Self-adaptive clamp for servo press

Abstract

The utility model discloses a self-adaptive clamp for a servo press, and relates to the technical field of servo presses. According to the technical scheme, the self-adaptive clamp for the servo press comprises a machine body, a servo lifting mechanism is installed on the machine body, a bearing plate is arranged on the servo lifting mechanism, a clamp assembly is installed on the bearing plate, and a working mechanism is arranged on the machine body; the clamp assembly comprises a fixed block, the fixed block is fixedly connected with the bearing plate, a movable clamping block is installed at the front end of the fixed block, connecting rod mechanisms are installed at the two ends of the movable clamping block, a plurality of first chucks are rotationally installed in the movable clamping block, a plurality of second chucks are rotationally installed at the two ends of the first chucks. The utility model aims to provide the self-adaptive clamp for the servo press, so that the effect of clamping workpieces with different types and shapes when the servo press works is achieved.

Description

Technical Field

[0001] The utility model discloses an adaptive clamp for a servo press, and relates to the technical field of servo presses. Background Art

[0002] Servo press fixtures are specially designed for use with servo presses, primarily used to secure and position the workpiece during machining. Due to the high precision and high efficiency of servo presses, the design and use of fixtures must ensure that the workpiece remains stable and reliable during machining to maximize the performance of the servo press.

[0003] When operators process parts, they need to clamp the workpiece to ensure the accuracy of the press processing. The parts being processed are of different types and have different shapes. Traditional fixtures are difficult to clamp them firmly. Therefore, it is necessary to provide an adaptive fixture for servo presses to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an adaptive clamp for a servo press, so as to achieve the effect of clamping workpieces of different types and shapes when the servo press is working.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adaptive clamp for a servo press, comprising a machine body, characterized in that: a servo lifting mechanism is installed on the machine body, a receiving plate is provided on the servo lifting mechanism, a clamp assembly is installed on the receiving plate, and a working mechanism is provided on the machine body; the working mechanism includes a pressing head for performing main processing operations on the workpiece; the clamp assembly includes a fixed block, the fixed block is fixedly connected to the receiving plate in the shape of a semicircular ring, a movable clamp block is installed at the front end of the fixed block, and a connecting rod mechanism is installed at both ends of the movable clamp block for controlling the movement of the movable clamp block; several groups of first clamps are rotatably installed in the movable clamp block, several groups of first clamps are rotatably installed in the fixed block, and several groups of second clamps are rotatably installed at both ends of the first clamp; the connecting rod mechanism includes a connecting crank, the front end of the connecting crank is rotatably connected to the movable clamp block, a connecting frame is rotatably installed on the rear end of the connecting crank, the other end of the connecting frame is rotatably connected to the transmission frame, and a limiting rod is installed at the middle end of the connecting frame.

[0006] Preferably, the clamp assembly is located directly below the center axis of the pressure head.

[0007] Preferably, the movable clamping block is in the shape of a semicircular ring, and positioning shafts are rotatably mounted on both ends of the movable clamping block, and the positioning shafts are slidably mounted on both ends of the fixed block.

[0008] Preferably, two groups of connecting rod mechanisms are provided, and the connecting rod mechanisms are symmetrically distributed around the central axis of the fixed block. A transmission frame is mounted on the connecting rod mechanism, and the transmission frame is driven by a motor.

[0009] Preferably, the first clamp is semicircular in shape, and the second clamp is semicircular in shape with arc-shaped protrusions at both ends.

[0010] Preferably, the other end of the limiting rod is rotationally connected to the fixed block, the two groups of connecting rod mechanisms are rotationally connected, and the connecting frame is rotationally connected to the transmission frame.

[0011] Preferably, a slot is provided on the receiving plate, and the slot is communicated with the clamping opening of the clamp assembly.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the transmission frame is driven by the cylinder to drive the connecting rod mechanism to push or pull the movable clamping block. When the center is fixed, the movement direction of the movable clamping block is limited by the limiting rod to only make linear motion close to or away from the fixed block, thereby realizing the positioning function of the special-shaped end cover parts. After the arc-shaped protrusions set at both ends of the second clamping head contact the surface of the special-shaped end cover, it will perform adaptive rotation, and at the same time, the first clamping head will also perform adaptive rotation. Several groups of first clamping heads and second clamping heads installed on the movable clamping block and the fixed block are adjusted at the same time to directly clamp the special-shaped end cover, thereby realizing the clamping function of the special-shaped end cover parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is an overall schematic diagram of an adaptive fixture for a servo press;

[0014] Figure 2 for Figure 1 A schematic diagram of a fixture assembly of an adaptive fixture for a servo press;

[0015] Among them, the reference numerals in the figures are:

[0016] 1. Body; 2. Working mechanism; 3. Clamp assembly; 31. Fixed block; 32. Movable clamp; 33. Positioning shaft; 37. Transmission frame; 38. First chuck; 39. Second chuck; 4. Servo lifting mechanism; 41. Adapter plate; 5. Connecting rod mechanism; 51. Connecting crank; 52. Limit rod; 53. Connecting frame. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Specific implementation cases:

[0019] like Figure 1As shown, an adaptive fixture for a servo press comprises a body 1, a servo lifting mechanism 4 is mounted on the body 1, a receiving plate 41 is provided on the servo lifting mechanism 4, a fixture assembly 3 is mounted on the receiving plate 41, a working mechanism 2 is provided on the body 1, the working mechanism 2 includes a pressing head (not shown in the figure), and the fixture assembly 3 is located directly below the central axis of the pressing head;

[0020] The servo lifting mechanism 4 is driven by a motor. Its working principle is the prior art and will not be described in detail here. Its main function is to control the lifting and lowering of the clamp assembly 3 to meet the position requirements of the clamped workpiece.

[0021] The receiving plate 41 is provided with an empty slot (not shown in the figure), which is connected to the clamping opening of the clamp assembly 3 and is used for the pressing head to process the workpiece;

[0022] like Figure 2 As shown, the clamp assembly 3 includes a fixed block 31, the fixed block 31 is fixedly connected to the receiving plate 41, the fixed block 31 is in the shape of a semicircular ring, a movable clamping block 32 is installed at the front end of the fixed block 31, the movable clamping block 32 is in the shape of a semicircular ring, and positioning shafts 33 are rotatably installed at both ends of the movable clamping block 32, and the positioning shafts 33 are slidably installed at both ends of the fixed block 31, and a connecting rod mechanism 5 is installed at both ends of the movable clamping block 32 for controlling the movement of the movable clamping block 32, and the connecting rod mechanism 5 is provided with two groups, the The connecting rod mechanism 5 is symmetrically distributed around the central axis of the fixed block 31. A transmission frame 37 is installed on the connecting rod mechanism 5. The transmission frame 37 is driven by a motor. Several groups of first clamps 38 are rotatably installed in the movable clamping block 32, and several groups of first clamps 38 are rotatably installed in the fixed block 31. The first clamps 38 are semicircular in shape. Two groups of second clamps 39 are rotatably installed at both ends of the first clamps 38. The second clamps 39 are semicircular in shape and have arc-shaped protrusions at both ends (not marked in the figure);

[0023] When the movable clamping block 32 moves along the linear motion of the positioning shaft 33, the center of the movable clamping block 32 does not move, and the movable clamping block 32 moves closer to the fixed block 31.

[0024] The connecting rod mechanism 5 includes a connecting crank 51, the front end of which is rotatably connected to the movable clamping block 32, a connecting frame 53 is rotatably mounted on the rear end of the connecting crank 51, the other end of the connecting frame 53 is rotatably connected to the transmission frame 37, a limiting rod 52 is mounted on the middle end of the connecting frame 53, the other end of the limiting rod 52 is rotatably connected to the fixed block 31, the two groups of the connecting rod mechanism 5 are rotatably connected, and the connecting frame 53 is rotatably connected to the transmission frame 37;

[0025] For the sake of convenience, the end of the connecting frame 53 close to the transmission frame 37 is called the inner end, and the end of the connecting frame 53 connected to the connecting crank 51 is called the outer end;

[0026] When the movable clamp block 32 is driven by the cylinder, the cylinder pushes the transmission frame 37 to move the inner end of the connecting frame 53 inward, and at the same time drives the end of the limiting rod 52 connected to the connecting frame 53 and connected to the connecting frame 53 to move inward, so that the connecting frame 53 as a whole moves inward, pulls the connecting crank 51 inward, and at the same time the outer end of the connecting frame 53 moves outward by one end, pulls the connecting crank 51 backward, and causes the movable clamp block 32 to move toward the fixed block 31 in a straight line along the direction limited by the limiting rod 52.

[0027] To sum up, the transmission frame 37 is driven by the cylinder to drive the connecting rod mechanism 5 to push or pull the movable clamp 32. When the center is fixed, the movement direction of the movable clamp 32 is limited by the limiting rod 52 to only make linear motion close to or away from the fixed block 31, thereby realizing the positioning function of the special-shaped end cover parts. After the arc-shaped protrusions set at both ends of the second clamp 39 contact the surface of the special-shaped end cover, it will perform adaptive rotation. At the same time, the first clamp 38 will also perform adaptive rotation. Several groups of first clamps 38 and second clamps 39 installed on the movable clamp 32 and the fixed block 31 are adjusted at the same time to directly clamp the special-shaped end cover, thereby realizing the clamping function of the special-shaped end cover parts.

[0028] The above description is merely a preferred embodiment of the present application. The scope of protection of the present application is not limited to the above embodiment. All technical solutions based on this concept fall within the scope of protection of the present application. It should be noted that for those skilled in the art, improvements and modifications that do not depart from the principles of the present application should also be considered within the scope of protection of the present application.

Claims

1. An adaptive clamp for a servo press, comprising a body (1), characterized in that: A servo lifting mechanism (4) is installed on the machine body (1), a receiving plate (41) is provided on the servo lifting mechanism (4), a clamp assembly (3) is installed on the receiving plate (41), and a working mechanism (2) is provided on the machine body (1); The working mechanism (2) includes a pressing head for performing the main processing operation on the workpiece; The clamp assembly (3) includes a fixed block (31), the fixed block (31) is fixedly connected to the receiving plate (41), a movable clamping block (32) is installed at the front end of the fixed block (31), and connecting rod mechanisms (5) are installed at both ends of the movable clamping block (32) for controlling the movement of the movable clamping block (32), a plurality of first clamping heads (38) are rotatably installed in the movable clamping block (32), a plurality of first clamping heads (38) are rotatably installed in the fixed block (31), and a plurality of second clamping heads (39) are rotatably installed at both ends of the first clamping head (38); The connecting rod mechanism (5) comprises a connecting crank (51), the front end of the connecting crank (51) is rotatably connected to the movable clamping block (32), a connecting frame (53) is rotatably mounted on the rear end of the connecting crank (51), the other end of the connecting frame (53) is rotatably connected to the transmission frame (37), and a limiting rod (52) is mounted on the middle end of the connecting frame (53).

2. The adaptive clamp for a servo press according to claim 1, characterized in that: The clamp assembly (3) is located directly below the center axis of the pressure head.

3. The adaptive clamp for a servo press according to claim 1, characterized in that: The movable clamping block (32) is in the shape of a semicircular ring. Positioning shafts (33) are rotatably mounted on both ends of the movable clamping block (32), and the positioning shafts (33) are slidably mounted on both ends of the fixed block (31).

4. The adaptive clamp for a servo press according to claim 1, characterized in that: The connecting rod mechanism (5) is provided with two groups. The connecting rod mechanism (5) is symmetrically distributed with respect to the central axis of the fixed block (31). A transmission frame (37) is installed on the connecting rod mechanism (5). The driving mode of the transmission frame (37) is motor-driven.

5. The adaptive clamp for a servo press according to claim 1, characterized in that: The fixing block (31) is in the shape of a semicircular ring, the first clamp (38) is in the shape of a semicircle, and the second clamp (39) is in the shape of a semicircle with arc-shaped protrusions provided at both ends.

6. The adaptive clamp for a servo press according to claim 1, characterized in that: The other end of the limiting rod (52) is rotationally connected to the fixed block (31), the two groups of the connecting rod mechanism (5) are rotationally connected, and the connecting frame (53) is rotationally connected to the transmission frame (37).

7. The adaptive clamp for a servo press according to claim 1, characterized in that: The receiving plate (41) is provided with an empty slot, which is communicated with the clamping opening of the clamp assembly (3).

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