Clamp for machining mechanical parts

Abstract

The clamp for machining the mechanical parts is characterized in that the clamp comprises a base and a fixing frame, the right side of the base is annularly arranged, a bottom hole is formed in the right side of the base, and three sets of horizontal positioning mechanisms are evenly arranged on the edge of the top of the bottom hole; the fixing frame is fixedly arranged on the top of the left side of the base in an inverted-L shape, the right side of the fixing frame is vertically in threaded connection with a lead screw, the outer side of the middle of the lead screw is in threaded connection with a sliding block, and a pressing block is fixedly arranged on the right side of the sliding block. According to the clamp, through the three sets of fixing clamping blocks evenly arranged around the bottom hole, self-centering fixing can be conducted on the conical workpiece in three directions, the conical workpiece can be fixed more stably in the horizontal direction, and clamping of the conical workpieces with different tapers and sizes can be achieved; and through the arrangement of the lead screw and the pressing block, the conical workpieces with different heights can be fixed in the vertical direction.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a clamp for processing mechanical parts. Background Art

[0002] A fixture is a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a fixture.

[0003] However, the existing clamps are difficult to effectively clamp the tapered workpieces. The tapered workpieces are prone to deflection during processing, which affects the processing accuracy. In addition, for workpieces of different tapers and sizes, special clamps need to be designed separately, which is costly and affects production efficiency. Therefore, the utility model provides a clamp for machining mechanical parts, which can effectively solve the above problems. Utility Model Content

[0004] The utility model aims to provide a clamp for machining mechanical parts in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A clamp for machining mechanical parts, characterized in that it comprises: a base and a fixed frame, the right side of the base is arranged in a ring shape, a bottom hole is opened on the right side of the base, three groups of horizontal positioning mechanisms are evenly arranged on the top edge of the bottom hole, the fixed frame is in an inverted "L" shape and is fixedly arranged on the left top of the base, a screw rod is vertically threadedly connected to the right side of the fixed frame, a slider is threadedly connected to the middle outer side of the screw rod, and a pressure block is fixedly arranged on the right side of the slider.

[0007] Furthermore, the horizontal positioning mechanism includes: a mounting seat, a fixed clamp block and a connecting shaft, the mounting seat is U-shaped and fixedly arranged on the top edge of the bottom hole, and the middle part of the fixed clamp block is rotatably arranged on the inner middle part of the mounting seat through the connecting shaft.

[0008] Furthermore, the back side of the fixed clamp block is arranged in a "V" shape, and protrusions are fixedly arranged at both ends of the inner side of the fixed clamp block, the protrusions have the same height, and the edges of the protrusions are arranged with rounded corners.

[0009] Furthermore, a cross bar is fixedly arranged between the inner bottom of the mounting seat, and the cross bar is located outside the bottom of the fixed clamping block.

[0010] Furthermore, the top end of the screw rod extends to the top of the fixing frame, a handle is fixedly provided on the top end of the screw rod, and the bottom end of the screw rod is rotatably connected to the base.

[0011] Furthermore, a guide rod is arranged in parallel on the left side of the screw rod, and two ends of the guide rod are respectively fixedly connected to the fixing frame and the base, and the left side of the sliding block is sleeved on the outside of the guide rod and is slidably connected thereto.

[0012] Furthermore, a slot is provided on the right side of the pressing block, and a top block is fixedly provided on the bottom of the right side of the pressing block, and the top block is provided in a semi-cylindrical shape.

[0013] Furthermore, a conical workpiece is detachably arranged between the horizontal positioning mechanism and the pressing block.

[0014] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0015] The clamp of the utility model can perform self-centering fixation on the conical workpiece in three directions by means of three groups of fixed clamping blocks evenly arranged around the bottom hole, so that the conical workpiece can be fixed more stably in the horizontal direction, and can clamp conical workpieces of different tapers and sizes; by providing a screw rod and a pressure block, conical workpieces of different heights can be fixed in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the conical workpiece structure of the utility model;

[0018] The reference numerals include:

[0019] Base 1; mounting seat 2; fixing clamp 3; connecting shaft 4; cross bar 5; protrusion 6; bottom hole 7; fixing frame 8; screw rod 9; guide rod 10; handle 11; slider 12; conical workpiece 13; pressing block 14; slot 15; top block 16. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0023] Example

[0024] See also Figure 1-2 The fixture of this embodiment includes: a base 1 and a fixing frame 8, the right side of the base 1 is arranged in an annular shape, a bottom hole 7 is opened on the right side of the base 1, and three groups of horizontal positioning mechanisms are evenly arranged on the top edge of the bottom hole 7, the fixing frame 8 is fixedly arranged on the left top of the base 1 in an inverted "L" shape, a screw rod 9 is vertically threadedly connected to the right side of the fixing frame 8, a slider 12 is threadedly connected to the middle outer side of the screw rod 9, and a pressing block 14 is fixedly arranged on the right side of the slider 12; during processing, the smaller top surface of the conical workpiece 13 is placed between the three groups of horizontal positioning mechanisms facing the bottom hole 7, and the conical workpiece 13 can be self-centering clamped under the action of its own gravity, so that its axis always remains in a vertical state, and then the slider 12 is driven downward by the screw rod 9, and the conical workpiece 13 is fixed in the vertical direction by the pressing block 14;

[0025] The horizontal positioning mechanism includes: a mounting seat 2, a fixed clamping block 3 and a connecting shaft 4, wherein the mounting seat 2 is fixedly arranged on the top edge of the bottom hole 7 in a "U" shape, and the middle part of the fixed clamping block 3 is rotatably arranged on the inner middle part of the mounting seat 2 through the connecting shaft 4; the back of the fixed clamping block 3 is arranged in a "V" shape, and protrusions 6 are fixedly arranged at both ends of the inner side of the fixed clamping block 3, the protrusions 6 have the same height, and the edges of the protrusions 6 are provided with chamfers; a cross bar 5 is fixedly arranged between the inner bottom of the mounting seat 2, and the cross bar 5 is located between the fixed The bottom outer side of the fixed clamp block 3; when the conical workpiece 13 is placed in the middle of the three sets of horizontal positioning mechanisms, the top end of the fixed clamp block 3 is driven to rotate around the connecting shaft 4 toward the outer side of the mounting seat 2 until the protrusions 6 at both ends of the fixed clamp block 3 abut against the side walls of the conical workpiece 13. Through the three sets of fixed clamp blocks 3 evenly arranged around the bottom hole 7, the conical workpiece 13 can be self-centeringly fixed in three directions, so that the conical workpiece 13 is fixed more firmly in the horizontal direction, and the conical workpieces 13 of different tapers and sizes can be clamped. The cross bar 5 can prevent the fixed clamp block 3 from flipping between the mounting seats 2;

[0026] The top end of the screw rod 9 extends to the top of the fixed frame 8, and the top end of the screw rod 9 is fixedly provided with a handle 11, and the bottom end of the screw rod 9 is rotatably connected to the base 1; a guide rod 10 is arranged in parallel on the left side of the screw rod 9, and the two ends of the guide rod 10 are respectively fixedly connected to the fixed frame 8 and the base 1, and the left side of the slider 12 is sleeved on the outside of the guide rod 10 and slidably connected thereto; a slot 15 is provided on the right side of the pressure block 14, and a top block 16 is fixedly provided on the right bottom of the pressure block 14, and the top block 16 is arranged in a semi-cylindrical shape; after the fixing clamp 3 is fixed, the handle 11 is turned to drive the screw rod 9 to start rotating, so that the slider 12 threadedly connected thereto slides downward along the guide rod, driving the pressure block 14 to move downward until the top block 16 abuts against the larger bottom surface of the conical workpiece 13, thereby realizing the fixation of the conical workpiece 13 in the vertical direction;

[0027] A conical workpiece 13 is detachably disposed between the horizontal positioning mechanism and the pressing block 14 .

[0028] When in use, the smaller top surface of the conical workpiece 13 is placed between the three groups of horizontal positioning mechanisms facing the bottom hole 7. When the conical workpiece 13 moves downward, its side wall first generates an outward thrust on the protrusion 6 at the top of the fixed clamp block 3, driving the top of the fixed clamp block 3 to rotate around the connecting shaft 4 toward the outside of the mounting seat 2 until the protrusions 6 at both ends of the fixed clamp block 3 abut against the side walls of the conical workpiece 13. Through the three groups of fixed clamp blocks 3 evenly arranged around the bottom hole 7, the conical workpiece 13 can be self-centering and fixed in three directions, so that The conical workpiece 13 is fixed more stably in the horizontal direction, and can clamp the conical workpiece 13 of different tapers and sizes. The cross bar 5 can prevent the fixed clamping block 3 from flipping between the mounting seats 2. After the fixed clamping block 3 is fixed, the handle 11 is turned to drive the screw 9 to start rotating, so that the slider 12 threadedly connected thereto slides downward along the guide rod 10, driving the pressure block 14 to move downward until the top block 16 abuts against the larger bottom surface of the conical workpiece 13, thereby achieving the fixation of the conical workpiece 13 in the vertical direction.

[0029] In summary, the clamp of the utility model can perform self-centering fixation on the conical workpiece 13 in three directions by means of three groups of fixed clamping blocks 3 evenly arranged around the bottom hole 7, so that the conical workpiece 13 can be fixed more stably in the horizontal direction, and can clamp conical workpieces 13 of different tapers and sizes; by providing a screw rod 9 and a pressure block 14, it can fix conical workpieces 13 of different heights in the vertical direction.

[0030] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for machining mechanical parts, characterized in that: include: A base (1) and a fixing frame (8), wherein the right side of the base (1) is arranged in a ring shape, a bottom hole (7) is opened on the right side of the base (1), three groups of horizontal positioning mechanisms are evenly arranged on the top edge of the bottom hole (7), the fixing frame (8) is arranged in an inverted "L" shape and is fixedly arranged on the top of the left side of the base (1), the right side of the fixing frame (8) is vertically threadedly connected to a screw rod (9), the middle outer side of the screw rod (9) is threadedly connected to a slider (12), and a pressure block (14) is fixedly arranged on the right side of the slider (12).

2. The clamp according to claim 1, characterized in that: The horizontal positioning mechanism comprises: a mounting seat (2), a fixed clamping block (3) and a connecting shaft (4); the mounting seat (2) is fixedly arranged on the top edge of the bottom hole (7) in a "U" shape; the middle part of the fixed clamping block (3) is rotatably arranged on the inner middle part of the mounting seat (2) via the connecting shaft (4).

3. The clamp according to claim 2, characterized in that: The back side of the fixed clamp block (3) is arranged in a "V" shape, and protrusions (6) are fixedly arranged at both ends of the inner side of the fixed clamp block (3), the protrusions (6) have a uniform height, and the edges of the protrusions (6) are arranged with rounded corners.

4. The clamp according to claim 2, characterized in that: A cross bar (5) is fixedly arranged between the inner bottom of the mounting seat (2), and the cross bar (5) is located outside the bottom of the fixed clamp block (3).

5. The clamp according to claim 1, characterized in that: The top end of the screw rod (9) extends to the top of the fixed frame (8), a handle (11) is fixedly provided at the top end of the screw rod (9), and the bottom end of the screw rod (9) is rotatably connected to the base (1).

6. The clamp according to claim 1, characterized in that: A guide rod (10) is arranged parallel to the left side of the screw rod (9), and the two ends of the guide rod (10) are respectively fixedly connected to the fixing frame (8) and the base (1), and the left side of the sliding block (12) is sleeved on the outside of the guide rod (10) and is slidably connected thereto.

7. The clamp according to claim 1, characterized in that: A slot (15) is provided on the right side of the pressing block (14), and a top block (16) is fixedly provided on the bottom of the right side of the pressing block (14), wherein the top block (16) is provided in a semi-cylindrical shape.

8. The clamp according to claim 1, characterized in that: A conical workpiece (13) is detachably arranged between the horizontal positioning mechanism and the pressing block (14).

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