CN216442427U - Quick-change positioning and clamping tool - Google Patents

Abstract

The utility model relates to the technical field of positioning and clamping, in particular to a quick-change positioning and clamping tool which comprises a fixing frame, a lifting frame, a fixed rod, rotating rods, a pressing rod and a clamping part.

Description

Quick-change positioning and clamping tool

Technical Field

The utility model relates to the technical field of positioning and clamping, in particular to a quick-change positioning and clamping tool.

Background

In the process of assembling the workpieces, one workpiece is generally required to be positioned and fixed, and then the rest parts are assembled on the fixed workpiece, when the workpieces are clamped and fixed, the workpieces may move upwards due to the shape of the workpieces or other factors, so that the object cannot be accurately positioned in the longitudinal direction, and the conventional positioning and clamping tool can only be used for positioning on a horizontal plane, so that the problem of longitudinal movement of the object cannot be solved.

Disclosure of Invention

The utility model aims to provide a quick-change positioning and clamping tool which can press down an object to avoid the object from moving upwards in the clamping process.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a quick change location centre gripping frock includes the mount, the crane, the dead lever, the dwang, clamping part and clamp part, the crane passes through pneumatic cylinder I and installs on deciding the frame, through I drive crane longitudinal movement of pneumatic cylinder, dead lever fixed connection is at the lower extreme of crane, two dwangs all articulate on the crane, all be equipped with the torsional spring between two dwangs and the crane, the dead lever is located the rotation opposite direction of two dwangs of restriction between two dwangs, all rotate on two dwangs and be connected with the clamping part, the clamp part is connected on the mount.

Clamping part includes band pulley axle, the nut, the lead screw, pinch plate and auxiliary roll, and the band pulley axle rotates to be connected in the upper end of mount, and two nuts all rotate to be connected on the mount, through belt transmission between band pulley axle and two nuts, two equal sliding connection of lead screw are on the mount, two lead screws respectively with two nut screw thread transmission, the moving direction of two lead screws is opposite, two lead screws respectively fixed connection on two pinch plates, all transversely rotate on two pinch plates and be connected with a plurality of auxiliary rolls.

The utility model provides a quick change location centre gripping frock still includes clamping frame and auxiliary roll II, and two clamping frames are installed on the mount through two pneumatic cylinders II respectively, carries out lateral shifting through two clamping frames of II drive of two pneumatic cylinders, and two clamping frames's moving direction is opposite, all rotates on two clamping frames to be connected with two auxiliary roll II.

The utility model provides a quick change location centre gripping frock still includes the backup pad, the slide rail, carriage and two-way lead screw, two backup pads all are located the mount, the even fixed connection of a plurality of slide rails is at the lower extreme of mount, two backup pads sliding connection respectively is between a plurality of slide rails, two backup pads longitudinal sliding connection respectively is on two carriages, the equal lateral sliding connection of two carriages is at the lower extreme of mount, the moving direction of two carriages is opposite, two-way lead screw all rotate the lower extreme of connecting at the mount, two carriages all with two-way lead screw thread drive.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings and specific embodiments.

Figure 1 is a schematic view of the crane structure;

FIG. 2 is a schematic view of a clamp plate construction;

FIG. 3 is a schematic view of the construction of the auxiliary roller;

FIG. 4 is a schematic view of a clamping frame structure;

FIG. 5 is a schematic view of a support plate construction;

FIG. 6 is a schematic view of a driving frame structure;

fig. 7 is a schematic view of the overall structure of the device.

In the figure:

a fixed frame 1; a lifting frame 2; a fixing rod 3; rotating the rod 4; a hold down bar 5; a pulley shaft 6; a nut 7; a lead screw 8; a clamping plate 9; an auxiliary roller 10; a clamping frame 11; an auxiliary roller II 12; a support plate 13; a slide rail 14; a drive frame 15; and a lead screw II 16.

Detailed Description

As shown in fig. 1;

a quick-change positioning clamping tool comprises a fixing frame 1, a lifting frame 2, a fixed rod 3, rotary rods 4, a pressing rod 5 and a clamping part, wherein the lifting frame 2 is installed on the fixing frame 1 through a hydraulic cylinder I, the lifting frame 2 is driven to longitudinally move through the hydraulic cylinder I, the fixed rod 3 is fixedly connected to the lower end of the lifting frame 2, the two rotary rods 4 are both hinged to the lifting frame 2, torsion springs are arranged between the two rotary rods 4 and the lifting frame 2, the fixed rod 3 is positioned between the two rotary rods 4 and limits the opposite rotation directions of the two rotary rods 4, the two rotary rods 4 are both rotatably connected with the pressing rod 5, and the clamping part is connected to the fixing frame 1;

when the object is normally clamped, because the shape of the object is irregular, the object is easy to move upwards after being clamped, so that the object cannot be accurately positioned, the device can press down the object after the object is clamped, so that the object can be accurately positioned while being sufficiently fixed, the object is prevented from moving in the vertical direction, the object is clamped and fixed through the clamping part, after the object is clamped, the two rotating rods 4 are driven to move downwards through the downward movement of the lifting frame 2, the two rotating rods 4 are contacted with the object after moving downwards, the object is pressed down through the two rotating rods 4, so that the object is accurately positioned, meanwhile, the two rotating rods 4 can rotate towards two ends after being incapable of moving downwards continuously, so that the object is sufficiently pressed down, and the contact area between the two rotating rods 4 and the upper end surface of the object is larger, the object is prevented from inclining in the process of being pressed down, and the two rotating rods 4 are driven to reset through the acting force of the torsion spring;

preferably, all rotate on two dwang 4 and be connected with compressing tightly pole 5, compress tightly pole 5 and object contact through two, at this moment when two dwang 4 rotate to both ends, two compress tightly pole 5 will rotate on the object up end to reduce the friction between two dwang 4 and the object, and then noise abatement's production, the reduction object that can also be further receives the friction and decreases, thereby carries out abundant protection to the object.

As shown in fig. 2-3;

the clamping part comprises a pulley shaft 6, nuts 7, lead screws 8, clamping plates 9 and auxiliary rollers 10, the pulley shaft 6 is rotatably connected to the upper end of the fixing frame 1, the two nuts 7 are rotatably connected to the fixing frame 1, the pulley shaft 6 and the two nuts 7 are in belt transmission, the two lead screws 8 are slidably connected to the fixing frame 1, the two lead screws 8 are in threaded transmission with the two nuts 7 respectively, the moving directions of the two lead screws 8 are opposite, the two lead screws 8 are fixedly connected to the two clamping plates 9 respectively, and the two clamping plates 9 are transversely and rotatably connected with the auxiliary rollers 10;

the pulley shaft 6 is driven by a speed reducing motor II to enable the pulley shaft 6 to rotate;

the object is clamped through the clamping part, the two nuts 7 are driven to rotate through the rotation of the belt wheel shaft 6, the two nuts 7 drive the two lead screws 8 to move towards the middle, the two lead screws 8 move towards the middle to drive the two clamping plates 9 to move towards the middle, and the object is accurately positioned in the front and rear directions while the object is fixed by the two clamping plates 9 moving towards the middle;

preferably, all transversely rotate on two grip blocks 9 and be connected with a plurality of auxiliary rollers 10, at this moment when pressing from both sides tight the object, through a plurality of auxiliary rollers 10 and object contact, can not influence the stability to object positioning clamping process like this, and when two pressure bars 5 pushed down the object, the object moves down between a plurality of auxiliary rollers 10 for moving down between two grip blocks 9, can make a plurality of auxiliary rollers 10 rotate, thereby make the object move down more smoothly, avoid the object to receive the damage when the noise reduction.

As shown in fig. 4;

the quick-change positioning and clamping tool further comprises clamping frames 11 and auxiliary rollers II 12, the two clamping frames 11 are respectively installed on the fixing frame 1 through two hydraulic cylinders II, the two clamping frames are driven to transversely move through the two hydraulic cylinders II, the moving directions of the two clamping frames 11 are opposite, and the two clamping frames 11 are respectively and rotatably connected with the two auxiliary rollers II 12;

the object is positioned in the left-right direction by moving the two clamping frames 11 to the middle;

preferably, all rotate on two clamping frame 11 and be connected with two auxiliary roller II 12, carry out the ascending location of left and right sides to the object through a plurality of auxiliary roller II 12 like this, after the ascending location of left and right sides is accomplished, combine a last embodiment, when two clamp plate 9 carry out the ascending location of fore-and-aft direction to the object, the object still need carry out the ascending motion of fore-and-aft direction, rotate through a plurality of auxiliary roller II 12, reduce the friction between object and two clamping frame 11, avoid the object to receive the damage simultaneously.

As shown in fig. 5-7;

the quick-change positioning and clamping tool further comprises supporting plates 13, sliding rails 14, driving frames 15 and two-way lead screws 16, wherein the two supporting plates 13 are located in the fixed frame 1, the sliding rails 14 are uniformly and fixedly connected to the lower end of the fixed frame 1, the two supporting plates 13 are respectively and slidably connected between the sliding rails 14, the two supporting plates 13 are respectively and longitudinally slidably connected to the two driving frames 15, the two driving frames 15 are respectively and slidably connected to the lower end of the fixed frame 1 in a transverse direction, the moving directions of the two driving frames 15 are opposite, the two-way lead screws 16 are respectively and rotatably connected to the lower end of the fixed frame 1, and the two driving frames 15 are in threaded transmission with the two-way lead screws 16;

the two bidirectional screw rods 16 are connected through a belt, the fixing frame 1 is fixedly connected with a speed reducing motor, one bidirectional screw rod 16 is fixedly connected to an output shaft of the speed reducing motor, and the two bidirectional screw rods 16 are driven to rotate through the speed reducing motor;

in order to operate the lower end face of the object, the object is normally required to be turned, but the position of the object is easily changed after the object is turned, and meanwhile, the turning process wastes time and parts on the object are easily fallen off, the device can support the object through the two support plates 13, so that the object is positioned on the two support plates 13, when the lower end of the object is required to be operated, the two support plates 13 can move to two sides along the plurality of slide rails 14, and the lower end face of the object is exposed to facilitate operation;

preferably, the plurality of slide rails 14 are all composed of horizontal rails and inclined rails, at this time, when the two support plates 13 move to both sides along the plurality of slide rails 14, the two support plates 13 move downwards and move to both sides so as to move to both ends to expose the lower ends of the objects, and when the two support plates 13 are reset, the two support plates 13 move inwards and then move upwards so as to keep the two support plates 13 and the fixing frame 1 horizontal, so that subsequent objects can be clamped and positioned conveniently;

preferably, two-way lead screws 16 rotate to drive two driving frames 15 to move towards two sides, two driving frames 15 move towards two sides to drive two supporting plates 13 to move towards two sides, and two supporting plates 13 can respectively move longitudinally relative to two driving frames 15, so that the two supporting plates 13 are prevented from rotating, and the moving process of the two supporting plates 13 is more stable and smooth.

Claims (10)

1. The utility model provides a quick change location centre gripping frock, includes mount (1) and clamping part, its characterized in that: install crane (2) through pneumatic cylinder I on mount (1), articulated on crane (2) have two dwang (4), are fixed with dead lever (3) on crane (2), and dead lever (3) are located between two dwang (4), and clamping part connects on mount (1).

2. The quick-change positioning and clamping tool according to claim 1, characterized in that: two all rotate on dwang (4) and be connected with compressing tightly pole (5).

3. The quick-change positioning and clamping tool according to claim 1, characterized in that: the clamping part comprises a lead screw (8) and clamping plates (9), the two clamping plates (9) are respectively fixed on the two lead screws (8), and the two lead screws (8) are all connected on the fixing frame (1) in a sliding mode.

4. The quick-change positioning and clamping tool according to claim 3, characterized in that: a plurality of auxiliary rollers (10) are transversely and rotatably connected on the two clamping plates (9).

5. The quick-change positioning and clamping tool according to claim 3, characterized in that: the clamping part further comprises a belt wheel shaft (6) and nuts (7), the two nuts (7) are in belt transmission with the belt wheel shaft (6), the belt wheel shaft (6) is rotatably connected to the fixing frame (1), and the two nuts (7) are in thread transmission with the two lead screws (8) respectively.

6. The quick-change positioning and clamping tool according to claim 5, characterized in that: the clamping device also comprises two clamping frames (11) which are respectively arranged on the fixed frame (1) through two hydraulic cylinders II.

7. The quick-change positioning and clamping tool according to claim 6, characterized in that: two auxiliary rollers II (12) are longitudinally and rotatably connected to the two clamping frames (11).

8. The quick-change positioning and clamping tool according to claim 1, characterized in that: the fixing frame (1) is further fixedly connected with a plurality of sliding rails (14), and two supporting plates (13) are respectively connected between the plurality of sliding rails (14) in a sliding mode.

9. The quick-change positioning and clamping tool according to claim 8, characterized in that: the sliding rails (14) are all composed of horizontal rails and inclined rails.

10. The quick-change positioning and clamping tool according to claim 9, characterized in that: the device also comprises two driving frames (15) which are connected on the fixed frame (1) in a sliding manner, and the two supporting plates (13) are respectively connected on the two driving frames (15) in a longitudinal sliding manner.

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