CN215317078U

CN215317078U - Quick shaft clamping device

Info

Publication number: CN215317078U
Application number: CN202023168821.6U
Authority: CN
Inventors: 张坤之; 唐恒真
Original assignee: Liaocheng Xintai Machine Tool Co ltd
Current assignee: Liaocheng Xintai Machine Tool Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-28
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a shaft rapid clamping device which comprises a milling table and a V-shaped base arranged in the middle of the milling table, wherein the V-shaped base is axially arranged in parallel to a processing shaft and is used for placing the processing shaft in a V-shaped opening and supporting and limiting the processing shaft; a screw rod penetrates through the lower part of the milling table, a first nut seat and a second nut seat are screwed on the screw rod and on two sides of the milling table, clamping rear arms are symmetrically connected to the first nut seat and the second nut seat, clamping front arms are connected to the clamping rear arms, and the joints of the clamping front arms and the clamping rear arms are rotatably connected to the milling table through pin shafts; milling platform one side and being equipped with the through-hole parallel with the processing axle axial, install the locating lever in the through-hole, the locating lever tip is connected with the locating plate perpendicularly, mills on the platform and be equipped with the screw with the through-hole perpendicular intercommunication, and the spiro union has clamping screw in the screw for clamping screw withstands the position of fixed positioning pole. The utility model realizes one-step clamping, has simple operation and high efficiency, ensures more accurate processing position of the processing shaft and ensures the straightness and symmetry of clamping.

Description

Quick shaft clamping device

Technical Field

The utility model relates to the technical field of shaft machining equipment, in particular to a shaft rapid clamping device.

Background

In the mechanical industry, there are many shaft machining, mainly axial machining and radial machining. In the axial machining of parts, mainly an axial milling process, such as key groove milling, plane milling and the like, is performed, and in the machining, one end is clamped by a dividing head, and the other end is clamped by a tailstock tightening mode, and then the part machining work is performed. The clamping time of the general machining mode (the dividing head is clamped tightly, the tailstock is propped tightly) is long, the precision is not easy to guarantee, two times of operation are needed, the time consumption is long, meanwhile, certain errors can exist in the part precision such as straightness accuracy, symmetry and the like, the straightness accuracy and symmetry requirements generally exist during the working of machining key grooves and the like, and high errors or inferior products and even waste products can be generated in the clamping. Therefore, a shaft rapid clamping device is urgently needed to be designed to solve the problems that the existing shaft machining equipment is complex in clamping the machining shaft, low in efficiency, and poor in clamping straightness and symmetry and influences machining quality.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide a quick shaft clamping device.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a shaft type rapid clamping device comprises a milling table and a V-shaped base arranged in the middle of the milling table, wherein the V-shaped base is formed by axially parallel processing shafts, is embedded into the upper part of the milling table, has an upward V-shaped opening, and is used for placing the processing shafts in the V-shaped opening and supporting and limiting the processing shafts;

a screw rod penetrates through the lower part of the milling table, a first screw seat and a second screw seat are screwed on the screw rod and on two sides of the milling table, clamping rear arms are symmetrically connected to the first screw seat and the second screw seat, clamping front arms are connected to the clamping rear arms and used for clamping a processing shaft placed on the V-shaped base, and the joint of the clamping front arms and the clamping rear arms is rotationally connected to the milling table through a pin shaft and used for driving the front end of the clamping front arms to rotate along the pin shaft to clamp the processing shaft through the rotation of the screw rod;

mill platform one side and be equipped with the through-hole parallel with the processing axle axial, install the locating lever in the through-hole, the locating lever tip is connected with the locating plate perpendicularly for keeping off the one end of establishing the processing axle of placing on V type base, mill bench and with the through-hole perpendicular intercommunication be equipped with the screw, the spiro union has clamping screw in the screw for clamping screw withstands the position of fixed positioning pole.

Specifically, the middle of the screw rod is rotatably connected into the milling table through a bearing, threads arranged on the screw rod are reverse threads on two sides of the milling table, and the screw seat I and the screw seat II are simultaneously close to or far away from the milling table when the screw rod is rotated.

Specifically, a hand wheel is installed at one end of the screw rod and used for rotating the screw rod.

Specifically, a clamping block is arranged on one side, close to the machining shaft, of the clamping front arm and used for clamping the machining shaft in an anti-skidding mode.

Specifically, the positioning rod adopts a trapezoidal shaft and is used for positioning the machining position of the machining shaft by controlling the extension length of the trapezoidal shaft.

The utility model has the following beneficial effects:

the shaft rapid clamping device is suitable for rapidly clamping axial machining parts, the designed V-shaped base supports and positions the machining shaft, and then the clamping forearms are driven by the screw rods to clamp the machining shaft, so that clamping is completed in one step, and the shaft rapid clamping device is simple to operate and high in efficiency; the locating lever and the locating plate of design are fixed a position to processing axle one end, make processing axle machined position more accurate, guarantee tight straightness accuracy and symmetry, and are higher to the processingquality of processing axle, carry out the accuracy adjustment, and follow-up processing then need not adjustment alignment once more, and efficiency and precision all can be improved by a wide margin.

Drawings

Fig. 1 is a schematic structural diagram of a shaft-type rapid clamping device.

In the figure: 1-milling a platform; 2-V type base; 3-clamping the forearm; 4-clamping the rear arm; 5-positioning the rod; 6-a clamping screw; 7-a screw rod; 8-hand wheel; 9-a pin shaft; 10-a clamping block; 11-a first screw seat; 12-the second nut seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in further detail in the following clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figure 1, the quick shaft clamping device comprises a milling table 1 and a V-shaped base 2 arranged in the middle of the milling table 1, wherein the V-shaped base 2 is axially parallel to a processing shaft, and the V-shaped base 2 is embedded into the upper portion of the milling table 1 and has an upward V-shaped opening and is used for placing the processing shaft in the V-shaped opening and supporting and limiting.

The lower portion of the milling table 1 is provided with a lead screw 7 in a penetrating mode, a first screw seat 11 and a second screw seat 12 are screwed on the lead screw 7 and on two sides of the milling table 1, the middle portion of the lead screw 7 is connected into the milling table 1 in a rotating mode through a bearing, threads arranged on the lead screw 7 are reverse threads on two sides of the milling table 1, the first screw seat 11 and the second screw seat 12 are close to the milling table 1 or far away from the milling table 1 simultaneously when the lead screw 7 is rotated, a hand wheel 8 is installed at one end of the lead screw 7, and the lead screw 7 is rotated through the hand wheel 8.

Have the tight postbrachium 4 of clamp on screw seat 11 and the screw seat two 12, be connected with on the tight postbrachium 4 of clamp and press from both sides tight forearm 3, press from both sides tight forearm 3 and press from both sides tight postbrachium 4 and be integrated into one piece, and the junction is the bended-arc design, be used for pressing from both sides the processing axle of placing on V type base 2, press from both sides tight forearm 3 and press from both sides tight postbrachium 4 junction and rotate through round pin axle 9 and connect on milling platform 1, be used for rotating through lead screw 7 and drive 3 front ends of the tight forearm of clamp and press from both sides tight processing axle along round pin axle 9 rotation, it is equipped with tight piece 10 of clamp to be close to processing axle one side on the tight forearm 3, play the antiskid effect when being used for pressing from both sides tight processing axle, it is more stable when pressing from both sides tight processing axle.

Milling 1 one side of platform and being equipped with the through-hole parallel with the processing axle axial, install locating lever 5 in the through-hole, 5 tip of locating lever are connected with the locating plate perpendicularly for the locating plate keeps off the one end of establishing the processing axle of placing on V type base, and locating lever 5 adopts trapezoidal axle, is used for the processing position through the extension length location processing axle of control trapezoidal axle. The milling table 1 is provided with a screw hole which is vertically communicated with the through hole, and a clamping screw 6 is screwed in the screw hole and used for enabling the clamping screw 6 to abut against the position of the fixed positioning rod 5.

When the milling machine is used, the clamping screw 6 is loosened, the extending length of the positioning rod 5 is adjusted, namely, the position of a positioning plate at the end part of the positioning rod 5 is determined, the clamping screw 6 is screwed down for positioning and fixing, then the first screw seat 11 and the second screw seat 12 are moved towards one side of the milling table 1 by shaking the hand wheel 8, namely, the two clamping forearms 3 are far away from opening, the processing shaft is placed into the V-shaped base 2, one end of the processing shaft is propped against the positioning plate, the hand wheel 8 is shaken in the reverse direction by hand to enable the two clamping forearms 3 to approach to the inner sides, the processing shaft is clamped, the processing shaft is processed, and after the processing is finished, the hand wheel 8 is shaken to enable the two clamping forearms 3 to be far away from opening, the processing shaft is taken out, and the next processing shaft is placed. The V-shaped base 2 supports and positions the machining shaft, then the clamping front arm 3 is driven to clamp the machining shaft through the screw rod 7, one-time operation is conducted to complete clamping, only one-time operation is needed before part machining, precision adjustment is conducted, subsequent machining does not need to be adjusted again for alignment, and efficiency and precision can be greatly improved.

The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.

The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims

1. A quick shaft clamping device is characterized by comprising a milling table and a V-shaped base arranged in the middle of the milling table, wherein the V-shaped base is axially arranged in parallel with a processing shaft, is embedded into the upper part of the milling table, has an upward V-shaped opening, and is used for placing the processing shaft in the V-shaped opening and supporting and limiting;

2. The shaft rapid clamping device according to claim 1, wherein the middle part of the screw rod is rotatably connected in the milling table through a bearing, and threads provided on the screw rod are reverse threads on both sides of the milling table, so that the first nut seat and the second nut seat are simultaneously close to or simultaneously far away from the milling table when the screw rod is rotated.

3. The shaft rapid clamping device according to claim 2, wherein a hand wheel is mounted at one end of the screw rod for rotating the screw rod.

4. The shaft rapid clamping device according to claim 1, wherein a clamping block is arranged on one side of the clamping front arm close to the processing shaft, and is used for clamping the processing shaft in an anti-slip manner.

5. The shaft rapid clamping device according to claim 1, wherein the positioning rod is a trapezoidal shaft and is used for positioning the machining position of the machining shaft by controlling the extension length of the trapezoidal shaft.