CN220515234U

CN220515234U - Draw frock

Info

Publication number: CN220515234U
Application number: CN202322132550.6U
Authority: CN
Inventors: 潘冰; 王群英; �田宏; 赖军
Original assignee: Chongqing Jinshan Medical Technology Research Institute Co Ltd
Current assignee: Chongqing Jinshan Medical Technology Research Institute Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-02-23
Anticipated expiration: 2033-08-09

Abstract

The utility model discloses a shrinkage pipe tool which comprises a base, wherein one end of the base is provided with a sliding block in a sliding manner, the sliding block is connected with a driving mechanism, and the driving mechanism is used for driving the sliding block to slide towards the other end of the base in the opposite direction or the opposite direction; the sliding block is provided with a positioning mechanism in a floating mode and a contraction mechanism in a fixed mode, and the other end of the base is also symmetrically provided with the positioning mechanism and the contraction mechanism. The technical problem solved by the utility model is to develop a shrinkage pipe tool which can stably and efficiently shrink the diameter of a metal pipe and can meet the shrinkage pipe requirements of different diameters.

Description

Draw frock

Technical Field

The utility model relates to the technical field of machining devices, in particular to a shrinkage tube tool.

Background

The solid pressure measuring catheter commonly used in the market at present is divided into a capacitive pressure sensor and a resistive pressure sensor, and has the problems of complex process, high cost and the like, and has the problems of small pressure measuring angle, poor accuracy, easiness in wire breakage, single function, narrow coverage surface and the like. Therefore, the improvement of measurement accuracy, the reduction of production cost, the improvement of production efficiency, product quality, customer experience comfort and the like of the catheter are technical problems to be solved by the technicians in the field.

In the pressure measuring catheter, a metal circular tube with one end reduced in diameter is needed, and in order to meet the accuracy required by the pressure measuring catheter, the metal circular tube is required to be contracted and does not wrinkle, and the appearance meets the requirements. The current common method for reducing the diameter of the metal round tube adopts a manual extrusion mode of a clamp (wire pressing clamp) with a groove, the purpose of reducing the diameter is achieved by extruding the round tube through two-piece grooves, the shape of an extruded metal round tube can be wrinkled due to poor precision of common clamp (wire pressing clamp) and other tools, the ideal shape can not be achieved, and the condition that extrusion positions are inconsistent exists in manual control extrusion is adopted. Or the aim of extrusion is achieved through a large-scale hydraulic pipe shrinking machine, but the large-scale hydraulic pipe shrinking machine has higher equipment cost, needs customizing equipment, has higher processing difficulty and is inconvenient for rapidly switching the diameters of the metal cylinders/pipes needing shrinkage.

Therefore, those skilled in the art are working to develop a shrink tube tooling that can shrink metal tube diameters stably and efficiently and can meet the shrink tube requirements of different diameters.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present utility model discloses a shrinkage tube tooling, and aims to provide a shrinkage tube tooling which can stably and efficiently shrink the diameter of a metal tube and can meet the requirements of shrinkage tubes with different diameters.

In order to achieve the above purpose, the utility model provides a shrinkage pipe tool, which comprises a base, wherein one end of the base is provided with a sliding block in a sliding manner, the sliding block is connected with a driving mechanism, and the driving mechanism is used for driving the sliding block to slide towards the other end of the base in opposite directions or in opposite directions; the sliding block is provided with a positioning mechanism and a detachable contraction mechanism in a floating mode, and the other end of the base is symmetrically provided with the positioning mechanism and the contraction mechanism.

Preferably, the positioning mechanism comprises a floating block, a through hole is formed in the floating block, a cylindrical pin fixedly connected with the sliding block is slidably matched in the through hole, and the axial direction of the cylindrical pin is parallel to the moving direction of the sliding block. The straight line bearing is arranged between the cylindrical pin and the through hole, and through the straight line bearing, the floating block can better move along the cylindrical pin under the action of the spring, and the axial precision can be ensured not to be influenced after the floating block moves. The floating block is further provided with a counter bore, an elastic piece is arranged in the counter bore, two ends of the elastic piece are respectively propped against the floating block and the sliding block, one side of the floating block is provided with a positioning piece, and the positioning piece is a positioning clamp. The elastic piece can be provided as a spring, and when the spring is in a natural extension state, the elastic force of the spring enables a gap to exist between the floating block and the sliding block; when the positioning mechanisms at the two sides are close, the metal pipe is clamped in the positioning clamp by utilizing the elasticity of the spring, and the metal pipe is positioned in advance; when the primary shrinking is completed, the floating block returns to the initial position under the action of elastic force. To further define the path of motion of the slider, the number of through holes in the slider may be two or more, and the number of counterbore may be two or more, increasing the spring back force.

Preferably, the other end of the base is symmetrically provided with sliding blocks, both sliding blocks are connected with the driving mechanism, and the driving mechanism drives the two sliding blocks to slide in opposite directions or in opposite directions at the same time. The sliding blocks on the base can be one or two, and when one sliding block is arranged, the sliding blocks move to the fixed positioning mechanism and the shrinkage mechanism to shrink the pipe; when two sliding blocks are arranged, the two sliding blocks respectively carry the positioning mechanism and the contraction mechanism on the sliding blocks to move in opposite directions for contraction, and the efficiency of arranging the two sliding blocks is higher.

Preferably, the shrinkage mechanism comprises a mounting plate for fixing, a shrinkage clamp is arranged on the mounting plate, the mounting plate is perpendicular to the shrinkage clamp, the shrinkage clamp is parallel to the positioning clamp, and the mounting plate is fixedly connected with the sliding block or is connected with a fixing block for mounting the positioning mechanism and the shrinkage mechanism.

Preferably, the positioning mechanism is provided with a positioning clamp parallel to the shrinkage clamp, the positioning clamp is a positioning piece, the positioning clamp and the shrinkage clamp are both provided with semicircular grooves, the grooves on the two positioning clamps can form a whole circle, the grooves on the two shrinkage clamps can form a whole circle, and the diameter of the groove of the positioning clamp is larger than that of the groove of the shrinkage clamp.

Preferably, the slide blocks are respectively provided with a fixing plate for mounting the positioning mechanism and the contraction mechanism. Through setting up the fixed plate, install positioning mechanism and shrink mechanism on the fixed plate, can guarantee that shrink clamp and locating clamp are parallel, avoid the debugging. Meanwhile, when the diameter of the metal tube to be processed changes, the fixing plate can be directly detached from the sliding block for replacement, so that the quick switching is facilitated, and the universality of the tube shrinking tool is improved.

Preferably, the driving mechanism is a screw rod arranged in the base, two ends of the screw rod are respectively in threaded connection with the two sliding blocks, and the screw rod is provided with threads with opposite threads. The driving mechanism can also be arranged as an air cylinder or a hydraulic cylinder, and when only one sliding block is arranged, the scheme of adopting the screw rod is that the screw threads on the screw rod are consistent in rotation direction.

Preferably, the two ends of the screw are respectively provided with a polygonal screwing head, the screwing heads can be three sides, four sides and the like, and the screw can be rotated by rotating the screwing heads through corresponding sleeves.

Preferably, the base is provided with a chute, the chute is in sliding fit with the sliding block, and the middle part of the chute is provided with an arc-shaped step for supporting the screw rod. The slider is T font, and the downside arch of slider cooperatees with the spout, and the screw rod sets up in the spout to support through the arc step.

Preferably, the side wall of the chute is provided with a limit groove, the limit groove is consistent with the slotting direction of the chute, and the sliding block is provided with limit lugs which are in sliding fit with the limit groove. After the sliding block is matched with the base, the sliding block can directionally slide in the sliding groove, and meanwhile, due to the matching of the limiting protruding blocks and the limiting grooves, sliding deflection can be prevented, and the machining precision is improved.

The beneficial effects of the utility model are as follows:

through setting up positioning mechanism and shrink mechanism, the positioning mechanism that floats is used for fixing the location with the tubular metal resonator in advance, and shrink mechanism is used for carrying out extrusion shrink to the position that needs the reducing again, avoids the inconsistent condition of extrusion position to can adopt shrink mechanism control metallic cylinder's appearance. The detachable shrinkage mechanism is convenient to replace according to the diameter of the metal tube, and the shrinkage tube requirements of different diameters can be met. In addition, the sliding block is driven by the driving mechanism to advance or retreat, so that the stability of the movement of the positioning mechanism and the contraction mechanism is ensured, the contraction effect of each time is ensured, and time and labor are saved compared with tools such as manual clamps (wire pressing pliers).

Drawings

FIG. 1 is a schematic structural view of a specific embodiment of a shrink tube tooling of the present utility model;

FIG. 2 is a schematic diagram of an explosion structure of the shrink tube tooling of the present utility model;

FIG. 3 is a schematic view of a part of the pipe shrinking tool of the present utility model;

FIG. 4 is a schematic illustration of a slider of a shrink tube tooling of the present utility model;

FIG. 5 is a schematic view of the base of the shrink tube tooling of the present utility model;

fig. 6 is a schematic structural view of a driving mechanism of the shrink tube tooling of the present utility model.

In the above figures: 1. a base; 11. a chute; 12. an arc-shaped step; 13. a limit groove; 2. a slide block; 21. a fixing plate; 22. a limit bump; 3. a driving mechanism; 31. a screw; 32. polygonal screwing head; 4. a positioning mechanism; 41. a slider; 411. a through hole; 412. countersink; 42. a cylindrical pin; 43. a linear bearing; 44. a positioning clamp; 5. a retraction mechanism; 51. a mounting plate; 52. and (5) contracting the clamp.

Detailed Description

The present utility model will be further described with reference to the drawings and examples, and it should be noted that in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific manner, and thus should not be construed as limiting the present utility model. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the utility model provides a shrinkage tube tool, which comprises a base 1, wherein one end of the base 1 is provided with a sliding block 2 in a sliding manner, the sliding block 2 is connected with a driving mechanism 3, and the driving mechanism 3 is used for driving the sliding block 2 to slide towards the other end of the base 1 in the opposite direction or in the opposite direction; the slide block 2 is provided with a positioning mechanism 4 in a floating manner and a detachable contraction mechanism 5 is fixed on the slide block, and the other end of the base 1 is also symmetrically provided with the positioning mechanism 4 and the contraction mechanism 5.

In this embodiment, the other end of the base 1 is also symmetrically provided with a slider 2, and the slider 2 is provided with a positioning mechanism 4 and a retracting mechanism 5. Both the sliding blocks 2 are connected with a driving mechanism 3, and the driving mechanism 3 drives the two sliding blocks 2 to slide in opposite directions or in opposite directions at the same time. The number of the sliding blocks 2 which can slide on the base 1 can be one or two, when one sliding block 2 is arranged, the other end of the sliding block is provided with a fixed block for installing the positioning mechanism 4 and the shrinking mechanism 5, and the sliding block 2 moves to the fixed positioning mechanism 4 and the shrinking mechanism 5 to shrink the pipe; when two sliding blocks 2 are arranged, the two sliding blocks 2 respectively carry the positioning mechanism 4 and the shrinkage mechanism 5 on the sliding blocks to move in opposite directions for shrinkage, and the efficiency of arranging the two sliding blocks 2 is higher.

In this embodiment, by providing the positioning mechanism 4 and the shrinking mechanism 5, the floating positioning mechanism 4 is used for fixing and positioning the metal tube in advance, the shrinking mechanism 5 is used for extruding and shrinking the part needing to be reduced, the condition that the extrusion positions are inconsistent is avoided, and the shrinking mechanism 5 can be used for controlling the appearance of the metal cylinder. The detachable shrinkage mechanism 5 is convenient to replace according to the diameter of the metal tube, and can meet the shrinkage tube requirements of different diameters. In addition, through the slider 2, make slider 2 advance or retreat under the drive of actuating mechanism 3, ensure the stability of positioning mechanism 4 and shrink mechanism 5 motion, guarantee the shrink effect of every turn to it is more labour saving and time saving than instrument such as manual clamp (wire pressing pliers).

As shown in fig. 2 to 4, the positioning mechanism 4 includes a slider 41, a through hole 411 is provided on the slider 41, a cylindrical pin 42 fixedly connected with the slider 2 is slidably fitted in the through hole 411, and an axial direction of the cylindrical pin 42 is parallel to a movement direction of the slider 2. The floating block 41 is also provided with a counter bore 412, an elastic piece is arranged in the counter bore 412, two ends of the elastic piece are respectively propped against the floating block 41 and the sliding block 2, one side of the floating block 41 is provided with a positioning piece, the positioning piece is a positioning clamp 44, and the elastic piece can be arranged as a spring. A linear bearing 43 is arranged between the cylindrical pin 42 and the through hole 411, and the floating block 41 can better move along the cylindrical pin 42 under the action of a spring through the linear bearing 43, and the accuracy in the axial direction can be ensured not to be influenced after the movement. When the spring is in a natural extension state, a gap exists between the floating block 41 and the sliding block 2 due to the elastic force of the spring; when the positioning mechanisms 4 on the two sides are closed, the metal pipe is clamped in the positioning clamp 44 by utilizing the elasticity of the spring, and the metal pipe is positioned in advance; when the primary shrinking is completed, the slider 41 returns to the initial position by the elastic force. To further define the movement path of the slider 41, the number of through holes 411 on the slider 41 may be two or more, and the number of counter holes 412 may be two or more, increasing the resilience.

Meanwhile, the shrinkage mechanism 5 comprises a mounting plate 51, a shrinkage clamp 52 is arranged on the mounting plate 51, the mounting plate 51 is perpendicular to the shrinkage clamp 52, the shrinkage clamp 52 is parallel to the positioning clamp 44, and the mounting plate 51 is fixedly connected with the sliding block 2 or the fixed block. The positioning clamp 44 and the shrinkage clamp 52 are provided with semicircular grooves, the grooves of the positioning clamp 44 on the two sliding blocks 2 can be enclosed into a whole circle, the grooves of the shrinkage clamp 52 on the two sliding blocks 2 can be enclosed into a whole circle, the diameter of the grooves of the positioning clamp 44 is larger than that of the grooves of the shrinkage clamp 52, the diameter of the grooves of the positioning clamp 44 is equal to that of a metal pipe, and the diameter of the grooves of the shrinkage clamp 52 is the diameter after shrinkage.

Furthermore, the slide blocks 2 are respectively provided with a fixing plate 21 for mounting the positioning mechanism 4 and the retracting mechanism 5. By providing the fixing plate 21, the positioning mechanism 4 and the contracting mechanism 5 are mounted on the fixing plate 21, so that the contracting clamp 52 and the positioning clamp 44 can be ensured to be parallel, and debugging is avoided. Meanwhile, when the diameter of the metal tube to be processed changes, the fixing plate 21 can be directly detached from the sliding block 2 for replacement, so that the quick switching is facilitated, and the universality of the tube shrinking tool is improved.

As shown in fig. 1 and 2, the driving mechanism 3 is a screw 31 provided in the base 1. As shown in fig. 5, a sliding groove 11 is arranged on the base 1, the sliding groove 11 is in sliding fit with the sliding block 2, and an arc-shaped step 12 for supporting a screw 31 is arranged in the middle of the sliding groove 11. The slider 2 is T-shaped, and the downside arch of slider 2 cooperatees with spout 11, and screw rod 31 sets up in spout 11 to support through arc step 12. Further, the side wall of the chute 11 is provided with a limit groove 13, the limit groove 13 is consistent with the slotting direction of the chute 11, and the slide block 2 is provided with limit lugs 22 which are in sliding fit with the limit groove 13. After the sliding block 2 is matched with the base 1, the sliding block can directionally slide in the sliding groove 11, and meanwhile, due to the matching of the limiting convex blocks 22 and the limiting grooves 13, the sliding deflection can be prevented, and the processing precision is improved. As shown in fig. 6, both ends of the screw 31 are respectively screwed with the two sliders 2, and the screw 31 is provided with threads having opposite screw threads. The driving mechanism 3 can also be provided as an air cylinder or a hydraulic cylinder, etc., and when only one slide block 2 is provided, the screw is adopted in the scheme that the screw threads on the screw are consistent in rotation direction. The screw 31 is provided with a polygonal screwing head 32 at both end portions thereof, and the screwing head may be three-sided, four-sided, or the like, and the screw 31 may be rotated by rotating the screwing head with a corresponding sleeve.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. Draw frock, its characterized in that: the device comprises a base (1), wherein one end of the base (1) is provided with a sliding block (2) in a sliding manner, the sliding block (2) is connected with a driving mechanism (3), and the driving mechanism (3) is used for driving the sliding block (2) to slide towards the other end of the base (1) in the opposite direction or the opposite direction; the sliding block (2) is provided with a positioning mechanism (4) in a floating mode and a detachable shrinkage mechanism (5) is fixed on the sliding block, and the other end of the base (1) is symmetrically provided with the positioning mechanism (4) and the shrinkage mechanism (5).

2. The shrink tubing tool of claim 1, wherein: the positioning mechanism (4) comprises a floating block (41), a through hole (411) is formed in the floating block (41), and a cylindrical pin (42) fixedly connected with the sliding block (2) is slidably matched in the through hole (411); a counter bore (412) is further formed in the floating block (41), an elastic piece is arranged in the counter bore (412), and two ends of the elastic piece are respectively abutted against the floating block (41) and the sliding block (2); one side of the floating block (41) is provided with a positioning piece.

3. The shrink tubing tool of claim 1, wherein: the other end of the base (1) is symmetrically provided with a sliding block (2), and the sliding block (2) is provided with the positioning mechanism (4) and the contraction mechanism (5); the two sliding blocks (2) are connected with the driving mechanism (3), and the driving mechanism (3) drives the two sliding blocks (2) to slide in opposite directions or in opposite directions at the same time.

4. The shrink tubing tool of claim 1, wherein: the shrinkage mechanism (5) comprises a mounting plate (51) for fixing, and a shrinkage clamp (52) is arranged on the mounting plate (51).

5. The shrink tubing tool of claim 4, wherein: the positioning mechanism (4) is provided with a positioning clamp (44) parallel to the shrinkage clamp (52), the positioning clamp (44) and the shrinkage clamp (52) are respectively provided with semicircular grooves, the grooves on the two positioning clamps (44) can be enclosed into a whole circle, the grooves on the two shrinkage clamps (52) can be enclosed into a whole circle, and the diameter of the grooves of the positioning clamp (44) is larger than that of the grooves of the shrinkage clamp (52).

6. A tube shrinkage tool as defined in claim 3, wherein: the slide block (2) is respectively provided with a fixed plate (21) for installing the positioning mechanism (4) and the contraction mechanism (5).

7. A tube shrinkage tool as defined in claim 3, wherein: the driving mechanism (3) is a screw rod (31) arranged in the base (1), two ends of the screw rod (31) are respectively in threaded connection with the two sliding blocks (2), and the screw rod (31) is provided with threads with opposite threads.

8. The shrink tubing tool of claim 7, wherein: both end parts of the screw rod (31) are respectively provided with a polygonal screwing head (32).

9. The shrink tubing tool of claim 7, wherein: the base (1) is provided with a chute (11), the chute (11) is in sliding fit with the sliding block (2), and the middle part of the chute (11) is provided with an arc-shaped step (12) for supporting the screw rod (31).

10. The shrink tubing tool of claim 9, wherein: the side wall of the chute (11) is provided with a limit groove (13), and the slide block (2) is provided with limit lugs (22) which are in sliding fit with the limit groove (13).