阅读说明：本技术 一种管端成型机中的换模装置 (Die changing device in pipe end forming machine ) 是由 吴冠鋐 于 2020-07-23 设计创作，主要内容包括：本发明适用于弯管技术领域,提供了一种管端成型机中的换模装置,包括滑块,滑块侧面滑动设置有安装多个竖直排列的模管的滑座,该滑座通过下方的液压缸伸缩推动在滑块中升降滑动,滑座在升降的过程中通过侧面的连板带动滑座上方的挡块进行滑动用于滑座在升降过程中的定位,连板的上下两端分别设置有条形的限位槽,其中下端的限位槽中滑动有滑座侧面的凸柱,该凸柱在竖槽中贯穿并滑动,上端的限位槽滑动有挡块的引导杆；通过对滑座和挡块之间设置可转动滑动的连板,从而对两者形成连动,使得最下方的液压缸既可以作为滑座的升降动力,也可以作为挡块的移动动力,避免了对挡块的移动增设液压缸,优化了结构,避免了结构的臃肿。(The invention is suitable for the technical field of bent pipes, and provides a die changing device in a pipe end forming machine, which comprises a slide block, wherein a slide seat for installing a plurality of vertically arranged die pipes is arranged on the side surface of the slide block in a sliding manner, the slide seat is pushed to lift and slide in the slide block through a hydraulic cylinder below the slide block in a telescopic manner, the slide seat drives a stop block above the slide seat to slide through a connecting plate on the side surface in the lifting process for positioning the slide seat in the lifting process, the upper end and the lower end of the connecting plate are respectively provided with a strip-shaped limiting groove, wherein a convex column on the side surface of the slide seat slides in the limiting groove on the lower end, the convex column penetrates through and slides in a vertical; the connecting plate capable of rotating and sliding is arranged between the sliding seat and the stop block, so that the sliding seat and the stop block are linked, the hydraulic cylinder at the lowest position can be used as the lifting power of the sliding seat and the moving power of the stop block, the hydraulic cylinder is prevented from being additionally arranged for moving the stop block, the structure is optimized, and the structure is prevented from being too thick.)

1. The utility model provides a retooling device in pipe end make-up machine which characterized in that: including slider (1), slider (1) side slip is provided with slide (2) of the mould pipe (3) of a plurality of vertical arrangements of installation, and this slide (2) are in through flexible the promotion of pneumatic cylinder (4) of below in slider (1) the lifting slide, slide (2) are driven through even board (8) of side at the in-process that goes up and down the dog (6) of slide (2) top slide and be used for slide (2) are in the location of lift in-process.

2. The die change apparatus in a pipe end molding machine as claimed in claim 1, wherein: slide (2) are in spout (11) in the T style of calligraphy spout of slider (1), the below fixedly connected with pneumatic cylinder (4) of spout (11), just pneumatic cylinder (4) through the ball bolt (41) of output with ball groove (21) looks spiro union of slide (2) lower surface.

3. The die change apparatus in a pipe end molding machine as claimed in claim 2, wherein: an operation cavity (9) is formed in the side face of the sliding groove (11) of the sliding block (1), the connecting plate (8) is arranged in the operation cavity (9) in a rotating mode, and the operation cavity (9) is communicated with the sliding groove (11) through a vertical groove (12).

4. A die change apparatus in a pipe end forming machine as claimed in claim 3, wherein: the upper end and the lower end of the connecting plate (8) are respectively provided with a strip-shaped limiting groove (81), wherein a convex column (22) on the side surface of the sliding seat (2) slides in the limiting groove (81) on the lower end, the convex column (22) penetrates through the vertical groove (12) and slides, and the limiting groove (81) on the upper end slides with a guide rod (61) of the stop block (6).

5. The die change apparatus in a pipe end molding machine as claimed in claim 4, wherein: the stop block (6) slides in a moving groove (7) formed in the upper surface of the sliding block (1) through the guide rod (61), and a central circular hole of the moving groove (7) is penetrated by a limit pin (5) at the upper end of the sliding seat (2).

6. The die change apparatus in a pipe end molding machine as claimed in claim 5, wherein: the limiting nail (5) comprises a split nail (51) and a sleeve (52) sleeved with the split nail (51), the split nail (51) is divided into an upper half part and a lower half part, and the sleeve (52) is sleeved between the upper half part and the lower half part.

7. The die change apparatus in a pipe end molding machine as claimed in claim 6, wherein: the lower half part of the split nail (51) is screwed in the slotted hole of the sliding seat (2), a pressing rod (53) capable of elastically lifting penetrates through the inner part of the upper half part of the split nail (51), and the lower end of the pressing rod (53) is conical.

8. The die change apparatus in a pipe end molding machine as claimed in claim 7, wherein: the lower end of the pressure lever (53) drives the clamping levers (54) at two sides in the lower half part of the split nail (51) to stretch and retract towards two sides so as to be spliced with the sleeve (52).

9. The die change apparatus in a pipe end molding machine as claimed in claim 1, wherein: the mould pipe (3) is divided into a first pipe (31), a second pipe (32) and a third pipe (33) from top to bottom in sequence.

Technical Field

The invention belongs to the technical field of pipe bending machines, and particularly relates to a die changing device in a pipe end forming machine.

Background

The pipe end forming machine is suitable for machining complicated shapes of pipe ends, has three stations, can automatically change dies, ensures machining precision, can machine dies, pipe contracting and flaring, is provided with a chamfering die at the same time, can complete machining chamfering at one time, can realize flaring, necking, pipe contracting, bulging and rib upsetting of pipe fittings by using different dies, and can adopt manual, inching or automatic machining according to the requirements of users.

The die changing device in the pipe end forming machine in the market at present adopts a plurality of hydraulic cylinders to position the die pipe during moving, and the mode causes the structure to be overstaffed and wasted due to a plurality of hydraulic pressures.

Disclosure of Invention

The invention provides a die changing device in a pipe end forming machine, and aims to solve the problem of a bulky structure caused by the fact that a plurality of hydraulic cylinders are needed for die pipe die changing and positioning.

The die changing device in the pipe end forming machine comprises a sliding block, wherein a sliding seat for mounting a plurality of vertically arranged die pipes is arranged on the side surface of the sliding block in a sliding mode, the sliding seat is pushed to lift and slide in the sliding block through a hydraulic cylinder below the sliding seat in a telescopic mode, and the sliding seat drives a stop block above the sliding seat to slide through a connecting plate on the side surface in the lifting process for positioning the sliding seat in the lifting process.

Preferably, the slide is in the spout in the T style of calligraphy spout of slider, the below fixedly connected with pneumatic cylinder of spout, just the pneumatic cylinder pass through the ball bolt of output with the ball groove looks spiro union of slide lower surface.

Preferably, an operation cavity is formed in the side face of the sliding groove of the sliding block, the connecting plate is arranged in the operation cavity in a rotating mode, and the operation cavity is communicated with the sliding groove through a vertical groove.

Preferably, the upper end and the lower end of the connecting plate are respectively provided with a strip-shaped limiting groove, wherein a convex column on the side surface of the sliding seat slides in the limiting groove on the lower end, the convex column penetrates through and slides in the vertical groove, and a guide rod of the stop block slides in the limiting groove on the upper end.

Preferably, the stop block slides in a moving groove formed in the upper surface of the sliding block through the guide rod, and a central circular hole of the moving groove is penetrated by a limit pin at the upper end of the sliding seat.

Preferably, the stop pin comprises a split pin and a sleeve sleeved with the split pin, the split pin is divided into an upper half part and a lower half part, and the sleeve is sleeved between the upper half part and the lower half part.

Preferably, the lower half part of the split nail is screwed in the slotted hole of the sliding seat, a compression bar capable of elastically lifting penetrates through the inner part of the upper half part of the split nail, and the lower end of the compression bar is conical.

Preferably, the lower end of the pressure lever drives the clamping rods at two sides in the lower half part of the split nail to stretch towards two sides and be connected with the sleeve in an inserting mode.

Preferably, the mold pipe is divided into a first pipe, a second pipe and a third pipe from top to bottom in sequence.

Compared with the prior art, the invention has the beneficial effects that: according to the die changing device in the pipe end forming machine, the connecting plate capable of rotating and sliding is arranged between the sliding seat and the stop block, so that the sliding seat and the stop block are linked, the hydraulic cylinder at the lowest position can be used as the lifting power of the sliding seat and the moving power of the stop block, the hydraulic cylinder is prevented from being additionally arranged for moving the stop block, the structure is optimized, and the structure is prevented from being too heavy.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the operation chamber according to the present invention;

FIG. 3 is a schematic side sectional view of the present invention;

FIG. 4 is a schematic front view of the present invention;

FIG. 5 is a partially enlarged schematic view of FIG. 3;

in the figure: 1. a slider; 11. a chute; 12. a vertical slot; 2. a slide base; 21. a ball groove; 22. a convex column; 3. a mould tube; 31. a first tube; 32. a second tube; 33. a third tube; 4. a hydraulic cylinder; 41. a ball bolt; 5. a limit pin; 51. split nails; 52. a sleeve; 53. a pressure lever; 54. a clamping rod; 6. a stopper; 61. a guide rod; 7. A moving groove; 8. connecting plates; 81. a limiting groove; 9. an operating chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a retooling device in pipe end make-up machine, includes slider 1, and slider 1 side slides and is provided with the slide 2 of the mould pipe 3 of a plurality of vertical arrangements of installation, and this slide 2 is flexible through pneumatic cylinder 4 of below and is promoted the lifting slide in slider 1, and slide 2 slides and is used for the location of slide 2 at the lift in-process through the dog 6 that the even board 8 of side drove the slide 2 top at the in-process that goes up and down.

In this embodiment, in use: firstly, a first pipe 31, a second pipe 32 and a third pipe 33 are installed on a sliding seat 2 through nuts and are aligned with the center of a hole which is accommodated, meanwhile, a hydraulic cylinder 4 is positioned in an original contraction state, the first pipe 33 is molded by one die, after the first die molding is finished, the hydraulic cylinder 4 is started to extend, the sliding seat 2 is pushed by the extension of the hydraulic cylinder 4 to move upwards in a sliding groove 11, a convex column 22 moves upwards along a vertical groove 12 in the process that the sliding seat 2 moves upwards, so that a limiting groove 81 at the lower end of a connecting plate 8 is driven to rotate upwards, the upper end of the connecting plate 8 is driven to rotate downwards, so that a guide rod 61 is driven by the limiting groove 81 at the upper end to move inwards, the guide rod 61 drives a stop block 6 to move from the outermost side to the middle position, meanwhile, a limiting nail 5 at the upper end of the sliding seat 2 abuts against the lowermost position of the stop block 6, after the two-die forming is completed, the pressing rod 53 at the top end of the upper half part of the split nail 51 is extruded by continuously passing through the hydraulic cylinder 4, so that the pressing rod 53 descends in the split nail 51, the lower half part of the pressing rod 53 descends to cause the clamping rods 54 at the two sides to not block, the pressing rod contracts inwards under the action of the spring, the lower half part of the split nail 51 is separated from the sleeve 52, so that the lower half part of the split nail 51 and the sliding seat 2 continue to ascend, the sliding seat 2 ascends, the connecting plate 8 drives the stop block 6 to continue to move inwards to separate from the central circular hole of the moving groove 7, the whole body of the limit nail 5 extends upwards, so that the sliding seat 2 ascends to the highest limit position, the three-die forming of the first pipe 31 is performed, meanwhile, the pressing rod 53 in the limit nail 5 rebounds to push the clamping rod 54 to slide back to the lock hole of the sleeve 52 again, is convenient for the next use.

Further, the sliding seat 2 is provided with a sliding groove 11 in the T-shaped sliding groove 11 of the sliding block 1, a hydraulic cylinder 4 is fixedly connected to the lowest part of the sliding groove 11, and the hydraulic cylinder 4 is in threaded connection with the ball groove 21 on the lower surface of the sliding seat 2 through a ball bolt 41 at the output end.

In this embodiment, the hydraulic cylinder 4 is screwed with the ball slot 21 below the slide 2 through the ball bolt 41 at the output end to fix the slide 2, so that the hydraulic cylinder 4 can drive the slide 2 to replace the lifting control die tube 3 inside the slide 11.

Further, an operation cavity 9 is formed in the side face of the sliding chute 11 of the sliding block 1, a connecting plate 8 is rotatably arranged in the operation cavity 9, and the operation cavity 9 is communicated with the sliding chute 11 through a vertical groove 12.

In the embodiment, the connecting plate 8 converts the movement of the sliding seat 2 in the original vertical direction into the movement power of the stop block 6 in the horizontal direction, and the two are linked, so that the power part is saved.

Furthermore, the upper and lower ends of the connecting plate 8 are respectively provided with a strip-shaped limiting groove 81, wherein the convex column 22 on the side surface of the slide carriage 2 slides in the limiting groove 81 at the lower end, the convex column 22 runs through and slides in the vertical groove 12, and the guiding rod 61 of the stop block 6 slides in the limiting groove 81 at the upper end.

In this embodiment, the strip-shaped limiting grooves 81 at the upper and lower ends of the connecting plate 8 are used for avoiding unnecessary guiding, so that the sliding seat 2 and the stop block 6 only need to move according to the originally planned line, the sliding block 1 only needs to lift up and down along the vertical groove 12 in the vertical direction, and the stop block 6 only needs to move left and right along the moving groove 7.

Furthermore, the stopper 6 slides in a moving groove 7 formed on the upper surface of the slider 1 through a guide rod 61, and a central circular hole of the moving groove 7 is penetrated by a limit pin 5 at the upper end of the slider 2.

In the present embodiment, a circular hole is provided at the center of the moving groove 7 for the stop pin 5 to pass through, so that a space is provided below for the slide 2 to ascend to the limit position for the three-die molding of the first pipe 31, and a space for ascending is also provided for the recovery of the stop pin 5.

Further, the limit nail 5 comprises a split nail 51 and a sleeve 52 sleeved with the split nail 51, the lower half part of the split nail 51 is screwed in the groove hole of the slide base 2, a liftable pressure lever 53 penetrates through the inside of the upper half part of the split nail 51, and the lower end of the pressure lever 53 drives the clamping rods 54 at two sides in the lower half part of the split nail 51 to stretch and contract towards two sides to be spliced with the sleeve 52.

In the present embodiment, the lower half part of the split nail 51 is screwed to the upper end of the slide base 2, so that the limit nail 5 is fixed to the slide base 2 for the second tube 32 to be molded and limited, the upper part of the split nail 51 accommodates the compression rod 53 with elastic lifting, the upper end of the compression rod 53 protrudes out of the upper half part of the split nail 51, the lower half part of the compression rod 53 is triangular, the inclined surfaces at both sides abut against the end of the clamping rod 54, the clamping rod 54 is telescopic in the lower half part of the split nail 51 to lock the sleeve 52, and the sleeve 52 defines the height of the upper half part of the split nail 51, so that the whole limit nail 5 is defined.

Further, the die tube 3 is divided into a first tube 31, a second tube 32, and a third tube 33 in this order from top to bottom.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.