CN219169284U - Quick die clamping tool of bending machine - Google Patents

Abstract

The utility model relates to a die quick-mounting clamp of a bending machine. The bending machine comprises a fixed seat, a fixed seat and a fixed seat, wherein the fixed seat is fixed on the bending machine; the rear barrier strip is fixed on the fixed seat; the front pressing block is positioned at the front side of the rear barrier strip; and the eccentric wheel is in running fit on the fixed seat, when the eccentric wheel rotates circumferentially, the protruding side of the eccentric wheel can gradually abut against the front pressing block and push the front pressing block to move towards one side of the rear barrier strip, and a space formed between the front pressing block and the rear barrier strip is used for clamping the upper die or the lower die. According to the utility model, the distance between the front pressing block and the rear barrier strip can be adjusted by manually rotating the angle of the eccentric wheel, so that the clamping or loosening of the die is realized. And because the eccentric wheel can realize the switching of the maximum and minimum feeding only by rotating 180 degrees, the bending machine with the device has fewer actions required by the elastic clamp when the die is replaced, and the die replacing efficiency can be greatly improved.

Description

Quick die clamping tool of bending machine

Technical Field

The utility model relates to a clamp, in particular to a die quick-mounting clamp of a bending machine.

Background

Fireproof doors are doors that meet the requirements of fire resistance stability, integrity and thermal insulation over a period of time. The fire-proof partition is arranged between fire-proof partitions, evacuation stairwells, vertical shafts and the like and has certain fire resistance. The common fire door housing materials are mainly 5 kinds, namely steel, steel-wood structure, stainless steel, aluminum alloy and copper. The fire door shell made of metal needs to be subjected to bending treatment for many times in production and manufacture, and a bending machine is needed. Because the bending is needed for a plurality of times, the angle and the outline of each bending are different, and therefore, a plurality of bending dies are needed to be replaced. At present, a die on a bending machine is generally clamped and fixed through a clamp, and the clamp is adjusted in tightness by rotating a plurality of bolts. Therefore, each time the mold is replaced, a worker is required to repeatedly tighten and loosen a plurality of bolts, each bolt is required to rotate forwards and backwards for a plurality of times, and the required time is long.

Disclosure of Invention

The utility model provides a die quick-mounting clamp of a bending machine; the problem of there is the bender to take time and energy with the retooling in the prior art is solved.

The technical problems of the utility model are mainly solved by the following technical proposal: the die quick-assembly clamp of the bending machine comprises a fixing seat, wherein the fixing seat is fixed on the bending machine; the rear barrier strip is fixed on the fixed seat; the front pressing block is positioned at the front side of the rear barrier strip; and the eccentric wheel is in running fit on the fixed seat, when the eccentric wheel rotates circumferentially, the protruding side of the eccentric wheel can gradually abut against the front pressing block and push the front pressing block to move towards one side of the rear barrier strip, and a space formed between the front pressing block and the rear barrier strip is used for clamping the upper die or the lower die. According to the utility model, the distance between the front pressing block and the rear barrier strip can be adjusted by manually rotating the angle of the eccentric wheel, so that the clamping or loosening of the die is realized. And because the eccentric wheel can realize the switching of the maximum and minimum feeding only by rotating 180 degrees, the bending machine with the device has fewer actions required by the elastic clamp when the die is replaced, and the die replacing efficiency can be greatly improved.

Further, the sliding seat is arranged on the fixing seat and is positioned in the front side area of the rear barrier strip in a sliding fit mode, the sliding seat is arranged between the eccentric wheel and the front pressing block, the sliding axial direction of the sliding seat is perpendicular to the rear barrier strip, a rubber block is arranged on one side, close to the rear barrier strip, of the sliding seat, and the front pressing block is attached to the rubber block. Because of the existence of the rubber block, the feeding amount of the eccentric wheel pushing the sliding seat in the locking process can be slightly larger than the actual feeding amount of the front pressing block, and the difference between the feeding amounts is converted into compression deformation of the rubber block, so that the rigid impact between all the parts can be reduced.

Further, the sliding seat is provided with a sliding rail parallel to the rear barrier strip, the sliding rail is provided with a sliding block in sliding fit, the sliding block is provided with an arc groove adapting to the profile of the eccentric wheel, and the rotating shaft of the eccentric wheel is arranged vertically. The design is that for the coaxial cooperation of eccentric wheel and circular arc groove, the contact surface between the two is bigger, avoids the too little and the too big partial stress of slider and eccentric wheel that leads to between eccentric wheel and the slider, and partial stress is too big causes the damage to part itself, reduces the life of part by a wide margin.

Furthermore, the bearing bush is arranged in the arc groove, and has excellent wear resistance.

Furthermore, at least two rubber blocks are uniformly arranged on the sliding seat, and a plurality of front pressing blocks can be synchronously driven to synchronously move through a single sliding seat, so that the working procedures required for replacing the die are further simplified; the arc groove is positioned in the middle of the sliding seat, and the uniform stress of each front pressing block is ensured.

Further, a positioning piece for fixing the rotating shaft of the eccentric wheel is arranged on the fixing seat, a locking pin which is opposite to the circumferential side wall of the eccentric wheel is arranged on the positioning piece in a penetrating mode, a clamping groove which can be clamped with the head of the locking pin is formed in the circumferential side wall of the eccentric wheel, and a pressure spring which pushes the locking pin to reset towards the direction of the eccentric wheel is arranged on the positioning piece. When the eccentric wheel rotates to the maximum feeding amount, the utility model is in a complete clamping state, and the clamping groove on the eccentric wheel is just opposite to the head part of the locking pin, so that the clamping is realized, and the eccentric wheel is prevented from shifting. When the utility model needs to be loosened, the eccentric wheel can be rotated only by pulling the locking pin.

The hexagonal nut is fixedly arranged at the upper end of the rotating shaft of the eccentric wheel, the limiting block is further arranged on the circumferential outer wall of the eccentric wheel, and when the eccentric wheel rotates to the maximum feeding amount, the limiting block is just abutted against the bearing bush.

Therefore, compared with the prior art, the utility model has the following characteristics: 1. according to the utility model, the distance between the front pressing block and the rear barrier strip can be adjusted by manually rotating the angle of the eccentric wheel, so that the clamping or loosening of the die is realized, and the maximum and minimum feeding switching can be realized only by rotating the eccentric wheel by 180 degrees, so that the bending machine provided by the utility model has fewer actions required by the elastic clamp when the die is replaced, and the die replacing efficiency can be greatly improved; 2. the rubber block is arranged between the sliding seat and the front pressing block, and the feeding amount of the eccentric wheel pushing the sliding seat in the locking process can be slightly larger than the actual feeding amount of the front pressing block, and the difference between the feeding amounts is converted into compression deformation of the rubber block, so that the rigid impact between all the parts can be reduced.

Drawings

FIG. 1 is a schematic view of the present utility model in combination with a mold;

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

fig. 3 is a cross-sectional view taken along A-A of fig. 2.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1: referring to fig. 1, 2 and 3, a die quick-assembling fixture of a bending machine is shown, wherein the die is an upper die or a lower die of the bending machine, and comprises a fixing seat 10 which is fixed on the bending machine; a rear barrier 20 fixed on the fixed base; four front press blocks 30 positioned at the front sides of the rear barrier strips; the two eccentric wheels 40 are in a rotating fit on the fixed seat, when the eccentric wheels rotate circumferentially, one protruding side of each eccentric wheel can gradually abut against the front pressing block and push the front pressing block to move towards one side of the rear barrier, and a space formed between the front pressing block and the rear barrier is used for clamping the upper die or the lower die. According to the embodiment, the distance between the front pressing block and the rear barrier strip can be adjusted by manually rotating the angle of the eccentric wheel, so that the clamping or loosening of the die is realized. And because the eccentric wheel can realize the switching of the maximum and minimum feeding only by rotating 180 degrees, the bending machine provided with the embodiment has fewer actions required by the elastic clamp when the die is replaced, and the die replacing efficiency can be greatly improved.

See fig. 1 and 3, the front side area on the fixing base and located on the rear barrier strip is provided with a chute 11, two sliding seats 50 are slidably matched in the chute, the sliding seat is arranged between the eccentric wheel and the front pressing block, the sliding axial direction of the sliding seat is perpendicular to the rear barrier strip, two rubber blocks 51 are symmetrically arranged on one side, close to the rear barrier strip, of the sliding seat, the front pressing block is attached to the rubber blocks, and a positioning rod 52 used for penetrating the rubber blocks and the front pressing block is arranged on the sliding seat. Because of the existence of the rubber block, the feeding amount of the eccentric wheel pushing the sliding seat in the locking process can be slightly larger than the actual feeding amount of the front pressing block, and the difference between the feeding amounts is converted into compression deformation of the rubber block, so that the rigid impact between all the parts can be reduced.

Referring to fig. 1 and 3, a sliding rail 53 parallel to the rear barrier strip is provided on the sliding seat, a sliding block 60 is slidably fitted on the sliding rail, an arc groove 61 adapted to the profile of the eccentric wheel is provided on the sliding block, and the rotating shaft of the eccentric wheel is vertically arranged. The design is that for the coaxial cooperation of eccentric wheel and circular arc groove, the contact surface between the two is bigger, avoids the too little and the too big partial stress of slider and eccentric wheel that leads to between eccentric wheel and the slider, and partial stress is too big causes the damage to part itself, reduces the life of part by a wide margin.

As seen in fig. 3, a bearing bush 62 is provided in the circular arc groove, and the bearing bush has excellent wear resistance.

Referring to fig. 1 and 3, a positioning member 12 for fixing the rotating shaft of the eccentric wheel is arranged on the fixed seat, a locking pin 70 opposite to the circumferential side wall of the eccentric wheel is arranged on the positioning member in a penetrating manner, a clamping groove 41 which can be clamped with the head of the locking pin is arranged on the circumferential side wall of the eccentric wheel, and a pressure spring 80 for pushing the locking pin to reset towards the direction of the eccentric wheel is arranged on the positioning member. When the eccentric wheel rotates to the maximum feeding amount, the embodiment is in a complete clamping state, and the clamping groove on the eccentric wheel is just opposite to the head part of the locking pin, so that the clamping is realized, and the eccentric wheel is prevented from shifting. When the embodiment needs to be released, the eccentric wheel can be rotated only by pulling the locking pin.

Referring to fig. 1 and 3, a hexagonal nut 42 is fixedly arranged at the upper end of the rotating shaft of the eccentric wheel, so that the eccentric wheel can be rotated by a wrench conveniently, and a limiting block 43 is further arranged on the circumferential outer wall of the eccentric wheel, and when the eccentric wheel rotates to the maximum feeding amount, the limiting block is just abutted against the bearing bush.

It will be obvious to those skilled in the art that the present utility model may be varied in a number of ways without departing from the scope of the utility model. All such modifications as would be obvious to one skilled in the art are intended to be included within the scope of this claims.

Claims (7)

1. The utility model provides a mould fast-assembling anchor clamps of bender, the mould is last mould or lower mould of bender, its characterized in that: comprises a fixed seat which is fixed on the bending machine; the rear barrier strip is fixed on the fixed seat; the front pressing block is positioned at the front side of the rear barrier strip; and the eccentric wheel is in running fit on the fixed seat, and when the eccentric wheel rotates circumferentially, the protruding side of the eccentric wheel gradually abuts against the front pressing block and pushes the front pressing block to move towards one side of the rear barrier strip.

2. The die quick-assembly jig of a bending machine according to claim 1, wherein: the sliding seat is arranged on the fixing seat and is positioned in the front side area of the rear barrier strip in a sliding fit mode, the sliding seat is arranged between the eccentric wheel and the front pressing block, the sliding axial direction of the sliding seat is perpendicular to the rear barrier strip, a rubber block is arranged on one side, close to the rear barrier strip, of the sliding seat, and the front pressing block is attached to the rubber block.

3. The die quick-assembly jig of a bending machine according to claim 2, wherein: the sliding seat is provided with a sliding rail parallel to the rear barrier strip, the sliding rail is provided with a sliding block in sliding fit, the sliding block is provided with an arc groove adaptive to the profile of the eccentric wheel, and the rotating shaft of the eccentric wheel is arranged vertically.

4. A die quick assembly jig for a bending machine according to claim 3, wherein: and a bearing bush is arranged in the circular arc groove.

5. A die quick assembly jig for a bending machine according to claim 3, wherein: at least two rubber blocks are uniformly arranged on the sliding seat, and the circular arc groove is positioned in the middle of the sliding seat.

6. The die quick-assembly jig of a bending machine according to claim 1, wherein: the fixing seat is provided with a locating piece for fixing the rotating shaft of the eccentric wheel, the locating piece is provided with a locking pin which is just opposite to the circumferential side wall of the eccentric wheel in a penetrating mode, the circumferential side wall of the eccentric wheel is provided with a clamping groove which can be clamped with the head of the locking pin, and the locating piece is provided with a pressure spring which pushes the locking pin to reset towards the direction of the eccentric wheel.

7. The die quick-assembly jig of a bending machine according to claim 1, wherein: and a hexagonal nut is fixedly arranged at the upper end of the rotating shaft of the eccentric wheel.

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