Laser marking jig for valve seat

Abstract

The utility model relates to the technical field of valve seat processing equipment, and discloses a laser marking jig for a valve seat, which comprises a fixed base, a servo motor arranged at the center of the surface of the upper end of the fixed base, a protective frame arranged on the outer side of the servo motor, and a driving shaft fixedly arranged at the output end of the servo motor. A middle plate is arranged at the upper end of the driving shaft through a connecting disc, U-shaped frames are arranged on the two sides of the middle plate, positioning clamps are arranged at the upper ends of the interiors of the two U-shaped frames, and a driving assembly is arranged on the surface of the upper end of the middle plate and located between the two U-shaped frames. According to the laser marking jig for the valve seat, a driving assembly is arranged, a handle is rotated to drive a two-way screw rod to rotate synchronously, under the limiting effect of a U-shaped frame, two movable blocks move in the vertical direction of the two-way screw rod, and in the moving process of the movable blocks, a sliding column and a movable clamping plate are pushed or pulled through a push-pull rod to move in the horizontal direction; the valve seats in the two U-shaped frames can be clamped or loosened at the same time, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve seat processing equipment, in particular to a laser marking jig for valve seats. Background Art

[0002] The valve seat, also known as the valve body seat, is a key component in the valve. It is used to isolate the on-off valve and the shut-off valve of the valve, support the valve core in the fully closed position, and form a sealing pair to ensure that the valve can be tightly sealed when closed to prevent medium leakage.

[0003] Since laser marking equipment is required to laser mark the valve seat during the existing valve seat production and processing, and the existing laser marking fixture can generally only clamp one hardware casting at a time, and during the clamping process, the operator is often required to hold up the valve seat to ensure that valve seats of different sizes are clamped in a reasonable position, which is time-consuming and labor-intensive, and the marking efficiency is low. Therefore, it is necessary to provide a laser marking fixture for valve seats to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a laser marking jig for a valve seat, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a laser marking jig for a valve seat, comprising a fixed base, a servo motor is provided at the center of the upper end surface of the fixed base, a protective frame is provided on the outside of the servo motor, a drive shaft is fixedly provided at the output end of the servo motor, the upper end of the drive shaft passes through the upper wall of the protective frame and is provided with an intermediate plate through a connecting plate, U-shaped frames are provided on both sides of the intermediate plate, positioning fixtures are provided on the upper ends of the two U-shaped frames, and a drive assembly is provided on the upper surface of the intermediate plate and located between the two U-shaped frames;

[0006] The driving assembly includes a bidirectional screw, which is rotatably arranged at the center of the upper end surface of the middle plate, and the threads on the upper and lower ends of the outer surface of the bidirectional screw are arranged in opposite directions.

[0007] Preferably, the positioning fixture includes a fixed clamping plate, a movable clamping plate, a fixed column and a sliding column, one end of the fixed column is connected to the fixed clamping plate, and the end of the fixed column away from the fixed clamping plate is fixedly connected to the inner wall of the U-shaped frame.

[0008] Preferably, the movable clamping plate is arranged on the side of the U-shaped frame away from the fixed clamping plate, and a sliding hole is opened at the upper end of the side wall of the two U-shaped frames close to each other. One end of the sliding column is fixedly connected to the movable clamping plate, and the end of the sliding column away from the movable clamping plate passes through the sliding hole and extends to the outside.

[0009] Preferably, the drive assembly further includes a handle, a movable block and a push-pull rod. The handle is arranged at the upper end of the bidirectional screw. There are two movable blocks. The bidirectional screw is threadably connected to the two movable blocks through upper and lower sections of threads.

[0010] Preferably, both sides of the movable block are rotatably connected to the push-pull rod through a limiting shaft, the push-pull rod is rotatably connected to a connecting seat at one end away from the movable block, and the connecting seat is fixedly connected to the sliding column on the side away from the push-pull rod.

[0011] Preferably, a material supporting piece is provided at the center of the lower wall of the U-shaped frame, and the material supporting piece includes an adjusting screw, a material supporting plate and a knob, and the adjusting screw is threadedly connected to the lower wall of the U-shaped frame.

[0012] Preferably, the knob is arranged at the lower end of the adjusting screw, and the upper end of the adjusting screw passes through the lower wall of the U-shaped frame and is connected to the supporting plate.

[0013] Preferably, fixing holes are provided at four corners of the upper surface of the fixing base.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The laser marking jig for valve seats is provided with a supporting piece. By turning the knob, the adjusting screw can be driven to rotate synchronously and move up and down. During the up and down movement of the adjusting screw, the supporting plate can be driven to move up and down synchronously, thereby adjusting the valve seat height of the supporting plate and its upper end surface, ensuring the effective clamping of the positioning fixture and the stability of the valve seat.

[0016] 2. The laser marking jig for valve seats is equipped with a driving assembly. Turning the handle can drive the bidirectional screw to rotate synchronously. Under the limiting action of the U-shaped frame, the two movable blocks can move vertically along the bidirectional screw, approaching or moving away from each other. During the movement of the movable blocks, the push-pull rod pushes or pulls the sliding column and the movable clamping plate to move horizontally, thereby simultaneously clamping or loosening the valve seats inside the two U-shaped frames. The operation is simple, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the overall structural diagrams of the laser marking jig for valve seats of the utility model;

[0018] Figure 2 This is the second schematic diagram of the overall structure of the laser marking jig for valve seats of the utility model;

[0019] Figure 3 This is a schematic diagram of the partial connection structure between the middle plate and the U-shaped frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the working principle of the drive assembly of the utility model;

[0021] Figure 5 For this utility model Figure 2 A magnified schematic diagram of the structure at center A.

[0022] In the figure: 1. Fixed base; 101. Fixed hole; 2. Protective frame; 3. Servo motor; 4. Middle plate; 5. U-shaped frame; 501. Sliding hole; 6. Positioning fixture; 601. Fixed splint; 602. Moving splint; 603. Fixed column; 604. Sliding column; 7. Supporting part; 701. Adjusting screw; 702. Supporting plate; 703. Knob; 8. Driving assembly; 801. Bidirectional screw; 802. Handle; 803. Movable block; 804. Push-pull rod; 805. Connecting seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 A laser marking jig for a valve seat comprises a fixed base 1, a servo motor 3 is provided at the center of the upper end surface of the fixed base 1, a protective frame 2 is provided on the outside of the servo motor 3, a drive shaft is fixedly provided at the output end of the servo motor 3, the upper end of the drive shaft passes through the upper wall of the protective frame 2 and is provided with an intermediate plate 4 through a connecting plate, U-shaped frames 5 are provided on both sides of the intermediate plate 4, and positioning fixtures 6 are provided on the upper ends of the two U-shaped frames 5, and a drive assembly 8 is provided on the upper end surface of the intermediate plate 4 and between the two U-shaped frames 5;

[0025] The driving assembly 8 includes a bidirectional screw 801 rotatably disposed at the center of the upper surface of the intermediate plate 4 , and the threads on the upper and lower ends of the outer surface of the bidirectional screw 801 are in opposite directions.

[0026] The cam 603 is fixed to the fixed plate 601 and the sliding plate 604 is provided with a plurality of holes 501 on the upper ends of the two U-shaped frames 5. The cam 603 is fixed to the fixed plate 601 and the sliding plate 604 is fixed to the inner wall of the U-shaped frame 5.

[0027] Among them, the driving assembly 8 also includes a handle 802, a movable block 803 and a push-pull rod 804. The handle 802 is set at the upper end of the bidirectional screw 801. There are two movable blocks 803. The bidirectional screw 801 is threadedly connected to the two movable blocks 803 through the upper and lower sections of the thread. Both sides of the movable block 803 are rotatably connected to the push-pull rod 804 through the limit shaft. The push-pull rod 804 is rotatably connected to the end away from the movable block 803 with a connecting seat 805. The connecting seat 805 is away from the push-pull rod 804. The two sides are fixedly connected to the sliding column 604, and the bidirectional screw 801 can be driven to rotate synchronously by rotating the handle 802. Under the limiting action of the U-shaped frame 5, the two movable blocks 803 can move vertically along the bidirectional screw 801, approaching or moving away from each other. During the movement of the movable block 803, the push-pull rod 804 pushes or pulls the sliding column 604 and the movable clamping plate 602 to move horizontally, so as to simultaneously clamp or loosen the valve seats inside the two U-shaped frames 5. The operation is simple, saving time and effort.

[0028] Among them, a supporting piece 7 is provided at the center of the lower wall of the U-shaped frame 5, and the supporting piece 7 includes an adjusting screw 701, a supporting plate 702 and a knob 703. The adjusting screw 701 is threadedly connected to the lower wall of the U-shaped frame 5, and the knob 703 is provided at the lower end of the adjusting screw 701. The upper end of the adjusting screw 701 passes through the lower wall of the U-shaped frame 5 and is connected to the supporting plate 702. By rotating the knob 703, the adjusting screw 701 can be driven to rotate synchronously and move up and down. During the up and down movement of the adjusting screw 701, the supporting plate 702 can be driven to move up and down synchronously, thereby adjusting the valve seat height of the supporting plate 702 and its upper end surface, ensuring the effective clamping of the positioning fixture 6, and ensuring the stability of the valve seat.

[0029] wherein, the four corners of the upper surface of the fixed base 1 are provided with fixing holes 101, and the fixing holes 101 are provided to facilitate the installation and fixing of the fixed base 1 to ensure overall stability.

[0030] Working principle: by turning the knob 703, the adjusting screw 701 can be driven to rotate synchronously and move up and down. During the up and down movement of the adjusting screw 701, the supporting plate 702 can be driven to move up and down synchronously, thereby adjusting the valve seat height of the supporting plate 702 and its upper end surface.

[0031] Furthermore, rotating the handle 802 can drive the bidirectional screw 801 to rotate synchronously. Under the limiting action of the U-shaped frame 5, the two movable blocks 803 can move vertically along the bidirectional screw 801, approaching or moving away from each other. During the movement of the movable block 803, the push-pull rod 804 pushes or pulls the sliding column 604 and the movable clamping plate 602 to move horizontally, so as to clamp or loosen the valve seats inside the two U-shaped frames 5 at the same time. The operation is simple, time-saving and labor-saving, and the servo motor 3 can effectively drive the middle plate 4 and the two U-shaped frames 5 to rotate and exchange positions, so that when the laser marking of the valve seat in one U-shaped frame 5 is completed, the valve seat in the other U-shaped frame 5 can be laser marked in time.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser marking jig for valve seats, characterized in that: It comprises a fixed base (1), a servo motor (3) is provided at the center of the upper end surface of the fixed base (1), a protective frame (2) is provided on the outside of the servo motor (3), a drive shaft is fixedly provided at the output end of the servo motor (3), the upper end of the drive shaft passes through the upper wall of the protective frame (2) and is provided with an intermediate plate (4) through a connecting plate, U-shaped frames (5) are provided on both sides of the intermediate plate (4), and positioning fixtures (6) are provided at the upper ends of the two U-shaped frames (5), and a drive assembly (8) is provided on the upper end surface of the intermediate plate (4) and located between the two U-shaped frames (5); The driving assembly (8) comprises a bidirectional screw (801), which is rotatably arranged at the center of the upper surface of the middle plate (4), and the threads on the upper and lower ends of the outer surface of the bidirectional screw (801) are arranged in opposite directions.

2. A laser marking jig for valve seat according to claim 1, characterized in that: The positioning fixture (6) comprises a fixed clamp (601), a movable clamp (602), a fixed column (603) and a sliding column (604), one end of the fixed column (603) is connected to the fixed clamp (601), and the end of the fixed column (603) away from the fixed clamp (601) is fixedly connected to the inner wall of the U-shaped frame (5).

3. The laser marking jig for valve seat according to claim 2, characterized in that: The movable clamping plate (602) is arranged inside the U-shaped frame (5) on a side away from the fixed clamping plate (601), and a sliding hole (501) is opened at the upper end of the side wall of the two U-shaped frames (5) close to each other. One end of the sliding column (604) is fixedly connected to the movable clamping plate (602), and the end of the sliding column (604) away from the movable clamping plate (602) passes through the sliding hole (501) and extends to the outside.

4. The laser marking jig for valve seat according to claim 3, characterized in that: The driving assembly (8) further comprises a handle (802), a movable block (803) and a push-pull rod (804); the handle (802) is arranged at the upper end of the bidirectional screw (801); two movable blocks (803) are provided; and the bidirectional screw (801) is threadedly connected to the two movable blocks (803) via upper and lower thread sections, respectively.

5. The laser marking jig for valve seat according to claim 4, characterized in that: Both sides of the movable block (803) are rotatably connected to the push-pull rod (804) via a limiting shaft. The push-pull rod (804) is rotatably connected to a connecting seat (805) at one end away from the movable block (803). The connecting seat (805) is fixedly connected to the sliding column (604) at the side away from the push-pull rod (804).

6. The laser marking jig for valve seat according to claim 1, characterized in that: A material supporting member (7) is provided at the center of the lower wall of the U-shaped frame (5). The material supporting member (7) comprises an adjusting screw (701), a material supporting plate (702) and a knob (703). The adjusting screw (701) is threadedly connected to the lower wall of the U-shaped frame (5).

7. The laser marking jig for valve seat according to claim 6, characterized in that: The knob (703) is arranged at the lower end of the adjusting screw (701), and the upper end of the adjusting screw (701) passes through the lower wall of the U-shaped frame (5) and is connected to the supporting plate (702).

8. The laser marking jig for valve seat according to claim 1, characterized in that: The four corners of the upper surface of the fixed base (1) are each provided with fixing holes (101).

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