Valve body grinding clamp

Abstract

The utility model provides a valve body grinding clamp, which relates to the field of valve processing and comprises a clamp shell, an extension plate slidably connected to the inner side of the outer wall of the clamp shell, a positioning bolt in threaded connection with the surface of the clamp shell, a fixing mechanism slidably connected to the surface of the extension plate, and a pushing frame slidably connected to the surface of the extension plate. The surface of the middle section of the pushing frame is sleeved with an extrusion spring. According to the valve body grinding clamp, the valve body is fixed from the inner side of the valve body by arranging the tensioning mechanism, so that grinding equipment can conveniently grind the surface of the valve body, the device can clamp and fix the valve body from the outer surface of the valve body by arranging the pushing frame and the fixing mechanism, and the position can be fixed when the valve body is punched or ground in a hole; the effect that the same clamp rotates the valve body to clamp and fix different positions is achieved, and the problem that switching cannot be achieved when a spherical surface and an inner hole are polished during ball valve grinding, and multiple clamps need to be used is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve machining technical field, concretely is a valve body grinding fixture. BACKGROUND

[0002] Valve is the control part of controlling medium flow in pipeline, in different application occasions, need to set up valve with different structure forms in pipeline to satisfy people's demand in daily life. Among them, the valve with different structure forms has the valve body with different structure forms, and in the valve body processing, the fixture for different structure forms of valve body can be designed.

[0003] The existing ball valve body grinding fixture, the utility model discloses a ball valve body grinding fixture, the utility model provides a ball valve body grinding fixture for clamping ball valve body, is connected with the support on the base, and the support can position the medium passage of ball valve body, is equipped with the top bracing section that cooperates with the necking section on the support, and the necking section on the medium passage of ball valve body is positioned by utilizing self-centering. The positioning pin that is equipped with on the base is matched, can further position ball valve body on the base, prevent ball valve body from rotating, so as to be positioned when ball valve body grinds;

[0004] The existing ball valve body grinding fixture cannot carry out targeted polishing on the outer surface when fixing and clamping the valve body, and the polishing of the spherical surface and the inner hole cannot realize switching and reduce the types of clamps used in processing, and therefore a valve body grinding fixture is proposed. Utility model content

[0005] In view of the deficiencies of the prior art, the utility model provides a valve body grinding fixture, which solves the problems raised in the background art.

[0006] Technical scheme

[0007] To achieve the above objectives, the present utility model is realized through the following technical solutions: A valve body grinding fixture includes a fixture shell. An extension plate is slidably connected to the inner side of the outer wall of the fixture shell. A positioning bolt is threadedly connected to the surface of the fixture shell, and the positioning bolt is clamped with the extension plate. A fixing mechanism is slidably connected to the surface of the extension plate. A pushing frame is slidably connected to the surface of the extension plate. A compression spring is sleeved on the middle section surface of the pushing frame, and the compression spring is between the pushing frame and the extension plate. The two sides of the pushing frame are slidably connected to a limiting frame, and the limiting frame is slidably connected to the extension plate. An adjusting screw is threadedly connected to the surface of the limiting frame, and the end face of the adjusting screw is rotatably connected to the pushing frame. A telescopic rod is fixedly connected to the lower end inside the fixture shell. An expansion motor is fixedly connected to the inner side of the free end of the telescopic rod. The output end of the expansion motor is fixedly connected to a twisting plate. An expansion column is sleeved on the outside of the twisting plate. A lifting sleeve is threadedly connected to the outside of the expansion column. The lifting sleeve is fixedly connected to the upper end of the telescopic rod. A tensioning mechanism is fixedly connected to the upper end of the lifting sleeve.

[0008] Further, the fixing mechanism includes a sliding block, a clamping rod and a mating seat. The sliding block is slidably connected to the inside of the extension plate. A threaded hole is provided in the center of the sliding block, and the threaded hole of the sliding block meshes with the clamping rod. The middle section of the clamping rod is a threaded rod, one end of the threaded rod is a rotating handle and the other end is a ball. The ball of the clamping rod is embedded in the inside of the mating seat. An arc surface is provided on the side of the mating seat away from the clamping rod. The fixing mechanism can rotate through the mating seat at the ball end of the clamping rod, so that the mating seat can fit the valve body to clamp the valve body. By rotating the clamping rod and the sliding block, the mating seat is pushed out for clamping.

[0009] Further, the pushing frame is in the shape of a "worker" character. One end is a square rod that slides inside the limiting frame, and the other end is an arc rod with a chamfer. The square rod and the arc rod of the pushing frame are connected by a round shaft. The round shaft penetrates the extension plate. The compression spring is sleeved on the outside of the round shaft. The pushing frame can be pushed out inside the limiting frame, so that the pushing frame can clamp and fix the position of the valve body.

[0010] Further, the fixture shell is in the shape of a cylinder. A groove is provided at the upper end of the fixture shell. A chute is provided on the inner side of the outer wall of the fixture shell and the extension plate slides inside it. The fixture shell can utilize the groove at the upper end to facilitate the placement of the valve body.

[0011] Further, the extension plate is in the shape of a flat plate. A straight-through shape is provided in the middle of the flat plate. An anti-slip strip is provided at the lower end of the extension plate. The anti-slip strip on the surface of the extension plate is clamped with the positioning bolt. The extension plate can be pulled out from the inside of the fixture shell, and the surface mechanism can be used to clamp the valve body for valve bodies with different diameters.

[0012] Further, the lower end of the expansion column is a cylinder. Threads are provided on the outer surface of the cylinder and it meshes with the lifting sleeve. The upper end of the expansion column is a tapered block. The tapered block is slidably connected to the tensioning mechanism. The expansion column can push and squeeze the tensioning mechanism through lifting.

[0013] Further, the tensioning mechanism is composed of a flap and a tensioning block, the flap is in sliding connection with the expansion column, the outer side of the flap is clamped with the tensioning block, and the outer surface of the tensioning block is provided with an anti-skid groove.

[0014] The valve body grinding clamp has the advantages that:

[0015] 1. The valve body grinding clamp is fixed from the inner side of the valve body through the setting of the tensioning mechanism, so that the grinding equipment can conveniently grind the surface of the valve body; the device can clamp and fix the valve body from the outer surface of the valve body through the setting of the push position frame and the fixing mechanism, so that the valve body can be fixed in position when being punched or ground in the hole, the same clamp can rotate the valve body to clamp and fix the valve body in different positions, the problem that a plurality of clamps needs to be used to switch the grinding of the ball surface and the hole when the ball valve is ground is solved.

[0016] 2. The valve body grinding clamp is set with the expansion column to drive the tensioning mechanism to expand and extrude the inner wall of the circular hole of the valve body, so that the valve body can be fixed from the inside to facilitate the grinding of the outer surface; the clamping rod can drive the matching seat to be clamped and fixed through the matching of the surface of the valve body by the matching seat; the position of the valve body can be fixed through the adjustment screw to drive the push position frame to limit the clamping position of the valve body, the effect that the clamp can clamp and fix the surface and the hole of the valve body is achieved, and the problem that the surface and the hole cannot be switched and fixed when the valve body is fixed is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a clamp shell structure half sectional view of the utility model;

[0019] Figure 3 It is an extension plate structure schematic view of the utility model;

[0020] Figure 4 It is a tensioning mechanism structure schematic view of the utility model;

[0021] Figure 5 It is a push position frame structure schematic view of the utility model.

[0022] 1, clamp shell; 2, extension plate; 3, positioning bolt; 4, fixing mechanism; 41, sliding block; 42, clamping rod; 43, matching seat; 5, push position frame; 6, limiting frame; 7, adjusting screw; 8, telescopic rod; 9, expansion motor; 10, twist plate; 11, expansion column; 12, lifting sleeve; 13, tensioning mechanism; 131, flap; 132, tensioning block; 14, extrusion spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See Figures 1-5 A valve body grinding fixture includes a fixture housing 1, an extension plate 2 slidably connected to the inner side of the outer wall of the fixture housing 1, a positioning bolt 3 threadedly connected to the surface of the fixture housing 1, the fixture housing 1 being cylindrical in shape, a groove provided at the upper end of the fixture housing 1, a sliding groove provided at the inner side of the outer wall of the fixture housing 1, and the extension plate 2 sliding inside the groove, the fixture housing 1 can utilize the groove at the upper end to facilitate the placement of the valve body.

[0025] The positioning bolt 3 is engaged with the extension plate 2. The extension plate 2 is flat in shape with a straight line through the middle. The lower end of the extension plate 2 is provided with an anti-slip strip. The anti-slip strip on the surface of the extension plate 2 is engaged with the positioning bolt 3. The extension plate 2 can be pulled out from the inside of the clamp housing 1. The surface mechanism can be used to clamp the valve body for valve bodies of different diameters.

[0026] A fixing mechanism 4 is slidably connected to the surface of the extension plate 2. The fixing mechanism 4 includes a sliding block 41, a clamping rod 42, and a mating seat 43. The sliding block 41 is slidably connected to the inner side of the extension plate 2. A threaded hole is provided in the center of the sliding block 41. The threaded hole of the sliding block 41 engages with the clamping rod 42. The middle section of the clamping rod 42 is a threaded rod. One end of the threaded rod is a rotating handle and the other end is a ball. The ball of the clamping rod 42 is embedded in the inner side of the mating seat 43. The mating seat 43 is provided with an arc-shaped surface on the side away from the clamping rod 42. The fixing mechanism 4 can rotate the mating seat 43 on the ball end of the clamping rod 42, so that the mating seat 43 can fit against the valve body to clamp the valve body. The clamping rod 42 and the sliding block 41 rotate to push out and clamp the mating seat 43.

[0027] A pusher frame 5 is slidably connected to the surface of the extension plate 2. A compression spring 14 is sleeved on the middle section of the pusher frame 5. The compression spring 14 is between the pusher frame 5 and the extension plate 2. Limiting frames 6 are slidably connected to both sides of the pusher frame 5. The pusher frame 5 is in the shape of an "I". One end is a square rod that slides inside the limiting frame 6, and the other end is a rounded rod with a chamfer. The square rod and the rounded rod of the pusher frame 5 are connected by a round shaft. The round shaft passes through the extension plate 2. The compression spring 14 is sleeved on the outside of the round shaft. The pusher frame 5 can be pushed out inside the limiting frame 6, so that the pusher frame 5 can clamp and fix the position of the valve body.

[0028] The limiting frame 6 is in sliding connection with the extension plate 2, the surface of the limiting frame 6 is in threaded connection with an adjusting screw 7, the end face of the adjusting screw 7 is in rotary connection with the pushing frame 5, the inner side of the lower end of the clamp shell 1 is fixedly connected with an expansion rod 8, the inner side of the free end of the expansion rod 8 is fixedly connected with an expansion motor 9, the output end of the expansion motor 9 is fixedly connected with a twisting plate 10, the outer side of the twisting plate 10 is sleeved with an expansion column 11, the outer side of the expansion column 11 is in threaded connection with a lifting sleeve 12, the lifting sleeve 12 is fixedly connected on the upper end of the expansion rod 8, the upper end of the lifting sleeve 12 is fixedly connected with a tensioning mechanism 13, the lower end of the expansion column 11 is a cylinder, the outer surface of the cylinder is provided with threads and is engaged with the lifting sleeve 12, the upper end of the expansion column 11 is a tapered block, the tapered block is in sliding connection with the tensioning mechanism 13, and the expansion column 11 can push the tensioning mechanism 13 by lifting.

[0029] The tensioning mechanism 13 is composed of a warped plate 131 and a tensioning block 132, the warped plate 131 is in sliding connection with the expansion column 11, the outer side of the warped plate 131 is clamped with the tensioning block 132, the outer surface of the tensioning block 132 is provided with an anti-skid groove, and after the inner side of the tensioning mechanism 13 is extruded, the warped plate 131 can be opened to enable the tensioning block 132 to clamp the valve body, and the tensioning block 132 can prevent sliding after clamping the valve body by being provided with the anti-skid groove on the surface.

[0030] In use, when the valve body of the ball valve needs to be punched or fixed position processing, first pull out the appropriate length of the extension plate 2 from the inner side of the clamp shell 1, clamp and fix the anti-skid strips on the surface of the extension plate 2 by rotating the positioning bolt 3, so that the position of the extension plate 2 is fixed, the position of the extension plate 2 on the surface is adjusted by pulling the limiting frame 6, the pushing frame 5 is pushed out by rotating the adjusting screw 7, the pushing frame 5 is pushed out by rotating the three adjusting screws 7, the pushing frame 5 is extruded and positioned on the upper end of the valve body of the ball valve, the cooperating seat 43 is made to adhere to the surface of the valve body by rotating the cooperating seat 43, the valve body is fixed on the surface of the valve body by rotating the clamping rod 42, so as to achieve the effect of fixing the valve body of the ball valve and facilitating punching and other processing requirements, when the outer surface of the valve body needs to be ground, the punched valve body is placed on the upper end of the clamp shell 1, the lifting sleeve 12 is lifted by starting the expansion rod 8, the tensioning mechanism 13 can be inserted into the round hole of the valve body, the twisting plate 10 is rotated by starting the expansion motor 9, the expansion column 11 is rotated by the twisting plate 10, the expansion column 11 is rotated and lowered in the lifting sleeve 12, the upper end of the expansion column 11 is extruded and slid to open the warped plate 131, the warped plate 131 is separated outward and clamps the inner hole of the valve body by the tensioning block 132, so as to facilitate grinding the surface of the valve body.

[0031] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0032] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A valve body grinding jig comprising a jig housing (1), characterised in that: The clamp housing (1) has an extension plate (2) slidably connected to the inner side of its outer wall. The clamp housing (1) has a positioning bolt (3) threadedly connected to its surface. The positioning bolt (3) is engaged with the extension plate (2). The extension plate (2) has a fixing mechanism (4) slidably connected to its surface. The extension plate (2) has a push frame (5) slidably connected to its surface. The middle section of the push frame (5) has a compression spring (14) sleeved on its surface. The compression spring (14) is between the push frame (5) and the extension plate (2). The push frame (5) has limit frames (6) slidably connected to both sides. The limit frames (6) are slidably connected to the extension plate (2). The limit frames (6) have an adjusting screw (7) threadedly connected to their surface. The end face of the adjusting screw (7) is rotatably connected to the push frame (5). The lower inner side of the clamp housing (1) is fixedly connected to a telescopic rod (8), the inner side of the free end of the telescopic rod (8) is fixedly connected to an expansion motor (9), the output end of the expansion motor (9) is fixedly connected to a torsion plate (10), the outer side of the torsion plate (10) is sleeved with an expansion column (11), the outer side of the expansion column (11) is threaded with a lifting sleeve (12), the lifting sleeve (12) is fixedly connected to the upper end of the telescopic rod (8), and the upper end of the lifting sleeve (12) is fixedly connected to a tensioning mechanism (13).

2. A valve body grinding fixture according to claim 1, wherein: The fixing mechanism (4) includes a sliding block (41), a clamping rod (42) and a mating seat (43). The sliding block (41) is slidably connected to the inside of the extension plate (2). A threaded hole is provided in the center of the sliding block (41). The threaded hole of the sliding block (41) meshes with the clamping rod (42). The middle section of the clamping rod (42) is a threaded rod. One end of the threaded rod is a rotating handle and the other end is a ball. The ball of the clamping rod (42) is embedded in the inside of the mating seat (43). An arc-shaped surface is provided on the side of the mating seat (43) away from the clamping rod (42).

3. The valve body grinding fixture of claim 1, wherein: The push frame (5) is in the shape of an "I" character. One end is a square rod that slides inside the limit frame (6), and the other end is a round arc rod with a chamfer. The square rod and the round arc rod of the push frame (5) are connected by a round shaft. The round shaft passes through the extension plate (2), and the compression spring (14) is sleeved on the outside of the round shaft.

4. The valve body grinding fixture of claim 1, wherein: The clamp housing (1) is cylindrical in shape. A groove is provided at the upper end of the clamp housing (1). A sliding groove is provided on the inner side of the outer wall of the clamp housing (1) and the extension plate (2) slides on its inner side.

5. The valve body grinding fixture of claim 1, wherein: The extension plate (2) is flat in shape, with a straight line passing through the middle of the flat plate. The lower end of the extension plate (2) is provided with an anti-slip strip, and the anti-slip strip on the surface of the extension plate (2) is engaged with the positioning bolt (3).

6. A valve body grinding fixture as defined in claim 1 wherein: The lower end of the expansion column (11) is a cylinder, and the outer surface of the cylinder is threaded and engages with the lifting sleeve (12). The upper end of the expansion column (11) is a conical block, and the conical block is slidably connected to the tensioning mechanism (13).

7. The valve body grinding fixture of claim 1, wherein: The tensioning mechanism (13) consists of a rocker (131) and a tensioning block (132). The rocker (131) is slidably connected to the expansion column (11). The tensioning block (132) is snapped onto the outside of the rocker (131). The outer surface of the tensioning block (132) is provided with an anti-slip groove.

Images