CN215942148U

CN215942148U - Centering positioning device for machining

Info

Publication number: CN215942148U
Application number: CN202121495991.7U
Authority: CN
Inventors: 高海泉
Original assignee: Hefei Yitong Precision Machinery Co ltd
Current assignee: Hefei Yitong Precision Machinery Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-03-04
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a centering and positioning device for machining, which comprises a workbench, wherein a guide groove is horizontally formed in the workbench, a driving motor and a first bidirectional screw rod connected with the shaft end of the driving motor are arranged below the workbench, the axial direction of the first bidirectional screw rod is parallel to the guide of the guide groove, two groups of clamping arms respectively in threaded connection with bidirectional screw thread sections of the first bidirectional screw rod are arranged in the guide groove in a sliding manner, and the adjacent side surfaces of the two groups of clamping arms are elastically connected with clamping plates; the bottom plate is laid in the middle of the upper end face of the workbench, the sliding groove and the open slot are formed in the bottom plate, two groups of positioning plates which are respectively connected with the sliding groove in a sliding mode are symmetrically arranged on the bottom plate, a second bidirectional screw rod is arranged in the open slot, a screw is connected to the two-way screw rod in the two-way thread section, and the two groups of positioning plates are connected with the two groups of screws respectively. The utility model has simple and novel structure, convenient operation, good centering and positioning effect and firm positioning.

Description

Centering positioning device for machining

Technical Field

The utility model relates to the technical field of machining, in particular to a centering and positioning device for machining.

Background

The machining is short for machining, the machining mainly comprises manual machining and numerical control machining, the manual machining refers to a method for machining various materials by means of manual operation of mechanical equipment such as a milling machine, a lathe, a drilling machine and a sawing machine by mechanical workers, the manual machining is suitable for small-batch and simple part production, when workpieces such as plates are machined, centering and positioning need to be conducted on the workpieces, however, an existing positioning device cannot be adjusted, the lengths of the plates are multiple, and therefore the positioning effect is poor, the machining quality is poor, and positioning is not firm.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a centering and positioning device for machining, so as to solve the technical problem.

In order to solve the technical problems, the utility model adopts the technical scheme that:

a centering and positioning device for machining comprises a workbench, wherein a guide groove is horizontally formed in the workbench, a driving motor and a first bidirectional screw rod connected with the shaft end of the driving motor are arranged below the workbench, the axial direction of the first bidirectional screw rod is parallel to the guide direction of the guide groove, two groups of clamping arms which are respectively in threaded connection with bidirectional screw thread sections of the first bidirectional screw rod are arranged in the guide groove in a sliding mode, clamping plates are elastically connected to the adjacent side surfaces of the two groups of clamping arms, and a plurality of bull-eye balls are arranged on the adjacent side surfaces of the two groups of clamping plates;

the utility model discloses a brake wheel, including workstation, bottom plate, the guide vertical spout and the open slot of direction and guide way are seted up to the up end middle part of workstation, set up on the bottom plate direction vertical spout and the open slot of direction, the bottom plate symmetry be equipped with two sets ofly respectively with spout sliding connection's locating plate, the level is equipped with the direction vertically second bidirectional screw of axial and guide way in the open slot, second bidirectional screw axle head runs through the bottom plate lateral wall and is equipped with the rocking handle, and this end department is coaxial to be provided with the brake wheel, and equal threaded connection has the screw on the bidirectional screw thread section of second bidirectional screw, and is two sets of the screw is connected respectively two sets of the locating plate, the workstation with be equipped with on the adjacent side of brake wheel and drive actuating cylinder, the drive end that drives actuating cylinder is equipped with the brake block with the arc excircle cooperation butt of brake wheel.

Furthermore, splint and the adjacent side level of arm lock are equipped with two sets of guide arms that run through the arm lock perpendicularly, the one end that the guide arm runs through the arm lock is equipped with the stopper, and the cover is equipped with the spring that is located between splint and the arm lock on the guide arm body.

Further, nut seats are symmetrically arranged at the tops of the two groups of positioning plates, screw rods which are vertical to the axial direction are connected onto the nut seats in a threaded mode, a pressing plate is arranged at the lower end of each screw rod, and a hand wheel is arranged at the upper end of each screw rod.

Furthermore, the driving motor adopts an electromagnetic power-off braking motor.

The utility model has the beneficial effects that:

the utility model provides a centering and positioning device for machining, which is simple and novel in structure, convenient to operate, good in centering and positioning effect and firm in positioning.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a front view of the present invention.

In the figure: 1. the hydraulic brake device comprises a workbench, 2, a guide groove, 3, a driving motor, 4, a first bidirectional screw rod, 5, clamping arms, 6, clamping plates, 7, a bull eye ball, 8, a bottom plate, 9, a sliding groove, 10, an open slot, 11, a positioning plate, 12, a second bidirectional screw rod, 13, a rocking handle, 14, a brake wheel, 15, a driving cylinder, 16, a brake pad, 17, a guide rod, 18, a limiting block, 19, a spring, 20, a nut seat, 21, a screw rod, 22, a pressing plate, 23 and a hand wheel.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all 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 fig. 1-3, the utility model provides a centering and positioning device for machining, which comprises a workbench 1, wherein a guide groove 2 is horizontally formed in the workbench 1, a driving motor 3 and a first bidirectional screw 4 connected with the shaft end of the driving motor 3 are arranged below the workbench 1, wherein the driving motor 3 adopts an electromagnetic power-off brake motor, the axial direction of the first bidirectional screw 4 is parallel to the guide of the guide groove 2, two groups of clamping arms 5 respectively in threaded connection with bidirectional screw sections of the first bidirectional screw 4 are arranged in the guide groove 2 in a sliding manner, the adjacent side surfaces of the two groups of clamping arms 5 are elastically connected with clamping plates 6, and the adjacent side surfaces of the two groups of clamping plates 6 are respectively provided with a plurality of bull's eye balls 7;

bottom plate 8 has been laid to the up end middle part of workstation 1, the direction vertically spout 9 and the open slot 10 of direction and guide way 2 have been seted up on

bottom plate

8, 8 symmetries of bottom plate are equipped with two sets ofly respectively with spout 9 sliding connection's locating plate 11, the level is equipped with the direction vertically second bidirectional screw 12 of axial and guide way 2 in the open slot 10, second bidirectional screw 12 one shaft end runs through 8 lateral walls of bottom plate and is equipped with rocking handle 13, and this end department is coaxial to be provided with brake wheel 14, equal threaded connection has screw 24 on the two-way screw thread section of second bidirectional screw 12, two sets of locating plates 11 are connected respectively to two sets of screw 24, be equipped with on the side that workstation 1 and brake wheel 14 are adjacent and drive actuating cylinder 15, the drive end that drives actuating cylinder 15 is equipped with the brake block 16 with the arc excircle cooperation butt of brake wheel 14.

In this embodiment, splint 6 is equipped with two sets of guide arms 17 that run through arm lock 5 perpendicularly with the adjacent side level of arm lock 5, and the one end that guide arm 17 runs through arm lock 5 is equipped with stopper 18, and the cover is equipped with the spring 19 that is located between splint 6 and the arm lock 5 on the guide arm 17 body, and driving motor 3's power is bigger, through the effect of spring 18, makes splint 6 and panel elasticity butt, reduces the injury of hard butt to panel.

In this embodiment, nut seats 20 are symmetrically arranged at the tops of two sets of positioning plates 11, screw rods 21 which are vertical in the axial direction are connected to the nut seats 20 in a threaded manner, a pressing plate 22 is arranged at the lower ends of the screw rods 21, a hand wheel 23 is arranged at the upper ends of the screw rods 21, and the hand wheel 23 is rotated to rotate the screw rods 21 to move down, so that the pressing plate 22 is tightly pressed on the upper surface of a plate, the stability of the plate during processing is further improved, and the plate can be prevented from being displaced during processing to cause adverse effects on the processing.

The working principle of the utility model is as follows:

firstly, a plate is placed on a bottom plate 8, then a first bidirectional screw 4 is driven to rotate by a driving motor 3, so that two groups of clamping arms 5 drive two groups of clamping plates 6 to move inwards, so that the two groups of clamping plates 6 are respectively abutted against the left side and the right side of the plate, the plate is centered left and right, then a rocking handle 13 is rotated, a second bidirectional screw 12 is driven to rotate, so that two groups of screw nuts 24 respectively drive two groups of positioning plates 11 to move inwards, the two groups of positioning plates 11 are respectively abutted against the front side and the rear side of the plate, the plate is centered front and rear, even if the clamping plates 6 are abutted against the side of the plate, the front and rear movement centering of the plate is not hindered, the plate is conveniently centered and positioned front and rear by the left and right centering and front and rear centering of the plate, and the second bidirectional screw 12 can be prevented from reversely rotating by the matching and abutting of a driving brake pad 16 of a driving air cylinder 15 and an arc excircle of a brake wheel 14, the positions of the two sets of positioning plates 11 are kept fixed, so that the positioning is firm.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a centering positioner for machining which characterized in that: the automatic feeding device comprises a workbench (1), wherein a guide groove (2) is horizontally formed in the workbench (1), a driving motor (3) and a first bidirectional screw (4) connected with the shaft end of the driving motor (3) are arranged below the workbench (1), the axial direction of the first bidirectional screw (4) is parallel to the guide direction of the guide groove (2), two groups of clamping arms (5) respectively in threaded connection with the bidirectional threaded section of the first bidirectional screw (4) are arranged in the guide groove (2) in a sliding manner, clamping plates (6) are elastically connected to the adjacent side surfaces of the two groups of clamping arms (5), and a plurality of bull eye balls (7) are arranged on the adjacent side surfaces of the two groups of clamping plates (6);

the upper end face middle part of the workbench (1) is provided with a laid bottom plate (8), the bottom plate (8) is provided with a guide vertical sliding groove (9) and an open groove (10) of a guide and a guide groove (2), the bottom plate (8) is symmetrically provided with two groups of positioning plates (11) which are respectively connected with the sliding groove (9) in a sliding manner, a second bidirectional screw rod (12) which is vertical to the guide of the guide groove (2) in the axial direction is horizontally arranged in the open groove (10), one shaft end of the second bidirectional screw rod (12) penetrates through the side wall of the bottom plate (8) and is provided with a rocking handle (13), a brake wheel (14) is coaxially arranged at the shaft end part, a screw nut (24) is connected to the bidirectional screw thread section of the second bidirectional screw rod (12), the two groups of screw nuts (24) are respectively connected with the two groups of positioning plates (11), and a driving cylinder (15) is arranged on the side face of the workbench (1) adjacent to the brake wheel (14), the driving end of the driving air cylinder (15) is provided with a brake pad (16) which is matched and abutted with the arc-shaped excircle of the brake wheel (14).

2. The centering and positioning device for machining according to claim 1, characterized in that two groups of guide rods (17) vertically penetrating through the clamping arm (5) are horizontally arranged on the sides of the clamping plate (6) adjacent to the clamping arm (5), a limiting block (18) is arranged at one end of each guide rod (17) penetrating through the clamping arm (5), and a spring (19) positioned between the clamping plate (6) and the clamping arm (5) is sleeved on a body of each guide rod (17).

3. The centering and positioning device for machining according to claim 1, wherein nut seats (20) are symmetrically arranged at the tops of two groups of positioning plates (11), an axially vertical screw rod (21) is connected to each nut seat (20) in a threaded manner, a pressing plate (22) is arranged at the lower end of each screw rod (21), and a hand wheel (23) is arranged at the upper end of each screw rod.

4. The centering and positioning device for machining according to claim 1, wherein the driving motor (3) is an electromagnetic power-off brake motor.