Five-gear and six-gear shifting fork drill jig
By designing a five- and six-speed shifting fork drilling fixture, the positioning accuracy of the fork and shaft is improved by using a variety of positioning seats and cylinder structures, the drilling error problem caused by unstable positioning in the prior art is solved, and the Higher drilling accuracy and clamping ease.
Patent Information
- Application Number
- CN202420795011.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-16
AI Technical Summary
When drilling the fifth and sixth gear fork assembly, the fork swings in the axial direction due to the small positioning surface and the poor clearance of the fork foot and the shift lever, the fork swings in the axial direction and its position is unstable, resulting in large drilling errors.
A five- and six-speed gear shifting fork drilling fixture is designed, including the fixture base plate, the first rod positioning seat, the second rod positioning seat, the V-shaped groove, the fork rod positioning pin, the lever pressing cylinder, and the fork port Positioning fixed seats, movable drill template slides and translation cylinders improve positioning accuracy and clamping stability through these structures.
It improves the positioning accuracy of the fork and shaft, reduces drilling errors, enhances drilling accuracy, and is convenient and fast in the clamping process.
Smart Images
Figure CN222269379U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of drilling jig fixtures, in particular to a drilling fixture for a fifth- and sixth-speed shift fork. Background Art
[0002] When the fifth and sixth gear shift fork assembly is drilled with the fifth and sixth gear shift lever using a drill jig, the shift fork is positioned using its two legs, the positioning surface is small, and the legs of the shift fork are far away from the drilling hole. When the legs of the shift fork are tightened and drilled, the clearance between the shift fork and the shift lever causes the shift fork to swing in the axial direction of the shift fork rod during drilling. After the cotter pin is installed in the hole, the legs of the shift fork are not perpendicular to the rod and the position of the legs of the shift fork is unstable, resulting in large errors in the drilling process. Therefore, a redesigned drilling jig is required. Summary of the invention
[0003] In view of the deficiencies in the above-mentioned prior art, the utility model provides a fifth- and sixth-speed shift fork equipped with a drilling fixture, which has high positioning accuracy, good clamping stability, and convenient clamping, and is conducive to improving drilling accuracy.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] The five-sixth gear shift fork drilling fixture is characterized in that it includes a fixture bottom plate, a first rod positioning seat and a second rod positioning seat arranged along the same straight line are arranged on the fixture bottom plate, a fork mouth positioning and fixing seat is arranged on one side of the first rod positioning seat, a movable drilling template slide is arranged on the other side of the first rod positioning seat, a fork mouth frame positioning and fixing seat is arranged between the first rod positioning seat and the second rod positioning seat, the first rod positioning seat and the second rod positioning seat are provided with a V-shaped groove, a fork rod positioning stop pin is arranged on the V-shaped groove of the first rod positioning seat, and the first rod positioning seat A lever clamping cylinder is arranged above the second rod positioning seat, a fork mouth positioning block is arranged on one end face of the fork mouth positioning and fixing seat, at least three fork mouth end face positioning and adjustment blocks are arranged on the periphery of the fork mouth positioning block, a fork mouth end face clamping block is arranged on the fork mouth positioning and fixing seat, a movable fork mouth frame positioning seat is arranged on the fork mouth frame positioning and fixing seat, a fork mouth frame limiting groove positioning block and a fork mouth frame shift groove positioning block are arranged on the fork mouth frame positioning seat, a movable drilling template is slidably arranged on the movable drilling template slide seat, and a drill sleeve is arranged at the front end of the movable drilling template.
[0006] Furthermore, a horizontally movable rod positioning pad is provided on the first rod positioning seat on the fixture bottom plate, the rod positioning pad is slidably fitted on the first rod positioning seat through a T-slot, and a handle is provided at one end of the rod positioning pad.
[0007] Furthermore, a clamping cylinder is provided on the fork mouth positioning fixing seat, the front end of the piston rod of the clamping cylinder is connected to the fork mouth end face pressure rod, the front end of the fork mouth end face pressure rod has a limiting groove, and the fork mouth end face pressure block has a fork mouth limit in the limiting groove.
[0008] Furthermore, the fork mouth end face positioning and adjustment block is movably arranged on the fork mouth positioning and fixing seat, the fork mouth positioning and fixing seat is provided with a fork mouth end face positioning and tightening block, the fork mouth end face positioning and tightening block is provided with a fork mouth end face tightening screw, and the fork mouth end face tightening screw is rotatably connected to the fork mouth end face positioning and adjustment block.
[0009] Furthermore, a translation cylinder is provided on the movable drilling template slide, the movable drilling template is connected to the front end of the piston rod of the translation cylinder, and the movable drilling template and the movable drilling template slide are positioned by a step surface so that the drill sleeve is just located above the V-groove of the first rod positioning seat.
[0010] Furthermore, the fork frame positioning seat is obliquely movably arranged on the fork frame positioning fixing seat, and the fork frame positioning fixing seat is provided with an oblique thrust cylinder for driving the fork frame positioning seat.
[0011] The beneficial effects of the utility model include: improving the positioning accuracy of the shift fork and the shaft rod, increasing the support and compression of the shaft rod, limiting the angle of the fork mouth frame to reduce the error caused by the forward and backward movement of the shaft rod, improving the drilling accuracy, and also having the characteristic of convenient clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is the structural feature of the utility model. DETAILED DESCRIPTION
[0013] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.
[0014] A kind of Figure 1 The fifth and sixth gear shift fork drilling fixture shown in the figure comprises a fixture base plate 1, on which a first rod locating seat 2 and a second rod locating seat 3 arranged along the same straight line are provided, the first rod locating seat 2 and the second rod locating seat 3 have V-shaped grooves, and the V-shaped grooves include vertical grooves, and a fork rod locating stop pin 7 is provided on the V-shaped groove of the first rod locating seat 2 or the second rod locating seat 3, and a lever clamping cylinder 11 is provided above the first rod locating seat 2 and the second rod locating seat 3 for clamping the shaft rod.
[0015] A fork opening positioning and fixing seat 4 is provided on one side of the first rod positioning seat 2, and a fork opening positioning block 8 is provided on one end face of the fork opening positioning and fixing seat 4, which is used to position the inner circular surface of the fork opening, and at least three fork opening end face positioning and adjusting blocks 9 are provided on the periphery of the fork opening positioning block 8, which are used to position the end face of the fork opening, and the fork opening end face positioning and adjusting block 9 is movably provided on the fork opening positioning and fixing seat 4, and a fork opening end face positioning and tightening block 20 is provided on the fork opening positioning and tightening block 20, and a fork opening end face tightening screw 21 is provided on the fork opening end face tightening screw 21, and the fork opening end face positioning and adjusting block 9 is rotatably connected. A fork opening end face pressing block 10 is provided on the fork opening positioning and fixing seat 4, which is used to clamp the fork opening. A clamping cylinder 18 is provided on the fork mouth positioning fixing seat 4, and the front end of the piston rod of the clamping cylinder 18 is connected to a fork mouth end face pressing rod 19, and the front end of the fork mouth end face pressing rod 19 has a limiting groove, and the fork mouth end face pressing block 10 has a fork mouth limit in the limiting groove. This structure realizes the rapid clamping of the fork mouth through the action of the cylinder.
[0016] A fork frame positioning and fixing seat 6 is arranged between the first rod positioning seat 2 and the second rod positioning seat 3, and a movable fork frame positioning seat 12 is arranged on the fork frame positioning and fixing seat 6. The fork frame positioning seat 12 is obliquely movable and arranged on the fork frame positioning and fixing seat 6, and the fork frame positioning and fixing seat 6 is provided with an oblique thrust cylinder 23 for driving the fork frame positioning seat 12. A fork frame limiting groove positioning block 13 and a fork frame shifting groove positioning block 14 are arranged on the fork frame positioning seat 12, and the fork frame is positioned by the fork frame limiting groove positioning block 13 and the fork frame shifting groove positioning block 14 to prevent the shaft rod from rotating and improve the positioning accuracy.
[0017] A movable drilling template slide 5 is provided on the other side of the first rod positioning seat 2, a movable drilling template 16 is slidably provided on the movable drilling template slide 5, and a drill sleeve 17 is provided at the front end of the movable drilling template 16. A translation cylinder 22 is provided on the movable drilling template slide 5, and the movable drilling template 16 is connected to the front end of the piston rod of the translation cylinder 22. The movable drilling template 16 and the movable drilling template slide 5 are positioned by a step surface, so that the drill sleeve 17 is just located above the V-shaped groove of the first rod positioning seat 2.
[0018] In order to improve the stability of the drilling jig processing, in this embodiment, a horizontally movable rod positioning pad 15 is arranged on the first rod positioning seat 2 on the fixture base plate 1. The rod positioning pad 15 is arranged on the first rod positioning seat 2 through a T-slot sliding fit, and a handle is arranged at one end of the rod positioning pad 15.
[0019] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.
Claims
1. The fifth and sixth gear shift fork is equipped with a drilling fixture, which is characterized by: The clamp comprises a fixture base plate (1), wherein a first rod positioning seat (2) and a second rod positioning seat (3) arranged along the same straight line are arranged on the fixture base plate (1), a fork mouth positioning fixing seat (4) is arranged on one side of the first rod positioning seat (2), a movable drilling template slide seat (5) is arranged on the other side of the first rod positioning seat (2), a fork mouth frame positioning fixing seat (6) is arranged between the first rod positioning seat (2) and the second rod positioning seat (3), the first rod positioning seat (2) and the second rod positioning seat (3) have V-shaped grooves, a fork rod positioning stop pin (7) is arranged on the V-shaped groove of the first rod positioning seat (2), and a fork rod positioning stop pin (7) is arranged above the first rod positioning seat (2) and the second rod positioning seat (3). A lever clamping cylinder (11), a fork opening positioning block (8) is arranged on one end face of the fork opening positioning fixing seat (4), at least three fork opening end face positioning adjustment blocks (9) are arranged on the periphery of the fork opening positioning block (8), a fork opening end face clamping block (10) is arranged on the fork opening positioning fixing seat (4), a movable fork opening frame positioning seat (12) is arranged on the fork opening frame positioning fixing seat (6), a fork opening frame limiting groove positioning block (13) and a fork opening frame shifting groove positioning block (14) are arranged on the fork opening frame positioning seat (12), a movable drilling template (16) is slidably arranged on the movable drilling template sliding seat (5), and a drill sleeve (17) is arranged at the front end of the movable drilling template (16).
2. The fifth and sixth gear shift fork drilling fixture according to claim 1 is characterized in that: A horizontally movable rod positioning pad (15) is provided on the first rod positioning seat (2) on the clamp base plate (1); the rod positioning pad (15) is slidably fitted on the first rod positioning seat (2) via a T-slot; and a handle is provided at one end of the rod positioning pad (15).
3. The fifth and sixth gear shift fork drilling fixture according to claim 1 is characterized in that: The fork mouth positioning fixing seat (4) is provided with a clamping cylinder (18), the front end of the piston rod of the clamping cylinder (18) is connected to a fork mouth end face pressure rod (19), the front end of the fork mouth end face pressure rod (19) has a limiting groove, and the fork mouth end face pressure block (10) has a fork mouth limiter in the limiting groove.
4. The fifth and sixth gear shift fork drilling fixture according to claim 1 is characterized in that: The fork mouth end face positioning adjustment block (9) is movably arranged on the fork mouth positioning fixing seat (4), the fork mouth positioning fixing seat (4) is provided with a fork mouth end face positioning fixing block (20), the fork mouth end face positioning fixing block (20) is provided with a fork mouth end face fixing screw (21), and the fork mouth end face fixing screw (21) is rotatably connected to the fork mouth end face positioning adjustment block (9).
5. The fifth and sixth gear shift fork drilling fixture according to claim 1, characterized in that: The movable drilling template slide (5) is provided with a translation cylinder (22), the movable drilling template (16) is connected to the front end of the piston rod of the translation cylinder (22), and the movable drilling template (16) and the movable drilling template slide (5) are positioned via a step surface so that the drill sleeve (17) is located just above the V-groove of the first rod positioning seat (2).
6. The fifth and sixth gear shift fork drilling fixture according to claim 1, characterized in that: The fork frame positioning seat (12) is obliquely movably arranged on the fork frame positioning fixing seat (6), and the fork frame positioning fixing seat (6) is provided with an oblique thrust cylinder (23) for driving the fork frame positioning seat (12).