High-precision punching device for cavity filter cover plate

Abstract

This application relates to a high-precision punching device for cavity filter covers, belonging to the field of filter cover manufacturing technology. It includes a base, on which a sliding stage is mounted. The upper surface of the sliding stage has several punched through holes along a vertical direction that match the filter cover workpiece. A set of stop blocks are symmetrically fixed on both sides of the sliding stage. A clamping plate is connected to one of the stop blocks on the side closest to each other via a thrust spring. The thrust spring drives the two clamping plates closer together. A set of deflecting frames is symmetrically and rotatably mounted on both sides of the sliding stage. An extension frame is fixed to the top of the deflecting frames on the side closest to each other, and a pressure plate is fixed to the bottom of the extension frame. The sliding stage also includes a deflection mechanism for driving the deflecting frames to rotate and for fixing the deflecting frames. This application effectively avoids interference from the pressure plate during the installation and disassembly of the workpiece, improving the efficiency of workpiece installation and disassembly.

Description

Technical Field

[0001] This application relates to the field of filter cover manufacturing technology, and in particular to a high-precision punching device for cavity filter covers. Background Technology

[0002] A filter is a filtering circuit composed of capacitors, inductors, and resistors. A filter can effectively filter out specific frequency points in a power line to obtain a power signal of a specific frequency. In the production process of a filter, it is necessary to punch holes in its cover plate workpiece.

[0003] A high-precision punching device for cavity filter covers is designed in related technologies. It includes a base, a support rod fixed to the base, a top plate fixed to the top of the support rod, and a punching mechanism at the bottom of the top plate. The punching mechanism can slide along the width direction on the base. A sliding table slides along the length direction on the base. Several punching through holes matching the filter cover workpiece are opened vertically on the upper surface of the sliding table. A set of stop blocks are symmetrically fixed on both sides of the sliding table. A clamping plate is connected to the side wall of the set of stop blocks that are close to each other via a thrust spring. The thrust spring drives the two clamping plates to move closer together. A lead screw is vertically threaded onto the stop blocks, and a pressure plate is set at the bottom of the lead screw, located on the side of the set of clamping plates that are close to each other.

[0004] Before punching the cover plate workpiece, the workpiece needs to be placed in the feeding position (i.e., between a set of stop blocks). The side wall of the workpiece presses against the clamping plate, which in turn compresses the thrust spring. The thrust spring clamps the workpiece through the clamping plate. Then, by rotating the lead screw, the pressure plate vertically presses the workpiece onto the sliding table. Finally, by changing the position of the stamping mechanism and the sliding table, the stamping mechanism is aligned with different stamping through holes to perform the stamping operation on the workpiece.

[0005] In the process of implementing this application, it was found that the technology has at least the following problems: when installing and disassembling workpieces, due to the presence of the pressure plate, the pressure plate is always above the material release position, which will cause interference to the workpiece entering or leaving the two material blocks, affecting the efficiency of workpiece installation and disassembly. Utility Model Content

[0006] In order to minimize interference between the pressure plate and the workpiece during installation and disassembly, and to improve the efficiency of workpiece installation and disassembly, this application provides a high-precision punching device for cavity filter cover plates.

[0007] The high-precision punching device for a cavity filter cover plate provided in this application adopts the following technical solution:

[0008] A high-precision punching device for a cavity filter cover plate includes a base, on which a sliding stage is provided. The upper surface of the sliding stage has several punched through holes along the vertical direction that match the filter cover plate workpiece. A set of stop blocks are symmetrically fixed on both sides of the sliding stage. A clamping plate is connected to one of the stop blocks on the side closest to each other via a thrust spring. The thrust spring drives the two clamping plates closer together. A set of deflecting frames is symmetrically and rotatably arranged on both sides of the sliding stage. An extension frame is fixed to the top of the deflecting frames on the side closest to each other, and a pressure plate is fixed to the bottom of the extension frame. The sliding stage also includes a deflection mechanism for driving the deflecting frames to rotate and for fixing the deflecting frames.

[0009] By adopting the above technical solution, during workpiece installation or removal, the deflection mechanism drives the deflection frame to rotate, causing the pressure plate to deflect away from the sliding table. This not only moves the pressure plate away from the sliding table to create space for the workpiece, but also deflects it to the side of the workpiece placement position (away from directly above it), providing sufficient space for the workpiece to enter between the two guide blocks and minimizing interference from the pressure plate during workpiece installation or removal. After the workpiece is in place, the deflection mechanism drives the deflection frame to rotate in the opposite direction, causing the pressure plate to press the workpiece firmly onto the sliding table and fix the deflection frame in place, ensuring the stability of the workpiece position during punching. This minimizes interference from the pressure plate during workpiece installation and removal, improving the efficiency of workpiece installation and removal.

[0010] Preferably, the deflection mechanism includes a worm and a worm wheel, the worm wheel is fixedly connected to the deflection frame, the worm rotates on the sliding table, and the worm wheel meshes with the worm.

[0011] By adopting the above technical solution, when the worm is rotated, the worm and worm wheel mesh with each other, and the worm drives the worm wheel to rotate, thereby driving the deflector frame to rotate. The transmission method of worm and worm wheel meshing has self-locking property, which can keep the deflector frame stable when it rotates to the required position (i.e., the position where the pressure plate presses the workpiece), ensuring the pressure plate's pressing effect on the workpiece.

[0012] Preferably, the deflection mechanism further includes a motor, which is fixedly mounted on the sliding table, and the drive shaft of the motor is fixedly connected to the worm gear.

[0013] By adopting the above technical solution, the motor drives the worm gear to rotate, realizing automatic control of the rotation of the deflection frame. There is no need for manual rotation of the worm gear, which further improves work efficiency and reduces the labor intensity of operators.

[0014] Preferably, the sliding table includes a sliding block and a support plate. The upper surface of the sliding block is provided with a mounting groove. The support plate is detachably fixed in the mounting groove by bolts. All the stamping through holes are opened on the support plate.

[0015] By adopting the above technical solution, when the position of the stamped through hole on the support plate needs to be changed, the support plate can be removed and replaced by unscrewing the bolts, without having to replace the entire sliding table, thus improving the versatility of the device.

[0016] Preferably, the stamped through hole is formed through the upper and lower surfaces of the bearing plate, and a receiving groove extending to the bottom of the mounting groove is formed on the end wall of the sliding block. A through groove is formed between the top wall of the receiving groove and the bottom wall of the mounting groove, and a receiving box is inserted into the receiving groove.

[0017] By adopting the above technical solution, when punching the filter cover plate workpiece, the punched waste material will fall into the receiving box through the punched through holes and through slots, which facilitates the centralized collection and treatment of waste material, keeps the working environment clean, and also facilitates the subsequent recycling of waste material.

[0018] Preferably, the upper surface of the support plate is provided with a material ejection groove, and a material ejection block slides vertically in the material ejection groove. The upper surface of the material ejection block is flush with the upper surface of the support plate. The sliding platform is also provided with an upward lifting component, which is used to drive the material ejection block to move upward.

[0019] By adopting the above technical solution, after punching is completed, the lifting component drives the ejector block to move upward, lifting the punched workpiece upward and creating a gap between the workpiece and the support plate. This allows the operator to contact the bottom of the workpiece through the gap, making it easier to apply force to the workpiece and remove it, thus further improving the disassembly efficiency of the workpiece.

[0020] Preferably, the lifting assembly includes a push rod, a first connecting groove extending to the mounting groove is provided on the side wall of the sliding block, a second connecting groove extending to the unloading groove is provided on the side wall of the bearing plate, the second connecting groove is directly opposite the first connecting groove, an inclined surface is provided at the bottom of the unloading block, the push rod slides in the first connecting groove, the push rod can pass through the second connecting groove and extend into the unloading groove to abut against the inclined surface.

[0021] By adopting the above technical solution, when it is necessary to lift the ejector block, the push rod slides in the first connecting groove, the push rod passes through the second connecting groove and contacts the inclined surface at the bottom of the ejector block. As the push rod continues to move, it will push the ejector block to move upward along the ejector groove, thereby achieving the purpose of lifting the workpiece.

[0022] Preferably, the lifting assembly further includes a return spring, one end of which is fixedly connected to the push rod, and the other end of which is fixedly connected to the side wall of the sliding block. The return spring drives the push rod away from the second connecting groove.

[0023] By adopting the above technical solution, after the push rod completes the unloading operation, the elastic force of the reset spring will drive the push rod to automatically reset, moving the push rod away from the second connecting groove, preparing for the next unloading operation. At the same time, the unloading block will automatically move down and reset under the action of gravity.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting up a deflection frame, extension frame, pressure plate and deflection mechanism, when installing or disassembling workpieces, the pressure plate can be deflected to a position far away from the material release position. After installation, it can also press the workpiece tightly, minimizing the interference of the pressure plate on the installation and disassembly of the workpiece and improving the efficiency of installation and disassembly.

[0026] 2. By setting up a receiving box, a through slot, and a receiving groove, when punching holes in the cover plate workpiece, the punched waste material can fall into the receiving box in sequence through the punched through holes and through slots, realizing the centralized collection and treatment of waste material. This not only keeps the working environment clean, but also facilitates the subsequent recycling of waste material, saving resources.

[0027] 3. By setting up a material ejection groove, a material ejection block, an inclined surface, a first connecting groove, a second connecting groove, and a push rod, after punching is completed, the push rod passes through the second connecting groove and contacts the inclined surface at the bottom of the material ejection block, thereby pushing the material ejection block to move upward along the material ejection groove, lifting the punched workpiece, and creating an easy-to-operate gap between the workpiece and the support plate, making it convenient to remove the workpiece. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a high-precision punching device for a cavity filter cover provided in an embodiment of this application.

[0029] Figure 2 This is a cross-sectional view of the sliding stage in the high-precision punching device for the cavity filter cover plate in the embodiments of this application.

[0030] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0031] Explanation of reference numerals in the attached drawings: 1. Base; 11. Support rod; 12. Top plate; 13. Stamping mechanism; 131. Movable frame; 132. Stamping cylinder; 133. Stamping head; 134. First electric push rod; 2. Sliding table; 21. Sliding block; 211. Mounting slot; 212. Stop block; 2121. Thrust spring; 2122. Clamping plate; 213. Deflection frame; 2131. Extension frame; 2132. Pressure plate ; 214, receiving groove; 2141, receiving box; 215, through groove; 216, first connecting groove; 22, bearing plate; 221, stamped through hole; 222, ejector groove; 223, ejector block; 2231, inclined surface; 224, second connecting groove; 23, second electric push rod; 3, deflection mechanism; 31, worm gear; 32, worm wheel; 33, motor; 4, lifting assembly; 41, push rod; 42, return spring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses a high-precision punching device for a cavity filter cover. (Refer to...) Figure 1 The system includes a base 1, with support rods 11 fixed at the four corners of the base 1. A top plate 12 is fixed to the top of the support rods 11. A stamping mechanism 13 is provided at the bottom of the top plate 12, and the stamping mechanism 13 can slide along the width direction on the base plate. Specifically, the stamping mechanism 13 includes a movable frame 131, a stamping cylinder 132, a stamping head 133, and a first electric push rod 134. The movable frame 131 slides along the width direction at the bottom of the top plate 12. The stamping cylinder 132 is fixed on the movable frame 131 with its output end facing downwards. The stamping head 133 is fixedly installed on the output end of the stamping cylinder 132. The first electric push rod 134 is fixedly connected to one end wall of the top plate 12, and its output end is fixedly connected to the movable frame 131. The first electric push rod 134 is used to drive the movable frame 131 to slide in the width direction.

[0034] Reference Figure 1 and Figure 2 A sliding platform 2 slides along the length of the base 1. Specifically, the sliding platform 2 includes a sliding block 21 and a support plate 22. The sliding block 21 slides with the base 1. The upper surface of the sliding block 21 has a mounting groove 211. The support plate 22 is detachably fixed in the mounting groove 211 by bolts. The support plate 22 has several stamped through holes 221 that match the filter cover workpiece. By replacing the support plate 22, the hole positions of the corresponding stamped through holes 221 can be changed. A second electric push rod 23 is fixedly installed on the side wall of the base 1. The output end of the second electric push rod 23 is fixedly connected to the sliding block 21. The second electric push rod 23 is used to drive the sliding block 21 to slide along the length.

[0035] Reference Figure 2 and Figure 3 A set of stop blocks 212 are symmetrically fixed on both sides of the sliding table 2. The stop blocks 212 are connected to clamping plates 2122 on the side that are close to each other by a thrust spring 2121. The thrust spring 2121 drives the two clamping plates 2122 to move closer to each other. Specifically, the stop blocks 212 are fixed on the sliding block 21, and the clamping plates 2122 are pushed onto the bearing plate 22 by the thrust spring 2121.

[0036] Reference Figure 2 and Figure 3 A set of deflecting frames 213 are symmetrically and rotatably arranged on the sliding table 2. Specifically, a set of support blocks is fixed on the sliding block 21 at the outer side of the two stop blocks 212. A rotating shaft is mounted on the support block, and the axes of the two rotating shafts are parallel. The deflecting frames 213 are fixed to the rotating shafts. The top of the set of deflecting frames 213 extends towards the side that is close to each other and is fixed with an extension frame 2131. A pressure plate 2132 is fixedly arranged at the bottom of the extension frame 2131. A rubber pad is fixedly arranged on the lower surface of the pressure plate 2132. The pressure plate 2132 can press the cover plate workpiece tightly onto the bearing plate 22.

[0037] Reference Figure 2 and Figure 3 The sliding table 2 is also equipped with a deflection mechanism 3, which drives the deflection frame 213 to rotate and fix the deflection frame 213. Specifically, the deflection mechanism 3 includes a worm 31, a worm wheel 32, and a motor 33. The worm wheel 32 is coaxial with and fixedly connected to the rotating shaft on the deflection frame 213. The worm 31 rotates on the sliding block 21, and the worm wheel 32 meshes with the worm 31. The two worms 31 are coaxial and fixedly connected. A fixing frame is fixed on one side wall of the sliding frame. The motor 33 is fixedly mounted on the fixing frame. The drive shaft of the motor 33 is fixedly connected to the worm 31, and the motor 33 is used to drive the two worms 31 to rotate simultaneously.

[0038] Reference Figure 2 and Figure 3 During workpiece installation or removal, motor 33 drives worm gear 32 to rotate via worm 31. Worm gear 32 drives deflection frame 213 to rotate via shaft, causing pressure plate 2132 to deflect away from sliding table 2. This not only moves pressure plate 2132 away from sliding table 2, freeing up the material feeding position, but also deflects pressure plate 2132 to the side of the feeding position, providing sufficient space for workpiece to enter between the two stop blocks 212, minimizing interference between pressure plate 2132 and workpiece installation or removal. After workpiece is installed in place, motor 33 drives deflection frame 213 to rotate in the opposite direction via worm 31 and worm gear 32, pressing pressure plate 2132 onto sliding table 2. The self-locking characteristic of worm gear 31 on worm gear 32 secures deflection frame 213, ensuring workpiece stability during punching.

[0039] To facilitate the collection of stamping waste, refer to Figure 2 and Figure 3 A punching through-hole 221 is formed through the upper and lower surfaces of the support plate 22. A receiving groove 214 extending to the bottom of the mounting groove 211 is formed on the end wall of the sliding block 21. A through groove 215 is formed between the top wall of the receiving groove 214 and the bottom wall of the mounting groove 211. A receiving box 2141 is inserted into the receiving groove 214. When the filter cover workpiece is punched, the waste material falls from the punching through-hole 221, passes through the through groove 215 and falls into the receiving box 2141, realizing the collection of waste material.

[0040] To facilitate the removal of the stamped filter cover plate from the support plate 22, refer to Figure 2 and Figure 3 The upper surface of the support plate 22 is provided with a material ejection groove 222, and a material ejection block 223 slides vertically within the material ejection groove. The upper surface of the material ejection block 223 is flush with the upper surface of the support plate 22. A lifting assembly 4 is also provided on the sliding table 2, which is used to drive the material ejection block 223 upward. The lifting assembly 4 includes a push rod 41 and a return spring 42. A first connecting groove 216 extending to the mounting groove 211 is provided on the side wall of the sliding block 21, and a second connecting groove 224 extending to the material ejection groove 222 is provided on the side wall of the support plate 22. The second connecting groove 224 is directly opposite the first connecting groove 216. An inclined surface 2231 is provided at the bottom of the material ejection block 223. The push rod 41 slides within the first connecting groove 216, and can pass through the second connecting groove 224 and extend into the material ejection groove 222 to abut against the inclined surface 2231. One end of the return spring 42 is fixedly connected to the push rod 41, and the other end of the return spring 42 is fixedly connected to the side wall of the sliding block 21. The return spring 42 drives the push rod 41 away from the second connecting groove 224. When it is necessary to remove the stamped workpiece, the push rod 41 is pushed to overcome the elastic force of the return spring 42, so that the push rod 41 abuts against the inclined surface 2231 at the bottom of the ejector block 223, thereby pushing the ejector block 223 upward and lifting the workpiece for easy removal.

[0041] The implementation principle of the high-precision punching device for cavity filter cover plates in this application embodiment is as follows: When changing the cover plate workpiece, the motor 33 is started, and the motor 33 drives the worm gear 31 to rotate. The worm gear 31 drives the worm wheel 32 to rotate, which in turn drives the deflection frame 213 to deflect outward. The pressure plate 2132 then deflects away from the sliding table 2, thereby deviating from directly above the workpiece placement position, providing space for changing the cover plate workpiece. Next, the push rod 41 is pushed so that the push rod 41 abuts against the inclined surface 2231 at the bottom of the ejector block 223, thereby pushing the ejector block 223 upward, lifting the finished filter cover plate workpiece for easy removal. Then, the filter cover plate workpiece to be processed is placed on the support plate 22, located between the two stop blocks 212, and the workpiece is clamped by the push spring 2121 pushing the clamping plate 2122. Then, the motor 33 is started again, causing the deflector 213 to rotate in the opposite direction. The pressure plate 2132 presses the workpiece onto the bearing plate 22. At the same time, the self-locking effect of the worm gear 31 on the worm wheel 32 ensures that the pressure plate 2132 is stable in position during the punching process.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-precision punching device for cavity filter cover plates, comprising a base (1) provided with a sliding table (2), the upper surface of the sliding table (2) being provided with a plurality of punching through holes (221) matching the filter cover plate workpiece in the vertical direction, and a set of material blocking blocks (212) being symmetrically and fixedly arranged on both sides of the sliding table (2), and a set of the material blocking blocks (212) being connected with clamping plates (2122) on the side close to each other through a push spring (2121), and the push spring (2121) driving the two clamping plates (2122) to close to each other. The sliding table (2) is symmetrically and rotatably equipped with a set of deflection frames (213) on both sides. The top of the set of deflection frames (213) extends toward the side that is close to each other and is fixed with an extension frame (2131). The bottom of the extension frame (2131) is fixed with a pressure plate (2132). The sliding table (2) is also equipped with a deflection mechanism (3). The deflection mechanism (3) is used to drive the deflection frame (213) to rotate and to fix the deflection frame (213).

2. The high-precision punching device for the cover plate of a cavity filter according to claim 1, characterized in that: The deflection mechanism (3) includes a worm (31) and a worm wheel (32). The worm wheel (32) is fixedly connected to the deflection frame (213). The worm (31) rotates on the sliding table (2). The worm wheel (32) meshes with the worm (31).

3. The high-precision punching device for a cavity filter cover plate according to claim 2, characterized in that: The deflection mechanism (3) also includes a motor (33), which is fixedly mounted on the sliding table (2), and the drive shaft of the motor (33) is fixedly connected to the worm gear (31).

4. The high-precision punching device for the cover plate of a cavity filter according to claim 1, characterized in that: The sliding stage (2) includes a sliding block (21) and a support plate (22). The upper surface of the sliding block (21) is provided with a mounting groove (211). The support plate (22) is detachably fixed in the mounting groove (211) by bolts. All the stamping through holes (221) are opened on the support plate (22).

5. The high-precision punching device for a cavity filter cover plate according to claim 4, characterized in that: The stamped through hole (221) is opened through the upper and lower surfaces of the bearing plate (22). The end wall of the sliding block (21) is provided with a receiving groove (214) extending to the bottom of the mounting groove (211). A through groove (215) is opened between the top wall of the receiving groove (214) and the bottom wall of the mounting groove (211). A receiving box (2141) is inserted in the receiving groove (214).

6. The high-precision punching device for a cavity filter cover plate according to claim 4, characterized in that: The upper surface of the support plate (22) is provided with a material ejection groove (222), and a material ejection block (223) slides vertically in the material ejection groove (222). The upper surface of the material ejection block (223) is flush with the upper surface of the support plate (22). The sliding table (2) is also provided with a lifting component (4), which is used to drive the material ejection block (223) to move upward.

7. The high-precision punching device for a cavity filter cover plate according to claim 6, characterized in that: The lifting assembly (4) includes a push rod (41). The sliding block (21) has a first connecting groove (216) extending to the mounting groove (211) on its side wall. The bearing plate (22) has a second connecting groove (224) extending to the unloading groove (222) on its side wall. The second connecting groove (224) is directly opposite the first connecting groove (216). The unloading block (223) has an inclined surface (2231) at its bottom. The push rod (41) slides in the first connecting groove (216). The push rod (41) can pass through the second connecting groove (224) and extend into the unloading groove (222) to abut against the inclined surface (2231).

8. The high-precision punching device for a cavity filter cover plate according to claim 7, characterized in that: The lifting assembly (4) also includes a return spring (42), one end of which is fixedly connected to the push rod (41), and the other end of which is fixedly connected to the side wall of the sliding block (21). The return spring (42) drives the push rod (41) away from the second connecting groove (224).

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