Pipe fitting crimping tool

Abstract

The utility model discloses a pipe fitting crimping tool, and particularly relates to the technical field of medical instrument processing, the pipe fitting crimping tool comprises a placing groove used for placing a flexible shaft, a clamping groove used for clamping a pipe fitting, a crimping upper die and a crimping lower die, the crimping upper die and the crimping lower die are used for crimping the flexible shaft and the pipe fitting, and the placing groove is fixedly connected with the clamping groove. The top end of the lower crimping die is provided with a plurality of crimping channels, and the bottom of the upper crimping die is provided with crimping ports matched with the crimping channels. The device is small in size, convenient to carry and transport, adjustable in length, simple in fixing mode, capable of reducing stress concentration in the pipe fitting crimping process and preventing cracking by optimizing the shape of a crimping port, reasonable in crimping channel design, capable of ensuring uniform crimping force distribution, capable of effectively preventing the pipe fitting from deforming after crimping by adopting an upper and lower die fixing structure, stable in crimping shape and high in reliability. And the crimping quality of the pipe fitting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment processing, and more specifically to a pipe crimping tool. Background Art

[0002] Crimping is a process of permanent connection in which a certain mechanical external force is applied to the pipe fitting, causing the pipe fitting to undergo geometric deformation, thereby precisely combining two materials to achieve work requirements such as material connection and torque transmission.

[0003] However, there are currently few toolings for controlling the crimping length of flexible shafts and tubes of medical devices. During the crimping process, if the gap is large, the flexible shaft and the tube are prone to loosening and slipping during movement, resulting in inaccurate crimping position, affecting the crimping quality and effect. Fixing the crimping position is crucial to the crimping process.

[0004] The main disadvantages of the existing technology are that there are few toolings for controlling the length of the flexible shaft crimping, and the tooling for controlling the length position is large and has many parts. There are few toolings for controlling the length of small crimping, which is inconvenient for subsequent crimping operations. At the same time, the existing crimping device has an unstable crimping shape, resulting in uneven force values, and the pipe fittings are easily deformed after crimping, which affects the crimping quality of the pipe fittings. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pipe crimping tool, including a placement groove for placing a flexible shaft, a clamping groove for clamping a pipe fitting, a crimping upper die and a crimping lower die for crimping the flexible shaft and the pipe fitting, the placement groove and the clamping groove are fixedly connected, a plurality of crimping channels are opened at the top of the crimping lower die, and a crimping interface matching the crimping channel is installed at the bottom of the crimping upper die.

[0006] In a preferred embodiment, scale lines are arranged at the edge of the placement groove, and anti-slip tooth grooves are arranged at the bottom of the placement groove.

[0007] In a preferred embodiment, the clamping slot includes a first clamping tube fixedly connected to the placement slot and a second clamping tube threadedly connected to the first clamping tube, and fixing bolts are installed on both the first clamping tube and the second clamping tube.

[0008] In a preferred embodiment, auxiliary platforms extending outward are provided on the outer walls on both sides of the crimping lower die, and lifting and lowering crimping support members are installed on the two auxiliary platforms, which support and stabilize the flexible shaft and pipe fittings during the crimping process.

[0009] In a preferred embodiment, the crimping support includes a lower clamp and an upper clamp that can be raised and lowered on the auxiliary platform. The upper clamp is attached to the top of the lower clamp, and the end of the upper clamp is movably hinged to the end of the lower clamp. Telescopic rods are installed at the bottom of both ends of the lower clamp, and the bottom end of the telescopic rod is fixed to the surface of the auxiliary platform.

[0010] In a preferred embodiment, a screw rod penetrating the auxiliary platform is arranged below the middle of the lower clamping plate, a knob is installed at the bottom end of the screw rod, a screw tube fixed on the auxiliary platform is sleeved on the outside of the screw rod, a bearing is installed at the top end of the screw rod, and the bearing is fixed at the bottom of the lower clamping plate.

[0011] In a preferred embodiment, magnets are installed at one end of the upper clamp and the lower clamp away from the movable hinge, and a plurality of auxiliary grooves are opened on the bottom of the upper clamp and the top of the lower clamp, and the auxiliary grooves of the crimping support members on the two auxiliary platforms are respectively located on both sides of the crimping channel and the crimping interface.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model discloses a device with small volume, convenient to carry and transport, adjustable length, simple fixing method, and reduces stress concentration of pipe fittings during crimping process by optimizing the shape of the crimping interface to prevent cracking. The crimping channel is reasonably designed to ensure uniform distribution of crimping force. The upper and lower mold fixing structure is adopted to effectively prevent deformation of pipe fittings after crimping. The crimping shape is stable, and the crimping quality of pipe fittings is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the pipe clamping part of the utility model;

[0016] Figure 3 It is a schematic diagram of the utility model from another angle.

[0017] Explanation of the reference numerals: 1 placement slot, 2 clamping slot, 3 crimping upper die, 4 crimping lower die, 5 crimping channel, 6 crimping interface, 7 scale line, 8 anti-slip tooth groove, 9 first clamping tube, 10 second clamping tube, 11 fixing bolt, 12 auxiliary platform, 13 upper clamping plate, 14 lower clamping plate, 15 telescopic rod, 16 screw rod, 17 knob, 18 screw tube, 19 bearing, 20 magnet, 21 auxiliary slot. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0019] like Figure 1-3 The pipe crimping tool shown in the figure comprises a placement groove 1 for placing a flexible shaft, a clamping groove 2 for clamping a pipe fitting, a crimping upper die 3 and a crimping lower die 4 for crimping the flexible shaft and the pipe fitting, the placement groove 1 and the clamping groove 2 are fixedly connected, a plurality of crimping channels 5 are opened at the top of the crimping lower die 4, and a crimping interface 6 matching the crimping channels 5 is installed at the bottom of the crimping upper die 3;

[0020] A scale line 7 is provided at the edge of the placement groove 1, and an anti-slip tooth groove 8 is provided at the bottom of the placement groove 1;

[0021] The clamping slot 2 includes a first clamping tube 9 fixedly connected to the placement slot 1 and a second clamping tube 10 threadedly connected to the first clamping tube 9 , and fixing bolts 11 are installed on both the first clamping tube 9 and the second clamping tube 10 .

[0022] Based on the above, when working, assemble the flexible shaft and the pipe fitting to be crimped, place the flexible shaft section in the placement groove 1, and clamp the pipe fitting in the clamping groove 2. Adjust the extension distance of the flexible shaft according to the crimping position, and adjust it accurately with reference to the scale line 7. Then tighten the fixing bolt 11 to fix the relative position of the flexible shaft and the pipe fitting to prevent loosening and slipping, which is convenient for subsequent crimping.

[0023] After assembly is completed, the required crimping pipe fittings are placed on the corresponding crimping interface 6, and the upper crimping die 3 and the lower crimping die 4 are engaged by the crimping machine, and appropriate mechanical force is applied for crimping. After crimping, the upper and lower dies are opened after standing for a few seconds to complete the crimping process.

[0024] Furthermore, the shapes of the plurality of crimping joints 6 are set to be various, including trapezoidal, circular or other crimping shapes. When crimping pipe fittings, crimping joints 6 of different shapes are selected according to the crimping requirements for crimping operations. By optimizing the shape of the crimping joints 6, stress concentration on the pipe fittings during the crimping process is reduced to prevent cracking, and the crimping channel 5 is reasonably designed to ensure uniform distribution of the crimping force. At the same time, the upper and lower mold fixing structures are adopted to effectively prevent deformation of the pipe fittings after crimping.

[0025] Auxiliary platforms 12 extending outward are provided on the outer walls of both sides of the crimping lower die 4, and lifting and lowering crimping support members are installed on the two auxiliary platforms 12 to support and stabilize the flexible shaft and pipe fittings during the crimping process;

[0026] When the pipe fitting and the flexible shaft are crimped and placed on the corresponding crimping port 6 , crimping support members can be used on both sides of the crimping lower die 4 to support the flexible shaft and the pipe fitting during the crimping process.

[0027] The crimping support member includes a lower clamping plate 14 and an upper clamping plate 13 that are movable on the auxiliary platform 12. The upper clamping plate 13 is attached to the top of the lower clamping plate 14. The ends of the upper clamping plate 13 and the ends of the lower clamping plate 14 are movably hinged. Telescopic rods 15 are installed at the bottom of both ends of the lower clamping plate 14. The bottom ends of the telescopic rods 15 are fixed to the surface of the auxiliary platform 12.

[0028] Furthermore, the upper clamping plate 13 is movably hinged on the lower clamping plate 14 and can be flipped and rotated, so that the crimped pipe fitting and the flexible shaft part are clamped between the upper clamping plate 13 and the lower clamping plate 14 for stabilization and support.

[0029] A screw rod 16 penetrating the auxiliary platform 12 is provided below the middle of the lower clamping plate 14, a knob 17 is installed at the bottom end of the screw rod 16, a screw tube 18 fixed on the auxiliary platform 12 is sleeved outside the screw rod 16, and a bearing 19 is installed at the top end of the screw rod 16, and the bearing 19 is fixed to the bottom of the lower clamping plate 14;

[0030] Furthermore, the lower clamping plate 14 can be raised and lowered by rotating the screw 16 to rotate in the screw tube 18 on the auxiliary platform 12. The screw 16 is raised and lowered along the direction of the screw tube 18, and the lower clamping plate 14 is driven to be raised and lowered through the bearing 19. In this process, the telescopic rod 15 automatically extends and retracts to limit and stabilize the lifting and lowering of the lower clamping plate 14, thereby achieving height adjustment of the lower clamping plate 14, so as to change the height of the lower clamping plate 14 and the upper clamping plate 13, so as to facilitate the lower clamping plate 14 and the upper clamping plate 13 to clamp and stabilize the flexible shaft and pipe fittings during the crimping process.

[0031] Magnets 20 are installed at the ends of the upper clamping plate 13 and the lower clamping plate 14 away from the movable hinge, and a plurality of auxiliary grooves 21 are opened at the bottom of the upper clamping plate 13 and the top of the lower clamping plate 14. The auxiliary grooves 21 of the crimping support members on the two auxiliary platforms 12 are respectively located on both sides of the crimping channel 5 and the crimping interface 6.

[0032] Furthermore, the auxiliary groove 21 is used to accommodate the pipe fittings and flexible shafts during the crimping process, clamp and stabilize them, and the magnets 20 at the ends of the lower clamping plate 14 and the upper clamping plate 13 are adsorbed and limited after the two are flipped and fitted together, thereby achieving effective clamping and limiting of the pipe fittings and flexible shafts.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. Pipe crimping tool, characterized in that: It includes a placement groove for placing a flexible shaft, a clamping groove for clamping a pipe fitting, a crimping upper die and a crimping lower die for crimping the flexible shaft and the pipe fitting. The placement groove and the clamping groove are fixedly connected, a plurality of crimping channels are opened at the top of the crimping lower die, and a crimping interface matching the crimping channels is installed at the bottom of the crimping upper die.

2. The pipe crimping tool according to claim 1, characterized in that: Scale lines are arranged at the edge of the placement groove, and anti-slip tooth grooves are arranged at the bottom of the placement groove.

3. The pipe crimping tool according to claim 1, characterized in that: The clamping groove comprises a first clamping tube fixedly connected to the placement groove and a second clamping tube threadedly connected to the first clamping tube, and fixing bolts are installed on both the first clamping tube and the second clamping tube.

4. The pipe crimping tool according to claim 1, characterized in that: Auxiliary platforms extending outward are arranged on the outer walls on both sides of the crimping lower die, and lifting and lowering crimping support members are installed on the two auxiliary platforms. The crimping support members support and stabilize the flexible shaft and the pipe fitting during the crimping process.

5. The pipe crimping tool according to claim 4, characterized in that: The crimping support comprises a lower clamping plate and an upper clamping plate which can be raised and lowered on the auxiliary platform, the upper clamping plate is attached to the top of the lower clamping plate, the end of the upper clamping plate is movably hinged with the end of the lower clamping plate, telescopic rods are installed at the bottom of both ends of the lower clamping plate, and the bottom end of the telescopic rods is fixed to the surface of the auxiliary platform.

6. The pipe crimping tool according to claim 5, characterized in that: A screw rod penetrating the auxiliary platform is arranged below the middle of the lower clamping plate, a knob is installed at the bottom end of the screw rod, a screw tube fixed on the auxiliary platform is sleeved on the outside of the screw rod, a bearing is installed at the top end of the screw rod, and the bearing is fixed at the bottom of the lower clamping plate.

7. The pipe crimping tool according to claim 5, characterized in that: Magnets are installed at the ends of the upper and lower clamps away from the movable hinges, and a plurality of auxiliary grooves are opened at the bottom of the upper clamp and the top of the lower clamp. The auxiliary grooves of the crimping supports on the two auxiliary platforms are respectively located on both sides of the crimping channel and the crimping interface.

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