Adjustable clamp and surface grinding machine thereof

Abstract

The utility model relates to the technical field of clamps, and discloses an adjustable clamp and a surface grinding machine thereof, the adjustable clamp comprises a bottom frame, the bottom frame is a [-shaped rod with an upward opening, the two ends of the top of the bottom frame are symmetrically and fixedly connected with an electric cylinder and a soft clamp structure, the soft clamp structure is arranged on the wall surface of a push plate and used for clamping a workpiece, and the soft clamp structure comprises a fixed frame, an elastic rod and a rotating column; the fixed frames are fixedly connected to the side wall faces of the push plates, the elastic rods are movably connected to the wall faces of the fixed frames, the rotating columns are arranged on the wall faces of the fixed frames, and the rotating columns and the elastic rods on the wall faces of the symmetrical fixed frames are symmetrical. The flexible clamp structure can automatically adapt to the size of a workpiece and effectively prevent the wall surface of the workpiece from being damaged when the workpiece is clamped through the cooperation of the movable rotary column and the elastic rod with elasticity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of fixture, concretely relates to an adjustable fixture and plane grinding machine. BACKGROUND

[0002] Adjustable fixture is an important concept in mechanical engineering, refers to through adjusting or replacing individual parts, can adapt to the fixture of multiple workpiece processing.

[0003] The commonly used fixture basically through rigid clamping to fix the workpiece when clamping the workpiece, but rigid clamping can have higher stability when fixing the workpiece, but rigid clamping when clamping the workpiece that is easy to damage will have a great probability to cause its damage, so the present urgent need can prevent the adjustable fixture of workpiece damage.

[0004] In view of this, the utility model is provided. UTILITY MODEL CONTENTS

[0005] To solve the technical problem that the commonly used fixture can damage the fixture when clamping the workpiece, the basic concept of the technical scheme adopted by the utility model is:

[0006] An adjustable fixture, comprising:

[0007] The base frame is an open upward character-shaped rod, and the top of the base frame is fixedly connected with electric cylinders at both ends symmetrically, each electric cylinder is fixedly connected with a push plate at the end facing the direction of the other electric cylinder, and the push plate is a rectangular plate.

[0008] The soft clamping structure is arranged on the wall surface of the push plate for clamping the workpiece, and comprises a fixed frame, an elastic rod and a rotating column, the fixed frame is fixedly connected to the side wall surface of each push plate, the elastic rod is movably connected to the wall surface of the fixed frame, and the rotating column is arranged on the wall surface of the fixed frame, and the rotating column and the elastic rod on the wall surface of the symmetric fixed frame are mutually symmetrical.

[0009] As a preferred embodiment of the utility model, the fixed frame is a rectangular frame, the rotating column is a cylindrical column with a concave inward middle section, the rotating column is located in the cavity of the fixed frame, a plurality of rotating columns are uniformly arranged in the cavity of the fixed frame, and the elastic rod is a character-shaped rod with an opening facing the direction of the corresponding side of the fixed frame, and the material of the elastic rod is rubber.

[0010] As a preferred embodiment of the utility model, the soft clamping structure further comprises a fixed rail, a retraction groove, a spring groove, a retraction plate and a rotating plate, the fixed rail is fixedly connected in the cavity of each fixed frame symmetrically up and down, the elastic rod is fixedly connected to the side wall surface of each fixed rail respectively, the retraction groove is arranged on the wall surface of each symmetric fixed rail facing the other party, the spring groove is arranged in each retraction groove, the retraction plate is slidably connected in each retraction groove, and the rotating plate is fixedly connected to the wall surface of each retraction plate, and the rotating column is rotatably connected to the wall surface of the rotating plate.

[0011] As a preferred embodiment of the utility model, the retraction groove is evenly provided with a plurality of retraction grooves on the wall surface of the fixed rail, each retraction groove is slidably connected with a retraction plate, each rotating column is rotatably connected with a corresponding rotating plate on the upper and lower wall surfaces, and each spring groove is provided with a spring, which can push the retraction plate towards the direction of the other retraction plate.

[0012] As a preferred embodiment of the utility model, the wall surface of the fixed frame is provided with an adjusting structure, the adjusting structure comprises an upper rail, a screw rod and a lower rail, the upper rail is fixedly connected to the top of each fixed frame, the screw rod is rotatably connected to the wall surface of each upper rail, and the lower rail is fixedly connected to the bottom of each fixed frame.

[0013] As a preferred embodiment of the utility model, the adjusting structure further comprises an adjusting plate and a bottom rod, the adjusting plate is slidably connected between the two sides below the upper rail and the two sides on the top of the lower rail, and the bottom rod is fixedly connected to the front wall surface of the symmetrical adjusting plate.

[0014] As a preferred embodiment of the utility model, the side wall surface of the adjusting plate can be attached to the side wall surface of the fixed frame, the adjusting plate is a rectangular plate, the screw rod can pass through the wall surface of the adjusting plate and be threadedly connected with the adjusting plate, and the bottom rod is a rectangular rod.

[0015] A plane grinding machine comprises a bed body and further comprises the adjustable clamp.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The soft clamp structure can protect the workpiece during clamping, and the soft clamp structure can automatically adapt to the size of the workpiece and effectively prevent the damage of the wall surface of the workpiece by cooperating with the elastic rod having elasticity.

[0018] 2. The adjusting structure can adapt to the workpiece with a size difference at the bottom by adjusting the horizontal height of the bottom rod, so that the workpiece with a size difference at the bottom can also be fixed and clamped.

[0019] 3. The adjustable clamp can not only fix the workpiece but also protect the wall surface of the workpiece from being damaged during clamping.

[0020] The specific embodiments of the utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] In the drawings:

[0022] Figure 1 It is a perspective view of the utility model;

[0023] Figure 2The utility model discloses an electric cylinder wall surface structure perspective view.

[0024] Figure 3 The utility model discloses a solid rail top structure diagram.

[0025] Figure 4 The utility model discloses a solid rail wall surface exploded view.

[0026] Figure 5 The utility model discloses a bottom rod and screw rod exploded view.

[0027] In the drawing: 20, bottom frame; 21, electric cylinder; 22, push plate; 30, solid frame; 31, solid rail; 32, elastic rod; 33, retraction groove; 34, spring groove; 35, retraction plate; 36, rotating plate; 37, rotating column; 40, upper rail; 41, screw rod; 42, lower rail; 43, adjusting plate; 44, bottom rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the following will be combined with the drawing in the utility model embodiment, and the technical scheme in the embodiment is clearly and completely described, and the following embodiment is used to explain the utility model.

[0029] As Figure 1 and Figure 2 shown, an adjustable clamp includes: bottom frame 20, bottom frame 20 is open towards the top of the character-shaped rod, and the top of the bottom frame 20 is fixedly connected with electric cylinders 21 at both ends symmetrically, each electric cylinder 21 is fixedly connected with a push plate 22 at the end towards the direction of the other electric cylinder 21, the push plate 22 is a rectangular plate, and the electric cylinder 21 is electrically connected with the corresponding power supply, which is prior art and will not be described here

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a soft clamp structure is arranged on the wall surface of the push plate 22 and is used for clamping workpieces, and the soft clamp structure includes a solid frame 30, an elastic rod 32 and a rotating column 37, the solid frame 30 is fixedly connected to the side wall surface of each push plate 22, the elastic rod 32 is movably connected to the wall surface of the solid frame 30, and the rotating column 37 is arranged on the wall surface of the solid frame 30; the rotating column 37 and the elastic rod 32 on the wall surface of the symmetric solid frame 30 are mutually symmetrical.

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the fixed frame 30 is a rectangular frame, the rotating column 37 is a cylindrical column with a concave middle section, the rotating column 37 is located in the cavity of the fixed frame 30, multiple rotating columns 37 are uniformly arranged in the cavity of the fixed frame 30, the elastic rod 32 is a U-shaped rod with an opening facing the direction of the corresponding side of the fixed frame 30, the material of the elastic rod 32 is rubber, and the soft clamping structure further comprises a fixed rail 31, a retraction groove 33, a spring groove 34, a retraction plate 35, and a rotating plate 36. The fixed rail 31 is fixedly connected symmetrically in the cavity of each fixed frame 30, the elastic rod 32 is fixedly connected to the side wall surface of each fixed rail 31, the retraction groove 33 is arranged on the wall surface of each symmetric fixed rail 31 facing the other side, the spring groove 34 is arranged in each retraction groove 33, the retraction plate 35 is slidingly connected in each retraction groove 33, the rotating plate 36 is fixedly connected to the wall surface of each retraction plate 35, the rotating column 37 is rotatably connected to the wall surface of the rotating plate 36, and multiple retraction grooves 33 are uniformly arranged on the wall surface of the fixed rail 31. The retraction plate 35 is slidingly connected in each retraction groove 33, the rotating column 37 is rotatably connected to the corresponding rotating plate 36 on the upper and lower wall surfaces, and a spring is installed in each spring groove 34. The spring can push the retraction plate 35 towards the direction of the other retraction plate 35.

[0032] In specific use, the workpiece to be clamped is placed between the symmetric fixed frames 30, and then the power of the electric cylinder 21 is started. The electric cylinder 21 can push the push plate 22 to move towards the workpiece, and the fixed frame 30 can move synchronously with the movement of the push plate 22. The fixed frame 30 can drive the fixed rail 31, the elastic rod 32, and the rotating column 37 to move synchronously. The rotating column 37 will first contact the wall surface of the workpiece, and then, with the gradual movement of the fixed frame 30, the rotating column 37 can drive the retraction plate 35 to compress the spring in the spring groove 34 and retract into the space between the symmetric fixed rails 31. The elastic rod 32 can automatically deform along the wall surface of the workpiece. When the fixed frame 30 is about to contact the wall surface of the workpiece, the extension of the electric cylinder 21 is stopped.

[0033] In summary, the soft clamping structure can protect the workpiece during clamping. The soft clamping structure, through the cooperation of the movable rotating column 37 and the elastic elastic rod 32, can automatically adapt to the size of the workpiece during clamping and effectively prevent damage to the wall surface of the workpiece.

[0034] As Figure 1 , Figure 2 and Figure 5As shown, the wall of the fixed frame 30 is provided with an adjustment structure, which includes an upper rail 40, a screw 41 and a lower rail 42. The upper rail 40 is fixedly connected to the top of each fixed frame 30, the screw 41 is rotatably connected to the wall of each upper rail 40, and the lower rail 42 is fixedly connected to the bottom of each fixed frame 30. The adjustment structure also includes an adjustment plate 43 and a bottom rod 44. The adjustment plate 43 is slidably connected between the lower two sides of the upper rail 40 and the top two sides of the lower rail 42. The bottom rod 44 is fixedly connected to the front wall of the symmetrical adjustment plate 43. The side wall of the adjustment plate 43 can fit against the side wall of the fixed frame 30. The adjustment plate 43 is a rectangular plate. The screw 41 can pass through the wall of the adjustment plate 43 and be threadedly connected to the adjustment plate 43. The bottom rod 44 is a rectangular rod.

[0035] In practical use, when the dimensions on both sides of the bottom of the workpiece are different, the screw 41 is rotated. The screw 41 can drive the adjusting plate 43 to move when it rotates. The adjusting plate 43 can drive the bottom rod 44 to move synchronously. The screw 41 can be stopped when the adjusting plate 43 and the bottom rod 44 are in contact with the bottom of the workpiece.

[0036] In summary, by setting up an adjustment structure, the horizontal height of the base rod 44 can be adjusted to accommodate workpieces with varying bottom dimensions, thus enabling the workpieces with varying bottom dimensions to be fixedly clamped.

[0037] A surface grinder, not shown in the figure, includes a bed and an adjustable fixture containing all of the above-mentioned components;

[0038] By setting adjustable clamps, the workpiece can not only be fixed when clamped, but its surface can also be protected from damage.

[0039] Working principle: Place the workpiece to be clamped between the symmetrical fixed frames 30, and then turn on the power of the electric cylinder 21. The electric cylinder 21 can push the push plate 22 to move towards the workpiece. As the push plate 22 moves, the fixed frame 30 can move synchronously. The fixed frame 30 can drive the fixed rail 31, the elastic rod 32 and the rotating column 37 to move synchronously. The rotating column 37 will first contact the wall of the workpiece. Then, as the fixed frame 30 moves gradually, the rotating column 37 can drive the retraction plate 35 to compress the spring along the spring groove 34 and retract into the symmetrical fixed rail 31. The elastic rod 32 can automatically deform with the wall of the workpiece. When the fixed frame 30 is about to contact the wall of the workpiece, the extension of the electric cylinder 21 can be stopped.

[0040] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. An adjustable clamp, characterized in that, include: The base frame (20) is a U-shaped rod with the opening facing upward. Electric cylinders (21) are symmetrically fixed at both ends of the top of the base frame (20). Each electric cylinder (21) has a push plate (22) fixedly connected at the end facing the other electric cylinder (21). The push plate (22) is a rectangular plate. The soft clamping structure is set on the wall of the push plate (22) for clamping the workpiece. The soft clamping structure includes: a fixed frame (30), an elastic rod (32) and a rotating column (37). The fixed frame (30) is fixedly connected to the side wall of each push plate (22). The elastic rod (32) is movably connected to the wall of the fixed frame (30). The rotating column (37) is set on the wall of the fixed frame (30). The rotating column (37) and the elastic rod (32) on the wall of the symmetrical fixed frame (30) are symmetrical to each other.

2. An adjustable clamp according to claim 1, wherein, The fixed frame (30) is a rectangular frame, the rotating column (37) is a cylinder with the middle section recessed inward, the rotating column (37) is located in the cavity of the fixed frame (30), and multiple rotating columns (37) are evenly arranged in the cavity of the fixed frame (30). The elastic rod (32) is a U-shaped rod with the opening facing the fixed frame (30) on the corresponding side, and the elastic rod (32) is made of rubber.

3. An adjustable clamp according to claim 1, wherein, The soft clamp structure also includes a fixed rail (31), a retraction groove (33), a spring groove (34), a retraction plate (35), and a rotating plate (36). The fixed rail (31) is symmetrically fixedly connected in the cavity of each fixed frame (30). The elastic rod (32) is fixedly connected to the side wall of each fixed rail (31). The retraction groove (33) is opened on the wall of each symmetrical fixed rail (31) facing the other. The spring groove (34) is opened in each retraction groove (33). The retraction plate (35) is slidably connected in each retraction groove (33). The rotating plate (36) is fixedly connected to the wall of each retraction plate (35). The rotating column (37) is rotatably connected to the wall of the rotating plate (36).

4. An adjustable clamp according to claim 3, wherein, The retraction groove (33) is evenly opened in multiple places on the wall of the fixed rail (31). Each retraction groove (33) is slidably connected to a retraction plate (35). The upper and lower walls of each rotating column (37) are rotatably connected to the corresponding rotating plate (36). Each spring groove (34) is equipped with a spring, which can push the retraction plate (35) towards the other side of the retraction plate (35).

5. An adjustable clamp as defined in claim 1, wherein, The wall of the fixed frame (30) is provided with an adjustment structure, which includes an upper rail (40), a screw (41) and a lower rail (42). The upper rail (40) is fixedly connected to the top of each fixed frame (30), the screw (41) is rotatably connected to the wall of each upper rail (40), and the lower rail (42) is fixedly connected to the bottom of each fixed frame (30).

6. An adjustable clamp according to claim 5, wherein, The adjustment structure also includes an adjustment plate (43) and a bottom rod (44). The adjustment plate (43) is slidably connected between the two sides below the upper rail (40) and the two sides at the top of the lower rail (42). The bottom rod (44) is fixedly connected to the front wall of the symmetrical adjustment plate (43).

7. An adjustable clamp according to claim 6, wherein, The side wall surface of the adjusting plate (43) can be attached to the side wall surface of the fixed frame (30), the adjusting plate (43) is a rectangular plate, the screw rod (41) can pass through the wall surface of the adjusting plate (43) and is threadedly connected with the adjusting plate (43), and the bottom rod (44) is a rectangular rod.

8. A surface grinder comprising a bed, characterised in that Also included is an adjustable clamp as claimed in claims 1-7.

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