CN108296831A - A kind of processing and positioning device of monoblock type shift fork - Google Patents

Abstract

A kind of processing and positioning device of monoblock type shift fork, including workbench, bottom plate, articles holding table, bottom plate is fixed on the table top of workbench, articles holding table is arranged in parallel in the top of bottom plate, it is machined with collet on the table top of articles holding table, shift fork matching is positioned over above collet, shift fork is by open section, linkage section forms, guide sleeve is fixed on articles holding table, the wall surface of guide sleeve is machined with vertical helicla flute, left port detent mechanism is located at the left side of open section, right output port detent mechanism is located at the right side of open section, linkage section detent mechanism is located at linkage section, on articles holding table, hold-down mechanism includes spinning axis, cross bar, lifting shaft, T-type casing, turning set；After precise positioning of the shift fork on articles holding table being realized by left port detent mechanism, right output port detent mechanism, linkage section detent mechanism, shift fork is compressed by hold-down mechanism, later, work of numerical control machine can process corresponding hole on shift fork, apparatus structure is compact, ingenious in design, positioning accuracy is high, improves the machining accuracy of product.

Description

A processing and positioning device for an integral shift fork

technical field

The invention relates to a processing and positioning device for an integral shift fork.

Background technique

In order to reduce the weight of the transmission and reduce fuel consumption, it is a trend to reduce the weight and integration of transmission parts. The shift fork with inserts is a new type of structure for the shift fork of the current automobile transmission. It is widely used in DCT transmissions and new manual transmissions. , but because the shift block and the shift fork are concentrated on one part, the processing size is complicated and the positioning is difficult. The production workshop often needs an integral shift fork processing and positioning device.

Contents of the invention

In view of the deficiencies in the above problems, the present invention provides a processing and positioning device for an integral shift fork.

In order to achieve the above purpose, the present invention provides a processing and positioning device for an integral shift fork, including:

A workbench, a base plate, and a storage table, the base plate is fixed on the table of the workbench, and the storage table is arranged in parallel above the base plate;

A bottom bracket is processed on the table of the storage table, and the shift fork is matched and placed above the bottom bracket. The shift fork is composed of an opening section and a connecting section, and two guide sleeves are fixed on the storage table. The wall surface of the guide sleeve is processed with a vertical spiral groove;

a left port positioning mechanism, the left port positioning mechanism is located on the left side of the opening section;

a right port positioning mechanism, the right port positioning mechanism is located on the right side of the opening section;

A connecting segment positioning mechanism, the connecting segment positioning mechanism is located at the connecting segment and on the storage table;

A pressing mechanism, the pressing mechanism includes a spinning shaft, a cross bar, a lifting shaft, a T-shaped sleeve, and a rotating sleeve.

As a further improvement of the present invention, the vertical spiral groove is divided into a straight groove section and an inclined groove section, the straight groove section is vertical, and the inclined groove section is deflected toward the center of the shift fork.

As a further improvement of the present invention, the left port positioning mechanism includes a left baffle and a left flange fixed on the bottom support, and the left flange is fixedly mounted with a left head screw and equipped with a left positioning nut.

As a further improvement of the present invention, the right port positioning mechanism includes a right baffle plate and a right edge plate fixed on the bottom bracket, and the right edge plate is fixedly installed with a right head screw and equipped with a right positioning nut.

As a further improvement of the present invention, the head of the right plug screw is covered with an elastic block and the tail is fixed with a force applying rod.

As a further improvement of the present invention, the connecting section positioning mechanism includes a fixedly connected movable bottom plate and a column, the movable bottom plate is processed with a long waist groove that can be relatively adjusted on the storage table, and the wall surface of the column is in contact with the column. The above-mentioned connecting segment matches.

As a further improvement of the present invention, the top end of the lifting shaft is fixed to the cross bar, and the bottom end of the lifting shaft is fixedly connected to the T-shaped sleeve, and the T-shaped sleeve is equipped with a pin shaft and is supported by the bottom plate. key guide inside.

As a further improvement of the present invention, the rotating sleeve fits on the outside of the T-shaped sleeve, and a transverse spiral groove is processed on the wall surface of the rotating sleeve corresponding to the pin shaft, and a horizontal spiral groove is processed on the wall of the rotating sleeve corresponding to the pin. A handle is installed on the other wall at the shaft.

As a further improvement of the present invention, there are two spinning shafts, the lower end of the spinning shaft passes through the cross bar and is supported by a plane bearing and a bearing seat, and a pin shaft I is fixed in the middle of the spinning shaft and is supported by the Guided by a vertical spiral groove, the pressing block is fixed on the top of the spinning shaft.

As a further improvement of the present invention, the pressing block is splined with the spinning shaft and equipped with a return spring.

The beneficial effects of the present invention are:

After the precise positioning of the shift fork on the storage table is realized by the left port positioning mechanism, the right port positioning mechanism and the connecting section positioning mechanism, the shift fork is pressed tightly by the pressing mechanism, and then the CNC machine tool can work on the shift fork. The hole, the device has a compact structure, ingenious design, high positioning accuracy, which effectively improves the processing accuracy and processing efficiency of the product.

Description of drawings

Figure 1 is a top view of the storage table;

Fig. 2 is a front view of a processing and positioning device for an integral shift fork of the present invention (the pressing mechanism part is omitted);

Fig. 3 is a front view of a processing and positioning device for an integral shift fork of the present invention (the pressing mechanism is complete);

Fig. 4 is the top view of shift fork;

Figure 5 is a partial enlarged view of the pressing mechanism;

The enlarged view of the position B in Fig. 6 and Fig. 5;

Figure 7 is a top view of the left port positioning mechanism;

Figure 8 is a front view of the left port positioning mechanism;

Fig. 9 is an enlarged view of position A in Fig. 1 (right port positioning mechanism);

Fig. 10 is an enlarged view of the connecting section positioning mechanism in Fig. 1;

Figure 11 is a partial front view of the pressing mechanism;

Figure 12 is a top view of Figure 11;

Fig. 13 is a schematic view (partial) of the internal assembly of the pressing mechanism;

FIG. 14 is an exploded schematic diagram of the assembly of FIG. 13 .

In the figure: 1. Workbench; 2. Bottom plate; 3. Guide sleeve; 31. Vertical spiral groove; 311. Straight groove section; 312. Inclined groove section; 4. Storage table; 41. Bottom bracket; 5. Shift fork ; 51, opening section; 52, connecting section; 6, right port positioning mechanism; 61, right baffle plate; 62, right flange plate; 63, right top screw; Elastic block; 7, left port positioning mechanism; 71, left baffle plate; 72, left flange plate; 73, left top screw; 74, left positioning nut; 8, pressing mechanism; 81, key; 82, rotating sleeve; 821 , horizontal spiral groove; 822, handle; 83, pin shaft; 84, T-shaped sleeve; 85, lifting shaft; 86, cross bar; 861, plane bearing; 862, bearing seat; 87, spinning shaft; 871, pin shaft 1; 88, back-moving spring; 89, pressing block; 9, connection section positioning mechanism; 91, movable base plate; 911, long waist groove; 92, column.

Detailed ways

As shown in Fig. 1 and Fig. 2, a processing and positioning device for an integral shift fork according to the embodiment of the present invention includes: the base plate 2 is fixed on the table surface of the workbench 1, and the storage table 4 is arranged in parallel above the base plate 2 The table of the storage table 4 is processed with a bottom bracket 41, and the shift fork 5 is matched and placed above the bottom bracket 41. The shift fork 5 is composed of an opening section 51 and a connecting section 52 (shown in FIG. 4 ), and the top of the storage table 4 is also fixed. There are two guide sleeves 3, and the wall surface of the guide sleeve 3 is processed with a vertical spiral groove 31. The vertical spiral groove 31 is divided into a straight groove section 311 and an inclined groove section 312. The straight groove section 311 is vertical, and the inclined groove section 312 moves forward The center of the fork 5 is deflected (shown in Fig. 5 and Fig. 6); the left port positioning mechanism 7 is located on the left side of the opening section 51, and the left port positioning mechanism 7 includes a left baffle plate 71 fixed on the bottom bracket 41, a left flange plate 72, the left top screw 73 is fixedly installed on the left flange plate 72 and is equipped with a left positioning nut 74 (shown in Fig. 7 and Fig. 8); the right port positioning mechanism 6 is located on the right side of the opening section 51, and the right port positioning mechanism 6 includes a fixed On the right baffle plate 61 on the bottom bracket 41, the right edge plate 62, the right top screw 63 is fixedly installed on the right edge plate 62 and is equipped with a right positioning nut 64, the head of the right top screw 63 is covered with an elastic block 65 afterbody is fixed with The force applying rod 631 (shown in Figure 9); the connecting section positioning mechanism 9 is located at the connecting section 52 and on the storage platform 4, the connecting section positioning mechanism 9 includes a fixedly connected movable base plate 91 and a column 92, and the movable base plate 91 is processed with a long The waist groove 911 can be adjusted relatively on the storage table 4, and the wall surface of the column 92 coincides with the connecting section 52 (as shown in Figure 10); as shown in Figure 3 and Figure 5, the pressing mechanism 8 includes a spinning shaft 87 and a cross bar 86 , lifting shaft 85, T-shaped sleeve 84, rotating sleeve 82, fixed cross bar 86 at the top of lifting shaft 85, and the bottom end of lifting shaft 85 is fixedly connected with T-shaped sleeve 84 (shown in Figure 11), on T-shaped sleeve 84 A pin shaft 83 is installed and guided by the key 81 in the bottom plate 2 (as shown in Figure 13), the rotating sleeve 82 is fitted on the outside of the T-shaped sleeve 84, and a horizontal spiral is processed on the wall surface of the rotating sleeve 82 corresponding to the pin shaft 83. Groove 821, handle 822 (shown in Figure 12) is installed on the other wall surface of rotating sleeve 82 corresponding pin shaft 83 place, totally two spinning shafts 87, and the lower end of spinning shafts 87 passes through cross bar 86 and is controlled by plane bearing 861, The bearing block 862 is supported, and the middle part of the spinning shaft 87 is fixed with a pin shaft I871 and is guided by the vertical spiral groove 31. The pressing block 89 is fixed on the top of the spinning shaft 87, and the pressing block 89 and the spinning shaft 87 are matched and matched by splines. Return spring 88 (shown in Figure 5) is arranged.

After the precise positioning of the shift fork on the storage table is realized by the left port positioning mechanism, the right port positioning mechanism and the connecting section positioning mechanism, the shift fork is pressed tightly by the pressing mechanism, and then the CNC machine tool can work on the shift fork. The hole, the device has a compact structure, ingenious design, high positioning accuracy, which effectively improves the processing accuracy and processing efficiency of the product.

In specific use, for the convenience of understanding the present invention, it will be described in conjunction with the accompanying drawings;

Before the shift fork is put in, according to the design drawings, adjust the positions of the left port positioning mechanism and the connecting section positioning mechanism. The left port positioning mechanism rotates the left top screw and then tightens the left positioning nut. The connecting section positioning mechanism passes through the movable bottom plate. Tighten the screws after the slide on the long waist groove reaches the designed position.

Put the shift fork on the bottom support of the storage table, the left side of the shift fork is against the left baffle, and the connecting part is attached to the surface of the column, and then the right top screw is turned by the force lever, so that the elastic block of the right top screw is in line with the The surface of the shift fork fits together, and the position of the shift fork is uniquely determined. At the same time, during the drilling process, the elastic block plays a role of shock absorption to a certain extent, and then the pressing mechanism presses the shift fork.

The working conditions of the pressing mechanism are as follows: manually rotate the handle, and the rotating sleeve rotates correspondingly, that is, the pin shaft moves relative to the horizontal spiral groove. When the pin shaft 83 moves horizontally at the transverse spiral groove 821, the lifting shaft is in a stable state (ie the processing position of the shift fork). After the processing is completed, when the pin shaft 83 moves from the low position to the high position at the transverse spiral groove 821, the lifting shaft 85 resets upward under the action of the upper return spring. The lifting shaft only moves up and down (because the lifting shaft is fixedly connected to the T-shaped sleeve, and the T-shaped sleeve is guided by the key, so the lifting shaft can only move up and down in a straight line), the lifting shaft transmits the lifting motion to the spinning shaft through the cross bar, and the spinning shaft During the straight-up process of the finale shaft, since the pin shaft I is installed on it, the pin shaft I is guided by the vertical spiral groove. When the pin shaft I is guided by the straight groove section, it appears as the linear motion of the spinning shaft, and the pressing block correspondingly moves. Straight line movement; when the pin shaft I is guided by the chute section, it manifests as a combined motion of the linear motion and the rotary motion of the spinning shaft, and the pressing block deflects while moving in a straight line;

Specifically, turn the handle manually so that the pin shaft I reaches the highest point of the chute section, then put the shift fork at the bottom bracket, and slowly reset the handle. While descending, the rotation to the inside of the shift fork occurs slowly. When the pin shaft I completes the chute section, the pressing block is perpendicular to the edge of the shift fork, the pressing block no longer rotates, and the pin shaft I continues to complete the straight groove section , the compression block compresses the shift fork during the process of descending.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of processing and positioning device of monoblock type shift fork, which is characterized in that including：

Workbench (1), bottom plate (2), articles holding table (4), the bottom plate (2) is fixed on the table top of the workbench (1), described to set Object platform (4) is arranged in parallel in the top of the bottom plate (2)；

Collet (41) is machined on the table top of the articles holding table (4), shift fork (5) matching is positioned over above the collet (41), institute It states shift fork (5) to be made of open section (51), linkage section (52), two guide sleeves (3) is further fixed on the articles holding table (4), The wall surface of the guide sleeve (3) is machined with vertical helicla flute (31)；

Left port detent mechanism (7), the left port detent mechanism (7) are located at the left side of the open section (51)；

Right output port detent mechanism (6), the right output port detent mechanism (6) are located at the right side of the open section (51)；

Linkage section detent mechanism (9), the linkage section detent mechanism (9) is located at the linkage section (52), the articles holding table (4) On；

Hold-down mechanism (8), the hold-down mechanism (8) include spinning axis (87), cross bar (86), lifting shaft (85), T-type casing (84), turning set (82).

2. a kind of processing and positioning device of monoblock type shift fork according to claim 1, it is characterised in that：The vertical spiral Slot (31) is divided into straight slot (311), chute section (312), and the straight slot (311) vertically, toward described dial by the chute section (312) Pitch the center deviation of (5).

3. a kind of processing and positioning device of monoblock type shift fork according to claim 1, it is characterised in that：The left port is fixed Position mechanism (7) includes being fixed on right baffle-plate (71), left folding side plate (72) on the collet (41), on the left folding side plate (72) Left top screw (73) is fixedly mounted and is furnished with left location nut (74).

4. a kind of processing and positioning device of monoblock type shift fork according to claim 1, it is characterised in that：The right output port is fixed Position mechanism (6) includes being fixed on right shell body (61) on the collet (41), right folding side plate (62), on the right folding side plate (62) Right top screw (63) is fixedly mounted and is furnished with right location nut (64).

5. a kind of processing and positioning device of monoblock type shift fork according to claim 4, it is characterised in that：The right top spiral shell The head of nail (63) is cased with elastomer block (65) tail portion and is fixed with force application rod (631).

6. a kind of processing and positioning device of monoblock type shift fork according to claim 1, it is characterised in that：The linkage section is fixed Position mechanism (9) includes the movable floor (91) being fixedly connected and column (92), and long gain is machined on the movable floor (91) (911) relative adjustment can be done on the articles holding table (4), wall surface and the linkage section (52) of the column (92) coincide.

7. a kind of processing and positioning device of monoblock type shift fork according to claim 1, it is characterised in that：The lifting shaft (85) cross bar (86) is fixed on top, and the bottom end of the lifting shaft (85) is fixedly connected with the T-type casing (84), the T-type Axis pin (83) is installed on casing (84) and is oriented to by the key (81) in the bottom plate (2).

8. a kind of processing and positioning device of monoblock type shift fork according to claim 7, it is characterised in that：The turning set (82) it is linked on the outside of the T-type casing (84), corresponds on the wall surface of the turning set (82) and processed at the axis pin (83) There is lateral helicla flute (821), handle is installed on another wall surface at the corresponding axis pin (83) of the turning set (82) (822)。

9. a kind of processing and positioning device of monoblock type shift fork according to claim 1, it is characterised in that：The spinning axis (87) totally two, spinning axis (87) lower end passes through the cross bar (86) and is propped up by plane bearing (861), bearing block (862) Support, the spinning axis (87) are fixedly arranged in the middle of axis pin I (871) and are oriented to by the vertical helicla flute (31), compact heap (89) It is fixed on the top of the spinning axis (87).

10. a kind of processing and positioning device of monoblock type shift fork according to claim 9, it is characterised in that：The compact heap (89) by spline fitted and it is furnished with resetting spring (88) with the spinning axis (87).