CN212020489U

CN212020489U - Centering vice

Info

Publication number: CN212020489U
Application number: CN202020240943.2U
Authority: CN
Inventors: 张群志
Original assignee: Dongguan Wohua Precision Hardware Technology Co ltd
Current assignee: Dongguan Wohua Precision Hardware Technology Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-11-27
Anticipated expiration: 2030-03-03

Abstract

The utility model provides a centering vice, the on-line screen storage device comprises a base, the screw rod, movable vice jaw one and movable vice jaw two, set up on the base and dodge the groove along the activity of X axial extension, screw rod left side section and right side section are equipped with left-handed thread and dextrorotation thread respectively, the peripheral cover in screw rod both ends is equipped with support one and support two respectively, support one and support two are established respectively and are dodged the X axial both sides in groove in the activity, screw rod one end outwards extends support one or two formation drive ends of support, movable vice jaw one and movable vice jaw two lower part all are located the activity and dodge the inslot and are equipped with screw hole one and screw hole two respectively, screw hole one and screw hole two respectively with left-handed thread and dextrorotation thread cooperation, drive end drive screw is rotary motion and can drive movable vice jaw one and movable vice jaw two and do opposite or dorsad motion along the X axial. The utility model provides the high clamping speed of work piece has saved the lathe and has carried out the step confirmed to the X axial direction central line of work piece, has improved production efficiency.

Description

Centering vice

Technical Field

The utility model relates to a vice field specifically is a centering vice.

Background

The vice is a fixture fixed on a machine tool workbench and used for clamping a workpiece, the traditional vice clamps the workpiece through a fixed jaw and a movable jaw, in the clamping process, only the movable jaw can move, the clamping speed is low, the working efficiency is reduced, and when the machining process needs to use the center of the workpiece as a reference, if the size of the workpiece clamped on the vice changes, the machine tool needs to perform a centering procedure on the workpiece again, wherein the centering procedure is to firstly determine an X axial central line and a Y axial central line of the workpiece, then calculate the intersection point of the X axial central line and the Y axial central line to set the original point of the workpiece, and reduce the working efficiency.

Disclosure of Invention

An object of the utility model is to provide a centering vice to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a centering vice, includes base, screw rod, movable vice jaw one and movable vice jaw two, offer on the base and dodge the groove along the activity of X axial extension, screw rod left side section and right side section are equipped with levogyration thread and dextrorotation thread respectively, the peripheral cover in screw rod both ends is equipped with support one and support two respectively, support one and support two are established respectively in the activity and are dodged the X axial both sides in groove, screw rod one end outwards extends support one or two formation drive ends of support, movable vice jaw one and movable vice jaw two lower part all are located the activity and dodge the inslot and be equipped with screw hole one and screw hole two respectively, screw hole one and screw hole two cooperate with levogyration thread and dextrorotation thread respectively, drive end drive screw rod is rotary motion and can drive movable vice jaw one and movable vice jaw two and do opposite or dorsad motion along the X axial.

Furthermore, the first movable jaw and the second movable jaw are symmetrical pieces.

Furthermore, the lower part of the first movable jaw is provided with a mounting hole, and a nut is sleeved in the mounting hole and matched with the left-handed thread.

Furthermore, the movable jaw I comprises a T-shaped sliding block and a clamp block, a V-shaped groove is formed in the clamping surface of the clamp block, and the clamp block is attached to the base in a sliding mode and detachably connected to the T-shaped sliding block.

Further, the base is the type of protruding font, the guide slot that extends along the X axial is seted up respectively to the Y axial both sides on base upper portion, the Y axial both sides on T shape slider upper portion outwards extend the base respectively, the movable jaw one still includes the fastener, the fastener is installed respectively in Y axial both sides below and laminating under the upper surface of guide slot slidable.

The utility model has the advantages that:

when carrying out the clamping to the work piece, put the work piece on the base between movable vice jaw one and movable vice jaw two, rotary motion is done to drive screw rod, and the screw rod drives movable vice jaw one and movable vice jaw two and is done the opposite motion along the X axial and press from both sides tightly this work piece, compares with traditional vice, the utility model discloses a movable vice jaw one and movable vice jaw two can simultaneous movement, improved the clamping speed of work piece, improved production efficiency to the pitch of levogyration thread and dextrorotation thread is the same, makes movable vice jaw one the same with movable vice jaw two's removal displacement, and is convenient the utility model discloses can be with not equidimension work piece along X axial repetitive positioning to the same position, guaranteed not equidimension part's X axial centerline homogeneous phase, saved the lathe and carried out definite step to the X axial centerline of work piece, improved production efficiency.

Drawings

FIG. 1: a perspective view of a centering vice.

FIG. 2: an exploded view of a centering vise.

FIG. 3: a cross-sectional view of a centering vise.

Detailed Description

The invention is further explained below with reference to the drawings:

referring to fig. 1 to 3, a centering vise comprises a base 1, a screw 2, the movable jaw I3 and the movable jaw II 4 are respectively matched with the left-handed thread 21 and the right-handed thread 22, and the driving end driving screw 2 rotates to drive the movable jaw I3 and the movable jaw II 4 to move oppositely or reversely along the X axial direction.

The first support and the second support are used for supporting the screw rod 2 to enable the screw rod 2 to normally rotate and are also used for limiting the radial displacement of the screw rod 2, two ends of the screw rod 2 are respectively provided with a shaft shoulder structure attached to the inner side faces of the first support and the second support, the axial displacement of the screw rod 2 can be limited through the shaft shoulder structure, the first support and the second support enable the screw rod 2 to have two fulcrums, the force arm effect of the screw rod 2 is reduced, and the working stability of the screw rod 2 can be improved.

Further, referring to fig. 2, the first support and the second support are symmetrical members, the first support includes a side wall and a bearing seat 5, the side wall and the base 1 are of an integral structure and are located on the left side of the movable avoiding groove 11, a countersunk hole is formed in the side wall, and the bearing seat 5 is sleeved in the countersunk hole.

Further, the driving end of the screw rod 2 is in a square structure.

Furthermore, the movable jaw I3 and the movable jaw II 4 are symmetrical pieces, a mounting hole is formed in the lower portion of the movable jaw I3, and a nut is sleeved in the mounting hole and matched with the left-handed thread 21.

Further, referring to fig. 1 and 2, the movable jaw i 3 includes a T-shaped slider 31 and a clamp block 32, a V-shaped groove 321 is formed on a clamping surface of the clamp block 32, and the clamp block 32 is slidably attached to the base 1 and detachably connected to the T-shaped slider 31.

The number of the V-shaped grooves 321 may be one or two, when the number of the V-shaped grooves 321 is one, the V-shaped grooves 321 may have a longitudinal or transverse structure, when the V-shaped grooves 321 have a longitudinal structure, the bottom surfaces of the V-shaped grooves 321 are sealed by the top surfaces of the caliper blocks 32, and when the number of the V-shaped grooves 321 is two, the two V-shaped grooves are distributed in a crisscross manner.

Realize through setting up V-arrangement groove 321 that movable jaw one 3 and movable jaw two 4 can carry out the centre gripping to the rod, when V-arrangement groove 321 was longitudinal structure, V-arrangement groove 321 sealed through T shape slider 31's top surface, when the rod was by longitudinal structure's V-arrangement groove 321 centre gripping, the bottom surface laminating of this rod was on the top surface of T shape slider, and it is spacing to realize carrying out the lower limit to the rod, has guaranteed the uniformity of same rod positioning height.

Further, referring to fig. 1 and 2, the base 1 is in a shape of a Chinese character 'tu', guide grooves 12 extending along the X-axis direction are respectively formed in two sides of the Y-axis direction of the upper portion of the base 1, the base 1 extends outwards from two sides of the Y-axis direction of the upper portion of the T-shaped sliding block 31, the movable jaw one 3 further comprises clamping pieces 5, and the clamping pieces 5 are respectively installed below the two sides of the Y-axis direction and are slidably attached to the lower surface of the guide grooves 12.

The clamping piece 5 is used for preventing the T-shaped sliding block 31 from jumping upwards when moving, the upper portion of the T-shaped sliding block 31 is attached to the base in a sliding mode and used for preventing the T-shaped sliding block 31 from jumping downwards when moving, and finally the jumping of the movable jaw I3 and the movable jaw II 4 in the up-down direction is eliminated, so that the stability of the movable jaw I3 and the movable jaw II 4 when moving is guaranteed, when a workpiece is clamped by the movable jaw I3 and the movable jaw II 4, the workpiece cannot be subjected to position deviation after being clamped due to the jumping of the movable jaw I3 and the movable jaw II 4 in the up-down direction, the positioning consistency of the workpiece is reduced, and the machining precision of the workpiece is influenced.

When clamping a workpiece, the workpiece is placed on the base 1 between the movable jaw I3 and the movable jaw II 4, the screw 2 is driven to rotate by the driving end of the wrench driving screw 2, the screw 2 drives the movable jaw I3 and the movable jaw II 4 to move oppositely along the X axial direction through the screw hole I and the screw hole II respectively by the left-handed screw thread 21 and the right-handed screw thread 22, compared with the traditional vice, the movable jaw I3 and the movable jaw II 4 of the utility model can move simultaneously, the clamping speed of the workpiece is improved, the production efficiency is improved, the screw pitches of the left-handed screw thread 21 and the right-handed screw thread 22 are the same, the moving displacement of the movable jaw I3 and the movable jaw II 4 is the same, the utility model is convenient, the workpieces with different sizes can be repeatedly positioned to the same position along the X axial direction, the X axial central lines of the parts with different sizes are ensured to be the same, the step of determining the X axial center line of the workpiece by the machine tool is omitted, the efficiency of the centering process of the machine tool is improved, and the production efficiency is improved.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a centering vice which characterized in that: including base, screw rod, activity keep silent one and activity keep silent two, offer on the base and keep away the groove along the activity of X axial extension, screw rod left side section and right side section are equipped with levogyration thread and dextrorotation thread respectively, the peripheral cover in screw rod both ends is equipped with support one and support two respectively, support one and support two are established respectively in the activity and are kept away the X axial both sides in groove, screw rod one end outwards extends support one or two formation drive ends of support, the lower part of activity keep silent one and activity keep silent two all is located the activity and keeps away the inslot and be equipped with screw hole one and screw hole two respectively, screw hole one and screw hole two cooperate with levogyration thread and dextrorotation thread respectively, drive end drive screw rod is rotary motion and can drive activity keep silent one and activity keep silent two and do opposite directions or dorsad along the X axial.

2. The centering vise of claim 1, wherein: the first movable jaw and the second movable jaw are symmetrical pieces.

3. The centering vise of claim 1, wherein: and the lower part of the first movable jaw is provided with a mounting hole, and a nut is sleeved in the mounting hole and matched with the left-handed thread.

4. A centering vise as claimed in claim 3, wherein: the movable jaw I comprises a T-shaped sliding block and a clamp block, a V-shaped groove is formed in the clamping surface of the clamp block, and the clamp block is attached to the base in a sliding mode and is detachably connected to the T-shaped sliding block.

5. The centering vise of claim 4, wherein: the base is the type of protruding font, the guide slot that extends along the X axial is seted up respectively to the Y axial both sides on base upper portion, the Y axial both sides on T shape slider upper portion outwards extend the base respectively, the activity is kept silent one and is still included the fastener, the fastener is installed respectively in Y axial both sides below and slidable ground laminating under the upper surface of guide slot.