CN104985372B - Frame of motorcycle welding tooling head tube positioner - Google Patents

Abstract

The invention discloses a kind of frame of motorcycle welding tooling head tube positioner, in the front end of work platforms (1), front square chest (2) is set, the bottom of this front square chest (2) fixes with work platforms (1), top setting angle device (3) at front square chest (2), equipped with positioning boss (4) on described protractor (3), location bar (5) is set on this positioning boss (4), the axial line of location bar (5) overlaps with the axial line of positioning boss (4), upper end suit pressing plate (6) in location bar (5), pressing plate (6) can pass through nut check.The present invention is reasonable in design, simple in construction, has interchangeability completely, accurate positioning, compress quickly, convenient disassembly flexible and changeable, adapt to various needs, versatility is good.

Description

Motorcycle frame welding tool head tube positioning device

technical field

The invention belongs to the technical field of fixtures, and in particular relates to a positioning device for a head pipe of a motorcycle frame welding tool.

Background technique

With the continuous development of science and technology, the production situation of the machinery industry has undergone significant changes, and the production of multiple varieties and small batches has taken a great advantage. Taking motorcycles as an example, motorcycle products are constantly being updated. Often a product will be replaced by a new product after two to three years of continuous production. In this way, the original traditional production preparation work needs to be matched with one process or one product. The production method of a set of special fixtures is extremely unsuitable for this production characteristic, mainly manifested in:

1) It is not economical to use special tooling for small batch production, and the use mode: design—manufacture—use—scrap. Spend a lot of manpower and material resources, and the product cost is high.

2) Traditional production technology preparation work, design and manufacture of special fixtures require a long preparation time, which cannot keep up with the needs of product launch.

3) Due to the rapid update of products, special equipment is easy to cause a backlog, especially multi-variety and various fixtures. When not producing temporarily, it will occupy the space and cause unnecessary waste.

Therefore, in terms of process equipment, it is necessary to reform its narrow specific needs, and seek an advanced fixture with low cost, short manufacturing cycle, and adaptable to constantly changing and poor product objects, so as to make it suitable for new production characteristics.

Contents of the invention

The technical problem to be solved by the present invention is to provide a head pipe positioning device of a motorcycle frame welding tool with good versatility.

The technical scheme of the present invention is as follows: a motorcycle frame welding tool head pipe positioning device, a front box (2) is arranged at the front end of the working platform (1), and the bottom end of the front box (2) is connected to the working platform (1) Phase is fixed, and an angler (3) is installed on the top of the front box (2). The angler (3) is equipped with a positioning boss (4), and a positioning rod (5) is arranged on the positioning boss (4). The axis line of the bar (5) coincides with the axis line of the positioning boss (4), and the upper end of the positioning bar (5) is fitted with a pressing plate (6), and the pressing plate (6) can be locked by a nut.

As we all know, before the motorcycle frame is welded, it is necessary to set a benchmark. Generally, there are two benchmark positions, namely the head tube and the engine suspension plate. Only after the benchmark is set can the accuracy of the frame welding be ensured. The invention is used for positioning the head tube when welding the motorcycle frame. When positioning, first remove the pressure plate, then put the head tube on the positioning rod, then put the pressure plate back on, and screw the nut to lock the pressure plate, so that the head The tube is clamped between the positioning boss and the pressure plate, the whole operation is convenient and fast, and it can ensure the firm positioning of the head tube. The angler can change the inclination angle of the head tube according to the needs to meet the inclination angle of the head tube of different models; the front box can use standard parts, and the front box of different specifications can meet the height requirements of the head tube of different models. It can be seen that the present invention has complete interchangeability, accurate positioning, fast pressing, convenient and flexible disassembly, can adapt to various needs, and has good versatility.

The working platform (1) is rectangular, and matching holes are distributed in a matrix on the top surface of the working platform (1), and matching holes are evenly arranged on the peripheral side of the working platform (1). The optional holes on the working platform can be used to splice positioning modules and fixtures with various functions to meet various needs.

The cross section of the front box (2) is "U" shape, and matching holes are evenly arranged on the left and right sides, the top surface and the back of the front box (2); the back of the front box (2) lower end is connected with the working platform ( 1) is attached to the front end surface, and the front box (2) and the working platform (1) are connected by bolts. The front box of the above structure is simple in shape and easy to process and manufacture, and the connection between the front box and the working platform is firm and reliable, and it is very convenient to install the angler on the front box.

In order to simplify the structure and facilitate operation, the angler (3) is composed of a fixed arm and a movable arm hinged to each other, wherein the fixed arm is fixed to the top of the front box (2) by bolts, and the positioning protrusion is connected to the movable arm by bolts. Taiwan (4).

In order to meet different optional requirements, evenly distributed optional holes are arranged on the fixed arm and the movable arm of the angler (3).

The positioning boss (4) is a two-stage cylindrical structure with the upper part being smaller and the lower part being larger, and the pressing plate (6) is a two-stage circular stepped structure with the upper part being larger and the lower part being smaller. The positioning boss and the pressing plate of the above structure can both extend into the head tube, and fit the end surface of the head tube through the step surface, which further improves the reliability of clamping the head tube.

Beneficial effects: the invention has reasonable design, simple structure, complete interchangeability, accurate positioning, fast pressing, convenient and flexible disassembly, can adapt to various needs, and has good versatility.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a diagram of the use state of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Figures 1 and 2, the working platform 1 is rectangular, and matching holes are arranged in a matrix on the top surface of the working platform 1, and matching holes are evenly arranged on the peripheral side of the working platform 1. The front end of work platform 1 is provided with front box 2, and the cross-section of this front box 2 is " U " shape, and the left and right sides of front box 2, the top surface and the back are evenly provided with matching holes. The back of the lower end of the front case 2 abuts against the front end of the work platform 1, and the front case 2 and the work platform 1 are connected by bolts.

As shown in Figure 1 and Figure 2, an angler 3 is set on the top of the front box 2. The angler 3 is composed of a fixed arm and a movable arm hinged to each other. optional hole. The fixed arm of angler 3 is fixed with the top of front case 2 by bolt. On the movable arm of the angler 3, the positioning boss 4 is connected by bolts, and the positioning boss 4 is a two-stage cylindrical structure with a small upper part and a larger lower part. Positioning rod 5 is set on positioning boss 4, the axis line of positioning rod 5 coincides with the axis line of positioning boss 4, and the lower end of positioning rod 5 is threadedly engaged with positioning boss 4. A pressing plate 6 is set on the upper end of the positioning rod 5. The pressing plate 6 is a two-stage circular step structure with a large upper part and a smaller lower part. The pressing plate 6 can be locked by a nut.

As shown in Fig. 3 and in conjunction with Fig. 1 and Fig. 2, the present invention locates the head tube like this:

First remove the pressure plate 6, then put the head tube 7 on the positioning rod 5, then put the pressure plate 6 back on, so that the lower end of the pressure plate 6 extends into the upper port of the head tube 7, and the lower port of the head tube 7 is inserted into the positioning protrusion. On the upper end of the platform 4, the nut is finally screwed to lock the pressing plate 6, so that the head tube 7 is clamped between the positioning boss 4 and the pressing plate 6. The inclination angle of the head tube 7 can be changed as required by operating the movable arm of the angler 3 to adapt to the inclination angle requirements of the head tubes of different models; the front box 2 of different specifications can be used to meet the height requirements of the head tubes of different models.

Claims (3)

1. A motorcycle frame welding frock head pipe positioning device is characterized in that: the front end of the work platform (1) is provided with a front box (2), and the bottom of the front box (2) is in phase with the work platform (1). Fix it, install an angler (3) on the top of the front box (2), the angler (3) is equipped with a positioning boss (4), the positioning boss (4) is provided with a positioning rod (5), and the positioning rod The axis line of (5) coincides with the axis line of the positioning boss (4), and the upper end of the positioning rod (5) is fitted with a pressing plate (6), and the pressing plate (6) can be locked by a nut; The working platform (1) is rectangular, and matching holes are distributed in a matrix on the top surface of the working platform (1), and matching holes are evenly arranged on the peripheral side of the working platform (1); The cross section of the front box (2) is "U" shape, and matching holes are evenly arranged on the left and right sides, the top surface and the back of the front box (2); the back of the front box (2) lower end is connected with the working platform ( 1) is close to the front end, and the front box (2) and the working platform (1) are connected by bolts; The positioning boss (4) is a two-stage cylindrical structure with the upper part being smaller and the lower part being larger, and the pressing plate (6) is a two-stage circular stepped structure with the upper part being larger and the lower part being smaller. 2. The motorcycle frame welding tool head tube positioning device according to claim 1, characterized in that: the angler (3) is composed of a fixed arm and a movable arm hinged to each other, wherein the fixed arm is connected to the front side through a bolt. The top of box (2) is fixed, and the positioning boss (4) is connected by bolts on the movable arm. 3. The head pipe positioning device of motorcycle frame welding tool according to claim 2, characterized in that: uniformly distributed matching holes are arranged on the fixed arm and the movable arm of the angler (3).