Clamp for machining mechanical part

Abstract

The utility model relates to the technical field of clamps, and discloses a clamp for machining a mechanical part, which comprises a clamp main body, a lifting platform for placing the mechanical part and two arc-shaped clamping pieces which are positioned above the lifting platform and are in bilateral symmetry are arranged in an inner cavity of the clamp main body; the bottom of the inner cavity of the clamp body is further provided with a driving device for controlling the lifting table to ascend and descend and controlling the two arc-shaped clamping pieces to move relatively, the driving device comprises a motor installed on the inner wall of the clamp body, and the bottom of the inner cavity of the clamp body is provided with two rotating rods which are in bilateral symmetry; the end of the rotating rod located on one side is connected with the output end of a motor, the two rotating rods are each provided with an arc-shaped gear, and the two arc-shaped gears are meshed with each other. The fixture has the following advantages and effects that the fixture is convenient to clamp, and a workpiece can be quickly positioned and machined.

Description

Technical Field

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

[0002] When machining mechanical equipment parts on machine tools, in order to make the surface of the parts meet the technical requirements such as size, geometry and relative position accuracy with other surfaces specified in the drawings, the parts must be fixed before machining. The fixture for parts machining is a clamping tool that can clamp the parts when machining mechanical equipment parts. With the progress of life, cylindrical parts are widely used in equipment assembly in various industries.

[0003] However, in the prior art, the clamps used can only play a single clamping and fixing role for mechanical parts. The clamping is cumbersome and the parts cannot be quickly adjusted to the actual processing height, resulting in the inconvenience of using the clamps and affecting the processing efficiency. Therefore, it is necessary to propose a new type of clamp for mechanical parts processing to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a clamp for machining mechanical parts, which has the advantages of convenient clamping and can quickly position and machine the workpiece.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a fixture for processing mechanical parts, including a fixture body, an inner cavity of the fixture body is provided with a lifting platform for placing mechanical parts and two arc-shaped clamping pieces located above the lifting platform and symmetrical on the left and right, and the bottom of the inner cavity of the fixture body is also provided with a driving device for simultaneously controlling the lifting and lowering of the lifting platform and the relative displacement of the two arc-shaped clamping pieces, and the driving device includes a motor installed on the inner wall of the fixture body, and two rotating rods symmetrical on the left and right are provided at the bottom of the inner cavity of the fixture body, and the end of the rotating rod on one side is connected to the output end of the motor, and an arc gear is provided on each of the two rotating rods, and the two arc gears are meshed with each other. A pushing frame and a main rotating plate are also fixedly installed on the rotating rod, and the other end of the main rotating plate is hinged with a secondary rotating plate rotatably connected to the lifting platform, and a moving frame is fixedly installed on the side of the arc-shaped clamping piece, and the upper end of the pushing frame is hinged to the moving frame.

[0006] By adopting the above technical scheme, when clamping the mechanical parts, the lifting platform is located at the top of the inner cavity of the fixture body, and the staff only needs to place the mechanical parts on the lifting platform and drive the motor to rotate the rotating rod on the right side, driving the main rotating plate and the arc gear to rotate. Under the engagement of the two arc gears, the two rotating rods rotate, and the auxiliary rotating plate is driven by the main rotating plate to gradually turn to a horizontal state, thereby controlling the lifting platform and the mechanical parts to move downward as a whole. While the rotating rods on both sides rotate, the push frame is driven to shorten the distance between the moving frames on both sides, so that the two arc clamping plates are close to each other, and the mechanical parts are quickly clamped and positioned, which can not only clamp the workpiece quickly and stably, but also directly drop the workpiece to the processing position, thereby improving the processing efficiency.

[0007] The utility model is further configured as follows: an opening for inserting mechanical parts is processed on the upper end surface of the clamp body, and bayonet holes for sliding of the movable frame are processed on both the left and right side walls.

[0008] By adopting the above technical solution, when the lifting platform is located at the top of the inner cavity of the fixture body, the mechanical parts can be quickly placed on the lifting platform through the opening, and the bayonet on both sides allows the movable frame to slide left and right and lift without restriction.

[0009] The utility model is further configured as follows: the bottom of the mechanical component is a mounting chassis, and a plurality of positioning columns for limiting the mounting chassis are fixedly mounted on the upper end surface of the lifting platform.

[0010] By adopting the above technical solution, when the mechanical parts are placed on the lifting platform, the chassis at the lower end is limited by the positioning columns, so that the placement of the mechanical parts is more stable.

[0011] The utility model is further configured as follows: two left-right symmetrical slide rails are installed on the inner top wall of the clamp body, a telescopic rod is fixedly installed on the upper end of the movable frame, and a sliding block adapted to the slide rails is installed on the top end of the telescopic rod.

[0012] By adopting the above technical solution, when the push frame pushes the mobile frame to move left and right, the mobile frame will have a certain rise and fall. Through the up and down extension of the telescopic rod, and the horizontal sliding of the slider and the slide rail, the movement of the mobile frame is more stable and reliable, and the arc-shaped clamping piece can be pushed to clamp and fix the mechanical parts more stably.

[0013] The utility model is further configured as follows: the inner cavity of the clamp body is further provided with a connecting frame arranged in parallel with the pushing frame, and the two ends of the connecting frame are rotatably connected with the moving frame and the inner wall of the clamp body respectively.

[0014] By adopting the above technical solution, when the pushing frame pushes the moving frame to move left and right, the connecting frame also swings synchronously to further support the moving frame and make its sliding more stable.

[0015] The utility model is further configured as follows: an anti-slip pad is installed on the inner wall of the arc-shaped clamping piece.

[0016] By adopting the above technical solution, the provision of the anti-slip pad can further enhance the clamping stability of the mechanical parts.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model places the mechanical parts on the lifting platform, drives the motor to drive the rotating rod on the right to rotate, and under the meshing of two arc gears, makes the rotating rod on the left rotate relatively, which can drive the push frame to shorten the distance between the moving frames on both sides, so that the two arc clamping pieces are close to each other, and the mechanical parts are quickly clamped and positioned. The clamping process is very simple and convenient, which is convenient for practical use.

[0019] 2. In the utility model, while the two rotating rods rotate relative to each other, the main rotating plate drives the auxiliary rotating plate to gradually turn to a horizontal state, thereby controlling the overall downward movement of the lifting platform and the mechanical parts, and directly moving the mechanical parts down to the processing point, which is convenient for subsequent processing and can greatly improve the production and processing efficiency of the mechanical parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The utility model is an overall structural diagram of a fixture for machining mechanical parts.

[0022] Figure 2 This utility model Figure 1 The overall connection diagram of the middle push frame and the mobile frame 47.

[0023] Figure 3 This utility model Figure 1 Connection diagram of the middle movable frame and the arc clamping piece.

[0024] In the figure, 1. clamp body; 2. lifting platform; 21. positioning column; 3. arc-shaped clamping plate; 31. anti-skid pad; 4. driving device; 41. motor; 42. rotating rod; 43. arc-shaped gear; 44. pushing frame; 45. main rotating plate; 46. auxiliary rotating plate; 47. moving frame; 48. connecting frame; 5. slide rail; 6. telescopic rod; 7. slider. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0026] like Figures 1 to 3 As shown, a fixture for machining mechanical parts comprises a fixture body 1, an inner cavity of the fixture body 1 is provided with a lifting platform 2 for placing mechanical parts and two arc-shaped clamping pieces 3 located above the lifting platform 2 and symmetrical on the left and right, a driving device 4 for simultaneously controlling the lifting and lowering of the lifting platform 2 and the relative displacement of the two arc-shaped clamping pieces 3 is also provided at the bottom of the inner cavity of the fixture body 1, the driving device 4 comprises a motor 41 installed on the inner wall of the fixture body 1, two rotating rods 42 symmetrical on the left and right are provided at the bottom of the inner cavity of the fixture body 1, the end of the rotating rod 42 on one side is connected to the output end of the motor 41, an arc-shaped gear 43 is provided on each of the two rotating rods 42, the two arc-shaped gears 43 are meshed with each other, a pushing frame 44 and a main rotating plate 45 are also fixedly installed on the rotating rod 42, the other end of the main rotating plate 45 is hinged with a secondary rotating plate 46 rotatably connected to the lifting platform 2, a moving frame 47 is fixedly installed on the side of the arc-shaped clamping piece 3, and the upper end of the pushing frame 44 is hinged to the moving frame 47.

[0027] Furthermore, an opening for inserting mechanical parts is processed on the upper end surface of the clamp body 1, and slots for sliding the movable frame 47 are processed on both the left and right side walls.

[0028] Furthermore, the bottom of the mechanical component is a mounting chassis, and a plurality of positioning columns 21 for limiting the mounting chassis are fixedly mounted on the upper end surface of the lifting platform 2 .

[0029] Furthermore, two left-right symmetrical slide rails 5 are installed on the inner top wall of the clamp body 1 , a telescopic rod 6 is fixedly installed on the upper end of the movable frame 47 , and a slider 7 adapted to the slide rail 5 is installed on the top end of the telescopic rod 6 .

[0030] Furthermore, a connecting frame 48 arranged parallel to the pushing frame 44 is installed in the inner cavity of the clamp body 1 , and two ends of the connecting frame 48 are rotatably connected to the moving frame 47 and the inner wall of the clamp body 1 respectively.

[0031] Furthermore, an anti-slip pad 31 is installed on the inner wall of the arc-shaped clamping piece 3 .

[0032] The working principle of the utility model is: a cylindrical mechanical component is placed on the lifting platform 2, and the chassis of the cylindrical component is limited by the positioning column 21, and then the motor 41 is driven to rotate the rotating rod 42 on the right side, driving the main rotating plate 45 and the arc gear 43 to rotate, and the two rotating rods 42 are rotated under the meshing of the two arc gears 43, and the auxiliary rotating plate 46 is driven by the main rotating plate 45 to gradually turn to a horizontal state, thereby controlling the lifting platform 2 and the mechanical component to move downward as a whole, and the rotating rods 42 on both sides rotate while driving the pushing frame 44 to push the moving frames 47 on both sides to shorten the distance, and the parallel push of the connecting frame 48 makes the moving frame 47 slide smoothly, so that the two arc clamping pieces 3 are close, and the mechanical component is quickly clamped and positioned, which can not only clamp the workpiece quickly and stably, but also directly drop the workpiece to the processing position, which can improve the processing efficiency.

Claims

1. A fixture for machining mechanical parts, comprising a fixture body (1), characterized in that: The inner cavity of the clamp body (1) is provided with a lifting platform (2) for placing mechanical parts and two arc-shaped clamping pieces (3) located above the lifting platform (2) and symmetrical on the left and right. The bottom of the inner cavity of the clamp body (1) is also provided with a driving device (4) for simultaneously controlling the lifting and lowering of the lifting platform (2) and the relative displacement of the two arc-shaped clamping pieces (3). The driving device (4) includes a motor (41) installed on the inner wall of the clamp body (1). The bottom of the inner cavity of the clamp body (1) is provided with two symmetrical rotating rods (42) located on one side. The end of the rotating rod (42) is connected to the output end of the motor (41), and each of the two rotating rods (42) is provided with an arc gear (43), and the two arc gears (43) are meshed with each other. A push frame (44) and a main rotating plate (45) are also fixedly mounted on the rotating rod (42), and the other end of the main rotating plate (45) is hingedly connected to a secondary rotating plate (46) rotatably connected to the lifting platform (2). A moving frame (47) is fixedly mounted on the side of the arc clamping piece (3), and the upper end of the pushing frame (44) is hingedly connected to the moving frame (47).

2. A fixture for machining mechanical parts according to claim 1, characterized in that: The upper end surface of the clamp body (1) is processed with an opening for inserting mechanical parts, and the left and right side walls are processed with slots for the sliding of the moving frame (47).

3. A fixture for machining mechanical parts according to claim 2, characterized in that: The bottom of the mechanical component is a mounting chassis, and a plurality of positioning columns (21) for limiting the mounting chassis are fixedly mounted on the upper end surface of the lifting platform (2).

4. A fixture for machining mechanical parts according to claim 1, characterized in that: The inner top wall of the clamp body (1) is provided with two left-right symmetrical slide rails (5), the upper end of the movable frame (47) is fixedly provided with a telescopic rod (6), and the top end of the telescopic rod (6) is provided with a sliding block (7) adapted to the slide rail (5).

5. A fixture for machining mechanical parts according to claim 1, characterized in that: The inner cavity of the clamp body (1) is also equipped with a connecting frame (48) arranged parallel to the pushing frame (44), and the two ends of the connecting frame (48) are rotatably connected to the moving frame (47) and the inner wall of the clamp body (1) respectively.

6. A fixture for machining mechanical parts according to claim 1, characterized in that: An anti-slip pad (31) is installed on the inner wall of the arc-shaped clamping piece (3).

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