Die with product out-of-cavity positioning function

Abstract

A die with a product out-of-cavity positioning function comprises an upper die body and a lower die body, the upper die body comprises a punch, and a cavity used for containing a product is formed in the position, opposite to the punch, of the lower die body; a positioning assembly is arranged between the upper die and the lower die, and when the upper die and the lower die are in an open state, the positioning assembly is located on the side of the punch in the overlook projection direction; the positioning assembly comprises a transmission part and a positioning block connected to the transmission part, the side face, close to the cavity, of the positioning block is provided with a positioning face, and the transmission part is driven to drive the positioning block to move in the direction close to the cavity so that the positioning face can make contact with and position a product in the cavity. Compared with the prior art, the mold disclosed by the utility model has the advantages that a product out-of-cavity positioning function is realized through the positioning component, the positioning structure is simple, the cost is low, the use scene of the positioning structure is basically not limited by space and environment, and the application range is wide.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a mold with a product outer cavity positioning function. Background Art

[0002] During the cold forging, CNC machining or punching and trimming process, the product to be processed is placed in the mold cavity. In order to facilitate the placement of the product in the cavity and avoid the product from getting stuck in the cavity after processing, the size of the cavity is designed to be relatively large, and the product has a certain degree of mobility in the cavity before and after processing. However, due to the shape or structure of the product or raw material block, it is impossible to find suitable positioning features on the structure of the product or raw material block itself to fix its front, back, left and right positions, resulting in the inaccurate positioning of the processed or formed product, and the failure to meet the structural or precision requirements after forming.

[0003] The existing method to solve this problem is to use industrial robots, and at the same time cooperate with fixtures for fixing raw material blocks or products. The robot grabs the raw material blocks or products on the fixed fixture and puts them into the cold forging mold cavity or the CNC machining fixture to start the forming or processing process. However, the cost of using robots and other intelligent equipment is too high; in addition, when the manufacturing site is small or the environment is harsh, robots and other intelligent equipment cannot enter, and the applicability is poor; when the product or raw material block is small or has a special structure, the robot's gripper cannot accurately and reliably grab the product. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide a mold with a product outer cavity positioning function.

[0005] To achieve the above purpose, the utility model discloses a mold with a product cavity outer positioning function, comprising an upper mold and a lower mold, the upper mold includes a punch, and a cavity for placing the product is provided on the lower mold at a position opposite to the punch;

[0006] A positioning assembly is provided between the upper die and the lower die, and when the upper die and the lower die are in an open state, the positioning assembly is located beside the punch in the direction of the top projection;

[0007] The positioning assembly includes a transmission member and a positioning block connected to the transmission member. The positioning block is provided with a positioning surface on the side close to the cavity. The transmission member is driven to move the positioning block toward the cavity so that the positioning surface contacts and positions the product in the cavity.

[0008] Preferably, the cross-sectional shape of the positioning surface matches the shape of the product.

[0009] Further preferably, in the direction of top projection, the length of the positioning surface does not exceed half of the circumference of the product.

[0010] Preferably, the positioning block is detachably connected to the transmission member.

[0011] Further preferably, the positioning block is connected to the transmission member by screws.

[0012] Preferably, the positioning assembly further comprises a driving device for driving the transmission member to move.

[0013] Further preferably, the driving device is a cylinder, and the transmission member is a piston rod of the cylinder.

[0014] Further preferably, the driving device and the transmission member are arranged along the left-right direction.

[0015] Further preferably, the positioning assembly also includes a switch for controlling the movement of the transmission member.

[0016] Preferably, the positioning assembly is fixed to the top surface of the lower mold.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] A positioning assembly is arranged between the upper die and the lower die, and the positioning assembly includes a transmission member and a positioning block connected to the transmission member. Before processing the product, the transmission member drives the positioning block to move to a specified position, and the product is positioned by the positioning surface of the positioning block, thereby realizing the product extracavity positioning function. This positioning structure has a simple structure and low cost, and its use scenario is basically not limited by space and environment, and has a wide range of applications.

[0019] After the product positioning is completed, the transmission part drives the positioning block to move out of the position below the punch. During the punch processing, the positioning block will not interfere with the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the mold with the product cavity outer positioning function of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the middle mold in another state;

[0022] Upper die 1; punch 11;

[0023] Lower mold 2; cavity 21;

[0024] Positioning assembly 3; transmission member 31; positioning block 32; positioning surface 321; driving device 33; switch 34. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] A mold with a product cavity outer positioning function. In this embodiment, the mold can be a cold forging process, a CNC machining fixture, and a stamping, punching, and trimming mold, but is not limited to these molds in practice.

[0027] See also Figure 1-Figure 2 , including an upper die 1 and a lower die 2, the upper die 1 includes a punch 11, and a cavity 21 for placing a product is provided on the lower die 2 at a position opposite to the punch 11. During the processing, the upper die 1 is driven to move downward, thereby processing the product in the cavity 21. In this embodiment, it can be understood that the upper die 1 and the lower die 2 also include other structures, which are common structures in the mold field and are not described here.

[0028] A positioning assembly 3 is provided between the upper die 1 and the lower die 2. When the upper die 1 and the lower die 2 are in the open state, the positioning assembly 3 is located beside the punch 11 in the direction of the top projection. The positioning assembly 3 includes a transmission member 31 and a positioning block 32 connected to the transmission member 31. The positioning block 32 is provided with a positioning surface 321 on the side close to the cavity 21. The transmission member 31 is driven to drive the positioning block 32 to move toward the cavity 21 so that the positioning surface 321 contacts and positions the product in the cavity 21. When it is necessary to position the product, before processing the product, the transmission member 31 drives the positioning block 32 to move to the specified position, and then the product is placed in the cavity 21 and moved to contact the positioning surface 321. The product is positioned by the positioning surface 321 of the positioning block 32, thereby realizing the product cavity positioning function. This positioning structure is simple in structure and low in cost. Its use scenario is basically not limited by space and environment, and it has a wide range of applications. After the product positioning is completed, the transmission member 31 drives the positioning block 32 to move out of the position below the punch 11 , and the positioning block 32 will not interfere with the processing during the processing of the punch 11 .

[0029] In this embodiment, the cross-sectional shape of the positioning surface 321 matches, that is, is identical to, the shape of the product, which can improve the positioning accuracy of the product.

[0030] Furthermore, in the direction of top projection, the length of the positioning surface 321 does not exceed half of the circumference of the product. Specifically, in the present embodiment, the shape of the product is cylindrical, and the shape of the positioning surface 321 is arc-shaped but does not exceed a semicircle. With such a configuration, after the product is placed in the cavity 21, it can be directly moved to contact the positioning surface 321, thereby achieving product positioning, and avoiding the problem that the shape of the positioning surface 321 exceeds a semicircle, resulting in the product being unable to be directly moved to contact the positioning surface 321, and can only be inserted into the positioning surface 321 from top to bottom, complicating the product placement process.

[0031] In this embodiment, the positioning block 32 is detachably connected to the transmission member 31. In this way, when it is necessary to position products with different cross-sectional shapes, the positioning block 32 can be removed and replaced with a positioning block 32 of matching shape, thereby improving the applicability of the positioning assembly 3 and the mold.

[0032] Preferably, the positioning block 32 is connected to the transmission member 31 by screws, and the screw connection is reliable, easy to operate, and convenient to replace.

[0033] In this embodiment, the positioning assembly 3 further includes a driving device 33 for driving the transmission member 31 to move and a switch 34 for controlling the movement of the transmission member 31. The driving device 33 is preferably a cylinder, the transmission member 31 is a piston rod of the cylinder, and the switch 34 is preferably a long-press pneumatic switch 34. The driving device 33 and the transmission member 31 are arranged in the left-right direction, so that there will be no obstruction and interference, which is convenient for placing the product to achieve positioning. Furthermore, when placing the product, the staff can control the switch 34 with one hand and place the product with the other hand to achieve product positioning, which improves the operating efficiency.

[0034] In this embodiment, the positioning assembly 3 is fixed to the top surface of the lower mold 2, and the positioning assembly 3 is fixed at this position with a relatively simple, compact and simplified structure.

[0035] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A mold with a product cavity positioning function, characterized in that: It comprises an upper die and a lower die, wherein the upper die includes a punch, and a cavity for placing a product is provided on the lower die at a position opposite to the punch; A positioning assembly is provided between the upper die and the lower die, and when the upper die and the lower die are in an open state, the positioning assembly is located beside the punch in the direction of the top projection; The positioning assembly includes a transmission member and a positioning block connected to the transmission member. The positioning block is provided with a positioning surface on the side close to the cavity. The transmission member is driven to move the positioning block toward the cavity so that the positioning surface contacts and positions the product in the cavity.

2. The mold with product extracavity positioning function according to claim 1, characterized in that: The cross-sectional shape of the positioning surface matches the shape of the product.

3. The mold with product extracavity positioning function according to claim 2, characterized in that: In the direction of top projection, the length of the positioning surface does not exceed half of the circumference of the product.

4. The mold with product extracavity positioning function according to claim 1, characterized in that: The positioning block is detachably connected to the transmission member.

5. The mold with product extracavity positioning function according to claim 4, characterized in that: The positioning block is connected to the transmission member through screws.

6. The mold with product extracavity positioning function according to claim 1, characterized in that: The positioning assembly also includes a driving device for driving the transmission member to move.

7. The mold with product extracavity positioning function according to claim 6, characterized in that: The driving device is a cylinder, and the transmission member is a piston rod of the cylinder.

8. The mold with product extracavity positioning function according to claim 6, characterized in that: The driving device and the transmission member are arranged along the left-right direction.

9. The mold with product extracavity positioning function according to claim 6, characterized in that: The positioning assembly also includes a switch for controlling the movement of the transmission member.

10. The mold with product extracavity positioning function according to claim 1, characterized in that: The positioning assembly is fixed to the top surface of the lower mold.

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