Flange fork drilling jig

Abstract

The utility model relates to flange fork processing equipment technical field provides a kind of flange fork drilling fixture, including datum seat, pressing plate and first compression assembly, at least one V-shaped groove is equipped on datum seat, pressing plate is parallelly arranged in the upper of datum seat and is fixed with datum seat by first compression assembly;Flange fork is arranged between datum seat and pressing plate, a pair of shaft fork of flange fork is pressed against V-shaped groove, its flange is pressed against pressing plate and is pressed down and fixed by pressing plate.The utility model overcomes the deficiency of prior art, and the design is reasonable, compact structure, solves the technical problem of poor versatility of the existing flange fork drilling fixture.

Description

Technical Field

[0001] This utility model relates to the technical field of flange fork processing equipment, specifically to a flange fork drilling fixture. Background Technology

[0002] The flange fork is one of the key components of a universal joint, consisting of a flange and a pair of forks integrally formed on the flange, with shaft holes machined on the forks. Existing flange fork shaft hole drilling fixtures are generally one-to-one, which has poor versatility, high cost, and large space occupation due to the stacking of different specifications of fixtures.

[0003] Therefore, we propose a flange fork drilling fixture. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a flange fork drilling fixture to solve the above-mentioned problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flange fork drilling fixture, the flange fork comprising a flange and a pair of shaft forks integrally formed on the flange, wherein the end of each shaft fork opposite to the flange is arc-shaped, characterized in that:

[0007] The fixture includes a reference base, a pressure plate, and a first clamping assembly. The reference base is provided with at least one V-groove, and the pressure plate is arranged parallel above the reference base and fixedly connected to the reference base through the first clamping assembly.

[0008] The flange fork is disposed between the reference seat and the pressure plate. The pair of shaft forks of the flange fork abut against the V-groove, and its flange abuts against the pressure plate and is pressed down and fixed by the pressure plate.

[0009] Furthermore, the first clamping assembly includes a first screw and a first nut. One end of the first screw is fixed to the reference base, and the other end of the screw passes vertically through the pressure plate and is threaded to the first nut. The first nut presses against the pressure plate.

[0010] Furthermore, the clamp is provided with first clamping components symmetrically on both sides of the V-groove.

[0011] Furthermore, the clamp includes a second clamping assembly, which includes a locking bolt and a locking nut. The pressure plate has a first threaded hole at the center of the flange, and a locking bolt is threaded onto the first threaded hole. The locking bolt presses against the flange, and the locking nut is threaded onto the locking bolt and presses against the pressure plate.

[0012] Furthermore, the clamp includes a balance hook assembly, on which the pressure plate is laterally slidably mounted along both sides of the flange fork. The balance hook assembly includes a balance hook that is longitudinally adjustable in height. The balance hook is L-shaped, and the upper end surface of its lateral portion is flat.

[0013] Furthermore, the balance hook assembly includes a balance hook, a sleeve, a locking ring, a second screw, and a locking ring. The longitudinal portion of the balance hook is cylindrical. The longitudinal portion of the balance hook has several guide grooves extending vertically on its side and a second threaded hole extending along the axis at its upper end. The sleeve has several guide ridges extending vertically inside, a limiting step at its upper end, and a first limiting flange on its outer side. The upper end of the second screw has a second limiting flange. The pressure plate has strip-shaped stepped through holes on both sides of the first threaded hole, and strip-shaped through holes symmetrically arranged on the step surfaces on both sides of the strip-shaped stepped through holes.

[0014] The longitudinal portion of the balance hook is inserted into the sleeve, the guide ridge is inserted into the guide groove and slides vertically for guidance, the second screw is inserted into the sleeve and threadedly engages with the second threaded hole of the balance hook, the second limiting flange of the second screw abuts against the limiting step, the locking ring is threadedly connected to the upper end of the sleeve and used to limit the second limiting flange, the cylindrical body of the sleeve passes downward through the strip-shaped step through hole, the first limiting flange of the sleeve is slidably installed on the step surface of the first step through hole and fixed by the bolt and nut assembly and pressure plate through the strip-shaped through hole.

[0015] This utility model provides a flange fork drilling fixture, which has the following advantages: when the flange fork is clamped with the end of the fork facing away from the flange in an arc shape, the flange fork is set between the reference seat and the pressure plate. The pair of forks of the flange fork abut against the V-groove, and the flange abut against the pressure plate and is pressed down and fixed by the pressure plate. The V-groove can adapt to the positioning of the fork within a certain diameter range, and the first clamping assembly composed of the first screw and the first nut can adapt to flange forks of different heights, so as to improve the versatility of flange fork clamping, reduce the configuration of fixtures, reduce costs, and reduce storage space. Attached Figure Description

[0016] Figure 1 This is a top view of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the axial side structure of this utility model;

[0018] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the balance hook assembly in this utility model;

[0020] Figure 5 This is an exploded structural diagram of the balance hook assembly in this utility model.

[0021] In the picture:

[0022] P, flange fork;

[0023] P1, Flange;

[0024] P2, shaft fork;

[0025] 1. Reference base;

[0026] 1a. V-groove;

[0027] 2. Pressure plate;

[0028] 2a. Strip-shaped stepped perforation;

[0029] 3. Tighten the bolts;

[0030] 4. Tighten the nut;

[0031] 5. First screw;

[0032] 6. First nut;

[0033] 7. Workbench;

[0034] 8. Sleeve;

[0035] 8a. First limiting flange;

[0036] 8b. Limiting step;

[0037] 9. Second screw;

[0038] 9a. Second limiting flange;

[0039] 10. Second nut;

[0040] 11. Locking ring;

[0041] 12. Balancing hook;

[0042] 12a. Guide groove. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] See attached document Figure 1-5 A flange fork drilling fixture, wherein the flange fork P includes a flange P1 and a pair of shaft forks P2 integrally formed on the flange P1, wherein the end of the shaft fork P2 opposite to the flange P1 is arc-shaped.

[0045] The fixture includes a reference base 1, a pressure plate 2 and a first clamping assembly. The reference base 1 is provided with at least one V-groove 1a. The pressure plate 2 is arranged parallel above the reference base 1 and is fixedly connected to the reference base 1 through the first clamping assembly.

[0046] The clamp is symmetrically provided with first clamping components on both sides of the V-groove 1a. The first clamping components include a first screw 5 and a first nut 6. One end of the first screw 5 is fixed to the reference base 1, and the other end is threaded through the pressure plate 2 and connected to the first nut 6. The first nut 6 is pressed against the pressure plate 2.

[0047] See attached document Figure 1 In use, the reference seat 1 is attached to the worktable 7 of the machine tool, the V-groove 1a extends downward, the flange fork P is set between the reference seat 1 and the pressure plate 2, the pair of shaft forks P2 of the flange fork P are distributed vertically and abut against the V-groove 1a, and its flange P1 abuts against the pressure plate 2 and is pressed down and fixed by the pressure plate 2.

[0048] In this embodiment, the clamp includes a second clamping assembly, which includes a locking bolt 3 and a locking nut 4. The pressure plate 2 has a first threaded hole at the center of the flange P1, and the locking bolt 3 is threaded onto the first threaded hole. The locking bolt 3 presses against the flange P1, and the locking nut 4 is threaded onto the locking bolt 3 and presses against the pressure plate 2. When the clamp has several V-grooves 1a, it is suitable for the simultaneous clamping of multiple flange forks P. Since the heights of each flange fork P may differ slightly, the pressure plate 2 and the first clamping assembly cannot effectively press against the smaller flange forks P. By adding a second clamping assembly for each flange fork P, individual clamping of each flange fork P can be achieved, effectively overcoming this technical problem.

[0049] In some embodiments, the clamp includes a balance hook 12 assembly. The balance hook 12 assembly is laterally slidably mounted on both sides of the flange fork P on the pressure plate 2. The balance hook 12 assembly includes a balance hook 12 that is longitudinally adjustable. The balance hook 12 is L-shaped, and its upper end face of the lateral portion is flat. Some flange forks P have a flat end face of flange plate P1, which can fit against the back of the pressure plate 2 to maintain left-right symmetry. However, some flange forks P have an arc-shaped end face of flange plate P1. After being installed between the V-groove 1a and the pressure plate 2, it is impossible to maintain left-right symmetry, resulting in shaft hole misalignment. Therefore, a pair of balance hook 12 assemblies are designed for flange forks P in this case. The balance hook 12 of the balance hook 12 assembly clamps the flange plate P1, and its upper end face of the lateral portion fits against the back of the flange plate P1 to maintain left-right symmetry.

[0050] Specifically, the balance hook 12 assembly includes a balance hook 12, a sleeve 8, a locking ring 11, a second screw 9, and a locking ring 11. The balance hook 12 is L-shaped, and the longitudinal part of the balance hook 12 is cylindrical. The longitudinal part of the balance hook 12 has several guide grooves 12a extending vertically on its side and a second threaded hole extending along the axis at its upper end. The sleeve 8 has several guide protrusions extending vertically inside, a limiting step 8b at its upper end, and a first limiting flange 8a on its outer side. The upper end of the second screw 9 has a second limiting flange 9a. The pressure plate 2 has strip-shaped stepped through holes 2a on both sides of the first threaded hole, and strip-shaped through holes symmetrically arranged on the step surfaces on both sides of the strip-shaped stepped through holes 2a.

[0051] The longitudinal portion of the balance hook 12 is inserted into the sleeve 8. The guide ridge is inserted into the guide groove 12a and slides vertically for guidance. The second screw 9 is inserted into the sleeve 8 and threadedly engages with the second threaded hole of the balance hook 12. The second limiting flange 9a of the second screw 9 abuts against the limiting step 8b. The locking ring 11 is threadedly connected to the upper end of the sleeve 8 and is used to limit the second limiting flange 9a. The upper end face of the locking ring 11 has a pair of I-shaped grooves, which facilitates the use of tools to insert into the I-shaped grooves to tighten the locking ring. The second nut 10, which is fixed to the upper end of the second screw 9, is rotated to drive the second screw 9 to rotate, thereby realizing the vertical translation adjustment of the balance hook 12 to adapt to flanges P1 of different thicknesses. The cylindrical body of the sleeve 8 passes through the strip-shaped stepped through hole 2a downwards. The first limiting flange 8a of the sleeve 8 is slidably installed on the step surface of the first stepped through hole and is fixed to the bolt and nut assembly and the pressure plate 2 through the strip-shaped through hole. Loosening the bolt and nut assembly moves the balance hook 12 assembly along the strip-shaped stepped through hole 2a to adapt to flanges P1 of different diameters.

[0052] In addition, refer to the appendix Figure 1 , 2Pressure plates 2 with and without balance hook 12 components can be installed on both sides of the reference base 1.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flange fork drilling fixture, the flange fork comprising a flange and a pair of shaft forks integrally formed on the flange, wherein the end of each shaft fork opposite to the flange is arc-shaped, characterized in that: The fixture includes a reference base, a pressure plate, and a first clamping assembly. The reference base is provided with at least one V-groove, and the pressure plate is arranged parallel above the reference base and fixedly connected to the reference base through the first clamping assembly. The flange fork is disposed between the reference seat and the pressure plate. The pair of shaft forks of the flange fork abut against the V-groove, and its flange abuts against the pressure plate and is pressed down and fixed by the pressure plate.

2. The flange fork drilling fixture as described in claim 1, characterized in that: The first clamping assembly includes a first screw and a first nut. One end of the first screw is fixed to the reference base, and the other end of the screw passes vertically through the pressure plate and is threaded to the first nut. The first nut is tightened against the pressure plate.

3. The flange fork drilling fixture as described in claim 2, characterized in that: The clamp is symmetrically provided with first clamping components on both sides of the V-groove.

4. The flange fork drilling fixture as described in claim 1, characterized in that: The clamp includes a second clamping assembly, which includes a locking bolt and a locking nut. The pressure plate has a first threaded hole at the center of the flange, and a locking bolt is threaded onto the first threaded hole. The locking bolt presses against the flange, and the locking nut is threaded onto the locking bolt and presses against the pressure plate.

5. A flange fork drilling fixture as described in claim 1 or 4, characterized in that: The clamp includes a balance hook assembly. The balance hook assembly is slidably mounted on both sides of the flange fork. The balance hook assembly includes a balance hook that can be adjusted vertically in the longitudinal direction. The balance hook is L-shaped and the upper end surface of its lateral portion is flat.

6. The flange fork drilling fixture as described in claim 5, characterized in that: The balance hook assembly includes a balance hook, a sleeve, a locking ring, a second screw, and a locking ring. The longitudinal part of the balance hook is cylindrical. The longitudinal part of the balance hook has several guide grooves extending vertically on its side and a second threaded hole extending along the axis at its upper end. The sleeve has several guide ridges extending vertically inside, a limiting step at its upper end, and a first limiting flange on its outer side. The upper end of the second screw has a second limiting flange. The pressure plate has strip-shaped stepped through holes on both sides of the first threaded hole, and strip-shaped through holes symmetrically arranged on the step surfaces on both sides of the strip-shaped stepped through holes. The longitudinal portion of the balance hook is inserted into the sleeve, the guide ridge is inserted into the guide groove and slides vertically for guidance, the second screw is inserted into the sleeve and threadedly engages with the second threaded hole of the balance hook, the second limiting flange of the second screw abuts against the limiting step, the locking ring is threadedly connected to the upper end of the sleeve and used to limit the second limiting flange, the cylindrical body of the sleeve passes downward through the strip-shaped step through hole, the first limiting flange of the sleeve is slidably installed on the step surface of the first step through hole and fixed by the bolt and nut assembly and pressure plate through the strip-shaped through hole.

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