Fuse lower support pressing machine and production process of lower support

Abstract

The invention relates to the technical field of pressing machines, and discloses a fuse lower support pressing machine which comprises a pressing machine body and an installation auxiliary block, the installation auxiliary block is fixedly connected to the pressing machine body, a limiting hole is formed in the installation auxiliary block, and a limiting rod is slidably connected into the limiting hole. The limiting rod can penetrate through the first penetrating hole of the auxiliary elastic piece, the second penetrating hole of the conductive elastic piece and the mounting hole of the support body, and a driving piece is arranged on the mounting auxiliary block and used for enabling the limiting rod to protrude out of the mounting auxiliary block. Compared with the mode that the auxiliary elastic piece and the conductive elastic piece are installed on the support body from the upper portion in the background technology, the mode that the auxiliary elastic piece and the conductive elastic piece are installed firstly and then the support body is installed is adopted, so that the follow-up overturning operation is avoided, and the operation difficulty and operation steps of workers are reduced; and meanwhile, the lower support can be assembled more accurately and quickly through the limiting rods.

Description

Technical Field

[0001] This application relates to the technical field of presses, and in particular to a fuse lower support press and a manufacturing process for the lower support. Background Technology

[0002] A fuse is a device that uses the low melting point of molten metal to protect a circuit. The fuse lower bracket is mainly used to support and connect the lower contacts and leads of the fuse. The press assembles the lower bracket structure by pressing.

[0003] Reference Figure 1 and Figure 2 The lower support includes a support body 3, two auxiliary springs 31, two conductive springs 32, and multiple riveting components 33. The support body 3 has multiple mounting holes for inserting the riveting components 33, and a placement groove for installing the auxiliary springs 31 and conductive springs 32. The auxiliary springs 31 have a first through hole for inserting the riveting components 33, and the conductive springs 32 have a second through hole for inserting the riveting components 33. After the auxiliary springs 31 and conductive springs 32 are assembled together, they are fixed to the support body 3 by the riveting components 33.

[0004] The press includes a press body and an installation auxiliary block. The installation auxiliary block is located in the placement slot and abuts against the riveting part on the auxiliary spring. The press body is used to press the riveting part together, so that the riveting part can fix the auxiliary spring, the conductive spring and the bracket body.

[0005] The workers need to first assemble the lower bracket, then place the installation auxiliary block in the placement slot to form an assembly, and finally invert the assembly and place it on the press body so that the press body can press the riveted parts on the surface of the bracket body away from the conductive spring. This operation is quite complicated, and the assembly is prone to fall apart during the inversion process, which requires the workers to reassemble it. Summary of the Invention

[0006] To address the cumbersome installation process of the auxiliary installation block and the bracket body, this application provides a fuse lower bracket press.

[0007] This application provides a fuse lower bracket press, which adopts the following technical solution: A fuse lower bracket press includes a press body and an installation auxiliary block. The installation auxiliary block is fixedly connected to the press body. A limit hole is formed on the installation auxiliary block, and a limit rod is slidably connected in the limit hole. The limit rod can pass through a first through hole of an auxiliary spring, a second through hole of a conductive spring, and a mounting hole of the bracket body. A driving component is provided on the installation auxiliary block to make the limit rod protrude from the installation auxiliary block.

[0008] By adopting the above technical solution, the worker first activates the drive mechanism, causing the limit rod to protrude from the mounting auxiliary block. Then, the worker places the two auxiliary springs, two conductive springs, and the bracket body onto the mounting auxiliary block. At this point, the worker closes the drive mechanism and inserts the riveting parts into the corresponding first and second through holes. The press body then presses the lower bracket together. Finally, the drive mechanism is activated again, causing the limit rod to protrude from the mounting auxiliary block, allowing the lower bracket to detach smoothly from the mounting auxiliary block, thus completing the assembly of the lower bracket. The worker only needs to place the auxiliary springs... The auxiliary spring, conductive spring, and bracket are placed sequentially on the mounting auxiliary block. The lower bracket is positioned by a limiting rod. Then, the riveting parts are installed in the corresponding holes to position the lower bracket, eliminating the need for drilling holes for positioning. Compared to the prior art where the auxiliary spring and conductive spring are installed on the bracket body from above, this application avoids subsequent flipping operations by installing the auxiliary spring and conductive spring first and then the bracket body, saving workers' operational difficulty and steps. At the same time, the limiting rod enables more precise and faster assembly of the lower bracket.

[0009] Optionally, the driving component is provided with a driving bar, the driving bar is provided with a limiting block, the limiting block is provided with a limiting inclined surface, and the moving path of the limiting inclined surface intersects with the moving path of the limiting rod; when the limiting rod abuts against the limiting block, the limiting rod protrudes from the mounting auxiliary block; when the limiting rod abuts against the driving bar, the limiting rod is located in the limiting hole.

[0010] By adopting the above technical solution, the driving component drives the driving bar to move. Since the moving path of the limiting inclined surface and the moving path of the limiting rod intersect, the limiting rod can move along the inclination of the limiting inclined surface, so that the limiting rod changes from abutting the driving bar to abutting the limiting block, thereby allowing the limiting rod to protrude from the mounting auxiliary block and enabling the limiting rod to achieve the positioning function of the lower bracket. When the driving component drives the driving bar to move, the limiting block does not apply force to the limiting rod, so that the limiting rod can retract into the limiting hole.

[0011] Optionally, the mounting auxiliary block has a fixing hole, a fixing strip is provided in the fixing hole, the limiting hole is provided on the fixing strip, the fixing strip has a fixing block, and the wall of the fixing hole has a fixing groove for the fixing block to be inserted; when the fixing block is located in the fixing groove, the fixing strip is fixed in the fixing hole.

[0012] By adopting the above technical solution, the fixing block is set in the fixing groove, allowing the fixing strip to be fixed on the installation auxiliary block. This allows the workers to directly replace the fixing strip and the sliding limit rod on the fixing strip. Different limit rods can abut against different lower brackets, making it easier to replace limit rods of different positions or diameters without replacing the entire installation auxiliary block. Only the fixing strip needs to be replaced.

[0013] Optionally, the installation auxiliary block includes an installation block and a movable block. The installation block is disposed on the press body, and the movable block is slidably disposed on the installation block. The movable block is used to place auxiliary springs and conductive springs. The movable block is provided with a movable spring, which drives the movable block to move away from the pressing direction of the press body.

[0014] By adopting the above technical solution, the moving block is driven by the moving spring to move away from the pressing of the press body, so that the moving block can slide on the mounting block. This allows for a buffer space during the pressing process of the press body on the lower support, so that the press body can press the lower support more securely.

[0015] Optionally, the movable block is provided with a limiting block, and the mounting block is provided with a limiting groove for the limiting block to slide.

[0016] By adopting the above technical solution, the limiting block slides in the limiting groove, so that the moving spring will not drive the moving block to directly detach from the mounting block, so that the workers can assemble the lower bracket onto the moving block.

[0017] Optionally, the mounting block has a placement hole, and the movable spring is disposed in the placement hole; when the movable spring abuts against the press body, the movable spring protrudes from the placement hole.

[0018] By adopting the above technical solution, the movable spring is set in the placement hole, so that the movable spring can be installed on the mounting block, reducing the possibility of the movable spring shifting on the mounting block; at the same time, the movable spring is set in the placement hole, so that the movable block is set on the mounting block, that is, the mounting block and the movable block are an integral structure, so that the lower bracket can be directly installed on the movable block, so as to facilitate the subsequent pressing process of the press body.

[0019] Optionally, the mounting auxiliary block is provided with a receiving groove for placing a conductive spring or an auxiliary spring, and the mounting auxiliary block is provided with a positioning protrusion, which is used to position the bracket body.

[0020] By adopting the above technical solution, the worker first places the conductive spring in the receiving groove. At this time, the limiting rod can pass through the second through hole, so that the conductive spring can be installed on the installation auxiliary block. By placing the bracket body on the installation auxiliary block, the positioning protrusion can be inserted into the bracket body, so that the positioning protrusion can fix the bracket body, making it difficult for the lower bracket to move on the installation auxiliary block.

[0021] Optionally, the limiting rod includes a first part and a second part, the first part being disposed on the second part, the first part having an abutting inclined surface, and the limiting hole including a first hole and a second hole, the first hole for the first part to slide, and the second hole for the second part to slide; when the limiting rod protrudes, the abutting inclined surface abuts against the wall of the second hole.

[0022] By adopting the above technical solution, when the limiting rod protrudes, it abuts against the wall of the second hole by the inclined surface, making it difficult for the limiting rod to slide in the limiting hole. When the driving component is closed, the limiting rod can still be located in the lower bracket until the worker inserts the riveting component into the lower bracket. The riveting component then drives the limiting rod to move, thereby detaching the limiting rod from the lower bracket. This ensures that the limiting rod can stably fix the lower bracket and prevents the lower bracket from separating when the worker assembles the riveting component.

[0023] A manufacturing process for a lower support includes the following steps. S1. Push out the limit rod and start the drive component. The drive component will make the limit rod protrude from the installation auxiliary block. S2. Install the auxiliary spring, conductive spring, and bracket body, and install the auxiliary spring, conductive spring, and bracket body onto the limit rod; S3. Close the drive mechanism. The drive mechanism will no longer apply force to the limit rod. S4. Install the rivet fittings; install the rivet fittings on the lower bracket. S5. Pressing process: The lower support is pressed through the press body. By adopting the above technical solution, through the protrusion of the limiting rod, the operator can install the auxiliary spring, conductive spring, and bracket body onto the mounting auxiliary block. Compared with the prior art method of abutting the mounting auxiliary block against the lower bracket, this application allows the lower bracket to be assembled sequentially, eliminating the need for the operator to rotate and adjust the lower bracket to fit the pressing position, thus achieving a faster and more convenient assembly of the lower bracket. By closing the drive component, the drive component does not apply force to the limiting rod, allowing the riveting component to be inserted into the lower bracket, enabling the riveting component to support and limit the lower bracket. Through the support of the riveting component and the limiting rod, the lower bracket is less likely to fall apart on the mounting auxiliary block.

[0024] Optionally, in step S3, after the closing drive no longer applies force to the limiting rod, the limiting rod remains in the lower bracket and limits the auxiliary spring, conductive spring and bracket body. In step S4, during the installation of the rivet, as the rivet is pressed into the lower bracket, the rivet pushes out the limiting rod, thereby disengaging the limiting rod from the lower bracket.

[0025] By adopting the above technical solution, since the limiting rod is still located in the lower bracket, the limiting rod can limit the auxiliary spring, conductive spring and bracket body; at the same time, the riveting part pushes out the limiting rod, so that the riveting part and the limiting rod can continuously and uninterruptedly position the lower bracket, avoiding the situation where the lower bracket will shift slightly when the limiting rod is detached from the lower bracket and the riveting part is not inserted into the lower bracket.

[0026] In summary, this application includes at least one of the following beneficial technical effects: The operator first activates the drive mechanism, causing the limiting rod to protrude from the mounting auxiliary block. Then, the operator places two auxiliary springs, two conductive springs, and the bracket body onto the mounting auxiliary block. The operator then deactivates the drive mechanism and inserts the rivet into the corresponding first and second through holes. The press body then presses the lower bracket together. Finally, the drive mechanism is activated again, causing the limiting rod to protrude from the mounting auxiliary block, allowing the lower bracket to detach smoothly, thus completing the assembly of the lower bracket. The operator only needs to place the auxiliary springs, conductive springs, and bracket onto the mounting auxiliary block in sequence, using the limiting rod to position the lower bracket. Then, the rivet is installed into the corresponding holes, using the rivet to position the lower bracket, eliminating the need for additional drilling for positioning. Compared to the prior art where the auxiliary springs and conductive springs are installed from above onto the bracket body, this application avoids subsequent flipping operations by installing the auxiliary springs and conductive springs first, thus reducing the operator's workload and steps. Simultaneously, the limiting rod enables more precise and faster assembly of the lower bracket.

[0027] By protruding the limiting rod, the operator can install the auxiliary spring, conductive spring, and bracket body onto the mounting auxiliary block. Compared to the prior art method of abutting the mounting auxiliary block against the lower bracket, this application allows for sequential assembly of the lower bracket, eliminating the need for the operator to rotate and adjust the lower bracket to fit the pressing position, thus achieving a faster and more convenient assembly of the lower bracket. The drive mechanism is closed, preventing it from applying force to the limiting rod, allowing the rivet to be inserted into the lower bracket. This enables the rivet to support and limit the lower bracket. The support provided by the rivet and the limiting rod prevents the lower bracket from easily dislodging on the mounting auxiliary block. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the background technology; Figure 2 This is a schematic diagram of an explosion highlighting auxiliary shrapnel in the background art; Figure 3 This is a structural schematic diagram of an embodiment of this application; Figure 4 This is a schematic diagram highlighting the installation auxiliary block in the embodiments of this application; Figure 5 This is an exploded view of the mounting block in an embodiment of this application; Figure 6 This is an exploded view showing the fixing strip in an embodiment of this application.

[0029] Reference numerals: 1. Press body; 2. Mounting auxiliary block; 21. Mounting block; 211. Placement hole; 212. Moving spring; 213. Restricting groove; 22. Moving block; 221. Through hole; 222. Restricting block; 223. Receiving groove; 224. Positioning protrusion; 23. Driving component; 231. Driving bar; 232. Limiting block; 233. Limiting inclined surface; 24. Fixing hole; 241. Fixing bar; 242. Fixing block; 243. Fixing groove; 25. Limiting rod; 251. First part; 252. Second part; 253. Abutting inclined surface; 26. Limiting hole; 261. First hole; 262. Second hole; 3. Support body; 31. Auxiliary spring; 32. Conductive spring; 33. Riveting component. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 3-6 This application will be described in further detail.

[0031] This embodiment discloses a fuse lower bracket press and a manufacturing process for the lower bracket. (Refer to...) Figure 3 A fuse lower bracket press includes a press body 1 and an installation auxiliary block 2. The installation auxiliary block 2 is used to place the lower bracket, and the press body 1 is used to perform the pressing operation.

[0032] Reference Figure 4 The installation auxiliary block 2 includes an installation block 21 and a movable block 22. The installation block 21 is fixedly connected to the press body 1 by bolts, and the movable block 22 is slidably disposed on the installation block 21.

[0033] Reference Figure 4 and Figure 5 The mounting block 21 has two placement holes 211 on its surface away from the ground. The placement holes 211 extend vertically and are equipped with moving springs 212.

[0034] Reference Figure 5The mounting block 21 has limiting grooves 213 on both sides of its surface, and the limiting grooves 213 extend along the length of the mounting block 21. The moving block 22 has a through hole 221 on its surface, and the through hole 221 extends along the length of the moving block 22. A limiting block 222 is fixedly connected to the wall of the through hole 221, and the limiting block 222 can slide within the limiting groove 213.

[0035] Reference Figure 5 When the limiting block 222 is inserted into the limiting groove 213, the moving spring 212 abuts against the side of the moving block 22 that is close to the ground. The moving spring 212 drives the moving block 22 to move away from the ground, so that the limiting block 222 abuts against the groove wall of the limiting groove 213 that is away from the ground, so that the moving block 22 will not detach from the mounting block 21.

[0036] Reference Figure 4 A driving component 23, including a driving cylinder, is fixedly connected to the mounting block 21. A driving bar 231 is fixedly connected to the driving shaft of the driving cylinder, and the driving bar 231 can slide along the length of the mounting block 21. Two limiting blocks 232 are fixedly connected to the surface of the driving bar 231 away from the ground, and limiting inclined surfaces 233 are formed on the surface of the limiting blocks 232 away from the driving cylinder.

[0037] Reference Figure 5 and Figure 6 A fixing hole 24 is provided on the surface of the mounting block 21, which is connected to the limiting groove 213. A fixing strip 241 is provided in the fixing hole 24. When the fixing strip 241 is located in the fixing hole 24, the fixing strip 241 is located in the limiting groove 213. At this time, the fixing strip 241 restricts the moving block 22 from disengaging from the limiting groove 213 along the length direction of the moving block 22.

[0038] Reference Figure 3 and Figure 6 A fixing block 242 is fixedly connected to the fixing strip 241. A fixing groove 243 communicating with the fixing hole 24 is opened on the surface of the mounting block 21 near the ground, and the fixing groove 243 allows the fixing block 242 to be inserted. When the fixing block 242 is inserted into the fixing groove 243, the fixing strip 241 is located in the fixing hole 24, and the operator can fix the mounting block 21 to the press body 1 with bolts.

[0039] Reference Figure 5 Two limiting holes 26 are formed on the surface of the fixing strip 241. A limiting rod 25 is slidably connected in the limiting holes 26, and the limiting rod 25 can slide in the vertical direction. The limiting rod 25 can be inserted into the first through hole, the second through hole, and the mounting hole. The moving path of the limiting inclined surface 233 intersects with the moving path of the limiting rod 25, so that the driving strip 231 can drive the limiting rod 25 to lift.

[0040] Reference Figure 5 The limiting rod 25 includes a first part 251 and a second part 252. The first part 251 is integrally formed on the second part 252, and the outer diameter of the first part 251 is larger than the outer diameter of the second part 252. An abutting inclined surface 253 is formed on the outer surface of the first part 251, and the distance between the abutting inclined surface 253 and the axis of the first part 251 gradually decreases along the direction from the first part 251 to the second part 252.

[0041] Reference Figure 5 and Figure 6 The limiting hole 26 includes a first hole 261 and a second hole 262, with the first hole 261 communicating with the second hole 262. The first hole 261 is located on the side of the second hole 262 that is closer to the ground. The inner diameter of the first hole 261 is larger than the inner diameter of the second hole 262. The first hole 261 is used for the sliding of the first part 251, and the second hole 262 is used for the sliding of the second part 252.

[0042] Reference Figure 5 and Figure 6 When the limiting rod 25 is raised, the first part 251 moves away from the ground and abuts against the inclined surface 253 against the wall of the second hole 262, so that the inclined surface 253 can be confined in the limiting hole 26, that is, the limiting rod 25 is not easy to fall into the limiting hole 26. Even if the inclined surface 253 is worn due to the long-term raising of the limiting rod 25, the inclined surface 253 can still abut against the wall of the second hole 262.

[0043] Reference Figure 5 and Figure 6 When the drive cylinder is started, the drive cylinder drives the drive bar 231 to move, allowing the limit rod 25 to move along the limit slope 233, that is, the limit rod 25 abuts against the drive bar 231 until it abuts against the limit block 232, allowing the limit rod 25 to protrude from the fixing bar 241.

[0044] Reference Figure 5 and Figure 6 The worker moves the riveting component into the lower bracket. The riveting component pushes the limiting rod 25 to move, so that the surface of the limiting rod 25 close to the ground abuts against the drive bar 231. At this time, the surface of the limiting rod 25 away from the ground and the surface of the fixing bar 241 away from the ground are coplanar, so as to facilitate the subsequent pressing of the lower bracket by the press body 1.

[0045] Reference Figure 5 The movable block 22 has a receiving groove 223 on its surface, which is used to place the conductive spring or auxiliary spring. The movable block 22 has a positioning protrusion 224 integrally formed on its surface, which is used to insert into the bracket body.

[0046] A manufacturing process for a lower support includes the following steps. S1. Push out the limit rod 25, start the drive component 23, and through the drive component 23 and the drive bar 231, make the limit rod 25 protrude to install the auxiliary block 2.

[0047] The auxiliary block 2 is installed by protruding through the limiting rod 25 so that the auxiliary spring, conductive spring and bracket body can be inserted into the limiting rod 25, so that the lower bracket can be assembled on the limiting rod 25.

[0048] S2. Install the auxiliary spring, conductive spring and bracket body, and install the auxiliary spring, conductive spring and bracket body on the limit rod 25 in sequence.

[0049] S3. Close the drive component 23. Closing the drive component 23 resets the drive bar 231, so that the drive component 23 no longer applies force to the limit rod 25. Because the limit rod 25 abuts against the inner wall of the second hole 262 due to the inclined surface 253, the limit rod 25 remains in the limit hole 26.

[0050] By keeping the limiting rod 25 in the limiting hole 26, the limiting rod 25 continues to limit the lower bracket, making it less likely for the lower bracket to fall apart when the drive component 23 is closed.

[0051] S4. During the installation of the rivet, as the rivet is pressed into the lower bracket, the rivet pushes out the limiting rod 25, so that the limiting rod 25 is disengaged from the lower bracket, and the limiting rod 25 abuts against the drive bar 231. The surface of the limiting rod 25 away from the ground and the surface of the fixing bar 241 away from the ground are coplanar.

[0052] The limiting rod 25 is pushed out of the lower bracket by the riveting component, so that the limiting rod 25 and the riveting component can continuously limit the lower bracket without gap, avoiding the situation where the lower bracket is not aligned when the limiting rod 25 is detached from the lower bracket and the riveting component is not inserted into the lower bracket.

[0053] S5. Pressing process: The lower support is pressed through the press body 1.

[0054] S6. The lower bracket is popped out, and the driving component 23 drives the limiting rod 25 to protrude, thereby separating the lower bracket from the installation auxiliary block 2.

[0055] The driving component 23 drives the limiting rod 25 to protrude, allowing the limiting rod 25 to abut against the riveting component. If the riveting component is not securely fixed to the lower bracket, it may detach from the lower bracket, allowing workers to directly determine whether the riveting component is securely fastened. If the riveting component is securely fixed to the lower bracket, the lower bracket and the installation auxiliary block 2 will separate, facilitating the unloading of the lower bracket by workers.

[0056] The implementation principle of the fuse lower bracket press in this application embodiment is as follows: the operator starts the drive cylinder, the drive cylinder drives the drive bar 231 to move, so that the limit rod 25 can abut against the limit block 232 along the limit slope 233, so that the limit rod 25 protrudes from the fixing bar 241.

[0057] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0058] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A fuse holder press, characterized by: The installation auxiliary block (2) is fixedly connected to the press body (1), a limiting hole (26) is formed in the installation auxiliary block (2), a limiting rod (25) is slidably connected in the limiting hole (26), the limiting rod (25) can pass through the first perforation of the auxiliary elastic sheet, the second perforation of the conductive elastic sheet and the mounting hole of the support body, and a driving piece (23) is arranged on the installation auxiliary block (2) and used for protruding the limiting rod (25) from the installation auxiliary block (2).

2. A lower holder press for a fuse according to claim 1, characterized in that: A driving strip (231) is arranged on the driving piece (23), a limiting block (232) is arranged on the driving strip (231), a limiting inclined surface (233) is formed in the limiting block (232), the movement path of the limiting inclined surface (233) intersects with the movement path of the limiting rod (25), the limiting rod (25) protrudes from the installation auxiliary block (2) when the limiting rod (25) abuts against the limiting block (232), and the limiting rod (25) is located in the limiting hole (26) when the limiting rod (25) abuts against the driving strip (231).

3. A lower holder press for a fuse according to claim 2, characterized in that: A fixing hole (24) is formed in the installation auxiliary block (2), a fixing strip (241) is arranged in the fixing hole (24), the limiting hole (26) is formed in the fixing strip (241), a fixing block (242) is arranged on the fixing strip (241), a fixing groove (243) is formed in the hole wall of the fixing hole (24) and used for inserting the fixing block (242), and the fixing strip (241) is fixed in the fixing hole (24) when the fixing block (242) is located in the fixing groove (243).

4. The lower holder press for a fuse according to claim 1, characterized in that: The installation auxiliary block (2) comprises an installation block (21) and a moving block (22), the installation block (21) is arranged on the press body (1), the moving block (22) is slidably arranged on the installation block (21), the moving block (22) is used for placing the auxiliary elastic sheet and the conductive elastic sheet, and a moving spring (212) is arranged on the moving block (22) and used for driving the moving block (22) to move away from the press body (1).

5. A lower holder press for a fuse according to claim 4, characterized in that: A limiting block (222) is arranged on the moving block (22), and a limiting groove (213) is formed in the installation block (21) and used for sliding the limiting block (222).

6. A lower holder press for a fuse according to claim 4, characterized in that: A placing hole (211) is formed in the installation block (21), and the moving spring (212) is arranged in the placing hole (211); and the moving spring (212) protrudes from the placing hole (211) when the moving spring (212) abuts against the press body (1).

7. The lower holder press for a fuse according to claim 1, wherein: The installation auxiliary block (2) is provided with a containing groove (223) for placing the conductive elastic sheet or the auxiliary elastic sheet, and a positioning protrusion (224) is arranged on the installation auxiliary block (2) and used for positioning the support body.

8. The lower holder press for a fuse according to claim 1, wherein: The limiting rod (25) comprises a first part (251) and a second part (252), the first part (251) is arranged on the second part (252), the first part (251) is provided with an abutting inclined surface (253), the limiting hole (26) comprises a first hole (261) and a second hole (262), the first hole (261) is used for sliding the first part (251), and the second hole (262) is used for sliding the second part (252); when the limiting rod (25) protrudes, the abutting inclined surface (253) abuts against the hole wall of the second hole (262).

9. A process for producing a downholder characterized by: The method comprises the following steps, S1, the ejection limiting rod (25) is ejected, the driving member (23) is started, and the protrusion of the limiting rod (25) is achieved by the driving member (23) to install the auxiliary block (2); S2, the auxiliary spring, the conductive spring and the bracket body are installed, the auxiliary spring, the conductive spring and the bracket body are installed on the limiting rod (25); S3, the driving member (23) is closed, and the driving member (23) no longer applies force to the limiting rod (25); S4, the riveting member is installed, and the riveting member is installed on the lower bracket; S5, the pressing treatment is carried out, and the pressing treatment of the lower bracket is achieved by the pressing machine body (1).

10. The production process of the lower bracket according to claim 9, wherein: In step S3, closing the driving member, after the driving member (23) no longer applies force to the limiting rod (25), the limiting rod (25) is still located in the lower bracket and limits the auxiliary spring, the conductive spring and the bracket body; In step S4, installing the riveting member, during the process of pressing the riveting member into the lower bracket, the riveting member ejects the limiting rod (25), and the limiting rod (25) is separated from the lower bracket.

Images