Positioning mechanism of die for bending and stamping workpiece

Abstract

The utility model relates to the related technical field of digestive endoscopy supports, in particular to a positioning mechanism of a die for bending and stamping a workpiece, which comprises an upper die holder, a concave die plate is fixedly connected to the surface of one end of an inner guide pillar, a lower die holder is fixedly connected to the lower surface of the concave die plate, a positioning mechanism is arranged on the surface of one side of the lower die holder, and the lower die holder is fixedly connected to the lower surface of the concave die plate. A protection mechanism is arranged on the surface of one side of the upper die base. According to the positioning mechanism of the die for bending and stamping the workpiece, through the arrangement of the positioning plate, the feeding port, the clamping plate, a second spring, a fixing plate, a connecting rod, a handle, a threaded rod, a nut, a fixing column, a rotating shaft and a positioning block, the nut rotates on the surface of the outer side of the threaded rod, so that the position of the fixing column is adjusted; and the positioning block at one end of the fixing column is attached to the surface of one side of the material, so that the position of the positioning block is fixed, the material is prevented from deviating during bending and punching, and the bending and punching precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to stamping dies, and in particular to a positioning mechanism for a stamping die used for bending a workpiece. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method in which a die installed on a press is used to apply pressure to the material at room temperature to separate or plastically deform the material, thereby obtaining the desired parts. Different stamping dies have different dies. A bending die is a die that bends a blank or semi-finished product into a certain shape. The structure of a bending die is similar to that of a general blanking die. It is divided into two parts, upper and lower. It consists of a convex and concave die, positioning, unloading, guiding and fasteners, etc. However, a bending die also has its own characteristics. For example, in addition to general actions, the convex and concave dies sometimes need to swing, rotate and other actions. The structural form of the bending die should be selected according to the shape of the bent part, precision requirements and production batch, etc. Most of the current stamping dies do not have a stable and effective positioning effect. Therefore, a positioning mechanism for a stamping die that bends the workpiece is particularly needed.

[0003] Because the positioning mechanism of the existing bending stamping die usually includes fixed positioning elements such as positioning pins and positioning blocks. However, these fixed positioning elements are often difficult to provide sufficient positioning accuracy and stability for workpieces with complex shapes or large sizes, resulting in the workpiece being offset or deformed during the stamping process, affecting product quality and production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning mechanism for a bending stamping die for a workpiece, so as to solve the problem of the existing bending stamping die proposed in the above-mentioned background technology. The positioning mechanism of the stamping die usually includes fixed positioning elements such as positioning pins and positioning blocks. However, these fixed positioning elements are often difficult to provide sufficient positioning accuracy and stability for workpieces with complex shapes or large sizes, resulting in displacement or deformation of the workpiece during the stamping process, affecting product quality and production efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning mechanism for a stamping die for bending a workpiece, comprising an upper die seat, a convex die plate fixedly connected to the lower surface of the upper die seat, an inner guide column fixedly connected to the lower surface of the convex die plate, a first buffer pad fixedly sleeved on the outer surface of the inner guide column, a concave die plate fixedly connected to one end surface of the inner guide column, a guide sleeve fixedly connected to the lower surface of the upper die seat, a second buffer pad fixedly connected to the inner surface of the guide sleeve, an outer guide column fixedly sleeved on the inner surface of the second buffer pad, a first spring fixedly connected to the outer surface of the outer guide column, a lower die seat fixedly connected to the lower surface of the concave die plate, a positioning mechanism provided on one side surface of the lower die seat, and a protective mechanism provided on one side surface of the upper die seat;

[0006] The positioning mechanism includes a positioning plate, a feed port, a clamping plate, a second spring, a fixing plate, a connecting rod, a handle, a threaded rod, a nut, a fixing column, a rotating shaft and a positioning block. One side surface of the lower mold base is fixedly connected to the positioning plate, and one side surface of the positioning plate is provided with a feed port. The inner surface of the positioning plate is fixedly connected to the clamping plate, one side surface of the clamping plate is fixedly connected to the second spring, the outer surface of the second spring is fixedly connected to the fixing plate, the inner surface of the fixing plate is penetrated by a connecting rod, one end surface of the connecting rod is fixedly connected to a handle, one side surface of the concave mold plate is fixedly connected to the threaded rod, the outer surface of the threaded rod is threadedly connected to the nut, one side surface of the nut is fixedly connected to the fixing column, the inner surface of the fixing column is rotatably connected to the rotating shaft, and the outer surface of the rotating shaft is fixedly connected to the positioning block.

[0007] Preferably, the protection mechanism includes a controller, a sensor, a main board, an infrared detector and a push switch, the upper surface of the upper mold base is fixedly connected to the controller, the outer surface of the controller is fixedly installed with a sensor, the inside of the controller is provided with a main board, the lower surface of the upper mold base is fixedly installed with an infrared detector, and the side surface of the lower mold base is fixedly installed with a push switch.

[0008] Preferably, the inner guide pillars are symmetrically arranged with respect to the central axis of the male template, and the outer wall size of the male template matches the outer wall size of the female template.

[0009] Preferably, the outer wall size of the inner guide pillar matches the inner wall size of the first buffer pad, and the positions of the inner guide pillar and the first buffer pad correspond one to one.

[0010] Preferably, the outer guide pillars are symmetrically arranged about the central axis of the lower mold base, and the outer wall dimensions of the outer guide pillars match the inner wall dimensions of the second buffer pad.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the positioning mechanism of the bending and stamping die for the workpiece is provided with a positioning plate, a feed port, a clamping plate, a second spring, a fixed plate, a connecting rod, a handle, a threaded rod, a nut, a fixed column, a rotating shaft and a positioning block. When performing bending and stamping, the material is first stuffed into the feed port opened on one side of the positioning plate, and then the handle is pulled up to make the connecting rod drive the clamping plate to move. At this time, the clamping plate will compress the second spring, and then the material will be placed between the clamping plate and the positioning plate, and then the handle is released. Under the elastic force of the second spring, the clamping plate will clamp the material tightly, and the nut will rotate on the outer surface of the threaded rod, thereby adjusting the position of the fixed column, so that the positioning block at one end of the fixed column is in contact with one side surface of the material, so that the position of the positioning block is fixed, thereby preventing the material from shifting during bending and stamping, and improving the accuracy of bending and stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the positioning mechanism structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the infrared detector and the push switch used in conjunction with each other in the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the controller and the mainboard used in conjunction with each other in the utility model;

[0016] Figure 5 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0017] In the figure: 1. upper die base; 2. convex die plate; 3. inner guide pin; 4. first buffer pad; 5. concave die plate; 6. guide sleeve; 7. second buffer pad; 8. outer guide pin; 9. first spring; 10. lower die base; 11. positioning mechanism; 1101. positioning plate; 1102. feeding port; 1103. clamping plate; 1104. second spring; 1105. fixing plate; 1106. connecting rod; 1107. handle; 1108. threaded rod; 1109. nut; 1110. fixing pin; 1111. rotating shaft; 1112. positioning block; 12. protection mechanism; 1201. controller; 1202. sensor; 1203. main board; 1204. infrared detector; 1205. push switch. DETAILED DESCRIPTION

[0018] 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 in 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.

[0019] See also Figure 1-5 The utility model provides a technical solution: a positioning mechanism for a workpiece bending stamping die, comprising an upper die seat 1, a convex die plate 2 is fixedly connected to the lower surface of the upper die seat 1, an inner guide column 3 is fixedly connected to the lower surface of the convex die plate 2, a first buffer pad 4 is sleeved and fixedly arranged on the outer surface of the inner guide column 3, a concave die plate 5 is fixedly connected to one end surface of the inner guide column 3, a guide sleeve 6 is fixedly connected to the lower surface of the upper die seat 1, a second buffer pad 7 is fixedly connected to the inner surface of the guide sleeve 6, an outer guide column 8 is sleeved and fixedly arranged on the inner surface of the second buffer pad 7, a first spring 9 is fixedly connected to the outer surface of the outer guide column 8, a lower die seat 10 is fixedly connected to the lower surface of the concave die plate 5, a positioning mechanism 11 is arranged on one side surface of the lower die seat 10, and a protective mechanism 12 is arranged on one side surface of the upper die seat 1;

[0020] The positioning mechanism 11 includes a positioning plate 1101, a feed port 1102, a clamping plate 1103, a second spring 1104, a fixing plate 1105, a connecting rod 1106, a handle 1107, a threaded rod 1108, a nut 1109, a fixing column 1110, a rotating shaft 1111 and a positioning block 1112. The positioning plate 1101 is fixedly connected to one side surface of the lower die base 10. The feed port 1102 is provided on one side surface of the positioning plate 1101. The clamping plate 1103 is fixedly connected to the inner side surface of the positioning plate 1101. The clamping plate 1103 is fixedly connected to one side surface of the clamping plate 1103. A second spring 1104 is provided, the outer surface of the second spring 1104 is fixedly connected to a fixing plate 1105, the inner surface of the fixing plate 1105 is penetrated and connected to a connecting rod 1106, one end surface of the connecting rod 1106 is fixedly connected to a handle 1107, a side surface of the concave template 5 is fixedly connected to a threaded rod 1108, the outer surface of the threaded rod 1108 is threadedly connected to a nut 1109, one side surface of the nut 1109 is fixedly connected to a fixing column 1110, the inner surface of the fixing column 1110 is rotatably connected to a rotating shaft 1111, and the outer surface of the rotating shaft 1111 is fixedly connected to a threaded rod 1108. The surface is fixedly connected with a positioning block 1112. Through the arrangement of the positioning plate 1101, the feeding port 1102, the clamping plate 1103, the second spring 1104, the fixing plate 1105, the connecting rod 1106, the handle 1107, the threaded rod 1108, the nut 1109, the fixing column 1110, the rotating shaft 1111 and the positioning block 1112, when performing bending and stamping, the material is first stuffed into the feeding port 1102 opened on one side of the positioning plate 1101, and then the handle 1107 is pulled up to make the connecting rod 1106 drive the clamping plate 1103 to move. At this time, the clamping plate 110 3 will compress the second spring 1104, and then place the material between the clamping plate 1103 and the positioning plate 1101, and then release the handle 1107. Under the elastic force of the second spring 1104, the clamping plate 1103 will clamp the material tightly, and the nut 1109 will rotate on the outer surface of the threaded rod 1108, so as to adjust the position of the fixing column 1110, so that the positioning block 1112 at one end of the fixing column 1110 fits with one side surface of the material, so that the position of the positioning block 1112 is fixed, so as to prevent the material from shifting during bending and stamping, and improve the accuracy of bending and stamping.

[0021] Furthermore, the protection mechanism 12 includes a controller 1201, a sensor 1202, a main board 1203, an infrared detector 1204 and a push switch 1205. The upper surface of the upper die base 1 is fixedly connected with the controller 1201, the outer surface of the controller 1201 is fixedly mounted with the sensor 1202, the inside of the controller 1201 is provided with a main board 1203, the lower surface of the upper die base 1 is fixedly mounted with the infrared detector 1204, and the side surface of the lower die base 10 is fixedly mounted with the push switch 1205. Through the arrangement of the controller 1201, the sensor 1202, the main board 1203, the infrared detector 1204 and the push switch 1205, when stamping, the outer surface is firstly turned on. When the infrared detector 1204 detects foreign matter, it will send a corresponding electrical signal to the controller 1201, which will be received by the sensor 1202. The sensor 1202 then converts the electrical signal into a processable digital signal, which is then transmitted to the controller 1201. Finally, the controller 1201 controls the emergency stop of the stamping machine through the mainboard 1203, which immediately cuts off the power supply and stops the operation of the equipment, thereby avoiding equipment damage and personal injury. When pressing the switch 1205 to start stamping, both hands are required to press the switch 1205 together to start the stamping die, thereby enhancing the protection capability.

[0022] Furthermore, the inner guide pillars 3 are symmetrically arranged with respect to the central axis of the male template 2, and the outer wall size of the male template 2 matches the outer wall size of the female template 5. By setting the inner guide pillars 3, it is ensured that the male template 2 and the female template 5 can be accurately aligned when the mold is closed. At the same time, the setting of the inner guide pillars 3 also increases the stability and rigidity of the mold, making the stamping process more stable and reliable.

[0023] Furthermore, the outer wall size of the inner guide pillar 3 matches the inner wall size of the first buffer pad 4, and the positions of the inner guide pillar 3 and the first buffer pad 4 correspond one to one. Through the setting of the first buffer pad 4, the impact and vibration of the mold during the stamping process can be effectively reduced, protecting the mold and the workpiece from damage, and also extending the service life of the mold.

[0024] Furthermore, the outer guide column 8 is symmetrically arranged below the central axis of the mold base 10, and the outer wall size of the outer guide column 8 matches the inner wall size of the second buffer pad 7. Through the setting of the second buffer pad 7, the impact and vibration of the mold during the stamping process can be further reduced, thereby improving the stability and reliability of the mold.

[0025] Working principle: When performing bending and stamping, first insert the material into the feed port 1102 opened on one side of the positioning plate 1101, then pull up the handle 1107, so that the connecting rod 1106 drives the clamping plate 1103 to move, and at this time the clamping plate 1103 will compress the second spring 1104, and then place the material between the clamping plate 1103 and the positioning plate 1101, and then release the handle 1107. Under the elastic force of the second spring 1104, the clamping plate 1103 clamps the material tightly, and the nut 1109 rotates on the outer surface of the threaded rod 1108, thereby adjusting the position of the fixed column 1110, so that the positioning block 1112 at one end of the fixed column 1110 fits with one side surface of the material, so that the position of the positioning block 1112 is fixed, so as to prevent the material from shifting during bending and stamping, and improve the accuracy of bending and stamping. Secondly, when stamping, first turn on the external power supply. At this time, the infrared detector 1204 will continue to focus the infrared light and convert it into an electrical signal. When the infrared detector 1204 detects a foreign object, it will send a corresponding electrical signal to the controller 1201. At this time, the electrical signal will be received by the sensor 1202, and then the sensor 1202 will convert the electrical signal into a processable digital signal, and then transmit it to the controller 1201. Finally, the controller 1201 controls the emergency stop of the stamping machine through the mainboard 1203, which will immediately cut off the power supply and stop the operation of the equipment, thereby avoiding equipment damage and personal injury. When pressing the switch 1205 to start the stamping, both hands are required to press the switch 1205 together to start the stamping die, which enhances the protection capability. The model of the infrared detector 905 is YB-Y88 infrared sensor.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism for a stamping die for bending a workpiece, comprising an upper die seat (1), characterized in that: The lower surface of the upper die base (1) is fixedly connected to a male die plate (2), the lower surface of the male die plate (2) is fixedly connected to an inner guide column (3), the outer surface of the inner guide column (3) is sleeved with a first buffer pad (4), one end surface of the inner guide column (3) is fixedly connected to a female die plate (5), the lower surface of the upper die base (1) is fixedly connected to a guide sleeve (6), the inner surface of the guide sleeve (6) is fixedly connected to a second buffer pad (7), the inner surface of the second buffer pad (7) is sleeved with an outer guide column (8), the outer surface of the outer guide column (8) is fixedly connected to a first spring (9), the lower surface of the female die plate (5) is fixedly connected to a lower die base (10), one side surface of the lower die base (10) is provided with a positioning mechanism (11), and one side surface of the upper die base (1) is provided with a protective mechanism (12); The positioning mechanism (11) comprises a positioning plate (1101), a material inlet (1102), a clamping plate (1103), a second spring (1104), a fixing plate (1105), a connecting rod (1106), a handle (1107), a threaded rod (1108), a nut (1109), a fixing column (1110), a rotating shaft (1111) and a positioning block (1112); a side surface of the lower die base (10) is fixedly connected to the positioning plate (1101); a side surface of the positioning plate (1101) is provided with a material inlet (1102); an inner side surface of the positioning plate (1101) is fixedly connected to the clamping plate (1103); a side surface of the clamping plate (1103) is fixedly connected to the second spring (1104); 104), the outer surface of the second spring (1104) is fixedly connected to a fixing plate (1105), the inner surface of the fixing plate (1105) is penetrated by a connecting rod (1106), one end surface of the connecting rod (1106) is fixedly connected to a handle (1107), one side surface of the concave template (5) is fixedly connected to a threaded rod (1108), the outer surface of the threaded rod (1108) is threadedly connected to a nut (1109), one side surface of the nut (1109) is fixedly connected to a fixing column (1110), the inner surface of the fixing column (1110) is rotatably connected to a rotating shaft (1111), and the outer surface of the rotating shaft (1111) is fixedly connected to a positioning block (1112).

2. A positioning mechanism for a workpiece bending stamping die according to claim 1, characterized in that: The protection mechanism (12) comprises a controller (1201), a sensor (1202), a main board (1203), an infrared detector (1204) and a push switch (1205); the upper surface of the upper die base (1) is fixedly connected to the controller (1201); the outer surface of the controller (1201) is fixedly mounted with the sensor (1202); the controller (1201) is provided with a main board (1203) inside; the lower surface of the upper die base (1) is fixedly mounted with the infrared detector (1204); and the push switch (1205) is fixedly mounted on one side surface of the lower die base (10).

3. A positioning mechanism for a workpiece bending stamping die according to claim 1, characterized in that: The inner guide pillar (3) is symmetrically arranged with respect to the central axis of the male mold plate (2), and the outer wall size of the male mold plate (2) matches the outer wall size of the female mold plate (5).

4. The positioning mechanism for a stamping die for bending a workpiece according to claim 1, characterized in that: The outer wall size of the inner guide pillar (3) matches the inner wall size of the first buffer pad (4), and the positions of the inner guide pillar (3) and the first buffer pad (4) correspond one to one.

5. The positioning mechanism for a workpiece bending stamping die according to claim 1, characterized in that: The outer guide pillar (8) is symmetrically arranged about the central axis of the lower mold base (10), and the outer wall size of the outer guide pillar (8) matches the inner wall size of the second buffer pad (7).

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