CN210703705U - A processing frock for tractor polymorphic type shift fork - Google Patents
A processing frock for tractor polymorphic type shift fork Download PDFInfo
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- CN210703705U CN210703705U CN201921571907.8U CN201921571907U CN210703705U CN 210703705 U CN210703705 U CN 210703705U CN 201921571907 U CN201921571907 U CN 201921571907U CN 210703705 U CN210703705 U CN 210703705U
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- shift fork
- shifting fork
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- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 238000003825 pressing Methods 0.000 claims description 42
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
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Abstract
The utility model relates to a processing frock for tractor polymorphic type shift fork, including the body and establish two sets of anchor clamps suit on the body plane, two sets of anchor clamps suit is fixed a position respectively and is compressed tightly two shift fork parts, every set of anchor clamps suit all includes three hold-down mechanism and a positioning mechanism, during the use, two shift fork parts are put respectively on corresponding positioning mechanism, after putting correctly, the adjustment is adjustable spacing makes two shift fork part fork mouths compress tightly through the hold-down mechanism after concentric, support and auxiliary stay adopt the work piece plane location mode, the auxiliary stay adopts adjustably to adapt to the change of blank size; adjustable spacing horizontal adjustable to adapt to the shift fork of different width, can be used for the tractor shift fork processing of polymorphic type, through using this frock, can once fix a position and accomplish shift fork multiaspect processing, improve shift fork machining precision and efficiency, can effectively solve traditional tractor shift fork size out of tolerance problem, deformation problem.
Description
Technical Field
The utility model relates to a tractor manufacturing technical field, concretely relates to a processing frock for tractor polymorphic type shift fork.
Background
As is well known, shifting fork parts are used as key important parts of a mechanical transmission system and mainly play a role in shifting gears, sliding gears are meshed with different gears through shifting of the shifting forks, and therefore the purpose of speed change is achieved, and the machining quality of the shifting forks relates to all links of transmission system assembly, so that the shifting forks play a vital role in realizing key functions and improving performance of the transmission system. The processing of shift fork needs dedicated anchor clamps to fix a position tightly usually, and the processingquality and the efficiency of shift fork are directly influenced in the design of shift fork anchor clamps.
The processing frock of tractor shift fork at present is various, concludes that the processing of shift fork part is accomplished in the many times location processing of mainly traditional a plurality of frocks, and the process cycle is long, and the deflection is big, and required cutter holder volume is assisted and personnel are equipped with all more, and machining efficiency is low, and intensity of labour is big, and the machining dimension is difficult to guarantee, can not satisfy the requirement of the traditional shift fork parts machining variety of tractor diversification, high quality and large output.
Patent CN207014024U discloses a shift fork processing multistation anchor clamps, including the bottom plate, first clamping station and second clamping station on the bottom plate treat the shift fork and accomplish the back at first clamping station processing, on fixing the second clamping station with the shift fork clamping, nevertheless the anchor clamps of this patent are specially to the novel shift fork of U-shaped structure and design, and anchor clamps occupation space is big, and the structure is complicated, only is applicable to the processing clamping of special construction shift fork, is not suitable for the traditional shift fork type of a large amount of uses on the tractor.
SUMMERY OF THE UTILITY MODEL
To the defect of prior art, an object of the utility model is to provide a processing frock for tractor polymorphic type shift fork can fix a position simultaneously and press from both sides two shift fork parts, and positioning mechanism is adjustable, can be applicable to the processing location of the traditional shift fork of polymorphic type on the tractor.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a processing tool for a plurality of types of shifting forks of a tractor comprises a body and two groups of clamp sleeves arranged on the plane of the body, wherein the two groups of clamp sleeves are respectively used for positioning and pressing two shifting fork parts, each group of clamp sleeves comprises three pressing mechanisms and a positioning mechanism, each positioning mechanism comprises a three-jaw positioning block, an auxiliary bearing, two bearings and an adjustable limit, one side of the plane of the body is sequentially provided with the three-jaw positioning block, the auxiliary bearing, the adjustable limit and the three pressing mechanisms of one positioning mechanism for positioning and pressing one shifting fork part, the other side of the plane of the body is sequentially provided with the three-jaw positioning block, the auxiliary bearing, the adjustable limit and the three pressing mechanisms of the other positioning mechanism for positioning and pressing the other shifting fork part, the clamp sleeves on the two sides are approximately in central symmetry arrangement, when in use, the two shifting fork parts are, after the fork parts are correctly placed, the adjustable limit is adjusted to enable the fork openings of the two shifting fork parts to be concentric and then to be pressed through the pressing mechanism.
Furthermore, the positioning mechanism combines centering and plane positioning of the outer circle surface of the shifting fork part, the outer circle of the shifting fork part is centered and positioned through the three-jaw positioning block, the auxiliary supporting height is adjustable, the shifting fork part is subjected to plane positioning through the auxiliary supporting and the supporting, the adjustable limiting is transversely adjustable, and the three-jaw positioning block, the auxiliary supporting and the supporting are matched with the adjustable limiting to position the shifting fork part.
Further, the pressing mechanism is a spiral pressing mechanism, and comprises: the device comprises an adjusting rod, a pressing plate, a flat washer, a conical washer, a spherical nut with a shoulder, a compression spring and a stud; wherein the compression spring, the pressure plate, the flat washer, the conical washer and the spherical shoulder nut are connected together through the double-end stud.
Further, the pressing plate is a hook-shaped pressing plate.
Has the advantages that: the utility model adopts the above technical scheme can reach following positive effect after: the three-jaw positioning block of the positioning mechanism adopts a centering positioning mode for the surface of the excircle of the workpiece; the support and the auxiliary support adopt a workpiece plane positioning mode. The auxiliary support is adjustable by adopting the fixation of the nail so as to adapt to the change of the size of the blank; the adjustable spacing is horizontal adjustable to adapt to the shift fork of different width, can be used for the processing of the tractor shift fork of polymorphic type, and can fix a position two shift forks simultaneously. Through using this frock, can improve shift fork machining precision, can effectively solve traditional tractor shift fork size out of tolerance problem, deformation problem, and then improve tractor transmission assembly interference, gear-disengaging, abnormal sound phenomenon, improve the anti-load capacity of shift fork, the life of extension product.
Drawings
FIG. 1 is a drawing of a tractor fork assembly;
fig. 2 is a top view of the present invention;
fig. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of a hold-down mechanism;
FIG. 5 is a schematic view of a three-jaw positioning block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a view showing a structure of a tractor fork, in which fig. 1 (b) is a front view of a fork part, fig. 1 (a) is a sectional view taken along a-a of fig. 1 (b), and fig. 1 (C) is a view taken along C of fig. 1 (b).
The utility model discloses a processing frock for tractor polymorphic type shift fork is shown as figure 2-3 for carry out once fixing a position to the shift fork and accomplish multiaspect processing, include: the clamp comprises a body 1 and two groups of clamps arranged on the plane of the body 1, wherein each group of clamps is sleeved with a shifting fork part in a positioning and clamping manner and comprises three pressing mechanisms 2 and a positioning mechanism 3; each positioning mechanism 3 comprises a three-jaw positioning block 3.1, an auxiliary support 3.2, two supports 3.3 and an adjustable limit 3.4; the auxiliary support is adjustable in height, can adapt to shifting forks of different heights, is adjustable in spacing and transversely adjustable, and adapts to shifting forks of different widths. The utility model can be used for simultaneously placing two identical shifting fork parts, a positioning mechanism and a pressing mechanism of the two shifting fork parts are arranged on the plane of the body 1, as shown in figure 2, wherein, a three-jaw positioning block 3.1.1, an assistant 3.2.1, a support 3.3.1 and a support 3.3.3, a pressing mechanism 2.1, a pressing mechanism 2.2, a pressing mechanism 2.6 and an adjustable limit 3.4.1 are arranged on one side of the plane of the body 1 in sequence, which is a positioning and pressing mechanism of one shifting fork; the other side is provided with a three-jaw positioning block 3.1.2, an auxiliary block 3.2, a support 3.3.2 and a support 3.3.4, a pressing mechanism 2.3, a pressing mechanism 2.4, a pressing mechanism 2.5 and an adjustable limit 3.4.2 which are used as a positioning pressing mechanism of the other shifting fork in sequence, when the device is used, two shifting fork parts are placed on the positioning mechanism 3 on the body 1, the outline and the position of the shifting fork parts are indicated by dotted lines in a figure 2, the adjustable limit 3.4 is adjusted after the shifting fork parts are correctly placed, and the two shifting fork openings are concentric and then pressed by the pressing mechanism 2.
The pressing mechanism 2 is a spiral pressing mechanism, is easy to manufacture, has large reinforcement ratio and good self-locking performance, and as shown in fig. 4, the pressing mechanism 2 specifically comprises: the adjusting mechanism comprises an adjusting mechanism 2.1.1, a pressing plate 2.1.2, a flat washer 2.1.3, a conical washer 2.1.4, a spherical nut with a shoulder 2.1.5, a compression spring 2.1.6 and a stud; the shifting fork part pressing device comprises a pressing spring 2.1.6, a pressing plate 2.1.2, a flat washer 2.1.3, a conical washer 2.1.4, a spherical shoulder nut 2.1.5 and the like, which are connected together through a stud, wherein the pressing plate 2.1.2 is a hook-shaped pressing plate, and the shifting fork part is pressed through the hook-shaped pressing plate.
The positioning mechanism 3 combines centering positioning and plane positioning of the outer circle surface of a workpiece, the outer circle positioning is a three-jaw positioning block 3.1, as shown in figure 5, the three-jaw positioning block 3.1 is connected with a bottom plate through supports 3.1.1-3 and 3.1.1-6, a twisting star-shaped handle 3.1.1-1 drives three jaws 3.1.1-5 to approach or disperse simultaneously through the movement of a screw 3.1.1-2 and a top pin 3.1.1-4, and automatic centering is realized. The plane positioning comprises auxiliary supports 3.2 and 3.3 (2 each), wherein the three-jaw positioning block, the auxiliary supports and the supports 3.3 (2 each) are matched with adjustable limiting 3.4 positioning shifting fork parts.
The utility model discloses when using, put a shift fork earlier on three-jaw locating piece 3.1.1, supporting 3.3.1, 3.3.3 and auxiliary stay 3.2.1 of positioning mechanism 3, three-jaw locating piece 3.1.1 carries out automatic centering location to the excircle of shift fork part, and auxiliary stay 3.2.1 puts in place according to the thick adjustment of the specific size of shift fork part.
And placing the other shifting fork on a three-jaw positioning block 3.1.2, a support 3.3.2, a support 3.3.4 and an auxiliary support 3.2.2 of the positioning mechanism 3, wherein the three-jaw positioning block 3.1.2 automatically centers and positions the excircle of the shifting fork part, and the auxiliary support 3.2.2 is roughly adjusted in place according to the specific size of the shifting fork part.
Two shifting forks are placed in a centering way, after centering positioning and plane positioning are carried out on shifting fork parts by a three-jaw positioning block, an auxiliary support and a support 3.3 (2 parts), an adjustable limit 3.4 is adjusted, and the adjustable limits 3.4.1 and 3.4.2 are adjusted in place according to the specific size of the shifting forks, so that the fork openings of the two shifting forks are concentric.
Then, three hook-shaped pressing plates of the pressing mechanisms 2.1, 2.2 and 2.6 are sequentially aligned to the position of a positioning point of a first shifting fork rib plate downwards, and then spherical shoulder nuts are sequentially screwed to tightly press the 1 st shifting fork in place; 3 hook-shaped pressing plates of the pressing mechanisms 2.3, 2.4 and 2.5 are sequentially aligned downwards to the position of a positioning point of a second shifting fork rib plate, and then spherical shoulder nuts are sequentially screwed to tightly press the 2 nd shifting fork in place.
The correct position of the shifting fork during positioning is kept in the clamping process, the shifting fork is fixed, positioning and pressing of the shifting fork are completed, and processing can be started after technical inspection is carried out without problems.
The utility model discloses a device location is accurate, can once fix a position the multiaspect processing of accomplishing with tractor tradition shift fork, and the device is applicable to the processing requirement of multiple tractor multiple-type shift fork, not only can promote shift fork processing technology level, still can make the production of shift fork class spare part support mechanical product's upgrading development and renewal.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, but all the technical matters of the present invention are still within the scope of the present invention, including any simple modification, equivalent change and modification made by the technical matters of the present invention to the above embodiments.
Claims (4)
1. The utility model provides a processing frock for tractor polymorphic type shift fork which characterized in that: the clamp set on two sides is roughly in central symmetry arrangement, when in use, the two shifting fork parts are respectively placed on the corresponding positioning mechanisms and are correctly placed, the adjustable limit is adjusted to enable the fork openings of the two shifting fork parts to be concentric and then to be pressed tightly through the pressing mechanism.
2. The processing tool for the multi-type shifting fork of the tractor according to claim 1, characterized in that: the positioning mechanism combines centering and plane positioning of the outer circle surface of the shifting fork part, the outer circle of the shifting fork part is centered and positioned through the three-jaw positioning block, the auxiliary supporting height is adjustable, the shifting fork part is subjected to plane positioning through the auxiliary supporting and the supporting, the adjustable limiting is transversely adjustable, and the three-jaw positioning block, the auxiliary supporting and the supporting are matched with the adjustable limiting and positioning shifting fork part.
3. The processing tool for the multi-type shifting fork of the tractor according to claim 1, characterized in that: the hold-down mechanism be spiral hold-down mechanism, include: the device comprises an adjusting rod, a pressing plate, a flat washer, a conical washer, a spherical nut with a shoulder, a compression spring and a stud; wherein the compression spring, the pressure plate, the flat washer, the conical washer and the spherical shoulder nut are connected together through the double-end stud.
4. The processing tool for the multi-type shifting fork of the tractor according to claim 3, characterized in that: the pressing plate is a hook-shaped pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921571907.8U CN210703705U (en) | 2019-09-20 | 2019-09-20 | A processing frock for tractor polymorphic type shift fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921571907.8U CN210703705U (en) | 2019-09-20 | 2019-09-20 | A processing frock for tractor polymorphic type shift fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210703705U true CN210703705U (en) | 2020-06-09 |
Family
ID=70963827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921571907.8U Expired - Fee Related CN210703705U (en) | 2019-09-20 | 2019-09-20 | A processing frock for tractor polymorphic type shift fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210703705U (en) |
-
2019
- 2019-09-20 CN CN201921571907.8U patent/CN210703705U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |