Busbar rivet pressing device

Abstract

The utility model discloses a busbar rivet pressing device, which belongs to the technical field of busbar production equipment, and comprises a frame and a rivet pressing mechanism, the rivet pressing mechanism comprises a rivet pressing die arranged above a workbench, a floating bearing mechanism arranged on the workbench, and a floating positioning mechanism connected to the bottom of a die holder in an up-down floating manner. According to the busbar rivet pressing device provided by the utility model, the contact is conveyed into the material pressing groove by the material pushing mechanism, the left-right position of the contact is restrained by the material pressing groove, the front-back position of the contact is restrained by the floating positioning mechanism and the material pushing plate, and the up-down position of the contact is restrained by the floating bearing mechanism, so that the contact is accurately aligned with a riveting hole in the busbar, and the rivet pressing success rate of the contact is improved.

Description

Technical Field

[0001] The utility model relates to a busbar riveting device and belongs to the technical field of busbar production equipment. Background Art

[0002] The busbar is a copper or aluminum busbar that connects the main switch of the power cabinet and the switches of each branch circuit in the power supply system. It is mainly used to connect and transmit current and signals. In T-shaped vertical branches, vertical elbows, sockets and other parts, it is often necessary to use the busbar for vertical tapping. Among them, crimping is a commonly used busbar tapping method. Figure 1 As shown in , during the operation, it is necessary to punch out a riveting hole with a concave-convex structure at the busbar tapping, and then press the matching contacts together by interference fit. Currently, the equipment that completes the above riveting operation has the problem of inaccurate contact positioning, and the success rate of contact riveting is low.

[0003] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a busbar riveting device, which enables the contacts to be accurately aligned with the riveting holes on the busbar, thereby improving the success rate of the contact riveting.

[0005] The utility model achieves the above-mentioned purpose by adopting the following technical solutions:

[0006] A busbar riveting device comprises a frame and a riveting mechanism, wherein the frame is provided with a workbench, and the riveting mechanism comprises a riveting die arranged above the workbench and a floating supporting mechanism arranged on the workbench;

[0007] The riveting die comprises a die base and a riveting die head, and the riveting die head is fixed at the bottom of the die base;

[0008] The floating support mechanism comprises:

[0009] A support platform is arranged on the top of the workbench, and a pressing groove penetrating the top surface and the first end surface of the support platform is provided at the first end of the support platform close to the riveting die head, and a channel penetrating up and down is provided at the bottom of the pressing groove;

[0010] The top block is formed by a large diameter section and a small diameter section connected up and down, the lateral dimension of the large diameter section is larger than the lateral dimension of the channel, a mounting groove is provided on the top of the workbench below the supporting platform, the bottom of the large diameter section is supported in the mounting groove by a vertically arranged first spring, and under the action of the elastic force of the first spring, the small diameter section extends through the channel to the pressing groove.

[0011] Optionally, the riveting mechanism also includes a floating positioning mechanism that is connected to the bottom of the die base in an up and down floating manner. The floating positioning mechanism is arranged horizontally side by side on one side of the riveting die head. When no external force is applied, there is a spacing distance between the floating positioning mechanism and the die base and the lower end of the floating positioning mechanism is lower than the lower end of the riveting die head.

[0012] Optionally, the floating positioning mechanism includes a positioning block, which is connected to the mold base through a connecting bolt rod, the connecting bolt rod has a rod body and a bolt head, the outer diameter of the bolt head is larger than the outer diameter of the rod body, the mold base is provided with a connecting hole running through up and down, the connecting hole is formed by a large hole section and a small hole section connected up and down, the inner diameter of the small hole section is smaller than the outer diameter of the bolt head, the bolt head is placed in the large hole section, the rod body is extended through the small hole section and is fixedly connected to the positioning block, and the connecting bolt rod can be raised and lowered in the connecting hole.

[0013] Optionally, the positioning block and the mold base are also connected via a second spring arranged vertically.

[0014] Optionally, the riveting die also includes a first driving mechanism for driving the die base to move up and down.

[0015] Optionally, a material guiding groove is further provided on the top surface of the supporting platform, and the material guiding groove extends from the material pressing groove in a straight line to the second end, and the groove bottom of the material guiding groove is higher than the groove bottom of the material pressing groove.

[0016] Optionally, the busbar riveting device provided by the utility model further includes a pushing mechanism, which includes a material box and a pushing plate, the upper and lower ends of the material box are open, the bottom ends of two oppositely arranged side walls of the material box are respectively provided with support plates horizontally, and the bottom ends of the other two oppositely arranged side walls of the material box are provided with pushing openings, and the pushing openings face the second end of the guide groove; the pushing plate can make a linear reciprocating movement through the pushing opening.

[0017] Optionally, the pushing mechanism further includes a second driving mechanism for driving the pushing plate to move linearly back and forth.

[0018] Optionally, the bottom of the large-diameter section and the bottom of the installation groove are both provided with first spring grooves, and the two ends of the first spring are respectively connected to the two first spring grooves.

[0019] Optionally, second spring grooves are relatively formed on the top of the positioning block and the bottom of the mold base, and two ends of the second spring are respectively connected to the two second spring grooves.

[0020] The beneficial effects of this application include but are not limited to:

[0021] The utility model provides a busbar riveting device, in which the contact is sent into the pressure groove by the pushing mechanism, the left and right positions of the contact are constrained by the pressure groove, the front and rear positions are constrained by the floating positioning mechanism and the pushing plate, and the upper and lower positions are constrained by the floating supporting mechanism, so that the contact is accurately aligned with the riveting hole on the busbar, thereby improving the success rate of contact riveting. In the process of the riveting die head moving downward with the die base to apply pressure to the contact, the top block will move downward, and at the same time, the distance between the positioning block and the die base will become smaller, so as to prevent the moving stroke of the riveting die from being affected, so that the contact can be completely pressed into the riveting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the riveting holes on the contacts and the busbar;

[0024] Figure 2 A schematic diagram of the structure of the busbar riveting device provided by the utility model;

[0025] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0026] Figure 4 It is a structural schematic diagram of the supporting platform and the top block;

[0027] Figure 5 It is a structural schematic diagram of the supporting platform;

[0028] Figure 6 Schematic diagram of the riveting process of the contact and the busbar, wherein Figure (6-1) is a schematic diagram of the die base moving downward to approach the contact, and Figure (6-2) is a schematic diagram of the die base continuing to move downward to press the contact into the riveting hole;

[0029] Figure 7 It is a partial cross-sectional view of the top block and the mold base;

[0030] Figure 8 is a schematic diagram of a material box;

[0031] Fig. 9 for Figure 8 Enlarged view of part B in the middle.

[0032] In the figure, 1, contact; 2, busbar; 21, riveting hole; 100, frame; 200, workbench; 310, die base; 320, riveting die head; 330, first driving mechanism; 410, supporting platform; 411, pressing groove; 412, channel; 420, top block; 430, mounting groove; 440, first spring; 450, material guide groove; 500, floating positioning mechanism; 510, positioning block; 520, connecting bolt rod; 530, connecting hole; 540, second spring; 610, material box; 620, pushing plate; 630, supporting plate; 640, pushing port; 650, second driving mechanism; 700, punching die. DETAILED DESCRIPTION

[0033] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0034] It should be noted that many specific details are described in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0035] like Figure 2-Figure 7 As shown in , the busbar riveting device provided by the utility model includes a frame 100 and a riveting mechanism, and the frame 100 is provided with a workbench 200.

[0036] The riveting mechanism includes a riveting die disposed above the workbench 200 and a floating supporting mechanism disposed on the workbench 200 .

[0037] During operation, the busbar is placed on the workbench 200, the rear end of the contact 1 is supported on the floating support mechanism, and the riveting end, i.e., the front end, of the contact is located above the riveting hole 21 on the busbar 2. The floating support mechanism can provide an upward thrust to the contact and move downward with the contact when the contact is pressed. The riveting die is used to apply pressure to the contact to press the contact 1 into the riveting hole 21 on the busbar 2.

[0038] Specifically, Figure 3 As shown in , the riveting die includes a die base 310 and a riveting die head 320, and the riveting die head 320 is fixed at the bottom of the die base 310. The riveting die also includes a first driving mechanism 330 for driving the die base 310 to move up and down, and the first driving mechanism 330 is fixed on the frame 100. The first driving mechanism 330 drives the die base 310 and the riveting die head to move downward, so that the riveting die head 320 acts on the contact.

[0039] The floating supporting mechanism includes a supporting platform 410 and a top block 420 .

[0040] Specifically, the support platform 410 is disposed on the top of the workbench 200. Figure 4 and Figure 5 As shown in the figure, the first end of the support platform 410 near the riveting die head 320 is provided with a pressing groove 411 penetrating the top surface and the first end surface of the support platform 410, and the bottom of the pressing groove 411 is provided with a channel 412 penetrating up and down. When the riveting die applies pressure to the contact, the contact moves downward to the bottom surface of the pressing groove 411, so that the contact is pressed into the riveting hole on the busbar.

[0041] In order to ensure that the contact is completely pressed into the riveting hole, the bottom of the pressing groove 411 should not be higher than the top surface of the workbench 200, and the top surface of the top block 420 should not be higher than the top surface of the workbench 200 when the top block 420 moves downward.

[0042] Specifically, the top block 420 is formed by connecting a large diameter section and a small diameter section up and down, the lateral dimension of the large diameter section is larger than the lateral dimension of the channel 412, a mounting groove 430 is provided on the top of the workbench 200 below the support platform 410, the bottom of the large diameter section is supported in the mounting groove 430 by a vertically arranged first spring 440, and the small diameter section extends to the pressing groove 411 through the channel 412 under the elastic force of the first spring 440. Limited by the size of the channel 412, the large diameter section of the top block 420 is blocked in the mounting groove 430, preventing the top block 420 from upwardly escaping from the mounting groove 430.

[0043] Typically, first spring grooves are provided at the bottom of the large diameter section and the bottom of the installation groove 430 , and two ends of the first spring 440 are respectively connected to the two first spring grooves.

[0044] During operation, the contact moves to the pressing groove 411 and is located at the top of the top block 420. Under the elastic force of the first spring 440, the contact is held between the press riveting die 320 and the top block 420. The size of the pressing groove 411 matches the contact to prevent the contact from moving left and right. At the same time, with the assistance of the floating support mechanism, the contact is pressed against the bottom of the press riveting die 320. In this way, the position of the contact can be limited, so that the contact can be accurately pressed into the riveting hole, and the success rate of press riveting can be improved.

[0045] Usually, the contact is pushed into the pressing groove 411 in the horizontal direction for riveting. In a preferred embodiment, the top surface of the top block 420 is set as a slope, and the slope faces the contact pushing direction. During the movement of the contact, the contact contacts the slope, gradually pressing the top block 420 downward, so that the contact moves smoothly to the top of the top block 420.

[0046] Further, such as Figure 6As shown in , the riveting mechanism also includes a floating positioning mechanism 500 that floats up and down and is connected to the bottom of the die base 310. The floating positioning mechanism 500 is arranged horizontally and side by side on one side of the riveting die head 320. When no external force is applied, there is a spacing distance d between the floating positioning mechanism 500 and the die base 310, and the lower end of the floating positioning mechanism 500 is lower than the lower end of the riveting die head 320. When the contact moves forward, the front end of the contact will be blocked by the floating positioning mechanism 500 and cannot continue to move. In this way, the front and rear positions of the contact are positioned, and further accurate positioning of the contact is achieved. During operation, after the die base 310 moves downward a certain distance, the lower end of the floating positioning mechanism 500 will rest on the busbar, as shown in FIG. Figure 6 As shown in (6-1) in the figure, when the die base 310 continues to move downward, the floating positioning mechanism 500 moves upward relative to the die base, so that the top of the floating positioning mechanism 500 is close to the bottom of the die base 310. In this way, the distance d between the two is eliminated to ensure the downward movement of the die base 310, so that the riveting die head 320 can completely press the contact into the riveting hole of the busbar. Figure 6 As shown in (6-2).

[0047] In one specific embodiment, Figure 7 As shown in , the floating positioning mechanism 500 includes a positioning block 510, which is connected to the mold base 310 through a connecting bolt rod 520. The connecting bolt rod 520 has a rod body and a bolt head, and the outer diameter of the bolt head is larger than the outer diameter of the rod body. The mold base 310 is provided with a connecting hole 530 that runs through from top to bottom. The connecting hole is formed by connecting a large hole section and a small hole section from top to bottom. The inner diameter of the small hole section is smaller than the outer diameter of the bolt head. The bolt head is placed in the large hole section. After the rod body extends through the small hole section, it is fixedly connected to the positioning block 510, and the connecting bolt rod 520 can be raised and lowered in the connecting hole 530. Restricted by the small hole section, the bolt head of the connecting bolt rod 520 is blocked in the large hole section to prevent the connecting bolt rod 520 from detaching from the connecting hole, and then the positioning block 510 is installed at the bottom of the mold base 310.

[0048] like Figure 6 and Figure 7 As shown in , during the riveting process, the die base 310 moves downward, so that the lower end of the positioning block 510 abuts against the top of the busbar. When the die base 310 continues to move downward, the connecting bolt rod 520 will move upward relative to the die base 310 in the connecting hole, so that the distance between the die base 310 and the positioning block 510 becomes smaller.

[0049] In a preferred embodiment, the positioning block 510 and the die base 310 are further connected by a second spring 540 arranged vertically. Under the action of the second spring 540, the positioning block 510 will be kept at a position lower than the riveting die head 320, thus providing a blocking portion to position the contact to stop moving forward. When the die base 310 moves downward, the distance between the positioning block 510 and the die base 310 becomes smaller, and the second spring 540 is compressed and shortened.

[0050] Typically, second spring grooves are formed at the top of the positioning stopper 510 and the bottom of the mold base 310 , and two ends of the second spring are connected to the two second spring grooves respectively.

[0051] In a preferred embodiment, Figure 5 As shown in FIG, a guide groove 450 is further provided on the top surface of the support platform 410. The guide groove 450 extends from the pressing groove 411 to the second end along a straight line, and the bottom of the guide groove 450 is higher than the bottom of the pressing groove 411. The size of the guide groove matches the size of the contact, and the left and right positions of the contact are constrained by the guide groove during the forward movement of the contact.

[0052] Further, such as Figure 2 and Figure 8 , Fig. 9 As shown in , the busbar riveting device provided by the utility model also includes a pushing mechanism, which is used to push the contact into the pressure groove 411 through the guide groove. Specifically, the pushing mechanism includes a material box 610 and a pushing plate 620. The upper and lower ends of the material box 610 are open, and the bottom ends of two oppositely arranged side walls of the material box are respectively provided with support plates 630 horizontally, and the bottom ends of the other two oppositely arranged side walls of the material box are both provided with a pushing port 640, and the pushing port faces the second end of the guide groove; the pushing plate can move back and forth in a straight line in the direction of the guide groove through the pushing port. When in use, the contacts are stacked up and down in the material box, and the pushing plate moves forward and pushes out the bottom contact in the process of passing through the pushing port. After the contact is pushed into the pressure groove 411, the pushing plate retreats backward. When the pushing plate is completely withdrawn from the material box, the contact in the material box will move downward, and the contact will be pushed out when the pushing plate moves forward.

[0053] It should be noted that in order to ensure the mechanical strength and pushing distance of the push plate, the push plate needs to have a certain length and thickness, and its thickness is usually greater than the thickness of the contact. In order to ensure that the push plate can smoothly push out the bottom contact, the top surface of the push plate should not be higher than the top surface of the bottom contact, and the distance between the two support plates can allow the push plate to pass. The vertical opening size of the push port is greater than the thickness of one contact and less than the thickness of two contacts, ensuring that only one contact is pushed out each time.

[0054] Furthermore, the pushing mechanism also includes a second driving mechanism 650 for driving the pushing plate to move linearly back and forth.

[0055] Typically, the first driving mechanism 330 uses a hydraulic cylinder, and the second driving mechanism uses a pneumatic cylinder.

[0056] Figure 2In the figure, the punching die 700 is on the right side of the riveting die. When working, the busbar is sent to the punching station by the centering clamp to punch the riveting holes, and then sent to the top of the workbench 200 of the riveting station by the clamp. The contact is sent to the pressing groove 411 by the pushing mechanism. The left and right positions of the contact are constrained by the pressing groove 411, the front and rear positions are constrained by the floating positioning mechanism 500 and the pushing plate, and the upper and lower positions are constrained by the floating supporting mechanism, so that the contact is accurately aligned with the riveting holes on the busbar, thereby improving the success rate of contact riveting.

[0057] When the riveting die moves downward with the die base 310 to rivet the contacts, the top block 420 moves downward, and the distance between the positioning block 510 and the die base 310 becomes smaller, so as to prevent the moving stroke of the riveting die from being affected.

[0058] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] The above specific implementation manner cannot be used as a limitation on the protection scope of the utility model. For technicians in this technical field, any replacement, improvement or transformation made to the implementation manner of the utility model falls within the protection scope of the utility model.

[0061] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A busbar riveting device, comprising a frame and a riveting mechanism, wherein the frame is provided with a workbench, characterized in that: The riveting mechanism comprises a riveting die arranged above the workbench and a floating supporting mechanism arranged on the workbench; The riveting die comprises a die base and a riveting die head, and the riveting die head is fixed at the bottom of the die base; The floating support mechanism comprises: A support platform is arranged on the top of the workbench, and a pressing groove penetrating the top surface and the first end surface of the support platform is provided at the first end of the support platform close to the riveting die head, and a channel penetrating up and down is provided at the bottom of the pressing groove; The top block is formed by a large diameter section and a small diameter section connected up and down, the lateral dimension of the large diameter section is larger than the lateral dimension of the channel, a mounting groove is provided on the top of the workbench below the supporting platform, the bottom of the large diameter section is supported in the mounting groove by a vertically arranged first spring, and under the action of the elastic force of the first spring, the small diameter section extends through the channel to the pressing groove.

2. The busbar riveting device according to claim 1 is characterized in that: The riveting mechanism also includes a floating positioning mechanism that floats up and down and is connected to the bottom of the die base. The floating positioning mechanism is arranged side by side laterally on one side of the riveting die head. When no external force is applied, there is a spacing distance between the floating positioning mechanism and the die base and the lower end of the floating positioning mechanism is lower than the lower end of the riveting die head.

3. The busbar riveting device according to claim 2 is characterized in that: The floating positioning mechanism includes a positioning block, which is connected to the mold base through a connecting bolt rod. The connecting bolt rod has a rod body and a bolt head. The outer diameter of the bolt head is larger than the outer diameter of the rod body. The mold base is provided with a connecting hole that passes through up and down. The connecting hole is formed by a large hole section and a small hole section connected up and down. The inner diameter of the small hole section is smaller than the outer diameter of the bolt head. The bolt head is placed in the large hole section. The rod body is fixedly connected to the positioning block after extending through the small hole section. The connecting bolt rod can be raised and lowered in the connecting hole.

4. The busbar riveting device according to claim 3 is characterized in that: The positioning stopper and the mold base are also connected via a second spring arranged vertically.

5. The busbar riveting device according to claim 1, characterized in that: The riveting die also includes a first driving mechanism for driving the die base to move up and down.

6. The busbar riveting device according to claim 1, characterized in that: The top surface of the supporting platform is also provided with a material guiding groove, which extends from the material pressing groove to the second end along a straight line, and the groove bottom of the material guiding groove is higher than the groove bottom of the material pressing groove.

7. The busbar riveting device according to claim 6, characterized in that: It also includes a pushing mechanism, which includes a material box and a pushing plate. The upper and lower ends of the material box are open, and the bottom ends of two oppositely arranged side walls of the material box are respectively provided with support plates horizontally, and the bottom ends of the other two oppositely arranged side walls of the material box are each provided with a pushing opening, and the pushing opening faces the second end of the material guide groove; the pushing plate can make a linear reciprocating movement through the pushing opening.

8. The busbar riveting device according to claim 7, characterized in that: The pushing mechanism also includes a second driving mechanism for driving the pushing plate to move linearly back and forth.

9. The busbar riveting device according to claim 1, characterized in that: The bottom of the large diameter section and the bottom of the installation groove are both provided with first spring grooves, and the two ends of the first spring are respectively connected to the two first spring grooves.

10. The busbar riveting device according to claim 4, characterized in that: The top of the positioning block and the bottom of the mold base are oppositely provided with second spring grooves, and the two ends of the second spring are respectively connected to the two second spring grooves.

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