Adjustable convex clamping jig for upper die of bending machine

Abstract

The utility model relates to a kind of adjustable protruding clamps of upper die for bending machine, including wedge and connecting frame, connecting frame upper end is connected with bending machine slider through a baffle A, baffle A is equipped with bolt connected with bending machine slider, the inclined surface that is equipped with with wedge cooperation in the middle part of connecting frame, the upper surface of wedge and the bottom surface of slider abut, the lower surface of wedge is the inclined surface with the cooperation of connecting frame, connecting frame is equipped with pull wire and top silk connected with wedge, pull wire and top silk are used for adjusting the position of wedge, the lower end of connecting frame is equipped with the mounting groove for installing upper die;The utility model realizes the height local compensation adjustment function of upper die mounting surface, improves the bending precision of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically an adjustable upper die with a convex clamp for a bending machine. Background Technology

[0002] Bending machines are common machine tools. During processing, the bending angle of the workpiece is closely related to the mounting surface of the upper die on the bending machine's slide. If the local load on the mounting surface of the upper die is too large, it will collapse the mounting surface, causing the bending angle of the workpiece to locally increase or decrease. In this case, local compensation is required. However, the existing upper die mounting structure of bending machines is as follows: Figure 3 As shown, the upper mold is fixedly connected to the slider by a pressure plate. This structure does not have a local compensation function. Summary of the Invention

[0003] The purpose of this utility model is to solve the problems existing in the prior art and provide an adjustable upper die with a convex clamp for a bending machine.

[0004] The specific solution of this utility model is as follows: an adjustable upper die with a convex clamp for a bending machine, including a wedge and a connecting frame. The upper end of the connecting frame is connected to the slider of the bending machine through a pressure plate A. The pressure plate A is equipped with bolts that are connected to the slider of the bending machine. The middle part of the connecting frame is provided with an inclined surface that cooperates with the wedge. The upper surface of the wedge abuts against the bottom surface of the slider, and the lower surface of the wedge is an inclined surface that cooperates with the connecting frame. The connecting frame is equipped with a pull wire and a top wire that are connected to the wedge. The pull wire and the top wire are used to adjust the position of the wedge. The lower end of the connecting frame is provided with an installation groove for installing the upper die.

[0005] Furthermore, a pressure plate B is installed at the lower end of the connecting frame, and bolts connected to the connecting frame are installed on the pressure plate B. The pressure plate B and the connecting frame cooperate to fix the upper mold.

[0006] Furthermore, both ends of the wedge are provided with scale lines, which are used to indicate the vertical distance from the bottom surface of the slider to the bottom surface of the connecting frame.

[0007] Furthermore, each end of the wedge is equipped with a pull wire and a top wire.

[0008] Furthermore, the bottom surface of the slider, the upper surface and inclined surface of the wedge, and the inclined surface of the connecting frame are all provided with a wear-resistant coating.

[0009] This utility model has the following beneficial effects: by setting wedges and connecting frames, the local compensation adjustment function of the upper mold mounting surface height is realized, thereby improving the bending accuracy of the workpiece. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 yes Figure 1 The left view;

[0012] Figure 3 This is a schematic diagram of the installation structure of the upper mold in the prior art;

[0013] In the diagram: 1. Bending machine slider; 2. Pressure plate A; 3. Bolt; 4. Wedge block; 5. Wire drawing; 6. Connecting frame; 7. Pressure plate B; 8. Bolt; 9. Upper die; 10. Ejector screw. Detailed Implementation

[0014] See Figure 1-2 This embodiment is an adjustable upper die 9 with a convex clamp for a bending machine, including a wedge block 4 and a connecting frame 6. The upper end of the connecting frame 6 is connected to the bending machine slider 1 through a pressure plate A2. The pressure plate A2 is equipped with bolts 3 that are connected to the bending machine slider 1. The middle part of the connecting frame 6 is provided with an inclined surface that cooperates with the wedge block 4. The upper surface of the wedge block 4 abuts against the bottom surface of the slider, and the lower surface of the wedge block 4 is an inclined surface that cooperates with the connecting frame 6. The connecting frame 6 is equipped with a draw wire 5 and a top wire 10 that are connected to the wedge block 4. The draw wire 5 and the top wire 10 are used to adjust the position of the wedge block 4. The lower end of the connecting frame 6 is provided with a mounting groove for installing the upper die 9.

[0015] Furthermore, a pressure plate B7 is installed at the lower end of the connecting frame 6, and a bolt 8 connected to the connecting frame 6 is installed on the pressure plate B7. The pressure plate B7 and the connecting frame 6 cooperate to fix the upper mold 9.

[0016] Furthermore, both ends of the wedge 4 are provided with scale lines, which are used to indicate the vertical distance from the bottom surface of the slider to the bottom surface of the connecting frame 6.

[0017] Furthermore, each end of the wedge 4 is equipped with a drawing wire 5 and a top wire 10.

[0018] Furthermore, the bottom surface of the slider, the upper surface and inclined surface of the wedge 4, and the inclined surface of the connecting frame 6 are all provided with a wear-resistant coating. In this embodiment, the wedge 4 is made of 42CrMo, which has undergone quenching and tempering treatment to improve its hardness.

[0019] The working principle of this utility model is as follows: When the mounting surface of the upper mold 9 needs to be adjusted downward, first loosen the bolt 3, and then adjust the top screw 10 and pull screw 5 at both ends to make the wedge block 4 move slightly backward. Adjust accordingly according to the scale line corresponding to the height difference to be compensated. The relationship between the horizontal movement distance of the wedge block 4 and the height movement distance of the upper mold 9 is positively correlated with the angle of the inclined plane. That is, the larger the angle, the greater the influence of the horizontal adjustment distance of the wedge block 4 on the installation height compensation value of the upper mold 9. When both ends of the wedge block 4 are adjusted to the corresponding scale, the connecting frame 6 descends to the predetermined height position. At this time, tightening the bolt 8 again completes the compensation adjustment operation.

[0020] If the mounting surface of the upper die 9 needs to be adjusted upwards, first loosen bolt 3, then adjust wedge 4 forward. Adjust wedge 4 to the corresponding scale position according to the required compensation height value. At this time, the connecting frame 6 and the upper die 9 will first drop a certain height due to gravity. Then, control the bending machine slider 1 to move downwards under no-load conditions, so that the upper die 9 and the lower die are closed. At this time, the upper end of the upper die 9 pushes the connecting frame 6 upwards, so that the connecting frame 6 and the wedge 4 are in close contact. Finally, tighten bolt 8 to fix the connecting frame 6 at this height position, and then control the bending machine slider 1 to move upwards. At this time, the compensation adjustment operation has been completed, and the bending operation can be carried out normally afterwards.

Claims

1. An adjustable upper die with a convex clamp for a bending machine, characterized in that: The device includes a wedge and a connecting frame. The upper end of the connecting frame is connected to the bending machine slider via a pressure plate A. The pressure plate A is equipped with bolts that connect to the bending machine slider. The middle part of the connecting frame has an inclined surface that mates with the wedge. The upper surface of the wedge abuts against the bottom surface of the slider, and the lower surface of the wedge is an inclined surface that mates with the connecting frame. The connecting frame is equipped with a pull wire and a set wire that connect to the wedge. The pull wire and set wire are used to adjust the position of the wedge. The lower end of the connecting frame has an installation groove for installing the upper die.

2. The adjustable upper die with convex clamp for a bending machine according to claim 1, characterized in that: The lower end of the connecting frame is equipped with a pressure plate B, and the pressure plate B is equipped with bolts that connect to the connecting frame. The pressure plate B and the connecting frame cooperate to fix the upper mold.

3. The adjustable upper die with convex clamp for a bending machine according to claim 1, characterized in that: Both ends of the wedge are provided with scale lines, which are used to indicate the vertical distance from the bottom surface of the slider to the bottom surface of the connecting frame.

4. The adjustable upper die with convex clamp for a bending machine according to claim 1, characterized in that: Both ends of the wedge are equipped with a pull wire and a top wire.

5. The adjustable upper die with convex clamp for a bending machine according to claim 1, characterized in that: The bottom surface of the slider, the upper surface and inclined surface of the wedge, and the inclined surface of the connecting frame are all provided with wear-resistant coatings.

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