CN220444667U - Novel copper pipe drawing trolley - Google Patents

Abstract

The utility model discloses a novel copper pipe drawing trolley, which comprises a movable trolley frame, wherein the movable trolley frame comprises a trolley frame bottom plate and a trolley frame top plate, a lower guide plate is fixedly arranged at the left side end of the trolley frame bottom plate, and a dovetail groove is formed in the top surface of the lower guide plate along the length direction of the trolley frame bottom plate; screw die clamping nozzles are symmetrically arranged on the front side and the rear side in the dovetail groove of the lower guide plate; clamp backrest guide keys are symmetrically arranged at the front end and the rear end of the right side of the top surface of the frame bottom plate; the clamp backrest guide keys are obliquely arranged along the horizontal direction, the clamp backrest guide keys are respectively and slidably nested with the clamp backrest plate, the inner side walls of the clamp backrest plate are respectively and fixedly connected with the hydraulic clamps, and the frame top plate is provided with the hydraulic cylinder A for driving the screw die clamping mouth to slide and the hydraulic cylinder B for driving the clamp backrest plate to slide.

Description

Novel copper pipe drawing trolley

Technical Field

The utility model relates to the technical field of copper pipe processing, in particular to a novel copper pipe drawing trolley.

Background

The joint drawing technology has a very important role in the seamless copper pipe cold working industry, a joint drawing machine respectively drives two drawing trolleys to alternately and continuously draw a copper pipe by utilizing two cams, two pairs of circular arc holding clamps on the trolleys are sequentially loosened and held tightly under the control of a hydraulic system, so that the joint drawing process is realized, the head of the copper pipe is extruded and deformed in the last procedure before the copper pipe is drawn, the existing copper pipe drawing device usually needs two independent drawing trolleys to finish drawing the copper pipe, the deformed part of the copper pipe head is clamped by the clamp on one drawing trolley at first, the copper pipe head is pulled out for a certain length, then the clamp on the second drawing trolley is used for clamping the copper pipe body and carrying out copper pipe drawing work, but the problems of complex structure, low copper pipe drawing efficiency, uneven clamping force applied to the copper pipe, unstable copper pipe drawing operation and the like exist.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the novel copper pipe drawing trolley which can be used for rapidly drawing a copper pipe, has a simple structure, is high in copper pipe drawing efficiency, is uniform in clamping force applied to the copper pipe by a die clamping nozzle and a hydraulic clamp, is stable in copper pipe drawing operation, improves the surface quality of the copper pipe, and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel copper pipe drawing trolley comprises a moving frame, wherein the moving frame comprises a frame bottom plate and a frame top plate, and a die guide assembly is fixedly arranged at the left side end of the frame bottom plate; the die guide assembly comprises a lower guide plate, wherein a dovetail groove is formed in the top surface of the lower guide plate along the length direction of a frame bottom plate, lower guide grooves are symmetrically formed in the front side and the rear side of the lower guide plate, which are positioned at the bottom of the dovetail groove, and the lower guide grooves are respectively parallel to two side walls of the dovetail groove; the front side and the rear side of the dovetail groove of the lower guide plate are symmetrically provided with die clamping nozzles, and the two die clamping nozzles are symmetrically arranged along the central line of the length direction of the frame bottom plate; the outer side wall of the die clamping mouth is attached to the inner wall of the dovetail groove of the lower guide plate, and guide protrusions matched with the die clamping mouth are arranged at the positions of the bottoms of the die clamping mouth corresponding to the lower guide grooves; clamp backrest guide keys are symmetrically arranged at the front end and the rear end of the right side of the top surface of the frame bottom plate; the clamp backrest guide keys are obliquely arranged along the horizontal direction, clamp backrest plates are respectively and slidably nested on the clamp backrest guide keys, hydraulic clamps are fixedly connected to the inner side walls of the clamp backrest plates, and the two hydraulic clamps are symmetrically arranged along the central line of the length direction of the frame bottom plate; the frame top plate is fixed above the frame bottom plate through a connecting bolt, a hydraulic cylinder A and a hydraulic cylinder B are fixedly connected to the frame top plate, and telescopic ends of the hydraulic cylinder A and the hydraulic cylinder B face to the left side end and the right side end of the movable frame respectively; the telescopic end of the hydraulic cylinder A is connected with a push plate, and the two die clamping nozzles are movably connected with the push plate through movable connecting plates; the right side end of the hydraulic cylinder B is fixedly connected with a clamp driving plate, and the two clamp back boards are movably connected with the clamp driving plate through a driving connecting plate.

Further, the die guide assembly further comprises an upper guide plate fixed at the upper end of the lower guide plate, the front side and the rear side of the bottom surface of the upper guide plate are respectively provided with an upper guide groove with the same structure as the lower guide grooves, and the top surfaces of the two die clamping nozzles are positioned at the positions corresponding to the upper guide grooves and are also provided with guide protrusions.

Further, a linear guide rail is arranged on the top surface of the upper guide plate along the length direction of the movable frame, and a sliding block in sliding connection with the linear guide rail is arranged on the bottom surface of the push plate.

Further, the front side wall and the rear side wall of the lower guide plate are respectively connected with a horizontally arranged jacking bolt in a threaded manner, and the jacking bolts are respectively vertical to the corresponding lower guide grooves; the screw die clamping mouth is characterized in that guide grooves are formed in the outer side wall of the screw die clamping mouth and located at positions corresponding to the tightening bolts, the guide grooves are parallel to the lower guide grooves, and the tightening bolts penetrate into the guide grooves of the lower guide plates.

Further, a clamping hook groove is formed in the left side end of the hydraulic clamp, and the right side end of the hydraulic clamp is of an inclined plane structure; the left end of the clamp backboard is provided with a hook matched with the clamping hook groove, the right end of the clamp backboard is connected with a clamping block through a bolt, and the inner side end face of the clamping block is attached to the right side end face of the hydraulic clamp.

Further, the outer side wall of the clamp back plate in the length direction is of an inclined surface structure, and the outer side wall of the clamp back plate in the length direction is parallel to the clamp back guide key; guide roller groups are arranged at the front end and the rear end of the top surface of the frame bottom plate, each guide roller group comprises a plurality of guide rollers which are vertically arranged, the guide rollers are rotatably connected to the frame bottom plate through rotating shafts, and the guide rollers of the guide roller groups are distributed along the arrangement direction of the clamp backrest guide keys; the guide rollers are attached to the outer side walls of the clamp backboard in the length direction.

Compared with the prior art, the utility model has the beneficial effects that: the novel copper pipe drawing trolley has the advantages that firstly, the hydraulic cylinder A stretches to drive the push plate to enable the die clamping mouth to clamp and pull out the end part of the copper pipe for a certain length, then, the hydraulic cylinder B contracts to pull the clamp driving plate to enable the hydraulic clamp to draw the copper pipe body, the quick drawing of the copper pipe can be met, the structure is simple, and the drawing efficiency of the copper pipe is high; the die clamping mouth and the hydraulic clamp are arranged along the central line of the frame bottom plate, the hydraulic cylinder B is also arranged at the central line of the frame bottom plate, the clamping force applied by the die clamping mouth and the hydraulic clamp to the copper pipe is uniform, the copper pipe drawing operation is stable, and the surface quality of the copper pipe is improved.

Drawings

FIG. 1 is a top view of a mobile frame of the present utility model;

FIG. 2 is a top plan view of the floor of the frame of the present utility model;

FIG. 3 is a schematic side view of a mobile frame according to the present utility model;

FIG. 4 is a top view of the lower guide plate of the present utility model;

FIG. 5 is a schematic view of an upper guide plate structure of the present utility model;

FIG. 6 is a schematic view of a die guide assembly in sliding engagement with a die holder in accordance with the present utility model;

FIG. 7 is a side view of a die holder of the present utility model;

fig. 8 is a schematic diagram of a connection structure between a back plate and a clamp according to the present utility model.

In the figure: 1 moving frame, 101 frame top plate, 102 frame bottom plate, 1021 clamp backrest guide key, 2 hydraulic cylinder A, 3 hydraulic cylinder B, 4 push plate, 5 movable connecting plate, 6 die guide assembly, 61 lower guide plate, 611 lower guide groove, 62 upper guide plate, 621 upper guide groove, 622 linear guide rail, 7 die clamping mouth, 71 guide bulge, 72 guide groove, 8 jack bolt, 9 clamp backrest plate, 91 hook, 92 clamp block, 10 hydraulic clamp, 1001 clamp inclined plane, 1002 clamp hook groove, 11 guide roller, 12 clamp drive plate and 13 drive connecting plate.

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.

Examples

Referring to fig. 1-8, the present utility model provides a technical solution: the novel copper pipe drawing trolley comprises a moving frame 1, wherein the moving frame 1 comprises a frame bottom plate 102 and a frame top plate 101, and a die guide assembly 6 is fixedly arranged at the left side end of the frame bottom plate 102; the die guide assembly 6 comprises a lower guide plate 61, wherein a dovetail groove is formed in the top surface of the lower guide plate 61 along the length direction of the frame bottom plate 102, the width of the dovetail groove is gradually increased along the right side direction of the frame top plate 101, lower guide grooves 611 are symmetrically formed in the front side and the rear side of the lower guide plate 61 at the bottom of the dovetail groove, and the lower guide grooves 611 are respectively parallel to two side walls of the dovetail groove; the front side and the rear side of the dovetail groove of the lower guide plate 61 are symmetrically provided with die clamping nozzles 7, and the two die clamping nozzles 7 are symmetrically arranged along the central line of the length direction of the frame bottom plate 102; the outer side wall of the die clamping mouth 7 is attached to the inner wall of the dovetail groove of the lower guide plate 61, and guide protrusions 71 matched with the die clamping mouth 7 are arranged at positions corresponding to the lower guide grooves 611 at the bottoms of the die clamping mouth 7; the die guide assembly 6 further comprises an upper guide plate 62 fixed at the upper end of the lower guide plate 61, wherein both front and rear sides of the bottom surface of the upper guide plate 62 are provided with upper guide grooves 621 which have the same structure as the lower guide grooves 611, and guide protrusions 71 are also arranged on the top surfaces of the two die clamping nozzles 7 at positions corresponding to the upper guide grooves 621; a linear guide rail 622 is arranged on the top surface of the upper guide plate 62 along the length direction of the moving frame 1, and a sliding block which is in sliding connection with the linear guide rail 622 is arranged on the bottom surface of the push plate 4; clamp backrest guide keys 1021 are symmetrically arranged at the front end and the rear end of the right side of the top surface of the frame bottom plate 102; the clamp backrest guide keys 1021 are arranged in an outward inclined mode along the length direction of the clamp backrest guide keys 1021, clamp backrest plates 9 are nested in a sliding mode, hydraulic clamps 10 are fixedly connected to the inner side walls of the clamp backrest plates 9, and the two hydraulic clamps 10 are symmetrically arranged along the central line of the length direction of the frame bottom plate 102; the frame top plate 101 is fixed above the frame bottom plate 102 through a connecting bolt, a hydraulic cylinder A2 and a hydraulic cylinder B3 are fixedly connected to the frame top plate 101, and telescopic ends of the hydraulic cylinder A2 and the hydraulic cylinder B3 face to the left side end and the right side end of the movable frame 1 respectively; the telescopic end of the hydraulic cylinder A2 is connected with a push plate 4, and two die clamping nozzles 7 are movably connected with the push plate 4 through movable connecting plates 5; the hydraulic cylinder B3 is arranged along the central line of the length direction of the frame bottom plate 102, the right side end of the hydraulic cylinder B3 is fixedly connected with the clamp driving plate 12, and the two clamp back plates 9 are movably connected with the clamp driving plate 12 through the driving connecting plate 13.

Working principle:

when the drawing trolley needs to draw the copper pipe, the drawing trolley moves to enable the drawing trolley to be close to the end part of the copper pipe, meanwhile, the hydraulic cylinder A2 stretches to drive the push plate 4 to move, the push plate 4 moves to drive the die clamping nozzle 7 to slide along the lower guide groove 611 and the upper guide groove 621, the die clamping nozzle 7 is close to each other to clamp the end part of the copper pipe, the drawing trolley slides to the side far away from the copper pipe to draw the copper pipe for a certain length, and then the hydraulic cylinder A2 contracts to drive the die clamping nozzle 7 to loosen the end part of the copper pipe; the drawing trolley slides towards one side of the copper pipe again, the clamp driving plate 12 is contracted and pulled to move through the hydraulic cylinder B3, the clamp driving plate 12 is pulled to slide along the clamp backrest plate 9 by the driving connecting plate 13 after moving, the hydraulic clamps 10 on the two sides are mutually close to clamp the copper pipe, the copper pipe is pulled out by sliding on one side, far away from the copper pipe, of the drawing trolley groove, and then the hydraulic cylinder B3 is extended to enable the hydraulic clamps 10 to loosen the copper pipe; the hydraulic clamp 10 is driven to stretch and retract through the hydraulic cylinder B3 in sequence to draw the copper pipe according to the method.

The copper pipe drawing trolley disclosed by the embodiment has the advantages that firstly, the push plate 4 is driven by the extension of the hydraulic cylinder A2 to enable the die clamping mouth 7 to clamp and pull the end part of the copper pipe for a certain length, and then, the clamp driving plate 12 is pulled by the contraction of the hydraulic cylinder B3 to enable the hydraulic clamp 10 to draw the copper pipe body, so that the copper pipe drawing trolley can realize the rapid drawing of the copper pipe, has a simple structure and high copper pipe drawing efficiency; the die clamping mouth 7 and the hydraulic clamp 10 are arranged along the central line of the frame bottom plate 102, the hydraulic cylinder B3 is also arranged at the central line of the frame bottom plate 102, the clamping force applied to the copper pipe by the die clamping mouth 7 and the hydraulic clamp 10 is uniform, the copper pipe drawing operation is stable, and the surface quality of the copper pipe is improved.

Further, the front and rear side walls of the lower guide plate 61 are respectively connected with a horizontally arranged jacking bolt 8 in a threaded manner, and the jacking bolts 8 are respectively perpendicular to the corresponding lower guide grooves 611; the outer side wall of the die clamping nozzle 7 is provided with guide grooves 72 at positions corresponding to the jacking bolts 8, the guide grooves 72 are parallel to the lower guide grooves 611, and the jacking bolts 8 penetrate into the guide grooves 72 of the lower guide plate 61; the outer side wall of the die clamping mouth 7 is tightly jacked and guided through the jacked bolts 8, so that the sliding precision and stability of the die clamping mouth 7 are further improved.

Further, a clamping hook groove 1002 is formed in the left side end of the hydraulic clamp 10, and the right side end of the hydraulic clamp 10 is of an inclined surface structure; the left end of the clamp back plate 9 is provided with a hook 91 matched with the clamping hook groove 1002, the right end of the clamp back plate 9 is connected with a clamping block 92 through a bolt, and the inner side end surface of the clamping block 92 is attached to the right side end surface of the hydraulic clamp 10; the two ends of the hydraulic clamp 10 are clamped through the hooks 91 and the clamping blocks 92 arranged at the two ends of the hydraulic clamp 10, and the clamp back plate 9 is firmly connected with the hydraulic clamp 10 and is convenient to assemble and disassemble.

Further, the outer side wall of the clamp back plate 9 in the length direction is of an inclined surface structure, and the outer side wall of the clamp back plate 9 in the length direction is parallel to the clamp back plate guiding key 1021; guide roller groups are arranged at the front end and the rear end of the top surface of the frame bottom plate 102, each guide roller group comprises a plurality of guide rollers 11 which are vertically arranged, the guide rollers 11 are rotatably connected to the frame bottom plate 102 through rotating shafts, and the guide rollers 11 of the guide roller groups are distributed along the arrangement direction of clamp backrest guide keys 1021; the guide rollers 11 are attached to the outer side walls of the clamp backboard 9 in the length direction; the guide roller 11 plays a role in guiding the sliding of the outer wall of the clamp back plate 9, so that the sliding precision and stability of the clamp back plate 9 and the hydraulic clamp 10 are further improved.

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 (6)

1. Novel dolly is drawn to copper pipe, including removing the frame, its characterized in that: the movable frame comprises a frame bottom plate and a frame top plate, and a die guide assembly is fixedly arranged at the left side end of the frame bottom plate; the die guide assembly comprises a lower guide plate, wherein a dovetail groove is formed in the top surface of the lower guide plate along the length direction of a frame bottom plate, lower guide grooves are symmetrically formed in the front side and the rear side of the lower guide plate, which are positioned at the bottom of the dovetail groove, and the lower guide grooves are respectively parallel to two side walls of the dovetail groove; the front side and the rear side of the dovetail groove of the lower guide plate are symmetrically provided with die clamping nozzles, and the two die clamping nozzles are symmetrically arranged along the central line of the length direction of the frame bottom plate; guide protrusions matched with the lower guide grooves are arranged at the bottoms of the die clamping nozzles and correspond to the lower guide grooves; clamp backrest guide keys are symmetrically arranged at the front end and the rear end of the right side of the top surface of the frame bottom plate; the clamp backrest guide keys are obliquely arranged along the horizontal direction, clamp backrest plates are respectively and slidably nested on the clamp backrest guide keys, hydraulic clamps are fixedly connected to the inner side walls of the clamp backrest plates, and the two hydraulic clamps are symmetrically arranged along the central line of the length direction of the frame bottom plate; the frame top plate is fixed above the frame bottom plate through a connecting bolt, a hydraulic cylinder A and a hydraulic cylinder B are fixedly connected to the frame top plate, and telescopic ends of the hydraulic cylinder A and the hydraulic cylinder B face to the left side end and the right side end of the movable frame respectively; the telescopic end of the hydraulic cylinder A is connected with a push plate, and the two die clamping nozzles are movably connected with the push plate through movable connecting plates; the right side end of the hydraulic cylinder B is fixedly connected with a clamp driving plate, and the two clamp back boards are movably connected with the clamp driving plate through a driving connecting plate.

2. A novel copper tube drawing trolley according to claim 1, wherein: the die guide assembly further comprises an upper guide plate fixed at the upper end of the lower guide plate, upper guide grooves with the same structure as the lower guide grooves are formed in the front side and the rear side of the bottom surface of the upper guide plate, and guide protrusions are arranged on the top surfaces of the two die clamping nozzles, which are located at positions corresponding to the upper guide grooves.

3. A novel copper tube drawing trolley according to claim 2, wherein: the top surface of the upper guide plate is provided with a linear guide rail along the length direction of the movable frame, and the bottom surface of the push plate is provided with a slide block in sliding connection with the linear guide rail.

4. A novel copper tube drawing trolley according to claim 1, wherein: the front side wall and the rear side wall of the lower guide plate are respectively in threaded connection with a horizontally arranged jacking bolt, and the jacking bolts are respectively vertical to the corresponding lower guide grooves; the screw die clamping mouth is characterized in that guide grooves are formed in the outer side wall of the screw die clamping mouth and located at positions corresponding to the tightening bolts, the guide grooves are parallel to the lower guide grooves, and the tightening bolts penetrate into the guide grooves of the lower guide plates.

5. A novel copper tube drawing trolley according to claim 1, wherein: the left side end of the hydraulic clamp is provided with a clamping hook groove, and the right side end of the hydraulic clamp is of an inclined plane structure; the left end of the clamp backboard is provided with a hook matched with the clamping hook groove, the right end of the clamp backboard is connected with a clamping block through a bolt, and the inner side end face of the clamping block is attached to the right side end face of the hydraulic clamp.

6. A novel copper tube drawing trolley according to claim 1, wherein: the outer side wall of the clamp backboard in the length direction is of an inclined surface structure, and the outer side wall of the clamp backboard in the length direction is parallel to the clamp backrest guide key; guide roller groups are arranged at the front end and the rear end of the top surface of the frame bottom plate, each guide roller group comprises a plurality of guide rollers which are vertically arranged, the guide rollers are rotatably connected to the frame bottom plate through rotating shafts, and the guide rollers of the guide roller groups are distributed along the arrangement direction of the clamp backrest guide keys; the guide rollers are attached to the outer side walls of the clamp backboard in the length direction.