CN220112620U - A positioning and clamping mechanism - Google Patents

Abstract

The utility model discloses a positioning and clamping mechanism, which includes a mounting seat. A rectangular chamber is provided on the front of the mounting seat. A positioning seat is fixedly installed inside the mounting seat. A clamping seat is slidably installed in the rectangular chamber. The mounting seat A first pneumatic telescopic rod is fixedly installed on the top of the first pneumatic telescopic rod. The telescopic end of the first pneumatic telescopic rod is fixedly connected to the upper surface of the clamping seat. The lower surface of the clamping seat is provided with a semicircular groove, and the upper surface of the positioning seat is provided with a V-shaped groove. This positioning and clamping mechanism is provided with a positioning seat and a clamping seat. The clamping seat presses down on the surface of the part to achieve positioning and clamping. The welding gun moves down together with the clamping seat and contacts the surface of the part for welding. When the clamping seat When the gap is raised, the parts are held tightly by the rolling shaft and the pressing roller. The stepper motor is used to drive the rolling shaft to rotate, thereby realizing the rotation and direction change of the parts without the need for manual twisting and turning operations, achieving the automatic rotation of parts for face-changing welding. Effect.

Description

Positioning and clamping mechanism

Technical Field

The utility model relates to the technical field of welding clamps, in particular to a positioning and clamping mechanism.

Background

In the production process of the sensor, a shell and a base are well mortise pressed in advance and then are subjected to spot welding, a special positioning and clamping mechanism is generally needed for positioning and fixing the sensor, and related prior art is provided with a positioning and clamping mechanism of a sensor seat, such as a patent application number 2019200450055.2, which belongs to the field of sensor auxiliary equipment.

The sensor still has some defects in the actual use process, specifically, the sensor is not only required to be clamped and fixed in the welding process, but also required to be rotated and adjusted to be aligned with welding guns in different directions, the annular array of multi-layer spot welding pads are formed at the joint, then the common clamping mechanism is required to manually rotate the sensor, the operation is troublesome, the efficiency is low, the welding point is uneven, and the welding quality of a product is affected.

Disclosure of Invention

The present utility model is directed to a positioning and clamping mechanism, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a location fixture, includes the mount pad, the front of mount pad is provided with the rectangle cavity, and the inside fixed mounting of mount pad has the positioning seat, and slidable mounting has the mount pad in the rectangle cavity, and the top fixed mounting of mount pad has a pneumatic telescopic link, and the flexible end and the last fixed surface of mount pad of a pneumatic telescopic link are connected.

The lower surface of grip slipper has seted up semicircle recess, and V style of calligraphy recess has been seted up to the upper surface of positioning seat, and V style of calligraphy recess both sides inner wall rotation is installed two roll axis, and the rear side fixed mounting of mount pad has step motor, and step motor passes through gear train drive two roll axis syntropy rotation.

Preferably, the gear set comprises two first gears and a second gear, wherein the two first sides are fixedly arranged at the end parts of the two rolling shafts, the second gear is fixedly arranged on a rotating shaft of the stepping motor, and the second gear is meshed with the two first gears for transmission.

Preferably, the inside slidable mounting of grip slipper has to tightly the roller subassembly, to tightly the roller subassembly including the roller bed, compress tightly roller bearing, guide bar and pretension spring, compress tightly the roller bearing and rotate the downside of installing at the roller bed, guide bar fixed mounting has the upside at the roller bed, and the guide bar slides and inserts on the grip slipper, pretension spring cover is established on the surface of guide bar and is supported tightly the roller bed downwards.

Preferably, a first threaded hole is formed in the front face of the clamping seat, and a detachable welding gun rack is installed at the first threaded hole.

Preferably, the inner rear wall of the mounting seat is fixedly provided with a second pneumatic telescopic rod, the telescopic end of the second pneumatic telescopic rod is fixedly provided with a material returning disc, the end surface of the material returning disc is provided with a second threaded hole, and a thickening pad is arranged at the second threaded hole in a threaded manner.

Preferably, two side walls of the rectangular cavity of the mounting seat are provided with guide sliding grooves which are vertically arranged, two sides of the clamping seat are fixedly provided with sliding blocks, and the sliding blocks slide along the direction of the guide sliding grooves.

Preferably, a connecting plate is fixedly arranged on the lower surface of the mounting seat, and a plurality of waist-shaped notches are formed in the connecting plate.

Advantageous effects

The utility model provides a positioning and clamping mechanism, which has the following beneficial effects:

1. this location fixture through setting up positioning seat and grip slipper, and the grip slipper pushes down on the part surface, realizes location and clamp, and welder moves down together with the grip slipper, welds with part surface contact, and when grip slipper lifting clearance, the part is in by the roll axis and compresses tightly the roller bearing and hold tightly the state, utilizes step motor drive roll axis to rotate, realizes the rotation direction of changing the part, need not the manual work and goes the operation of twisting, reaches the effect that the autogiration part trades face welded.

2. This location fixture carries out centre gripping and location through setting up upper and lower direction positioning seat and grip slipper to the welding work piece, sets up the material returning disc simultaneously in the rear side, pushes away through the flexible of the pneumatic telescopic link of second, can realize that the welding is accomplished automatic material returning, but install the thickening pad moreover on material returning disc, select suitable thickening pad to be convenient for control centre gripping degree of depth to realize the location of supplementary axial degree of depth.

Drawings

FIG. 1 is a schematic view of the front side perspective structure of the present utility model;

FIG. 2 is a schematic view of the rear side perspective of the present utility model;

FIG. 3 is a schematic elevational view of the present utility model;

fig. 4 is a schematic side sectional view of the present utility model.

In the figure: the device comprises a mounting seat 1, a positioning seat 2, a clamping seat 3, a first pneumatic telescopic rod 4, a stepping motor 5, a rolling shaft 6, a first gear 7, a second gear 8, a rolling shaft seat 9, a pressing rolling shaft 10, a guide rod 11, a pre-tightening spring 12, a second pneumatic telescopic rod 13, a material returning disc 14, a second threaded hole 15, a thickening pad 16, a guide chute 17, a connecting plate 18, a sensor to be processed 19, a welding gun 20 and a first threaded hole 21.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a location fixture, including mount pad 1, the front of mount pad 1 is provided with rectangular chamber, the inside fixed mounting of mount pad 1 has positioning seat 2, slidable mounting has grip slipper 3 in the rectangular chamber, specifically, the direction spout 17 of vertical setting is opened to rectangular chamber both sides wall of mount pad 1, the both sides fixed mounting of grip slipper 3 has the sliding block, the sliding block slides along the direction of direction spout 17, the top fixed mounting of mount pad 1 has first pneumatic telescopic link 4, the flexible end of first pneumatic telescopic link 4 is connected with the last fixed surface of grip slipper 3.

A semicircular groove is formed in the lower surface of the clamping seat 3, a V-shaped groove is formed in the upper surface of the positioning seat 2, two rolling shafts 6 are rotatably mounted on the inner walls of two sides of the V-shaped groove, a stepping motor 5 is fixedly mounted on the rear side of the mounting seat 1, and the stepping motor 5 drives the two rolling shafts 6 to rotate in the same direction through a gear set.

The gear set includes two first gears 7 and a second gear 8, wherein the two first sides are fixedly installed at the ends of the two rolling shafts 6, the second gear 8 is fixedly installed on the rotating shaft of the stepping motor 5, and the second gear 8 is simultaneously meshed with the two first gears 7 to drive the two rolling shafts 6 to rotate in the same direction.

The inside slidable mounting of grip slipper 3 supports tight roller assembly, supports tight roller assembly and includes roller bed 9, compresses tightly roller 10, guide bar 11 and pretension spring 12, compresses tightly roller 10 rotation and installs in the downside of roller bed 9, and guide bar 11 fixed mounting has in the upside of roller bed 9, and guide bar 11 slides and inserts on grip slipper 3, and pretension spring 12 cover is established on the surface of guide bar 11 and is supported tight roller bed 9 downwards.

The first pneumatic telescopic rod 4 extends, the clamping seat 3 is pressed down, and the workpiece is clamped and welded by the positioning seat 2 and the clamping seat 3.

The second pneumatic telescopic rod 13 is fixedly installed on the inner rear wall of the installation seat 1, the material returning tray 14 is fixedly installed at the telescopic end of the second pneumatic telescopic rod 13, the second threaded hole 15 is formed in the end face of the material returning tray 14, the thickening pad 16 is installed at the position of the second threaded hole 15 in a threaded mode, the thickening pad 16 can be installed on the material returning tray 14, the clamping depth can be conveniently controlled by selecting a proper thickening pad 16, therefore, the auxiliary axial depth positioning is achieved, and material returning is achieved through telescopic pushing of the second pneumatic telescopic rod 13.

The mechanism clamps and positions the welding workpiece by arranging the positioning seat 2 and the clamping seat 3 in the vertical direction, and simultaneously sets the material returning disc 14 at the rear side, and can realize automatic material returning after welding is finished by the telescopic pushing of the second pneumatic telescopic rod 13.

According to the application method of the embodiment, a connecting plate 18 is fixedly arranged on the lower surface of a mounting seat 1, a plurality of waist-shaped notches are formed in the connecting plate 18, the mechanism can be fixed on a welding workbench, a first threaded hole 21 is formed in the front surface of a clamping seat 3, a detachable welding gun rack is arranged at the first threaded hole 21, a welding gun 20 is arranged on the welding gun rack, as shown in fig. 4, the clamping seat 3 is pressed down by a first pneumatic telescopic rod 4, the inner wall of a semicircular groove of the clamping seat 3 is tightly attached to the outer surface of a sensor 19 to be machined, clamping fixation is achieved through static friction and clamping force, a welding gun 20 moves down together with the clamping seat 3, the welding gun 20 contacts with the surface of a part to be machined, the first pneumatic telescopic rod 4 is contracted, the clamping seat 3 is separated from the sensor 19 to be machined, meanwhile, the welding gun 20 is lifted and separated, at the moment, a pressing roller 10 is still pressed on the surface of the sensor 19 to be machined, a workpiece is prevented from shaking, then the sensor 19 is rotated by utilizing the rotation of a rolling shaft 6, the direction is switched to different directions so as to be welded, the clamping seat 3 is pressed down again, finally, and the workpiece is clamped by the clamping seat 3, and finally, the lifting of the workpiece is achieved through the second pneumatic telescopic rod 13.

This location fixture through setting up positioning seat 2 and grip slipper 3, grip slipper 3 pushes down on the part surface, realizes location and clamp, welder 20 moves down together with grip slipper 3, welds with part surface contact, when grip slipper 3 lifting clearance, waits to process sensor 19 and is in by roll axis 6 and compress tightly the state of holding down roller bearing 10, utilizes step motor 5 drive roll axis 6 to rotate, realizes waiting to process the rotation direction of changing of sensor 19, need not the manual work and goes the operation of twisting the change, reaches automatic rotating part and trades face welded effect.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Positioning and clamping mechanism, including mount pad (1), its characterized in that: the front of the mounting seat (1) is provided with a rectangular cavity, a positioning seat (2) is fixedly arranged in the mounting seat (1), a clamping seat (3) is slidably arranged in the rectangular cavity, the top end of the mounting seat (1) is fixedly provided with a first pneumatic telescopic rod (4), and the telescopic end of the first pneumatic telescopic rod (4) is fixedly connected with the upper surface of the clamping seat (3);

the lower surface of grip slipper (3) has seted up semicircle recess, and V style of calligraphy recess has been seted up to the upper surface of positioning seat (2), and V style of calligraphy recess both sides inner wall rotation is installed two roll axis (6), and the rear side fixed mounting of mount pad (1) has step motor (5), and step motor (5) pass through gear train drive two roll axis (6) syntropy rotation.

2. A positioning and clamping mechanism as recited in claim 1, further comprising: the gear set comprises two first gears (7) and a second gear (8), wherein two first sides are fixedly arranged at the end parts of the two rolling shafts (6), the second gear (8) is fixedly arranged on a rotating shaft of the stepping motor (5), and the second gear (8) is meshed with the two first gears (7) for transmission.

3. A positioning and clamping mechanism as claimed in claim 2, wherein: the inside slidable mounting of grip slipper (3) is supported tight roller component, support tight roller component and include roller bed (9), compress tightly roller (10), guide bar (11) and pretension spring (12), compress tightly roller (10) and rotate the downside of installing at roller bed (9), guide bar (11) fixed mounting has the upside at roller bed (9), and guide bar (11) slip inserts grip slipper (3) on, pretension spring (12) cover is established on the surface of guide bar (11) and is supported tight roller bed (9) downwards.

4. A positioning and clamping mechanism as claimed in claim 3, wherein: the front of the clamping seat (3) is provided with a first threaded hole (21), and a detachable welding gun frame is installed at the first threaded hole (21).

5. A positioning and clamping mechanism as recited in claim 4, wherein: the inner rear wall of the mounting seat (1) is fixedly provided with a second pneumatic telescopic rod (13), the telescopic end of the second pneumatic telescopic rod (13) is fixedly provided with a material returning disc (14), the end face of the material returning disc (14) is provided with a second threaded hole (15), and a thickening pad (16) is arranged at the position of the second threaded hole (15) in a threaded mode.

6. A positioning and clamping mechanism according to any of claims 1-5, wherein: the two side walls of the rectangular cavity of the mounting seat (1) are provided with guide sliding grooves (17) which are vertically arranged, two sides of the clamping seat (3) are fixedly provided with sliding blocks, and the sliding blocks slide along the direction of the guide sliding grooves (17).

7. A positioning and clamping mechanism as recited in claim 6, wherein: the lower surface of the mounting seat (1) is fixedly provided with a connecting plate (18), and a plurality of waist-shaped notches are formed in the connecting plate (18).