy or other metals and have a silver coating on the surface to make the scale lines clearly visible. The units are accurate to millimeters and are used to help locate the geometric center of the workpiece, solving the problem of easy deviation of the center of gravity without a reference scale.

[0030] like Figure 5 As shown, both the left jaw 1 and the right jaw 6 are detachable, improving assembly flexibility to meet the processing requirements of different workpieces. On the other hand, since this embodiment is equipped with a central mounting bracket mechanism based on the central positioning block 9 and the central centering ring 4, and the bidirectional screw 2 is locked and fixed by the locking nut 3 / 5, it is possible to easily and quickly replace the bidirectional screw 2 of different lengths by unlocking the nut to adjust the clamping range to adapt to the processing needs of workpieces of different lengths.

[0031] This embodiment is driven by a bidirectional screw 2 and equipped with a central mounting bracket. The force is generated directly in a linear manner, without the need for an external force amplifier. The left jaw 1 and right jaw 6 can open and close synchronously. The clamping force is determined by the torque, and the clamping range depends on the specifications of the jaws and the length of the bidirectional screw 2. This embodiment offers optimal workpiece accessibility, supporting processing of the workpiece from five sides, and can apply all clamping force directly to the workpiece. Simultaneously, its clamping range is expandable, adapting to workpieces of different lengths. The screw quick-change system formed by the bidirectional screw 2 and the central mounting bracket mechanism allows for convenient and rapid adjustment to accommodate new clamping tasks. This embodiment uses a ball bearing preload device to improve positioning accuracy and clamping force. Locking nuts 3 / 5 and sealing rings 12 / 15 are used to comprehensively surround the middle and central centering ring 4 of the bidirectional screw 2 for dust prevention and to block metal shavings, protecting the screw from contamination in a closed environment. Furthermore, this embodiment, with its high clamping force, achieves a reliable clamping process without pre-stamping, and its overall structure is easy to handle, while also facilitating quick disassembly and cleaning. This embodiment features scales on the jaws and base surfaces where they contact the workpiece, eliminating the need for additional scale devices, making it lighter and easier to package, and reducing installation difficulty; the jaws are detachable, greatly improving assembly flexibility.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A five-axis vise with adjustable centering, characterized in that, Includes a fixed base, a central mounting bracket, a two-way screw, a left slider, a right slider, a left jaw, and a right jaw; The central mounting bracket is mounted on a fixed base, and a guide rail is mounted on the fixed base. The left slider and the right slider are respectively mounted on both sides of the central mounting bracket. The left jaw is mounted on the left slider, and the right jaw is mounted on the right slider. The central mounting bracket includes a central positioning block and a central centering ring, with the central centering ring disposed on the central positioning block; the bidirectional screw passes through the central centering ring; the left slider and the right slider are respectively threaded into the bidirectional screw; when the bidirectional screw rotates around its axis, the left slider and the right slider move symmetrically along the guide rail; Two locking nuts are fitted onto the middle of the bidirectional screw, and two ball preload devices and two sealing rings are respectively disposed between the corresponding locking nuts and the centering ring; each ball preload device includes multiple balls; the locking nuts are used to lock the bidirectional screw and the centering ring; the ball preload devices are used to allow the bidirectional screw to rotate around the axis; the sealing rings are positioned on the outside of the ball preload devices.

2. The five-axis vise according to claim 1, characterized in that, The left jaw and the left slider are detachably fixedly connected by screws and positioning grooves; the right jaw and the right slider are detachably fixedly connected by screws and positioning grooves.

3. The five-axis vise according to claim 1, characterized in that, The central positioning block and the fixed base are fixedly connected by positioning pins.

4. The five-axis vise according to claim 1, characterized in that, A ruler is provided on the fixed base.

5. The five-axis vise according to claim 1, characterized in that, The left and right jaws are each equipped with a jaw scale.

6. The five-axis vise according to claim 1, characterized in that, One end of the bidirectional screw is the drive connection end.

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