A jig for manufacturing an internal combustion engine valve

By designing a rotating seat, a sliding seat, and a motor-driven fixture, the problem of insufficient rotational adjustment of the internal combustion engine valve body fixture was solved, enabling all-around machining of the workpiece and improving machining efficiency and convenience.

CN224464481UActive Publication Date: 2026-07-07YANG ZHOU SHI DE LIN NEI RAN JI PEI JIAN YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANG ZHOU SHI DE LIN NEI RAN JI PEI JIAN YOU XIAN GONG SI
Filing Date
2025-08-21
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing internal combustion engine valve body fixtures lack rotation adjustment function, which makes processing inconvenient. The workpiece needs to be removed and adjusted multiple times, which increases the processing difficulty and makes positioning and clamping inconvenient.

Method used

A fixture comprising a rotating seat, a sliding seat, and a motor drive is designed. The workpiece deflection is adjusted in the horizontal and vertical planes through a worm gear mechanism and a transmission gear system, and the workpiece is clamped and fixed through a moving frame and a threaded rod system.

Benefits of technology

It enables all-round processing of workpieces, saves processing time, and improves processing efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224464481U_ABST
    Figure CN224464481U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of clamps for manufacturing internal combustion engine valve body, including fixed base, the middle part of the top of base is rotatably connected with rotating shaft, the first motor of being located rotating shaft side is fixedly installed in the inside of base, the worm of being located the rear side of first motor is rotatably connected in the inside of fixed base, the worm gear of being located fixed base inside is fixedly installed in the middle part of rotating shaft, the worm gear is engaged with worm, the output end of first motor is fixedly installed with one end of worm, the top of rotating shaft is integrally connected with rotating seat, arc slot is set up in the top of rotating seat, second motor is fixedly installed in the inside of rotating shaft.Workpiece is deflected on horizontal plane simultaneously in vertical plane, it is favorable to the machining of valve body side surface all directions, convenient to use, save the time of processing, improve the efficiency of processing.
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Description

Technical Field

[0001] This utility model relates to the field of internal combustion engine valve body fixture technology, specifically a fixture for manufacturing internal combustion engine valve bodies. Background Technology

[0002] There are many different types of parts in an automotive internal combustion engine, and each part requires specific machining tools to complete. For example, when manufacturing the valve body of an internal combustion engine, a jig is needed to hold the valve body so that the machining equipment can process it. However, current jigs do not have rotation adjustment functions, which is inconvenient to use during the machining process. They need to be removed from the jig multiple times for adjustment, which wastes time and increases the difficulty of machining. Furthermore, the positioning and clamping of the valve body of an internal combustion engine is not very convenient.

[0003] Therefore, we propose a fixture for manufacturing valve bodies of internal combustion engines. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for manufacturing valve bodies of internal combustion engines, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for manufacturing an internal combustion engine valve body, comprising a fixed base, a rotating shaft rotatably connected to the center of the top of the base, a first motor fixedly installed inside the base on one side of the rotating shaft, a worm gear rotatably connected inside the fixed base to the rear side of the first motor, a worm wheel fixedly installed in the center of the rotating shaft inside the fixed base, the worm wheel meshing with the worm gear, the output end of the first motor fixedly installed to one end of the worm gear, and a rotating seat integrally connected to the top of the rotating shaft. The top of the moving seat is provided with an arc-shaped groove. A second motor is fixedly installed inside the rotating shaft. A rotating rod located above the second motor is rotatably connected to the top of the rotating shaft. The output end of the second motor is connected to the rotating rod. A transmission gear is fixedly installed in the middle of the rotating rod. A sliding seat is slidably connected inside the arc-shaped groove. An arc-shaped rack is fixedly installed on the arc surface at the bottom of the sliding seat. The arc-shaped rack meshes with the top of the transmission gear. A movable frame is slidably provided on the top of the sliding seat. A clamping plate is provided on the opposite surface of the movable frame and the top of the sliding seat.

[0006] Optionally, the interior of the rotating shaft is hollow, the top of the hollow groove inside the rotating shaft extends through the bottom of the arc-shaped groove, and pressure blocks located on both sides of the arc-shaped groove are fixedly installed on the top of the rotating seat.

[0007] Optionally, the pressure block is in close sliding contact with the arc-shaped protrusions on both sides of the sliding seat.

[0008] Optionally, a first bevel gear is fixedly installed at the output end of the second motor, and a second bevel gear located on one side of the transmission gear is fixedly installed on the rotating rod, with the second bevel gear meshing with the first bevel gear.

[0009] Optionally, a fixed block located inside the movable frame is fixedly installed on the top of the sliding seat. A threaded rod is threadedly connected through the middle of the fixed block. One end of the threaded rod is rotatably connected through the side of the movable frame, and a knob located outside the movable frame is fixedly installed on the other end of the threaded rod.

[0010] Optionally, the two sides of the bottom of the movable frame are slidably connected to the front and rear sides of the top of the sliding seat, and the movable frame is wrapped around the outside of the threaded rod.

[0011] Optionally, rubber protective pads are bonded to the opposite surfaces of the two clamping plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This fixture for manufacturing internal combustion engine valve bodies, by setting a rotating seat and a sliding seat, places the workpiece to be processed on the top of the sliding seat and clamps it with a clamping plate. When the workpiece position needs to be adjusted during processing, the first motor and the second motor are started. The first motor drives the worm gear to rotate, which in turn causes the worm wheel and the rotating seat to rotate on the horizontal plane, adjusting the deflection angle of the workpiece on the horizontal plane. The second motor drives the rotating rod to rotate, which causes the transmission gear to drive the arc rack and the sliding seat to deflect on the vertical plane. This allows the workpiece to deflect on both the horizontal and vertical planes, which is beneficial for processing the valve body from all directions. It is easy to use, saves processing time, and improves processing efficiency.

[0014] 2. The fixture for manufacturing internal combustion engine valve bodies is equipped with a movable frame. By rotating a knob, the threaded rod is rotated, which in turn moves the movable frame along the top of the sliding seat, and then clamps the workpiece to be processed of the valve body through the clamping plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a fixture for manufacturing valve bodies of internal combustion engines according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a fixing base for a fixture used in manufacturing internal combustion engine valve bodies according to the present invention;

[0017] Figure 3 This is a schematic diagram of the rotating shaft of a fixture for manufacturing valve bodies of internal combustion engines according to the present invention.

[0018] Figure 4This is a schematic diagram of the sliding seat of a fixture used for manufacturing valve bodies of internal combustion engines according to the present invention.

[0019] In the diagram: 1. Fixed base; 2. Rotating shaft; 3. Rotating seat; 4. Worm gear; 5. First motor; 6. Worm; 7. Arc groove; 8. Pressure block; 9. Second motor; 10. Rotating rod; 11. Transmission gear; 12. Sliding seat; 13. Arc rack; 14. Moving frame; 15. Fixed block; 16. Threaded rod; 17. Knob; 18. Clamping plate; 19. First bevel gear; 20. Second bevel gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4This utility model provides a fixture for manufacturing valve bodies of internal combustion engines, including a fixed base 1, a rotating shaft 2 rotatably connected to the center of the top of the base, a first motor 5 fixedly installed inside the base on one side of the rotating shaft 2, a worm gear 6 rotatably connected inside the fixed base 1 to the rear side of the first motor 5, a worm wheel 4 fixedly installed inside the fixed base 1 in the center of the rotating shaft 2, the worm wheel 4 meshing with the worm gear 6, the output end of the first motor 5 fixedly installed with one end of the worm gear 6, a rotating seat 3 integrally connected to the top of the rotating shaft 2, an arc-shaped groove 7 formed on the top of the rotating seat 3, a second motor 9 fixedly installed inside the rotating shaft 2, a rotating rod 10 rotatably connected to the top of the rotating shaft 2 above the second motor 9, the output end of the second motor 9 being drively connected to the rotating rod 10, a transmission gear fixedly installed in the center of the rotating rod 10, a sliding seat 12 slidably connected inside the arc-shaped groove 7, and a transmission gear fixedly installed on the arc surface of the bottom of the sliding seat 12. The arc-shaped rack 13 meshes with the top of the transmission gear. A movable frame 14 is slidably mounted on the top of the sliding seat 12. A clamping plate 18 is mounted on the opposite surface of the movable frame 14 and the top of the sliding seat 12. By setting the rotating seat 3 and the sliding seat 12, the workpiece to be processed is placed on the top of the sliding seat 12 and clamped by the clamping plate 18. When the workpiece position needs to be adjusted during processing, the first motor 5 and the second motor 9 are started. The first motor 5 drives the worm gear 6 to rotate, which in turn causes the worm wheel 4 and the rotating seat 3 to rotate on the horizontal plane, adjusting the deflection angle of the workpiece on the horizontal plane. The second motor 9 drives the rotating rod 10 to rotate, which causes the transmission gear 11 to drive the arc-shaped rack 13 and the sliding seat 12 to deflect on the vertical plane. This allows the workpiece to deflect on both the horizontal and vertical planes, which is beneficial for processing the valve body side from all directions. It is convenient to use, saves processing time, and improves processing efficiency.

[0022] The interior of the rotating shaft 2 is hollow, and the top of the hollow groove inside the rotating shaft 2 passes through the bottom of the arc-shaped groove 7. The top of the rotating seat 3 is fixedly installed with pressure blocks 8 located on both sides of the arc-shaped groove 7.

[0023] The pressure block 8 and the arc-shaped protrusions on both sides of the sliding seat 12 make tight sliding contact.

[0024] The output end of the second motor 9 is fixedly mounted with a first bevel gear 19, and the rotating rod 10 is fixedly mounted with a second bevel gear 20 located on one side of the transmission gear 11. The second bevel gear 20 meshes with the first bevel gear 19.

[0025] A fixed block 15 located inside the movable frame 14 is fixedly installed on the top of the sliding seat 12. A threaded rod 16 is threadedly connected through the middle of the fixed block 15. One end of the threaded rod 16 is rotatably connected through the side of the movable frame 14. A knob 17 located outside the movable frame 14 is fixedly installed on the other end of the threaded rod 16.

[0026] The two sides of the bottom of the movable frame 14 are slidably connected to the front and rear sides of the top of the sliding seat 12. The movable frame 14 is wrapped around the outside of the threaded rod 16. By setting the movable frame 14, the threaded rod 16 is rotated by turning the knob 17, which in turn drives the movable frame 14 to move along the top of the sliding seat 12, and then the workpiece to be processed of the valve body is clamped by the clamping plate 18.

[0027] Rubber protective pads are bonded to the opposite surfaces of the two clamping plates 18.

[0028] Working principle:

[0029] The workpiece to be processed is placed on top of the sliding seat 12. Rotating the knob 17 drives the threaded rod 16 to rotate, which in turn drives the moving frame 14 to move along the top of the sliding seat 12. The workpiece to be processed is then clamped by the clamping plate 18. When the workpiece position needs to be adjusted during processing, the first motor 5 and the second motor 9 are started. The first motor 5 drives the worm gear 6 to rotate, which causes the worm wheel 4 and the rotating seat 3 to rotate on the horizontal plane, adjusting the deflection angle of the workpiece on the horizontal plane. The second motor 9 drives the rotating rod 10 to rotate, which causes the transmission gear 11 to drive the arc rack 13 and the sliding seat 12 to deflect on the vertical plane. This allows the workpiece to deflect on both the horizontal and vertical planes, which is beneficial for processing the side of the valve body from all directions. It is convenient to use, saves processing time, and improves processing efficiency.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for manufacturing valve bodies of internal combustion engines, comprising a fixed base (1), characterized in that, A rotating shaft (2) is rotatably connected to the center of the top of the base. A first motor (5) located on one side of the rotating shaft (2) is fixedly installed inside the base. A worm gear (6) located behind the first motor (5) is rotatably connected inside the fixed base (1). A worm wheel (4) located inside the fixed base (1) is fixedly installed in the center of the rotating shaft (2). The worm wheel (4) meshes with the worm gear (6). The output end of the first motor (5) is fixedly installed with one end of the worm gear (6). A rotating seat (3) is integrally connected to the top of the rotating shaft (2). An arc groove (7) is opened on the top of the rotating seat (3). A first motor (5) is fixedly installed inside the rotating shaft (2). Two motors (9), the top of the rotating shaft (2) is rotatably connected to a rotating rod (10) located above the second motor (9), the output end of the second motor (9) is connected to the rotating rod (10) in a transmission connection, a transmission gear is fixedly installed in the middle of the rotating rod (10), a sliding seat (12) is slidably connected inside the arc groove (7), an arc rack (13) is fixedly installed on the arc surface at the bottom of the sliding seat (12), the arc rack (13) meshes with the top of the transmission gear, a moving frame (14) is slidably provided on the top of the sliding seat (12), and a clamping plate (18) is provided on the opposite surface of the moving frame (14) and the top of the sliding seat (12).

2. A fixture for manufacturing an internal combustion engine valve body according to claim 1, characterized in that, The interior of the rotating shaft (2) is hollow, and the top of the hollow groove inside the rotating shaft (2) penetrates the bottom of the arc groove (7). The top of the rotating seat (3) is fixedly installed with pressure blocks (8) located on both sides of the arc groove (7).

3. A fixture for manufacturing an internal combustion engine valve body according to claim 2, characterized in that, The pressure block (8) and the arc-shaped protrusions on both sides of the sliding seat (12) are in close sliding contact.

4. A fixture for manufacturing an internal combustion engine valve body according to claim 1, characterized in that, The output end of the second motor (9) is fixedly mounted with a first bevel gear (19), and the rotating rod (10) is fixedly mounted with a second bevel gear (20) located on one side of the transmission gear (11). The second bevel gear (20) meshes with the first bevel gear (19).

5. A fixture for manufacturing an internal combustion engine valve body according to claim 1, characterized in that, The top of the sliding seat (12) is fixedly installed with a fixed block (15) located inside the movable frame (14). A threaded rod (16) is threadedly connected through the middle of the fixed block (15). One end of the threaded rod (16) is rotatably connected through one side of the movable frame (14). The other end of the threaded rod (16) is fixedly installed with a knob (17) located outside the movable frame (14).

6. A fixture for manufacturing an internal combustion engine valve body according to claim 5, characterized in that, The bottom sides of the movable frame (14) are slidably connected to the front and rear sides of the top of the sliding seat (12), and the movable frame (14) is wrapped around the outside of the threaded rod (16).

7. A fixture for manufacturing an internal combustion engine valve body according to claim 1, characterized in that, Rubber protective pads are bonded to the opposite surfaces of the two clamping plates (18).