Motorcycle handlebar tube connecting seat handlebar tube column turning clamp

Abstract

The utility model provides a motorcycle handlebar tube connecting seat handlebar tube column turning clamp which comprises a rotary table, a standard table, a pressing plate, a bolt and a balance block. A reference table is arranged on the turntable, and a positioning column I and a positioning column II are arranged on the reference table; the pressing plate is in an L shape, one folded edge of the L-shaped pressing plate is in a circular ring shape, the other folded edge of the L-shaped pressing plate is in a long rectangle shape, and a semicircular notch matched with the root of a handle pipe column is arranged at the front end of the long rectangle. The balance block is fixed on the turntable on the opposite surface of the reference table; wherein the fixing position and the inclination of the reference table are based on the fact that the axis of the tubular column is coaxial with the axis of the rotary table after the connecting seat blank is fixed on the reference table. The clamp has the advantages that the root of the handle pipe column can be fixedly clamped, it is guaranteed that the axis of the handle pipe column cannot deviate during clamping and fixing or turning, and the machining quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a motorcycle handlebar pipe connecting seat handlebar pipe column lathe machining technology, especially to a motorcycle handlebar pipe connecting seat handlebar pipe column lathe machining fixture. BACKGROUND

[0002] The motorcycle handlebar pipe connecting seat is a connecting piece between the handlebar and the direction column, and its shape is relatively complex; one end is a through hole (usually referred to as a direction column hole) sleeved on the direction column, and the other end is a cylindrical rod (usually referred to as a handlebar pipe column) inserted into the inner hole of the handlebar pipe, and the two are connected together through a connecting plate, and the axes of the two are set at a set angle. In addition, a locking step is arranged on the opposite side of the direction column hole cylindrical rod, and a locking gap and a locking hole are further arranged on the locking step; a fixed step is further arranged beside the direction column hole, and a connecting through hole is further arranged on the fixed step for fixing other parts (such as brake lines) of the motorcycle on the motorcycle handlebar pipe connecting seat (see Figure 1 ) The blank of the motorcycle handlebar pipe connecting seat (hereinafter referred to as the connecting seat blank) is usually an aluminum alloy pressure casting part, which is formed into a set shape through aluminum alloy pressure casting, and then is machined to meet the design requirements (see Figure 2 ) Due to the limitation of the aluminum alloy pressure casting process, the size accuracy of the handlebar pipe column cannot meet the design requirements, and the size accuracy of the handlebar pipe column needs to be machined to meet the design requirements.

[0003] According to the machining process of the motorcycle handlebar pipe connecting seat, the direction column hole is machined first, and then the machining of other parts (such as the handlebar pipe column, the locking gap and the locking hole) is carried out based on the direction column hole after the machining of the direction column hole is completed. The existing motorcycle handlebar pipe connecting seat handlebar pipe column lathe machining method adopts a reference table on a turntable, positioning columns I and II are arranged on the reference table; the outer diameter of the positioning column I matches the inner diameter of the connecting seat direction column hole; the outer diameter of the positioning column II matches the inner diameter of the connecting through hole on the connecting seat fixed step; when the connecting seat blank is fixed and clamped, the direction column hole and the connecting through hole of the connecting seat blank are sleeved on the positioning column I and the positioning column II respectively, and the connecting seat blank is fixed on the reference table by using a pressing plate and a bolt. The fixed position and the inclination of the reference table are coaxial with the handlebar pipe column axis of the connecting seat blank fixed on the reference table, and a balance block is further arranged on the opposite surface of the reference table (see Figure 3, in the figure, a is a rotating disc, b is a reference table, c is a pressing plate, d is a bolt, A is a connecting seat blank). During turning, the rotating disc is fixed coaxially on the lathe spindle, thus the handle tube column of the connecting seat blank is turned. Since the clamping and fixing mode does not clamp or fix the handle tube column root of the connecting seat blank, the handle tube column axis is easily deviated during clamping and fixing or turning, thus it is difficult to guarantee the processing quality.

[0004] Obviously, the motorcycle handle tube connecting seat handle tube column turning method in the prior art has the problems of easy deviation of the handle tube column axis during clamping and fixing or turning, and difficult guarantee of the processing quality. SUMMARY

[0005] In order to solve the problems of easy deviation of the handle tube column axis during clamping and fixing or turning, and difficult guarantee of the processing quality in the motorcycle handle tube connecting seat handle tube column turning method in the prior art, the utility model provides a motorcycle handle tube connecting seat handle tube column turning clamp.

[0006] The utility model motorcycle handle tube connecting seat handle tube column turning clamp, including, rotating disc, reference table, pressing plate, bolt and balance weight, be provided with reference table on the rotating disc, be provided with positioning column I and positioning column II on the reference table, and the outer diameter of positioning column I and positioning column II respectively with the inner diameter of connecting seat blank direction column hole and connecting through -hole match, in addition, be provided with internal thread hole in the center of positioning column I, still be provided with handle tube column support on the rear side reference table of positioning column I, the front surface of handle tube column support be provided with with connecting seat blank handle tube column rear section outer circle match arc -shaped groove, the pressing plate is L -shaped, one of the L -shaped pressing plate's folded edge is circular ring, another folded edge is long rectangle and is provided with with handle tube column root match semicircle in the front end of long rectangle, balance weight is fixed on the rotating disc opposite side reference table, wherein, the fixed position and inclination of reference table are with connecting seat blank fixed on reference table after, handle tube column axis and rotating disc axis coaxial for the standard, the setting position and height of handle tube column support are with connecting seat blank fixed on reference table after, handle tube column rear section outer circle and arc -shaped groove close contact for the standard, the setting position and height of long rectangle folded edge of L -shaped pressing plate are with connecting seat blank fixed on reference table after, the semicircle in the front end of long rectangle folded edge and tube column support arc -shaped groove constitute fixed clamping to handle tube column root for the standard, connecting seat blank fixed on reference table refers to the direction column hole and connecting through -hole of connecting seat blank are respectively installed on positioning column I and positioning column II, and the circular ring folded edge of pressing plate is fixed on reference table through bolt with connecting seat blank.

[0007] Further, the circular ring folded edge of the L-shaped pressing plate is provided with a rectangular opening, and the width of the rectangular opening is greater than the diameter of the bolt.

[0008] Further, the back of the rotating disc is coaxially fixed with a connecting cylinder.

[0009] The beneficial technical effects of the motorcycle handle tube connecting seat handle tube column machining clamp are that the handle tube column root part can be fixed and clamped, the axis of the handle tube column will not be offset during clamping and fixing or machining, and the machining quality is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0010] BRIEF DESCRIPTION OF DRAWINGS Figure 1 is a three-dimensional schematic view of a motorcycle handle tube connecting seat;

[0011] BRIEF DESCRIPTION OF DRAWINGS Figure 2 is a three-dimensional schematic view of a motorcycle handle tube connecting seat blank;

[0012] BRIEF DESCRIPTION OF DRAWINGS Figure 3 is a three-dimensional schematic view of a prior art motorcycle handle tube connecting seat handle tube column machining clamp;

[0013] BRIEF DESCRIPTION OF DRAWINGS Figure 4 is a three-dimensional schematic view of a motorcycle handle tube connecting seat handle tube column machining clamp of the utility model;

[0014] BRIEF DESCRIPTION OF DRAWINGS Figure 5 is a three-dimensional schematic view of another angle of the motorcycle handle tube connecting seat handle tube column machining clamp of the utility model;

[0015] BRIEF DESCRIPTION OF DRAWINGS Figure 6 is a three-dimensional schematic view of a machining clamp clamping and fixing state of the utility model;

[0016] BRIEF DESCRIPTION OF DRAWINGS Figure 7 is a three-dimensional schematic view of a machining clamp pressing plate of the utility model.

[0017] In the figure, 1 is a rotating disc, 2 is a reference table, 2-1 is a positioning column I, 2-2 is a positioning column II, 2-3 is a handle tube column support, 3 is a pressing plate, 4 is a bolt, 5 is a balance block; a is a rotating disc, b is a reference table, c is a pressing plate, d is a bolt, and A is a connecting seat blank.

[0018] The motorcycle handle tube connecting seat handle tube column machining clamp of the utility model will be further described below in combination with the drawings and specific embodiments. DETAILED DESCRIPTION

[0019] Reference is made to the drawings Figure 4 , 5,6, As shown in the figure, the utility model discloses motorcycle handlebar pipe connecting seat handlebar column lathe processing fixture, including, turntable 1, datum table 2, pressing plate 3, bolt 4 and counterweight 5;The reference table is provided on the turntable, and the reference table is provided with positioning column I 2-1 and positioning column II 2-2;And the outer diameter of positioning column I and positioning column II respectively with the inner diameter of connecting seat blank direction column hole and connecting through hole match;In addition, the inner thread hole is provided in the center of positioning column I, and handlebar column support 2-3 is also provided on the rear side reference table of positioning column I;The front surface of handlebar column support is provided with the arc-shaped groove matched with handlebar column rear section outer circle of connecting seat blank;The pressing plate is L-shaped, and one folding edge of the L-shaped pressing plate is circular ring, and the other folding edge is long rectangle and is provided with the semicircle defect matched with handlebar column root in the front end of long rectangle;The counterweight is fixed on the turntable opposite to the reference table;Wherein, the fixed position and inclination of the reference table are with the coaxial handlebar column axis and the turntable axis as the criterion after connecting seat blank is fixed on the reference table;The setting position and height of handlebar column support are with the close contact of handlebar column rear section outer circle and arc-shaped groove as the criterion after connecting seat blank is fixed on the reference table;The setting position and height of long rectangle folding edge of L-shaped pressing plate are with the fixed clamping of handlebar column root formed by the semicircle defect of long rectangle folding edge front end and pipe column support arc-shaped groove as the criterion after connecting seat blank is fixed on the reference table;Connecting seat blank is fixed on the reference table refers to the direction column hole and connecting through hole of connecting seat blank are respectively fitted on positioning column I and positioning column II, and the circular ring folding edge of pressing plate is fixed on the reference table through bolt with connecting seat blank.The specific processing, first, the dynamic balance of turntable is calibrated through counterweight, then the coaxial turntable is fixed on lathe spindle;The direction column hole and connecting through hole of connecting seat blank are respectively fitted on positioning column I and positioning column II, and the accurate positioning of connecting seat blank is realized;The circular ring folding edge of pressing plate is placed on positioning column I, and the long rectangle folding edge of pressing plate points to handlebar column root of connecting seat blank, and the pressing plate is fixed on the reference table with bolt, and the fixed clamping of connecting seat blank is realized.At this time, in addition to the fact that connecting seat blank is pressed on the reference table, the semicircle defect of long rectangle folding edge front end of pressing plate also forms the fixed clamping of handlebar column root with pipe column support arc-shaped groove (see attached Figure 6 )It can be seen that the utility model processing fixture can be fixed and clamped to handlebar column root, ensure that the axis of handlebar column does not produce deviation when clamping and fixing or lathe processing, ensure the processing quality.

[0020] As one of preferred technical schemes, the circular ring folding edge of the L-shaped pressing plate is provided with a rectangular opening, and the width of the rectangular opening is greater than the diameter of the bolt. In this way, when the connecting seat blank is installed or removed, the bolt does not need to be unscrewed from the reference table; instead, the bolt is only loosened, and the pressing plate is pulled out from the bolt along one side of the rectangular opening; and then the connecting seat blank can be installed or removed. This improves the work efficiency, simplifies the operation, and reduces the labor intensity.

[0021] As one of preferred technical schemes, the back surface of the rotating disc is coaxially and fixedly provided with a connecting cylinder. The coaxial fixing of the connecting cylinder on the back surface of the rotating disc can directly clamp the machining clamp of the utility model on the three-jaw chuck of the lathe, and any change of the lathe is not needed. When other workpieces need to be machined, the machining clamp of the utility model can be unloaded from the three-jaw chuck of the lathe.

[0022] Obviously, the motorcycle handle tube connecting seat handle tube column lathe machining clamp has the beneficial technical effect that the root part of the handle tube column can be fixed and clamped, the axis of the handle tube column will not be deviated during clamping and fixing or lathe machining, and the machining quality is ensured.

Claims

1. A machining fixture for a motorcycle handlebar tube connector seat handlebar post, characterized in that, The machining fixture includes a turntable, a reference platform, a pressure plate, bolts, and a balance block. A reference platform is mounted on the turntable, and positioning pins I and II are mounted on the reference platform. The outer diameters of positioning pins I and II match the inner diameters of the directional pin hole and the connecting through hole in the connecting seat blank, respectively. Additionally, an internal threaded hole is provided at the center of positioning pin I, and a tube support is provided on the reference platform behind positioning pin I. The front surface of the tube support has an arc-shaped groove that matches the outer diameter of the rear section of the tube in the connecting seat blank. The pressure plate is L-shaped, with one edge being annular and the other edge being rectangular, with a semi-circular notch at the front end of the rectangular edge matching the root of the tube. The balance block is fixed to the reference platform. On the opposite turntable; wherein, the fixed position and inclination of the reference platform are based on the coaxiality of the column axis and the turntable axis after the connecting seat blank is fixed on the reference platform; the setting position and height of the column support are based on the tight contact between the outer circle of the rear section of the column and the arc groove after the connecting seat blank is fixed on the reference platform; the setting position and height of the long rectangular folded edge of the L-shaped pressure plate are based on the semi-circular notch at the front end of the long rectangular folded edge and the arc groove of the column support forming a fixed clamping of the root of the column after the connecting seat blank is fixed on the reference platform; the fixing of the connecting seat blank on the reference platform means that the directional column hole and the connecting through hole of the connecting seat blank are respectively fitted on the positioning column I and the positioning column II, and the annular folded edge of the pressure plate fixes the connecting seat blank on the reference platform with bolts.

2. The motorcycle handlebar tube connector seat handlebar column machining fixture according to claim 1, characterized in that, The L-shaped pressure plate has a rectangular opening on its annular folded edge, and the width of the rectangular opening is greater than the diameter of the bolt.

3. The motorcycle handlebar tube connector seat handlebar column machining fixture according to claim 1, characterized in that, A connecting cylinder is coaxially fixed on the back of the turntable.

Images