Rapid convex hull pressing device of semiconductor equipment precision sheet metal squeeze riveter

Abstract

The utility model discloses a rapid convex hull pressing device of a semiconductor equipment precision sheet metal squeeze riveter, which belongs to the technical field of convex hull stamping dies of squeeze riveters and comprises a convex hull upper die and a convex hull lower die which are oppositely arranged. Wherein a convex hull cavity is formed in the side, facing the convex hull lower die, of the convex hull upper die, the convex hull lower die comprises a lower die base and a stamping base arranged on the lower die base in a floating mode, and a forming convex part capable of being embedded into the convex hull cavity is arranged on the stamping base; a first positioning pin capable of being matched with the convex hull cavity in an inserted mode is arranged in the middle of the forming convex part. The rapid convex hull pressing device of the semiconductor equipment precision metal plate squeeze riveter solves the problems that an existing convex hull punching die needs excessive manual participation in the using process, and the convex hull quality is difficult to guarantee.

Description

Technical Field

[0001] The utility model relates to the technical field of convex bulge punching dies for a riveting machine, in particular to a fast convex bulge pressing device for a precision sheet metal riveting machine for semiconductor equipment. Background Art

[0002] Punching convex hulls is a way to add connection positions to sheet metal parts. However, punching convex hulls requires that the sheet metal parts be placed accurately on the convex hull lower die manually. During the entire process of pressing the convex hull upper die down onto the convex hull lower die, the position of the sheet metal parts needs to be manually controlled to prevent the position of the sheet metal parts from shifting, resulting in the dislocation of the punched convex hulls. At the same time, since the sheet metal parts and the convex hull lower die fit tightly during stamping, it takes a certain amount of time to manually remove the sheet metal parts, which affects efficiency.

[0003] Therefore, there is an urgent need for a semiconductor equipment precision sheet metal riveting machine rapid bulge pressing device that can assist manual labor in balancing the position of sheet metal parts and facilitate manual labor in removing sheet metal parts from the bulge lower die. Utility Model Content

[0004] The utility model aims to provide a fast convex bulge pressing device for a precision sheet metal riveting machine for semiconductor equipment, which solves the problem that the existing convex bulge punching mold requires excessive manual participation during use and is difficult to ensure the quality of the convex bulge.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fast convex pressing device of a precision sheet metal riveting machine for semiconductor equipment, comprising a convex upper die and a convex lower die arranged relatively;

[0006] Wherein, a convex cavity is arranged on the side of the convex upper die facing the convex lower die, the convex lower die comprises a lower die seat and a stamping base floatingly arranged on the lower die seat, and a molding convex portion capable of being embedded in the convex cavity is arranged on the stamping base;

[0007] A first positioning pin capable of plugging and cooperating with the convex cavity is arranged in the middle of the molding convex portion.

[0008] In a preferred embodiment of the utility model, a cylindrical cavity is provided on the stamping base, and one end of the lower die base can be slidably embedded in the cylindrical cavity;

[0009] A limiting groove is arranged on the outer periphery of one end of the lower die base embedded in the cylindrical cavity, a limiting bolt with one end capable of extending into the limiting groove is threadedly connected to the stamping base, and a torsion spring is arranged between the bottom of the cylindrical cavity and the lower die base, and two ends of the torsion spring are respectively embedded in the lower die base and the stamping base.

[0010] In a preferred embodiment of the utility model, the limiting slide groove includes a first section, a second section, and a third section which are smoothly transitionally connected, and the first section and the third section are staggered and both are arranged parallel to the central axis of the lower die base.

[0011] In a preferred embodiment of the utility model, a sinking groove is provided in the middle of one side of the lower die seat facing the bottom of the cylindrical cavity, and the bottom of the sinking groove is threadedly connected with a second locating pin that can be slidably inserted into the stamping base and the first locating pin.

[0012] In a preferred embodiment of the utility model, one end of the torsion spring can be embedded in the bottom of the sinking groove.

[0013] In a preferred embodiment of the present invention, the torsion spring can be slidably sleeved on the outer periphery of the second positioning pin.

[0014] In a preferred embodiment of the present invention, the outer periphery of the second positioning pin is symmetrically provided with grooves along its axis.

[0015] In a preferred embodiment of the present invention, the number of the limiting sliding grooves is at least two, and the limiting sliding grooves on the lower die base are arranged in a circular array.

[0016] The beneficial effects of the utility model are:

[0017] (1) The convex upper die and the convex lower die can be installed on the riveting machine accordingly, and through holes are set at the positions on the sheet metal parts where the convex bulges need to be punched. The sheet metal parts are manually placed on the convex lower die, and the initial positioning of the sheet metal parts can be completed by simply passing the sheet metal parts through the through holes. The riveting machine then drives the convex upper die to dock with the convex lower die. Since the stamping base is floatingly set on the lower die base, the outer edge of the bottom side of the convex upper die and the forming convex part on the stamping base cooperate with each other, so that the sheet metal parts can be laid flat on the forming convex part to prevent one side of the sheet metal parts from lifting up during stamping;

[0018] (2) As the convex upper die continues to press down, the stamping base will rise and fall vertically and rotate along the limiting slide. When the top of the lower die seat abuts against the bottom of the cylindrical cavity, the end of the limiting bolt moves to the bottom of the third section, and its outer periphery abuts against the outer periphery of the third section. When the convex upper die continues to press down, it can cooperate with the forming convex part to stamp the sheet metal part. After the convex stamping is completed, the convex upper die moves up, and the energy accumulated by the torsion spring can drive the stamping base to rise and rotate along the third section, the second section, and the first section of the limiting slide. At this time, it is only necessary to manually support the sheet metal part to prevent the sheet metal part from rotating synchronously so that the sheet metal part can be detached from the stamping base, so as to facilitate manual removal of the sheet metal part with the convex stamping from the stamping base. This can reduce the labor intensity of manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the tooling mold in the preferred embodiment of the utility model;

[0021] Figure 2 In the preferred embodiment of the utility model Figure 1 Schematic diagram of the cross-sectional structure at AA;

[0022] Figure 3 It is a structural schematic diagram of the lower die base in the preferred embodiment of the utility model;

[0023] Among them, 1. convex upper die; 11. convex cavity; 2. convex lower die; 21. lower die seat; 211. limiting slide groove; 2111. first section; 2112. second section; 2113. third section; 212. sinking groove; 22. stamping base; 221. forming convex part; 222. first positioning pin; 223. cylindrical cavity; 3. limiting bolt; 4. torsion spring; 5. second positioning pin; 501. groove. DETAILED DESCRIPTION

[0024] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] like Figure 1-Figure 3As shown, a rapid bulge pressing device of a precision sheet metal riveting machine for semiconductor equipment includes a bulge upper die 1 and a bulge lower die 2 arranged opposite to each other; wherein, a bulge upper die 1 is provided with a bulge cavity 11 on the side facing the bulge lower die 2, and the bulge lower die 2 includes a lower die seat 21 and a stamping base 22 floatingly arranged on the lower die seat 21, and a molding convex portion 221 capable of being embedded in the bulge cavity 11 is provided on the stamping base 22; a first positioning pin 222 capable of being plugged and matched with the bulge cavity 11 is provided in the middle of the molding convex portion 221.

[0027] Specifically, the convex upper die 1 and the convex lower die 2 can be correspondingly installed on the riveting machine, and through holes are provided at the positions on the sheet metal parts where the convex bulges need to be punched. When the sheet metal parts are placed on the convex lower die 2 manually, the preliminary positioning of the sheet metal parts can be completed by passing the sheet metal parts through the through holes. Then the riveting machine drives the convex upper die 1 to dock with the convex lower die 2. Since the stamping base 22 is floatingly arranged on the lower die base 21, the outer edge of the bottom side of the convex upper die 1 and the forming convex part 221 on the stamping base 22 cooperate with each other, so that the sheet metal parts can be laid flat on the forming convex part 221 to prevent one side of the sheet metal parts from tilting up during stamping.

[0028] As mentioned above, the structure of the convex lower die 2 is as follows Figure 2 As shown, specifically, a cylindrical cavity 223 is provided on the stamping base 22, and one end of the lower die base 21 can be slidably embedded in the cylindrical cavity 223; a limiting slot 211 is provided on the outer periphery of one end of the lower die base 21 embedded in the cylindrical cavity 223, and a limiting bolt 3 with one end that can extend into the limiting slot 211 is threadedly connected to the stamping base 22, and a torsion spring 4 is provided between the bottom of the cylindrical cavity 223 and the lower die base 21, and the two ends of the torsion spring 4 are respectively embedded in the lower die base 21 and the stamping base 22. In the process of pressing down the convex upper die 1, the torsion spring 4 provides the supporting force of the forming convex part 221 on the sheet metal part; when the torsion spring 4 is compressed, the stamping base 22 will be vertically lifted and rotated along the limiting slot 211 until the top of the lower die base 21 abuts against the bottom of the cylindrical cavity 223, and the convex upper die 1 can cooperate with the forming convex part 221 to stamp the sheet metal part. After the convex bump stamping is completed, the convex bump upper die 1 moves upward, and the energy accumulated by the torsion spring 4 can drive the stamping base 22 to rise and rotate along the limiting slide groove 211. At this time, the sheet metal part can be separated from the stamping base 22 by only manually supporting the sheet metal part to prevent the sheet metal part from rotating synchronously, so as to facilitate manual removal of the sheet metal part with the convex bump from the stamping base 22.

[0029] The above, such as Figure 3As shown, the limiting slide groove 211 includes a first section 2111, a second section 2112, and a third section 2113 that are smoothly connected. The first section 2111, the second section 2112, and the third section 2113 are arranged from top to bottom on the lower die base 21. The first section 2111 and the third section 2113 are staggered and arranged parallel to the central axis of the lower die base 21, so that the sheet metal can remain stable during positioning and stamping. There is a certain bending angle between the second section 2112 and the first section 2111 and the third section 2113, so that the stamping base 22 can rotate relative to the lower die base 21 along the second section 2112.

[0030] In this embodiment, a sinking groove 212 is provided in the middle of one side of the lower die base 21 facing the bottom of the cylindrical cavity 223. One end of the torsion spring 4 can be embedded in the bottom of the sinking groove 212. The sinking groove 212 can provide space for the compressed torsion spring 4 when the top side of the lower die base 21 abuts against the bottom of the cylindrical cavity 223. The bottom of the sinking groove 212 is threadedly connected with a second positioning pin 5 that can be slidably inserted into the stamping base 22 and the first positioning pin 222, so as to guide the stamping base 22 when it moves relative to the lower die base 21.

[0031] Furthermore, the torsion spring 4 can be slidably mounted on the outer periphery of the second positioning pin 5 so that the torsion spring 4 can be compressed and stretched along the outer periphery of the second positioning pin 5 to prevent the torsion spring 4 from bending and affecting the lifting and rotating movements of the stamping base 22 .

[0032] As mentioned above, the outer periphery of the second positioning pin 5 is symmetrically provided with grooves 501 along its central axis, so that the second positioning pin 5 can be disassembled and installed with the aid of a wrench or other tool.

[0033] In the present technical solution, the number of the limiting grooves 211 is at least two, and the limiting grooves 211 on the lower die base 21 are arranged in a circular array, so that the resistance encountered by the stamping base 22 when moving along the limiting grooves 211 is more evenly distributed, thereby preventing jamming.

[0034] Working principle: The convex upper die 1 and the convex lower die 2 can be correspondingly installed on the riveting machine, and the positions on the sheet metal parts where the convex bulges need to be punched are all provided with through holes. When the sheet metal parts are placed on the convex lower die 2 manually, the preliminary positioning of the sheet metal parts can be completed by passing the sheet metal parts through the through holes. The convex upper die 1 continues to be pressed down, and the torsion spring 4 is compressed. In this process, the torsion spring 4 will provide the supporting force of the forming convex part 221 on the sheet metal parts, and the outer edge of the bottom side of the convex upper die 1 and the forming convex part 221 on the stamping base 22 are mutually matched, so that the sheet metal parts can be laid flat on the forming convex part 221 to prevent the sheet metal parts from tilting on one side during stamping. At the same time, the stamping base 22 will be vertically lifted and rotated along the limiting slide 211. When the top of the lower die base 21 abuts against the bottom of the cylindrical cavity 223, the end of the limiting bolt 3 moves to the bottom of the third section 2113, and its outer periphery abuts against the outer periphery of the third section 2113. When the convex upper die 1 continues to press down, it can cooperate with the forming convex part 221 to punch the sheet metal part. After the convex stamping is completed, the convex upper die 1 moves up, and the energy accumulated by the torsion spring 4 can drive the stamping base 22 to be lifted and rotated along the third section 2113, the second section 2112, and the first section 2111 of the limiting slide 211. At this time, it is only necessary to manually support the sheet metal part to prevent the sheet metal part from rotating synchronously, so that the sheet metal part can be separated from the stamping base 22, so as to facilitate manual removal of the sheet metal part with the convex stamping from the stamping base 22.

[0035] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A fast convex pressing device for a precision sheet metal riveting machine for semiconductor equipment, characterized in that: It comprises a convex hull upper die (1) and a convex hull lower die (2) which are arranged opposite to each other; A convex cavity (11) is provided on the side of the convex upper die (1) facing the convex lower die (2); the convex lower die (2) comprises a lower die seat (21) and a stamping base (22) floatingly arranged on the lower die seat (21); and a molding convex portion (221) capable of being embedded in the convex cavity (11) is provided on the stamping base (22); A first positioning pin (222) capable of being plugged into and matched with the convex cavity (11) is provided in the middle of the molding convex portion (221).

2. The fast convex pressing device of the semiconductor equipment precision sheet metal riveting machine according to claim 1 is characterized in that: The stamping base (22) is provided with a cylindrical cavity (223), and one end of the lower die base (21) is capable of slidingly embedding into the cylindrical cavity (223); A limiting groove (211) is arranged on the outer periphery of one end of the lower die base (21) embedded in the cylindrical cavity (223); a limiting bolt (3) is threadedly connected to the stamping base (22) and one end of the limiting groove (211) can be inserted into the limiting groove; a torsion spring (4) is arranged between the bottom of the cylindrical cavity (223) and the lower die base (21); and two ends of the torsion spring (4) are respectively embedded in the lower die base (21) and the stamping base (22).

3. The fast convex pressing device for a precision sheet metal riveting machine for semiconductor equipment according to claim 2, characterized in that: The limiting slide groove (211) comprises a first section (2111), a second section (2112), and a third section (2113) which are smoothly transitionally connected, and the first section (2111) and the third section (2113) are staggered and arranged parallel to the central axis of the lower die base (21).

4. The rapid convex pressing device of the precision sheet metal riveting machine for semiconductor equipment according to claim 2, characterized in that: A sinking groove (212) is provided in the middle of one side of the lower die base (21) facing the bottom of the cylindrical cavity (223), and a second positioning pin (5) capable of being slidably inserted into the stamping base (22) and the first positioning pin (222) is threadedly connected to the bottom of the sinking groove (212).

5. The rapid convex pressing device of the semiconductor equipment precision sheet metal riveting machine according to claim 4, characterized in that: One end of the torsion spring (4) can be embedded in the bottom of the sinking groove (212).

6. The fast convex pressing device for a precision sheet metal riveting machine for semiconductor equipment according to claim 4, characterized in that: The torsion spring (4) can be slidably sleeved on the outer periphery of the second positioning pin (5).

7. The rapid convex pressing device of the semiconductor equipment precision sheet metal riveting machine according to claim 4, characterized in that: The outer periphery of the second positioning pin (5) is symmetrically provided with grooves (501) along its central axis.

8. The rapid convex pressing device of the semiconductor equipment precision sheet metal riveting machine according to claim 2, characterized in that: The number of the limiting sliding grooves (211) is at least two, and the limiting sliding grooves (211) on the lower die base (21) are arranged in a circular array.

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