Reverse chamfering tool for shaft hole of throttle valve

Abstract

The reverse chamfering tool comprises a workbench, two sets of installation bases and a right-angle frame are installed on the upper portion of the workbench, positioning rods are installed on the upper portions of the two sets of installation bases, and the side walls of the two sets of positioning rods are connected with a plurality of sets of throttle valve shafts and a plurality of sets of base plates in a sliding and sleeved mode. Two sets of limiting plates are installed above the two sets of positioning rods, two sets of threaded through holes are formed in the upper portion of the right-angle frame, fastening bolts penetrate through the interiors of the two sets of threaded through holes, four sets of T-shaped rods penetrate through the upper portion of the right-angle frame in a sliding mode, and pressing plates are installed at one ends of the two sets of T-shaped rods on the same side. The side walls of the four sets of T-shaped rods are all sleeved with telescopic springs. The reverse chamfering tool for the throttle valve shaft hole has the advantages that the positioning rod, the base plate and the pressing plate are arranged, it can be guaranteed that the throttle valve shaft does not rotate in the axial direction through the positioning rod, the base plate and the pressing plate, and the use practicability of the reverse chamfering tool for the throttle valve shaft hole is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of throttle body shaft processing equipment, and more specifically, to a reverse chamfering tool for throttle body shaft holes. Background Technology

[0002] The throttle shaft is a key component connecting the throttle plate and the drive mechanism. It is responsible for supporting the rotational movement of the throttle plate and ensuring that the throttle plate can accurately respond to the driver's accelerator pedal operation. In actual machining of the throttle shaft, the throttle shaft hole needs to be chamfered. During this process, tooling is required to install and fix the throttle shaft. In actual use, it has the advantages of simple operation, stable structure and good performance.

[0003] The prior art discloses a reverse chamfering tool for throttle body shaft holes, application number CN202122165597.3. In the above-mentioned utility model, the installed throttle body shaft needs to rely on the friction of the pressing structure and the supporting structure to ensure the stability of the throttle body shaft. The side wall of the throttle body shaft is an arc surface, and it is difficult to prevent the throttle body shaft from rotating axially by relying solely on the friction of the arc surface, which reduces the practicality of this utility model. At the same time, the installation of the throttle body shaft is completed by using a variety of slots and plates. Since the size of the annular groove on the surface of the throttle body shaft is small, it brings difficulties to the docking work, which brings inconvenience to the installation of the throttle body shaft of this utility model. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a reverse chamfering fixture for throttle body shaft holes, which has the advantages of ensuring that the throttle body shaft does not rotate axially and facilitating the installation of the throttle body shaft, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the advantages of ensuring the throttle shaft does not rotate axially and facilitating its installation, the specific technical solution adopted by this utility model is as follows: A throttle shaft hole reverse chamfering fixture includes a worktable. Two sets of mounting seats and a right-angle bracket are mounted on the upper part of the worktable. Positioning rods are mounted on the upper part of both sets of mounting seats, and multiple sets of throttle shafts and multiple sets of pads are slidably sleeved on the side walls of both sets of positioning rods. Two sets of limiting plates are mounted above the two sets of positioning rods. Two sets of threaded through holes are opened on the upper part of the right-angle bracket, and fastening bolts penetrate the interior of both sets of threaded through holes. Four sets of T-shaped rods slide through the upper part of the right-angle bracket. Pressure plates are mounted on one end of two sets of T-shaped rods on the same side, and telescopic springs are sleeved on the side walls of the four sets of T-shaped rods.

[0008] Furthermore, the two sets of threaded through holes are mutually engaged with the two sets of fastening bolt threads.

[0009] Furthermore, multiple sets of the throttle body shafts and multiple sets of the gaskets are installed alternately on the same side.

[0010] Furthermore, the upper ends of both sets of positioning rods are sharp.

[0011] Furthermore, a concave seat is installed on the upper part of the workbench, and a bidirectional lead lever is installed inside the concave seat via bearings. Two sets of lead screw sleeves are sleeved on the side walls of the bidirectional lead levers. A connecting plate is fixedly sleeved on the side walls of both sets of lead screw sleeves. A crossbar slides through between the two sets of connecting plates, and the two ends of the crossbar are fixedly connected to the inner wall of the concave seat. Two sets of telescopic columns and electric telescopic rods are installed on the upper part of each set of connecting plates. A lifting plate is installed on the telescopic end of one set of electric telescopic rods and two sets of telescopic columns on the same side. Limiting grooves are opened on the side walls of both sets of lifting plates. Connecting screws pass through the interior of each set of limiting grooves. Connecting nuts are screwed onto the side walls of each of the four sets of connecting screws. One end of each of the four sets of connecting screws is fixedly connected to the four sets of limiting plates. An inclined plate is installed on the upper part of each of the four sets of limiting plates. An electrical control box is installed on the upper part of the right-angle frame.

[0012] Furthermore, the bidirectional lead lever is engaged with the two sets of lead screw threads.

[0013] Furthermore, a handwheel is installed at one end of the bidirectional lever.

[0014] Furthermore, the electrical control box contains a control panel and a battery. The control panel is electrically connected to the battery and the two sets of electric telescopic rods via wires.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a reverse chamfering tool for throttle body shaft holes, which has the following beneficial effects:

[0017] (1) This utility model is equipped with a positioning rod, a pad, and a pressure plate. When actually using the throttle shaft hole reverse chamfering fixture, the operator can manually alternately fit multiple sets of throttle shafts and multiple sets of pads onto the side wall of a positioning rod. After multiple sets of throttle shafts and multiple sets of pads are installed, the other shaft hole of the multiple sets of throttle shafts is exposed to the air and awaits processing. By utilizing the mutual cooperation between the two sets of threaded through holes and the two sets of fastening bolt threads, the operator can manually rotate the two sets of fastening bolts clockwise, and the two sets of fastening bolts can push the two sets of pressure plates. As the plate moves downward, the two sets of pressure plates press against the four sets of telescopic springs via four sets of T-shaped rods. When the two sets of pressure plates contact the two sets of uppermost pads, the rotation of the two sets of fastening bolts stops. At this time, multiple throttle shafts and multiple sets of pads are pressed by the two sets of pressure plates, ensuring stable fixation. Meanwhile, the presence of the positioning rod can prevent multiple sets of throttle shafts from rotating axially. Through the positioning rod, pads, and pressure plates, the throttle shafts are guaranteed not to rotate axially, improving the practicality of the throttle shaft hole reverse chamfering tool.

[0018] (2) This utility model is equipped with a limit plate. Before actually using the throttle shaft hole reverse chamfering tool, the operator first rotates the handwheel by hand. The handwheel can drive the double-acting screw lever to rotate. Since the double-acting screw lever and the two sets of screw sleeves are engaged with each other, the rotating double-acting screw lever can push the two sets of screw sleeves to move away from each other or closer to each other. The two sets of screw sleeves can be moved closer to each other or further away from each other through the two sets of sleeve plates and the four sets of telescopic columns. When the gap length between the two sets of lifting plates reaches the appropriate value, the four sets of columns can be moved by hand. For the limiting plates, when the gap between two sets of limiting plates on the same side reaches the appropriate value, the operator manually rotates the four sets of connecting nuts clockwise. When the four sets of connecting nuts are in tight contact with the two sets of lifting plates, the connection between the two sets of lifting plates and the four sets of limiting plates is completed. At this time, the operator can manually move one set of throttle shafts between the two sets of limiting plates on the same side. The positioning rod on the same side can pass through one set of shaft holes of this set of throttle shafts. The installation of the remaining sets of throttle shafts and multiple sets of pads is carried out in the same way. As can be seen from the operation, the four sets of inclined plates serve as guides. When reverse chamfering is required, the control panel can be used to shorten the two sets of electric telescopic rods, allowing the two sets of lifting plates and four sets of limiting plates to move downwards. When the uppermost throttle body shaft is positioned between the two sets of limiting plates on the same side, the control panel can be used to stop the two sets of electric telescopic rods. At this point, the uppermost throttle body shaft is limited by the same set of positioning rods, the same set of pressure plates, and the two sets of limiting plates on the same side, ensuring the stability of the uppermost throttle body shaft during machining. After the uppermost throttle body shaft is machined, the control panel can be used to... The plate continues to shorten the two sets of electric telescopic rods. When one set of throttle shafts is located between the two sets of limiting plates on the same side, the operator uses his hand to rotate the upper sets of throttle shafts with the same set of positioning rods as the central axis. When the upper set of throttle shafts is misaligned with the set of throttle shafts being processed, the same set of pressure plates on the same side is used to press it down. At this time, the upper sets of throttle shafts that have already been processed will not hinder the processing of this set of throttle shafts. Through the setting of the limiting plates, the throttle shafts can be installed conveniently, which brings convenience to the installation of the throttle shaft hole reverse chamfering fixture. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a throttle body shaft hole reverse chamfering tool according to an embodiment of the present utility model;

[0021] Figure 2 This is a perspective view of the limiting plate according to an embodiment of the present utility model;

[0022] Figure 3 This is a side view of the lifting plate according to an embodiment of the present utility model;

[0023] Figure 4 This is a perspective view of the throttle shaft according to an embodiment of the present utility model;

[0024] Figure 5 According to the embodiments of this utility model Figure 1 Enlarged view of A in the middle;

[0025] Figure 6 According to the embodiments of this utility model Figure 1 Enlarged view of B in the middle;

[0026] Figure 7 According to the embodiments of this utility model Figure 1 A magnified view of C.

[0027] In the picture:

[0028] 1. Workbench; 2. Positioning rod; 3. Throttle body shaft; 4. Pad; 5. Right-angle bracket; 6. Limiting plate; 7. Threaded through hole; 8. Fastening bolt; 9. T-shaped rod; 10. Pressure plate; 11. Telescopic spring; 12. Concave seat; 13. Two-way lead screw lever; 14. Lead screw sleeve; 15. Connecting plate; 16. Crossbar; 17. Limiting through groove; 18. Connecting screw; 19. Connecting nut; 20. Inclined plate; 21. Telescopic column; 22. Lifting plate; 23. Electric telescopic rod; 24. Mounting base. Detailed Implementation

[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] According to an embodiment of the present invention, a reverse chamfering tool for the throttle body shaft hole is provided.

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-7As shown, a throttle shaft hole reverse chamfering fixture according to an embodiment of the present invention includes a worktable 1. Two sets of mounting seats 24 and a right-angle bracket 5 are installed on the upper part of the worktable 1. Positioning rods 2 are installed on the upper part of each of the two sets of mounting seats 24, and multiple sets of throttle shafts 3 and multiple sets of pads 4 are slidably sleeved on the side walls of the two sets of positioning rods 2. Two sets of limiting plates 6 are installed above the two sets of positioning rods 2. Two sets of threaded through holes 7 are opened on the upper part of the right-angle bracket 5, and fastening bolts 8 pass through the interior of the two sets of threaded through holes 7. Four sets of T-shaped rods 9 slide through the upper part of the right-angle bracket 5. Pressure plates 10 are installed at one end of the two sets of T-shaped rods 9 on the same side. Extension springs 11 are sleeved on the side walls of the four sets of T-shaped rods 9. Through the positioning rods 2, pads 4 and pressure plates 10, the throttle shaft 3 can be prevented from rotating axially, thus improving the practicality of the throttle shaft hole reverse chamfering fixture.

[0032] In one embodiment, the two sets of threaded through holes 7 and the two sets of fastening bolts 8 are threadedly engaged with each other, which facilitates the adjustment of the usage position of the two sets of fastening bolts 8.

[0033] In one embodiment, multiple sets of throttle shafts 3 and multiple sets of gaskets 4 are installed alternately on the same side.

[0034] In one embodiment, the upper ends of both sets of positioning rods 2 are sharp, which facilitates the connection of multiple sets of throttle shafts 3 and multiple sets of pads 4 to the side walls of the two sets of positioning rods 2.

[0035] In one embodiment, a concave seat 12 is installed on the upper part of the workbench 1, and a bidirectional lead lever 13 is installed inside the concave seat 12 via bearings. Two sets of lead screw sleeves 14 are sleeved on the side walls of the bidirectional lead lever 13, and a connecting plate 15 is fixedly sleeved on the side walls of both sets of lead screw sleeves 14. A crossbar 16 slides through the two sets of connecting plates 15, and the two ends of the crossbar 16 are fixedly connected to the inner wall of the concave seat 12. Two sets of telescopic columns 21 and electric telescopic rods 23 are installed on the upper part of both sets of connecting plates 15. One set of electric telescopic rods 23 and two sets of telescopic columns 21 on the same side are also installed on the same side. The telescopic end of column 21 is equipped with a lifting plate 22. The side walls of both sets of lifting plates 22 are provided with limit grooves 17. The interior of both sets of limit grooves 17 is provided with connecting screws 18. The side walls of the four sets of connecting screws 18 are screwed with connecting nuts 19. One end of the four sets of connecting screws 18 is fixedly connected to the four sets of limit plates 6 respectively. The upper part of the four sets of limit plates 6 is equipped with an inclined plate 20. The upper part of the right angle bracket 5 is equipped with an electrical control box. Through the set limit plates 6, the throttle shaft 3 can be installed conveniently, which brings convenience to the installation of the reverse chamfering tool for the throttle shaft hole.

[0036] In one embodiment, the bidirectional lead lever 13 is threadedly engaged with two sets of lead screw sleeves 14, which facilitates the adjustment of the usage position of the two sets of lead screw sleeves 14.

[0037] In one embodiment, a handwheel is mounted on one end of the bidirectional wire lever 13.

[0038] In one embodiment, the control box contains a control panel and a battery. The control panel is electrically connected to the battery and two sets of electric telescopic rods 23 via wires. The control circuit of the control panel can be implemented by simple programming by those skilled in the art and is common knowledge in the art. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0039] Working principle:

[0040] When actually using the throttle body shaft hole reverse chamfering fixture, the operator can manually alternately fit multiple sets of throttle body shafts 3 and multiple sets of pads 4 onto the side wall of a set of positioning rods 2. After the multiple sets of throttle body shafts 3 and multiple sets of pads 4 are installed, the other shaft hole of the multiple sets of throttle body shafts 3 is exposed to the air and awaits processing. Utilizing the interlocking threads of two sets of threaded through holes 7 and two sets of fastening bolts 8, the operator can manually rotate the two sets of fastening bolts 8 clockwise. The two sets of fastening bolts 8 can push the two sets of pressure plates 10 downwards. At the same time, the two sets of pressure plates 10, which are moving downwards, compress four sets of telescopic springs 11 through four sets of T-shaped rods 9. When the two sets of pressure plates 10 contact the two sets of uppermost pads 4, the rotation of the two sets of fastening bolts 8 is stopped. At this time, the multiple sets of throttle body shafts 3 and multiple sets of pads 4 are pressed by the two sets of pressure plates 10. This ensures stable fixation, and the presence of the positioning rod 2 prevents axial rotation of multiple throttle shafts 3. The positioning rod 2, pad 4, and pressure plate 10 ensure that the throttle shaft 3 does not rotate axially, improving the practicality of the throttle shaft hole reverse chamfering fixture. Before using the throttle shaft hole reverse chamfering fixture, the operator first rotates the handwheel, which drives the bidirectional lead lever 13 to rotate. Since the bidirectional lead lever 13 and the two sets of lead screw sleeves 14 are threadedly engaged, the rotating bidirectional lead lever 13 can push the two sets of lead screw sleeves 14 away from or towards each other. The two sets of lead screw sleeves 14 can, through the two sets of connecting plates 15 and four sets of telescopic columns 21, bring the two sets of lifting plates 22 closer together or further apart. When the gap between the two sets of lifting plates 22... When the length reaches the appropriate value, manually move the four sets of limiting plates 6. When the gap length between the two sets of limiting plates 6 on the same side reaches the appropriate value, the operator manually rotates the four sets of connecting nuts 19 clockwise. When the four sets of connecting nuts 19 are in close contact with the two sets of lifting plates 22, the connection between the two sets of lifting plates 22 and the four sets of limiting plates 6 is completed. At this time, the operator can manually move a set of throttle shafts 3 into the space between the two sets of limiting plates 6 on the same side. The positioning rod 2 on the same side can pass through a set of shaft holes of this set of throttle shafts 3. The installation of the remaining sets of throttle shafts 3 and multiple sets of pads 4 is carried out in the same way. The four sets of inclined plates 20 play a guiding role. When reverse chamfering is required, the two sets of electric telescopic rods 23 can be shortened using the control panel, which can make the two sets of lifting plates 22 and the four sets of limiting plates 6 more flexible. When the position plate 6 moves down, and the uppermost set of throttle body shafts 3 is located between the two sets of limiting plates 6 on the same side, the control panel is used to stop the two sets of electric telescopic rods 23. At this time, the uppermost set of throttle body shafts 3 is limited by the same set of positioning rods 2, the same set of pressure plates 10, and the two sets of limiting plates 6 on the same side, which can ensure the stability of the uppermost set of throttle body shafts 3 during processing. After the uppermost set of throttle body shafts 3 is processed, the two sets of electric telescopic rods 23 are shortened again using the control panel. When a set of throttle body shafts 3 is located between the two sets of limiting plates 6 on the same side, the operator manually rotates the upper sets of throttle body shafts 3 with the same set of positioning rods 2 as the central axis. When the upper set of throttle body shafts 3 is misaligned with the set of throttle body shafts 3 being processed, the same set of pressure plates 10 are used to press it down.At this point, the multiple sets of throttle body shafts 3 already machined above will not obstruct the machining of this set of throttle body shafts 3. The limiting plate 6 allows for convenient installation of the throttle body shaft 3, facilitating the installation of the reverse chamfering fixture for the throttle body shaft holes.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A throttle body shaft hole reverse chamfering fixture, comprising a worktable (1), characterized in that, The upper part of the workbench (1) is equipped with two sets of mounting seats (24) and a right-angle bracket (5). The upper part of the two sets of mounting seats (24) is equipped with positioning rods (2), and the side walls of the two sets of positioning rods (2) are slidably fitted with multiple sets of throttle shafts (3) and multiple sets of pads (4). The upper part of the two sets of positioning rods (2) is equipped with two sets of limiting plates (6). The upper part of the right-angle bracket (5) is provided with two sets of threaded through holes (7), and fastening bolts (8) pass through the interior of the two sets of threaded through holes (7). The upper part of the right-angle bracket (5) is slidably fitted with four sets of T-shaped rods (9). One end of the two sets of T-shaped rods (9) on the same side is equipped with a pressure plate (10), and the side walls of the four sets of T-shaped rods (9) are fitted with telescopic springs (11).

2. The throttle body shaft hole reverse chamfering tool according to claim 1, characterized in that, The two sets of threaded through holes (7) and the two sets of fastening bolts (8) are threaded together.

3. The throttle body shaft hole reverse chamfering tool according to claim 1, characterized in that, Multiple sets of the throttle shaft (3) and multiple sets of the gasket (4) are installed alternately on the same side.

4. The throttle body shaft hole reverse chamfering tool according to claim 1, characterized in that, The upper ends of both sets of positioning rods (2) are sharp.

5. A throttle body shaft hole reverse chamfering tool according to claim 1, characterized in that, A concave seat (12) is installed on the upper part of the workbench (1), and a double-acting screw lever (13) is installed inside the concave seat (12) through a bearing. Two sets of screw sleeves (14) are sleeved on the side wall of the double-acting screw lever (13). A connecting plate (15) is fixedly sleeved on the side wall of each of the two sets of screw sleeves (14). A crossbar (16) slides through the two sets of connecting plates (15), and the two ends of the crossbar (16) are fixedly connected to the inner wall of the concave seat (12). Two sets of telescopic columns (21) and electric telescopic rods (23) are installed on the upper part of each of the two sets of connecting plates (15). The two sets of connecting plates (15) on the same side are connected to each other. The electric telescopic rod (23) and the telescopic columns (21) on the same side are equipped with lifting plates (22). The side walls of the two sets of lifting plates (22) are provided with limit slots (17). The interior of the two sets of limit slots (17) is provided with connecting screws (18). The side walls of the four sets of connecting screws (18) are all screwed with connecting nuts (19). One end of the four sets of connecting screws (18) is fixedly connected to the four sets of limit plates (6). The upper part of the four sets of limit plates (6) is equipped with inclined plates (20). The upper part of the right angle frame (5) is equipped with an electric control box.

6. The throttle body shaft hole reverse chamfering tool according to claim 5, characterized in that, The bidirectional screw lever (13) is threadedly engaged with the two sets of screw sleeves (14).

7. A throttle body shaft hole reverse chamfering tool according to claim 5, characterized in that, A handwheel is installed at one end of the bidirectional wire lever (13).

8. A throttle body shaft hole reverse chamfering tool according to claim 5, characterized in that, The electrical control box is equipped with a control panel and a battery. The control panel is electrically connected to the battery and the two sets of electric telescopic rods (23) via wires.

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