Jaw vice capable of clamping along with shape

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a vice capable of clamping along with the shape. For thin walls and various special-shaped structures, only combined clamps or special clamps can be adopted for clamping, the overall clamping efficiency is low, and the cost is high. The vice capable of clamping along with the shape comprises a base at the bottom, a guide rail is arranged on the upper portion of the base, a fixed jaw is fixedly installed on one side of the guide rail, a fixed seat is fixedly installed on the other side of the guide rail, and a movable jaw is installed between the fixed jaw and the fixed seat in a sliding mode. The position of the movable jaw is controlled through a screw rod in the fixed seat and a screw rod threaded hole in the movable jaw; a plurality of clamping pins capable of extending out are arranged on the opposite end faces of the fixed jaw and the movable jaw, adjusting shafts are further arranged on the side faces of the fixed jaw and the movable jaw, a closed area is formed by inner cavities of the fixed jaw and the movable jaw, the inner end faces of the clamping pins, the adjusting shafts and the inner end face of the plug, and the closed area is filled with pressure media. And the clamping pressure of the clamping pin is controlled through the adjusting shaft. And the universality is good, the clamping process of special-shaped workpieces is simple and reliable, and clamping deformation cannot occur to workpieces with poor rigidity.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a shape-adaptable clamping vice. Background Art

[0002] Vise clamping is the most common and convenient clamping method in the machining industry. However, the vise clamping method requires that the clamping surfaces are two parallel planes, and the clamping part of the workpiece should have sufficient rigidity to resist deformation caused by clamping.

[0003] For thin-walled and various special-shaped structures, usually only combined clamps or special clamps can be used for clamping, which results in low overall clamping efficiency and high cost. Summary of the invention

[0004] The utility model invents a shape-adaptable clamping vise, which is suitable for clamping various special-shaped curved surfaces, has simple operation and reliable clamping.

[0005] The utility model comprises a base at the bottom, a guide rail is provided on the upper part of the base, a fixed jaw is fixedly installed on one side of the guide rail, a fixed seat is fixedly installed on the other side of the guide rail, a movable jaw is slidably installed between the fixed jaw and the fixed seat, and the position of the movable jaw is controlled by a screw in the fixed seat and a screw threaded hole in the movable jaw;

[0006] There are several extendable clamping pins on the end faces opposite to the dead jaw and the movable jaw, and there are also adjustment shafts on the sides of the dead jaw and the movable jaw. The internal cavities of the dead jaw and the movable jaw, the inner end faces of the clamping pins, the adjustment shafts and the inner end faces of the plug constitute a closed area, which is filled with pressure medium, and the clamping pressure of the clamping pins is controlled by the adjustment shaft.

[0007] Advantageously, the bottom of the movable jaw has a sliding block that cooperates with the guide rail.

[0008] Advantageously, one end of the screw is an external hexagonal shape, the other end is a thread, and the middle is an annular groove, and the bosses on both sides of the annular groove are respectively abutted against the two end surfaces of the light hole of the fixing seat.

[0009] Advantageously, the pressure medium is hydraulic oil.

[0010] Advantageously, the dead jaw and the movable jaw have multiple multi-level through step holes distributed on the clamping surface, which are perpendicular to the clamping surface. The step hole at the rear end is a plug threaded hole, the step hole at the front end is a clamping pin hole, the step hole in the middle is a medium cavity, adjacent medium cavities are connected, and the outermost medium cavity is connected to the control hole on the side.

[0011] Advantageously, an adjusting shaft limiting bracket is installed outside the control hole, and the adjusting shaft is installed in the adjusting shaft limiting bracket.

[0012] By rotating the adjusting shaft to change the volume of the aforementioned enclosed area, all the conformable clamping pins can be retracted into the clamping surface, and the workpiece to be clamped is placed in the middle position between the dead jaw and the movable jaw, and the screw is rotated to bring the movable jaw close to the dead jaw. When the workpiece is about to be clamped, the screw is stopped and the adjusting shaft is started to be rotated, the volume of the enclosed area is compressed to make the conformable clamping pins gradually extend out until they are all against the surface of the workpiece, the adjusting shaft is stopped and the screw is started to be rotated, and the workpiece will be completely clamped.

[0013] Beneficial effects: The vise has good versatility, and the clamping process for special-shaped workpieces is simple and reliable, and no clamping deformation will occur for workpieces with poor rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an oblique view of the utility model of the vise capable of clamping shapes;

[0015] Figure 2 This is an oblique view of the dead jaws;

[0016] Figure 3 This is the main view of the dead jaw;

[0017] Figure 4 This is a right side sectional view of the dead jaw;

[0018] Figure 5 It is a top view of the dead jaw;

[0019] Figure 6 This is an oblique view of the movable jaws;

[0020] Figure 7 This is the front view of the movable jaw;

[0021] Figure 8 It is a right side sectional view of the movable jaw;

[0022] Fig. 9 It is a top view of the movable jaw;

[0023] Fig.10 It is an oblique view of the screw;

[0024] Fig.11 This is an oblique view of the adjusting shaft limit bracket;

[0025] Fig.12 It is a cross-sectional view of the adjusting shaft limit bracket;

[0026] Fig.13 To adjust the axis oblique view;

[0027] Fig.14 This is an oblique view of the conformal clamping pin;

[0028] Fig.15 This is an oblique view of the plug;

[0029] Fig.16 Schematic diagram of clamping special-shaped workpieces.

[0030] 1. Dead jaws, 2. Live jaws, 3. Base, 4. Fixed seat, 5. Screw, 6. Adjustment shaft limit bracket, 7. Adjustment shaft, 8. Screw, 9. Clamping pin, 10. Plug, 11. Sealing ring 1, 12. Sealing ring 2, 13. Sealing ring 3, 1-1. First connecting hole, 1-2. First plug threaded hole, 1-3. First screw hole, 1-4. First clamping pin hole, 1-5. First control hole, 2-1. Slider, 2-2. Screw threaded hole, 2-3. Second screw hole, 2-4. Second control hole, 2-5, second clamping pin hole, 2-6, second connecting hole, 2-7, second plug threaded hole, 5-1, outer hexagon, 5-2, ring groove, 5-3, screw, 6-1, bracket threaded hole, 6-2, bracket step hole, 6-3, bracket light hole, 7-1, adjusting shaft inner hexagonal hole, 7-2, adjusting shaft screw, 7-3, adjusting shaft cylindrical plug, 9-1, clamping pin small diameter shaft rod, 9-2, clamping pin large diameter shaft rod, 10-1, plug hexagonal hole, 10-2, plug large diameter shaft rod, 10-3, plug small diameter shaft rod DETAILED DESCRIPTION

[0031] The embodiment specifically relates to a conformable clamping vise, see Figure 1 It includes a fixed jaw 1, a movable jaw 2, a base 3, a fixed seat 4, a screw 5, an adjusting shaft limit bracket 6, an adjusting shaft 7, a conformal clamping pin 9 and a plug 10.

[0032] See also Figure 2-5 The dead jaw 1 is a block-shaped structure, and a plurality of multi-level through-step holes perpendicular to the clamping surface are distributed on the clamping surface. The step hole at the rear end is the first plug threaded hole 1-2, the step hole at the front end is the first clamping pin hole 1-4, and the step hole in the middle is a medium cavity, forming a closed area inside, which is filled with hydraulic oil. Adjacent medium cavities are connected through the first connecting hole 1-1, and the outermost medium cavity is connected to the first control hole 1-5 on the side. There are a plurality of first screw holes 1-3 around the first control hole 1-5, and the adjusting shaft limit bracket 6 is installed on the outside of the first control hole 1-5 by screws 8.

[0033] The base 3 has a guide rail on its upper end surface, and the dead jaw 1 is fixedly mounted on one end of the guide rail. The fixed seat 4 is a block structure, fixedly mounted on the other end of the guide rail, and the fixed seat 4 is provided with a through light hole along the guide rail direction of the base 3. The movable jaw 2 cooperates with the guide rail of the base 3 through the slider 2-1 and slides along the guide rail direction. The base 3 is generally directly mounted on the machine tool platform.

[0034] See also Figure 6-9The movable jaw 2 is a block structure, and a plurality of multi-level through-step holes perpendicular to the clamping surface are distributed on the clamping surface. The step hole at the rear end is the second plug threaded hole 2-7, the step hole at the front end is the second clamping pin hole 2-5, the step hole in the middle is the medium cavity, and the adjacent medium cavities are connected through the second connecting hole 2-6, wherein the outermost medium cavity is connected with the second control hole 2-4 on the side. There are a plurality of second screw holes 2-3 around the second control hole 2-4, and the adjusting shaft limit bracket 6 is installed on the outside of the second control hole 2-4 by screws 8. A slider 2-1 that can move along the clamping direction is arranged on the bottom surface of the movable jaw 2, and a through-lead screw threaded hole 2-2 is arranged in the slider 2-1.

[0035] See also Fig.10 The screw rod 5 is a rod-shaped structure, one end of which is an outer hexagonal 5-1, the other end is a thread 5-3, and the middle is an annular groove 5-2. The two side bosses of the annular groove 5-2 are respectively attached to the two end surfaces of the light hole of the fixing seat 4.

[0036] See also Figure 11-12 The outer portion of the adjusting shaft limit bracket 6 has a bracket step hole 6-2, and the middle portion has a step hole. The outer step hole is the bracket threaded hole 6-1, and the inner step hole is the bracket light hole 6-3. The inner diameter of the bracket light hole 6-3 is larger than the bracket threaded hole 6-1.

[0037] See also Fig.13 The adjusting shaft 7 is a stepped shaft, and the inner side is an adjusting shaft cylindrical plug 7-3, and an annular groove is provided on the adjusting shaft cylindrical plug 7-3, in which a sealing ring 11 is installed. The outer side of the adjusting shaft 7 is an adjusting shaft screw 7-2, and the outer diameter of the adjusting shaft screw 7-2 is smaller than the adjusting shaft cylindrical plug 7-3. The outer end surface of the adjusting shaft 7 is provided with an adjusting shaft inner hexagonal hole 7-1. The adjusting shaft 7 is installed in the aforementioned adjusting shaft limit bracket 6, and the adjusting shaft screw 7-2 cooperates with the bracket threaded hole 6-1.

[0038] See also Fig.14 The clamping pin 9 is a stepped shaft structure, with a front end of a clamping pin small diameter shaft rod 9-1 and a rear end of a clamping pin large diameter shaft rod 9-2. An annular groove is provided on the clamping pin large diameter shaft rod 9-2, in which a sealing ring 12 is installed. The clamping pin small diameter shaft rod 9-1 extends out of the clamping surface from the first clamping pin hole 1-4 and the second clamping pin hole 2-5, and the clamping pin large diameter shaft rod 9-2 is sealed and installed in the medium cavity.

[0039] See also Fig.15 The plug 10 is a stepped shaft, and an annular groove is provided on the internal plug small-diameter shaft rod 10-3, in which a sealing ring 13 is installed. The external plug large-diameter shaft rod 10-2 has an external thread, and a plug hexagonal hole 10-1 is provided on the outer end face of the large-diameter shaft rod 10-2. The whole is installed in the first plug threaded hole 1-2 of the dead jaw 1 and the second plug threaded hole 2-7 of the movable jaw 2.

[0040] By rotating the adjusting shaft 7 to change the volume of the aforementioned enclosed area, all the conformable clamping pins can be retracted into the clamping surface, and the workpiece to be clamped is placed in the middle position between the dead jaw 1 and the movable jaw 2. The screw 5 is rotated to bring the movable jaw 2 close to the dead jaw 1. When the workpiece is about to be clamped, the screw 5 is stopped and the adjusting shaft 7 is started to be rotated. The volume of the enclosed area is compressed to make the conformable clamping pins 9 gradually extend out until they are all against the surface of the workpiece. The adjusting shaft 7 is stopped and the screw 5 is started to be rotated. Then the workpiece will be completely clamped.

Claims

1. A shape-adaptable clamping vise, characterized in that: The invention comprises a base (3) at the bottom, a guide rail is provided on the upper part of the base (3), a fixed jaw (1) is fixedly installed on one side of the guide rail, a fixed seat (4) is fixedly installed on the other side of the guide rail, a movable jaw (2) is slidably installed between the fixed jaw (1) and the fixed seat (4), and the position of the movable jaw (2) is controlled by a screw (5) in the fixed seat (4) and a screw threaded hole (2-2) in the movable jaw (2); A plurality of extendable clamping pins (9) are provided on the end faces opposite to the dead jaw (1) and the movable jaw (2), and an adjusting shaft (7) is provided on the side faces of the dead jaw (1) and the movable jaw (2). An enclosed area is formed by the internal cavities of the dead jaw (1) and the movable jaw (2), the inner end faces of the clamping pins (9), the adjusting shaft (7) and the inner end face of the plug (10), and is filled with a pressure medium. The clamping pressure of the clamping pins (9) is controlled by the adjusting shaft (7).

2. The adaptable clamping vise according to claim 1, characterized in that: The bottom of the movable jaw (2) is provided with a sliding block (2-1) which cooperates with the guide rail.

3. The adaptable clamping vise according to claim 1, characterized in that: The screw rod (5) has an outer hexagonal shape (5-1) at one end and a thread (5-3) at the other end. There is an annular groove (5-2) in the middle. The bosses on both sides of the annular groove (5-2) are respectively attached to the two end surfaces of the light hole of the fixing seat (4).

4. The adaptable clamping vise according to claim 1, characterized in that: The pressure medium is hydraulic oil.

5. The adaptable clamping vise according to claim 1, characterized in that: The dead jaw (1) and the movable jaw (2) are provided with a plurality of multi-level through-step holes perpendicular to the clamping surface, the step hole at the rear end is a plug threaded hole, the step hole at the front end is a clamping pin hole, the step hole in the middle is a medium cavity, adjacent medium cavities are connected, and the outermost medium cavity is connected to the control hole on the side.

6. The adaptable clamping vise according to claim 5, characterized in that: An adjusting shaft limiting bracket (6) is installed outside the control hole, and the adjusting shaft (7) is installed in the adjusting shaft limiting bracket (6).

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