A press flanging die for flanging instead of a rotary flanging cutter

Abstract

The utility model discloses a kind of press flanging die for replacing lathe hob to curl, apply in mechanical processing field, including upper die and lower die, the upper die includes upper die main body, the surface of upper die main body is slidably sleeved with pressure sleeve, the surface of upper die main body is equipped with buckle, first spring is arranged between the top of buckle and pressure sleeve, and first spring is sleeved on the surface of upper die main body, the lower die includes lower die main body;The utility model is designed upper die lower die tool by using hand press with lever limiting, completely replaces lathe hob rotation mode to realize the curling process of product, thoroughly eliminates the injury risk brought to operator by previous curling process, and also guarantees the curling quality of product;Meanwhile, the curling operation of online hand press can reduce semi-finished product back and forth carrying, improve product overall assembly efficiency, reduce product cost.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a press edge-rolling die that replaces a lathe hob for edge rolling. Background Technology

[0002] In the manufacturing process of many RF connectors, due to the specific requirements of the application scenarios for mechanical and electrical performance, the outer conductor often needs to adopt a crimped edge structure. By crimping one of the parts, two metal parts are effectively connected to form a whole. The quality of this crimping process directly affects the connection reliability and overall performance of the RF connector, therefore, high requirements are placed on the precision and stability of the crimping process.

[0003] Currently, the edge-rolling process typically uses lathe hobs. When using a lathe hob for edge-rolling, the connected parts need to be supported and gently pushed by hand. During this process, the edge-rolled parts are clamped and rotated, and the hob rotates along with them, which poses a risk of operator injury. On the other hand, even desktop lathes are not easy to move around and need to be fixed in one place. They cannot be arbitrarily matched with production lines that have different processes depending on the product. Therefore, the lathe hob edge-rolling process needs to be operated offline. This back-and-forth handling of semi-finished products inevitably prolongs the product assembly time. To solve the above problems, we propose a press edge-rolling die to replace the lathe hob for edge-rolling. Utility Model Content

[0004] The purpose of this invention is to provide a press edge-rolling die that can replace the lathe hob for edge rolling, which has the advantages of high safety and convenient assembly.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a press hemming die for replacing a lathe hob for hemming, comprising an upper die and a lower die, characterized in that the upper die comprises an upper die body, a pressure sleeve is slidably sleeved on the surface of the upper die body, a retaining ring is installed on the surface of the upper die body, a first spring is provided between the retaining ring and the top of the pressure sleeve, and the first spring is sleeved on the surface of the upper die body; the lower die comprises a lower die body, a telescopic head is provided on the top of the lower die body, two hemming blocks are slidably connected to the top of the telescopic head, and a fourth spring is provided between the hemming blocks and the inner wall of the telescopic head.

[0006] By adopting the above technical solution, the upper and lower die tools of the hand press with lever limit position are designed to completely replace the lathe hobbing rotation method to realize the edge rolling process of the product. This completely eliminates the risk of injury to the operator caused by the previous edge rolling process and also ensures the edge rolling quality of the product. At the same time, the edge rolling operation of the online hand press can reduce the back and forth handling of semi-finished products, improve the overall assembly efficiency of the product, and reduce the product cost.

[0007] The present invention is further configured such that: a fixing block is installed on the inner wall of the upper mold body, a pressure rod is slidably sleeved on the inner wall of the upper mold body, and a second spring is provided between the top of the pressure rod and the bottom of the fixing block.

[0008] By adopting the above technical solution, a fixed block, a pressure rod, and a second spring are set up. The pressure rod exerts a certain pushing force on the product parts under the action of the second spring and makes them stand upright, thus ensuring the effect of edge curling.

[0009] The present invention is further configured such that: two screws are slidably sleeved on the inner wall of the telescopic head, and the screws are threadedly connected to the inner wall of the lower mold body, and a third spring is sleeved on the surface of the screws.

[0010] By adopting the above technical solution, a screw and a third spring are used to buffer and support the telescopic head.

[0011] The present invention is further configured such that two limiting rods are installed on the inner wall of the telescopic head.

[0012] By adopting the above technical solution, a limiting rod is set to limit the edge-rolling block and prevent the edge-rolling block from slipping out.

[0013] The present invention is further configured such that: a positioning pin is fixedly sleeved on the inner wall of the pressure sleeve, and a sliding groove is provided on the surface of the upper mold body, with the positioning pin and the sliding groove passing through each other.

[0014] By adopting the above technical solution, positioning pins and sliding grooves are set to guide the positioning of the pressure sleeve and prevent the pressure sleeve from shifting.

[0015] In summary, this utility model has the following beneficial effects: This invention utilizes a hand press with levers and limited positioning to design upper and lower mold tools, completely replacing the lathe hobbing method to achieve the edge-rolling process of products. This eliminates the risk of injury to operators from the previous edge-rolling process and ensures the quality of the edge-rolling. At the same time, the edge-rolling operation of the online hand press can reduce the back-and-forth handling of semi-finished products, improve the overall assembly efficiency of the product, and reduce product costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a three-dimensional view of the upper mold structure of this utility model; Figure 4 This is a three-dimensional view of the lower mold structure of this utility model; Figure 5 This is a cross-sectional view of the upper mold structure of this utility model; Figure 6 This is a cross-sectional view of the lower mold structure of this utility model.

[0017] Reference numerals in the attached drawings: 1. Upper mold; 2. Lower mold; 3. Upper mold body; 4. Pressure sleeve; 5. Buckle ring; 6. First spring; 7. Lower mold body; 8. Telescopic head; 9. Edge rolling block; 10. Fourth spring; 11. Fixing block; 12. Pressure rod; 13. Second spring; 14. Screw; 15. Third spring; 16. Limiting rod; 17. Positioning pin; 18. Slide groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A press-type edge-rolling die for replacing lathe hobs includes an upper die 1 and a lower die 2. The upper die 1 includes an upper die body 3, a pressure sleeve 4 slidably fitted onto the surface of the upper die body 3, a retaining ring 5 installed on the surface of the upper die body 3, and a first spring 6 disposed between the retaining ring 5 and the top of the pressure sleeve 4, with the first spring 6 sleeved on the surface of the upper die body 3. The lower die 2 includes a lower die body 7, a telescopic head 8 disposed on the top of the lower die body 7, and two edge-rolling blocks 9 slidably connected to the top of the telescopic head 8. A fourth spring 10 is disposed between the edge-rolling blocks 9 and the inner wall of the telescopic head 8. By using a hand press with lever-controlled limiting mechanism to design the upper and lower die tools, the edge-rolling process of the product is completely replaced by the rotation method of lathe hobs, thus eliminating the risk of injury to the operator caused by the previous edge-rolling process and ensuring the edge-rolling quality of the product. At the same time, the edge-rolling operation of the online hand press can reduce the back-and-forth handling of semi-finished products, improve the overall assembly efficiency of the product, and reduce product costs.

[0020] refer to Figure 2 and Figure 5 A fixing block 11 is installed on the inner wall of the upper mold body 3, and a pressure rod 12 is slidably sleeved on the inner wall of the upper mold body 3. A second spring 13 is provided between the top of the pressure rod 12 and the bottom of the fixing block 11. By setting the fixing block 11, the pressure rod 12 and the second spring 13, the pressure rod 12 generates a certain pushing force on the product parts under the action of the second spring 13 and makes them stand upright, ensuring the effect of the rolled edge.

[0021] refer to Figure 2 and Figure 6 The inner wall of the telescopic head 8 is slidably fitted with two screws 14, and the screws 14 are threadedly connected to the inner wall of the lower mold body 7. A third spring 15 is fitted on the surface of the screws 14. By setting the screws 14 and the third spring 15, the telescopic head 8 is buffered and supported.

[0022] refer to Figure 2 and Figure 6 Two limiting rods 16 are installed on the inner wall of the telescopic head 8. By setting the limiting rods 16, the edge-rolling block 9 is limited to prevent it from sliding out.

[0023] refer to Figure 2 and Figure 5 The inner wall of the pressure sleeve 4 is fixedly fitted with a positioning pin 17, and the surface of the upper mold body 3 is provided with a sliding groove 18, and the positioning pin 17 and the sliding groove 18 are connected through each other. By setting the positioning pin 17 and the sliding groove 18, the pressure sleeve 4 is positioned and guided to prevent the pressure sleeve 4 from shifting.

[0024] Brief description of the usage process: The top of the telescopic head 8 has two symmetrical hemming blocks 9. In the initial state, these two hemming blocks 9 are open outward under the tension of the fourth spring 10. At this time, the product to be hemmed can be placed. After the product is placed, when the upper mold 1 is pressed down, the upper mold 1 pre-contacts the hemming blocks 9 on the telescopic head 8. Under the push of the fourth spring 10, the pressure sleeve 4 makes the two hemming blocks 9 move towards the center, i.e., the central axis. When the pressure sleeve 4 is pressed down to a certain position, it converts into the upper mold body 3 applying the push. At this time, the two hemming blocks 9 gradually and completely come together to form a beveled circle. The beveled edge of the beveled circle has also contacted the hemming part of the product to be hemmed. Then the upper mold 1 continues to press down. The push of the upper mold body 3 is transmitted to the hemmed part of the product through the hemming blocks 9. The beveled edge of the hemming blocks 9 squeezes the hemmed part and forms a hemmed edge at the end of the part, thus completing the hemming process. The size of the hemmed edge is controlled by adjusting the upper mold limit of the hand press.

[0025] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A press hemming die for replacing a lathe hob, comprising an upper die (1) and a lower die (2), characterized in that, The upper mold (1) includes an upper mold body (3), a pressure sleeve (4) is slidably sleeved on the surface of the upper mold body (3), a buckle (5) is installed on the surface of the upper mold body (3), a first spring (6) is provided between the buckle (5) and the top of the pressure sleeve (4), and the first spring (6) is sleeved on the surface of the upper mold body (3). The lower mold (2) includes a lower mold body (7), a telescopic head (8) is provided on the top of the lower mold body (7), two rolled edge blocks (9) are slidably connected to the top of the telescopic head (8), and a fourth spring (10) is provided between the rolled edge blocks (9) and the inner wall of the telescopic head (8).

2. A press hemming die for hemming as described in claim 1, characterized in that, A fixing block (11) is installed on the inner wall of the upper mold body (3), and a pressure rod (12) is slidably sleeved on the inner wall of the upper mold body (3). A second spring (13) is provided between the top of the pressure rod (12) and the bottom of the fixing block (11).

3. A press hemming die for hemming as described in claim 1, characterized in that, The inner wall of the telescopic head (8) is slidably sleeved with two screws (14), and the screws (14) are threadedly connected to the inner wall of the lower mold body (7). A third spring (15) is sleeved on the surface of the screws (14).

4. A press hemming die for hemming as described in claim 1, characterized in that, Two limiting rods (16) are installed on the inner wall of the telescopic head (8).

5. A press hemming die for hemming as described in claim 1, characterized in that, The inner wall of the pressure sleeve (4) is fixedly fitted with a positioning pin (17), and the surface of the upper mold body (3) is provided with a sliding groove (18), and the positioning pin (17) and the sliding groove (18) are connected through each other.

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