A line changing device for a press

Abstract

The utility model discloses a kind of line changing devices for punch press platform, belong to stamping technical field.A kind of line changing devices for punch press platform, including punch press platform, lower mould, the blanking hole for storing stamping part is provided in lower mould;The punch press platform is provided with pressure head, the punch tray for installing pressure head, the mounting plate cooperation with punch tray, the clamping seat is provided at the mounting plate, clamping seat includes vertical distribution's vertical board, transverse block of lateral distribution;The first recess of vertical board plug-in cooperation is provided in the mounting plate, the second recess of transverse block cooperation is provided in punch tray, the depth of second recess is greater than the depth of first recess.The utility model provides a kind of line changing devices for punch press platform, compared with traditional bolt connection, the operation of screwing bolt is changed to push-pull clamping block, the replacement speed of pressure head can be improved, reduce the time required for replacing production line.

Description

Technical Field

[0001] This utility model belongs to the field of stamping technology, specifically relating to a line changing device for a stamping machine. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube and profile materials, causing them to undergo plastic deformation or separation, thereby obtaining workpieces (stamped parts) of the required shape and size.

[0003] In actual production, factories need to produce stamped parts of various shapes. Different stamped parts require different press heads. Therefore, when changing to a new product line, the press heads on the product line need to be replaced accordingly. However, most existing press head replacements are achieved by tightening and loosening bolts, which takes a long time. Therefore, this application proposes a line-changing device for a stamping machine. Utility Model Content

[0004] The purpose of this utility model is to provide a line-changing device for a stamping machine, so as to solve the problem mentioned in the background art that the replacement of the existing press head is mostly achieved by tightening and loosening bolts, which takes a long time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a line changing device for a stamping machine, comprising a stamping machine and a lower die, wherein the lower die is provided with a blanking hole for storing stamped parts;

[0006] The press machine is provided with a press head, a press tray for mounting the press head, and a mounting plate that cooperates with the press tray. The mounting plate is provided with a clamping seat, which includes vertically distributed vertical plates and horizontally distributed horizontal blocks.

[0007] The mounting plate has a first groove that engages with the vertical plate, and the stamping tray has a second groove that engages with the horizontal block. The depth of the second groove is greater than the depth of the first groove. The horizontal block has a sliding clamping block, and the upper end face of the clamping block is in contact with the lower end face of the stamping tray.

[0008] The press platform is equipped with a lifting rod connected to the mounting plate and a lifting unit connected to the lifting rod.

[0009] Preferably, the press platform is provided with a bracket, the lower die and the bracket can slide relative to each other vertically, and the lower die is provided with a lifting block and a track that slides with the lifting block and is installed on the press platform.

[0010] Preferably, the lifting block is provided with a positioning bolt and a horizontal plate that rotates with the positioning bolt. The lifting block is provided with a threaded hole that mates with the positioning bolt, and a positioning rod is inserted through the horizontal plate.

[0011] Preferably, the track is provided with vertically distributed positioning plates, and the positioning plates are provided with a number of spaced positioning holes that cooperate with the positioning rods.

[0012] Preferably, a pressing spring is provided at the clamping block.

[0013] Preferably, the vertical plate and the mounting plate are fixedly connected by a pin.

[0014] Preferably, a connecting frame is provided between the lifting rod and the lifting unit.

[0015] Preferably, the connecting frame includes two parallel connecting plates and a plug inserted into the two connecting plates.

[0016] Preferably, a pressure sleeve is provided at the lifting rod, and a positioning sleeve for guiding the lifting rod is provided on the stamping machine platform.

[0017] Preferably, an anti-collision spring is provided between the positioning sleeve and the pressure sleeve.

[0018] Beneficial effects:

[0019] This utility model provides a line-changing device for a stamping machine. The pressing spring can provide a force to move the clamping block towards the center line of the stamping tray. After the stamping tray and the clamping block are inserted and the stamping tray is pressed against the mounting plate, the clamping block will move under the elastic force of the pressing spring and press against the lower end face of the stamping tray. In this way, the stamping tray and the press head on it are fixed. When replacing a new stamping part and a new press head, the new press head, stamping tray and mounting plate can be connected. Compared with the traditional bolt connection, the operation of tightening the bolt is replaced by pushing and pulling the clamping block, which can improve the replacement speed of the press head and reduce the time required for changing production lines. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the line changing device for the stamping machine in this utility model;

[0021] Figure 2 This is a bottom view of the line-changing device for the stamping machine in this utility model;

[0022] Figure 3 In this utility model Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the internal structure of the line changing device for the stamping machine in this utility model;

[0024] Figure 5 This utility model Figure 4 A magnified structural diagram at point B in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Stamping machine base; 2. Lower die; 3. Material discharge hole; 4. Bracket; 5. Lifting block; 6. Positioning bolt; 7. Positioning plate; 8. Press head; 9. Stamping tray; 10. Mounting plate; 11. Clamping seat; 12. Clamping block; 13. Pressing spring; 14. Lifting rod; 15. Lifting unit; 16. Connecting frame; 17. Pressure sleeve; 18. Anti-collision spring. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figures 1-5 As shown in the figure, the present invention provides a line-changing device for a stamping machine, including a stamping machine 1 and a lower die 2. The lower die 2 is provided with a blanking hole 3 for storing stamped parts. In order to adjust the height of the lower die 2 and thereby change the stroke of the press head 8, a bracket 4 is provided on the stamping machine 1. The lower die 2 and the bracket 4 can slide up and down relative to each other. A lifting block 5 and a track that slides with the lifting block 5 and is installed on the stamping machine 1 are provided at the lower die 2. A positioning bolt 6 and a horizontal plate that rotates with the positioning bolt 6 are provided at the lifting block 5. The positioning bolt 6 has a smooth outer wall at the position corresponding to the horizontal plate. The two can rotate relative to each other. A threaded hole that mates with the positioning bolt 6 is provided in the lifting block 5. A positioning rod is inserted through the horizontal plate. Vertically distributed positioning plates 7 are provided on the track. Several positioning holes that are spaced apart and mate with the positioning rod are provided on the positioning plates 7.

[0029] Rotating the positioning bolt 6 presses the horizontal plate, allowing it to fit against the track. The positioning rod on the horizontal plate is inserted into the corresponding positioning hole, locking the relative position between the lifting block 5 and the track. Rotating the positioning bolt 6 in the opposite direction releases the pressure on the horizontal plate, pulls the horizontal plate, and removes the positioning rod from the positioning hole, thus separating the lifting block 5 from the track. This allows the lifting block 5 to move along the track, adjusting the height of the lifting block 5 and the lower mold 2. Adjusting the height of the lower mold 2 according to the actual situation reduces the stroke requirements of the pressure head 8.

[0030] To stamp the raw materials, a press head 8, a stamping tray 9 for mounting the press head 8, and a mounting plate 10 that mates with the stamping tray 9 are provided at the press machine 1. The mounting plate 10 is provided with an L-shaped clamping seat 11, which includes vertically distributed vertical plates and horizontally distributed horizontal blocks. The vertical plates and horizontal blocks are integrally manufactured. The mounting plate 10 has a first groove that mates with the vertical plates, and the vertical plates and the mounting plate 10 are fixedly connected by pins. The stamping tray 9 has a second groove that mates with the horizontal blocks. The depth of the second groove is greater than the depth of the first groove. The horizontal blocks have a slidingly fitted clamping block 12. The upper end face of the clamping block 12 is in contact with the lower end face of the stamping tray 9, and the two can slide together.

[0031] It should be noted that a pressing spring 13 is provided at the clamping block 12. The pressing spring 13 can provide a force to move the clamping block 12 toward the center line of the stamping tray 9. After the stamping tray 9 and the clamping block 12 are inserted and the stamping tray 9 is pressed against the mounting plate 10, the clamping block 12 will move under the elastic force of the pressing spring 13 and press against the lower end face of the stamping tray 9. In this way, the stamping tray 9 and the press head 8 on it are fixed. When replacing a new stamping part and a new press head 8, the new press head 8, the stamping tray 9 and the mounting plate 10 can be connected. This can speed up the replacement speed of the press head 8 and reduce the time required to change the production line (i.e., to change the stamping part products produced).

[0032] Specifically, the stamping machine base 1 is equipped with a lifting rod 14 connected to the mounting plate 10 and a lifting unit 15 connected to the lifting rod 14. The lifting unit 15 can be an electric telescopic rod. It is used to drive the lifting rod 14 to move up and down. During the movement of the lifting rod 14, it can drive the press head 8 to move and stamp the raw material. The raw material after stamping is divided into two parts: waste and stamped parts.

[0033] More specifically, a connecting frame 16 is provided between the lifting rod 14 and the lifting unit 15. The connecting frame 16 includes two parallel connecting plates and a rod inserted into the two connecting plates. A pressure sleeve 17 is provided at the lifting rod 14. A positioning sleeve for guiding the lifting rod 14 is provided on the stamping machine base 1. An anti-collision spring 18 is provided between the positioning sleeve and the pressure sleeve 17. The anti-collision spring 18 and other components can provide buffer for the movement of the lifting rod 14 and prevent the lifting rod 14 and other components from directly colliding with the lower die 2.

[0034] In summary, this utility model embodiment provides a line-changing device for a stamping machine. The pressing spring 13 can provide a force to move the clamping block 12 toward the center line of the stamping tray 9. After the stamping tray 9 and the clamping block 12 are inserted and the stamping tray 9 abuts against the mounting plate 10, the clamping block 12 will move under the elastic force of the pressing spring 13 and abut against the lower end face of the stamping tray 9. In this way, the stamping tray 9 and the press head 8 on it are fixed. When replacing a new stamping part and a new press head 8, the new press head 8, the stamping tray 9 and the mounting plate 10 can be connected. This can speed up the replacement speed of the press head 8 and reduce the time required to change production lines.

[0035] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A line-changing device for a stamping machine, comprising a stamping machine (1) and a lower die (2), characterized in that, The lower die (2) is provided with a blanking hole (3) for storing stamped parts; The press machine base (1) is provided with a press head (8), a press tray (9) for mounting the press head (8), and a mounting plate (10) that cooperates with the press tray (9). The mounting plate (10) is provided with a clamping seat (11), which includes vertically distributed vertical plates and horizontally distributed horizontal blocks. The mounting plate (10) is provided with a first groove that is inserted into the vertical plate, and the stamping tray (9) is provided with a second groove that is engaged with the horizontal block. The depth of the second groove is greater than the depth of the first groove. The horizontal block is provided with a sliding clamping block (12), and the upper end face of the clamping block (12) is in contact with the lower end face of the stamping tray (9). The stamping machine base (1) is provided with a lifting rod (14) connected to the mounting plate (10) and a lifting unit (15) connected to the lifting rod (14).

2. The line-changing device for a stamping machine as described in claim 1, characterized in that, The press machine platform (1) is provided with a bracket (4), and the lower die (2) and the bracket (4) can slide relative to each other up and down. The lower die (2) is provided with a lifting block (5) and a track that slides with the lifting block (5) and is installed on the press machine platform (1).

3. The line-changing device for a stamping machine as described in claim 2, characterized in that, The lifting block (5) is provided with a positioning bolt (6) and a horizontal plate that rotates with the positioning bolt (6). The lifting block (5) is provided with a threaded hole that mates with the positioning bolt (6), and a positioning rod is inserted through the horizontal plate.

4. The line-changing device for a stamping machine as described in claim 3, characterized in that, The track is provided with vertically distributed positioning plates (7), and the positioning plates (7) are provided with a number of spaced positioning holes that cooperate with the positioning rods.

5. The line-changing device for a stamping machine as described in claim 1, characterized in that, A pressing spring (13) is provided at the clamping block (12).

6. The line-changing device for a stamping machine as described in claim 5, characterized in that, The vertical plate and the mounting plate (10) are fixedly connected by pins.

7. The line-changing device for a stamping machine as described in claim 1, characterized in that, A connecting frame (16) is provided between the lifting rod (14) and the lifting unit (15).

8. A line-changing device for a stamping machine as described in claim 7, characterized in that, The connecting frame (16) includes two parallel connecting plates and insert rods inserted into the two connecting plates.

9. A line-changing device for a stamping machine as described in claim 8, characterized in that, A pressure sleeve (17) is provided at the lifting rod (14), and a positioning sleeve for guiding the lifting rod (14) is provided on the stamping machine platform (1).

10. A line-changing device for a stamping machine as described in claim 9, characterized in that, An anti-collision spring (18) is provided between the positioning sleeve and the pressure sleeve (17).

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