Precision grinding fixture for oil control valve body sealing surface

Abstract

This utility model discloses a precision grinding fixture for the sealing surface of an oil control valve body, comprising a grinding fixture body and a clamping assembly for clamping the oil control valve body. The grinding fixture body includes a base, a fixed seat, a movable seat, and a screw. Two fixed seats are symmetrically fixed on the top surface of the base. The movable seat is slidably mounted on the base. The screw is screwed onto one of the fixed seats and is rotatably connected to the movable seat. The clamping assembly is arranged on the movable seat. The clamping assembly includes a rotating groove, a rotating plate, and a clamping plate. Rotating grooves are symmetrically opened on the opposite surfaces of the movable seat and the other fixed seat. The rotating plate is rotatably mounted in the rotating groove via a damping shaft. Two clamping plates are symmetrically fixed on both sides of the rotating plate. This precision grinding fixture for the sealing surface of an oil control valve body has a simple and reasonable structure and ingenious design. By rotating the rotating plate, the two clamping plates can automatically adapt to the shape of the oil control valve body and clamp it, resulting in strong clamping stability and high precision.

Description

Technical Field

[0001] This utility model relates to the field of oil control valve technology, specifically to a precision grinding fixture for the sealing surface of an oil control valve body. Background Technology

[0002] The oil control valve (OCV valve) is a key component in the engine lubrication system, mainly used to precisely control the engine's valve timing and oil pressure. The oil control valve mainly consists of a valve body (including a solenoid coil and control module connector), a spool valve, and a return spring. Its working principle is to control the grounding and energization of the solenoid coil by the pulse modulation signal provided by the engine control unit (ECU), thereby generating a magnetic field to control the action of the spool valve, thereby continuously changing the timing relationship between the crankshaft and the camshaft to achieve optimal valve timing control.

[0003] A valve body clamp, as disclosed in Chinese Utility Model Patent Publication No. CN220408422U, includes an operating table. Two sliding grooves are formed on the upper left and upper right sides of the operating table. A left clamping mechanism is movably connected to the upper left side of the operating table, and a right clamping mechanism is movably connected to the upper right side. A through groove is formed at the front end of the operating table, communicating with all four sliding grooves. A position adjustment mechanism is fixedly connected to the front right end of the operating table. Support legs are fixedly connected to the four corners of the lower end of the operating table. The left and right clamping mechanisms have the same structure. By setting a clamping plate on the right clamping mechanism, and because the clamping plate has a slot and an arc-shaped structure, the clamping plate can be moved downwards by rotating a limit knob, thus pressing the valve body and improving the stability of the valve body clamping. This valve body clamp described in this utility model has high clamping efficiency, good clamping effect, and high stability, making it suitable for use in valve body production.

[0004] During the grinding process of the sealing surface of the oil control valve body, a grinding fixture is required to hold the oil control valve body. However, due to the uneven height of the oil control valve body surface, the existing grinding fixture is difficult to hold the valve body stably during use, which can easily cause it to shift during the grinding process. This not only reduces the precision of the oil control valve body sealing surface grinding, but also affects the performance of the grinding fixture. Utility Model Content

[0005] The purpose of this invention is to provide a precision grinding fixture for the sealing surface of an oil control valve body, so as to solve the problem of unstable clamping of the oil control valve body mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision grinding fixture for the sealing surface of an oil control valve body, comprising a grinding fixture body and a clamping assembly for clamping the oil control valve body; the grinding fixture body includes a base, a fixed seat, a movable seat, and a screw; two fixed seats are symmetrically fixed on the top surface of the base; the movable seat is slidably disposed on the base, and the fixed seat and the movable seat form a clamping cavity for the oil control valve body; the screw is screwed onto one of the fixed seats, and the screw is rotatably connected to the movable seat via a rotating shaft; the clamping assembly is arranged on the movable seat; the clamping assembly includes a rotating groove, a rotating plate, and a clamping plate; rotating grooves are symmetrically opened on the opposite surfaces of the movable seat and the other fixed seat; the rotating plate is rotatably disposed in the rotating groove via a damping rotating shaft; two clamping plates are symmetrically fixed on both sides of the rotating plate.

[0007] Preferably, the side of the clamping plate away from the rotating plate is an arc-shaped surface and contacts the surface of the oil control valve body.

[0008] Preferably, it further includes an elastic component; the elastic component is arranged on the arc-shaped surface of the clamping plate.

[0009] Preferably, the elastic component includes an elastic plate and a contact plate; at least two of the elastic plates are symmetrically fixed on the arc-shaped surface of the clamping plate; the contact plate is fixedly connected to at least two elastic plates.

[0010] Preferably, both the elastic plate and the contact plate are arc-shaped structures.

[0011] Preferably, the elastic plate includes a fixed plate, a movable plate, and a spring sheet; the fixed plate is fixedly connected to the clamping plate; the movable plate is fixedly connected to the contact plate, and the movable plate and the fixed plate are connected by a spring sheet.

[0012] Preferably, the longitudinal section of the spring sheet is a V-shaped structure, and the tips of two adjacent spring sheets are arranged opposite to each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a clamping assembly to place the oil control valve body on a base, positioning it between a fixed seat and a movable seat. Then, rotating the screw causes the movable seat to slide on the base until one of the clamping plates on the fixed or movable seat contacts the surface of the oil control valve body. At this point, the rotating plate rotates within a rotating groove via a damping shaft until the other clamping plate on the fixed or movable seat contacts the surface of the oil control valve body, thus completing the clamping of the oil control valve body. Subsequently, the sealing surface of the oil control valve body can be ground. After grinding, the oil control valve body can be removed. Compared to existing technologies, this utility model has a simple and reasonable structure and ingenious design. Through the rotation of the rotating plate, the two clamping plates can automatically adapt to the shape of the oil control valve body and clamp it, resulting in strong clamping stability and high precision.

[0015] 2. By setting up an elastic component, when the two contact plates come into contact with the surface of the oil control valve body, the moving seat continues to move, which causes the two springs to deform under force. One spring is stretched under force, while the other spring is contracted under force, making the contact plates tilted. This allows the contact plates to fit more closely to the surface of the oil control valve body. At the same time, the force generated by the deformation of the springs makes the contact plates more stably abut against the oil control valve body, thereby improving the stability of the oil control valve body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the grinding fixture body of this utility model;

[0018] Figure 3 This is a partial structural breakdown diagram of the present invention;

[0019] Figure 4 For the present utility model Figure 1 Enlarged diagram of point A in the middle.

[0020] In the picture:

[0021] 1. Grinding fixture body; 2. Clamping assembly; 3. Elastic assembly; 101. Base; 102. Fixed seat; 103. Moving seat; 104. Screw; 201. Rotating groove; 202. Rotating plate; 203. Clamping plate; 301. Elastic plate; 302. Contact plate; 3011. Fixed plate; 3012. Moving plate; 3013. Spring. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a precision grinding fixture for the sealing surface of an oil control valve body, comprising a grinding fixture body 1 and a clamping assembly 2 for clamping the oil control valve body; the grinding fixture body 1 includes a base 101, a fixed seat 102, a movable seat 103, and a screw 104; two fixed seats 102 are symmetrically fixedly connected to the top surface of the base 101; the movable seat 103 is slidably disposed on the base 101, and the fixed seats 102 and the movable seat 103 form a clamping cavity for the oil control valve body; the screw 104 is screwed to one of the fixed seats 102. 2. The screw 104 is rotatably connected to the movable seat 103 via a rotating shaft; the clamping assembly 2 is arranged on the movable seat 103; the clamping assembly 2 includes a rotating groove 201, a rotating plate 202 and a clamping plate 203; the movable seat 103 and another fixed seat 102 are symmetrically provided with rotating grooves 201 on their opposite surfaces; the rotating plate 202 is rotatably disposed in the rotating groove 201 via a damping rotating shaft; the two clamping plates 203 are symmetrically fixedly connected to both sides of the rotating plate 202; the side of the clamping plate 203 away from the rotating plate 202 is an arc-shaped surface and contacts the surface of the oil control valve body.

[0024] This invention uses a clamping assembly 2 to place the oil control valve body on a base 101, positioning it between a fixed seat 102 and a movable seat 103. Then, the screw 104 is rotated, causing the movable seat 103 to slide on the base 101 until one of the clamping plates 203 on the fixed seat 102 and movable seat 103 contacts the surface of the oil control valve body. At this point, the rotating plate 202 rotates within the rotating groove 201 via a damping shaft until the other clamping plate 203 on the fixed seat 102 and movable seat 103 contacts the surface of the oil control valve body, thus completing the clamping of the oil control valve body. Subsequently, the sealing surface of the oil control valve body can be ground. After grinding, the oil control valve body can be removed. Compared to existing technologies, this invention has a simple and reasonable structure and ingenious design. Through the rotation of the rotating plate 202, the two clamping plates 203 can automatically adapt to the shape of the oil control valve body and clamp it, resulting in strong clamping stability and high precision.

[0025] As a preferred embodiment, it also includes an elastic component 3; the elastic component 3 is arranged on the arc-shaped surface of the clamping plate 203; the elastic component 3 includes an elastic plate 301 and a contact plate 302; the two elastic plates 301 are symmetrically fixedly connected to the arc-shaped surface of the clamping plate 203; the contact plate 302 is fixedly connected to the two elastic plates 301; both the elastic plate 301 and the contact plate 302 are arc-shaped structures; the elastic plate 301 includes a fixed plate 3011, a movable plate 3012 and a spring piece 3013; the fixed plate 3011 is fixedly connected to the clamping plate 203; the movable plate 3012 is fixedly connected to the contact plate 302, and the movable plate 3012 and the fixed plate 3011 are connected by the spring piece 3013; the longitudinal section of the spring piece 3013 is a V-shaped structure, and the tips of two adjacent spring pieces 3013 are set opposite to each other, so that the contact plate 302 can automatically adapt to abut against the oil control valve body through the deformation of the two spring pieces 3013.

[0026] This invention, by setting up an elastic component 3, allows the two spring pieces 3013 to deform under force when the two contact plates 302 contact the surface of the oil control valve body. One spring piece 3013 is stretched under force, while the other spring piece 3013 is contracted under force, causing the contact plates 302 to be inclined. This allows the contact plates 302 to fit more closely to the surface of the oil control valve body. At the same time, the force generated by the deformation of the spring pieces 3013 allows the contact plates 302 to more stably abut against the oil control valve body, thereby improving the stability of the oil control valve body.

[0027] Working principle: In use, first, place the oil control valve body on the base 101, positioning it between the fixed seat 102 and the movable seat 103. Then, rotate the screw 104, causing the movable seat 103 to slide on the base 101 until the contact plate 302 on one of the clamping plates 203 on the fixed seat 102 and the movable seat 103 contacts the surface of the oil control valve body. At this time, the rotating plate 202 will rotate within the rotating groove 201 via the damping shaft until the contact plate 302 on the other clamping plate 203 on the fixed seat 102 and the movable seat 103 contacts the surface of the oil control valve body. Upon contact, continuing to move the movable seat 103 causes the two spring pieces 3013 to deform under force. One spring piece 3013 is stretched while the other is contracted, causing the contact plate 302 to tilt. This allows the contact plate 302 to better fit the surface of the oil control valve body. Simultaneously, the force generated by the deformation of the spring piece 3013 enables the contact plate 302 to more stably abut against the oil control valve body, thereby improving the stability of the oil control valve body. Subsequently, the sealing surface of the oil control valve body can be ground. After grinding is completed, the oil control valve body can be removed.

[0028] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] 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 precision grinding fixture for the sealing surface of an oil control valve body, characterized in that, The device includes a grinding fixture body (1) and a clamping assembly (2) for holding an oil control valve body. The grinding fixture body (1) includes a base (101), a fixed seat (102), a movable seat (103), and a screw (104). Two fixed seats (102) are symmetrically fixed on the top surface of the base (101). The movable seat (103) is slidably disposed on the base (101), and the fixed seats (102) and the movable seat (103) form a clamping cavity for the oil control valve body. The screw (104) is screwed to one of the fixed seats (102). The screw (104) is rotatably connected to the movable seat (103) via a rotating shaft; the clamping assembly (2) is arranged on the movable seat (103); the clamping assembly (2) includes a rotating groove (201), a rotating plate (202) and a clamping plate (203); the movable seat (103) and another fixed seat (102) are symmetrically provided with rotating grooves (201) on their opposite surfaces; the rotating plate (202) is rotatably disposed in the rotating groove (201) via a damping rotating shaft; the two clamping plates (203) are symmetrically fixed on both sides of the rotating plate (202).

2. The precision grinding fixture for the sealing surface of an oil control valve body according to claim 1, characterized in that, The clamping plate (203) has an arc-shaped surface on the side away from the rotating plate (202) and is in contact with the surface of the oil control valve body.

3. The precision lapping fixture for a valve body sealing surface of an engine oil control valve according to claim 2, wherein It also includes an elastic component (3); the elastic component (3) is arranged on the arc surface of the clamping plate (203).

4. The precision lapping fixture for a valve body sealing surface of an engine oil control valve according to claim 3, wherein The elastic component (3) includes an elastic plate (301) and a contact plate (302); at least two of the elastic plates (301) are symmetrically fixed on the arc-shaped surface of the clamping plate (203); the contact plate (302) is fixedly connected to at least two elastic plates (301).

5. The precision lapping fixture for a valve body sealing surface of an engine oil control valve as set forth in claim 4, wherein, Both the elastic plate (301) and the contact plate (302) are arc-shaped structures.

6. The precision lapping fixture for a valve body sealing surface of an engine oil control valve according to claim 5, wherein The elastic plate (301) includes a fixed plate (3011), a movable plate (3012), and a spring sheet (3013); the fixed plate (3011) is fixedly connected to the clamping plate (203); the movable plate (3012) is fixedly connected to the contact plate (302), and the movable plate (3012) and the fixed plate (3011) are connected by the spring sheet (3013).

7. The precision lapping fixture for a valve body sealing surface of an engine oil control valve as set forth in claim 6, wherein The longitudinal section of the spring piece (3013) is V-shaped, and the tips of two adjacent spring pieces (3013) are set opposite to each other.

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