Automobile steering universal joint and reversing hole machining device thereof

Abstract

The present application relates to the technical field of automobile steering universal joint trepanning, and is used to solve the problem that the trepanning of automobile steering universal joint involves complicated taking and fixing steps, needs multiple position adjustment and fixing, and is easy to affect trepanning precision and trepanning efficiency, specifically a kind of automobile steering universal joint and reversing trepanning processing device, including workbench, the top of workbench is fixedly installed with support frame, the top of workbench is fixedly installed with slide rail one and slide rail two, the top of slide rail one and slide rail two is slidably connected with sliding seat one and sliding seat two respectively, the top of sliding seat one and sliding seat two is fixedly installed with drilling machine one, the top of sliding seat two is installed with drilling machine two, compared with prior art, the present application is through rotating clamping frame, prompting automobile steering universal joint to flexibly turn in place, then multiple direction abutting is carried out, and then high-precision trepanning of workpiece turning in place and trepanning in place is realized.

Description

Technical Field

[0001] This invention relates to the field of automotive steering universal joint hole-making technology, specifically to an automotive steering universal joint and its reversing hole-making device. Background Technology

[0002] A universal joint, also known as a universal connector, is a mechanical component that enables variable-angle power transmission. It is used in locations where the direction of the drive shaft needs to be changed, and it is also the "joint" component of the universal joint transmission device in a car's drive system. The combination of a universal joint and a drive shaft is called a universal joint transmission device. In front-engine, rear-wheel-drive vehicles, the universal joint transmission device is installed between the transmission output shaft and the drive axle final drive input shaft. In front-engine, front-wheel-drive vehicles, the drive shaft is omitted, and the universal joint is installed between the front axle half-shaft, which is responsible for both driving and steering, and the wheels.

[0003] A universal joint consists of a universal joint fork and a drive shaft. Because the opening positions of the universal joint fork and the drive shaft are different, after drilling a hole in a single position of the universal joint, it is necessary to disassemble, change the direction, adjust the position and fix it, and then drill holes in other positions again. However, this method of drilling holes in a universal joint is not only cumbersome, but also requires multiple adjustments and fixations, which will affect the drilling accuracy and drilling efficiency.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an automotive steering universal joint and its reversing hole drilling device, which solves the problem that the drilling of automotive steering universal joints in the prior art involves cumbersome removal and fixing steps, which is not only time-consuming and labor-intensive, but also requires multiple adjustments and fixations, thus affecting the drilling accuracy and drilling efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reversing hole machining device for an automotive steering universal joint, comprising a worktable, a support frame fixedly mounted on the top of the worktable, a slide rail one and a slide rail two fixedly mounted on the top of the worktable, a sliding seat one and a sliding seat two slidably connected to the top of the slide rail one and the slide rail two respectively, a drilling machine one fixedly mounted on the top of each of the sliding seat one and the sliding seat two, a drilling machine two mounted on the top of the sliding seat two, two shaft seats fixedly connected to the top of the worktable, a shaft ring movably connected within the shaft seat via bearings, and an internal support self-locking assembly provided between the two shaft rings.

[0007] Furthermore, the internal support self-locking assembly includes a snap-fit ​​frame and a snap-fit ​​plate. Both ends of the snap-fit ​​frame are sleeved and fixed to the inner sidewall of the shaft ring. A snap-fit ​​groove is opened on the outer side of the snap-fit ​​frame. Drill points are opened on both side walls of the snap-fit ​​frame. A drill groove is opened through both side walls of the snap-fit ​​plate. The snap-fit ​​plate is fixedly connected to the snap-fit ​​groove on the outer side of the snap-fit ​​frame by bolts.

[0008] Furthermore, a sliding block is slidably connected inside the snap-fit ​​frame, and multiple sets of sleeves are fixedly connected to the inner sidewall of the snap-fit ​​frame. An abutment block is slidably connected inside the sleeve. Multiple sets of through slots are opened through the sidewalls of both the snap-fit ​​frame and the snap-fit ​​plate. One end of the abutment block is slidably connected in the through slot. A compression spring is sleeved on the outside of the abutment block located on the sleeve. The two ends of the compression spring are fixedly connected to the abutment block and the inner wall of the sleeve, respectively.

[0009] The end of the abutment block located inside the snap-fit ​​frame is fixed with a second inclined block by spot welding. The side wall of the sliding block is fixedly connected with multiple sets of first inclined blocks that cooperate with the second inclined block. An electric push rod is installed inside the snap-fit ​​frame, and the output end of the electric push rod is fixedly connected to the side wall of the sliding block.

[0010] Furthermore, square slot one and square slot two are respectively provided at both ends of the snap-fit ​​frame, and electric push rod two and electric push rod three are fixedly connected to the top of the workbench.

[0011] Furthermore, the output end of the electric push rod two is fixedly connected to a square limiting block that mates with the square slot one, the output end of the electric push rod three is fixedly connected to a housing, the side wall of the housing is movably connected to a square rotating block that mates with the square slot two via bearings, and a motor for driving the square rotating block to rotate is fixedly installed inside the housing.

[0012] Furthermore, an arc-shaped pad is fixedly connected to the top of the workbench, a bearing block is fixed to the outer wall of the snap-fit ​​frame by spot welding, a horizontal frame is fixedly connected to the bottom of the support frame, two sliding plates are slidably connected inside the horizontal frame, and a bidirectional screw is movably connected inside the horizontal frame by a bearing, the bidirectional screw being threadedly connected to the sliding plate.

[0013] Furthermore, an electric push rod four is fixedly connected to the bottom of the slide plate, and a pressure block is fixedly connected to the bottom end of the electric push rod four. An arc-shaped groove is opened at the bottom of the pressure block. The interiors of slide rail one and slide rail two are movably connected to threaded rods through bearings. The threaded rods are respectively threadedly connected to the corresponding sliding seats one and two. An electric push rod five is fixedly connected to the bottom of the support frame, and an arc-shaped pressure plate is fixedly connected to the bottom end of the electric push rod five.

[0014] An automotive steering universal joint includes a universal joint fork and a drive shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In use, this invention features two interlocking inclined blocks (one and two) inside the snap-fit ​​frame. Multiple abutment blocks, working in combination, quickly clamp the automotive steering universal joint. The auxiliary clamping by pressure blocks and square limiting blocks helps eliminate vibrations generated during the universal joint's opening process, further improving the drilling accuracy. A square rotating block synchronously rotates the snap-fit ​​frame and the automotive steering universal joint 90 degrees, enabling on-site steering. An arc-shaped pressure plate and arc-shaped pad fully clamp the drive shaft, further eliminating vibrations during the drive shaft's drilling process. Rotating the snap-fit ​​frame allows for flexible on-site steering of the automotive steering universal joint, followed by multi-directional abutment, achieving high-precision on-site drilling and steering of the automotive steering universal joint. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings;

[0018] Figure 1 This is a perspective view of the internal support self-locking component structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the square groove structure in this invention;

[0020] Figure 3 This is a top view of the workbench structure in this invention;

[0021] Figure 4 This is a top view of the internal structure of the snap-fit ​​frame in this invention;

[0022] Figure 5 This is a schematic diagram of the horizontal frame structure in this invention;

[0023] Figure 6 This is a schematic diagram of the universal joint fork and the flipping of the drive shaft opening in this invention.

[0024] Reference numerals: 1. Workbench; 2. Support frame; 301. Slide rail one; 302. Slide rail two; 303. Sliding seat one; 304. Sliding seat two; 4. Drilling machine one; 5. Drilling machine two; 601. Shaft seat; 7. Shaft ring; 8. Internal support self-locking assembly; 801. Snap-fit ​​frame; 802. Snap-fit ​​plate; 803. Snap-fit ​​groove; 804. Drill point; 805. Drill groove; 806. Sliding block; 807. Sleeve; 808. Abutment block; 809. Inclined block one; 810. Inclined block two; 81 1. Electric push rod one; 901. Square slot one; 902. Square slot two; 10. Electric push rod two; 11. Electric push rod three; 12. Square limit block; 13. Machine cover; 14. Square rotating block; 15. Arc-shaped pad; 16. Bearing block; 17. Horizontal frame; 18. Slide plate; 19. Double-acting screw; 20. Electric push rod four; 21. Pressure block; 22. Arc-shaped slot; 23. Threaded rod; 24. Electric push rod five; 25. Arc-shaped pressure plate; 100. Universal joint fork; 200. Drive shaft. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: Figures 1-6 As shown, a reversing hole drilling device for an automotive steering universal joint is disclosed. The automotive steering universal joint includes a universal joint fork 100 and a drive shaft 200. The device includes a worktable 1, a support frame 2 fixedly mounted on the top of the worktable 1, a slide rail 301 and a slide rail 302 fixedly mounted on the top of the worktable 1, a sliding seat 303 and a sliding seat 304 slidably connected to the top of the slide rail 301 and the slide rail 302 respectively, a drilling machine 4 fixedly mounted on the top of the sliding seat 303 and the sliding seat 304, and a drilling machine 5 mounted on the top of the sliding seat 304.

[0027] like Figure 3 As shown, it should be noted that both drilling machine 4 and drilling machine 5 are existing equipment. Drilling machine 4 is used to drill holes on both sides of the universal joint fork 100 of the automotive steering universal joint, and drilling machine 5 is used to drill holes at the end of the drive shaft 200 of the automotive steering universal joint. The difference between sliding seat 304 and sliding seat 303 is that sliding seat 304 can rotate, thereby realizing flexible switching between drilling machine 4 and drilling machine 5.

[0028] An arc-shaped pad 15 is fixedly connected to the top of the workbench 1. The top of the arc-shaped pad 15 has a groove that matches the drive shaft 200. The outer wall of the snap-fit ​​frame 801 is fixedly connected to a bearing block 16 by spot welding. A horizontal frame 17 is fixedly connected to the bottom of the support frame 2. Two sliding plates 18 are slidably connected inside the horizontal frame 17. A double-acting screw 19 is movably connected inside the horizontal frame 17 by a bearing. The double-acting screw 19 is threadedly connected to the sliding plate 18. An electric push rod 20 is fixedly connected to the bottom of the sliding plate 18. A pressure block 21 is fixedly connected to the bottom end of the electric push rod 20. An arc-shaped groove 22 is opened at the bottom of the pressure block 21.

[0029] Both slide rail 1 301 and slide rail 2 302 are internally connected to threaded rods 23 via bearings. The threaded rods 23 are threadedly connected to the corresponding sliding seats 1 303 and 2 304 respectively. The bottom of the support frame 2 is fixedly connected to an electric push rod 5 24. The bottom end of the electric push rod 5 24 is fixedly connected to an arc-shaped pressure plate 25. The arc-shaped pressure plate 25 and the arc-shaped pad 15 support the top and bottom of the drive shaft 200, further improving the stability of the drive shaft 200 when drilling.

[0030] Two bearing seats 601 are fixedly connected to the top of the workbench 1. A shaft ring 7 is movably connected to the bearing seat 601 through a bearing. An inner support self-locking assembly 8 is provided between the two shaft rings 7. The inner support self-locking assembly 8 includes a snap-fit ​​frame 801 and a snap-fit ​​plate 802. By replacing different models of snap-fit ​​plates 802, different models of automotive steering universal joints can be supported. Both ends of the snap-fit ​​frame 801 are sleeved and fixed to the inner side wall of the shaft ring 7. A snap-fit ​​groove 803 is opened on the outer side of the snap-fit ​​frame 801. Drill points 804 are opened on both side walls of the snap-fit ​​frame 801. Drill grooves 805 are opened through both side walls of the snap-fit ​​plate 802. The snap-fit ​​plate 802 is fixedly connected to the snap-fit ​​groove 803 on the outer side of the snap-fit ​​frame 801 by bolts.

[0031] The snap-fit ​​frame 801 has a sliding block 806 slidably connected inside. Multiple sets of sleeves 807 are fixedly connected to the inner side wall of the snap-fit ​​frame 801. An abutment block 808 is slidably connected inside the sleeve 807. Multiple sets of through grooves are opened through the side walls of both the snap-fit ​​frame 801 and the snap-fit ​​plate 802. One end of the abutment block 808 is slidably connected in the through groove. A compression spring is sleeved on the outside of the abutment block 808 located in the sleeve 807. The two ends of the compression spring are fixedly connected to the abutment block 808 and the inner wall of the sleeve 807, respectively.

[0032] The end of the abutment block 808 located inside the snap-fit ​​frame 801 is fixed with a second inclined block 810 by spot welding. The side wall of the sliding block 806 is fixedly connected with multiple sets of first inclined blocks 809 that cooperate with the second inclined block 810. An electric push rod 811 is installed inside the snap-fit ​​frame 801. The output end of the electric push rod 811 is fixedly connected to the side wall of the sliding block 806. Square slots 901 and 902 are respectively opened at both ends of the snap-fit ​​frame 801. An electric push rod 10 and a third electric push rod 11 are fixedly connected to the top of the worktable 1. The output end of the electric push rod 10 is fixedly connected with a square limiting block 12 that cooperates with the square slot 901. The output end of the electric push rod 11 is fixedly connected to a machine cover 13. The side wall of the machine cover 13 is movably connected with a square rotating block 14 that cooperates with the square slot 902 by bearings. A motor for driving the square rotating block 14 to rotate is fixedly installed inside the machine cover 13.

[0033] In the specific setup, the car steering universal joint is placed on top of the snap-fit ​​plate 802. Then, the electric push rod 811 is activated. The electric push rod 811 drives the sliding block 806 to slide. During the sliding process, the sliding block 806 drives the inclined block 809 to move synchronously. The inclined block 809 and the inclined block 810 are provided with mutually cooperating inclined surfaces on their adjacent sides. When the inclined block 809 continues to push under the action of the sliding block 806, the inclined block 810 drives the abutment block 808 to slide in a direction along the inner wall of the sleeve 807 under the action of the inclined block 809. The abutment block 808 passes through the snap-fit ​​frame 801 and the snap-fit ​​plate 802 in sequence until the end of the abutment block 808 abuts and tightens with the four corners of the inner wall of the universal joint fork 100 of the car steering universal joint.

[0034] To further improve the stability of the automotive steering universal joint when it is drilled, the bidirectional screw 19 drives the two slide plates 18 to move towards each other under the action of external drive until they move to the designated position. Then, the electric push rod 20 is activated, which drives the pressure block 21 to move downward until the pressure block 21 and the top sides of the universal joint fork 100 are pressed together by the abutment block 808. The pressure block 21 presses against the automotive steering universal joint in the horizontal direction, thereby making the automotive steering universal joint to be drilled more stable.

[0035] Under the action of external drive, the threaded rod 23 drives the sliding seat 303 and the sliding seat 304 to move synchronously, and the drilling machine 4 at the top of the sliding seat 303 and the sliding seat 304 makes holes on both sides of the universal joint fork 100.

[0036] After the universal joint fork 100 is drilled, the drilling machines 4 and 5 on the top of the sliding seat 304 are reversed to facilitate drilling machine 5 to drill the drive shaft 200. The specific operation is as follows:

[0037] The pressure block 21 releases its clamping force on the car steering universal joint. The electric push rod 2 10 drives the square limit block 12 out of the square groove 1 901. The electric push rod 3 11 drives the motor cover 13 to move synchronously until the square rotating block 14 is embedded in the square groove 2 902. The motor fixedly installed inside the motor cover 13 drives the square rotating block 14 to rotate. The square rotating block 14, through its interaction with the square groove 2 902, drives the locking frame 801 to rotate. The locking frame 801 rotates in the bearing seat 601 through the shaft ring 7 until the car steering universal joint rotates 90 degrees. At this time, the drive shaft 200 contacts the top of the arc-shaped pad 15. Then, the electric push rod 2 10 drives the square limit block 12 to be embedded back into the square groove 1 901. This prevents the locking frame 801 from deflecting during the process of drilling the car steering universal joint, which would cause the drive shaft 200 to deviate during drilling.

[0038] Electric push rod 24 drives the arc-shaped pressure plate 25 to move downward until the arc-shaped pressure plate 25 contacts the top of the drive shaft 200. At this time, the drive shaft 200 is pressed in multiple directions by the cooperation of the arc-shaped pressure plate 25 and the arc-shaped pad 15. The bidirectional screw 19 drives the slide plate 18 to slide again until it slides to the designated position. Then the pressure block 21 descends again until the pressure block 21 presses against the top of the snap-fit ​​frame 801. The drilling machine 5 on the top of the sliding seat 304 performs stable drilling on the drive shaft 200.

[0039] By incorporating the internal support self-locking component 8, when the steering universal joint is being drilled for reversing, the abutment block 808 presses against the inner wall of the universal joint fork 100, and the pressure block 21 presses against both sides of the top of the universal joint fork 100. This further stabilizes the universal joint fork 100 during the drilling process, improving the accuracy of the drilling. After the drilling is completed, the steering universal joint does not need to be removed; it is simply engaged by the interaction of the square rotating block 14 and the square slot 902. The frame 801 rotates 90 degrees, and the locking frame 801 drives the automotive steering universal joint to rotate synchronously, bringing the drive shaft 200 close to the position of the drilling machine 2 5. Then, the arc-shaped pressure plate 25 and the arc-shaped pad 15 fully press against the drive shaft 200 to avoid the problem of drilling accuracy deviation caused by the vibration of the drive shaft 200. The automotive steering universal joint is turned and drilled on the spot, thereby maximizing its function under the condition of limited machine tool accuracy, and thus improving the drilling accuracy of the automotive steering universal joint.

[0040] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reversing hole machining device for an automotive steering universal joint, the automotive steering universal joint including a universal joint fork (100) and a drive shaft (200), the device including a worktable (1), the top of the worktable (1) being fixedly mounted with a support frame (2), characterized in that, The top of the workbench (1) is fixedly equipped with slide rail one (301) and slide rail two (302). The top of slide rail one (301) and slide rail two (302) are respectively slidably connected with slide seat one (303) and slide seat two (304). Drilling machine one (4) is fixedly installed on the top of slide seat one (303) and slide seat two (304). Drilling machine two (5) is installed on the top of slide seat two (304). The top of the workbench (1) is fixedly connected with two shaft seats (601). Shaft rings (7) are movably connected in the shaft seats (601) through bearings. An internal support self-locking assembly (8) is provided between the two shaft rings (7). The internal support self-locking assembly (8) includes a snap-fit ​​frame (801) and a snap-fit ​​plate (802). Both ends of the snap-fit ​​frame (801) are sleeved and fixed to the inner side wall of the shaft ring (7). A snap-fit ​​groove (803) is provided on the outer side of the snap-fit ​​frame (801). Drill points (804) are provided on both side walls of the snap-fit ​​frame (801). Drill grooves (805) are provided through both side walls of the snap-fit ​​plate (802). The snap-fit ​​plate (802) is fixedly connected to the snap-fit ​​groove (803) on the outer side of the snap-fit ​​frame (801) by bolts. The snap-fit ​​frame (801) is internally slidably connected to a sliding block (806). Multiple sets of sleeves (807) are fixedly connected to the inner sidewall of the snap-fit ​​frame (801). An abutment block (808) is slidably connected inside the sleeve (807). Multiple sets of through slots are opened through the sidewalls of both the snap-fit ​​frame (801) and the snap-fit ​​plate (802). One end of the abutment block (808) is slidably connected to the through slot. A compression spring is sleeved on the outside of the abutment block (808) located on the sleeve (807). The two ends of the compression spring are fixedly connected to the abutment block (808) and the inner wall of the sleeve (807), respectively. The end of the abutment block (808) located inside the snap-fit ​​frame (801) is fixed with a second inclined block (810) by spot welding. The side wall of the sliding block (806) is fixedly connected with a number of first inclined blocks (809) that cooperate with the second inclined block (810). The inside of the snap-fit ​​frame (801) is equipped with an electric push rod (811). The output end of the electric push rod (811) is fixedly connected to the side wall of the sliding block (806). The two ends of the snap-fit ​​frame (801) are respectively provided with square groove one (901) and square groove two (902), and the top of the workbench (1) is fixedly connected with electric push rod two (10) and electric push rod three (11). The output end of the electric push rod two (10) is fixedly connected to a square limiting block (12) that cooperates with the square slot one (901). The output end of the electric push rod three (11) is fixedly connected to a machine cover (13). The side wall of the machine cover (13) is movably connected to a square rotating block (14) that cooperates with the square slot two (902) through a bearing. A motor for driving the square rotating block (14) to rotate is fixedly installed inside the machine cover (13).

2. The reversing hole machining device for an automotive steering universal joint according to claim 1, characterized in that, The top of the workbench (1) is fixedly connected to an arc-shaped pad (15), the outer side wall of the snap-fit ​​frame (801) is fixedly connected to a bearing block (16) by spot welding, the bottom of the support frame (2) is fixedly connected to a horizontal frame (17), two sliding plates (18) are slidably connected inside the horizontal frame (17), and a bidirectional screw (19) is movably connected inside the horizontal frame (17) by a bearing, and the bidirectional screw (19) is threadedly connected to the sliding plate (18).

3. The reversing hole machining device for an automotive steering universal joint according to claim 2, characterized in that, The bottom of the slide plate (18) is fixedly connected to an electric push rod four (20), and the bottom end of the electric push rod four (20) is fixedly connected to a pressure block (21). The bottom of the pressure block (21) is provided with an arc groove (22). The interior of the slide rail one (301) and the slide rail two (302) are both connected to a threaded rod (23) through a bearing. The threaded rod (23) is threadedly connected to the corresponding sliding seat one (303) and sliding seat two (304). The bottom of the support frame (2) is fixedly connected to an electric push rod five (24), and the bottom end of the electric push rod five (24) is fixedly connected to an arc-shaped pressure plate (25).

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