CN201470762U

CN201470762U - Hole flanging device for bicycle frame front joint

Info

Publication number: CN201470762U
Application number: CN200920307429XU
Authority: CN
Inventors: 夏建忠; 夏正平; 刘小勇
Original assignee: CHANGZHOU HENGXI'ANG VEHICLE MATERIAL Co Ltd
Current assignee: CHANGZHOU HENGXI'ANG VEHICLE MATERIAL Co Ltd
Priority date: 2009-08-05
Filing date: 2009-08-05
Publication date: 2010-05-19
Anticipated expiration: 2019-08-05

Abstract

The utility model relates to a hole flanging device for bicycle frame front joint comprising a fixedly disposed die frame. A cavity die is attached inside the die frame, a pull rod is disposed on the lower portion of the cavity mold. A screw rod is provided on the upper end of the pull rod, and a connection block is provided on the lower end of the pull rod. A connection block is connected to a traction assembly, which is capable of driving the pull rod to move along the upward and the downward direction. A core is provide inside the cavity die, having a screw pore matched with the screw rod of the pull rod at the center thereof. According to the utility model, the hole flanging device for the bicycle frame front joint has high precision, high pulling height, uniform speed of hydraulic or air cylinder pulling speed, easily ensured dimension; the upper surface of the cavity die is open, the mounting operation of the workpiece is convenient, the core is in a cone shape with bigger upper end and smaller lower end, an oblique cone surface is provided on the lower end of the central screw pore, so that the screw connection between the core and the pull rod can be conveniently ensured, and the working efficiency is high; machining the hole flanging device for the bicycle frame front joint by the utility model, the yield is high, and the tube pore is not likely to be broken.

Description

Cycle frame front connector hole flanging device

Technical field

The utility model relates to a kind of bicycle assembly parts processing unit (plant), particularly a kind of cycle frame front connector hole flanging device.

Background technology

Cycle frame is the vitals that supports whole vehicle, and as the skeleton of whole car, its security and aesthetic property are most important.Because body frame structure for automotive is comparatively special, generally all be welded by the parts assembly unit, front connector has body as one of parts, and its significant feature is to connect upper and lower beam by the body side, and simultaneously the body handlebar that is rotationally connected is therefore very important.The tradition front connector mostly is to have welding hole in the body side, the upper and lower beam end of vehicle frame and welding hole contraposition welding, this connected mode has the following disadvantages: one, because upper and lower beam end of vehicle frame and front connector contact area are less, therefore cause bonding area less, exist to connect unstable potential safety hazard; During two, owing to upper and lower beam end of vehicle frame and front connector welding, welding bead is at the front connector outer surface, in case the junction paint flake, just easily by corrosion; Three, because welding bead is at the front connector outer surface, so the surface, junction can't accomplish smooth smoothly, influences overall appearance.

Therefore, existing at present enterprise makes the one-shot forming front connector with tube connector, but the processing of the connection pore of front connector is not very convenient, needs a kind of isolated plant easy to use of design.

The utility model content

The purpose of this utility model is to provide a kind of cycle frame front connector hole flanging device easy to use.

The technical scheme that realizes the utility model purpose is: a kind of cycle frame front connector hole flanging device, have fixedly install framed, the described framed interior die that connects, the die bottom is provided with pull bar, and the pull bar upper end is provided with screw rod, and the pull bar lower end is provided with contiguous block, contiguous block connects traction component, but pull bar is moved by the effect above-below direction of traction component, also is provided with core in the die, and the core center is provided with the screw that the screw rod with pull bar matches.

Above-mentioned cycle frame front connector is up big and down small taper type with the core of hole flanging device, and the following nose end of its screw has scalene cone, and the screw rod upper end of described pull bar is conical.

Above-mentioned cycle frame front connector is the hydraulic haulage assembly with the traction component of hole flanging device.

Above-mentioned cycle frame front connector is a cylinder with the traction component of hole flanging device.

The utlity model has following characteristics: (1) the utility model front connector body hole flanging precision height, stretch highly high, hydraulic pressure or cylinder draw speed are even, and size guarantees easily; (2) open wide above the utility model die, clamping workpiece is easy to operate, and core is up big and down small taper type, and the center screw lower end is provided with scalene cone, and what can guarantee core and pull bar very easily is threaded high efficiency; (3) adopt the utility model processing front connector body hole flanging yield rate height, pore is cracky not.

Description of drawings

For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein

Fig. 1 is a generalized section of the present utility model.

The specific embodiment

(embodiment one)

See Fig. 1, the utlity model has fixedly install framed 1, pass through the removable connection die 2 of securing member in framed 1, die 2 opened upper end, the bottom is provided with pull bar 3, pull bar 3 upper ends are provided with screw rod 31, pull bar 3 lower ends are provided with contiguous block 32, contiguous block 32 connects hydraulic haulage assembly 4, and pull bar 3 can be done under the effect of hydraulic haulage assembly 4 and move up and down, and also is provided with core 5 in the die 2, core 5 centers are provided with the screw 51 that the screw rod 31 with pull bar 3 matches, core 5 is up big and down small taper type, and the following nose end of its screw 51 has scalene cone, and screw rod 31 upper ends of pull bar 3 are conical.

When the processing front connector, hydraulic haulage assembly 4 at first is in the extreme higher position, this moment, the screw rod 31 of pull bar 3 stretched in the die 2, operating personnel put into die 2 with semi-finished product front connector 9, the tube connector of front connector 9 is enclosed within on the screw rod 31 of pull bar 3 naturally, because die 2 opened upper end, therefore it is very convenient to place front connector 9, then core 5 is put into the tube connector of semi-finished product front connector 9, because the tube connector of semi-finished product front connector 9 is less than the maximum gauge of core 5 at its caliber of first being processed, core 5 is up big and down small taper type simultaneously, after putting into front connector 9, core 5 is in and pull bar 3 coaxial positions substantially, in addition, because 51 times nose ends of screw of core 5 have scalene cone, screw rod 31 upper ends of pull bar 3 are conical, therefore after core 5 was put into, its screw 51 natures docked with the screw rod 31 of pull bar 3, and operating personnel rotate core 5 then, core 5 is threaded with pull bar 3, it is descending by pull bar 3 drive cores 5 to control hydraulic haulage assembly 4 afterwards, finishes hole flanging work, and core 5 rises to start position again then, operating personnel's backward rotation core 5, make itself and pull bar 3 break away from annexation, take off front connector 9 and core 5, finish a hole flanging job.

(embodiment two)

See Fig. 1, the utlity model has fixedly install framed 1, pass through the removable connection die 2 of securing member in framed 1, die 2 opened upper end, the bottom is provided with pull bar 3, pull bar 3 upper ends are provided with screw rod 31, pull bar 3 lower ends are provided with contiguous block 32, contiguous block 32 connects cylinder 4, and pull bar 3 can be done under the effect of cylinder 4 and move up and down, and also is provided with core 5 in the die 2, core 5 centers are provided with the screw 51 that the screw rod 31 with pull bar 3 matches, core 5 is up big and down small taper type, and the following nose end of its screw 51 has scalene cone, and screw rod 31 upper ends of pull bar 3 are conical.

Claims

1. a cycle frame front connector hole flanging device has framed (1) that fixedly installs; It is characterized in that: connect die (2) in described framed (1), die (2) bottom is provided with pull bar (3), pull bar (3) upper end is provided with screw rod (31), pull bar (3) lower end is provided with contiguous block (32), contiguous block (32) connects traction component (4), pull bar (3) be subjected to traction component (4) but the effect above-below direction move, also be provided with core (5) in the die (2), core (5) center is provided with the screw (51) that the screw rod (31) with pull bar (3) matches.

2. cycle frame front connector hole flanging device according to claim 1 is characterized in that: described core (5) is up big and down small taper type, and the following nose end of its screw (51) has scalene cone, and screw rod (31) upper end of described pull bar (3) is conical.

3. cycle frame front connector hole flanging device according to claim 1 is characterized in that: described traction component (4) is the hydraulic haulage assembly.

4. cycle frame front connector hole flanging device according to claim 1 is characterized in that: described traction component (4) is a cylinder.